Pipeline detection ultrasonic guided wave probe fixing device

Abstract

The invention provides a pipeline detection ultrasonic guided wave probe fixing device, and relates to the technical field of pipeline ultrasonic detection, and the pipeline detection ultrasonic guided wave probe fixing device comprises a positioning unit movably sleeving a detected pipeline and a plurality of detection units arranged in the positioning unit; wherein a guide rail surrounding a pipeline is arranged in the positioning unit, one end of the detection unit is movably connected to the guide rail, the other end of the detection unit is provided with an ultrasonic guided wave probe, and the ultrasonic guided wave probe can make contact with the outer wall of the pipeline. According to the technical scheme, according to the pipeline detection ultrasonic guided wave probe fixing device provided by the invention, the detection unit movably arranged on the guide rail can monitor any position of the pipeline through the positioning unit movably arranged outside the detected pipeline in the sleeving manner and the guide rail surrounding the pipeline in the positioning unit, the ultrasonic guided wave probe does not need to be repeatedly disassembled, and the detection efficiency is improved. And the ultrasonic detection efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pipeline ultrasonic detection, and in particular to a pipeline detection ultrasonic guided wave probe fixing device. Background Art

[0002] With the continuous growth of electricity demand, the power industry continues to improve the thermal efficiency and power generation of thermal power plants. The continuous increase in steam temperature and pressure of generator sets will inevitably aggravate metal corrosion and oxidation, and ultrasonic guided wave probes are needed to detect the entire pipeline. When using existing pipeline ultrasonic detection equipment, the ultrasonic guided wave probe needs to be installed on the outside of the pipeline with bolts. This practice is easy to cause damage to the pipeline, and the installation and displacement operations are not convenient.

[0003] Among them, patent document CN 218153667 U discloses a gas pipeline erosion detection device, which can conveniently fix the ultrasonic guided wave probe to a preset position through the detachable connection between the fixing assembly and the probe fixing piece. However, when testing different positions of the pipeline, it still needs to be repeatedly disassembled and shifted, which is relatively complicated. Summary of the invention

[0004] A technical problem to be solved by the present disclosure is: how to efficiently complete ultrasonic testing of pipelines.

[0005] In order to solve the above technical problems, an embodiment of the present disclosure provides a pipeline detection ultrasonic guided wave probe fixing device, including a positioning unit for movably sleeved on the outside of the pipeline to be detected and a plurality of detection units arranged inside the positioning unit; wherein, a guide rail surrounding the pipeline is provided in the positioning unit, one end of the detection unit is movably connected to the guide rail, and the other end is provided with an ultrasonic guided wave probe, and the ultrasonic guided wave probe can contact the outer wall of the pipeline.

[0006] In some embodiments, the detection unit includes a pushing assembly and a clamping assembly; wherein, one end of the pushing assembly is movably connected to the guide rail, the pushing assembly includes a pushing spring, and the pushing assembly is connected to the clamping assembly through the pushing spring; the clamping assembly is used to clamp the ultrasonic guided wave probe.

[0007] In some embodiments, the ultrasonic waveguide probe is connected to a probe fixture, the clamping assembly includes a clamping sleeve for accommodating the probe fixture, an embedding piece capable of penetrating the shell is movably provided on the shell of the clamping sleeve, and a corresponding embedding groove is provided on the probe fixture.

[0008] In some embodiments, the first end of the embedding piece used to embed in the embedding groove is provided with an inclined chamfer toward the probe fixing piece, so that the embedding piece can move relative to the shell of the clamping sleeve under the squeezing action of the probe fixing piece, and the second end of the embedding piece is connected to the first return spring, and the other end of the first return spring is connected to the clamping sleeve.

[0009] In some embodiments, the pushing assembly includes a pushing sleeve for accommodating a pushing spring, one end of the pushing spring is connected to the inner wall of the pushing sleeve, and the other end is connected to the clamping assembly through a baffle. The pushing assembly also includes a locking block for stopping the baffle, and the locking block can move through the shell of the pushing sleeve to switch the locking state of the push spring.

[0010] In some embodiments, the detection unit includes a swing assembly, which includes a synchronous piece that passes through an embedded piece to connect the inside and outside of the clamping sleeve, and a first swing arm and a second swing arm that are fixedly connected. The connection between the first swing arm and the second swing arm is hingedly arranged on the outside of the housing of the clamping sleeve, the free end of the first swing arm is connected to a locking block, the extension and contraction direction of the push spring is the first direction, and the embedded piece moves through the clamping sleeve along the second direction; in an initial state, the locking block stops the baffle; the second swing arm is provided with a first slide groove arranged along the second direction, the first end of the synchronous piece located outside the clamping sleeve is movably arranged in the first slide groove, and the second end of the synchronous piece located inside the clamping sleeve is arranged at the end of the embedded groove of the embedded piece, the clamping assembly includes an extrusion spring arranged along the first direction, one end of the extrusion spring is connected to the inner wall of the clamping sleeve, and the other end can be connected to the probe fixing piece, and the probe fixing piece squeezes the second end of the synchronous piece under the action of the extrusion spring to make the synchronous piece move along the first direction, and drives the first swing arm to rotate around the connection so that the locking block disengages from the baffle to release the locking state of the push spring.

[0011] In some embodiments, a slide plate capable of moving along a first direction is disposed in the clamping sleeve, a compression spring is connected to a first side surface of the slide plate, and a mounting groove capable of engaging with a probe fixing member is disposed on a second side surface opposite to the slide plate.

[0012] In some embodiments, a second guide rod along the first direction and a second return spring sleeved on the second guide rod are disposed in the embedded part, one end of the second return spring is connected to the synchronizer, and the other end is connected to the inner wall of the embedded part.

[0013] In some embodiments, a first fixed seat is provided on the outer surface of the clamping sleeve, and the clamping assembly also includes a reset lever rotatably hinged to the first fixed seat, a second sliding groove is provided on the reset lever, a sliding rod located in the second sliding groove is provided at the second end of the embedded part, and a pressure plate is provided at one end of the reset lever, and the pressure plate is pressed to drive the embedded part to move through the sliding rod.

[0014] In some embodiments, a reset torsion spring is provided at the hinge between the reset lever and the first fixing seat.

[0015] Through the above technical scheme, the pipeline detection ultrasonic guided wave probe fixing device provided by the present invention can monitor any position of the pipeline by moving the positioning unit installed outside the pipeline to be detected and the guide rail inside the pipeline that surrounds the pipeline, so that the detection unit movably arranged on the guide rail can monitor any position of the pipeline, without the need to repeatedly disassemble the ultrasonic guided wave probe, thereby improving the efficiency of ultrasonic detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a schematic diagram of the structure of the fixing device disclosed in the embodiment of the present disclosure;

[0018] Figure 2 is a cross-sectional schematic diagram of a fixing device disclosed in an embodiment of the present disclosure;

[0019] Figure 3 is a schematic diagram of the structure of the detection unit disclosed in the embodiment of the present disclosure;

[0020] Figure 4 It is a schematic structural diagram of a disassembled protective cover of a detection unit disclosed in an embodiment of the present disclosure;

[0021] Figure 5 The embodiment disclosed in this disclosure Figure 4 A magnified view of part A in FIG.

[0022] Figure 6 The embodiment disclosed in this disclosure Figure 4 A magnified view of part B in FIG.

[0023] Figure 7 is a cross-sectional schematic diagram of a detection unit disclosed in an embodiment of the present disclosure;

[0024] Figure 8 The embodiment disclosed in this disclosure Figure 7 The enlarged view of the C part in FIG.

[0025] Fig. 9 is a schematic diagram of the structure of the swing assembly disclosed in the embodiment of the present disclosure;

[0026] Fig.10 is a cross-sectional schematic diagram of an embedded component and a part of a synchronizer disclosed in an embodiment of the present disclosure;

[0027] Fig.11 It is a cross-sectional schematic diagram of the pushing component disclosed in the embodiment of the present disclosure.

[0028] Description of reference numerals:

[0029] 1. Positioning unit; 101. Guide rail; 102. Slider; 103. Groove; 104. Positioning sleeve; 105. Closing plate; 106. Guide sleeve; 2. Detection unit; 3. Push assembly; 301. Push spring; 302. Push sleeve; 303. Baffle; 304. Locking block; 305. Locking port; 306. Push rod; 4. Clamping assembly; 401. Clamping sleeve; 402. Embedding piece; 4021. Second guide rod; 4022 Second reset spring; 4023. Sliding rod; 4024. Sliding rod mounting seat; 4025. Inclined chamfer; 403. First reset spring; 404. Extrusion spring; 405. Sliding plate; 406. First fixing seat; 407. Reset Lever; 4071, second slide groove; 4072, pressure plate; 4073, lever limit seat; 408, mounting groove; 409, reset torsion spring; 410, protective cover; 411, second fixed seat; 412, pull plate; 413, first guide rod; 5, swing assembly; 501, first swing arm; 502, second swing arm; 503, synchronization piece; 5031, flat plate; 5032, supporting protrusion; 5033, sliding protrusion; 5034, extrusion block; 5035, synchronization rod; 5036, synchronization plate; 504, first slide groove; 5041, notch; 505, hinged seat; 6, ultrasonic guided wave probe; 601, probe fixing piece; 602, embedded groove; 7, pipeline. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0031] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0032] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure 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 of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0034] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0035] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0037] like Figure 1 and Figure 2 As shown, the present disclosure provides a pipeline detection ultrasonic guided wave probe fixing device, including a positioning unit 1 for movably sleeved on the outside of the pipeline 7 to be detected and a plurality of detection units 2 arranged inside the positioning unit 1; wherein, a guide rail 101 surrounding the pipeline is provided inside the positioning unit 1, one end of the detection unit 2 is movably connected to the guide rail 101, and the other end is provided with an ultrasonic guided wave probe 6, and the ultrasonic guided wave probe 6 can contact the outer wall of the pipeline 7.

[0038] Specifically, when the device is used to detect the pipeline 7, the positioning unit 1 is sleeved on the outside of the pipeline 7. The staff can use the positioning unit 1 to move the device along the axial direction of the pipeline 7 to measure various positions of the pipeline 7 in the axial direction. At the same time, the detection unit 2 uses the guide rail 101 surrounding the pipeline 7 in the positioning unit 1 to move along the circumferential direction of the pipeline 7, so that the ultrasonic guided wave probe 6 can contact any position of the outer surface of the pipeline 7, which is convenient for measuring it. Figure 2 As shown, four detection units 2 are distributed on the guide rail 101, and are distributed at different positions of the guide rail 101. On the one hand, it provides a stable supporting force for the positioning unit 1 to be mounted on the outside of the pipeline 7, and on the other hand, it also improves the detection efficiency. In other embodiments, other numbers of multiple detection units 2 can also be set in the positioning unit 1.

[0039] like Figure 1 As shown, in some examples, the positioning unit 1 includes a positioning sleeve 104, sealing plates 105 located on both sides of the positioning sleeve 104, and a guide sleeve 106 arranged on the sealing plate 105. The guide rail 101 is arranged on the inner side of the positioning sleeve 104 facing the pipeline 7. The sealing plates 105 arranged on both sides of the positioning sleeve 104 located in the axial direction of the pipeline 7 are used to reduce the impact of the outside world on the detection unit 2 and improve the detection accuracy. The setting of the guide sleeve 106 facilitates the axial movement of the positioning unit 1 along the pipeline 7 to prevent the positioning sleeve 104 from having a large deflection during the movement, which affects the detection effect. In order to facilitate the guide rail 101 to surround the pipeline 7 to be tested, the cross-sectional shape of the positioning sleeve 104 is a circular ring. In order to meet the convenience of use under different working conditions, in other embodiments, the cross-sectional shape of the positioning sleeve 104 can also be a triangle, rectangle or other closed figures.

[0040] like Figure 2 As shown, in some embodiments, a groove 103 is provided on the inner side of the positioning sleeve 104 facing the pipe 7, a guide rail 101 and a slider 102 that can move along the guide rail are provided in the groove 103, one end of the detection unit 2 is connected to the slider 102, and the guide rail 101 is arranged in the groove 103 to reduce the probability of derailment and improve the stability of the detection unit 2 when moving along the guide rail 101.

[0041] like Figure 2 , Figure 3 , Figure 4 , Figure 7 and Fig.11 As shown, the detection unit 2 includes a pushing component 3 and a clamping component 4; wherein, one end of the pushing component 3 is movably connected to the guide rail 101, the pushing component 3 includes a pushing spring 301, and the pushing component 3 is connected to the clamping component 4 through the pushing spring 301; the clamping component 4 is used to clamp the ultrasonic guided wave probe 6.

[0042] Specifically, the pushing assembly 3 is connected to the end of the guide rail 101 so that the detection unit 2 can move along the circumference of the pipe 7. The pushing spring 301 used to connect the pushing assembly 3 and the clamping assembly 4 provides a pushing force for the clamping assembly 4, so that the ultrasonic guided wave probe 6 located at the end of the clamping assembly 4 can contact the outer wall surface of the pipe 7. At the same time, when the diameter or cross-sectional shape of the pipe 7 changes, the pushing spring 301 can be extended and retracted so that the ultrasonic guided wave probe 6 can continue to contact the outer wall surface of the pipe 7, so that the device can detect pipes 7 with different diameters and different cross-sectional shapes, thereby improving the applicability of the device.

[0043] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, in some embodiments, the ultrasonic guided wave probe 6 is connected to a probe fixture 601, the clamping assembly 4 includes a clamping sleeve 401 for accommodating the probe fixture 601, an embedding piece 402 capable of penetrating the shell is movably provided on the shell of the clamping sleeve 401, and a corresponding embedding groove 602 is provided on the probe fixture 601.

[0044] Specifically, in order to facilitate the maintenance and replacement of the ultrasonic waveguide probe 6, a detachable connection is adopted between the clamping assembly 4 and the ultrasonic waveguide probe 6. The ultrasonic waveguide probe 6 is provided with a probe fixing part 601 for connecting the clamping assembly 4, and the clamping sleeve 401 of the clamping assembly 4 is used to accommodate and fix the probe fixing part 601. The embedding part 402 can pass through the shell of the clamping sleeve 401 and move to the inside of the clamping sleeve 401 and cooperate with the embedding groove 602 on the probe fixing part 601 to fix the ultrasonic waveguide probe 6, or pass through the shell and move to the outside of the clamping sleeve 401 to release the embedding relationship between it and the embedding groove 602, so that the ultrasonic waveguide probe 6 can be separated from the clamping assembly 4, which is convenient for maintenance or replacement. In other embodiments, other forms of detachable connection such as threaded connection, snap connection or hinge connection can also be adopted between the ultrasonic waveguide probe 6 and the clamping assembly 4 to facilitate the maintenance or replacement of the ultrasonic waveguide probe 6.

[0045] like Figure 4 As shown, embedding pieces 402 and corresponding embedding grooves 602 are provided on the four sides of the detection unit 2, which can enhance the stability of the connection between the clamping assembly 4 and the ultrasonic waveguide probe 6. In some embodiments, the embedding pieces 402 and corresponding embedding grooves 602 may be provided only on two opposite sides, so that the installation and removal of the ultrasonic waveguide probe 6 are more convenient while maintaining a certain stability.

[0046] like Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, in some embodiments, the first end of the embedding piece 402 used to embed in the embedding groove 602 is provided with an inclined chamfer 4025 toward the probe fixing piece 601, so that the embedding piece 402 can move relative to the shell of the clamping sleeve 401 under the squeezing action of the probe fixing piece 601, and the second end of the embedding piece 402 is connected to the first return spring 403, and the other end of the first return spring 403 is connected to the clamping sleeve 401.

[0047] Specifically, when the ultrasonic waveguide probe 6 is not installed in the clamping assembly 4, the first end of the embedded component 402 with the inclined chamfer 4025 is located inside the clamping sleeve 401 under the action of the first return spring 403. Figure 8 As shown, when installing the ultrasonic guided wave probe 6, the inclined chamfer 4025 allows the embedding piece 402 to move toward the outside of the clamping sleeve 401 under the squeezing action of the probe fixing piece 601, and at the same time squeezes the first reset spring 403 connected to the second end of the embedding piece 402. As the probe fixing piece 601 continues to advance into the clamping sleeve 401, the embedding groove 602 moves to a position corresponding to the embedding piece 402. At this time, under the elastic force of the first reset spring 403, the embedding piece 402 is snapped into the embedding groove 602 to fix the ultrasonic guided wave probe 6.

[0048] In some embodiments, the clamping assembly 4 also includes a second fixed seat 411 fixed to the outer surface of the clamping sleeve 401, and a first guide rod 413 arranged between the outer surface of the clamping sleeve 401 and the second fixed seat 411 along the moving direction of the embedding piece 402. A pull plate 412 is provided on the second end of the embedding piece 402. The pull plate 412 is movably mounted on the first guide rod 413 and can move along the extension direction of the first guide rod 413. The first return spring 403 is mounted on the first guide rod 413, one end of which is connected to the pull plate 412 and the other end is connected to the second fixed seat 411. When the embedding piece 402 moves relative to the shell of the clamping sleeve 401 under the extrusion of the probe fixing piece 601 or the elastic force of the first return spring 403, the first guide rod 413 can maintain the moving direction of the embedding piece 402, thereby improving the stability of the device.

[0049] like Figure 5 As shown, in some embodiments, first guide rods 413 are symmetrically arranged on both sides of the embedded component 402, and each first guide rod 413 is sleeved with a first return spring 403, so as to further improve the stability of the device.

[0050] like Figure 3 , Figure 4 and Fig.11As shown, the pushing assembly 3 includes a pushing sleeve 302 for accommodating a pushing spring 301, one end of the pushing spring 301 is connected to the inner wall of the pushing sleeve 302, and the other end is connected to the clamping assembly 4 through a baffle 303. The pushing assembly 3 also includes a locking block 304 for stopping the baffle 303, and the locking block 304 can move through the shell of the pushing sleeve 302 to switch the locking state of the pushing spring 301.

[0051] Specifically, a locking opening 305 for the locking block 304 to pass through is provided on the shell of the push sleeve 302. When the device is not in use, the locking block 304 enters the shell of the push sleeve 302 through the locking opening 305 and stops the baffle 303, so that the push spring 301 remains in a compressed state. When the device is used to measure the pipeline 7, the staff moves the locking block 304 to the outside from the locking opening 305 to release its stopping effect on the baffle 303 and release the push spring 301. Under the thrust of the push spring 301, the clamping assembly 4 drives the ultrasonic guided wave probe 6 to contact the pipe wall of the pipeline 7, thereby realizing the measurement of the pipeline 7.

[0052] like Figure 4 and Fig.11 As shown, in some embodiments, in order to facilitate the push spring 301 to apply a push force to the clamping assembly 4, a push rod 306 is provided between the baffle 303 and the clamping sleeve 401, which can more conveniently apply a push force to the clamping assembly 4.

[0053] like Figure 4 and Figure 7 As shown, in some embodiments, locking holes 305 and locking blocks 304 are provided on the four sides of the push sleeve 302, which can more stably stop the baffle 303. In some embodiments, locking holes 305 and locking blocks 304 can be provided only on two opposite sides of the push sleeve 302. Under the premise of ensuring stability, the locking state of the push spring 301 can be switched more conveniently.

[0054] like Figure 3-Figure 11As shown, the detection unit 2 includes a swing assembly 5, and the swing assembly 5 includes a synchronous member 503 that penetrates the embedded member 402 to connect the inside and outside of the clamping sleeve 401, and a first swing arm 501 and a second swing arm 502 that are fixedly connected. The connection between the first swing arm 501 and the second swing arm 502 is hingedly arranged on the outside of the housing of the clamping sleeve 401, and the free end of the first swing arm 501 is connected to the locking block 304. The extension direction of the push spring 301 is the first direction, and the embedded member 402 moves along the second direction to penetrate the clamping sleeve 401; in the initial state, the locking block 304 stops the baffle 303; the second swing arm 502 is provided with a first slide groove 504 arranged along the second direction, and the synchronous member 503 is located at The first end of the outside of the clamping sleeve 401 is movably arranged in the first sliding groove 504, and the second end of the synchronous member 503 located inside the clamping sleeve 401 is arranged at the end of the engaging and fixing groove 602 of the embedding member 402. The clamping assembly 4 includes an extrusion spring 404 arranged along the first direction, one end of the extrusion spring 404 is connected to the inner wall of the clamping sleeve 401, and the other end can be connected to the probe fixing member 601. Under the action of the extrusion spring 404, the probe fixing member 601 squeezes the second end of the synchronous member 503 to move the synchronous member 503 along the first direction, and drives the first swing arm 501 to rotate around the connection so that the locking block 304 disengages from the baffle 303 to release the locking state of the push spring 301.

[0055] It should be noted that the initial state refers to the state when the ultrasonic waveguide probe 6 is not installed in the clamping assembly 4. The process of the staff installing and removing the ultrasonic waveguide probe 6 and the detection process after the installation are not the initial state. It should also be noted that during the normal use of the device, the first direction can be any direction. The operation of the device is described below with compressing the push spring 301 along the first direction as upward and releasing the push spring 301 as downward:

[0056] Specifically, when the ultrasonic waveguide probe 6 is not installed, the locking block 304 arranged at the free end of the first swing arm 501 passes through the locking port 305 and is located inside the push sleeve 302 and stops the baffle 303, so that the push spring 301 is in a compressed state. The ultrasonic waveguide probe 6 is installed, and the probe fixture 601 is pushed upward into the clamping sleeve 401 along the first direction. The embedded part 402 moves to the outside of the clamping sleeve 401 under the extrusion of the probe fixture 601 by means of its inclined chamfer 4025 toward the probe fixture 601. The probe fixture 601 continues to be pushed upward, and the probe fixture 601 begins to contact the extrusion spring 404 and compress it. As the probe fixture 601 continues to be pushed upward, when the wall surface of the embedded groove 602 located on the upper side completely exceeds the second end of the synchronizer 503 arranged at the end of the embedded part 402, at this time, the embedded part 402 can be completely embedded in the embedded groove 602, and the ultrasonic waveguide probe 6 is stopped. The downward elastic force of the extrusion spring 404 causes the upper side wall of the embedding groove 602 to downwardly squeeze the second end of the synchronous member 503 located in the embedding groove 602 along the first direction, so that the synchronous member 503 as a whole moves downward along the first direction. The first end of the synchronous member 503 located in the first slide groove 504 can drive the first swing arm 501 and the second swing arm 502 to rotate around the hinge seat 505 when the first end of the synchronous member 503 is displaced along the first direction, and drive the locking block 304 at the free end of the first swing arm 501 to separate from the baffle 303, thereby releasing the locking state of the push spring 301.

