CN110160592B - Electromagnetic interference resistant remote water meter - Google Patents
Electromagnetic interference resistant remote water meter Download PDFInfo
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- CN110160592B CN110160592B CN201910479082.5A CN201910479082A CN110160592B CN 110160592 B CN110160592 B CN 110160592B CN 201910479082 A CN201910479082 A CN 201910479082A CN 110160592 B CN110160592 B CN 110160592B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000004891 communication Methods 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
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- 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
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
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- 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
- G01F15/18—Supports or connecting means for meters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a remote water meter capable of preventing electromagnetic interference, belonging to the water meter field, comprising a water meter shell, wherein the right end of the water meter shell is provided with a meter shell, the upper end and the lower end of the meter shell are symmetrically provided with connecting threaded pipes, the outer side of the meter shell is sleeved with a magnetic shield, the right side wall of the magnetic shield is provided with a communication connector, the left end of the magnetic shield is provided with a first flange, the upper end and the lower end of the magnetic shield are symmetrically provided with through grooves, the upper end and the lower end of the magnetic shield are symmetrically provided with grooves, the grooves are internally provided with limit grooves, the upper end and the lower end of the magnetic shield are clamped with connecting blocks, the magnetic shield is arranged outside the meter shell of the water meter and matched with the connecting blocks, so that electronic elements inside the meter shell can be prevented from being subjected to electromagnetic interference, and the communication connection is carried out without adopting a lead wire mode, the electromagnetic interference on the water meter measurement is avoided.
Description
Technical Field
The invention relates to the field of water meters, in particular to an electromagnetic interference prevention remote water meter.
Background
The existing intelligent water meter has two metering modes, one is mechanical, namely, an impeller is placed in a water flow channel, a gear mechanism is connected above the impeller, the gear mechanism displays corresponding numbers on a dial plate, and the numbers are water consumption. Yet another way is to meter by means of a sensor. The metering is realized by sensing the number of turns of a metering sensing pointer through a magnetic metering sensor, and the metering sensing pointer has magnetism or magnetic conductivity.
For the water meter which carries out measurement through the sensor, some lawless persons use a strong magnet to place on a shell of a water meter in order to steal water, and the interference magnetic sensor receives signals of the measurement sensor, so that the measurement of the water meter generates errors or stops measurement. Accordingly, there is a need for an improved water meter that prevents the effects of electromagnetic interference on water metering.
Although the invention is designed to realize the magnetic shielding function by installing the antimagnetic cover, the antimagnetic cover still has magnetic interference after being disassembled by some illegal personnel in the prior art. In order to avoid violent disassembly, welding is possible in the prior art, but the mode is complex to operate and has high requirements on staff, or the anti-counterfeiting label is adhered, the mode is easy to replace and confuse audio and video by the anti-counterfeiting label which is adhered by illegal personnel, or the water meter is easy to lose effectiveness due to rainwater erosion because the water meter is installed outdoors.
Disclosure of Invention
The invention aims to provide an electromagnetic interference prevention remote water meter, which can prevent electronic elements in a meter shell from being subjected to electromagnetic interference by installing an anti-magnetic cover outside the meter shell of the water meter and matching with a connecting block, and has good magnetic isolation effect by arranging a communication interface without adopting a lead wire mode for communication connection, thereby preventing the metering of the water meter from being subjected to electromagnetic interference.
Meanwhile, aiming at the technical requirement that the anti-counterfeiting technology needs to be updated in the prior art, one embodiment of the invention also requires disclosing a new anti-counterfeiting technology.
In order to achieve the above object, an embodiment of the present invention provides an electromagnetic interference prevention remote water meter, which includes a water meter housing, a meter housing is disposed at the right end of the water meter housing, connecting threaded pipes are symmetrically disposed at the upper and lower ends of the meter housing, a magnetic shield is sleeved outside the meter housing, a communication connector is disposed on the right side wall of the magnetic shield, a first flange is disposed at the left end of the magnetic shield, through grooves are symmetrically disposed at the upper and lower ends of the magnetic shield, limiting grooves are disposed in the grooves, connecting blocks are fastened to the upper and lower ends of the magnetic shield, the magnetic shield is mounted outside the meter housing of the water meter, and through cooperation with the connecting blocks, electronic components inside the meter housing can be prevented from being subjected to electromagnetic interference, and through the arrangement of a communication interface, the communication connection is carried out without adopting a lead wire mode, so that the magnetic isolation effect is good, and the water meter metering is prevented from being subjected to electromagnetic interference.
The antimagnetic cover is fixed on the water meter shell through the lock catch assembly and is used for covering the meter shell inside; the latch assembly includes:
the main buckle is arranged below the antimagnetic cover, is made of elastic materials, and has hook feet facing outwards; the right side of the main buckle is provided with an installation platform, the outer side of the lower part of the installation platform is provided with an elastic pushing strip, the elastic pushing strip is arranged on the right side or the inner side of the main buckle, and a connecting rod is arranged between the elastic pushing strip and the main buckle; the right inner wall of the elastic push strip is an inclined plane, a right-angled trapezoidal groove is formed between the inclined plane and the vertically arranged elastic push strip, a rectangular push block is arranged in the right-angled trapezoidal groove, and a sealing cap is arranged at the upper end of the rectangular push block in the mounting table;
the lower end of the main buckle is provided with a slotted hole, an elastic clamp is arranged in the slotted hole and comprises a base, the lower part of the base is fixed in the slotted hole, the upper part of the base is a hollow cylindrical sleeve, a spring is arranged in the sleeve, a sliding sleeve is arranged outside the sleeve, and a limiting column is arranged at the upper end of the sleeve and used for limiting the sliding sleeve to slide out of the sleeve;
a water meter locking groove corresponding to the main buckle position is formed in the water meter shell and comprises a locking hole matched with the sliding sleeve to realize locking, a rubber push block is arranged above the locking hole, a pin inserting hole is formed above the rubber push block and penetrates through the water meter shell;
the main buckle is inserted into the water meter locking groove, the rectangular push block is inserted into the right trapezoid groove and then contacts with the right side of the elastic push strip after entering along the inclined plane, the elastic push strip is pushed to contact with the main buckle in the downward moving process of the rectangular push block, the main buckle is further pushed to enter the lower end of the lock hole, and after reaching the lower end of the lock hole, the sliding sleeve of the elastic clamp extends out of the groove hole and enters the lock hole to realize locking;
the contact pin hole is provided with a contact pin, and the contact pin is used for entering the lock hole from the upper part of the contact pin hole to push the rubber push block to withdraw the sliding sleeve from the lock hole.
Furthermore, the antimagnetic cover and the connecting block are made of iron materials, antimagnetic coatings are coated on the outer surfaces of the antimagnetic cover and the connecting block, the iron materials can block electromagnetism, the antimagnetic coatings can further perform antimagnetic, and it is guaranteed that electronic elements in the meter shell are prevented from being interfered by the electromagnetism.
Further, the left end that communication connects is provided with sensor lead joint, and sensor lead joint is used for connecting the sensor lead wire, communication connects's right-hand member is provided with singlechip and connects the interface, and singlechip connects the interface and can be connected with the singlechip through wiring interface and connecting wire, through communication joint's design, need not to adopt traditional pin connection, also avoids trompil on the antimagnetic cover to lead to the magnetic leakage.
Further, the spacing groove is the circular slot, the spacing groove is a style of calligraphy equipartition and arranges, the spacing inslot block has the stopper, through the cooperation of spacing groove and stopper, can be so that antimagnetic cover and connecting block realize the block and be connected for antimagnetic cover realizes sealing.
Furthermore, connecting block upper end left side is provided with the second flange, the second flange constitutes complete flange with first flange, the left end of first flange and the left end of second flange all contact with the right-hand member of water meter case body, through the cooperation of first flange and second flange, can constitute complete flange, with the surface laminating of water meter case body.
Further, connecting block and recess block, the right side of connecting block is provided with the semicircle trough, the semicircle trough contacts with connecting thread pipe, through the cooperation of the recess of connecting block, can make the recess carry on spacingly to the connecting block, conveniently installs the connecting block.
Further, the lower extreme of connecting block is provided with the boss, boss and logical groove block, the lower terminal surface of connecting block is provided with the stopper, and the boss seals a part that leads to the groove for semicircular groove on the connecting block and logical groove right-hand member do not seal the part and constitute complete circular port, provide installation space for connecting the screwed pipe.
Furthermore, the outside of connecting threaded pipe registrates the gasket, the surface contact of gasket and antimagnetic cover avoids fastening nut and antimagnetic cover direct contact through the gasket, leads to the antimagnetic coating impaired.
Furthermore, the outer side of the connecting threaded pipe is connected with a fastening nut through threads, the fastening nut is tightly attached to the gasket, and the fastening nut can compress the gasket, so that the antimagnetic cover and the connecting block are compressed, and fastening connection is realized.
In summary, the invention has the following advantages:
1. this scheme is through the externally mounted antimagnetic cover at the counter casing of water gauge to through the cooperation with the connecting block, can prevent that the inside electronic component of counter casing from receiving electromagnetic interference, through setting up communication interface, need not to adopt the lead wire mode to carry out communication connection moreover, make to separate magnetism effectual, avoid the water gauge measurement to receive electromagnetic interference.
2. The anti-magnetic cover and the connecting block are made of iron materials, anti-magnetic coatings are coated on the outer surfaces of the anti-magnetic cover and the connecting block, the iron materials can block electromagnetism, the anti-magnetic coatings can further prevent the electromagnetism, and the electronic elements in the meter shell are prevented from being interfered by the electromagnetism.
3. The left end that communication connects is provided with sensor lead joint, and sensor lead joint is used for connecting the sensor lead wire, and communication joint's right-hand member is provided with the singlechip and connects the interface, and the singlechip is connected the interface and can be connected with the singlechip through wiring interface and connecting wire, through communication joint's design, need not to adopt traditional pin connection, also avoids trompil on preventing the magnetic shield and leads to the magnetic leakage.
4. The spacing groove is the circular slot, and the spacing groove is a style of calligraphy equipartition and arranges, and the spacing inslot block has the stopper, through the cooperation of spacing groove and stopper, can be so that the block is realized with the connecting block to be connected to antimagnetic cover for antimagnetic cover realizes sealing.
5. Connecting block upper end left side is provided with the second flange, and the second flange constitutes complete flange with first flange, and the left end of first flange and the left end of second flange all contact with the right-hand member of water meter shell body, through the cooperation of first flange and second flange, can constitute complete flange, with the surface laminating of water meter shell body.
6. Connecting block and recess block, the right side of connecting block is provided with the semicircle trough, and the semicircle trough contacts with connecting thread pipe, through the cooperation of the recess of connecting block, can be so that the recess carries on spacingly to the connecting block, and the convenience is installed the connecting block.
7. The lower extreme of connecting block is provided with the boss, boss and logical groove block, and the lower terminal surface of connecting block is provided with the stopper, and the boss will lead to a partly of groove and seal for semicircular groove on the connecting block and logical groove right-hand member do not seal the part and constitute complete circular port, provide installation space for connecting the screwed pipe.
8. The outside cover of connecting threaded pipe has the gasket, and the gasket is with antimagnetic cover's surface contact, avoids fastening nut and antimagnetic cover direct contact through the gasket, leads to antimagnetic coating impaired.
9. The outside of connecting threaded pipe has fastening nut through threaded connection, and fastening nut hugs closely with the gasket, and fastening nut can compress tightly the gasket to compress tightly antimagnetic cover and connecting block, realize fastening connection.
10. The mounting mode of the intelligent water meter in the prior art is optimized, particularly the mounting mode of the antimagnetic cover is optimized, and the mounting mode of the intelligent water meter can play a good anti-counterfeiting role.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present invention;
FIG. 2 is a side view of one embodiment of the present invention;
FIG. 3 is a perspective view of a shield in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view at A in one embodiment of the present invention;
FIG. 5 is a left side view of the antimagnetic shield in one embodiment of the present invention;
FIG. 6 is a top view of a magnetic shield in an embodiment of the present invention;
FIG. 7 is a top view of a connection block in one embodiment of the invention;
FIG. 8 is a bottom view of a connection block in one embodiment of the invention;
FIG. 9 is a schematic view of a latch assembly of the present invention;
FIG. 10 is an assembled view of the components within the keyhole of the present invention;
FIG. 11 is a view of the present invention showing the main buckle engaged with the rectangular push block;
fig. 12 is a schematic view of a spring clip of the present invention.
