CN207997926U - A kind of semitrailer - Google Patents
A kind of semitrailer Download PDFInfo
- Publication number
- CN207997926U CN207997926U CN201820330135.8U CN201820330135U CN207997926U CN 207997926 U CN207997926 U CN 207997926U CN 201820330135 U CN201820330135 U CN 201820330135U CN 207997926 U CN207997926 U CN 207997926U
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- CN
- China
- Prior art keywords
- cat ladder
- connecting rod
- slip bar
- support leg
- vehicle
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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.)
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Abstract
A kind of semitrailer, including chassis, gooseneck portion and two telescopic support legs, the cat ladder for big machinery to pedal is hinged in tail end, it is characterised in that:It is provided with a groove on cat ladder, a shaft is equipped on groove top, is screwed in shaft equipped with an anti-slip bar, the confined planes for limiting anti-slip bar rotation angle are equipped on groove top;Connecting rod is equipped between two support legs, the connecting rod is slidably connected by the sleeve at connecting rod both ends with support leg.The utility model structure is in use, anti-slip bar can be angled with cat ladder under the action of gravity or chain and plays the role of support to it, on the one hand the load-bearing capacity of cat ladder is improved, on the one hand the reaction force that vehicle is subject to during entrucking is counteracted, improves the stability of vehicle;In addition, making support leg be connected and fixed by connecting rod, the intensity and stiffness of support leg are improved, the stability of vehicle is further improved.
Description
Technical field
The utility model belongs to cargo vehicle technical field, is related to a kind of semitrailer.
Background technology
Semitrailer chassis structure at present, including two side bars of parallel arrangement, two main longitudinal griders and main vertical through two
Beam is fixed on several between two side bars and runs through beam.The height of this traditional semitrailer chassis structure is relatively high, therefore
The loading end height of semitrailer equipped with this chassis is all higher.When semitrailer is for delivering heavy mechanical equipment or higher cargo
When, center of gravity of goods is high, this causes intact stability bad first, and in turning, brake and severe road conditions, travel safety is substantially
Decline;Secondly so that vehicle shape superelevation, can not pass through tunnel and overpass etc..In view of the above-mentioned problems, application No. is
201020562158.5 utility model patent disclose a kind of semitrailer, solve the above problem.
But include in the prior art semitrailer disclosed in the aforementioned patent, do not consider to fill under no headstock state
The stability unloaded.Present vehicle in order to improve efficiency and benefit, one headstock of generally use arrange in pairs or groups multiple trailers mode into
Row hauling operation, this just needs trailer handling goods or when vehicle in the state that no headstock is drawn that can keep enough steady
It is qualitative;And existing semitrailer supports vehicle by rear wheels and positioned at two independent stabilizer blades at front gooseneck position, support
Dynamics is insufficient, it is easy to the case where being distorted, deforming.In addition, when loading engineering truck, big machinery hingedly connects from tail end
The cat ladder connect to pedal when, especially just start stress when, the weight of entire big machinery concentrates on the tailstock, and semitrailer front end does not have
When having headstock traction, it is possible to can tilt, influence to freight, or even cause vehicle damage.
Utility model content
The purpose of this utility model is to provide a kind of semitrailer, to solve the problems of the prior art.
To achieve the above object, the utility model adopts the following technical solution:A kind of semitrailer, including carry one group of tire
Chassis, chassis front end is provided with the gooseneck portion being connected with headstock and two telescopic support legs, confession is hinged in tail end
The cat ladder of big machinery to pedal, it is characterised in that:It is provided with a groove on cat ladder, a shaft is equipped on groove top,
It is screwed in shaft equipped with an anti-slip bar, the confined planes for limiting anti-slip bar rotation angle is equipped on groove top;In two supports
Connecting rod is equipped between leg, the connecting rod is slidably connected by the sleeve at connecting rod both ends with support leg.
Further:Stabilizer blade is hinged with by articulated shaft below support leg, inside is equipped with limiting plate below stabilizer blade.
The utility model has the beneficial effects that:The utility model structure in use, anti-slip bar can in gravity or
It is angled with cat ladder and play the role of support to it under the action of chain, the load-bearing capacity of cat ladder is on the one hand improved,
On the one hand the reaction force that vehicle is subject to during entrucking is counteracted, improves the stability of vehicle;In addition, passing through connecting rod
So that support leg is connected and fixed, improves the intensity and stiffness of support leg, further improve the stability of vehicle.In addition, this knot
Structure also have it is simple in structure, it is at low cost, the advantages of convenient for safeguarding.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model;
Fig. 2 is the cat ladder part-structure schematic diagram of the utility model;
Fig. 3 is the cat ladder partial cross-sectional structural diagram of the utility model;
Fig. 4 is the support leg part-structure schematic diagram of the utility model.
Number explanation in figure:1 it is chassis, 2 be gooseneck portion, 3 be support leg, 4 be cat ladder, 5 be groove, 6 be shaft, 7 is
Anti-slip bar, 71 be driven sprocket, 8 be confined planes, 9 be connecting rod, 10 be sleeve, 11 be stabilizer blade, 12 be limiting plate, 13 be limit
Block, 14 be fixing axle, 141 be drive sprocket, 15 be chain.
Specific implementation mode
It is as shown in Figs 1-4 a kind of semitrailer of the utility model structure, includes the chassis 1 with one group of tire, in chassis
Front end is provided with the gooseneck portion 2 being connected with headstock and two telescopic support legs 3, is hinged with for big machinery to pedal in tail end
Cat ladder 4 is provided with a groove 5 on cat ladder, is equipped with a shaft 6 on groove top, is screwed in shaft anti-slip equipped with one
Bar 7 is equipped with the confined planes 8 for limiting anti-slip bar rotation angle on groove top;Connecting rod 9 is equipped between two support legs,
The connecting rod is slidably connected by the sleeve 10 at connecting rod both ends with support leg, is additionally provided in support leg for limiting sleeve
The limited block 13 of displacement;Stabilizer blade 11 is hinged with by articulated shaft below support leg, inside is equipped with limiting plate 12 below stabilizer blade.
Limiting plate is welded below stabilizer blade, can be increased forced area as the backing plate under support leg when supporting leg is propped, be reduced pressure
By force, after supporting leg is packed up, by stabilizer blade along being dug with the connection axially inner side between supporting leg, connecting rod is resisted on the upside of limiting plate, is prevented
Only it glides, and improves safety.The overturning of stabilizer blade is clamped after manual overturning may be used or bondage is fixed, and can also use whirlpool
The mode of worm and gear, i.e., weld a turbine on stabilizer blade, is screwed on supporting leg and fixes one and the matched scroll bar of turbine, can also adopt
With existing other modes.
The cat ladder is hinged with chassis by the fixing axle 14 being arranged on chassis, and drive chain is further fixed in fixing axle
Wheel 141, on anti-slip bar be equipped with the matched driven sprocket 71 of drive sprocket, pass through chain between drive sprocket and driven sprocket
Item 15 connects.Drive sprocket is fixed with vehicle frame, and during cat ladder is overturn, chain is run along drive sprocket small range, band
Dynamic driven sprocket rotation, adjusts the gear ratio of two sprocket wheels, make anti-slip bar cat ladder when being contacted with ground, reach best support level
It sets, this structure makes the operation of anti-slip bar not against gravity, and operation is more stable and reliable.
The utility model structure in use, anti-slip bar can under the action of gravity or chain with cat ladder at certain
Angle simultaneously plays the role of it support, on the one hand improves the load-bearing capacity of cat ladder, on the one hand counteracts vehicle in entrucking
The reaction force being subject in journey improves the stability of vehicle;In addition, making support leg be connected and fixed by connecting rod, improve
The intensity and stiffness of support leg, further improve the stability of vehicle.
Claims (3)
1. a kind of semitrailer includes the chassis with one group of tire, chassis front end be provided with the gooseneck portion being connected with headstock and
Two telescopic support legs are hinged with the cat ladder for big machinery to pedal in tail end, it is characterised in that:It is arranged on cat ladder
There is a groove, a shaft is equipped on groove top, is screwed in shaft equipped with an anti-slip bar, is equipped on groove top for limiting
The confined planes of anti-slip bar rotation angle;Connecting rod is equipped between two support legs, the connecting rod passes through at connecting rod both ends
Sleeve is slidably connected with support leg.
2. semitrailer according to claim 1, it is characterised in that:The cat ladder by the fixing axle that is arranged on chassis with
Chassis is hinged, and drive sprocket is further fixed in fixing axle, be equipped on anti-slip bar with the matched driven sprocket of drive sprocket,
It is connected by chain between drive sprocket and driven sprocket.
3. semitrailer according to claim 1, it is characterised in that:Stabilizer blade is hinged with by articulated shaft below support leg,
Inside is equipped with limiting plate below stabilizer blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820330135.8U CN207997926U (en) | 2018-03-12 | 2018-03-12 | A kind of semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820330135.8U CN207997926U (en) | 2018-03-12 | 2018-03-12 | A kind of semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207997926U true CN207997926U (en) | 2018-10-23 |
Family
ID=63838774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820330135.8U Active CN207997926U (en) | 2018-03-12 | 2018-03-12 | A kind of semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207997926U (en) |
-
2018
- 2018-03-12 CN CN201820330135.8U patent/CN207997926U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |