A pipeline joint repair device

Abstract

The present invention provides a pipeline joint repair device, belonging to the technical field of pipeline construction. The technical solution is as follows: a movable frame, the frame includes a bottom plate and a top plate, an upper vertical plate is arranged below the top plate, a lower vertical plate is arranged on the bottom plate, and the upper vertical plate and the lower vertical plate are connected by a fixed annular plate; semi-circular annular protrusions are concentrically arranged on the outer walls of the fixed annular plate and the movable annular plate, an annular slideway is arranged through the annular protrusion along the axis direction of the fixed annular plate, a slide plate is arranged in the annular slideway, and limiting baffles are arranged at both ends of the slide plate and outside the annular protrusion; connecting rods are rotatably arranged on the fixed shafts, the other ends of the connecting rods are hinged with vertical rods, and a limiting port is arranged on the top plate; a fixing structure of a heater is arranged on the limiting baffle; and a power mechanism for driving the vertical rod to move in the vertical direction is further included. The beneficial effect of the present invention is that it can assist manual heating of the heat shrinkable sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline construction, and particularly to a pipeline joint repair device. Background Art

[0002] As is well known, pipelines are widely used in many industries such as petroleum, chemical industry, electric power, communication, municipal administration and construction, and the usage environment is also relatively complex. In order to ensure the service life of pipelines, anti-corrosion treatment needs to be carried out on the pipelines, and generally PE materials are used for anti-corrosion treatment. Especially at the joints of pipeline interfaces, anti-corrosion is very important. At present, the commonly used anti-corrosion method is to adopt the heat-shrinkable sleeve joint repair technology, that is, heating the heat-shrinkable sleeve and then sleeving it on the joint of the pipeline. After the heat-shrinkable sleeve cools and shrinks naturally, it is fixed at the joint to achieve the anti-corrosion purpose.

[0003] At present, the heating of the heat-shrinkable sleeve is generally carried out manually with a heater in hand. Especially, the heating of the heat-shrinkable sleeve needs to be carried out repeatedly in multiple variations, which is time-consuming and laborious. Especially when heating large-diameter pipelines, generally two people stand opposite each other and hold the heater to heat the heat-shrinkable sleeve, which has certain safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide a pipeline joint repair device that can assist manual heating of the heat-shrinkable sleeve.

[0005] The present invention is achieved by the following measures: A pipeline joint repair device, characterized in that it includes a movable frame, the frame includes a bottom plate and a top plate, an upper vertical plate is arranged below the top plate, a lower vertical plate is arranged at a position corresponding to the upper vertical plate on the bottom plate, and the upper vertical plate and the lower vertical plate are connected by a semi-circular fixed annular plate;

[0006] It also includes a semi-circular movable annular plate that can be spliced with the fixed annular plate to form a circle. Semi-circular annular protrusions are concentrically arranged on the outer walls of the fixed annular plate and the movable annular plate. An annular slideway is penetrated along the axis direction of the fixed annular plate on the annular protrusion, and a slide plate is slidably arranged in the annular slideway. Limiting baffles are arranged at both ends of the slide plate and outside the annular protrusion, and the outer ends of the two limiting baffles are connected by a fixed shaft;

[0007] Connecting rods are rotatably arranged on the fixed shafts, the other ends of the connecting rods are hinged with vertical rods, a limiting opening allowing the vertical rods to slide in the vertical direction is arranged on the top plate, and the upper ends of the two vertical rods both extend out of the top plate and are connected by a rod;

[0008] A fixing structure for the heater is arranged on the limiting baffle, the heater is arranged on the fixing structure, and the nozzle of the heater faces the center of the fixed annular plate;

[0009] It further includes a power mechanism for driving the vertical rod to move in the vertical direction. The vertical rod moves up and down along the limiting opening, and the sliding plate moves along the annular slideway.

[0010] Generally, the heater adopts a liquefied gas multi-head flame spray gun.

[0011] Both the connecting rod and the vertical rod are in a vertical state, and the connecting rod is in a horizontal state.

[0012] The fixing structure includes a screw rod and a fixing plate provided at any end of the screw rod. A U-shaped rod is provided on the fixing plate. The heater is arranged in the U-shaped rod and fixed on the fixing plate by a nut. The screw rod is fixed on the limiting baffle by a nut. Multiple U-shaped rods can be provided.

[0013] A rectangular opening is provided on the limiting opening on the same side as the fixed annular plate. The opening end of the rectangular opening is far from the heater and on a different side from the heater. The power mechanism includes a rack arranged in the rectangular opening. The rack is fixed on the vertical rod. A gear is rotatably provided at the lower end of the top plate. The gear is driven by a motor capable of forward and reverse rotation. The motor is fixed below.

[0014] A rectangular opening is provided on the limiting opening on the same side as the fixed annular plate. The opening end of the rectangular opening is far from the heater and on a different side from the heater. The power mechanism includes a driving rod arranged outside the vertical rod. The driving rod can pass through the rectangular opening. The driving rod is driven by a telescopic mechanism capable of reciprocating.

[0015] A long strip hole is provided on the limiting baffle. The screw rod is arranged in the long strip hole. In this way, the distance between the heater and the heat shrinkable sleeve can be adjusted at any time.

[0016] The movable annular plate is arranged on the upper vertical plate and the lower vertical plate in a detachable manner. In this way, the movable annular plate can be separated from the fixed annular plate during installation, and the movable annular plate can be rotated upwards without affecting the installation. In this way, it can be applied to the already installed pipeline.

[0017] Annular channels are provided on the side walls of the fixed annular plate and the movable annular plate. An arc-shaped plate is provided on the inner wall of the sliding plate through a spring. The arc-shaped plate can abut against the outer wall of the pipeline.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: it can assist manual heating of the heat shrink sleeve; the vertical rod moves up and down along the limiting opening, and the sliding plate moves along the annular slideway, ensuring that the distance between the heater and the heat shrink sleeve always remains the same; the movable annular plate is arranged on the upper vertical plate and the lower vertical plate in a detachable manner, so that during installation, as long as the movable annular plate is separated from the fixed annular plate, it can be directly installed, especially suitable for the installation of the heat shrink sleeve of the already installed pipeline and the repair of the heat shrink sleeve of the in-service pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Figure 2 For Figure 1 A schematic diagram of the structure at a different angle.

[0021] Figure 3 For Figure 2 The partial enlarged view at A in

[0022] Figure 4 It is a schematic diagram of the structure of the frame and its related parts.

[0023] Figure 5 It is a schematic diagram of the structure of the sliding plate and its related parts.

[0024] Figure 6 It is a schematic diagram of the structure with the movable annular plate rotated to a high position.

[0025] Figure 7 It is a schematic diagram of the structure of Embodiment 2.

[0026] Figure 8 It is a reference diagram of the usage state with the heater at a high position.

[0027] Figure 9 It is a reference diagram of the usage state with the heater at a low position.

[0028] Among them, the reference numerals are: 1, frame; 2, fixed annular plate; 3, movable annular plate; 4, fixing structure; 5, heater; 6, power mechanism; 7, sliding plate; 8, connecting rod; 9, vertical rod; 10, annular slideway; 11, annular channel; 13, boss; 101, bottom plate; 102, top plate; 103, lower vertical plate; 104, upper vertical plate; 105, wheel; 1021, limiting hole; 1022, rectangular opening; 401, screw; 402, fixing plate; 403, U-shaped rod; 601, housing; 602, push rod; 603, gear; 604, motor; 605, rack; 701, limiting baffle; 702, long strip hole; 703, fixed shaft; 704, spring; 705, arc-shaped plate; 1021, limiting opening; 1022, rectangular opening. Detailed implementation manners

[0029] To clearly illustrate the technical features of this solution, the following elaborates on this solution through specific implementation manners.

[0030] Embodiment 1:

[0031] Refer to Figures 1-6 , a pipeline joint repair device, which is characterized in that it includes a movable frame 1. The frame 1 includes a bottom plate 101 and a top plate 102. Below the top plate 102, an upper vertical plate 104 is provided. At a position corresponding to the bottom plate 101 and the upper vertical plate 104, a lower vertical plate 103 is provided. The upper vertical plate 104 and the lower vertical plate 103 are connected by a semi-circular fixed annular plate 2;

[0032] It also includes a semi-circular movable annular plate 3 that can be spliced with the fixed annular plate 2 to form a circle. On the outer walls of the fixed annular plate 2 and the movable annular plate 3, semi-circular annular bosses 13 are concentrically provided. An annular slideway 10 is provided through the annular boss 13 along the axial direction of the fixed annular plate 2. A sliding plate 7 is slidably arranged in the annular slideway 10. At both ends of the sliding plate 7 and outside the annular boss 13, limiting baffles are provided. The outer ends of the two limiting baffles are connected by a fixed shaft 703;

[0033] Connecting rods 8 are rotatably arranged on the fixed shaft 703. The other ends of the connecting rods 8 are hinged with vertical rods 9. On the top plate 102, a limiting opening 1021 allowing the vertical rods 9 to slide in the vertical direction is provided. The upper ends of the two vertical rods 9 both extend out of the top plate 102 and are connected by a rod;

[0034] A fixing structure 4 of the heater 5 is provided on the limiting baffle 701. The heater 5 is arranged on the fixing structure 4. The nozzle of the heater 5 faces the axis of the fixed annular plate 2;

[0035] It also includes a power mechanism for driving the vertical rod 9 to move in the vertical direction. The vertical rod 9 moves up and down along the limiting opening 1021, and the sliding plate 7 moves along the annular slideway 10.

[0036] The connecting rod 8 and the vertical rod 9 are both in a vertical state, and the connecting rod 8 is in a horizontal state.

[0037] The fixing structure includes a screw 401 and a fixing plate 402 provided at any one end of the screw 401. A U-shaped rod 403 is provided on the fixing plate 402. The heater 5 is arranged in the U-shaped rod 403 and fixed on the fixing plate 402 by a nut. The screw 401 is fixed on the limit baffle 701 by a nut.

[0038] A rectangular opening 1022 is provided on the limit opening 1021 on the same side as the fixed annular plate 2. The opening end of the rectangular opening 1022 is far from the heater 5 and on a different side from the heater 5. The power mechanism 6 includes a driving rod arranged outside the vertical rod 9. The driving rod can pass through the rectangular opening 1022 and is driven by a telescopic mechanism that can reciprocate. The telescopic mechanism is generally an electric push rod. The housing 601 of the electric push rod is hinged on the frame 1, and the push rod 602 of the electric push rod is hinged on the driving rod.

[0039] The limit baffle 701 is provided with a long hole 702, and the screw 401 is arranged in the long hole.

[0040] The movable annular plate 3 is arranged on the upper vertical plate 104 and the lower vertical plate 103 in a detachable manner. The movable annular plate 3 is generally connected by bolts.

[0041] Annular channels 11 are provided on the side walls of both the fixed annular plate 2 and the movable annular plate 3. An arc-shaped plate 705 is arranged on the inner wall of the sliding plate 7 through a spring 704, and the arc-shaped plate 705 can abut against the outer wall of the pipeline.

[0042] A plurality of wheels 105 are symmetrically arranged on the bottom plate 101, which can facilitate movement along the pipeline. The wheels 105 can be electrically driven.

[0043] Usage method: Rotate the movable annular plate 3 to a high position, as Figure 6 shown. Push the fixed annular plate 2 to the pipeline provided with the heat shrinkable sleeve and then install and fix the movable annular plate 3 by bolts. The lower vertical plate 103 is preferably set to be telescopic, so as to facilitate adjusting the concentricity of the fixed annular plate 2 and the pipeline. Then install the heater 5 and adjust the position of the heater 5. Then start the power mechanism 6. The power mechanism 6 drives the vertical rod 9 to move up and down along the limit opening 1021. The sliding plate 7 moves along the annular slideway 10. The heater 5 heats the heat shrinkable sleeve. When the frame 1 moves forward driven by the wheels 105, the arc-shaped plate 705 is closely attached to the heat shrinkable sleeve under the action of the spring 704, so as to realize the extrusion of the heat shrinkable sleeve and ensure that the heat shrinkable sleeve fits on the pipeline. In the later stage, manual patching and compaction are required.

[0044] Embodiment Two:

[0045] SeeFigures 1-9 , which is only different from the first embodiment in the power mechanism 6. The other technical features are the same. A rectangular opening 1022 is provided on the limiting port 1021 on the same side as the fixed annular plate 2. The opening end of the rectangular opening 1022 is far away from the heater 5 and on a different side from the heater 5. The power mechanism 6 includes a rack 605 arranged in the rectangular opening 1022. The rack 605 is fixed on the vertical rod 9. A gear 603 is rotatably arranged at the lower end of the top plate 102. The gear 603 is driven by a motor 604 that can rotate forward and backward. The motor 604 is fixed below.

[0046] It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0048] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0049] The technical features not described in the present invention can be realized by or adopted the prior art, and will not be elaborated here. Of course, the above description is not a limitation to the present invention, and the present invention is not limited to the above examples. The changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention should also belong to the protection scope of the present invention.

Claims

1. A pipe patching device, It is characterized in that The machine comprises a movable frame, the frame comprising a bottom plate and a top plate, an upper vertical plate is arranged below the top plate, a lower vertical plate is arranged at a position of the bottom plate corresponding to the upper vertical plate, and the upper vertical plate and the lower vertical plate are connected by a semicircular fixed annular plate; It also includes a semicircular movable annular plate that can be spliced ​​with the fixed annular plate to form a circular shape, the outer walls of the fixed annular plate and the movable annular plate are both concentrically provided with semicircular annular bosses, an annular slideway is provided on the annular boss along the axis direction of the fixed annular plate, a slide plate is slidably provided in the annular slideway, and limit baffles are provided at both ends of the slide plate and on the outer side of the annular boss, and the outer ends of the two limit baffles are connected by a fixed shaft; A connecting rod is rotatably arranged on each of the fixed shafts, a vertical rod is hingedly arranged on the other end of each of the connecting rods, a limiting opening is arranged on the top plate to allow the vertical rod to slide in the vertical direction, and the upper ends of the two vertical rods extend out of the top plate and are connected by a rod; The limit baffle is provided with a fixing structure of a heater, the heater is arranged on the fixing structure, and the nozzle of the heater faces the axis center of the fixed annular plate; It also includes a driving mechanism for driving the vertical rod to move in the vertical direction, the vertical rod moves up and down along the limiting opening, and the slide plate moves along the annular slideway.

2. The pipeline patching device according to claim 1, It is characterized in that The connecting rod and the vertical rod are both in a vertical state, and the connecting rod is in a horizontal state.

3. The pipeline patching device according to claim 1, It is characterized in that The fixing structure includes a screw rod and a fixing plate arranged at either end of the screw rod, the fixing plate is provided with a U-shaped rod, the heater is arranged in the U-shaped rod and fixed to the fixing plate by a nut, and the screw rod is fixed to the limit baffle by a nut.

4. The pipeline patching device according to claim 1, It is characterized in that A rectangular opening is arranged on the limiting opening on the same side as the fixed annular plate, the opening end of the rectangular opening is away from the heater and is located on a different side from the heater, the driving mechanism includes a rack arranged in the rectangular opening, the rack is fixed on the vertical rod, a gear is rotatably arranged at the lower end of the top plate, the gear is driven by a motor capable of forward and reverse rotation, and the motor is fixed at the bottom.

5. The pipeline patching device according to claim 1, It is characterized in that A rectangular opening is arranged on the limiting opening on the same side as the fixed annular plate, the opening end of the rectangular opening is away from the heater and is located on a different side from the heater, the driving mechanism includes a driving rod arranged on the outside of the vertical rod, the driving rod can pass through the rectangular opening, and the driving rod is driven by a reciprocating telescopic mechanism.

6. The pipeline patching device according to claim 3, It is characterized in that The limit baffle is provided with an elongated hole, and the screw rod is arranged in the elongated hole.

7. The pipeline patching device according to claim 1, It is characterized in that The movable annular plate is arranged on the upper vertical plate and the lower vertical plate in a detachable manner.

8. The pipeline joint repair device according to claim 1, characterized in that, annular channels are arranged on the side walls of the fixed annular plate and the movable annular plate, an arc-shaped plate is arranged on the inner wall of the sliding plate through a spring, and the arc-shaped plate can abut against the outer wall of the pipeline.

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