CN218137610U - Centering mechanism for pressure pipeline detection - Google Patents

Abstract

The utility model discloses a centering mechanism for pressure pipeline detection, which comprises a supporting tube and a driving unit; supporting a tube: the upper wall surface of the upper wall is rotatably connected with a rotating cylinder through a bearing, an inner cavity of the rotating cylinder is in threaded connection with a moving rod, the upper end of the moving rod penetrates through a through hole arranged in the middle of a supporting tube and extends to the outside, mounting seats are arranged at the upper end of an outer arc surface of the supporting tube and the upper end of an outer arc surface of the moving rod, and shear frames which are uniformly distributed are rotatably connected between two vertically adjacent mounting seats through a rotating shaft; a drive unit: the driving unit is arranged at the lower end of the supporting tube and is fixedly connected with the outer cambered surface of the rotating cylinder; wherein: the drive unit comprises a rotating rod, a bevel gear and a limiting assembly, and the centering mechanism for pressure pipeline detection greatly improves accuracy and stability of the pressure pipeline detection, simultaneously facilitates operation of workers, and achieves the purpose of quick centering before pressure pipeline detection.

Description

Centering mechanism for pressure pipeline detection

Technical Field

The utility model relates to a pipeline under pressure detects technical field, specifically is a pipeline under pressure detects uses centering mechanism.

Background

Pipeline under pressure, it bears the pipeline of interior pressure or external pressure to indicate all, because pipeline under pressure needs the pressure-bearing, all need use special detecting instrument after producing, come to detect pipeline under pressure's inside, in order to ensure that pipeline under pressure belongs to qualified product, at present, when going on pipeline under pressure and detecting, usually by artifical handheld test probe, come to detect pipeline under pressure's inside, but the centering effect of this kind of mode is relatively poor, can lead to pipeline under pressure to detect accuracy and stability when time ideal inadequately, inconvenient staff operates, for this reason, we provide a pipeline under pressure and detect and use centering mechanism.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a pipeline under pressure detects and uses centering mechanism, increased substantially pipeline under pressure and examined time measuring accuracy and stability, also made things convenient for the staff to operate simultaneously, reached pipeline under pressure and detected the preceding purpose of quick centering, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a centering mechanism for pressure pipeline detection comprises a supporting tube and a driving unit;

supporting a tube: the upper wall surface of the upper wall is rotatably connected with a rotating cylinder through a bearing, an inner cavity of the rotating cylinder is in threaded connection with a moving rod, the upper end of the moving rod penetrates through a through hole arranged in the middle of a supporting tube and extends to the outside, mounting seats are arranged at the upper end of an outer arc surface of the supporting tube and the upper end of an outer arc surface of the moving rod, and shear frames which are uniformly distributed are rotatably connected between two vertically adjacent mounting seats through a rotating shaft;

a drive unit: set up in the lower extreme of stay tube, drive unit and the outer cambered surface fixed connection who rotates a section of thick bamboo have increased substantially the pressure pipeline and have examined time measuring accuracy and stability, also make things convenient for the staff to operate simultaneously, have reached the purpose of quick centering before the pressure pipeline detects.

Further, drive unit includes dwang, bevel gear and spacing subassembly, the dwang passes through the bearing and rotates to be connected in the dwang that the outer cambered surface lower extreme of stay tube set up, and the inboard end of dwang and the outer cambered surface of a rotating cylinder all are equipped with bevel gear, and two bevel gear meshes to be connected, and spacing subassembly sets up in the lower extreme of stay tube, and spacing subassembly has reached high-efficient driven purpose with the right wall fixed connection of dwang.

Further, spacing subassembly includes solid fixed ring and carriage, gu fixed ring sets up in the extrados lower extreme of stay tube, sliding connection has the carriage in the cross spout that the dwang right-hand member set up, and the inserted block that the carriage left end face evenly set up corresponds the slot that sets up with solid fixed ring right-hand member respectively and pegs graft, has played the spacing effect of quick locking.

