CN218293164U

CN218293164U - Lock mechanism for high-pressure tank of railway vehicle

Info

Publication number: CN218293164U
Application number: CN202221698387.9U
Authority: CN
Inventors: 孙毅; 徐俊; 石磊
Original assignee: Beijing CRRC CED Railway Electric Tech Co Ltd
Current assignee: Beijing CRRC CED Railway Electric Tech Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2023-01-13
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a lock mechanism for a high-pressure tank of a railway vehicle, which comprises a key, a lock device, a buckle, a limiting piece and a locking block; the lock device is arranged on the inner wall of the box body, the key is matched with the lock device, and the key is reserved on the outer side of the box body; the locking block is arranged on the inner wall of the box cover; the buckle is fixedly arranged on the axis of the lock device and matched with the locking block; the limiting sheet is installed and fixed at the position, close to the locking block, in the box body, so that the limiting of the buckle is formed. The structure is exquisite, easy and simple to handle, safe and reliable, can be applicable to the high-pressure tank of different grade type and use, realizes among the EMUs high-pressure system to the safety control of high-pressure tank, maintains high-pressure construction operating personnel's life safety.

Description

Lock mechanism for high-pressure tank of railway vehicle

Technical Field

The utility model relates to a rail vehicle technique especially relates to a latch mechanism for high-pressure tank for rail vehicle.

Background

In recent years, the mode that high-voltage components on the top of a high-speed railway motor train unit are integrated in a high-voltage box becomes the mainstream trend of the development of a high-voltage system of the motor train unit train, the integrated high-voltage box is divided into three types of the top, the inside and the bottom of the motor train unit according to the installation position, the high-voltage boxes installed on the top and the inside of the motor train unit are manually controlled by an earthing switch to complete the safety protection of the high-voltage box, the high-voltage boxes installed under the motor train unit are limited by the low operability of the installation position, the manual earthing switch is not applicable any more, the pneumatic control becomes the mainstream scheme, the safety interlocking protection of the high-voltage boxes needs to be realized by other measures, a safety lock is arranged on the high-voltage box to be an option, and the opening and closing of the high-voltage box are controlled by a key, so that the construction safety of maintenance workers is greatly improved.

The locking mechanism for the high-pressure tank in the prior art cannot meet the requirements on safety, practicability and high efficiency.

In view of this, the utility model discloses it is special.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a latch mechanism for high-pressure tank for rail vehicle to solve the above-mentioned technical problem who exists among the prior art.

The utility model aims at realizing through the following technical scheme:

the utility model discloses a lock mechanism for high-pressure tank of rail vehicle, including key 1, lock device 2, buckle 3, spacing piece 4, lock block 5;

the lock device 2 is arranged on the inner wall of the box body, the key 1 is matched with the lock device 2, and the key 1 is reserved on the outer side of the box body;

the locking block 5 is arranged on the inner wall of the box cover;

the buckle 3 is fixedly arranged on the axis of the lock device 2, and the buckle 3 is matched with the locking block 5;

the limiting piece 4 is fixedly installed at a position close to the locking block 5 inside the box body, and limiting of the buckle 3 is formed.

Compared with the prior art, the utility model provides a latch mechanism for rail vehicle's high-pressure tank, the structure is exquisite, easy and simple to handle, safe and reliable's latch mechanism, can be applicable to the high-pressure tank of different grade type and use, realizes among the EMUs high-pressure system to the safety control of high-pressure tank, maintains high-pressure construction operating personnel's life safety.

Drawings

Fig. 1 is a side view of a lock mechanism for a high pressure tank (closed state) in an embodiment of the present invention;

fig. 2 is a lock mechanism front view (closed state) for a high pressure tank in an embodiment of the present invention;

fig. 3 is a lock mechanism front view (open state) for a high pressure tank in an embodiment of the invention;

in the figure:

1. key, 2, locking device, 3, buckle, 4, spacing piece, 5, locking piece, 6, draw-in groove.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention; it is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of the embodiments, and that no limitation to the present invention is intended. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terms that may be used herein are first described as follows:

the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".

The terms "comprising," "including," "containing," "having," or other similar terms in describing these terms are to be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.

The term "consisting of 823070 \8230composition" means to exclude any technical characteristic elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the usual impurities associated therewith which do not include the technical features other than those explicitly listed. If the term occurs in only one clause of the claims, it is defined only as specifically listed in that clause, and elements recited in other clauses are not excluded from the overall claims.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be 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 meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not meant to imply or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and therefore are not to be construed as limiting herein.

Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art. The embodiment of the present invention does not indicate specific conditions, and the operation is performed according to the conventional conditions in the field or the conditions suggested by the manufacturer. The reagent or instrument used in the embodiment of the utility model does not indicate the manufacturer, and is a conventional product which can be purchased and obtained through market.

The utility model discloses a lock mechanism for high-pressure tank of rail vehicle, including key 1, locking device 2, buckle 3, spacing piece 4, locking piece 5;

the locking block 5 is arranged on the inner wall of the box cover;

The buckle 3 is provided with a clamping groove 6, and the limiting piece 4 is made of an elastic material;

when the box cover is not installed, the limiting sheet 4 is in a free state and is staggered with the clamping groove 6 to limit the buckle 3, the buckle 3 cannot rotate to the position, and a key cannot be drawn out;

after the box cover is installed, the limiting piece 4 is extruded and deformed by the locking block 5, the limiting piece 4 is aligned to the clamping groove 6, the clamping buckle 3 is released to be limited, the clamping buckle 3 rotates in place, and a key is drawn out.

Under the high-pressure case with the latch mechanism closure state:

on a box body installed on a box cover of a high-pressure box, a locking block 5 compresses a limiting piece 4, so that the limiting piece 4 deforms, the limiting effect on a buckle 3 is removed, a key 1 drives the buckle 3 to rotate to a locking position through the axis of a lock device 2, the buckle 3 and the locking block 5 form locking cooperation, the box body and the box cover are fixedly locked from the inside, after the locking is in place, the key 1 is unlocked from the lock device 2, and the key 1 is pulled out from the lock device 2;

under the high-pressure case with the latch mechanism open mode:

the key 1 unlocks from higher level's unit, take to high-voltage box department, key 1 inserts locking device 2, locking device 2 relieves the auto-lock state, rotate key 1, it is rotatory to drive locking device 2 axle center, buckle 3 rotates thereupon, break away from with locking piece 5, accomplish the inside unblock of box, case lid, the case lid is opened from the outside, spacing piece 4 is in spacing state, prevent buckle 3 to reach the locking position, lead to key 1 also can not put in place completely, key 1 and locking device 2 can not accomplish the unlock state, key 1 can not leave locking device 2.

To sum up, the utility model discloses a locking mechanism for high-pressure tank for rail vehicle installs and uses on the high-pressure tank, mainly realizes locking control and safety chain function to the high-pressure tank case lid. The two functions can be simultaneously realized, namely, if the box cover needs to be opened, the lock mechanism needs to be opened by using a key at first, and the box cover can be normally opened; 2. the box cover is not installed or is not installed in place, the lock mechanism cannot be locked, and the key cannot be taken down. The safety interlocking control to the high-voltage box can be realized through the above two functions, and the potential safety hazard caused by random opening and closing of the high-voltage box is prevented. The basic structure of the lock mechanism for the high-pressure tank comprises a key, a lock device, a buckle, a limiting sheet and a locking block, and the lock mechanism is shown in figure 1. Wherein the utility model discloses mainly designed high-pressure tank with the control cooperation mode of latch mechanism, adopted the structure of utmost simplification, do benefit to the installation and dismantle, lock piece and locking device separately arrange applicable box in the different grade type. The key is used for driving the buckle to synchronously rotate, so that the transmission mode is simplified, and the locking efficiency and convenience of the lock mechanism are realized. The novel lock mechanism for the high-pressure box is simple in structure, easy to achieve and high in reliability of the operating mechanism, and the assembling structure and the installing mode of the novel lock mechanism are shown in figures 2 and 3.

In order to show the technical solutions and the technical effects provided by the present invention more clearly, the following detailed description is provided in the embodiments of the present invention with specific embodiments.

Example 1

The utility model discloses a latch mechanism for high-pressure tank divide into case lid installation and box installation two parts, adopts the rotatory synchronous transmission's of key mode, realizes the rotatory synchronous transmission of key rotation control and buckle, and then realizes opening and the locking of high-pressure tank box and case lid.

The locking piece need be fixed on the case lid, arranges key, lock device, buckle, spacing piece etc. on the box, and the box wall outside is arranged in to the key for outside operation and control, the fixed box wall inboard of lock device, the buckle is fixed in the lock device pivot, and spacing piece is fixed in the position that is close to the case lid on the box. The key and the lock device are designed in a matching way to form a unique combined piece, so that the mixed use is avoided. The rotatory axle center that drives locking device of key is rotatory, and the buckle synchronous revolution of installation on the axle center forms locking and unblock function with the locking piece cooperation on the case lid. The key can be drawn out from the locking position, and the locking device is self-locked. The open position, spacing piece free state restricts the rotation of buckle, makes the key can not rotate the target in place simultaneously, and the key can not be taken out from the locking device, realizes the control to the key. The case lid is installed in place, and the spacing piece of locking piece compression is that the stopper warp, and the restriction of buckle is relieved, and the buckle arrives the position along with the key rotation, and the key can be taken out, realizes key and higher level safety chain. The embodiment of the utility model provides a novel latch mechanism for high-pressure tank for rail vehicle, overall structure assembly is simple, and the transmission is stable, is applicable to each type high-pressure tank, and application prospect is wide.

The utility model discloses a latch mechanism for high-pressure tank follows simple, high-efficient, convenient design theory, fuses the design with spare parts such as key, lock device, buckle, locking piece, spacing piece, through the normal running fit of key and lock device, drives the normal running fit of buckle and locking piece, realizes then the locking of high-pressure tank box and case lid and opens. The plug through the key realizes the control to high-pressure safety, avoids opening at will of high-pressure tank, can effectually prevent not closed and the hourglass closure phenomenon of high-pressure tank case lid simultaneously, very big reduction potential safety hazard. A key realizes two kinds of functions, and the synchronism and the high efficiency of key rotation and buckle action are realized to the synchronous transmission mode of this mechanism.

As shown in fig. 1 to 3:

high pressure is latch mechanism for case (as figure 1), and the main part divides two parts key 1, lock device 2, buckle 3, spacing piece 4 to install on the box, and locking piece 5 is installed on the case lid inner wall, opens the closure together along with the case lid. The utility model discloses a novel high-pressure tank is with latch mechanism's structure and assembly layout, high-pressure tank is with latch mechanism (as shown in figure 1 and figure 2) assembly mode does: the key 1 and the lock device 2 are designed in a matched mode, the only pairing requirement is met, and meanwhile, when the locking position is locked, the key 1 can be separated from the lock device 2, and the lock device 2 is self-locked. The lock device 2 is fixed on the inner wall of the box body, and the key 1 is reserved on the outer side of the box body to meet the operation requirement. Buckle 3 installation is fixed on the axle center of locking device 2, and key 1 drives the rotation of locking device 2 axle center, and buckle 3 synchronous revolution forms the cooperation with locking piece 5 and concerns, realizes the locking and opens the function. The limiting sheet 4 is fixedly arranged on the box body at a position close to the locking block 5 to limit the buckle 3. The lock mechanism for a high pressure tank will be described in detail below with reference to the opening and closing process of the tank cover.

The closing state of the novel lock mechanism for the high-pressure tank is shown in figures 1 and 2, and the specific action mode is as follows: after the completion maintenance operation, with the box of high-pressure tank case lid installation on, locking piece 5 compresses spacing piece 4 for spacing piece 4 produces and warp, removes the restriction to buckle 3, and key 1 drives buckle 3 through the axle center of locking device 2 and rotates locking position, and buckle 3 and locking piece 5 form the locking cooperation, with box and the fixed locking of case lid from the inside, guarantee that the case lid can not be opened from the outside. After the key 1 is locked in place, the key 1 is unlocked from the lock device 2, the key 1 is pulled out of the lock device 2, and the safety linkage with the vehicle superior unit can be completed.

The novel high-pressure box is shown in figure 3 with the lock mechanism open state, and the concrete action mode is as follows: when the high-pressure tank needs to be overhauled, the key 1 needs to be unlocked from the superior unit and taken to the high-pressure tank. The key 1 is inserted into the lock device 2, the lock device 2 is unlocked, and the key of the high-pressure box can only be inserted into the lock device of the high-pressure box due to the uniqueness matching requirement. The key 1 is rotated to drive the axle center of the lock device 2 to rotate, the buckle 3 with the fixed tail end rotates along with the axle center and is separated from the locking block 5, the unlocking of the inner parts of the box body and the box cover is completed, and the box cover can be opened from the outside. If the box cover is not installed or the box cover is not installed in place, the limiting piece 4 is in a limiting state and prevents the buckle 3 from reaching the locking position, the key 1 cannot be completely in place, the key 1 and the lock device 2 cannot complete the unlocking state, the key 1 cannot leave the lock device 2 and cannot complete safety linkage with a superior unit, the high-pressure box cannot meet the locking requirement, and the vehicle cannot be started.

The utility model discloses a latch mechanism for high-pressure tank is that a structure is exquisite, and is easy and simple to handle, safe and reliable's latch mechanism can be applicable to the high-pressure tank of different grade type and use, realizes the safety control to the high-pressure tank among the EMUs high-pressure system, can effectively maintain high-pressure construction operating personnel's life safety, has the guard action to the application of high-pressure tank.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. A lock mechanism for a high-pressure tank of a railway vehicle is characterized by comprising a key (1), a lock device (2), a buckle (3), a limiting sheet (4) and a locking block (5);

the lock device (2) is arranged on the inner wall of the box body, the key (1) is matched with the lock device (2), and the key (1) is reserved on the outer side of the box body;

the locking block (5) is arranged on the inner wall of the box cover;

the buckle (3) is fixedly arranged on the axis of the lock device (2), and the buckle (3) is matched with the locking block (5);

the limiting piece (4) is fixedly installed at the position, close to the locking block (5), in the box body, and limiting of the buckle (3) is achieved.

2. The lock mechanism for a high pressure tank for a railway vehicle as claimed in claim 1, wherein:

a clamping groove (6) is formed in the buckle (3), and the limiting piece (4) is made of an elastic material;

when the box cover is not installed, the limiting sheet (4) is in a free state and is staggered with the clamping groove (6) to limit the buckle (3), the buckle (3) cannot rotate to the position, and a key cannot be drawn out;

after the box cover is installed, the limiting piece (4) is extruded and deformed by the locking block (5), the limiting piece (4) is aligned to the clamping groove (6), the clamping buckle (3) is limited by release, the clamping buckle (3) rotates in place, and a key is pulled out.

3. The lock mechanism for a high pressure tank of a railway vehicle of claim 2, wherein:

under the high-pressure case with the latch mechanism closure state:

on the box body installed on the high-pressure box cover, the locking block (5) compresses the limiting piece (4) to enable the limiting piece (4) to deform and remove the limiting effect on the buckle (3), the buckle (3) is driven to rotate to the locking position by the key (1) through the axis of the lock device (2), the buckle (3) and the locking block (5) form locking matching, the box body and the box cover are fixed and locked from the inside, after the locking is in place, the key (1) is unlocked from the lock device (2), and the key (1) is pulled out from the lock device (2);

under the high-pressure case with the latch mechanism open mode:

key (1) is from higher level unit unblock, take to high-voltage box department, key (1) inserts locking device (2), self-locking state is relieved in locking device (2), rotate key (1), it is rotatory to drive locking device (2) axle center, buckle (3) are rotatory thereupon, break away from with locking piece (5), accomplish the box, the inside unblock of case lid, the case lid is opened from the outside, spacing piece (4) are in spacing state, prevent buckle (3) to reach the locking position, lead to key (1) also can not target in place completely, key (1) and locking device (2) can not accomplish the unblock state, key (1) can not leave locking device (2).