Mistaken-closing prevention mechanism for angle cock of rail locomotive vehicle
A simple lock mechanism for railway vehicle angle valve doors secures the handle to prevent accidental closure, ensuring safe operation by maintaining the door open until intentionally closed.
Patent Information
- Application Number
- CN202422506226.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The corner plug door of existing rail vehicles is prone to be closed unintentionally when running at high speed or shut down, resulting in interruption of compressed air transmission and lack of effective anti-error shutdown measures.
An anti-fault closing mechanism including a ring and an insertion lock is designed. The ring is connected to the air outlet duct of the corner plug door. The insertion lock locks the handle when it is opened to prevent unintentional rotation. The insertion lock can be easily pulled out to close the plug door when needed.
Effectively prevent the corner plug door from closing unintentionally, ensure the unobstructed compressed air, avoid accidents, and operate with simple and convenient convenience.
Smart Images
Figure CN223100722U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail vehicle parts, in particular to a rail vehicle angle plug door anti-misclosing mechanism. Background Art
[0002] The angle plug is a control valve that connects and cuts off the air between locomotives, locomotives and vehicles, and vehicles. After the handle is lifted, it can be rotated 90 degrees to open and close the air path. Rail vehicles are braked by compressed air. The compressed air is provided by the air compressor of the locomotive, and is transmitted to each car through the brake hose between the cars through the train's brake main pipe. Only when the angle plug is opened can the compressed air be transmitted to the car, and then to the last car in turn, to ensure the smooth flow of the train main pipe.
[0003] The biggest taboo in train operation is the closing of the corner gate, which can cause major accidents. Since the corner gate has the disadvantage of not being self-locking when in the open state, when the train is running at high speed, the corner gate may be closed due to poor binding of the tarpaulin, loose ropes, etc.; or when the train is stopped, passers-by and blind flow of people may accidentally close the corner gate by climbing over the vehicle connection. How to prevent the improper closing of the corner gate? So far, the railway department has not yet had better preventive measures and methods, which is a difficult problem that needs to be solved urgently. Utility Model Content
[0004] In order to overcome the above disadvantages, the technical problem to be solved by the utility model is to provide a railway vehicle corner plug door anti-misclosing mechanism which has a simple structural design and can prevent the corner plug door from being accidentally closed.
[0005] In order to solve the above technical problems, the technical solution of the utility model is:
[0006] The anti-wrong closing mechanism of the angle plug door of a railway vehicle comprises:
[0007] An embracing ring, wherein the embracing ring has an opening, and the two ends of the opening of the embracing ring are respectively bent outward to form limiting arms, and the bottoms of the two limiting arms are correspondingly provided with mounting holes, and the tops of the two limiting arms are correspondingly provided with locking holes;
[0008] The mortise lock comprises a locking rod and a locking tongue, wherein the locking tongue is hinged to the rear end of the locking rod, and the locking rod and the locking tongue can be respectively inserted into two locking holes.
[0009] As a preferred technical solution, a limiting groove is provided at the rear end of the locking rod, and the locking tongue has a tongue base inserted in the limiting groove, and the tongue base is hinged to the locking rod through a pin.
[0010] As a preferred technical solution, a lock handle is provided at the head end of the lock rod.
[0011] As a preferred technical solution, a chain is provided between the lock handle and the holding ring.
[0012] Due to the adoption of the above technical solution, the present utility model has at least the following beneficial effects: The anti-misclosure mechanism is installed at the air outlet pipe of the angle cock through the holding ring and the fastening bolt. When the angle cock is in the open state, the plug lock is inserted into the locking hole on one side of the limiting arm, so that the lock tongue passes through the locking hole on the other side, and then the lock rod is pushed forward tightly. A locking structure will be formed by the lock rod, the lock tongue and the limiting arm. In this way, after the plug lock is inserted between the two limiting arms, it can prevent the handle of the angle cock from being accidentally rotated and causing the angle cock to be accidentally closed; when it is necessary to close the angle cock, first pull out the lock tongue from the locking hole, and then pull out the lock rod, then the handle can be lifted and rotated to cut off the air path; the anti-misclosure mechanism has a simple structural design and is convenient to operate and use, and can effectively solve the problem of the angle cock being accidentally closed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model. Among them:
[0014] Figure 1 is the front view structural schematic diagram of the embodiment of the present utility model;
[0015] Figure 2 is the side view structural schematic diagram of the embodiment of the present utility model;
[0016] Figure 3 is the front view structural schematic diagram of the plug lock in the embodiment of the present utility model;
[0017] Figure 4 is the top view structural schematic diagram of the plug lock in the embodiment of the present utility model;
[0018] Figure 5 is the sectional structural schematic diagram of the holding ring in the embodiment of the present utility model;
[0019] Figure 6 is the state reference diagram when the present utility model is applied;
[0020] Figure 7 is Figure 6 the sectional structural schematic diagram in the A-A direction of
[0021] Figure 8 is the state reference diagram when the plug lock is pulled out from the limiting arm. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present utility model are described by way of illustration. It is understood that those of ordinary skill in the art can recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the drawings and the description are illustrative in nature and not intended to limit the scope of protection of the claims.
[0023] As Figures 1 to 5 shown, the anti-misclosure mechanism for the angle cock of rail vehicles includes a holding ring 10 and a plug lock 20. The holding ring 10 has an opening 11 for facilitating the installation connection with the outlet air pipe of the angle cock. At both ends of the opening 11 of the holding ring 10, limiting arms 12 are bent outward respectively. Mounting holes 13 are correspondingly provided at the bottoms of the two limiting arms 12, and fastening bolts can be inserted through the mounting holes 13, so as to realize the installation and fixation of the holding ring 10 and the angle cock. Locking holes 14 are correspondingly provided at the tops of the two limiting arms 12 for the insertion and locking of the plug lock 20.
[0024] Referring to Figure 3 and Figure 4 , the plug lock 20 includes a lock rod 21 and a lock tongue 22. The lock tongue 22 is hinged to the tail end of the lock rod 21. In this way, during application, the lock rod 21 and the lock tongue 22 can be respectively inserted into the two locking holes 14 to achieve locking, which is convenient for operation and use.
[0025] In this embodiment, a limiting groove 23 is provided at the tail end of the lock rod 21, and the lock tongue 22 has a tongue base 24 inserted into the limiting groove 23. The tongue base 24 is hinged to the lock rod 21 through a pin shaft 25. A lock handle 26 is provided at the head end of the lock rod 21 for facilitating the staff to lift and use. A chain 30 is provided between the lock handle 26 and the holding ring 10. In this way, after the plug lock 20 is pulled out from the limiting arm 12, under the action of the chain, the plug lock 20 can naturally hang below the side of the holding ring 10 (refer to Figure 8 ), avoiding the loss of the plug lock 20 in the non-use state and improving the convenience of use.
[0026] Referring to Figures 6 to 8 , the anti-misclosure mechanism is installed at the outlet air pipe 51 of the angle cock 50 through a fastening bolt 40 between the holding ring 10 and the two limiting arms 12. When the angle cock 50 is in the open state (refer to Figure 6 and Figure 7) Insert the plug lock 20 into the locking hole of one side limiting arm 12, so that the locking tongue 22 passes through the locking hole on the other side, and then push the locking rod 21 forward tightly. The locking rod 21, the locking tongue 22 and the limiting arm 12 will form a locking structure, thereby restricting the rotation of the handle 52 of the angle cock 50, and preventing the handle 52 from being accidentally rotated to cause the accidental closing of the angle cock; reference Figure 8 , when it is necessary to close the angle cock 50, first pull out the locking tongue 22 from the locking hole, and then pull out the locking rod 21. In this way, the plug lock 20 naturally hangs under the side of the holding ring 10 and loses the restricting effect on the handle 52. At this time, the handle 52 can be lifted and rotated to cut off the air passage; the anti-misclosure mechanism has a simple structural design and is convenient to operate and use, and can effectively solve the problem of the accidental closing of the angle cock.
[0027] The above are only illustrative specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.
Claims
1. Anti-misclosure mechanism for angle cock of rail locomotives and rolling stock, characterized in that Comprising: A holding ring having an opening, at both ends of the opening of the holding ring are bent outwards respectively to form limiting arms, mounting holes are correspondingly provided at the bottoms of the two limiting arms, and locking holes are correspondingly provided at the tops of the two limiting arms; A plug lock, the plug lock includes a lock rod and a lock tongue, the lock tongue is hinged to the tail end of the lock rod, and the lock rod and the lock tongue can be respectively inserted into the two locking holes.
2. The anti-misclosure mechanism for the angle cock of the rail locomotive vehicle according to claim 1, wherein: A limiting groove is provided at the tail end of the lock rod, the lock tongue has a tongue base inserted into the limiting groove, and the tongue base is hinged to the lock rod through a pin shaft.
3. The anti-misclosure mechanism for the angle cock of railway locomotives and rolling stock according to claim 1 or 2, characterized in that: A lock handle is provided at the head end of the lock rod.
4. The anti-misclosure mechanism for the angle cock of the rail locomotive and vehicle according to claim 3, characterized in that: A chain is provided between the lock handle and the holding ring.