CN112798067A - Mechanical temperature compensation gas meter - Google Patents
Mechanical temperature compensation gas meter Download PDFInfo
- Publication number
- CN112798067A CN112798067A CN201911109697.5A CN201911109697A CN112798067A CN 112798067 A CN112798067 A CN 112798067A CN 201911109697 A CN201911109697 A CN 201911109697A CN 112798067 A CN112798067 A CN 112798067A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- gas meter
- temperature compensation
- adjusting
- shifting fork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000008901 benefit Effects 0.000 abstract description 19
- 239000007789 gas Substances 0.000 description 59
- 230000005540 biological transmission Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 12
- 239000012528 membrane Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a mechanical temperature compensation gas meter, and belongs to the technical field of machinery. It has solved the not accurate problem enough of current gas table temperature compensation. This mechanical type temperature compensation gas table, comprising a meter case, be equipped with diaphragm and stand in the watchcase, the diaphragm can drive the stand and rotate, be equipped with the movement body on the watchcase, be equipped with the adjusting disk that can rotate in the movement body, be equipped with link mechanism in the movement body, link mechanism's one end links firmly with the stand mutually, be equipped with the shift fork that can swing on the adjusting disk, the link mechanism other end is articulated mutually with the one end of shift fork, link mechanism can drive the adjusting disk and rotate, be equipped with the temperature sensing bimetallic strip on the adjusting disk, the one end of temperature sensing bimetallic strip links firmly on the adjusting disk, the other end of temperature sensing bimetallic strip links firmly mutually with the other end of shift fork and. This mechanical type temperature compensation gas table has the comparatively accurate advantage of temperature compensation.
Description
Technical Field
The invention belongs to the technical field of machinery, relates to a gas meter, and particularly relates to a mechanical temperature compensation gas meter.
Background
At present, the settlement between a gas company and a resident user is almost realized by metering gas consumption through a normal diaphragm gas meter without a temperature compensation function, and the metering result is settled according to standard conditions
Both national standards and certification regulations specify: the standard environment temperature for the detection of the membrane type gas meter is 20 +/-2 ℃. When the basic error of the verification under the standard temperature environment is used under the non-standard temperature environment, the actual error of the verification under the standard temperature environment is obviously changed due to the compressibility and the expansibility of the fuel gas, and the direction and the amplitude of the change are directly influenced by the weather and the temperature at that time. When the temperature is reduced by 1 ℃, the measurement error is about minus 0.34 percent.
Along with the improvement of the living standard of people, the requirement on indoor decoration is higher and higher, if the gas meter is installed indoors, a series of pipelines need to be arranged, a large amount of space is occupied, the appearance is influenced, and great trouble is caused to maintenance. Meanwhile, the rhythm of life is accelerated, the meter reading in the house is more difficult, and a plurality of defects and potential safety hazards exist in the indoor hanging meter. Thus, some cities are gradually trying to use outdoor wall-mounted watches. However, as the Chinese region is wide, the temperature change is large all the year round, the influence of the environmental temperature on the common membrane type gas meter is large, and especially in cold winter in the north, the error deviation is very large.
For example, a temperature compensation mechanism (application number: 201220663028) for a membrane type gas meter disclosed in the chinese patent document comprises a crank disc, a crank shaft, a U-shaped thermo-sensitive bimetallic strip and a position adjusting mechanism, wherein one end of the U-shaped thermo-sensitive bimetallic strip is mounted on the crank disc through a fixing screw, the other end of the U-shaped thermo-sensitive bimetallic strip is connected with the crank shaft through a rivet, the position adjusting mechanism is mounted beside the fixing screw, a standard position of the crank shaft is determined by a pointer on the crank shaft and a zero position of the crank disc, an initial position of the crank shaft is adjusted through the position adjusting mechanism, an opening of the U-shaped thermo-sensitive bimetallic strip is outwardly expanded when the temperature is high, the opening is inwardly contracted when the temperature is reduced, and a central distance and a circumferential angle of the crank shaft relative. However, the thermal bimetal is U-shaped, and the other end of the thermal bimetal is directly connected with the crank shaft through the rivet, so that the degree of freedom of swinging is large, the movement of the crank shaft is difficult to control, and the temperature compensation is not accurate enough.
Disclosure of Invention
The invention aims to provide a mechanical temperature compensation gas meter with more accurate temperature compensation aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: a mechanical temperature compensation gas meter comprises a meter shell, a diaphragm and a column are arranged in the meter shell, the membrane can drive the upright post to rotate, the shell is provided with a core body, the core body is internally provided with a rotatable adjusting disc, it is characterized in that a connecting rod mechanism is arranged in the core body, one end of the connecting rod mechanism is fixedly connected with the upright post, the adjusting disc is provided with a shifting fork capable of swinging, the other end of the connecting rod mechanism is hinged with one end of the shifting fork, and the hinge point of the connecting rod mechanism and the shifting fork is positioned at one side of the center of the adjusting disc, the connecting rod mechanism can drive the adjusting disc to rotate, the adjusting disk is provided with a thermosensitive bimetallic strip, one end of the thermosensitive bimetallic strip is fixedly connected on the adjusting disk, the other end of the thermosensitive bimetallic strip is fixedly connected with the other end of the shifting fork, and the thermosensitive bimetallic strip can drive the shifting fork to move.
The lower side of the adjusting disc is provided with a crank gear, the gas meter is axially and fixedly connected with an idle wheel and a transmission gear, the idle wheel is meshed with the crank gear and the transmission gear, and the transmission gear is in transmission connection with a counter of the gas meter. When the gas meter works, the vertical column is driven to rotate through the swinging of the diaphragm, the vertical column rotates to drive the connecting rod mechanism to rotate, the connecting rod mechanism drives the adjusting disc to rotate through the shifting fork, the crank gear of the adjusting disc drives the transmission gear to rotate through the idle wheel, and the transmission gear drives the counter to count. The working process can refer to a diaphragm gas meter transmission mechanism (application number: 201520964890.8). When the temperature outside the gas meter is 20 ℃ which is the standard temperature, the distance from the center of the adjusting disc to the hinge joint of the link mechanism and the shifting fork is L; when the temperature is lower than 20 ℃, the heat-sensitive bimetallic strip retracts according to the expansion and contraction of the heat-sensitive bimetallic strip, and drives the shifting fork to rotate, so that the center distance L is reduced, the swinging distance of the diaphragm is reduced through the connecting rod mechanism, the corresponding rotary volume is reduced, and the purpose of correcting the metering error of the gas meter is achieved; when the temperature is higher than 20 ℃, the thermosensitive bimetallic strip pushes the shifting fork to rotate, so that the center distance L is increased, the swinging distance of the diaphragm is increased through the connecting rod mechanism, the corresponding rotation volume is increased, and the purpose of correcting the metering error of the gas meter is achieved. The distance from the center of the adjusting disc to the hinged point of the connecting rod mechanism and the shifting fork is adjusted through the connecting rod mechanism by adopting the thermosensitive bimetallic strip, so that the metering error of the gas meter is corrected, and the gas meter has the advantages of more accurate temperature compensation and stable and reliable work. A mechanical temperature compensation gas meter is also suitable for a slide valve type gas meter.
In the mechanical temperature compensation gas meter, a first diaphragm and a second diaphragm are arranged in the meter shell, the first diaphragm is connected with a first upright post, the second diaphragm is connected with a second upright post, the connecting rod mechanism comprises a first traction arm, a second traction arm, a first connecting rod and a second connecting rod, one end of the first traction arm is fixedly connected with the first upright post, one end of the second traction arm is fixedly connected with the second upright post, one end of the first connecting rod and one end of the second connecting rod are hinged to a shifting fork, the other end of the first traction arm is hinged to the other end of the first connecting rod, and the other end of the second traction arm is hinged to the other end of the second connecting rod. The first diaphragm and the second diaphragm swing to drive the corresponding first connecting rod and the corresponding second connecting rod to rotate through the first stand column and the second stand column respectively, and then the shifting fork drives the adjusting disc to rotate, so that the device has the advantages of simple structure and reliable transmission.
In the mechanical temperature compensation gas meter, one end of the first connecting rod and one end of the second connecting rod are provided with through connecting holes, one end of the shifting fork is provided with a convex clamping head, and the clamping head penetrates through the connecting holes of the first connecting rod and the second connecting rod. The clamping head penetrates through the first connecting rod and the second connecting rod, so that the first connecting rod and the second connecting rod are hinged with the shifting fork, and the device has the advantages of convenience in connection and good positioning effect.
In the mechanical temperature compensation gas meter, the outer end of the chuck is provided with a conical convex head, and the conical convex body penetrates through the connecting hole. The conical convex body penetrates through the connecting hole, so that the chuck is hinged with the first connecting rod and the second connecting rod, and the connecting rod has the advantage of convenience in disassembly and assembly.
In the mechanical temperature compensation gas meter, the adjusting disc is provided with a sliding groove, the lower side of one end of the shifting fork is provided with a convex sliding head, and the sliding head is embedded in the sliding groove.
In the mechanical temperature compensation gas meter, one side of the other end of the shifting fork is provided with a convex positioning convex body, the adjusting disc is provided with a positioning groove, and the positioning convex body is embedded in the positioning groove. The positioning convex body is embedded in the positioning groove, the other end of the shifting fork is hinged with the adjusting disc, and the adjusting device has the advantages of simple structure and convenience in assembly.
In the mechanical temperature compensation gas meter, an adjusting buckle is inserted into one side of the axis of the adjusting disc, the lower end of the adjusting buckle can be inserted into a valve body of the rotary valve, a convex second clamping head is arranged on the side portion of the adjusting buckle, and a clamping groove for embedding the second clamping head is formed in the adjusting disc. The rotary valve is provided with an air inlet and an air outlet, the lower end of the adjusting buckle is inserted into the valve body of the rotary valve, the rotary of the adjusting disk can realize the opening and closing of the air inlet and the air outlet through the rotation of the adjusting buckle rotating valve, thereby realizing the control of the air inflow of the air inlet and the air outlet of the air outlet, and the two chucks are embedded into the clamping grooves, so that the adjusting buckle is connected with the adjusting disk, and the rotary valve has the advantages of simple structure and convenience in connection.
In the mechanical temperature compensation gas meter, the second clamping head is semicircular, a blocking edge is arranged at the notch of the clamping groove, and the second clamping head can be located on the lower side of the blocking edge. When the adjusting buckle is inserted into the adjusting disc, the second clamping head enters the clamping groove and rotates the adjusting buckle to enable the second clamping head to be located on the lower side of the blocking edge, the adjusting buckle is prevented from falling off from the clamping groove, and a good positioning effect is achieved on the adjusting buckle.
In the mechanical temperature compensation gas meter, the adjusting disc is fixedly connected with a limit pin which protrudes out of the upper end face of the adjusting disc, and the limit pin is located on the side part of the shifting fork and the other end of the shifting fork can abut against the limit pin. Through setting up foretell spacer pin, effectively avoid the shift fork to excessively rotate, make the better reliable advantage of work.
In the mechanical temperature compensation gas meter, the adjusting disc is provided with a convex clamping body, and one side of the clamping body is provided with a clamping groove for the lateral part of the shifting fork to be transversely inserted. One side embedding joint body of shift fork is in the joint inslot, has better spacing effect to the shift fork, avoids the shift fork to drop from the adjustment disk.
In the mechanical temperature compensation gas meter, a second positioning groove is formed in the upper end face of the adjusting disc, the thermosensitive bimetallic strip is in a vortex shape and is embedded in the second positioning groove. The thermosensitive bimetallic strip is in a vortex shape and is embedded in the second positioning groove, so that the thermosensitive bimetallic strip positioning device has the advantages of compact structure and good positioning effect on the thermosensitive bimetallic strip.
In foretell mechanical type temperature compensation gas table, the tank bottom of positioning groove two be equipped with the joint hole, the joint hole on be equipped with the elasticity dop, the middle part of dop be equipped with the bar breach of the one end embedding of heat-sensitive bimetallic strip, just the lower extreme card of elasticity dop establish on the joint hole. By adopting the connection mode, the connecting device has the advantages of convenient connection and better positioning effect on the thermosensitive bimetallic strip.
Compared with the prior art, this mechanical type temperature compensation gas table has following advantage:
1. the distance from the center of the adjusting disc to the hinge point of the link mechanism and the shifting fork is adjusted through the link mechanism by adopting a thermosensitive bimetallic strip, so that the metering error of the gas meter is corrected, and the gas meter has the advantages of more accurate temperature compensation and stable and reliable work;
2. the clamping head penetrates through the first connecting rod and the second connecting rod, so that the first connecting rod and the second connecting rod are hinged with the shifting fork, and the clamping head has the advantages of convenience in connection and good positioning effect;
3. when the adjusting buckle is inserted into the adjusting disc, the clamping head enters the clamping groove and rotates the clamping adjusting buckle to enable the clamping head to be positioned at the lower side of the blocking edge, so that the adjusting buckle is prevented from falling off from the clamping groove, and a good positioning effect is achieved on the adjusting buckle;
4. one side embedding joint body of shift fork is in the joint inslot, has better spacing effect to the shift fork, avoids the shift fork to drop from the adjustment disk.
Drawings
Fig. 1 is a schematic perspective view of a gas meter with the temperature compensation core set.
Fig. 2 is an exploded schematic view of the mechanical temperature compensation gas meter.
Fig. 3 is a schematic plan view of the mechanical temperature compensation gas meter.
Fig. 4 is a front view of the adjustment disk of the mechanical temperature compensation core set.
In the figure, 1, a movement body; 2. adjusting the disc; 2a, a chute; 2b, positioning a groove; 2c, a clamping groove; 2d, positioning a second groove; 2e, a clamping hole; 2f, a clamping body; 2g, clamping grooves; 2i, a crank gear; 3. a link mechanism; 3a, a first traction arm; 3b, a second traction arm; 3b, a first connecting rod; 3d, a second connecting rod; 4. a shifting fork; 4a, a clamping head; 4a1, a conical nose; 4b, sliding head; 4c, positioning convex bodies; 5. a thermally sensitive bimetallic strip; 6. adjusting buckles; 6a, a second chuck; 7. a spacing pin; 8. an elastic chuck; 9. a strip-shaped notch; 10. a watch case; 11. a first upright post; 12. a second upright post; 13. an intermediate wheel; 14. a transmission gear; 15. rotating the valve; 16. a first membrane; 17. and a second membrane.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, a mechanical temperature compensation gas meter, including watchcase 10, be equipped with diaphragm and stand in the watchcase 10, the diaphragm can drive the stand and rotate, be equipped with core body 1 on the watchcase 10, be equipped with in the core body 1 and can rotate adjusting plate 2, be equipped with link mechanism 3 in the core body 1, link mechanism 3's one end links firmly with the stand mutually, be equipped with wobbling shift fork 4 on the adjusting plate 2, be equipped with spout 2a on the adjusting plate 2, the one end downside of shift fork 4 is equipped with convex slippery fellow 4b, and slippery fellow 4b inlays in spout 2 a. The other end of the link mechanism 3 is hinged to one end of the shifting fork 4, the hinged point of the link mechanism 3 and the shifting fork 4 is located on one side of the center of the adjusting disc 2, the link mechanism 3 can drive the adjusting disc 2 to rotate, the adjusting disc 2 is provided with the thermosensitive bimetallic strip 5, one end of the thermosensitive bimetallic strip 5 is fixedly connected to the adjusting disc 2, the other end of the thermosensitive bimetallic strip 5 is fixedly connected to the other end of the shifting fork 4, and the thermosensitive bimetallic strip 5 can drive the shifting fork 4 to move.
The lower side of the adjusting disc 2 is provided with a crank gear 2i, an idle wheel 13 and a transmission gear 14 are axially and fixedly connected to the gas meter, the idle wheel 13 is meshed with the crank gear 2i and the transmission gear 14, the transmission gear 14 is in transmission connection with a counter of the gas meter, the gas meter further comprises a first diaphragm 16 and a second diaphragm 17, the first diaphragm 16 is connected with a first upright post 11, and the second diaphragm 17 is connected with a second upright post 12. The link mechanism 3 comprises a first traction arm 3a, a second traction arm 3b, a first connecting rod 3c and a second connecting rod 3d, one end of the first traction arm 3a is fixedly connected with the first upright post 11, one end of the second traction arm 3b is fixedly connected with the second upright post 12, one end of the first connecting rod 3c and one end of the second connecting rod 3d are hinged to the shifting fork 4, the other end of the first traction arm 3a is hinged to the other end of the first connecting rod 3c, and the other end of the second traction arm 3b is hinged to the other end of the second connecting rod 3 d.
One end of the first connecting rod 3c and one end of the second connecting rod 3d are provided with through connecting holes, one end of the shifting fork 4 is provided with a convex clamping head 4a, and the clamping head 4a penetrates through the connecting holes of the first connecting rod 3c and the second connecting rod 3 d. The outer end of the clamping head 4a is provided with a conical raised head 4a1, and the conical raised body passes through the connecting hole, so that the clamping head 4a, the first connecting rod 3c and the second connecting rod 3d are hinged, and the connecting rod has the advantages of convenience in disassembly and assembly and good connecting effect.
One side of the other end of the shifting fork 4 is provided with a convex positioning convex body 4c, the adjusting disc 2 is provided with a positioning groove 2b, and the positioning convex body 4c is embedded on the positioning groove 2b, so that the other end of the shifting fork 4 is hinged with the adjusting disc 2, and the adjusting disc has the advantages of simple structure and convenience in assembly.
An adjusting buckle 6 is inserted into one side of the axis of the adjusting disc 2, the lower end of the adjusting buckle 6 can be inserted into the valve body of the rotary valve 15, a convex second clamping head 6a is arranged on the side portion of the adjusting buckle 6, and a clamping groove 2c for embedding the second clamping head 6a is formed in the adjusting disc 2. Seted up air inlet and gas outlet on the rotary valve 15, the adjustment is detained the lower extreme of 6 and is inserted on the valve body of rotary valve 15, the rotation of adjustment disk 2 can detain 6 rotations that drive rotary valve 15 through the adjustment and realize opening and closing of air inlet and gas outlet, thereby realize controlling the air input of air inlet and the air output of gas outlet, two 6a of dop are embedded into draw-in groove 2c, make the adjustment detain 6 and link to each other with adjustment disk 2, have simple structure and connect convenient advantage. The second chuck 6a is semicircular, a blocking edge is arranged at the notch of the clamping groove 2c, and the second chuck 6a can be located on the lower side of the blocking edge. When the adjusting buckle 6 is inserted into the adjusting disc 2, the second clamping head 6a enters the clamping groove 2c and rotates the adjusting buckle 6 to enable the second clamping head 6a to be located on the lower side of the blocking edge, so that the adjusting buckle 6 is prevented from falling off from the clamping groove 2c, and a good positioning effect is achieved on the adjusting buckle 6.
The adjusting disc 2 is fixedly connected with a limiting pin 7, the limiting pin 7 protrudes out of the upper end face of the adjusting disc 2, the limiting pin 7 is located on the side portion of the shifting fork 4, the other end of the shifting fork 4 can abut against the limiting pin 7, excessive rotation of the shifting fork 4 is effectively avoided, and work is better and reliable. Be equipped with convex joint body 2f on the adjustment disk 2, one side of the joint body 2f is equipped with the lateral part of confession shift fork 4 and transversely inserts joint groove 2g, has better spacing effect to shift fork 4, avoids shift fork 4 to drop from adjustment disk 2.
The up end of adjustment disc 2 is equipped with positioning groove two 2d, temperature sensing bimetallic strip 5 is vortex form and temperature sensing bimetallic strip 5 inlays in positioning groove two 2d, the tank bottom of positioning groove two 2d is equipped with joint hole 2e, be equipped with elasticity dop 8 on the joint hole 2e, the middle part of elasticity dop 8 is equipped with the strip breach 9 that supplies the one end embedding of temperature sensing bimetallic strip 5, and the lower extreme card of elasticity dop 8 is established on joint hole 2e, have the connection convenience and to the better advantage of the location effect of temperature sensing bimetallic strip 5.
When the gas meter works, the first diaphragm 16 and the second diaphragm 17 swing to drive the corresponding first connecting rod 3c and the corresponding second connecting rod 3d to rotate through the first upright post 11 and the second upright post 12 respectively, then the shifting fork 4 drives the adjusting disc 2 to rotate, the crank gear 2i of the adjusting disc 2 drives the transmission gear 14 to rotate through the intermediate wheel 13, and the transmission gear 14 drives the counter to count. Seted up air inlet and gas outlet on the rotary valve 15, the adjustment is detained the lower extreme of 6 and is inserted on the valve body of rotary valve 15, the rotation of adjustment disk 2 can detain 6 rotations that drive rotary valve 15 through the adjustment and realize opening and closing of air inlet and gas outlet, thereby realize controlling the air input of air inlet and the air output of gas outlet, two 6a of dop are embedded into draw-in groove 2c, make the adjustment detain 6 and link to each other with adjustment disk 2, have simple structure and connect convenient advantage. The working process can refer to a diaphragm gas meter transmission mechanism (application number: 201520964890.8).
When the temperature outside the gas meter is 20 ℃ which is the standard temperature, the distance from the center of the adjusting disc 2 to the hinge joint of the link mechanism 3 and the shifting fork 4 is L; when the temperature is lower than 20 ℃, the thermal sensitive bimetallic strip 5 retracts according to the expansion caused by heat and contraction caused by cold of the thermal sensitive bimetallic strip 5, the shifting fork 4 is driven to rotate, the center distance L is reduced, the swing distance L1 between the first diaphragm 16 and the second diaphragm 17 is reduced through the connecting rod mechanism 3, the corresponding rotary volume is reduced, and the purpose of correcting the metering error of the gas meter is achieved; when the temperature is higher than 20 ℃, the heat-sensitive bimetallic strip 5 pushes the shifting fork 4 to rotate, so that the center distance L is increased, the swing distance L1 between the first diaphragm 16 and the second diaphragm 17 is increased through the link mechanism 3, the corresponding rotation volume is increased, and the purpose of correcting the metering error of the gas meter is achieved. Adopt temperature sensing bimetallic strip 5 to adjust the center of adjusting disk 2 through link mechanism 3 and to the distance of the pin joint of link mechanism 3 and shift fork 4, realize revising gas table metering error, have that temperature compensation is comparatively accurate and reliable advantage of job stabilization. The mechanical temperature compensation gas meter is also suitable for a slide valve type gas meter.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the movement body 1, the adjusting disk 2, the sliding groove 2a, the positioning groove 2b, the locking groove 2c, the second positioning groove 2d, the locking hole 2e, the locking body 2f, the locking groove 2g, the crank gear 2i, the link mechanism 3, the first traction arm 3a, the second traction arm 3b, the first connection rod 3c, the second connection rod 3d, the fork 4, the chuck 4a, the cone nose 4a1, the slider 4b, the positioning protrusion 4c, the thermal bimetal 5, the adjusting buckle 6, the chuck two 6a, the limit pin 7, the elastic chuck 8, the strip notch 9, the gas meter, the meter case 10, the column one 11, the column two 12, the intermediate wheel 13, the transmission gear 14, the rotary valve 15, the diaphragm one 16, the diaphragm two 17, etc. are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. A mechanical temperature compensation gas meter comprises a meter shell (10), wherein a diaphragm and a stand column are arranged in the meter shell (10), the diaphragm can drive the stand column to rotate, a core body (1) is arranged on the meter shell, and a rotatable adjusting disc (2) is arranged in the core body (1), the mechanical temperature compensation gas meter is characterized in that a connecting rod mechanism (3) is arranged in the core body (1), one end of the connecting rod mechanism (3) is fixedly connected with the stand column, a swinging shifting fork (4) is arranged on the adjusting disc (2), the other end of the connecting rod mechanism (3) is hinged with one end of the shifting fork (4), a hinged point of the connecting rod mechanism (3) and the shifting fork (4) is positioned at one side of the center of the adjusting disc (2), and the connecting rod mechanism (3) can drive the adjusting disc (2) to rotate, the adjusting plate (2) on be equipped with temperature sensing bimetallic strip (5), the one end of temperature sensing bimetallic strip (5) link firmly adjusting plate (2) on, the other end of temperature sensing bimetallic strip (5) with the other end of shift fork (4) link firmly just temperature sensing bimetallic strip (5) can drive shift fork (4) and remove.
2. The mechanical temperature compensation gas meter according to claim 1, the watch case (10) is internally provided with a first diaphragm and a second diaphragm, the first diaphragm is connected with a first upright post (11), the diaphragm II is connected with an upright post II (12), the connecting rod mechanism (3) comprises a traction arm I (3a), a traction arm II (3b), a connecting rod I (3c) and a connecting rod II (3d), one end of the first traction arm (3a) is fixedly connected with the first upright post (11), one end of the second traction arm (3b) is fixedly connected with the second upright post (12), one end of the first connecting rod (3c) and one end of the second connecting rod (3d) are hinged on the shifting fork (4), the other end of the first traction arm (3a) is hinged with the other end of the first connecting rod (3c), the other end of the second traction arm (3b) is hinged with the other end of the second connecting rod (3 d).
3. The mechanical temperature compensation gas meter according to claim 2, wherein one end of the first connecting rod (3c) and one end of the second connecting rod (3d) have through connecting holes, one end of the shift fork (4) has a protruding chuck (4a) and the chuck (4a) passes through the connecting holes of the first connecting rod (3c) and the second connecting rod (3 d).
4. A mechanical temperature compensated gas meter as claimed in claim 3 wherein the outer end of the said chuck (4a) has a conical projection (4a1) which passes through the said attachment hole.
5. The mechanical temperature compensation gas meter according to claim 1, 2, 3 or 4, wherein the adjusting plate (2) is provided with a sliding groove (2a), a protruding sliding head (4b) is arranged at the lower side of one end of the shifting fork (4), and the sliding head (4b) is embedded in the sliding groove (2 a).
6. The mechanical temperature compensation gas meter according to claim 1, 2, 3 or 4, wherein one side of the other end of the shifting fork (4) is provided with a protruding positioning convex body (4c), the adjusting disc (2) is provided with a positioning groove (2b), and the positioning convex body (4c) is embedded in the positioning groove (2 b).
7. The mechanical temperature compensation gas meter according to claim 1, 2, 3 or 4, wherein an adjusting buckle (6) is inserted into one side of the axis of the adjusting disk (2), the lower end of the adjusting buckle (6) can be inserted into the valve body of the rotary valve, a protruding second chuck (6a) is arranged on the side of the adjusting buckle (6), a clamping groove (2c) for the second chuck (6a) to be embedded into is formed in the adjusting disk (2), the second chuck (6a) is semicircular, a blocking edge is arranged at the notch of the clamping groove (2c), and the second chuck (6a) can be located on the lower side of the blocking edge.
8. The mechanical temperature compensation gas meter according to claim 1, 2, 3 or 4, wherein the adjusting disk (2) is fixedly connected with a limit pin (7), the limit pin (7) protrudes out of the upper end face of the adjusting disk (2), the limit pin (7) is located on the side portion of the shifting fork (4), and the other end of the shifting fork (4) can abut against the limit pin (7).
9. The mechanical temperature compensation gas meter according to claim 1, 2, 3 or 4, wherein the adjusting plate (2) is provided with a protruding clamping body (2f), and one side of the clamping body (2f) is provided with a clamping groove (2g) for the lateral part of the shifting fork (4) to be transversely inserted.
10. The mechanical temperature compensation gas meter according to claim 1, 2, 3 or 4, wherein a second positioning groove (2d) is formed in the upper end face of the adjusting disc (2), the thermal bimetal (5) is in a vortex shape, the thermal bimetal (5) is embedded in the second positioning groove (2d), a clamping hole (2e) is formed in the bottom of the second positioning groove (2d), an elastic clamping head (8) is arranged on the clamping hole (2e), a strip-shaped notch (9) for embedding one end of the thermal bimetal (5) is formed in the middle of the elastic clamping head (8), and the lower end of the elastic clamping head (8) is clamped in the clamping hole (2 e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109697.5A CN112798067A (en) | 2019-11-14 | 2019-11-14 | Mechanical temperature compensation gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109697.5A CN112798067A (en) | 2019-11-14 | 2019-11-14 | Mechanical temperature compensation gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112798067A true CN112798067A (en) | 2021-05-14 |
Family
ID=75803444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911109697.5A Pending CN112798067A (en) | 2019-11-14 | 2019-11-14 | Mechanical temperature compensation gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112798067A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201037778Y (en) * | 2007-05-31 | 2008-03-19 | 林茂波 | Membrane type combustion gas meter with rotary valve mechanism |
| JP2010091488A (en) * | 2008-10-10 | 2010-04-22 | Ricoh Elemex Corp | Diaphragm type gas meter |
| CN201463953U (en) * | 2009-07-29 | 2010-05-12 | 重庆前卫仪表厂 | Film type gas meter with dramatic turning volume |
| CN201463957U (en) * | 2009-07-29 | 2010-05-12 | 重庆前卫仪表厂 | Crank adjusting mechanism of membrane type gas meter |
| CN203758566U (en) * | 2014-03-13 | 2014-08-06 | 浙江三洲燃气表有限公司 | Diaphragm gas meter with concealed type mechanical temperature conversion device |
| CN205118405U (en) * | 2015-11-26 | 2016-03-30 | 浙江正泰仪器仪表有限责任公司 | Diaphragm type gas table drive mechanism |
| CN105784048A (en) * | 2016-05-17 | 2016-07-20 | 成都秦川科技发展有限公司 | Diaphragm type gas meter |
| CN205919863U (en) * | 2016-06-30 | 2017-02-01 | 浙江松川仪表科技股份有限公司 | Device is prevented invering by diaphragm type gas table |
| CN206311157U (en) * | 2016-12-19 | 2017-07-07 | 上海真兰仪表科技股份有限公司 | A kind of gas meter, flow meter crank gear component with mechanical temperature compensation |
| CN207395834U (en) * | 2017-09-28 | 2018-05-22 | 四川海力智能科技股份有限公司 | Diaphragm gas meter mechanical temperature compensation component |
| CN207515860U (en) * | 2017-11-24 | 2018-06-19 | 四川海力智能科技股份有限公司 | Hidden type temperature compensation membrane type gas meter movement |
-
2019
- 2019-11-14 CN CN201911109697.5A patent/CN112798067A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201037778Y (en) * | 2007-05-31 | 2008-03-19 | 林茂波 | Membrane type combustion gas meter with rotary valve mechanism |
| JP2010091488A (en) * | 2008-10-10 | 2010-04-22 | Ricoh Elemex Corp | Diaphragm type gas meter |
| CN201463953U (en) * | 2009-07-29 | 2010-05-12 | 重庆前卫仪表厂 | Film type gas meter with dramatic turning volume |
| CN201463957U (en) * | 2009-07-29 | 2010-05-12 | 重庆前卫仪表厂 | Crank adjusting mechanism of membrane type gas meter |
| CN203758566U (en) * | 2014-03-13 | 2014-08-06 | 浙江三洲燃气表有限公司 | Diaphragm gas meter with concealed type mechanical temperature conversion device |
| CN205118405U (en) * | 2015-11-26 | 2016-03-30 | 浙江正泰仪器仪表有限责任公司 | Diaphragm type gas table drive mechanism |
| CN105784048A (en) * | 2016-05-17 | 2016-07-20 | 成都秦川科技发展有限公司 | Diaphragm type gas meter |
| CN205919863U (en) * | 2016-06-30 | 2017-02-01 | 浙江松川仪表科技股份有限公司 | Device is prevented invering by diaphragm type gas table |
| CN206311157U (en) * | 2016-12-19 | 2017-07-07 | 上海真兰仪表科技股份有限公司 | A kind of gas meter, flow meter crank gear component with mechanical temperature compensation |
| CN207395834U (en) * | 2017-09-28 | 2018-05-22 | 四川海力智能科技股份有限公司 | Diaphragm gas meter mechanical temperature compensation component |
| CN207515860U (en) * | 2017-11-24 | 2018-06-19 | 四川海力智能科技股份有限公司 | Hidden type temperature compensation membrane type gas meter movement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2227382T3 (en) | PROCEDURE FOR PREPARATION OF MIXING WATER. | |
| US8292494B2 (en) | Method of calibrating a knob for use with an adjustable control device and a knob calibrated thereby | |
| JPS5831507B2 (en) | On Erase Ikon Gouben | |
| SE449782B (en) | DEVICE FOR TEMPOR MIXING VALVES OPENING THE FLOOD | |
| CA1045099A (en) | Thermostat unit for central heating radiators | |
| SE427056B (en) | CONTROL DEVICE FOR WINDOWS, DOORS AND SOON | |
| CN112798067A (en) | Mechanical temperature compensation gas meter | |
| CN206258196U (en) | A kind of bimetallic thermometer | |
| CN201463957U (en) | Crank adjusting mechanism of membrane type gas meter | |
| US3741476A (en) | Pneumatic thermostat | |
| EP1426696B1 (en) | A regulator valve with flow indicator for a hot-water heating system | |
| CN108548002B (en) | A kind of temperature digital display thermostatic control valve | |
| EP0949486A2 (en) | Two-way valve for regulating and measuring the flow rate of a fluid | |
| US3089505A (en) | Slide type mixing valve with interchangeable inlet and outlet connections | |
| US2825506A (en) | Draft regulator | |
| CN210153279U (en) | Coaxial double-control thermostatic valve core | |
| CN207527067U (en) | A kind of thermostatic valve | |
| WO2006057976B1 (en) | Tamper resistant temperature dial and associated method of use | |
| US20200249629A1 (en) | Adjustable sundial assembly | |
| CN209213084U (en) | A kind of dual control stem structure of thermostatic valve | |
| US3371532A (en) | Temperature-compensating crank assembly for gas meters | |
| KR101900007B1 (en) | Pressure gauge capable of controlling zero point | |
| KR200379169Y1 (en) | A balancing globe valve for controled warm water | |
| CN220551537U (en) | Temperature regulating valve core for replacing constant temperature valve core | |
| US3362223A (en) | Gas meter crank assembly having thermally-responsive compensating means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210514 |