CN2648411Y - Driving device for film-type gas meter - Google Patents
Driving device for film-type gas meter Download PDFInfo
- Publication number
- CN2648411Y CN2648411Y CN 03209230 CN03209230U CN2648411Y CN 2648411 Y CN2648411 Y CN 2648411Y CN 03209230 CN03209230 CN 03209230 CN 03209230 U CN03209230 U CN 03209230U CN 2648411 Y CN2648411 Y CN 2648411Y
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- China
- Prior art keywords
- gas meter
- fork
- diaphragm
- gearing
- cranks
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Abstract
The utility model relates to a transmission-device of a diaphragm gas meter. The diaphragm gas meter comprises two parallel diaphragm components. Two gas chambers of the gas meter are divided into four cavities that can carry out intake and exhaust work alternately. The transmission-device is arranged on the upper part of a cavity that is positioned between the two diaphragm components, and one end of the device is connected with the diaphragm components and the other end is connected with a central bushing of a counter. The transmission device is composed of two crank-connecting rod-swaying rod structures. The two cranks form a certain angle and are fixed with a central shaft, and the cranks are connected with the swaying rod by a connecting rod. The utility model is characterized in that the swaying central lines of the two cranks are parallel; two swaying rods are respectively bushed to a vertical shaft at one side of the neighbored two diaphragm components; the vertical shaft is symmetrically arranged at the opposite angle of an air chamber; the other end of the swaying rod is respectively articulated with the diaphragm components. The utility model has the advantages that the transmitting efficiency is high; the utility model is easy to be matched with different slide valves.
Description
Technical field
The utility model relates to a kind of gearing of deaphragm gas meter.
Background technology
The gearing of deaphragm gas meter is the key mechanism that the deaphragm gas meter internal mechanical is realized automated operation, and how improving its transmission efficiency and keeping long-term reliability is the key technical problem of gas meter.
The gearing of deaphragm gas meter is that a kind of set barrier film of inner chamber (normally two) of will showing is subjected to the to-and-fro movement under gas pressure and the air valve switch effect to convert the device of the rotation of air valve sum counter to, and is used for central shaft with its alternating action masterpiece and realizes automatic running.The structure of several frequently seen gearing is shown in Figure 1A, 1B, 1C, 1D, these four kinds of gearings all are two groups of fork-toggles that connect above-mentioned two barrier films respectively, every group of mechanism all is that be pivoted with on column 1 can be around the fork 2 of column 1 swing, the other end of fork 2 connects barrier film, the alternate reciprocating motion of two barrier films drives two forks 2 and does corresponding swing, two forks 2 connect two connecting rods 3 respectively, alternately rotation by two connecting rods 3 and crank 4 makes the central shaft of linkage counter rotate, and the work of control air valve 5.Wherein said mechanism can be the plane mechanism form, also can be three-dimensional mechanism form, and wherein plane mechanism is the mechanism of people's first-selection.In above-mentioned fork-toggle, the idle component of fork transmission is the main loss of gearing, how to improve transmission efficiency, reducing this idle component is the direction that people explore all the time, and gearing also is a key issue with multi-form cooperating of ventilation guiding valve (air valve).
The utility model content
Technical problem to be solved in the utility model provides a kind of high pass efficient, be convenient to the gearing of the deaphragm gas meter that cooperates with multi-form air valve.
The gearing of deaphragm gas meter of the present utility model is realized by following technical scheme.
A kind of gearing of deaphragm gas meter, this deaphragm gas meter has two diaphragm assemblies that be arranged in parallel, two air chambers of gas meter are separated into alternately four chambers of intake and exhaust work, gearing is located at the chamber top between this two diaphragm assembly, the one end connects diaphragm assembly, and the other end is connected to the central axle sleeve of counter; This gearing is made up of two cranks-connecting rod-swing-bar mechanism, and wherein: two cranks are mutually certain angle and set firmly with central axle sleeve, and crank connects fork by connecting rod, and feature is:
The oscillation centre line parallel of two forks, this two fork are sheathed on respectively on the vertical shaft of contiguous two diaphragm assemblies, one side, and this vertical shaft balanced configuration is in the air chamber diagonal angle, and the other end of fork is hinged with diaphragm assembly respectively.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
Two cranks are mutually 90 ° of angles.
This fork is by hinged with the center of affixed pole of fork and diaphragm assembly.
Advantage of the present utility model is:
1, the power arm on the vertical shaft--fork can be provided with arbitrarily, can accomplish very short; Also therefore dwindle and take up room.The moment that fork is exported can overcome the mechanical friction resistance between bigger mechanical resistance, particularly air valve and valve seat, axle and bearing.
2, because the pivot angle of fork is subjected to the travel limits of diaphragm assembly, the short more crank that matches with it of fork is just short more; And connecting rod is not limit by this, can accomplish the longest (only being subject to the width of housing), analyze according to four connecting rod vectorial force figure principles, the ratio of length of connecting rod and crank length is big more, the vector of fork (idle) component is more little, this reduces the motive power that this component has just equaled to increase the gas meter running concerning the small mechanical pressure of gas meter is lost formed running power.The connecting rod of this device and the ratio of crank length were up to 5.3: 1.
3, on the plane that fork, connecting rod, crank equal length make full use of, his area utilization has reached maximum, that is to say that this plane can accomplish minimum, can satisfy the requirement of gas meter planform fully, the plane space that takies with similar same specification gas meter is minimum, 0.75 of not enough similar same specification gas meter.
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Figure 1A～Fig. 1 D is the structure principle chart of the gearing of existing deaphragm gas meter.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the side cross-sectional schematic of Fig. 2.
Embodiment
Shown in Fig. 2,3, the gearing of a kind of deaphragm gas meter provided by the utility model, formed by two cranks-connecting rod-swing-bar mechanism, this deaphragm gas meter has two diaphragm assemblies that be arranged in parallel 13,14, the gas meter air chamber is separated to form two Room, four chambeies of the inlet and outlet of alternation, this gearing is located at the top between this chamber, wherein:
Two cranks-connecting rod-the swing-bar mechanism that constitutes this gearing is the two cranks-connecting rod-swing-bar mechanism of balanced configuration, wherein: two cranks 4,8 are mutually certain angle and center output sleeve 6 sets firmly, crank 4,8 connects fork 2,10 by connecting rod 3,9, and the swing center of circle of fork 2,10 is fixedly arranged on respectively on the vertical shaft 1,11 at two air chamber diagonal angles, and the other end of fork 2,10 is hinged with the center of diaphragm assembly 13,14 respectively.
In the diagram specific embodiment, this two crank the 4, the 8th is mutually 90 ° of angles.Crank 4,8 and center output sleeve 6 are fixed into one, and crank 4,8 also connects air valve 5, drive air valve 5 motions, and axle sleeve 6 drives counter by gear pair and measures.This fork the 2, the 10th is by the pole 12,15 that sets firmly with fork and hinged with diaphragm assembly 14,13 respectively.
This gearing has not only been realized the matching problem that makes things convenient for multi-form guiding valve, and its transmission efficiency also is the highest level of like product.
The above only is the utility model specific embodiment; everyly be familiar with this skill personage and make various modifications or change very easily in view of the above; therefore, all equivalence replacements that the utility model claim spirit is done that do not break away from all should be included in this patent protection domain.
Claims (3)
1, a kind of gearing of deaphragm gas meter, this deaphragm gas meter has two diaphragm assemblies that be arranged in parallel, two air chambers of gas meter are separated into alternately four chambers of intake and exhaust work, gearing is located at the chamber top between this two diaphragm assembly, the one end connects diaphragm assembly, and the other end is connected to the central axle sleeve of counter; This gearing is made up of two cranks-connecting rod-swing-bar mechanism, and wherein: two cranks are mutually certain angle and set firmly with central axle sleeve, and crank connects fork by connecting rod, and feature is:
The oscillation centre line parallel of two forks, this two fork are sheathed on respectively on the vertical shaft of contiguous two diaphragm assemblies, one side, and this vertical shaft balanced configuration is in the air chamber diagonal angle, and the other end of fork is hinged with diaphragm assembly respectively.
2, the gearing of deaphragm gas meter according to claim 1 is characterized in that: two cranks are mutually 90 ° of angles.
3, the gearing of deaphragm gas meter according to claim 1 is characterized in that: this fork is by hinged with the center of affixed pole of fork and diaphragm assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209230 CN2648411Y (en) | 2003-09-09 | 2003-09-09 | Driving device for film-type gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209230 CN2648411Y (en) | 2003-09-09 | 2003-09-09 | Driving device for film-type gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648411Y true CN2648411Y (en) | 2004-10-13 |
Family
ID=34325059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209230 Expired - Fee Related CN2648411Y (en) | 2003-09-09 | 2003-09-09 | Driving device for film-type gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2648411Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809419B (en) * | 2007-09-25 | 2011-11-02 | 阿克塔锐斯两合公司 | Distribution cover for a membrane gas meter with rotating distribution action |
-
2003
- 2003-09-09 CN CN 03209230 patent/CN2648411Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809419B (en) * | 2007-09-25 | 2011-11-02 | 阿克塔锐斯两合公司 | Distribution cover for a membrane gas meter with rotating distribution action |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |