A blow plug for line cleaning

By designing a blow-blocking device with adjustment and sealing mechanisms, the problems of existing blow-blocking interfaces being unable to be adjusted in angle and the sealing points being unable to be opened simultaneously have been solved, thus enabling convenient operation of the blow-blocking equipment.

CN117619833BActive Publication Date: 2025-12-05HUANENG LIAOCHENG THERMAL POWER CO LTD
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Patent Information

Application Number
CN202311345648.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-18
Publication Date
2025-12-05
Estimated Expiration
2043-10-18

AI Technical Summary

Technical Problem

The existing blow-blocking interface cannot be angled after the blow-blocking device is inserted, and the closed part cannot be opened simultaneously when inserted, making operation inconvenient.

Method used

A blow-stop device including an interface mechanism and a sealing mechanism was designed. By cooperating with the adjustment component and the rotation component, the angle adjustment and the sealing point can be opened simultaneously. Utilizing the structure of the ball cavity, vertical hole, movable cavity, sealing cavity and annular cavity, combined with the rotation of the rotation component and the sealing block and the hinged sealing block, the switching between the angle adjustment and sealing states can be realized.

Benefits of technology

The device allows for angle adjustment after insertion of the blow-off device and automatically opens the closure upon insertion, improving operational convenience and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of pipeline blowing and plugging, in particular to a blowing and plugging device for pipeline cleaning, which comprises an interface mechanism, a fixing seat fixed on the side wall of a pipeline, and an adjusting assembly arranged in the fixing seat; a closing mechanism, a rotating assembly arranged in the fixing seat and a closing assembly arranged on the side wall of the rotating assembly. Through the cooperation of the interface mechanism and the closing mechanism, angle adjustment can be conducted after the blowing and plugging device is inserted, and the closing part can be opened at the same time when the blowing and plugging device is inserted.
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Description

Technical Field

[0001] This invention relates to the field of pipeline purging, and in particular to a purging device for pipeline cleaning. Background Technology

[0002] Due to localized pressure loss, 90% of pipe blockages are concentrated at locations where localized resistance loss occurs, such as bends, inclines, and declines in the pipeline. A blow-blocking interface is an interface used in pipeline systems for cleaning and blockage removal. Blow-blocking interfaces are typically used to remove dirt, deposits, or blockages from pipelines to maintain unobstructed and normal operation. Existing blow-blocking interfaces can be connected to blow-blocking devices, such as blow-blocking balls or blow-blocking bullets, to remove obstacles from pipelines by increasing pressure or using physical force. Alternatively, a blow-blocking tube can be inserted to use compressed air as a cleaning medium.

[0003] Existing blow-blocking interfaces are usually fixed, and operators cannot adjust the angle after inserting the blow-blocking device, which means that the blow-blocking device can only be used for cleaning. Operators usually have to remove the screws to open the closure before inserting the blow-blocking device, which is very inconvenient. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the invention, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing blow-blocking interfaces, such as the inability to adjust the angle after inserting the blow-blocking device and the inability to open the closure at the same time when inserting the blow-blocking device, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a blow-off device for pipeline cleaning, which can not only adjust the angle after inserting the blow-off device, but also open the closure at the same time as inserting the blow-off device.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a blow-blocking device for pipeline cleaning, comprising an interface mechanism, which includes a fixed seat fixed on the side wall of the pipeline and an adjustment component disposed in the fixed seat; and a sealing mechanism, which includes a rotating component and a sealing component disposed in the fixed seat, wherein the sealing component is disposed on the side wall of the rotating component.

[0008] As a preferred embodiment of the blow-blocking device for pipeline cleaning described in this invention, the fixed base is provided with a ball cavity, a vertical hole penetrating the radial direction of the ball cavity, a movable cavity and a closed cavity arranged sequentially in the axial direction of the ball cavity, a first locking hole penetrating the radial direction of the closed cavity, and an annular cavity connecting the vertical hole and the closed cavity.

[0009] As a preferred embodiment of the pipe cleaning and purging device of the present invention, the adjusting component includes a ball component rotatably disposed in a ball cavity, the ball component including a ball block, the ball block having a first insertion hole penetrating the ball block, a second insertion hole perpendicular to the first insertion hole, and a first spring cavity located in the middle section of the second insertion hole; an insertion post is slidably disposed in the second insertion hole, the insertion post being sleeved with a first spring, the first spring being located in the first spring cavity, and the two ends of the insertion post being rounded.

[0010] As a preferred embodiment of the pipe cleaning and purging device of the present invention, wherein: a first vertical surface and a first inclined surface are provided at one end of the vertical column, the first vertical surface is parallel to the axis of the vertical column, and one end of the first inclined surface is connected to one end of the first vertical surface.

[0011] In a preferred embodiment of the purging device for pipeline cleaning described in this invention, the rotating assembly includes a rotating ring rotatably disposed in an annular cavity, a rotating plate rotatably disposed in a closed cavity, and a slide block disposed on the side wall of the rotating plate, wherein the rotating ring, rotating plate, and slide block are integrally disposed; the rotating ring has a second vertical surface and a second inclined surface at the end away from the rotating plate, the second vertical surface is parallel to the axis of the rotating ring, and one end of the second inclined surface is connected to one end of the second vertical surface; a second locking hole is provided on the radial side wall of the rotating plate, and the second locking hole communicates with the first locking hole.

[0012] In a preferred embodiment of the pipe cleaning and blotting device of the present invention, the rotating assembly further includes a pin inserted into the first lock hole and the second lock hole, and the pin has a large frictional force with the walls of the first lock hole and the second lock hole.

[0013] As a preferred embodiment of the blow-blocking device for pipeline cleaning described in this invention, the sealing component consists of multiple sealing blocks, the sealing blocks are hinged in the sealing cavity on the side away from the movable cavity, the sealing blocks are provided with sliding grooves, and a second spring cavity is located on the side of the sliding grooves that extend into the sealing blocks.

[0014] In a preferred embodiment of the pipe cleaning and blotting device of the present invention, a second spring is provided in the second spring cavity, the slide block is slidably disposed in the slide block groove, and one end of the second spring contacts the side wall of the slide block.

[0015] As a preferred embodiment of the purging device for pipeline cleaning described in this invention, the sealing block includes a first arc surface, a second arc surface, and a third arc surface, wherein the first arc surfaces of all the sealing blocks can form a complete circle, and the second and third arc surfaces have the same radius.

[0016] In a preferred embodiment of the blow-blocking device for pipeline cleaning described in this invention, the second arc surface of all the sealing blocks contacts the third arc surface of the adjacent sealing blocks and fits them completely.

[0017] The beneficial effects of the present invention are as follows: The blow-blocking device for pipeline cleaning described in the present invention, through the cooperation of the interface mechanism and the sealing mechanism, can not only adjust the angle after inserting the blow-blocking device, but also open the sealing part at the same time as inserting the blow-blocking device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 A schematic diagram of the overall structure of a blow-blocking device used for pipeline cleaning;

[0020] Figure 2 An exploded view of a blowing device used for pipeline cleaning;

[0021] Figure 3 This is a sectional view of the fixed base;

[0022] Figure 4 To adjust the sectional view of the component;

[0023] Figure 5 This is a schematic diagram of the rotating assembly.

[0024] Figure 6 This is a schematic diagram of the front structure of the sealing block;

[0025] Figure 7 This is a schematic diagram of the back structure of the sealing block;

[0026] Figure 8 This is a plan sectional view of a blotting device used for pipeline cleaning. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a blow-blocking device for pipeline cleaning, specifically including an interface mechanism 100, which includes a fixed seat 101 fixed on the side wall of the pipeline W, and an adjustment component 102 disposed in the fixed seat 101; and a sealing mechanism 200, which includes a rotating component 201 and a sealing component 202 disposed in the fixed seat 101, the sealing component 202 being disposed on the side wall of the rotating component 201.

[0032] Furthermore, the fixed base 101 has a ball cavity H-1, a vertical hole H-2 penetrating the ball cavity H-1 radially, a movable cavity H-3 and a closed cavity H-4 penetrating the ball cavity H-1 axially and arranged sequentially, a first locking hole H-5 penetrating the closed cavity H-4 radially, and an annular cavity H-6 connecting the vertical hole H-2 and the closed cavity H-4; the adjusting assembly 102 includes a ball component 102a rotatably disposed in the ball cavity H-1, the ball component 102a includes a ball block 102a-1, the ball block 102a-1 has a first insertion hole K-1 penetrating the ball block 102a-1, a second insertion hole K-2 perpendicular to the first insertion hole K-1, and a first spring cavity K-3 located in the middle section of the second insertion hole K-2.

