Multifunctional meter counter
The three-impeller rotation speed is detected by an optocoupler sensor and a slot-type optocoupler circuit. Combined with the digital display module and the operation module, the problem of inaccurate counting of the mechanical meter counter is solved, and the design of an accurate counting and multifunctional meter counter is realized, which improves the measurement accuracy and practicality.
Patent Information
- Application Number
- CN202423081193.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Mechanical meter counters have problems such as inaccurate counting, severe wear, and inaccurate zero point adjustment, which lead to large measurement errors.
Optocoupler sensors and slot-type optocoupler circuits are used to detect the rotation speed of the three-impeller. The digital display module and operation module are combined to achieve accurate counting. The alarm module issues a warning when the set value is reached. The indicator light module displays the status, and the MCU system and power module provide power support.
The meter counter is accurate and multifunctional, can alarm when the set value is reached, and the indicator light module displays the status. It provides multiple unit options, which improves the practicality and measurement accuracy of the product.
Smart Images
Figure CN223485113U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of meter counter technology, and in particular to a multifunctional meter counter. Background Technology
[0002] A mechanical meter counter is a device that measures length through mechanical transmission and a counting mechanism. Common mechanical meter counters typically employ a mechanical screw drive, where a counting wheel is pulled to generate digital readings. This type of meter counter is simple in structure, portable, and easy to read. It does not require an external power source and is often used for contour measurement and static measurement.
[0003] The working principle of a meter counter is to measure distance by rolling gears. Factors such as gear wear, uneven surface of the object being measured, and inaccurate zero-point adjustment can all lead to measurement errors. Therefore, the applicant has made a useful design and found a way to solve the above problems. The technical solution to be introduced below was developed in this context. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the traditional meter counter design and provide a product with accurate counting and multiple functions.
[0005] In order to solve the above problems, the present invention adopts the following technical solutions.
[0006] A multifunctional meter counter includes a base and an end cap covering the base. The base has a rotating shaft with a three-impeller. The base also has a first circuit board with an optocoupler sensor for detecting the three impellers. The first circuit board has an alarm module for activating when the count value equals or exceeds a set value. The end cap has an angled window for easy observation by the user. The window has a second circuit board electrically connected to the first circuit board via a flexible cable. The second circuit board has a groove to allow the three impellers to rotate. The second circuit board has a digital display module for displaying the count value. The second circuit board also has an operation module for zeroing and switching between metric, code, and speed systems. The second circuit board also has an indicator light module for warning or indicating the current status.
[0007] Preferably, the base has support members on both sides for supporting the rotating shaft, and the rotating shaft has wheels at both ends.
[0008] Preferably, the support member has an inclined support surface for supporting the second circuit board, and the support surface has a positioning post that passes through the second circuit board.
[0009] Preferably, the optocoupler sensor is provided with two slotted optocoupler circuits for distinguishing the rotation direction of the three impellers and measuring the rotation speed.
[0010] Preferably, the digital display module includes at least two three-digit LED displays and a U3 control chip, wherein the LED displays are electrically connected to the U3 control chip.
[0011] Preferably, the operation module includes an up button, a down button, left and right buttons, a setting button, a reset button, and a mode switching button, and is located below the digital tube.
[0012] Preferably, the indicator module includes a forward / reverse indicator, an alarm indicator, a power indicator, a metric indicator, a code indicator, and a speed indicator. The forward / reverse indicator, alarm indicator, and power indicator are located on one side of the digital display module, while the metric indicator, code indicator, and speed indicator are located on the other side of the digital display module.
[0013] Preferably, the second circuit board is equipped with an MCU system, and the first circuit board is equipped with a power module for providing power to the MCU system, the indicator module, the digital display module, the alarm module, and the optocoupler sensor. The power module is equipped with a Type-C interface.
[0014] Preferably, the alarm module is configured as a buzzer.
