CN110686762B - Portable electric subway platform scale rapid calibrating apparatus - Google Patents

Portable electric subway platform scale rapid calibrating apparatus Download PDF

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Publication number
CN110686762B
CN110686762B CN201910303665.2A CN201910303665A CN110686762B CN 110686762 B CN110686762 B CN 110686762B CN 201910303665 A CN201910303665 A CN 201910303665A CN 110686762 B CN110686762 B CN 110686762B
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China
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plate
fixing
sensor
weighing
face
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CN110686762A (en
Inventor
王继迎
李勇
刘红伟
朱珂
高岳阳
廖晓华
王兴鹏
刘宽
李金阳
安卓
王兴亿
王晓波
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Beijing Weiheng Technology Co ltd
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Beijing Weiheng Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G23/00Auxiliary devices for weighing apparatus
    • G01G23/01Testing or calibrating of weighing apparatus

Abstract

The invention belongs to the technical field of subway scale verification, and particularly relates to a portable electric subway scale rapid verification device; the utility model provides a quick calibrating installation of portable electronic weighbridge, includes backup pad, calls board, fixed plate and four pressure rods, backup pad, title board and fixed plate are parallel to each other and set gradually from bottom to top. The invention provides a portable electric underground scale rapid calibrating device with a new structure, which uses a hydraulic device to simultaneously carry out series stress on a measured sensor and a measuring sensor, identifies the underground scale according to the measuring values of the two sensors and ensures that the underground scale meets the specified requirements when in use; the device can reach the requirement of examination regulation fast, has improved verification efficiency, and the examination expense is low, and large-scale weighing apparatus user no longer need invest in a large amount of manpowers, material resources and financial resources when examining and determine, in the city or the inconvenient part of traffic, can not receive the restriction.

Description

Portable electric subway platform scale rapid calibrating apparatus
Technical Field
The invention belongs to the technical field of underground weighbridge verification, and particularly relates to a portable electric underground weighbridge rapid verification device.
Background
The method used for calibrating the current weighing apparatus at home and abroad adopts weights as a standard apparatus, and the standard apparatus has the following defects in practical use: firstly, the requirements of the verification regulations are difficult to meet in reality; secondly, the efficiency of the existing verification method is low; thirdly, the verification cost is high, manpower (10 people, 10 hours) is needed for carrying or hoisting equipment is needed, a large scale weighing apparatus user needs to invest a large amount of manpower, material resources and financial resources during verification, and the verification method is limited in places where cities or transportation is inconvenient.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a novel portable electric rapid detection device for a middle weighbridge.
The specific technical scheme of the invention is as follows:
the invention provides a portable electric subway scale rapid calibrating device which comprises a supporting plate, a weighing plate, a fixing plate and four pressurizing rods, wherein the supporting plate, the weighing plate and the fixing plate are parallel to each other and are sequentially arranged from bottom to top; a measured sensor is arranged between the supporting plate and the weighing plate, one end of the measured sensor is arranged on the supporting plate, and the other end of the measured sensor is in contact with the bottom end face of the weighing plate; the weighing plate is characterized in that a pressurizing assembly is arranged between the weighing plate and the fixing plate, the pressurizing assembly comprises a hydraulic device and a measuring sensor, the hydraulic device is arranged on the weighing plate, the measuring sensor is arranged on the bottom end face of the fixing plate, the measured sensor and the hydraulic device are arranged up and down oppositely, and the hydraulic device and the measuring sensor are arranged up and down oppositely.
In a further improvement, through holes for the pressure rods to pass through are formed in four corners of the fixing plate and four corners of the weighing plate.
In a further improvement, four corners of the supporting plate are respectively provided with a pressurizing rod base, the pressurizing rod base is a short pipe with internal threads, the height of the pressurizing rod base is smaller than the distance between the supporting plate and the weighing plate, the pressurizing rods are threaded rods with external threads, the pressurizing rods are in threaded connection with the pressurizing rod bases, and the fixing plate is connected with the pressurizing rods through bolts.
In a further improvement, the measured sensor and the measuring sensor are respectively connected with a detected weighing display of the weighing apparatus and a detected weighing display of the weighing apparatus.
The measured sensor comprises a sensor body, a steel ball and a limiting seat, the sensor body is fixed on the supporting plate, arc-shaped grooves matched with the steel ball are formed in the upper end face of the sensor body and the lower end face of the limiting seat, the limiting seat is in an inverted trapezoid shape, the upper end face of the limiting seat is in contact with the lower end face of the weighing plate, and the weighing plate is pressed against the steel ball through the limiting seat.
In a further improvement, a first fixing component for fixing the sensor to be tested is arranged on the supporting plate, the first fixing component comprises a limiting groove arranged on the supporting plate, at least 4 fixing grooves respectively arranged on the periphery of the limiting groove and communicated with the limiting groove, telescopic cylinders respectively arranged in the fixing grooves, sliding blocks connected with telescopic rods of the telescopic cylinders and respectively sliding along the corresponding fixing grooves, and pressing blocks respectively connected with the sliding blocks through connecting rods and arranged in the limiting groove, the central point of the limiting groove is coincided with the central point of the supporting plate, the sensor to be tested is arranged in the limiting groove, and the pressing blocks press the sensor body tightly.
In a further improvement, a steel plate is arranged between the weighing plate and the limiting seat.
The improved hydraulic device is characterized in that a wedge-shaped sliding groove is formed in the weighing plate along the length direction of the weighing plate, the transverse central line of the wedge-shaped sliding groove is overlapped with the transverse central line of the weighing plate, a first fixing groove is formed in the central position of the bottom end face of the wedge-shaped sliding groove, a first fixing hanging ring is arranged in the first fixing groove, a wedge-shaped sliding block matched with the wedge-shaped sliding groove is arranged on the bottom end face of the hydraulic device, the central point of the upper end face of the wedge-shaped sliding block is overlapped with the central point of the lower end face of the hydraulic device, and a first fixing hook matched with the first fixing hanging ring is arranged at the central position of the lower end face of the wedge-shaped sliding block.
In a further improvement, a second fixing component for fixing the measuring sensor is arranged on the bottom end face of the fixing plate, the second fixing component comprises at least 4 adjusting holes, adjusting screws which are respectively arranged in the adjusting holes and slide along the adjusting holes, hook plates which are respectively arranged at the bottoms of the adjusting screws, and butterfly nuts which are respectively screwed on the adjusting screws, the adjusting holes penetrate through the upper end face and the lower end face of the fixed plate and are arranged at equal intervals along the circumferential direction formed by the central point of the fixed plate, one end of each adjusting screw is arranged above the fixed plate, the other end of each adjusting screw penetrates through the adjusting holes and is respectively connected with the hook plates, the transverse rod part of each hook plate is tightly attached to the lower end face of an auxiliary platform arranged at the upper end of the measuring sensor, and each butterfly nut is respectively sleeved on each adjusting screw and is arranged on the upper end face of the fixed plate.
In a further improvement, a second fixing groove is formed in the center of the lower end face of the fixing plate, a second fixing hanging ring is arranged in the second fixing groove, and a second fixing hook matched with the second fixing hanging ring is arranged at the center of the upper end face of the auxiliary table.
The invention has the following beneficial effects:
the invention provides a portable electric underground scale rapid calibrating device with a new structure, which uses a hydraulic device to simultaneously carry out series stress on a measured sensor and a measuring sensor, identifies the underground scale according to the measuring values of the two sensors and ensures that the underground scale meets the specified requirements when in use; the device can reach the requirement of examination regulation fast, has improved verification efficiency, and the examination expense is low, and large-scale weighing apparatus user no longer need invest in a large amount of manpowers, material resources and financial resources when examining and determine, in the city or the inconvenient part of traffic, can not receive the restriction.
Drawings
FIG. 1 is a schematic structural diagram of a portable electric subway rapid calibration apparatus according to embodiment 1;
FIG. 2 is a front view of the portable electric weighbridge rapid verification device in example 1;
FIG. 3 is a top view of a fixing plate or plate according to embodiment 2;
FIG. 4 is a partial sectional view of the portable electric weighbridge rapid verification device of embodiment 2;
FIG. 5 is a schematic view of the structure of the fixing plate screwed in embodiment 2;
FIG. 6 is a front view of the portable electric weighbridge rapid verification device of embodiment 3;
FIG. 7 is a front view of the portable electric weighbridge rapid verification device of example 4;
FIG. 8 is a top view of a support plate according to embodiment 4;
FIG. 9 is a side view of the scale plate of example 5;
FIG. 10 is a front view of a fixing plate according to embodiment 6;
FIG. 11 is a plan view of a fixing plate according to embodiment 6.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
Example 1
As shown in fig. 1 and 2, the portable electric rapid calibrating device for a weighbridge comprises a supporting plate 1, a weighing plate 2, a fixing plate 3 and four pressurizing rods 4, wherein the supporting plate 1, the weighing plate 2 and the fixing plate 3 are parallel to each other and are sequentially arranged from bottom to top, and the pressurizing rods 4 sequentially penetrate through the fixing plate 3 and the weighing plate 2 and are respectively connected to four corners of the supporting plate 1; a measured sensor 5 is arranged between the supporting plate 1 and the weighing plate 2, one end of the measured sensor 5 is arranged on the supporting plate 1, and the other end of the measured sensor 5 is in contact with the bottom end face of the weighing plate 2; the weighing plate is characterized in that a pressurizing assembly is arranged between the weighing plate 2 and the fixing plate 3 and comprises a hydraulic device 6 and a measuring sensor 7, the hydraulic device 6 is arranged on the weighing plate 2, the measuring sensor 7 is arranged on the bottom end face of the fixing plate 3, the measured sensor 5 and the hydraulic device 6 are arranged up and down oppositely, and the hydraulic device 6 and the measuring sensor 7 are arranged up and down oppositely.
The invention provides a portable electric underground scale rapid calibrating device with a new structure, which uses a hydraulic device to simultaneously carry out series stress on a measured sensor and a measuring sensor, identifies the underground scale according to the measuring values of the two sensors and ensures that the underground scale meets the specified requirements when in use; the device can reach the requirement of examination regulation fast, has improved verification efficiency, and the examination expense is low, and large-scale weighing apparatus user no longer need invest in a large amount of manpowers, material resources and financial resources when examining and determine, in the city or the inconvenient part of traffic, can not receive the restriction.
In the embodiment, the hydraulic device is a hydraulic cylinder or an electric hydraulic machine, when in measurement, a measurement sensor (preferably 0-20 tons (25 tons) of a coriolis force sensor) is pressurized through the hydraulic device, the measured sensor below a symmetrical plate of a simulated weight is pressurized, and the numerical values of the two measurement sensors are compared to determine the error of the measured weighing apparatus; when the hydraulic device pressurizes the measuring sensor, the counter acting force is applied to the liner plate, and at the moment, the liner plate deforms downwards, so that the measuring sensor is pressurized.
Example 2
As shown in fig. 3, unlike embodiment 1, the portable electric quick calibrating device for a subway platform scale is provided with through holes 8 for the pressure rods 4 to pass through, at each of four corners of the fixing plate 3 and four corners of the scale plate 2.
As shown in fig. 4 and 5, in this embodiment, four corners of the supporting plate 1 are provided with pressure rod bases 9, the pressure rod bases 9 are short pipes with internal threads, the height of the pressure rod bases 9 is smaller than the distance between the supporting plate 1 and the weighing plate 2, the pressure rods 4 are threaded rods with external threads, the pressure rods 4 are screwed with the pressure rod bases 9, and the fixing plate 3 is connected with each pressure rod 4 through bolts 10.
In the invention, 4 through holes are respectively arranged on the fixing plate and the weighing plate so that the pressurizing rod can smoothly pass through the through holes, the supporting plate is provided with a short pipe with internal threads, the height of the short pipe is based on the non-stretching weighing plate, and the short pipe can be in threaded connection with the bottom of the pressurizing rod so as to be convenient for fixing the pressurizing rod; the fixed plate is connected with the pressurizing rod through a bolt so as to fix the fixed plate and further fix the measuring sensor; because the hydraulic device is fixed on the weighing plate, the weighing plate and the screw rod can be fixed or not fixed through bolts, and the weighing plate can be supported through the detected sensor; when the sensor is fixed, the weighing plate generates downward deformation to press the sensor to be measured; when the balance plate is not fixed, the balance plate and the hydraulic device on the balance plate are supported by the measured sensor, so that the measured sensor has a certain indication value, and the indication value needs to be subtracted during final comparison; the screw is made of 12.9-grade high manganese steel, the thread pitch is 15mm, the diameter of the screw is 30mm, and the screw is subjected to carbonization and bluing treatment, can bear 30T without fracture, does not change 15T tension and has high thread strength.
Example 3
A portable electric subway rapid calibrating device is shown in FIG. 6, which is different from the embodiment 1 in that the sensor 5 to be measured and the measuring sensor 7 are respectively connected with a weighing display 11 of the detected subway and a weighing display 12 of the calibrator.
In the embodiment, after the hydraulic device presses the two sensors, the measured sensor and the measuring sensor respectively send the measured values to a weight display (preferably XK3190-A12+ E weight display controller) of the detected weighing apparatus and a weight display (preferably XK3190-A12+ E weight display controller) of the detected weighing apparatus for displaying, and the error of the detected weighing apparatus is determined by comparing the indicating values of the two displays; one of the two displays can be placed on the fixed plate and the other on the ground.
Example 4
The utility model provides a quick calibrating installation of portable electronic weighbridge, as shown in figure 7, is different from embodiment 1, the sensor 5 that is surveyed includes sensor body 501, steel ball 502 and restriction seat 503, sensor body 501 fixes on backup pad 1, the up end of sensor body 501 with the lower terminal surface of restriction seat 503 all be equipped with steel ball 502 complex arc recess 504, restriction seat 503 is the down trapezoidal and up end with weigh the lower terminal surface of board 2 and contact, it compresses tightly steel ball 502 to weigh board 2 through restriction seat 503. Set up the restriction seat into falling trapezoidal in this embodiment, increased the atress area, not only improved measuring accuracy, can also save material, in order to guarantee measuring sensor's perpendicular atress, two arc recesses set up the central point that terminal surface and sensor body up end put the department under the restriction seat respectively.
As shown in fig. 8, in this embodiment, a first fixing assembly 13 for fixing the sensor 5 to be tested is disposed on the supporting plate 1, the first fixing assembly 13 includes a limiting groove 131 disposed on the supporting plate 1, at least 4 fixing grooves 132 respectively disposed around the limiting groove 131 and communicated with the limiting groove 131, telescopic cylinders 133 respectively disposed in the fixing grooves 132, sliders 134 connected to telescopic rods of the telescopic cylinders 133 and respectively sliding along the corresponding fixing grooves 132, and pressing blocks 136 respectively connected to the sliders 134 through connecting rods 135 and disposed in the limiting grooves 131, a center point of the limiting groove 131 coincides with a center point of the supporting plate 1, the sensor 5 to be tested is disposed in the limiting groove 131, and the pressing blocks 136 press the sensor body 501 tightly. In the embodiment, a sensor to be tested is fixed on a supporting plate through a first fixing component, when the sensor is used, a sensor body of the sensor to be tested is placed in a limiting groove, then a telescopic cylinder is started, a telescopic rod of the telescopic cylinder drives a sliding block to slide in the fixing groove along the length direction of the fixing groove, the sliding block drives a compression block to slide through a connecting rod, the telescopic cylinder stops working until the compression block is tightly attached to the sensor body, the sensor body is compressed and fixed through a plurality of compression blocks, the stabilizing effect is good, the sensor fixing device can be suitable for the sensor to be tested with various sizes, and the problem that multiple times of punching are needed when the sensor to be tested with different sizes is adopted is solved; meanwhile, the two telescopic cylinders which are oppositely arranged start and stop working at the same time, so that the sliding distances of the two sliding blocks which are oppositely arranged are the same, the central position of the measured sensor on the supporting plate can be ensured, the measured sensor can further receive the pressure from the center of the lining plate, and the measuring accuracy can be further ensured.
As shown in fig. 7, in the present embodiment, a steel plate 505 is disposed between the scale plate 2 and the limiting seat 503. In the embodiment, the steel plate is arranged to compact the steel ball, the steel ball needs to be vertically placed and positively compacted during installation, and after the steel ball is completely installed, the steel ball is screwed by hands, if the steel ball can be easily rotated, no compaction is indicated, the steel plate needs to be arranged to compact the steel ball at the moment, and whether the compaction of the steel ball affects the measuring effect of the measured sensor.
Example 5
The utility model provides a quick calibrating installation of portable electronic weighbridge, as shown in fig. 9, with embodiment 1 difference, it is equipped with wedge spout 14 to call on the board 2 along the length direction who calls board 2, the horizontal central line of wedge spout 14 with call the horizontal central line of board 2 and coincide mutually, just the central point department of the bottom terminal surface of wedge spout 14 is equipped with first fixed recess 20, be equipped with first fixed link 15 in the first fixed recess 20, be equipped with on the bottom terminal surface of hydraulic means 6 with wedge slider 16 that wedge spout 14 is mutually supported, the central point of the upper end face of wedge slider 16 with the central point of the lower terminal surface of hydraulic means 6 coincides mutually, and the central point department of the lower terminal surface of wedge slider 16 is equipped with first fixed couple 17 with first fixed link 15 matched with.
The embodiment is used for fixing the hydraulic device on the weighing plate and ensuring that the longitudinal central axis of the hydraulic device, the longitudinal central axis of the measured sensor and the longitudinal central axis of the measuring sensor are coincident, so that the forces applied to the measuring sensor and the measured sensor are the same, and the measuring error is reduced; during the use, slide wedge slider from one side opening part of wedge spout, stop the slip when hanging on first fixed couple until first fixed link, the stability of hydraulic means installation has further been guaranteed in the setting of first fixed link, couple, has avoided hydraulic means's removal and has influenced the measuring accuracy.
Example 6
As shown in fig. 10 and 11, the portable electric rapid calibrating device for a subway platform is different from embodiment 1 in that a second fixing component 18 for fixing the measuring sensor 7 is disposed on the bottom end surface of the fixing plate 3, the second fixing component 18 includes at least 4 adjusting holes 181, adjusting screws 182 respectively disposed in the adjusting holes 181 and sliding along the adjusting holes 181, hook plates 183 respectively disposed at the bottoms of the adjusting screws 182, and butterfly nuts 184 respectively screwed on the adjusting screws 182, the adjusting holes 181 are disposed through the upper and lower end surfaces of the fixing plate 3 and equidistantly spaced along the circumferential direction formed by the central point of the fixing plate 3, one end of each adjusting screw 182 is disposed above the fixing plate 3, the other end of each adjusting screw passes through the adjusting hole 181 and is connected to the hook plate 183, the transverse rod portion of each hook plate 183 is tightly attached to the lower end surface of a sub-platform 19 disposed at the upper end of the measuring sensor 7, each butterfly nut 184 is respectively sleeved on each adjusting screw 182 and is arranged on the upper end surface of the fixing plate 3.
The second fixing component is arranged in the embodiment to fix the measuring sensor on the fixing plate, so that the measuring sensor is convenient to disassemble, the measuring sensor cannot be damaged, meanwhile, the second fixing component is suitable for measuring sensors with various sizes, and the problem of repeated punching when measuring sensors with different sizes are installed is solved; when the butterfly nut is used, the cross rod part of each hook plate is hooked on the auxiliary table, and then the butterfly nut is screwed on the adjusting screw rod to be fixed.
As shown in fig. 10, in this embodiment, a second fixing groove 187 is disposed at a central position of a lower end surface of the fixing plate 3, a second fixing hanging ring 185 is disposed in the second fixing groove 187, and a second fixing hook 186 matched with the second fixing hanging ring 185 is disposed at a central position of an upper end surface of the secondary stage 19.
The second fixing hanging ring and the second fixing hook are arranged in the embodiment to fix the measuring sensor at the center of the bottom of the fixing plate and fix the measuring sensor for the second time, so that the measuring sensor is more firm to fix, and the measuring result is prevented from being influenced by the movement of the measuring sensor.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims (8)

1. The portable electric subway platform scale rapid calibrating device is characterized by comprising a supporting plate (1), a weighing plate (2), a fixing plate (3) and four pressurizing rods (4), wherein the supporting plate (1), the weighing plate (2) and the fixing plate (3) are parallel to each other and are sequentially arranged from bottom to top, and each pressurizing rod (4) sequentially penetrates through the fixing plate (3) and the weighing plate (2) and is respectively connected to four corners of the supporting plate (1); a measured sensor (5) is arranged between the support plate (1) and the weighing plate (2), one end of the measured sensor (5) is arranged on the support plate (1), and the other end of the measured sensor is contacted with the bottom end face of the weighing plate (2); a pressurizing assembly is arranged between the weighing plate (2) and the fixing plate (3), the pressurizing assembly comprises a hydraulic device (6) and a measuring sensor (7), the hydraulic device (6) is arranged on the weighing plate (2), the measuring sensor (7) is arranged on the bottom end face of the fixing plate (3), the measured sensor (5) and the hydraulic device (6) are arranged in a vertically opposite mode, and the hydraulic device (6) and the measuring sensor (7) are arranged in a vertically opposite mode; the measured sensor (5) comprises a sensor body (501), a steel ball (502) and a limiting seat (503), the sensor body (501) is fixed on the supporting plate (1), the upper end face of the sensor body (501) and the lower end face of the limiting seat (503) are both provided with arc-shaped grooves (504) matched with the steel ball (502), the limiting seat (503) is in an inverted trapezoid shape, the upper end face of the limiting seat is in contact with the lower end face of the weighing plate (2), and the weighing plate (2) compresses the steel ball (502) through the limiting seat (503); the hydraulic device is characterized in that a wedge-shaped sliding groove (14) is formed in the weighing plate (2) along the length direction of the weighing plate (2), the transverse central line of the wedge-shaped sliding groove (14) is overlapped with the transverse central line of the weighing plate (2), a first fixing groove (20) is formed in the central position of the bottom end face of the wedge-shaped sliding groove (14), a first fixing hanging ring (15) is arranged in the first fixing groove (20), a wedge-shaped sliding block (16) matched with the wedge-shaped sliding groove (14) is arranged on the bottom end face of the hydraulic device (6), the central point of the upper end face of the wedge-shaped sliding block (16) is overlapped with the central point of the lower end face of the hydraulic device (6), and a first fixing hook (17) matched with the first fixing hanging ring (15) is arranged at the central position of the lower end face of the wedge-shaped sliding block (16).
2. The portable electric rapid calibrating device for the underground weighbridge according to claim 1, wherein through holes (8) for the pressure rods (4) to pass through are formed at four corners of the fixing plate (3) and four corners of the weighing plate (2).
3. The portable electric subway scale rapid calibration device as claimed in claim 1, wherein pressure bar bases (9) are provided at four corners of said supporting plate (1), said pressure bar bases (9) are short pipes with internal threads, the height of said pressure bar bases (9) is less than the distance between said supporting plate (1) and said weighing plate (2), said pressure bars (4) are threaded rods with external threads, said pressure bars (4) are screwed with said pressure bar bases (9), and said fixing plate (3) is connected with each of said pressure bars (4) by bolts (10).
4. The portable electric weighbridge rapid verification device according to claim 1, wherein the measured sensor (5) and the measuring sensor (7) are respectively connected with a detected weighbridge weighing display (11) and a verification instrument weighing display (12).
5. The portable electric rapid calibrating device for the subway platform as claimed in claim 1, wherein the supporting plate (1) is provided with a first fixing component (13) for fixing the sensor (5) to be tested, the first fixing component (13) comprises a limiting groove (131) disposed on the supporting plate (1), at least 4 fixing grooves (132) respectively disposed around the limiting groove (131) and communicated with the limiting groove (131), telescopic cylinders (133) respectively disposed in the fixing grooves (132), sliding blocks (134) connected with telescopic rods of the telescopic cylinders (133) and respectively sliding along the corresponding fixing grooves (132), and pressing blocks (136) respectively connected with the sliding blocks (134) through connecting rods (135) and disposed in the limiting groove (131), the center point of the limiting groove (131) coincides with the center point of the supporting plate (1), the sensor (5) to be measured is arranged in the limiting groove (131), and the sensor body (501) is pressed tightly by the pressing blocks (136).
6. The portable electric subway scale rapid verification apparatus as claimed in claim 1, wherein a steel plate (505) is provided between said scale plate (2) and said limiting base (503).
7. The portable electric subway scale rapid calibration device as claimed in claim 1, wherein a second fixing component (18) for fixing said measuring sensor (7) is disposed on the bottom end surface of said fixing plate (3), said second fixing component (18) comprises at least 4 adjusting holes (181), adjusting screws (182) respectively disposed in said adjusting holes (181) and sliding along said adjusting holes (181), hook plates (183) respectively disposed at the bottom of said adjusting screws (182), and butterfly nuts (184) respectively screwed on said adjusting screws (182), each of said adjusting holes (181) penetrates through the top and bottom end surfaces of said fixing plate (3) and is disposed at equal intervals along the circumference direction formed by the center point of said fixing plate (3), one end of each of said adjusting screws (182) is disposed above said fixing plate (3), the other end of each hook plate (183) penetrates through the adjusting hole (181) and is connected with the hook plate (183), the cross rod part of each hook plate (183) is tightly attached to the lower end face of an auxiliary table (19) arranged at the upper end of the measuring sensor (7), and each butterfly nut (184) is sleeved on each adjusting screw rod (182) and is arranged on the upper end face of the fixing plate (3).
8. The portable electric subway scale rapid calibrating device as claimed in claim 7, wherein a second fixing groove (187) is provided at a central position of a lower end surface of said fixing plate (3), a second fixing hanging ring (185) is provided in said second fixing groove (187), and a second fixing hook (186) matching with said second fixing hanging ring (185) is provided at a central position of an upper end surface of said sub-platform (19).
CN201910303665.2A 2019-04-16 2019-04-16 Portable electric subway platform scale rapid calibrating apparatus Active CN110686762B (en)

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CN110686762B true CN110686762B (en) 2022-05-13

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