Novel embedded locking amount measuring tool

Abstract

A novel embedded locking amount measuring tool comprises a vernier caliper, the vernier caliper comprises a main ruler and an auxiliary ruler, the bottom of one end of the main ruler is provided with a front claw extension rod, and the back of the bottom end of the front claw extension rod is provided with a front claw vertically connected with the front claw extension rod. A rear claw extension rod matched with the front claw extension rod is arranged at the bottom of one end, close to the front claw extension rod, of the auxiliary ruler, a rear claw vertically connected with the rear claw extension rod is arranged at the back of the bottom end of the rear claw extension rod, and the rear claw is longer than the front claw; the lock hook is knocked to a proper central position and placed in the measuring tool, the front claw hooks the part, needing to be measured, of the hook head, then the rear claw is pushed, the part, needing to be measured, of the boss of the locking rod is clamped, the reading is displayed, the caliper is taken out, and the reading is carried out. According to the utility model, the operation time can be shortened, and the measurement error is reduced to a great extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway turnout locking amount parameter measurement, and in particular relates to a novel embedded locking amount measuring tool. Background Art

[0002] Currently, operators in the subway and railway industries use traditional steel rulers to measure turnout locking data. This method is inefficient, slow, and inconvenient, with non-intuitive readings and large measurement errors. In difficult areas, operators must force the steel ruler into the measurement space, which consumes a lot of energy and wastes a lot of time. To ensure more accurate measurement data within limited time, operators must perform multiple measurements and calculate the average value to reduce or even eliminate measurement errors. This requires rapid measurement, which wastes a lot of time. Summary of the Invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a new type of interlocking locking amount measuring tool, which can be fully interlocked by engaging the lower part of the hook head with the front claw and engaging the upper slope of the locking rod with the rear claw. The operation is convenient and the error is reduced. The moving gate displays the measurement data, and the locking amount parameters of the switch can be measured quickly and accurately. It solves the problem that the existing measuring tools cannot meet the requirements of fast and accurate on-site measurement of the locking amount, improves the maintenance accuracy, improves the maintenance efficiency, and effectively avoids the possibility of equipment failure due to errors.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A new type of embedded locking amount measuring tool includes a vernier caliper, which includes a main scale 1 and a secondary scale 2. A front claw extension rod 11 is provided at the bottom of one end of the main scale 1, and a front claw 12 vertically connected to the front claw extension rod 11 is provided on the back of the bottom end of the front claw extension rod 11. A rear claw extension rod 21 that cooperates with the front claw extension rod 11 is provided at the bottom of one end of the secondary scale 2 close to the front claw extension rod 11, and a rear claw 22 vertically connected to the rear claw extension rod 21 is provided on the back of the bottom end of the rear claw extension rod 21.

[0006] The front claw 12 and the rear claw 22 are both triangular prism structures, and the side surfaces of the triangular prism structures are arranged facing each other and parallel to each other. One side surface of the front claw 12 is arranged downward, and one side surface of the rear claw 22 is arranged upward. The cross-sections of the front claw 12 and the rear claw 22 are both equilateral triangles.

[0007] The length of the rear claw 22 is greater than that of the front claw 12 .

[0008] The length of the front claw 12 is 1-2 cm, and the length of the rear claw 22 is 2-4 cm.

[0009] The front claw 12 and the rear claw 22 are both made of 3Cr13 steel.

[0010] The side length of the equilateral triangle is 1 cm.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The utility model hooks and embeds the front claw 12 and the rear claw 22 of the triangular prism on the vernier caliper, the front claw 12 is engaged with the lower part of the hook head, and the rear claw 22 is engaged with the upper slope of the locking rod, which can effectively solve the time wasted in ruler measurement; the measurement method is more concise and direct; it will be more obvious when encountering emergency repairs that will save a lot of time; it has the innovation of being portable and compact.

[0013] 2. The utility model is provided with a front claw 12 connected vertically to the bottom end of the back of the front claw extension rod 11, and a rear claw 22 connected vertically to the back of the lower end of the rear claw extension rod 21. The front claw 12 and the rear claw 22 are both triangular prism structures, and the cross-sections of the front claw 12 and the rear claw 22 are both equilateral triangles. The front claw 12 is embedded in the lower part of the hook head, and the rear claw 22 is embedded in the upper slope of the locking rod. The vernier caliper is hooked and has a special embeddable angle hook, which can reduce measurement errors. In traditional measurements, it is necessary to use a ruler to measure and subtract the measured value from 70MM (the total length of the bottom surface of the hook head). After 8 measurements, the specific locking amount value of a set of switches can be obtained. There is an error in the measurement, and subtracting the measured value from 70MM will produce another error. However, when using the embedded tool of the utility model, because all measuring parts are embedded, the measuring range is also achieved to two decimal places, which greatly reduces the error of data measurement.

[0014] 3. Currently, there are no similar tools to the present invention in the rail transit industry. The embedded locking amount measuring tool of the present invention is low in cost, has good corrosion and rust resistance, simple structure, and low cost. It can be promoted and applied, and can be effectively applied to railways, subways, various construction units and units that need to solve such problems. The promotion cost-effectiveness is extremely high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front structural schematic diagram of the present utility model.

[0016] Figure 2 It is a schematic diagram of the back structure of the utility model.

[0017] Figure 3 It is a three-dimensional schematic diagram of the back structure of the utility model.

[0018] FIG4 is a diagram showing the counting principle of the caliper of the present invention; FIG4(a) is a top view of the fixed and movable grids of the caliper, and FIG4(b) is a diagram showing the strip electrode group of the grating sensor.

[0019] Among them, 1. Main ruler; 11. Front claw extension rod; 12. Front claw; 2. Secondary ruler; 21. Rear claw extension rod; 22. Rear claw; 3. Fixed grid; 4. Moving grid; 5. First button; 6. Second button; 7. Knob screw; 8. Third button; 9. Electronic grid vernier caliper body. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings, which is intended to explain rather than limit the present invention. Any non-essential additions or substitutions made by those skilled in the art based on the technical features of the present invention fall within the scope of protection of the present invention.

[0021] See also Figure 1 A new type of embedded locking amount measuring tool includes a vernier caliper, which includes a main scale 1 and a secondary scale 2. A front claw extension rod 11 is provided at the bottom of one end of the main scale 1, and a front claw 12 vertically connected to the front claw extension rod 11 is provided on the back of the bottom end of the front claw extension rod 11. A rear claw extension rod 21 that cooperates with the front claw extension rod 11 is provided at the bottom of one end of the secondary scale 2 close to the front claw extension rod 11, and a rear claw 22 vertically connected to the rear claw extension rod 21 is provided on the back of the bottom end of the rear claw extension rod 21, and the length of the rear claw 22 is greater than the front claw 12.

[0022] The front end of the electronic grid vernier caliper body 9 is provided with a front claw 12 for engaging and clamping the lower part of the hook head, and a rear claw 22 for engaging and clamping the upper slope of the locking rod. The front and rear claws are precisely molded and the engagement is seamless. The front claw 12 is connected to the electronic grid vernier caliper body 9 through the front claw extension rod 11, and the rear claw 22 is connected to the electronic grid vernier caliper body 9 through the rear claw extension rod 21.

[0023] The connection parts of the front claw extension rod 11 and the front claw 12 as well as the rear claw extension rod 21 and the rear claw 22 are uniformly subjected to a roughening and riveting process, and then reinforced by welding to enhance the connection tightness between the claw head and the extension rod.

[0024] The front claws 12 and rear claws 22 are both triangular prisms, with their sides facing each other and parallel to each other. One side of the front claw 12 faces downward, while one side of the rear claw 22 faces upward. The cross-sections of the front and rear claws 12 and 22 are both equilateral triangles. The front claw 12 fits against the inner chamfer of the shackle at a 60° angle, while the rear claw 22 fits against the chamfered surface of the locking lever's boss at a 60° angle, ensuring a perfect fit during measurement.

[0025] The front claws 12 and the rear claws 22 are both made of 3Cr13 steel, which has low production cost, good corrosion resistance and rust resistance, high hardness, and is easy to promote.

[0026] The length of the front claw 12 is 1-2 cm, and the length of the rear claw 22 is 2-4 cm.

[0027] The side length of the equilateral triangle is 1 cm.

[0028] At the same time, the electronic grid caliper is modified to change the measurement of the same plane to the measurement in the vertical 90° direction, and a digital intuitive reading is added to the electronic grid vernier caliper body 9 to facilitate direct reading. The knob card thread 7 is used to measure the value and then take out the measuring ruler for accurate reading. The first button 5 is the electronic measuring ruler power button. At the same time, when the power is turned off, you can directly pull the measuring ruler to directly turn on the measurement reading mark; the second button 6 is the zero button. To ensure the accuracy of each measurement, at the beginning of each measurement, after the front claw 12 and the rear claw 22 of the caliper are attached, press the zero button to adjust the reading to 0, and then start measuring; the third button 8 is the measurement unit conversion button (inch / mm), which is convenient for recording data to display different units.

[0029] The electronic grid vernier caliper uses a grating sensor inside the scale body 9. The entire sensor consists of two groups of strip electrodes placed opposite each other, one group is the moving grid 4, and the other group is the fixed grid 3. The moving grid 4 and the fixed grid 3 are electrostatically coupled (the pulse square wave generated when the moving grid 4 moves on the fixed grid 3 is used to calculate the moving distance through the internal chip) to measure their displacement.

[0030] Measurements show that the minimum longitudinal movable space (from the end of the locking mechanism to the connecting bolt of the actuating rod) of the electronic grid vernier caliper is 250mm, and the minimum transverse movable space (including the thickness of the caliper body at the claw head) is 120mm. To facilitate measurement, the length of the electronic grid vernier caliper body 9 was controlled at 230mm and the thickness was controlled at 9mm during production to meet measurement requirements.

[0031] The working principle of this utility model is:

[0032] As shown in Figure 4, knock the lock hook to an appropriate centered position, place it in the measuring tool of the utility model, hook the front claw 12 on the part of the hook head to be measured, then push the rear claw 22 to clamp the part of the locking rod boss to be measured, display the reading, take out the caliper, and take the reading.

[0033] The present invention can shorten the operation time and reduce the measurement error: for example, there are about 10 groups of turnout data that need to be measured. Without considering the repeated measurement data comparison during adjustment, each group of turnout AB machines and fixed reverse positions has a total of 4 data. Therefore, 40 data need to be measured for 10 groups of turnouts. The average measurement time for one data is 0.5 minutes. Therefore, a total of 20 minutes is consumed only on measuring the locking amount data. The present invention can shorten the bolt assembly and disassembly time by 1 / 6, and perform a measurement once in about 5 seconds on average. The measurement time of 10 groups of turnout locking amounts will save 16.7 minutes. The measuring range is as small as two decimal places, which greatly reduces the measurement error.

Claims

1. A novel interlocking locking amount measuring tool, comprising a vernier caliper, wherein the vernier caliper comprises a main scale (1) and a secondary scale (2), characterized in that: A front claw extension rod (11) is provided at the bottom of one end of the main ruler (1), and a front claw (12) vertically connected to the front claw extension rod (11) is provided on the back of the bottom end of the front claw extension rod (11); a rear claw extension rod (21) matching the front claw extension rod (11) is provided at the bottom of one end of the auxiliary ruler (2) close to the front claw extension rod (11), and a rear claw (22) vertically connected to the rear claw extension rod (21) is provided on the back of the bottom end of the rear claw extension rod (21).

2. A novel embedded locking amount measuring tool according to claim 1, characterized in that: The front claw (12) and the rear claw (22) are both triangular prism structures, the side surfaces of the triangular prism structures are arranged facing each other and are parallel to each other, one side surface of the front claw (12) is arranged downward, and one side surface of the rear claw (22) is arranged upward, and the cross-sections of the front claw (12) and the rear claw (22) are both equilateral triangles.

3. A novel embedded locking amount measuring tool according to claim 1 or 2, characterized in that: The length of the rear claw (22) is greater than the length of the front claw (12).

4. A novel embedded locking amount measuring tool according to claim 3, characterized in that: The length of the front claw (12) is 1-2 cm, and the length of the rear claw (22) is 2-4 cm.

5. A novel embedded locking amount measuring tool according to claim 1 or 2, characterized in that: The front claw (12) and the rear claw (22) are both made of 3Cr13 steel.

6. A novel interlocking locking amount measuring tool according to claim 2, characterized in that: The side length of the equilateral triangle is 1 cm.

Images