Gas meter movement embedded transmission mechanism
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A transmission mechanism, gas meter technology, applied in measuring devices, instruments, liquid/fluid solids measurement, etc., can solve problems such as increased valve cover operating resistance, data errors, failures, etc.
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A transmission mechanism, gas meter technology, applied in measuring devices, instruments, liquid/fluid solids measurement, etc., can solve problems such as increased valve cover operating resistance, data errors, failures, etc.
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[0019] Example: refer to Figure 1 to Figure 6 , the built-in transmission mechanism of the gas meter core, including the core 1, the valve seat 2 connected to the core 1 and the valve cover 3 cooperating with the valve seat 2, wherein: the core 1 is equipped with a bracket 4; the bracket 4 A worm gear shaft 6 runs through the top; a groove 4a is formed in the middle of the upper end of the bracket 4, and a worm gear 5 with meshing teeth is installed in the groove 4a, and the worm gear 5 is set on the worm gear shaft 6; a semicircular hole 8a is formed on the bracket 4 The worm 8 is engaged with the worm wheel 5; the bottom end of the worm 8 is formed with a rocker 7 protruding to one side; the outer end of the rocker 7 has a shaft structure, and the shaft structure is successively connected with at least two connecting rods 9 The center of rotation of the rocker 7 and the center of rotation of the valve cover 3 are on the same axis; the lower end of the shaft structure of the...
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Abstract
The invention discloses a built-in transmission mechanism of a gas meter movement, which includes a movement, a valve seat connected to the movement and a valve cover fitted on the valve seat, wherein: a support is installed on the movement; a worm gear is penetrated through the support Shaft; a groove is formed in the middle of the upper end of the bracket, and a worm gear with meshing teeth is installed in the groove, and the worm gear is set on the worm gear shaft; a worm screw with a semicircular hole is installed on the bracket, and the worm screw meshes with the worm gear; A rocker with one side protruding; the outer end of the rocker has a shaft structure, and the shaft structure is sequentially connected with at least two connecting rods; the rotation center of the rocker and the rotation center of the valve cover are on the same axis; The lower end of the shaft structure is matched with a rocker sleeve; the rocker sleeve is matched and arranged on the valve cover; the connecting rod is hinged with the upper pull arm; the upper pull arm is connected to the flagpole through a splined structure; Drive the connecting rod, the upper pulling arm and the flagpole to reciprocate at equal distances and angles. It has the advantages of stable performance, accurate data output, reasonable structure and durability.
Description
technical field [0001] The invention relates to a household and industrial gas meter, in particular to a built-in transmission mechanism of a gas meter movement. Background technique [0002] At present, the internal transmission mechanism of the gas meter is mainly to fix the gear on the valve cover. With the rotation of the valve cover, the gear is driven to rotate, and then the gear is driven out. This is simple and convenient. However, with the gas flow in the gas meter The rotation of the gear will show irregular speed changes and jumps with the change of the flow rate, which will lead to the gap and instability of the output data. With the prolongation of the use time and the wear of the transmission parts, this speed Changes and jumps will be gradually enlarged, which will directly affect the error of the data output by the gas meter. [0003] In addition, since the valve cover in the gas meter is screwed on the valve seat, fixing the gear on the valve cover will inc...
Claims
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