An ultrasonic intelligent water meter and a method for using the same

Abstract

The application provides an ultrasonic intelligent water meter and a use method thereof, and belongs to the technical field of intelligent water meters. The ultrasonic intelligent water meter comprises a valve box, a valve body fixedly connected to the lower inner wall of the valve box, an intelligent water meter device arranged on the lower inner wall of the valve box, and a fixing mechanism. The fixing mechanism comprises a clamping groove box fixedly connected to one side end of the valve box, a baffle fixedly connected to one side inner wall of the clamping groove box, a first placing groove opened in one side end of the baffle, and a power connection head fixedly connected to the lower inner wall of the first placing groove. The application can replace the lithium battery without disassembly, is more convenient, and can protect the intelligent water meter device by increasing the protective shell according to the situation when the valve box is damp after long-time use. The moisture-proof sheet arranged in the upper cover seat can prevent the display device from being damp and waterproof.

Description

Technical Field

[0001] This invention belongs to the field of smart water meter technology, specifically relating to an ultrasonic smart water meter and its usage method. Background Technology

[0002] Ultrasonic water meters are a new type of water meter that calculates water flow rate by analyzing the time difference caused by the change in speed of an ultrasonic beam as it propagates upstream and downstream in water. Their features include: low starting velocity, wide measuring range, high measurement accuracy, stable operation, no internal moving parts or flow obstructions, unaffected by impurities in the water, and long service life. They offer comprehensive communication outputs, meeting various communication and wireless networking requirements, and possess excellent low-flow detection capabilities. They solve many problems associated with traditional water meters, making them more suitable for tiered water pricing and promoting water conservation and rational utilization, thus possessing broad market and application prospects.

[0003] In the existing technology, most water meters are powered by lithium batteries. When replacing them after a long period of use, disassembly is not convenient, and prolonged use can easily cause the equipment to get damp, affecting its service life. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasonic smart water meter and its usage method, which aims to solve the problems of most existing water meters using lithium batteries for power generation, which are inconvenient to replace after long-term use due to disassembly, and are prone to moisture damage during long-term use, affecting their service life.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An ultrasonic smart water meter includes:

[0007] Valve box;

[0008] The valve body is fixedly connected to the lower inner wall of the valve box;

[0009] The smart water meter device is installed on the lower inner wall of the valve box;

[0010] The fixing mechanism includes:

[0011] A card slot box is fixedly connected to one side of the valve box;

[0012] A baffle is fixedly connected to the inner wall of one side of the card slot box;

[0013] The first placement slot is formed on one side of the baffle;

[0014] The power connector is fixedly connected to the lower inner wall of the first placement slot;

[0015] Two sliding blocks are fixedly connected to the inner walls of the two sides of the card slot box, respectively;

[0016] Two fourth rectangular grooves are formed at the upper ends of the two sliding blocks;

[0017] Two third rectangular sliders are slidably connected to the two fourth rectangular grooves, respectively;

[0018] The placement box is fixedly connected to one side of the two third rectangular sliders;

[0019] Two limiting slots are provided at the upper end of the placement box;

[0020] A lithium battery is disposed within the placement box;

[0021] A power connector, which is fitted to one end of the power connector;

[0022] Two cards are snapped into the two limiting card slots;

[0023] A card plate is fixedly connected to the upper ends of the two cards;

[0024] Two second placement slots are respectively opened on one inner wall of the two fourth rectangular sliding grooves;

[0025] Two third springs are respectively fixedly connected to the inner wall of one side of the two second placement slots;

[0026] Two locking blocks are respectively fixedly connected to one end of the two third springs; and

[0027] Two connecting rods are fixedly connected to one side of the two locking blocks, and the two connecting rods are slidably connected in the two first sliding grooves.

[0028] In a preferred embodiment of the present invention, a connecting box is fixedly connected to one side of the card slot box, a second telescopic rod is fixedly connected to the lower inner wall of the connecting box, a second spring is sleeved on the circumferential surface of the second telescopic rod, a backing plate is fixedly connected to the upper end of the second telescopic rod, a second rectangular sliding block is fixedly connected to one side of the connecting box, a second rectangular sliding groove is opened on one side of the connecting box, the second rectangular sliding block is slidably connected in the second rectangular sliding groove, sliding pieces are slidably connected in both of the third rectangular sliding grooves, one end of each of the two connecting rods is fixedly connected to one end of the sliding piece, a pressing block is fixedly connected to the upper end of the backing plate, and a protrusion groove is opened at the upper end of the connecting box, the pressing block is slidably connected in the protrusion groove.

[0029] In a preferred embodiment of the present invention, fixed slides are fixedly connected to both sides of the valve box, and a first rectangular slide groove is opened at the upper end of each of the two fixed slides. A first rectangular slide block is slidably connected in each of the two first rectangular slide grooves, and an L-shaped locking block is fixedly connected to the lower end of each of the two first rectangular slide blocks. A first telescopic rod is fixedly connected to both sides of the valve box, and a first spring is sleeved on the circumferential surface of each of the two first telescopic rods. A protective shell is fixedly connected to the lower inner wall of the valve box.

