Multiple waterproof structure of water meter sealing cover

Abstract

The utility model relates to the field of water meter protection and sealing, in particular to a multiple waterproof structure of a water meter sealing cover, which comprises a base and a sealing cover, a sealing ring is arranged between the base and the sealing cover, an annular glue filling groove is formed between the base and the cover wall of the sealing cover, and the glue filling groove is used for filling sealant; according to the utility model, the multiple waterproof effect is achieved by utilizing the sealing ring and filling glue into the glue filling groove, the flowability of the sealant is not influenced by the arranged glue filling groove, the whole glue filling groove can be filled with the sealant through a glue filling process which is simpler to operate, the consistency is improved, the stress at the joint of the sealing cover and the base is ensured to be uniform, and the service life of the sealing cover is prolonged. According to the water meter, gaps among the base, the sealing cover and the sealing ring can be avoided to a certain extent, even if the gaps are formed among the sealing cover, the base and the sealing ring, the sealing glue layer filled in the glue filling groove can play a waterproof sealing role, and the sealing performance of the water meter is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of water meter protection and sealing, specifically providing a multi-layer waterproof structure for a water meter sealing cover. Background Technology

[0002] Smart water meters are a new type of water meter that uses modern microelectronics, sensing, and smart IC card technology to measure water consumption and transmit water data for settlement transactions. To prevent water from entering the internal circuit components during use, smart water meters employ various waterproofing solutions, the most common being a sealed cover design. This design involves placing a sealing ring between the meter base and the sealed cover, then applying adhesive to the contact surface between the sealed cover and the base, using the adhesive and the sealing ring to ensure waterproofing. While this sealing method is relatively quick to produce, it also presents the following problems: 1. The gap between the sealing cover and the base is very small, and the adhesive has poor flowability, leading to a difficult adhesive application process, low yield, and high operator skill requirements; 2. The uniformity of adhesive application on the contact surface is also affected by structural stress. Uneven application, under harsh environments such as high or low temperatures, pressure differences between the inside and outside can create gaps at the contact surface, causing sealing failure. This waterproofing design becomes even more problematic after prolonged use, as the adhesive in the sealing ring ages. Utility Model Content

[0003] To address the aforementioned issues, a novel waterproof structure for water meter sealing covers is proposed to ensure their waterproof performance.

[0004] The technical solution of this utility model is as follows:

[0005] A multi-layer waterproof structure for a water meter sealing cover includes a base and a sealing cover. A sealing ring is provided between the base and the sealing cover, and an annular glue-filling groove is formed between the base and the wall of the sealing cover. The glue-filling groove is used to fill sealant.

[0006] This solution utilizes a sealing ring and glue filling in a filling tank to achieve multiple waterproofing effects. The filling tank does not affect the fluidity of the sealant and allows for a simpler filling process, ensuring the sealant fills the entire tank, improving consistency, and guaranteeing uniform stress at the connection between the sealing cover and the base. This can prevent gaps between the base, sealing cover, and sealing ring to a certain extent. Even if gaps do occur between the sealing cover, base, and sealing ring, the sealant layer formed in the filling tank can still provide a waterproof seal, ensuring the water meter's airtightness.

[0007] Preferably, the base is provided with a connecting ring, the sealing cover is provided with a mounting groove adapted to the shape of the connecting ring, the connecting ring is disposed in the mounting groove, and an annular groove is provided on the contact surface between the connecting ring and the bottom of the mounting groove, and the sealing ring is disposed in the annular groove.

[0008] In this design, an annular groove is provided on the connecting ring to accommodate the sealing ring. This groove can position the sealing ring to a certain extent, preventing it from shifting before the base and sealing cover are fixed, thus avoiding any impact on the sealing effect. Furthermore, the annular groove is located on the contact surface between the connecting ring and the bottom of the mounting groove, i.e., on the horizontal contact surface between the base and the sealing cover. Compared to the existing technology where the sealing ring is placed on the side wall of the base / sealing cover, this design allows the sealing ring to eliminate the gap between the base and the sealing cover once they are in contact. It eliminates the need to consider dimensional errors during the production of the sealing cover and the base, thus achieving excellent sealing performance.

[0009] Preferably, the ring wall of the connecting ring, the groove wall of the mounting groove, and the bottom of the mounting groove form the glue-filling groove.

[0010] In this design, the depth of the injection tank is formed by the ring wall of the connecting ring and the groove wall of the mounting groove, perpendicular to the mounting surface of the sealing ring. This allows for better fixation of the positioning base and the sealing cover, effectively preventing gaps from forming on the mounting surface of the sealing ring. Furthermore, the gap between the ring wall of the connecting ring and the groove wall of the mounting groove allows for a certain degree of error during the installation of the base and the sealing cover. Simultaneously, after the sealant is injected into the injection tank, it concentrates within the tank and does not enter the interior of the sealing cover. The sealing cup and the sealing ring also prevent any impact on the sealing performance of the sealing ring. In other words, the injection tank and the sealing ring form a double waterproof structure.

