Expansion equipment for pipeline repair

Abstract

The utility model discloses expansion equipment for pipeline repair, which comprises two insertion mechanisms, each insertion mechanism comprises an upper half ring and a lower half ring, the upper half ring is rotatably connected with the lower half ring, the inner part of each of the upper half ring and the lower half ring is slidably connected with two moving rods, and the upper half ring and the lower half ring are movably connected with the two moving rods. Inserting blocks are fixed to the opposite sides of the upper moving rod and the lower moving rod correspondingly, fixing plates are integrally formed at the left ends of the upper half ring and the lower half ring correspondingly, and fixing holes penetrating up and down are formed in the tops of the fixing plates. According to the expansion equipment for pipeline repair, the insertion mechanism is arranged on the outer side of the pipeline flange connecting position in a sleeving mode, the insertion block is inserted into the flange connecting position, then a moving rod is hammered through a hammer, the insertion block is inserted into the position between two pipelines, a crowbar does not need to prize the insertion block, and after the insertion block is inserted, a wrench is used for rotating a two-way screw rod; and the bidirectional screw rotates to separate the moving sleeve from the insertion mechanism, so that the joint of the pipeline can be expanded, and the insertion and expansion are relatively stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline expansion technical field, concretely is a kind of expansion equipment for pipeline repair. BACKGROUND

[0002] When valve needs to be disassembled due to failure, the two side pipes often press the valve tightly, making it difficult to disassemble, and the O-ring of the valve is also easily damaged during installation.

[0003] After searching, the existing patent (publication number: CN220516616U) discloses a pipeline gap expander, relating to valve maintenance technical field, comprising a lower fixed ring and an upper fixed ring, the lower fixed ring and the upper fixed ring are provided with openings on one side, which can be sleeved into the pipeline during use;The side surface of the lower fixed ring and the upper fixed ring is provided with a plurality of clamping jaw assemblies for clamping the pipeline, and a lifting assembly is arranged between the lower fixed ring and the upper fixed ring. The utility model is composed of two notched lower fixed rings and upper fixed rings, and the two fixed rings are connected by a screw rod. Each fixed ring has three clamping jaw assemblies arranged at an angle of 120°. During use, the lower fixed ring and the upper fixed ring are fixed at the lower end and the upper end of the pipeline respectively, and the pipeline is clamped and fixed by the three clamping jaw assemblies. Adjust the nut on the lifting screw rod to move the lower fixed ring and the upper fixed ring away, thereby expanding the pipeline gap. The pipeline gap expander has simple structure and convenient operation.

[0004] It has the following disadvantages: it only clamps the outer wall of the pipeline, and it is manually rotated to clamp the outer wall of the pipeline. The clamping is not tight, and it is difficult to separate the two pipelines. Even if the two pipelines are separated, the pipelines may be closed again, which is very unstable. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides an expansion equipment for pipeline repair, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: an expansion equipment for pipeline repair, comprising two insertion mechanisms, the insertion mechanism comprises an upper half ring and a lower half ring, the upper half ring and the lower half ring are rotationally connected, two moving rods are slidably connected inside the upper half ring and the lower half ring, the opposite sides of the moving rods are fixed with insertion blocks, the left ends of the upper half ring and the lower half ring are integrally formed with fixed plates, the top of the fixed plate is provided with a fixed hole penetrating upward and downward, the two fixed plates are fixedly connected by bolts and nuts, the outer side of the upper half ring is provided with a bidirectional screw rod, the outer wall of the bidirectional screw rod is screwed with two threaded sleeves, and the threaded sleeves and the outer wall of the upper half ring are fixedly connected.

[0007] Preferably, the two ends of the bidirectional screw are fixed with hexagonal blocks.

[0008] Preferably, the opposite sides of the left and right insertion blocks are fixed with baffles.

[0009] Preferably, the end of the moving rod away from the insertion block is fixed with a stop block, the outer side wall of the moving rod is fixed with a tension spring, the ends of the upper and lower tension springs close to the insertion block are fixedly connected with the outer side walls of the upper and lower half rings respectively, and the other ends of the tension springs are fixedly connected with the stop block.

[0010] Preferably, the interiors of the upper and lower half rings are slidably connected with two limit rods, the upper and lower ends of the upper limit rod and the upper and lower ends of the lower limit rod are fixed with upper and lower fixed rings respectively, the upper and lower fixed rings are rotatably connected, the front ends of the upper and lower fixed rings are integrally formed with fixed plates, the two fixed plates are fixedly connected through bolts and nuts, the interiors of the upper and lower fixed rings are screwed with moving screw rods, the inner ends of the moving screw rods are fixed with clamping blocks, and the other ends of the moving screw rods are fixed with rotating blocks.

