CN103161362A - Locking device for bottom side door of railway open wagon - Google Patents
Locking device for bottom side door of railway open wagon Download PDFInfo
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- CN103161362A CN103161362A CN201310115533XA CN201310115533A CN103161362A CN 103161362 A CN103161362 A CN 103161362A CN 201310115533X A CN201310115533X A CN 201310115533XA CN 201310115533 A CN201310115533 A CN 201310115533A CN 103161362 A CN103161362 A CN 103161362A
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Abstract
The invention relates to the technical field of railway transportation equipment, in particular to a locking device for a bottom side door of a railway open wagon. The locking device comprises a plug pin seat, a plug pin, a hanging ring seat and a hanging ring. The plug pin seat is fixed on a wagon body of the open wagon and is provided with a plug pin hole. The plug pin is provided with a transverse protruding plug pin head. The plug pin is in a tapered wedge shape and is matched with the plug pin hole. Matching surfaces between the plug pin and the plug pin hole are oblique surfaces. The inclination angle of the oblique surfaces is a self-locking angle. The hanging ring seat is located over the plug pin and is fixed on a door hinge of the open wagon. Two sides of the hanging ring seat are provided with non-concentric mounting holes. The left end and the right end of the upper portion of the hanging ring are respectively inserted into the non-concentric mounting holes of the hanging ring seat so that a dead point can exist when the hanging ring is turned upwards or downwards. The tapered-wedge-shaped plug pin has a self-locking function. The lower the plug pin is vibrated to be, the tighter the plug pin is. The plug pin is effort-saving in upward unlocking, and stepless adjustment of a door gap can be achieved. According to the locking device, the hanging ring can rotate just after the hanging ring is stressed. Consequently, the plug pin can not be unlocked by accident in the running process of the wagon and can not break away from the plug pin hole when an upper tippler turns over.
Description
Technical field
The present invention relates to the equipment of railway transportation technical field, be specifically related to a kind of lower railway truck door locking device.
Background technology
For conveniently assemble and disassemble goods and cleaning, truck generally is provided with the upper-turn-type underside gate in car body both sides.Every fan underside gate adopts 2 underside gate locking devices, and the underside gate locking device can be divided into hasp type locking device and two hasp type locking device.
The button iron of hasp type locking device is along unlatching and the locking of bolt central rotation to realize car door, and during locking, button iron drops in hasp seat groove by self gravitation, and its weight is 4.72kg/.The button iron of this kind locking device is in vehicle movement and possible tripping of dumptruct when unloading (this moment vehicle will overturn 170 ° of left and right), be anti-clamping iron tripping generation security incident, existing car adopts in a large number iron wire to buckle iron and door butt bundles, not only waste of manpower, material resources, financial resources, and impact loading and unloading goods efficient.
Two hasp type locking devices of two-stage locking are improved by hasp and form, and have increased one deck button iron to realize the two-stage locking on the hasp type locking device, have also set up the anti-clamping iron tripping in vehicle movement of lock iron, and its weight is 11.6kg/.Although this kind locking device can be prevented the tripping in vehicle movement of clamping iron, can not prevent that it from throwing off when dumptruct is unloaded, still need the iron wire binding during use.
In sum, all there is the bad problem of locking in underside gate locking device of the prior art, can not prevent simultaneously clamping iron in vehicle movement and dumptruct when unloading tripping.
Summary of the invention
The present invention provides a kind of lower railway truck door locking device in order to address the above problem, and need not the iron wire binding and can guarantee that vibration and the upset of upper dumptruct in vehicle operating can not cause locking device to open.
In order to achieve the above object, the technical solution used in the present invention is:
Lower railway truck door locking device comprises:
One plug housing is fixed on the car body of described open-top car, and described plug housing is provided with pin hole;
One latch, be provided with the fork of a transverse projections, the part that is positioned at described fork below on described latch is latch first, described latch first is Wedge type, described latch first matches with described pin hole, the fitting face of described latch first and described pin hole is the inclined-plane, and angle of inclination, described inclined-plane is Self-locking angle, and the fitting face of described pin hole and described latch first is the self-locking inclined-plane;
One link seat is positioned at the top of described latch, is fixed on the door butt of described open-top car, and the both sides of described link seat are provided with the installing hole of decentraction; And
One link, the two ends, left and right on described link top are inserted in respectively in the installing hole of decentraction of described link seat, make described link have the dead point when overturning up or down, described link stressed and cross the dead point after can overturn up or down;
When described locking device was the state of closing the door of described underside gate, described latch first was inserted in described pin hole, and the distance between the lower end of described link and described fork upper surface is inserted distance in described pin hole less than described latch first; When described locking device was the door opening state of described underside gate, described latch first was positioned at outside described pin hole, and the lower end of described link contacts and hook described fork with the soffit of described fork.
Further, described locking device also comprises:
One pin gear is fixed on the door butt of described open-top car, is positioned in the middle of described plug housing and described link seat, is used for described latch is positioned, and described latch can move up and down in described pin gear.
Further, described locking device also comprises:
One backstop is positioned at the top that described pin keeps off, and described backstop comprises backstop horizontal component and backstop vertical component, and described backstop horizontal component is fixed on described door butt, and is fixedly connected with described link seat;
Described latch also comprises:
The latch second portion is positioned at above described fork;
When described locking device was the door opening state of described underside gate, described backstop vertical component blocked described latch second portion in vertical direction.
Further, described locking device also comprises:
Anti-falling piece, the two ends, left and right on described link top are fixedly connected with a described anti-falling piece respectively.
Further, described anti-falling piece is bolt or annulus.
Further, described locking device also comprises:
Backing plate is used for adjusting the size that described link is crossed the required power in dead point, and described backing plate is arranged between described link seat and described anti-falling piece, and described backing plate is passed respectively at two ends, left and right, described link top.
Further, the offset between the installing hole of the decentraction by adjusting described link seat is controlled the size that described link is crossed the required power in dead point.
Further, described link is 8 fonts, and material is spring steel.
Further, described pin hole is rectangle, and the cross section of described latch first is rectangle.
Further, the pin hole on described plug housing is two.
Compare with the prior art scheme, the beneficial effect that the technical solution used in the present invention produces is as follows:
(1) in the present invention, Wedge type latch and plug housing fitting face are the inclined-plane, have auto-lock function, shake tighter and tighter downwards, upwards unblank laborsaving; And the Wedge type latch can realize the stepless adjustment of door gap, even still can lock after the car door distortion;
(2) in the present invention link due to the principle that adopted the dead point, only could rotate after stressed, latch can not opened by mistake in vehicle operating, can not deviate from when upper dumptruct upset, need not again door butt and locking device to be bundled with iron wire, save human and material resources, financial resources, improved operating efficiency.
Description of drawings
The locking device that Fig. 1 provides for the embodiment of the present invention is structural representation when closing the door state at the railway open wagon lower door;
The locking device that Fig. 2 provides for the embodiment of the present invention is lateral view when closing the door state at the railway open wagon lower door;
The lateral view of locking device when the railway open wagon lower door is door opening state that Fig. 3 provides for the embodiment of the present invention;
The locking device that Fig. 4 provides for the embodiment of the present invention is axonometric drawing when closing the door state at the railway open wagon lower door;
The axonometric drawing of locking device when the railway open wagon lower door is door opening state that Fig. 5 provides for the embodiment of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is described in detail.
As Fig. 1, Fig. 2 and shown in Figure 3, the embodiment of the present invention provides a kind of lower railway truck door locking device, and described locking device comprises plug housing 1, latch 2, link seat 3 and link 4.Wherein, plug housing 1 is fixed on the car body of open-top car, and plug housing 1 is provided with pin hole 11.Latch 2 is provided with the fork 21 of a transverse projections, and the part that is positioned at fork 21 belows on latch 2 is latch first 22, and the part that is positioned at fork 21 tops on latch 2 is latch second portion 23.Latch first 22 is Wedge type, and latch first 22 matches with pin hole 11, and latch first 22 is the inclined-plane with the fitting face of pin hole 11, and the angle of inclination, inclined-plane is Self-locking angle, and pin hole 11 is the self-locking inclined-plane with the fitting face of latch first 22.Link seat 3 is positioned at the top of latch, is welded on the door butt of open-top car, and the both sides of link seat 3 are provided with the installing hole 31 of decentraction.Link 4 is 8 fonts, and material is spring steel.The two ends, left and right on link 4 tops are inserted in respectively in the installing hole 31 of decentraction of link seat 3, make link 4 have the dead point when overturning up or down, link 4 stressed and cross the dead point after can overturn up or down, guarantee that link 4 can freely not rotate.Adjust the offset of installing hole 31 and can control the size that link is crossed the required power in dead point.
In the present embodiment, locking device also comprises pin gear 5 and backstop 6.Pin gear 5 is welded on the door butt of open-top car, is positioned in the middle of plug housing 1 and link seat 3, is used for latch 2 is positioned, and latch 2 can move up and down in pin gear 5.Backstop 6 is positioned at the top of pin gear 5, and backstop 6 comprises backstop horizontal component 61 and backstop vertical component 62, and backstop horizontal component 61 is welded on door butt, and also is fixedly connected by welding with link seat 3.
In the present embodiment, locking device also comprises anti-falling piece 7 and backing plate 8.The two ends, left and right on link 4 tops are fixedly connected with an anti-falling piece 7 respectively, can prevent that link 4 two ends from coming off from link seat 3.Link 4 can be electric welding with the connected mode of anti-falling piece 7.Anti-falling piece 7 is bolt, the annulus equal diameter part of being convenient to weld greater than installing hole 31 on link seat 3.Backing plate 8 is arranged between link seat 3 and anti-falling piece 7, and backing plate 8 is passed respectively at link 4 two ends, left and right, top.Adjust the thickness of backing plate 8 and can control the size that link is crossed the required power in dead point.
In the present embodiment, rotate in order to prevent latch 2, the pin hole 11 on plug housing 1 is rectangle, and the cross section of latch first 22 is rectangle.
In the present embodiment, the pin hole 11 on plug housing 1 can be one can be also two.When vehicle only loads and transports the general cargo that can normally close the door, only need the one-level locking, only be provided with a pin hole on plug housing 1 and get final product this moment.If when open-top car except the general cargo that can normally close the door of shipment, also needs to load and transport the large cargo such as coil of strip, equipment, this moment two pin holes just need to be set on plug housing, realize the secondary locking.When vehicle shipment large cargo, when needing wire rope is passed and is bundled into rope and fix from crack between a door and its frame, with the pin hole of latch insertion apart from the car door far-end, this moment, door gap was fit to pass the following wire rope commonly used of diameter 30mm, and can make that door-plate is spacing not to be contacted with wire rope, the wire rope of bale cargo and door-plate friction when avoiding vehicle operating and rupture.
In Fig. 1, Fig. 2 and Fig. 4, locking device is underside gate at closing time state, and this moment, latch first 22 was inserted in pin hole 11, and the distance between the lower end of link 4 and fork 21 upper surfaces is inserted the interior distances of pin holes 11 less than latch first 22.At this moment, no matter be in vehicle movement, or during the dumptruct unloading, because having the effect of external force, link 4 can not rotate, so latch 2 all can tripping.
In Fig. 3 and Fig. 5, locking device is the state of underside gate when opening the door, and this moment, latch first 22 was positioned at outside pin hole 11, and the lower end of link 4 contacts and hook fork 21 with the soffit of fork 21, is convenient to open the door.Backstop vertical component 62 blocks latch second portion 23 in vertical direction, prevents that latch 2 is pulled out loss.
The embodiment of the present invention has following advantage:
(1) latch of Wedge type can be realized the stepless adjustment of door gap, even still can lock after the car door distortion, can solve the large problem of door gap that existing open-top car exists;
(2) fitting face of latch and pin hole is the self-locking inclined-plane, the vibration that vehicle operating produces makes latch shake tighter and tighter downwards, but upwards unblank and very laborsaving, solved in the prior art underside gate due to the problem of bearing goods lateral pressure back pullout (BPO) difficult (will knock just and can open with hammer);
(3) link of latch top adopted the dead point principle, and link only could rotate after stressed, in the situation that there is no external force, the vibration in vehicle operating can not cause latch to open by mistake, and upper dumptruct upset can not make latch deviate from yet; This locking device does not need the iron wire binding can prevent latch tripping and disengagement when dumptruct is unloaded when vehicle operating, can solve hasp that existing universal gondola car uses needs the inertia problem of iron wire binding, can save human and material resources, financial resources, also can increase work efficiency;
(4) the hasp locking device that uses of existing open-top car is not the reeve spacing, need use at closing time powerfully with door closure, fragile car door, causes door plate deformation, will cause loose goods to leak after door plate deformation, increases the goods damage amount; This locking device has been realized the secondary locking, and during the secondary locking, crack between a door and its frame can pass the following wire rope of diameter 30mm, and can make that door-plate is spacing not to be contacted with wire rope, avoids the wire rope of bale cargo and door-plate friction and ruptures;
(5) this locking device maximum height is controlled in 80mm, and the high 12mm of hasp locking device that only uses than existing open-top car can reduce the goods accumulation to the impact of locking performance;
(6) the hasp locking device of the existing open-top car of weight ratio of this locking device is heavy 0.54kg/, and each car only increases invalid hauled weight 13kg, compares and can ignore with the numerical value of light weight 24t; The light 6.34kg/ of two hasp type locking devices of the existing open-top car of weight ratio of this locking device, can reduce cost of transportation, increase economic efficiency.
The above is most preferred embodiment of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. lower railway truck door locking device, is characterized in that, comprising:
One plug housing is fixed on the car body of described open-top car, and described plug housing is provided with pin hole;
One latch, be provided with the fork of a transverse projections, the part that is positioned at described fork below on described latch is latch first, described latch first is Wedge type, described latch first matches with described pin hole, the fitting face of described latch first and described pin hole is the inclined-plane, and angle of inclination, described inclined-plane is Self-locking angle, and the fitting face of described pin hole and described latch first is the self-locking inclined-plane;
One link seat is positioned at the top of described latch, is fixed on the door butt of described open-top car, and the both sides of described link seat are provided with the installing hole of decentraction; And
One link, the two ends, left and right on described link top are inserted in respectively in the installing hole of decentraction of described link seat, make described link have the dead point when overturning up or down, described link stressed and cross the dead point after can overturn up or down;
When described locking device was the state of closing the door of described underside gate, described latch first was inserted in described pin hole, and the distance between the lower end of described link and described fork upper surface is inserted distance in described pin hole less than described latch first; When described locking device was the door opening state of described underside gate, described latch first was positioned at outside described pin hole, and the lower end of described link contacts and hook described fork with the soffit of described fork.
2. lower railway truck door locking device as claimed in claim 1, is characterized in that, described locking device also comprises:
One pin gear is fixed on the door butt of described open-top car, is positioned in the middle of described plug housing and described link seat, is used for described latch is positioned, and described latch can move up and down in described pin gear.
3. lower railway truck door locking device as claimed in claim 2, is characterized in that, described locking device also comprises:
One backstop is positioned at the top that described pin keeps off, and described backstop comprises backstop horizontal component and backstop vertical component, and described backstop horizontal component is fixed on described door butt, and is fixedly connected with described link seat;
Described latch also comprises:
The latch second portion is positioned at above described fork;
When described locking device was the door opening state of described underside gate, described backstop vertical component blocked described latch second portion in vertical direction.
4. lower railway truck door locking device as claimed in claim 1, is characterized in that, described locking device also comprises:
Anti-falling piece, the two ends, left and right on described link top are fixedly connected with a described anti-falling piece respectively.
5. lower railway truck door locking device as claimed in claim 4, is characterized in that, described anti-falling piece is bolt or annulus.
6. lower railway truck door locking device as claimed in claim 4, is characterized in that, described locking device also comprises:
Backing plate is used for adjusting the size that described link is crossed the required power in dead point, and described backing plate is arranged between described link seat and described anti-falling piece, and described backing plate is passed respectively at two ends, left and right, described link top.
7. lower railway truck door locking device as claimed in claim 1, is characterized in that, the offset between the installing hole of the decentraction by adjusting described link seat is controlled the size that described link is crossed the required power in dead point.
8. lower railway truck door locking device as claimed in claim 1, is characterized in that, described link is 8 fonts, and material is spring steel.
9. lower railway truck door locking device as claimed in claim 1, is characterized in that, described pin hole is rectangle, and the cross section of described latch first is rectangle.
10. lower railway truck door locking device as claimed in claim 1, is characterized in that, the pin hole on described plug housing is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115533.XA CN103161362B (en) | 2013-04-07 | 2013-04-07 | Locking device for bottom side door of railway open wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115533.XA CN103161362B (en) | 2013-04-07 | 2013-04-07 | Locking device for bottom side door of railway open wagon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103161362A true CN103161362A (en) | 2013-06-19 |
| CN103161362B CN103161362B (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310115533.XA Active CN103161362B (en) | 2013-04-07 | 2013-04-07 | Locking device for bottom side door of railway open wagon |
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| CN (1) | CN103161362B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325988A (en) * | 2014-11-03 | 2015-02-04 | 南车长江车辆有限公司 | Locking device of discharge door and vehicle with locking device |
| CN107444596A (en) * | 2017-09-18 | 2017-12-08 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | For the Underwater Docking Device between underwater manned ROV |
| CN108928355A (en) * | 2017-05-25 | 2018-12-04 | 中车齐齐哈尔车辆有限公司 | A kind of rocket body transport vehicle and rocket body handling method |
| CN108944968A (en) * | 2017-05-25 | 2018-12-07 | 中车齐齐哈尔车辆有限公司 | A kind of rocket body transport vehicle and rocket body handling method |
| CN111843516A (en) * | 2020-07-29 | 2020-10-30 | 中车株洲车辆有限公司 | Production line and production process for lower side door assembly |
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| JPH0687581U (en) * | 1993-05-28 | 1994-12-22 | 東急車輛製造株式会社 | Locking structure of luggage box door in van type vehicle |
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| CN1959047A (en) * | 2006-10-17 | 2007-05-09 | 中国南车集团眉山车辆厂 | Door lock at underside of open freight car of railroad freingt activity |
| CN201924772U (en) * | 2011-03-23 | 2011-08-10 | 中集车辆（集团）有限公司 | Truck and truck cargo carriage door |
| CN102278019A (en) * | 2011-06-01 | 2011-12-14 | 南车眉山车辆有限公司 | Lower railway truck door locking device |
| CN203160895U (en) * | 2013-04-07 | 2013-08-28 | 南车长江车辆有限公司 | Locking device for lower side door of railway truck |
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2013
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| JPH0687581U (en) * | 1993-05-28 | 1994-12-22 | 東急車輛製造株式会社 | Locking structure of luggage box door in van type vehicle |
| EP1408181A2 (en) * | 2002-10-11 | 2004-04-14 | ArvinMeritor Light Vehicle Systems (UK) Ltd | Latch assembly and striker |
| CN1959047A (en) * | 2006-10-17 | 2007-05-09 | 中国南车集团眉山车辆厂 | Door lock at underside of open freight car of railroad freingt activity |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325988A (en) * | 2014-11-03 | 2015-02-04 | 南车长江车辆有限公司 | Locking device of discharge door and vehicle with locking device |
| CN108928355A (en) * | 2017-05-25 | 2018-12-04 | 中车齐齐哈尔车辆有限公司 | A kind of rocket body transport vehicle and rocket body handling method |
| CN108944968A (en) * | 2017-05-25 | 2018-12-07 | 中车齐齐哈尔车辆有限公司 | A kind of rocket body transport vehicle and rocket body handling method |
| CN107444596A (en) * | 2017-09-18 | 2017-12-08 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | For the Underwater Docking Device between underwater manned ROV |
| CN107444596B (en) * | 2017-09-18 | 2019-09-20 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | For the Underwater Docking Device between underwater manned aircraft |
| CN111843516A (en) * | 2020-07-29 | 2020-10-30 | 中车株洲车辆有限公司 | Production line and production process for lower side door assembly |
| CN111843516B (en) * | 2020-07-29 | 2022-03-08 | 中车株洲车辆有限公司 | Production line and production process for lower side door assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103161362B (en) | 2015-02-11 |
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Address after: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Patentee after: CRRC YANGTZE CO., LTD. Address before: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Patentee before: China South Locomotive & Rolling Stock Changjiang Vehicle Company |