CN202480993U - Step ladder device and engineering machinery vehicle - Google Patents
Step ladder device and engineering machinery vehicle Download PDFInfo
- Publication number
- CN202480993U CN202480993U CN2012200335834U CN201220033583U CN202480993U CN 202480993 U CN202480993 U CN 202480993U CN 2012200335834 U CN2012200335834 U CN 2012200335834U CN 201220033583 U CN201220033583 U CN 201220033583U CN 202480993 U CN202480993 U CN 202480993U
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- attaching parts
- main body
- bearing pin
- vehicle
- joint portion
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Abstract
The utility model discloses a step ladder device and an engineering machinery vehicle. The step ladder device comprises a first combining part, a second combining part, a main step ladder body and a connecting unit, wherein the first combining part and the second combining part are fixedly connected with a frame of the vehicle; the main step ladder body is fixedly arranged at the first combining part in a pivoted mode through a first pin shaft; the connecting unit comprises a first connecting piece and a second connecting piece, the first connecting piece is fixedly arranged at the second combining part in the pivoted mode through a second pin shaft, and the second connecting piece is connected with the first connecting piece and the main step ladder body; and when the main step ladder body swings around the first pin shaft, the main step ladder body drives the first connecting piece through the second connecting piece to swing around the second pin shaft, so that the main step ladder body is unfolded or folded. Through the mode, the unfolding and the withdrawing of the step ladder device can be realized.
Description
Technical field
The utility model relates to mechanical engineering field, particularly relates to a kind of step device and engineering machinery vehicle.
Background technology
In the prior art, the vehicle crew is engineering machinery vehicle step through fixing as hoisting crane up and down.Step is that the mode of bolt is fixed in the outside, car body chassis through welding perhaps.
Because step is fixed on the car body chassis outside, and can't shrink, this will produce body construction and take up room greatlyyer, can make in the vehicle ' process easily and other objects bump the generation accident.Simultaneously, because the structure of step of the prior art built on the sand, step uses not firm.
Therefore, a kind of step device and engineering machinery vehicle need be provided, to solve the insecure and not recyclable caused problem of structure owing to step.
The utility model content
The technical matters that the utility model mainly solves provides a kind of step device and engineering machinery vehicle, can solve the insecure and not recyclable caused problem of structure of step device.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of step device is provided, is used for operator's vehicle up and down, the step device comprises first joint portion, second joint portion, step main body and linkage unit.Captive joint with the vehicle frame of vehicle with second joint portion in first joint portion; The step main body is fixed in first joint portion pivotly through first bearing pin; Linkage unit comprises first attaching parts and second attaching parts; One end of first attaching parts is fixed in second joint portion pivotly through second bearing pin; The other end of first attaching parts connects an end of second attaching parts through croisillon de joint homocinetique, and the other end of second attaching parts is connected on the step main body through the 4th bearing pin; Wherein, when the step main body was swung around first bearing pin, the step main body drove first attaching parts through second attaching parts and swings around second bearing pin, launched or folded to realize the step main body.
Wherein, the part of the vehicle frame between first attaching parts, second attaching parts, step main body and first joint portion and second joint portion constitutes four-bar mechanism.
Wherein, when the step main body was launched, the step main body was perpendicular to vehicle frame, and first attaching parts and second attaching parts draw a straight line, straight line, step main body and vehicle frame form right angle triangle, and straight line is as the longest edge of right-angled triangle.
Wherein, the step device also comprises a plurality of spring pins, and the corresponding respectively axle head that is installed on first bearing pin, second bearing pin, croisillon de joint homocinetique and the 4th bearing pin of a plurality of spring pins is with removably fixing first bearing pin, second bearing pin, croisillon de joint homocinetique and the 4th bearing pin.
Wherein, first attaching parts and second attaching parts are steel plate or aluminum alloy.
Wherein, the bottom of step main body is provided with the diamond tread design step tread plate, and the afterbody of diamond tread design step tread plate is provided with anti-skidding empennage.
For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: a kind of engineering machinery vehicle is provided, and this project motor vehicles and machines comprise above-mentioned step device.
The beneficial effect of the utility model is: the situation that is different from prior art; Step device of the utility model and engineering machinery vehicle stretch step through the structure of change step and the connection mode of step and car body when in use, trample the auto-lock function that utilizes four bar structures under the stressed situation and keep fixing; Reliable and stable; In idle, can shrink, make things convenient for vehicle ', avoid vehicle to link and collide with other incoherent objects in the process of moving.
Description of drawings
Fig. 1 is the schematic perspective view according to the step device of the utility model one preferred embodiment;
Fig. 2 is the scheme drawing that the step device among Fig. 1 launches to be fixed in vehicle;
Fig. 3 is the schematic perspective view under the step folding device state among Fig. 1;
Fig. 4 is the scheme drawing that the step folding device among Fig. 1 is fixed in vehicle.
The specific embodiment
See also Fig. 1, Fig. 1 is the schematic perspective view according to the step device 10 of the utility model one preferred embodiment.As shown in Figure 1, the step device 10 of the utility model comprises: first joint portion 11, second joint portion 12, step main body 13 and linkage unit.Linkage unit comprises first attaching parts 14 and second attaching parts 15.The step device 10 of the utility model also comprises: first bearing pin 16, second bearing pin 17, croisillon de joint homocinetique 18 and the 4th bearing pin 19.The bottom of step main body 13 comprises diamond tread design step tread plate 20.
The vehicle frame of first joint portion 11 and second joint portion 12 and vehicle is fixed in vehicle through modes such as laser welding, rivet are fixing.Step main body 13 is fixed in first joint portion 11 pivotly through first bearing pin 16.One end of first attaching parts 14 is fixed in second joint portion 12 pivotly through second bearing pin 17; The other end of first attaching parts 14 is through an end of croisillon de joint homocinetique 18 connections second attaching parts 15, and the other end of second attaching parts 15 is connected on the step main body 13 through the 4th bearing pin 19.In other embodiments, also can fix this step device 10 through the permanent seat of captiveing joint with the vehicle frame of vehicle, at this moment, first joint portion 11 and second joint portion 12 are arranged on this permanent seat.
Wherein, step main body 13 is when 16 swings of first bearing pin, and step main body 13, is launched or folded to realize step main body 13 around 17 swings of second bearing pin through second attaching parts, 15 drives, first attaching parts 14.
See also Fig. 2, vehicle 30 comprises vehicle frame 31.The step device 10 of present embodiment is fixed in the lower end in left side of the vehicle frame 31 of vehicle 30.When opening step device 10, step main body 13 cws swings, and drive second attaching parts 15 and clockwise rotate, second attaching parts 15 drives first attaching parts 14 and rotates counterclockwise.
Please consult Fig. 1 and Fig. 2 simultaneously, the part of the vehicle frame 31 between first attaching parts 14, second attaching parts 15, step main body 13 and first joint portion 11 and second joint portion 12 constitutes a four-bar mechanism.Wherein, vehicle frame 31 is as frame, and first attaching parts 14 and step main body 13 are as side link, and second attaching parts 15 is as connecting rod.
If one of them side link of four-bar mechanism is a driving link, another side link, driven member can occur and can not rotate " dieback " phenomenon when connecting rod and driven member conllinear as driven member, and mechanism realizes auto-lock function.
Please further consult Fig. 1 and Fig. 2, when this four-bar mechanism launched, step main body 13 drew a straight line perpendicular to vehicle frame 31, the first attaching partss 14 and second attaching parts 15, and step main body 13, vehicle frame 31 have constituted a right-angled triangle with this straight line.The part of step main body 13 is as first square edge of this right-angled triangle, and the part of vehicle frame 31 is as this right-angled triangle second square edge, and this straight line is as this hypotenuse of a right triangle.Again because in this four-bar mechanism; Step main body 13 is as driving link, and first attaching parts 14 is as driven member, connecting rod second attaching parts 15 and driven member first attaching parts 14 conllinear; So; Under the stressed situation of step main body 13, driven member first attaching parts 14 can't rotate, and this four-bar mechanism is realized self-locking.Like this, step device 10 is will be more stable reliable, and the vehicle crew vehicle 30 time, utilizes the auto-lock function of four-bar mechanism up and down, and step device 10 is firmly stable more.
See also Fig. 3 and Fig. 4, Fig. 3 is the schematic perspective view under step device 10 folded states among Fig. 1, and Fig. 4 is the step device 10 folding scheme drawings that are fixed in vehicle 30 among Fig. 1.When packing up step device 10, step main body 13 counter-clockwise swings, and drive second attaching parts 15 and rotate counterclockwise, second attaching parts 15 drives first attaching parts 14 and clockwise rotates.
The utility model step device 10 also comprises a plurality of spring pins.One end of the bearing pin of the utility model step device 10 is a sleeve end, and the other end is an axle head.Spring pin (not shown) correspondingly is installed on the axle head of first bearing pin 16, second bearing pin 17, croisillon de joint homocinetique 18 and the 4th bearing pin 19 respectively; With removably fixing first bearing pin 16, second bearing pin 17, croisillon de joint homocinetique 18 and the 4th bearing pin 19, make them be difficult for dropping.In another embodiment, spring pin can wait other bearing pin to replace with the β pin.
The utility model step device 10 also comprises set collar (not shown) and attaching parts (not shown).Set collar (not shown) is fixedly set on the vehicle 30.Attaching parts (not shown) can be flexible connecting members such as flexible steel wire, flexible iron wire or wear-resisting rope.When step device 10 folds, can utilize set collar (not shown) and attaching parts (not shown) to make step main body 13 fixing.Attaching parts (not shown) passes set collar (not shown), and an end of attaching parts (not shown) connects the sleeve end of the 4th bearing pin 19, and the other end connects the spring pin of the 4th bearing pin 19.In other embodiments, attaching parts (not shown) is connected with step main body 13, tighten step main body 13.Fixedly the mode of step main body 13 system of not limiting can be established as the case may be.
First attaching parts 14 and second attaching parts 15 are rigid plate bodys such as steel plate or aluminum alloy.
The afterbody of diamond tread design step tread plate 20 is provided with anti-skidding empennage.The vehicle crew up and down vehicle 30 time, steps down in diamond tread design step tread plate 20 and is not easy to skid.
The utility model further provides a kind of engineering machinery vehicle that comprises above-mentioned step device.The engineering machinery vehicle of the utility model preferred embodiment is a hoisting crane.
By the way; Engineering machinery vehicle of the utility model and step device thereof can make that step stretches when in use; Trample the auto-lock function that can utilize four bar structures under the stressed situation and keep fixing, reliable and stable, in idle, can shrink; Make things convenient for vehicle ', avoid vehicle to link and collide with other incoherent objects in the process of moving.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (7)
1. a step device is used for operator's vehicle up and down, it is characterized in that said step device comprises:
First joint portion and second joint portion, captive joint with the vehicle frame of said vehicle with said second joint portion in said first joint portion;
The step main body, said step main body is fixed in said first joint portion pivotly through first bearing pin;
Linkage unit; Said linkage unit comprises first attaching parts and second attaching parts; One end of said first attaching parts is fixed in said second joint portion pivotly through second bearing pin; The other end of said first attaching parts connects an end of said second attaching parts through croisillon de joint homocinetique, and the other end of said second attaching parts is connected on the said step main body through the 4th bearing pin;
Wherein, when said step main body was swung around said first bearing pin, said step main body drove said first attaching parts through said second attaching parts and swings around said second bearing pin, launched or folded to realize said step main body.
2. step device according to claim 1 is characterized in that, the part of the said vehicle frame between said first attaching parts, said second attaching parts, said step main body and said first joint portion and said second joint portion constitutes four-bar mechanism.
3. step device according to claim 2; It is characterized in that; When said step main body was launched, said step main body was perpendicular to said vehicle frame, and said first attaching parts and said second attaching parts draw a straight line; Said straight line, said step main body and said vehicle frame form right angle triangle, said straight line is as the longest edge of said right-angled triangle.
4. step device according to claim 1; It is characterized in that; Said step device also comprises a plurality of spring pins; The corresponding respectively axle head that is installed on said first bearing pin, said second bearing pin, said croisillon de joint homocinetique and said the 4th bearing pin of said a plurality of spring pin is with removably fixing said first bearing pin, said second bearing pin, said croisillon de joint homocinetique and said the 4th bearing pin.
5. step device according to claim 1 is characterized in that, said first attaching parts and said second attaching parts are steel plate or aluminum alloy.
6. step device according to claim 1 is characterized in that the bottom of said step main body is provided with the diamond tread design step tread plate, and the afterbody of said diamond tread design step tread plate is provided with anti-skidding empennage.
7. an engineering machinery vehicle is characterized in that, said engineering machinery vehicle comprises according to any described step device of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200335834U CN202480993U (en) | 2012-02-02 | 2012-02-02 | Step ladder device and engineering machinery vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200335834U CN202480993U (en) | 2012-02-02 | 2012-02-02 | Step ladder device and engineering machinery vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202480993U true CN202480993U (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200335834U Expired - Fee Related CN202480993U (en) | 2012-02-02 | 2012-02-02 | Step ladder device and engineering machinery vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202480993U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231681A (en) * | 2013-04-17 | 2013-08-07 | 安徽江淮汽车股份有限公司 | Locking mechanism, connecting mechanism, connecting assembly and working method of locking mechanism |
| CN107610876A (en) * | 2017-09-03 | 2018-01-19 | 王秀兰 | It is a kind of can be with the magnetic binding clasp of self-locking |
| CN107634678A (en) * | 2017-09-02 | 2018-01-26 | 王秀兰 | It is a kind of can be in the magnetic binding clasp of open mode self-locking |
-
2012
- 2012-02-02 CN CN2012200335834U patent/CN202480993U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231681A (en) * | 2013-04-17 | 2013-08-07 | 安徽江淮汽车股份有限公司 | Locking mechanism, connecting mechanism, connecting assembly and working method of locking mechanism |
| CN103231681B (en) * | 2013-04-17 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Locking mechanism, connecting mechanism, connecting assembly and working method of locking mechanism |
| CN107634678A (en) * | 2017-09-02 | 2018-01-26 | 王秀兰 | It is a kind of can be in the magnetic binding clasp of open mode self-locking |
| CN107610876A (en) * | 2017-09-03 | 2018-01-19 | 王秀兰 | It is a kind of can be with the magnetic binding clasp of self-locking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |