CN103696640B - A kind of latch hook automatic locking mechanism for rail vehicle sliding door - Google Patents

A kind of latch hook automatic locking mechanism for rail vehicle sliding door Download PDF

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Publication number
CN103696640B
CN103696640B CN201310716922.8A CN201310716922A CN103696640B CN 103696640 B CN103696640 B CN 103696640B CN 201310716922 A CN201310716922 A CN 201310716922A CN 103696640 B CN103696640 B CN 103696640B
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CN
China
Prior art keywords
hook
sliding door
latch hook
rail vehicle
screw mandrel
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Application number
CN201310716922.8A
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Chinese (zh)
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CN103696640A (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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Priority to CN201310716922.8A priority Critical patent/CN103696640B/en
Publication of CN103696640A publication Critical patent/CN103696640A/en
Application granted granted Critical
Publication of CN103696640B publication Critical patent/CN103696640B/en

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Abstract

The invention discloses a kind of latch hook automatic locking mechanism for rail vehicle sliding door, comprise lock hook assembly, rotating nut assembly, drive screw mandrel, cam and bearing pin, screw mandrel is driven to comprise helical groove portion and polished rod portion, rotating nut assembly is socketed on the helical groove portion of driving screw mandrel, cam is fixed in the polished rod portion of driving screw mandrel, lock hook assembly is by being parallel to the front end driving the rebound of screw mandrel to be connected to rotating nut assembly, lock hook assembly is welded with bearing pin, top and the cam of bearing pin fit, 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 latch hook body is provided with hook groove, the fixed bar of hook groove in clamping rail vehicle sliding door.Latch hook automatic locking mechanism of the present invention, safe and reliable, and there is following advantage, structure is simple, safe and reliable, and assembling is simple, and save Assembling resource, reduce costs, economic benefit is very high, has a good 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
Along with the fast development of city size, the trip that track traffic can be convenient for people to, thus be widely used, rail vehicle sliding door needs frequent folding, for passenger's, under, in track vehicle travel process, need locked for rail vehicle sliding door, to keep the safety of passenger inside the vehicle, 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 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, thus cost of manufacture is high, and, assembling is complicated, maintenance trouble.
Summary of the invention
Technical problem solved by the invention overcomes the existing LS for rail vehicle sliding door locking to lock and global locking device, and complex structure, amount of parts is many, and require that the precision of component is higher, cost is high, and assembling is complicated, keeps in repair troublesome problem.
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 helical groove portion and polished rod portion, described rotating nut assembly is socketed on the helical groove portion of driving screw mandrel, described cam is fixed in the polished rod portion of driving screw mandrel, described lock hook assembly is by being parallel to the front end driving the rebound of screw mandrel to be connected to rotating nut assembly, described lock hook assembly is 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, the fixed bar of described hook groove 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 helical groove portion comprises the first helicla flute, described first spiral fluted side has milled out the second helicla flute, and described second spiral fluted normal direction length is identical with the normal direction move distance that rotating nut assembly rotates a circle on helical groove portion; The described second spiral fluted degree of depth is parallel with bottom the first spiral fluted; The second helicla flute milled out makes driving screw mandrel be provided with an idle running angle; Screw thread in described rotating nut assembly and the first helicla flute 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 helical groove portion is 64mm, first spiral fluted lead angle is 45.52 °, and the idle running angle of described driving screw mandrel is 30 °, and described 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 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 part and convex surface part, described concave part and convex surface part are semi-circular shape, during rail vehicle sliding door locking, concave part 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 rotates according to driving the idle running angle of screw mandrel, and convex surface part promotes bearing pin, and back-moving spring band moveable lock hook body rotates, and the fixed bar in rail vehicle sliding door departs from the hook groove of latch hook body front end.
The invention has the beneficial effects as follows: the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention, after reaching the object of closing the door, sliding door can not be opened; Can easily open fast when execution moves door opening action, safe and reliable, and there is following advantage,
(1) structure is simple, safe and reliable;
(2) assembling is simple, can installation at the scene, saves a large amount of Assembling resource;
(3) element precision is less demanding, and number of parts is few, greatly reduces costs, and economic benefit is very high, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation that the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention closes behind the door.
Fig. 2 is the lateral view that the latch hook automatic locking mechanism for rail vehicle sliding door of the present invention closes 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: helical groove portion; 602: polished rod portion; 603: the first helicla flutes; 604: the second helicla flutes; 7: cam; 701: concave part; 702: convex surface part.
Detailed description of the invention
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, after reaching the object of closing the door, sliding door can not be opened, can easily open fast when execution moves door opening action, 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, screw mandrel 6 is driven to comprise helical groove portion 601 and polished rod portion 602, rotating nut assembly 5 is socketed on the helical groove portion 601 of driving screw mandrel 6, cam 7 is fixed in the polished rod portion 602 of driving screw mandrel 6, lock hook assembly 2 is by being parallel to the front end driving the rebound 4 of screw mandrel 6 to be connected to rotating nut assembly 5, lock hook assembly 2 is welded with bearing pin 3, top and the cam 7 of bearing pin 3 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, the fixed bar 1 of hook groove 202 in clamping rail vehicle sliding door;
As shown in Figure 7, described helical groove portion 601 comprises the first helicla flute 603, the normal direction length that the side of the first helicla flute 603 has milled out the second helicla flute 604, second helicla flute 604 is identical with the normal direction move distance that rotating nut assembly 5 rotates a circle on helical groove portion 601; 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 milled out makes driving screw mandrel 6 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 helical groove portion 601 is 64mm, and the lead angle of the first helicla flute 603 is 45.52 °, and the idle running angle driving screw mandrel 6 is 30 °, and the width of the second helicla flute 604 is 5.24mm; Second helicla flute 604 and the first helicla flute 603 contact position 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 to rotate;
Described cam 7 comprises concave part 701 and convex surface part 702, and concave part 701 and convex surface part 702 are semi-circular shape, and during rail vehicle sliding door locking, concave part 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 end; When rail vehicle sliding door is opened, cam 7 rotates according to driving the idle running angle of screw mandrel 6, and convex surface part 702 promotes bearing pin 3, and back-moving spring 203 is with moveable lock hook body 201 to rotate, and the fixed bar 2 in rail vehicle sliding door departs from the hook groove 202 of latch hook body 201 front end.
Lower mask body introduces 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, , screw mandrel 6 is driven to drive spin nut assembly 5 to move, when close to door close put in place position time, the hook groove 202 of latch hook body 201 front end on spin nut assembly 5 is arranged on by rebound 4, 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 back-moving spring 203 act under, after Men Guan puts in place, hook groove 202 catches on fixed bar 1 and realizes locking, now, screw mandrel 6 is driven to stop operating, namely spin nut assembly 5 halts, door is finally closed, 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 be thrown off automatically, safe and reliable, as shown in Figure 5, bearing pin 3 props up the concave part 701 of cam 7, realize locking, if Fig. 1 and Fig. 2 is the structure chart that rail vehicle sliding door closes automatic locking mechanism behind the door,
(2) door opening action of rail vehicle sliding door, now, the hook groove 202 of latch hook body 201 front end catches on fixed bar 1, the axial non-displacement of spin nut assembly 5, on driving screw mandrel 6, the width of milling place is second helicla flute 604 of 5.24mm, driving screw mandrel 6 can be made to there is the rotation idle running angle of 30 °, be fixed on and drive the cam 7 on screw mandrel 6 to keep synchronous axial system with driving screw mandrel 6, the idle running angle of 30 ° is utilized to back down the bearing pin 3 be fixed on lock hook assembly 2, lever principle is utilized to make the hook groove 202 of latch hook body 201 front end depart from fixed bar 1, reach unblock effect, unlock rear drive screw mandrel 6 to be rotated further, make spin nut assembly 5 by driving the second helicla flute 604 and the first helicla flute 603 contact position on screw mandrel 6 to be that rounding off is got back in the first helicla flute 603, realize normal switch gate action, as shown in Figure 6, the convex surface part 702 propping up cam 7 promotes bearing pin 3 and rotates, realization is unblanked, as the structure chart of automatic locking mechanism when Fig. 3 and Fig. 4 is the unlatching of rail vehicle sliding door.
More than show and describe general 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; what describe in above-described embodiment and manual 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.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (4)

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 helical groove portion (601) and polished rod portion (602), described rotating nut assembly (5) is socketed on the helical groove portion (601) of driving screw mandrel (6), described cam (7) is fixed in the polished rod portion (602) of driving screw mandrel (6), described lock hook assembly (2) is by being parallel to the front end driving the rebound (4) of screw mandrel (6) to be connected to rotating nut assembly (5), described lock hook assembly (2) is welded with bearing pin (3), top and the cam (7) of described bearing pin (3) 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), the fixed bar (1) of described hook groove (202) in clamping rail vehicle sliding door,
Described helical groove portion (601) comprises the first helicla flute (603), the side of described first helicla flute (603) has milled out the second helicla flute (604), and the normal direction length of described second helicla flute (604) is identical with the normal direction move distance that rotating nut assembly (5) rotates a circle on helical groove portion (601); The degree of depth of described second helicla flute (604) is parallel with the bottom of the first helicla flute (603); The second helicla flute (604) milled out makes driving screw mandrel (6) be provided with an idle running angle; Screw thread in described rotating nut assembly (5) and the first helicla flute (603) match.
2. a kind of latch hook automatic locking mechanism for rail vehicle sliding door according to claim 1, it is characterized in that: the helical pitch of described helical groove portion (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 second helicla flute (604) is 5.24mm.
3. a kind of latch hook automatic locking mechanism for rail vehicle sliding door according to claim 1, is characterized in that: described second helicla flute (604) and the first helicla flute (603) contact position are rounding off.
4. 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 part (701) and convex surface part (702), described concave part (701) and convex surface part (702) are semi-circular shape, during rail vehicle sliding door locking, concave part (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 end; When rail vehicle sliding door is opened, cam (7) rotates according to driving the idle running angle of screw mandrel (6), convex surface part (702) promotes bearing pin (3), back-moving spring (203) band moveable lock hook body (201) rotates, and the fixed bar (1) in rail vehicle sliding door departs from the hook groove (202) of latch hook 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 CN103696640B (en)

Priority Applications (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

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 true CN103696640B (en) 2015-11-18

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Families Citing this family (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
FR3041604B1 (en) * 2015-09-25 2017-09-01 Airbus DEVICE FOR LOCKING A MOBILE ELEMENT SUCH AS A DOOR OF AN AIRCRAFT AND AN AIRCRAFT EQUIPPED WITH SAID LATCHING DEVICE
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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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
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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2335566B2 (en) * 2008-09-26 2010-11-26 Ojmar, S.A. COIN LOCK.

Patent Citations (4)

* 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
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

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