CN208137709U - A kind of anti-loosening safety lock of train door - Google Patents

Abstract

The utility model discloses a kind of anti-loosening safety locks of train door, it is related to railway traffic technical field, solve in the prior art train during traveling lock core due to vibration and be easy loosen the technical issues of, it includes lock body, lock tongue and lock core, the lock core is located at the lock tongue rear end face, the lock core deviates the center setting of the lock tongue, the end of the lock core is connected with baffle, the rear end face of the baffle is equipped with tapered end, the tapered end is prism-shaped, the tapered end is corresponding to be equipped with key bit, the end of the key bit is equipped with handle, open keyhole is equipped in the middle part of the key bit, the open keyhole is matched with the tapered end size.The structure design of the utility model is reasonable, can complete to avoid the generation of safety accident to the self-locking of lock core after key extraction, be mainly used in railway traffic safety lock field.

Description

A kind of anti-loosening safety lock of train door

Technical field

The utility model relates to railway traffic technical fields, more particularly to a kind of anti-loosening safety of train door Lock.

Background technique

Railway transportation is a kind of land transportation mode, is travelled on two parallel rails with locomotive traction rail vehicle. Traditional approach is that steel wheel is advanced, but the railway transportation of broad sense still includes the side that the non-steel wheel such as magnetic suspension train, cable car, cableway is advanced Formula or rail transport.Rail can provide dead smooth and hard medium by train wheel above with the rolling of the smallest frictional force It is dynamic, so that the people above this is felt more comfortable, and it can also save energy.If being arranged to work as, railway transportation can compare road surface Transport saves five to seventy percent energy when delivering same weight object.The weight of scatter columns vehicle moreover, rail can be averaged, makes the load of train Beijing South Maxpower Technology Co. Ltd's power greatly improves.

But existing locomotive door lock is mainly used for the metal panels such as train, is typically provided triangle in the pedestal of these locksets Keyhole, lock core are connect with lock tongue, by triangle key rotation lock core, open and close door-plate, simple with structure, Feature easy to install and use, production cost is low, is widely used in various kinds of vehicles.But train is on rail when walking, especially It is in the unique region of some geological conditions, and train will appear biggish vibration when walking, and train door is by larger Shock conditions under, it is possible to will appear loosening situation, if car door nearby someone lean on if train high speed advance mistake It is possible to will appear great safety accident in journey.But lock core in above-mentioned locomotive door lock structure is locking, vibrationproof, safe and stable Property it is poor, be easy to cause lock core to rotate since lock core vibrates, so that lock core or lock tongue is detached from door-plate, especially for moving When vehicle, bullet train etc. vibrate biggish oscillatory type mechanical equipment.

So urgent need will solve lock core due to vibration and be easy the technical issues of loosening or opening, train smooth fortune is improved Capable safety.

Utility model content

The purpose of this utility model is that：There is provided one kind can prevent train from loosening during traveling, improve column The anti-loosening safety lock of the train door of vehicle safe operation rate.

The utility model specifically uses following technical scheme to achieve the goals above：

A kind of anti-loosening safety lock of train door, including lock body, lock tongue and lock core, the lock core are located at the lock tongue rear end Face, the lock core

Deviate the center setting of the lock tongue, the end of the lock core is connected with baffle, and the rear end face of the baffle is equipped with Tapered end, the tapered end are prism-shaped, and the tapered end is corresponding to be equipped with key bit, and the end of the key bit is equipped with handle, described Open keyhole is equipped in the middle part of key bit, the open keyhole is matched with the tapered end size；Handle hole, institute are equipped with inside the lock body The outside that lock core extends to handle hole is stated, the baffle and tapered end are located inside handle hole, and the lock core is located at the portion of handle hole It is arranged with card slot, the card slot is correspondingly provided with tight lock part, and the tight lock part is mainly by clamping section, extruded segment, supporting section and sliding Duan Zucheng, the supporting section is vertical with the clamping section, extruded segment and sliding section, and the clamping section is located at the extruded segment The same side of the supporting section, the sliding section are set to the other side away from the clamping section and the extruded segment, the sliding Section is corresponding to be equipped with the first sliding groove, and the sliding section end is fixedly connected with the first spring, and first spring is positioned at described the In one sliding groove, first sliding groove is communicated with the handle hole.

