CN205118405U - Diaphragm type gas table drive mechanism - Google Patents
Diaphragm type gas table drive mechanism Download PDFInfo
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- CN205118405U CN205118405U CN201520964890.8U CN201520964890U CN205118405U CN 205118405 U CN205118405 U CN 205118405U CN 201520964890 U CN201520964890 U CN 201520964890U CN 205118405 U CN205118405 U CN 205118405U
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- rotary valve
- shift fork
- gas meter
- connecting rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims description 64
- 239000000758 substrate Substances 0.000 claims description 13
- 239000000567 combustion gas Substances 0.000 claims description 10
- 210000000981 epithelium Anatomy 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model discloses a diaphragm type gas table drive mechanism, include that commentaries on classics disk seat, commentaries on classics valve gap, core support, first rocking handle, second rocking handle, first vertical scroll, second vertical scroll, first connecting rod, second connecting rod, first arm, the second of affecting affect arm, crank gear structure, idle wheel and drive gear, crank gear structure axle includes crank gear, crank gear shaft and crank axle, changes the valve gap and sets up the location blind hole near the one side of crank gear, the crank gear shaft passes the positioning hole of core support along vertical direction, extend to the location blind hole in, the one end that stretches into the location blind hole is connected with the shift fork that extends along the horizontal direction, changes the shift fork groove that the valve gap shaping has the holding shift fork, the shift fork is rotatory along with the crank gear shaft to it changes the valve gap rotation to drive, the diameter of crank gear shaft and positioning hole's diameter phase -match, positioning hole's pore wall is extended to the location blind hole by the support base plate in, the external diameter of pore wall and the diameter phase -match of location blind hole. The utility model discloses location to changeing the valve gap is more accurate.
Description
Technical field
The utility model relates to gas meter technical field, is specifically related to a kind of diaphragm gas meter driving mechanism.
Background technique
The diaphragm gas meter of current manufacture and usage, mainly be divided into rotary-type diaphragm gas meter and sliding-type diaphragm gas meter, wherein, rotary-type diaphragm gas meter is more conventional, mainly by the rotation of rotary valve lid relative to rotary valve seat, distributes the flow entering gas, gas is made to enter measuring room in order, to be moved back and forth outputting power by the rubber film component part of measuring room inside, therefore, between rotary valve lid and rotary valve seat, good sealing effect will be kept.The rotary valve lid of existing diaphragm gas meter, normally rotate under the drive of central rotating shaft, described central rotating shaft and link gear affixed, and extend to described rotary valve seat through described rotary valve lid, the structural type of this central rotating shaft, due to described rotary valve lid can be passed completely through, therefore can make to cause sealing effect poor because of leaking between rotary valve seat and rotary valve lid, and then the metric results of impact table.
Chinese patent literature CN202126282U discloses a kind of film type gas meter valve rotary valve cover rotation center positioning structure, comprises core body, valve cap rotary valve seat, valve cap rotary valve, core rack, valve rotary valve cover centralized positioning shifting shaft and crank gear central shaft etc.Wherein, described valve rotary valve cover centralized positioning shifting shaft is arranged on limit, core rack lower end surface, and coordinate with crank gear central shaft assemble by certain angle, lower end is arranged on valve cap rotary valve, simultaneously, valve cap rotary valve center of rotation is with this locating rotation, and the shifting shaft of valve rotary valve cover centralized positioning shifting shaft is arranged on valve cap rotary valve and stirs accordingly in groove.Described valve cap rotary valve upper surface offers groove, and described shifting shaft is placed in described groove.Although technological scheme valve cap rotary valve disclosed in this patent documentation no longer offers through hole, but valve cap rotary valve is by coordinating with described shifting shaft, the mode that described shifting shaft coordinates with described core rack again, indirectly realize location between described core rack, positioning error is larger, valve cap rotary valve is caused to occur when rotated moving radially, and then make situation about leaking air between valve cap rotary valve and valve cap rotary valve seat, dynamic sealing effect is poor, can have influence on the metric results of gas meter equally.
Model utility content
Therefore, the technical problems to be solved in the utility model is to overcome the metering effect defect not accurately that sealing effect difference between the rotary valve lid of diaphragm gas meter of the prior art and rotary valve seat causes gas meter, thus provides good sealing effect between a kind of rotary valve lid and rotary valve seat, gas meter to measure effect diaphragm gas meter driving mechanism accurately.
A kind of diaphragm gas meter driving mechanism of the present utility model, comprises
Rotary valve seat, is placed in diaphragm gas meter, offers suction port and air outlet;
Rotary valve lid, the lid of coupling is placed in above described rotary valve seat, and offers the breach entering for combustion gas or discharge, and can rotate control the air inflow of the described suction port of described rotary valve seat and the gas output of described air outlet relative to described rotary valve seat;
Core rack, affixed with the housing of described diaphragm gas meter, comprise the stent substrate forming positioning through hole;
First rocking handle and the second rocking handle, affixed with two epitheliums be arranged in described rotary valve seat respectively, and respectively at the drive lower swing of described epithelium;
First vertical shaft and the second vertical shaft, be placed on respectively take shape in described diaphragm gas watch wall trepanning in, and can to swing in described trepanning; First end and described first rocking handle of described first vertical shaft are affixed, and swing with described first rocking handle one; First end and described second rocking handle of described second vertical shaft are affixed, and swing with described second rocking handle one;
First connecting rod and second connecting rod, the second end of described first connecting rod and described first vertical shaft is affixed, and swings with described first vertical shaft one; Second end of described second connecting rod and described second vertical shaft is affixed, and swings with described second vertical shaft one;
First affects arm and second to affect arm, and described first affects arm one end and described first connecting rod is hinged and at the drive lower swing of described first connecting rod, the other end offers first and affects through hole; Described second affects arm one end and described second connecting rod is hinged and at the drive lower swing of described second connecting rod, the other end offers second and affects through hole;
Crank gear structure, comprise crank gear, crank gear axle and crankshaft, described crankshaft bias take shape in the side of described crank gear away from described rotary valve lid, described first affects through hole and described second to affect through hole to be all set in described crankshaft, and described crankshaft can be driven to rotate around described crank gear axle place straight line, described crank gear and described crank gear axle rotate integrally with described crankshaft;
Idle wheel, engages with described crank gear, rotates under the drive of described crank gear;
Driving gear, engages with described idle wheel, rotates under the drive of described idle wheel, and is connected with the counter of gas meter, and the described counter that rotarily drives of described driving gear measures combustion gas;
Described rotary valve lid offers Blind locating holes near the one side of described crank gear;
Described crank gear axle takes shape in the side of described crank gear near described rotary valve lid, and vertically through the described positioning through hole of described core rack, extend in described Blind locating holes, one end that described crank gear shaft extension enters described Blind locating holes is connected with the shift fork extended in the horizontal direction, the fork slot of what described rotary valve lid was corresponding form accommodating described shift fork, described shift fork rotates with described crank gear axle, and drives described rotary valve lid to rotate;
The diameter of described crank gear axle and the diameter of described positioning through hole match;
The hole wall of described positioning through hole extends in described Blind locating holes by described stent substrate, and the external diameter of described hole wall and the diameter of described Blind locating holes match.
Described shift fork is threaded connection part with described crank gear axle and is connected.
One end that described crank gear shaft extension enters described Blind locating holes also extends and is connected with lining, and described lining to be placed in described Blind locating holes and to rotate with described crank gear axle, and the diameter of external diameter and described Blind locating holes matches.
Described lining is connected with described crank gear axle by described threaded connector, and described shift fork is between described lining and described crank gear axle.
Described lining comprises diapire and perisporium, described threaded connector comprises integrated screw section and engagement portion, described screw section screws togather with described shift fork, described crank gear axle successively through described diapire, and described engagement portion fastens in the side of described diapire away from described shift fork.
Described threaded connector is screw or bolt.
One end of the close described counter of the described stent substrate of described core rack is one-body molded the first driving cog wheel seat, one end away from described counter is one-body molded the second driving cog wheel seat, and described driving gear is selectively installed on described first driving cog wheel seat or described second driving cog wheel seat.
Technical solutions of the utility model, tool has the following advantages:
1. the diaphragm gas meter driving mechanism that provides of the utility model, diaphragm gas meter driving mechanism of the present utility model, the rotation location realizing rotary valve lid in the Blind locating holes of rotary valve lid is directly extended to by the hole wall of core rack, location is realized by third party's component compared with needing between existing core rack and rotary valve lid, the utility model decreases the mismatch error with third party's component, locate more accurate, can effectively prevent rotary valve from covering moving radially in rotary course, and then the gas leakage preventing between rotary valve lid and rotary valve seat, make that there is good dynamic seal (packing) between the two, ensure that the metric results of diaphragm gas meter is more accurate.In addition, shift fork extends in the horizontal direction, and is placed in the fork slot of rotary valve lid, contacts fully with fork slot, and shift fork rotates at self place horizontal plane, so when shift fork drives rotary valve lid to rotate, and stressed more even between shift fork and rotary valve lid.
2. the diaphragm gas meter driving mechanism that provides of the utility model, described shift fork is threaded connection part with described crank gear axle and is connected.This Placement connects reliable, not easily occurs to loosen in shift fork rotary course, and convenient disassembly.
3. the diaphragm gas meter driving mechanism that provides of the utility model, one end that described crank gear shaft extension enters described Blind locating holes also extends and is connected with lining, described lining to be placed in described Blind locating holes and to rotate with described crank gear axle, and the diameter of external diameter and described Blind locating holes matches.Due to lining and crank gear axle affixed, so the setting of described lining, the overall structure that lining and crank gear axle are connected into is stamped sufficient cooperation with rotary valve, adds the locating effect to rotary valve lid, makes the rotation of rotary valve lid more stable.
4. the diaphragm gas meter driving mechanism that provides of the utility model, one end of the close described counter of the described stent substrate of described core rack is one-body molded the first driving cog wheel seat, one end away from described counter is one-body molded the second driving cog wheel seat, and described driving gear is selectively installed on described first driving cog wheel seat or described second driving cog wheel seat.Compared with existing driving cog wheel seat and core rack is provided separately and be arranged on respectively on the housing of diaphragm gas meter, the stent substrate of driving cog wheel seat of the present utility model and core rack is one-body molded, and integral installation is on the housing of diaphragm gas meter, make the installation of driving cog wheel seat and core rack and diaphragm gas watch wall all more firm, effectively can ensure the measuring accuracy of diaphragm gas meter.In addition, the utility model forms driving cog wheel seat respectively in core rack one end near counter and the one end away from counter, does not need to dismantle driving cog wheel seat, can meet demand driving gear being arranged on core rack's not homonymy.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is mode of executions more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The partial sectional view of diaphragm gas meter driving mechanism of Fig. 1 for providing in the first mode of execution of the present utility model;
Fig. 2 is the partial enlarged drawing of the diaphragm gas meter driving mechanism shown in Fig. 1;
Fig. 3 is the plan view of the diaphragm gas meter driving mechanism shown in Fig. 1;
Fig. 4 is the side view of the clipped component of the diaphragm gas meter driving mechanism shown in Fig. 1;
Fig. 5 is the stereogram of the core rack of the diaphragm gas meter driving mechanism shown in Fig. 1;
Description of reference numerals:
1-rotary valve seat, 2-rotary valve lid, 22-Blind locating holes, 23-fork slot, 3-core rack, 31-stent substrate, 311-positioning through hole, 312-hole wall, 313-first driving cog wheel seat, 314-second driving cog wheel seat, 41-first rocking handle, 42-second rocking handle, 51-first vertical shaft, 52-second vertical shaft, 61-first connecting rod, 62-second connecting rod, 71-first affects arm, 711-first affects through hole, 72-second affects arm, 721-second affects through hole, 81-crank gear, 82 crank gear axles, 83-crankshaft, 9-idle wheel, 10-driving gear, 20-shift fork, 30-threaded connector, 301-screw section, 302-engagement portion, 40-lining, 401-diapire, 402-perisporium,
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In addition, if below in the described different mode of execution of the utility model involved technical characteristics do not form conflict each other and just can be combined with each other.
As depicted in figs. 1 and 2, a kind of diaphragm gas meter driving mechanism of the present utility model, comprises
Rotary valve seat 1, is placed in diaphragm gas meter, offers suction port and air outlet;
Rotary valve lid 2, the lid of coupling is placed in above described rotary valve seat 1, and offers the breach entering for combustion gas or discharge, and can rotate control the air inflow of the described suction port of described rotary valve seat 1 and the gas output of described air outlet relative to described rotary valve seat 1;
Core rack 3, affixed with the housing of described diaphragm gas meter, comprise the stent substrate 31 forming positioning through hole 311;
As shown in Figure 3, the first rocking handle 41 and the second rocking handle 42, affixed with two epitheliums be arranged in described rotary valve seat respectively, and respectively at the drive lower swing of described epithelium;
First vertical shaft 51 and the second vertical shaft 52, be placed on respectively take shape in described diaphragm gas watch wall trepanning in, and can to swing in described trepanning; First end and described first rocking handle 41 of described first vertical shaft 51 are affixed, and swing with described first rocking handle 41 one; First end and described second rocking handle 42 of described second vertical shaft 52 are affixed, and swing with described second rocking handle 42 one;
As shown in Figure 4, first connecting rod 61 and second connecting rod 62, described first connecting rod 61 is affixed with the second end of described first vertical shaft 51, and swings with described first vertical shaft 51 one; Described second connecting rod 62 is affixed with the second end of described second vertical shaft 52, and swings with described second vertical shaft 52 one;
First affects arm 71 and second to affect arm 72, and described first affects arm 71 one end and described first connecting rod 61 is hinged and at the drive lower swing of described first connecting rod 61, the other end offers first and affects through hole 711; Described second affects arm 72 one end and described second connecting rod 62 is hinged and at the drive lower swing of described second connecting rod 62, the other end offers second and affects through hole 721;
Crank gear structure, comprise crank gear 81, crank gear axle 82 and crankshaft 83, described crankshaft 83 bias take shape in the side of described crank gear 81 away from described rotary valve lid 2, described first affects through hole 711 and described second to affect through hole 721 to be all set in described crankshaft 83, and described crankshaft 83 can be driven to rotate, described crank gear 81 and described crank gear axle 82 rotate integrally with described crankshaft 83;
Idle wheel 9, engages with described crank gear 81, rotates under the drive of described crank gear 81;
Driving gear 10, engages with described idle wheel 9, rotates, and be connected with the counter of gas meter under the drive of described idle wheel 9, and the described counter that rotarily drives of described driving gear measures combustion gas;
Described rotary valve lid 2 offers Blind locating holes 22 near the one side of described crank gear 81;
Described crank gear axle 82 takes shape in the side of described crank gear 81 near described rotary valve lid 2, and vertically through the described positioning through hole 311 of described core rack 3, extend in described Blind locating holes 22, one end that described crank gear axle 82 stretches into described Blind locating holes 22 is connected with the shift fork 20 extended in the horizontal direction, the fork slot 23 forming accommodating described shift fork 20 of described rotary valve lid 2 correspondence, described shift fork 20 rotates with described crank gear axle 82, and drives described rotary valve lid 2 to rotate;
The diameter of described crank gear axle 82 and the diameter of described positioning through hole 311 match;
The hole wall 312 of described positioning through hole 311 extends in described Blind locating holes 22 by described stent substrate, and the external diameter of described hole wall 312 and the diameter of described Blind locating holes 22 match.
The start process of diaphragm gas meter of the present utility model is as follows:
Combustion gas enters into the suction port of described rotary valve seat 1 through the described breach of described rotary valve lid 2 from suction tude, and then enter into described rotary valve seat 1, wherein said suction port and described air outlet have two respectively, the rotation of described rotary valve lid 1 makes described combustion gas alternately enter into described rotary valve seat 1 by two suction ports through described breach, and then make described epithelium double vibrations, thus driving described first rocking handle 41 and described second rocking handle 42 reciprocally swinging, the combustion gas in described rotary valve seat 1 can be discharged from described air outlet simultaneously.Because the first vertical shaft 51 two ends are affixed with the first rocking handle 41, first connecting rod 61 respectively, second vertical shaft 52 two ends are affixed with the second rocking handle 42, second connecting rod 62 respectively, so the reciprocally swinging of described first rocking handle 41, the first vertical shaft 51 reciprocally swinging together with first connecting rod 61 can be driven, and then to drive and first connecting rod 61 is hinged first affects arm 71 to swing; The reciprocally swinging of described second rocking handle 42, can drive the second vertical shaft 52 reciprocally swinging together with second connecting rod 62, and then drives, and then drives and second connecting rod 62 is hinged second affects arm 72 to swing.Due to first affect arm 71 and second affect arm 72 all be set in crankshaft 83, hinged with crankshaft 83, so first affects arm 71 and second to affect the swing of arm 72 that crankshaft 83 can be driven to rotate around described crank gear axle 82 place straight line, and then crank gear 81 is rotated together with crank gear axle 82.Wherein, the idle wheel 9 be engaged with that rotarily drives of crank gear 81 rotates, and then drives the driving gear 10 engaged with idle wheel 9 to rotate, thus the counter be connected with driving gear 10 is measured combustion gas; The shift fork 20 be attached thereto that rotarily drives of crank gear axle 82 rotates, and shift fork 20 and then drive rotary valve lid 2 rotate.
Diaphragm gas meter driving mechanism of the present utility model, the rotation location realizing rotary valve lid 2 in the Blind locating holes 22 of rotary valve lid 2 is directly extended to by the hole wall 312 of core rack 3, location is realized by third party's component compared with needing between existing core rack 3 and rotary valve lid 2, the utility model decreases the mismatch error with third party's component, locate more accurate, effectively can prevent rotary valve lid 2 moving radially in rotary course, and then the gas leakage preventing between rotary valve lid 2 and rotary valve seat 1, make that there is good dynamic seal (packing) between the two, ensure that the metric results of diaphragm gas meter is more accurate.
In addition, shift fork 20 extends in the horizontal direction, and is placed in the fork slot 23 of rotary valve lid 2, contact fully with fork slot 23, shift fork 20 rotates at self place horizontal plane, so when shift fork 20 drives rotary valve lid 2 to rotate, and stressed more even between shift fork 20 and rotary valve lid 2.
Concrete Placement between described shift fork 20 and described crank gear axle 82 can have multiple, can be such as form attachment post on shift fork 20, crank gear axle 82 starts attachment hole, and described attachment post and described attachment hole realize being connected in an interference fit.In the present embodiment, preferred described shift fork 20 is threaded connection part 30 with described crank gear axle 82 and is connected.This Placement connects reliable, not easily occurs to loosen in shift fork 20 rotary course, and convenient disassembly.
As improvement, one end that the axle of crank gear described in the present embodiment 82 stretches into described Blind locating holes 22 also extends and is connected with lining 40, described lining 40 to be placed in described Blind locating holes 22 and to rotate with described crank gear axle 82, and the diameter of external diameter and described Blind locating holes 22 matches.Because lining 40 and crank gear axle 82 are affixed, so the setting of described lining 40, the overall structure that lining 40 and crank gear axle 82 are connected into has sufficient cooperation with rotary valve lid 2, adds the locating effect to rotary valve lid 2, makes the rotation of rotary valve lid 2 more stable.
Particularly, described lining 40 is connected with described crank gear axle 82 by described threaded connector 30, and described shift fork 20 is between described lining 40 and described crank gear axle 82.
Described lining 40 comprises diapire 401 and perisporium 402, described threaded connector 30 comprises integrated screw section 301 and engagement portion 302, described screw section 301 screws togather with described shift fork 20, described crank gear axle 82 successively through described diapire 401, and described engagement portion 302 fastens in the side of described diapire 401 away from described shift fork 20.
The concrete form of described threaded connector 30 is unrestricted, such as, can be screw or bolt, or stud attaching nut, and in the present embodiment, described threaded connector 30 is screw.
As shown in Figure 5, as improvement, one end of the close described counter of the described stent substrate 31 of the described core rack 3 of the present embodiment is one-body molded the first driving cog wheel seat 313, one end away from described counter is one-body molded the second driving cog wheel seat 314, and described driving gear 10 is selectively installed on described first driving cog wheel seat 313 or described second driving cog wheel seat 314.Compared with existing driving cog wheel seat and core rack is provided separately and be arranged on respectively on the housing of diaphragm gas meter, the stent substrate 31 of driving cog wheel seat of the present utility model and core rack 3 is one-body molded, and integral installation is on the housing of diaphragm gas meter, make the installation of driving cog wheel seat and core rack and diaphragm gas watch wall all more firm, effectively can ensure the measuring accuracy of diaphragm gas meter.In addition, the utility model forms driving cog wheel seat respectively in core rack 3 one end near counter and the one end away from counter, does not need to dismantle driving cog wheel seat, can meet demand driving gear 10 being arranged on core rack 3 not homonymy.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (7)
1. a diaphragm gas meter driving mechanism, comprises
Rotary valve seat (1), is placed in diaphragm gas meter, offers suction port and air outlet;
Rotary valve lid (2), the lid of coupling is placed in described rotary valve seat (1) top, and offer the breach entering for combustion gas or discharge, the air inflow of described suction port and the gas output of described air outlet of described rotary valve seat (1) can be controlled relative to the rotation of described rotary valve seat (1);
Core rack (3), affixed with the housing of described diaphragm gas meter, comprise the stent substrate (31) forming positioning through hole (311);
First rocking handle (41) and the second rocking handle (42), affixed with two epitheliums be arranged in described rotary valve seat respectively, and respectively at the drive lower swing of described epithelium;
First vertical shaft (51) and the second vertical shaft (52), be placed on respectively take shape in described diaphragm gas watch wall trepanning in, and can to swing in described trepanning; First end and described first rocking handle (41) of described first vertical shaft (51) are affixed, and swing with described first rocking handle (41) one; First end and described second rocking handle (42) of described second vertical shaft (52) are affixed, and swing with described second rocking handle (42) one;
First connecting rod (61) and second connecting rod (62), described first connecting rod (61) is affixed with the second end of described first vertical shaft (51), and swings with described first vertical shaft (51) one; Described second connecting rod (62) is affixed with the second end of described second vertical shaft (52), and swings with described second vertical shaft (52) one;
First affects arm (71) and second to affect arm (72), described first affects arm (71) one end and described first connecting rod (61) is hinged and at the drive lower swing of described first connecting rod (61), the other end offers first and affects through hole (711); Described second affects arm (72) one end and described second connecting rod (62) is hinged and at the drive lower swing of described second connecting rod (62), the other end offers second and affects through hole (721);
Crank gear structure, comprise crank gear (81), crank gear axle (82) and crankshaft (83), what described crankshaft (83) was eccentric takes shape in the side of described crank gear (81) away from described rotary valve lid (2), described first affects through hole (711) and described second to affect through hole (721) to be all set in described crankshaft (83), and described crankshaft (83) can be driven to rotate around described crank gear axle (82) place straight line, described crank gear (81) and described crank gear axle (82) rotate integrally with described crankshaft (83),
Idle wheel (9), engages with described crank gear (81), rotates under the drive of described crank gear (81);
Driving gear (10), engages with described idle wheel (9), rotates under the drive of described idle wheel (9), and be connected with the counter of gas meter, and the described counter that rotarily drives of described driving gear measures combustion gas;
It is characterized in that:
Described rotary valve lid (2) offers Blind locating holes (22) near the one side of described crank gear (81);
Described crank gear axle (82) takes shape in the side of described crank gear (81) near described rotary valve lid (2), and vertically through the described positioning through hole (311) of described core rack (3), extend in described Blind locating holes (22), one end that described crank gear axle (82) stretches into described Blind locating holes (22) is connected with the shift fork (20) extended in the horizontal direction, the fork slot (23) forming accommodating described shift fork (20) that described rotary valve lid (2) is corresponding, described shift fork (20) rotates with described crank gear axle (82), and drive described rotary valve lid (2) to rotate,
The diameter of described crank gear axle (82) and the diameter of described positioning through hole (311) match;
The hole wall (312) of described positioning through hole (311) extends in described Blind locating holes (22) by described stent substrate, and the external diameter of described hole wall (312) and the diameter of described Blind locating holes (22) match.
2. diaphragm gas meter driving mechanism according to claim 1, is characterized in that: described shift fork (20) is threaded connection part (30) with described crank gear axle (82) and is connected.
3. diaphragm gas meter driving mechanism according to claim 2, it is characterized in that: one end that described crank gear axle (82) stretches into described Blind locating holes (22) also extends and is connected with lining (40), described lining (40) to be placed in described Blind locating holes (22) and to rotate with described crank gear axle (82), and the diameter of external diameter and described Blind locating holes (22) matches.
4. diaphragm gas meter driving mechanism according to claim 3, it is characterized in that: described lining (40) is connected with described crank gear axle (82) by described threaded connector (30), and described shift fork (20) is positioned between described lining (40) and described crank gear axle (82).
5. diaphragm gas meter driving mechanism according to claim 4, it is characterized in that: described lining (40) comprises diapire (401) and perisporium (402), described threaded connector (30) comprises integrated screw section (301) and engagement portion (302), described screw section (301) screws togather with described shift fork (20), described crank gear axle (82) successively through described diapire (401), and described engagement portion (302) fasten in the side of described diapire (401) away from described shift fork (20).
6. diaphragm gas meter driving mechanism according to claim 2, is characterized in that: described threaded connector (30) is screw or bolt.
7. diaphragm gas meter driving mechanism according to claim 1, it is characterized in that: one end of the close described counter of the described stent substrate (31) of described core rack (3) is one-body molded the first driving cog wheel seat (313), one end away from described counter is one-body molded the second driving cog wheel seat (314), and described driving gear (10) is selectively installed on described first driving cog wheel seat (313) or described second driving cog wheel seat (314).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964890.8U CN205118405U (en) | 2015-11-26 | 2015-11-26 | Diaphragm type gas table drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964890.8U CN205118405U (en) | 2015-11-26 | 2015-11-26 | Diaphragm type gas table drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118405U true CN205118405U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520964890.8U Active CN205118405U (en) | 2015-11-26 | 2015-11-26 | Diaphragm type gas table drive mechanism |
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| CN (1) | CN205118405U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168501A (en) * | 2016-07-15 | 2016-11-30 | 重庆市山城燃气设备有限公司 | The automatic diagnosis and alarming system of intelligent gas meter micro-leakage |
| CN106840299A (en) * | 2017-03-28 | 2017-06-13 | 贵州天益仪表科技有限公司 | A kind of method of combustion gas meter anti-theft and gas meter, flow meter used |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
| EP3460418B1 (en) * | 2016-05-17 | 2021-05-19 | Chengdu Qinchuan IoT Technology Co., Ltd. | Wide-range diaphragm gas meter |
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2015
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| EP3460418B1 (en) * | 2016-05-17 | 2021-05-19 | Chengdu Qinchuan IoT Technology Co., Ltd. | Wide-range diaphragm gas meter |
| CN106168501A (en) * | 2016-07-15 | 2016-11-30 | 重庆市山城燃气设备有限公司 | The automatic diagnosis and alarming system of intelligent gas meter micro-leakage |
| CN106840299A (en) * | 2017-03-28 | 2017-06-13 | 贵州天益仪表科技有限公司 | A kind of method of combustion gas meter anti-theft and gas meter, flow meter used |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
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Address after: Zhengtai Instrument Measurement Industrial Park, No.1 Liangce Road, Beibaixiang Town, Leqing City, Wenzhou City, Zhejiang Province, 325603 Patentee after: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. Country or region after: China Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. Country or region before: China |
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