A device for detecting leakage points of inner coating of petroleum pipe

Abstract

The utility model discloses a device for detecting leakage points of inner coating of petroleum pipes, which relates to the technical field of petroleum pipe detection, and comprises a shell, the bottom end of which is fixedly connected with a detection head, the outer wall of which is slidably connected with a cleaning block, and the inner wall of which is provided with a supporting mechanism extending to the outside of the shell; the supporting mechanism comprises a bidirectional threaded rod, the outer wall of which is threadedly connected with two groups of sliders, the side walls of the two groups of sliders are respectively hinged with multiple groups of push rods, the two groups of push rods on the same side are cross-arranged, and the two groups of push rods on the same side are rotatably connected. The utility model rotates the bidirectional threaded rod so that the bidirectional threaded rod pushes the two groups of sliders to approach each other, so that the crawler fits on the inner wall of the pipe, so that the detection process can adapt to pipes of different inner diameters, so that when the petroleum pipe is detected, manual hand-holding is not required.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum pipe detection, in particular to a device for detecting leakage points of inner coatings of petroleum pipes. Background Art

[0002] Pipeline leakage detection technology refers to the detection of the surrounding environment or the inside of the pipeline. Through data analysis and processing, the internal coating of the oil pipe is tested to determine whether there are discontinuities such as cracks and pinholes in the coating film, so as to avoid the reduction of the service life of the pipe due to coating defects. Therefore, the research and application of pipeline leakage detection technology in the oil industry is particularly important.

[0003] The existing detection device needs to be operated by hand during the detection process, and cannot be adjusted according to the inner diameter of different pipes. As a result, the detection personnel need to hold the detection device with their hands all the time during the detection process, which increases the work intensity during the detection. Therefore, a device for detecting leakage points of inner coatings of petroleum pipes is proposed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a device for detecting leakage points of inner coating of petroleum pipes to solve the technical problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting leakage points of inner coating of petroleum pipes, comprising a shell, a detection head is fixedly connected to the bottom end of the shell, a cleaning block is slidably connected to the outer wall of the detection head, and a support mechanism extending to the outside of the shell is provided on the inner wall of the shell;

[0006] The supporting mechanism includes a bidirectional threaded rod, the outer wall of the bidirectional threaded rod is threadedly connected with two groups of sliders, the side walls of the two groups of sliders are respectively hinged with multiple groups of push rods, the two groups of push rods on the same side are cross-arranged, the two groups of push rods on the same side are rotatably connected, the ends of the two groups of push rods on the same side are respectively rotatably connected with a group of connecting blocks, the outer walls of the two groups of connecting blocks are slidably connected with a group of side support plates, and the side walls of the side support plates are rotatably connected with multiple groups of support wheels.

[0007] As a preferred technical solution of a device for detecting leakage points of inner coatings of petroleum pipes of the utility model, the top end of the bidirectional threaded rod extends to the outside of the housing, the top end of the bidirectional threaded rod is fixedly connected to a handle, and the outer wall of the handle is covered with a rubber sleeve.

[0008] As a preferred technical solution of a device for detecting leakage points of inner coatings of petroleum pipes of the utility model, the inner wall of the outer shell is provided with a driving mechanism extending to the outside of the outer shell, and the driving mechanism includes a motor, which is fixedly connected to the bottom end of the inner wall of the outer shell, and the output end of the motor is fixedly connected to a driving bevel gear.

[0009] As an optimal technical solution for a device for detecting leakage points of inner coatings of petroleum pipes of the utility model, the side wall of the shell is rotatably connected to a plurality of sets of sleeves, and one end of each set of sleeves located inside the shell is fixedly connected to a set of transmission bevel gears, and the transmission bevel gears are meshed with the driving bevel gears.

[0010] As a preferred technical solution for a device for detecting leakage points of inner coatings of petroleum pipes of the utility model, the inner wall of each group of the casings is slidably connected to a group of connecting rods extending to the inside of the side support plate, one end of the connecting rods located inside the side support plate is fixedly connected to a first bevel gear, and the bottom group of support wheels is fixedly connected to a second bevel gear at the connection with the side support plate, and the first bevel gear is meshed with the second bevel gear.

[0011] As a preferred technical solution of a device for detecting leakage points of inner coatings of petroleum pipes of the utility model, outer walls of multiple groups of support wheels on the same group of side support plates are sleeved with two groups of crawlers.

[0012] As a preferred technical solution of a device for detecting leakage points of inner coatings of petroleum pipes of the utility model, the cross section of the connecting rod at the position in contact with the casing is rectangular, and the connecting rod is connected to the side support plate at the position in contact with the side support plate through a bearing.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] 1. The utility model rotates the bidirectional threaded rod so that the bidirectional threaded rod pushes the two sets of sliders closer to each other, so that the crawler fits the inner wall of the pipe, so that the detection process can adapt to pipes with different inner diameters, so that when testing the oil pipe, manual holding is not required;

[0015] 2. The utility model drives the crawler to rotate through a motor, so that the detection device can automatically move forward inside the pipe, and slide inside the casing through a connecting rod, so that after the two-way threaded rod is rotated to make the crawler fit on the inner wall of the pipe, the power of the motor can always be transmitted to the crawler, so that manual pushing is not required during the detection process, reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure inside the shell of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the housing of the utility model when viewed from above;

[0019] Figure 4It is a schematic diagram of the position relationship between the top rod and the side support plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the side support plate of the utility model.

[0021] In the figure: 1. housing; 2. detection head; 3. slider; 4. support mechanism; 5. driving mechanism;

[0022] 401, bidirectional threaded rod; 402, slider; 403, top rod; 404, side support plate; 405, connecting block;

[0023] 501, motor; 502, driving bevel gear; 503, sleeve; 504, transmission bevel gear; 505, connecting rod; 506, supporting wheel; 507, crawler track; 508, first bevel gear; 509, bevel gear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0025] The following describes an embodiment of the utility model based on its overall structure.

[0026] A device for detecting leakage points of inner coating of petroleum pipes, such as Figures 1 to 5 As shown, it comprises a housing 1, a detection head 2 is fixedly connected to the bottom end of the housing 1, a cleaning block 3 is slidably connected to the outer wall of the detection head 2, and a support mechanism 4 extending to the outside of the housing 1 is provided on the inner wall of the housing 1;

[0027] The supporting mechanism 4 includes a bidirectional threaded rod 401, the outer wall of which is threadedly connected with two groups of sliders 402, the side walls of the two groups of sliders 402 are respectively hinged with multiple groups of push rods 403, the two groups of push rods 403 on the same side are cross-arranged, the two groups of push rods 403 on the same side are rotatably connected, the ends of the two groups of push rods 403 on the same side are respectively rotatably connected with a group of connecting blocks 405, the outer walls of the two groups of connecting blocks 405 are slidably connected with a group of side support plates 404, the side walls of the side support plates 404 are rotatably connected with multiple groups of support wheels 506, the top end of the bidirectional threaded rod 401 extends to the outside of the outer shell 1, the top end of the bidirectional threaded rod 401 is fixedly connected with a turning handle, and the outer wall of the turning handle is provided with a rubber sleeve.

[0028] By placing one end of the entire detection device into the pipe and then rotating the bidirectional threaded rod 401, the bidirectional threaded rod 401 drives the two groups of sliders 402 to approach each other, so that the two groups of sliders 402 respectively drive the upper and lower push rods 403 to rotate. During the rotation of the push rod 403, the upper and lower connecting blocks 405 are driven to approach each other, so that the side support plate 404 is pushed, so that the distances between the multiple groups of side support plates 404 are moved away from each other. The side support plates 404 move away from each other, driving the support wheels 506 to move away from each other, so that the track 507 fits the inner wall of the pipe.

[0029] Please refer to Figures 2 to 5 The inner wall of the housing 1 is provided with a driving mechanism 5 extending to the outside of the housing 1, and the driving mechanism 5 includes a motor 501, the motor 501 is fixedly connected to the bottom end of the inner wall of the housing 1, and the output end of the motor 501 is fixedly connected to a driving bevel gear 502. The side wall of the housing 1 is rotatably connected to multiple sets of sleeves 503, and one end of each set of sleeves 503 located inside the housing 1 is respectively fixedly connected to a set of transmission bevel gears 504, and the transmission bevel gears 504 are meshed with the driving bevel gears 502. The inner wall of each set of sleeves 503 is respectively slidably connected to a set of extending to the side support plate 404 The internal connecting rod 505, one end of the connecting rod 505 located inside the side support plate 404 is fixedly connected to the first bevel gear 508, the bottom group of support wheels 506 is fixedly connected to the second bevel gear 509 at the connection with the side support plate 404, the first bevel gear 508 is meshed with the second bevel gear 509, the outer walls of the multiple groups of support wheels 506 on the same group of side support plates 404 are sleeved with two groups of tracks 507, the cross-section of the connecting rod 505 at the contact position with the sleeve 503 is rectangular, and the connecting rod 505 is connected to the side support plate 404 at the contact position through a bearing.

[0030] The motor 501 drives the driving bevel gear 502 to rotate, the driving bevel gear 502 drives the transmission bevel gear 504 to rotate, the transmission bevel gear 504 drives the sleeve 503 to rotate, the sleeve 503 drives the connecting rod 505 to rotate, the connecting rod 505 drives the first bevel gear 508 to rotate, the first bevel gear 508 drives the second bevel gear 509 to rotate, the second bevel gear 509 drives a group of supporting wheels 506 below to rotate, thereby driving the track 507 to rotate, so that the track 507 pushes the entire detection device to move forward inside the pipe. During the advancement, the detection head 2 detects the inside of the pipe, and after the detection is completed, the cleaning block 3 is pushed to slide on the outer wall of the detection head 2, so that the dirt adhered to the outer wall of the detection head 2 is scraped off.

[0031] When in use, by rotating the bidirectional threaded rod 401, the bidirectional threaded rod 401 pushes the two sets of sliders 402 closer to each other, so that the track 507 fits the inner wall of the pipe, so that the detection process can adapt to pipes with different inner diameters, so that when testing oil pipes, manual holding is not required. The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology.

[0032] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A device for detecting leakage points of inner coating of petroleum pipes, comprising a housing (1), characterized in that: The bottom end of the housing (1) is fixedly connected to a detection head (2), the outer wall of the detection head (2) is slidably connected to a cleaning block (3), and the inner wall of the housing (1) is provided with a support mechanism (4) extending to the outside of the housing (1); The support mechanism (4) comprises a bidirectional threaded rod (401), the outer wall of the bidirectional threaded rod (401) being threadedly connected to two groups of sliders (402), the side walls of the two groups of sliders (402) being hinged to multiple groups of push rods (403), the two groups of push rods (403) on the same side being cross-arranged, the two groups of push rods (403) on the same side being rotatably connected to each other, the ends of the two groups of push rods (403) on the same side being rotatably connected to a group of connecting blocks (405), the outer walls of the two groups of connecting blocks (405) being slidably connected to a group of side support plates (404), and the side walls of the side support plates (404) being rotatably connected to multiple groups of support wheels (506).

2. The device for detecting leakage points of inner coating of petroleum pipe according to claim 1, characterized in that: The top end of the bidirectional threaded rod (401) extends to the outside of the housing (1), and the top end of the bidirectional threaded rod (401) is fixedly connected to a turning handle, and the outer wall of the turning handle is provided with a rubber sleeve.

3. The device for detecting leakage points of inner coating of petroleum pipe according to claim 1, characterized in that: The inner wall of the housing (1) is provided with a driving mechanism (5) extending to the outside of the housing (1), the driving mechanism (5) comprising a motor (501), the motor (501) being fixedly connected to the bottom end of the inner wall of the housing (1), and the output end of the motor (501) being fixedly connected to a driving bevel gear (502).

4. The device for detecting leakage points of inner coating of petroleum pipe according to claim 3, characterized in that: The side wall of the housing (1) is rotatably connected to a plurality of sets of sleeves (503), and one end of each set of sleeves (503) located inside the housing (1) is fixedly connected to a set of transmission bevel gears (504), and the transmission bevel gears (504) are meshed with the driving bevel gears (502).

5. The device for detecting leakage points of inner coating of petroleum pipe according to claim 4, characterized in that: The inner wall of each group of the sleeves (503) is slidably connected to a group of connecting rods (505) extending into the inside of the side support plate (404); one end of the connecting rods (505) located inside the side support plate (404) is fixedly connected to a first bevel gear (508); the bottom group of the support wheels (506) is fixedly connected to a second bevel gear (509) at the connection with the side support plate (404); the first bevel gear (508) is meshed with the second bevel gear (509).

6. The device for detecting leakage points of inner coating of petroleum pipe according to claim 1, characterized in that: The outer walls of the multiple groups of support wheels (506) on the same group of side support plates (404) are sleeved with two groups of crawlers (507).

7. The device for detecting leakage points of inner coating of petroleum pipe according to claim 5, characterized in that: The cross section of the connecting rod (505) at the position where it contacts the sleeve (503) is rectangular, and the position where the connecting rod (505) contacts the side support plate (404) is connected via a bearing.

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