CN2157282Y - Door opening mechanism capable of preventing self-locking - Google Patents
Door opening mechanism capable of preventing self-locking Download PDFInfo
- Publication number
- CN2157282Y CN2157282Y CN 93228184 CN93228184U CN2157282Y CN 2157282 Y CN2157282 Y CN 2157282Y CN 93228184 CN93228184 CN 93228184 CN 93228184 U CN93228184 U CN 93228184U CN 2157282 Y CN2157282 Y CN 2157282Y
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- China
- Prior art keywords
- door
- hinged
- pull bar
- end points
- utility
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a wagon door opening and closing mechanism. The utility model is hinged in order by a pneumatic functioning cylinder (2), a V-shaped lever (3), a draw rod (4) and one end A of a three-endpoint lever (5); the other ends of a draw rod (6) and a draw rod (7) on the other two endpoints end C and end D are respectively hinged with a right door (9) and a left door (8). The utility model is characterized in that one ends of the draw rod (7) and the draw rod (6) are respectively made into arc slide ways (10) and (11) with a supporting point B as the center of a circle and with BD < 0 > and BC < 0 > as the radii. The hinge shafts (12) and (13) on the end D and the end C of the three-endpoint lever (5) are sliding matched with the components to form a slide way member. The utility model has the advantages of simple and feasible structure, safety and convenient maintenance.
Description
The utility model relates to door contact interrupter mechanism, opens the door on the door opening and closing mechanism of lorry in the end that is applicable to the industrial and mineral railway transportation.
At present, the open the door switching mechanism of lorry of the end of industrial and mineral railway transportation is made up of following member: be fixed on the end A in pneumatic acting cylinder (2) on the truck body (1), V-arrangement lever (3), pull bar (4), the three end points levers (5), they are that order is hinged; The fulcrum B of three end points levers (5) is hinged on the vehicle body (1), and the other end that is hinged in addition pull bar (6) on two end points end C and the end D, pull bar (7) is hinged with right car door (9), left-hand door (8) respectively.Piston rod edge when pneumatic acting cylinder (2)
Opposite direction by right-hand member when left end promotes, three end points levers (5) rotate around fixed support B along counter-clockwise direction, the end C of three end points levers (5) and end D close right car door (9), left-hand door (8) by pull bar (6), pull bar (7) respectively.Goods is packed into from the railway carriage top and is full of, when needs are unloaded, and the piston rod edge of pneumatic acting cylinder (2)
Direction is promoted to right-hand member by left end, and three end points levers (5) rotate around fixed support B along clockwise direction, and the end C of three end points levers (5) and end D open unloading by extension bar (6), pull bar (7) with right car door (9), left-hand door (8) respectively.Lorry is opened the door when heavy duty is unloaded in this end, and door-opening mechanism is dumb, and the phenomenon that often has the malfunctioning car door of not opening of door-opening mechanism to unload takes place.With left-hand door (8) is example.At closing time, the end D of three end points levers (5) rotates around fulcrum B along counter-clockwise direction, faces the some D that is situated between by the self-locking of car door (8)
0Turn over again
,
For left-hand door from hold depth, be to prevent lorry to like to leak goods necessary in outward opening door on operation way.When being zero load, this kind lorry closes the door, so be easy to realize by pneumatic acting cylinder.When opening the door, the end D of three end points levers (5) must be along clockwise direction turns over around fulcrum B from the fastening position of car door (8)
Face Jie to self-locking and put a D
0, just overcome the self-locking of mechanism, be rotated further then left-hand door (8) is opened.Bear under the big lateral pressure situation from goods at wagon heavy duty left-hand door (8), the end D of three end points levers (5) rotates around fulcrum B from the fastening position of left-hand door (8)
To D
0Point often is difficult to realize, that is to say that the self-locking that overcomes mechanism often is difficult to realize.In △ DGB, line segment GB+BD＞GD, BD
0So=BD is GB+BD
0＞GD promptly is GD
0＞GD.Above-mentioned the analysis showed that, the end D of three end points levers (5) rotates around fulcrum B from the relevant position of left-hand door closed condition
To D
0During point, left-hand door (8) must be along straight line GD
0Direction is made straight-line displacement △, △=GD
0-GD.Be actually left-hand door (8) and must close earlier an Xiamen before opening the door, otherwise the door of just not opening.Because the lateral pressure that left-hand door bears during heavy duty is bigger, although straight-line displacement amount △ very little (being generally 20 millimeter), but the merit that requires pneumatic acting cylinder (2) to be done is very big, so often having, pneumatic acting cylinder (2) is difficult to overcome larger side pressure and the phenomenon generation of the left-hand door of not opening (8), and influence unloading in time.
The purpose of this utility model is that mechanism opens the door dumbly when opening the door the door-opening mechanism heavy duty unloading of lorry at the existing end, the phenomenon that the car door of not opening can't unload is often arranged and a kind of door-opening mechanism that can overcome self-locking that proposes.It can be realized that mechanism at closing time has and certain can not open automatically and leak goods from hold depth car door when guaranteeing the heavy duty driving; Mechanism self guarantees to open the door unloading than being easier to overcome self-locking when opening the door.The utility model is simple for structure, and is safe and reliable, is convenient to maintenance.
The utility model is to realize like this.
The door-opening mechanism that overcomes self-locking is made up of following member: be fixed on the end A in pneumatic acting cylinder (2) on the vehicle body (1), V-arrangement lever (3), pull bar (4), the three end points levers (5), they are that order is hinged; The fulcrum B of three end points levers (5) is hinged on the vehicle body (1), the other end that is hinged in addition pull bar (6) on two end points end C and the end D, pull bar (7) is hinged with right car door (9), left-hand door (8) respectively, characteristics be an end of pull bar (7) and pull bar (6) to make with fulcrum B respectively be the center of circle, BD
0For the circular arc type chute (10) of radius with fulcrum B is the center of circle, BC
0Be the circular arc type chute (11) of radius, chute (10) and chute (11) respectively with the end D of three end points levers (5) and end C on hinge (12) and hinge (13) the composition runner component that is slidingly matched mutually.Its another characteristics are chute arcs of runner component
With
Chord length be 25～50mm.
The utility model is described in further detail with an embodiment below.
Fig. 1 is the door-opening mechanism structural representation of lorry of opening the door at the end.
Fig. 2 is the structural representation of left side door-opening mechanism of lorry of opening the door at the end.
Fig. 3 is a door-opening mechanism runner component structural representation of the present utility model.
Fig. 4 is that the utility model shows structural representation along cuing open of E-E plane among Fig. 3.
The door-opening mechanism that overcomes self-locking is made up of following member: be fixed on the end A in pneumatic acting cylinder (2) on the vehicle body (1), V-arrangement lever (3), pull bar (4), the three end points levers (5), above-mentioned member is that order is hinged; The fulcrum B of three end points levers (5) is hinged on the vehicle body (1), the other end that is hinged in addition pull bar (6) on two end points end C and the end D, pull bar (7) is hinged with right car door (9), left-hand door (8) respectively, characteristics are ends of extension bar (7) and pull bar (6), promptly be and that hinged end of three end points levers (5), make arc chute (10) and circular arc type chute (11) along its axial line.The circular arc of circular arc type chute (10) is to be the center of circle with fulcrum B, BD
0Be the formed circular arc of radius; The circular arc of circular arc type chute (11) is to be the center of circle with fulcrum B, BC
0Be the formed circular arc of radius.Chute (10) and chute (11) respectively with the end D of three end points levers (5) on hinge (12) and the composition runner component that is slidingly matched mutually of the hinge (13) on the end C.When the lorry zero load is closed the door, the piston rod edge of pneumatic acting cylinder (2)
Opposite direction promote to left end by right-hand member, three end points levers (5) rotate around fixed support B along counter-clockwise direction, and the end C of three end points levers (5) and end D face the some C that is situated between to the self-locking that pull bar (6), pull bar (7) are pulled to respectively separately by the hinge on it (13), hinge (12) respectively
0And D
0, being rotated further then and being pulled to position C and position D, this moment, right car door (9) and left-hand door (8) were closed condition.Simultaneously, right, left-hand door all is in self-locking state, can prevent the unexpected in transit phenomenon generation of goods of opening the door after the loading effectively with Louing.When the lorry unloading is opened the door, the piston rod edge of pneumatic acting cylinder (2)
Direction promotes from left to right, three end points levers (5) rotate around fixed support B along clockwise direction, hinge (13) and hinge (12) on the end C of three end points levers (5) and the end D rotate along chute (11) that matches separately and chute (10) with comparalive ease, and its rotation camber line is
With
, be rotated further the self-locking of crossing separately and face the some C that is situated between
0And D
0The time, this moment, left and right car door was easy to be opened under the acting in conjunction of goods to the lateral pressure of car door and pneumatic acting cylinder (2), unloading smoothly.
Circular arc type chute arc of the present utility model
With
Chord length be 25mm.So the utility model realizes that the lorry car door closes, opens flexibly.
The utility model is applicable to the lorry that opens the door of the end in the industrial and mineral railway transportation, can carry sintering feed, coke, ore etc.
The wheel of lorry will be held up by the railway carriage that epimere (16), slope board (17), left-hand door (8), right car door (9) and vehicle body (1) are formed by the body frame (15) that is installed on it (14).
Claims (2)
1, overcome the door-opening mechanism of self-locking, be made up of following member: be fixed on the end A in pneumatic acting cylinder (2) on the vehicle body (1), V-type lever (3), pull bar (4), the three end points levers (5), they are that order is hinged; The fulcrum B of three end points levers (5) is hinged on the vehicle body (1), the other end that is hinged in addition pull bar (6) on two end points end C and the end D, pull bar (7) is hinged with right car door (9), left-hand door (8) respectively, and it is center of circle BD that an end that it is characterized in that pull bar (7) and pull bar (6) is made with fulcrum B respectively
0For the circular arc type chute (10) of radius with fulcrum B is center of circle BC
0Be the circular arc type chute (11) of radius, chute (10) and chute (11) respectively with the end D of three end points levers (5) and end C on hinge (12) and hinge (13) the composition runner component that is slidingly matched mutually.
2, door-opening mechanism as claimed in claim 1 is characterized in that the circular arc type chute arc of runner component
With
Chord length be 25～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228184 CN2157282Y (en) | 1993-05-12 | 1993-05-12 | Door opening mechanism capable of preventing self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228184 CN2157282Y (en) | 1993-05-12 | 1993-05-12 | Door opening mechanism capable of preventing self-locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157282Y true CN2157282Y (en) | 1994-02-23 |
Family
ID=33805302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93228184 Expired - Fee Related CN2157282Y (en) | 1993-05-12 | 1993-05-12 | Door opening mechanism capable of preventing self-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157282Y (en) |
-
1993
- 1993-05-12 CN CN 93228184 patent/CN2157282Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |