CN212931526U - Magnetic signal mounting structure - Google Patents

Abstract

The utility model discloses a magnetic signal mounting structure, which comprises a character wheel, a signal acquisition mechanism arranged on the character wheel and a balance mechanism arranged on the character wheel; the balance mechanism is used for balancing acting force of the wheel disc on the signal acquisition mechanism in the rotation process of the character wheel. Through setting up the balance mechanism on the character wheel, realized can the homodisperse signal acquisition mechanism to the power of exerting of character wheel, the magnetic force that produces when effectively reducing the magnet and gathering the signal influences the character wheel, equilibrium when having promoted the character wheel rotation.

Description

Magnetic signal mounting structure

Technical Field

The utility model belongs to the metering device field, concretely relates to magnetic signal mounting structure.

Background

With the development and requirements of intellectualization, large data requirements such as remote control, remote meter reading, charging and the like of a metering instrument need to be realized.

In the existing counter, a character wheel is fixedly provided with a magnet and a balance weight, the connecting line of the magnet and the balance weight passes through the axle center of the character wheel, and the included angle between the magnet and the balance weight is one-hundred-eighty degrees;

thus, when the character wheel rotates, the gravity generated by the magnet and the balance weight can be changed relative to the character wheel, although the gravity generated by the magnet and the balance weight can be offset to a certain extent, when the magnet collects signals, the magnet exerts extra force on the character wheel due to the action of magnetic force, and the force is generated periodically, so that the force exerted by the magnet and the balance weight on the character wheel cannot be kept balanced on the character wheel all the time, and further, the character wheel is enabled to generate obvious walking and stopping or blocking phenomena in the rotating process.

Based on this, the applicant considers to design a magnetic signal mounting structure which can enable the stress of the print wheel to be more balanced when the print wheel rotates.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a magnetic signal mounting structure which can lead the stress of a character wheel to be more balanced when the character wheel rotates.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a magnetic signal mounting structure comprises a character wheel, a signal acquisition mechanism and a balance mechanism, wherein the signal acquisition mechanism is arranged on the character wheel; the balance mechanism is used for balancing acting force of the wheel disc on the signal acquisition mechanism in the rotation process of the character wheel.

Compared with the prior art, the utility model relates to a magnetic signal mounting structure has the advantage be:

through setting up the balance mechanism on the character wheel, realized can balancing the gravity influence that signal acquisition mechanism applyed to the character wheel, the influence of the magnetic force that produces when effectively reducing the magnet and gathering the signal to the character wheel has promoted the equilibrium when the character wheel rotates.

The magnetic signal mounting structure has the advantages of simple structure and easiness in implementation, is suitable for mounting and using a mechanical counter in the conventional metering instrument, is low in running and using cost, and can improve the benefit.

Drawings

FIG. 1 is a schematic view of a print wheel mounted in a mechanical counter;

FIG. 2 is a schematic view of a print wheel structure;

FIG. 3 is a partial cross-sectional view of AA in FIG. 2.

Description of the reference numerals

1 rightmost first character wheel on character wheel

2 magnet

3 balance weight

4 reverse buckle

41 notch

51 magnetic sampling cavity

52 balance chamber

6 dry reed pipe

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the specific implementation: as shown in fig. 1 to 3, a magnetic signal mounting structure includes a print wheel, and further includes a signal acquisition mechanism and a balance mechanism for mounting on the print wheel; the balance mechanism is used for balancing acting force of the wheel disc on the signal acquisition mechanism in the rotation process of the character wheel.

The acting force comprises the comprehensive influence of the reacting force of gravity and magnetic force, the original single magnet and the balance weight can only overcome the stress balance of a specific angle (such as the stress angle when the wheel rotates to the horizontal position), but the left and the right of the wheel disc are easily stressed unevenly at other angles, and the stress balance condition of a complete 360 degrees cannot be balanced, so that the character wheel moves or is stuck when rotating.

The signal acquisition mechanism comprises a magnetic signal collector; the magnetic signal collector comprises a reed switch 6 or a Hall element (not shown in the figure).

The reed switch 6 or the Hall element collects signals, the structure is simple, the collection is more convenient, and the cost is low.

The magnetic signal mounting structure further comprises at least one magnet 2, and each magnet 2 is of a cylindrical structure with a square cross section and is mounted in a corresponding mounting groove on the character wheel.

Therefore, the magnet can be effectively prevented from being assembled wrongly, and the assembly correctness and the assembly efficiency are improved.

When in implementation, the character wheel is internally provided with a magnetism collecting cavity 51, and the magnet 2 is fixedly connected in the magnetism collecting cavity 51.

Thus, the magnet 2 can periodically collect signals according to the rotation of the character wheel, and the collected signals are more accurate and strong in stability.

Wherein, the magnet 2 has at least one pair, and each pair of magnet 2 all installs on the character wheel, and each pair of magnet 2 is relative with the character wheel axle center.

When the existing product collects magnetic signals, the magnetic signals can be collected only by waiting for one rotation of the character wheel, so that the sampling frequency is low. Particularly, in the working process of gas flow and high flow, the larger the flow is, the faster the counter rotates, and abnormal conditions such as signal loss and the like are easy to occur, so that metering errors or trade disputes are caused;

therefore, the pair of magnets 2 is arranged, so that two magnetic signals can be acquired when the character wheel rotates for one circle, and the sampling efficiency is improved;

meanwhile, magnetic interference generated by too close distance of the magnet 2 is avoided;

the phenomenon that the sampling frequency of the magnet 2 is not symmetrically distributed and errors easily occur is avoided;

and the situation that the reed switch or the Hall element for sampling the magnet 2 cannot be distinguished in time when the character wheel rotates rapidly due to the fact that the magnet 2 is too close to the magnet is avoided.

Wherein the balancing mechanism comprises a weight applying device; the weight applying device comprises a weight applying body; the weight applying body comprises a counterweight 3.

Thus, the counterweight 3 has a simple structure and low cost.

Wherein, the counter weight 3 has at least one, and every counter weight 3 is cylindrical structure and installs in the corresponding assembly groove on the character wheel.

Therefore, the error assembly can be effectively avoided and prevented, and the assembly correctness and the assembly efficiency are improved.

During implementation, a balance cavity 52 is formed in the character wheel, and the balance weight 3 is inserted in the balance cavity 52.

In this way, the counterweight 3 is directly mounted on the print wheel, and the weight application response to the print wheel is faster.

Wherein, the counter weight 3 has at least one pair, and every pair of counter weight 3 all installs on the character wheel, and every pair of counter weight 3 is relative with the character wheel axle center.

Thus, when the plurality of magnets 2 are mounted, the plurality of magnets 2 can be more favorably balanced in force, and the balance method is simple and stable.

Wherein, the included angle between the central line of the magnet 2 and the central lines of two adjacent balance weights 3 is equal.

In practice, the center line of the magnet 2 refers to the center line on the magnet 2 which is radially outwards diverged by the axle center of the character wheel;

the center line of the counter weight 3 means a center line on the counter weight 3 which diverges radially outward from the center of the character wheel.

Thus, the force applied by the magnet 2 and the counter weight 3 against the print wheel can be calculated more easily, and the weights of the magnet 2 and the counter weight 3 can be adjusted more easily.

Wherein, the included angle between the central line of the magnet 2 and the central lines of the two adjacent balance weights 3 is a right angle.

Thus, under the condition that only one pair of magnets 2 and one pair of balance weights 3 are arranged, the stress on the print wheel can be well and uniformly dispersed, the print wheel is enabled to be more balanced when rotating, and the manufacturing process for oppositely installing the plurality of pairs of magnets 2 and the plurality of pairs of balance weights 3 is simpler, lower in cost and higher in economic benefit.

Wherein, the magnet 2 and the balance weight 3 are both provided with an inverted buckle 4; the reverse buckle 4 is connected with the character wheel.

In the implementation process, the reverse buckle 4 is provided with a notch 41, and the magnet 2 is buckled with the magnetism collecting cavity through the notch 41 on the reverse buckle 4;

the balance weight 3 is buckled with the balance cavity through a notch 41 on the reverse buckle 4.

This effectively prevents the magnet 2 and the counter weight 3 from falling off the print wheel.

In practice, the magnets and the balance mechanism mounted on the character wheel are positioned on the rightmost first character wheel 1 on the character wheel (and similarly, the character wheels can be positioned at other positions).

The rightmost first character wheel can continuously rotate in the using process of a counter (not limited to a gas meter, can be a measuring mechanical counter of water, electricity and gas, and is used for collecting counters with functions of remote transmission and the like of counter reading), so that the rotation of the character wheel can be more stable and accurate, and the precision and the reliability of a measuring instrument adopting the product can be better ensured.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the technical scope of the present invention, and the technical scope of the present invention is also considered to fall into the scope of the claims.

Claims (8)

1. A magnetic signal mounting structure, includes the character wheel, its characterized in that: the device also comprises a signal acquisition mechanism and a balance mechanism which is used for being arranged on the character wheel; the balance mechanism is used for balancing acting force of the wheel disc on the signal acquisition mechanism in the rotation process of the character wheel.

2. A magnetic signal mounting structure according to claim 1, wherein: the signal acquisition mechanism comprises a magnetic signal acquisition device; the magnetic signal collector comprises a reed switch or a Hall element.

3. A magnetic signal mounting structure according to claim 2, wherein: the magnetic wheel further comprises at least one magnet, and each magnet is of a cylindrical structure and is arranged in the corresponding mounting groove on the character wheel.

4. A magnetic signal mounting structure according to claim 3, wherein: the magnetic bodies are at least one pair, each pair of magnetic bodies is arranged on the character wheel, and the magnetic bodies of each pair are opposite to each other by the axle center of the character wheel.

5. A magnetic signal mounting structure according to claim 3, wherein: the magnets and the balance mechanism arranged on the character wheels are positioned on the rightmost first character wheel on the character wheels.

6. A magnetic signal mounting structure according to claim 2, wherein: the balance mechanism comprises a weight applying device; the weight applying device comprises a weight applying body; the weight applying body comprises a balance weight.

7. A magnetic signal mounting structure according to claim 6, wherein: the balance weight has at least one, and every balance weight is the cylindricality structure and installs in the assembly groove that corresponds on the character wheel.

8. A magnetic signal mounting structure according to claim 6, wherein: the counter weights are at least one pair, each pair of counter weights is arranged on the character wheel, and each pair of counter weights is opposite to the axle center of the character wheel.

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