A mounting device for a railway acoustic emission sensor
The clamping design of the fixing seat and mounting seat solves the problem of easy loosening of the threaded connection of the conduit, realizes the stable fixation of the outlet conduit, reduces costs, protects the signal line, and improves the reliability of the railway acoustic emission sensor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GOLDEN MAPLE DATA SERVICE CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-31
AI Technical Summary
In existing railway acoustic emission sensor mounting devices, the threaded connection of the conduit is prone to loosening, resulting in insufficient protection of the signal line and increased design and material costs.
The cable outlet tube is clamped by both a fixed base and a mounting base. The design of the limiting part and the blocking part ensures a stable connection between the cable outlet tube and the fixed device, prevents loosening, and reduces material and design costs.
It improves the installation stability of the output conduit, prevents loosening, reduces material and design costs, protects the signal line from damage, and enhances the overall reliability and service life of the device.
Smart Images
Figure CN224581474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of railway rail damage detection equipment, specifically to a fixing device for a railway acoustic emission sensor. Background Technology
[0002] The research and application of acoustic emission technology in railway system safety inspection includes rail damage detection, wheel damage detection, wheel and axle bearing damage detection, railway structural safety monitoring, and car body material safety monitoring. In order to ensure the efficient and safe operation of high-speed railways, acoustic emission technology is used to detect crack damage, especially for rail fracture caused by rail crack damage, which is a major accident in railway safety. Acoustic emission technology has a significant advantage in rail crack damage detection, especially in high-speed railway inspection.
[0003] For example, the acoustic emission sensor fixing device disclosed in patent CN221572435U clamps a steel rail from both sides for fixation. A sensor assembly is installed inside the fixing device to detect cracks and damage to the steel rail. Since the signal wire of the sensor assembly needs to pass outward from inside the fixing device, an outward-extending conduit is required on the fixing device to allow the signal wire to pass through and protect it. The conduit and the fixing device are generally connected by threads, as shown in the conduit installation method disclosed in the aforementioned prior art patent with accompanying drawings. The conduit is screwed into the threaded hole of the fixing device through a threaded section. However, threaded connections have low reliability and are prone to loosening. Utility Model Content
[0004] The purpose of this utility model is to provide a solution that solves the problem of easy loosening caused by the threaded connection of the conduit to the fixing device. By using a fixing seat and a mounting seat to clamp and fix the conduit, the conduit is made as a separate component and is not easy to loosen after being installed on the fixing device, thereby reducing costs and improving the installation firmness of the conduit.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fixing device for a railway acoustic emission sensor, comprising a fixing base, a mounting base, and an outlet tube. The fixing base is used to fix and connect to the railway track. The fixing base and / or the mounting base are provided with a receiving groove. The mounting base is installed on the fixing base and together with the receiving groove forms a receiving cavity. The receiving cavity is used to accommodate the acoustic emission sensor. The fixing base has a first mounting port on its side and the mounting base has a second mounting port on its side. The first mounting port and the second mounting port are arranged opposite to each other and form a mounting cavity. The mounting cavity communicates with the receiving cavity. The outlet tube is at least partially inserted into the mounting cavity so that the first mounting port and the second mounting port clamp the outlet tube.
[0006] In one embodiment, a limiting part is provided on the outer wall of the outlet tube, the limiting part extends circumferentially along the outlet tube to form an annular shape, and a limiting groove is provided on the inner wall of the first mounting port and the second mounting port, the shape of the limiting groove corresponding to and matching the limiting part, so that the limiting part can be inserted into the limiting groove.
[0007] In one embodiment, the limiting part has at least one notch along the circumferential direction, and the inner wall of the first mounting port or the second mounting port is provided with a blocking part that extends into the notch to prevent the limiting part from rotating.
[0008] In one embodiment, the inner periphery of the outlet tube facing the receiving cavity is provided with a flared portion, and the inner diameter of the flared portion gradually increases towards the receiving cavity.
[0009] In one embodiment, the flared portion is an inclined wall or an arc-shaped wall.
[0010] In one embodiment, the fixed base is provided with a first receiving groove, and the mounting base is provided with a second receiving groove. The first receiving groove and the second receiving groove are arranged opposite to each other to jointly form the receiving cavity.
[0011] In one embodiment, the first mounting opening is laterally connected to the first receiving groove, and the second mounting opening is laterally connected to the second receiving groove, so that the mounting cavity is laterally fully connected to the receiving cavity.
[0012] In one embodiment, a limiting part is provided on the outer wall of the outlet pipe, and a limiting groove is provided on the inner wall of the first mounting port and / or the second mounting port, with the limiting part extending into each limiting groove.
[0013] In one embodiment, the number of the limiting parts is multiple, and the multiple limiting parts are evenly arranged along the circumference of the outlet tube.
[0014] In one embodiment, the fixing seat includes a first clamping part, a second clamping part, and a locking mechanism. The first clamping part and the second clamping part are respectively used to clamp the side protrusions on both sides of the railway track. The locking mechanism connects the first clamping part and the second clamping part. The mounting seat is correspondingly installed above the first clamping part or the second clamping part to clamp the cable outlet tube from above and below.
[0015] The advantages of this application compared to the prior art are: According to an embodiment of this application, a fixing device for a railway acoustic emission sensor has two advantages. First, the outlet tube in this embodiment is an independent component relative to the fixing device, which can be processed separately without being integrated with the fixing seat and mounting seat in the fixing device, thus reducing design and manufacturing costs. Second, the outlet tube in this embodiment is clamped and fixed by the fixing device itself, and its clamping strength depends on the fixing connection strength between the fixing seat and the mounting seat of the fixing device itself. As long as the structure of the fixing device itself is stable, its clamping strength for the outlet tube is also stable, thereby ensuring the firmness of the outlet tube's fixed installation on the fixing device and preventing the outlet tube from loosening. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a cross-sectional view of a mounting device for a railway acoustic emission sensor according to an embodiment of this application; Figure 2 This is a schematic diagram of the fixing seat and mounting seat clamping and fixing the outlet pipe in the embodiments of this application; Figure 3 This is a schematic diagram of the fixing device installed on the railway track in an embodiment of this application. Detailed Implementation
[0018] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.
[0019] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0020] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0021] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.
[0022] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.
[0023] Please refer to Figure 3 The diagram shows a schematic overall structure of a fixing device for a railway acoustic emission sensor according to an embodiment of this application.
[0024] like Figure 3 As shown in the figure, an embodiment of this application discloses a fixing device for a railway acoustic emission sensor, including a fixing base 100, a mounting base 200, and an outlet pipe 300. The fixing base 100 is used to fix and connect to a railway track 400. The fixing base 100 and / or the mounting base 200 are provided with a receiving groove. The mounting base 200 is installed on the fixing base 100 and together they enclose the receiving groove to form a receiving cavity 510. The receiving cavity 510 is used to accommodate the acoustic emission sensor. The fixing base 100 has a first mounting port 120 on its side, and the mounting base 200 has a second mounting port 220 on its side. The first mounting port 120 and the second mounting port 220 are arranged opposite to each other and enclose the mounting cavity 520. The mounting cavity 520 communicates with the receiving cavity 510. The outlet pipe 300 is at least partially inserted into the mounting cavity 520 so that the first mounting port 120 and the second mounting port 220 clamp the outlet pipe 300.
[0025] Please refer to Figure 1In this embodiment, the fixing base 100 is used to fix the railway track 400 so that the fixing device is fixed on the railway track 400. The fixing device is used to install the acoustic emission sensor, thereby realizing the installation and fixation of the acoustic emission sensor on the railway track 400, and enabling the acoustic emission sensor to detect damage to the railway track 400. The fixing device uses a receiving cavity 510 to accommodate and install the acoustic emission sensor, so as to protect the acoustic emission sensor. Specifically, the fixing base 100 and / or the mounting base 200 are provided with receiving grooves. If the receiving groove is provided on the fixing base 100, its opening faces the mounting base 200. If the receiving groove is provided on the mounting base 200, its opening faces the fixing base 100. If both the fixing base 100 and the mounting base 200 are provided with receiving grooves, the openings of the two receiving grooves face each other. Thus, when the mounting base 200 is fixedly installed on the fixing base 100, the receiving groove is enclosed by the fixing base 100 and the mounting base 200 to form the receiving cavity 510. Before fixing the mounting base 200 to the fixing base 100, the acoustic emission sensor assembly is first installed in the receiving groove, and then the mounting base 200 is fixedly installed on the fixing base 100, forming a receiving cavity 510 by enclosing the receiving groove, thereby encapsulating the acoustic emission sensor in the receiving cavity 510.
[0026] In this embodiment, the signal line of the acoustic emission sensor located in the receiving cavity 510 needs to extend to the outside of the fixing device. In the prior art, the conduit is usually directly threaded to the fixing device, allowing the signal line to pass through the conduit. On the one hand, the threaded connection is easy to loosen; on the other hand, the threaded sections of the conduit intersect after entering the threaded channel of the fixing device. The signal line of the acoustic emission sensor needs to further enter the threaded section to enter the threaded channel, which actually reduces the inner diameter of the channel through which the signal line can pass. Moreover, the ends of the threaded sections form sharp edges, which can easily damage the signal line and scratch the installers.
[0027] In this embodiment, the mounting base 100 has a first mounting port 120 on its side, and the mounting base 200 has a second mounting port 220 on its side. When the mounting base 200 is fixed to the mounting base 100, the first mounting port 120 and the second mounting port 220 are arranged opposite each other and form a mounting cavity 520. The mounting cavity 520 is connected to the receiving cavity 510. The cable outlet tube 300 is at least partially inserted into the mounting cavity 520. Thus, the internal space of the cable outlet tube 300 is also connected to the receiving cavity 510, so that the signal line of the acoustic emission sensor can pass through the cable outlet tube 300 to the outside of the fixed device. The outlet tube 300 is at least partially disposed within the receiving cavity 510, such that the fixing seat 100 abuts against one side of the outlet tube 300 through the first mounting port 120, and the mounting seat 200 abuts against the other side of the outlet tube 300 through the second mounting port 220. Thus, the first mounting port 120 and the second mounting port 220 together clamp the outlet tube 300, achieving the installation and fixation of the outlet tube 300 on the fixing device. Therefore, on the one hand, in this embodiment, the outlet tube 300 is an independent component relative to the fixing device, and can be processed separately without being integrated with the fixing seat 100 and mounting seat 200 in the fixing device, reducing design and manufacturing costs; on the other hand, in this embodiment, the outlet tube 300 is clamped and fixed by the fixing device itself, and its clamping strength depends on the fixing connection strength between the fixing seat 100 and the mounting seat 200 of the fixing device itself. As long as the fixing device itself has a stable structure, its clamping strength for the outlet tube 300 is also stable, thereby ensuring the secure installation of the outlet tube 300 on the fixing device and preventing the outlet tube 300 from loosening. In this embodiment, the fixed base 100 and the mounting base 200 can be connected by bolts, so that the mounting base 200 is tightly attached to the fixed base 100 and the clamping strength of the first mounting port 120 and the second mounting port 220 on the outlet pipe 300 is improved.
[0028] It should be noted that the shapes of the first mounting port 120 and the second mounting port 220 in this embodiment match the circumferential contour of the outlet tube 300. Preferably, the outlet tube 300 is a circular tube with a circular circumferential contour. Therefore, the shapes of the first mounting port 120 and the second mounting port 220 are both semi-circular arcs that can fit against one half of the outer wall of the outlet tube 300. When the outlet tube 300 is clamped and fixed in the mounting cavity 520, the first mounting port 120 abuts against the half of the outer circumferential wall of the outlet tube 300 in the mounting cavity 520, and the second mounting port 220 abuts against the other half of the outer circumferential wall of the outlet tube 300 in the mounting cavity 520. In this preferred embodiment, the outlet tube 300 is a circular tube, which can disperse stress. When the first mounting port 120 and the second mounting port 220 apply a large compressive force to the outlet tube 300 to ensure clamping and fixing strength, deformation of the outlet tube 300 is avoided.
[0029] In this embodiment, the fixing device secures the outlet tube 300 by clamping it. Essentially, this increases the friction between the outlet tube 300 and the fixing device, preventing the outlet tube 300 from sliding out of the mounting cavity 520 and detaching from the fixing device along its extension direction. In one embodiment, the outlet tube 300 is designed as a round tube to improve its resistance to deformation, thereby increasing its pressure resistance. This, in turn, increases the clamping force of the fixing device on the outlet tube 300, enhancing friction and ensuring a secure installation of the outlet tube 300 on the fixing device, preventing it from detaching. However, if the outlet tube 300 is subjected to high clamping pressure for a long period, its service life may still be reduced.
[0030] Furthermore, in one preferred embodiment of this application, a limiting portion 310 is provided on the outer wall of the outlet tube 300. The limiting portion 310 extends circumferentially along the outlet tube 300 to form a ring. A limiting groove 521 is provided on the inner wall of both the first mounting port 120 and the second mounting port 220. The shape of the limiting groove 521 corresponds to and matches the limiting portion 310, allowing the limiting portion 310 to extend into the limiting groove 521. In this embodiment, the limiting portion 310 on the outlet tube 300 extends into the limiting groove 521. The limiting groove 521 prevents the limiting portion 310 from moving along the extension direction of the outlet tube 300, thereby preventing the outlet tube 300 from moving away from the receiving cavity 510, i.e., preventing the outlet tube 300 from detaching from the fixing device, further improving the fixing effect of the fixing device on the outlet tube 300. In this embodiment, the movement of the outlet tube 300 is hindered by restricting the limiting part 310, which can appropriately reduce the clamping force of the fixing device on the outlet tube 300, reduce the pressure on the outlet tube 300, and improve the service life of the outlet tube 300. Furthermore, in this embodiment, the limiting part 310 extends circumferentially along the outlet tube 300 to form a ring, and the limiting grooves 521 on the first mounting port 120 and the second mounting port 220 are both arc-shaped strip structures. One half of the limiting part 310 extends into one limiting groove 521 and the other half extends into the other limiting groove 521, so that the entire outer periphery of the outlet tube 300 is hindered by the limiting part 310, thus improving the effect of hindering the movement of the outlet tube 300.
[0031] In one embodiment of this application, the limiting part 310 is an annular structure surrounding the outer periphery of the outlet tube 300. The fixing device prevents the limiting part 310 from moving away from the receiving cavity 510 through the limiting groove 521, thereby preventing the outlet tube 300 from detaching from the fixing device. However, the annular limiting part 310 can rotate relative to the limiting groove 521. Specifically, if the clamping force of the fixing device on the outlet tube 300 is small, resulting in a small frictional force between the outlet tube 300 and the first mounting port 120 and the second mounting port 220, the outlet tube 300 can more easily overcome the frictional force and rotate around its own central axis when subjected to external force. The rotation of the outlet tube 300 is relative to the fixing device and the acoustic emission sensor, so the signal line passing through the outlet tube 300 is prone to relative friction with the outlet tube 300, which may cause damage to the outlet tube 300.
[0032] Therefore, in a preferred embodiment of this application, the limiting portion 310 preferably has at least one notch along the circumferential direction, and the inner wall of the first mounting port 120 or the second mounting port 220 is provided with a corresponding blocking portion extending into the notch to prevent the limiting portion 310 from rotating. The presence of the notch disrupts the integrity of the annular structure of the limiting portion 310. The notch can be located at the outer periphery of the limiting portion 310, so that the circular outer periphery of the limiting portion 310 is recessed at the notch. The notch can also extend from the outer periphery of the limiting portion 310 to the inner periphery, so that the limiting portion 310 is completely disconnected at the notch. The inner wall of the first mounting port 120 or the second mounting port 220 is provided with a corresponding blocking portion extending into the notch, so that the blocking portion prevents the rotation of the limiting portion 310, thereby preventing the outlet tube 300 from rotating around its own central axis, thereby avoiding damage to the signal line of the acoustic emission sensor by the outlet tube 300.
[0033] In this embodiment, the cable outlet 300 is at least partially disposed in the mounting cavity 520, preferably with one end of the cable outlet 300 extending into the mounting cavity 520 near the receiving cavity 510. In this embodiment, if the inner periphery of the end of the cable outlet 300 located in the mounting cavity 520 is a sharp angle (such as a right angle), it will be a relatively sharp edge, which can easily damage the signal line when it passes through the cable outlet 300. Therefore, further, in one embodiment of this application, the inner periphery of the cable outlet 300 facing the receiving cavity 510 is preferably provided with a flared portion 330, and the inner diameter of the flared portion 330 gradually increases towards the receiving cavity 510. Please refer to... Figure 2In this embodiment, a flared portion 330 is provided on the inner periphery of the end of the outlet tube 300 facing the receiving cavity 510, and the inner diameter of the flared portion 330 gradually increases towards the receiving cavity 510. On the one hand, this eliminates the sharp corner structure of the inner periphery of the end of the outlet tube 300, so as to eliminate sharp edges and avoid damage to the signal line. On the other hand, it makes the port of the outlet tube 300 for the signal line to enter gradually increase towards the receiving cavity 510, so as to facilitate the introduction of the signal line into the outlet tube 300. Furthermore, when the signal line in the receiving cavity 510 is not directly facing the outlet tube 300, and the signal line needs to extend at an angle to overcome the misalignment and enter the outlet tube 300, the wall surface of the flared portion 330 provides a support for the signal line, guiding the signal line to enter the outlet tube 300 in an inclined posture. There is no need to bend the signal line into a right angle at the port of the outlet tube 300, which facilitates the threading, saves the length of the signal line, and protects the signal line from damage. Furthermore, in the preferred embodiment of this application, the flared portion 330 is an inclined wall or an arc-shaped wall, which can be processed by a chamfering process during manufacturing.
[0034] In this embodiment, the outlet tube 300 is held by the first mounting port 120 and the second mounting port 220. The mounting cavity 520 formed by the first mounting port 120 and the second mounting port 220 needs to communicate with the receiving cavity 510 to allow the outlet tube 300 to communicate with the receiving cavity 510, thereby introducing the signal line from the receiving cavity 510 into the outlet tube 300. The receiving cavity 510 is formed by the mounting base 200 and the fixing base 100 jointly enclosing the receiving groove. Therefore, at least one of the first mounting port 120 and the second mounting port 220 that make up the mounting cavity 520 needs to communicate with the receiving groove to achieve communication between the receiving cavity 510 and the mounting cavity 520 after the mounting base 200 and the fixing base 100 are connected.
[0035] In this embodiment, the fixing base 100 preferably has a first receiving groove 110, and the mounting base 200 has a second receiving groove 210. The first receiving groove 110 and the second receiving groove 210 are arranged opposite to each other to jointly form the receiving cavity 510. If the receiving cavity 510 is formed solely by the first receiving groove 110 or the second receiving groove 210, the acoustic emission sensor needs to be completely placed in the first receiving groove 110 or the second receiving groove 210 during installation. Since the acoustic emission sensor does not protrude outside the groove, it is inconvenient to operate. In this embodiment, the receiving cavity 510 is formed by the first receiving groove 110 and the second receiving groove 210. During installation, the acoustic emission sensor is first placed in the first receiving groove 110 or the second receiving groove 210, with part of the acoustic emission sensor exposed outside the groove, facilitating operation, such as fixing, debugging, and threading the acoustic emission sensor. Then, the mounting base 200 is fixedly installed on the fixing base 100, so that the exposed part of the acoustic emission sensor is covered by another receiving groove, ultimately making the acoustic emission sensor completely inside the receiving cavity 510. Furthermore, in this embodiment, the contact part between the mounting base 200 and the fixing base 100 corresponds to the central part of the receiving cavity 510. In this way, regardless of the position of the signal line of the acoustic emission sensor, the distance between the output tube 300 and the signal line can be reduced, making it easier to thread the signal line.
[0036] Furthermore, in one embodiment of this application, the first mounting port 120 is laterally connected to the first receiving groove 110, and the second mounting port 220 is laterally connected to the second receiving groove 210, so that the mounting cavity 520 is laterally fully connected to the receiving cavity 510. If the first mounting port 120 is not connected to the first receiving groove 110, and the first mounting port 120 only provides for the installation of the conduit 300, and the connection between the mounting cavity 520 and the receiving cavity 510 is achieved solely through the connection between the second mounting port 220 and the second receiving groove 210, then only half of the mounting cavity 520 is connected to the receiving cavity 510, which is inconvenient for the signal cable to pass through; similarly, if the second mounting port 220 is not connected to the second receiving groove 210, and the connection between the mounting cavity 520 and the receiving cavity 510 is achieved solely through the connection between the first mounting port 120 and the first receiving groove 110, then the connection between the mounting cavity 520 and the receiving cavity 510 is also inconvenient for the signal cable to pass through. In this embodiment, the first mounting port 120 on the fixed base 100 is laterally connected to the first receiving groove 110, and the second mounting port 220 on the mounting base 200 is laterally connected to the second receiving groove 210. Thus, when the mounting base 200 is installed and fixed on the fixed base 100, the mounting cavity 520 formed by the first mounting port 120 and the second mounting port 220 can be laterally fully connected to the receiving cavity 510 formed by the first receiving groove 110 and the second receiving groove 210, thereby increasing the size of the mounting cavity 520 and facilitating the signal line to pass from the receiving cavity 510 into the mounting cavity 520, and finally into the outlet tube 300.
[0037] In some embodiments of this application, a limiting portion 310 is provided on the outer wall of the outlet pipe 300, and a limiting groove 521 is provided on the inner wall of the first mounting port 120 and / or the second mounting port 220, with a corresponding limiting portion 310 extending into each limiting groove 521. In this embodiment, unlike embodiments where the limiting portion 310 has a ring structure, each limiting portion 310 is a single protrusion, and the number can be one, two, or more. When the number is two or more, the limiting portions 310 are discretely arranged, specifically along the circumference of the outlet pipe 300. A corresponding limiting groove 521 is provided on the inner wall of the first mounting port 120 and / or the second mounting port 220, with each limiting groove 521 corresponding to a limiting portion 310, so that a corresponding limiting portion 310 extends into each limiting groove 521. In this embodiment, by providing a number (one, two, or more) of limiting parts 310 that protrude from the outer wall of the outlet tube 300 and are restricted in movement by the limiting groove 521, the movement of the outlet tube 300 along its own axial direction can also be restricted, thereby preventing the outlet tube 300 from detaching from the fixing device. Compared with embodiments where the limiting part 310 has a ring structure, this embodiment can save material costs.
[0038] Furthermore, if a certain number of discretely arranged limiting portions 310 are provided on the outer wall of the outlet pipe 300, preferably multiple limiting portions 310, and the multiple limiting portions 310 are evenly arranged along the circumference of the outlet pipe 300. This ensures that the outlet pipe 300 receives a more uniform blocking force throughout its circumference, further enhancing the blocking effect of the limiting groove 521 on the outlet pipe 300.
[0039] In one embodiment of this application, the fixed base 100 preferably includes a first clamping part 130, a second clamping part 140, and a locking mechanism 150. The first clamping part 130 and the second clamping part 140 are respectively used to clamp the side protrusions of the railway track 400. The locking mechanism 150 connects the first clamping part 130 and the second clamping part 140. The mounting base is correspondingly installed above the first clamping part 130 or the second clamping part 140, clamping the outlet tube 300 from above and below. In this embodiment, one of the first clamping part 130 and the second clamping part 140 is used to connect with the mounting base to form a receiving cavity 510 for the installation of the acoustic emission sensor. In this embodiment, the mounting base is preferably installed on the fixed base 100 from top to bottom, thereby clamping the outlet tube 300 from above and below, allowing the outlet tube 300 to extend horizontally. The mounting base 200 and the fixed base 100 are fixed with bolts. The locking mechanism 150 includes a bolt and a nut. The bolt connects the first clamping part 130 and the second clamping part 140. Rotating the nut adjusts the distance between the first clamping part 130 and the second clamping part 140, thereby adjusting the tightness of the fixing seat 100 clamping the railway track 400. Specifically, the first clamping part 130 and the second clamping part 140 are respectively used to engage the side protrusions on both sides of the railway track 400.
[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A fixing device for a railway acoustic emission sensor, characterized in that, The device includes a fixed base, a mounting base, and a cable outlet. The fixed base is used to fix and connect to the railway track. The fixed base and / or the mounting base are provided with a receiving groove. The mounting base is installed on the fixed base and together they enclose the receiving groove to form a receiving cavity. The receiving cavity is used to accommodate an acoustic emission sensor. The fixed base has a first mounting port on its side, and the mounting base has a second mounting port on its side. The first mounting port and the second mounting port are arranged opposite each other and enclose the mounting cavity. The mounting cavity communicates with the receiving cavity. The cable outlet is at least partially inserted into the mounting cavity so that the first mounting port and the second mounting port clamp the cable outlet.
2. A device for securing a railway acoustic emission sensor according to claim 1, wherein The outer wall of the outlet tube is provided with a limiting part, which extends circumferentially along the outlet tube to form a ring. The inner walls of the first mounting port and the second mounting port are provided with limiting grooves, the shape of which corresponds to and matches the limiting part, so that the limiting part can be inserted into the limiting groove.
3. A device for securing a railway acoustic emission sensor according to claim 2, wherein, The limiting part has at least one notch along the circumferential direction, and the inner wall of the first mounting port or the second mounting port is provided with a blocking part that extends into the notch to prevent the limiting part from rotating.
4. A device for securing a railway acoustic emission sensor according to claim 1, wherein The inner periphery of the outlet tube facing the receiving cavity is provided with a flared part, and the inner diameter of the flared part gradually increases towards the receiving cavity.
5. A device for securing a railway acoustic emission sensor according to claim 4, wherein, The flared section is an inclined wall or an arc-shaped wall.
6. A device for securing a railway acoustic emission sensor according to claim 1, wherein The fixed base is provided with a first receiving groove, and the mounting base is provided with a second receiving groove. The first receiving groove and the second receiving groove are arranged opposite to each other to jointly form the receiving cavity.
7. A device for securing a railway acoustic emission sensor according to claim 6, wherein The first mounting opening is laterally connected to the first receiving groove, and the second mounting opening is laterally connected to the second receiving groove, so that the mounting cavity is completely laterally connected to the receiving cavity.
8. A device for securing a railway acoustic emission sensor according to claim 1, wherein The outer wall of the outlet pipe is provided with a limiting part, and the inner wall of the first mounting port and / or the second mounting port is provided with a limiting groove, and the limiting part extends into each limiting groove.
9. A device for securing a railway acoustic emission sensor according to claim 8, wherein, The number of the limiting parts is multiple, and the multiple limiting parts are evenly arranged along the circumference of the outlet pipe.
10. The apparatus of claim 1, wherein, The fixing seat includes a first clamping part, a second clamping part, and a locking mechanism. The first clamping part and the second clamping part are respectively used to clamp the side protrusions on both sides of the railway track. The locking mechanism connects the first clamping part and the second clamping part. The mounting seat is installed above the first clamping part or the second clamping part to clamp the cable outlet tube from above and below.