CN114590235B

CN114590235B - Self-exhausting angle cock

Info

Publication number: CN114590235B
Application number: CN202210229561.3A
Authority: CN
Inventors: 刘保华; 田宇; 宁波; 罗军伟; 李涛; 王开恩; 王盛; 肖八励
Original assignee: Meishan CRRC Brake Science and Technology Co Ltd
Current assignee: Meishan CRRC Brake Science and Technology Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2023-09-26
Anticipated expiration: 2042-03-09
Also published as: CN114590235A

Abstract

The invention discloses a self-exhausting angle cock, which comprises a cock body, wherein a three-way air inlet, an air outlet and a self-exhausting opening are arranged in the cock body, an action rod which moves between the air inlet and the self-exhausting opening is arranged in the cock body, and the action rod is connected with a handle. The invention has the beneficial effects that: the sealing adopts the action of large spring force, so that the sealing effect is good; the dust filtering device is added to protect the lip edge sealing gasket, so that the sealing effect is improved and the service life is prolonged; the sealing device is driven to linearly displace by circumferential rotation, and the sealing effect is better when the rubber piece contracts under the low temperature condition under the action of spring force or the pressure of pressure air.

Description

Self-exhausting angle cock

Technical Field

The invention relates to a braking device, in particular to a self-exhausting angle cock.

Background

The angle cock is an important component of a rolling stock brake device and is used for connecting a brake main pipe and a hose connector. According to the standard, there are a flip-flop according to UIC standard, a flip-flop according to AAR standard, a flip-flop according to TB, and the like. According to the function classification, the angle cock with the self-exhausting function and the angle cock without the self-exhausting function are provided. The traditional angle cock has poor sealing performance, and a novel angle cock needs to be developed.

Disclosure of Invention

The invention aims at: the self-exhausting angle cock solves the problem of tightness of the existing angle cock, and a dust filtering component is arranged at the exhaust port end and is used for realizing controllable mechanical closing of a brake main pipe or other air main pipes.

The aim of the invention is achieved by the following technical scheme:

a self-exhausting angle cock comprises a cock body, wherein a three-way air inlet, an air outlet and a self-exhaust opening are arranged in the cock body, an action rod which moves between the air inlet and the self-exhaust opening is arranged in the cock body, and the action rod is connected with a handle.

Further, the air inlet is in threaded connection with the connector, and a connector sealing ring is arranged between the connector and the plug door body.

Further, the action rod comprises a main rod body, an air inlet position sealing ring and a gasket are sleeved on the main rod body, the air inlet position sealing ring is arranged on the gasket, a spring is arranged between the gasket and the main rod body, and an air outlet position sealing ring is arranged on the main rod body.

Further, the total body of rod include action pole head and action pole, action pole head is connected with the action pole, air inlet position sealing washer, packing ring and spring housing establish on the action pole head, air inlet position sealing washer, packing ring and spring housing establish in the action pole, the outside at the action pole is fixed to the gas vent position sealing washer.

Further, the action rod head is connected with the action rod through a bolt.

Further, the action rod head is provided with an arc-shaped guide groove.

Further, the handle is connected with the eccentric shaft, and the eccentric shaft is clamped on the action rod.

Further, the self-exhaust port is connected with the dust filtering sleeve.

Further, the dust filter sleeve comprises a dust filter sleeve, a filter disc is arranged in the dust filter sleeve, and a retainer ring which is clamped with the filter disc is arranged in the dust filter sleeve.

Further, the plug door body is connected with a locking nut at the air outlet in a threaded manner.

The invention realizes the following functions:

1. the dust filter sleeve is designed, so that dust can be filtered, air can be exhausted, water can be discharged, and the service life of part of parts can be prolonged.

2. The sealing element adopts a lip edge style, and has good sealing effect.

3. The dust filter sleeve is connected with the plug door body in a threaded manner, so that the plug door body is convenient to process and the folded angle plug door is convenient to maintain.

The invention has the beneficial effects that:

1. the sealing adopts the action of large spring force, and the sealing effect is good.

2. The dust filtering device is added to protect the lip edge sealing gasket, so that the sealing effect is improved and the service life is prolonged.

3. The sealing device is driven to linearly displace by circumferential rotation, and the sealing effect is better when the rubber piece contracts under the low temperature condition under the action of spring force or the pressure of pressure air.

The foregoing inventive subject matter and various further alternatives thereof may be freely combined to form a plurality of alternatives, all of which are employable and claimed herein; and the invention may be freely combined between choices (of non-conflicting choices) and with other choices as well. Various combinations will be apparent to those skilled in the art from a review of the present disclosure, and are not intended to be exhaustive or all of the present disclosure.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

FIG. 2 is a schematic view of the construction of the action bars of the present invention.

FIG. 3 is a schematic view of the structure of the dust filter cover of the present invention.

Fig. 4 is a schematic view of the present invention in an open state.

Fig. 5 is a schematic view of the present invention in a closed state.

In the figure: the device comprises a 1-joint, a 2-joint sealing ring, a 3-action rod, a 4-plug door body, a 5-handle, a 6-eccentric shaft and a 7-dust filtering sleeve, wherein the 8-locking nut, a 41-air inlet, a 42-air outlet and a 43-self-air outlet; 31-action rod heads, 32-air inlet position sealing rings, 33-springs, 34-action rods, 35-air outlet position sealing rings, 36-washers and 37-bolts; 71-dust filtering sleeve, 72-filter disc and 73-retainer ring.

Detailed Description

The invention will be further described with reference to specific examples and figures.

Referring to fig. 1 to 3, the self-exhausting angle cock comprises a joint 1, a joint sealing ring 2, an action rod component 3, a cock body 4, a handle 5, an eccentric shaft 6, a dust filter sleeve component 7 and a locking nut 8.

The inside of the plug door body 4 is provided with an air inlet 41, an air outlet 42 and an air self-exhaust port 43 which are mutually communicated, the inside of the plug door body 4 is provided with an action rod assembly 3 which moves between the air inlet 41 and the air self-exhaust port 43, the action rod assembly 3 is connected with a handle 5, the movable position of the action rod assembly 3 is controlled by the handle 5, the air inlet 41 or the air self-exhaust port 43 is blocked and closed, and the other two passages are communicated.

The air inlet 41 is screwed with the joint 1, and the joint 1 is used for connecting a brake main pipe. And a joint sealing ring 2 is arranged between the joint 1 and the plug door body 4, so that the tightness between the joint 1 and the plug door body 4 is ensured.

The action bar assembly 3 includes an action bar head 31, an air inlet position seal 32, a spring 33, an action bar 34, an air outlet position seal 35 (preferably a lip seal), a washer 36 and a bolt 37. The action rod head 31 is connected with the action rod 34 through a bolt 37, the air inlet sealing ring 32, the gasket 36 and the spring 33 are sleeved on the action rod head 31, the air inlet sealing ring 32, the gasket 36 and the spring 33 are covered in the action rod 34, and the air outlet sealing ring 35 is fixed on the outer side of the action rod 34.

The action rod head 31 is provided with an arc-shaped guide groove which is used for guiding and transiting air flow when the air inlet 41 is communicated with the air outlet 42, so that wind resistance is reduced. The gap between the outer side of the action bars 31 and the inner side of the action bars 34 forms a slide way to realize the axial sliding of the air inlet sealing ring 32 and the gasket 36.

The air inlet sealing ring 32 is arranged on the gasket 36, a spring 33 is arranged between the gasket 36 and the action rod 34, the spring 33 provides elasticity for the air inlet sealing ring 32 through the gasket 36, and when the air inlet sealing ring 32 is in a closed position, the air inlet sealing ring 32 is tightly attached to the joint 1, so that good sealing blocking is formed on the air inlet.

The outside of action bar 34 is equipped with the annular, and the gas vent position sealing washer 35 installs in the annular, and when opening the position, gas vent position sealing washer 35 closely laminates with stopper door body 4, forms good sealed blocking to self-exhaust port 43.

The handle 5 is fixedly connected with the eccentric shaft 6, the eccentric shaft 6 is rotatably arranged on the plug door body 4, and the eccentric shaft 6 can be driven to rotate through the handle 5. The eccentric shaft 6 is clamped in the vertical groove of the action rod 34. Because the action rod 34 of the action rod assembly 3 is slidably arranged in the plug door body 4, the action rod 34 is driven to slide left and right in the plug door body 4 through the rotary swing of the eccentric shaft 6, and the action rod assembly 3 is slid to the opening position or the closing position.

