CN208547391U - A kind of gas meter movement driving mechanism - Google Patents
A kind of gas meter movement driving mechanism Download PDFInfo
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- CN208547391U CN208547391U CN201821192072.0U CN201821192072U CN208547391U CN 208547391 U CN208547391 U CN 208547391U CN 201821192072 U CN201821192072 U CN 201821192072U CN 208547391 U CN208547391 U CN 208547391U
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- rod
- drive rod
- lower section
- cylindrical bar
- retaining ring
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Abstract
The utility model discloses a kind of gas meter movement driving mechanism, including spaced two pieces of engagement plates, it is provided with cylindrical bar between the end of described two engagement plates, drive rod is connected on the cylindrical bar, the drive rod is rotated around cylindrical bar；The cylindrical bar lower part is the lower section body of rod less than cylinder bar body diameter, the drive rod is movably connected on the lower section body of rod, it is provided with several segments retaining ring on the lower section body of rod, catching groove compatible with retaining ring is provided on the drive rod, the width of the catching groove is greater than the width of retaining ring；The connection of drive rod and core part is more accurate, and drive rod drives the loss of travel rate after machine core main axis to reduce, and guarantees that rotational travel is stablized, metering numerical value is more accurate.
Description
Technical field
The utility model relates to gas meter, flow meter technical field, specially a kind of gas meter movement driving mechanism.
Background technique
After self-drying type gas meter, present diaphragm gas meter is exactly to constantly improve and grow up on this basis
, more than 170 years development courses are had already passed through so far, and the machine core of diaphragm gas meter is the core component of metering.And drive rod with
Connection type between core device becomes particularly important, in the prior art, the company between most drive rod and core part
It connects all relatively simple, is usually all to open up a port by one end in drive rod, by through-hole and be set in core part
On the body of rod, as long as the rotary motion of drive rod can be realized in the diameter that the bore of port is greater than the body of rod, problem is: port and the body of rod
Between due to gap presence, drive rod will appear the bounce on radial direction and axial direction when rotated, in this way, drive rod band
Stroke after motivation core main axis will change, and lead to the metering numerical value inaccuracy of measurement chamber.
Utility model content
The purpose of this utility model is to provide for a kind of gas meter movement driving mechanism, the company of drive rod and core part
More accurate loss of travel rate reduction after drive rod drive machine core main axis is connect, guarantees that rotational travel is stablized, measures numerical value
It is more accurate.
In order to achieve the above-mentioned object of the invention, the utility model uses following technical scheme: a kind of gas meter movement transmission
Mechanism, including spaced two pieces of engagement plates are provided with cylindrical bar, the cylindrical bar between the end of described two engagement plates
On be connected with drive rod, the drive rod is rotated around cylindrical bar；The cylindrical bar lower part is straight less than cylinder bar body
The lower section body of rod of diameter, the drive rod are movably connected on the lower section body of rod, and several segments retaining ring, institute are provided on the lower section body of rod
It states and is provided with catching groove compatible with retaining ring on drive rod, the width of the catching groove is greater than the width of retaining ring.
Preferably, the aperture at the drive rod and the cooperation of the lower section body of rod is greater than the diameter of the lower section body of rod, and unilateral
Gap width is 0.05-0.1mm；It, will be between drive rod and the lower section body of rod in the case where not influencing drive rod flow rotation
It is flexibly connected precision to improve, moving up and down when can reduce drive rod rotation to the full extent.
Preferably, the top and bottom of the retaining ring are flushed with the top and bottom of catching groove, rotate drive rod around the lower section body of rod
Shi Gengjia is steady.
Preferably, the retaining ring quantity is 2-3, and matched catching groove quantity is 2-3；The quantity of retaining ring
Control is to increase the contact area connected between the lower section body of rod and transmission lever, transmission lever is more flat in rotation between 2-3
Surely, structural strength is stablized, and opposite if the quantity of the retaining ring on the lower section body of rod is excessive, the width of retaining ring will become smaller, then
Phenomena such as bonding strength between retaining ring and catching groove will reduce, and be easy to happen loosening, burst apart.
Preferably, the surface of the lower section body of rod and the surface of drive rod are filled out equipped with lubricant；Lubricant can be selected
The excellent honest and clean lubricating oil of price, not only high lubricating effect, rotation are more smooth, but also production cost is low.
It is realized admittedly in slot compatible with the cylindrical bar preferably, two ends of the cylindrical bar buckle into engagement plate
Fixed connection；In such fixed form, cylinder boom end is fastener, and the slot in engagement plate is catching groove, by fastener with it is compatible
Catching groove fixation snaps together, the structure of fastener is simple, under the premise of meeting structural strength height, processing and manufacturing it is convenient.
Compared with prior art, using a kind of gas meter movement driving mechanism of above-mentioned technical proposal, have has as follows
Beneficial effect:
Catching groove on drive rod is connect with the retaining ring of the lower section body of rod, and the width of catching groove is greater than the width of retaining ring, retaining ring with
Under the action of catching groove, drive rod can smoothly be rotated around the lower section body of rod, and retaining ring has limited drive rod to the greatest extent and existed
Moving up and down in rotation process, in this way, a loss of travel rate of the machine core main axis that drive rod drives reduces, combustion gas is held
Long-pending metering numerical value is accurate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of gas meter movement driving mechanism embodiment of the utility model；
Fig. 2 is the partial enlarged view in the present embodiment Fig. 1 at A；
Fig. 3 is the structural schematic diagram of drive rod in the present embodiment；
Fig. 4 is a kind of cross-sectional view of gas meter movement driving mechanism in the present embodiment；
Fig. 5 is a kind of schematic perspective view of gas meter movement driving mechanism in the present embodiment.
Appended drawing reference: 1, engagement plate；2, cylindrical bar；20, the lower section body of rod；3, drive rod；30, catching groove；4, retaining ring.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
A kind of gas meter movement driving mechanism as shown in Fig. 1 to 5, including spaced two pieces of engagement plates 1, described two
It is provided with cylindrical bar 2 between the end of a engagement plate 1, drive rod 3 is connected on the cylindrical bar 2, the drive rod 3 encloses
It is rotated around cylindrical bar 2；It is the lower section body of rod 20 less than 2 ontology diameter of cylindrical bar in the middle part of the cylindrical bar 2, the drive rod 3 is living
It is dynamic to be connected on the lower section body of rod 20, several segments retaining ring 4 is provided on the lower section body of rod 20, be provided on the drive rod 3 with
The compatible catching groove 30 of retaining ring 4, the width of the catching groove 30 are greater than the width of retaining ring 4.
As shown in figures 1 and 3, in the installation process of the utility model, cylindrical bar 2 and the lower section body of rod 20 are integrally formed,
Firstly, 2 upper end of cylindrical bar is connected with engagement plate 1, then drive rod 3 is applied into certain effect by machine tool or manpower
Power makes catching groove 4 buckle into realization in retaining ring under the action of itself plastic part elastic force and is fastened and connected, prevents drive rod in rotation
It moves up and down in the process.The cylindrical bar lower section body of rod is connect with another piece of engagement plate again, the top and bottom of 3 catching groove 30 of drive rod are under
The top and bottom of section 20 retaining ring 4 of the body of rod link together, and since the width of catching groove 30 is greater than the width of retaining ring 4, drive rod 3 is can
It is rotated around the lower section body of rod 20, it can be to avoid interfering, when drive rod 3 rotates, the effect of catching groove 30 and retaining ring 4, catching groove
30 have limited moving up and down when drive rod 3 rotates to the full extent, in this way, the machine core main axis that drive rod 3 drives
One loss of travel rate reduces, and the metering numerical value of volumetric gas is accurate.
As shown in figure 4, the thickness of drive rod 3 is less than the length on 20 axial direction of the lower section body of rod, and drive rod 3 is under
There are gap between the section body of rod 20, the gap One-sided Widths are 0.05-0.1mm；In the feelings for not influencing 3 flow rotation of drive rod
Under condition, the precision that is flexibly connected between drive rod 3 and the lower section body of rod 20 is improved, drive rod 3 can be reduced to the full extent
Moving up and down when rotation.
The top and bottom of retaining ring 4 are flushed with the top and bottom of catching groove 30；Keep drive rod 3 more flat when rotating around the lower section body of rod 20
Surely.
4 quantity of retaining ring is 2-3, and matched 30 quantity of catching groove is 2-3；The quantity of retaining ring 4 is controlled in 2-3
It is to increase the contact area connected between the lower section body of rod 20 and transmission lever 3, transmission lever 3 is more steady in rotation, knot between a
Structure intensity stabilization, opposite if the quantity of the retaining ring 4 on the lower section body of rod 20 is excessive, the width of retaining ring 4 will become smaller, then
Bonding strength between retaining ring 4 and catching groove 30 will reduce, it is easy to phenomena such as loosening, bursting apart.
As shown in Fig. 2, the surface of the lower section body of rod 20 and the surface of drive rod 3 are filled out equipped with lubricant；Lubricant can be selected
The excellent honest and clean lubricating oil of price, not only high lubricating effect, rotation are more smooth, but also production cost is low.
Two ends of cylindrical bar 2 buckle into engagement plate 1 and achieve a fixed connection in slot compatible with the cylindrical bar 2；This
In class fixed form, 2 end of cylindrical bar is fastener, and the slot in engagement plate 1 is catching groove, is fixed by fastener and compatible catching groove
It snaps together, the structure of fastener is simple, and under the premise of meeting structural strength height, it is convenient to fabricate.
The above makes preferred embodiments of the present invention, does not depart from for those of ordinary skill in the art
Under the premise of the utility model principle, several variations and modifications can also be made, these also should be regarded as the protection of the utility model
Range.
Claims (6)
1. a kind of gas meter movement driving mechanism, including spaced two pieces of engagement plates (1), described two engagement plates (1)
It is provided between end cylindrical bar (2), is connected with drive rod (3) on the cylindrical bar (2), the drive rod (3) surrounds
Cylindrical bar (2) rotation；It is characterized by: cylindrical bar (2) lower part is the lower section body of rod less than cylindrical bar (2) ontology diameter
(20), the drive rod (3) is movably connected on the lower section body of rod (20), is provided with several segments retaining ring on the lower section body of rod (20)
(4), it is provided on the drive rod (3) and is greater than retaining ring with retaining ring (4) compatible catching groove (30), the width of the catching groove (30)
(4) width.
2. a kind of gas meter movement driving mechanism according to claim 1, it is characterised in that: the thickness of the drive rod (3)
Degree is less than the length of the lower section body of rod (20) axial direction, and there are gaps between drive rod (3) and the lower section body of rod (20), affiliated
Gap One-sided Widths are 0.05-0.1mm.
3. a kind of gas meter movement driving mechanism according to claim 1, it is characterised in that: above and below the retaining ring (4)
Face is flushed with the top and bottom of catching groove (30).
4. a kind of gas meter movement driving mechanism according to claim 1, it is characterised in that: retaining ring (4) quantity is
2-3, and matched catching groove (30) quantity is 2-3 section.
5. a kind of gas meter movement driving mechanism according to claim 1, it is characterised in that: the lower section body of rod (20)
Surface and the surface of drive rod (3) are filled out equipped with lubricant.
6. a kind of gas meter movement driving mechanism according to claim 1, it is characterised in that: the two of the cylindrical bar (2)
A end buckle into engagement plate (1) with achieve a fixed connection in the compatible slot of cylindrical bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192072.0U CN208547391U (en) | 2018-07-26 | 2018-07-26 | A kind of gas meter movement driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192072.0U CN208547391U (en) | 2018-07-26 | 2018-07-26 | A kind of gas meter movement driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547391U true CN208547391U (en) | 2019-02-26 |
Family
ID=65425504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821192072.0U Active CN208547391U (en) | 2018-07-26 | 2018-07-26 | A kind of gas meter movement driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208547391U (en) |
-
2018
- 2018-07-26 CN CN201821192072.0U patent/CN208547391U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191015 Address after: 510000 16 of Niu Jiao Ling Road, Dagang Town, Nansha District, Guangzhou, Guangdong, 16 Patentee after: Guangzhou gold and ignition Intelligent System Co., Ltd. Address before: 310000 291 weft seventeen Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang Patentee before: Golden Card Intelligent Group Co., Ltd. |