CN112179473B

CN112179473B - Cheating-preventing weighbridge weighing device and method thereof

Info

Publication number: CN112179473B
Application number: CN202010880738.7A
Authority: CN
Inventors: 桑迪
Original assignee: Nanjing Hengce Electronic Equipment Co ltd
Current assignee: Nanjing Hengce Electronic Equipment Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-10-22
Anticipated expiration: 2040-08-27
Also published as: CN112179473A

Abstract

The invention discloses a cheating-preventing weighbridge weighing device and a method thereof, belonging to the technical field of weighbridge equipment, wherein a weighing platform is arranged at the upper end of a weighbridge, mounting grooves are respectively drilled at the left and right ends of the weighbridge, first rotating shafts are respectively and rotatably connected with the front and rear ends of the two mounting grooves, fixing sleeves are respectively sleeved on the circumferential surfaces of the four first rotating shafts, first inserting rods are respectively and fixedly connected with the upper ends of the four fixing sleeves, screw rods are respectively arranged at the upper ends of the four first inserting rods, circular grooves are respectively drilled at the lower ends of the four screw rods, the four first inserting rods are respectively and movably inserted into the four circular grooves, rotating grooves are respectively drilled at the upper ends of the four screw rods, a second rotating shaft is respectively and rotatably connected into the four rotating grooves, fixing clamps are respectively and rotatably connected with the circumferential surfaces of the four screw rods, finally, the generation of signals which are near the weighbridge interfered by a magnetic field can be realized, the remote control of other people can be prevented, and the weighing platform can be conveniently lifted and checked, prevent other people from damaging fair trade by adding the splint bricks into the weighbridge.

Description

Cheating-preventing weighbridge weighing device and method thereof

Technical Field

The invention relates to the technical field of weighbridge equipment, in particular to a weighbridge weighing device capable of preventing cheating and a weighing method thereof.

Background

The weighing sensor commonly used for the weighbridge is in an analog strain gauge mode, the weighing instrument in the analog mode is mature in technology and low in price, but cheating behaviors such as hiding, under-reporting and modifying weighing data through remote control easily occur, the situation that a weighbridge person only reads data and does not record or record false data can also occur, and the phenomenon that weight loss occurs by replacing the weighing instrument cheating occurs.

The cheating mode of current weighbridge is mostly to showing the reading to clamp plugboard brick and remote control weighbridge in the weighbridge, places hard object in the weighbridge, utilizes reaction force, reaches the purpose that the total weight is reduced in the goods of getting into the pound of passing a pound. The principle is that when a truck passes through a wagon balance, gravity is transmitted to the weighing sensors of each bearing point, the output ends of the sensors generate voltage signals, and at the moment, objects are stacked on the bottom of the wagon balance to generate a reaction force, so that the output signals of the sensors are reduced, actual weighing is also reduced, and normal metering weighing data are changed by using a remote controller when materials are stored in a warehouse or products are taken out of the warehouse and weighed. The cheating method is convenient and concealed, a vehicle driver only needs to control nearby, the remote controller can be inserted into the pocket, the weighing result can be changed by pressing one key, and the cheating method is difficult to find, so that the cheating prevention weighbridge weighing device is provided.

Summary of the invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a cheating-prevention weighbridge weighing device and a cheating-prevention weighbridge weighing method, which can generate a signal that a magnetic field interferes with the vicinity of the weighbridge, prevent remote control of other people, facilitate lifting and checking of a weighbridge weighing platform and prevent other people from adding a clamping plate brick into the weighbridge to damage fair trade.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

a wagon balance weighing device capable of preventing cheating comprises a wagon balance, wherein a weighing platform is arranged at the upper end of the wagon balance, mounting grooves are formed in the left end and the right end of the wagon balance, first rotating shafts are rotatably connected to the front end and the rear end of each mounting groove, fixing sleeves are sleeved on the circumferential surfaces of the four first rotating shafts, first inserting rods are fixedly connected to the upper ends of the four fixing sleeves, screw rods are arranged at the upper ends of the four first inserting rods, circular grooves are formed in the lower ends of the four screw rods, the four first inserting rods are movably inserted into the four circular grooves respectively, rotating grooves are formed in the upper ends of the four screw rods, second rotating shafts are rotatably connected into the four rotating grooves respectively, fixing clamps are connected to the circumferential surfaces of the four screw rods in a threaded manner, the four fixing clamps are clamped to the weighing platform in a clamping manner, and supporting plates are fixedly connected to the upper ends of the four second rotating shafts, the upper ends and the lower ends of the four supporting plates are fixedly connected with sliding rods, the upper part of the weighing platform is provided with two sliding rails, the upper inner walls and the lower inner walls of the two sliding rails are provided with sliding grooves, the eight sliding rods are respectively connected in the four sliding grooves in a sliding manner, the upper ends of the two sliding rails are respectively and fixedly connected with a second fixing plate, the upper ends of the two second fixing plates are respectively and fixedly connected with magnets, the circumferential surfaces of the two magnets are respectively wound with coils, and the two coils are electrically connected with an external power supply, the left and right sides of weighbridge all is provided with locking mechanism, both sides all are provided with fixed establishment around the weighbridge, two the lower extreme of second fixed plate all is provided with stop gear, can realize finally generating near signal of magnetic field interference weighbridge, prevents other people remote control, also is convenient for lift up the inspection with weighbridge weighing platform, prevents that other people from adding the fair trade of splint brick destruction in to the weighbridge.

As a preferable scheme of the invention, the locking mechanism comprises a limit buckle, a locking screw and a third rotating shaft, the limit buckle is rotatably connected to the wagon balance through the third rotating shaft, and the locking screw is in threaded connection with a threaded hole of the limit buckle and is fixed on the wagon balance.

As a preferred scheme of the present invention, the fixing mechanism includes two hexagonal sockets, two hexagonal insertion blocks and a first fixing plate, the two hexagonal sockets are respectively drilled at the front ends of the two fixing sleeves, the two hexagonal insertion blocks are respectively movably inserted into the two hexagonal sockets, and the first fixing plate is fixedly connected to the front ends of the two hexagonal insertion blocks.

As a preferable scheme of the present invention, the limiting mechanism includes two third insertion rods, two second circular holes and two first circular holes, the two first circular holes are all cut at the upper end of the slide rail, the two second insertion rods are respectively movably inserted into the two first circular holes, the upper ends of the two second insertion rods are both fixedly connected to the lower end of the second fixing plate, the two second circular holes are respectively cut at the upper ends of the two supporting plates, the two second circular holes are respectively matched with the two second insertion rods, the two third insertion rods are both fixedly connected to the lower end of the second fixing plate, and the two third insertion rods are both located at one side of the two second insertion rods.

In a preferred embodiment of the present invention, the two second fixing plates are provided at upper ends thereof with insulating protection covers, and the two magnets and the two coils are respectively located in the two insulating protection covers.

As a preferable scheme of the invention, two handles are fixedly connected to the upper ends of the two second fixing plates, and the surfaces of the two handles are wrapped with anti-skidding foam-rubber cushions.

As a preferable scheme of the invention, four corners of the lower end of the wagon balance are fixedly connected with supporting legs, and the lower ends of the four supporting legs are fixedly connected with rubber pads.

As a preferable scheme of the present invention, the surfaces of the four fixing clips and the two second fixing plates are respectively wrapped with an insulating rubber sleeve.

As a preferable scheme of the invention, anti-skid grains are engraved on the surfaces of the six rubber sleeves and the four rubber pads.

A method of using a cheating-resistant weighbridge weighing device, comprising the steps of:

s1: the locking screw is rotated to lock the limit buckle, the two slide rails are held by the hand, the two slide rails are pulled outwards, the movement of the two slide rails drives the movement of the four screw rods, the four screw rods are separated from the four first insert rods, the four fixing sleeves are rotated to enable the direction of the four first insert rods to be perpendicular to the ground, the two first fixing plates are held by the hand, the four hexagonal insert blocks are respectively inserted into the four hexagonal slots to fix the positions of the four first insert rods, and the four screw rods are respectively sleeved on the four first insert rods.

S2: hold two slide rails, two slide rails of direction pulling that keep away from mutually, four backup pads are sliding connection respectively in two slide rails, realize changing the position of two slide rails, hold four handles, insert four second inserted bars in four second round holes, make the backup pad be located between third inserted bar and the second inserted bar, with two coil electric connection external power source, the circular telegram of two coils generates magnetic field under the effect of magnetite, realize interfering with near signal of weighbridge, prevent that external equipment from changing the number of degrees of weighing of weighbridge.

S3: the power of closing two coils holds four handles, and two second fixed plates of rebound, four second inserted bars break away from four first round holes respectively, hold two slide rails, upwards lift two slide rails, and four screw rods break away from four first inserted bars respectively, hold four fixation clamps, with four fixation clamps and four screw rod threaded connection, with four screw rod card both ends around the weighbridge.

S4: remove two slide rails, make two slide rails be located and lift up the most comfortable position, hold two slide rails, upwards lift up two slide rails, two slide rail rebound drive four screw rod rebound, four screw rod rebound drive four fixation clamps rebound, four fixation clamp rebound drive the platform rebound of weighing, realize the separation of platform of weighing and weighbridge, whether accompany in the weighbridge and remove brick or other foreign matters of being convenient for look over.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can change the position of slide rail through flexible rotatory screw rod, regard the slide rail as the platform that supports the second fixed plate, disturb near the signal of weighbridge after magnetite of being convenient for and coil circular telegram, prevent other people remote control weighbridge's the number of degrees of weighing.

(2) The distance of slide rail can be adjusted to this scheme, realizes increasing the scope that reduces magnetite and coil production magnetic field, also can be through the magnetic field scope that increases voltage change magnetite and coil, realizes protecting the weighbridge, prevents the number of degrees of weighing of other people remote control weighbridge.

(3) After the second fixed plate was taken off to this scheme, four fixation clamps were installed, can take off the platform of weighing through lifting the slide rail, whether accompany in looking over the weighbridge and remove brick or other foreign matters, had improved the fairness of transaction, prevented other people from practising fraud.

Drawings

FIG. 1 is a first perspective view of a cheating-resistant weighbridge weighing device and method of the present invention;

FIG. 2 is a second perspective view of a cheating-resistant weighbridge weighing device and method of the present invention;

FIG. 3 is a plan view of a cheating-resistant weighbridge weighing device and method of the present invention;

FIG. 4 is a left side view of a cheating-resistant weighbridge weighing device and method of the present invention;

fig. 5 is a top view of a cheating-resistant weighbridge weighing device and method of the present invention.

The reference numbers in the figures illustrate:

1 weighbridge, 2 supporting legges, 3 platform of weighing, 4 mounting grooves, 5 first pivots, 6 fixed sleeves, 7 hexagonal slots, 8 hexagonal inserted blocks, 9 first fixed plates, 10 first inserted bars, 11 fixation clamps, 12 screw rods, 13 second pivots, 14 backup pads, 15 slide rails, 16 first round holes, 17 second inserted bars, 18 second round holes, 19 third inserted bars, 20 second fixed plates, 21 handles, 22 magnetite, 23 coils, 24 spacing buckles, 25 locking screws, 26 third pivots.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-5, a wagon balance weighing device and method for preventing cheating includes a wagon balance 1, a weighing platform 3 is disposed at an upper end of the wagon balance 1, mounting grooves 4 are drilled at left and right ends of the wagon balance 1, first rotating shafts 5 are rotatably connected to front and rear ends of the two mounting grooves 4, fixing sleeves 6 are respectively sleeved on circumferential surfaces of the four first rotating shafts 5, first inserting rods 10 are fixedly connected to upper ends of the four fixing sleeves 6, screw rods 12 are respectively disposed at upper ends of the four first inserting rods 10, circular grooves are respectively drilled at lower ends of the four screw rods 12, the four first inserting rods 10 are respectively movably inserted into the four circular grooves, rotating grooves are respectively drilled at upper ends of the four screw rods 12, second rotating shafts 13 are rotatably connected to the four rotating grooves, fixing clamps 11 are respectively threadedly connected to circumferential surfaces of the four screw rods 12, the four fixing clamps 11 are respectively fastened to the weighing platform 3, and supporting plates 14 are respectively fixedly connected to upper ends of the four second rotating shafts 13, the equal fixedly connected with slide bar in both ends about four backup pads 14, the upper portion of weighing platform 3 is provided with two slide rails 15, the spout has all been dug to the upper and lower inner wall of two slide rails 15, eight slide bars are sliding connection respectively in four spouts, the equal fixedly connected with second fixed plate 20 in upper end of two slide rails 15, the equal fixedly connected with magnetite 22 in upper end of two second fixed plates 20, the equal winding of circumference surface of two magnetite 22 has coil 23, the equal electric connection in external power source of two coil 23, the left and right sides of weighbridge 1 all is provided with locking mechanism, both sides all are provided with fixed establishment around weighbridge 1, the lower extreme of two second fixed plates 20 all is provided with stop gear.

In this embodiment, the weighbridge 1 is weighed, for those skilled in the art, the weighbridge 1 is the prior art, and will not be described in detail, the weighing platform 3 is a platform for placing objects to be weighed, the mounting groove 4 is convenient for the slide rail 15 to be accommodated, the first rotating shaft 5 is convenient for the fixing sleeve 6 to rotate, the fixing sleeve 6 supports the first inserting rod 10, the first inserting rod 10 is inserted into the screw 12, the fixing clamp 11 is connected to the screw 12 in a threaded manner, the weighing platform 3 is clamped by the fixing clamp 11 to lift up and remove the weighing platform 3, the second rotating shaft 13 is rotatably connected to the screw 12, the rotation of the screw 12 cannot be driven by the rotation of the second rotating shaft 13, the support plate 14 supports the slide rail 15, the slide rail 15 moves left and right to change the positions of the magnet 22 and the coil 23, the second fixing plate 20 fixes the magnet 22 and the coil 23, and generates a signal near magnetic field interference by electrifying the coil 23, to prevent others from cheating by scientific means, it is common knowledge for those skilled in the art to energize the coil 23 to generate a magnetic field, and the detailed description thereof is omitted.

Specifically, referring to fig. 1-4, the locking mechanism includes a limit buckle 24, a locking screw 25 and a third rotating shaft 26, the limit buckle 24 is rotatably connected to the wagon balance 1 through the third rotating shaft 26, and the locking screw 25 is threadedly connected to a threaded hole of the limit buckle 24 and fixed to the wagon balance 1.

In this embodiment, stop buckle 24 rotates through third pivot 26 and connects in weighbridge 1, and locking screw 25 threaded connection is in stop buckle 24's screwed hole and is fixed in weighbridge 1, when slide rail 15 was accomodate in mounting groove 4, prevents to rock and leads to slide rail 15 to break away from mounting groove 4.

Specifically, referring to fig. 1-5, the fixing mechanism includes two hexagonal sockets 7, two hexagonal insertion blocks 8 and a first fixing plate 9, the two hexagonal sockets 7 are respectively drilled at the front ends of the two fixing sleeves 6, the two hexagonal insertion blocks 8 are respectively movably inserted into the two hexagonal sockets 7, and the first fixing plate 9 is fixedly connected to the front ends of the two hexagonal insertion blocks 8.

In this embodiment, two hexagonal slots 7 are dug respectively in the front end of two fixed sleeves 6, and two hexagonal inserted blocks 8 are the activity respectively and are pegged graft in two hexagonal slots 7, and first fixed plate 9 fixed connection is in the front end of two hexagonal inserted blocks 8, and the fixed sleeve 6's of being convenient for position prevents that fixed sleeve 6 from rotating.

Specifically, referring to fig. 1-4, the limiting mechanism includes two third insertion rods 19, two second insertion rods 17, two second circular holes 18 and two first circular holes 16, the two first circular holes 16 are all cut in the upper end of the slide rail 15, the two second insertion rods 17 are movably inserted into the two first circular holes 16 respectively, the upper ends of the two second insertion rods 17 are fixedly connected to the lower ends of the second fixing plates 20, the two second circular holes 18 are cut in the upper ends of the two supporting plates 14 respectively, the two second circular holes 18 are respectively matched with the two second insertion rods 17, the two third insertion rods 19 are fixedly connected to the lower ends of the second fixing plates 20, and the two third insertion rods 19 are located on one side of the two second insertion rods 17.

In this embodiment, two first round holes 16 all dig in the upper end of slide rail 15, two second inserted bars 17 activity respectively are pegged graft in two first round holes 16, and the equal fixed connection in the lower extreme of second fixed plate 20 in the upper end of two second inserted bars 17, two second round holes 18 dig respectively in the upper end of two backup pads 14, and two second round holes 18 respectively with two second inserted bars 17 phase-matchs, the equal fixed connection in the lower extreme of second fixed plate 20 of two third inserted bars 19, and two third inserted bars 19 all are located one side of two second inserted bars 17, be convenient for restrict slide rail 15's displacement.

The upper ends of the two second fixing plates 20 are provided with insulating protective covers, and the two magnets 22 and the two coils 23 are respectively located in the two insulating protective covers, which are not shown in the figure.

In this embodiment, the two magnets 22 and the two coils 23 are respectively located in the two insulating protective covers, which is beneficial to preventing electric shock and improving the safety of the device.

Specifically, referring to fig. 1 to 5, two handles 21 are fixedly connected to the upper ends of the two second fixing plates 20, and the surfaces of the two handles 21 are wrapped by anti-slip sponge pads.

Specifically, referring to fig. 1-5, the four corners of the lower end of the wagon balance 1 are fixedly connected with supporting legs 2, and the lower ends of the four supporting legs 2 are fixedly connected with rubber pads.

In this embodiment, the equal fixedly connected with supporting legs 2 in lower extreme four corners department of weighbridge 1, the equal fixedly connected with rubber pad of lower extreme of four supporting legs 2 is of value to support this device.

Specifically, referring to fig. 1 to 5, the surfaces of the four fixing clips 11 and the two second fixing plates 20 are covered with insulating rubber sleeves.

In this embodiment, the surfaces of the four fixing clips 11 and the two second fixing plates 20 are wrapped with insulating rubber sleeves, which is beneficial to increase friction force.

Specifically, referring to fig. 1-5, the six rubber sleeves and the four rubber pads are engraved with anti-slip lines on the surfaces thereof, which also improves the comfort of holding the handle 21.

In this embodiment, six rubber sleeves and four rubber pads's surface is carved with anti-skidding line, is of value to further increase frictional force, prevents the emergence of the phenomenon of skidding.

s1: the locking screw 25 is rotated to lock the limit buckle 24, the two sliding rails 15 are held by hands, the two sliding rails 15 are pulled outwards, the two sliding rails 15 move to drive the four screw rods 12 to move, the four screw rods 12 are separated from the four first insertion rods 10, the four fixing sleeves 6 are rotated to enable the four first insertion rods 10 to be perpendicular to the ground, the two first fixing plates 9 are held by the hands, the four hexagonal insertion blocks 8 are respectively inserted into the four hexagonal slots 7 to fix the positions of the four first insertion rods 10, and the four screw rods 12 are respectively sleeved on the four first insertion rods 10.

S2: two slide rails 15 are held to the hand, two slide rails 15 are pulled to the direction of keeping away from mutually, four backup pads 14 are sliding connection respectively in two slide rails 15, realize changing the position of two slide rails 15, hold four handles 21, insert four second inserted bars 17 in four second round holes 18, make backup pad 14 be located between third inserted bar 19 and second inserted bar 17, with two coils 23 electric connection external power source, the circular telegram of two coils 23 generates magnetic field under the effect of magnetite 22, realize interfering with near signal of weighbridge 1, prevent that external equipment from changing the weighing degree of weighbridge 1.

S3: the power supply of the two coils 23 is turned off, the four handles 21 are held by hands, the two second fixing plates 20 are moved upwards, the four second inserting rods 17 are separated from the four first round holes 16 respectively, the two slide rails 15 are held by hands, the two slide rails 15 are lifted upwards, the four screw rods 12 are separated from the four first inserting rods 10 respectively, the four fixing clamps 11 are held by hands, the four fixing clamps 11 and the four screw rods 12 are connected through threads, and the four screw rods 12 are clamped at the front end and the rear end of the wagon balance 1.

S4: remove two slide rails 15, make two slide rails 15 be located and lift up the most comfortable position, hold two slide rails 15, upwards lift up two slide rails 15, two slide rails 15 move up and drive four screw rods 12 and upwards remove, four screw rods 12 upwards remove and drive four fixation clamps 11 and upwards remove, four fixation clamps 11 upwards remove and drive 3 rebound of platform of weighing, realize the separation of platform of weighing 3 and weighbridge 1, whether accompany in the weighbridge 1 and remove brick or other foreign matters of being convenient for look over.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.

Claims

1. A cheating-prevention weighbridge weighing device, comprising a weighbridge (1), characterized in that: the weighing platform (3) is arranged at the upper end of the wagon balance (1), mounting grooves (4) are formed in the left end and the right end of the wagon balance (1), first rotating shafts (5) are rotatably connected to the front end and the rear end of each mounting groove (4), fixing sleeves (6) are sleeved on the circumferential surfaces of the four first rotating shafts (5), first inserting rods (10) are fixedly connected to the upper ends of the four fixing sleeves (6), screw rods (12) are arranged at the upper ends of the four first inserting rods (10), circular grooves are formed in the lower ends of the four screw rods (12), the four first inserting rods (10) are movably inserted into the four circular grooves respectively, rotating grooves are formed in the upper ends of the four screw rods (12), second rotating shafts (13) are rotatably connected into the four rotating grooves respectively, and fixing clamps (11) are in threaded connection with the circumferential surfaces of the four screw rods (12), four fixing clamps (11) are all clamped on the weighing platform (3), the upper ends of the four second rotating shafts (13) are all fixedly connected with supporting plates (14), the upper ends and the lower ends of the four supporting plates (14) are all fixedly connected with sliding rods, the upper portion of the weighing platform (3) is provided with two sliding rails (15), the upper inner wall and the lower inner wall of the two sliding rails (15) are provided with sliding grooves, the eight sliding rods are respectively and slidably connected into the four sliding grooves, the upper ends of the two sliding rails (15) are all fixedly connected with second fixing plates (20), the upper ends of the two second fixing plates (20) are all fixedly connected with magnets (22), the circumferential surfaces of the two magnets (22) are all wound with coils (23), the two coils (23) are all electrically connected to an external power supply, the left side and the right side of the weighbridge (1) are both provided with locking mechanisms, the front side and the rear side of the weighbridge (1) are both provided with fixing mechanisms, two the lower extreme of second fixed plate (20) all is provided with stop gear, locking mechanism includes stop buckle (24), locking screw (25) and third pivot (26), stop buckle (24) rotate through third pivot (26) and connect in weighbridge (1), locking screw (25) threaded connection is in the screwed hole of stop buckle (24) and is fixed in weighbridge (1), fixing mechanism includes two hexagonal slots (7), two hexagonal inserted blocks (8) and first fixed plate (9), two hexagonal inserted block (7) are dug in the front end of two fixed sleeves (6) respectively, two hexagonal inserted block (8) are movable respectively and are pegged graft in two hexagonal inserted blocks (7), first fixed plate (9) fixed connection is in the front end of two hexagonal inserted blocks (8).

2. A cheating-resistant weighbridge weighing device, according to claim 1, wherein: stop gear includes two third inserted bars (19), two second inserted bars (17), two second round holes (18) and two first round holes (16), two first round hole (16) all excavate in the upper end of slide rail (15), two second inserted bar (17) activity respectively is pegged graft in two first round holes (16), and the equal fixed connection in the lower extreme of second fixed plate (20) in the upper end of two second inserted bars (17), two second round hole (18) are excavated respectively in the upper end of two backup pads (14), and two second round holes (18) respectively with two second inserted bar (17) phase-matches, two equal fixed connection in the lower extreme of second fixed plate (20) in third inserted bar (19), and two third inserted bars (19) all are located one side of two second inserted bars (17).

3. A cheating-resistant weighbridge weighing device, according to claim 2, wherein: the upper end of the second fixing plate (20) is provided with an insulating protective cover, and the magnets (22) and the coils (23) are located in the two insulating protective covers respectively.

4. A cheating-resistant weighbridge weighing device, according to claim 3, wherein: two equal fixedly connected with two handles (21) in the upper end of second fixed plate (20), two the surface of handle (21) all wraps up anti-skidding foam-rubber cushion.

5. A cheating-resistant weighbridge weighing device in accordance with claim 4, wherein: the lower end four corners of the wagon balance (1) are fixedly connected with supporting legs (2), and the lower ends of the supporting legs (2) are fixedly connected with rubber pads.

6. A cheating-resistant weighbridge weighing device in accordance with claim 5, wherein: the surfaces of the four fixing clamps (11) and the two second fixing plates (20) are wrapped by insulating rubber sleeves.

7. A cheating-resistant weighbridge weighing device in accordance with claim 6, wherein: the surfaces of the six rubber sleeves and the four rubber pads are all engraved with anti-skid lines.

8. The method of using a cheating-resistant weighbridge weighing device of claim 7, comprising the steps of:

s1: the locking screw (25) is rotated to lock the limit buckle (24), the two sliding rails (15) are held by hands, the two sliding rails (15) are pulled outwards, the movement of the two sliding rails (15) drives the movement of the four screw rods (12), the four screw rods (12) are separated from the four first inserted rods (10), the four fixing sleeves (6) are rotated to ensure that the directions of the four first inserted rods (10) are vertical to the ground, the two first fixing plates (9) are held by hands, the four hexagonal inserted blocks (8) are respectively inserted into the four hexagonal slots (7) to fix the positions of the four first inserted rods (10), and the four screw rods (12) are respectively sleeved on the four first inserted rods (10),

s2: holding two slide rails (15), pulling two slide rails (15) towards the direction away from each other, connecting four support plates (14) in the two slide rails (15) in a sliding manner respectively, realizing the change of the positions of the two slide rails (15), holding four handles (21), inserting four second insertion rods (17) into four second round holes (18), enabling the support plates (14) to be positioned between a third insertion rod (19) and the second insertion rods (17), electrically connecting two coils (23) with an external power supply, generating a magnetic field under the action of a magnet (22) by electrifying the two coils (23), realizing the interference of signals near the weighbridge (1), preventing external equipment from changing the weighing degree of the weighbridge (1),

s3: closing a power supply of two coils (23), holding four handles (21), moving two second fixing plates (20) upwards, separating four second inserting rods (17) from four first round holes (16) respectively, holding two sliding rails (15), lifting the two sliding rails (15) upwards, separating four screws (12) from four first inserting rods (10) respectively, holding four fixing clamps (11), connecting the four fixing clamps (11) with the four screws (12) in a threaded manner, clamping the four screws (12) at the front end and the rear end of the wagon balance (1),

s4: remove two slide rails (15), make two slide rails (15) be located and lift up the most comfortable position, hold two slide rails (15), upwards lift up two slide rails (15), two slide rails (15) rebound drive four screw rods (12) rebound, four screw rods (12) rebound drive four fixation clamps (11) rebound, four fixation clamps (11) rebound drive weighing platform (3) rebound, realize the separation of weighing platform (3) and weighbridge (1), whether accompany in being convenient for look over weighbridge (1) and move brick or other foreign matters.