Further, spacing subassembly still includes spring one, spring one sets up in the right wall of dwang, the left end of spring one and the right end face contact of carriage, and spring one is established with the outside movable sleeve of dwang, plays automatic re-setting's brave and brave.

Furthermore, the upper end of the through hole formed in the middle of the supporting tube is provided with a limiting block, and the limiting block is connected with a limiting groove formed in the outer arc surface of the moving rod in a sliding mode and plays a role in vertical sliding support for the moving rod.

Furthermore, a second spring is arranged between the top wall surface of the moving rod and the bottom wall surface of the supporting tube, and the second spring is movably sleeved with the outer portion of the moving rod to increase the friction force of the rotating cylinder in screwing mode.

Furthermore, the outside end of scissors frame all is equipped with the block rubber, avoids damaging the pipeline under pressure inner wall when centering operation.

Compared with the prior art, the beneficial effects of the utility model are that: this centering mechanism for pressure pipeline detects has following benefit:

the staff takes out the pipeline under pressure that waits to detect, then the pipeline under pressure that will wait to detect is established in the stay tube, the carriage, the mount pad, the outside of whole mechanism is constituteed to the scissors frame, then the staff pulls out the carriage, make the inserted block of its left end face and the slot separation of solid fixed ring right-hand member face, later through carriage rotation dwang, the dwang rotates then through the synchronous rotation of two bevel gear drive rotor barrels that the meshing is connected, because the carriage is restricted by the spacing piece and can only vertical reciprocating motion, then drive the carriage and remove downwards when the rotor barrel rotates, the carriage moves down and then drives the scissors frame and open synchronously, and through the rubber block with the pipeline under pressure contact that waits to detect, with this fix the centering to the pipeline under pressure, stop pulling out the carriage after this, the carriage is pulled out, the carriage that the atress compressed spring can kick-back immediately at this moment, and the top moves left simultaneously, can make the inserted block that the carriage left end face evenly set up again with the fixed ring right-hand member face correspond the slot that sets up and peg graft, with this, carry out spacing is carried out to the pipeline under pressure and the pipeline under pressure detection accuracy need to detect when the pipeline, the pipeline under pressure detection accuracy also to detect the operation by a wide margin and the detection has been carried out to the above-range detection personnel.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the driving unit of the present invention;

fig. 3 is an enlarged schematic view of the a position of the present invention.

In the figure: the device comprises a supporting pipe 1, a moving rod 2, a mounting seat 3, a scissor holder 4, a rotating cylinder 5, a driving unit 6, a rotating rod 61, a bevel gear 62, a limiting component 63, a fixing ring 631, a sliding frame 632, a spring 633I, a limiting block 7, a spring II 8 and a rubber block 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a technical solution: a centering mechanism for pressure pipeline detection comprises a supporting tube 1 and a driving unit 6;

supporting a tube 1: the pressure pipeline centering and fixing device comprises a supporting pipe 1, a rotating cylinder 5 is rotatably connected to the top wall face of the supporting pipe through a bearing, moving rods 2 are in threaded connection with inner cavities of the rotating cylinder 5, the upper ends of the moving rods 2 penetrate through holes formed in the middle of the supporting pipe 1 and extend to the outside, mounting seats 3 are arranged at the upper ends of outer cambered surfaces of the supporting pipe 1 and the upper ends of outer cambered surfaces of the moving rods 2, uniformly distributed shear frames 4 are rotatably connected between two vertically adjacent mounting seats 3 through rotating shafts, the moving rods 2 are driven to move downwards when the rotating cylinder 5 rotates, the shear frames 4 are driven to synchronously open when the moving rods 2 move downwards, so that the pressure pipeline is centered and fixed, then the inner wall of the pressure pipeline is detected through a detection probe, the accuracy and the stability during pressure pipeline detection are greatly improved, and meanwhile, and the operation of workers is facilitated;

the drive unit 6: the driving unit 6 is fixedly connected with the outer arc surface of the rotating cylinder 5, the driving unit 6 comprises a rotating rod 61, a bevel gear 62 and a limiting component 63, the rotating rod 61 is rotatably connected in a rotating hole arranged at the lower end of the outer arc surface of the supporting tube 1 through a bearing, the bevel gear 62 is arranged at the inner end of the rotating rod 61 and the outer arc surface of the rotating cylinder 5, the two bevel gears 62 are meshed and connected, the limiting component 63 is arranged at the lower end of the supporting tube 1, the limiting component 63 is fixedly connected with the right wall surface of the rotating rod 61, the limiting component 63 comprises a fixing ring 631 and a sliding frame 632, the fixing ring 631 is arranged at the lower end of the outer arc surface of the supporting tube 1, the sliding frame 632 is slidably connected in a cross sliding groove arranged at the right end of the rotating rod 61, insertion blocks uniformly arranged at the left end surface of the sliding frame 632 are respectively inserted into insertion grooves correspondingly arranged at the right end surface of the fixing ring 631, the limiting component 63 further comprises a first spring 633, the first spring is arranged at the right wall surface of the rotating rod 61, the left end of the first spring 633 is in contact with the right end face of the sliding frame 632, the first spring 633 is movably sleeved outside the rotating rod 61, a worker takes out a pressure pipeline to be detected, the pressure pipeline to be detected is sleeved outside the integral mechanism formed by the supporting tube 1, the moving rod 2, the mounting seat 3 and the scissor holder 4, then the worker pulls the sliding frame 632 outwards to separate the insert block on the left end face of the sliding frame from the insert slot on the right end face of the fixing ring 631, then the rotating rod 61 is rotated through the sliding frame 632, the rotating cylinder 5 is driven to synchronously rotate through the two bevel gears 62 connected in a meshed mode when the rotating rod 61 is rotated, the sliding frame 632 stops being pulled outwards after the rotation is stopped, the first spring 633 compressed under stress can rebound immediately and pushes the sliding frame 632 to move leftwards simultaneously, and finally the insert block uniformly arranged on the left end face of the sliding frame 632 is inserted into the insert slot correspondingly arranged on the right end face of the fixing ring 631 again, the rotating rod 61 and the auxiliary mechanism thereof are limited, so that the purpose of high-efficiency driving is achieved.

Wherein: the through hole upper end that the stay tube 1 middle part set up is equipped with stopper 7, stopper 7 and the spacing groove sliding connection of 2 outer cambered surfaces settings of carriage release lever, and carriage release lever 2 can only vertical reciprocating motion by the restriction of stopper 7.

Wherein: a second spring 8 is arranged between the top wall surface of the moving rod 2 and the bottom wall surface of the supporting tube 1, the second spring 8 is movably sleeved with the outside of the moving rod 2, and the second spring 8 can increase the friction force of the rotating rod 2 and the rotating cylinder 5 in screwing mode.

Wherein: shear holder 4's outside end all is equipped with block rubber 9, and block rubber 9's setting is then avoided damaging the pipeline under pressure inner wall when centering operation.

The utility model provides a pair of pipeline under pressure detects with centering mechanism's theory of operation as follows: firstly, a worker fixes a detection probe on the upper end surface of the movable rod 2, then the worker takes out the pressure pipeline to be detected, then a pressure pipeline to be detected is sleeved outside the integral mechanism formed by the supporting tube 1, the moving rod 2, the mounting seat 3 and the scissor holder 4, then the worker pulls the sliding rack 632 outwards to separate the insertion block on the left end surface from the insertion slot on the right end surface of the fixed ring 631, and then rotates the rotating rod 61 through the sliding rack 632, the rotating rod 61 rotates to drive the rotating cylinder 5 to synchronously rotate through the two bevel gears 62 which are connected in a meshing manner, because the movable rod 2 is limited by the limit block 7 and can only vertically reciprocate, when the rotating cylinder 5 rotates, the movable rod 2 is driven to move downwards, the movable rod 2 moves downwards to drive the scissor rack 4 to synchronously open, and is contacted with the pressure pipeline to be detected through the rubber block 9, so as to center and fix the pressure pipeline, after that, the carriage 632 stops being pulled outwards, and the spring 633 compressed by the force will rebound immediately, and simultaneously push the sliding rack 632 to move leftwards, finally the insertion blocks uniformly arranged on the left end surface of the sliding rack 632 are inserted with the insertion grooves correspondingly arranged on the right end surface of the fixed ring 631 again, thereby limiting the rotating rod 61 and the accessory mechanism thereof, avoiding the damage to the inner wall of the pressure pipeline during the centering operation due to the arrangement of the rubber block 9, then the inner wall of the pressure pipeline is detected by the detection probe, the accuracy and the stability of the pressure pipeline in detection are greatly improved, meanwhile, the operation of workers is convenient, the arrangement of the second spring 8 can increase the friction force of the rotary combination of the movable rod 2 and the rotary cylinder 5, when the pressure pipeline needs to be released after detection is finished, the pressure pipeline which is finished in detection can be taken down only by reversely operating the steps.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a pipeline under pressure detects uses centering mechanism which characterized in that: comprises a supporting tube (1) and a driving unit (6);

support tube (1): the top wall surface of the rotary knife is rotatably connected with a rotary cylinder (5) through a bearing, an inner cavity of the rotary cylinder (5) is in threaded connection with a movable rod (2), the upper end of the movable rod (2) penetrates through a through hole formed in the middle of a supporting tube (1) and extends to the outside, mounting seats (3) are arranged at the upper end of an outer arc surface of the supporting tube (1) and the upper end of an outer arc surface of the movable rod (2), and shear frames (4) which are uniformly distributed are rotatably connected between two vertically adjacent mounting seats (3) through a rotating shaft;

drive unit (6): is arranged at the lower end of the supporting tube (1), and the driving unit (6) is fixedly connected with the outer cambered surface of the rotating cylinder (5).

2. The centering mechanism for pressure pipe detection according to claim 1, wherein: drive unit (6) are including dwang (61), conical gear (62) and spacing subassembly (63), dwang (61) are rotated through the bearing and are connected in the dwang that stay tube (1) extrados lower extreme set up in the dwang, and the inboard end of dwang (61) and the extrados of a rotating cylinder (5) all are equipped with conical gear (62), and two conical gear (62) meshing are connected, and spacing subassembly (63) set up in the lower extreme of stay tube (1), spacing subassembly (63) and the right wall fixed connection of dwang (61).

3. The centering mechanism for pressure pipe detection according to claim 2, wherein: spacing subassembly (63) are including solid fixed ring (631) and carriage (632), gu fixed ring (631) sets up in the extrados lower extreme of stay tube (1), sliding connection has carriage (632) in the cross spout that dwang (61) right-hand member set up, and the inserted block that carriage (632) left end face evenly set up pegs graft with the slot that gu fixed ring (631) right-hand member face corresponds the setting respectively.

4. The centering mechanism for pressure pipe detection according to claim 3, wherein: spacing subassembly (63) still include spring (633), spring (633) set up in the right wall of dwang (61), and the left end of spring (633) contacts with the right-hand member face of carriage (632), and spring (633) are established with the outside activity cover of dwang (61).

5. The centering mechanism for pressure pipe detection according to claim 1, wherein: the limiting device is characterized in that a limiting block (7) is arranged at the upper end of a through hole formed in the middle of the supporting tube (1), and the limiting block (7) is connected with a limiting groove formed in the outer arc surface of the moving rod (2) in a sliding mode.

6. The centering mechanism for pressure pipe detection according to claim 1, wherein: a second spring (8) is arranged between the top wall surface of the movable rod (2) and the bottom wall surface of the supporting tube (1), and the second spring (8) is movably sleeved with the outer part of the movable rod (2).

7. The centering mechanism for pressure pipe detection according to claim 1, wherein: the outer ends of the scissor holders (4) are provided with rubber blocks (9).

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