Wide-surface supporting elastic centralizer

Abstract

The utility model discloses a wide face support elastic centralizer relates to elastic centralizer technical field, including barrel body, the outer wall of barrel body is provided with a plurality of surrounding symmetry setting up the buffer slot, be equipped with the support block in the plurality of buffer slot, the inner wall of buffer slot contact is equipped with the elastic piece, the end portion of elastic piece contact with the support block cooperation, the elastic piece is equipped with the elastic piece, and the elastic piece is equipped with the elastic piece. First threads are formed in the two ends of the outer wall of the barrel, second threads are formed in the outer walls of the multiple supporting blocks, the two ends of the barrel are sleeved with threaded pipes in a threaded mode, the threaded pipes cover the outer sides of the supporting blocks, the two ends of the outer wall of the barrel are each provided with two symmetrically-formed grooves, and limiting blocks are arranged in the grooves through elastic mechanisms. According to the barrel, the supporting block, the elastic piece, the threaded pipe, the groove, the limiting block and the elastic mechanism, wide-face elastic supporting can be achieved through the supporting block, meanwhile, the position of the threaded pipe is fixed, and the situation that the threaded pipe and the supporting block are separated to affect the supporting stability of the supporting block is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic centralizers, in particular to a wide-surface supporting elastic centralizer. Background Art

[0002] The elastic straightener is made of elastic material and achieves the straightening effect through elastic deformation. It has a large elastic range and adjustability and is suitable for different working scenarios and needs.

[0003] After searching, the patent number CN201474630U discloses a wide-surface support elastic stabilizer. The elastic stabilizer is reasonable and compact, easy to use, has a large support surface and good elasticity. Under various downhole conditions, it can give full play to the advantages of the stabilizer's tight support surface, strong elastic reset force, and high tool centering. It has good passability into curved well sections, has a forced bottom-protecting and straightening effect, and can straighten and stabilize the test tool under both small and large displacements.

[0004] However, the outer support block of the centralizer is compressed by a threaded tube. When the centralizer enters the pipeline and is squeezed and rubbed against the pipeline, the threaded tube is easily loosened and separated from the support block, which reduces the stability of the support block. Utility Model Content

[0005] In view of the above problems existing in the existing wide surface supporting elastic centralizer, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a wide-surface supporting elastic centralizer, which solves the problem that the supporting portion on the outer side of the centralizer cannot be stably fixed in position.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A wide-surface support elastic centralizer, comprising a cylinder, the outer wall of the cylinder is provided with a plurality of buffer grooves arranged in a circumferential symmetry, a plurality of the buffer grooves are provided with support blocks, the inner wall of the buffer groove is provided with an elastic sheet in contact, the end of the elastic sheet is in contact with the support block, the outer wall of the cylinder is provided with a first thread at both ends, the outer walls of the plurality of the support blocks are provided with a second thread, the two ends of the cylinder are provided with a threaded sleeve with a threaded tube, and the threaded tube cover is provided on the outer side of the support block;

[0009] Two symmetrically arranged grooves are provided at both ends of the outer wall of the cylinder, and a limit block is arranged in the groove through an elastic mechanism, and the limit block contacts and cooperates with the pipe mouth of the threaded pipe.

[0010] Preferably, the elastic mechanism includes a telescopic rod and a spring, the telescopic rod is fixedly arranged inside the groove, and a connecting plate is fixedly arranged at the end, the limit block is arranged in cooperation with the connecting plate, the spring is sleeved on the sleeve end of the telescopic rod, and the two ends are respectively fixedly connected to the lower end of the telescopic rod and the limit block.

[0011] Preferably, a positioning bolt is threaded through the top of the limit block, and a lower end of the positioning bolt is threadedly disposed in the connecting plate.

[0012] Preferably, a rotation groove is provided on the top of the limit block, and the screw head of the positioning bolt is arranged in the rotation groove.

[0013] Furthermore, the upper ends of the plurality of limit blocks away from the threaded tube are all arranged in an inclined surface, and baffles are fixedly provided at both ends of the outer walls of the plurality of support blocks, and the threaded tubes are in contact with the baffles.

[0014] Preferably, two symmetrically arranged limiting rings are fixedly provided on the inner wall of the buffer groove, and the elastic sheet is passed through the limiting rings.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model, through the provided cylinder, support block, elastic sheet, threaded tube, groove, limit block and elastic mechanism, can perform wide-surface elastic support through the support block, and fix the position of the threaded tube at the same time, so as to avoid the threaded tube and the support block from separating and affecting the support stability of the support block.

[0017] 2. The utility model can rotate the limit block through the groove, limit block, elastic mechanism, rotation groove and positioning bolt, which is convenient for removing the threaded pipe from the outside of the cylinder, thereby improving the versatility of the elastic centralizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the limit block of the utility model.

[0022] Description of reference numerals:

[0023] 1. Cylinder; 2. Buffer groove; 3. Support block; 4. Elastic sheet; 5. Threaded tube; 6. Limit block; 7. Telescopic rod; 8. Spring; 9. Connecting plate; 10. Positioning bolt; 11. Rotating groove; 12. Baffle; 13. Limiting ring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a wide-surface supporting elastic centralizer.

[0026] The utility model provides Figure 1-3 A wide-surface support elastic straightener shown includes a cylinder 1, the outer wall of the cylinder 1 is provided with a plurality of buffer grooves 2 which are symmetrically arranged in a circle, support blocks 3 are placed in the plurality of buffer grooves, the inner wall of the buffer groove 2 is contacted with an elastic sheet 4, the end of the elastic sheet 4 is in contact with the support block 3, the inner wall of the buffer groove 2 is fixedly provided with two symmetrically arranged limit rings 13, the elastic sheet 4 is inserted into the limit ring 13, the outer wall of the cylinder 1 is provided with a first thread at both ends, the outer walls of the plurality of support blocks 3 are provided with a second thread, the two ends of the cylinder 1 are threadedly sleeved with a threaded tube 5, the threaded tube 5 is covered on the outside of the support block 3, the outer wall of the cylinder 1 is provided with two symmetrically arranged grooves at both ends, a limit block 6 is provided in the groove through an elastic mechanism, the limit block 6 is in contact with and cooperates with the pipe mouth of the threaded tube 5, the upper ends of the plurality of limit blocks 6 on the side away from the threaded tube 5 are arranged in an inclined surface, the outer walls of the plurality of support blocks 3 are fixedly provided with baffles 12 at both ends, the threaded tube 5 is in contact with and cooperates with the baffle 12.

[0027] Before the device is used, multiple support blocks 3 are placed in multiple buffer grooves 2 and contact with the elastic sheet 4. At this time, under the support of the limit ring 13, the position of the elastic sheet 4 is limited, and then the threaded tubes 5 on both sides are rotated so that the threaded tube 5 rotates to the outside of the support block 3 to determine the position of the support block 3. When the threaded tube 5 contacts the baffle 12, the limit block 6 inside the groove is set at the pipe mouth position of the threaded tube 5. At this time, the position of the threaded tube 5 can be fixed. When the device is used, the elastic sheet 4 is squeezed by multiple support blocks 3 to effectively buffer the squeezing. At the same time, after the device is separated from the inside of the pipeline, the elastic force of the elastic sheet 4 is restored to the original position as a whole under the elastic recovery of the elastic sheet 4. Since the side wall of the limit block 5 is set in an inclined surface, the threaded tube 5 can push the limit block 5 when rotating, which does not affect the normal installation of the threaded tube 5.

[0028] In order to enable the limit block 6 to be stably arranged at the pipe mouth of the threaded pipe 5 without affecting the disassembly of the threaded pipe 5, as shown in FIG. Figure 2-3 As shown, the elastic mechanism includes a telescopic rod 7 and a spring 8. The telescopic rod 7 is fixed inside the groove, and a connecting plate 9 is fixed at the end. A positioning bolt 10 is threaded through the top of the limit block 6, and the lower end of the positioning bolt 10 is threaded in the connecting plate 9. The limit block 6 and the connecting plate 9 are matched with each other. The spring 8 is sleeved on the sleeve rod end of the telescopic rod 7, and the two ends are respectively fixedly connected to the lower end of the telescopic rod 7 and the limit block 6. A rotating groove 11 is opened on the top of the limit block 6, and the screw head of the positioning bolt 10 is arranged in the rotating groove 11.

[0029] With the setting of the positioning bolt 10, the connecting plate 9 and the limit block 6 are connected. When the threaded tube 5 rotates to the outside of the support block 3, the threaded tube 6 squeezes the limit block 6 by contacting the inclined surface of the limit block 6. At this time, the limit block 6 squeezes the spring 8 and the telescopic rod 7 through the connecting plate 9. When the position of the threaded tube 5 is determined, the limit block 6 can rebound to its original position under the elastic force recovery of the spring 8 and determine the position of the threaded tube 5. When the threaded tube 5 needs to be removed, the positioning bolt 10 is rotated to make the limit block 6 rotate 180 degrees and then fixed. At this time, the threaded tube 5 can rotate and move away from the cylinder 1.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wide surface support elastic centralizer, comprising a cylinder (1), characterized in that: The outer wall of the cylinder (1) is provided with a plurality of buffer grooves (2) arranged in a symmetrical manner, and a support block (3) is placed in each of the plurality of buffer grooves. An elastic sheet (4) is contacted with the inner wall of the buffer groove (2), and the end of the elastic sheet (4) contacts and cooperates with the support block (3). Both ends of the outer wall of the cylinder (1) are provided with a first thread, and the outer walls of the plurality of support blocks (3) are provided with a second thread. Both ends of the cylinder (1) are threadedly sleeved with a threaded tube (5), and the threaded tube (5) is covered on the outside of the support block (3); Two symmetrically arranged grooves are provided at both ends of the outer wall of the cylinder (1), and a limit block (6) is provided in the groove via an elastic mechanism, and the limit block (6) contacts and cooperates with the pipe mouth of the threaded pipe (5).

2. The wide surface support elastic centralizer according to claim 1, characterized in that: The elastic mechanism comprises a telescopic rod (7) and a spring (8); the telescopic rod (7) is fixedly arranged inside the groove, and a connecting plate (9) is fixedly arranged at the end thereof; the limit block (6) is arranged in cooperation with the connecting plate (9); the spring (8) is sleeved on the sleeve end of the telescopic rod (7), and the two ends are respectively fixedly connected to the lower end of the telescopic rod (7) and the limit block (6).

3. The wide surface support elastic centralizer according to claim 2, characterized in that: A positioning bolt (10) is threadedly passed through the top of the limit block (6), and a lower end of the positioning bolt (10) is threadedly disposed in the connecting plate (9).

4. The wide surface support elastic centralizer according to claim 3, characterized in that: A rotation groove (11) is provided on the top of the limit block (6), and the screw head of the positioning bolt (10) is arranged in the rotation groove (11).

5. The wide surface support elastic centralizer according to claim 1, characterized in that: The upper ends of the plurality of limit blocks (6) on the side away from the threaded tube (5) are all arranged in an inclined surface, and baffles (12) are fixedly provided at both ends of the outer walls of the plurality of support blocks (3), and the threaded tube (5) is in contact with the baffles (12).

6. The wide surface support elastic centralizer according to claim 1, characterized in that: Two symmetrically arranged limiting rings (13) are fixedly provided on the inner wall of the buffer groove (2), and the elastic sheet (4) is inserted into the limiting rings (13).

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