CN103696640A - Latch hook automatic locking mechanism for railway vehicle sliding door - Google Patents

Latch hook automatic locking mechanism for railway vehicle sliding door Download PDF

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Publication number
CN103696640A
CN103696640A CN201310716922.8A CN201310716922A CN103696640A CN 103696640 A CN103696640 A CN 103696640A CN 201310716922 A CN201310716922 A CN 201310716922A CN 103696640 A CN103696640 A CN 103696640A
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China
Prior art keywords
latch hook
sliding door
vehicle sliding
rail vehicle
hook
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CN201310716922.8A
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Chinese (zh)
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CN103696640B (en
Inventor
金建成
廖有湘
陈保刚
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南京康尼机电股份有限公司
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Publication of CN103696640A publication Critical patent/CN103696640A/en
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Abstract

The invention discloses a latch hook automatic locking mechanism for a railway vehicle sliding door. The latch hook automatic locking mechanism for the railway vehicle sliding door comprises a latch lock assembly, a rotary nut assembly, a drive lead screw, a cam and a hinge pin, wherein the drive lead screw comprises a spiral groove part and a polished rod part, the rotary nut assembly sleeves on the spiral groove part of the drive lead screw, the cam is fixed on the polished rod part of the drive lead screw, the latch hook assembly is connected with the front end of the rotary nut assembly by a transition plate in parallel with the drive lead screw, the latch look assembly is welded with the hinge pin, the top of the hinge pin and the cam fit together, the latch hook assembly comprises a latch hook body and a reset spring, the reset spring is located at the rear end of the latch hook body and connects the latch hook body with the transition plate, the front end of the latch hook body is provided with a hook slot, and the hook slot is used for clamping a fixing pole on the railway vehicle sliding door. The latch hook automatic locking mechanism provided by the invention is safe and reliable, and has the advantages of simple structure, safety and reliability, and being simple to assembly, saving in assembling resource, lower in cost, high in economic benefit, and good in application prospect.

Description

A kind of latch hook automatic locking mechanism for rail vehicle sliding door
Technical field
The present invention relates to sliding door door lock technical field, be specifically related to a kind of latch hook automatic locking mechanism for rail vehicle sliding door.
Background technology
Fast development along with city size, the trip that track traffic can be convenient for people to, thereby be widely used, rail vehicle sliding door needs frequent folding, for passenger's, under, in track Vehicle Driving Cycle process, need to rail vehicle sliding door is locked, to keep passenger inside the vehicle's safety, at present, there are two kinds of locking modes in rail vehicle sliding door on the market, be respectively terminal locking mode and omnidistance mode, the locking device of realizing two kinds of above-mentioned locking modes is respectively LS lock and global locking device, LS lock and global locking device complex structure, amount of parts is many, and require higher to the precision of component, thereby cost of manufacture is high, and, assembling is complicated, maintenance trouble.
Summary of the invention
Technical problem solved by the invention is to overcome the existing lock of the LS for rail vehicle sliding door locking and global locking device, complex structure, and amount of parts is many, requires the precision of component higher, and cost is high, and assembling is complicated, the problem of maintenance trouble.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of latch hook automatic locking mechanism for rail vehicle sliding door, it is characterized in that: comprise lock hook assembly, rotating nut assembly, drive screw mandrel, cam and bearing pin, described driving screw mandrel comprises spiral slot part and polished rod portion, described rotating nut assembly is socketed on the spiral slot part that drives screw mandrel, described cam is fixed in the polished rod portion that drives screw mandrel, described lock hook assembly drives the rebound of screw mandrel to be connected to the front end of rotating nut assembly by being parallel to, on described lock hook assembly, be welded with bearing pin, top and the cam of described bearing pin fit, described lock hook assembly comprises latch hook body and back-moving spring, described back-moving spring is positioned at the rear end of latch hook body, and latch hook body is connected with rebound, the front end of described latch hook body is provided with hook groove, described hook groove is for the fixed bar in clamping rail vehicle sliding door.
Aforesaid a kind of latch hook automatic locking mechanism for rail vehicle sliding door, it is characterized in that: described spiral slot part comprises the first helicla flute, described the first spiral fluted one side milling goes out to have the second helicla flute, and the normal direction move distance that described the second spiral fluted normal direction length rotates a circle on spiral slot part with rotating nut assembly is identical; The described second spiral fluted degree of depth is parallel with the first spiral fluted bottom; The second helicla flute milling out makes to drive screw mandrel to be provided with an idle running angle; Screw thread and the first helicla flute in described rotating nut assembly match.
Aforesaid a kind of latch hook automatic locking mechanism for rail vehicle sliding door, it is characterized in that: the helical pitch of described spiral slot part is 64mm, the first spiral fluted lead angle is 45.52 °, and the idle running angle of described driving screw mandrel is 30 °, and described the second spiral fluted width is 5.24mm.
Aforesaid a kind of latch hook automatic locking mechanism for rail vehicle sliding door, is characterized in that: described the second helicla flute and the first helicla flute contact position are rounding off.
Aforesaid a kind of latch hook automatic locking mechanism for rail vehicle sliding door, it is characterized in that: described cam comprises concave surface portion and convex surface part, described concave surface portion and convex surface part are semi-circular shape, during rail vehicle sliding door locking, concave surface portion props up bearing pin, and the fixed bar in rail vehicle sliding door is fastened on the hook groove of latch hook body front end; When rail vehicle sliding door is opened, cam is according to the idle running angle rotation that drives screw mandrel, and convex surface part promotes bearing pin, the rotation of back-moving spring band moveable lock hook body, the hook groove of the fixed bar release lock coupler body front end in rail vehicle sliding door.
The invention has the beneficial effects as follows: the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention, reach after the object of closing the door, sliding door can not be opened; When removing action, execution can easily open fast, and safe and reliable, and there is following advantage,
(1) simple in structure, safe and reliable;
(2) assembling is simple, and installation at the scene, saves a large amount of Assembling resources;
(3) element precision is less demanding, and number of spare parts is few, greatly reduces costs, and economic benefit is very high, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is that the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention closes structural representation behind the door.
Fig. 2 is that the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention closes lateral view behind the door.
Fig. 3 is the structural representation after the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention opens the door.
Fig. 4 is the lateral view after the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention opens the door.
Fig. 5 is the schematic diagram of the cam after the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention opens the door.
Fig. 6 is the schematic diagram that the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention closes cam behind the door.
Fig. 7 is the structural representation of driving screw mandrel of the present invention.
Reference numeral implication is as follows:
1: fixed bar; 2: lock hook assembly; 201: latch hook body; 202: hook groove; 203: back-moving spring; 3: bearing pin; 4: rebound; 5: rotating nut assembly; 6: drive screw mandrel; 601: spiral slot part; 602: polished rod portion; 603: the first helicla flutes; 604: the second helicla flutes; 7: cam; 701: concave surface portion; 702: convex surface part.
The specific embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
Latch hook automatic locking mechanism for rail vehicle sliding door of the present invention, reaches after the object of closing the door, and sliding door can not be opened, when removing action, execution can easily open fast, safe and reliable, and component are few, cost of production is low, as shown in Figures 1 to 6, comprise lock hook assembly 2, rotating nut assembly 5, drive screw mandrel 6, cam 7 and bearing pin 3, drive screw mandrel 6 to comprise spiral slot part 601 and polished rod portion 602, rotating nut assembly 5 is socketed on the spiral slot part 601 that drives screw mandrel 6, cam 7 is fixed in the polished rod portion 602 that drives screw mandrel 6, lock hook assembly 2 drives the rebound 4 of screw mandrel 6 to be connected to the front end of rotating nut assembly 5 by being parallel to, on lock hook assembly 2, be welded with bearing pin 3, the top of bearing pin 3 and cam 7 fit.
Described lock hook assembly 2 comprises latch hook body 201 and back-moving spring 203, back-moving spring 203 is positioned at the rear end of latch hook body 201, and latch hook body 201 is connected with rebound 4, the front end of latch hook body 201 is provided with hook groove 202, and hook groove 202 is for the fixed bar 1 in clamping rail vehicle sliding door;
As shown in Figure 7, described spiral slot part 601 comprises the first helicla flute 603, the normal direction move distance that one side milling of the first helicla flute 603 goes out to have the normal direction length of the second helicla flute 604, the second helicla flutes 604 to rotate a circle on spiral slot part 601 with rotating nut assembly 5 is identical; The degree of depth of the second helicla flute 604 is parallel with the bottom of the first helicla flute 603; The second helicla flute 604 milling out makes to drive screw mandrel 6 to be provided with an idle running angle; Screw thread in rotating nut assembly 5 and the first helicla flute 603 match; The helical pitch of spiral slot part 601 is 64mm, and the lead angle of the first helicla flute 603 is 45.52 °, and driving the idle running angle of screw mandrel 6 is 30 °, and the width of the second helicla flute 604 is 5.24mm; The second helicla flute 604 and the first helicla flute 603 contact positions are rounding off, the rotation of convenient driving screw mandrel 6 when idle running angle, and rotating nut assembly 5 stops operating, and band moving cam 7 continues rotation;
Described cam 7 comprises concave surface portion 701 and convex surface part 702, and concave surface portion 701 and convex surface part 702 are semi-circular shape, and during rail vehicle sliding door locking, concave surface portion 701 props up bearing pin 3, and the fixed bar 2 in rail vehicle sliding door is fastened on the hook groove 202 of latch hook body 201 front ends; When rail vehicle sliding door is opened, cam 7 is according to the idle running angle rotation that drives screw mandrel 6, and convex surface part 702 promotes bearing pin 3, back-moving spring 203 band moveable lock hook body 201 rotations, the hook groove 202 of fixed bar 2 release lock coupler body 201 front ends in rail vehicle sliding door.
Lower mask body is introduced the course of work of the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention,
(1) action of closing the door of rail vehicle sliding door, , drive screw mandrel 6 to drive 5 motions of spin nut assembly, when approaching door pass puts position in place, by rebound 4, be arranged on the hook groove 202 of latch hook body 201 front ends on spin nut assembly 5, fixed bar 1 is encountered on the inclined-plane of latch hook body 201, continue motion, fixed bar 1 slides along inclined-plane, by lever principle and under back-moving spring 203 effects, after Men Guan puts in place, hook groove 202 catches on fixed bar 1 and realizes locking, now, drive screw mandrel 6 to stop operating, be that spin nut assembly 5 halts, door is shut, because the back-moving spring 203 on latch hook body 201 has certain pretightning force, after door is shut, lock hook assembly 2 can not thrown off automatically, safe and reliable, as shown in Figure 5, bearing pin 3 props up the concave surface portion 701 of cam 7, realize locking, if Fig. 1 and Fig. 2 are that rail vehicle sliding door is closed the structure chart of automatic locking mechanism behind the door,
(2) action of opening the door of rail vehicle sliding door, now, the hook groove 202 of latch hook body 201 front ends catches on fixed bar 1, the axial non-displacement of spin nut assembly 5, the second helicla flute 604 that the width that drives milling place on screw mandrel 6 is 5.24mm, can make to drive screw mandrel 6 to have the rotation idle running angle of 30 °, be fixed on the cam 7 driving on screw mandrel 6 and keep synchronizeing rotation with driving screw mandrel 6, utilize the idle running angle of 30 ° to back down the bearing pin 3 being fixed on lock hook assembly 2, utilize lever principle to make the hook groove 202 of latch hook body 201 front ends depart from fixed bar 1, reach release effect, release rear drive screw mandrel 6 is rotated further, making spin nut assembly 5 is that rounding off is got back in the first helicla flute 603 by the second helicla flute 604 and the first helicla flute 603 contact positions on driving screw mandrel 6, realize normal switch gate action, as shown in Figure 6, the convex surface part 702 that props up cam 7 promotes bearing pin 3 and rotates, realization is unblanked, if Fig. 3 and Fig. 4 are the structure chart of rail vehicle sliding door automatic locking mechanism while opening.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (5)

1. the latch hook automatic locking mechanism for rail vehicle sliding door, it is characterized in that: comprise lock hook assembly (2), rotating nut assembly (5), drive screw mandrel (6), cam (7) and bearing pin (3), described driving screw mandrel (6) comprises spiral slot part (601) and polished rod portion (602), described rotating nut assembly (5) is socketed on the spiral slot part (601) that drives screw mandrel (6), described cam (7) is fixed in the polished rod portion (602) that drives screw mandrel (6), described lock hook assembly (2) drives the rebound (4) of screw mandrel (6) to be connected to the front end of rotating nut assembly (5) by being parallel to, on described lock hook assembly (2), be welded with bearing pin (3), the top of described bearing pin (3) and cam (7) fit, described lock hook assembly (2) comprises latch hook body (201) and back-moving spring (203), described back-moving spring (203) is positioned at the rear end of latch hook body (201), and latch hook body (201) is connected with rebound (4), the front end of described latch hook body (201) is provided with hook groove (202), described hook groove (202) is for the fixed bar (1) in clamping rail vehicle sliding door.
2. a kind of latch hook automatic locking mechanism for rail vehicle sliding door according to claim 1, it is characterized in that: described spiral slot part (601) comprises the first helicla flute (603), one side milling of described the first helicla flute (603) goes out to have the second helicla flute (604), and the normal direction length of described the second helicla flute (604) is identical with the normal direction move distance that rotating nut assembly (5) rotates a circle on spiral slot part (601); The degree of depth of described the second helicla flute (604) is parallel with the bottom of the first helicla flute (603); The second helicla flute (604) milling out makes to drive screw mandrel (6) to be provided with an idle running angle; Screw thread and the first helicla flute (603) in described rotating nut assembly (5) match.
3. a kind of latch hook automatic locking mechanism for rail vehicle sliding door according to claim 2, it is characterized in that: the helical pitch of described spiral slot part (601) is 64mm, the lead angle of the first helicla flute (603) is 45.52 °, the idle running angle of described driving screw mandrel (6) is 30 °, and the width of described the second helicla flute (604) is 5.24mm.
4. a kind of latch hook automatic locking mechanism for rail vehicle sliding door according to claim 2, is characterized in that: described the second helicla flute (604) is rounding off with the first helicla flute (603) contact position.
5. a kind of latch hook automatic locking mechanism for rail vehicle sliding door according to claim 1, it is characterized in that: described cam (7) comprises concave surface portion (701) and convex surface part (702), described concave surface portion (701) and convex surface part (702) are semi-circular shape, during rail vehicle sliding door locking, concave surface portion (701) props up bearing pin (3), and the fixed bar in rail vehicle sliding door (2) is fastened on the hook groove (202) of latch hook body (201) front end; When rail vehicle sliding door is opened, cam (7) is according to the idle running angle rotation that drives screw mandrel (6), convex surface part (702) promotes bearing pin (3), back-moving spring (203) band moveable lock hook body (201) rotation, the hook groove (202) of the fixed bar in rail vehicle sliding door (1) release lock coupler body (201) front end.
CN201310716922.8A 2013-12-23 2013-12-23 A kind of latch hook automatic locking mechanism for rail vehicle sliding door Active CN103696640B (en)

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Application Number Priority Date Filing Date Title
CN201310716922.8A CN103696640B (en) 2013-12-23 2013-12-23 A kind of latch hook automatic locking mechanism for rail vehicle sliding door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310716922.8A CN103696640B (en) 2013-12-23 2013-12-23 A kind of latch hook automatic locking mechanism for rail vehicle sliding door

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CN103696640B CN103696640B (en) 2015-11-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695780A (en) * 2014-10-15 2015-06-10 马忠国 Quick locking mechanism
CN105507679A (en) * 2016-01-22 2016-04-20 南京康尼机电股份有限公司 Spiral drive control system
CN107010195A (en) * 2015-09-25 2017-08-04 空中客车简化股份公司 Lock the device of the moving element of such as aircraft door and configure the aircraft of described device
CN109854105A (en) * 2019-04-11 2019-06-07 谭力 A kind of bottom locking device for vehicle sliding plug door

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2570128Y (en) * 2002-09-28 2003-09-03 南京康尼机电新技术有限公司 Electric stopper sliding door for rail vehicle
CN2576886Y (en) * 2002-09-28 2003-10-01 南京康尼机电新技术有限公司 Electric movingdoor for track vehicle
CN2739320Y (en) * 2004-10-29 2005-11-09 方大集团股份有限公司 Automatic door locking device
US20110155537A1 (en) * 2008-09-26 2011-06-30 Ojmar, S.A. Symmetrical lock which can be operated by means of two coins
CN203669555U (en) * 2013-12-23 2014-06-25 南京康尼机电股份有限公司 Latch hook automatic locking mechanism for railway vehicle sliding doors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2570128Y (en) * 2002-09-28 2003-09-03 南京康尼机电新技术有限公司 Electric stopper sliding door for rail vehicle
CN2576886Y (en) * 2002-09-28 2003-10-01 南京康尼机电新技术有限公司 Electric movingdoor for track vehicle
CN2739320Y (en) * 2004-10-29 2005-11-09 方大集团股份有限公司 Automatic door locking device
US20110155537A1 (en) * 2008-09-26 2011-06-30 Ojmar, S.A. Symmetrical lock which can be operated by means of two coins
CN203669555U (en) * 2013-12-23 2014-06-25 南京康尼机电股份有限公司 Latch hook automatic locking mechanism for railway vehicle sliding doors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695780A (en) * 2014-10-15 2015-06-10 马忠国 Quick locking mechanism
CN107010195A (en) * 2015-09-25 2017-08-04 空中客车简化股份公司 Lock the device of the moving element of such as aircraft door and configure the aircraft of described device
CN105507679A (en) * 2016-01-22 2016-04-20 南京康尼机电股份有限公司 Spiral drive control system
CN105507679B (en) * 2016-01-22 2017-06-16 南京康尼机电股份有限公司 Screw drives control system
CN109854105A (en) * 2019-04-11 2019-06-07 谭力 A kind of bottom locking device for vehicle sliding plug door

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