CN107907199B

CN107907199B - Weighing tray

Info

Publication number: CN107907199B
Application number: CN201711242022.9A
Authority: CN
Inventors: 周旸; 梁艳; 徐长海; 梁峻; 陈婷婷; 曹雯; 孙昕; 孙洪俊; 王玉鹏
Original assignee: Nanjing Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Current assignee: Nanjing Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2024-01-02
Anticipated expiration: 2037-11-30
Also published as: CN107907199A

Abstract

The invention provides a weighing tray, which comprises a supporting bottom plate, a bearing plate, a data acquisition box and four pressure detection mechanisms, wherein the supporting bottom plate is provided with a plurality of pressure detection units; the pressure detection mechanism comprises an upper hinging seat, a pressure bearing rod, a pressure bearing seat and a limiting seat; and a power module, a controller, an A/D acquisition module and a wireless transmission module are arranged in the data acquisition box. The weighing tray is detachably arranged on the limiting seat through the lower side of the pressure-bearing seat, and the lower end of the pressure-bearing rod is slidably inserted into the mounting jack of the pressure-bearing seat, so that the pressure-bearing seats with different measuring ranges can be conveniently replaced according to the field use requirement, and the weighing tray is flexible and convenient to use.

Description

Weighing tray

Technical Field

The invention relates to a weighing device, in particular to a weighing tray.

Background

At present, the existing weighing tray is generally fixed in measuring range, such as a floor scale, and is large in measuring range, but is also large in error, generally 30 tons of error is about 20 kg, and the weighing requirement of various cargoes on site cannot be met. Therefore, it is necessary to design a weighing tray with a changeable measuring range, so as to meet the weighing requirements of various goods and ensure the weighing precision.

Disclosure of Invention

The invention aims at: the weighing tray with the replaceable measuring range is provided, so that the weighing requirements of various goods are met, and the weighing precision is ensured.

In order to achieve the aim of the invention, the invention provides a weighing tray which comprises a supporting bottom plate, a bearing plate, a data acquisition box and four pressure detection mechanisms; the pressure detection mechanism comprises an upper hinging seat, a pressure bearing rod, a pressure bearing seat and a limiting seat; the upper hinging seats of the four pressure detection mechanisms are respectively and fixedly arranged at four vertex angles of the lower side surface of the bearing plate; the limiting seats of the four pressure detection mechanisms are respectively and fixedly arranged at four vertex angles of the upper side surface of the supporting bottom plate; the upper end of the pressure-bearing rod is hinged on the upper hinging seat; the upper side of the pressure-bearing seat is vertically provided with a mounting jack; a guide hole is vertically arranged at the bottom of the hole of the installation jack; a sensor mounting cavity is arranged at the lower side of the guide hole; a pressure sensor is arranged in the sensor mounting cavity; a dowel bar is vertically inserted in the guide hole in a sliding mode, and the lower end of the dowel bar is supported on the pressure sensor; a supporting disc is arranged at the top of the dowel bar; the lower ends of the pressure-bearing rods of the four pressure detection mechanisms are respectively vertically and slidably inserted into the mounting jacks of the four pressure-bearing seats, and the lower ends of the pressure-bearing rods are supported on the supporting disc; the lower side of the pressure-bearing seat is detachably arranged on the limit seat; a power module, a controller, an A/D acquisition module and a wireless transmission module are arranged in the data acquisition box; the data lines of the four pressure sensors are electrically connected with the A/D acquisition module; the controller is electrically connected with the A/D acquisition module and the wireless transmission module respectively; the power module is used for supplying power to the controller, the A/D acquisition module, the pressure sensor and the wireless transmission module respectively.

Further, the device also comprises a lifting mechanism; the lifting mechanism comprises an outer connecting rod, an inner connecting rod, an upturned rod and an overhanging seat; a central column is arranged in the middle of the upper side surface of the supporting bottom plate, and a limit column is arranged in the middle of the lower side surface of the bearing plate; one end of the outer connecting rod is hinged with one end of the inner connecting rod in a swinging way; the other end of the inner connecting rod is fixedly arranged with one end of the upturned rod, and the inner connecting rod forms an angle with the upturned rod; the fixed mounting points of the inner connecting rod and the upturned rod are hinged and mounted on the upper side of the supporting bottom plate through the hinged supporting seat; the other end of the warping rod is hinged on the outer side surface of the cantilever seat; a limiting round groove opposite to the limiting cylinder is formed in the upper side surface of the cantilever seat, and a sliding hole is formed in the lower side surface of the cantilever seat; the center column is inserted in the sliding hole in a sliding mode. The outer connecting rod is conveniently folded into a gap between the supporting bottom plate and the bearing plate when the device is not used by utilizing the hinged installation of the outer connecting rod and the inner connecting rod; through pressing down the handle, utilize lever principle to pick up the seat of encorbelmenting, the center post slides along the slide hole and is spacing this moment, and spacing cylinder supports on spacing circular slot to unsettled lifting the bearing plate, making the lower extreme of pressure-bearing rod pull out outside the installation jack, make change convenient and fast.

Further, a reinforcing sleeve is sleeved on the outer connecting rod in a sliding manner; the other end of the outer connecting rod is provided with a pressing handle. The reinforcing sleeve is sleeved on the hinge position of the outer connecting rod and the inner connecting rod, so that the structural strength of the hinge position can be ensured.

Further, wire grooves are formed in the peripheral edges of the supporting bottom plate; the four vertex angles of the supporting bottom plate are respectively provided with a socket; the side surface of the pressure-bearing seat is provided with a connecting wire connected with a signal end and a power end of the pressure sensor; a plug which is inserted on the socket is arranged at the tail end of the connecting wire; a cable combined by a data wire and a power wire is arranged in the wire slot; one end of the cable is correspondingly connected with the socket, and the other end of the cable is correspondingly connected with the power module and the A/D acquisition module in the data acquisition box. The rapid line connection can be realized by adopting the matching of the socket and the plug.

Further, a T-shaped chute is arranged on the limit seat; a T-shaped sliding block is arranged on the lower side of the pressure-bearing seat; a limit threaded hole is formed in the side face of the T-shaped sliding block; the T-shaped sliding block is slidably embedded in the T-shaped sliding groove and is rotatably installed on the limiting threaded hole through the side surface of the limiting seat by the limiting bolt. Adopt T shape spout and T shape slider's cooperation, realize demountable installation, and realize spacing fixedly through spacing bolt and spacing screw hole's cooperation.

Further, a guide chute is vertically arranged on the hole wall of the installation jack; the side of the supporting disc is provided with a guiding sliding block which is embedded in the guiding sliding groove in a sliding way. The stability of the supporting disc is ensured by adopting the matching of the guide sliding groove and the guide sliding block, and the measurement accuracy is prevented from being reduced due to deflection.

The beneficial effects of the invention are as follows: the lower side of the pressure-bearing seat is detachably arranged on the limiting seat, and the lower end of the pressure-bearing rod is slidably inserted into the mounting jack of the pressure-bearing seat, so that the pressure-bearing seat with different measuring ranges can be conveniently replaced according to the field use requirement, and the pressure-bearing seat is flexible and convenient to use; the vertical force transmission structure is formed by the pressure bearing rod, the supporting disc and the dowel bar, so that the pressure sensor is subjected to force measurement, the pressure sensor collects pressure data and is collected by the A/D collection module to be provided for the controller, and the controller calculates the integral weight of the goods according to the collected data and sends weighing data to the receiving terminal through the wireless sending module.

Drawings

FIG. 1 is a schematic view of the front side structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the pressure-bearing seat according to the present invention;

fig. 3 is a schematic diagram of the electrical control principle created by the present invention.

Detailed Description

As shown in fig. 1-3, the weighing pallet of the present invention disclosed herein comprises: a supporting bottom plate 1, a bearing plate 2, a data acquisition box 8 and four pressure detection mechanisms; the pressure detection mechanism comprises an upper hinge seat 4, a pressure-bearing rod 5, a pressure-bearing seat 27 and a limit seat 12; the upper hinging seats 4 of the four pressure detection mechanisms are respectively and fixedly arranged at four vertex angles of the lower side surface of the bearing plate 2; the limit seats 12 of the four pressure detection mechanisms are respectively and fixedly arranged at four vertex angles of the upper side surface of the supporting bottom plate 1; the upper end of the pressure-bearing rod 5 is hinged on the upper hinging seat 4; a mounting jack 28 is vertically arranged on the upper side of the pressure-bearing seat 27; a guide hole 35 is vertically arranged at the bottom of the mounting jack 28; a sensor mounting cavity 34 is arranged at the lower side of the guide hole 35; a pressure sensor 10 is disposed within the sensor mounting cavity 34; a dowel bar 31 is vertically inserted in the guide hole 35 in a sliding manner, and the lower end of the dowel bar 31 is supported on the pressure sensor 10; a supporting disc 30 is arranged at the top of the dowel bar 31; the lower ends of the pressure-bearing rods 5 of the four pressure detection mechanisms are respectively vertically and slidably inserted into the mounting jacks 28 of the four pressure-bearing seats 27, and the lower ends of the pressure-bearing rods 5 are supported on the supporting disc 30; the lower side of the pressure-bearing seat 27 is detachably arranged on the limit seat 12; a power module, a controller, an A/D acquisition module and a wireless transmission module are arranged in the data acquisition box 8; the data lines of the four pressure sensors 10 are electrically connected with the A/D acquisition module; the controller is electrically connected with the A/D acquisition module and the wireless transmission module respectively; the power supply module supplies power to the controller, the A/D acquisition module, the pressure sensor 10 and the wireless transmission module respectively.

Further, the device also comprises a lifting mechanism; the lifting mechanism comprises an outer connecting rod 21, an inner connecting rod 20, an upturned rod 19 and an overhanging seat 15; a central column 11 is arranged in the middle of the upper side surface of the supporting bottom plate 1, and a limit cylinder 3 is arranged in the middle of the lower side surface of the bearing plate 2; one end of the outer connecting rod 21 is hinged with one end of the inner connecting rod 20 in a swinging manner; the other end of the inner connecting rod 20 is fixedly arranged with one end of the upwarp rod 19, and the inner connecting rod 20 and the upwarp rod 19 form 130 degrees; the fixed mounting points of the inner connecting rod 20 and the upturned rod 19 are hinged on the upper side of the supporting bottom plate 1 through the hinged supporting seat 18; the other end of the warping rod 19 is hinged on the outer side surface of the cantilever seat 15; a limiting circular groove 16 opposite to the limiting cylinder 3 is formed in the upper side surface of the cantilever seat 15, and a sliding hole 17 is formed in the lower side surface of the cantilever seat 15; the center post 11 is slidably inserted into the slide hole 17. A reinforcing sleeve 22 is sleeved on the outer connecting rod 21 in a sliding manner; a pressing handle 23 is mounted on the other end of the outer link 21.

Further, the peripheral edge of the supporting bottom plate 1 is provided with a wire slot 6; a socket 24 is arranged at each of the four top corners of the supporting base plate 1; a connecting wire 25 connected with a signal end and a power end of the pressure sensor 10 is arranged on the side surface of the pressure-bearing seat 27; a plug 26 inserted into the socket 24 is provided at the end of the connection wire 25; a cable 7 formed by combining a data wire and a power wire is arranged in the wire slot 6; one end of the cable 7 is correspondingly connected with the socket 24, and the other end is correspondingly connected with the power module and the A/D acquisition module in the data acquisition box 8. A T-shaped chute 13 is arranged on the limit seat 12; a T-shaped sliding block 33 is arranged on the lower side of the pressure-bearing seat 27; a limit threaded hole 9 is arranged on the side surface of the T-shaped sliding block 33; the T-shaped sliding block 33 is slidably embedded in the T-shaped sliding groove 13, and is rotatably arranged on the limit threaded hole 9 by passing through the side surface of the limit seat 12 through the limit bolt 14. A guide chute 29 is vertically arranged on the hole wall of the mounting jack 28; a guide slider 32 is slidably fitted in the guide chute 29 on the side surface of the support disk 30.

When the weighing tray is designed, the pressure sensor 10 is a general analog quantity pressure sensor, the controller is a 51 single chip microcomputer, the A/D acquisition module is a general A/D acquisition module, and the wireless transmission module is a Bluetooth module or a ZigBee wireless communication module.

When the weighing tray disclosed by the invention is used, if the pressure sensor 10 with a corresponding measuring range needs to be replaced, firstly, each limit bolt 14 is taken down, and the plug 26 is pulled out from the socket 24; then the outer connecting rod 21 swings to the outer side of a gap between the supporting bottom plate 1 and the bearing plate 2, and the lower sliding reinforcing sleeve 22 is sleeved on the hinging position; the cantilever seat 15 is lifted up by utilizing the lever principle through downward pressing of the pressing handle 23, the central column 11 slides along the sliding hole 17 at the moment, the limiting cylinder 3 is supported on the limiting circular groove 16, so that the bearing plate 2 is lifted up in the air, and the lower end of the bearing rod 5 is pulled out of the mounting jack 28 at the moment; the pressure-bearing seats 27 are pulled down from the limiting seats 12, the pressure-bearing seats 27 with other corresponding measuring ranges are replaced, the limiting bolts 14 are used for limiting and fixing again, and the outer connecting rod 21 is put down, so that the lower ends of the pressure-bearing rods 5 of the four pressure detection mechanisms are vertically and slidably inserted into the mounting jacks 28 of the four pressure-bearing seats 27 respectively; the reinforcing sleeve 22 is sleeved on the outer connecting rod 21 in a sliding manner, and the outer connecting rod 21 is folded into a gap between the supporting bottom plate 1 and the bearing plate 2; the pressure-bearing rod 5, the supporting disc 30 and the dowel bar 31 form a vertical force transmission structure, so that the pressure sensor 10 is subjected to force measurement, the pressure sensor 10 acquires pressure data and is acquired by the A/D acquisition module and provided for the controller, and the controller calculates the integral weight of goods according to the acquired data and sends weighing data to the receiving terminal through the wireless sending module; the receiving terminal consists of a microprocessor, a receiving wireless module connected with the microprocessor, a display screen and an alarm, and is not repeated in the prior art.

Claims

1. A weighing tray, characterized in that: comprises a supporting bottom plate (1), a bearing plate (2), a data acquisition box (8) and four pressure detection mechanisms; the pressure detection mechanism comprises an upper hinging seat (4), a pressure-bearing rod (5), a pressure-bearing seat (27) and a limiting seat (12); the upper hinging seats (4) of the four pressure detection mechanisms are respectively and fixedly arranged at four vertex angles of the lower side surface of the bearing plate (2); the limit seats (12) of the four pressure detection mechanisms are respectively and fixedly arranged at four vertex angles of the upper side surface of the supporting bottom plate (1); the upper end of the pressure-bearing rod (5) is hinged on the upper hinging seat (4); a mounting jack (28) is vertically arranged on the upper side of the pressure-bearing seat (27); a guide hole (35) is vertically arranged at the bottom of the hole of the installation jack (28); a sensor mounting cavity (34) is arranged at the lower side of the guide hole (35); a pressure sensor (10) is arranged in the sensor mounting cavity (34); a dowel bar (31) is vertically and slidably inserted into the guide hole (35), and the lower end of the dowel bar (31) is supported on the pressure sensor (10); a supporting disc (30) is arranged at the top of the dowel bar (31); the lower ends of the pressure-bearing rods (5) of the four pressure detection mechanisms are respectively vertically and slidably inserted into the mounting jacks (28) of the four pressure-bearing seats (27), and the lower ends of the pressure-bearing rods (5) are supported on the supporting disc (30); the lower side of the pressure-bearing seat (27) is detachably arranged on the limit seat (12); a power module, a controller, an A/D acquisition module and a wireless transmission module are arranged in the data acquisition box (8); the data lines of the four pressure sensors (10) are electrically connected with the A/D acquisition module; the controller is electrically connected with the A/D acquisition module and the wireless transmission module respectively; the power supply module is used for supplying power to the controller, the A/D acquisition module, the pressure sensor (10) and the wireless transmission module respectively.

2. The weighing tray of claim 1, wherein: the device also comprises a lifting mechanism; the lifting mechanism comprises an outer connecting rod (21), an inner connecting rod (20), an upturned rod (19) and an overhanging seat (15); a central column (11) is arranged in the middle of the upper side surface of the supporting bottom plate (1), and a limit column (3) is arranged in the middle of the lower side surface of the bearing plate (2); one end of the outer connecting rod (21) is hinged with one end of the inner connecting rod (20) in a swinging way; the other end of the inner connecting rod (20) is fixedly arranged with one end of the upwarp rod (19), and the inner connecting rod (20) and the upwarp rod (19) form 130 degrees; the fixed mounting points of the inner connecting rod (20) and the upturned rod (19) are hinged on the upper side of the supporting bottom plate (1) through the hinged supporting seat (18); the other end of the warping rod (19) is hinged on the outer side surface of the cantilever seat (15); a limiting round groove (16) opposite to the limiting cylinder (3) is formed in the upper side surface of the cantilever seat (15), and a sliding hole (17) is formed in the lower side surface of the cantilever seat (15); the center column (11) is slidably inserted into the sliding hole (17).

3. A weighing tray according to claim 2, characterized in that: a reinforcing sleeve (22) is sleeved on the outer connecting rod (21) in a sliding manner; a pressing handle (23) is mounted on the other end of the outer link (21).

4. The weighing tray of claim 1, wherein: wire grooves (6) are formed in the peripheral edges of the supporting bottom plate (1); the four vertex angles of the supporting bottom plate (1) are respectively provided with a socket (24); a connecting wire (25) connected with a signal end and a power end of the pressure sensor (10) is arranged on the side surface of the pressure-bearing seat (27); a plug (26) inserted into the socket (24) is arranged at the tail end of the connecting wire (25); a cable (7) formed by combining a data wire and a power wire is arranged in the wire slot (6); one end of the cable (7) is correspondingly connected with the socket (24), and the other end is correspondingly connected with the power module and the A/D acquisition module in the data acquisition box (8).

5. The weighing tray of claim 1, wherein: a T-shaped chute (13) is arranged on the limit seat (12); a T-shaped sliding block (33) is arranged at the lower side of the pressure-bearing seat (27); a limit threaded hole (9) is arranged on the side surface of the T-shaped sliding block (33); the T-shaped sliding block (33) is embedded in the T-shaped sliding groove (13) in a sliding mode, and the T-shaped sliding block is installed on the limiting threaded hole (9) through the side face of the limiting seat (12) in a screwed mode through the limiting bolt (14).

6. The weighing tray of claim 1, wherein: a guide chute (29) is vertically arranged on the hole wall of the installation jack (28); the side surface of the supporting disc (30) is provided with a guide sliding block (32) which is slidably embedded in the guide sliding groove (29).