CN2420415Y - Pull rod fast fastening joint - Google Patents
Pull rod fast fastening joint Download PDFInfo
- Publication number
- CN2420415Y CN2420415Y CN 00207939 CN00207939U CN2420415Y CN 2420415 Y CN2420415 Y CN 2420415Y CN 00207939 CN00207939 CN 00207939 CN 00207939 U CN00207939 U CN 00207939U CN 2420415 Y CN2420415 Y CN 2420415Y
- Authority
- CN
- China
- Prior art keywords
- hole
- voussoir
- fastening
- utility
- pull bar
- 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 - Lifetime
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- Clamps And Clips (AREA)
Abstract
The utility model relates to a pull rod fast fastening joint, and the inner of the casing body of the utility model is provided with a hole 2 with inclination; a pull rod fastening wedge block 3 is arranged in the hole 2, and the inner of a hole on the upper par top the wedge block is provided with a limiting pressure spring 6; an external connecting structure 9 is arranged on the casing body 1. The utility model has the advantage of simple and compact structure, and the utility model can tightly clamp pull rods with various gripping heads and the pull rods can be more and more tight by pilling; the utility model also has the advantages of little possibility of looseness, rapid disassembly and good using performance, being especially suitable to be used for sucker rod joints for oil wells.
Description
The utility model relates to the sucker rod technical field.
The banded stayed mast joint that in the past was used for oil well mostly is two stainless steel clamping plate bolt interconnection system structures, and its weak point is to install slowly, easily gets loose, and intensity is low, and accident accounts for 60% of oil well accident, thereby has influenced the operating efficiency of oil well.
The purpose of this utility model provides the quick fastening of a kind of stayed mast, and it is simple and compact for structure, installs soon, be difficult for getting loose, and the intensity height, the life-span is long, and is safe.
The utility model is achieved in that the quick fastening of a kind of pulling force, and it has a housing, and the inside of housing is provided with the hole of band gradient, is provided with the fastening voussoir of pull bar in the hole, is provided with spacing compression spring in the hole on voussoir top, and housing is provided with external link structure.
The hole of band gradient is that a round platform hole is good, and the fastening voussoir 3 of pull bar is the 2-4 piece in the hole, and the medial surface shape of voussoir and the clamping of stayed mast match.
External link structure is that thread matching structure is good, and is provided with sealing ring.
The bottom of band angularity hole is provided with the pull bar mating holes, and it is good which is provided with sealing ring.
The top in housing medi-spring hole also can be provided with the hole of a band gradient, is provided with the fastening voussoir of pull bar in the hole, but housing divides two parts of loose joint up and down.
Upper top with the hole of gradient can be provided with the pull bar mating holes in the above, and it is good which is provided with sealing ring.
The hole of top band gradient is a round platform hole preferably, and the fastening voussoir of the pull bar in the hole is the 2-4 piece, and the clamping area of the medial surface shape bosom upper pulling force bar of voussoir matches.
Last lower house is for being threaded or other loose joint formula structures.
Characteristics of the present utility model are: simple and compact for structure, easy accessibility is difficult for getting loose, and the life-span is long, and functional performance is good, and the conversion chuck can clamp the stayed mast of various forms chuck.Of many uses, the stayed mast that can be used for using under the various occasions connects, and is specially adapted to the oil well oil-pumping knock-off joint and uses.
Be described further below in conjunction with embodiment, but not as to qualification of the present utility model.
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the structural representation of embodiment 2.
Fig. 3 is an A-A cross-sectional schematic among Fig. 2.
Referring to Fig. 1, be provided with round platform hole 2 in the housing 1, wherein be combined with 2 voussoirs 3, tabular stayed mast can be clamped, 5 is plug, which is provided with sealing ring, also can on the pull bar mating holes, be provided with sealing ring without plug, 6 are the compression spring, 7 is check ring, and 8 is sealing ring, so that with the cylindricality mating face seal of the threaded exterior on screw thread 9 and another fit on part.
Referring to Fig. 2,10 is last round platform hole, and 11 is last voussoir, and 3,12 is last lower house matching thread structure, the same Fig. 1 of other labels.
Referring to Fig. 3, totally 3 of voussoirs are used for clamping tubular or bar-shaped stayed mast, and are bad in order to prevent stayed mast pipe clamp head-clamp, can be with bursting tube 13 or safety rod in pipe.
Spring end face also can add packing ring, to guarantee its functional performance.
The stayed mast chuck shape of cross section that the utility model is suitable for can be plate shape, square, tubular, round bar shape, triangle etc.
Claims (8)
1, the quick fastening of a kind of stayed mast, it is characterized in that having a housing (1), the inside of housing (1) is provided with the hole (2) of band gradient, is provided with the fastening voussoir of pull bar (3) in the hole, be provided with spacing compression spring (6) in the hole on voussoir top, housing (1) is provided with external link structure (9).
2, quick fastening according to claim 1 is characterized in that the hole with gradient is a round platform hole, and the fastening voussoir of pull bar (3) is the 2-4 piece in the hole, and the medial surface shape of voussoir and the clamping area of stayed mast match.
3, quick fastening according to claim 1 is characterized in that external link structure is a thread matching structure, and is provided with sealing ring.
4, quick fastening according to claim 1 is characterized in that being provided with the pull bar mating holes with the bottom of angularity hole, which is provided with sealing ring (4).
5, according to claim 1,2,3 or 4 described quick fastenings, it is characterized in that the top in housing (1) medi-spring hole also has a hole (10) of being with gradient, be provided with the fastening voussoir of upper connecting rod (11) in the hole, but housing divides two parts of loose joint up and down.
6, quick fastening according to claim 5 is characterized in that in the above being provided with the pull bar mating holes with the upper top in the hole of gradient, which is provided with sealing ring.
7, quick fastening according to claim 5, the hole that it is characterized in that top band gradient are round platform holes, and the fastening voussoir of the pull bar in the hole (11) is the 2-4 piece, and the medial surface shape of voussoir and the clamping area of upper pulling force bar match.
8, quick fastening according to claim 5 is characterized in that lower house is be threaded (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207939 CN2420415Y (en) | 2000-04-12 | 2000-04-12 | Pull rod fast fastening joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207939 CN2420415Y (en) | 2000-04-12 | 2000-04-12 | Pull rod fast fastening joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420415Y true CN2420415Y (en) | 2001-02-21 |
Family
ID=33575453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00207939 Expired - Lifetime CN2420415Y (en) | 2000-04-12 | 2000-04-12 | Pull rod fast fastening joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420415Y (en) |
-
2000
- 2000-04-12 CN CN 00207939 patent/CN2420415Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010221 |