[0015] Beneficial effects:
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] (1) This utility model uses an optical coupler sensor and sets two slotted optical coupler circuits to accurately detect the rotation speed and radius of the three-blade wheel, thereby accurately displaying the distance the wheel rolls. Moreover, there is no wear between the three-blade wheel and the optical coupler sensor, which overcomes the technical problems mentioned in the background art and makes the product have the advantage of accurate counting.
[0018] (2) This utility model provides zeroing and switching between metric, code, and speed through the operation module, and can set values. When the set value is reached, the alarm module is activated to warn the user, which provides convenience for cutting the object being measured. The indicator light module makes it easy for the user to understand whether the product is in normal start-up, alarm state, forward or reverse rotation, and whether the measurement unit is metric, code, or speed. Through the above design, the product has the advantages of being multifunctional and highly practical. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a multifunctional meter counter according to the present invention;
[0020] Figure 2 This is a schematic diagram of the internal structure of a multifunctional meter counter according to this utility model;
[0021] Figure 3This is a logic diagram of a multifunctional meter counter according to the present invention;
[0022] Figure 4 This is a circuit diagram of the first circuit board of a multifunctional meter counter according to this utility model.
[0023] Figure 5 The circuit of the second circuit board of the multifunctional meter counter of this utility model Figure 1 ;
[0024] Figure 6 The circuit of the second circuit board of the multifunctional meter counter of this utility model Figure 2 ;
[0025] The correspondence between the labels and component names in the attached figures is as follows:
[0026] Reference numerals: 1. Base; 2. End cap; 3. Shaft; 4. First circuit board; 5. Second circuit board;
[0027] 11. Support component; 12. Support surface; 13. Positioning post;
[0028] 21. Window;
[0029] 31. Three-leaf impeller; 32. Wheel;
[0030] 41. Optocoupler sensor; 42. Alarm module;
[0031] 51. Groove; 52. Digital display module; 53. Operation module; 54. Indicator light module; 55. MCU system; 56. Power supply module;
[0032] 521. Digital tube display; 522. U3 control chip;
[0033] 531. Up button; 532. Down button; 533. Left and right buttons; 534. Settings button; 535. Reset and mode switch button;
[0034] 541. Forward / Reverse Indicator Light; 542. Alarm Indicator Light; 543. Power Indicator Light; 544. Metric Indicator Light; 545. Code Indicator Light; 546. Speed Indicator Light;
[0035] 561. Type-C interface. Detailed Implementation
[0036] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0039] Reference example Figures 1 to 6 A multifunctional meter counter includes a base 1 and an end cap 2 covering the base 1. The base 1 has a rotating shaft 3 with a three-impeller 31. The base 1 has a first circuit board 4 with an optocoupler sensor 41 for detecting the three-impeller 31. The first circuit board 4 has an alarm module 42 for activating when the count value is equal to or exceeds a set value. The end cap 2 has an inclined window 21 for easy observation by the user. The window 21 has a second circuit board 5, which is electrically connected to the first circuit board 4 via a flexible connecting wire. The second circuit board 5 has a groove 51 to allow the three-impeller 31 to rotate. The second circuit board 5 has a digital display module 52 for displaying the value. The second circuit board 5 also has an operation module 53 for zeroing and switching between metric, code, and speed systems. The second circuit board 5 also has an indicator light module 54 for warning or indicating the current status.
[0040] It is worth mentioning that the base 1 has support members 11 on both sides for supporting the rotating shaft 3. The rotating shaft 3 has wheels 32 at both ends. The wheels 32 are in contact with the object being measured. The wheels 32 are fixed to the rotating shaft 3 by fastening screws. Different wheels 32 or different diameters of wheels 32 can be replaced according to the size of the object being measured and the working environment.
[0041] It is worth mentioning that the support member 11 is provided with an inclined support surface 12 for supporting the second circuit board 5. The support surface 12 is provided with a positioning post 13, which passes through the second circuit board 5. The positioning post 13 facilitates the quick assembly of the second circuit board 5 into the designated position and plays a role in preventing mistaken identity.
[0042] It is worth mentioning that the optocoupler sensor 41 is equipped with two slot-type optocoupler circuits, which are used to distinguish the rotation direction of the three-bladed wheel 31 and measure the rotation speed. The slot-type optocoupler circuit is composed of an infrared emitting tube and an infrared receiving tube. When the electrical signal at the input terminal drives the light-emitting diode (LED) to emit light, the light signal is received by the receiving tube and converted into photocurrent. After amplification, it is output, thereby completing the electrical-optical-electrical conversion. This conversion process has a good isolation effect, which can prevent mutual interference between the input and output circuits and improve the anti-interference capability and signal-to-noise ratio of the circuit.
[0043] It is worth mentioning that the digital display module 52 includes at least two three-digit LED displays 521 and a U3 control chip 522. The LED displays 521 and the U3 control chip 522 are electrically connected. There are a total of six LED displays 521, which can display a range of -9999.9 to 9999.9, accurate to one decimal place. The signal terminals 10, 12, 13, 14, 15, 16, and 17 of the MCU system 55 are electrically connected to the signal terminals A, B, C, D, E, F, G, and DP of the two LED displays 521. The power output terminal of the U3 control chip 522 is electrically connected to the LED displays 521, and the power input terminal of the U3 control chip 522 is electrically connected to the MCU system 55.
[0044] It is worth mentioning that the operation module 53 includes an up button 531, a down button 532, left and right buttons 533, a setting button 534, a reset and mode switching button 535, and is located below the digital tube 521;
[0045] Press and hold the reset and mode switch button 535 for three seconds to clear the value; press and hold the reset and mode switch button 535 briefly to switch between metric, code, and speed modes.
[0046] Press and hold the setting key 534 for three seconds to enter the setting interface. If the current digital tube 521 has a value, you can enter the setting state. After exiting, the current value will be displayed. If the current unit is metric, the value will be set in metric; if the current unit is coded, the value will be set in coded. After entering the setting interface, the 6-digit digital tube 521 will display the preset value. At this time, the first digit of the rightmost digital tube 521 will flash, indicating that this digit can be adjusted. Press the up key 531 or the down key 532 to adjust the value range from 0 to 9. Press the left and right keys 533, and the second digit of the rightmost digital tube 521 will flash. After the value is set, press the setting key 534 briefly or do not operate for five seconds to save the adjusted value and exit the setting interface. Set the value through the above operation.
[0047] When the up key 531 and the down key 532 are pressed at the same time, the forward or reverse rotation is switched. After the switch is successful, the forward or reverse indicator light 541 will light up or turn off. When the light is on, it is forward rotation, and when it is off, it is reverse rotation.
[0048] Press the up button 531, down button 532, and left / right button 533 simultaneously to enter the wheel changing interface. The first digit of the rightmost digital tube 521 will flash, indicating that this digit can be adjusted. Press the up button 531 or the down button 532 to adjust the value range from 0 to 9. Press the left / right button 533, and the second digit of the rightmost digital tube 521 will flash. After adjustment, press the setting button 534 briefly or do not operate for five seconds to save the adjusted value and exit the setting state. Through the above design, the value displayed when the wheel 32 rotates once is adjusted according to the diameter of the wheel 32.
[0049] It is worth mentioning that the indicator module 54 includes a forward / reverse indicator 541, an alarm indicator 542, a power indicator 543, a metric indicator 544, a code indicator 545, and a speed indicator 546. The forward / reverse indicator 541, alarm indicator 542, and power indicator 543 are located on one side of the digital display module 52, while the metric indicator 544, code indicator 545, and speed indicator 546 are located on the other side. When 5V power is supplied to the first circuit board 4 and the second circuit board 5, the power indicator 543 displays green. When the system is switched to metric mode, the metric indicator 544 lights up; when the system is switched to code mode, the code indicator 545 lights up; and when the system is switched to speed mode, the speed indicator 546 lights up.
[0050] It is worth mentioning that the second circuit board 5 is equipped with an MCU system 55, and the first circuit board 4 is equipped with a power module 56, which is used to provide power to the MCU system 55, the indicator module, the digital display module 52, the alarm module 42, and the optocoupler sensor 41. The power module 56 is equipped with a type C interface 561, which provides 5V power to the power module 56. The power module 56 provides a stable power supply to the first circuit board 4 and the second circuit board 5.
[0051] It is worth mentioning that the alarm module 42 is set as a buzzer. When the value of the digital tube 521 exceeds the set value, the buzzer will start and sound. At the same time, the alarm indicator 542 will sound to remind the user.
[0052] The above design scheme enables the product to achieve the advantages of accurate counting, multifunctionality, and high practicality.
[0053] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. A multifunctional meter counter, comprising a base (1) and an end cap (2) covering the base (1), wherein the base (1) is provided with a rotating shaft (3), characterized in that: The rotating shaft (3) is provided with a three-impeller (31), and the base (1) is provided with a first circuit board (4). The first circuit board (4) is provided with an optocoupler sensor (41) for detecting the three-impeller (31). The first circuit board (4) is equipped with an alarm module (42) for activating when the count value is equal to or exceeds a set value; The end cap (2) is provided with an inclined window (21) for easy observation by the user. The window (21) is provided with a second circuit board (5). The second circuit board (5) is electrically connected to the first circuit board (4) through a flexible connecting wire. The second circuit board (5) is provided with a groove (51) to allow the three-leaf wheel (31) to rotate. The second circuit board (5) is provided with a digital display module (52) for displaying values. The second circuit board (5) is also provided with an operation module (53) for zeroing and switching between metric, code, and speed systems; The second circuit board (5) is also provided with an indicator light module (54) for warning or indicating the current status.
2. The multifunctional meter counter according to claim 1, characterized in that: The base (1) has support members (11) on both sides for supporting the rotating shaft (3), and the rotating shaft (3) has wheels (32) at both ends.
3. The multifunctional meter counter according to claim 2, characterized in that: The support member (11) is provided with an inclined support surface (12) for supporting the second circuit board (5), and the support surface (12) is provided with a positioning post (13) that passes through the second circuit board (5).
4. The multifunctional meter counter according to claim 1, characterized in that: The optocoupler sensor (41) is equipped with two slotted optocoupler circuits for distinguishing the rotation direction of the three-bladed impeller (31) and measuring its rotation speed.
5. The multifunctional meter counter according to claim 1, characterized in that: The digital display module (52) includes at least two three-digit LED displays (521) and a U3 control chip (522), wherein the LED displays (521) and the U3 control chip (522) are electrically connected.
6. The multifunctional meter counter according to claim 5, characterized in that: The operation module (53) includes an up key (531), a down key (532), left and right keys (533), a setting key (534), a reset key and a mode switching key (535), and is located below the digital tube (521).
7. The multifunctional meter counter according to claim 6, characterized in that: The indicator module (54) includes a forward / reverse indicator (541), an alarm indicator (542), a power indicator (543), a metric indicator (544), a code indicator (545), and a speed indicator (546). The forward / reverse indicator (541), alarm indicator (542), and power indicator (543) are located on one side of the digital display module (52), while the metric indicator (544), code indicator (545), and speed indicator (546) are located on the other side of the digital display module (52).
8. The multifunctional meter counter according to claim 7, characterized in that: The second circuit board (5) is equipped with an MCU system (55), and the first circuit board (4) is equipped with a power module (56) for providing power to the MCU system (55), indicator module, digital display module (52), alarm module (42), and optocoupler sensor (41). The power module (56) is equipped with a type C interface (561).
9. The multifunctional meter counter according to any one of claims 2 to 8, characterized in that: The alarm module (42) is configured as a buzzer.