CN2256030Y - Automatic mobile ladder for transportation - Google Patents
Automatic mobile ladder for transportation Download PDFInfo
- Publication number
- CN2256030Y CN2256030Y CN 96231625 CN96231625U CN2256030Y CN 2256030 Y CN2256030 Y CN 2256030Y CN 96231625 CN96231625 CN 96231625 CN 96231625 U CN96231625 U CN 96231625U CN 2256030 Y CN2256030 Y CN 2256030Y
- Authority
- CN
- China
- Prior art keywords
- spring
- ladder
- mobile ladder
- compression spring
- transportation
- 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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- Ladders (AREA)
Abstract
The utility model relates to an automatic mobile ladder for transportation. A spring balance box device is used, an original tension spring is changed into a compression spring, and the compression spring is loaded in the spring balance box. Thus, the service life of the compression spring is prolonged. The spring of the compression spring can be conveniently regulated through regulating a screw nut in the spring balance box, and thus, the force moment produced by the self weight of a movable ladder can be balanced. The utility model has the advantages of compact structure, convenient regulation, flexible operation and safe use, and can be used as the special-purpose equipment for the operating people to get on and off a tank car when a large-scale oil tank car is used for the storage and transportation of oil materials in a petrochemical plant and a petroleum bank.
Description
The utility model relate to a kind of be made on the railway loading and unloading tank deck industry personnel on, the special equipment of following tank car.
At present at petrochemical plant, places such as oil depot utilize the large oil tank car to store and transport oil plant, the operating personnel enters tank deck by the mobile ladder that is installed in the oil rack both sides and carries out Job Operations, behind the completed loading, the operating personnel withdraws from tank car, through mobile ladder, passes through pedal operation, mobile ladder automatically resets, thereby generally uses this special equipment.Get rusty easily outside because the automatic receipts of mobile ladder inboard ladder extension spring is exposed, can run into spring the operating personnel during by mobile ladder, not too safe again, the elastic force of its extension spring is adjusted cumbersome, thereby in use has the defective of these several respects.
The purpose of this utility model just is to provide a kind of new type auto resetting means, and its compact conformation is easy to adjust, flexible operation, the Special Automatic mobile ladder of storing safe in utilization.
The utility model stores and transports Special Automatic mobile ladder and mainly is made up of structures such as column, ladder body, spring balancing case, guardrail, ratchet mechanism and little steps.
Below in conjunction with accompanying drawing the utility model being stored and transported Special Automatic mobile ladder is described in detail.
Fig. 1 is the Special Automatic mobile ladder schematic perspective view of storing.
Fig. 2 is the Special Automatic mobile ladder of the storing lateral view that resets.
Fig. 3 is the Special Automatic mobile ladder spring balancing case sectional drawing of storing.
Fig. 4 is the Special Automatic mobile ladder ratchet mechanism schematic diagram of storing.
Two root posts (3) that store and transport Special Automatic mobile ladder are fixed on the base plate (10), two handrails (2) of being convenient to the upper and lower ladder of operating personnel and being provided with are equipped with in column (3) top, ladder body (6) one ends have two axis holes to install in the body bolster (8) that is connected between two root posts (3), and can in 90 °, freely rotate, the other end is equipped with two rubber wheels (5), when putting down, ladder is bearing on the tank car by rubber wheel (5), can prevent the collision between the metal, anti-skidding for safety, the terraced bar (7) on the ladder body (6) is a zigzag.
Spring balancing case (1) is the mobile ladder automatic reset device, its casing is the garden tubular structure, form by outside locating shaft (14) and internal construction, it is characterized in that the outer locating shaft (14) of spring balancing case (1) links with hinge mode and column (3), pull bar (15) in the spring balancing case (1), one links with hinge mode and ladder body (6), the other end has two nuts (18) to be pressed on the spring shim (17), adjusting nut (18) can regulating spring tandem-driving bogie (1) in the elastic force of compression spring (16), produced and moment with balance ladder body (6) deadweight, so not only safe and reliable, and improved application life of compression spring (16), make the mobile ladder folding and unfolding flexible.
Guardrail (4) is made up of two joints, the connection place connects with the hinge mode, two ends also connect with the hinge mode in addition, a fulcrum is fixed on the column (3), another fulcrum is fixed on the ladder body (6), for strengthening the working strength of guardrail (4), guardrail (4) adopts tubular structure to make, and in use plays the security protection effect.
Ratchet mechanism (19) is by ratchet (20); extension spring (21); little step compositions such as (11) one cover ratchet mode is operated resetting means; ratchet (20) links with one side of ladder body (6) one ends; penetrate in the lump in the body bolster (8); and can rotate synchronously with ladder body (6); the fulcrum of its ratchet mechanism (19) is fixed on the little axle (12) of pedal support (9) one sides; side at ratchet (20); being separately fixed at extension spring (21) on base plate (10) and ratchet mechanism (19) ratchet by a two strains the pawl head of ratchet mechanism (19) all the time and is clamped on the ratchet (20); ratchet (20) can only be rotated to a direction; go up horn shape iron plate of welding at pedal support (9); for last; the pedal of following ladder has been protected ratchet mechanism (19) again.
The utility model stores and transports Special Automatic mobile ladder owing to adopted spring balancing case (1) device, change extension spring and be the compression spring, and in the spring balancing case (1) of packing into, by the nut (18) in the regulating spring tandem-driving bogie (1) can more convenient adjustment compression spring (16) elastic force, the moment that is produced with balance ladder body (6) deadweight, improved the application life of spring simultaneously, and produced and make mobile ladder have folding and unfolding good result flexibly.
Base plate (10) is fixed on the position of oil rack, regulate the moment of compression spring (16), be slightly larger than the moment of ladder body (6), make ladder body (6) that a trend of rotating forward be arranged all the time, because ratchet (20) can rotate with ladder body (6), the operating personnel stands on the horn shape iron plate on the pedal support (9), hand get a grip on the rail (2), moving ladder body (6) is touched in another have gentle hands, can make ladder body (6) rotate to suitable angle like this around body bolster (8), be that rubber wheel (5) is bearing on the tank car, at this moment guardrail (4) also can putting down and open automatically with ladder body (6), meanwhile under the effect of ratchet mechanism (19) extension spring (21), make ratchet chucking ratchet (20), ladder body (6) can not reset.The operating personnel enters the operation of tank car jacking row by mobile ladder, the operating personnel returns mobile ladder after the completed loading, go up descending stair from horn shape iron plate, when tramping with one's feet when operation is gone up in little step (11), the ratchet of ratchet mechanism (19) leaves ratchet (20), ladder body (6) and guardrail (4) automatically reset under the effect of compression spring (16).In order to make ladder body (6) not direct collision column (3) in reseting procedure, two rubber wheels (13) are installed again in suitable place, ladder body (6) both sides.Store and transport Special Automatic mobile ladder and have compact conformation, easy to adjust, flexible operation, characteristics safe in utilization are widely used in petrochemical plant, and oil depot is made for the special equipment of the upper and lower tank car of industry personnel when using large oil tank car storing oil plant.
Claims (4)
1, the Special Automatic mobile ladder of a kind of storing is made up of column (3), ladder body (6), spring balancing case (1), guardrail (4), ratchet mechanism (19) and little step (11), the locating shaft (14) of its feature outside spring balancing case (1) links with hinge mode and column (3), pull bar (15) in the spring balancing case (1), one links with hinge mode and ladder body (6), the other end has two nuts (18) to be pressed on the spring shim (17), and adjusting nut (18) can the interior elastic force that compresses spring (16) of regulating spring tandem-driving bogie (1).
2, mobile ladder according to claim 1, its feature terraced bar (7) on ladder body (6) is a zigzag.
3, mobile ladder according to claim 1, its feature adopts tubular structure to make at guardrail (4).
4, mobile ladder according to claim 1, its feature is on the little axle (12) of fulcrum in pedal support (9) one sides of ratchet mechanism (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96231625 CN2256030Y (en) | 1996-04-11 | 1996-04-11 | Automatic mobile ladder for transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96231625 CN2256030Y (en) | 1996-04-11 | 1996-04-11 | Automatic mobile ladder for transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256030Y true CN2256030Y (en) | 1997-06-11 |
Family
ID=33908754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96231625 Expired - Fee Related CN2256030Y (en) | 1996-04-11 | 1996-04-11 | Automatic mobile ladder for transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256030Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634879A (en) * | 2020-06-09 | 2020-09-08 | 福州市聚泰环境科技有限公司 | Gleditsia sinensis and acidified oil handling system |
-
1996
- 1996-04-11 CN CN 96231625 patent/CN2256030Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634879A (en) * | 2020-06-09 | 2020-09-08 | 福州市聚泰环境科技有限公司 | Gleditsia sinensis and acidified oil handling system |
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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 |