CN202186313U - Pneumatic locking and unlocking device for back baffle of dump truck compartment - Google Patents
Pneumatic locking and unlocking device for back baffle of dump truck compartment Download PDFInfo
- Publication number
- CN202186313U CN202186313U CN2011202590132U CN201120259013U CN202186313U CN 202186313 U CN202186313 U CN 202186313U CN 2011202590132 U CN2011202590132 U CN 2011202590132U CN 201120259013 U CN201120259013 U CN 201120259013U CN 202186313 U CN202186313 U CN 202186313U
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- CN
- China
- Prior art keywords
- driving cylinder
- steel beam
- section steel
- locking
- opening device
- Prior art date
- 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 pneumatic locking and unlocking device for a back baffle of a dump truck compartment. The upper surface of a profile steel beam fixedly connected to one side of an auxiliary beam is provided with a shaft seat and a support shaft thereof, the shaft seat is used for supporting a bend locking hook, the support shaft is parallel to the axis of the profile steel beam, the lower surface of the profile steel beam is provided with a driving cylinder with a restoring spring, a driving cylinder piston rod positioned in a through hole of the profile steel beam is coupled with the rear end of the bend locking hook, an air supply pipeline of the driving cylinder is provided with an electromagnetic valve, and a dump truck instrument panel is provided with an electric switch for controlling the electromagnetic valve. The bend locking hook of the device is controlled by the driving cylinder with the reset spring, is opened when a piston of the driving cylinder is in rise travel, and is restored to be locked normally under the action of the restoring spring after the air supply pipeline of the driving cylinder is closed. The mechanical positions of the driving cylinder and the bend locking hook of the pneumatic locking and unlocking device are stable, and the shortcoming that chain tension of a traditional compartment back baffle locking and unlocking device is difficult for ensuring tight locking of a back baffle is overcome more thoroughly.
Description
Technical field
The utility model belongs to the auxiliary mechanism of dumping truck casing, particularly relates to a kind of tailgate of dump truck carriage body pneumatic type lock opening device.
Background technology
The lock opening device of traditional dumping truck casing back shield comprises that an end is fixed in the chain of auxiliary girder, is connected in the bent angle latch hook and the latch hook extension spring of the chain other end.
The traditional casing back shield lock opening device of above-mentioned dumping truck exists the chain tension degree to be difficult to the defective that guarantees that the back shield locking is tight.
In order to solve the said defective that above-mentioned traditional locks opening device exists, the utility model of patent No. 200820187862.X " locking and unlocking mechanism of tailgate of dump truck carriage body " discloses following technical scheme: locking and unlocking mechanism of tailgate comprises base plate after cross member and back shield; Said base plate after cross member is provided with 1 or a plurality of lockholes side by side, corresponding 1 or a plurality of dead bolts that match with it that are provided with of back shield; Each dead bolt connects a hydraulic ram that is used to drive said dead bolt locking and unlatching through connecting rod.
Though above-mentioned utility model has the advantages that the envelope back shield can be locked, exist structure than complicated problems, especially have slightly under the situation of distortion at back shield, the dead bolt of deformation place will be difficult to insert cooresponding lockhole and influence locking effect.
Summary of the invention
The utility model is for the said technical matters that solves above-mentioned utility model existence a kind of tailgate of dump truck carriage body pneumatic type lock opening device to be provided.
The utility model is taked following technical scheme for realizing above-mentioned purpose: this tailgate of dump truck carriage body pneumatic type lock opening device comprises the bent angle latch hook; Characteristic is; The section steel beam upper surface that is fixedly connected on auxiliary girder one side is provided with axle bed and the pivot shaft thereof that supports the bent angle latch hook; Pivot shaft and section steel beam axis parallel, and the section steel beam lower surface is provided with the driving cylinder of band retracing spring, and the driving cylinder piston rod that is arranged in the section steel beam via hole is connected with bent angle latch hook rear end axle; The supply air line that drives cylinder is provided with electromagnetic valve, and the dumping truck gauge panel is provided with the electric switch of control electromagnetic valve.
The utility model can also be taked following technical measures:
Said section steel beam is made up of channel-section steel, and channel-section steel one end and auxiliary girder one side fix, and the other end fixes with the supplemental support beam that is connected in auxiliary girder.
The driving cylinder of said band retracing spring is oblate.
The driving cylinder of said oblate band retracing spring is the braking automobile wheel cylinder.
The beneficial effect and the advantage of the utility model are: the bent angle latch hook of this pneumatic type lock opening device is by the driving cylinder control of band retracing spring; When the piston of driving cylinder is rise; The bent angle latch hook is an opening, and the supply air line of driving cylinder is closed back bent angle latch hook under the effect of retracing spring and reverted to the locking normality.The driving cylinder of this pneumatic type lock opening device and the mechanical location of bent angle latch hook are stable, have overcome traditional casing back shield lock opening device more completely and have existed the chain tension degree to be difficult to the defective that guarantees that the back shield locking is tight.The utlity model has compact conformation, the firm and strong outstanding advantage of adaptation back shield deformability.
Description of drawings
Accompanying drawing 1 is the utility model example structure scheme drawing.
Accompanying drawing 2 is that Figure 1A is to view.
Accompanying drawing 3 is that Figure 1B is to view.
Mark among the figure: 1 section steel beam, 2 axle beds, 3 pivot shafts, 4 bent angle latch hooks, 5 drive cylinder, 5-1 piston rod, 5-2 intake interface, 6 cardan axles.
The specific embodiment
Below in conjunction with Figure of description the utility model is further described.
Like Fig. 1,2,3 illustrated embodiments, section steel beam 1 upper surface that is fixedly connected on auxiliary girder one side is provided with axle bed 2 and the pivot shaft 3 thereof that supports bent angle latch hook 4, and pivot shaft 3 parallels with the axis of section steel beam 1.Section steel beam 1 lower surface is provided with the driving cylinder 5 of band retracing spring; The driving cylinder piston rod 5-1 that is arranged in the section steel beam via hole is connected through cardan axle 6 with bent angle latch hook 4 rear ends; The intake interface 5-2 institute bonded assembly supply air line that drives cylinder 5 is provided with electromagnetic valve (accompanying drawing is not shown), and the dumping truck gauge panel is provided with the electric switch (accompanying drawing is not shown) of control electromagnetic valve.
The section steel beam 1 of present embodiment is made up of channel-section steel, and auxiliary girder one side in channel-section steel one end and compartment fixes, and the other end fixes with the supplemental support beam (accompanying drawing is not shown) that is connected in auxiliary girder.Section steel beam 1 takes the fixing mode in two ends stable to guarantee it.
The driving cylinder 5 of the band retracing spring of present embodiment is oblate, and oblateness helps reducing the volume of this device, and embodiment adopts China's east wind autotruck front-wheel wheel cylinder.
Shown in the drawings device adopts axisymmetric mode to process, and is arranged at the outside of compartment of self-discharging automobile left and right sides auxiliary girder respectively.
Claims (4)
1. a tailgate of dump truck carriage body pneumatic type is locked opening device; Comprise the bent angle latch hook; It is characterized in that: the section steel beam upper surface that is fixedly connected on auxiliary girder one side is provided with axle bed and the pivot shaft thereof that supports the bent angle latch hook; Pivot shaft and section steel beam axis parallel, and the section steel beam lower surface is provided with the driving cylinder of band retracing spring, and the driving cylinder piston rod that is arranged in the section steel beam via hole is connected with bent angle latch hook rear end axle; The supply air line that drives cylinder is provided with electromagnetic valve, and the dumping truck gauge panel is provided with the electric switch of control electromagnetic valve.
2. pneumatic type lock opening device according to claim 1, it is characterized in that: said section steel beam is made up of channel-section steel, and channel-section steel one end and auxiliary girder one side fix, and the other end fixes with the supplemental support beam that is connected in auxiliary girder.
3. pneumatic type lock opening device according to claim 1, it is characterized in that: the driving cylinder of said band retracing spring is for oblate.
4. pneumatic type lock opening device according to claim 3, it is characterized in that: the driving cylinder of said oblate band retracing spring is the braking automobile wheel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202590132U CN202186313U (en) | 2011-07-21 | 2011-07-21 | Pneumatic locking and unlocking device for back baffle of dump truck compartment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202590132U CN202186313U (en) | 2011-07-21 | 2011-07-21 | Pneumatic locking and unlocking device for back baffle of dump truck compartment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202186313U true CN202186313U (en) | 2012-04-11 |
Family
ID=45917780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202590132U Expired - Fee Related CN202186313U (en) | 2011-07-21 | 2011-07-21 | Pneumatic locking and unlocking device for back baffle of dump truck compartment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202186313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253050A (en) * | 2015-11-05 | 2016-01-20 | 湖南汽车制造有限责任公司 | Locking device and dumper provided with locking device |
| CN105383356A (en) * | 2015-11-16 | 2016-03-09 | 三一汽车制造有限公司 | Rotary locking device and dumper provided with same |
-
2011
- 2011-07-21 CN CN2011202590132U patent/CN202186313U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253050A (en) * | 2015-11-05 | 2016-01-20 | 湖南汽车制造有限责任公司 | Locking device and dumper provided with locking device |
| CN105253050B (en) * | 2015-11-05 | 2018-01-19 | 湖南汽车制造有限责任公司 | Locking device and the dumper for being equiped with the locking device |
| CN105383356A (en) * | 2015-11-16 | 2016-03-09 | 三一汽车制造有限公司 | Rotary locking device and dumper provided with same |
| CN105383356B (en) * | 2015-11-16 | 2018-01-19 | 三一汽车制造有限公司 | Rotating locking apparatus and the dumper for being equiped with the rotating locking apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20120721 |