Array type piezoelectric film dynamic weighing device

Abstract

The utility model discloses an array type piezoelectric film dynamic weighing device, and relates to the technical field of piezoelectric films. The device comprises a weighing device, the weighing device comprises a base, the bottom of the base is fixedly connected with an anti-skid pad, the top of the base is provided with a pressure sensor, one side of the base is fixedly connected with an inclined block, and the inclined surface of the inclined block is provided with an intelligent display screen. The force for pulling the push plate is matched with the sliding block, the positioning block, the stress plate and other assemblies, the push plate is pulled to drive the rack A to move in the horizontal direction, the rack A drives the gear to rotate, the gear drives the rack B to move in the horizontal direction, the rack B drives the stress plate to be far away from the base, and the stress plate is driven to move in the horizontal direction. And then the push plate is loosened, so that the push plate is reset through the spring, the effect of arranging and stacking the films on the weighing table through the reset of the push plate is achieved, and more accurate weighing is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of piezoelectric films, in particular to an array type piezoelectric film dynamic weighing device. Background Art

[0002] Commonly used piezoelectric film weighing systems on the market today typically employ either full-lane or half-lane parallel embedding. Full-lane parallel embedding involves a single sensor covering the entire lane, while half-lane parallel embedding involves two halves of the sensor covering the entire lane. These two embedding methods can only accurately measure vehicle weight under ideal conditions, where the road surface is perfectly flat laterally, or when vehicles pass through the same location. However, in reality, it's difficult to maintain consistent lateral road conditions. Consequently, weighing results can deviate significantly when vehicles pass at different lane locations, preventing further optimization of system accuracy and introducing errors in measuring the vehicle's single or double tire information.

[0003] According to a publicly disclosed weighing device with an obliquely buried piezoelectric film sensor (publication number: CN207688987U), it includes a first piezoelectric film sensor, a ground sensing coil, a second piezoelectric film sensor, a third piezoelectric film sensor, an obliquely buried piezoelectric film sensor, a weighing controller, and a lane. The first piezoelectric film sensor, ground sensing coil, second piezoelectric film sensor, third piezoelectric film sensor, and buried piezoelectric film sensor are sequentially buried underground in the lane. The ground sensing coil is disposed between the first and second piezoelectric film sensors, and the obliquely buried piezoelectric film sensor is disposed behind the third piezoelectric film sensor. The first piezoelectric film sensor, ground sensing coil, second piezoelectric film sensor, third piezoelectric film sensor, and obliquely buried piezoelectric film sensor are connected to the weighing controller via cables. This utility model uses obliquely buried piezoelectric film sensors to accurately calibrate the actual weight of vehicles in offset positions. However, in the above device, the interaction between the first piezoelectric film sensor and the ground sensing coil makes it difficult to achieve the effect of stacking and arranging the piezoelectric films, resulting in deviations in the weighing values, which needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an array-type piezoelectric film dynamic weighing device, which drives rack A to move horizontally by pulling the push plate, thereby causing rack A to drive the gear to rotate, thereby causing the gear to drive rack B to move horizontally, and then causing rack B to drive the force plate away from the base, and then releasing the push plate so that the push plate is reset by the spring, thereby solving the existing problems.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an array-type piezoelectric film dynamic weighing device, comprising a weighing device, the weighing device comprising a base, a non-slip pad fixedly connected to the bottom of the base, a pressure sensor provided on the top of the base, an inclined block fixedly connected to one side of the base, an intelligent display screen provided on the inclined surface of the inclined block, and a weighing platform provided on the top of the pressure sensor;

[0007] A stacking device is provided inside the weighing device, and the stacking device includes a slider, a rectangular groove is provided on one side of the base, a spring is fixedly connected to the inner wall of the rectangular groove, the end of the spring away from the rectangular groove is fixedly connected to the slider, and the end of the slider away from the spring is fixedly connected to a push plate, a square groove is provided on one side of the base, a positioning block is slidably connected to the inner wall of the square groove, and the end of the positioning block away from the square groove is fixedly connected to a force plate, the bottom of the base is fixedly connected to a rotating rod, the end of the rotating rod away from the base passes through a gear and is rotatably connected to the gear, the bottom of the push plate is fixedly connected to a rack A, the rack A and the gear are meshed with each other, the bottom of the force plate is fixedly connected to a rack B, and the rack B and the gear are meshed with each other.

[0008] Furthermore, the number of the anti-slip pads is four, arranged in groups of two, and symmetrical with each other along the vertical center axis of the base. The pressure sensor is located between the base and the weighing platform. The above design is conducive to positioning the device and preventing it from sliding.

[0009] Furthermore, there are two push plates, which are symmetrical with each other along the vertical center axis of the base. The push plates are fixedly connected to the side of the base away from the rectangular groove. There are two force-bearing plates, which are symmetrical with each other along the vertical center axis of the base. The force-bearing plates are fixedly connected to the top of the base. The above design is conducive to fixing the film that needs to be weighed.

[0010] Furthermore, a dust-proof device is provided inside the weighing device, and the dust-proof device includes a screw rod, the inclined surface of the inclined block is rotatably connected to the screw rod, a dust cover is fixedly connected to the circumferential surface of the screw rod, the inclined surface of the inclined block is fixedly connected to a magnet, the magnet and the dust cover are magnetically attracted to each other, a fixed block is fixedly connected to one side of the dust cover, a positioning rod is rotatably connected to one side of the force-bearing plate, and a card block is fixedly connected to the circumferential surface of the positioning rod. The above design is beneficial to protecting the smart display screen and preventing it from oxidation.

[0011] Furthermore, the magnet is located on the displacement track of the dust cover, the material of the dust cover is metal, and the dust cover is located on the displacement track of the block. The above design is conducive to the dust cover covering the smart display screen.

[0012] Furthermore, the shape of the magnet is U-shaped, and the magnet and the smart display screen are in contact with each other. The above design is conducive to better fitting of the magnet and the dust cover.

[0013] Furthermore, there are two sliders, which are symmetrical to each other along the vertical center axis of the base; there are two springs, which are symmetrical to each other along the vertical center axis of the base. The above design is conducive to resetting the push plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model realizes that by pulling the push plate, the push plate drives the rack A to move horizontally, and the rack A drives the gear to rotate, and the gear drives the rack B to move horizontally, and then the rack B drives the force plate away from the base. Then, the push plate is released and reset by the spring, so that the film on the symmetrical weighing table can be sorted and stacked by resetting the push plate, which is convenient for more accurate weighing.

[0016] 2. The utility model realizes that by rotating the screw rod, the screw rod drives the dust cover to rotate, thereby causing the dust cover to be magnetically attracted to the magnet, thereby achieving the effect of protecting the smart display screen from dust.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described 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 creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the base of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the weighing platform of the utility model;

[0023] Figure 5It is a rear view schematic diagram of the three-dimensional structure of the base of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Weighing device; 101. Base; 102. Anti-slip pad; 103. Pressure sensor; 104. Inclined block; 105. Smart display; 106. Weighing platform; 2. Palletizing device; 201. Rectangular slot; 202. Slider; 203. Push plate; 204. Square slot; 205. Positioning block; 206. Force plate; 207. Rotating rod; 208. Gear; 209. Rack A; 210. Rack B; 211. Spring; 3. Dustproof device; 301. Screw; 302. Dust cover; 303. Magnet; 304. Fixing block; 305. Positioning rod; 306. Card block. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 The present invention is an array-type piezoelectric film dynamic weighing device, comprising a weighing device 1, the weighing device 1 comprising a base 101, a non-slip pad 102 fixedly connected to the bottom of the base 101, a pressure sensor 103 provided on the top of the base 101, an inclined block 104 fixedly connected to one side of the base 101, an intelligent display screen 105 provided on the inclined surface of the inclined block 104, and a weighing platform 106 provided on the top of the pressure sensor 103;

[0028] The weighing device 1 is provided with a stacking device 2 inside. The stacking device 2 includes a slider 202. A rectangular groove 201 is provided on one side of the base 101. A spring 211 is fixedly connected to the inner wall of the rectangular groove 201. The end of the spring 211 away from the rectangular groove 201 is fixedly connected to the slider 202. The end of the slider 202 away from the spring 211 is fixedly connected to the push plate 203. A square groove 204 is provided on one side of the base 101. A positioning block 205 is slidably connected to the inner wall of the square groove 204. The end of the positioning block 205 away from the square groove 204 is fixedly connected to the force plate 206, the bottom of the base 101 is fixedly connected to the rotating rod 207, the end of the rotating rod 207 away from the base 101 passes through the gear 208 and is rotatably connected to the gear 208, the bottom of the push plate 203 is fixedly connected to the rack A209, the rack A209 and the gear 208 are engaged with each other, the bottom of the force plate 206 is fixedly connected to the rack B210, the rack B210 and the gear 208 are engaged with each other.

[0029] There are four anti-slip pads 102, arranged in groups of two, and symmetrical with each other along the vertical center axis of the base 101. The pressure sensor 103 is located between the base 101 and the weighing platform 106. The above design is conducive to positioning the device and preventing it from sliding.

[0030] There are two push plates 203, which are symmetrical to each other along the vertical center axis of the base 101. The push plates 203 are fixedly connected to the side of the base 101 away from the rectangular groove 201. There are two force plates 206, which are symmetrical to each other along the vertical center axis of the base 101. The force plates 206 are fixedly connected to the top of the base 101. The above design is conducive to fixing the film that needs to be weighed.

[0031] A dustproof device 3 is provided inside the weighing device 1, and the dustproof device 3 includes a screw rod 301. The inclined surface of the inclined block 104 is rotatably connected to the screw rod 301, and a dust cover 302 is fixedly connected to the circumferential surface of the screw rod 301. The inclined surface of the inclined block 104 is fixedly connected to a magnet 303. The magnet 303 and the dust cover 302 are magnetically attracted to each other. One side of the dust cover 302 is fixedly connected to a fixed block 304, and one side of the force plate 206 is rotatably connected to a positioning rod 305. The circumferential surface of the positioning rod 305 is fixedly connected to a card block 306. The above design is beneficial to protecting the smart display screen 105 and preventing it from oxidation.

[0032] The magnet 303 is located on the displacement track of the dust cover 302 . The dust cover 302 is made of metal. The dust cover 302 is located on the displacement track of the block 306 . The above design is conducive to the dust cover 302 covering the smart display screen 105 .

[0033] The magnet 303 is U-shaped, and the magnet 303 and the smart display screen 105 are in contact with each other. The above design is conducive to better fitting of the magnet 303 and the dust cover 302.

[0034] There are two sliders 202 , which are symmetrical to each other along the vertical center axis of the base 101 . There are two springs 211 , which are symmetrical to each other along the vertical center axis of the base 101 . The above design is conducive to resetting the push plate 203 .

[0035] A specific application of this embodiment is: the present application pulls the push plate 203, so that the push plate 203 drives the rack A209 to move horizontally, thereby causing the rack A209 to drive the gear 208 to rotate, thereby causing the gear 208 to drive the rack B210 to move horizontally, and then causing the rack B210 to drive the force plate 206 away from the base 101, and then place the film to be weighed on the top of the weighing platform 106, and then release the push plate 203, so that the push plate 203 is reset by the spring 211, so that the push plate 203 is close to the weighing platform 106, thereby achieving the reset of the push plate 203, so that the film on the weighing platform 106 is weighed. The stacking effect is arranged to facilitate more accurate weighing, and then by rotating the screw rod 301, the screw rod 301 drives the dust cover 302 to rotate, so that the dust cover 302 is magnetically attracted to the magnet 303, thereby achieving the effect of protecting the smart display screen 105 from dust. When the smart display screen 105 needs to be activated, the fixed block 304 is lifted, so that the fixed block 304 drives the dust cover 302 away from the magnet 303, and then the positioning rod 305 is rotated, so that the positioning rod 305 drives the card block 306 to turn, so that the card block 306 and the dust cover 302 contact each other, thereby clamping the dust cover 302, and then positioning the dust cover 302.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An array-type piezoelectric film dynamic weighing device, comprising a weighing device (1), characterized in that: The weighing device (1) comprises a base (101), a non-slip pad (102) is fixedly connected to the bottom of the base (101), a pressure sensor (103) is arranged on the top of the base (101), an inclined block (104) is fixedly connected to one side of the base (101), a smart display screen (105) is arranged on the inclined surface of the inclined block (104), and a weighing platform (106) is arranged on the top of the pressure sensor (103); A stacking device (2) is arranged inside the weighing device (1), and the stacking device (2) comprises a slider (202); a rectangular groove (201) is provided on one side of the base (101); a spring (211) is fixedly connected to the inner wall of the rectangular groove (201); an end of the spring (211) away from the rectangular groove (201) is fixedly connected to the slider (202); an end of the slider (202) away from the spring (211) is fixedly connected to a push plate (203); a square groove (204) is provided on one side of the base (101); a positioning block (205) is slidably connected to the inner wall of the square groove (204); ), one end of the positioning block (205) away from the square groove (204) is fixedly connected to a force-bearing plate (206), the bottom of the base (101) is fixedly connected to a rotating rod (207), the end of the rotating rod (207) away from the base (101) passes through a gear (208) and is rotatably connected to the gear (208), the bottom of the push plate (203) is fixedly connected to a rack A (209), the rack A (209) and the gear (208) are meshed with each other, and the bottom of the force-bearing plate (206) is fixedly connected to a rack B (210), the rack B (210) and the gear (208) are meshed with each other.

2. The array-type piezoelectric film dynamic weighing device according to claim 1, characterized in that: The number of the anti-slip pads (102) is four, arranged in groups of two, and symmetrical with each other along the vertical center axis of the base (101). The pressure sensor (103) is located between the base (101) and the weighing platform (106).

3. The array-type piezoelectric film dynamic weighing device according to claim 2, characterized in that: The number of the push plates (203) is two and they are symmetrical to each other along the vertical center axis of the base (101); the push plates (203) are fixedly connected to the side of the base (101) away from the rectangular groove (201); the number of the force-bearing plates (206) is two and they are symmetrical to each other along the vertical center axis of the base (101); the force-bearing plates (206) are fixedly connected to the top of the base (101).

4. The array-type piezoelectric film dynamic weighing device according to claim 3, characterized in that: The weighing device (1) is provided with a dustproof device (3) inside, the dustproof device (3) comprising a screw (301), the inclined surface of the inclined block (104) being rotatably connected to the screw (301), a dust cover (302) being fixedly connected to the circumferential surface of the screw (301), the inclined surface of the inclined block (104) being fixedly connected to a magnet (303), the magnet (303) and the dust cover (302) being magnetically attracted to each other, a fixed block (304) being fixedly connected to one side of the dust cover (302), a positioning rod (305) being rotatably connected to one side of the force-bearing plate (206), and a clamping block (306) being fixedly connected to the circumferential surface of the positioning rod (305).

5. The array-type piezoelectric film dynamic weighing device according to claim 4, characterized in that: The magnet (303) is located on the displacement track of the dust cover (302), the dust cover (302) is made of metal, and the dust cover (302) is located on the displacement track of the clamping block (306).

6. The array-type piezoelectric film dynamic weighing device according to claim 5, characterized in that: The magnet (303) is in a U-shape, and the magnet (303) and the smart display screen (105) are in contact with each other.

7. The array-type piezoelectric film dynamic weighing device according to claim 6, characterized in that: The number of the sliders (202) is two, and they are symmetrical to each other along the vertical center axis of the base (101); the number of the springs (211) is two, and they are symmetrical to each other along the vertical center axis of the base (101).

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