Pipeline leakage detection device

Abstract

The utility model discloses a pipeline leakage detection device, and belongs to the field of pipeline detection. According to the technical scheme, the pipeline leakage detection device comprises an annular plate used for installing a detection instrument, a plurality of idler wheel assemblies are arranged on the inner wall of the annular plate, each idler wheel assembly comprises a plurality of supporting assemblies arranged in the circumferential direction of the annular plate, and the ends, away from the annular plate, of the supporting assemblies are provided with hinge parts; a roller support is hinged to the hinge portion, a roller part is arranged on the roller support, and an elastic part is arranged between the roller support and the outer wall of the supporting assembly. The connecting seam or the protrusion can be prevented from stopping movement of the rolling wheel piece, damping and buffering in the rotating process of the rolling wheel support are facilitated through the arrangement of the elastic piece, the influence of swing of the rolling wheel piece penetrating through the seam or the protrusion on the annular plate is reduced, and the posture stability of the annular plate in the moving process is guaranteed; the precision of pipeline detection is improved; and the continuity of pipeline detection is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline detection, and in particular relates to a pipeline leakage detection device. Background Art

[0002] Common pipeline inspections can be divided into external inspection methods and internal inspection methods. Among them, the main product used in the internal inspection method is a pipeline inspection robot, which includes crawler-type, wheeled-type, pipeline endoscope, etc. In the prior art, the invention patent with application number 202111579853.1 discloses a pipeline leakage detection device, which includes a detection module in a ring shape, a power module symmetrically arranged along the circumference of the detection module, and a traction module fixedly arranged on the power module. The local pressure change in the pipe caused by the pipeline leakage itself is converted into an electrical signal, thereby locating the leakage point.

[0003] The shortcoming of the prior art is that the flexible wheel bracket in its power module is a rigid structure, which is easily affected by the concave structure or convex structure on the inner wall of the pipeline during its movement in the pipeline, resulting in obstruction of movement of the detection device and unstable movement posture, thereby affecting the accuracy of the detection results. Utility Model Content

[0004] The utility model provides a pipeline leakage detection device to solve at least one of the above technical problems.

[0005] The technical solution adopted by the utility model is:

[0006] A pipeline leakage detection device comprises an annular plate for mounting a detection instrument, wherein the inner wall of the annular plate is provided with a plurality of roller assemblies, wherein the roller assemblies comprise a plurality of support assemblies arranged circumferentially along the annular plate, wherein the support assemblies have a hinged portion at one end away from the annular plate, wherein the hinged portion is hingedly connected to a roller bracket, wherein a roller member is provided on the roller bracket, and an elastic member is provided between the roller bracket and the outer wall of the support assembly.

[0007] Preferably, the support assembly is a telescopic assembly that can be extended and retracted axially along the annular plate, and several groups of the telescopic assemblies are equidistantly arranged along the circumference of the annular plate. Two groups of the telescopic assemblies are symmetrically arranged along the axial direction of the annular plate, and the telescopic ends of the two groups of telescopic assemblies extend to one side away from the annular plate respectively.

[0008] Preferably, the elastic member includes a buffer cylinder, the buffer cylinder includes a fixed sleeve, a piston connecting rod is slidably connected inside the fixed sleeve, one end of the piston connecting rod away from the fixed sleeve is hinged to the roller bracket, and one end of the fixed sleeve away from the piston connecting rod is hinged to the telescopic end of the telescopic assembly.

[0009] Preferably, a circular mounting cavity is provided inside the annular plate, a mounting plate is provided inside the circular mounting cavity, a through hole is provided in the middle area of ​​the mounting plate, and an impeller is provided in the through hole.

[0010] Preferably, a battery is provided in the mounting plate, and the impeller rotates to convert mechanical energy into electrical energy and stores it in the battery.

[0011] Preferably, the impeller is externally connected to a drive motor, and the drive motor drives the impeller to rotate to provide forward power for the annular plate.

[0012] Preferably, a plurality of groups of channels are provided on the mounting plate, and control components for adjusting the size of channel openings are provided in the channels.

[0013] Preferably, the control assembly comprises a baffle rotatably connected in the channel, the baffle matches the inner diameter of the channel, and a servo motor for driving the baffle to rotate is provided in the mounting plate.

[0014] Preferably, the telescopic assembly comprises an electric telescopic rod.

