CN2490309Y - Safety protection pin for elevator - Google Patents
Safety protection pin for elevator Download PDFInfo
- Publication number
- CN2490309Y CN2490309Y CN 01243866 CN01243866U CN2490309Y CN 2490309 Y CN2490309 Y CN 2490309Y CN 01243866 CN01243866 CN 01243866 CN 01243866 U CN01243866 U CN 01243866U CN 2490309 Y CN2490309 Y CN 2490309Y
- Authority
- CN
- China
- Prior art keywords
- free bearing
- pin
- elevator
- safeguard protection
- lower platen
- 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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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
A safety protection pin for elevator used in well drilling and operation is provided, wherein the top surfaces of a becket bridle and a pin are respectively welded with the upper and lower surfaces on the left of the upper and lower pressing plates. An upper hinge base is welded with the lower surface in the middle of the upper pressing plate, and the left end face of the lower pressing plate is welded with the lower right side of a lower hinge base, and the upper end face of a guard plate hook is welded with the bottom face of the lower hinge base. The upper and lower hinge bases are both of U-shaped structure with a round through hole in the center. A hinge shaft is arranged in the through hole and sleeved with an A-shaped spring, and both ends of the hinge shaft are riveted on the upper hinge base to be formed into a whole. The pin can effectively prevent the elevator pin from falling off automatically during operation, avoid production accident, injuries and deaths of post workers, and have great social benefit.
Description
Novel a kind of drilling well, the operation elevator safety locking motion of relating to of this use particularly is a kind of elevator safeguard protection pin.
Drilling well at present, operation elevator pin are single pins that has becket bridle, in drilling well, when operation plays lower tubular column, in case meet the jam phenomenon, pin is under action of inertia, can scurry out automatically, cause suspension ring to deviate from from the elevator mouth, the work of another single-ring, the elevator single load bearing produces deflection, and pin is pulled out, causing tubing string to pound at well head smashes elevator, cause tubing string to be fallen in the well, cause down-hole accident, suspension ring are deviate from from the elevator mouth in addition, also easily the inside and outside pincers worker at shaft mouth operation is injured, heavy then jeopardize post workman's life.
The purpose of this utility model is exactly at above-mentioned weak point, designs a kind of elevator safeguard protection pin, and it is not only easy to operate, and safe and reliable.
The purpose of this utility model is achieved in that this elevator safeguard protection pin is by becket bridle; top board; last free bearing; pin; hinge axis; spring; following free bearing; lower platen; the backplate hook is formed; becket bridle; the pin top end face respectively with the left end of top board on; welding below; welding below last free bearing and the top board middle part; the left side of lower platen and following free bearing lower right sides welding; backplate hook upper surface and the welding of following free bearing bottom surface; free bearing is " U " shape structure up and down; there is a manhole centre; last free bearing is greater than following free bearing; free bearing is equipped with hinge axis in the hole; be with " people " font spring on the hinge axis; two pawls of " people " font spring are supporting; lower platen; the riveting of hinge axis two ends on the upper hinge seat, thereby constitute an integral body.
Becket bridle in the above-mentioned elevator safeguard protection pin is a circular configuration, and the centre is a through hole, so that the bolt rope sling.
Top board right-hand member in the above-mentioned elevator safeguard protection pin has a downward bending, and the lower platen right-hand member has a downward bending, or the single bending of upper and lower pressing plate right-hand member, perhaps is linear.
Backplate in the above-mentioned elevator safeguard protection pin has a semi arch at the gib head position, and cambered surface is relative with the pin face of cylinder.
Pin bottom in the above-mentioned elevator safeguard protection pin is truncated cone or is semicircle, so that insert in the elevator pin-and-hole.
Elevator safeguard protection pin according to such scheme is made can prevent effectively that pin is deviate from automatically in drilling well, the work operations, has guaranteed safety in production, has avoided production accident and post staff's injures and deaths, has very big social benefit and economic benefit.
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 is the utility model master TV structure schematic diagram.
Fig. 2 is that schematic diagram is installed and used at the utility model scene.
In the accompanying drawing, the 1st, becket bridle, the 2nd, top board, the 3rd, last free bearing; the 4th, pin, the 5th, hinge axis, the 6th, spring, the 7th, following free bearing; the 8th, lower platen, the 9th, backplate hook, the 10th, wire rope, the 11st, travelling block; the 12nd, hook, the 13rd, hanger, the 14th, suspension ring, the 15th, rope sling; the 16th, elevator safeguard protection pin, the 17th, elevator, the 18th, drilling rod (oil pipe); the 19th, well head, A are the becket bridle centre bores, and B is the elevator mouth.
In Fig. 1, becket bridle (1), pin (4) top end face respectively with the left end of top board (2) on, welding below, last free bearing (3) welding below top board (2) middle part, the left side of lower platen (8) and the welding of following free bearing (7) lower right sides, backplate hook (9) upper surface and the welding of following free bearing (7) bottom surface, last free bearing (3), following free bearing (7) is " U " shape structure, there is a manhole centre, last free bearing (3) is greater than following free bearing (7), hinge axis (5) is housed in the free bearing hole, be with herringbone spring (6) on the hinge axis (5), two pawls of herringbone spring (6) are supporting top board (2), lower platen (8), hinge axis (5) two ends riveting on last free bearing (3), thereby constitute an integral body.
In use; at first using rope sling (15) to pass becket bridle (1) connects together elevator safeguard protection pin (16) and suspension ring (14); drilling well; when operation plays bar (pipe) post; two suspension ring (14) are pushed in the elevator mouth (B) simultaneously; grasp top board (2); lower platen (8) inserts pin (4) in elevator (17) pin-and-hole; unclamp top board (2) lower platen (8); under the effect of " people " font spring (6); backplate hook (9) gib head position semi arch is relative with pin (4) face of cylinder; gib head is positioned at elevator mouth (B) top; when removing drilling rod (oil pipe) (18); when meeting jam suddenly; backplate hook (9) gib head hooks the last sublabial of elevator mouth (B), prevents that pin (4) from deviating from, thereby has guaranteed safety in production.
Claims (5)
1; a kind of elevator safeguard protection pin; by becket bridle; top board; last free bearing; pin; hinge axis; spring; following free bearing; lower platen; the backplate hook is formed; it is characterized in that: becket bridle; the pin top end face respectively with the left end of top board on; welding below; welding below last free bearing and the top board middle part; the left side of lower platen and following free bearing lower right sides welding; backplate hook upper surface and the welding of following free bearing bottom surface; on; following free bearing is " U " shape structure; there is a manhole centre; last free bearing is greater than following free bearing; free bearing is equipped with hinge axis in the hole; be with " people " font spring on the hinge axis; two pawls of " people " font spring are supporting; lower platen, the riveting of hinge axis two ends on last free bearing, thereby constitute an integral body.
2, elevator safeguard protection pin according to claim 1, it is characterized in that: becket bridle is an annular, and there is a manhole centre.
3, elevator safeguard protection pin according to claim 1 is characterized in that: the top board right-hand member has a upwards bending, and the lower platen right-hand member has a downward bending, or goes up the single bending of lower platen right-hand member, perhaps is linear.
4, elevator safeguard protection pin according to claim 1, it is characterized in that: backplate is hooked in the gib head position a semi arch, and cambered surface is relative with the pin face of cylinder.
5, elevator safeguard protection pin according to claim 1 is characterized in that: the pin bottom is a truncated cone or is semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01243866 CN2490309Y (en) | 2001-07-11 | 2001-07-11 | Safety protection pin for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01243866 CN2490309Y (en) | 2001-07-11 | 2001-07-11 | Safety protection pin for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490309Y true CN2490309Y (en) | 2002-05-08 |
Family
ID=33655398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01243866 Expired - Fee Related CN2490309Y (en) | 2001-07-11 | 2001-07-11 | Safety protection pin for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490309Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382818A (en) * | 2013-06-09 | 2013-11-06 | 巴州派特罗尔石油钻井技术服务有限公司 | Safety pin capable of preventing elevator from falling off |
| CN108999861A (en) * | 2018-10-15 | 2018-12-14 | 中石化石油工程技术服务有限公司 | The portable connecting bolt of drilling well Type B tong |
-
2001
- 2001-07-11 CN CN 01243866 patent/CN2490309Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382818A (en) * | 2013-06-09 | 2013-11-06 | 巴州派特罗尔石油钻井技术服务有限公司 | Safety pin capable of preventing elevator from falling off |
| CN108999861A (en) * | 2018-10-15 | 2018-12-14 | 中石化石油工程技术服务有限公司 | The portable connecting bolt of drilling well Type B tong |
| CN108999861B (en) * | 2018-10-15 | 2023-09-08 | 中石化石油工程技术服务有限公司 | Portable connecting bolt of B-shaped tongs for well drilling |
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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 |