Steel rail range finder

Abstract

The utility model discloses a steel rail range finder, which belongs to the technical field of range finders, and adopts the technical scheme that the steel rail range finder is characterized by comprising a casing, and a driving wheel and a meter counter which move along a steel rail are arranged on the casing; the motor is used for driving the driving wheel to rotate; the display is used for displaying measured data of the meter counter; and the remote controller is used for wirelessly controlling the motor to start and stop. The utility model has the beneficial effects that the steel rail range finder is mainly suitable for measuring steel rail lengths such as various line data, LKJ data, compensation capacitance step length and the like in railway engineering construction, has a remote control function, and is small in size, clear in display, accurate in data measurement and convenient to carry.

Description

Technical Field

[0001] The utility model belongs to the technical field of distance measuring instruments, in particular to a rail distance measuring instrument. Background Art

[0002] During railway construction, various line data, LKJ data, and compensation capacitor step lengths require rail length measurement. Traditionally, these measurements have been performed using hand-held tape measures or push-type measuring wheels. Using a hand-held tape measure requires constant marking and recording. This can lead to inaccurate measurements and significant errors when the tape is not straight or the track is curved. Using a push-type measuring wheel requires constant manual movement along the track, which is labor-intensive. Therefore, a rail distance meter is required. Utility Model Content

[0003] The purpose of the utility model is to provide a rail distance meter.

[0004] The utility model is realized by the following measures: a rail distance meter, characterized in that it comprises a housing, wherein the housing is provided with a driving wheel moving along the rail and a meter;

[0005] The utility model also includes a motor for driving the driving wheel to move, a display for displaying measurement data of the meter, and a remote controller for wirelessly controlling the start and stop of the motor.

[0006] Furthermore, a plurality of guide wheels with vertically arranged axes are symmetrically provided at the bottom of the casing, and the guide wheels are symmetrically provided on both sides of the rail head and slightly lower than the upper end surface of the rail head.

[0007] Furthermore, the vertical distance between the side wall of the guide wheel and the outer wall of the rail head is less than 5 mm. The guide wheel can prevent the rangefinder from falling off the rail.

[0008] Furthermore, the meter counter is arranged on the housing via a bracket, and the meter counter includes a meter wheel and an encoder;

[0009] The bracket includes a mounting base, a connecting rod is provided on the mounting base, a meter wheel is provided on one side of the outer end of the connecting rod, and an encoder linked to the meter wheel is provided on the other side. The display receives information from the encoder and displays data, generally connected via a data cable, and a reserved hole for the wire to pass through is provided on the casing.

[0010] Furthermore, a connecting hole is provided on the mounting seat, an insert rod is inserted into the connecting hole, and a bolt for fixing the insert rod is provided on the side wall.

[0011] Furthermore, a rectangular notch is opened on the side wall of the connecting hole, and the bolt passes through the rectangular notch and is fixed by a nut.

[0012] Furthermore, the connecting rod is rotatably mounted on the insertion rod and the insertion rod and the connecting rod are connected via a tension spring. A screw rod is coaxially mounted on the insertion rod, the connecting rod is sleeved on the screw rod and is limited by a nut or a pin is coaxially mounted on the insertion rod.

[0013] Furthermore, a limiting boss is fixedly provided on the insertion rod, and the limiting boss is located between the mounting seat and the connecting rod. The tension spring can be provided between the limiting boss and the connecting rod.

[0014] Furthermore, the driving wheel has one, and the driving wheel and the meter wheel center of the meter counter are on the same plane.

[0015] Furthermore, the motor is located on one side of the driving wheel, and an adjustable counterweight structure is provided on the side of the housing opposite to the motor.

[0016] The counterweight structure is a screw provided on the casing through a threaded connection; since the motor is too heavy, the upper surface of the casing needs to be adjusted to be level, and the length of the screw extending out of the casing can be adjusted to adapt it to the motor to ensure balance as much as possible.

[0017] Furthermore, the housing includes a bottom plate and side plates arranged around the bottom plate, the bottom plate is provided with an opening corresponding to the driving wheel, the lower part of the driving wheel extends out of the opening, and the motor is fixed on the side plates.

[0018] Furthermore, the remote control's main control circuit board is housed inside the housing. The receiving distance between the remote control's transmitter and the main control circuit board is typically 50 meters. While the remote control is designed for a range of 50 meters, this range can be shortened by the on-site terrain and environmental factors. During on-site measurements, personnel must move in sync with the rangefinder to prevent it from exceeding the remote control range.

[0019] Furthermore, a power supply for supplying power to the motor, encoder and display is provided in the housing.

[0020] Furthermore, the housing also includes a top plate that seals the surrounding side plates, and a display and a power switch for starting the rangefinder are installed on the top plate. The power switch includes an indicator light, which is generally yellow.

[0021] Furthermore, the display adopts a digital tube display, so that the numerical values ​​can be clearly displayed under sunlight.

[0022] Furthermore, four adjacent guide wheels are generally arranged in a rectangular pattern, with a spacing of 10 cm between two adjacent guide wheels, and the symmetry centers of the four guide wheels and the centers of the driving wheel and meter wheel are in the same plane.

[0023] Working principle:

[0024] To use the device, place it flat on the rail, ensuring it remains balanced. Press the power switch; the yellow power indicator lights up. Pull out the antenna of the remote control transmitter. Press the forward button on the transmitter. The motor drives the drive wheel, which in turn drives the device forward along the rail. The display shows the measurement data accurate to the millimeter. Press the stop button to stop the device. Press the reverse button on the remote control to reverse the device along the rail. The surveyor should follow the device to prevent it from exceeding the remote control range.

[0025] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are as follows: the rail distance meter is mainly suitable for measuring rail lengths such as various line data, LKJ data, and compensation capacitor step length in railway engineering construction. It has a remote control function, a small size, a clear display, accurate data measurement, and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, a brief introduction will be given below to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0028] Figure 2 In the embodiment of the utility model Figure 1 Schematic diagram of the structure at different angles;

[0029] Figure 3 This is a schematic diagram of the structure of the embodiment of the utility model without the emitter;

[0030] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic structural diagram of the casing in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the structure inside the casing in an embodiment of the present utility model;

[0033] Figure 7 It is a block diagram of the working principle of the rail distance meter in the embodiment of the utility model.

[0034] In the accompanying drawings, the components represented by each reference numeral are listed as follows: 1. Casing; 2. Meter wheel; 3. Bracket; 4. Encoder; 5. Tension spring; 6. Display; 7. Power switch; 8. Screw; 9. Driving wheel; 10. Guide wheel; 11. Motor; 12. Main control circuit board; 13. Power supply; 14. Transmitter; 15. Aluminum alloy support plate; 101. Reserved hole; 102. Top plate; 103. Bottom plate; 104. Upper extension plate; 105. Lower extension plate; 106. Opening; 301. Mounting seat; 302. Connecting rod; 303. Insert rod; 304. Boss; 305. Screw; 306. Rectangular notch. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0036] Example 1:

[0037] See also Figure 1-Figure 7 A rail distance meter is characterized by comprising a housing 1 on which a driving wheel 9 moving along the rail and a meter are provided;

[0038] The utility model also includes a motor 11 for driving the driving wheel 9 to rotate, a display 6 for displaying the measurement data of the meter, and a remote controller for wirelessly controlling the start and stop of the motor 11.

[0039] A plurality of guide wheels 10 with their axes arranged vertically are symmetrically provided at the bottom of the casing 1 . The guide wheels 10 are symmetrically provided on both sides of the rail head and are slightly lower than the upper end surface of the rail head.

[0040] The vertical distance between the side wall of the guide wheel 10 and the outer wall of the rail head is less than 5 mm.

[0041] The meter counter is mounted on the housing 1 via a bracket 3;

[0042] The bracket 3 includes a mounting base 301, on which a connecting rod 302 is provided. A meter wheel 2 is provided on one side of the outer end of the connecting rod 302, and an encoder 4 linked to the meter wheel 2 is provided on the other side. The display 6 receives information from the encoder 4 and displays the data, generally connected via a data cable. A reserved hole 101 for the wire to pass through is provided on the housing 1.

[0043] The mounting seat 301 is provided with a connecting hole, into which an inserting rod 303 is inserted, and a bolt for fixing the inserting rod 303 is provided on the side wall.

[0044] A rectangular notch 306 is opened in the side wall of the connection hole, and the bolt passes through the rectangular notch 306 and is fixed by a nut.

[0045] The connecting rod 302 is rotatably arranged on the insertion rod 303 and the insertion rod 303 and the connecting rod 302 are connected by a tension spring 5. A screw rod 305 is concentrically arranged on the insertion rod 303, and the connecting rod 302 is sleeved on the screw rod 305 and limited by a nut or a pin is concentrically arranged on the insertion rod 303.

[0046] A limiting boss 304 is fixedly provided on the insertion rod 303 . The limiting boss 304 is located between the mounting seat 301 and the connecting rod 302 . The tension spring 5 can be provided between the limiting boss 304 and the connecting rod 302 .

[0047] The driving wheel 9 has a center, and the centers of the driving wheel 9 and the meter wheel 2 are on the same plane.

[0048] The motor 11 is located on one side of the driving wheel 9 , and an adjustable counterweight structure is provided on the side of the housing 1 opposite to the motor 11 .

[0049] The counterweight structure is a screw 8 set on the casing 1 through a threaded connection; since the motor 11 is too heavy, the upper surface of the casing 1 needs to be adjusted to be level. The length of the screw 8 extending out of the casing can be adjusted to adapt it to the motor 11 to ensure balance as much as possible.

[0050] The housing 1 includes a bottom plate 103 and side plates arranged around the bottom plate 103. The bottom plate 103 is provided with an opening 106 corresponding to the driving wheel 9. The lower part of the driving wheel 9 extends out of the opening 106. The motor 11 is fixed to the side plates.

[0051] The main control circuit board 12 of the remote controller is arranged inside the housing 1 , and the receiving distance between the transmitter 14 of the remote controller and the main control circuit board 12 is generally selected to be 50m.

[0052] A power supply for supplying power to the motor 11 , the encoder 4 and the display 6 is provided in the housing 1 .

[0053] The housing 1 further comprises a top plate 102 which seals the surrounding side plates. A display 6 and a power switch 7 for starting the rangefinder are mounted on the top plate 102 . The motor 11 , the main control circuit of the remote controller, and the power supply 13 are all arranged inside the housing 1 .

[0054] Example 2:

[0055] See also Figure 1-Figure 7 On the basis of the first embodiment, the motor 11 is a forward and reverse motor, preferably a DC motor, for example, a 12V DC motor; the power supply adopts a battery or a lithium battery, preferably a lithium battery, for example, 12V, 2500mAh, and a power indicator light is provided;

[0056] The housing 1 is made of aluminum alloy, the housing width is generally less than 150 mm, and the housing height is generally less than 80 mm;

[0057] The outer diameter of the driving wheel 9 is generally less than 60 mm, and can be 50 mm. A polyurethane wheel is preferably used. When the rail distance meter is running on the rail, the running speed is calculated with reference to the normal walking speed of about 5 kilometers per hour. When a DC 12V, 500 rpm motor 11 is selected with a 50mm diameter polyurethane wheel, the formula is substituted: 0.05*3.14*500*60=4710 meters. By calculation, the speed is 4710 meters per hour, which meets the use requirements.

[0058] In order to ensure that the railway rail distance meter can be remotely controlled within a sufficient distance, a remote control distance of 50 meters, a working voltage of DC 12V, a maximum working current of 4A, a power of 12V40W, a forward and reverse function, and a one-to-one remote control main control circuit board 12 are selected.

[0059] Display 6 can use DS96-6 model. When wiring display 6, two terminals are connected to the positive and negative poles of the 12V power supply, one terminal is connected to COM, and one terminal is connected to 12V to power the meter wheel 2. The two terminals are connected to IN1 and IN2 for the forward and reverse rotation values ​​of the meter wheel 2.

[0060] The outer diameter of the meter wheel 2 is selected to be 6.2 cm. The specific size is determined according to actual conditions and is generally less than 10 cm.

[0061] The guide wheel 10 can be a bearing pulley, such as R-type plastic-coated BSR6-24.

[0062] The housing 1 is made of aluminum alloy and can be made of two parts, the lower part includes a rectangular ring side panel and a bottom plate 103, and the upper part includes a rectangular ring side panel and a top plate 102. The two rectangular ring side panels are connected to form the entire side panel. In addition, for easy installation, the lower end of the front side panel at the upper part is extended and fixedly connected to the front side panel at the lower part, such as Figure 5 The lower extension plate 105 is located at the upper end of the rear side plate of the lower portion and is fixedly connected to the upper rear side plate, such as Figure 5 The upper extension plate 104 in.

[0063] An aluminum alloy support plate 15 for mounting the power supply 13 and the main control circuit board 12 may be provided at the bottom of the housing 1 .

[0064] The guide wheel 10 is rotatably disposed below the bottom plate 103 .

[0065] In this embodiment, the specific dimensions of the rail distance meter are defined, so that the volume and weight of the operating device of the rail distance meter are greatly reduced compared with the prior art.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rail distance meter, characterized in that: The machine comprises a casing, wherein the casing is provided with a driving wheel moving along the rail and a meter; It also includes a motor for driving the driving wheel to rotate, a display for displaying the measurement data of the meter, and a remote controller for wirelessly controlling the start and stop of the motor; The housing includes a bottom plate and side plates arranged around the bottom plate, the bottom plate is provided with an opening corresponding to the driving wheel, the lower part of the driving wheel extends out of the opening, and the motor is fixed to the side plates; The motor is located on one side of the driving wheel, and an adjustable counterweight structure is provided on the side of the housing opposite to the motor; A plurality of guide wheels with vertically arranged axes are symmetrically arranged at the bottom of the casing, and the guide wheels are symmetrically arranged on both sides of the rail head and are lower than the upper end surface of the rail head.

2. The rail distance meter according to claim 1, characterized in that: The meter counter is arranged on the housing via a bracket; The bracket includes a mounting seat, a connecting rod is provided on the mounting seat, a meter wheel is provided on one side of the outer end of the connecting rod, and an encoder linked to the meter wheel is provided on the other side, and the display receives information from the encoder and displays data.

3. The rail distance meter according to claim 2, characterized in that: The mounting seat is provided with a connecting hole, an inserting rod is inserted into the connecting hole, and a bolt for fixing the inserting rod is provided on the side wall.

4. The rail distance meter according to claim 1, characterized in that: The driving wheel has one center, and the driving wheel and the meter wheel of the meter counter are located on the same plane.

5. The rail distance meter according to claim 3, characterized in that: A rectangular notch is opened on the side wall of the connecting hole, and the bolt passes through the rectangular notch and is fixed by a nut.

6. The rail distance meter according to claim 3, characterized in that: The connecting rod is rotatably arranged on the inserting rod, and the inserting rod and the connecting rod are connected via a tension spring.

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