[0015] Preferably, the roller member is a flexible rubber wheel.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0017] 1. In the present application, the roller bracket and the telescopic end of the telescopic assembly are hingedly connected by a hinge part, so that the roller member can be displaced to a certain extent along the diameter direction of the pipeline, so that the roller member can smoothly pass through the connecting seam or protrusion, avoiding the connecting seam or protrusion blocking the movement of the roller member, causing the annular plate to stop moving. The elastic member is arranged to facilitate shock absorption and buffering of the rotation process of the roller bracket, reduce the influence of the swing of the roller member when passing through the gap or protrusion on the annular plate, ensure the stability of the posture of the annular plate during movement, prevent the vibration of the annular plate from affecting the detection accuracy of the detection instrument arranged on the outer wall, increase the accuracy of pipeline detection and ensure the continuity of pipeline detection.

[0018] 2. As a preferred embodiment of the utility model, the distance between the roller member and the annular plate can be adjusted by setting the telescopic assembly. When the stability of the annular plate during movement needs to be improved, two groups of telescopic assemblies are symmetrically arranged along the axis of the annular plate. The setting of the two groups of telescopic assemblies is convenient for improving the stability of the support for the annular plate. By extending the telescopic ends of the two groups of telescopic assemblies to push the roller member to move to the side away from the annular plate, the stability of the moving posture of the annular plate can be further improved.

[0019] 3. As a preferred embodiment of the present invention, the cavity between the fixed sleeve and the piston connecting rod is filled with gas under a certain pressure. When the roller member passes through the connecting seam or the raised area, the roller bracket rotates to compress the gas in the fixed sleeve by squeezing the piston connecting rod to slide in the fixed sleeve, thereby achieving shock absorption and buffering of the rotation process of the roller bracket. In addition, elastic components such as springs can be arranged between the piston connecting rod and the fixed sleeve to increase the buffering effect of the elastic components.

[0020] 4. As a preferred embodiment of the present invention, the medium transported in the pipeline will drive the impeller to rotate during the process of passing through the through hole. The rotation of the impeller will provide a boosting force for the annular plate, driving the annular plate to move in the direction of the medium flow.

[0021] Furthermore, a battery is provided in the mounting plate, and a generator is externally connected to the impeller. The impeller rotates to convert mechanical energy into electrical energy and stores it in the battery. The battery can be connected to power-consuming equipment such as detection instruments through wires to provide power to the power-consuming equipment, thereby increasing the continuity and sustainability of the pipeline detection process.

[0022] 5. As a preferred embodiment of the utility model, the drive motor and the battery are electrically connected through a wire. When the medium in the pipeline stops flowing, the drive motor can provide power for the impeller to rotate, so that the impeller rotates to drive the annular plate to move, further ensuring the continuity and sustainability of the pipeline detection process.

[0023] 6. As a preferred embodiment of the present invention, by adjusting the size of the channel opening through the control component, the size of the resistance can be controlled, thereby adjusting the moving speed of the annular plate in the pipeline, that is, the larger the channel opening, the smaller the thrust exerted by the medium on the mounting plate, and the slower the moving speed of the annular plate, and vice versa, the faster the moving speed of the annular plate.

[0024] Specifically, the size of the channel opening is adjusted by controlling the rotation angle of the baffle through a servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional view of the side view of the utility model;

[0026] Figure 2 It is the front view of the utility model.

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] In the attached picture:

[0029] 1. Annular plate; 2. Mounting plate; 201. Through hole; 2011. Impeller; 202. Channel; 2021. Baffle; 203. Battery; 3. Electric telescopic rod; 4. Roller bracket; 5. Roller member; 6. Buffer cylinder. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0032] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0035] Reference Figure 1-2A pipeline leakage detection device includes an annular plate 1 for installing a detection instrument, a plurality of roller assemblies are arranged on the inner wall of the annular plate 1, and the roller assemblies include a plurality of support assemblies arranged circumferentially along the annular plate 1. The support assembly has a hinged portion at one end away from the annular plate 1, and a roller bracket 4 is hingedly connected to the hinged portion. A roller member 5 is arranged on the roller bracket 4, and an elastic member is arranged between the roller bracket 4 and the outer wall of the support assembly.

[0036] It can be understood by those skilled in the art that the inner cross-section of the long-distance transmission pipeline is circular. The technician puts the annular plate 1 of the present application into the pipeline from any port of the transmission pipeline, so that the roller member 5 is against the inner wall of the pipeline under the action of the elastic force of the elastic member to support the center of the annular plate 1 to be coaxial with the center of the inner diameter of the pipeline. A detection instrument is installed on the outer wall of the annular plate 1. The detection instrument is used to detect whether there is a leakage point on the inner wall of the pipeline. The detection instrument is a prior art and will not be described in detail here. The medium transported in the transmission pipeline is the annular plate 1 that applies a radial thrust along the pipeline so that the annular plate 1 moves in the transmission pipeline along the flow direction of the transmission medium. There will be a connection seam on the inner wall of the interface where two adjacent sections of the transmission pipeline are connected, or the sealing structure at the interface will be A convex structure is formed on the inner wall of the interface, and the roller bracket 4 is hinged to the telescopic end of the telescopic assembly through a hinged portion, so that the roller member 5 can be displaced to a certain extent along the diameter direction of the pipeline, so that the roller member 5 can smoothly pass through the connecting seam or the protrusion, thereby preventing the connecting seam or the protrusion from blocking the movement of the roller member 5 and causing the annular plate 1 to stop moving. The elastic member is arranged to facilitate shock absorption and buffering during the rotation process of the roller bracket 4, reduce the influence of the swing of the roller member 5 when passing through the gap or the protrusion on the annular plate 1, ensure the stability of the posture of the annular plate 1 during the movement, prevent the vibration of the annular plate 1 from affecting the detection accuracy of the detection instrument arranged on the outer wall, increase the accuracy of pipeline detection, and ensure the continuity of pipeline detection.

[0037] The roller member 5 is a flexible rubber wheel, which can be adaptively deformed when passing through the connection seam or protrusion, further reducing the swing of the roller bracket 4, the support assembly and the annular plate 1, and improving the stability of the moving posture of the annular plate 1.

[0038] As a preferred embodiment of the present application, refer to Figure 1 and Figure 2 The supporting assembly is a telescopic assembly that can be extended and retracted axially along the annular plate 1. The telescopic assembly is away from a plurality of groups of telescopic assemblies and is equidistantly arranged along the circumference of the annular plate 1. Two groups of telescopic assemblies are symmetrically arranged axially along the annular plate 1. The telescopic ends of the two groups of telescopic assemblies extend to one side away from the annular plate 1 respectively.

[0039] The distance between the roller member 5 and the annular plate 1 can be adjusted by setting the telescopic components. When the stability of the annular plate 1 during movement needs to be improved, two groups of telescopic components are symmetrically arranged along the axial direction of the annular plate 1. The setting of the two groups of telescopic components is convenient for improving the stability of the support for the annular plate 1. By extending the telescopic ends of the two groups of telescopic components to push the roller member 5 to move to the side away from the annular plate 1, the stability of the moving posture of the annular plate 1 can be further improved.

[0040] Specifically, the telescopic assembly includes an electric telescopic rod 3, and the telescopic end of the electric telescopic rod 3 is controlled to extend and retract by an electrical signal to adjust the distance between the roller member 5 and the annular plate 1. The electric telescopic rod 3 is a mature prior art, and those skilled in the art can select a suitable model according to actual conditions, and no further details will be given here.

[0041] As a specific embodiment of the elastic member, refer to Figure 1 The elastic member includes a buffer cylinder 6, which includes a fixed sleeve, in which a piston connecting rod is slidably connected, and one end of the piston connecting rod away from the fixed sleeve is hinged to the roller bracket 4, and one end of the fixed sleeve away from the piston connecting rod is hinged to the telescopic end of the telescopic assembly.

[0042] The cavity between the fixed sleeve and the piston connecting rod is filled with gas at a certain pressure. When the roller member 5 passes through the connecting seam or the raised area, the roller bracket 4 rotates and compresses the gas in the fixed sleeve by squeezing the piston connecting rod to slide in the fixed sleeve, thereby achieving shock absorption and buffering of the rotation process of the roller bracket 4. In addition, elastic components such as springs can be arranged between the piston connecting rod and the fixed sleeve to increase the buffering effect of the elastic components.

[0043] As a preferred embodiment of the present application, refer to Figure 1 and Figure 2 The annular plate 1 has a circular mounting cavity inside, a mounting plate 2 is arranged in the circular mounting cavity, a through hole 201 is arranged in the middle area of ​​the mounting plate 2, and an impeller 2011 is arranged in the through hole 201. The medium transported in the pipeline will drive the impeller 2011 to rotate when passing through the through hole 201, and the rotation of the impeller 2011 will provide a boost to the annular plate 1, driving the annular plate 1 to move in the direction of the medium flow.

[0044] Furthermore, a battery 203 is provided in the mounting plate 2, and the impeller 2011 is externally connected to a generator. The impeller 2011 rotates to convert mechanical energy into electrical energy and stores it in the battery 203. The battery 203 can be connected to power-consuming devices such as detection instruments through wires to provide power to the power-consuming devices, thereby increasing the continuity and sustainability of the pipeline detection process.

[0045] As another embodiment of the above embodiment, refer to Figure 1 and Figure 2The impeller 2011 is externally connected to a driving motor, and the driving motor drives the impeller 2011 to rotate to provide forward power for the annular plate 1.

[0046] The driving motor is electrically connected to the battery 203 through a wire. When the medium in the pipeline stops flowing, the driving motor can provide power for the impeller 2011 to rotate, so that the impeller 2011 rotates to push the annular plate 1 to move, further ensuring the continuity and sustainability of the pipeline detection process.

[0047] As a preferred embodiment of the above implementation, refer to Figure 1-2 A plurality of channels 202 are provided on the mounting plate 2 , and a control component for adjusting the opening size of the channels 202 is provided in the channels 202 .

[0048] By adjusting the opening size of the channel 202 through the control component, the resistance size can be controlled, and then the moving speed of the annular plate 1 in the pipeline can be adjusted. That is, the larger the opening of the channel 202, the smaller the thrust exerted by the medium on the mounting plate 2, and the slower the moving speed of the annular plate 1. Conversely, the moving speed of the annular plate 1 is faster.

[0049] Specifically, the control assembly includes a baffle 2021 rotatably connected to the channel 202, the baffle 2021 matches the inner diameter of the channel 202, and a servo motor for driving the baffle 2021 to rotate is provided in the mounting plate 2. The servo motor controls the rotation angle of the baffle 2021 to adjust the opening size of the channel 202.

[0050] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0051] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0052] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A pipeline leakage detection device, comprising an annular plate (1) for mounting a detection instrument, wherein the inner wall of the annular plate (1) is provided with a plurality of roller assemblies, characterized in that: The roller assembly comprises a plurality of groups of support assemblies arranged along the circumference of the annular plate (1); one end of the support assembly away from the annular plate (1) has a hinged portion, the hinged portion is hinged with a roller bracket (4), a roller member (5) is provided on the roller bracket (4), and an elastic member is provided between the roller bracket (4) and the outer wall of the support assembly.

2. A pipeline leakage detection device according to claim 1, characterized in that: The support assembly is a telescopic assembly that can be telescoped along the axial direction of the annular plate (1); a plurality of groups of the telescopic assemblies are arranged equidistantly along the circumference of the annular plate (1); two groups of the telescopic assemblies are symmetrically arranged along the axial direction of the annular plate (1); the telescopic ends of the two groups of the telescopic assemblies respectively extend to a side away from the annular plate (1).

3. A pipeline leakage detection device according to claim 1, characterized in that: The elastic member comprises a buffer cylinder (6), the buffer cylinder (6) comprises a fixed sleeve, a piston connecting rod is slidably connected inside the fixed sleeve, an end of the piston connecting rod away from the fixed sleeve is hinged to the roller bracket (4), and an end of the fixed sleeve away from the piston connecting rod is hinged to the telescopic end of the telescopic assembly.

4. A pipeline leakage detection device according to claim 1, characterized in that: The annular plate (1) has a circular mounting cavity inside, a mounting plate (2) is arranged inside the circular mounting cavity, a through hole (201) is arranged in the middle area of ​​the mounting plate (2), and an impeller (2011) is arranged in the through hole (201).

5. A pipeline leakage detection device according to claim 4, characterized in that: A storage battery (203) is arranged inside the mounting plate (2), and the impeller (2011) rotates to convert mechanical energy into electrical energy and stores the electrical energy in the storage battery (203).

6. A pipeline leakage detection device according to claim 5, characterized in that: The impeller (2011) is externally connected to a drive motor, and the drive motor drives the impeller (2011) to rotate to provide forward momentum for the annular plate (1).

7. A pipeline leakage detection device according to claim 4, characterized in that: A plurality of groups of channels (202) are provided on the installation plate (2), and a control component for adjusting the opening size of the channels (202) is provided in the channels (202).

8. A pipeline leakage detection device according to claim 7, characterized in that: The control component comprises a baffle (2021) rotatably connected in the channel (202), the baffle (2021) matching the inner diameter of the channel (202), and a servo motor for driving the baffle (2021) to rotate is provided in the mounting plate (2).

9. A pipeline leakage detection device according to claim 3, characterized in that: The telescopic assembly comprises an electric telescopic rod (3).

10. A pipeline leakage detection device according to claim 1, characterized in that: The roller member (5) is a flexible rubber wheel.

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