CN115540990B - Digital weighing sensor - Google Patents
Digital weighing sensor Download PDFInfo
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- CN115540990B CN115540990B CN202211140593.2A CN202211140593A CN115540990B CN 115540990 B CN115540990 B CN 115540990B CN 202211140593 A CN202211140593 A CN 202211140593A CN 115540990 B CN115540990 B CN 115540990B
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- wiring
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- weighing sensor
- outer side
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a digital weighing sensor, and relates to the technical field of digital weighing sensors. The invention discloses a digital weighing sensor, which comprises a weighing sensor, wherein a protection circuit barrel is arranged on the outer side of the weighing sensor, a detector capable of detecting power line voltage and signal line current is arranged in the protection circuit barrel, and a wiring mechanism is arranged in the protection circuit barrel, and a clamping mechanism capable of automatically clamping wires is arranged in the wiring mechanism. According to the digital weighing sensor, the power supply wiring and the signal wiring are spliced in the wiring mechanism, then the wiring mechanism is contacted with the fixed contact connected in series with the detector, the detector detects whether the voltage at two ends of the power supply wire and the current at two ends of the signal wire meet the normal wiring, when the detection is unqualified, the wiring mechanism cannot rotate, the weighing sensor is not wired, and therefore the effects that the heavy sensor is scrapped due to miswiring can be avoided, and wiring safety is high are achieved.
Description
Technical Field
The invention relates to the technical field of digital weighing sensors, in particular to a digital weighing sensor.
Background
The development of digital weighing sensor and digital metering instrument technology has gradually become a new favor in the weighing technical field, the digital weighing sensor has the advantages of simple and efficient debugging, strong field adaptation capability and the like in the brand-new range of the field, a microprocessor is arranged in the digital weighing sensor, the instrument can monitor the output of each sensor on line and perform intelligent processing, the reliability of a weighing system is greatly improved, and the requirements such as large and small weight and unbalanced load detection which are difficult to realize by some analog sensors can be easily solved, wherein the digital weighing sensor is mainly divided into a four-wire system and a six-wire system.
The current four-wire system digital weighing sensor has two positive and negative wires of power and two wires of RS485 signal, and current four-wire system digital weighing sensor does not possess wiring protection function, and the positive misconnection of power is on other wires to can burn out the sensor under the condition that forms the return circuit with the power burden, lead to weighing sensor to scrap, manual work wiring inefficiency simultaneously, and the take out stitches inconvenient.
Disclosure of Invention
In order to achieve the purposes of avoiding scrapping of a heavy sensor caused by wrong wiring, having high wiring safety and being capable of quickly connecting and disconnecting the wiring and being convenient to use, the invention is realized by the following technical scheme: the digital weighing sensor comprises a weighing sensor, wherein a protection circuit barrel is arranged on the outer side of the weighing sensor, a detector capable of detecting power line voltage and signal line current is arranged in the protection circuit barrel, eight groups of fixed contacts are arranged in the protection circuit barrel, four groups of fixed contacts are connected with the weighing sensor in series and are connected with the detector in parallel, and the other four groups of fixed contacts are connected with the detector in series;
the automatic wire clamping device is characterized by further comprising a wire connecting mechanism arranged in the protective circuit barrel, wherein the wire connecting mechanism can automatically rotate, and a clamping mechanism capable of automatically clamping wires is arranged in the wire connecting mechanism.
Preferably, the wiring mechanism comprises a base arranged in the protective circuit cylinder, a rotating frame capable of automatically rotating is arranged on the outer side of the base, four groups of wiring cylinders are fixedly connected to the outer side of the rotating frame, electrodes are arranged in the wiring cylinders, an elastic electrode plate is fixedly connected to one side, close to the inside of the wiring cylinders, of each electrode, a movable contact capable of automatically sliding up and down is connected to the other side of each electrode in a sliding manner, and the clamping mechanism is arranged in the wiring cylinders.
Preferably, the fixture is including seting up at the inside screw hole of a wiring section of thick bamboo, the internally mounted of screw hole has the key shaft that can rotate automatically, the inside threaded connection of screw hole has the clamping screw, the inside of clamping screw has been seted up the shaft hole that can peg graft the key shaft, the slide bar is installed in the rotation of clamping screw's top, slide bar sliding connection is in the screw hole, one side that clamping screw was kept away from to the slide bar articulates there is the connecting rod, still including seting up the spout at a wiring section of thick bamboo inner wall, the inside sliding connection of spout has the clamp splice articulated mutually with the connecting rod.
