CN203334981U - Safety pin capable of preventing lift sub from dropping - Google Patents
Safety pin capable of preventing lift sub from dropping Download PDFInfo
- Publication number
- CN203334981U CN203334981U CN2013203613501U CN201320361350U CN203334981U CN 203334981 U CN203334981 U CN 203334981U CN 2013203613501 U CN2013203613501 U CN 2013203613501U CN 201320361350 U CN201320361350 U CN 201320361350U CN 203334981 U CN203334981 U CN 203334981U
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- CN
- China
- Prior art keywords
- pin
- handle
- lift sub
- elevator
- dropping
- 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
The utility model discloses a safety pin capable of preventing a lift sub from dropping. The safety pin capable of preventing the lift sub from dropping is characterized in that a hinge base is welded below a handle of a lift sub pin rod, a pin hole is formed in the hinge base, a pin hole is also formed in the front end of a handle of a dropping prevention hook, a pin penetrates through the two pin holes to enable the two pin holes to be connected together, an upper supporting base and a lower supporting base are welded between the handle of the lift sub pin rod and the handle of the dropping prevention hook, a reset spring is added between the lower supporting base and the upper supporting base 7, and a safety rope ring is welded to the front end of the handle of the lift sub pin rod. When a lower pipe pillar is lifted, the handle is held, the reset spring is compressed when the handle of the dropping prevention hook is pinched, the dropping prevention hook is opened, the lift sub pin rod is inserted into an eyelet of a lift sub lug, the handle of the dropping prevention hook is released, the dropping prevention hook and the lift sub pin rod are closed under the effect of the reset spring, the lift sub pin rod will not come off an inserting hole of the lift sub lug due to the function of the dropping prevention hook when the lift sub is turned over purposely, and therefore the effect that the lift sub will not come off a hanging ring so as to crash people or equipment is ensured.
Description
Technical field
The utility model relates to when the petroleum drilling well workover plays lower tubular column in the eyelet injected on the elevator ear, prevents other secondary accident that elevator comes off and causes from suspension ring.
Background technology
The petroleum drilling well workover make a trip the hollow tourist bus in the upper and lower process in derrick space, because of reasons such as swings, can touch on rope in being suspended to the derrick space and some object or hang over suspension ring while braking suddenly in just likely upset of elevator, now on-the-spot straight-bar elevator pin commonly used will drop out from the hole of elevator hanger, the hanger of elevator both sides is thrown off from suspension ring one side, cause elevator to be pounded to rig floor from falling in the air, injure personnel or equipment etc., have great potential safety hazard.
Summary of the invention
Have potential safety hazard for the current straight-bar elevator pin used in scene, the purpose of this utility model has aimed to provide a kind of safety pin that prevents that elevator from coming off from suspension ring.The safety pin is taked self-lock mechanism, guarantees elevator pin in the situation that the elevator upset can not come off yet, and guarantees that elevator is not shed to drilling floor surface and hurts sb.'s feelings from suspension ring.
The purpose of this utility model completes like this:
The anti-elevator safety pin that comes off mainly is comprised of elevator pin rod, mousing-hook, pin, hinge seat, lower support seat, back-moving spring, upper support seat, safe becket bridle.Hinge seat is welded under the handle of elevator pin rod, have pin-and-hole on hinge seat, the handle front end of mousing-hook also has pin-and-hole, piercing into pin in two pin-and-holes links together, respectively be welded with upper support seat and lower support seat between the handle of elevator pin rod and the handle of mousing-hook, be added with back-moving spring between lower support seat and upper support seat, the handle front end of elevator pin rod is welded with safe becket bridle.
The beneficial effect of advantage of the present utility model and generation is:
1, the utility model adopt the assembling of conventional part, simple in structure, can easily process according to various elevator sizes, cost is low, have advantages of generally and use.
2, because adopting self-lock mechanism, guarantee elevator pin in the situation that the elevator upset can not come off, guarantee that elevator is not shed to drilling floor surface and hurts sb.'s feelings from suspension ring.
The accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
The specific embodiment
As shown in Figure 1, a kind of anti-elevator comes off safety pin mainly by elevator pin rod 1, mousing-hook 2, pin 3, hinge seat 4, lower support seat 5, back-moving spring 6, upper support seat 7, safe becket bridle 8 forms, hinge seat 4 is welded under the handle of elevator pin rod 1, have pin-and-hole on hinge seat 4, the handle front end of mousing-hook 2 also has pin-and-hole, piercing into pin 3 in two pin-and-holes links together, respectively be welded with upper support seat 7 and lower support seat 5 between the handle of the handle of elevator pin rod 1 and mousing-hook 2, be added with back-moving spring 6 between lower support seat 5 and upper support seat 7, the handle front end of elevator pin rod 1 is welded with safe becket bridle 8.
Hold handle while playing lower tubular column, while pinching mousing-hook handle 2, back-moving spring 6 is compressed, mousing-hook 2 is opened, unclamping the handle of mousing-hook 2 in the eyelet of elevator pin rod 1 reeve elevator ear, mousing-hook 2 and elevator pin rod 1 place's closure under the effect of back-moving spring 6, when elevator overturns for some reason, because the effect of mousing-hook 2 is arranged, elevator pin rod 1 can not come off from the jack of elevator ear, under the assurance elevator can not come off from suspension ring, does not pound people and the equipment of injuring.Fastened the elevator pin safety rope in becket bridle 8 and tied up on suspension ring, prevented from that it from coming off to hurt sb.'s feelings.Hold handle while getting elevator pin rod 1, while pinching mousing-hook handle 2, back-moving spring 6 is compressed, and mousing-hook 2 is opened, and elevator pin rod 1 is extracted out and both completed once-through operation from the eyelet of elevator ear.
Claims (1)
1. an anti-elevator comes off safety pin mainly by elevator pin rod (1), mousing-hook (2), pin (3), hinge seat (4), lower support seat (5), back-moving spring (6), upper support seat (7), safe becket bridle (8) forms, it is characterized in that hinge seat (4) is welded under the handle of elevator pin rod (1), hinge seat has pin-and-hole on (4), the handle front end of mousing-hook (2) also has pin-and-hole, piercing into pin (3) in two pin-and-holes links together, respectively be welded with upper support seat (7) and lower support seat (5) between the handle of the handle of elevator pin rod (1) and mousing-hook (2), be added with back-moving spring (6) between lower support seat (5) and upper support seat (7), the handle front end of elevator pin rod (1) is welded with safe becket bridle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203613501U CN203334981U (en) | 2013-06-09 | 2013-06-09 | Safety pin capable of preventing lift sub from dropping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203613501U CN203334981U (en) | 2013-06-09 | 2013-06-09 | Safety pin capable of preventing lift sub from dropping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203334981U true CN203334981U (en) | 2013-12-11 |
Family
ID=49703659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203613501U Expired - Fee Related CN203334981U (en) | 2013-06-09 | 2013-06-09 | Safety pin capable of preventing lift sub from dropping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203334981U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-06-09 CN CN2013203613501U patent/CN203334981U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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: 20131211 Termination date: 20160609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |