A rail geometry monitoring device

Abstract

The embodiment of the present application provides a device for monitoring the geometry of a rail, which relates to the technical field of railway tracks, and is used to solve the problem in the related art that it is inconvenient for staff to inspect and repair the monitor in the device for monitoring the geometry of a rail. The device for monitoring the geometry of a rail provided in the embodiment of the present application includes a base and a monitoring component. The base has a accommodating cavity, and the accommodating cavity has an opening; the monitoring component is arranged in the accommodating cavity, and the monitoring component includes a monitor, and the monitor is used to monitor the geometry of the rail, and the monitoring component is configured to be able to slide along the inner wall of the accommodating cavity toward the outside of the opening so that the monitor extends out of the opening. The device for monitoring the geometry of a rail provided in the embodiment of the present application is used to monitor the geometry of a rail.

Description

Technical Field

[0001] The present application relates to the technical field of railway tracks, and in particular to a device for monitoring the geometric shape and position of railway tracks. Background Art

[0002] During the construction of overhead railway tracks, the geometric position of the rails should be monitored, and monitors are generally used in related technologies for monitoring. In order to prevent the monitoring effect of the monitor from being greatly affected by the harsh environment, the monitor is generally placed in a housing cavity for protection. However, in this way, the staff will be limited by the space of the housing cavity when inspecting and repairing the monitor, and the staff can only operate in a limited space, which greatly reduces the staff's inspection and maintenance work efficiency. Summary of the invention

[0003] In view of this, an embodiment of the present application provides a rail geometry monitoring device to solve the problem that the rail geometry monitoring device in the related art is inconvenient for staff to inspect and repair the monitor.

[0004] To achieve the above-mentioned purpose, the present application discloses a rail geometry monitoring device, comprising a base and a monitoring assembly, wherein the base has a receiving cavity, the receiving cavity has an opening, the monitoring assembly is arranged in the receiving cavity, the monitoring assembly comprises a monitor, the monitor is used to monitor the geometry of the rail, and the monitoring assembly is configured to be able to slide along the inner wall of the receiving cavity toward the outside of the opening so that the monitor extends out of the opening.

[0005] Furthermore, the rail geometry monitoring device also includes a push rod module and a return module. The push rod module is arranged between the base and the monitoring component. The push rod module is located on the side of the monitoring component facing the opening. The push rod module is used to apply a thrust toward the inside of the accommodating cavity to the monitoring component. The return module is arranged between the base and the monitoring component. The return module is used to apply a return force toward the outside of the accommodating cavity to the monitoring component.

[0006] Furthermore, the push rod module includes a screw member and a nut member, the nut member is fixed on the inner wall of the accommodating chamber, the screw member is threadedly matched with the nut member, the extension direction of the screw member intersects with the opening, and the screw member abuts against the side of the monitoring component facing the opening to apply a thrust to the monitoring component toward the inside of the accommodating chamber.

[0007] Furthermore, the screw rod member includes a screw rod body and a blocking portion fixed to the screw rod body, the blocking portion extends radially outward along the screw rod body, the blocking portion is located between the nut member and the opening, and the monitoring component abuts against the blocking portion on one side facing the opening.

[0008] Furthermore, an avoidance groove is formed on the inner wall of the accommodating cavity corresponding to the screw body, the screw body is located in the avoidance groove, and the blocking portion extends out of the avoidance groove to abut against the monitoring component.

[0009] Furthermore, the recovery module includes an elastic member, one end of the elastic member abuts against a side of the monitoring component away from the opening, and the other end abuts against an inner wall of the accommodating cavity away from the opening, and the elastic member is in an elastically compressed state.

[0010] Furthermore, the elastic member is a compression spring.

[0011] Furthermore, the monitoring component includes a substrate and a monitor mounted on the substrate, the outer contour of the substrate matches the inner contour of the accommodating cavity, and the substrate is configured to be able to slide along the inner wall of the accommodating cavity toward the outside of the opening so that the monitor extends out of the opening.

[0012] Furthermore, the monitor is movably connected to the substrate via a movable connection member.

[0013] Furthermore, the base includes a support column and a box body, the support column is used to be fixed on the ground, the box body is fixed on the upper end of the support column, and the box body has a accommodating cavity.

[0014] The rail geometry monitoring device provided in the embodiment of the present application allows the staff to extend the monitor out of the opening when they need to inspect the monitor. Compared with inspecting the monitor in the accommodating cavity, the staff has a larger operating space, and their work efficiency and quality will be higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a rail geometry monitoring device from a first perspective in an embodiment of the present application;

[0016] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 This is a schematic diagram of the structure in which a transparent plate cover is arranged on an opening in an embodiment of the present application;

[0018] Figure 4 It is a structural schematic diagram of the second viewing angle of the rail geometry monitoring device in the embodiment of the present application;

[0019] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0020] Figure 6 It is a schematic diagram of the structure in which the screw rod in the embodiment of the present application is inserted into the through hole.

[0021] Figure markings: 1-base; 11-accommodating chamber; 111-opening; 112-avoidance groove; 113-through hole; 12-support column; 13-box body; 2-monitoring component; 21-monitor; 22-base plate; 23-movable connecting piece; 3-transparent plate; 4-power supply line; 5-push rod module; 51-screw member; 511-screw body; 512-blocking part; 52-nut member; 53-handle; 6-reply module; 7-moving direction of monitoring component. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0023] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0024] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0025] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0026] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0027] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0028] When constructing overhead railway tracks, it is necessary to monitor the geometry of the rails. The geometry of the rails refers to the geometry, relative position and basic dimensions of each part of the rails, including the gauge, level, triangular pit, front high and back low, rail direction and rail bottom slope of the rails. The gauge refers to the distance between the inner side of the head of the left and right rails and the centerline of the track. The level refers to the level of the left and right rails, requiring the right two rails to be kept on the same horizontal plane in straight sections, and the outer rail superelevation should be uniform and smooth in curved sections. The triangular pit (also known as "twist") refers to a level of another nature in which the left rail is high first and then the right rail is high within a not too long distance. The front high and back low refers to the longitudinal smoothness of the track. The rail direction refers to the position of the centerline of the track should be consistent with its design position. The rail bottom slope refers to the inclination of the bottom surface of the rail to the top surface of the sleeper to meet the requirements of the wheel tread taper.

[0029] In the related art, monitors are generally used for monitoring. In order to prevent the monitoring effect of the monitor from being greatly affected by the harsh environment, the monitor is generally placed in a housing chamber for protection. However, in this way, the staff will be limited by the space of the housing chamber when repairing the monitor. The staff can only operate in a limited space, which greatly reduces the work efficiency of the staff's maintenance.

[0030] In view of this, please refer to Figure 1 and Figure 2 , an embodiment of the present application provides a device for monitoring the geometric shape and position of a rail. It includes a base 1 and a monitoring component 2. The base 1 has a accommodating cavity 11, and the accommodating cavity 11 has an opening 111; the monitoring component 2 is arranged in the accommodating cavity 11, and the monitoring component 2 includes a monitor 21, and the monitor 21 is used to monitor the geometric shape and position of the rail. The monitoring component 2 is configured to be able to slide along the inner wall of the accommodating cavity 11 toward the outside of the opening 111, so that the monitor 21 extends out of the opening 111. With such a structural form, when the staff needs to inspect the monitor 21, the monitor 21 can be extended out of the opening 111. Compared with inspecting the monitor 21 in the accommodating cavity 11, the staff has a larger operating space, and the work efficiency and work quality will also be higher.

[0031] The monitor 21 may be a combination of one or more of a displacement sensor, a speed sensor, and an inertial sensor. The monitor 21 is used to monitor the static geometry and dynamic geometry of the rail. Monitoring the static geometry means monitoring the state of the rail when no train is running, and monitoring the dynamic geometry means monitoring the state of the rail when train is running.

[0032] In some embodiments, please refer to Figure 1 and Figure 2 , the opening 111 is perpendicular to the moving direction 7 of the monitoring component. Such a structural form, on the one hand, facilitates the staff to place the monitoring component 2 into the accommodating cavity 11 during the process of assembling the base 1 and the monitoring component 2, and also facilitates the staff to take the monitoring component 2 out of the accommodating cavity 11 during the process of disassembling the base 1 and the monitoring component 2. On the other hand, it can make the monitor 21 extend out of and retract into the accommodating cavity 11 faster, which is conducive to improving work efficiency.

[0033] In some embodiments, please refer to Figure 3 The opening 111 is covered with a transparent plate 3 to seal the accommodating chamber 11, and the transparent plate 3 is detachably connected to the base 1. With such a structural form, the transparent plate 3 can seal the opening 111 on the one hand, and will not block light on the other hand, so it will not have a significant impact on the monitoring effect of the monitor 21. When the staff needs to inspect the monitor 21, they can first remove the transparent plate 3 from the base 1, and then extend it out of the opening 111 of the monitor 21.

[0034] On this basis, the transparent plate 3 can be implemented in a variety of ways, for example, the transparent plate 3 can be a transparent plastic plate or a glass plate, etc. In the embodiment of the present application, the transparent plate 3 is a tempered glass plate. The tempered glass plate has high strength and strong adaptability to harsh environments. In addition, the detachable connection between the transparent plate 3 and the base 1 can be implemented in a variety of ways, for example, it can be a screw connection, a bolt connection, a stud connection or a clamping connection, etc. In the embodiment of the present application, the transparent plate 3 is connected to the base 1 by screws. In some embodiments, the number of screws can be multiple, and the multiple screws are evenly arranged along the circumference of the opening 111. In some embodiments, a storage box is also formed on the base 1, and the storage box is used to store screws. With such a structural form, the staff can put the screws into the storage box after disassembling the transparent plate 3, which is conducive to preventing the screws from being lost.

[0035] For further information, please refer to Figure 1 and Figure 2The monitoring assembly 2 includes a substrate 22 and a monitor 21 mounted on the substrate 22. The outer contour of the substrate 22 matches the inner contour of the accommodating cavity 11. The substrate 22 is configured to be able to slide along the inner wall of the accommodating cavity 11 toward the outside of the opening 111, so that the monitor 21 extends out of the opening 111. In such a structural form, the substrate 22 is used to install the monitor 21 on the one hand, and is used to be slidably connected with the inner wall of the accommodating cavity 11 on the other hand, so that the monitor 21 can move relative to the inner wall of the accommodating cavity 11 to extend out of the opening 111. The sliding connection between the substrate 22 and the inner wall of the accommodating cavity 11 is achieved by matching the outer contour of the substrate 22 with the inner contour of the accommodating cavity 11, which has low processing and installation costs, and can make the connection between the substrate 22 and the accommodating cavity 11 more stable.

[0036] In some embodiments, please refer to Figure 1 and Figure 2 The substrate 22 is arranged in a direction parallel to the opening 111, and the monitor 21 is arranged on a side of the substrate 22 close to the opening 111. In this structural form, the substrate 22 will not block the opening 111 and the monitor 21, and will not affect the monitor 21's monitoring of the geometric shape of the rail.

[0037] In order to make the substrate 22 slide more smoothly along the inner wall of the accommodating cavity 11 toward the opening 111, in some embodiments, a sliding groove cooperating with the substrate 22 is formed on the inner wall of the accommodating cavity 11 along the sliding direction of the substrate 22. Of course, in some other embodiments, a protrusion may be formed on the inner wall of the accommodating cavity 11 along the sliding direction of the substrate 22, and a groove cooperating with the protrusion may be formed on the substrate 22.

[0038] In some embodiments, please refer to Figure 4 The monitor 21 is movably connected to the base plate 22 through the movable connecting member 23. With such a structural form, the staff can adjust the relative angle between the monitor 21 and the base plate 22 according to the relative position of the rail geometry monitoring device and the rail, so that the side wall of the accommodating cavity 11 will not block the monitor 21 to a large extent, thereby enabling the monitor 21 and the rail geometry to be monitored more accurately.

[0039] For further information, please refer to Figure 1 and Figure 2The base 1 includes a support column 12 and a box body 13. The support column 12 is used to be fixed on the ground. The box body 13 is fixed on the upper end of the support column 12. The box body 13 has a receiving chamber 11. With such a structural form, the rail geometry monitoring device can be directly arranged on the ground. The staff can flexibly adjust the position of the rail geometry monitoring device according to actual conditions such as terrain and weather factors, so that the monitoring of the rail geometry is less affected by environmental factors. On this basis, in some embodiments, the moving direction 7 of the monitoring component is horizontal. With such a structural form, the side wall of the receiving chamber 11 will not cause a large shielding to the monitor 21, thereby enabling the monitor 21 and the rail geometry to be monitored more accurately.

[0040] In some embodiments, please refer to Figure 1 and Figure 2 The support column 12 is provided with a power supply line 4, and the power supply line 4 is electrically connected to the monitor 21. In this structural form, the support column 12 can provide support for the power supply line 4.

[0041] For further information, please refer to Figure 4 and Figure 5 The rail geometry monitoring device further includes a push rod module 5 and a return module 6. The push rod module 5 is arranged between the base 1 and the monitoring assembly 2. The push rod module 5 is located on the side of the monitoring assembly 2 facing the opening 111. The push rod module 5 is used to apply a thrust toward the inside of the accommodating chamber 11 to the monitoring assembly 2. The return module 6 is arranged between the base 1 and the monitoring assembly 2. The return module 6 is used to apply a return force toward the outside of the accommodating chamber 11 to the monitoring assembly 2. With such a structural form, the cooperation of the push rod module 5 and the return module 6 can fix the monitoring assembly 2. On the one hand, the monitor 21 will not move during the inspection and maintenance of the monitor 21 by the staff, which is convenient for the staff to operate. On the other hand, the monitor 21 is not easily affected by the external environment and moves in the accommodating chamber 11 during the monitoring of the rail by the monitor 21, which is conducive to ensuring the accuracy of the monitoring results.

[0042] Specifically, when the staff needs to extend the monitor 21 out of the opening 111, the staff can retract the end of the push rod module 5 close to the monitoring component 2 toward the opening 111, and the monitoring component 2 will move toward the opening 111 due to the force of the recovery module 6, so that the monitor 21 will extend out of the opening 111. When the staff needs to retract the monitor 21 to the opening 111, the staff can extend the end of the push rod module 5 close to the monitoring component 2 toward the direction away from the opening 111 to push the monitoring component 2 to move into the accommodating chamber 11, so that the monitor 21 is retracted to the opening 111.

[0043] It should be noted that the side of the monitoring component 2 facing the opening 111 refers to the side of the monitoring component 2 close to the opening 111 in the moving direction 7 of the monitoring component.

[0044] For further information, please refer to Figure 4 and Figure 5 The push rod module 5 includes a screw member 51 and a nut member 52. The nut member 52 is fixed on the inner wall of the accommodating chamber 11. The screw member 51 is threadedly matched with the nut member 52. The extension direction of the screw member 51 intersects with the opening 111. The screw member 51 abuts against the side of the monitoring component 2 facing the opening 111 to apply a thrust toward the inside of the accommodating chamber 11 to the monitoring component 2. With such a structural form, when the screw member 51 rotates relative to the nut member 52, the screw member 51 will move in its extension direction. The extension direction of the screw member 51 intersects with the opening 111, that is, the screw member 51 will approach or move away from the opening 111 during the movement. The screw member 51 abuts against the side of the monitoring component 2 facing the opening 111, so that during the movement of the screw member 51, the monitor 21 will approach and move away from the opening 111 as the screw member 51 moves. In addition, due to the self-locking property of the threaded connection between the nut member 52 and the screw member 51, during the movement of the screw member 51, the screw member 51 can always generate a force on the monitoring component 2, that is, the screw member 51 can be regarded as always being in a state of equilibrium between the thrust of the push rod module 5 and the restoring force of the return module 6. On the one hand, this can make the monitoring component 2 slide along the inner wall of the accommodating chamber 11 more smoothly, which is convenient for the staff to operate. On the other hand, it can also enable the monitoring component 2 to be fixed at any position on its moving stroke, and the staff can flexibly select the extension and retraction distance of the monitoring component 2 according to the actual working conditions.

[0045] In some embodiments, please refer to Figure 4 and Figure 5 , the extension direction of the screw member 51 is the same as the moving direction 7 of the monitoring component. Such a structural form, that is, the moving direction of the screw member 51 is the same as the moving direction 7 of the monitoring component, can make the position of the force of the screw member 51 on the monitoring component 2 inconvenient during the movement process, thereby making the movement of the monitoring component 2 more stable.

[0046] Based on the fact that the monitoring assembly 2 is composed of the substrate 22 and the monitor 21, in some embodiments, please continue to refer to Figure 4 and Figure 5 , the extension direction of the screw member 51 is perpendicular to the base plate 22. Compared with the extension of the screw member 51 in other directions, when the moving distance of the screw member 51 is the same, the moving distance of the monitoring component 2 in such a structural form is larger, so that the monitoring component 2 can quickly extend out of the opening 111 or retract into the opening 111 as the screw member 51 moves, which is conducive to improving work efficiency.

[0047] In some embodiments, the screw member 51 is connected to the output end of the motor, and the motor is used to drive the screw member 51 to rotate. Of course, the staff can also drive the screw member 51 to rotate by hand cranking. In some other embodiments, a handle 53 is fixed to the screw member 51, and the extension direction of the handle 53 intersects with the extension direction of the screw member 51. With such a structural form, the staff can drive the screw member 51 to rotate by turning the handle 53. On this basis, please continue to refer to Figure 6 In some embodiments, a through hole 113 is formed on the side wall of the accommodating cavity 11 away from the opening 111 , the screw rod 51 passes through the through hole 113 , and the handle 53 is located at one end of the screw rod 51 away from the opening 111 .

[0048] For further information, please refer to Figure 4 and Figure 5 The screw member 51 includes a screw body 511 and a blocking portion 512 fixed to the screw body 511 . The blocking portion 512 extends radially outward along the screw body 511 . The blocking portion 512 is located between the nut member 52 and the opening 111 . The monitoring component 2 abuts against the blocking portion 512 on one side facing the opening 111 .

[0049] It should be noted that if the main body of the screw rod 51 is not provided with a blocking portion 512, the side of the monitoring component 2 facing the opening 111 will abut against the end of the screw rod 51. However, since the screw rod 51 is threadedly connected to the nut member 52, and the nut member 52 is fixed to the inner wall of the accommodating chamber 11, the monitoring component 2 may hit the nut member 52 during movement, and the nut member 52 will restrict the movement of the monitoring component 2, which affects the flexibility of the movement of the monitoring component 2. In addition, during the process of assembling or disassembling the rail geometry monitoring device, the nut member 52 may interfere with the monitoring component 2 in the process of placing the monitoring component 2 into the accommodating chamber 11 and in the process of taking the monitoring component 2 out of the accommodating chamber 11, which is inconvenient for the operation of the staff. By providing a blocking portion 512 that abuts against the monitoring component 2 and making the blocking portion between the nut member 52 and the opening 111, the monitoring component 2 will not interfere with the nut member 52.

[0050] In some embodiments, please refer to Figure 4 and Figure 5 The outer contour of the blocking portion 512 is circular. With such a structural form, during the rotation of the screw member 51, the contact area between the blocking portion 512 and the monitoring component 2 does not change, which makes the blocking portion 512 exert a relatively stable force on the monitoring component 2, and thus the movement of the monitoring component 2 is relatively stable, which is convenient for the operator to operate.

[0051] In some embodiments, an elastic pad is provided on one side of the blocking portion 512 abutting against the monitoring component 2. Such a structural form can reduce the wear of the monitoring component 2 during the rotation of the blocking portion 512 relative to the monitoring component 2. The elastic pad has many forms of implementation, for example, the elastic pad can be a sponge pad or a rubber pad.

[0052] In some embodiments, please refer to Figure 4 and Figure 5 An avoidance groove 112 is formed on the inner wall of the accommodating chamber 11 corresponding to the screw body 511 , the screw body 511 is located in the avoidance groove 112 , and the blocking portion 512 extends out of the avoidance groove 112 to abut against the monitoring component 2 .

[0053] It should be noted that an avoidance groove 112 is formed on the inner wall of the accommodating cavity 11 corresponding to the screw body 511 , which means that the avoidance groove 112 extends along the extension direction of the screw body 511 , so that the avoidance groove 112 can accommodate the screw body 511 .

[0054] It is understandable that the push rod module 5 is not limited to a screw and nut mechanism with a threaded connection, and the push rod module 5 can be any telescopic rod mechanism with a self-locking function. For example, in some other embodiments, the push rod module 5 can be a gear rack mechanism, specifically, the gear is rotatably connected to the base 1, the rack is meshed with the gear, the extension direction of the rack intersects with the opening 111, and the rack abuts against the side of the monitoring component 2 close to the opening 111. The push rod module 5 can also be a turbine worm mechanism, specifically, the turbine is rotatably connected to the base 1, the worm is meshed with the turbine, the extension direction of the worm intersects with the opening 111, and the worm abuts against the side of the monitoring component 2 close to the opening 111. The push rod module 5 can also be a linear motor, the linear motor is fixed on the base 1, and the output end of the linear motor abuts against the monitoring component 2.

[0055] For further information, please refer to Figure 4 and Figure 5 The recovery module 6 includes an elastic member, one end of which abuts against the side of the monitoring component 2 away from the opening 111, and the other end abuts against the inner wall of the accommodating chamber 11 away from the opening 111, and the elastic member is in an elastically compressed state. With such a structural form, the elastic member in a compressed state tends to stretch, and will generate a supporting force on the monitoring component 2 in a direction close to the opening 111.

[0056] It should be noted that the elastic member can be any component that can establish an elastic relationship between the monitoring component 2 and the base 1, such as a compression spring, a torsion spring, a bending spring, an annular spring, a disc spring, a spiral coil spring, a leaf spring, a spring sheet or a gas spring. In the embodiment of the present application, the elastic member is a compression spring.

[0057] In some other embodiments, the elastic member may also be in an elastically stretched state. Specifically, one end of the elastic member is connected to the side of the monitoring component 2 close to the opening 111, and the other end is connected to the inner wall of the accommodating chamber 11, and the connection between the elastic member and the inner wall of the accommodating chamber 11 is located on the side of the monitoring component 2 close to the opening 111. In such a structural form, the elastic member has a tendency to retract, and will generate a pulling force on the monitoring component 2 in the direction close to the opening 111.

[0058] The reply module 6 may not be an elastic member. For example, the reply module 6 may be two magnetic members. Specifically, in some embodiments, a magnetic member is located on the side of the monitoring component 2 away from the opening 111 and abuts against the inner wall of the accommodating chamber 11 away from the opening 111, and the same magnetic poles of the two magnetic members are opposite. In some other embodiments, a magnetic member is connected to the side of the monitoring component 2 close to the opening 111, and the other magnetic member is connected to the inner wall of the accommodating chamber 11, and the connection between the other magnetic member and the inner wall of the accommodating chamber 11 is located on the side of the monitoring component 2 close to the opening 111, and the opposite magnetic poles of the two magnetic members are opposite. In addition, in some other embodiments, the reply module 6 may not be provided, and the permanent force of the monitoring component 2 in the direction close to the opening 111 is gravity. In addition, in some other embodiments, the monitoring component 2 may not be subject to the permanent force in the direction close to the opening 111, and only the push rod module 5 is provided, that is, only the movement of the monitoring component 2 in the direction close to the opening 111 is restricted. When the monitor needs to be inspected, first move the side of the push rod module 5 close to the monitoring component 2 toward the opening 111, and then manually pull the monitoring component 2 to move it toward the opening 111. After the monitoring component 2 moves to a suitable position, the side of the push rod module 5 close to the monitoring component 2 is brought into contact with the monitoring component 2 to prevent it from further moving toward the opening 111 and causing it to fall off from the accommodating cavity 11.

[0059] In some other embodiments, the rail geometry monitoring device may not include the push rod module 5 and the return module 6, and the monitoring component 2 may be connected to one end of any telescopic rod mechanism with a self-locking function. Specifically, one end of the telescopic rod mechanism is connected to the base 1, and the other end is connected to the monitoring component 2. The telescopic direction of the telescopic rod mechanism intersects with the opening 111, and the telescopic rod mechanism can drive the monitoring component 2 to move toward the opening 111, so that the monitor 21 extends out of the opening 111. On this basis, in some embodiments, the telescopic rod mechanism is a ball screw mechanism, a gear rack mechanism, a worm gear mechanism, or a linear motor.

[0060] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rail geometry monitoring device, characterized in that: include: A base having a receiving cavity, wherein the receiving cavity has an opening; A monitoring component is arranged in the accommodating cavity, the monitoring component includes a monitor, the monitor is used to monitor the geometric shape and position of the rail, and the monitoring component is configured to be able to slide along the inner wall of the accommodating cavity toward the outside of the opening so that the monitor extends out of the opening; The rail geometry monitoring device further comprises a push rod module and a restoring module, wherein the push rod module is arranged between the base and the monitoring assembly, the push rod module is located on a side of the monitoring assembly facing the opening, the push rod module is used to apply a thrust toward the inside of the accommodating cavity to the monitoring assembly, and the restoring module is arranged between the base and the monitoring assembly, and the restoring module is used to apply a restoring force toward the outside of the accommodating cavity to the monitoring assembly; The push rod module includes a screw member and a nut member, the nut member is fixed on the inner wall of the accommodating cavity, the screw member is threadedly matched with the nut member, the extension direction of the screw member intersects with the opening, and the screw member abuts against a side of the monitoring component facing the opening to apply a thrust toward the inside of the accommodating cavity to the monitoring component; The screw rod member includes a blocking portion, the blocking portion is located between the nut member and the opening, the monitoring component abuts against the blocking portion on one side facing the opening, and the outer contour of the blocking portion is circular; The screw rod member further comprises a screw rod body, the blocking portion is fixedly connected to the screw rod body, and the blocking portion extends radially outward along the screw rod body; An avoidance groove is formed on the inner wall of the accommodating cavity corresponding to the screw body, the screw body is located in the avoidance groove, and the blocking portion extends out of the avoidance groove to abut against the monitoring component.

2. The rail geometry monitoring device according to claim 1, characterized in that: The recovery module comprises an elastic member, one end of which abuts against a side of the monitoring component away from the opening, and the other end abuts against an inner wall of the accommodating cavity away from the opening, and the elastic member is in an elastically compressed state.

3. The rail geometry monitoring device according to claim 2, characterized in that: The elastic member is a compression spring.

4. The rail geometry monitoring device according to claim 1, characterized in that: The monitoring component includes a substrate and the monitor mounted on the substrate, the outer contour of the substrate matches the inner contour of the accommodating cavity, and the substrate is configured to be able to slide along the inner wall of the accommodating cavity toward the outside of the opening so that the monitor extends out of the opening.

5. The rail geometry monitoring device according to claim 4, characterized in that: The monitor is movably connected to the substrate via a movable connection piece.

6. The rail geometry monitoring device according to claim 1, characterized in that: The base comprises a support column and a box body, wherein the support column is used to be fixed on the ground, the box body is fixed on the upper end of the support column, and the box body has the accommodating cavity.

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