CN204436250U - A kind of derrick lower body ladder cage-protecting device - Google Patents
A kind of derrick lower body ladder cage-protecting device Download PDFInfo
- Publication number
- CN204436250U CN204436250U CN201420845956.7U CN201420845956U CN204436250U CN 204436250 U CN204436250 U CN 204436250U CN 201420845956 U CN201420845956 U CN 201420845956U CN 204436250 U CN204436250 U CN 204436250U
- Authority
- CN
- China
- Prior art keywords
- leading screw
- derrick
- guard ring
- connecting rod
- lower body
- 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 kind of derrick lower body ladder cage-protecting device, comprise guard ring, guard ring two ends are connected on vertical beam, be connected with chain by longeron between upper and lower guard ring, the two ends of middle guard ring are provided with otic placode, are connected to vertical beam upper ear plate and lean out outside vertical beam, connecting rod is provided with between two otic placodes, connecting rod is connected with one end of leading screw connecting axle, and two vertical beams are fixedly connected with derrick lower body ladder two heel post, the other end of leading screw connecting axle and derrick column Structure deformation.The utility model have structure simple, easy to use, save the feature such as manpower, simultaneously this cage-protecting device have collapsible, can with the feature of derrick lifting freedom retractable.Alleviate labor intensity of operating staff, ensure the safety of cage ladder in transportation.
Description
Technical field
The utility model relates to oil-well drilling equipment, particularly a kind of derrick lower body ladder cage-protecting device.
Background technology
Derrick lower body ladder cage-protecting device is used for protecting the personal safety of staff when staff climbs derrick, prevents the generation of major accident.The cage ladder of current use is all fold by manpower, but when cage ladder is longer, when conducting oneself with dignity larger, relies on manpower to fold the labour intensity that can increase operating personnel.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of cage ladder automatically opened with derrick lifting and fold.During derrick lifting, cage ladder protects cage and relies on deadweight slowly to open; When derrick is regained, rely on lever principle drive to protect cage and be slowly retracted to final position.
For achieving the above object, the utility model realizes by the following technical solutions:
A kind of derrick lower body ladder cage-protecting device, comprise guard ring, guard ring two ends are connected on vertical beam, be connected with chain by longeron between upper and lower guard ring, the two ends of middle guard ring are provided with otic placode, are connected to vertical beam upper ear plate and lean out outside vertical beam, connecting rod is provided with between two otic placodes, connecting rod is connected with one end of leading screw connecting axle, and two vertical beams are fixedly connected with derrick lower body ladder two heel post, the other end of leading screw connecting axle and derrick column Structure deformation.
Described connecting rod is arranged in lug plate holes, and connecting rod two ends are provided with U-shaped block, and U-shaped block is arranged on outside otic placode, and connecting rod can rotate on otic placode.
Described leading screw connecting axle is made up of u shaped connector, locking nut, leading screw, roller, roller shaft, and wherein u shaped connector is connected with leading screw and spacing by locking nut, and roller is arranged on roller shaft, and roller shaft is connected to the top of leading screw.
Described leading screw connecting axle is connected by the connecting rod between bolt with otic placode.
Compared with prior art, the beneficial effects of the utility model are:
The utility model have structure simple, easy to use, save the feature such as manpower, simultaneously this cage-protecting device have collapsible, can with the feature of derrick lifting freedom retractable.Alleviate labor intensity of operating staff, ensure the safety of cage ladder in transportation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the utility model leading screw connecting axle is connected with connecting rod.
Fig. 3 is the structural representation of the utility model leading screw connecting axle.
In figure: guard ring 6-U type block 7-leading screw connecting axle 8-connecting rod 9-otic placode 10-U type joint 11-locking nut 12-leading screw 13-roller 14-roller shaft 15-derrick lower body ladder 16-bolt in the middle of 1-chain 2-vertical beam 3-guard ring 4-longeron 5-
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further illustrated:
As shown in Figure 1, a kind of derrick lower body ladder cage-protecting device, comprise guard ring 3, guard ring 3 two ends are connected on vertical beam 2, are connected between upper and lower guard ring 3 by longeron 4 with chain 1, and the two ends of middle guard ring 5 are provided with otic placode 9, being connected to vertical beam 2 upper ear plate 9 leans out outside vertical beam 3, be provided with connecting rod 8 between two otic placodes 9, connecting rod 8 is connected with one end of leading screw connecting axle 7, and two vertical beams 2 are welded and fixed with derrick lower body ladder 15 liang of heel posts.
As shown in Figure 2, the connecting rod 8 between otic placode 9 is arranged in lug plate holes, and connecting rod 8 two ends are provided with U-shaped block 6, and U-shaped block 6 is arranged on outside otic placode 9, and connecting rod 8 can rotate on otic placode 9, and leading screw connecting axle 7 is connected with connecting rod 8 by bolt 16.
As shown in Figure 3, leading screw connecting axle is made up of u shaped connector, locking nut, leading screw, roller, roller shaft, the threaded one end of leading screw 12 and u shaped connector 10 internal thread hole are threaded connection, and lock spacing by locking nut 11, punch in leading screw 12 polished rod one end, be connected by roller shaft 14 with roller 13, wherein u shaped connector is connected with leading screw and spacing by locking nut.
When above-mentioned cage-protecting device welds with derrick lower body ladder two heel post, beam welding some baffle plates, during for ensureing that guard ring is opened, being in level.Protect when cage is arranged on derrick ladder and need adjusting screw connecting axle angle and length, to protect after cage is arranged on derrick lower body ladder, by rotating threaded shaft adjusting screw connecting axle length, to make to protect when cage is in retracted state roller just with derrick upper body heel post plane tangent, after adjusting scroll wheel positions, tighten locking nut, now connecting rod has certain anglec of rotation, U-shaped for connecting rod both sides piece is welded in respectively on the otic placode of middle guard ring both sides, connecting rod and leading screw connecting axle are completely fixed.Leading screw connecting axle hoisting and getting control back and protect cage and moved namely by derrick.
During derrick lifting, roller rolls along derrick upper body leg surface, and because cage ladder is fixed with the spacing of derrick, leading screw does not rotate, and protects cage and is still in retracted state.When after derrick lifting certain distance, roller and derrick upper body depart from, and protect cage and rely on deadweight to open, be opened to guard ring when being horizontal, guard ring otic placode contacts with vertical beam overhead gage, guard ring is horizontal and does not continue decline.When regaining derrick, along with derrick upper body declines, bottom derrick upper body and roller contact, and press against leading screw and connect roller one end and decline together, leading screw drivening rod rotates together, be connected otic placode one end to tilt with connecting rod, drive is protected cage and is slowly regained, after leading screw rotates to an angle, roller contacts with derrick upper body leg surface and rolls at leg surface, leading screw also no longer rotates, and now, protects cage and is recovered to assigned address.
Be only general principle of the present utility model above, not impose any restrictions the utility model, every foundation the utility model carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (4)
1. a derrick lower body ladder cage-protecting device, it is characterized in that, comprise guard ring, guard ring two ends are connected on vertical beam, are connected between upper and lower guard ring by longeron with chain, the two ends of middle guard ring are provided with otic placode, being connected to vertical beam upper ear plate leans out outside vertical beam, is provided with connecting rod between two otic placodes, and connecting rod is connected with one end of leading screw connecting axle, two vertical beams are fixedly connected with derrick lower body ladder two heel post, the other end of leading screw connecting axle and derrick column Structure deformation.
2. a kind of derrick lower body ladder cage-protecting device according to claim 1, it is characterized in that, described connecting rod is arranged in lug plate holes, and connecting rod two ends are provided with U-shaped block, and U-shaped block is arranged on outside otic placode, and connecting rod can rotate on otic placode.
3. a kind of derrick lower body ladder cage-protecting device according to claim 1, it is characterized in that, described leading screw connecting axle is made up of u shaped connector, locking nut, leading screw, roller, roller shaft, wherein u shaped connector is connected with leading screw and spacing by locking nut, roller is arranged on roller shaft, and roller shaft is connected to the top of leading screw.
4. a kind of derrick lower body ladder cage-protecting device according to claim 1, it is characterized in that, described leading screw connecting axle is connected by the connecting rod between bolt with otic placode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845956.7U CN204436250U (en) | 2014-12-26 | 2014-12-26 | A kind of derrick lower body ladder cage-protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845956.7U CN204436250U (en) | 2014-12-26 | 2014-12-26 | A kind of derrick lower body ladder cage-protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436250U true CN204436250U (en) | 2015-07-01 |
Family
ID=53604128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420845956.7U Expired - Fee Related CN204436250U (en) | 2014-12-26 | 2014-12-26 | A kind of derrick lower body ladder cage-protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019544A (en) * | 2015-07-28 | 2015-11-04 | 昆明普尔顿环保科技股份有限公司 | Plastic bias inspection well |
| CN107299770A (en) * | 2017-06-13 | 2017-10-27 | 林再颐 | A kind of guard ring location structure of core tube construction safe escape device |
-
2014
- 2014-12-26 CN CN201420845956.7U patent/CN204436250U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019544A (en) * | 2015-07-28 | 2015-11-04 | 昆明普尔顿环保科技股份有限公司 | Plastic bias inspection well |
| CN107299770A (en) * | 2017-06-13 | 2017-10-27 | 林再颐 | A kind of guard ring location structure of core tube construction safe escape device |
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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: 20150701 Termination date: 20211226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |