CN218994255U

CN218994255U - Petroleum pipe thread internal thread pitch diameter measuring instrument

Info

Publication number: CN218994255U
Application number: CN202222201384.6U
Authority: CN
Inventors: 项福忠
Original assignee: Tianjin Longchi Machinery Manufacturing Co ltd
Current assignee: Tianjin Longchi Machinery Manufacturing Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-05-09
Anticipated expiration: 2032-08-19

Abstract

The utility model relates to the field of mechanical measurement methods and discloses a petroleum pipe thread internal thread pitch diameter measuring instrument which comprises a measuring instrument main body, wherein a first sliding sleeve is sleeved on one side of the outer wall of the measuring instrument main body in a sliding manner, a second sliding sleeve is sleeved on one side of the outer wall of the measuring instrument main body, which is far away from the first sliding sleeve, a third sliding sleeve is sleeved on one side of the outer wall of the measuring instrument main body, which is far away from the second sliding sleeve, and a fixing device is fixedly arranged at the upper end of the third sliding sleeve and the upper end of one side wall of the second sliding sleeve. The internal thread pitch diameter measuring instrument for the petroleum pipe threads has the function of measuring pipe diameters of different sizes, also has the function of conveniently disassembling an indicator, and simultaneously has the function of conveniently disassembling a measuring head.

Description

Petroleum pipe thread internal thread pitch diameter measuring instrument

Technical Field

The utility model relates to the field of mechanical measurement methods, in particular to a petroleum pipe thread internal thread pitch diameter measuring instrument.

Background

The special petroleum pipe is an important material in petroleum industry, and at present, a lot of special petroleum pipe in domestic is scrapped in the oil well due to poor quality of the pipe, and the like, wherein the damage of a plurality of pipes occurs at the threaded connection position. Basically, the quality of the thread processing of the petroleum pipe joint is poor, and each single parameter of the thread does not meet the technical requirements, so that the pipe connection strength and the tightness are poor, and the use requirements are not met. An effective measure to reduce such problems is to improve the quality of the petroleum pipe thread and ensure that various parameters of the pipe thread reach international standards. And judging whether the petroleum pipe thread reaches the standard or not, and measuring and detecting the petroleum pipe thread, wherein the pitch diameter of the internal thread is an important item.

The existing internal thread pitch diameter measuring instrument measures pipelines with different sizes, the measuring heads are required to be replaced, the matched measuring heads are used, the procedure is complex, and the use is inconvenient. Accordingly, one skilled in the art provides a gauge for the pitch diameter of the internal thread of a petroleum pipe to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a petroleum pipe thread internal thread pitch diameter measuring instrument which has the function of measuring pipe diameters of different sizes, has the function of conveniently disassembling an indicator, and has the function of conveniently disassembling a measuring head.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a petroleum pipe screw thread internal thread pitch diameter measuring apparatu, includes the measuring apparatu main part, measuring apparatu main part outer wall one side slip cap is equipped with first slip sleeve, one side slip cap that the measuring apparatu main part outer wall kept away from first slip sleeve is equipped with the second slip sleeve, one side slip cap that the measuring apparatu main part outer wall kept away from the second slip sleeve is equipped with the third slip sleeve, third slip sleeve upper end and second slip sleeve lateral wall lean on the upper end fixed setting jointly, fixing device fixedly connected with indicator, first slip sleeve and second slip sleeve lower extreme all are fixed and are provided with the measuring arm;

a protective sleeve is fixedly arranged on one side of the outer wall of the indicator, a measuring rod is arranged in the protective sleeve, the fixing device comprises a sliding groove and a first fixing sleeve, the inside of the sliding groove is provided with two sliding blocks in a sliding manner, the two sliding blocks are fixedly connected with the protective sleeve through screws and nuts, and the inside of the first fixed sleeve is fixedly connected with the measuring rod through a third locking bolt;

two measurement arm side walls lean on the lower extreme all fixed be provided with the second fixed sleeve, two the inside all fixed sleeve is connected with the measuring head through fixed pin fixedly.

Through above-mentioned technical scheme, can reach the efficiency of measuring not the pipe diameter of equidimension by first slip sleeve, second slip sleeve, third slip sleeve, measuring arm and pilot gauge, can reach the efficiency of conveniently dismantling the pilot gauge by screw, nut, slider, third locking bolt and protection sleeve, can reach the efficiency of conveniently dismantling the measuring head by second fixed sleeve, fixed pin.

Further, limiting blocks are fixedly arranged at two ends of the measuring instrument main body;

through the technical scheme, each sliding sleeve can be prevented from sliding down.

Further, one side of the outer wall of the first sliding sleeve is connected with a first locking bolt in a threaded manner;

through the technical scheme, the first locking bolt can be used for conveniently fixing the first sliding sleeve.

Further, one side of the outer wall of the third sliding sleeve is in threaded connection with a second locking bolt;

through the technical scheme, the second locking bolt can be used for conveniently fixing the third sliding sleeve.

Further, two through holes are formed in the upper ends of one side wall of each sliding block;

through the technical scheme, the screw and the nut can be conveniently fixed.

Further, two through holes formed in the two sliding blocks are symmetrically arranged;

through the technical scheme, the stress is uniform, and the service life is prolonged.

Further, arc grooves are formed in the lower ends of one side wall of each sliding block;

through above-mentioned technical scheme, can make slider and protection sleeve laminating inseparabler, it is more firm to fix.

Further, the lower end face of the indicator is higher than the upper end of the limiting block;

through the technical scheme, the indicator can move freely.

Further, the fixing pin is a taper pin;

through above-mentioned technical scheme, connect more firmly through the taper pin, and the precision is still higher after dismantling many times.

Further, anti-skid protection pads are fixedly arranged at one ends of the first locking bolt, the second locking bolt and the third locking bolt;

by the technical scheme, the surface of the instrument can be prevented from being excessively worn.

The utility model has the following beneficial effects:

1. compared with the existing internal thread pitch diameter measuring instrument, the internal thread pitch diameter measuring instrument provided by the utility model has the advantages that the first sliding sleeve, the second sliding sleeve and the third sliding sleeve are arranged, so that the effect of measuring pipe diameters with different sizes can be achieved.

2. Compared with the existing internal thread pitch diameter measuring instrument, the internal thread pitch diameter measuring instrument provided by the utility model has the advantages that the effect of conveniently disassembling the indicator can be achieved by arranging the sliding block and the third locking bolt, and the indicator can be conveniently replaced when the indicator is insensitive.

3. Compared with the existing internal thread pitch diameter measuring instrument, the internal thread pitch diameter measuring instrument provided by the utility model has the advantages that the effect of conveniently disassembling the measuring head can be achieved, and the measuring head with excessive wear can be conveniently replaced.

Drawings

FIG. 1 is an isometric view of a petroleum pipe thread internal thread pitch diameter measuring instrument according to the present utility model;

FIG. 2 is a schematic diagram of a slide block of a petroleum pipe thread internal thread pitch diameter measuring instrument according to the present utility model;

FIG. 3 is a schematic structural view of a first locking bolt of a petroleum pipe thread internal thread pitch diameter measuring instrument according to the present utility model;

FIG. 4 is an enlarged view of FIG. 1 at A;

fig. 5 is an enlarged view at B in fig. 1.

Legend description:

1. a meter body; 2. a first sliding sleeve; 3. a second sliding sleeve; 4. a measuring arm; 5. a third sliding sleeve; 6. an indicator; 7. a limiting block; 8. a first locking bolt; 9. a chute; 10. a second locking bolt; 11. a slide block; 12. a through hole; 13. an arc-shaped groove; 14. a first fixed sleeve; 15. a measuring rod; 16. a screw; 17. a nut; 18. a third locking bolt; 19. a second fixed sleeve; 20. a measuring head; 21. a protective sleeve; 22. a fixing device; 23. a fixing pin; 24. an anti-slip protective pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides a petroleum pipe screw thread internal thread pitch diameter measuring apparatu, including measuring apparatu main part 1, measuring apparatu main part 1 outer wall one side slip cap is equipped with first slip sleeve 2, measuring apparatu main part 1 outer wall is kept away from the one side slip cap of first slip sleeve 2 and is equipped with second slip sleeve 3, one side slip cap that measuring apparatu main part 1 outer wall kept away from second slip sleeve 3 is equipped with third slip sleeve 5, the upper end of third slip sleeve 5 and one side wall of second slip sleeve 3 lean on the upper end together fixedly to be provided with fixing device 22, fixing device 22 fixedly connected with indicator 6, first slip sleeve 2 and second slip sleeve 3 lower extreme all are fixedly provided with measuring arm 4, can reach the efficiency of measuring different size pipe diameters by first slip sleeve 2, second slip sleeve 3, third slip sleeve 5, measuring arm 4 and indicator 6;

the outer wall of the indicator 6 is fixedly provided with a protective sleeve 21 on one side, a measuring rod 15 is arranged in the protective sleeve 21, a fixing device 22 comprises a sliding groove 9 and a first fixing sleeve 14, two sliding blocks 11 are slidably arranged in the sliding groove 9, the two sliding blocks 11 are fixedly connected with the protective sleeve 21 through a screw 16 and a nut 17, the first fixing sleeve 14 is fixedly connected with the measuring rod 15 through a third locking bolt 18, and the effect of conveniently disassembling the indicator 6 can be achieved through the screw 16, the nut 17, the sliding blocks 11, the third locking bolt 18 and the protective sleeve 21;

the second fixing sleeve 19 is fixedly arranged at the lower end of one side wall of each measuring arm 4, the measuring heads 20 are fixedly connected inside the two second fixing sleeves 19 through the fixing pins 23, and the effect of conveniently disassembling the measuring heads 20 can be achieved through the second fixing sleeves 19 and the fixing pins 23.

The measuring instrument main body 1 both ends are all fixed and are provided with stopper 7, can prevent each sliding sleeve landing, first sliding sleeve 2 outer wall one side threaded connection has first locking bolt 8, can conveniently be fixed to first sliding sleeve 2 by first locking bolt 8, third sliding sleeve 5 outer wall one side threaded connection has second locking bolt 10, can conveniently be fixed to third sliding sleeve 5 by second locking bolt 10, two through-holes 12 have all been seted up to two slider 11 lateral walls by the upper end, can make things convenient for screw 16 and nut 17's fixation, two through-holes 12 that set up on two sliders 11 are symmetrical setting, can make the atress even, increase of service life, arc wall 13 has all been seted up to two slider 11 lateral walls by the lower extreme, can make slider 11 and protection sleeve 21 laminating inseparabler, it is more firm to fix, the terminal surface is higher than stopper 7 upper end down in the indicator 6, can make indicator 6 free movement, fixed pin 23 is the taper pin, still the precision is higher through taper pin connection, and after dismantling many times, first locking bolt 8, second locking bolt 10 and third locking bolt 18 and protection bolt 24 are all provided with the excessive wear-resistant surface protection device.

Working principle: when the utility model is used, the two measuring arms 4 are firstly adjusted to proper positions according to the inner diameter of the internal thread of the pipeline, the first locking bolt 8 and the second locking bolt 10 are screwed, the second sliding sleeve 3 is pulled, the error of the middle diameter of the internal thread of the pipeline can be measured through the measuring head 20 and the indicating gauge 6, in addition, the indicating gauge 6 can be disassembled through adjusting the third locking bolt 18, the screw 16 and the nut 17, the measuring head 20 can be disassembled through adjusting the fixing pin 23, and the worn measuring head 20 is convenient to replace.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a petroleum pipe screw thread internal thread pitch diameter measuring apparatu, includes measuring apparatu main part (1), its characterized in that: the measuring instrument comprises a measuring instrument main body (1), wherein a first sliding sleeve (2) is sleeved on one side of the outer wall of the measuring instrument main body (1) in a sliding manner, a second sliding sleeve (3) is sleeved on one side of the outer wall of the measuring instrument main body (1) away from the first sliding sleeve (2), a third sliding sleeve (5) is sleeved on one side of the outer wall of the measuring instrument main body (1) away from the second sliding sleeve (3) in a sliding manner, a fixing device (22) is fixedly arranged at the upper end of the third sliding sleeve (5) and one side wall of the second sliding sleeve (3) close to the upper end of the side wall of the second sliding sleeve, an indicator (6) is fixedly connected to the fixing device (22), and measuring arms (4) are fixedly arranged at the lower ends of the first sliding sleeve (2) and the second sliding sleeve (3); the automatic measuring device is characterized in that a protective sleeve (21) is fixedly arranged on one side of the outer wall of the indicator (6), a measuring rod (15) is arranged inside the protective sleeve (21), the fixing device (22) comprises a sliding groove (9) and a first fixing sleeve (14), two sliding blocks (11) are slidably arranged inside the sliding groove (9), the two sliding blocks (11) are fixedly connected with the protective sleeve (21) through screws (16) and nuts (17), and the first fixing sleeve (14) is fixedly connected with the measuring rod (15) through a third locking bolt (18);

the two measuring arms (4) are fixedly provided with second fixing sleeves (19) at the lower ends of one side wall, and measuring heads (20) are fixedly connected inside the two second fixing sleeves (19) through fixing pins (23).

2. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: limiting blocks (7) are fixedly arranged at two ends of the measuring instrument main body (1).

3. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: and one side of the outer wall of the first sliding sleeve (2) is connected with a first locking bolt (8) in a threaded manner.

4. A petroleum pipe thread internal thread pitch diameter gauge according to claim 3, wherein: and one side of the outer wall of the third sliding sleeve (5) is connected with a second locking bolt (10) in a threaded manner.

5. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: two through holes (12) are formed in the upper ends of one side wall of each sliding block (11).

6. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: two through holes (12) formed in the two sliding blocks (11) are symmetrically arranged.

7. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: arc grooves (13) are formed in the lower ends of one side wall of each sliding block (11).

8. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: the lower end face of the indicator (6) is higher than the upper end of the limiting block (7).

9. The petroleum pipe thread internal thread pitch diameter gauge according to claim 1, wherein: the fixing pin (23) is a taper pin.

10. The petroleum pipe thread internal thread pitch diameter gauge as recited in claim 4, wherein: and anti-skid protection pads (24) are fixedly arranged at one ends of the first locking bolt (8), the second locking bolt (10) and the third locking bolt (18).