CN107560693B - A kind of water meter detection device - Google Patents
A kind of water meter detection device Download PDFInfo
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- CN107560693B CN107560693B CN201710609919.4A CN201710609919A CN107560693B CN 107560693 B CN107560693 B CN 107560693B CN 201710609919 A CN201710609919 A CN 201710609919A CN 107560693 B CN107560693 B CN 107560693B
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- sliding block
- interconnecting piece
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Abstract
The invention discloses a kind of water meter detection devices, including water tank, support frame, length direction along support frame is connected with slide plate, the water-logged base and effluent seat for connecting with water tank are connected on support frame, the fixture block between water-logged base and effluent seat is slidably connected on slide plate, the fixture block includes interconnecting piece and the sealing for connecting with water meter, clamping plate is connected on interconnecting piece, drive rod is provided on interconnecting piece, drive rod is connect by transmission component with clamping plate, transmission component is connected on interconnecting piece, drive rod is moved along the length direction of itself drives clamping plate to contradict with slide plate or separate with slide plate by the transmission component, clamping plate and interconnecting piece are respectively placed in slide plate two sides, having achieved the purpose that being capable of fixture block easy to remove.
Description
Technical field
The present invention relates to a kind of water meters to detect instrument, more specifically, it relates to a kind of water meter detection device.
Background technique
Water meter be in field of flow measurement using have a large capacity and a wide range, one of the measuring instrument that description is more, in water supply and sewage
Flow rate calculation, water rate trade settlement, energy measurement and the control of industrial or agricultural water utilizing process etc. are responsible for particularly important role.
Before water meter factory, it is necessary to whether accurate examine and determine its reading.
Currently, the Chinese patent of Publication No. CN105865589A discloses a kind of intelligent full flow point full-automatic water meter
Calibration equipment, it includes water piping system and water meter clamping device；The water tank of water piping system and water pump, filter and main water supply
Pipe is sequentially communicated, and main-supply is connected to total outlet pipe；Branch water inlet pipe, piston hydraulic pressure meter and branch are parallel on main-supply
Outlet pipe；Total outlet pipe outlet connects with high-precision water outlet tube inlet, low precision water outlet tube inlet and pressure release water outlet tube inlet respectively
Logical, the outlet of high-precision outlet pipe is connected to through inverted U pipe with water tank；Low precision outlet pipe is connected to through L-type pipe with splitter inlet, point
Stream device first outlet is connected to graduated cylinder, and graduated cylinder is shelved on scale.
In order to save water resource, protection environment, make water into cross water meter after, be able to enter in reserve tank, then by pump into
Enter into water piping system, realizes water recycling.
This intelligent full flow point full-automatic water meter calibration equipment structure is simple, but when in use, water meter is placed on
On fixture block, fixture block is slidably connected on the guide bar, supports water meter by fixture block, due to that can generate one between guide rod and fixture block
Quantitative scale, so that mobile frictional force is larger on the guide bar for fixture block, the mobile fixture block of worker is more inconvenient.
Summary of the invention
In view of the deficienciess of the prior art, the invention reside in a kind of water meter detection device is provided, by pressing drive rod,
So that clamping plate is contradicted or is separated with slide plate, achievees the purpose that fixture block easy to remove.
To achieve the above object, the present invention provides the following technical scheme that a kind of water meter detection device, including water tank,
Support frame is connected with slide plate along the length direction of support frame, be connected on the support frame for connect with water tank into
Water seat and effluent seat slidably connect the fixture block between water-logged base and effluent seat, the fixture block packet on the slide plate
Interconnecting piece and the sealing for connecting with water meter are included, clamping plate is connected on the interconnecting piece, is arranged on the interconnecting piece
There is drive rod, the drive rod is connect by transmission component with clamping plate, and transmission component is connected on interconnecting piece, the driving
Bar is moved along the length direction of itself drives clamping plate to contradict or separate with slide plate, the clamping plate with slide plate by the transmission component
Slide plate two sides are respectively placed in interconnecting piece.
By using above-mentioned technical proposal, when needing mobile fixture block, by pressing drive rod, driven by transmission component
Clamping plate moves, and separates clamping plate with slide plate, at this point, fixture block is supported by interconnecting piece, it can be convenient for mobile, the In by fixture block
After sealing is connect with water meter, drive rod is pressed again, and drive rod is made to drive clamping plate toward close to slide plate by transmission component
Direction is mobile, and the interconnecting piece and clamping plate for being placed on slide plate two sides are contradicted with slide plate simultaneously, can position fixture block；By fixture block in cunning
When positioning on plate, it is not easy to generate biggish difference in height on slide plate, thus enable water flow by more gentle when water meter, so that
It reads more accurate.
The present invention is further arranged to: the transmission component includes positioning seat, the first sliding block, the second sliding block, bootstrap block
And elastic component, the positioning seat are fixed on interconnecting piece, first sliding block, which connect and is slidably connected to drive rod, to be determined
In the seat of position, second sliding block is slidably connected in positioning seat and connect with clamping plate, and first sliding block is back to drive rod
One end offer the first inclined-plane, one end of second sliding block towards the first sliding block is offered for being bonded with the first inclined-plane
The second inclined-plane, the positioning seat offers third inclined-plane and sliding slot along the length direction of itself, and the bootstrap block is embedded
In on third inclined-plane or being placed in sliding slot.
By using above-mentioned technical proposal, while drive rod is moved along the length direction of itself, tiltedly by first
The guiding function in face and the second inclined-plane, the second sliding block is mobile toward the direction of remotely located seat, and rotates a certain angle, and will guide
Block is corresponding with third inclined-plane, unclamps drive rod, is acted on by the elastic force of elastic component, bootstrap block is embedded on third inclined-plane, after
And clamping plate is positioned, at this point, clamping plate is separated with slide plate, fixture block easy to remove presses drive rod again, similarly, the rotation of the second sliding block
Turn certain angle, after unclamping drive rod, acted on by the elastic force of elastic component, bootstrap block is placed in sliding slot and sliding toward close first
The direction of block is mobile, and clamping plate and slide plate are contradicted, and the frictional force of generation positions fixture block.
The present invention is further arranged to: the clamping plate is connect by limit assembly with the second sliding block.
By using above-mentioned technical proposal, the setting of limit assembly can make the second sliding block be not easy to drive folder in rotation
Plate rotates, and reduces the mutual abrasion generated between clamping plate and slide plate, prolongs the service life.
The present invention is further arranged to: the limit assembly includes rotating wheel and gag lever post, and the gag lever post is fixed
In on interconnecting piece, the clamping plate is slidably connected along the length direction of gag lever post with gag lever post, and the clamping plate is turned by described
Driving wheel produces relative rotation with second sliding block.
By using above-mentioned technical proposal, the second sliding block in the course of rotation, drives rotating wheel rotation, meanwhile, pass through
Gag lever post is to the position-limiting action of clamping plate, to make to produce relative rotation between the second sliding block and clamping plate, enable clamping plate along
While the length direction of gag lever post is mobile, it is not easy to slide plate and generates relative movement, reduce the abrasion of clamping plate and slide plate.
The present invention is further arranged to: the rotating wheel includes inner ring, outer ring and ball, and the inner ring passes through described
Ball is rotationally connected on outer ring, and the inner ring is fixedly connected with the second sliding block, and the outer ring is connect with Boards wall.
By using above-mentioned technical proposal, the second sliding block generates rotation by the guiding role on the first inclined-plane and the second inclined-plane
When, drive inner ring rotation, by the rolling of ball so that generate relative motion between inner ring and outer ring, thus realize clamping plate with
The relative motion of second sliding block.
The present invention is further arranged to: being fixed with sealing ring on the inner wall of the sealing.
By using above-mentioned technical proposal, the setting of sealing ring can increase the leakproofness between sealing and water meter, when
When water flowed into water meter, water is not easy the leakage of the gap between sealing and water meter, reduces error.
The present invention is further arranged to: multiple apopores, the lower section of the support frame are offered on the support frame
It is placed with water storage box.
It,, will due to some water residual in water meter after water meter detection finishes by using above-mentioned technical proposal
When water meter is removed from fixture block, water is fallen on support frame, is entered in water storage box by apopore, convenient for the collection to water.
The present invention is further arranged to: the water storage box is connected to by unloading water pipe with water tank.
By using above-mentioned technical proposal, the water in water storage box is imported into water tank, can be realized the circulation of water, is saved
About water resource protects environment.
The present invention is further arranged to: the slide plate is connect by support rod with support frame, and the support rod passes through
Locking member is connect with support frame.
By using above-mentioned technical proposal, support rod is able to ascend the level height of slide plate, enables worker convenient for peace
It is more convenient under loading and unloading, improving production efficiency.
The present invention is further arranged to: the water-logged base includes water inlet pipe and support base, and the water inlet pipe passes through liquid
Cylinder pressure is slidably connected on the support base, and the water inlet pipe is connected to far from one end of hydraulic cylinder with water tank.
By using above-mentioned technical proposal, Hydraulic Cylinder water inlet pipe is connected to water meter, meanwhile, pass through the pressure of hydraulic cylinder
Effect, can further decrease error by the connection of the connection of water meter and sealing, water meter and water inlet pipe more closely.
In conclusion the invention has the following advantages:
When needing mobile fixture block, drive rod is pressed, drive rod is made to push the first sliding block and the second sliding block toward far from driving
The direction of bar is mobile, by the guiding function on the first inclined-plane and the second inclined-plane, after separating the second sliding block with positioning seat, generates rotation
Turn, bootstrap block is corresponding with third inclined-plane, it is acted on by the elastic force of elastic component, bootstrap block is embedded on third inclined-plane, realized
The separation of clamping plate and slide plate；When needing to position fixture block, drive rod is pressed again, and similarly, the second sliding block generates rotation, will draw
Guide block is corresponding with sliding slot, is acted on by the elastic force of elastic component, bootstrap block is moved along the length direction of sliding slot, fixture block is passed through
Elastic force effect and the slide plate of elastic component contradict, and the frictional force of generation positions fixture block, easy to operate.
Detailed description of the invention
Fig. 1 is external structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram for embodying water tank；
Fig. 3 is the structural schematic diagram for embodying fixture block；
Fig. 4 is enlarged drawing at the A of Fig. 3.
Appended drawing reference: 1, support frame；11, slide plate；2, water tank；21, water storage part；22, water storage portion；23, graduated cylinder；24, red
Outer sensor；3, water-logged base；31, water inlet pipe；32, support base；4, effluent seat；5, fixture block；51, interconnecting piece；511, mounting hole；
512, guide hole；52, sealing；521, sealing ring；6, drive rod；7, transmission component；71, positioning seat；711, sliding slot；712,
Three inclined-planes；72, the first sliding block；721, the first inclined-plane；73, the second sliding block；731, the second inclined-plane；74, bootstrap block；75, elastic component；
76, placement plate；8, limit assembly；81, gag lever post；82, rotating wheel；821, inner ring；822, outer ring；823, ball；9, clamping plate；
91, fixation hole.
Specific embodiment
Referring to attached drawing, the present invention will be further described.
As depicted in figs. 1 and 2, a kind of water meter detection device, including support frame 1 and water tank 2, support frame 1 is horizontal positioned,
Water tank 2 is placed in by support frame 1.
Water tank 2 includes water storage part 21 and water storage portion 22, and water storage portion 22 is located at the lower section of water storage part 21 to accept from storage
Water derived from water portion 21.Valve (not shown) is installed in water storage part 21.It is injected in cylindric water storage part 21 in advance
A certain amount of water can be injected water into water storage portion 22 by opening valve by the effect of gravity.In water storage part 21
It is fixed with a transparent graduated cylinder 23 on outer wall, an infrared sensor 24 is fixed on graduated cylinder 23.When infrared sensor 24
Detect that the water level in graduated cylinder 23 reaches
Water pump is installed in the middle part of outlet pipe, one end of outlet pipe is placed in the top of water storage part 21, the other end and water outlet
Seat 4 is connected to.
Water-logged base 3 and effluent seat 4 are separately fixed at the left and right ends of support frame 1.Water-logged base 3 includes water inlet pipe 31 and support
Seat 32.Support base 32 is bolted on support frame 1 in bulk.31 one end of water inlet pipe is arranged in support base 32, another
End is connected to by water pump with above-mentioned water storage portion 22.Water inlet pipe 31 is connect by hydraulic cylinder (not shown) with support base 32,
It is moved by Hydraulic Cylinder water inlet pipe 31 along the length direction of support base 32, this is the prior art, is not done in the present embodiment
It repeats.
It is fixed on support frame 1 that there are two parallel slide plate 11, the length direction of slide plate 11 and the length directions of support frame 1
It is arranged in parallel.As shown in figures 1 and 3, being slidably connected on slide plate 11, there are five fixture blocks 5.Each fixture block 5 includes integrated setting
Two interconnecting pieces 51 and a sealing 52.Sealing 52 is cylindrical, vertical placement, and two interconnecting pieces 51 are set in cuboid
It sets and is respectively placed in the two sides of sealing 52, be horizontally arranged.One end by interconnecting piece 51 far from sealing 52 is contradicted with slide plate 11,
Fixture block 5 is supported.
It is fixed with sealing ring 521 at the middle part of sealing 52, sealing ring 521 is made of rubber.
One end of sealing 52 is provided with drive rod 6 in interconnecting piece 51.Drive rod 6 is cylindrical and places vertically.
Transmission component 7 is provided on interconnecting piece 51.
Transmission component 7 includes positioning seat 71, the first sliding block 72, the second sliding block 73, bootstrap block 74 and elastic component 75.Elasticity
Part 75 is spring.The mounting hole 511 being vertically arranged is offered far from one end of sealing 52 in interconnecting piece 51, mounting hole 511
Section is rounded.Cylindrical positioning seat 71 is fixed in mounting hole 511.By cylindrical the first sliding block 72 and the second sliding block
73 are sequentially placed into positioning seat 71.The side of first sliding block 72 is fixedly connected with drive rod 6, the other side offers multiple first
Inclined-plane 721.These first inclined-planes 721 are uniformly distributed along the axle center of the first sliding block 72.The second cylindrical sliding block 73 is towards the
The side of one sliding block 72 offers multiple the second inclined-planes 731 for contradicting with the first inclined-plane 721.On the side wall of second sliding block 73
It is fixed with above-mentioned bootstrap block 74.Bootstrap block 74 is in long strip, and the length of the length direction of bootstrap block 74 and the second sliding block 73
Degree direction is arranged in parallel.
The sliding slot 711 of strip is offered on the side wall of positioning seat 71, one end of positioning seat 71 back to drive rod 6 offers
Third inclined-plane 712.The Z-shape setting in the section on third inclined-plane 712.Bootstrap block 74 and third inclined-plane 712 is set to contradict or be placed in sliding slot
In 711.
As shown in Figure 3 and Figure 4, one end of elastic component 75 is fixed in placement plate 76, and the other end and the second sliding block 73 are separate
One end of first sliding block 72 contradicts, and any moment applies toward the elastic force close to 72 direction of the first sliding block the second sliding block 73.In
Second sliding block 73 is provided with limit assembly 8 close to one end of elastic component 75, and limit assembly 8 includes rotating wheel 82 and gag lever post 81.
Rotating wheel 82 includes inner ring 821, outer ring 822 and ball 823.In the present embodiment, for save the cost, rotating wheel 82 is bearing.
Inner ring 821 is set on the outer wall of the second sliding block 73, and is interference fitted inner ring 821 and the second sliding block 73.Ball 823 is located at
Between inner ring 821 and outer ring 822.During inner ring 821 rotates with the second sliding block 73, inner ring 821 and outer ring 822
It produces relative rotation.
Clamping plate 9 is in cuboid and is horizontally arranged, and is placed in slide plate 11 back to the side of interconnecting piece 51.It is offered on clamping plate 9
Outer ring 822 is embedded in the fixation hole 91 by fixation hole 91, and realization clamping plate 9 is fixedly connected with outer ring 822.Cylindrical
Gag lever post 81 is fixed on interconnecting piece 51.Gag lever post 81 is placed vertically.Guide hole 512 is offered on interconnecting piece 51, will be limited
Position bar 81 is arranged in the guide hole 512.
When pressing drive rod 6, drive rod 6 drives the first sliding block 72 and the second sliding block 73 to move toward the direction close to clamping plate 9
It is dynamic, the second sliding block 73 is stretched out from positioning seat 71, meanwhile, by the guiding role on the first inclined-plane 721 and the second inclined-plane 731,
So that the second sliding block 73 generates rotation in mounting hole 511, so that bootstrap block 74 is corresponding with third inclined-plane 712, drive rod 6 is unclamped
Afterwards, it is acted on by the elastic force of elastic component 75, by bootstrap block 74 on third inclined-plane 712, at this point, clamping plate 9 is separated with slide plate 11,
So as to fixture block 5 easy to remove；When pressing drive rod 6 again, similarly, the second sliding block 73 produces after stretching out from positioning seat 71
The rotation of raw certain angle after unclamping drive rod 6, passes through the elastic force of elastic component 75 at this point, bootstrap block 74 is corresponding with sliding slot 711
Effect pushes the second sliding block 73 toward close to the movement of the direction of the first sliding block 72, and bootstrap block 74 is placed in sliding slot 711 and along sliding slot
711 is mobile toward the directions close to the first sliding blocks 72, and clamping plate 9 is moved with the movement of the second sliding block 73, and with slide plate 11 back to
The side of interconnecting piece 51 contradicts, and the frictional force of generation can be such that fixture block 5 is positioned on slide plate 11.
After having detected water meter, a part of water can be remained in water meter, during water meter is removed from fixture block 5, water
It can fall on support frame 1.Multiple apopores are offered on support frame 1, place water storage box, support frame 1 in the lower section of support frame 1
On water fallen into water storage box by apopore.The one end for unloading water pipe is connected to water storage box, and the other end is connected to water storage portion 22, is led to
Water in water storage box is introduced into water storage portion 22 by the effect for crossing gravity.It realizes recycling for water, saves water resource.
In conclusion in use, between two neighboring water meter be arranged a fixture block 5, pass through Hydraulic Cylinder water inlet pipe 31
It is mobile toward the direction of close water meter, and it is set in the water inlet end of water meter, and further press to water meter, so that water meter and fixture block 5
Between there is high-seal, then press drive rod 6 and position fixture block 5, starting water pump easy to operate, by water from 31 note of water inlet pipe
Enter into water meter, stop after water meter walks a period of time, records initial value；Then the valve in water storage part 21 is closed, starts water
Pump, water is entered in water meter, and exported in effluent seat 4 from water meter from water-logged base 3, then enters water storage from effluent seat 4
In portion 21, the water level in water storage part 21 is shown in graduated cylinder 23 in real time, after reaching certain water level, is stopped water pump, is recorded water
End value is subtracted initial value, is exactly water flow, compared with the water in water storage part 21, you can get it, and the water meter is by the end value of table
No standard.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of water meter detection device, including water tank (2), support frame (1), the length direction along support frame (1) are connected with cunning
Plate (11) is connected with water-logged base (3) and effluent seat (4) for connecting with water tank (2) on the support frame (1), described
Slide plate (11) on slidably connect fixture block (5) between water-logged base (3) and effluent seat (4), the fixture block (5) includes
Interconnecting piece (51) and sealing (52) for being connect with water meter, it is characterized in that: being connected with clamping plate on the interconnecting piece (51)
(9), it is provided with drive rod (6) on the interconnecting piece (51), the drive rod (6) passes through transmission component (7) and clamping plate (9)
Connection, transmission component (7) are connected on interconnecting piece (51), and the drive rod (6) is moved along the length direction of itself passes through institute
Transmission component (7) driving clamping plate (9) is stated to contradict or separate with slide plate (11), the clamping plate (9) and interconnecting piece with slide plate (11)
(51) slide plate (11) two sides are respectively placed in；The transmission component (7) includes positioning seat (71), the first sliding block (72), the second cunning
Block (73), bootstrap block (74) and elastic component (75), the positioning seat (71) are fixed on interconnecting piece (51), and described first is sliding
Block (72) connect with drive rod (6) and is slidably connected in positioning seat (71), and second sliding block (73) is slidably connected to fixed
It is connect in position seat (71) and with clamping plate (9), one end of the first sliding block (72) back to the drive rod (6) offers the first inclined-plane
(721), one end of second sliding block (73) towards the first sliding block (72) is offered for being bonded with the first inclined-plane (721)
Second inclined-plane (731), the positioning seat (71) offer third inclined-plane (712) and sliding slot (711) along the length direction of itself,
The bootstrap block (74) is embedded on third inclined-plane (712) or is placed in sliding slot (711)；The clamping plate (9) passes through limit
Component (8) is connect with the second sliding block (73)；The limit assembly (8) includes rotating wheel (82) and gag lever post (81), described
Gag lever post (81) is fixed on interconnecting piece (51), length direction and gag lever post (81) of the clamping plate (9) along gag lever post (81)
It is slidably connected, the clamping plate (9) is produced relative rotation by the rotating wheel (82) with second sliding block (73)；
The rotating wheel (82) includes inner ring (821), outer ring (822) and ball (823), and the inner ring (821) passes through institute
It states ball (823) to be rotationally connected on outer ring (822), the inner ring (821) is fixedly connected with the second sliding block (73), described
Outer ring (822) is fixedly connected with clamping plate (9).
2. a kind of water meter detection device according to claim 1, it is characterized in that: solid on the inner wall of the sealing (52)
Surely there are sealing ring (521).
3. a kind of water meter detection device according to claim 2, it is characterized in that: being offered on the support frame (1) more
A apopore, the support frame are placed with water storage box below (1).
4. a kind of water meter detection device according to claim 3, it is characterized in that: the water storage box is by unloading water pipe and storage
Water tank (2) connection.
5. a kind of water meter detection device according to claim 3, it is characterized in that: the slide plate (11) by support rod with
Support frame (1) connection, the support rod are connect by locking member with support frame (1).
6. a kind of water meter detection device according to claim 4, it is characterized in that: the water-logged base (3) includes water inlet pipe
(31) and support base (32), the water inlet pipe (31) is slidably connected on the support base (32) by hydraulic cylinder, described
Water inlet pipe (31) is connected to far from one end of hydraulic cylinder with water tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609919.4A CN107560693B (en) | 2017-07-25 | 2017-07-25 | A kind of water meter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609919.4A CN107560693B (en) | 2017-07-25 | 2017-07-25 | A kind of water meter detection device |
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| Publication Number | Publication Date |
|---|---|
| CN107560693A CN107560693A (en) | 2018-01-09 |
| CN107560693B true CN107560693B (en) | 2019-11-12 |
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ID=60974208
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609919.4A Active CN107560693B (en) | 2017-07-25 | 2017-07-25 | A kind of water meter detection device |
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| Country | Link |
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| CN (1) | CN107560693B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029793A (en) * | 2018-07-10 | 2018-12-18 | 浙江永阳节能技术有限公司 | A kind of calorimeter pressure device |
| CN111238608B (en) * | 2020-02-28 | 2022-01-11 | 广西格瑞思仪表科技有限公司 | Ultrasonic water meter calibration table and constant-pressure water tank system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2708473Y (en) * | 2004-03-20 | 2005-07-06 | 王世华 | A push button switch |
| CN203225404U (en) * | 2012-11-30 | 2013-10-02 | 重庆富士特电控有限公司 | Plug-socket adopting surface contact |
| CN105865589A (en) * | 2016-06-28 | 2016-08-17 | 宁波东海仪表水道有限公司 | Intelligent full-flow-point full-automatic water meter calibration apparatus |
-
2017
- 2017-07-25 CN CN201710609919.4A patent/CN107560693B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2708473Y (en) * | 2004-03-20 | 2005-07-06 | 王世华 | A push button switch |
| CN203225404U (en) * | 2012-11-30 | 2013-10-02 | 重庆富士特电控有限公司 | Plug-socket adopting surface contact |
| CN105865589A (en) * | 2016-06-28 | 2016-08-17 | 宁波东海仪表水道有限公司 | Intelligent full-flow-point full-automatic water meter calibration apparatus |
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|---|---|
| CN107560693A (en) | 2018-01-09 |
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