CN211258102U - Unlocking device for forcibly unlocking cab door lock - Google Patents

Abstract

The utility model relates to an unlocking means for forcing open cab lock, including the handle to and the rigid coupling just becomes to be hooked latch hook on the handle, the thickness of opening the latch hook is less than the width of crack, and the coupler body opening of opening the latch hook is greater than the width of spring bolt. The utility model is convenient for rapidly and forcibly opening the train cab door safely through the arrangement of the handle and the unlocking hook; through the arrangement of the long rod, the elastic sheet, the supporting shaft and the like, the door lock is more labor-saving in the opening process; the arrangement of the conical bulge is convenient for propping the control support shaft to the door frame or the door at the time and the force; through the setting of spring, save the manual work and bring the operation of initial position back to with the stock.

Description

Unlocking device for forcibly unlocking cab door lock

Technical Field

The utility model relates to a lock field especially involves the technical field who forces to open the lock, specifically indicates an unlocking means for forcing to open cab lock.

Background

In China, railways are important infrastructures of the nation, the aorta of national economy and popular vehicles, and are in a backbone status in a comprehensive transportation system, the traveling time of people is greatly reduced due to the operation of high-speed rail vehicles, and on locomotives, especially high-speed rail vehicles with the vehicle types of CR400AF and CR400AF-A, doors of a cab are locked through single lock tongues, the cab is opened for a long time by using a key for many times, so that the key is rapidly worn, and the doors of the cab are slowly opened or cannot be opened due to excessive wear, so that the condition that the doors of the cab cannot be opened is caused, and how to rapidly and safely open the doors of the cab is a difficult problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide an unlocking means for forcing open cab lock, the cab lock is opened to quick safety.

The utility model relates to a through following technical scheme realization, a unlocking means for forcing open cab lock, including the handle to and the rigid coupling just becomes to be hooked the latch hook of opening on the handle, the thickness of opening the latch hook is less than the width of crack, and the coupler body opening of opening the latch hook is greater than the width of spring bolt.

The utility model discloses when using, the handle is held to the hand, make the hook section of opening the latch hook down, will open the latch hook and insert from the crack of spring bolt top, handheld handle drives the hook of unblanking downstream, make the hook of unblanking touch the top surface of spring bolt, then handheld handle is to the reverse pulling of male, the hook section of driving out the latch hook touches on the cambered surface of spring bolt, continue reverse pulling handle, make to open the latch hook and slide along the cambered surface of spring bolt, at the slip in-process, the spring bolt receives the effect of the power of keeping away from the door frame, make the spring bolt break away from the door frame gradually, it will thoroughly keep apart the spring bolt and door frame to open the latch hook at last, and remove the handle, make the spring bolt remove to the direction of door, squeeze the door in with the.

As an optimization, a communicated cavity is formed in the handle and the unlocking hook, a through hole communicated with the cavity is formed in the unlocking hook between the hook body opening and the handle, the through holes at two sides are close to the hole wall of the handle, two elastic sheets positioned at two sides of the cavity are arranged, two coaxial support shafts are fixedly arranged on the outer sides of the elastic sheets, and the outer end faces of the support shafts are flush with the outer end faces of the unlocking hook;

a long rod is arranged in the cavity of the handle in a penetrating mode, and the diameter of the long rod is larger than the distance between the two support shafts.

This optimization scheme is when using, when the hook section of opening the latch hook touches the cambered surface of spring bolt on, promote the stock and insert between two shell fragments, make two supporting shaft tops to door frame and door on, then use two back shafts as the axis of rotation this moment, promote the handle upwards rotatory, thereby it is rotatory downwards to drive the latch hook of opening, at rotatory in-process, make the spring bolt break away from the door frame gradually, open the latch hook at last and will thoroughly keep apart the spring bolt and door frame, and remove the handle, make the spring bolt remove to the direction of door, finally crowd the door with the spring bolt, stimulate the door handle this moment, be about to the door and open.

According to the optimized scheme, a rotating shaft is provided for the handle and the unlocking hook through the arrangement of the long rod, the elastic sheet, the supporting shaft and the like, and the linear pulling of the unlocking hook is replaced by rotating, so that the door lock is more labor-saving in the unlocking process; and the unlocking hook is rotated, so that the situation that the unlocking hook is pulled too violently to be pulled out of the door gap instantly to cause unlocking failure is avoided.

Preferably, one end of the long rod inserted into the two elastic pieces is a conical bulge, and the end with the large diameter of the bulge is connected with the long rod. The optimized scheme has the advantages that the conical arrangement is adopted, so that the long rod can be guided when being inserted; and meanwhile, the support shaft slowly moves towards the door frame or the door due to the conical arrangement, so that the opportunity and force for jacking the control support shaft onto the door frame or the door are facilitated, and the damage caused by the action of force on the door frame or the door or the support shaft or the elastic sheet due to overlarge force is avoided.

As optimization, the long rod is further provided with a limiting block positioned on the outer side of the handle, and the size of the limiting block is larger than that of a penetrating hole of the long rod penetrating into the handle;

in the direction of the long rod movement, the distance between the limiting block and the handle is a, the distance between one end, inserted into the elastic piece, of the long rod and the hole wall opposite to the hole wall provided with the elastic piece is b, and a = b. This optimization scheme passes through the setting of stopper, when preventing that the stock from inserting, and is used hard excessively, and the stock inserts fenestrate one end and can directly push up to on the latch hook of opening, and the reaction is on people's hand to adversary causes the damage.

Preferably, the surface of the limiting block, which is contacted with the handle, is in an arc shape matched with the arc surface of the handle. The shape of the limiting block is limited by the arrangement of the preferred scheme, so that the phenomenon that the handle is damaged due to the fact that the handle is touched by the convex points or edges for a long time in the long-term use process when the limiting block is in a shape with more convex points such as a square shape and the like is avoided; meanwhile, due to the arc-shaped arrangement, when the long rod is limited to be inserted, the contact area between the long rod and the handle is larger, and the effect of limiting the insertion of the long rod is better.

Preferably, a spring with the extending direction the same as the penetrating direction of the long rod is further arranged in the cavity of the handle, and one end, far away from the handle, of the spring is connected with the long rod. This optimization scheme's setting is convenient for open the back at the lock, and the elasticity through the spring drives the stock and returns initial position to make the stock not extrude the back shaft, thereby will open the latch hook and take out from the crack, save the manual work and bring back initial position's operation with the stock.

Preferably, the sides of the handle are arcuate. This preferred scheme is through the setting of arc, increases the frictional force between handle and the hand to make the people when the operation handle, more laborsaving.

The utility model has the advantages that: the arrangement of the handle and the unlocking hook facilitates the rapid forced safe opening of the train cab door; through the arrangement of the long rod, the elastic sheet, the supporting shaft and the like, the door lock is more labor-saving in the opening process; the arrangement of the conical bulge is convenient for propping the control support shaft to the door frame or the door at the time and the force; through the setting of spring, save the manual work and bring the operation of initial position back to with the stock.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a schematic view at B of FIG. 2;

fig. 4 is a top view of the present invention;

FIG. 5 is a schematic view of the present invention in use;

shown in the figure:

1. the unlocking hook comprises an unlocking hook body, 2, a handle, 3, an elastic sheet, 4, a supporting shaft, 5, a long rod, 6 and a limiting block.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to the attached drawings 1-5, the utility model relates to an unlocking device for forcing open driver's cabin lock, including handle 2 to and the rigid coupling just becomes to be hooked hook 1 that unblanks on handle 2, the side of handle 2 is the arc, the thickness of unblanking hook 1 is less than the width of crack, and the opening of opening latch hook 1 formation is greater than the width of spring bolt, handle 2 and the interior cavity that has seted up the intercommunication of unblanking hook 1 between handle 2, the square perforation with the cavity intercommunication is seted up to unblanking hook 1 between opening and the handle, and the perforation of both sides is close to on the pore wall of handle, is equipped with two shell fragments 3 that are located the cavity both sides, the shell fragment 3 outside has set firmly two coaxial back shafts 4, the outer terminal surface of back shaft 4 with open the outer terminal surface parallel and level of.

Wear to be equipped with stock 5 in the 2 cavitys of handle, the diameter of stock 5 is greater than the distance between two support shafts, stock 5 inserts between two shell fragment 3 and supports 4 tops door frame or door locks on, stock 5 inserts the one end of two shell fragment 3 and is conical arch, the one end that the protruding diameter is big is connected with stock 5, still be equipped with the stopper 6 that is located the 2 outsides of handle on stock 5, stopper 6 and the one side of 2 contacts of handle be with the arc of 2 cambered surface adaptations of handle.

The size of the limiting block is larger than that of the through hole of the handle through which the long rod penetrates; in the direction along stock motion, distance between stopper and the handle is a, and four pore walls are formed on opening the latch hook to square perforation, and the one end that the stock inserted the shell fragment is to the distance between the relative pore wall of pore wall with being equipped with the shell fragment be b, and a = b, still be equipped with extending direction and stock 5 in the 2 cavitys of handle and penetrate the spring that the direction is the same, the one end that handle 2 was kept away from to the spring is connected with stock 5.

When the utility model is used, the handle 2 is held by hand, the hook section of the unlocking hook 1 faces downwards, the unlocking hook 1 is inserted from the door gap above the lock tongue, the handheld handle 2 drives the unlocking hook 1 to move downwards, the unlocking hook 1 touches the top surface of the lock tongue, then the handheld handle 2 is pulled reversely to the insertion, the hook section of the unlocking hook 1 is driven to touch the arc surface of the lock tongue, the push long rod 5 is inserted between the two elastic pieces 3, the two support shafts 4 are pushed to the door frame and the door, at the moment, the handle and the unlocking hook use the two support shafts 4 as rotating shafts, the push handle rotates upwards, thereby driving the unlocking hook 1 to rotate downwards, in the rotating process, the unlocking hook 1 is extruded to gradually separate the lock tongue from the door frame, finally, the lock tongue is completely isolated from the door frame by the unlocking hook 1, the handle is moved, the lock tongue moves towards the door direction, and finally the lock tongue is extruded into the door, at this point, the door handle is pulled, i.e., the door is opened.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides an unlocking means for forcing open cab lock which characterized in that: the novel door lock comprises a handle (2) and a hook-shaped unlocking hook (1) fixedly connected to the handle (2), wherein the thickness of the unlocking hook (1) is smaller than the width of a door slot, and the hook body opening of the unlocking hook (1) is larger than the width of a lock tongue.

2. The unlocking device for forcibly unlocking the cab door lock according to claim 1, wherein: a communicated cavity is formed in the handle (2) and the unlocking hook (1), a through hole communicated with the cavity is formed in the unlocking hook (1) between the hook body opening and the handle (2), two elastic sheets (3) positioned at two sides of the cavity are arranged on the hole wall of the through hole at two sides close to the handle, two coaxial support shafts (4) are fixedly arranged on the outer sides of the elastic sheets (3), and the outer end faces of the support shafts (4) are flush with the outer end faces of the unlocking hook (1);

a long rod (5) is arranged in the cavity of the handle (2) in a penetrating mode, and the diameter of the long rod (5) is larger than the distance between the two support shafts.

3. The unlocking device for forcibly unlocking the cab door lock according to claim 2, wherein: one end of the long rod (5) inserted into the two elastic sheets (3) is a conical bulge, and the end with the large diameter of the bulge is connected with the long rod (5).

4. The unlocking device for forcibly unlocking the cab door lock according to claim 2, wherein: the long rod (5) is also provided with a limiting block (6) positioned on the outer side of the handle (2), and the size of the limiting block is larger than that of a penetrating hole of the long rod penetrating into the handle;

in the direction of the long rod movement, the distance between the limiting block and the handle is a, the distance between one end, inserted into the elastic piece, of the long rod and the hole wall opposite to the hole wall provided with the elastic piece is b, and a = b.

5. The unlocking device for forcibly unlocking the cab door lock according to claim 4, wherein: the surface of the limiting block (6) contacting with the handle (2) is arc-shaped and matched with the arc surface of the handle (2).

6. The unlocking device for forcibly unlocking the cab door lock according to claim 2, wherein: still be equipped with the extending direction and the same spring of stock (5) penetrating direction in handle (2) cavity, the one end that handle (2) were kept away from to the spring is connected with stock (5).

7. The unlocking device for forcibly unlocking the cab door lock according to claim 1, wherein: the side surface of the handle (2) is arc-shaped.

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