[0057] At this time, the embedding piece 402 and the embedding groove 602 have completed the embedding cooperation, and the ultrasonic guided wave probe 6 is firmly connected to the clamping assembly 4. At the same time, under the series action of the extrusion spring 404-synchronizing piece 503-first swing arm 501 and the second swing arm 503, the locking block 304 is separated from the baffle 303, and the push spring 301 is released from the locked state. Under the pushing action of the push spring 301, the clamping assembly 4 drives the ultrasonic guided wave probe 6 to contact the pipe wall of the pipe 7, and the device starts to detect the pipe 7.

[0058] In the process of pushing the ultrasonic waveguide probe 6 upward until it is embedded, the embedded part 402 will be displaced in the second direction under the action of the probe fixing part 601 and the first reset spring 403. At this time, the synchronous part 503 penetrating the embedded part 402 will also be driven to move in the second direction, and the first end of the synchronous part 503 is located in the first slide groove 504. Since the first slide groove 504 is arranged along the second direction, the first end of the synchronous part 503 can only slide in the groove of the first slide groove 504, and cannot drive the second swing arm 502 to rotate, and the locking block 304 cannot be displaced either. This means that in the process of pushing the probe fixing part 601 upward along the first direction until it is embedded, the displacement of the synchronous part 503 driven by the embedded part 402 will not affect the locking state of the push spring 301, thereby improving the stability and safety of personnel during operation.

[0059] like Figure 3 , Figure 4 and Figure 7 As shown, in some embodiments, a protective cover 410 for protecting the swing assembly 5 is provided on the pushing assembly 3 and the clamping assembly 4. The protective cover 410 is provided with a swing groove for the free end to swing near the free end of the first swing arm 501, thereby protecting the swing assembly 5 while avoiding unnecessary constraints on the swing arm.

[0060] like Figure 6 As shown, in some embodiments, the first end of the synchronizer 503 located on one side of the first slide groove 504 includes a flat plate 5031, a supporting protrusion 5032 and a sliding protrusion 5033, and the first slide groove 504 is further provided with a notch 5041 for passing the supporting protrusion 5032. Specifically, the sliding protrusion 5033 is arranged in the first slide groove 504 and can slide along the first slide groove 504, the sliding protrusion 5033 is connected to the supporting protrusion 5032 passing through the notch 5041, and the other end of the supporting protrusion 5032 is connected to the flat plate 5031, so that the first end of the synchronizer 503 can slide relative to the first slide groove 504 more stably or drive the second swing arm 502 to rotate.

[0061] At the same time, if Fig.10 As shown, the second end of the synchronous member 503 includes an extrusion block 5034, a synchronization rod 5035 and a synchronization plate 5036. Specifically, the extrusion block 5034 is disposed at the end of the embedded member 402 for cooperating with the embedded groove 602, and the extrusion block 5034 faces the upper side wall of the embedded groove 602, so that it can move along the first direction under the extrusion of the probe fixing member 601, and drive the synchronization plate 5036 and the synchronization rod 5035 connected thereto to move along the first direction.

[0062] like Figure 7 and Figure 8 As shown, in some embodiments, a slide plate 405 that can move along a first direction is provided in the clamping sleeve 401, a compression spring 404 is connected to a first side of the slide plate 405, and an installation groove 408 that can engage the probe fixing part 601 is provided on the opposite second side of the slide plate 405.

[0063] Specifically, in order to improve the stability of the clamping assembly 4 and the ultrasonic guided wave probe 6 after connection, a slide plate 405 is provided in the clamping sleeve 401. When the probe fixing part 601 is pushed upward along the first direction, the probe fixing part 601 is embedded in the installation groove 408 on the second side of the slide plate 405 to prevent displacement during the installation process, and then compress the extrusion spring 404 located on the first side of the slide plate 405.

[0064] like Fig.10As shown, in some embodiments, a second guide rod 4021 along the first direction and a second return spring 4022 sleeved on the second guide rod 4021 are provided in the embedded part 402, one end of the second return spring 4022 is connected to the synchronizer 503, and the other end is connected to the inner wall of the embedded part 402.

[0065] Specifically, when the extrusion block 5034 is not squeezed by the probe fixing member 601, the extrusion block 5034 returns to its initial state under the action of the second return spring 4022 sleeved on the second guide rod 4021, so that the locking block 304 can restore the locking state of the push spring 301.

[0066] like Figure 4 , Figure 5 and Fig. 9 As shown, in some embodiments, a first fixed seat 406 is provided on the outer surface of the clamping sleeve 401, and the clamping assembly 4 also includes a reset lever 407 rotatably hinged to the first fixed seat 406, and a second slide groove 4071 is provided on the reset lever 407, and a sliding rod 4023 located in the second slide groove 4071 is provided at the second end of the embedded part 402, and a pressure plate 4072 is provided at one end of the reset lever 407, and the pressure plate 4072 is pressed to drive the embedded part 402 to move through the sliding rod 4023.

[0067] Specifically, a hinge shaft rotatably connected to a reset lever 407 is provided on the first fixing seat 406. When the embedding relationship between the embedded part 402 and the embedding groove 602 needs to be released, the friction force when the embedded part 402 is displaced in the second direction is increased due to the elastic force applied by the extrusion spring 404 to the embedded part 402 in the first direction, which makes the operation inconvenient. A reset lever 407 is provided at the second end of the embedded part 402 outside the clamping sleeve 401. By pressing the pressing plate 4072, the reset lever 407 rotates around the hinge shaft, so that the sliding rod 4023 at the end of the embedded part 402 can drive the embedded part 402 to move in the second direction while sliding relative to the second sliding groove 4071. The reset lever 407, as a labor-saving lever, overcomes the problem that the embedded part 402 is difficult to displace in the second direction under the action of the extrusion spring 404, and facilitates the installation and removal of the ultrasonic guided wave probe 6.

[0068] like Figure 5 As shown, in some embodiments, the slide bar 4023 is mounted on the end of the embedded component 402 through a slide bar mounting seat 4024.

[0069] like Figure 5 As shown, in some embodiments, a pressure plate 4072 is provided at one end of the reset lever 407, and a lever limit seat 4073 is provided at the other end and is installed on the clamping sleeve 401 to protect the synchronous member 503, so as to prevent the reset lever 407 from touching the synchronous member 503 and affecting the locking state of the push spring 301 during movement.

[0070] In some embodiments, a friction rubber pad is provided on the surface of the pressing plate 4072 to facilitate the staff to press the pressing plate 4072.

[0071] like Figure 5 As shown, in some embodiments, a reset torsion spring 409 is provided at the hinge between the reset lever 407 and the first fixing seat 406 .

[0072] Specifically, when the ultrasonic waveguide probe 6 is not installed and the pressure plate 4072 is not pressed, the reset torsion spring 409 is in an unstressed state. During the process of installing or removing the ultrasonic waveguide probe 6 or pressing the pressure plate 4072, that is, when the embedded component 402 is displaced along the second direction, the reset torsion spring 409 is stressed and has a tendency to recover to the unstressed state. On the one hand, it can assist the first reset spring 403 to act on the embedded component 402 to enable it to complete the embedded fit more quickly. On the other hand, after using the reset lever 407 to adjust the position of the embedded component 402, the reset lever 407 can be restored to its initial state, which is convenient for the next pressing operation.

[0073] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0074] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A pipeline detection ultrasonic guided wave probe fixing device, characterized in that: The invention comprises a positioning unit (1) for being movably mounted on the outside of a pipeline (7) to be tested, and a plurality of detection units (2) arranged inside the positioning unit (1); wherein a guide rail (101) surrounding the pipeline is arranged inside the positioning unit (1); one end of the detection unit (2) is movably connected to the guide rail (101), and the other end is provided with an ultrasonic guided wave probe (6); the ultrasonic guided wave probe (6) is capable of contacting the outer wall of the pipeline (7).

2. The pipeline detection ultrasonic guided wave probe fixing device according to claim 1 is characterized in that: The detection unit (2) comprises a pushing component (3) and a clamping component (4); wherein: One end of the pushing component (3) is movably connected to the guide rail (101), the pushing component (3) comprises a pushing spring (301), and the pushing component (3) is connected to the clamping component (4) via the pushing spring (301); The clamping assembly (4) is used to clamp the ultrasonic guided wave probe (6).

3. The pipeline detection ultrasonic guided wave probe fixing device according to claim 2 is characterized in that: The ultrasonic guided wave probe (6) is connected to a probe fixing part (601), the clamping assembly (4) comprises a clamping sleeve (401) for accommodating the probe fixing part (601), an embedding part (402) capable of penetrating the shell is movably arranged on the shell of the clamping sleeve (401), and a corresponding embedding groove (602) is arranged on the probe fixing part (601).

4. The pipeline detection ultrasonic guided wave probe fixing device according to claim 3 is characterized in that: The first end of the embedding piece (402) used for embedding the embedding groove (602) is provided with an inclined chamfer (4025) toward the probe fixing piece (601), so that the embedding piece (402) can move relative to the shell of the clamping sleeve (401) under the squeezing action of the probe fixing piece (601), and the second end of the embedding piece (402) is connected to the first return spring (403), and the other end of the first return spring (403) is connected to the clamping sleeve (401).

5. The pipeline detection ultrasonic guided wave probe fixing device according to claim 3 is characterized in that: The pushing assembly (3) comprises a pushing sleeve (302) for accommodating the pushing spring (301); one end of the pushing spring (301) is connected to the inner wall of the pushing sleeve (302), and the other end is connected to the clamping assembly (4) through a baffle (303); the pushing assembly (3) further comprises a locking block (304) for stopping the baffle (303); the locking block (304) can movably penetrate the housing of the pushing sleeve (302) to switch the locking state of the pushing spring (301).

6. The pipeline detection ultrasonic guided wave probe fixing device according to claim 5 is characterized in that: The detection unit (2) comprises a swing assembly (5), the swing assembly (5) comprising a synchronizing member (503) penetrating the embedded member (402) to connect the inside and outside of the clamping sleeve (401), and a first swing arm (501) and a second swing arm (502) fixedly connected, the connection between the first swing arm (501) and the second swing arm (502) being hingedly arranged on the outside of the housing of the clamping sleeve (401), the free end of the first swing arm (501) being connected to the locking block (304), the extension direction of the push spring (301) being the first direction, and the embedded member (402) being movable along the second direction to penetrate the clamping sleeve (401); In an initial state, the locking block (304) stops the baffle (303); The second swing arm (502) is provided with a first slide groove (504) arranged along the second direction, the first end of the synchronization member (503) located outside the clamping sleeve (401) is movably arranged in the first slide groove (504), the second end of the synchronization member (503) located inside the clamping sleeve (401) is arranged at the end of the embedding member (402) that is embedded in the embedding groove (602), and the clamping assembly (4) includes a compression spring (404) arranged along the first direction, the compression spring One end of the spring (404) is connected to the inner wall of the clamping sleeve (401), and the other end can be connected to the probe fixing member (601). Under the action of the extrusion spring (404), the probe fixing member (601) squeezes the second end of the synchronous member (503) to move the synchronous member (503) along the first direction, and drives the first swing arm (501) to rotate around the connection so that the locking block (304) is separated from the baffle (303) to release the locking state of the push spring (301).

7. The pipeline detection ultrasonic guided wave probe fixing device according to claim 6 is characterized in that: A slide plate (405) capable of moving along the first direction is provided in the clamping sleeve (401), the extrusion spring (404) is connected to a first side surface of the slide plate (405), and a mounting groove (408) capable of engaging the probe fixing member (601) is provided on a second side surface opposite to the slide plate (405).

8. The pipeline detection ultrasonic guided wave probe fixing device according to claim 6, characterized in that: The embedded part (402) is provided with a second guide rod (4021) along the first direction and a second return spring (4022) sleeved on the second guide rod (4021); one end of the second return spring (4022) is connected to the synchronous part (503), and the other end is connected to the inner wall of the embedded part (402).

9. The pipeline detection ultrasonic guided wave probe fixing device according to claim 4, characterized in that: The outer surface of the clamping sleeve (401) is provided with a first fixed seat (406), and the clamping assembly (4) also includes a reset lever (407) rotatably hinged to the first fixed seat (406), and the reset lever (407) is provided with a second slide groove (4071), and the second end of the embedded part (402) is provided with a slide rod (4023) located in the second slide groove (4071), and one end of the reset lever (407) is provided with a pressure plate (4072), and the pressure plate (4072) is pressed to drive the embedded part (402) to move through the slide rod (4023).

10. The pipeline detection ultrasonic guided wave probe fixing device according to claim 9, characterized in that: A reset torsion spring (409) is provided at the hinge between the reset lever (407) and the first fixing seat (406).

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