Working principle：When utility model works, lock body is installed on car door, and in car door groove at side surface, is guaranteed Lock tongue can rotate out, while output locked groove in the opposite position of doorframe, and lock tongue can be rotated into locked groove, will Vehicle door lock, and when being inserted into key bit, key bit can squeeze the extruded segment evacuation gap of tight lock part, can make to lock in this way The sliding section in portion moves backward inside first sliding groove, drives tight lock part mobile, and the clamping section of tight lock part is to far from card slot at this time Direction movement, when being clamped section and card slot and not contacting, key bit clamping tight lock part can make rotating motion, when lock tongue rotates to Key bit can be extracted out by handle when in locked groove, tight lock part resets under the action of the first spring at this time, the clamping of tight lock part In section insertion card slot, lock core is locked, so that lock tongue is in the case of a shock, the state of locking is still kept, is not susceptible to loosen.

Further, it is equipped with rotation-limited hole inside the lock body, limited block is equipped with inside the rotation-limited hole, it is described Limited block is fixedly connected with the lock core, and the limited block is located at the baffle top, and the card slot is located at the baffle and institute It states between limited block.Limited block is arranged on lock core makes lock core immovable in the direction perpendicular to limited block, improves dress The stability set.

Further, the outer surface of the key bit is equipped with annular groove, and the inner front side of the handle hole is equipped with second Sliding groove, the internal slide of second sliding groove are connected with sliding shoe, and the inside of the sliding shoe is equipped with wedged hole, the cunning The rear end of motion block is fixedly installed with second spring, and the second spring is located in second sliding groove, before the sliding shoe End face is fixedly connected with locking level, and the locking level is slidably connected to the interior surface of annular groove.When being inserted into key bit, key Key bit can squeeze the evacuation gap on locking level, in this way can be by locking level to the second sliding groove internal slide, while with cunning Motion block compresses second spring, and then key bit enters handle hole bottom, and open keyhole is connected on tapered end, and then second spring will Block reset is slided, such locking level will enter inside annular groove, key bit is locked, then can be carried out closing the door , by handle rotate key bit, can be rotated with lock core, lock tongue can be turned left in this way 180 degree in turn into Enter into locked groove, car door and doorframe are connected, also just completes locking.

Further, second sliding groove is vertically equipped with third sliding groove, is equipped at the center of the third sliding groove Spring groove, the internal slide of the third sliding groove are connected with sliding bar, and the middle part of the sliding bar is equipped with limit plate, the cunning The outer surface set of lever has a third spring, the third spring be located at the limit plate and the spring groove inner bottom surface it Between, the front end of the sliding bar is equipped with catch bar, and the interior surface activity of the catch bar and wedged hole cooperates, the sliding The follower head of bar is equipped with wedge-shaped platform, and the outer surface activity of the wedge shape platform and the lock tongue cooperates.When lock tongue does not have in place, by In the limitation of locking level, key bit can not be extracted, when lock tongue normally locks, wedge-shaped platform can be squeezed thus internally by sliding bar It squeezes, such catch bar will touch wedged hole, then persistently push, sliding shoe can be pushed to the left, thus may be used Locking level to be detached from out of annular groove, can also extract key bit, avoid locking it is not firm, substantially increase safety Property.

Further, the tapered end and open keyhole are triangular structure.Tapered end and the setting of open keyhole triangular structure, make Tapered end cooperate with open keyhole it is even closer, thus in rotational handle, so that being not easy to send out between key bit and tapered end Raw opposite sliding, to improve the practical performance of safety lock.Further, the card slot is symmetricly set on the lock core appearance Face, quantity >=2 of the card slot.The quantity of card slot can be configured according to actual needs so that the clamping section of tight lock part with Card slot can preferably cooperate.

Further, the length of the extruded segment is less than the length of the clamping section.When being inserted into key bit, due to key The size of head is greater than the size of lock core, so key bit can squeeze the extruded segment of tight lock part, thus drive clamping section mobile, so that The clamping section and exact separation of tight lock part, and then can be locked a door with rotation lock tonguing row.

Further, the diameter of the catch bar is less than the diameter of the sliding bar, and the width of the catch bar is described The half of wedged hole minimum widith.It pushes shank diameter to be less than the diameter of sliding bar, allows catch bar inclining along wedged hole Oblique position moves downward, so that sliding shoe is moved along the second sliding groove, so as to so that key bit energy Enough insertion bottoms are cooperated with tapered end.

The beneficial effects of the utility model are as follows：

1, the utility model passes through and tight lock part and the first sliding groove is arranged inside lock body, the structures such as first spring, so that Safety lock tight lock part after key bit extraction can cooperate with the card slot on lock core, to play position-limiting action to lock core, in turn Safety lock is prevented to loosen the generation of event during train is advanced.

Make lock core immovable in the direction perpendicular to limited block 2. limited block is arranged in the utility model on lock core, mentions The high stability of device.

3. the utility model when lock tongue without in place when, due to the limitation of locking level, key bit can not be extracted, when lock tongue just Often when locking, wedge-shaped platform can be squeezed to internally squeeze sliding bar, such catch bar will touch wedged hole, then hold It is continuous to push, sliding shoe can be pushed to the left, locking level can be thus detached from out of annular groove, can also be extracted Key bit, avoid locking it is not firm, substantially increase safety.

4. the utility model passes through the setting of tapered end and open keyhole triangular structure, so that tapered end and open keyhole cooperate more Step up close, thus in rotational handle, is slided so that being less likely to occur between key bit and tapered end is opposite, to improve peace The practical performance locked entirely.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the partial enlargement structural representation of the utility model；

Appended drawing reference：1, box body；2, motor；3, output shaft；4, second bevel gear；5, thrust bearing；6, the first cone tooth Wheel；7, threaded rod；8, upright bar；9, screwed pipe；10, part plate is transported；11, column；12, directive wheel；13, baffle.

Specific embodiment

In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this Utility model is described in further detail.

Embodiment 1

As shown in Figs. 1-2, the utility model provides a kind of anti-loosening safety lock of train door, including lock body 1, lock tongue 3 with Lock core 4, the lock core 4 are located at 3 rear end face of lock tongue, and the lock core 4 deviates the center setting of the lock tongue 3, the lock core 4 End connection.There is baffle 5, the rear end face of the baffle 5 is equipped with tapered end 6, and the tapered end 6 is prism-shaped, and the tapered end 6 is opposite It should be equipped with key bit 7, the end of the key bit 7 is equipped with handle 9, is equipped with open keyhole, the open keyhole in the middle part of the key bit 7 It is matched with 6 size of tapered end；Handle hole 2 is equipped with inside the lock body 1, the lock core 4 extends to the outside of handle hole 2, The baffle 5 and tapered end 6 are located inside handle hole 2, and the part that the lock core 4 is located at handle hole 2 is equipped with card slot 21, the card slot 21 are correspondingly provided with tight lock part 27, and the tight lock part 27 is mainly by 23 groups of section of clamping section 22, extruded segment 24, supporting section 25 and sliding At the supporting section 25 is vertical with the clamping section 22, extruded segment 24 and sliding section 23, the clamping section 22 and the extruding Section 24 is located at the same side of the supporting section 25, and the sliding section 23 is set to away from the clamping section 22 and the extruded segment 24 The other side, the sliding section 23 is corresponding to be equipped with the first sliding groove 8, and 23 end of sliding section is fixedly connected with the first spring 20, first spring 20 is located in first sliding groove 8, and first sliding groove 8 is communicated with the handle hole 2.

Working principle：When utility model works, lock body 1 is installed on car door, and in car door groove at side surface, is guaranteed Lock tongue 3 can rotate out, while output locked groove in the opposite position of doorframe, lock tongue 3 can be rotated into locked groove Interior, by vehicle door lock, and when being inserted into key bit 7, the extruded segment 24 that key bit 7 can squeeze tight lock part 27 avoids gap, in this way The sliding section 23 of tight lock part 27 can be made to move backward inside first sliding groove, drive tight lock part 27 mobile, at this time tight lock part 27 clamping section 22 is moved to the direction far from card slot 21, when being clamped section 22 and card slot 21 does not contact, 7 clamping lock of key bit Tight portion 27 can make rotating motion, and can extract key bit 7 out by handle 9 when lock tongue 3 rotates in locked groove, at this time tight lock part 27 reset under the action of the first spring 20, and the clamping section 22 of tight lock part 27 is inserted into card slot 21, lock core 4 are locked, so that lock tongue 3 In the case of a shock, the state for still keeping locking, is not susceptible to loosen.

Embodiment 2

As shown in Figs. 1-2, the present embodiment is advanced optimized on the basis of embodiment 1, and specific embodiment is as follows：

It is equipped with rotation-limited hole 19 inside the lock body 1, is equipped with limited block 18, the limit inside the rotation-limited hole 19 Position block 18 is fixedly connected with the lock core 4, and the limited block 18 is located at 5 top of baffle, and the card slot 21 is located at the gear Between plate 5 and the limited block 18.On lock core 4 be arranged limited block 18 make lock core 4 the direction perpendicular to limited block 18 not Can be mobile, improve the stability of device.

Embodiment 3

As shown in Figs. 1-2, the present embodiment is advanced optimized on the basis of embodiment 2, and specific embodiment is as follows：

The outer surface of the key bit 7 is equipped with annular groove, and the inner front side of the handle hole 2 is equipped with the second sliding groove 12, the internal slide of second sliding groove 12 is connected with sliding shoe 10, and the inside of the sliding shoe 10 is equipped with wedged hole, described The rear end of sliding shoe 10 is fixedly installed with second spring 11, and the second spring 11 is located in second sliding groove 12, described The end face of sliding shoe 10 is fixedly connected with locking level 13, and the locking level 13 is slidably connected to the interior surface of annular groove.

Second sliding groove 12 is vertically equipped with third sliding groove 14, is equipped with spring at the center of the third sliding groove 14 Slot, the internal slide of the third sliding groove 14 are connected with sliding bar 26, and the middle part of the sliding bar 26 is equipped with limit plate 16, institute The outer surface set for stating sliding bar 26 has third spring 15, and the third spring 15 is located at the limit plate 16 and the spring groove Between inner bottom surface, the front end of the sliding bar 26 is equipped with catch bar 28, the interior surface of the catch bar 28 and wedged hole Activity cooperation, the follower head of the sliding bar 26 are equipped with wedge-shaped platform 17, the outer surface activity of the wedge shape platform 17 and the lock tongue 3 Cooperation.

Working principle：When being inserted into key bit 7, key bit 7 can squeeze the evacuation gap on locking level 13, can incite somebody to action in this way Locking level 13 compresses second spring 11 to 12 internal slide of the second sliding groove, while with sliding shoe 10, and then key bit 7 enters To 2 bottom of handle hole, open keyhole is connected on tapered end 6, and then second spring 11 resets sliding shoe 10, and such locking level 13 is just It can enter inside annular groove, key bit 7 is locked, then can be carried out closing the door, key bit 7 is rotated by handle 9, Can be rotated with lock core 4, lock tongue 3 can turn left and then enters in locked groove in this way by 180 degree, by car door and Doorframe connects, and also just completes locking.When lock tongue 3 does not have in place, due to the limitation of locking level 13, key can not be extracted First 7, when lock tongue 3 normally locks, wedge-shaped platform 17 can be squeezed to internally squeeze sliding bar 26, such catch bar 28 will Wedged hole is touched, is then persistently pushed, sliding shoe 10 can be pushed to the left, it thus can be by locking level 13 from annular It is detached from groove, can also extract key bit 7, it is not firm to avoid locking, substantially increases safety.

Embodiment 4

As shown in Figs. 1-2, the present embodiment is advanced optimized on the basis of embodiment 3, and specific embodiment is as follows：

The tapered end 6 and open keyhole are triangular structure.

The card slot 21 is symmetricly set on 4 outer surface of lock core, quantity >=2 of the card slot 21.

The length of the extruded segment 24 is less than the length of the clamping section 22.

The diameter of the catch bar 28 is less than the diameter of the sliding bar 26, and the width of the catch bar 28 is the wedge shape The half of hole minimum widith.

Working principle：Tapered end 6 and open keyhole triangular structure setting so that tapered end 6 cooperate with open keyhole it is even closer, Thus in rotational handle, so that being less likely to occur to slide relatively between key bit 7 and tapered end 6, to improve safety lock Practical performance.The quantity of card slot 21 can be configured according to actual needs, so that the clamping section 22 and card slot of tight lock part 27 21 can preferably cooperate.When being inserted into key bit 7, since the size of key bit 7 is greater than the size of lock core 4, so key bit 7 The extruded segment 24 of tight lock part 27 can be squeezed, to drive clamping section 22 mobile, so that the clamping section 22 of tight lock part 27 and card slot 21 Separation, and then lock tongue 3 can be rotated and locked a door.28 diameter of catch bar is less than the diameter of sliding bar 26, so that catch bar 28 can To be moved downward along the inclined position of wedged hole, so that sliding shoe 10 is transported along the second sliding groove 12 It is dynamic, so as to so that key bit 7 is inserted into bottom and is cooperated with tapered end 6.

The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model Structure change similarly should be included in the protection scope of the utility model.

Claims (8)

1. a kind of anti-loosening safety lock of train door, it is characterised in that：Including lock body (1), lock tongue (3) and lock core (4), the lock Core (4) is located at the lock tongue (3) rear end face, and the lock core (4) deviates the center setting of the lock tongue (3), the lock core (4) End is connected with baffle (5), and the rear end face of the baffle (5) is equipped with tapered end (6), and the tapered end (6) is prism-shaped, the tapered end (6) corresponding to be equipped with key bit (7), the end of the key bit (7) is equipped with handle (9), is equipped with and opens in the middle part of the key bit (7) Lockhole, the open keyhole are matched with the tapered end (6) size；Handle hole (2) are equipped with inside the lock body (1), the lock core (4) outside of handle hole (2) is extended to, the baffle (5) and tapered end (6) are located at handle hole (2) inside, lock core (4) position Card slot (21) are equipped in the part of handle hole (2), the card slot (21) is correspondingly provided with tight lock part (27), and the tight lock part (27) is main Will by clamping section (22), extruded segment (24), supporting section (25) and sliding section (23) form, the supporting section (25) with the card Connect section (22), extruded segment (24) and sliding section (23) vertically, the clamping section (22) and the extruded segment (24) are located at the branch The same side of section (25) is supportted, sliding section (23) is set to away from the another of clamping section (22) and the extruded segment (24) Side, the sliding section (23) is corresponding to be equipped with the first sliding groove (8), and sliding section (23) end is fixedly connected with the first spring (20), first spring (20) is located in first sliding groove (8), first sliding groove (8) and the handle hole (2) It communicates.

2. the anti-loosening safety lock of a kind of train door according to claim 1, it is characterised in that：The lock body (1) is internal Equipped with rotation-limited hole (19), be equipped with limited block (18) inside the rotation-limited hole (19), the limited block (18) with it is described Lock core (4) is fixedly connected, and the limited block (18) is located at the baffle (5) top, and the card slot (21) is located at the baffle (5) Between the limited block (18).

3. the anti-loosening safety lock of a kind of train door according to claim 1, it is characterised in that：The key bit (7) Outer surface is equipped with annular groove, and the inner front side of the handle hole (2) is equipped with the second sliding groove (12), second sliding groove (12) internal slide is connected with sliding shoe (10), and the inside of the sliding shoe (10) is equipped with wedged hole, the sliding shoe (10) Rear end be fixedly installed with second spring (11), the second spring (11) is located in second sliding groove (12), the cunning The front end face of motion block (10) is fixedly connected with locking level (13), and the locking level (13) is slidably connected to the inside table of annular groove Face.

4. the anti-loosening safety lock of a kind of train door according to claim 3, it is characterised in that：Second sliding groove (12) third sliding groove (14) vertically are equipped with, spring groove, the third sliding is equipped at the center of the third sliding groove (14) The internal slide of slot (14) is connected with sliding bar (26), and the middle part of the sliding bar (26) is equipped with limit plate (16), the sliding The outer surface set of bar (26) has third spring (15), and the third spring (15) is located at the limit plate (16) and the spring Between slot inner bottom surface, the front end of the sliding bar (26) is equipped with catch bar (28), the catch bar (28) and wedged hole Interior surface activity cooperation, the follower head of the sliding bar (26) are equipped with wedge-shaped platform (17), the wedge shape platform (17) and the lock The outer surface activity of tongue (3) cooperates.

5. the anti-loosening safety lock of a kind of train door according to claim 1, it is characterised in that：It the tapered end (6) and opens Lockhole is triangular structure.

6. the anti-loosening safety lock of a kind of train door according to claim 1, it is characterised in that：The card slot (21) is symmetrical It is arranged in the lock core (4) outer surface, quantity >=2 of the card slot (21).

7. the anti-loosening safety lock of a kind of train door according to claim 1, it is characterised in that：The extruded segment (24) Length is less than the length of clamping section (22).

8. the anti-loosening safety lock of a kind of train door according to claim 4, it is characterised in that：The catch bar (28) Diameter is less than the diameter of the sliding bar (26), and the width of the catch bar (28) is the half of the wedged hole minimum widith.