CN216846389U - Sampling device and gas meter with same - Google Patents
Sampling device and gas meter with same Download PDFInfo
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- CN216846389U CN216846389U CN202122976144.9U CN202122976144U CN216846389U CN 216846389 U CN216846389 U CN 216846389U CN 202122976144 U CN202122976144 U CN 202122976144U CN 216846389 U CN216846389 U CN 216846389U
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Abstract
The disclosure relates to a sampling device and a gas meter with the sampling device. The sampling device includes a word wheel set including a leading word wheel and an output gear portion. The sampling device further comprises a signal transmission wheel comprising an input gear portion, and first and second signal generating elements the first and second signal generating elements being arranged at intervals along an axial direction of the signal transmission wheel and at different angular positions with respect to a center of the signal transmission wheel. The sampling device further comprises a signal acquisition circuit board provided with a first signal acquisition element and a second signal acquisition element spaced apart along the axial direction of the signal emitting wheel and arranged in correspondence with the first signal generating element and the second signal generating element, wherein the first signal acquisition element and the second signal acquisition element interact with the first signal generating element and the second signal generating element, respectively, to generate the sampling signal.
Description
Technical Field
The disclosure relates to a sampling device and a gas meter with the sampling device.
Background
Gas meters are usually equipped with a sampling device to collect data on the gas flow. However, the conventional sampling device is usually complex in structure, so that the production, manufacturing and installation costs are high, and the cost of the whole product of the gas meter is high.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problems and needs, the present disclosure provides a novel sampling device and a gas meter having the same, which solve the above problems and bring other technical effects due to the following technical features.
In one aspect, the present disclosure provides a sampling device, including a character wheel set, the character wheel set includes a leading character wheel and an output gear portion rotating synchronously with the leading character wheel. The sampling device further comprises a signal transmitting wheel, wherein the signal transmitting wheel comprises an input gear part, and the input gear part is configured to be directly or indirectly meshed with the output gear part, so that the signal transmitting wheel is driven by the output gear part to rotate. The signal-emitting wheel further includes first and second signal-generating elements that are arranged at intervals along an axial direction of the signal-emitting wheel and at different angular positions with respect to a center of the signal-emitting wheel. The sampling device further comprises a signal acquisition circuit board provided with a first signal acquisition element and a second signal acquisition element spaced apart along the axial direction of the signal emission wheel and arranged in correspondence with the first signal generation element and the second signal generation element, wherein the first signal acquisition element and the second signal acquisition element interact with the first signal generation element and the second signal generation element, respectively, to generate the sampling signal.
According to a preferred aspect, the first signal acquisition element and the second signal acquisition element are configured to generate the sampled signal when the distance from the first signal generating element and the second signal generating element, respectively, decreases to a threshold distance.
According to a preferable scheme, the output gear part and the head character wheel are of an integral structure.
According to a preferred scheme, the signal acquisition circuit board is arranged to be parallel to the axial direction of the signal transmitting wheel.
According to a preferred solution, the word wheel group and the signal transmission wheel are arranged with their axial directions parallel to each other.
According to a preferred aspect, the input gear portion is configured to directly mesh with the output gear portion.
According to a preferred version, the first and second signal-collecting elements are proximity sensors.
According to a preferred solution, the first and second signal-collecting elements are hall sensors.
According to a preferred embodiment, the first signal generating element and the second signal generating element are rubidium magnets or magnetic steel.
According to a preferred version, the angular positions of the first signal generating element and the second signal generating element differ by 180 degrees.
According to a preferred embodiment, the angular positions of the first signal generating element and the second signal generating element differ by an angle between 0 and 180 degrees, so that the first signal generating element and the second signal generating element generate signals at unequal time intervals.
According to a preferred version, the angular positions of the first signal generating element and the second signal generating element differ by 120 degrees.
According to a preferred solution, the signal emitting wheel is further provided with a third signal generating element, which is arranged at a distance from the first signal generating element and the second signal generating element along the axial direction of the signal emitting wheel and at a different angular position, wherein the signal acquisition circuit board is further provided with a third signal acquisition element configured to interact with the third signal generating element to generate a sampling signal.
According to a preferred solution, the angular positions of the first signal generating element, the second signal generating element and the third signal generating element differ from each other by 120 degrees.
On the other hand, the present disclosure also provides a gas meter, which includes the sampling device of any one of the foregoing items.
The sampling device and the gas meter with the sampling device provided by the disclosure have at least the following advantages.
Firstly, the sampling device has simple and compact structure, is convenient for the production, the manufacture and the installation of a structural component circuit board, and further reduces the cost of the whole product.
Secondly, for the case where the angular positions of the first and second signal generating elements differ by an angle between 0 and 180 degrees, the first signal generating element (2-1) and the second signal generating element (2-2) may be caused to generate signals alternately but at unequal intervals. When sampling is carried out at a constant speed, the gas meter inversion determination can be carried out through sampling time through the design of an included angle between the first signal generating element and the second signal generating element.
In addition, the signal triggering is realized by approaching or separating from the radial direction of the signal transmitting wheel, and the signal acquisition element is arranged along the axial direction of the signal transmitting wheel, so that the anti-interference distance is increased in two directions of the space, the sampling misjudgment is reduced, and the anti-interference capability of external signals is improved.
The best modes for carrying out the present disclosure will be described in more detail below with reference to the accompanying drawings so that the features and advantages of the present disclosure can be readily understood.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly described below. The drawings are intended to depict only some embodiments of the disclosure, and not all embodiments of the disclosure are limited thereto.
Fig. 1 shows the sampling device proposed by the present disclosure at different angles;
fig. 2 shows a perspective view of the sampling device proposed by the present disclosure;
fig. 3 shows a perspective exploded view of the sampling device proposed by the present disclosure.
List of reference numerals
1 head character wheel
2 Signal transmitting wheel
2-1 first signal generating element
2-2 second signal generating element
2-3 input gear part
2-4 axis of rotation
3 signal acquisition circuit board
3-1 first signal acquisition element
3-2 second signal acquisition element
4-shaped wheel group
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the embodiments of the present disclosure will be described in detail and fully with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Possible embodiments within the scope of the disclosure may have fewer components, have other components not shown in the figures, different components, differently arranged components or differently connected components, etc. than the embodiments shown in the figures. Further, two or more of the components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as a plurality of separate components.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The sampling device that this disclosure provided is particularly useful for adopting the gas table of traditional mechanical type character wheel. Meanwhile, the sampling device can also be used for various other types of counters or measuring appliances besides the gas meter.
In general, the sampling device proposed by the present disclosure includes a word wheel set 4, a signal emitting wheel 2, and a signal collecting circuit board 3.
The character wheel group 4 comprises a plurality of character wheels, each of which may be in the shape of a disk and may be provided with numerals or characters so as to show flow information, such as the flow of consumed gas. The word wheel group 4 comprises a leading word wheel 1 which may be the last digit, e.g. the ones digit, of the displayed number.
The character wheel group 4 further includes an output gear portion 1-1 rotating synchronously with the primary character wheel 1. Preferably, the output gear part 1-1 and the first character wheel are of an integral structure. Alternatively, the output gear portion 1-1 may be of a separate structure from the head character wheel and fixedly connected to the head character wheel so as to rotate synchronously therewith.
The signal transmitting wheel 2 comprises an input gear part 2-3, and the input gear part 2-3 is directly or indirectly meshed with the output gear part 1-1, so that the signal transmitting wheel 2 is driven by the output gear part 1-1 to rotate. That is, the rotation of the first character wheel of the character wheel set is transmitted to the signal transmission wheel 2 through the output gear part 1-1 and the input gear part 2-3. Wherein, preferably, the input gear part 2-3 is configured to directly mesh with the output gear part 1-1, so as to reduce intermediate parts and improve transmission efficiency.
The signal transmission wheel 2 further comprises first and second signal generating elements 2-1, 2-2 which are arranged at intervals along the axial direction of the signal transmission wheel and at different angular positions with respect to the centre of the signal transmission wheel 2.
The signal collection circuit board 3 is provided with first and second signal collection elements 3-1 and 3-2 spaced apart in the axial direction of the signal transmission wheel 2, the first and second signal collection elements 3-1 and 3-2 being arranged in correspondence with the first and second signal generation elements 2-1 and 2-2. Wherein the first signal acquisition element 3-1 and the second signal acquisition element 3-2 interact with the first signal generation element 2-1 and the second signal generation element 2-2, respectively, to generate the sampling signal.
During operation, mechanical rotation of the gauge causes the leading print wheel of the print wheel assembly to rotate. The mechanical revolution of the first character wheel of the character wheel set is transmitted to the signal transmission wheel 2 by the meshing of the output gear portion 1-1 and the input gear portion 2-3. Due to the rotation of the signal emitting wheel 2, the first signal generating element 2-1 and the second signal generating element 2-2 sequentially approach and depart from the first signal collecting element 3-1 and the second signal collecting element 3-2, and sequentially generate sampling signals. In this way, flow information can be obtained for the flow through the metering device.
Through the three basic structures of the character wheel group 4, the signal transmitting wheel 2 (provided with the first signal generating element 2-1 and the second signal generating element 2-2) and the signal acquisition circuit board 3 (provided with the first signal acquisition element 3-1 and the second signal acquisition element 3-2), the sampling device has a simple and compact structure, is convenient for production, manufacture and installation of a structural component circuit board, and further reduces the cost of the whole product.
Preferably, the first signal collecting element 3-1 and the second signal collecting element 3-2 are configured to generate sampling signals when the distance from the first signal generating element 2-1 and the second signal generating element 2-2 decreases to a threshold distance, respectively.
Preferably, the first signal collecting element 3-1 and the first signal generating element 2-1 are arranged at the same axial position in the axial direction of the signal emitting wheel 2. And, the second signal collecting element 3-2 is disposed at the same axial position as the second signal generating element 2-2 to facilitate signal collection.
Preferably, the signal emitting wheel 2 is placed near the signal acquisition circuit board 3, preferably below the signal acquisition circuit board 3. In addition, the signal acquisition circuit board 3 is preferably arranged parallel to the axial direction of the signal transmission wheel to allow interaction of the first and second signal acquisition elements 3-1 and 3-2 with the first and second signal generation elements 2-1 and 2-2.
Figure 1 shows a preferred embodiment of the sampling device. Wherein said signal acquisition circuit board 3 is preferably arranged parallel to the axial direction of the signal transmission wheel such that the axis of rotation 2-4 of the signal transmission wheel is parallel to the central connection line of the first signal acquisition element 3-1 and the second signal acquisition element 3-2. In addition, the word wheel group 4 and the signal transmitting wheel 2 may be arranged such that axial directions thereof are parallel to each other. This further makes the simple and compact structure of sampling device, is convenient for manufacturing and installation.
The first signal generating element 2-1 and the second signal generating element 2-2 may be optical, magnetic, etc. type signal generating means. Correspondingly, the first signal collecting element 3-1 and the second signal collecting element 3-2 may be optical, magnetic, etc. type signal collecting devices, as long as the signal generating element and the signal collecting element can interact to generate signals.
According to a preferred embodiment, said first 3-1 and second 3-2 signal-collecting elements are proximity sensors.
According to a preferred embodiment, the first signal generating element 2-1 and the second signal generating element 2-2 are rubidium magnets or magnetic steel.
According to a preferred embodiment, said first 3-1 and second 3-2 signal-collecting elements are hall sensors.
In the embodiment shown in fig. 1, the angular positions of the first signal generating element 2-1 and the second signal generating element 2-2 are 180 degrees apart. Thus, the first signal generating element 2-1 and the second signal generating element 2-2 alternately and at equal time intervals generate sampling signals when the signal transmission wheel 2 rotates. Specifically, the first signal collecting element 3-1 is triggered to collect a signal once when the first signal generating element 2-1 approaches the first signal collecting element 3-1 to a triggering distance. Then, as the signal transmission wheel rotates, the first signal generating element 2-1 moves away from the first signal collecting element 3-1, and the second signal generating element 2-2 starts to approach the second signal collecting element 3-2. When the second signal generating element 2-2 reaches the triggering distance, the second signal collecting element 3-2 is triggered to collect a signal once so as to complete the signal collection once.
In another preferred embodiment, the angular positions of the first signal generating element 2-1 and the second signal generating element 2-2 differ not by 180 degrees, but by an angle between 0 and 180 degrees, so that the first signal generating element 2-1 and the second signal generating element 2-2 alternately, but not at equal time intervals, generate signals. For example, the angular positions of the first signal generating element 2-1 and the second signal generating element 2-2 may differ by 120 degrees. By making the angular positions of the first and second signal generating elements not differ by 180 degrees, the times at which the first signal generating element 2-1 and the second signal generating element 2-2 generate signals can be made unequal. Thus, when sampling at a constant speed, the signal conditions generated when the signal transmitting wheel rotates forwards and backwards are different. Therefore, when sampling at a constant speed, the gas meter inversion judgment can be carried out by utilizing the acquisition time of the sampling signal through the design of the included angle between the first signal generating element and the second signal generating element.
Preferably, the signal emitting wheel 2 is further provided with third signal generating elements, not shown in the drawings, which are arranged at intervals along the axial direction of the signal emitting wheel with the first signal generating elements 2-1 and the second signal generating elements 2-2 and at different angular positions, wherein the signal acquisition circuit board 3 is further provided with third signal acquisition elements configured to interact with the third signal generating elements to generate sampled signals. The angular positions of the first signal generating element 2-1, the second signal generating element 2-2 and the third signal generating element are different from each other by 120 degrees. Correspondingly, the angular positions of the first signal acquisition element 2-1, the second signal acquisition element 2-2 and the third signal acquisition element are different from each other by 120 degrees. For example, if the order of generating the signals is that the first group, the second group, and the third group represent forward rotation, it can be determined that reverse rotation has occurred when the order of generating the signals is that the first group, the third group, and the second group.
Exemplary embodiments of the proposed solution of the present disclosure have been described in detail above with reference to preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above, and that many combinations of the various technical features, structures presented in the present disclosure may be made without departing from the concept of the present disclosure, without departing from the scope of the present disclosure, which is defined by the appended claims.
Claims (15)
1. A sampling device, comprising:
a character wheel group (4) including a leading character wheel (1) and an output gear part (1-1) rotating synchronously with the leading character wheel (1);
a signal emitting wheel (2), the signal emitting wheel (2) comprising:
an input gear part (2-3), the input gear part (2-3) being configured to directly or indirectly mesh with the output gear part (1-1) such that the signal transmission wheel (2) is rotated by the output gear part (1-1);
a first signal generating element (2-1) and a second signal generating element (2-2) arranged at intervals along the axial direction of the signal emitting wheel and at different angular positions with respect to the center of the signal emitting wheel (2);
a signal acquisition circuit board (3), the signal acquisition circuit board (3) being provided with a first signal acquisition element (3-1) and a second signal acquisition element (3-2) spaced apart along an axial direction of the signal emitting wheel (2) and arranged in correspondence with the first signal generating element (2-1) and the second signal generating element (2-2), wherein the first signal acquisition element (3-1) and the second signal acquisition element (3-2) interact with the first signal generating element (2-1) and the second signal generating element (2-2) respectively to generate sampling signals.
2. The sampling device according to claim 1, characterized in that the first signal acquisition element (3-1) and the second signal acquisition element (3-2) are configured to generate a sampling signal when the distance to the first signal generation element (2-1) and the second signal generation element (2-2), respectively, decreases to a threshold distance.
3. The sampling device according to claim 1, characterized in that said output gear wheel (1-1) is of a unitary construction with the first-hand print wheel.
4. The sampling device according to claim 1, characterized in that the signal acquisition circuit board (3) is arranged parallel to the axial direction of the signal emitting wheel (2).
5. The sampling device according to claim 1, characterized in that the word wheel group (4) and the signal transmission wheel (2) are arranged with their axial directions parallel to each other.
6. The sampling device according to claim 1, characterized in that said input gear wheel (2-3) is configured to directly mesh with said output gear wheel (1-1).
7. The sampling device according to claim 1, characterized in that the first signal-collecting element (3-1) and the second signal-collecting element (3-2) are proximity sensors.
8. The sampling device according to claim 1, characterized in that said first (3-1) and second (3-2) signal acquisition elements are hall sensors.
9. The sampling device according to claim 1, characterized in that the first signal generating element (2-1) and the second signal generating element (2-2) are rubidium magnets or magnetic steel.
10. The sampling device according to claim 1, characterized in that the angular positions of the first signal generating element (2-1) and the second signal generating element (2-2) differ by 180 degrees.
11. The sampling device according to claim 1, characterized in that the angular positions of the first signal generating element (2-1) and the second signal generating element (2-2) differ by an angle between 0 and 180 degrees, such that the first signal generating element (2-1) and the second signal generating element (2-2) generate signals at unequal time intervals.
12. The sampling device according to claim 11, characterized in that the angular positions of the first signal generating element (2-1) and the second signal generating element (2-2) differ by 120 degrees.
13. The sampling device according to claim 1, characterized in that the signal emitting wheel (2) is further provided with a third signal generating element arranged at a distance from the first (2-1) and second (2-2) signal generating elements in the axial direction of the signal emitting wheel and in a different angular position, wherein the signal acquisition circuit board (3) is further provided with a third signal acquisition element configured to interact with the third signal generating element to generate a sampled signal.
14. The sampling device according to claim 13, characterized in that the angular positions of the first signal generating element (2-1), the second signal generating element (2-2) and the third signal generating element differ from each other by 120 degrees.
15. A gas meter, characterized in that it comprises a sampling device according to any one of claims 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122976144.9U CN216846389U (en) | 2021-11-30 | 2021-11-30 | Sampling device and gas meter with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122976144.9U CN216846389U (en) | 2021-11-30 | 2021-11-30 | Sampling device and gas meter with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216846389U true CN216846389U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122976144.9U Active CN216846389U (en) | 2021-11-30 | 2021-11-30 | Sampling device and gas meter with same |
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|---|---|
| CN (1) | CN216846389U (en) |
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- 2021-11-30 CN CN202122976144.9U patent/CN216846389U/en active Active
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