The self-exhaust port 43 is provided with a dust filtering sleeve component 7 which mainly has the self-exhaust function, and also has the dust filtering and water draining functions, protects parts such as lip seal rings and the like. The dust filter sleeve assembly 7 comprises a dust filter sleeve 71, the dust filter sleeve 71 is in threaded connection with the self-exhaust port 43, a filter disc 72 is arranged in the dust filter sleeve 71, and air purification and filtration are realized by using the filter disc 72. A retainer 73 for clamping the filter sheet 72 is provided in the dust filter cover 71, and the filter sheet 72 is mounted by the retainer 73.

The locking nut 8 positioned outside the air outlet 42 is connected with the plug door body 4 in a threaded manner.

The working flow of the invention is as follows: referring to fig. 4 and 5, the self-venting angle cock has two active positions, open and closed, and in the closed position has the function of venting air in the hose to atmosphere.

Open position: when the handle 5 is at about 20 degrees different from the horizontal position, the air path leading to the self-air outlet is sealed by the air outlet sealing ring 35 under the action of air pressure, so that the air inlet and the air outlet (one side of the hose connector) are communicated.

Closing position: when the external force drives the handle 5 to rotate anticlockwise from the opening position, the action bar assembly 3 is driven to move leftwards, the air outlet is communicated with the self-exhaust port, and at the moment, the pressure air in the hose starts to exhaust from the self-exhaust port. When the handle 5 is in the vertical position, the air inlet is sealed by the air inlet sealing ring 32 under the action of the spring force of the spring 33, and the bevel cock is in the closed position.

The foregoing basic embodiments of the invention, as well as other embodiments of the invention, can be freely combined to form numerous embodiments, all of which are contemplated and claimed. In the scheme of the invention, each selection example can be arbitrarily combined with any other basic example and selection example.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The utility model provides a self-venting angle cock, includes cock body (4), its characterized in that: the three-way air inlet (41), the air outlet (42) and the self-exhaust port (43) are arranged in the plug door body (4), an action rod component (3) which moves between the air inlet (41) and the self-exhaust port (43) is arranged in the plug door body (4), and the action rod component (3) is connected with the handle (5); the air inlet and the self-exhaust channel are arranged along the same direction; the movable position formed by the action bars is controlled by the handle, so that the air inlet or the self-exhaust port is plugged and closed, and the other two passages are communicated;

the action rod composed of the action rods is slidably arranged in the plug door body, and the handle drives the action rods to slide left and right in the plug door body, so that the action rod is slid to an opening position or a closing position;

the air inlet (41) is in threaded connection with the connector (1), and a connector sealing ring (2) is arranged between the connector (1) and the plug door body (4);

the action rod assembly (3) comprises a main rod body, an air inlet sealing ring (32) and a gasket (36) are sleeved on the main rod body, the air inlet sealing ring (32) is arranged on the gasket (36), a spring (33) is arranged between the gasket (36) and the main rod body, and an air outlet sealing ring (35) is arranged on the main rod body;

the total rod body comprises an action rod head (31) and an action rod (34), the action rod head (31) is connected with the action rod (34), an air inlet sealing ring (32), a gasket (36) and a spring (33) are sleeved on the action rod head (31), the air inlet sealing ring (32), the gasket (36) and the spring (33) are covered in the action rod (34), and an air outlet sealing ring (35) is fixed on the outer side of the action rod (34);

the action rod head (31) is connected with the action rod (34) through a bolt (37);

the action rod head (31) is provided with an arc-shaped guide groove;

the handle (5) is connected with the eccentric shaft (6), and the eccentric shaft (6) is clamped on the action rod component (3);

the self-exhaust port (43) is connected with the dust filtering sleeve (7);

the dust filter sleeve component (7) comprises a dust filter sleeve (71), a filter disc (72) is arranged in the dust filter sleeve (71), and a retainer ring (73) which is clamped with the filter disc (72) is arranged in the dust filter sleeve (71);

the plug door body (4) is connected with a locking nut (8) positioned at the air outlet (42) in a threaded manner.