[0011] To ensure a proper seal, the mounting surface of the sealing ring must be free of gaps before applying the adhesive. Therefore, preferably, the inner wall of the sealing cover and the base are detachably connected via a locking unit. In this design, a locking unit is added to the sealing ring and the adhesive filling groove. This unit connects the sealing cover to the base, ensuring that the sealing cover and base can be positioned briefly before adhesive application, guaranteeing that there are no gaps on the mounting surface of the sealing ring during the adhesive application and solidification process.

[0012] Preferably, the locking unit includes a first locking part disposed on the inner wall of the sealing cover and a second locking part disposed on the side wall of the base, wherein the first locking part and the second locking part mutually limit each other. In this design, the sealing cover and the base are directly in contact and installed. By providing the first locking part and the second locking part on the side walls of both, the sealing cover and the base are prevented from moving away from each other, avoiding gaps in the sealing ring mounting surface caused by internal and external pressure, thereby ensuring good sealing performance of the sealing ring.

[0013] Preferably, the first locking part is a locking tooth and the second locking part is a locking groove; or, the first locking part is a locking groove and the second locking part is a locking tooth; or, the first locking part is a locking tooth and the second locking part is a locking tooth.

[0014] In this design, the sealing cover and the base are rotated to make the first and second locking parts overlap and engage, which can prevent the sealing cover and the base from moving away from each other, making the installation and connection of the sealing cover and the base more convenient.

[0015] Preferably, the contact surfaces of the first and second locking parts are arc-shaped, so that the base and the sealing cover abut against each other when the sealing cover is connected to the base. In this solution, since the first and second locking parts achieve the limiting structure through rotation, and the contact surfaces of the two locking parts are arc-shaped, the first and second locking parts can generate a force that presses the base and the mounting seat together during the locking process, thereby pressing the sealing ring tightly against the base and the mounting cover.

[0016] Preferably, multiple sets of locking units are provided between the inner wall of the sealing cover and the base.

[0017] Preferably, a stop is provided at one end of the first locking part and / or the second locking part to prevent the first locking part and the second locking part from rotating excessively and failing to lock during the rotation locking process.

[0018] Preferably, the outer wall of the sealing cover is provided with a circumferential array of rotating grooves around the central axis of the sealing cover.

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, a double waterproofing effect is achieved by using a sealing ring and filling the glue in the glue filling groove. The glue filling groove does not affect the flowability of the sealant and allows the sealant to fill the entire glue filling groove through a simpler glue filling process, improving consistency and ensuring uniform stress at the connection between the sealing cover and the base. This can prevent gaps between the base, sealing cover, and sealing ring to a certain extent. Even if gaps occur between the sealing cover, base, and sealing ring, the sealant layer formed in the glue filling groove can still play a waterproof sealing role, ensuring the water meter's sealing performance.

[0021] 2. An additional locking unit is added to form a triple waterproof structure with the sealing ring and the glue-filling groove. The locking unit allows for faster installation of the base and sealing cover, while also preventing the sealing cover from moving away from the base, thus avoiding gaps on the sealing ring mounting surface caused by internal and external pressure, and ensuring good sealing performance of the sealing ring. Attached Figure Description

[0022] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a three-dimensional schematic diagram of the base of this utility model;

[0026] Figure 4 This is a three-dimensional schematic diagram of the sealing cover of this utility model.

[0027] In the above figures, the corresponding reference numerals are as follows:

[0028] 1-Base, 101-Connecting ring, 102-Annular groove, 2-Sealing cover, 201-Mounting groove, 202-Rotating groove, 3-Sealing ring, 4-Glue potting groove, 5-Positioning unit, 501-First positioning part, 502-Second positioning part, 503-Stop block. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings and through specific implementation methods of the embodiments of the present invention.

[0030] Example 1:

[0031] like Figure 1 The diagram illustrates a multi-layered waterproof structure for a water meter sealing cover, comprising a base 1 and a sealing cover 2. A sealing ring 3 is positioned between the base 1 and the sealing cover 2. A glue-filling groove 4 is located between the base 1 and the wall of the sealing cover 2, and the groove 4 is used to fill with sealant. The sealing ring 3 surrounds the area on the base 1 where other components are installed, creating a hollow area inside the sealing cover 2, thus providing a first layer of waterproofing. The glue-filling groove 4 surrounds the sealing ring 3 with a specific groove spacing, ensuring that the flowability of the sealant is not affected, improving consistency, and allowing the sealant to fill the entire groove 4. After the sealant solidifies, it fixes and positions the base 1, forming a second layer of waterproofing.

[0032] Specifically, such as Figure 2As shown, a connecting ring 101 is provided on the base 1, and a mounting groove 201 adapted to the shape of the connecting ring 101 is provided on the sealing cover 2. The connecting ring 101 is disposed in the mounting groove 201. An annular groove 102 is provided on the contact surface between the connecting ring 101 and the bottom of the mounting groove 201. The groove shape of the annular groove 102 is adapted to the sealing ring 3, and the first sealer is directly placed in the annular groove 102. This prevents the sealing ring 3 from shifting before the base 1 and the sealing cover 2 are fixed, which would affect the sealing effect of the sealing ring. Meanwhile, as... Figure 2 As shown, the ring wall of the connecting ring 101, the groove wall of the mounting groove 201, and the bottom of the mounting groove 201 form the potting groove 4. That is, the maximum outer diameter of the connecting ring 101 on the base 1 is smaller than the minimum groove diameter of the mounting groove 201, creating a certain gap between the ring wall of the connecting ring 101 and the groove wall of the mounting groove 201. The depth of the potting groove 4 is formed by the ring wall of the connecting ring 101 and the groove wall of the mounting groove 201, and is perpendicular to the mounting surface of the sealing ring 3. This allows for better fixation and positioning of the base 1 and the sealing cover 2, effectively preventing gaps from forming on the mounting surface of the sealing ring 3. Furthermore, the gap between the ring wall of the connecting ring 101 and the groove wall support of the mounting groove 201 also allows for a certain degree of error during the installation of the base 1 and the sealing cover 2.

[0033] It should be noted that the depth of the mounting groove 201 can be greater than the height of the connecting ring 101. After the base 1 and the sealing cover 2 are connected and installed, when the glue is poured into the glue-filling groove 4, the sealant can fill the entire mounting groove 201.

[0034] Example 2:

[0035] Before applying the adhesive, it is necessary to ensure that there are no gaps on the mounting surface of the sealing ring 3 to guarantee its sealing effect. Therefore, as follows: Figure 3 and Figure 4 As shown, based on Embodiment 1, the inner wall of the sealing cover 2 and the base 1 are detachably connected by the locking unit 5.

[0036] Specifically, the locking unit 5 includes a first locking part 501 disposed on the inner wall of the sealing cover 2 and a second locking part 502 disposed on the side wall of the base 1, wherein the first locking part 501 and the second locking part 502 mutually limit each other. Multiple locking units 5 can be provided simultaneously to improve the stability of the connection. The sealing cover 2 and the base 1 are directly in contact. By providing the first locking part 501 and the second locking part 502 on their side walls, the sealing cover 2 and the base 1 can be prevented from moving away from each other, avoiding gaps in the mounting surface of the sealing ring 3 caused by internal and external pressure, thereby ensuring good sealing performance of the sealing ring 3. The structure of the first locking part 501 and the second locking part 502 includes, but is not limited to: the first locking part 501 being a locking tooth and the second locking part 502 being a locking groove; or the first locking part 501 being a locking groove and the second locking part 502 being a locking tooth; or the first locking part 501 being a locking tooth and the second locking part 502 being a locking tooth. The first locking part 501 and the second locking part 502, by rotating them to overlap and lock together, can prevent the sealing cover 2 from moving away from the base 1. For example... Figures 1 to 4 As shown, preferably, both the first locking part 501 and the second locking part 502 are protruding locking teeth. Since there is a certain gap between the ring wall of the connecting ring 101 and the groove wall of the mounting groove 201 in the first embodiment, the first locking part 501 and the second locking part 502 can be set in this gap.

[0037] Furthermore, the contact surfaces of the first locking part 501 and the second locking part 502 are arc surfaces, so that when the sealing cover 2 is connected to the base 1, the base 1 and the sealing cover 2 abut against each other. Since the first locking part 501 and the second locking part 502 achieve the limiting structure through rotation, and the contact surfaces of the two locking parts are arc surfaces, the first locking part 501 and the second locking part 502 can generate a force that makes the base 1 and the mounting seat abut against each other during the rotation locking process, thereby making the base 1 and the mounting cover press the sealing ring 3 tightly.

[0038] It should be noted that a stop 503 is provided at one end of the first locking part 501 and / or the second locking part 502. Since both the first locking part 501 and the second locking part 502 need to be aligned to achieve engagement, the stop 503 prevents excessive rotation of the first locking part 501 and the second locking part 502 during the rotational engagement process, thus preventing engagement failure. Only one of the first locking part 501 and the second locking part 502 needs a stop 503 to prevent excessive rotation. Figure 3 As shown, a stop 503 is provided only on the second locking part 502.

[0039] Furthermore, in order to better engage the rotating sealing cover 2, the first locking part 501 and the second locking part 502 between the sealing cover 2 and the base 1, such as... Figure 4As shown, a rotating groove 202 is provided on the outer wall of the sealing cover 2 that forms the mounting groove 201. The rotating grooves 202 are evenly arranged in a circumferential array on the outer wall of the sealing cover 2, which can provide a certain friction force when the sealing cover 2 is manually rotated, and can also provide a slot for the special fixture.

[0040] In this embodiment, the specific assembly steps of the multiple waterproof structure are as follows: First, place the connecting ring 101 of the base 1 upward, place the sealing ring 3 in the annular groove 102 of the base 1, cover the base 1 from top to bottom with the sealing cover 2, and let the connecting ring 101 be placed into the mounting groove 201. Then, by rotating the base 1 or the sealing cover 2, the locking unit 5 connects the base 1 and the sealing cover 2, that is, the first locking part 501 and the second locking part 502 overlap and lock each other. During this period, the base 1 and the sealing cover 2 press the sealing ring 3 tightly. Then, the base 1 and the sealing cover 2 are inverted, and sealant is poured into the glue filling groove 4. The sealant fills the entire glue filling groove 4. After the sealant solidifies, the triple waterproofing of the sealing cover 2 and the base 1 is completed.

[0041] Furthermore, the sealing cover 2 is provided with at least one threaded hole, and the base 1 is provided with an internally threaded post corresponding to the threaded hole of the sealing cover 2. Bolts can be used to connect the sealing cover 2 and the base 1, thereby completely limiting the position of the base 1 and the sealing cover 2 and ensuring the stability of the connection between the base 1 and the sealing cover 2.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A multi-layer waterproof structure for a water meter sealing cover, comprising a base (1) and a sealing cover (2), characterized in that: A sealing ring (3) is provided between the base (1) and the sealing cover (2), and an annular glue-filling groove (4) is formed between the base (1) and the wall of the sealing cover (2), and the glue-filling groove (4) is used to fill the sealant.

2. The multi-layer waterproof structure of a water meter sealing cover according to claim 1, characterized in that: A connecting ring (101) is provided on the base (1), and an mounting groove (201) adapted to the shape of the connecting ring (101) is provided on the sealing cover (2). The connecting ring (101) is disposed in the mounting groove (201). An annular groove (102) is provided on the contact surface between the connecting ring (101) and the bottom of the mounting groove (201). The sealing ring (3) is disposed in the annular groove (102).

3. The multi-layer waterproof structure of a water meter sealing cover according to claim 2, characterized in that: The ring wall of the connecting ring (101), the groove wall of the mounting groove (201), and the bottom of the mounting groove (201) form the glue-filling groove (4).

4. The multi-waterproof structure of a water meter sealing cover according to any one of claims 1 to 3, characterized in that: The inner wall of the sealing cover (2) is detachably connected to the base (1) via a locking unit (5).

5. The multi-layer waterproof structure of a water meter sealing cover according to claim 4, characterized in that: The locking unit (5) includes a first locking part (501) disposed on the inner wall of the sealing cover (2) and a second locking part (502) disposed on the side wall of the base (1), wherein the first locking part (501) and the second locking part (502) limit each other.

6. The multi-layer waterproof structure of a water meter sealing cover according to claim 5, characterized in that: The first locking part (501) is a locking tooth, and the second locking part (502) is a locking groove; Alternatively, the first locking part (501) may be a locking groove, and the second locking part (502) may be a locking tooth; Alternatively, the first locking part (501) may be a locking tooth, and the second locking part (502) may be a locking tooth.

7. The multi-layer waterproof structure of a water meter sealing cover according to claim 6, characterized in that: The contact surfaces of the first locking part (501) and the second locking part (502) are arc surfaces, so that when the sealing cover (2) is connected to the base (1), the base (1) and the sealing cover (2) abut against each other.

8. The multi-layer waterproof structure of a water meter sealing cover according to claim 4, characterized in that: Multiple sets of locking units (5) are provided between the inner wall of the sealing cover (2) and the base (1).

9. The multi-layer waterproof structure of a water meter sealing cover according to claim 7, characterized in that: A stop (503) is provided at one end of the first locking part (501) and / or the second locking part (502).

10. The multi-layer waterproof structure of a water meter sealing cover according to claim 1, characterized in that: Rotation grooves (202) are arranged in a circular array around the central axis of the sealing cover (2) on the outer wall of the sealing cover (2).

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