CN219319503U - Anti-magnetic attack percussion water meter - Google Patents
Anti-magnetic attack percussion water meter Download PDFInfo
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- CN219319503U CN219319503U CN202320297329.3U CN202320297329U CN219319503U CN 219319503 U CN219319503 U CN 219319503U CN 202320297329 U CN202320297329 U CN 202320297329U CN 219319503 U CN219319503 U CN 219319503U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model relates to an anti-magnetic attack signal-firing water meter, which comprises a pointer, wherein signal-emitting magnetic steel and protection magnetic steel are fixedly arranged on the pointer, and three magnetic switches which are circumferentially arranged are arranged on the outer side of the pointer; the magnetic pole of the transmitting magnetic steel is opposite to the magnetic pole of the protecting magnetic steel, the magnetic field intensity of the transmitting magnetic steel is larger than the magnetic field intensity of the induction working point of the magnetic switch, the magnetic field intensity of the protecting magnetic steel is smaller than the magnetic field intensity of the induction working point of the magnetic switch, and the difference value between the magnetic field intensity of the transmitting magnetic steel and the magnetic field intensity of the induction working point of the magnetic switch is larger than the difference value between the magnetic field intensity of the induction working point of the magnetic switch and the magnetic field intensity of the protecting magnetic steel. According to the utility model, the signaling magnetic steel and the protection magnetic steel with opposite polarities are arranged on the pointer, so that when the water meter is attacked by external magnetism, the magnetic field strength of the protection magnetic steel can be enhanced while the magnetic field of the signaling magnetic steel is weakened by a reverse magnetic field, and the state that the signaling magnetic steel and the protection magnetic steel do not induce a magnetic switch simultaneously in the external magnetic attack process can be avoided.
Description
Technical Field
The utility model relates to the technical field of flow metering, in particular to a double-magnet steel three-magnet switch signaling water meter, and specifically relates to a novel anti-magnetic attack signaling water meter.
Background
At present, only one magnetic steel is arranged on the pointer shaft of the water meter counter, the magnetic steel respectively approaches and departs from the magnetic switch arranged on the outer side of the magnetic steel shaft along with the rotation of the pointer shaft, the electronic sensing and counting functions of the water meter are realized by sequentially sensing and triggering the two magnetic switches, and when the water meter is subjected to external strong magnetic attack, the two magnetic switches simultaneously sense and trigger the alarm to realize the function of preventing the magnetic attack.
However, this structure has a hole, that is, if the intensity of the strong magnetic field of the external attack is weak, the strong magnetic field is insufficient to directly trigger the magnetic switch, and when the equivalent magnetic induction of the counting magnetic steel is weakened due to the fact that the direction of the magnetic induction field is opposite to that of the counting magnetic steel, two magnetic switches or one of the magnetic switches cannot trigger counting due to insufficient magnetic induction intensity, so that the water meter loses the serious product metering fault that the counting signal does not send out.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the anti-magnetic attack signal water meter, and the problem of the anti-magnetic attack loophole is solved by adopting a double-magnetic steel and double-magnetic switch structure with a special structure.
The utility model is realized by the following technical scheme, and provides an anti-magnetic attack signal-firing water meter, which comprises a pointer shaft and a pointer fixedly arranged on the pointer shaft, wherein signal-emitting magnetic steel and protection magnetic steel are fixedly arranged on the pointer, the signal-emitting magnetic steel and the protection magnetic steel are respectively positioned on two sides of the pointer shaft, and two magnetic switches which are circumferentially arranged are arranged on the outer side of the pointer; the magnetic pole of the transmitting magnetic steel is opposite to the magnetic pole of the protecting magnetic steel, the magnetic field intensity of the transmitting magnetic steel is larger than the magnetic field intensity of the magnetic switch induction working point, the magnetic field intensity of the protecting magnetic steel is smaller than the magnetic field intensity of the magnetic switch induction working point, and the difference value between the magnetic field intensity of the transmitting magnetic steel and the magnetic field intensity of the magnetic switch induction working point is larger than the difference value between the magnetic field intensity of the magnetic switch induction working point and the magnetic field intensity of the protecting magnetic steel.
When the normal counting operation is carried out, when the signaling magnetic steel approaches to the two magnetic switches respectively, the two magnetic switches are respectively triggered and recovered after leaving due to the fact that the magnetic field strength of the signaling magnetic steel is higher than that of the working point of the magnetic switches, and the normal counting function is realized; when external attack magnetic steel occurs, the reverse magnetic field weakens the signaling magnetic steel and enhances the magnetic field strength of the protection magnetic steel, so that the signaling magnetic steel and the protection magnetic steel are prevented from simultaneously not inducing the state of the magnetic switch, and the anti-magnetic attack is realized.
As optimization, the transmitting magnetic steel and the protecting magnetic steel are in the same circle, and the circle center of the circle where the transmitting magnetic steel and the protecting magnetic steel are located is located on the axis of the pointer shaft. The arrangement of the optimization scheme ensures that the distance between the transmitting magnetic steel and the protecting magnetic steel is kept consistent with the distance between the attacking magnetic steel in the rotation process, thereby ensuring that the effects of the attacking magnetic steel on the transmitting magnetic steel and the protecting magnetic steel are more approximate, and improving the antimagnetic attack effect.
As optimization, the transmitting magnetic steel and the protecting magnetic steel are collinear, and the straight line where the transmitting magnetic steel and the protecting magnetic steel are positioned is intersected with the axis of the pointer shaft. The setting of this optimizing scheme makes the transmission magnet steel and protect the magnet steel along circumference equipartition for the transmission magnet steel is unanimous with the action time interval of protection magnet steel.
As the optimization, the pointer is including seting up the needle body of mounting hole, and with needle body integrated into one piece's needle point, the mounting hole with pointer axle adaptation, the upper surface that all sets firmly the needle body of signaling magnet steel and protection magnet steel, and signaling magnet steel and protection magnet steel are located the both sides of needle point and mounting hole central line respectively. The pointer of the optimization scheme has simple structure, and the signaling magnetic steel and the protection magnetic steel are respectively arranged at the two sides of the needle point, so that the pointer is beneficial to keeping the stability and balance of the pointer.
As optimization, the central angles corresponding to the two magnetic switches are 180 degrees. The arrangement of the optimization scheme enables the state change intervals of the two magnetic switches to be consistent.
The beneficial effects of the utility model are as follows: through setting up the magnetic steel that sends out that polarity is opposite and protecting the magnet steel on the pointer for when the water gauge receives outside magnetic attack, when reverse magnetic field weakens sending out the magnetic steel magnetic field, can strengthen the magnetic field strength of protecting the magnet steel, thereby can not appear both simultaneously not inducting the state of magnetic switch at outside magnetic attack's in-process.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a usage state diagram of an embodiment;
FIG. 3 is a usage state diagram of a second embodiment;
the figure shows:
1. the magnetic switch I, 2, the magnetic switch II, 3, the pointer, 4, the sending magnetic steel, 5, the protecting magnetic steel, 6, the attack magnetic steel, 7 and the magnetic switch III;
the arrows in fig. 1 and 3 indicate the pointer rotation direction, and the arrows in fig. 2 indicate the pointer shaft rotation direction.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Example 1
The anti-magnetic attack percussion water meter comprises a pointer shaft and a pointer 3 fixedly arranged on the pointer shaft, wherein the pointer 3 is fixedly provided with a signaling magnetic steel 4 and a protection magnetic steel 5, the signaling magnetic steel 4 and the protection magnetic steel 5 are respectively positioned at two sides of the pointer shaft, two magnetic switches which are uniformly distributed along the circumferential direction are arranged at the outer side of the pointer, and the central angle corresponding to the two magnetic switches is 180 degrees.
The transmitting magnetic steel and the protecting magnetic steel are in the same circle, and the circle center of the circle where the transmitting magnetic steel and the protecting magnetic steel are located is positioned on the axis of the pointer shaft. The transmitting magnetic steel and the protecting magnetic steel are collinear, and the straight line where the transmitting magnetic steel and the protecting magnetic steel are positioned is intersected with the axis of the pointer shaft, namely, the relative space position of the transmitting magnetic steel 4 and the protecting magnetic steel 5 is arranged at the position of 180 degrees of concentric circles of the circumference of the pointer. The magnetic pole of the transmitting magnetic steel is opposite to the magnetic pole of the protecting magnetic steel, the magnetic field intensity of the transmitting magnetic steel is larger than the magnetic field intensity of the induction working point of the magnetic switch, the magnetic field intensity of the protecting magnetic steel is smaller than the magnetic field intensity of the induction working point of the magnetic switch, and the difference value between the magnetic field intensity of the transmitting magnetic steel and the magnetic field intensity of the induction working point of the magnetic switch is larger than the difference value between the magnetic field intensity of the induction working point of the magnetic switch and the magnetic field intensity of the protecting magnetic steel.
The pointer comprises a needle body provided with a mounting hole, and a needle tip integrally formed with the needle body, the mounting hole is matched with the pointer shaft, the signaling magnetic steel and the protection magnetic steel are fixedly arranged on the upper surface of the needle body, and the signaling magnetic steel and the protection magnetic steel are respectively positioned on two sides of a central connecting line of the needle tip and the mounting hole. The needle body is sleeved and fixedly connected on the pointer shaft through the mounting hole, and the needle tip extends out of the needle body along the radial direction of the mounting hole.
Specifically, the two magnetic switches are the magnetic switch I1 and the magnetic switch II 2 respectively, the induction magnetic pole of the transmitting magnetic steel 4 is the magnetic south pole S, and the protection magnetic steel 5 is opposite to the induction magnetic pole of the transmitting magnetic steel, and the induction magnetic pole of the protection magnetic steel 5 is the magnetic north pole N. The magnetic switch I1 and the magnetic switch II 2 have the magnetic field intensity of B at the magnetic induction working point, the magnetic field intensity of the transmitting magnetic steel is A, and the magnetic field intensity of the protecting magnetic steel is C.
The magnetic field strength design is set as follows: a is greater than B; c is less than B; A-B > B-C. The magnetic field intensity A of the signaling magnetic steel is larger than the magnetic field intensity B of the induction working point of the two magnetic switches; the magnetic field intensity of the protection magnetic steel is smaller than that of the induction working point of the two magnetic switches and is B; meanwhile, the difference value between the magnetic field intensity A of the signaling magnetic steel and the magnetic field intensity B of the induction working point of the magnetic switch is larger than the difference value between the magnetic field intensity B of the induction working point of the magnetic switch and the magnetic field intensity C of the protection magnetic steel. The purpose of this design is to ensure that the signaling magnetic steel 4 normally counts, but the protection magnetic steel 5 does not participate in the counting, and when the signaling magnetic steel 4 is weakened by a reverse magnetic field, the state that the two are not simultaneously induced by the magnetic switch can not occur in the process of reinforcing the protection magnetic steel 5.
The signs of the magnetic field intensities are not absolute values, and the magnetic field intensity values represent equivalent magnetic induction intensity values at the magnetic switch points.
During normal counting operation, the pointer 3, the signaling magnetic steel 4 and the protection magnetic steel 5 rotate simultaneously, when the signaling magnetic steel 4 is respectively close to the magnetic switch I1 and the magnetic switch II 2, the magnetic switch I1 and the magnetic switch II 2 are respectively triggered because the magnetic field intensity of the signaling magnetic steel 4 is higher than the magnetic field intensity of the lowest working point of the magnetic switch, and after the signaling magnetic steel is separated from the magnetic switch, the magnetic switch I1 and the magnetic switch II 2 are respectively recovered, so that the normal counting function is realized.
When the external attack magnet steel 6 (or other form of magnetic field) is present near the magnetic switch i 1 or ii 2, four cases are discussed:
in the first condition, the attack magnetic steel 6 is larger than the magnetic field intensity B of the magnetic induction working points of the magnetic switch I1 and the magnetic switch II 2 on the magnetic switch I1 and the magnetic switch II 2, and the magnetic switch I1 and the magnetic switch II 2 are necessarily triggered simultaneously to trigger interference alarm.
And in the second case, when the attack magnetic steel 6 approaches the magnetic switch I1 and the magnetic switch II 2, the polarity of the equivalent induction magnetic field is the same as that of the transmission magnetic steel, the equivalent induction magnetic field of the transmission magnetic steel is enhanced, the polarity of the protection magnetic steel is opposite, and the equivalent induction magnetic field is weakened, so that normal counting use is not influenced.
And in the third condition, when the attack magnetic steel 6 approaches the magnetic switch I1 and the magnetic switch II 2, the polarity of the equivalent induction magnetic field is opposite to that of the signaling magnetic steel 4, the signaling magnetic steel equivalent induction magnetic field is weakened, the magnetic switch can still be triggered normally, meanwhile, the protection magnetic steel equivalent induction magnetic field enhances a certain triggering magnetic switch, and the triggering phenomenon can cause interference alarm.
And in the fourth condition, when the attack magnetic steel 6 approaches the magnetic switch I1 and the magnetic switch II 2, the polarity of the equivalent induction magnetic field is opposite to that of the transmission magnetic steel 4, the equivalent induction magnetic field of the transmission magnetic steel 4 is weakened more and does not trigger the magnetic switch, at the moment, the equivalent induction magnetic field of the protection magnetic steel 5 is necessarily enhanced enough to trigger the magnetic switch I1 and the magnetic switch II 2, and at the moment, the condition that two magnetic switches are triggered simultaneously does not occur, so that interference alarm is not triggered. But in this case it is also possible to count the counts normally. It is also reasonable to judge the interference.
The following is further described: because the signaling magnetic steel 4, the protecting magnetic steel 5 and the pointer 3 rotate simultaneously and are arranged in the water meter and are tightly connected with the magnetic switch I1 and the magnetic switch II 2, no space is basically available in the actual operation process, and the equivalent induction magnetic field of the signaling magnetic steel 4 can be weakened only by attacking the magnetic steel 6, and the effective induction magnetic field intensity of the protecting magnetic steel 5 is not weakened, so that the situation is not discussed.
The embodiment adopts the double magnetic steel and double magnetic switch structure with special structure to solve the problem of magnetic attack vulnerability prevention in the prior art, and has the advantages of simplicity, practicality, low cost, good product continuity and the like.
Example two
The difference between this embodiment and the first embodiment is that the magnetic switch iii 7 is further included, and the magnetic switch iii 7 is co-rounded with the magnetic switch i 1 and the magnetic switch ii 2, and the magnetic switch i 1, the magnetic switch ii 2 and the magnetic switch iii 7 are sequentially arranged in the clockwise direction.
In the embodiment, by arranging three magnetic switches, the triggering of the magnetic switches I1 and II 2 has the sequence of triggering relative to the magnetic switch III 7, so that the function of identifying the counter of forward and reverse rotation is realized.
Of course, the above description is not limited to the above examples, and the technical features of the present utility model that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present utility model and not for limiting the same, and the present utility model has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present utility model and the scope of the appended claims.
Claims (6)
1. The utility model provides an anticracking percussion water gauge, includes pointer axle and installs pointer (3) on the pointer axle, its characterized in that: the pointer (3) is fixedly provided with a signaling magnetic steel (4) and a protection magnetic steel (5), the signaling magnetic steel (4) and the protection magnetic steel (5) are respectively positioned at two sides of a pointer shaft, and two magnetic switches which are circumferentially arranged are arranged at the outer side of the pointer;
the magnetic pole of the transmitting magnetic steel is opposite to the magnetic pole of the protecting magnetic steel, the magnetic field intensity of the transmitting magnetic steel is larger than the magnetic field intensity of the magnetic switch induction working point, the magnetic field intensity of the protecting magnetic steel is smaller than the magnetic field intensity of the magnetic switch induction working point, and the difference value between the magnetic field intensity of the transmitting magnetic steel and the magnetic field intensity of the magnetic switch induction working point is larger than the difference value between the magnetic field intensity of the magnetic switch induction working point and the magnetic field intensity of the protecting magnetic steel.
2. An anti-magnetic attack fire water meter according to claim 1, wherein: the transmitting magnetic steel and the protecting magnetic steel are in the same circle, and the circle center of the circle where the transmitting magnetic steel and the protecting magnetic steel are located is located on the axis of the pointer shaft.
3. An anti-magnetic attack fire water meter according to claim 2, wherein: the transmitting magnetic steel and the protecting magnetic steel are collinear, and the straight line where the transmitting magnetic steel and the protecting magnetic steel are positioned is intersected with the axis of the pointer shaft.
4. An anti-magnetic attack fire water meter according to claim 1, wherein: the pointer comprises a needle body provided with a mounting hole, and a needle tip integrally formed with the needle body, the mounting hole is matched with the pointer shaft, the signaling magnetic steel and the protection magnetic steel are fixedly arranged on the upper surface of the needle body, and the signaling magnetic steel and the protection magnetic steel are respectively positioned on two sides of a central connecting line of the needle tip and the mounting hole.
5. An anti-magnetic attack fire water meter according to claim 1, wherein: the central angles corresponding to the two magnetic switches are 180 degrees.
6. An anti-magnetic attack fire water meter according to claim 1, wherein: the magnetic switch III (7) is also included, and the magnetic switch III (7) and the two magnetic switches are in the same circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320297329.3U CN219319503U (en) | 2023-02-23 | 2023-02-23 | Anti-magnetic attack percussion water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320297329.3U CN219319503U (en) | 2023-02-23 | 2023-02-23 | Anti-magnetic attack percussion water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219319503U true CN219319503U (en) | 2023-07-07 |
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ID=87032633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320297329.3U Active CN219319503U (en) | 2023-02-23 | 2023-02-23 | Anti-magnetic attack percussion water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219319503U (en) |
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2023
- 2023-02-23 CN CN202320297329.3U patent/CN219319503U/en active Active
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