Preferably, the inner wall of the protection circuit cylinder is provided with four groups of gear teeth, the four groups of gear teeth are not on the same plane, a gear capable of being meshed with the gear teeth is rotatably arranged on the outer side of the wiring cylinder, and the gear is fixedly connected with the key shaft.
Preferably, the clamping mechanism comprises a clamping groove formed in the wiring barrel, the clamping groove is connected with a clamping plate in a sliding mode, and the clamping plate can automatically slide.
Preferably, the inner wall of the protection circuit cylinder is provided with four groups of ejector blocks, four groups of ejector blocks are not on the same surface, four groups of ejector grooves are formed in the outer side of the wiring cylinder, four groups of ejector grooves correspond to the four groups of ejector blocks, ejector rods are connected to the inner parts of the ejector grooves in a sliding mode, the outer surfaces of the ejector rods are obliquely designed, the ejector rods are fixedly connected with clamping plates, reset springs are arranged between the clamping plates and the inner wall of the clamping grooves, and the ejector rods in the four groups of wiring cylinder correspond to the four groups of ejector blocks in position respectively.
Preferably, a cavity is formed in the rotating frame, a transmission inner ring capable of automatically rotating is arranged in the cavity, the transmission inner ring is in transmission connection with the movable contact through a transmission rope, and a top spring is arranged between the movable contact and the electrode.
Preferably, the inner wall of the transmission inner ring is provided with ratchets, a driving wheel driven by a motor is arranged on the outer side of the base, a pawl capable of swinging unidirectionally is annularly arranged on the outer side of the driving wheel and meshed with the ratchets, a heat dissipation fan is arranged on the outer side of the driving wheel, and a heat dissipation nozzle is annularly arranged on the outer side of the protection circuit barrel.
Preferably, the outside of base is provided with the mount, the heat dissipation chamber that can deposit the heat dissipation fan has been seted up to the inside of mount, the outside of mount is provided with the spool, the wire winding groove has been seted up to the outside of spool.
Preferably, the outside threaded connection of the protection circuit section of thick bamboo has the cover, the inside of cover has seted up the line hole, the inside in line hole is provided with the sealing washer. The beneficial effects of the invention are as follows:
1. according to the invention, the power supply wiring and the signal wiring are spliced in the wiring mechanism, then the wiring mechanism is contacted with the fixed contact connected in series with the detector, the detector detects whether the voltage at two ends of the power supply wire and the current at two ends of the signal wire meet the normal wiring, the wiring mechanism cannot rotate when the detection is failed, the weighing sensor is not wired, the wiring mechanism is connected with the detector in parallel and connected with the weighing sensor in series when the detection is qualified, the voltage at two ends of the weighing sensor of the detector is monitored in real time, when the voltage change is large, the detector controls the wiring mechanism to rotate, the weighing sensor is automatically powered off, and the operation is stable, so that the effects of avoiding scrapping of the heavy sensor due to wrong wiring and high wiring safety are achieved.
2. According to the invention, the power supply wiring and the signal wiring are spliced in the wiring mechanism, when wiring dislocation is detected, the wiring can be pulled out rapidly, and when the wiring is correct, the wiring mechanism rotates and the clamping mechanism clamps the wiring, so that manual independent wiring is not needed, and the effects of rapid wiring and wiring removal and convenient use are achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a protection mechanism according to the present invention;
FIG. 3 is a schematic diagram of a protective circuit cartridge of the present invention;
FIG. 4 is a schematic diagram of a wiring mechanism of the present invention;
FIG. 5 is a schematic top view of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic cross-sectional view of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic cross-sectional view of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic cross-sectional view of a wire barrel of the present invention;
FIG. 9 is a schematic diagram of a second embodiment of a protective circuit cartridge of the present invention;
FIG. 10 is a schematic view of a second embodiment of a wiring mechanism of the present invention;
fig. 11 is a schematic view of a second embodiment of the wire barrel of the present invention.
In the figure: 1. a weighing sensor; 2. a protective circuit tube; 3. a cylinder cover; 4. a seal ring; 5. a heat dissipation nozzle; 6. a detector; 7. a fixed contact; 8. a base; 9. a rotating frame; 10. a wire connecting cylinder; 11. an elastic electrode sheet; 12. an electrode; 13. a movable contact; 14. a top spring; 15. a transmission inner ring; 16. a driving wheel; 17. a pawl; 18. a heat dissipation fan; 19. a fixing frame; 20. a spool; 21. gear teeth; 22. a gear; 23. a key shaft; 24. clamping a screw; 25. a slide bar; 26. a connecting rod; 27. clamping blocks; 28. a top block; 29. a top groove; 30. a push rod; 31. a clamping plate; 32. and a return spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
Referring to fig. 1-8, a digital weighing sensor includes a weighing sensor 1, a protection circuit barrel 2 is disposed at an outer side of the weighing sensor 1, a detector 6 capable of detecting a power line voltage and a signal line current is disposed inside the protection circuit barrel 2, eight groups of fixed contacts 7 are disposed inside the protection circuit barrel 2, wherein four groups of fixed contacts 7 are connected in series with the weighing sensor 1 and are connected in parallel with the detector 6, and the other four groups of fixed contacts 7 are connected in series with the detector 6;
the automatic wire clamping device also comprises a wire connecting mechanism arranged inside the protective circuit barrel 2, wherein the wire connecting mechanism can automatically rotate, and a clamping mechanism capable of automatically clamping wires is arranged inside the wire connecting mechanism.
When the wire is connected, the power supply wire and the signal wire are spliced in the wire connecting mechanism, at the moment, the wire connecting mechanism is contacted with the fixed contact 7 connected with the detector 6 in series, the detector 6 is internally provided with an existing current sensor and a voltage sensor, and a control main board for processing signals is also arranged, the voltage sensor detects the voltages at two ends of the power supply wire, the current sensor detects the currents at two ends of the signal wire, the control main board judges whether the detected voltages and currents are in a normal wire connecting range, when the detection is unqualified, the wire connecting mechanism cannot rotate, the weighing sensor 1 cannot finish wire connection, the weighing sensor 1 can be prevented from burning out, and a wire connection error can be prompted;
when the detection is qualified, the wiring mechanism rotates, the wiring mechanism is contacted with the fixed contact 7 which is connected with the detector 6 in parallel and connected with the weighing sensor 1 in series, at the moment, the weighing sensor 1 finishes wiring, meanwhile, the detector 6 monitors whether the voltage of the wiring of the weighing sensor 1 is stable in real time, when the voltage change is large and the weighing sensor 1 is easy to burn out, the detector 6 controls the wiring mechanism to rotate again, the wiring mechanism is contacted with the fixed contact 7 which is connected with the detector 6 in series again, the weighing sensor 1 is automatically powered off, and the operation is stable;
because at the beginning, the connecting wire is simply pegged graft in wiring mechanism, when discovery wiring mistake, can carry out the wiring fast and change, convenient to use, when wiring mechanism rotates, fixture centre gripping simultaneously the wiring, when making wiring and weighing sensor 1 be connected, keep stable, prevent that the wiring from droing, connect stably.
As shown in fig. 2-4, in some embodiments, the wiring mechanism includes a base 8 installed inside the protection circuit barrel 2, a rotating frame 9 capable of automatically rotating is installed at the outer side of the base 8, four groups of wiring barrels 10 are fixedly connected at the outer side of the rotating frame 9, electrodes 12 are arranged inside the wiring barrels 10, one side, close to the inside of the wiring barrels 10, of each electrode 12 is fixedly connected with an elastic electrode plate 11, the other side of each electrode 12 is slidably connected with a movable contact 13 capable of automatically sliding up and down, and the clamping mechanism is arranged inside the wiring barrels 10.
Through the setting of four sets of wiring barrels 10, can peg graft anodal power cord, negative pole power cord, anodal signal line and negative pole signal line respectively, when the wiring peg graft in wiring barrel 10, elastic electrode piece 11 carries out preliminary centre gripping to the line, detect stably, after the plug wire is accomplished, detector 6 detects line voltage and electric current, after detecting qualified, movable contact 13 rises relative electrode 12, movable contact 13 keeps away from fixed contact 7, make movable contact 13 do not influence wiring mechanism rotation, revolving rack 9 rotates this moment, revolving rack 9 drives four sets of wiring barrels 10 synchronous rotation, four sets of wiring barrels 10 drive four sets of movable contact 13 and remove to four other fixed contact 7 positions, then control movable contact 13 resets, movable contact 13 is contacted with fixed contact 7, the wiring is linked together with weighing sensor 1 through elastic electrode piece 11 at this moment, electrode 12, movable contact 13 and fixed contact 7, accomplish the wiring.
As shown in fig. 8, in some embodiments, the clamping mechanism includes a threaded hole formed in the interior of the wire holder 10, a key shaft 23 capable of automatically rotating is mounted in the threaded hole, a clamping screw 24 is connected to the threaded hole in a threaded manner, a shaft hole capable of inserting the key shaft 23 is formed in the clamping screw 24, a sliding rod 25 is rotatably mounted at the top of the clamping screw 24, the sliding rod 25 is slidably connected in the threaded hole, a connecting rod 26 is hinged to one side of the sliding rod 25 away from the clamping screw 24, and the clamping mechanism further includes a sliding groove formed in the inner wall of the wire holder 10, and a clamping block 27 hinged to the connecting rod 26 is slidably connected in the sliding groove.
After the detection is qualified, the key shaft 23 is controlled to rotate, the key shaft 23 drives the clamping screw 24 to rotate through the shaft hole, the clamping screw 24 moves under the action of the threaded hole, the clamping screw 24 drives the slide bar 25 to slide, the slide bar 25 drives the connecting rod 26 to swing, the connecting rod 26 drives the clamping block 27 to slide, the clamping block 27 clamps wiring, the wiring is prevented from loosening, automatic wiring is completed, and the wiring is enabled to be more stable through thread self-locking.
As shown in fig. 3, in some embodiments, four sets of gear teeth 21 are provided on the inner wall of the protection circuit barrel 2, none of the four sets of gear teeth 21 is on the same plane, a gear 22 capable of meshing with the gear teeth 21 is rotatably installed on the outer side of the wiring barrel 10, and the gear 22 is fixedly connected with a key shaft 23.
After the detection is qualified, the rotating frame 9 rotates, the rotating frame 9 drives the wiring cylinder 10 to rotate, the wiring cylinder 10 drives the gear 22 to rotate, when the gear 22 rotates to the gear tooth 21 position, the gear 21 enables the gear 22 to rotate, the gear 22 drives the key shaft 23 to rotate, the key shaft 23 enables the clamping block 27 to clamp wires, the wiring mechanism rotates and simultaneously can clamp wires automatically, an additional driving mechanism is not needed, and the structure is compact.
Because the four groups of gear teeth 21 are not on the same plane, the transmission of the four groups of gears 22 and the gear teeth 21 is not affected, and the transmission is stable.
As shown in fig. 6 and 7, in some embodiments, a cavity is formed in the rotating frame 9, a transmission inner ring 15 capable of automatically rotating is installed in the cavity, the transmission inner ring 15 is in transmission connection with the movable contact 13 through a transmission rope, and a top spring 14 is arranged between the movable contact 13 and the electrode 12.
When the rotating frame 9 needs to rotate, the transmission inner ring 15 is controlled to rotate, the transmission inner ring 15 firstly drives the movable contact 13 to be far away from the fixed contact 7 through a transmission rope, the movable contact 13 compresses the top spring 14, when the movable contact 13 cannot move, the transmission inner ring 15 drives the wiring cylinder 10 to rotate with the rotating frame 9 through the movable contact 13, and when the switching is carried out, the movable contact 13 can be automatically made to be far away from the fixed contact 7 firstly, an additional driving mechanism is not needed to control the movable contact 13, and the structure is compact;
when the wiring cylinder 10 rotates to the position of the fixed contact 7 connected with the detector 6 in parallel and connected with the weighing sensor 1 in series, the transmission inner ring 15 is powered off to stop rotating at the moment, the top spring 14 drives the movable contact 13 to descend, and the movable contact 13 automatically contacts with the fixed contact 7, so that the connection is stable.
As shown in fig. 7, in some embodiments, the inner wall of the transmission inner ring 15 is provided with ratchet teeth, the outer side of the base 8 is provided with a driving wheel 16 driven by a motor, the outer side of the driving wheel 16 is annularly provided with a unidirectional swinging pawl 17, the pawl 17 can be meshed with the ratchet teeth, the outer side of the driving wheel 16 is provided with a heat dissipation fan 18, and the outer side of the protection circuit barrel 2 is annularly provided with a heat dissipation nozzle 5.
When the wiring cylinder 10 needs to be rotated to the position of the fixed contact 7 which is connected with the detector 6 in parallel and is connected with the weighing sensor 1 in series, at the moment, the driving wheel 16 drives the transmission inner ring 15 to rotate through the pawl 17 and the ratchet, the transmission inner ring 15 drives the wiring cylinder 10 to rotate, after automatic wiring is completed, the weighing sensor 1 operates, at the moment, the driving wheel 16 is controlled to rotate reversely, the driving wheel 16 drives the pawl 17 to rotate under the action of the ratchet, the rotating frame 9 cannot rotate, the transmission inner ring 15 cannot rotate, the driving wheel 16 drives the heat dissipation fan 18 to continuously rotate, the heat dissipation fan 18 blows air, wind force is sprayed outside the weighing sensor 1 through the heat dissipation nozzle 5, and because the operation of the weighing sensor 1 can generate a large amount of heat, dust accumulated on the surface easily enters the inside of the weighing sensor 1, so that the weighing sensor 1 is damaged, heat dissipation and ash removal are required when the weighing sensor 1 operates, and the service life of the weighing sensor 1 is prolonged;
meanwhile, as the driving wheel 16 rotates, the driving wheel 16 does not give the rotation limiting force to the transmission inner ring 15, so that the movable contact 13 can be contacted with the fixed contact 7 more stably, and the transmission is stable;
because the heat dissipation nozzle 5 is in a bending design, and the heat dissipation nozzle 5 continuously blows, no dust or water vapor enters the protection circuit barrel 2, and the operation is stable.
As shown in fig. 4 and 7, in some embodiments, a fixing frame 19 is disposed on the outer side of the base 8, a heat dissipation cavity capable of storing the heat dissipation fan 18 is formed inside the fixing frame 19, a winding shaft 20 is disposed on the outer side of the fixing frame 19, and a winding groove is formed on the outer side of the winding shaft 20.
The rotating frame 9 rotates to drive the four groups of wiring barrels 10 to synchronously rotate, the clamping mechanism clamps wiring while the wiring barrels 10 rotate, meanwhile, the wiring barrels 10 rotate relative to the winding shafts 20, the wiring barrels 10 drive the wiring to rotate relative to the winding shafts 20, the wiring is wound in a winding groove, wiring stability can be further improved, the wiring is prevented from being pulled and fallen, and connection stability is high;
in summary, the four sets of gear teeth 21 are not on the same plane, so the wire connecting cylinder 10 can rotate for multiple circles, and the four sets of gears 22 and the four sets of gear teeth 21 are not mutually affected, so that the wire connection can be more stably wound on the wire winding shaft 20, and the wire connection is more stable.
As shown in fig. 1, in some embodiments, a cylinder cover 3 is screwed on the outer side of the protection circuit cylinder 2, a wire hole is formed in the cylinder cover 3, and a sealing ring 4 is arranged in the wire hole.
When the cylinder cover 3 is unscrewed and connected, the connecting wire passes through the sealing ring 4 firstly, then the connecting wire is separated, after the connecting wire is connected, the cylinder cover 3 is screwed on the protective circuit cylinder 2, and the cylinder cover 3 enables the internal structure of the protective circuit cylinder 2 to be protected inside, so that the operation is more stable.
The second embodiment is different from the first embodiment in that a second embodiment of the clamping mechanism is provided;
referring to fig. 9-11, the clamping mechanism includes a clamping groove formed in the inside of the wire barrel 10, and a clamping plate 31 is slidably connected to the inside of the clamping groove, and the clamping plate 31 can automatically slide.
While the wire barrel 10 rotates, the control clamp plate 31 slides, and the clamp plate 31 clamps the wire.
As shown in fig. 9-11, in some embodiments, four groups of ejector blocks 28 are disposed on the inner wall of the protection circuit barrel 2, the four groups of ejector blocks 28 are not on the same surface, four groups of ejector grooves 29 are formed on the outer sides of the four groups of wiring barrels 10, the four groups of ejector grooves 29 correspond to the four groups of ejector blocks 28, ejector rods 30 are slidably connected inside the ejector grooves 29, the outer surfaces of the ejector rods 30 are obliquely designed, the ejector rods 30 are fixedly connected with clamping plates 31, return springs 32 are disposed between the clamping plates 31 and the inner walls of the clamping grooves, and the ejector rods 30 inside the four groups of wiring barrels 10 correspond to the positions of the four groups of ejector blocks 28 respectively.
When the rotating frame 9 rotates, the wire connecting cylinder 10 is driven to rotate, the wire connecting cylinder 10 drives the ejector rod 30 to rotate, when the ejector rod 30 rotates to the position of the ejector block 28, the ejector block 28 pushes the ejector rod 30 to slide, the ejector rod 30 drives the clamping plate 31 to slide, and the clamping plate 31 clamps wires, so that the wire connecting cylinder 10 can clamp the wires while rotating, the clamping plate 31 gives a reaction force to the ejector rod 30 while clamping wires, the ejector rod 30 tightly pushes against the ejector block 28, and a certain limiting force is provided for the wire connecting cylinder 10, so that the wires of the wire connecting cylinder 10 are more stable;
when the weighing sensor 1 is used, the voltage is unstable, the detector 6 controls the wiring mechanism to reset, the wiring cylinder 10 rotates, the ejector rod 30 is far away from the ejector block 28, the reset spring 32 drives the clamping plate 31 to reset, the clamping plate 31 releases the wiring, and the wiring can be easily disconnected during protection, so that the use safety is higher compared with that of the clamping mechanism in the first embodiment;
because the top grooves 29 are divided into four groups, and the ejector rods 30 in the four groups of wiring barrels 10 respectively correspond to the positions of the four groups of ejector blocks 28, the four groups of ejector blocks 28 are not on the same surface, the wiring barrels 10 are not mutually affected when rotating, and the transmission is stable.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A digital weighing cell comprising a weighing cell (1), characterized in that: the automatic weighing device is characterized in that a protection circuit barrel (2) is arranged on the outer side of the weighing sensor (1), a detector (6) capable of detecting the voltage of a power line and the current of a signal line is arranged in the protection circuit barrel (2), eight groups of fixed contacts (7) are arranged in the protection circuit barrel (2), four groups of fixed contacts (7) are connected with the weighing sensor (1) in series and are connected with the detector (6) in parallel, and the other four groups of fixed contacts (7) are connected with the detector (6) in series;
the automatic wire clamping device is characterized by further comprising a wire connecting mechanism arranged in the protective circuit barrel (2), wherein the wire connecting mechanism can automatically rotate, and a clamping mechanism capable of automatically clamping wires is arranged in the wire connecting mechanism;
the wiring mechanism comprises a base (8) arranged in the protective circuit barrel (2), a rotating frame (9) capable of automatically rotating is arranged on the outer side of the base (8), four groups of wiring barrels (10) are fixedly connected to the outer side of the rotating frame (9), electrodes (12) are arranged in the wiring barrels (10), an elastic electrode plate (11) is fixedly connected to one side, close to the inside of the wiring barrels (10), of each electrode (12), a movable contact (13) capable of automatically sliding up and down is connected to the other side of each electrode (12) in a sliding mode, and the clamping mechanism is arranged in the wiring barrels (10);
the clamping mechanism comprises a threaded hole formed in the wiring cylinder (10), a key shaft (23) capable of automatically rotating is arranged in the threaded hole, a clamping screw (24) is connected with the threaded hole in a threaded mode, a shaft hole capable of being inserted into the key shaft (23) is formed in the clamping screw (24), a sliding rod (25) is rotatably arranged at the top of the clamping screw (24), the sliding rod (25) is slidably connected in the threaded hole, a connecting rod (26) is hinged to one side, away from the clamping screw (24), of the sliding rod (25), and the clamping mechanism further comprises a sliding groove formed in the inner wall of the wiring cylinder (10), and a clamping block (27) hinged to the connecting rod (26) is slidably connected in the sliding groove.
2. The digital weighing sensor according to claim 1, wherein four groups of gear teeth (21) are arranged on the inner wall of the protective circuit cylinder (2), none of the four groups of gear teeth (21) are on the same plane, a gear (22) capable of being meshed with the gear teeth (21) is rotatably arranged on the outer side of the wiring cylinder (10), and the gear (22) is fixedly connected with the key shaft (23).
3. A digital weighing cell according to claim 1, characterized in that said clamping means comprises a clamping groove provided in the interior of the wire holder (10), said clamping groove being internally slidingly connected with a clamping plate (31), said clamping plate (31) being capable of sliding automatically.
4. A digital weighing sensor according to claim 3, characterized in that the inner wall of the protective circuit cylinder (2) is provided with four groups of ejector blocks (28), the four groups of ejector blocks (28) are not on the same surface, four groups of ejector grooves (29) are formed in the outer side of the wiring cylinder (10), the four groups of ejector grooves (29) correspond to the four groups of ejector blocks (28), ejector rods (30) are slidably connected in the ejector grooves (29), the outer surface of the ejector rods (30) is obliquely designed, the ejector rods (30) are fixedly connected with clamping plates (31), return springs (32) are arranged between the clamping plates (31) and the inner walls of the clamping grooves, and the ejector rods (30) in the four groups of the wiring cylinder (10) correspond to the positions of the four groups of ejector blocks (28) respectively.
5. The digital weighing sensor according to claim 1, characterized in that a cavity is formed in the rotating frame (9), a transmission inner ring (15) capable of automatically rotating is arranged in the cavity, the transmission inner ring (15) is in transmission connection with the movable contact (13) through a transmission rope, and a top spring (14) is arranged between the movable contact (13) and the electrode (12).
6. The digital weighing sensor according to claim 5, wherein the inner wall of the transmission inner ring (15) is provided with ratchets, a driving wheel (16) driven by a motor is installed on the outer side of the base (8), a unidirectional swinging pawl (17) is annularly arranged on the outer side of the driving wheel (16), the pawl (17) can be meshed with the ratchets, a heat dissipation fan (18) is arranged on the outer side of the driving wheel (16), and a heat dissipation nozzle (5) is annularly arranged on the outer side of the protection circuit barrel (2).
7. The digital weighing sensor according to claim 6, wherein a fixing frame (19) is arranged on the outer side of the base (8), a heat dissipation cavity capable of storing a heat dissipation fan (18) is formed in the fixing frame (19), a winding shaft (20) is arranged on the outer side of the fixing frame (19), and a winding groove is formed in the outer side of the winding shaft (20).
8. A digital weighing cell according to any one of claims 1-7, characterized in that the outside of the protective circuit cartridge (2) is screwed with a cartridge cover (3), a wire hole is provided in the interior of the cartridge cover (3), and a sealing ring (4) is provided in the interior of the wire hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211140593.2A CN115540990B (en) | 2022-09-20 | 2022-09-20 | Digital weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211140593.2A CN115540990B (en) | 2022-09-20 | 2022-09-20 | Digital weighing sensor |
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| Publication Number | Publication Date |
|---|---|
| CN115540990A CN115540990A (en) | 2022-12-30 |
| CN115540990B true CN115540990B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211140593.2A Active CN115540990B (en) | 2022-09-20 | 2022-09-20 | Digital weighing sensor |
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| CN115036903A (en) * | 2022-05-23 | 2022-09-09 | 江西众加利高科技股份有限公司 | Digital weighing sensor misconnection prevention protection circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012233868A (en) * | 2011-04-19 | 2012-11-29 | Teac Corp | Load cell unit |
| CN102889916A (en) * | 2011-07-22 | 2013-01-23 | 深圳市杰曼科技有限公司 | Wireless digital weighing sensor with zero power consumption in sleep mode |
| CN112050919A (en) * | 2020-09-08 | 2020-12-08 | 西安致开工业自动化工程有限公司 | Digital weighing sensor based on wireless charging technology |
| CN115036903A (en) * | 2022-05-23 | 2022-09-09 | 江西众加利高科技股份有限公司 | Digital weighing sensor misconnection prevention protection circuit |
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