Wherein, 1, a water meter shell; 2. a gauge housing; 3. connecting a threaded pipe; 5. a magnetic shield; 6. a communication connector; 7. a first flange; 8. a through groove; 9. a groove; 10. a limiting groove; 11. connecting blocks; 12. a second flange; 13. a semi-circular arc groove; 14. a boss; 15. a limiting block; 16. a gasket; 17. fastening a nut; 20. a main buckle; 21. an installation table; 22. elastic push strips; 23. a connecting rod; 24. a bevel; 25. a rectangular push block; 26. a sealing cap; 27. a slot; 28. a base; 29. a spring; 30. a sliding sleeve; 31. a limiting column; 32. a lock hole; 33. a rubber push block; 34. a pin inserting hole; 35. and (6) inserting pins.
Detailed Description
Example 1:
referring to fig. 1-8, an electromagnetic interference resistant remote water meter includes a water meter housing 1, referring to fig. 1-4, a meter housing 2 is disposed at a right end of the water meter housing 1, a metering sensor is mounted inside the meter housing 2 for metering water, and belongs to the prior art, a connecting threaded pipe 3 is symmetrically disposed at an upper end and a lower end of the meter housing 2 for connecting with a water pipe, a magnetic shield 5 is sleeved outside the meter housing 2, the magnetic shield 5 has a magnetic shielding function, a communication connector 6 is disposed on a right side wall of the magnetic shield 5, a first flange 7 is disposed at a left end of the magnetic shield 5, through grooves 8 are symmetrically disposed at the upper end and the lower end of the magnetic shield 5, grooves 9 are symmetrically disposed at the upper end and the lower end of the magnetic shield 5, limit grooves 10 are disposed in the grooves 9, and connecting blocks 11 are respectively clamped at the upper end and the lower end of the magnetic shield 5.
Referring to fig. 2, the anti-magnetic cover 5 and the connecting block 11 are made of an iron material, and the outer surfaces of the anti-magnetic cover 5 and the connecting block 11 are coated with an anti-magnetic coating, so that the iron material can block electromagnetism, and the anti-magnetic coating can further prevent magnetism, thereby ensuring that electronic components in the meter housing 2 are prevented from electromagnetic interference.
Please refer to fig. 4, the left end of the communication joint 6 is provided with a sensor lead joint for connecting a sensor lead, the right end of the communication joint 6 is provided with a single chip microcomputer connection interface, the single chip microcomputer connection interface can be connected with the single chip microcomputer through a wiring interface and a connecting wire, through the design of the communication joint 6, the traditional lead connection is not needed, and the magnetic leakage caused by the opening on the antimagnetic cover 5 is also avoided.
Referring to fig. 2-3, the limiting groove 10 is a circular groove, the limiting grooves 10 are uniformly arranged in a straight line shape, the limiting blocks 15 are engaged in the limiting groove 10, and the antimagnetic cover 5 and the connecting block 11 can be engaged and connected by the cooperation of the limiting groove 10 and the limiting blocks 15, so that the antimagnetic cover 5 is sealed.
Referring to fig. 5 and 7, a second flange 12 is arranged on the left side of the upper end of the connecting block 11, the second flange 12 and the first flange 7 form a complete flange, the left end of the first flange 7 and the left end of the second flange 12 are both in contact with the right end of the water meter case 1, and the complete flange can be formed by matching the first flange 7 and the second flange 12 and is attached to the surface of the water meter case 1.
Referring to fig. 2-3, the connecting block 11 is engaged with the groove 9, the right side of the connecting block 11 is provided with a semi-circular arc groove 13, the semi-circular arc groove 13 is in contact with the connecting threaded pipe 3, and the groove 9 of the connecting block 11 is matched to limit the connecting block 11, so that the connecting block 11 is conveniently mounted.
Referring to fig. 3 and 8, a boss 14 is disposed at a lower end of the connecting block 11, the boss 14 is engaged with the through groove 8, a limiting block 15 is disposed on a lower end surface of the connecting block 11, and the boss 14 seals a portion of the through groove 8, so that a semicircular groove 13 on the connecting block 11 and an unsealed portion at a right end of the through groove 8 form a complete circular hole, and an installation space is provided for connecting the threaded pipe 3.
Referring to fig. 2, a gasket 16 is sleeved on the outer side of the connecting threaded pipe 3, the gasket 16 is in contact with the surface of the antimagnetic shield 5, the gasket 16 prevents the fastening nut 17 from being in direct contact with the antimagnetic shield 5, so that the antimagnetic coating is damaged, the fastening nut 17 is connected to the outer side of the connecting threaded pipe 3 through threads, the fastening nut 17 is tightly attached to the gasket 16, and the fastening nut 17 can compress the gasket 16, so that the antimagnetic shield 5 and the connecting block 11 are compressed, and fastening connection is realized.
When antimagnetic treatment is required to be carried out on the meter shell 2, firstly, a metering sensor lead in the meter shell 2 is connected with a metering sensor lead joint at the left end of a communication joint 6 in an antimagnetic cover 5, then the antimagnetic cover 5 is sleeved with the meter shell 2, so that the left end of a first flange 7 is contacted with the right end of the water meter shell 1, a connecting threaded pipe 3 is positioned in a through groove 8, then a connecting block 11 is sleeved with a groove 9 of the antimagnetic cover 5, a boss 14 arranged on the connecting block 11 is sleeved with the through groove 8, a limiting block 15 is clamped into the limiting groove 10, the connecting block 11 is connected and matched with the antimagnetic cover 5, then a gasket 16 is sleeved on the outer side of the connecting threaded pipe 3 and is connected and fastened with the connecting threaded pipe 3 through a fastening nut 17, the gasket 16 is compressed, so that the connecting block 11 and the antimagnetic cover 5 are compressed, and an antimagnetic structure is formed by the antimagnetic cover 5 and the connecting block 11, avoiding electromagnetic interference with the electronic components inside the meter housing 2.
The embodiment of the invention discloses a water meter which is magnetically shielded by designing the antimagnetic cover, and the invention also optimizes the installation mode of the antimagnetic cover of the water meter.
The antimagnetic cover is fixed on the water meter shell through a lock catch assembly and is used for covering the meter shell inside; the latch assembly includes:
a main buckle 20 arranged below the antimagnetic cover, wherein the main buckle is made of elastic material, and the hook foot of the main buckle faces outwards; the right side of the main buckle is provided with an installation platform 21, the outer side of the lower part of the installation platform is provided with an elastic pushing strip 22, the elastic pushing strip is arranged on the right side or the inner side of the main buckle, and a connecting rod 23 is arranged between the elastic pushing strip and the main buckle; the right side inner wall that elasticity pushed away the strip is inclined plane 24, and the inclined plane pushes away and forms the right trapezoid groove with the elasticity of vertical setting between the strip, installs rectangle ejector pad 25 in the right trapezoid groove, and the upper end of rectangle ejector pad is provided with sealing cap 26 in the mount table.
The lower end of the main buckle is provided with a groove hole 27, an elastic clip is arranged in the groove hole, the elastic clip comprises a base 28, the lower part of the base is fixed in the groove hole, the upper part of the base is a hollow cylindrical sleeve, a spring 29 is arranged in the sleeve, a sliding sleeve 30 is arranged outside the sleeve, and a limiting column is arranged at the upper end of the sleeve to limit the sliding sleeve to slide out of the sleeve; in order to facilitate the installation of the limiting column 21, a waist circular hole may be formed on the side wall of the sliding sleeve.
A water meter locking groove corresponding to the main buckle position is arranged on the water meter shell and comprises a locking hole 32 which is matched with the sliding sleeve to realize locking, a rubber push block 33 is arranged above the locking hole, a pin inserting hole 34 is arranged above the rubber push block, and the pin inserting hole penetrates through the water meter shell;
the main buckle is inserted into the water meter locking groove, the rectangular push block is inserted into the right trapezoid groove and then contacts with the right side of the elastic push strip after entering along the inclined plane, the elastic push strip is pushed to contact with the main buckle in the downward moving process of the rectangular push block, the main buckle is further pushed to enter the lower end of the locking hole, and after reaching the lower end of the locking hole, the sliding sleeve of the elastic clamp extends out of the groove hole and enters the locking hole to realize locking;
the pin hole is provided with a pin 35, and the pin is used for entering the lock hole from the upper part of the pin hole to push the rubber push block to withdraw the sliding sleeve from the lock hole. In order to facilitate the insertion of the pin, a corresponding small hole can be arranged on the antimagnetic cover.
When the anti-magnetic cover is used, the anti-magnetic cover is arranged on the water meter shell, and the lock catch assembly can be adjusted after the limiting block is arranged. The rectangular push block is pushed downwards along the inclined plane, the push block can directly act on the lower end of the elastic push strip when going downwards, the lower end of the elastic push strip can drive the main buckle to move leftwards through the connecting rod, the sliding sleeve is compressed in the slotted hole under pressure when the main buckle is contacted with the inner wall of the water meter locking groove, and the sliding sleeve extends upwards into the slotted hole when the external force of the sliding sleeve is removed after the lower end of the main buckle moves to be right below the locking hole; at the moment, the locking between the main buckle and the water meter locking groove is realized, the main buckle cannot move, the elastic push strip can also keep stable, the rectangular push block can be withdrawn, and then the sealing cap is arranged on the mounting table. Even if the sealing cap is disassembled, the rectangular push block is withdrawn, and the elastic push strip cannot return due to the fact that the main buckle is locked.
When the antimagnetic cover is to be detached for various reasons, such as maintenance, the rubber push block needs to be pushed downwards by inserting the pin from the pin hole in advance until the sliding sleeve is completely withdrawn. Because the rubber push block has stronger adhesive force with the inner wall of the lock hole, the rubber push block cannot move upwards due to the acting force of the spring of the elastic clip, and the rubber push block keeps still after moving downwards to the lowest position. At the moment, the elastic push bar drives the main buckle to move towards the right side to push out the position of the lock hole under the action of self elasticity, and then unlocking can be achieved. At the moment, the rubber push block is moved to the bottom of the lock hole, and the force of the spring is far lower than the contact force between the rubber push block and the inner wall, so that locking cannot be achieved even if the main buckle is moved to the position of the lock hole again.
The locking method can lock the main buckle and the lock hole, and the locking can not be carried out again after the rubber push block is unlocked, so that the illegal disassembly of the antimagnetic cover can be avoided. Even if the antimagnetic shield is illegally detached, the antimagnetic shield can not be normally installed any more, so that the antimagnetic shield can be easily known to be illegally detached, a warning effect can be achieved, the phenomenon that the antimagnetic shield is installed again after being illegally operated after being detached by illegal personnel is avoided, and a metering unit cannot well know the situation. Therefore, the anti-counterfeiting function of the invention is mainly embodied in preventing illegal disassembly and assembly or being easily identified after illegal disassembly and assembly.
While the present invention has been described in detail with reference to the illustrated embodiments, it should not be construed as limited to the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (9)
1. The utility model provides an electromagnetic interference resistance's teletransmission water gauge, includes water meter case (1), its characterized in that: a meter shell (2) is arranged at the right end of the water meter shell (1), connecting threaded pipes (3) are symmetrically arranged at the upper end and the lower end of the meter shell (2), a antimagnetic cover (5) is sleeved on the outer side of the meter shell (2), a communication joint (6) is arranged on the right side wall of the antimagnetic cover (5), a first flange (7) is arranged at the left end of the antimagnetic cover (5), through grooves (8) are symmetrically arranged at the upper end and the lower end of the antimagnetic cover (5), grooves (9) are symmetrically arranged at the upper end and the lower end of the antimagnetic cover (5), limiting grooves (10) are arranged in the grooves (9), and connecting blocks (11) are clamped at the upper end and the lower end of the antimagnetic cover (5);
a metering sensor is arranged in the meter shell, and connecting threaded pipes are symmetrically arranged at the upper end and the lower end of the meter shell and are used for being connected with a water pipe pipeline;
the antimagnetic cover is fixed on the water meter shell through a lock catch assembly and is used for covering the meter shell inside; the latch assembly includes:
the main buckle is arranged below the antimagnetic cover, is made of elastic materials, and has hook feet facing outwards; the right side of the main buckle is provided with an installation platform, the outer side of the lower part of the installation platform is provided with an elastic pushing strip, the elastic pushing strip is arranged on the right side or the inner side of the main buckle, and a connecting rod is arranged between the elastic pushing strip and the main buckle; the right inner wall of the elastic push strip is an inclined plane, a right-angled trapezoidal groove is formed between the inclined plane and the vertically arranged elastic push strip, a rectangular push block is arranged in the right-angled trapezoidal groove, and a sealing cap is arranged at the upper end of the rectangular push block in the mounting table;
the lower end of the main buckle is provided with a slotted hole, an elastic clamp is arranged in the slotted hole and comprises a base, the lower part of the base is fixed in the slotted hole, the upper part of the base is a hollow cylindrical sleeve, a spring is arranged in the sleeve, a sliding sleeve is arranged outside the sleeve, and a limiting column is arranged at the upper end of the sleeve and used for limiting the sliding sleeve to slide out of the sleeve;
a water meter locking groove corresponding to the main buckle position is formed in the water meter shell and comprises a locking hole matched with the sliding sleeve to realize locking, a rubber push block is arranged above the locking hole, a pin inserting hole is formed above the rubber push block and penetrates through the water meter shell;
the main buckle is inserted into the water meter locking groove, the rectangular push block is inserted into the right trapezoid groove and then contacts with the right side of the elastic push strip after entering along the inclined plane, the elastic push strip is pushed to contact with the main buckle in the downward moving process of the rectangular push block, the main buckle is further pushed to enter the lower end of the lock hole, and after reaching the lower end of the lock hole, the sliding sleeve of the elastic clamp extends out of the groove hole and enters the lock hole to realize locking;
the contact pin hole is provided with a contact pin, and the contact pin is used for entering the lock hole from the upper part of the contact pin hole to push the rubber push block to withdraw the sliding sleeve from the lock hole.
2. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: the anti-magnetic cover (5) and the connecting block (11) are both made of iron materials, and anti-magnetic coatings are coated on the outer surfaces of the anti-magnetic cover (5) and the connecting block (11).
3. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: the left end of the communication joint (6) is provided with a sensor lead joint, and the right end of the communication joint (6) is provided with a singlechip connection interface.
4. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: the limiting groove (10) is a circular groove, the limiting groove (10) is uniformly distributed in a straight line shape, and the limiting groove (10) is internally clamped with a limiting block (15).
5. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: the water meter is characterized in that a second flange (12) is arranged on the left side of the upper end of the connecting block (11), the second flange (12) and the first flange (7) form a complete flange, and the left end of the first flange (7) and the left end of the second flange (12) are both in contact with the right end of the water meter shell (1).
6. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: connecting block (11) and recess (9) block, the right side of connecting block (11) is provided with semicircle arc groove (13), semicircle arc groove (13) and connecting thread pipe (3) contact.
7. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: the lower extreme of connecting block (11) is provided with boss (14), boss (14) and logical groove (8) block, the lower extreme surface of connecting block (11) is provided with stopper (15).
8. The electromagnetic interference resistant remote water meter recited in claim 1, wherein: and a gasket (16) is sleeved on the outer side of the connecting threaded pipe (3), and the gasket (16) is in contact with the surface of the antimagnetic shield (5).
9. The electromagnetic interference resistant remotely-transmitted water meter of claim 8, wherein: the outer side of the connecting threaded pipe (3) is connected with a fastening nut (17) through threads, and the fastening nut (17) is tightly attached to the gasket (16).
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| CN110160592B true CN110160592B (en) | 2020-07-14 |
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| CN110160592A (en) | 2019-08-23 |
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Denomination of invention: A Remote Transmission Water Meter with Anti Electromagnetic Interference Effective date of registration: 20231109 Granted publication date: 20200714 Pledgee: Bank of China Limited Xindu sub branch Pledgor: Chengdu Mulsi Instrument Technology Co.,Ltd. Registration number: Y2023510000246 |