CN203626751U - Oil pumping unit unloader - Google Patents

Oil pumping unit unloader Download PDF

Info

Publication number
CN203626751U
CN203626751U CN201320670253.0U CN201320670253U CN203626751U CN 203626751 U CN203626751 U CN 203626751U CN 201320670253 U CN201320670253 U CN 201320670253U CN 203626751 U CN203626751 U CN 203626751U
Authority
CN
China
Prior art keywords
oil pumping
pumping unit
unloader
groove
lock dog
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
Application number
CN201320670253.0U
Other languages
Chinese (zh)
Inventor
耿兆华
王明建
王明礼
王朝可
燕继勇
董凌辰
徐进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Zhongyuan Oilfield Co No 1 Oil Production Plant
Original Assignee
China Petroleum and Chemical Corp
Sinopec Zhongyuan Oilfield Co No 1 Oil Production Plant
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Zhongyuan Oilfield Co No 1 Oil Production Plant filed Critical China Petroleum and Chemical Corp
Priority to CN201320670253.0U priority Critical patent/CN203626751U/en
Application granted granted Critical
Publication of CN203626751U publication Critical patent/CN203626751U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an oil pumping unit unloader, and belongs to the technical field of unloading tools for testing indicator diagrams in oil field well testing work. The oil pumping unit unloader comprises a body, spring pins and locking blocks. Axial locking grooves are formed in the upper portion of the body. Radial sliding grooves are formed in the positions, corresponding to the lower portions of the axial locking grooves, on a pipe wall. The locking blocks are mounted in the axial locking grooves and are in threaded connection with the spring pins in the radial sliding grooves. The oil pumping unit unloader has the advantages that the safety self-locking function is achieved by the installation of the spring pins and the locking grooves, the potential safety hazard that an unloader flies off and hurts people in the unloading process is eliminated, operation is safe and convenient, a polish rod is not damaged, the labor intensity of workers is mitigated, and work efficiency is improved.

Description

A kind of oil pumping machine unloading device
Technical field
The utility model relates to a kind of oil pumping machine unloading device, belongs to the tool of unloading technical field of testing indicator card in oilfield well testing work.
Background technology
In field produces test process, oil pumper is often wanted measuring indicator diagram, controls at any time and understand the working condition of downhole pump.The method that existing emptier adopts is conventionally that the side milling on plain tubing goes out the wide and dark open slot for 30mm × 45m together, in measuring indicator diagram uninstall process, there is no protector, need staff to grab emptier, in uninstall process, emptier easily occurs to fly out from blowout prevention box and polished rod, and operator is damaged and potential safety hazard.
03206856.5 discloses a kind of emptier of testing indicator card for well testing work.Be made up of main body, lock dog, handle, be fixed with left handle, right ring and lock dog in main body, right handle is together with lock dog fixed connection, and right handle is inserted in right ring, is that the keep right termination of handle is inserted in lock ring in use.But this kind of combination complex operation that emptier adopts, lock dog termination exists inserts phenomenon not in place, does not have safe self-locking effect.
Utility model content
The purpose of this utility model is the combination complex operation adopting in order to overcome above-mentioned emptier of the prior art, and lock dog termination exists inserts defect not in place, safe self-locking poor performance, and the emptier that a kind of barrier propterty is good is provided.
The utility model is made up of body, axis pin of the spring, lock dog, and the top of body has axial locked groove, on the tube wall corresponding with axial locked groove bottom, has and radially slides groove, and lock dog is arranged in axial locked groove, is threaded with the axis pin of the spring radially sliding in groove.
The beneficial effects of the utility model are by mounting spring bearing pin, locked groove, have played safe self-locking effect, solve the potential safety hazard that flies out and hurt sb.'s feelings in emptier uninstall process, easy-to-operate, do not injure polished rod, alleviated workman's labour intensity, improved operating efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1, the utility model is made up of body 1, axis pin of the spring 2, lock dog 3, and the top of body 1 has axial locked groove 5, on the tube wall corresponding with axial locked groove 5 bottoms, has and radially slides groove 6, lock dog 3 is arranged in axial locked groove 5, is threaded with the axis pin of the spring 2 radially sliding in groove 6.
Axially locked groove 5, radially slide groove 6 and lock dog 3 is major arc shape, axis pin of the spring 2 is threaded in the middle part of lock dog 3.
Radially slide on the symmetrical position of groove 6 and have locked groove 7.
On the outer tube wall of body 1, be welded with handle 4, can facilitate operation of the present utility model.
In the time of pumping well testing indicator card, the utility model is placed on wellhead blowout-preventing box upper surface by hand-held handle 4, torsional spring bearing pin 2 makes lock dog 3 opening directions and axial locked groove 5 opening directions when consistent, axis pin of the spring 2 is locked with locked groove 7, horizontal sliding makes polished rod enter the arc space in axial locked groove 5 outsides, torsional spring bearing pin 2 is to opposite side locked groove 7 again, fixing lock dog 3, make polished rod be positioned at the annular space in lock dog 3 and axial locked groove 5 outsides, oil-extractor polish-rod is descending, the lower surface of the square clamp by polished rod place contacts with upper surface of the present utility model, polished rod load is transferred on wellhead packing box, reach the object of unloading.Handling safety is reliable, quick rapidly, does not injure polished rod, after test, without reparation, has alleviated workman's labour intensity, has improved operating efficiency.

Claims (4)

1. an oil pumping machine unloading device, it is characterized in that: formed by body (1), axis pin of the spring (2), lock dog (3), it is characterized in that: axial locked groove (5) is opened on the top of body (1), on the tube wall corresponding with locked groove (5) bottom, have and radially slide groove (6), lock dog (3) is arranged on axial locked groove (5), is threaded with the axis pin of the spring (2) radially sliding in groove (6).
2. a kind of oil pumping machine unloading device according to claim 1, is characterized in that: axially locked groove (5), radially slide groove (6) and lock dog (3) is major arc shape, axis pin of the spring (2) is threaded in the middle part of lock dog (3).
3. a kind of oil pumping machine unloading device according to claim 1 and 2, is characterized in that: radially slide on the symmetrical position of groove (6) and have locked groove (7).
4. a kind of oil pumping machine unloading device according to claim 1 and 2, is characterized in that: on the outer tube wall of body (1), be welded with handle (4).
CN201320670253.0U 2013-10-28 2013-10-28 Oil pumping unit unloader Expired - Fee Related CN203626751U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320670253.0U CN203626751U (en) 2013-10-28 2013-10-28 Oil pumping unit unloader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320670253.0U CN203626751U (en) 2013-10-28 2013-10-28 Oil pumping unit unloader

Publications (1)

Publication Number Publication Date
CN203626751U true CN203626751U (en) 2014-06-04

Family

ID=50813240

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320670253.0U Expired - Fee Related CN203626751U (en) 2013-10-28 2013-10-28 Oil pumping unit unloader

Country Status (1)

Country Link
CN (1) CN203626751U (en)

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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: 20140604

Termination date: 20141028

EXPY Termination of patent right or utility model