CN200961456Y - Elevator self-locking device for sucking rod - Google Patents
Elevator self-locking device for sucking rod Download PDFInfo
- Publication number
- CN200961456Y CN200961456Y CN 200620010276 CN200620010276U CN200961456Y CN 200961456 Y CN200961456 Y CN 200961456Y CN 200620010276 CN200620010276 CN 200620010276 CN 200620010276 U CN200620010276 U CN 200620010276U CN 200961456 Y CN200961456 Y CN 200961456Y
- Authority
- CN
- China
- Prior art keywords
- fastener
- turning block
- pulling sleeve
- rotating pin
- another market
- 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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- Load-Engaging Elements For Cranes (AREA)
Abstract
A sucker rod lift sub automatic locking device comprises a pulling sleeve, an offsetting spring, a rotating pin, a turning block, a bolt, and a fastener, wherein the turning block is arranged in a ring-shaped groove in the fastener, the offsetting spring is sleeved on the rotating pin which is crossed into the pulling sleeve, the right screw thread of the rotating pin is screwed into the turning block, the bolt is inserted into the rotating pin and the turning block, and the right end of the pulling sleeve is stretched into the fastener. When in use, the sucker rob is located in the fastener, the pulling sleeve is pulled out of the fastener, the offsetting spring is compressed, then the pulling sleeve is rotated to drive the rotating pin, the turning block, and the bolt rotating simultaneously, the turning block closes the opening of the fastener, the pulling sleeve reaches a side hole of the fastener, the right end of the pulling sleeve is deepened into the fastener under the action of the offsetting spring to lock the turning block, and the turning block closes the opening of the fastener all the time, which can effectively prevent the sucker rob releasing from the opening of the fastener, thereby prevents workers from injury and guarantees safe operations.
Description
One, technical field
The utility model is a kind of oilfield oil well power tool, particularly a kind of rod elevator self-locking device.
Two, background technology
Existing rod elevator does not have anti-drop device, and when promoting sucker rod, sucker rod comes off from insertion groove easily, causes security incident, and the personnel that cause injure.
Three, summary of the invention
The purpose of this utility model designs a kind of rod elevator self-locking device, makes its reliable operation, comes off when preventing to promote sucker rod, avoids the operator to come to harm, and guarantees safety operation.
The purpose of this utility model be achieved in that by pull out cover, back-moving spring, ship and resell on another market, switch block, latch, card body form, switch block is placed in the cannelure of card body, on back-moving spring is sleeved on and ships and resell on another market, ship and resell on another market to penetrate and pull out in the cover, the right-hand member screw thread of shipping and reselling on another market is screwed in the switch block, latch pierces into and ships and resell on another market, in the switch block, the right-hand member that pulls out cover advances in the card body deeply.
The beneficial effects of the utility model are: after the right-hand member that pulls out cover advances in the card body deeply, make ship and resell on another market, switch block can not rotate on circumference, switch block is sealed the breach of card body all the time, can prevent effectively that sucker rod from coming off from the indentation, there of card body, operator's safety personal injury accident can not occur.
Four, description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
Among the figure: the 1st, pull out cover, the 2nd, back-moving spring, the 3rd, ship and resell on another market, the 4th, switch block, the 5th, latch, the 6th, card body.Be the utility model by pull out cover 1, back-moving spring 2, ship and resell on another market 3, switch block 4, latch 5, card body 6 form, switch block 4 is placed in the cannelure of card body 6, back-moving spring 2 is sleeved on ships and resell on another market on 3, ship and resell on another market 3 penetrate pull out the cover 1 in, 3 the right-hand member screw thread of shipping and reselling on another market is screwed into 4 li of switch blocks, latch 5 pierces into and ships and resell on another market 3,4 li of switch blocks, and the right-hand member that pulls out cover 1 advances in the card body 6 deeply.
During use, sucker rod be in the card body in, will pull out cover 1 and extract in the body from card, back-moving spring 2 by compression at this moment, cover 1 is pulled out in rotation, makes and ships and resell on another market 3, switch block 4, latch 5 together rotate, and switch block 4 is sealed the breach of card body 6, pull out cover 1 side opening place to the Dacca body, under the effect of back-moving spring 2, the right-hand member that pulls out cover 1 advances in the card body 6 deeply, thereby pins switch block 4, switch block 4 is sealed the breach of card body 6 all the time, can prevent effectively that sucker rod from coming off from the indentation, there of card body.
Claims (1)
1, a kind of rod elevator self-locking device, by pull out cover (1), back-moving spring (2), ship and resell on another market (3), switch block (4), latch (5), card body (6) is formed, it is characterized in that: switch block (4) is placed in the cannelure of card body (6), back-moving spring (2) is sleeved on ship and resell on another market (3), ship and resell on another market (3) penetrate and pull out in the cover (1), the right-hand member screw thread of (3) of shipping and reselling on another market is screwed into switch block (4) lining, and latch (5) pierces into ship and resell on another market (3), switch block (4) lining, and the right-hand member that pulls out cover (1) advances in the card body (6) deeply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010276 CN200961456Y (en) | 2006-10-05 | 2006-10-05 | Elevator self-locking device for sucking rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010276 CN200961456Y (en) | 2006-10-05 | 2006-10-05 | Elevator self-locking device for sucking rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961456Y true CN200961456Y (en) | 2007-10-17 |
Family
ID=38797966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620010276 Expired - Fee Related CN200961456Y (en) | 2006-10-05 | 2006-10-05 | Elevator self-locking device for sucking rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961456Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939604A (en) * | 2018-09-21 | 2020-03-31 | 广达电脑股份有限公司 | Electronic device |
-
2006
- 2006-10-05 CN CN 200620010276 patent/CN200961456Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939604A (en) * | 2018-09-21 | 2020-03-31 | 广达电脑股份有限公司 | Electronic device |
| CN110939604B (en) * | 2018-09-21 | 2022-01-14 | 广达电脑股份有限公司 | Electronic device |
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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 |