A digital display track gauge with automatic switching function

Abstract

This invention discloses a digital track gauge with automatic switching function, comprising: a gauge body having an internal mounting cavity; a handle assembly including a handle shell and a handle, the handle shell being fixedly connected to the gauge body and the handle being rotatably connected to the handle shell; a fixed probe disposed at a first end of the gauge body; a movable probe assembly including a movable probe, the handle being kinetically connected to the movable probe; and a digital display module including a control box, a displacement sensor module, and a display module, the control box being electrically connected to the displacement sensor module for measuring the movement distance of the movable probe, and the display module being electrically connected to the control box, the display module having a first display interface and a second display interface. This invention can effectively improve measurement efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of track gauges, and in particular to a digital display track gauge with an automatic switching function. Background Art

[0002] Digital track gauge is mainly used to measure rail gauge, superelevation, inspection interval and back protection distance. The gauge and superelevation are measured in one display interface, and the inspection interval and back protection distance are measured in another display interface. At present, in order to measure the corresponding data, the existing digital track gauge on the market needs to manually switch to the corresponding display interface and then measure, which is not very convenient. At present, the displacement distance required for track gauge measurement is 1410~1470mm, that is, the effective displacement range of the active probe is 1470-1410=60mm. In actual use, the standard track gauge is 1435mm (±8mm), the inspection interval is 1391mm (+3mm), and the back protection distance is 1348mm (-2mm). When measuring correctly, the track gauge refers to the distance between the two outer tangent surfaces of the movable probe and the fixed probe, the inspection interval refers to the distance between the outer tangent surface of the movable probe and the inner tangent surface of the fixed probe, and the back protection distance refers to the distance between the inner tangent surface of the movable probe and the inner tangent surface of the fixed probe. At present, the diameters of the two probes are both 35mm. Compared with the standard track gauge, the inspection interval reflects that the displacement distance from the movable probe to the fixed probe end is reduced by 1435-1391-35=9mm, and the back protection distance reflects that the displacement distance from the movable probe to the fixed probe end is reduced by 1435-1348-35-35=17mm. Therefore, the displacement distance change conditions of the standard track gauge and the inspection interval can be judged to automatically switch the display interface, but this 9mm displacement interval is less than the sum of the errors of the standard track gauge and the inspection interval, which is 11mm. Therefore, a value in this interval cannot be used as a condition for automatically switching the display interface without making changes. Summary of the invention

[0003] The invention provides a digital display track gauge with an automatic switching function, which can effectively improve measurement efficiency.

[0004] In order to solve the above technical problems, the present invention provides a digital display track gauge with automatic switching function, which is characterized by comprising:

[0005] A ruler body, wherein the ruler body has a mounting cavity therein;

[0006] A handle assembly, the handle assembly comprising a handle shell and a handle, the handle shell is fixedly connected to the ruler body, and the handle is rotatably connected to the handle shell;

[0007] A fixed probe, the fixed probe being arranged at the first end of the ruler body;

[0008] A movable probe assembly, the movable probe assembly is arranged at the second end of the ruler body, the movable probe assembly includes a movable probe, the handle is in transmission connection with the movable probe, and the handle can drive the movable probe to move relative to the ruler body to the first measurement interval and the second measurement interval;

[0009] A digital display module, the digital display module includes a control box, a displacement sensor module and a display module, the control box is electrically connected to the displacement sensor module, the displacement sensor module is used to measure the moving distance of the movable probe, the display module is electrically connected to the control box, the display module has a first display interface and a second display interface, when the movable probe is located in the first measuring interval, the display module displays the first display interface, when the movable probe is located in the second measuring interval, the display module displays the second display interface.

[0010] As a preferred embodiment of the above technical solution, when the movable probe is at the initial position, the distance between the movable probe and the fixed probe is L1, and the moving distance of the movable probe is L Δ , when L1-L Δ >X1, the movable probe is located in the first measuring interval, and the display module displays the first display interface; when L1-L Δ <X2, the movable probe is located in the second measuring interval, and the display module displays the second display interface.

[0011] As a preferred embodiment of the above technical solution, the first display interface is used to display the measurement data of the rail gauge, and the second display interface is used to display the measurement data of the rail inspection interval and the back guard distance.

[0012] As a preferred embodiment of the above technical solution, the thickness of the movable probe in the length direction of the ruler body is 22-26 mm, and the thickness of the fixed probe in the length direction of the ruler body corresponds to the thickness of the movable probe in the length direction of the ruler body.

[0013] As a preferred embodiment of the above technical solution, the thickness of the movable probe in the length direction of the ruler body is 24 mm.

[0014] As a preferred embodiment of the above technical solution, the handle includes a first arm and a second arm, a hinge portion is provided between the first arm and the second arm, the hinge portion is hinged to the handle shell, the first arm extends out of the handle shell, the second arm is located in an active cavity inside the handle shell, and a hook portion is provided at the end of the second arm, and the hook portion is located in the installation cavity.

[0015] As a preferred embodiment of the above technical solution, the distance from the hook portion to the hinge portion is 120-130 mm.

[0016] As a preferred embodiment of the above technical solution, the displacement sensor module includes a displacement sensor body and a telescopic rod, the telescopic rod is inserted into the displacement sensor body, one end of the telescopic rod is connected to the hook part through a pull rod, and the other end of the telescopic rod is connected to the dynamic head positioning seat.

[0017] As a preferred embodiment of the above technical solution, an elastic reset member is provided between the telescopic rod and the displacement sensor body.

[0018] As a preferred embodiment of the above technical solution, the digital display module also includes an inclination sensor, the inclination sensor is electrically connected to the control box, and the first display interface is also used to display measurement data of rail superelevation.

[0019] The present invention provides a digital display track gauge with an automatic switching function, comprising: a ruler body, a handle assembly, a fixed probe, a movable probe assembly and a digital display module. When measuring, the track gauge is placed on a rail, so that the fixed probe is attached to one of the rails, and the movable head positioning seat is driven by the handle to slide on the movable head slide rail, thereby driving the movable probe to slide, and finally the movable probe is attached to the other rail. The moving distance of the movable probe can be obtained by the displacement sensor module. When the movable probe is located in a first measuring interval, the display module displays a first display interface, and when the movable probe is located in a second measuring interval, the display module displays a second display interface, and displays the data of the calculated rail gauge or the inspection interval or the back protection distance. By automatically switching the display interface, the measurement efficiency can be effectively improved.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a track gauge in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a track gauge in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0024] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0025] In the figure: 1. ruler body; 2. handle assembly; 3. fixed probe; 4. movable probe assembly; 5. digital display module; 101. installation cavity; 201. handle shell; 202. handle; 203. first arm; 204. second arm; 205. hinged part; 206. hook part; 401. movable head positioning seat; 402. movable probe; 501. control box; 502. displacement sensor module; 503. displacement sensor body; 504. telescopic rod; 505. elastic reset member; 506. display; 507. inclination sensor. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 4 The embodiment of the present invention provides a digital track gauge with automatic switching function, which is characterized by comprising:

[0028] A ruler body 1, wherein the ruler body 1 has a mounting cavity 101 therein;

[0029] A handle assembly 2, the handle assembly 2 comprising a handle shell 201 and a handle 202, the handle shell 201 being fixedly connected to the ruler body 1, and the handle 202 being rotatably connected to the handle shell 201;

[0030] A fixed probe 3, wherein the fixed probe 3 is arranged at a first end of the ruler body 1;

[0031] A movable probe assembly 4, wherein the movable probe assembly 4 is arranged at the second end of the ruler body 1, and the movable probe assembly 4 includes a movable probe, the handle 202 is in transmission connection with the movable probe 402, and the handle 202 can drive the movable probe 402 to move relative to the ruler body 1 to the first measurement interval and the second measurement interval;

[0032] A digital display module 5, the digital display module 5 includes a control box 501, a displacement sensor module 502 and a display module, the control box 501 is electrically connected to the displacement sensor module 502, the displacement sensor module 502 is used to measure the moving distance of the movable probe 402, the display module is electrically connected to the control box 501, the display module has a first display interface and a second display interface, when the movable probe 402 is located in the first measuring interval, the display module displays the first display interface, when the movable probe 402 is located in the second measuring interval, the display module displays the second display interface.

[0033] The embodiment of the present invention provides a digital display track gauge with an automatic switching function, comprising: a ruler body 1, a handle assembly 2, a fixed probe 3, a movable probe assembly 4 and a digital display module 5. When measuring, the track gauge is placed on a rail, so that the fixed probe 3 is attached to one of the rails, and the movable head positioning seat 401 is driven by the handle 202 to slide on the movable head slide rail, thereby driving the movable probe 402 to slide, and finally the movable probe 402 is attached to the other rail. The moving distance of the movable probe 402 can be obtained by the displacement sensor module 502. When the movable probe 402 is located in the first measuring interval, the display module displays a first display interface, and when the movable probe 402 is located in the second measuring interval, the display module displays a second display interface, and displays the data of the calculated rail gauge or the inspection interval or the back protection distance. By automatically switching the display interface, the measurement efficiency can be effectively improved.

[0034] In a further embodiment of the present invention, when the movable probe 402 is at the initial position, the distance between the movable probe 402 and the fixed probe 3 is L1, and the moving distance of the movable probe 402 is L Δ , when L1-L Δ >X1, the movable probe 402 is located in the first measuring interval, and the display module displays the first display interface; when L1-L Δ <X2, the movable probe 402 is located in the second measuring interval, and the display module displays the second display interface.

[0035] In this embodiment, during operation, when the distance between the movable probe 402 and the fixed probe 3 is greater than X1, the movable probe 402 is located in the first measuring interval, and the display module displays the first display interface; when the distance between the movable probe 402 and the fixed probe 3 is less than X2, the movable probe 402 is located in the second measuring interval, and the display module displays the second display interface; when the distance between the movable probe 402 and the fixed probe 3 is between X1 and X2, the movable probe 402 is located in the buffer zone; when the movable probe 402 moves from the first measuring interval or the second measuring interval to the buffer zone, the interface displayed by the display module remains unchanged; specifically, when the movable probe 402 moves from the first measuring interval to the buffer zone, the display module displays the first display interface; when the movable probe 402 moves from the second measuring interval to the buffer zone, the display module displays the second display interface; in this way, automatic switching of the display interface is achieved, effectively improving the measurement efficiency.

[0036] In a further implementable embodiment of the present invention, the first display interface is used to display the measurement data of the rail gauge, and the second display interface is used to display the measurement data of the rail inspection interval and the back guard distance.

[0037] In this embodiment, the track gauge refers to the distance between the two outer surfaces of the movable probe and the fixed probe 3, the reference interval refers to the distance between the outer surface of the movable probe 402 and the inner surface of the fixed probe 3, and the back protection distance refers to the distance between the inner surface of the movable probe 402 and the inner surface of the fixed probe 3. Different display interfaces are distinguished according to the different reference surfaces of the fixed probe 3 selected during measurement, which is more in line with the actual operating habits of the operator, thereby further improving the measurement efficiency.

[0038] In a further feasible embodiment of the present invention, the thickness of the movable probe 402 in the length direction of the ruler body 1 is 22 to 26 mm, and the thickness of the fixed probe 3 in the length direction of the ruler body 1 corresponds to the thickness of the movable probe 402 in the length direction of the ruler body 1 .

[0039] In this embodiment, the thickness of the movable probe 402 in the length direction of the ruler body 1 is 22 to 26 mm, and the thickness of the fixed probe 3 in the length direction of the ruler body 1 is the same as the thickness of the movable probe 402 in the length direction of the ruler body 1, and both are smaller than the diameter of a conventional probe. The displacement range of the movable probe 402 is increased. For example, the thickness of the movable probe 402 in the length direction of the ruler body 1 is set to 26 mm. Then, relative to the standard track gauge, the reference interval reflects that the displacement distance of the movable probe to the fixed probe 3 end is reduced by 1435-1391-26=18 mm, and the displacement range is increased. This 18 mm displacement range is greater than the sum of the errors of the standard track gauge and the reference interval, which is 11 mm. The standard track gauge is 1435mm, the allowable error of the standard track gauge is ±8mm, the inspection interval is 1391mm, the allowable error of the inspection interval is +3mm, the value of X1 should be less than or equal to 1435-8=1427, the value of X2 should be greater than or equal to 1391+3+26=1420, and X1>X2. In summary, the range of X1 values ​​is (1420mm, 1427mm], the range of X2 values ​​is [1420mm, 1427mm), and X1>X2. When the distance between the movable probe 402 and the fixed probe 3 is When the distance between the movable probe 402 and the fixed probe 3 is greater than X1, the movable probe 402 is located in the first measuring interval, and the display module displays the first display interface. When the distance between the movable probe 402 and the fixed probe 3 is less than X2, the movable probe 402 is located in the second measuring interval, and the display module displays the second display interface. In addition, the thickness of the movable probe 402 and the fixed probe 3 cannot be too small, otherwise the structural strength cannot be ensured, affecting the service life. Therefore, the thickness of the movable probe 402 in the length direction of the ruler body 1 is set to 22-26 mm.

[0040] In a further feasible embodiment of the present invention, the thickness of the movable probe 402 in the length direction of the ruler body 1 is 24 mm.

[0041] In this embodiment, the thickness of the movable probe 402 in the length direction of the ruler 1 is set to 24mm, the standard track gauge is 1435mm, the allowable error of the standard track gauge is ±8mm, the inspection interval is 1391mm, the allowable error of the inspection interval is +3mm, the value of X1 should be less than or equal to 1435-8=1427, the value of X2 should be greater than or equal to 1391+3+24=1418, and X1>X2. In summary, the range of X1 is (1418mm, 1427mm ], the value range of X2 is [1418mm, 1427mm), and X1>X2, when the distance between the movable probe 402 and the fixed probe 3 is greater than X1, the movable probe 402 is located in the first measuring interval, and the display module displays the first display interface; when the distance between the movable probe 402 and the fixed probe 3 is less than X2, the movable probe 402 is located in the second measuring interval, and the display module displays the second display interface; in this way, automatic switching is achieved, which effectively improves the measurement efficiency.

[0042] In a further implementable embodiment of the present embodiment, the handle 202 includes a first arm 203 and a second arm 204, and a hinge portion 205 is provided between the first arm 203 and the second arm 204, and the hinge portion 205 is hinged to the handle shell 201, and the first arm 203 extends out of the outside of the handle shell 201, and the second arm 204 is located in the movable cavity inside the handle shell 201, and a hook portion 206 is provided at the end of the second arm 204, and the hook portion 206 is located in the installation cavity 101.

[0043] In this embodiment, the handle 202 is connected to the dynamic head positioning seat 401 through the hook portion 206. The handle 202 includes a first arm 203 and a second arm 204. When in use, the operator pulls the first arm 203 to make the handle 202 rotate around the hinge portion 205, so that the hook portion 206 of the second arm 204 moves in the installation cavity 101, thereby driving the dynamic head positioning seat 401 to move, and then adjusting the position of the movable probe 402; the handle 202 has a simple structure and is easy to operate, thereby effectively improving the convenience of use.

[0044] In a further implementable embodiment of the present invention, the distance from the hook portion 206 to the hinge portion 205 is 120-130 mm.

[0045] In this embodiment, the handle 202 includes a first arm 203 and a second arm 204. The distance from the hook portion 206206 to the hinge portion 205 is 120 to 130 mm. The length of the second arm 204 in this embodiment is longer than the length of the second arm 204 of a conventional handle. By increasing the length of the second arm 204, the operator pulls the first arm 203, and the handle 202 rotates at the same rotation angle. The hook portion 206 can move a longer distance, thereby effectively cooperating with the increased displacement range of the movable probe 402, further improving the operational convenience.

[0046] In a further feasible embodiment of the present embodiment, the displacement sensor module 502 includes a displacement sensor body 503 and a telescopic rod 504, wherein the telescopic rod 504 is inserted into the displacement sensor body 503, one end of the telescopic rod 504 is connected to the hook portion 206 via a pull rod, and the other end of the telescopic rod 504 is connected to the dynamic head positioning seat 401.

[0047] In this embodiment, the displacement sensor module 502 includes a displacement sensor body 503 and a telescopic rod 504. When in use, the operator pulls the handle 202, and the handle 202 causes the telescopic rod 504 to move through the pull rod, and finally drives the dynamic head positioning seat 401 and the movable probe 402 to move. The displacement sensor body 503 senses the displacement change of the telescopic rod 504, accurately measures the displacement information of the movable probe 402, and transmits it to the control box 501 for data processing, thereby ensuring the accuracy of the measurement data and improving the convenience of operation.

[0048] In a further implementable embodiment of the present invention, an elastic reset member 505 is provided between the telescopic rod 504 and the displacement sensor body 503 .

[0049] In this embodiment, an elastic reset member 505 is provided between the telescopic rod 504 and the displacement sensor body 503. Specifically, the elastic reset member 505 is a reset spring. The first end of the telescopic rod 504 is connected to the pull rod, and the second end of the telescopic rod 504 is connected to the dynamic head positioning seat 401. The reset spring is sleeved on the telescopic rod 504, one end of the reset spring is connected to the displacement sensor body 503, and the other end of the reset spring is connected to the second end of the telescopic rod 504. During measurement, the operator pulls the handle 202 to move the movable probe 402 toward the direction close to the fixed probe 3. At this time, the reset spring is compressed due to the displacement of the telescopic rod 504. When reaching the appropriate position, the operator releases the handle 202, and the reset spring returns to its original state, driving the telescopic rod 504, the dynamic head positioning seat 401 and the movable probe 402 to move in the direction away from the fixed probe 3. By providing the elastic reset member 505, it can be ensured that the movable probe 402 can reset itself during the measurement process, thereby improving the convenience of operation.

[0050] In a further implementable embodiment of the present invention, the digital display module 5 further includes an inclination sensor 507 , and the inclination sensor 507 is electrically connected to the control box 501 . The first display interface is also used to display the measurement data of the superelevation of the rail.

[0051] In this embodiment, in order to ensure the smooth operation of the train, it should be ensured that the tops of the two rails of the rail are located on the same horizontal plane. The inclination sensor 507 is used to measure the height difference between the two rails of the rail. When measuring, the ruler 1 is placed on the tops of the two rails of the rail. The inclination of the working surface formed by the outer rail and the inner rail of the curve can be measured by the inclination sensor 507, so as to calculate the superelevation value. By setting the inclination sensor 507, the operator can read multiple values ​​in one operation, further improving the convenience of operation; the control box 501 includes at least a display 506, and the display 506 is used to display the first display interface and the second display interface, so that the operator can monitor the measurement results in real time and improve the convenience of use.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A digital gauge ruler with automatic switching function, characterized in that: include: A ruler body, wherein the ruler body has a mounting cavity therein; A handle assembly, the handle assembly comprising a handle shell and a handle, the handle shell is fixedly connected to the ruler body, and the handle is rotatably connected to the handle shell; A fixed probe, the fixed probe being arranged at the first end of the ruler body; A movable probe assembly, the movable probe assembly is arranged at the second end of the ruler body, the movable probe assembly includes a movable probe, the handle is in transmission connection with the movable probe, and the handle can drive the movable probe to move relative to the ruler body to the first measurement interval and the second measurement interval; A digital display module, the digital display module includes a control box, a displacement sensor module and a display module, the control box is electrically connected to the displacement sensor module, the displacement sensor module is used to measure the moving distance of the movable probe, the display module is electrically connected to the control box, the display module has a first display interface and a second display interface, when the movable probe is located in the first measuring interval, the display module displays the first display interface, when the movable probe is located in the second measuring interval, the display module displays the second display interface.

2. The digital track gauge according to claim 1, characterized in that: When the movable probe is at the initial position, the distance between the movable probe and the fixed probe is L1, and the moving distance of the movable probe is L Δ , when L1-L Δ >X1, the movable probe is located in the first measuring interval, and the display module displays the first display interface; when L1-L Δ <X2, the movable probe is located in the second measuring interval, and the display module displays the second display interface.

3. The digital track gauge according to claim 2, characterized in that: The first display interface is used to display the measurement data of the rail gauge, and the second display interface is used to display the measurement data of the rail inspection interval and the back guard distance.

4. The digital track gauge according to claim 3, characterized in that: The thickness of the movable probe in the length direction of the ruler body is 22-26 mm, and the thickness of the fixed probe in the length direction of the ruler body corresponds to the thickness of the movable probe in the length direction of the ruler body.

5. The digital track gauge according to claim 4, characterized in that: The thickness of the movable measuring head in the length direction of the ruler body is 24 mm.

6. The digital track gauge according to claim 1, characterized in that: The handle includes a first arm and a second arm, wherein a hinge portion is provided between the first arm and the second arm, and the hinge portion is hinged to the handle shell. The first arm extends out of the handle shell, and the second arm is located in an active cavity inside the handle shell. A hook portion is provided at the end of the second arm, and the hook portion is located in the installation cavity.

7. The digital track gauge according to claim 6, characterized in that: The distance from the hook portion to the hinge portion is 120-130 mm.

8. The digital track gauge according to claim 1, characterized in that: The displacement sensor module comprises a displacement sensor body and a telescopic rod, wherein the telescopic rod is inserted into the displacement sensor body, one end of the telescopic rod is connected to the hook portion via a pull rod, and the other end of the telescopic rod is connected to the dynamic head positioning seat.

9. The digital track gauge according to claim 8, characterized in that: An elastic reset member is arranged between the telescopic rod and the displacement sensor body.

10. The digital track gauge according to claim 9, characterized in that: The digital display module also includes an inclination sensor, which is electrically connected to the control box. The first display interface is also used to display measurement data of rail superelevation.

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