CN213481432U - Intelligent water meter with high waterproof performance - Google Patents

Abstract

The utility model provides a high waterproof performance's intelligent water gauge, include: the box comprises a box body, a box cover, a first sealing ring and a circuit board; the box body includes: outer box and inner ring, be open-topped tubbiness structure at outer box, immediately have the inner ring in outer box, intra-annular including the circuit board installation, lid and outer box pass through the screw connection, and the lid inner wall compresses tightly first sealing washer between inner ring top surface and the lid inner wall. The intelligent water meter of high waterproof performance solves prior art and prevents that water from getting into and leading to the lower problem of waterproof performance from the gap between box body and the lid because of leaning on the casting glue.

Description

Intelligent water meter with high waterproof performance

Technical Field

The utility model relates to a water gauge, concretely relates to intelligent water gauge of high waterproof performance.

Background

Among the prior art, the water meter includes: the circuit board, box body and lid, be used for placing the circuit board in the box body, the lid is used for being equipped with the box body of circuit board sealed, make the circuit board airtight in box body and lid, in order to avoid water to get into and lead to the circuit board to be burnt out from the gap between box body and the lid, consequently adopt the pouring sealant embedment in the junction of lid and box body, but because use the contact department that the pouring sealant between lid and the box body after a period of time comes off easily, and lead to water still to have the risk that enters into the box body, lead to the lower problem of waterproof performance to exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high waterproof performance's intelligent water gauge solves prior art and prevents that water from getting into and leading to the lower problem of waterproof performance from the gap between box body and the lid because of leaning on the casting glue.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high waterproof performance's intelligent water gauge, include: the box comprises a box body, a box cover, a first sealing ring and a circuit board; the box body includes: outer box and inner ring, be open-topped tubbiness structure at outer box, immediately have the inner ring in outer box, intra-annular including the circuit board installation, lid and outer box pass through the screw connection, and the lid inner wall compresses tightly first sealing washer between inner ring top surface and the lid inner wall.

Preferably, the circuit board is connected with a wire for external electrical appliances, the box cover is provided with a through hole for the wire to penetrate through, the wire is surrounded by a second sealing ring, the outer wall of the box cover protrudes with a connecting ring, the connecting ring is in threaded connection with a threaded cover, the threaded cover compresses the second sealing ring on the outer wall of the box cover, the second sealing ring is surrounded outside the through hole, and the threaded cover is used for the wire to pass through.

Preferably, the box body and the box cover are buckled to form a box cavity, the box cover or the box body is provided with a detection hole, the box cavity is communicated with the detection hole, the detection hole is sealed by a sealing block, and the sealing block is made of elastic materials.

Preferably, the edge of one side of the sealing block protrudes to form a first convex ring, the edge of the other side of the sealing block protrudes to form a second convex ring, the inner wall of the box cover or the box body is sunken to form a first accommodating groove, the first accommodating groove surrounds the detection hole, the first accommodating groove is used for the first convex ring to be placed in, a pressing mechanism is installed beside the detection hole and used for pressing the edge of the sealing block on the box body or the box cover, and the second convex ring extends into the pressing mechanism.

Preferably, the pressing mechanism includes: the screw rod and the clamp ring are mounted on the inner wall of the box cover or the box body, the screw rod is connected with the screw rod in a threaded mode, the screw rod is fixed to the clamp ring, the clamp ring is used for pressing the sealing block onto the inner wall of the box cover or the box body, the end face of the clamp ring, which deviates from the screw rod, is sunken to form a second accommodating groove, and the second accommodating groove is used for the second convex ring to stretch into.

Compared with the prior art, the utility model discloses following beneficial effect has:

the inner ring divides the box body cavity into two spaces, one space is the inner cavity located in the inner ring, and the other space is the outer cavity located outside the inner ring, after the box body is connected with the box cover, the joint of the box body and the box cover is still sealed by pouring sealant, although the pouring sealant is damaged, the risk of entering the box cavity is still avoided, water can enter the outer cavity firstly, because the inner cavity is a closed space, and a first sealing ring is arranged between the inner ring and the inner wall of the box cover, the gap sealing between the inner ring and the box cover is better, the water is difficult to enter from the gap between the inner ring and the box cover, the sealing performance is improved, the high waterproof performance is achieved, the phenomenon that the circuit board is burnt down due to water immersion is reduced, and the protection of the circuit board is improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is an exploded view of an intelligent water meter with high water resistance;

fig. 2 is a sectional view of an intelligent water meter with high water resistance;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is an enlarged view of fig. 2 at the sealing block.

Reference numerals: the box body 1, the outer box 11, the inner ring 12, the box cover 2, the connecting ring 20, the thread bush 21, the sealing block 3, the first convex ring 31, the second convex ring 32, the circuit board 4, the pressing mechanism 5, the screw 51, the pressing ring 52, the indicator lamp 6, the switch mechanism 7, the conducting strip 71, the positive plate 72, the negative plate 73, the contact rod 74, the spring 75, the 5v power supply 8, the lead 9, the second sealing ring 90, the thread cover 91 and the first sealing ring 10.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 and fig. 2, the utility model provides an intelligent water meter of high waterproof performance, include: the box comprises a box body 1, a box cover 2, a first sealing ring 10 and a circuit board 4; the cartridge 1 includes: outer box 11 and inner ring 12, the box 11 is open-topped tubbiness structure outside, outer box 11 is internal to have inner ring 12, circuit board 4 installs in inner ring 12, lid 2 passes through the screw connection with outer box 11, lid 2 inner wall compresses tightly first sealing washer 10 between inner ring 12 top surface and lid 2 inner wall.

As shown in fig. 2 and 3, a lead 9 for an external electrical appliance is connected to the circuit board 4, a through hole through which the lead 9 passes is formed in the box cover 2, a second sealing ring 90 surrounds the lead 9, a connection ring 20 protrudes from the outer wall of the box cover 2, a threaded cover 91 is connected to the connection ring 20 in a threaded manner, the second sealing ring 90 is pressed against the outer wall of the box cover 2 by the threaded cover 91, the second sealing ring 90 surrounds the through hole, and the lead 9 passes through the threaded cover 91. Because in order to realize the electric connection between the whole water meter and the external electric appliance, the wire 9 is required to penetrate out of the box body 1 or the box cover 2 after being connected with the circuit board 4, the second sealing ring 90 is designed, the second sealing ring 90 is tightly pressed outside the through hole by the threaded cover 91, the second sealing ring 90 is hot-melted with the outer layer glue of the wire 9, no gap exists between the second sealing ring 90 and the wire 9, the second sealing ring 90 is required to be tightly pressed on the box cover 2, the water can be prevented from entering from the gap between the second sealing ring 90 and the box cover 2, the through hole is covered by the second sealing ring 90, the waterproof performance is improved, the threaded cover 91 is deformed by pressing the second sealing ring 90, and the water is prevented from entering from the gap between the second sealing ring 90 and the box cover 2.

As shown in fig. 2 and 4, a box cavity is formed after the box body 1 and the box cover 2 are buckled, a detection hole is formed in the box cover 2 or the box body 1 and communicates the box cavity, the detection hole is sealed by a sealing block 3, and the sealing block 3 is made of an elastic material.

In order to simplify the sealing operation step, 3 one side edge projections of sealed piece are formed with first bulge loop 31, 3 another side edge projections of sealed piece are formed with second bulge loop 32, the sunken first holding tank that forms of lid 2 or 1 inner wall of box body, first holding tank encircles outside the inspection hole, first holding tank supplies first bulge loop 31 to put into, install hold-down mechanism 5 by the inspection hole, hold-down mechanism 5 is used for compressing tightly 3 edges of sealed piece on box body 1 or lid 2 of place, second bulge loop 32 stretches into to hold-down mechanism 5 in. Elastic sealing block 3 is arranged through the setting, the whole sealing box is placed in a negative pressure environment, the atmospheric pressure is still in a box cavity, the pressure difference is formed on two sides of the sealing block 3, whether the sealing block 3 is protruded or not only needs to be observed, whether the whole sealing box is sealed or not can be judged, if the sealing block 3 is not sealed, the operation trouble caused by the fact that the detection hole is sealed subsequently is avoided, the problem that the sealing effect of the detection hole cannot be determined due to the subsequent sealing detection hole is also avoided, the outgoing quality of the product is guaranteed, and the market competitiveness is improved.

In order to avoid the separation of the edge of the sealing block 3 from the box cover 2 or the box body 1, the edge of one side of the sealing block 3 protrudes to form a first convex ring 31, the edge of the other side of the sealing block 3 protrudes to form a second convex ring 32, the inner wall of the box cover 2 or the box body 1 is sunken to form a first accommodating groove, the first accommodating groove surrounds the detection hole, the first accommodating groove is used for placing the first convex ring 31, a pressing mechanism 5 is installed beside the detection hole, the pressing mechanism 5 is used for pressing the edge of the sealing block 3 onto the box body 1 or the box cover 2, and the second convex ring extends into the pressing mechanism 5. Because the sealing block 3 is not separated from the box cover 2 or the box body 1 by the adhesive force of the sealant when the sealing block 3 seals the detection hole only by the sealant and the like, the adhesive force is limited and is easy to fall off, and the design is made in order to avoid falling off. If the sealing block 3 needs to move relative to the box cover 2 and the box body 1, the first projection is required to go beyond the first accommodating groove, and the sealing block 3 must not jump, so that the sealing block 3 cannot slide relative to the box cover 2 and the box body 1. Meanwhile, if the sealing block 3 needs to slide relative to the pressing mechanism 5, the second convex ring needs to jump out of the pressing mechanism 5, which is not necessarily the case. The design of above-mentioned structure, in addition, adopt sealed glue sealed between sealed piece 3 and place lid 2 or the box body 1, the phenomenon that the inspection hole was opened to sealed piece 3 in-process such as detection just so can not appear, has improved the adhesive force of sealed piece 3 with place lid 2 and box body 1.

In order to design the pressing mechanism 5 with a simple structure, the pressing mechanism 5 includes: screw rod 51 and clamp ring 52 install thread bush 21 on lid 2 or box body 1 inner wall, and thread bush 21 threaded connection has screw rod 51, and screw rod 51 is fixed to clamp ring 52, and clamp ring 52 is used for compressing tightly sealed piece 3 on lid 2 or box body 1 inner wall of place, and clamp ring 52 deviates from the sunken second holding tank that forms of terminal surface of screw rod 51, and the second holding tank supplies second bulge loop 32 to stretch into.

Since it is very difficult to observe whether the sealing block 3 is protruded, the following design is made for the convenience of observation: an indicator lamp 6, a switch mechanism 7 and a 5v power supply 8 are installed on the pressing mechanism 5, the cathode of the indicator lamp 6 is grounded, the anode of the indicator lamp 6 is connected with the 5v power supply 8 through the switch mechanism 7, the switch mechanism 7 is tightly attached to the sealing block 3, when the sealing block 3 is protruded to the side back from the box cavity, the switch mechanism 7 is closed, and the sealing block 3 is made of a light-transmitting material (the sealing block 3 is made of a rubber material which has elasticity and light-transmitting performance).

In order to design the switching mechanism 7 with a simple structure, the switching mechanism 7 includes: conducting strip 71, positive plate 72, negative pole piece 73, contact rod 74 and, conducting strip 71, positive plate 72 and negative pole piece 73 all adopt conducting material to make, conducting strip 71 can move in the direction of keeping away from and being close to sealed piece 3 under the direction of screw 51, install positive plate 72 and negative pole piece 73 at mutual interval on conducting strip 71 is close to sealed piece 3 one side, negative pole piece 73 is connected to pilot lamp 6 positive pole, positive plate 72 is connected to 5v power 8, conducting strip 71 is fixed to contact rod 74 one end, the contact rod 74 other end hugs closely with sealed piece 3, conducting strip 71 electrically connects positive plate 72 and negative pole piece 73 to connect when sealed piece 3 is protruding to the box chamber of keeping away from, install spring 75 in conducting strip 71 department, can keep trigger bar to deviate from conducting strip 71 one end to hug closely with sealed piece 3 all the time under spring 75 elasticity. When the whole sealing box is placed in a negative pressure space, because the pressure in the sealing box is high, the sealing block 3 tends to protrude out of the box cover 2, under the elastic force of the spring 75, the conducting plate 71 is tightly attached to the positive plate 72 and the negative plate 73, the indicator lamp 6 is electrically connected, the indicator lamp 6 is bright, the indicator lamp 6 emits some light rays through the sealing block 3, the fact that the pressure in the sealing box is high is prompted, and the quality of the sealing box meets requirements. When the pressure inside the sealing case is not detected, the pressure inside the sealing case is almost the same as the pressure outside the sealing case, and the elastic force of the spring 75 is small, so that the sealing block 3 does not protrude outward so much by the trigger lever.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (5)

1. An intelligent water gauge of high waterproof performance, its characterized in that includes: the box comprises a box body, a box cover, a first sealing ring and a circuit board; the box body includes: outer box and inner ring, be open-topped tubbiness structure at outer box, immediately have the inner ring in outer box, intra-annular including the circuit board installation, lid and outer box pass through the screw connection, and the lid inner wall compresses tightly first sealing washer between inner ring top surface and the lid inner wall.

2. An intelligent water meter with high waterproof performance as claimed in claim 1, wherein the circuit board is connected with a lead for external electrical appliances, the box cover is provided with a through hole for the lead to pass through, a second sealing ring is wound on the lead, a connecting ring protrudes from the outer wall of the box cover, a threaded cover is screwed on the connecting ring, the second sealing ring is pressed on the outer wall of the box cover by the threaded cover, the second sealing ring is wound outside the through hole, and the lead passes through the threaded cover.

3. The intelligent water meter with high water resistance as claimed in claim 2, wherein the box body is fastened to the box cover to form a box cavity, the box cover or the box body is provided with a detection hole, the detection hole communicates with the box cavity, the detection hole is sealed by a sealing block, and the sealing block is made of elastic material.

4. An intelligent water meter with high waterproof performance as claimed in claim 3, wherein a first convex ring is formed on one side edge of the sealing block in a protruding manner, a second convex ring is formed on the other side edge of the sealing block in a protruding manner, a first accommodating groove is formed on the inner wall of the box cover or the box body in a recessed manner, the first accommodating groove surrounds the detection hole, the first convex ring is arranged in the first accommodating groove, a pressing mechanism is arranged beside the detection hole, the pressing mechanism is used for pressing the edge of the sealing block on the box body or the box cover, and the second convex ring extends into the pressing mechanism.

5. A water meter as set forth in claim 4, wherein said pressing mechanism comprises: the screw rod and the clamp ring are mounted on the inner wall of the box cover or the box body, the screw rod is connected with the screw rod in a threaded mode, the screw rod is fixed to the clamp ring, the clamp ring is used for pressing the sealing block onto the inner wall of the box cover or the box body, the end face of the clamp ring, which deviates from the screw rod, is sunken to form a second accommodating groove, and the second accommodating groove is used for the second convex ring to stretch into.

Images