Non-magnetic water meter shell

Abstract

The utility model discloses a non-magnetic water meter shell, belongs to the technical field of water meters, and aims to solve the technical problem that normal metering use of a water meter is interfered by a strong magnetic field environment in the prior art. The non-magnetic water meter shell comprises a water meter main shell body, a dial plate and a meter cover, the dial plate is assembled at the top end of the water meter main shell body, the meter cover covers the dial plate, and magnetic isolation layers are arranged in the shell walls of the water meter main shell body, the dial plate and the meter cover and used for blocking magnetic interference of an external environment magnetic field on the water meter main shell body and the dial plate. According to the non-magnetic water meter shell, a magnetism isolating cover layer can be formed in the water meter shell to absorb, disperse or guide an external magnetic field, so that the influence of the external magnetic field on water meter equipment is reduced, a water meter works in a non-magnetic environment, and the phenomena of inaccurate reading and even failure of the water meter caused by interference of the external high-intensity magnetic field on a flow calculation device in the water meter are avoided; metering accuracy of the water meter is guaranteed, and performance of the water meter is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water meters, and in particular relates to a non-magnetic water meter shell. Background Art

[0002] A water meter is a meter used to measure water flow and is widely used in households, businesses and industries. It is mainly used to measure water consumption, control water consumption, bill water consumption and alarm water consumption.

[0003] As an important instrument for measuring water volume, the accuracy and stability of water meters are of vital importance. However, when a water meter is in a strong magnetic field environment, the magnetic field may interfere with the flow calculation device inside the water meter, resulting in inaccurate readings or even malfunction of the water meter. Magnetic isolation design is an important means to prevent such interference and ensure the accuracy of water meter measurement. Therefore, this application proposes a non-magnetic water meter housing. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a non-magnetic water meter housing, aiming to solve the technical problem that a strong magnetic field environment in the prior art may interfere with the normal measurement use of the water meter.

[0005] In order to solve the above technical problems, the utility model provides a non-magnetic water meter housing, including a water meter main housing, a dial and a meter cover, the dial being assembled on the top of the water meter main housing, the meter cover being arranged on the dial, and the shell walls of the water meter main housing, the dial and the meter cover are all provided with a magnetic isolation layer for blocking the magnetic interference of the external environment magnetic field on the water meter main housing and the dial.

[0006] Preferably, the magnetic isolation layer is made of any one of copper, aluminum and iron-nickel alloy.

[0007] Preferably, a vacuum interlayer is provided in the shell wall of the water meter main shell and the dial, and the vacuum interlayer is located on the side of the magnetic isolation layer facing the inside of the water meter main shell and the dial.

[0008] Preferably, a boss is provided on the top of the dial, and the watch cover is buckled with the boss.

[0009] Preferably, one side of the watch cover is hinged to the watch dial, and a connecting block is fixed to the other side of the watch cover. A pair of fixed blocks are fixed on the outer wall of the dial, and the connecting block can be inserted between the pair of fixed blocks. The pair of fixed blocks are provided with a limiting member for limiting the connecting block inserted between the pair of fixed blocks.

[0010] Preferably, the limiting member includes a sleeve installed on one side of a pair of fixed blocks away from each other, a limiting pin movably inserted into the end of the sleeve facing the fixed block, and a spring arranged between the limiting pin and the inner end wall of the sleeve, the end face of the limiting pin is set to a spherical surface and passes through the fixed block, and the side of the connecting block is provided with a limiting groove that can accommodate the spherical surface of the limiting pin to be embedded.

[0011] Preferably, a baffle is provided at one end of the limiting pin extending into the sleeve, and the baffle is slidably fitted with the inner wall of the sleeve. An end cap is threadedly connected to one end of the sleeve facing the fixed block, and the end cap is fixed on the fixed block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a magnetic isolation layer inside the shell wall of the water meter main shell, dial and cover, and the magnetic isolation layer is made of any one of copper, aluminum and iron-nickel alloy, so that a magnetic isolation cover layer can be formed inside the water meter shell composed of the water meter main shell, dial and cover to absorb, disperse or guide the external magnetic field, thereby reducing the influence of the external magnetic field on the water meter equipment, allowing the water meter to work in a non-magnetic environment, avoiding the external strong magnetic field from interfering with the flow calculation device inside the water meter, resulting in inaccurate readings or even water meter malfunction, thereby ensuring the accuracy of water meter measurement. In addition, a vacuum interlayer is provided on the inner side of the magnetic isolation layer of the dial and the main shell of the water meter, so as to avoid the influence of heat energy converted by electromagnetic waves absorbed by the magnetic isolation layer on the internal components of the water meter. The water meter has a certain heat insulation effect on the basis of magnetic isolation, thereby improving the performance of the water meter.

[0014] The utility model provides a connecting block and a fixing block. After the meter cover is rotatably covered on the meter dial, the connecting block is embedded between a pair of fixing blocks on the outer wall of the meter dial. The elastic support of the limiting pin by the spring in the sleeve makes the spherical end of the limiting pin embed into the limiting groove on the connecting block, so as to limit the meter cover and avoid the problem that the loosening of the meter cover affects the magnetic isolation protection effect of the water meter. Moreover, since the spherical end of the limiting pin is embedded in the limiting groove, when reading the meter, it is only necessary to apply force to push the meter cover so that the connecting block can be separated from the pair of fixing blocks. The structure is simple, practical and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the shell wall of the main shell of the water meter in the utility model;

[0018] Figure 3 For this utility model Figure 1 A in the enlarged view;

[0019] Figure 4 For this utility model Figure 1 The enlarged view of point B in the figure;

[0020] Figure 5 It is a structural schematic diagram of the limiting member in the utility model.

[0021] The markings in the attached drawings are: 1. main body of the water meter; 2. dial; 3. meter cover; 4. magnetic isolation layer; 5. connecting block; 6. limiting groove; 7. boss; 8. fixing block; 9. limiting member; 10. sleeve; 11. limiting pin; 12. spring; 13. baffle; 14. end cover; 15. vacuum interlayer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] This embodiment provides a non-magnetic water meter housing, and its structural schematic diagram is as follows: Figure 1 - Figure 5 As shown, the water meter comprises a main housing 1, a dial 2 and a cover 3, wherein the dial 2 is mounted on the top of the main housing 1, and the cover 3 is mounted on the dial 2. A magnetic isolation layer 4 is arranged inside the shell walls of the main housing 1, the dial 2 and the cover 3 of the water meter, and a magnetic isolation cover layer can be formed inside the water meter housing composed of the main housing 1, the dial 2 and the cover 3 of the water meter, so as to block the magnetic interference of the external environmental magnetic field on the main housing 1 and the dial 2 of the water meter. The magnetic isolation layer 4 is made of any one of copper, aluminum and iron-nickel alloy, and is used to absorb, disperse or guide the external magnetic field according to the material properties, so as to reduce the influence of the external magnetic field on the water meter equipment, so that the water meter can work in a non-magnetic environment, and avoid the external strong magnetic field interfering with the flow calculation device inside the water meter, resulting in inaccurate readings, or even malfunction of the water meter, thereby ensuring the accuracy of the water meter measurement.

[0024] In a further embodiment, a vacuum interlayer 15 is further provided in the shell wall of the water meter main shell 1 and the dial 2. The vacuum interlayer 15 is located on the side of the magnetic isolation layer 4 facing the inside of the water meter main shell 1 and the dial 2. Through this structural method, the influence of the heat energy converted by the electromagnetic waves absorbed by the magnetic isolation layer 4 on the internal components of the water meter can be avoided. The water meter has a certain heat insulation effect on the basis of magnetic isolation, thereby improving the performance of the water meter.

[0025] In this embodiment, a boss 7 is provided on the top of the dial 2 , and the watch cover 3 is buckled with the boss 7 , which is beneficial to the sealing of the watch cover 3 and the dial 2 .

[0026] As a preferred technical solution in this embodiment, one side of the watch cover 3 is hinged to the watch dial 2, and a connecting block 5 is fixed to the other side of the watch cover 3. A pair of fixing blocks 8 are fixed on the outer wall of the watch dial 2, and the connecting block 5 can be inserted between the pair of fixing blocks 8. A limiting member 9 for limiting the connecting block 5 inserted between the pair of fixing blocks 8 is provided on the pair of fixing blocks 8. The limiting member 9 includes a sleeve 10 installed on one side of the pair of fixing blocks 8 away from each other, a limiting pin 11 movably inserted through the end of the sleeve 10 facing the fixing block 8, and a spring 12 arranged between the limiting pin 11 and the inner end wall of the sleeve 10, and the end face of the limiting pin 11 is set to a spherical surface and penetrates The fixing block 8 is passed through, and a limiting groove 6 is opened on the side of the connecting block 5, which can accommodate the spherical embedding of the limiting pin 11. After the meter cover 3 is rotated and covered on the dial 2, the connecting block 5 is embedded between a pair of fixing blocks 8 on the outer wall of the dial 2. The elastic support of the limiting pin 11 by the spring 12 in the sleeve 10 makes the spherical end of the limiting pin 11 embed into the limiting groove 6 on the connecting block 5, which can realize the limitation of the meter cover 3 and avoid the problem of loosening of the meter cover 3 affecting the magnetic isolation protection effect of the water meter. Moreover, since the spherical end of the limiting pin 11 is embedded in the limiting groove 6, when reading the meter, it is only necessary to apply force to push the meter cover 3, and the connecting block 5 can be separated from the pair of fixing blocks 8.

[0027] Furthermore, a baffle 13 is provided at one end of the limiting pin 11 extending into the sleeve 10, and the baffle 13 is slidably fitted with the inner wall of the sleeve 10 to limit the extension and retraction of the limiting pin 11. An end of the sleeve 10 facing the fixed block 8 is threadedly connected with an end cap 14, which is fixed on the fixed block 8 to facilitate the assembly of the sleeve 10.

[0028] Working principle: When in use, a magnetic isolation layer 4 is provided inside the shell wall of the water meter main shell 1, the dial 2 and the cover 3, and the magnetic isolation layer 4 is made of any one of copper, aluminum and iron-nickel alloy, so that a magnetic isolation cover layer can be formed inside the water meter shell composed of the water meter main shell 1, the dial 2 and the cover 3 to absorb, disperse or guide the external magnetic field, thereby reducing the influence of the external magnetic field on the water meter equipment, allowing the water meter to work in a non-magnetic environment, avoiding external strong magnetic fields from interfering with the flow calculation device inside the water meter, resulting in inaccurate readings, or even water meter malfunction, thereby ensuring the accuracy of water meter measurement. In addition, a vacuum interlayer 15 is provided on the inner side of the magnetic isolation layer 4 of the dial 2 and the main shell 1 of the water meter, which can avoid the magnetic isolation layer 4 The heat energy converted by absorbing electromagnetic waves affects the internal components of the water meter. On the basis of magnetic isolation, the water meter has a certain heat insulation effect, thereby improving the performance of the water meter. In addition, after the meter cover 3 is rotated and closed on the dial 2, the connecting block 5 is embedded between a pair of fixed blocks 8 on the outer wall of the dial 2, and the elastic support of the limiting pin 11 by the spring 12 in the sleeve 10 is used to make the spherical end of the limiting pin 11 embedded in the limiting groove 6 on the connecting block 5, which can realize the limitation of the meter cover 3 and prevent the loosening of the meter cover 3 from affecting the magnetic isolation protection effect of the water meter. Moreover, since the spherical end of the limiting pin 11 is embedded in the limiting groove 6, when reading the meter, it is only necessary to apply force to push the meter cover 3, and the connecting block 5 can be separated from the pair of fixed blocks 8. The structure is simple, practical, and easy to operate.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-magnetic water meter housing, comprising a water meter main housing (1), a dial (2) and a meter cover (3), wherein the dial (2) is mounted on the top of the water meter main housing (1), and the meter cover (3) is arranged on the dial (2), characterized in that: A magnetic isolation layer (4) is provided inside the shell walls of the water meter main shell (1), the dial (2) and the meter cover (3), for blocking magnetic interference of the external environmental magnetic field on the water meter main shell (1) and the dial (2).

2. The non-magnetic water meter housing according to claim 1, characterized in that: The magnetic isolation layer (4) is made of any one of copper, aluminum and iron-nickel alloy.

3. A non-magnetic water meter housing according to claim 2, characterized in that: A vacuum interlayer (15) is also provided in the shell walls of the water meter main shell (1) and the dial (2), and the vacuum interlayer (15) is located on the side of the magnetic isolation layer (4) facing the inside of the water meter main shell (1) and the dial (2).

4. The non-magnetic water meter housing according to claim 1, characterized in that: A boss (7) is provided at the top of the dial (2), and the watch cover (3) is buckled with the boss (7).

5. The non-magnetic water meter housing according to claim 1, characterized in that: One side of the watch cover (3) is hinged to the watch dial (2), and a connecting block (5) is fixed to the other side of the watch cover (3). A pair of fixing blocks (8) are fixed to the outer wall of the watch dial (2), and the connecting block (5) can be inserted between the pair of fixing blocks (8). The pair of fixing blocks (8) are provided with a limiting member (9) for limiting the position of the connecting block (5) inserted between the pair of fixing blocks (8).

6. The non-magnetic water meter housing according to claim 5, characterized in that: The limiting member (9) comprises a sleeve (10) mounted on a side of a pair of fixed blocks (8) away from each other, a limiting pin (11) movably inserted through the end of the sleeve (10) facing the fixed block (8), and a spring (12) arranged between the limiting pin (11) and the inner end wall of the sleeve (10), the end face of the limiting pin (11) being arranged to be a spherical surface and passing through the fixed block (8), and a limiting groove (6) capable of accommodating the spherical surface of the limiting pin (11) to be embedded on the side of the connecting block (5).

7. The non-magnetic water meter housing according to claim 6, characterized in that: One end of the limiting pin (11) extending into the sleeve (10) is provided with a baffle (13), and the baffle (13) is slidably fitted with the inner wall of the sleeve (10). One end of the sleeve (10) facing the fixed block (8) is threadedly connected with an end cover (14), and the end cover (14) is fixed on the fixed block (8).

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