[0033] It should be noted that: Spherical cavity H-1 is a spherical cavity with circular openings on both sides of spherical cavity H-1, and the openings are of the same size; Vertical hole H-2 is a cylindrical hole; the axis of vertical hole H-2 is perpendicular to the line connecting the centers of the two openings on both sides of spherical cavity H-1; Movable cavity H-3 is a cylindrical cavity; the diameter of movable cavity H-3 is larger than the diameter of spherical cavity H-1, which is beneficial for providing movement space for the inserted purging device; Closed cavity H-4 is a cylindrical cavity, and the diameter of closed cavity H-4 is larger than the diameter of movable cavity H-3; Annular cavity H-6 is a circular ring cavity... The outer diameter of the annular cavity H-6 is the same as the diameter of the closed cavity H-4. The inner diameter of the annular cavity H-6 is smaller than the diameter of the closed cavity H-4. The annular cavity H-6 connects to the middle section of the vertical hole H-2. The spherical block 102a-1 is a sphere. The first insertion hole K-1 is a cylindrical through hole. The second insertion hole K-2 is also a cylindrical hole. The diameter of the second insertion hole K-2 is smaller than the diameter of the first insertion hole K-1. The first spring cavity K-3 is a cylindrical cavity. The axis of the first spring cavity K-3 coincides with that of the second insertion hole K-2. The diameter of the first spring cavity K-3 is larger than the diameter of the second insertion hole K-2.

[0034] Preferably, the rotating assembly 201 includes a rotating ring 201a rotatably disposed in the annular cavity H-6, a rotating plate 201b rotatably disposed in the closed cavity H-4, and a slide block 201c disposed on the side wall of the rotating plate 201b. The rotating ring 201a, the rotating plate 201b, and the slide block 201c are integrally disposed. The closing assembly 202 is composed of multiple sealing blocks 202a. The sealing blocks 202a are hinged in the closed cavity H-4 on the side away from the movable cavity H-3. A slide block groove M-1 is provided on the sealing block 202a, and a second spring cavity M-2 is located on the side of the slide block groove M-1 that extends into the sealing block 202a.

[0035] It should be noted that the rotating ring 201a is a circular ring, and the rotating plate 201b is a circular plate with a central hole. The outer diameter of the rotating ring 201a and the outer diameter of the rotating plate 201b are the same. The slide block 201c is a cylinder, and the diameter of the slide block 201c is much smaller than the diameter of the rotating plate 201b. There are 6 slide blocks 201c, and the 6 slide blocks 201c are fixed at 60-degree intervals around the center of the rotating plate 201b. There are 6 sealing blocks 202a, and the 6 sealing blocks can form a complete circle. The slide block groove M-1 is a rectangular groove, and the width of the slide block groove M-1 is the same as the diameter of the slide block 201c. The second spring cavity M-2 is a rectangular cavity, and the width of the second spring cavity M-2 is wider than the slide block groove M-1.

[0036] In this embodiment, the operator can adjust the angle of the inserted blow-blocking device by adjusting component 102, and by rotating component 201 and closing component 202 cooperating with each other, the opening and closing state of the blow-blocking device used for pipeline cleaning can be changed when the blow-blocking device is inserted.

[0037] Example 2

[0038] Reference Figures 1-8This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, a plug post 102a-2 is slidably disposed in the second socket K-2, and a first spring 102a-3 is sleeved on the plug post 102a-2. The first spring 102a-3 is located in the first spring cavity K-3, and both ends of the plug post 102a-2 are rounded. The adjustment assembly 102 also includes a vertical post 102b slidably disposed in the vertical hole H-2. One end of the vertical post 102b has a first vertical surface 102b-1 and a first inclined surface 102b-2. The first vertical surface 102b-1 is parallel to the axis of the vertical post 102b, and one end of the first inclined surface 102b-2 is connected to one end of the first vertical surface 102b-1.

[0040] It should be noted that the insert 102a-2 is a cylinder, and the part of the insert 102a-2 that extends into the first insertion hole K-1 is rounded; the first spring 102a-3 applies a downward force to the insert 102a-2; the vertical column 102b is a cylinder, and the diameter of the vertical column 102b is the same as the diameter of the insert 102a-2; the angle at the connection between the first inclined surface 102b-2 and the first vertical surface 102b-1 is greater than 90 degrees and less than 150 degrees.

[0041] Furthermore, the rotating ring 201a has a second vertical surface 201a-1 and a second inclined surface 201a-2 at the end away from the rotating plate 201b. The second vertical surface 201a-1 is parallel to the axis of the rotating ring 201a, and one end of the second inclined surface 201a-2 is connected to one end of the second vertical surface 201a-1. A second locking hole H-7 is provided on the radial side wall of the rotating plate 201b, and the second locking hole H-7 is connected to the first locking hole H-5. The rotating assembly 201 also includes a pin 201d inserted into the first locking hole H-5 and the second locking hole H-7. The pin 201d has a large frictional force with the hole walls of the first locking hole H-5 and the second locking hole H-7.

[0042] It should be noted that the angle between the second inclined surface 201a-2 and the second vertical surface 201a-1 is less than 90 degrees and greater than 60 degrees, and the second vertical surface 201a-1 contacts the first inclined surface 102b-2; the second locking hole H-7 is a cylindrical hole, and the diameter of the second locking hole H-7 is the same as the diameter of the first locking hole H-5; the opening of the second locking hole H-7 is rounded; the pin 201d is cylindrical, and the pin 201d cooperates with the second locking hole H-7 and the first locking hole H-5. The end of the pin 201d extending out of the first locking hole H-5 is glued with a rubber block, which increases the contact area and makes it easier for the operator to pull it out.

[0043] Preferably, a second spring 202b is provided in the second spring cavity M-2, and the slide block 201c is slidably disposed in the slide block groove M-1. One end of the second spring 202b contacts the side wall of the slide block 201c. The sealing block 202a includes a first arc surface M-3, a second arc surface M-4, and a third arc surface M-5. The first arc surfaces M-3 of all sealing blocks 202a can form a complete circle, and the radii of the second arc surfaces M-4 and the third arc surfaces M-5 are the same. The second arc surfaces M-4 of all sealing blocks 202a contact the third arc surfaces M-5 of the adjacent sealing blocks 202a and fit together completely.

[0044] It should be noted that the first arc surface M-3 of each sealing block 202a can be combined to form a complete circle; the hinge point of the sealing block 202a is located at the intersection of the first arc surface M-3 and the third arc surface M-5; the second arc surface M-4 and the third arc surface M-5 have the same diameter, the second arc surface M-4 is an outwardly convex arc surface, and the third arc surface M-5 is an inwardly concave arc surface; the axes of the first arc surface M-3, the second arc surface M-4 and the third arc surface M-5 are parallel, and their axes are also parallel to the axis of the slide block 201c; the first arc surface M-3, the second arc surface M-4 and the third arc surface M-5 are triangularly arranged; the above arrangement allows the second arc surface M-4 on one sealing block 202a to fit against the third arc surface M-5 on the adjacent sealing block 202a when the sealing block 202a rotates around the hinge point hinged to the closed cavity H-4.

[0045] In this embodiment, when the operator needs to blow out the plug, the blow-out device needs to be inserted into the first socket K-1. The blow-out device will push the plug 102a-2 out of the first socket K-1. The other end of the pushed-out plug 102a-2 will push the vertical column 102b out of the second socket K-2, and make the vertical column 102b extend into the depth of the vertical hole H-2. At this time, the ball block 102a-1 loses the restriction of the vertical column 102b and can rotate freely.

[0046] It should be noted that when the vertical column 102b extends deep into the vertical hole H-2, the first inclined surface 102b-2 will press against the second inclined surface 201a-2. Since the rotating ring 201a cannot slide in the axial direction, the pressure of the first inclined surface 102b-2 on the second inclined surface 201a-2 will cause the first inclined surface 102b-2 to slide from the end of the second inclined surface 201a-2 near the end face of the rotating ring 201a to the end of the second inclined surface 201a-2 near the second vertical surface 201a-1, so that the rotating ring 201a as a whole is in the annular cavity H. -6 rotates counterclockwise; the rotating ring 201a causes the rotating plate 201b to rotate together, and also drives the slide block 201c to rotate; the rotating slide block 201c will slide from the end of the slide block groove M-1 near the first arc surface M-3 to the end near the second arc surface M-4, while compressing the second spring 202b, which will cause the sealing block 202a to rotate around the hinge, so that the sealing component 202 rotates from a complete circle to an annular shape; after this, the blow-blocking device can be inserted into the pipeline W from the opening of the sealing component 202 to blow-block.

