CN104501896A - Optical fiber direct-reading water gauge - Google Patents
Optical fiber direct-reading water gauge Download PDFInfo
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- CN104501896A CN104501896A CN201410665929.6A CN201410665929A CN104501896A CN 104501896 A CN104501896 A CN 104501896A CN 201410665929 A CN201410665929 A CN 201410665929A CN 104501896 A CN104501896 A CN 104501896A
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Abstract
The invention discloses an optical fiber direct-reading water gauge which comprises a base gauge, an impeller connector, an impeller, a gauge outfit connecting shell, a gauge outfit, a gear component and a sealing and fixing component. The gauge outfit comprises a shell, and a PCB, a character wheel component and a stepping wheel component which are respectively mounted in the shell. Optical fiber supports corresponding to two sides of each character wheel of the character wheel component are disposed on the PCB. The optical fiber supports are inserted into the shell in a sealed manner. Photoelectric light emitting tubes and photoelectric receiving tubes are arranged at the connections of the PCB and the optical fiber supports along the rotation direction of the character wheels in a staggered manner. Transmitting optical fibers and receiving optical fibers corresponding to the photoelectric light emitting tubes and the photoelectric receiving tubes in number are disposed in the optical fiber supports. The upper ends of the transmitting optical fibers and the receiving optical fibers are respectively correspondingly communicated with the photoelectric light emitting tubes and the photoelectric receiving tubes, the lower ends of the transmitting optical fibers and the receiving optical fibers respectively face the character wheels, and the lower ends of the transmitting optical fibers and the receiving optical fibers on two sides of the character wheels are in one-to-one correspondence and matched.
Description
Technical field
The present invention relates to water meter, particularly relate to a kind of optical fiber direct-reading water meter.
Background technology
In daily life, water meter is seen everywhere, and has become an important component part of people's life.Traditional mechanical water meter gradually replace by photoelectric water meter, the gauge outfit of this photoelectric water meter generally comprises housing 1 and pcb board 2, print wheel component 3 and the ladder be arranged on respectively in housing 1 enters wheel assembly 4, and on pcb board 2, the both sides of each character wheel 3a of corresponding print wheel component 3 are respectively equipped with the infraluminescence pipe and infrared receiving tube that cooperatively interact.During its work, the notch that the infrared electro signal that infraluminescence pipe sends is perforated through on character wheel 3a is received by the infrared receiving tube matched, meanwhile, this infrared receiving tube is by this information transmission to controller, and decoding of information is just generated reading through certain algorithm by controller.
The gauge outfit of the photoelectric water meter of this structure, when designing, for avoiding water to contact with infrared receiving tube with pcb board 2, infraluminescence pipe, has added one piece by pcb board 2, infraluminescence pipe and infrared receiving tube and the completely isolated transparent glass cover of water in housing.Like this, this photoelectric water meter is caused to there is following problem when reality uses:
1, the infrared electro signal sent due to infraluminescence pipe need first penetrate layer of transparent cloche, penetrate the notch (i.e. WATER AS FLOW MEDIUM) on character wheel 3a again, finally also to penetrate layer of transparent cloche could be received by infrared receiving tube, so in the use procedure of water meter, the high grade of transparency of transparent glass cover must be remained.But water meter in use for some time, the surface that transparent glass cover contacts with tap water is very easy to form one deck scale, and this scale can have a strong impact on the normal transmission of infrared electro signal, thus causes water meter normally to work.Scale is formed for avoiding transparent glass cover surface, the position of general meeting corresponding housing 1 on the print wheel shaft of print wheel component 3 adds O-ring seal, make the space sealing between housing 1 and transparent glass cover, and distilled water is poured between housing 1 and transparent glass cover, like this, due to this distilled water and ducted tap water completely isolated, and distilled water can not produce scale, so well solve the problem that transparent glass cover surface easily forms scale.But the O-ring seal added can increase the rotational resistance of the print wheel shaft of print wheel component 3, thus the sensitivity that the print wheel shaft reducing print wheel component 3 rotates, and then also reduce the sensitivity of water meter;
2, because the infraluminescence pipe of character wheel 3a both sides and infrared receiving tube are isolated by transparent glass cover, so the spacing between the infraluminescence pipe of character wheel 3a both sides and infrared receiving tube is larger, like this, more once the bubble in WATER AS FLOW MEDIUM, the infrared electro signal that infraluminescence pipe sends just is difficult to be received by infrared receiving tube, thus have impact on the reading of water meter.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, providing one sensitive and the reliable optical fiber direct-reading water meter of accuracy of reading.
In order to realize above object, a kind of optical fiber direct-reading water meter provided by the invention, comprise base table, be installed on the impeller web member in described base table, be inserted into the impeller in described impeller web member, the gauge outfit of described impeller press-assembling in described impeller web member is connected shell, be arranged on the gauge outfit that described gauge outfit connects side in shell, be arranged on the gear assembly that described gauge outfit connects opposite side in shell, described gauge outfit and gear assembly sealing pressing are contained in described gauge outfit and are connected sealing fixation kit in shell, the input end of described gear assembly and the output terminal of described impeller are in transmission connection, the output terminal of described gear assembly and the input end of described gauge outfit are in transmission connection, the pcb board that described gauge outfit comprises housing and is arranged on respectively in described housing, print wheel component and ladder enter wheel assembly, on described pcb board, the both sides of each character wheel of corresponding described print wheel component are respectively equipped with structure of fiber_optic, described structure of fiber_optic sealing is inserted in described housing, the junction of described pcb board and described structure of fiber_optic is provided with photo-electroluminescence pipe and the photoelectric receiving tube of alternative arrangement along the sense of rotation of described character wheel, be provided with quantity launching fiber corresponding with described photo-electroluminescence pipe and photoelectric receiving tube respectively in described structure of fiber_optic and receive optical fiber, described launching fiber is communicated with photoelectric receiving tube with described photo-electroluminescence pipe with the upper end receiving optical fiber is corresponding respectively, the lower end of described launching fiber and reception optical fiber is respectively towards described character wheel, and the lower end one_to_one corresponding of the launching fiber of described character wheel both sides and reception optical fiber cooperatively interacts.Add at pcb board lower surface the structure of fiber_optic be connected with housing seal by adopting, and the technical scheme of photoelectric tube and optical fiber is set in structure of fiber_optic, achieve the completely isolated of pcb board, infraluminescence pipe and infrared receiving tube and water, thus without the need to assembling transparent glass cover, spacing between adjacent like this two character wheel 3a is programmable very little, thus reduce the distance that photosignal transmits in WATER AS FLOW MEDIUM widely, and then reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, improve accuracy and the reliability of meter reading; Meanwhile, the position also without the need to corresponding housing on the print wheel shaft of print wheel component adds O-ring seal, thus the resistance that the print wheel shaft reducing print wheel component rotates, and then improves the sensitivity of water meter, simple and compact for structure and cost is low.
In such scheme, the lower end of described launching fiber and reception optical fiber is respectively equipped with the warp architecture stretching to described character wheel.By adding in the lower end of launching fiber and reception optical fiber the warp architecture stretching to described character wheel respectively, like this, the distance that photosignal transmits in WATER AS FLOW MEDIUM can be reduced further, thus further reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, further increasing accuracy and the reliability of meter reading.
In such scheme, the crooked radian of described warp architecture is 60 ~ 120 °.
In such scheme, described structure of fiber_optic is assembled by two pieces of monolateral structure of fiber_optic.By structure of fiber_optic is designed to split-type structural, like this, the installation of photo-electroluminescence pipe, photoelectric receiving tube, launching fiber and reception optical fiber is convenient to.
In such scheme, described structure of fiber_optic end face is respectively equipped with the photoelectric tube container cavity holding described photo-electroluminescence pipe and photoelectric receiving tube, described structure of fiber_optic middle and lower part is respectively equipped with the fiber containment chamber be communicated with described photoelectric tube container cavity, described fiber containment chamber is for holding described launching fiber and receiving optical fiber, and the perpendicular straight part in described photoelectric tube container cavity and described fiber containment chamber is all positioned on described assembled of two pieces of monolateral structure of fiber_optic.So more be conducive to the installation of photo-electroluminescence pipe, photoelectric receiving tube, launching fiber and reception optical fiber.
In such scheme, the structure of described two pieces of monolateral structure of fiber_optic is identical, can reduce the production technology of structure of fiber_optic like this, be convenient to batch production and cost is low.
In such scheme, be tightly connected by bonding way between described two pieces of monolateral structure of fiber_optic.Certainly, other modes that are tightly connected can also be adopted.
In such scheme, be positioned on outermost described structure of fiber_optic and be only provided with spaced apart photo-electroluminescence pipe or photoelectric receiving tube, like this, the production cost of every block water meter can be reduced, avoid the waste of resource.
In such scheme, the described photo-electroluminescence pipe that the corresponding group of described each character wheel cooperatively interacts and photoelectric receiving tube.
In such scheme, the junction of a described structure of fiber_optic and described pcb board is provided with 10 photoelectric tube container cavities, 10 corresponding fiber containment chambeies be communicated with described 10 photoelectric tube container cavities are respectively provided with in described structure of fiber_optic, the top in 10 described fiber containment chambeies is arranged side by side, and the lower end in 10 described fiber containment chambeies coincides with a bit between two.
The present invention is compared with the prior art, and fully its superiority of display is:
1, add at pcb board lower surface the structure of fiber_optic be connected with housing seal by adopting, and the technical scheme of photoelectric tube and optical fiber is set in structure of fiber_optic, achieve the completely isolated of pcb board, infraluminescence pipe and infrared receiving tube and water, thus without the need to assembling transparent glass cover, spacing between adjacent like this two character wheel 3a is programmable very little, thus reduce the distance that photosignal transmits in WATER AS FLOW MEDIUM widely, and then reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, improve accuracy and the reliability of meter reading; Meanwhile, the position also without the need to corresponding housing on the print wheel shaft of print wheel component adds O-ring seal, thus the resistance that the print wheel shaft reducing print wheel component rotates, and then improves the sensitivity of water meter, simple and compact for structure and cost is low;
2, by adding in the lower end of launching fiber and reception optical fiber the warp architecture stretching to described character wheel respectively, like this, the distance that photosignal transmits in WATER AS FLOW MEDIUM can be reduced further, thus further reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, further increasing accuracy and the reliability of meter reading;
3, by structure of fiber_optic is designed to split-type structural, and by assembled of described two pieces of monolateral structure of fiber_optic design in the position of the perpendicular straight part in described photoelectric tube container cavity and described fiber containment chamber, like this, the installation of photo-electroluminescence pipe, photoelectric receiving tube, launching fiber and reception optical fiber is convenient to;
4, by being designed to just the same by the structure of described two pieces of monolateral structure of fiber_optic, the production technology of structure of fiber_optic can be reduced like this, be convenient to batch production and cost is low;
5, be positioned on outermost described structure of fiber_optic and be only provided with spaced apart photo-electroluminescence pipe or photoelectric receiving tube, like this, the production cost of every block water meter can be reduced, avoid the waste of resource.
6, described gauge outfit can adopt 5 groups of optical fiber readings, and optical fiber is in one line along character wheel side, and space structure is compact, does not change original reading plot structure, does not also change original program coding and reading mode, directly replaces the gauge outfit in existing water meter, economical and practical.
The present invention has accuracy of reading, more reliable and more stable, compact conformation and low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the structural representation of gauge outfit;
Fig. 2 is the cross-sectional view along A-A line in Fig. 1;
Fig. 3 is the structural representation of structure of fiber_optic;
Fig. 4 is the side-looking structural representation of single monolateral structure of fiber_optic in Fig. 3;
Fig. 5 is the plan structure schematic diagram of Fig. 3;
Fig. 6 is the structural representation after Fig. 5 removes a monolateral structure of fiber_optic;
Fig. 7 is structural representation of the present invention;
Fig. 8 is the plan structure schematic diagram of Fig. 7;
Fig. 9 is the cross-sectional view along B-B line in Fig. 8;
Figure 10 is the cross-sectional view along C-C line in Fig. 8;
Figure 11 is detonation configuration schematic diagram of the present invention.
In figure: housing 1, pcb board 2, print wheel component 3, character wheel 3a, ladder enters wheel assembly 4, structure of fiber_optic 5, monolateral structure of fiber_optic 5a, photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8, receives optical fiber 9, warp architecture 10, photoelectric tube container cavity 11, fiber containment chamber 12, counter wheel 13, base table 14, impeller web member 15, impeller 16, gauge outfit connects shell 17, gear assembly 18, sealing fixation kit 19, gauge outfit 20.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.
The present embodiment provides a kind of optical fiber direct-reading water meter, comprise base table 14, be installed on the impeller web member 15 in described base table 14, be inserted into the impeller 16 in described impeller web member 15, the gauge outfit be fitted in by described impeller 16 in described impeller web member 15 connects shell 17, be arranged on the gauge outfit 20 that described gauge outfit connects side in shell 17, be arranged on the gear assembly 18 that described gauge outfit connects opposite side in shell 17, described gauge outfit 20 and gear assembly 18 sealing pressing are contained in described gauge outfit and are connected sealing fixation kit 19 in shell 17, the input end of described gear assembly 18 and the output terminal of described impeller 16 are in transmission connection, the output terminal of described gear assembly 18 and the input end of described gauge outfit 20 are in transmission connection, described gauge outfit 20 comprises housing 1 and is arranged on the pcb board 2 in described housing 1 respectively, print wheel component 3 and ladder enter wheel assembly 4, on described pcb board 2, the both sides of each character wheel 3a of corresponding described print wheel component 3 are respectively equipped with structure of fiber_optic 5, character wheel 3a described in adjacent two shares a described structure of fiber_optic 5, described structure of fiber_optic 5 sealing is inserted in described housing 1, the junction of described pcb board 2 and described structure of fiber_optic 5 is provided with photo-electroluminescence pipe 6 and the photoelectric receiving tube 7 of alternative arrangement along the sense of rotation of described character wheel 3a, be provided with quantity launching fiber corresponding with described photo-electroluminescence pipe 6 and photoelectric receiving tube 7 respectively 8 in described structure of fiber_optic 5 and receive optical fiber 9, described launching fiber 8 is communicated with photoelectric receiving tube 7 with described photo-electroluminescence pipe 6 with the upper end receiving optical fiber 9 is corresponding respectively, the lower end of described launching fiber 8 and reception optical fiber 9 is respectively towards described character wheel 3a, and the lower end one_to_one corresponding of the launching fiber 8 of described character wheel 3a both sides and reception optical fiber 9 cooperatively interacts.Add at pcb board 2 lower surface the structure of fiber_optic 5 be tightly connected with housing 1 by adopting, and the technical scheme of photoelectric tube and optical fiber is set in structure of fiber_optic 5, achieve the completely isolated of pcb board 2, photo-electroluminescence pipe 6 and photoelectric receiving tube 7 and water, thus without the need to assembling transparent glass cover, spacing between adjacent like this two character wheel 3a is programmable very little, thus reduce the distance that photosignal transmits in WATER AS FLOW MEDIUM widely, and then reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, improve accuracy and the reliability of meter reading; Meanwhile, the position also without the need to corresponding housing 1 on the print wheel shaft of print wheel component 3 adds O-ring seal, thus the resistance that the print wheel shaft reducing print wheel component 3 rotates, and then improves the sensitivity of water meter, simple and compact for structure and cost is low.
The lower end of above-mentioned launching fiber 8 and reception optical fiber 9 is respectively equipped with the warp architecture 10 stretching to described character wheel 3a.By adding in the lower end of launching fiber 8 and reception optical fiber 9 warp architecture 10 stretching to described character wheel 3a respectively, like this, the distance that photosignal transmits in WATER AS FLOW MEDIUM can be reduced further, thus further reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, further increasing accuracy and the reliability of meter reading.The crooked radian of described warp architecture 10 is 90 °.
Above-mentioned structure of fiber_optic 5 is assembled by two pieces of monolateral structure of fiber_optic 5a.By structure of fiber_optic 5 is designed to split-type structural, like this, the installation of photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8 and reception optical fiber 9 is convenient to.Described structure of fiber_optic 5 end face is respectively equipped with the photoelectric tube container cavity 11 holding described photo-electroluminescence pipe 6 and photoelectric receiving tube 7, described structure of fiber_optic 5 middle and lower part is respectively equipped with the fiber containment chamber 12 be communicated with described photoelectric tube container cavity 11, described fiber containment chamber 12 is for holding described launching fiber 8 and receiving optical fiber 9, and the perpendicular straight part in described photoelectric tube container cavity 11 and described fiber containment chamber 12 is all positioned on described two pieces of assembled of monolateral structure of fiber_optic 5a.So more be conducive to the installation of photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8 and reception optical fiber 9.The structure of described two pieces of monolateral structure of fiber_optic 5a is identical, can reduce the production technology of structure of fiber_optic 5 like this, be convenient to batch production and cost is low.Be tightly connected by bonding way between described two pieces of monolateral structure of fiber_optic 5a.Certainly, other modes that are tightly connected can also be adopted.
For reducing the production cost of every block water meter, avoiding the waste of resource, during actual production, can photo-electroluminescence pipe 6 or photoelectric receiving tube 7 that outermost described structure of fiber_optic 5 on installation interval arranges be positioned at.
It should be noted that, in the present embodiment, as shown in Figure 2, the print wheel shaft of above-mentioned print wheel component 3 is driven by counter wheel 13, and described counter wheel 13 is in transmission connection with the output terminal of described gear assembly 18.
See Figure 11, above-mentioned impeller web member 15 lower surface also can add filtration members, and meanwhile, above-mentioned sealing fixation kit 19 can comprise rubber washer explosive successively from the bottom to top, gauge outfit fixture, O-ring seal, sealing gasket, tempered glass and steel-ring cover.
The corresponding 5 groups of described photo-electroluminescence pipes 6 and photoelectric receiving tube 7 cooperatively interacted of above-mentioned each character wheel 3a.A described structure of fiber_optic 5 is provided with 10 photoelectric tube container cavities 11 with the junction of described pcb board 2,10 corresponding fiber containment chambeies 12 be communicated with described 10 photoelectric tube container cavities 11 are respectively provided with in described structure of fiber_optic 5, the top in 10 described fiber containment chambeies 12 is arranged side by side, and the lower end in 10 described fiber containment chambeies 12 coincides with a bit between two.
The course of work of the present invention is as follows:
First, photo-electroluminescence pipe 6 sends photosignal; Then, this photosignal conducts via the launching fiber 8 of correspondence, and the notch be perforated through on character wheel 3a is continued conduction by the reception optical fiber 9 matched; Then, photoelectric receiving tube 7 just receives the photosignal from receiving optical fiber 9 conduction, and this photosignal is transferred to controller; Finally, this photosignal decoding is just generated reading through certain algorithm by controller.
The present invention adds at pcb board 2 lower surface the structure of fiber_optic 5 be tightly connected with housing 1 by adopting, and the technical scheme of photoelectric tube and optical fiber is set in structure of fiber_optic 5, achieve the completely isolated of pcb board 2, photo-electroluminescence pipe 6 and photoelectric receiving tube 7 and water, thus without the need to assembling transparent glass cover, spacing between adjacent like this two character wheel 3a is programmable very little, thus reduce the distance that photosignal transmits in WATER AS FLOW MEDIUM widely, and then reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, improve accuracy and the reliability of meter reading; Meanwhile, the position also without the need to corresponding housing 1 on the print wheel shaft of print wheel component 3 adds O-ring seal, thus the resistance that the print wheel shaft reducing print wheel component 3 rotates, and then improves the sensitivity of water meter, simple and compact for structure and cost is low; By adding in the lower end of launching fiber 8 and reception optical fiber 9 warp architecture 10 stretching to described character wheel 3a respectively, like this, the distance that photosignal transmits in WATER AS FLOW MEDIUM can be reduced further, thus further reduce the interference that in WATER AS FLOW MEDIUM, bubble transmits photosignal, further increasing accuracy and the reliability of meter reading; By structure of fiber_optic 5 is designed to split-type structural, and by assembled of described two pieces of monolateral structure of fiber_optic 5a design in the position of the perpendicular straight part in described photoelectric tube container cavity 11 and described fiber containment chamber 12, like this, the installation of photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8 and reception optical fiber 9 is convenient to; By being designed to just the same by the structure of described two pieces of monolateral structure of fiber_optic 5a, the production technology of structure of fiber_optic 5 can be reduced like this, be convenient to batch production and cost is low; Be positioned on outermost described structure of fiber_optic 5 and be only provided with spaced apart photo-electroluminescence pipe 6 or photoelectric receiving tube 7, like this, the production cost of every block water meter can be reduced, avoid the waste of resource; Described gauge outfit 20 can adopt 5 groups of optical fiber readings, and optical fiber is in one line along character wheel 3a side, and space structure is compact, does not change original reading plot structure, does not also change original program coding and reading mode, directly replaces the gauge outfit in existing water meter, economical and practical.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an optical fiber direct-reading water meter, comprise base table (14), be installed on the impeller web member (15) in described base table (14), be inserted into the impeller (16) in described impeller web member (15), the gauge outfit be fitted in by described impeller (16) in described impeller web member (15) connects shell (17), be arranged on the gauge outfit (20) that described gauge outfit connects shell (17) interior side, be arranged on the gear assembly (18) that described gauge outfit connects shell (17) interior opposite side, described gauge outfit (20) and gear assembly (18) sealing pressing are contained in described gauge outfit and are connected sealing fixation kit (19) in shell (17), the input end of described gear assembly (18) and the output terminal of described impeller (16) are in transmission connection, the output terminal of described gear assembly (18) and the input end of described gauge outfit (20) are in transmission connection, it is characterized in that: described gauge outfit (20) comprises housing (1) and is arranged on the pcb board (2) in described housing (1) respectively, print wheel component (3) and ladder enter wheel assembly (4), the both sides of each character wheel (3a) of the upper corresponding described print wheel component (3) of described pcb board (2) are respectively equipped with structure of fiber_optic (5), described structure of fiber_optic (5) sealing is inserted in described housing (1), the junction of described pcb board (2) and described structure of fiber_optic (5) is provided with photo-electroluminescence pipe (6) and the photoelectric receiving tube (7) of alternative arrangement along the sense of rotation of described character wheel (3a), be provided with quantity launching fiber (8) corresponding with described photo-electroluminescence pipe (6) and photoelectric receiving tube (7) respectively in described structure of fiber_optic (5) and receive optical fiber (9), described launching fiber (8) is communicated with photoelectric receiving tube (7) with described photo-electroluminescence pipe (6) with the upper end receiving optical fiber (9) is corresponding respectively, the lower end of described launching fiber (8) and reception optical fiber (9) is respectively towards described character wheel (3a), and the lower end one_to_one corresponding of the launching fiber (8) of described character wheel (3a) both sides and reception optical fiber (9) cooperatively interacts.
2. optical fiber direct-reading water meter as claimed in claim 1, is characterized in that: the lower end of described launching fiber (8) and reception optical fiber (9) is respectively equipped with the warp architecture (10) stretching to described character wheel (3a).
3. optical fiber direct-reading water meter as claimed in claim 2, is characterized in that: the crooked radian of described warp architecture (10) is 60 ~ 120 °.
4. optical fiber direct-reading water meter as claimed in claim 1, is characterized in that: described structure of fiber_optic (5) is assembled by two pieces of monolateral structure of fiber_optic (5a).
5. optical fiber direct-reading water meter as claimed in claim 4, it is characterized in that: described structure of fiber_optic (5) end face is respectively equipped with the photoelectric tube container cavity (11) holding described photo-electroluminescence pipe (6) and photoelectric receiving tube (7), described structure of fiber_optic (5) middle and lower part is respectively equipped with the fiber containment chamber (12) be communicated with described photoelectric tube container cavity (11), described fiber containment chamber (12) is for holding described launching fiber (8) and receiving optical fiber (9), the perpendicular straight part in described photoelectric tube container cavity (11) and described fiber containment chamber (12) is all positioned on described two pieces of assembled of monolateral structure of fiber_optic (5a).
6. optical fiber direct-reading water meter as claimed in claim 4, is characterized in that: the structure of described two pieces of monolateral structure of fiber_optic (5a) is identical.
7. optical fiber direct-reading water meter as claimed in claim 4, be is characterized in that: be tightly connected by bonding way between described two pieces of monolateral structure of fiber_optic (5a).
8. optical fiber direct-reading water meter as claimed in claim 1, is characterized in that: be positioned on outermost described structure of fiber_optic (5) and be only provided with spaced apart photo-electroluminescence pipe (6) or photoelectric receiving tube (7).
9. optical fiber direct-reading water meter as claimed in claim 1, is characterized in that: the corresponding 5 groups of described photo-electroluminescence pipes (6) and photoelectric receiving tube (7) cooperatively interacted of described each character wheel (3a).
10. optical fiber direct-reading water meter as claimed in claim 9, it is characterized in that: a described structure of fiber_optic (5) is provided with 10 photoelectric tube container cavities (11) with the junction of described pcb board (2), 10 corresponding fiber containment chambeies (12) be communicated with described 10 photoelectric tube container cavities (11) are respectively provided with in described structure of fiber_optic (5), the top of 10 described fiber containment chambeies (12) is arranged side by side, and the lower end of 10 described fiber containment chambeies (12) coincides with a bit between two.
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CN113324596A (en) * | 2021-07-05 | 2021-08-31 | 刘虎平 | Photoconductive photoelectric direct-reading water meter |
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CN204269176U (en) * | 2014-11-19 | 2015-04-15 | 湖北泽捷电子科技有限公司 | Optical fiber direct-reading water meter |
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