Gas meter shell sealing structure

Abstract

The utility model relates to a gas meter shell sealing structure, and belongs to the field of gas meters. Comprising a gas meter upper cover, a battery filling area upper cover, two sealing mechanisms, a plurality of locking mechanisms, a gas meter lower shell and a plurality of fixing mechanisms. The battery filling area upper cover is hinged to one end of the gas meter upper cover, the gas meter upper cover is detachably arranged on the gas meter lower shell, and the two sealing mechanisms are arranged between the gas meter upper cover and the battery filling area upper cover and between the gas meter upper cover and the gas meter lower shell in a one-to-one correspondence mode. The multiple locking mechanisms in the circumferential direction of the gas meter upper cover correspond to the multiple locking mechanisms in the circumferential direction of the gas meter lower shell in a one-to-one mode and are connected through screws, and the fixing mechanism is arranged on the sides, close to each other, of the gas meter upper cover and the gas meter lower shell. The sealing performance of the gas meter is improved, and internal elements are prevented from being corroded due to the fact that the gas meter works in a humid environment for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas meter, especially a gas meter shell sealing structure. BACKGROUND

[0002] The gas meter is the indispensable equipment of every family in town, and needs to install the gas meter before connecting the natural gas or the marsh gas, is used for controlling the on-off of domestic gas and recording the use amount of gas, the gas meter is seldom moved after installation, and the installation and working environment of the gas meter are generally directly communicated with the external atmosphere, when the external atmosphere is relatively humid, the gas meter needs to have good sealing performance, avoids the humid air outside to enter the inside of the gas meter, and the electronic components or metal parts in the inside of the gas meter are corroded, but there are still a large number of card insertion type gas meters on the market, on the one hand, the card of part card insertion type gas meter is directly exposed outside, even if the gas card is inserted into the gas meter, there will be inevitable gap with the outside, on the other hand, even if the gas card is arranged in the inside of the battery filling area, there will still be inevitable gap between the shell of the battery filling area and the main shell of the gas meter, which is not conducive to the sealing of the gas meter and the long-time work of the gas meter in the humid environment. SUMMARY

[0003] The utility model wants to solve the technical problem that provides a kind of gas meter shell sealing structure to solve the above-mentioned problems.

[0004] The utility model solves the technical scheme of the above technical problem as follows: a kind of gas meter shell sealing structure, comprising: gas meter upper cover, battery filling area upper cover, two sealing mechanisms, multiple locking mechanisms, gas meter lower shell and multiple fixed mechanisms;The battery filling area upper cover is hinged with one end of the gas meter upper cover, the gas meter upper cover is detachably arranged on the gas meter lower shell, two the sealing mechanism is one-to-one and is arranged between the gas meter upper cover and the battery filling area upper cover and the gas meter upper cover and the gas meter lower shell, the multiple locking mechanisms on the circumference of the gas meter upper cover and the multiple locking mechanisms on the circumference of the gas meter lower shell are one-to-one and are connected by screw, and the fixed mechanism is arranged on the side of the gas meter upper cover and the gas meter lower shell close to each other.

[0005] The utility model discloses beneficial effect is: the sealing mechanism is arranged between gas table upper cover and battery filling area upper cover and between gas table upper cover and gas table lower shell, is favorable to avoid the moisture in the outside air through the gap between gas table upper cover and battery filling area upper cover and the gap between gas table upper cover and gas table lower shell and enters the gas table inside, the locking mechanism is set up on the circumference of gas table upper cover and gas table lower shell and is connected through screw, is different from the locking of directly on gas table upper cover through screw and gas table lower shell, is favorable to avoid the moisture from the hole for installing screw on gas table upper cover and enters the gas table inside, the fixing mechanism is favorable to further tightly connect gas table upper cover and gas table lower shell, further avoid the moisture from the gap between gas table upper cover and gas table lower shell and enters the gas table inside, the utility model is favorable to improve the sealing performance of gas table, avoids the internal element of gas table in humid environment long time work and leads to corrosion.

[0006] On the basis of the above technical scheme, the utility model still can make following improvement.

[0007] Further, the gas meter upper cover includes a gas display area and a battery filling area, the battery filling area upper cover is hinged to one end of the battery filling area away from the gas display area through a hinge shaft, a plurality of second clamping holes are arranged side by side on one end of the gas display area close to the battery filling area, a plurality of second clamping blocks are arranged side by side on one end of the battery filling area upper cover away from the hinge shaft, and the plurality of second clamping blocks are one-to-one corresponding and detachably clamped with the plurality of second clamping holes.

[0008] The beneficial effect of the above further scheme is that the battery filling area upper cover is hinged to the battery filling area, which is conducive to maintaining the connection of the shell during battery filling, and the second clamping blocks cooperating with the second clamping holes are conducive to fixing the battery filling area upper cover and the gas meter upper cover to form a whole after the battery filling is completed.

[0009] Further, the sealing mechanism includes two sealing rubber rings and two sealing compression rings, a limiting groove and the sealing compression ring are arranged on one side of the battery filling area and the battery filling area upper cover close to each other, and one side of the gas meter upper cover and the gas meter lower shell close to each other is provided with a limiting groove and the sealing compression ring, and the sealing rubber ring is adaptively arranged in the limiting groove; when the battery filling area and the battery filling area upper cover are clamped, the sealing compression ring on the battery filling area abuts against the sealing rubber ring on the battery filling area upper cover, and the sealing compression ring on the battery filling area upper cover abuts against the sealing rubber ring on the battery filling area; when the gas meter upper cover and the gas meter lower shell are clamped, the sealing compression ring on the gas meter upper cover abuts against the sealing rubber ring on the gas meter lower shell, and the sealing compression ring on the gas meter lower shell abuts against the sealing rubber ring on the gas meter upper cover.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the sealing pressure ring and the sealing rubber ring abut against each other, which helps to fill the gaps between the gas meter upper cover and the gas meter lower shell, as well as between the battery filling area and the battery filling area upper cover, in the axial direction after the sealing rubber ring is pressed by the sealing pressure ring. This prevents moisture in the outside air from entering the gas meter through the gaps between the gas meter upper cover and the gas meter lower shell, as well as the gaps between the battery filling area and the battery filling area upper cover.

[0011] Furthermore, the sealing ring is a ring-shaped structure with a Y-shaped longitudinal cross-section, and the sealing pressure ring is a ring-shaped block structure that is adapted to and abuts against the Y-shaped open end of the sealing ring.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the sealing ring is designed as a Y-shaped annular structure in the longitudinal section, which is beneficial to use the two sides of the Y-shaped opening end of the sealing ring to wrap the contact area between the sealing ring and the sealing pressure ring in the circumferential direction when it comes into contact with the sealing pressure ring, further avoiding the gap caused by the unqualified size of the sealing pressure ring after contact, and further enhancing the sealing performance.

[0013] Furthermore, the battery filling area is provided with a battery filling hole, which is a groove-shaped structure with wire through holes on the side wall, and the wire through holes connect the battery filling hole and the interior of the lower casing of the gas meter.

[0014] The beneficial effect of adopting the above-mentioned further solution is that, compared with the prior art of setting the gas card in the battery filling area, this application eliminates the gas card insertion hole in the battery filling area and only designs a wire hole for passing the battery connection wire, which further avoids moisture entering the gas meter due to too many openings.

[0015] Furthermore, the lower casing of the gas meter is equipped with a circuit board and a drying packaging box. Multiple first snap-fit ​​blocks are wound around the side wall of the lower casing of the gas meter. The circuit board is connected to a sensor for detecting the humidity inside the gas meter. A drying bag for absorbing moisture inside the gas meter is detachably installed inside the drying packaging box.

[0016] The advantages of adopting the above-mentioned further solution are: the circuit board is connected to the sensor used to detect the humidity inside the gas meter, which is conducive to real-time detection of the humidity inside the gas meter and timely alarm through the circuit board; the drying packaging helps to absorb the moisture inside the gas meter by placing the drying package, thus ensuring the dryness of the gas inside the gas meter.

[0017] Furthermore, the dry packaging filling box includes a dry packaging filling box body and a dry packaging filling box cover. The dry packaging filling box body is installed on the inner wall of the lower shell of the gas meter. The top of the dry packaging filling box body is open, and the top side wall is hinged to one side of the dry packaging filling box cover. Multiple through holes are provided on the side wall of the dry packaging filling box body and / or on the dry packaging filling box cover.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: the desiccant pack cover helps to prevent the desiccant packs filled in the desiccant pack body from falling out of the desiccant pack body during the transportation or handling of the gas meter; multiple through holes are provided on the side wall of the desiccant pack body and / or the desiccant pack cover, which helps to connect the desiccant pack with the inside of the gas meter for moisture adsorption.

[0019] Furthermore, the side wall of the gas meter cover is provided with a plurality of first snap-fit ​​holes, each of which corresponds to a plurality of first snap-fit ​​blocks for detachable snap-fit. The gas display area is provided with a sensing area and a digital display area. A transparent resin sheet is provided between the inner wall of the gas display area and the circuit board. Both the sensing area and the digital display area are through holes. The transparent resin sheet covers the sensing area and the digital display area and is sealed to the inner wall of the gas display area.

[0020] The advantages of adopting the above-mentioned further solution are: the sensing area can replace the card insertion method in the existing gas meter by swiping the card, which reduces the possibility of moisture entering the gas meter; the transparent resin sheet can help prevent external moisture from entering the gas meter from the sensing area and the digital display area, while also transmitting the display information on the circuit board to the outside; the first card hole and the first card block can be detachably connected, which is conducive to applying pressure in the axial direction, so that the sealing ring and the sealing pressure ring are kept in abutting state.

[0021] Furthermore, the locking mechanism includes a first locking housing and a second locking housing. The first locking housing of the plurality of locking mechanisms is arranged around the circumference of the lower housing of the gas meter, and the second locking housing of the plurality of locking mechanisms is arranged around the side wall of the upper cover of the gas meter. Both the first locking housing and the second locking housing are provided with axial through holes for screw locking.

[0022] The beneficial effect of adopting the above-mentioned further solution is that: a first locking housing is provided in the circumference of the lower casing of the gas meter, and a second locking housing is provided in the circumference of the upper cover of the gas meter. Compared with the prior art, which directly locks the upper cover of the gas meter to the lower casing of the gas meter with screws, it is beneficial to prevent moisture from entering the gas meter from the holes on the upper cover of the gas meter used for installing screws.

[0023] Furthermore, the fixing mechanism includes a fixing post, a fixing rubber ring, and a limiting block. The limiting block is disposed inside the lower casing of the gas meter. The fixing rubber ring is an annular column structure, and the bottom end of the fixing rubber ring is fixedly connected to the limiting block. The fixing post is vertically disposed on the inner wall of the upper cover of the gas meter and is interference-fitted with the fixing rubber ring.

[0024] The beneficial effects of adopting the above-mentioned further solution are: the fixed column and the fixed rubber ring are conducive to providing axial guidance for the connection between the gas meter upper cover and the gas meter lower shell. At the same time, the interference fit between the fixed column and the fixed rubber ring is conducive to providing axial force even after the first snap hole and the first snap block fail or the locking mechanism fails, ensuring that the sealing rubber ring and the sealing pressure ring can continuously abut and seal. Attached Figure Description

[0025] Figure 1 A top view of the overall structure provided for an embodiment of this utility model;

[0026] Figure 2 A top view of the gas meter cover after the battery filling area cover is opened, according to an embodiment of this utility model;

[0027] Figure 3 A top view of the lower casing of the gas meter provided in an embodiment of this utility model;

[0028] Figure 4 A bottom view of the gas meter cover provided in an embodiment of this utility model;

[0029] Figure 5 A side view of the gas meter cover after the battery filling area cover is opened, according to an embodiment of this utility model;

[0030] Figure 6 A longitudinal sectional view of the sealing mechanism provided in an embodiment of this utility model;

[0031] Figure 7 A schematic diagram of the fixing mechanism provided in the embodiment of this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the drying packaging box provided in an embodiment of the present utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Gas meter top cover; 2. Battery filling area top cover; 3. Sealing mechanism; 4. Locking mechanism; 5. Gas meter lower shell; 6. Fixing mechanism; 11. Gas display area; 12. Battery filling area; 13. First snap-fit ​​hole; 14. Transparent resin sheet; 21. Second snap-fit ​​block; 22. Hinge shaft; 31. Sealing ring; 32. Sealing pressure ring; 33. Limiting groove; 41. First locking housing; 42. Second locking housing; 51. Circuit board; 52. First snap-fit ​​block; 53. Dry packaging filling box; 61. Fixing post; 62. Fixing ring; 63. Limiting block; 111. Sensing area; 112. Digital display area; 121. Battery filling hole; 122. Second snap-fit ​​hole; 123. Wire through hole; 531. Dry packaging filling box body; 532. Dry packaging filling box cover. Detailed Implementation

[0035] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0036] like Figures 1 to 5 As shown, a gas meter housing sealing structure includes: a gas meter upper cover 1, a battery filling area upper cover 2, two sealing mechanisms 3, multiple locking mechanisms 4, a gas meter lower housing 5, and multiple fixing mechanisms 6; the battery filling area upper cover 2 is hinged to one end of the gas meter upper cover 1, the gas meter upper cover 1 is detachably mounted on the gas meter lower housing 5, the two sealing mechanisms 3 are correspondingly disposed between the gas meter upper cover 1 and the battery filling area upper cover 2, and between the gas meter upper cover 1 and the gas meter lower housing 5, the multiple locking mechanisms 4 on the circumferential direction of the gas meter upper cover 1 and the multiple locking mechanisms 4 on the circumferential direction of the gas meter lower housing 5 are correspondingly disposed and connected by screws, and the fixing mechanisms 6 are disposed on the side of the gas meter upper cover 1 and the gas meter lower housing 5 that are close to each other.

[0037] The beneficial effects of this utility model are as follows: Sealing mechanisms are provided between the gas meter cover and the battery filling area cover, as well as between the gas meter cover and the gas meter lower casing. This helps prevent moisture from the outside air from entering the gas meter through the gaps between the gas meter cover and the battery filling area cover, and between the gas meter cover and the gas meter lower casing. A locking mechanism is provided circumferentially between the gas meter cover and the gas meter lower casing, and they are connected by screws. This differs from directly locking the gas meter cover to the gas meter lower casing with screws, which helps prevent moisture from entering the gas meter through the holes in the gas meter cover used for screw installation. The fixing mechanism further ensures a tight connection between the gas meter cover and the gas meter lower casing, further preventing moisture from entering the gas meter through the gaps between them. This utility model improves the sealing performance of the gas meter, preventing corrosion of internal components caused by prolonged operation in humid environments.

[0038] It should be noted that in this application document, "moist vapor" refers to humid vapor, that is, tiny droplets diffused in humid air.

[0039] Preferred, such as Figure 2 As shown, the gas meter cover 1 includes a gas display area 11 and a battery filling area 12. The battery filling area cover 2 and the end of the battery filling area 12 away from the gas display area 11 are hinged by a hinge shaft 22. The gas display area 11 has a plurality of second snap-fit ​​holes 122 arranged side by side at the end near the battery filling area 12. The battery filling area cover 2 has a plurality of second snap-fit ​​blocks 21 arranged side by side at the end away from the hinge shaft 22. The plurality of second snap-fit ​​blocks 21 are adapted one-to-one to be detachably snapped into the plurality of second snap-fit ​​holes 122.

[0040] It should be noted that in the technical solution of this utility model, a housing for mounting the hinge shaft 22 is provided on the side of the battery filling area cover 2 and the battery filling area 12 that are close to each other, thereby preventing moisture from entering the gas meter from the hinge between the battery filling area cover 2 and the battery filling area 12.

[0041] The advantages of adopting the above preferred solution are: the battery filling area cover is hinged to the battery filling area, which is conducive to maintaining the connection of the shell during the battery filling process; the second snap-fit ​​block and the second snap-fit ​​hole are conducive to fixing the battery filling area cover and the gas meter cover into a whole after the battery filling is completed.

[0042] Preferred, such as Figures 2 to 4 As shown, the sealing mechanism 3 includes two sealing rubber rings 31 and two sealing pressure rings 32. Limiting grooves 33 and sealing pressure rings 32 are provided on the sides of the battery filling area 12 and the battery filling area cover 2 that are close to each other when they are engaged, as well as on the sides of the gas meter cover 1 and the gas meter lower shell 5 that are close to each other. The sealing rubber rings 31 are adapted to be disposed within the limiting grooves 33. When the battery filling area 12 and the battery filling area cover 2 are engaged, the sealing pressure rings on the battery filling area 12... 32 abuts against the sealing ring 31 on the upper cover 2 of the battery filling area, and the sealing pressure ring 32 on the upper cover 2 of the battery filling area abuts against the sealing ring 31 on the battery filling area 12; when the upper cover 1 of the gas meter and the lower shell 5 of the gas meter are engaged, the sealing pressure ring 32 on the upper cover 1 of the gas meter abuts against the sealing ring 31 on the lower shell 5 of the gas meter, and the sealing pressure ring 32 on the lower shell 5 of the gas meter abuts against the sealing ring 31 on the upper cover 1 of the gas meter.

[0043] It should be noted that in the technical solution of this utility model, the sealing ring 31 is made of rubber or silicone with good resilience.

[0044] The beneficial effects of adopting the above-mentioned preferred solution are: the sealing pressure ring and the sealing rubber ring abut against each other, which helps to fill the gaps between the gas meter upper cover and the gas meter lower shell, as well as between the battery filling area and the battery filling area upper cover, in the axial direction after the sealing rubber ring is pressed by the sealing pressure ring. This prevents moisture in the outside air from entering the gas meter through the gaps between the gas meter upper cover and the gas meter lower shell, as well as the gaps between the battery filling area and the battery filling area upper cover.

[0045] Preferred, such as Figure 6 As shown, the sealing ring 31 is a ring structure with a Y-shaped longitudinal cross section, and the sealing pressure ring 32 is a ring block structure that is adapted to and abuts against the Y-shaped open end of the sealing ring 31.

[0046] The advantages of adopting the above-mentioned preferred solution are: the sealing ring is designed as a Y-shaped ring structure in the longitudinal section, which is beneficial to wrap the contact area between the sealing ring and the sealing pressure ring in the circumferential direction when it comes into contact with the sealing pressure ring. This further avoids gaps caused by the sealing pressure ring being unqualified after contact, and further enhances the sealing performance.

[0047] Preferred, such as Figure 2 and Figure 5 As shown, the battery filling area 12 is provided with a battery filling hole 121. The battery filling hole 121 is a groove-shaped structure with a wire through hole 123 on the side wall. The wire through hole 123 connects the battery filling hole 121 and the interior of the lower casing 5 of the gas meter.

[0048] The advantages of adopting the above preferred solution are: compared with the prior art where the gas card is placed in the battery filling area, this application eliminates the gas card insertion hole in the battery filling area and only designs a wire hole for the battery connection wire to pass through, which further avoids moisture entering the gas meter due to too many openings.

[0049] Preferred, such as Figure 3 As shown, the lower casing 5 of the gas meter is equipped with a circuit board 51 and a drying packaging box 53. Multiple first snap-fit ​​blocks 52 are wound around the side wall of the lower casing 5 of the gas meter. The circuit board 51 is connected to a sensor for detecting the humidity inside the gas meter. The drying packaging box 53 is detachably equipped with a drying bag for absorbing moisture inside the gas meter.

[0050] The advantages of adopting the above-mentioned preferred solution are: the circuit board is connected to the sensor used to detect the humidity inside the gas meter, which is conducive to real-time detection of the humidity inside the gas meter and timely alarm through the circuit board; the drying packaging helps to absorb the moisture inside the gas meter by placing the drying package, thus ensuring the dryness of the gas inside the gas meter.

[0051] Preferred, such as Figure 8 As shown, the dry packaging filling box 53 includes a dry packaging filling box body 531 and a dry packaging filling box cover 532. The dry packaging filling box body 531 is installed on the inner wall of the lower shell 5 of the gas meter. The top of the dry packaging filling box body 531 is open, and the top side wall is hinged to one side of the dry packaging filling box cover 532. Multiple through holes are provided on the side wall of the dry packaging filling box body 531 and / or on the dry packaging filling box cover 532.

[0052] The advantages of adopting the above preferred solution are: the desiccant pack cover helps to prevent the desiccant packs filled in the desiccant pack body from falling out of the desiccant pack body during the transportation or handling of the gas meter; multiple through holes are provided on the side wall of the desiccant pack body and / or the desiccant pack cover, which helps to connect the desiccant pack with the inside of the gas meter for moisture adsorption.

[0053] Preferred, such as Figure 2 and Figure 4 As shown, a plurality of first snap-fit ​​holes 13 are arranged around the side wall of the gas meter cover 1, and the plurality of first snap-fit ​​holes 13 correspond one-to-one with a plurality of first snap-fit ​​blocks 52 for detachable snap-fit; the gas display area 11 is provided with a sensing area 111 and a digital display area 112, and a transparent resin sheet 14 is provided between the inner wall of the gas display area 11 and the circuit board 51. The sensing area 111 and the digital display area 112 are both through holes, and the transparent resin sheet 14 covers the sensing area 111 and the digital display area 112 and is sealed to the inner wall of the gas display area 11.

[0054] The advantages of adopting the above-mentioned preferred solution are: the sensing area can replace the card insertion method in the existing gas meter by swiping the card, which reduces the possibility of moisture entering the gas meter; the transparent resin sheet can help prevent external moisture from entering the gas meter from the sensing area and the digital display area, while also transmitting the display information on the circuit board to the outside; the first snap-fit ​​hole and the first snap-fit ​​block can be detachably snapped together, which is conducive to applying pressure in the axial direction, so that the sealing ring and the sealing pressure ring are kept in abutting state.

[0055] It should be noted that in the preferred embodiment of this utility model, the card swiping method is in the form of NFC (Near Field Communication).

[0056] Preferred, such as Figure 3 and Figure 4As shown, the locking mechanism 4 includes a first locking housing 41 and a second locking housing 42. The first locking housing 41 of the plurality of locking mechanisms 4 is arranged around the circumference of the lower housing 5 of the gas meter, and the second locking housing 42 of the plurality of locking mechanisms 4 is arranged around the side wall of the upper cover 1 of the gas meter. Both the first locking housing 41 and the second locking housing 42 are provided with axial through holes for screw locking.

[0057] The advantages of adopting the above preferred solution are: a first locking housing is provided in the circumference of the lower casing of the gas meter, and a second locking housing is provided in the circumference of the upper cover of the gas meter. Compared with the prior art, which directly locks the upper cover of the gas meter to the lower casing of the gas meter with screws, it is beneficial to prevent moisture from entering the gas meter from the holes on the upper cover of the gas meter used for installing screws.

[0058] Preferred, such as Figure 7 As shown, the fixing mechanism 6 includes a fixing post 61, a fixing rubber ring 62, and a limiting block 63. The limiting block 63 is disposed inside the lower shell 5 of the gas meter. The fixing rubber ring 62 is an annular column structure. The bottom end of the fixing rubber ring 62 is fixedly connected to the limiting block 63. The fixing post 61 is vertically disposed on the inner wall of the upper cover 1 of the gas meter and is interference-fitted with the fixing rubber ring 62.

[0059] It should be noted that in the technical solution of this utility model, "interference fit" means that the fixing post 61 is axially inserted into the fixing ring 62, so that the inner wall of the fixing ring 62 tightly wraps the outer wall of the fixing post 61.

[0060] The advantages of adopting the above-mentioned preferred solution are: the fixed column and the fixed rubber ring are conducive to providing axial guidance for the connection between the gas meter upper cover and the gas meter lower shell. At the same time, the interference fit between the fixed column and the fixed rubber ring is conducive to providing axial force even after the failure of the first snap hole and the first snap block or the failure of the locking mechanism, so as to ensure that the sealing rubber ring and the sealing pressure ring can continuously abut and seal.

[0061] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gas meter housing sealing structure, characterized in that, include: Gas meter top cover (1), battery filling area top cover (2), two sealing mechanisms (3), multiple locking mechanisms (4), gas meter bottom shell (5), and multiple fixing mechanisms (6); The battery filling area cover (2) is hinged to one end of the gas meter cover (1). The gas meter cover (1) is detachably mounted on the gas meter lower shell (5). Two sealing mechanisms (3) are correspondingly mounted between the gas meter cover (1) and the battery filling area cover (2) and between the gas meter cover (1) and the gas meter lower shell (5). Multiple locking mechanisms (4) on the circumference of the gas meter cover (1) and multiple locking mechanisms (4) on the circumference of the gas meter lower shell (5) are correspondingly mounted and connected by screws. The fixing mechanism (6) is mounted on the side where the gas meter cover (1) and the gas meter lower shell (5) are close to each other.

2. The gas meter housing sealing structure according to claim 1, characterized in that, The gas meter cover (1) includes a gas display area (11) and a battery filling area (12). The battery filling area cover (2) is hinged to the end of the battery filling area (12) away from the gas display area (11) via a hinge shaft (22). The gas display area (11) is provided with a plurality of second snap-fit ​​holes (122) arranged side by side at the end near the battery filling area (12). The battery filling area cover (2) is provided with a plurality of second snap-fit ​​blocks (21) arranged side by side at the end away from the hinge shaft (22). The plurality of second snap-fit ​​blocks (21) are adapted to be detachably snapped into the plurality of second snap-fit ​​holes (122) one by one.

3. The gas meter housing sealing structure according to claim 2, characterized in that, The sealing mechanism (3) includes two sealing rubber rings (31) and two sealing pressure rings (32). When the battery filling area (12) and the battery filling area cover (2) are snapped together, the side that is close to each other, as well as the side that is close to each other, the gas meter cover (1) and the gas meter lower shell (5) are provided with a limiting groove (33) and the sealing pressure ring (32). The sealing rubber ring (31) is adapted to be disposed in the limiting groove (33). When the battery filling area (12) and the battery filling area cover (2) are engaged, the sealing ring (32) on the battery filling area (12) abuts against the sealing rubber ring (31) on the battery filling area cover (2), and the sealing ring (32) on the battery filling area cover (2) abuts against the sealing rubber ring (31) on the battery filling area (12); when the gas meter cover (1) and the gas meter lower shell (5) are engaged, the sealing ring (32) on the gas meter cover (1) abuts against the sealing rubber ring (31) on the gas meter lower shell (5), and the sealing ring (32) on the gas meter lower shell (5) abuts against the sealing rubber ring (31) on the gas meter cover (1).

4. The gas meter housing sealing structure according to claim 3, characterized in that, The sealing ring (31) is a ring structure with a Y-shaped longitudinal section, and the sealing pressure ring (32) is a ring block structure that is adapted to and abuts against the Y-shaped opening end of the sealing ring (31).

5. The gas meter housing sealing structure according to claim 2, characterized in that, The battery filling area (12) is provided with a battery filling hole (121). The battery filling hole (121) is a groove-shaped structure with a wire through hole (123) on the side wall. The wire through hole (123) connects the battery filling hole (121) and the interior of the lower casing (5) of the gas meter.

6. The gas meter housing sealing structure according to claim 2, characterized in that, The lower casing (5) of the gas meter is equipped with a circuit board (51) and a drying packaging box (53). Multiple first snap-fit ​​blocks (52) are wound around the side wall of the lower casing (5). The circuit board (51) is connected to a sensor for detecting the humidity inside the gas meter. The drying packaging box (53) is detachably equipped with a drying bag for adsorbing moisture inside the gas meter.

7. The gas meter housing sealing structure according to claim 6, characterized in that, The dry packaging filling box (53) includes a dry packaging filling box body (531) and a dry packaging filling box cover (532). The dry packaging filling box body (531) is installed on the inner wall of the lower shell (5) of the gas meter. The top of the dry packaging filling box body (531) is open, and the top side wall is hinged to one side of the dry packaging filling box cover (532). Multiple through holes are provided on the side wall of the dry packaging filling box body (531) and / or on the dry packaging filling box cover (532).

8. The gas meter housing sealing structure according to claim 6, characterized in that, The gas meter cover (1) has a plurality of first snap-fit ​​holes (13) on its side wall, and the plurality of first snap-fit ​​holes (13) correspond one-to-one with the plurality of first snap-fit ​​blocks (52) in a detachable snap-fit ​​manner. The gas display area (11) is provided with a sensing area (111) and a digital display area (112). A transparent resin sheet (14) is provided between the inner wall of the gas display area (11) and the circuit board (51). Both the sensing area (111) and the digital display area (112) are through holes. The transparent resin sheet (14) covers the sensing area (111) and the digital display area (112) and is sealed to the inner wall of the gas display area (11).

9. The gas meter housing sealing structure according to claim 1, characterized in that, The locking mechanism (4) includes a first locking housing (41) and a second locking housing (42). The first locking housing (41) of the plurality of locking mechanisms (4) is arranged around the circumference of the lower housing (5) of the gas meter, and the second locking housing (42) of the plurality of locking mechanisms (4) is arranged around the side wall of the upper cover (1) of the gas meter. Both the first locking housing (41) and the second locking housing (42) are provided with axial through holes for screw locking.

10. The gas meter housing sealing structure according to claim 1, characterized in that, The fixing mechanism (6) includes a fixing post (61), a fixing rubber ring (62), and a limiting block (63). The limiting block (63) is located inside the lower shell (5) of the gas meter. The fixing rubber ring (62) is an annular column structure. The bottom end of the fixing rubber ring (62) is fixedly connected to the limiting block (63). The fixing post (61) is vertically arranged on the inner wall of the upper cover (1) of the gas meter and is interference-fitted with the fixing rubber ring (62).

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