[0011] Preferably, the outer side wall of the bidirectional screw is rotatably connected with a limit block, and the front upper limit rod passes through the limit block.

[0012] Beneficial effects

[0013] The utility model provides a kind of expansion equipment for pipeline repair.Compared with prior art, it has the following beneficial effects:

[0014] 1, the expansion equipment for pipeline repair, by setting insertion mechanism, bidirectional screw and threaded sleeve, the insertion mechanism is covered in the outer side of pipeline flange connection, so that the insertion block is inserted in flange connection, then using hammer to hammer moving rod, so that the insertion block is inserted between two pipes, without crowbar pry open, after the insertion block is inserted, using spanner to rotate bidirectional screw, bidirectional screw rotation makes moving sleeve and insertion mechanism separate, so that the pipeline connection can be expanded, so that insertion expansion is more stable.

[0015] 2, the expansion equipment for pipeline repair, by setting baffle and tension spring, the outer side of flange is blocked by baffle, so that insertion block can be prevented from inserting too deep, and tension spring can pull insertion block to pipe side, so that insertion block can be prevented from moving out of the outer side of pipe. ACCURACY OF DRAWINGS

[0016] Fig. 1 It is a structural schematic diagram of the utility model;

[0017] Fig. 2The structure diagram of two insertion mechanisms in the utility model;

[0018] Fig. 3 The structure diagram of the upper half ring and the lower half ring in the utility model.

[0019] In the figure: 1, limit rod; 2, limit block; 3, hexagonal block; 4, bidirectional screw rod; 5, threaded sleeve; 6, bolt nut; 7, lower fixed ring; 8, clamping block; 9, moving screw rod; 10, rotating block; 11, insertion mechanism; 1101, lower half ring; 1102, insertion block; 1103, baffle; 1104, moving rod; 1105, tension spring; 1106, stop block; 1107, upper half ring; 12, upper fixed ring; 13, fixed plate; 14, fixed hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a kind of expansion equipment for pipeline repair, including two insertion mechanisms 11, insertion mechanism 11 includes upper half ring 1107 and lower half ring 1101, upper half ring 1107 and lower half ring 1101 are rotatably connected between, the inside of upper half ring 1107 and lower half ring 1101 is slidably connected with two moving rods 1104, the opposite side of upper and lower moving rod 1104 is fixed with insertion block 1102, the left end of upper half ring 1107 and lower half ring 1101 is integrally formed with fixed plate 13, and the top of fixed plate 13 is provided with the fixed hole 14 that passes through up and down, two fixed plates 13 are fixedly connected by bolt nut 6, the outside of upper half ring 1107 is equipped with bidirectional screw rod 4, the outer wall of bidirectional screw rod 4 is screwed with two threaded sleeves 5, and threaded sleeve 5 and the outer wall of upper half ring 1107 are fixedly connected, so as to be convenient for inserting between two pipelines, and it is very stable after separating pipeline, and the two ends of bidirectional screw rod 4 are fixed with hexagonal block 3, so as to be convenient for rotating bidirectional screw rod 4, and the opposite side of left and right two insertion blocks 1102 is fixed with baffle 1103, so as to prevent insertion block 1102 from inserting too deep.

[0022] Further, the end of the moving rod 1104 away from the plug block 1102 is fixed with a stop block 1106, the outer side wall of the moving rod 1104 is fixed with a tension spring 1105, the ends of the upper and lower two tension springs 1105 close to the plug block 1102 are fixedly connected with the outer side walls of the upper half ring 1107 and the lower half ring 1101 respectively, and the other end of the tension spring 1105 is fixedly connected with the stop block 1106, so that the plug block 1102 can be close to the pipeline and cannot be moved out.

[0023] Further, the interiors of the upper half ring 1107 and the lower half ring 1101 are slidably connected with two limiting rods 1, the upper and lower ends of the upper limiting rod 1 and the upper and lower ends of the lower limiting rod 1 are fixedly connected with an upper fixed ring 12 and a lower fixed ring 7 respectively, the upper fixed ring 12 and the lower fixed ring 7 are rotatably connected, the front ends of the upper fixed ring 12 and the lower fixed ring 7 are integrally formed with a fixed plate 13, the two fixed plates 13 are fixedly connected through a bolt and a nut 6, and the interiors of the upper fixed ring 12 and the lower fixed ring 7 are screwed with a moving screw rod 9, the inner end of the moving screw rod 9 is fixed with a clamping block 8, and the other end of the moving screw rod 9 is fixed with a rotating block 10, so that the plug-in mechanism 11 can be fixed on the pipeline.

[0024] Further, the outer side wall of the bidirectional screw rod 4 is rotatably connected with a limiting block 2, the front upper limiting rod 1 penetrates through the limiting block 2, and the limiting block 2 is fixedly connected with the limiting rod 1, so that the bidirectional screw rod 4 can be stable.

[0025] When working, the device is sleeved on the outer side of the pipeline, the plug-in mechanism 11 is located at the flange connection of the pipeline, the bolt and the nut 6 are used to fixedly connect the upper fixed ring 12 and the lower fixed ring 7 and the upper half ring 1107 and the lower half ring 1101, then the rotating block 10 is rotated, the rotating block 10 is rotated with the moving screw rod 9, the moving screw rod 9 is moved with the clamping block 8, and the clamping block 8 clamps the pipeline, so that the device can be fixed on the outer side of the pipeline, then the plug block 1102 is inserted at the flange connection, a hammer is used to hammer the upper stop block 1106, the upper stop block 1106 is moved with the moving rod 1104 and the plug block 1102, the plug block 1102 is inserted between the two pipelines, the pipeline does not need to be pried open, after the plug block 1102 is inserted, the baffle 1103 is blocked with the outer side wall of the flange structure, the wrench is used to rotate the hexagonal block 3, the hexagonal block 3 is rotated with the bidirectional screw rod 4, the bidirectional screw rod 4 is rotated to separate the two threaded sleeves 5 and the two plug-in mechanisms 11, and the plug block 1102 separates the two pipelines, so that the pipeline connection can be expanded to facilitate repair.

[0026] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0027] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0028] While embodiments of the present application have been shown and described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the spirit and scope of the present application, which should be limited only by the scope of the appended claims and the equivalents thereof.

Claims

1. Expansion device for pipe repair, comprising two insertion mechanisms (11), characterized in that: The inserting mechanism (11) comprises an upper half ring (1107) and a lower half ring (1101), the upper half ring (1107) and the lower half ring (1101) are rotationally connected, the interiors of the upper half ring (1107) and the lower half ring (1101) are slidably connected with two moving rods (1104), the opposite sides of the moving rods (1104) are fixed with inserting blocks (1102), the left ends of the upper half ring (1107) and the lower half ring (1101) are integrally formed with fixing plates (13), the top of the fixing plate (13) is provided with a fixing hole (14) penetrating through the upper and lower fixing plates (13), the two fixing plates (13) are fixedly connected through bolts and nuts (6), the outer side of the upper half ring (1107) is provided with a bidirectional screw rod (4), the outer wall of the bidirectional screw rod (4) is screwed with two threaded sleeves (5), and the threaded sleeves (5) and the outer wall of the upper half ring (1107) are fixedly connected.

2. An expansion apparatus for pipe rehabilitation according to claim 1, characterized in that: The two ends of the bidirectional screw rod (4) are fixedly connected with hexagonal blocks (3).

3. A dilation device for pipe repair according to claim 2, wherein: The opposite sides of the left and right inserting blocks (1102) are fixedly connected with baffles (1103).

4. A dilation device for pipe repair according to claim 3, wherein: The end of the moving rod (1104) away from the inserting block (1102) is fixedly connected with a stop block (1106), the outer wall of the moving rod (1104) is fixedly connected with a tension spring (1105), the ends of the upper and lower tension springs (1105) close to the inserting block (1102) are fixedly connected with the outer walls of the upper half ring (1107) and the lower half ring (1101), and the other end of the tension spring (1105) is fixedly connected with the stop block (1106).

5. A dilation device for pipe repair according to claim 4, wherein: The interiors of the upper half ring (1107) and the lower half ring (1101) are slidably connected with two limiting rods (1), the two ends of the upper limiting rod (1) and the two ends of the lower limiting rod (1) are fixedly connected with an upper fixed ring (12) and a lower fixed ring (7), the upper fixed ring (12) and the lower fixed ring (7) are rotationally connected, the front ends of the upper fixed ring (12) and the lower fixed ring (7) are integrally formed with fixing plates (13), the two fixing plates (13) are fixedly connected through bolts and nuts (6), the interiors of the upper fixed ring (12) and the lower fixed ring (7) are screwed with moving screw rods (9), the inner ends of the moving screw rods (9) are fixedly connected with clamping blocks (8), and the other end of the moving screw rod (9) is fixedly connected with a rotating block (10).

6. A dilation device for pipe repair according to claim 5, wherein: The outer wall of the bidirectional screw rod (4) is rotationally connected with a limiting block (2), the front upper limiting rod (1) penetrates through the limiting block (2), and the limiting block (2) and the limiting rod (1) are fixedly connected.

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