[0047] It should also be noted that after the purging is completed, the operator must remove the purging device, keeping it perpendicular to the side wall of the pipeline W. After the purging device is removed, the insert 102a-2 will re-enter the first insertion hole K-1 under the elastic force of the first spring 102a-3, and the sealing component 202 will also return to the state of forming a complete circle with the sealing block 202a under the elastic force of the second spring 202b, thereby sealing the pipeline W. At the same time, when the second spring 202b is extended to its maximum, the rotating ring 201a will also rotate to the state when the purging device is not inserted, thereby squeezing the vertical column 102b into the second insertion hole K-2 and locking the rotation angle of the ball block 102a-1. Finally, the operator must insert the pin 201d into the first locking hole H-5 and extend it into the second locking hole H-7 to lock the rotating ring 201a, thereby locking the sealing component 202 and keeping it closed under special environments such as external vibration.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pigging device for pipeline cleaning, characterized by: The utility model relates to a kind of pipe sealing device, including, Interface mechanism (100), including fixed seat (101) fixed on the side wall of pipeline (W), and adjusting assembly (102) arranged in fixed seat (101); Closure mechanism (200), including rotating assembly (201) arranged in fixed seat (101) and closure assembly (202), the closure assembly (202) is arranged on the side wall of rotating assembly (201); The fixed seat (101) is opened with ball cavity (H-1), vertical hole (H-2) through radial ball cavity (H-1), movable cavity (H-3) and closure cavity (H-4) arranged in sequence through axial ball cavity (H-1), first lock hole (H-5) through radial closure cavity (H-4), and ring cavity (H-6) connecting vertical hole (H-2) and closure cavity (H-4); The adjusting assembly (102) includes ball (102a) rotationally arranged in ball cavity (H-1), and the ball (102a) includes ball block (102a-1), the ball block (102a-1) is opened with first insertion hole (K-1) through ball block (102a-1), second insertion hole (K-2) perpendicular to first insertion hole (K-1), and first spring cavity (K-3) in the middle section of second insertion hole (K-2); The second insertion hole (K-2) is slidably provided with insertion column (102a-2), the insertion column (102a-2) is provided with first spring (102a-3) on the sleeve, the first spring (102a-3) is located in first spring cavity (K-3), and the both ends of the insertion column (102a-2) are treated by rounding, and the adjusting assembly (102) further includes vertical column (102b) slidably arranged in vertical hole (H-2), one end of the vertical column (102b) is provided with first vertical surface (102b-1) and first inclined surface (102b-2), the first vertical surface (102b-1) is parallel to the axis of the vertical column (102b), and one end of the first inclined surface (102b-2) is connected with one end of the first vertical surface (102b-1); The rotating assembly (201) includes rotating ring (201a) rotationally arranged in ring cavity (H-6), rotating plate (201b) rotationally arranged in closure cavity (H-4), and slide (201c) arranged on the side wall of rotating plate (201b), and the rotating ring (201a), rotating plate (201b) and slide (201c) are integrally arranged; The rotating ring (201a) is opened with second vertical surface (201a-1) and second inclined surface (201a-2) away from one end of rotating plate (201b), the second vertical surface (201a-1) is parallel to the axis of the rotating ring (201a), and one end of the second inclined surface (201a-2) is connected with one end of the second vertical surface (201a-1). The closing assembly (202) is composed of a plurality of closing blocks (202a) which are hinged in the closing cavity (H-4) away from the active cavity (H-3), and a sliding block groove (M-1) is formed on the closing block (202a), and a second spring cavity (M-2) is formed on the side of the sliding block groove (M-1) into the closing block (202a).

2. A blow plug for pipeline cleaning according to claim 1, characterised in that: A second lock hole (H-7) is formed on the radial side wall of the rotating plate (201b), and the second lock hole (H-7) is in communication with the first lock hole (H-5).

3. A pigging device for pipeline cleaning according to claim 2, characterised in that: The rotating assembly (201) further comprises a plug pin (201d) which is inserted into the first lock hole (H-5) and the second lock hole (H-7), and the plug pin (201d) has a large friction force with the hole wall of the first lock hole (H-5) and the second lock hole (H-7).

4. A pigging device for pipeline cleaning according to claim 3, characterised in that A second spring (202b) is arranged in the second spring cavity (M-2), the sliding block (201c) is slidingly arranged in the sliding block groove (M-1), and one end of the second spring (202b) contacts the side wall of the sliding block (201c).

5. A pigging device for pipeline cleaning according to claim 4, characterised in that: The closing block (202a) comprises a first arc surface (M-3), a second arc surface (M-4) and a third arc surface (M-5), the first arc surfaces (M-3) of all the closing blocks (202a) can form a complete circle, and the second arc surface (M-4) and the third arc surface (M-5) have the same radius.

6. A pigging device for pipeline cleaning according to claim 5, characterised in that: The second arc surfaces (M-4) of all the closing blocks (202a) contact the third arc surfaces (M-5) of the adjacent closing blocks (202a) and are completely attached.

Citation Information

Patent Citations

  • Purging combined device

    CN117718289A

  • Pipeline descaling device

    CN216539980U