Ultrasonic gas meter structure

Abstract

The utility model relates to an ultrasonic gas meter structure which comprises a base meter and a surface cover assembly assembled on the base meter. The base meter comprises a front shell and a rear shell, and the front shell and the rear shell are combined through a pressing sealing ring. A circle of groove is circumferentially formed in the surface of the front shell, a sealing ring is assembled in the groove, and a plurality of sealing pressing ribs opposite to the groove in position are arranged on one side, close to the front shell, of the surface cover assembly; when the surface cover assembly and the base meter are assembled, the sealing pressing rib abuts against and extrudes the sealing ring located in the groove. The external shell controller module structure of the ultrasonic steel shell gas meter is simple in structure and convenient to install, can achieve the IPX6 ultrasonic steel shell gas meter external shell controller module structure, and has important significance for improving the production efficiency and the waterproofness of the ultrasonic gas meter and reducing the production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas meters, in particular to an ultrasonic gas meter structure. Background Art

[0002] As a new type of metering equipment, ultrasonic gas meter has the characteristics of high precision, high reliability and high intelligence. Its appearance not only improves the accuracy and reliability of gas metering, but also provides users with more convenient energy metering services. With the continuous advancement of science and technology and the increase in market demand, ultrasonic gas meters will be more widely used and promoted in the future. However, the external shell controller module design of existing ultrasonic steel shell gas meters often has problems such as complex structure, difficult installation, and poor waterproofness.

[0003] Especially in the controller shell, many manufacturers divide it into upper and lower shell structures. The controller shell is composed of two components: the base component and the cover component. This design scheme greatly restricts the cost control of the ultrasonic gas meter. In addition, there are too many component installation joints and surfaces, and the waterproof design is difficult. Since the battery compartment structure is in a state that can be opened and closed, it must also be compatible with normal easy-to-open and easy-to-close operations, so it is difficult for this structure to reach IPx6.

[0004] Nowadays, under the background of fierce competition in the domestic ultrasonic gas meter market, various manufacturers are actively exploring the optimal solution for cost control of their own products, and the solution of reducing costs and increasing efficiency has become a breakthrough point for major manufacturers.

[0005] In view of the above problems, it is necessary to improve them. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provide an ultrasonic gas meter structure with simple structure, reasonable design, convenient installation, good waterproof performance and low cost.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is: an ultrasonic gas meter structure, including a base meter and a face cover assembly assembled on the base meter; the base meter includes a front shell and a rear shell, and the front shell and the rear shell are connected by a compression sealing ring; a circle of grooves are circumferentially arranged on the surface of the front shell, and a sealing ring is assembled in the groove, and a plurality of sealing pressing ribs corresponding to the position of the grooves are arranged on the side of the face cover assembly close to the front shell; when the face cover assembly is assembled with the base meter, the sealing pressing ribs abut and squeeze the sealing ring located in the groove.

[0008] As a preferred solution of the utility model, a first accommodating cavity is formed between the front shell and the rear shell; a flow metering device is installed in the first accommodating cavity, and the flow metering device is electrically connected to the main control board; the main control board is located in the face cover assembly.

[0009] As a preferred solution of the utility model, the front shell body further has an inlet and an outlet, and both the inlet and the outlet are communicated with the first accommodating cavity.

[0010] As a preferred solution of the utility model, a key switch and a coil spring are installed on the main control board; a cylindrical boss is installed on the front shell, the key switch abuts against the cylindrical boss, and the coil spring is located between the main control board and the front shell.

[0011] As a preferred solution of the utility model, a plurality of welding studs are arranged circumferentially on the surface of the front shell body, and the plurality of welding studs are all located outside the groove.

[0012] As a preferred solution of the utility model, a guiding slope is formed at the front end of the sealing pressing rib, and the guiding slope decreases successively along the insertion direction of the sealing pressing rib.

[0013] As a preferred solution of the utility model, the face cover assembly includes a face cover shell, a cavity for accommodating a battery box is provided inside the face cover shell; a battery door cover for covering the cavity is provided on the face cover shell.

[0014] As a preferred solution of the utility model, a control button is provided on the surface cover shell, and the control button is electrically connected to the main control board.

[0015] As a preferred solution of the utility model, a second door cover rib is provided on the outer wall of the battery door cover, and correspondingly, a limiting groove corresponding to the second door cover rib is formed on the face cover shell. When the battery door cover is closed, the second door cover rib is embedded in the limiting groove.

[0016] As a preferred solution of the utility model, a limiting protrusion is arranged on the second door cover rib, and correspondingly, a locking groove is formed on the limiting groove. When the second door cover rib is embedded in the limiting groove, the limiting protrusion and the locking groove are mutually engaged and locked.

[0017] As a preferred solution of the utility model, a circle of first door cover convex ribs is provided on the inner wall of the battery door cover, and a circle of surface cover convex ribs is provided on the surface cover shell, and the surface cover convex ribs are located at the upper end of the cavity. When the battery door cover is closed, the first door cover convex ribs and the surface cover convex ribs fit each other.

[0018] As a preferred solution of the utility model, a circle of third door cover ribs is provided on the inner wall of the battery door cover, the third door cover ribs are located on the inner side of the first door cover ribs, and an assembly groove is formed between the third door cover ribs and the first door cover ribs. When the battery door cover is closed, the first door cover ribs are embedded in the assembly groove.

[0019] As a preferred solution of the present utility model, the thickness of the first door cover rib corresponds to the groove width of the assembly groove.

[0020] As a preferred solution of the present utility model, the height of the first door cover rib is not greater than the height of the assembly groove.

[0021] The beneficial effects of the utility model are as follows: the utility model has a simple structure, is easy to install, and can achieve an IPX6 ultrasonic steel shell gas meter external shell controller module structure, which is of great significance for improving production efficiency and ultrasonic gas meter waterproofness and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the ultrasonic gas meter structure of the utility model;

[0023] Figure 2 It is a usage state diagram of the base meter of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the base meter of the utility model;

[0025] Figure 4 It is a cross-sectional view of the assembly of the groove and the sealing ring of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the face cover assembly of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the main control board of the utility model;

[0028] Figure 7 It is a cross-sectional view of the structure of the ultrasonic gas meter of the utility model;

[0029] Figure 8 This is a diagram showing the use status of the ultrasonic gas meter structure of the utility model;

[0030] The accompanying drawings are denoted as follows: base table 1, cover assembly 2, main control board 3, first accommodating cavity 4, control button 5, second door cover rib 6, limiting groove 7, limiting protrusion 8, locking groove 9, front shell 10, rear shell 11, pressure seal 12, groove 13, sealing ring 14, welding stud 15, cylindrical boss 16, sealing pressing rib 20, guide slope 21, cover shell 22, battery box 23, cavity 24, battery door cover 25, first door cover rib 26, cover protrusion 27, third door cover rib 28, assembly groove 29, key switch 31, coil spring 32, inlet 101, outlet 102. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example:

[0034] like Figure 1-8 As shown, the ultrasonic gas meter structure provided in this embodiment includes a base meter 1 and a face cover assembly 2 assembled on the base meter 1; the base meter 1 includes a front shell 10 and a rear shell 11, and the front shell 10 and the rear shell 11 are combined by a compression seal 12; a circle of grooves 13 are circumferentially arranged on the surface of the front shell 10, and a sealing ring 14 is assembled in the groove 13, and a plurality of sealing pressing ribs 20 corresponding to the position of the groove 13 are arranged on the side of the face cover assembly 2 close to the front shell 10; when the face cover assembly 2 is assembled with the base meter 1, the sealing pressing ribs 20 abut against and squeeze the sealing ring 14 located in the groove 13; the cover assembly 2 can be fixed to the front shell 10 by welding studs on the front shell 10 of the base meter 1 through M4 screws.

[0035] The base watch 1 provided by the utility model adopts a special mold for one-time compression sealing when assembling the front shell 10 and the rear shell 11. At the same time, the polyurethane silicone with stable performance can be filled between the front shell 10 and the rear shell 11, so that the pressure resistance is enhanced and the sealing safety is high.

[0036] A first accommodating chamber 4 is formed between the front shell 10 and the rear shell 11; a flow metering device (not shown in the figure) is installed in the first accommodating chamber 4, and the flow metering device is a conventional existing solution. The flow metering device is electrically connected to the main control board 3; the main control board 3 is located in the face cover assembly 2.

[0037] Specifically, the front shell body 10 is a steel shell, and the groove 13 on the front shell body 10 is formed by stamping. The groove 13 is installed with a concave-shaped sealing ring 14. The concave-shaped sealing ring 14 can wrap the sealing pressing rib 20 of the face cover assembly 2, thereby increasing the sealing area. Therefore, the installation joint surface between the face cover assembly and the front shell body 10 of the base meter can reach IPx6.

[0038] The front housing 10 also has an inlet 101 and an outlet 102, both of which are connected to the first accommodating chamber 4. The specific locations of the inlet 101 and the outlet 102 can also be exchanged or otherwise adjusted, which is not limited in the embodiment of the present application.

[0039] A key switch 31 and a coil spring 32 are installed on the main control board 3 ; a cylindrical boss 16 is installed on the front housing 10 , the key switch 31 abuts against the cylindrical boss 16 , and the coil spring 32 is located between the main control board 3 and the front housing 10 .

[0040] The structure is grounded through a coil spring 32. One end of the coil spring 32 is welded to the main control board 3, and the other end is installed in the face cover assembly 2 on the main control board 3. After the face cover assembly 2 is fixed to the front shell 10 of the base watch, the coil spring 32 is grounded to the front shell 10 through elastic deformation.

[0041] In this embodiment, the key switch 31 serves as a cover opening alarm, and the coil spring 32 serves as a grounding.

[0042] A plurality of welding studs 15 are arranged circumferentially on the surface of the front shell 10, and the plurality of welding studs 15 are all located on the outside of the groove 13; the ultrasonic gas meter has an anti-cover opening function, and the function is that a key switch 31 is provided behind the main control board 3. After the main control board 3 is installed with the surface cover assembly 2 and fixed with the front shell 10 of the base meter, the top button of the key switch 31 presses against the cylindrical boss 16 welded on the front shell 10 of the base meter to realize the cover opening alarm function. When the surface cover assembly 2 is opened by external force, the key switch 31 will pop out, and the main control board 3 receives the alarm signal.

[0043] A guide slope 21 is formed at the front end of the sealing pressing rib 20, and the guide slope 21 decreases successively along the insertion direction of the sealing pressing rib 20; the end of the sealing pressing rib 20 is in a structure that is wide at the bottom and narrow at the top, so that the stress of the guide slope 21 is more concentrated during the extrusion process with the sealing ring 14, thereby improving the assembly efficiency and sealing between the base surface 1 and the surface cover assembly 2. At the same time, the top of the sealing pressing rib 20 can be formed into an arc shape; while improving the stress concentration, it also avoids the damage of the sealing ring 14 by the end of the sealing pressing rib 20. Setting the arc shape also increases the force-bearing area of ​​the sealing pressing rib 20 and the sealing ring, thereby extending the service life of the sealing ring 14.

[0044] The face cover assembly 2 includes a face cover shell 22, in which a cavity 24 for accommodating a battery box 23 is provided; a battery door cover 25 for covering the cavity 24 is provided on the face cover shell 22; a control button 5 is provided on the face cover shell 22, and the control button 5 is electrically connected to the main control board 3; in one possible implementation, the control button 5 can be a button, a knob or a touch screen panel, etc.

[0045] A second door cover rib 6 is provided on the outer wall of the battery door cover 25, and correspondingly, a limiting groove 7 corresponding to the second door cover rib 6 is formed on the surface cover shell 22. When the battery door cover 25 is closed, the second door cover rib 6 is embedded in the limiting groove 7; more specifically, the battery door cover 25 and the surface cover shell 22 are detachably connected, including but not limited to a snap-on structure or fasteners, as long as the battery box 23 is convenient to replace.

[0046] A limiting protrusion 8 is arranged on the second door cover rib 6, and correspondingly, a locking groove 9 is formed on the limiting groove 7. When the second door cover rib 6 is embedded in the limiting groove 7, the limiting protrusion 8 and the locking groove 9 are engaged and locked with each other; the limiting is performed by the buckle structure of the limiting protrusion 8 and the locking groove 9, so that the battery door cover 25 will not be disengaged due to vibration, thereby ensuring the reliability of the battery box sealing, reducing the risk of battery damage, and increasing the service life of the battery box. Even if the user forgets to close the door cover after replacing the battery, the independent waterproof sealing performance of the battery box can ensure the working environment of the battery.

[0047] A circle of first door cover ribs 26 is provided on the inner wall of the battery door cover 25, and a circle of surface cover ribs 27 is provided on the surface cover shell 22, and the surface cover ribs 27 are located at the upper end of the cavity 24. When the battery door cover 25 is closed, the first door cover ribs 26 and the surface cover ribs 27 fit together; a circle of third door cover ribs 28 is provided on the inner wall of the battery door cover 25, and the third door cover ribs 28 are located on the inner side of the first door cover ribs 26, and an assembly groove 29 is formed between the third door cover ribs 28 and the first door cover ribs 26. When the battery door cover 25 is closed, the first door cover rib 26 is embedded in the assembly groove 29.

[0048] The utility model forms a waterproof layer among the battery door cover, the cavity 24 and the battery box 23 by arranging the mutual cooperation among the battery door cover 25, the first door cover convex rib 26, the surface cover convex rib 27, the third door cover convex rib 28 and the assembly groove 29, which not only achieves the IPX6 waterproof sealing performance and prolongs the service life of the battery box, but also facilitates the replacement of the battery box as a whole; the utility model is cleverly designed, and the battery box 23 can be detachably assembled in the battery box 23, which facilitates the replacement of the entire battery box; specifically, in this embodiment, the sealing structure of the battery box 23 and the relevant description can refer to the application number: 202322628140.0, which will not be repeated in this scheme.

[0049] The battery box can reach IPx6. After the battery box is placed in the cavity 24, a waterproof wire is inserted into a hole above the cavity 24 to connect to the main control board 3. The hole is blocked by a sealing silicone block on the battery box wire to prevent water from entering the main control board compartment.

[0050] Specifically, the thickness of the first door cover rib 26 corresponds to the groove width of the assembly groove 29 ; and the height of the first door cover rib 26 is not greater than the height of the assembly groove 29 .

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0052] Although the following terms are used more frequently in this article: base table 1, cover assembly 2, main control board 3, first accommodating cavity 4, control button 5, second door cover rib 6, limit groove 7, limit protrusion 8, locking groove 9, front shell 10, rear shell 11, pressure seal 12, groove 13, sealing ring 14, welding stud 15, cylindrical boss 16, sealing pressing rib 20, guiding inclined surface 21, cover shell 22, battery box 23, cavity 24, battery door cover 25, first door cover rib 26, cover protrusion 27, third door cover rib 28, assembly groove 29, key switch 31, coil spring 32, inlet 101, outlet 102, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. Ultrasonic gas meter structure, characterized by: The invention comprises a base meter (1) and a cover assembly (2) mounted on the base meter (1); the base meter (1) comprises a front shell (10) and a rear shell (11), the front shell (10) and the rear shell (11) being connected by a sealing ring (12); a circle of grooves (13) are arranged circumferentially on the surface of the front shell (10), a sealing ring (14) is mounted in the groove (13), and a plurality of sealing pressing ribs (20) are arranged on the side of the cover assembly (2) close to the front shell (10) and opposite to the groove (13); when the cover assembly (2) and the base meter (1) are assembled, the sealing pressing ribs (20) abut against and press the sealing ring (14) located in the groove (13).

2. The ultrasonic gas meter structure according to claim 1, characterized in that: A first accommodating chamber (4) is formed between the front housing (10) and the rear housing (11); a flow metering device is installed in the first accommodating chamber (4), and the flow metering device is electrically connected to the main control board (3); the main control board (3) is located in the cover assembly (2).

3. The ultrasonic gas meter structure according to claim 2, characterized in that: The front housing (10) also has an inlet (101) and an outlet (102), and both the inlet (101) and the outlet (102) are in communication with the first accommodating chamber (4).

4. The ultrasonic gas meter structure according to claim 2, characterized in that: A key switch (31) and a coil spring (32) are mounted on the main control board (3); a cylindrical boss (16) is mounted on the front housing (10); the key switch (31) is in contact with the cylindrical boss (16); and the coil spring (32) is located between the main control board (3) and the front housing (10).

5. The ultrasonic gas meter structure according to claim 1, characterized in that: The face cover assembly (2) comprises a face cover shell (22), wherein a cavity (24) for accommodating a battery box (23) is provided inside the face cover shell (22); and a battery door cover (25) for covering the cavity (24) is provided on the face cover shell (22).

6. The ultrasonic gas meter structure according to claim 5, characterized in that: The cover shell (22) is provided with a control button (5), and the control button (5) is electrically connected to the main control board (3).

7. The ultrasonic gas meter structure according to claim 5, characterized in that: A second door cover convex rib (6) is provided on the outer wall of the battery door cover (25), and correspondingly, a limiting groove (7) corresponding to the second door cover convex rib (6) is formed on the surface cover shell (22); when the battery door cover (25) is closed, the second door cover convex rib (6) is embedded in the limiting groove (7).

8. The ultrasonic gas meter structure according to claim 7, characterized in that: A limiting protrusion (8) is arranged on the second door cover convex rib (6), and correspondingly, a locking groove (9) is formed on the limiting groove (7); when the second door cover convex rib (6) is embedded in the limiting groove (7), the limiting protrusion (8) and the locking groove (9) are mutually engaged and locked.

9. The ultrasonic gas meter structure according to claim 7, characterized in that: A circle of first door cover convex ribs (26) is provided on the inner wall of the battery door cover (25), and a circle of surface cover convex ribs (27) is provided on the surface cover shell (22). The surface cover convex ribs (27) are located at the upper end of the cavity (24). When the battery door cover (25) is closed, the first door cover convex ribs (26) and the surface cover convex ribs (27) are in contact with each other.

10. The ultrasonic gas meter structure according to claim 9, characterized in that: A circle of third door cover convex ribs (28) is provided on the inner wall of the battery door cover (25); the third door cover convex ribs (28) are located on the inner side of the first door cover convex ribs (26); and an assembly groove (29) is formed between the third door cover convex ribs (28) and the first door cover convex ribs (26); when the battery door cover (25) is closed, the first door cover convex ribs (26) are embedded in the assembly groove (29).

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