Electronic direct-reading character wheel box of liquid seal water meter
A word wheel box and word wheel technology, applied in volume indication and recording equipment, etc., can solve problems such as high requirements for the production and use of word wheel boxes, reading error codes, difficulty in large-scale promotion of word wheel boxes, etc., to reduce welding process , reduce the difficulty, reduce the number of effects
Inactive Publication Date: 2015-12-30
谈晓彬
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Problems solved by technology
[0003] This kind of word wheel box with photoelectric module may cause the generation of air bubbles in the word wheel box cavity during production, transportation, storage and use, and the generation of air bubbles will also cause light to reflect and refract, causing reading errors and other failures. The production and use requirements of this kind of character wheel box are high, which brings difficulty to the large-scale promotion of character wheel box
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[0026] Such as Figure 1~6 As shown, a liquid-sealed water meter electronic direct-reading character wheel box includes a character wheel cavity 6 and an electronic module cavity 8; the character wheel shaft 3, a character wheel group arranged on the character wheel shaft 3, The carry wheel shaft 5 arranged parallel to the character wheel shaft 3 and the four-eight-cone gear set arranged on the carry wheel shaft 5; the character wheel set is connected with the four-eight-cone gear set; the character wheel shaft 3 The two ends of the two ends are respectively arranged on the two ends of the character wheel chamber 6, and one end of the character wheel shaft 3 runs through the end wall of the character wheel chamber 6, and the end wall of the character wheel shaft 3 passing through the character wheel chamber 6 is provided with a ten-cone wheel 7; The character wheel group is provided with permanent magnet 11.
[0027] Specifically, such as figure 1 , 2 , 4 and 5, the set of ...
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The invention belongs to the technical field of water meters and discloses an electronic direct-reading character wheel box of a liquid seal water meter. The electronic direct-reading character wheel box comprises a character wheel cavity and an electronic module cavity, wherein a character wheel shaft, a character wheel set, a carry wheel shaft and a four / eight-tooth wheel set are arranged in the character wheel cavity, the character wheel set is arranged on the character wheel shaft, the carry wheel shaft is arranged parallel to the character wheel shaft, and the four / eight-tooth wheel set is arranged on the carry wheel shaft; the character wheel set and the four / eight-tooth wheel set are connected in a transmission mode; the two ends of the character wheel shaft are arranged at the two ends of the character wheel cavity respectively, one end of the character wheel shaft penetrates through the end wall of the character wheel cavity, and a ten-tooth wheel is arranged at the end, penetrating through the character wheel cavity, of the character wheel shaft; a permanent magnet is arranged on the character wheel set; two magnetic sensing circuit boards perpendicular to each other are arranged in the electronic module cavity, and Z-axis magneto-resistor sensing chips are arranged on the magnetic sensing circuit boards. According to the electronic direct-reading character wheel box, electronic modules can be encapsulated with conventional nontransparent epoxy resin glue; the problem that light reflection or refraction is caused by bubbles produced in a liquid seal photoelectric character wheel box and affects the accuracy of photoelectric direct reading is completely solved.
Description
technical field [0001] The invention belongs to the technical field of water meters, in particular to an electronic direct-reading character wheel box for a liquid-sealed water meter. Background technique [0002] At present, the word wheel box of the water meter in the liquid-sealed remote water meter widely used in China is mainly a word wheel box designed on the basis of the circuit board of the photoelectric module. The photoelectric module is installed through the word wheel box, and the epoxy resin with strong light transmission is used. The glue filling process seals the character wheel box to achieve the function of photoelectric direct reading and remote transmission. This requires that the plastic material selected for the character wheel box of the liquid-sealed water meter has strong light transmittance, and the processing of the photoelectric plate groove in the word wheel box has high dimensional accuracy; For the reading function, choosing as many photocells ...
Claims
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Inventor 谈晓彬赖习奎陈泽远
Owner 谈晓彬