[0030] In a preferred embodiment of the present invention, the upper end of the valve box is fixedly connected to an upper cover seat by bolts, one side of the upper cover seat is movably hinged to a shell cover by a hinge shaft, one side of the shell cover is fixedly connected to a connecting piece, one side of the connecting piece is fixedly connected to a second magnetic piece, the upper inner wall of the shell cover is fixedly connected to a moisture-proof sheet, and one side of the valve box is provided with a first fixing groove, in which a first magnetic piece is fixedly connected.

[0031] As a preferred embodiment of the present invention, a third connector is fixedly connected to the circumferential surface of the valve body, and a threaded rod is fixedly connected inside the third connector by a thread. Two second ribs are fixedly connected to the circumferential surface of the third connector.

[0032] In a preferred embodiment of the present invention, one end of the valve body is fixedly connected to a guide tube by bolts, and an upper retaining ring is sleeved on the circumferential surface of the guide tube. The lower end of the upper retaining ring is movably hinged to a lower retaining ring by a hinge shaft.

[0033] As a preferred embodiment of the present invention, a lower protective seat is fitted on the circumferential surface of the valve body, and a moisture-proof outer shell is fixedly connected to the upper end of the lower protective seat by bolts.

[0034] As a preferred embodiment of the present invention, an anti-slip shell is fixedly connected to the surface of the moisture-proof shell.

[0035] As a preferred embodiment of the present invention, the circumferential surfaces of the conduit and the valve body are both fitted with support frames, and the two ends of the two support frames are fixedly connected with first ribs.

[0036] A method for using an ultrasonic smart water meter includes the following steps:

[0037] S1. When replacing the lithium battery, the sliding plate can be moved by pressing the pressing block, thereby moving the locking block. After unplugging the power connector, the placement box can be taken out. After replacement, the card is inserted into the limiting slot, and then the placement box is fixed by sliding it between the sliding blocks.

[0038] S2. When fixing the protective casing, the L-shaped locking block can be moved by moving the two first rectangular sliding blocks, and then the protective casing can be covered to cover the smart water meter device. Then, it can be released. Under the elastic force of the first spring, the L-shaped locking block will lock the protective casing.

[0039] S3. After using the display device, the cover can be flipped to the side of the valve box, allowing the second magnetic sheet to be attracted to the first magnetic sheet, thereby protecting the display device. The moisture-proof sheet under the cover can waterproof and prevent moisture from entering the surface of the display device.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] 1. By setting the device inside the housing, the lithium battery can be secured, which increases the safety of the lithium battery during use. After the sliding block is slid in, the locking block is driven by the elastic force of the third spring to lock into the grooves on both sides of the third rectangular slider.

[0042] 2. By pulling the first rectangular sliding block inside the valve box, the protective shell is fitted onto the smart water meter device. Then, the first rectangular sliding block is released, and the L-shaped locking block, under the elastic force of the first spring, moves the L-shaped locking block to press against the protective shell, thereby achieving a fixing effect.

[0043] 3. The second magnetic sheet is attracted to the first magnetic sheet by the cover set on the upper cover, thereby protecting the display device. The moisture-proof sheet set inside the cover can provide moisture-proof and waterproof effects for the display device. Attached Figure Description

[0044] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0045] Figure 1 This is a perspective view of the present invention;

[0046] Figure 2 This is an exploded view of the present invention;

[0047] Figure 3 For the present invention Figure 2 A sectional view of the middle valve body;

[0048] Figure 4 This is a partial exploded view of the card slot box of the present invention;

[0049] Figure 5 For the present invention Figure 4 Enlarged view of the middle sliding block;

[0050] Figure 6 This is a partial exploded view of the connecting box of the present invention;

[0051] Figure 7 For the present invention Figure 6 Enlarged view of the connecting box;

[0052] Figure 8 This is a partial exploded view of the upper cover of the present invention;

[0053] Figure 9 This is a partial exploded view of the valve box of the present invention;

[0054] Figure 10 This is a partial exploded view of the fixed slide of the present invention;

[0055] Figure 11 This is a partial exploded view of the third connector in this invention.

[0056] In the diagram: 1. Conduit; 2. Lower retaining ring; 3. Upper retaining ring; 4. Lower protective seat; 5. Anti-slip outer shell; 6. First rib; 7. Moisture-proof outer shell; 801. Valve box; 802. Fixed slide; 803. First rectangular slide groove; 804. L-shaped locking block; 805. First rectangular sliding block; 806. First telescopic rod; 807. First spring; 808. Protective shell; 9. Valve body; 10. First magnetic plate; 11. First fixed groove; 1201. Connecting box; 1202. Abutting plate; 1203. Sliding plate; 1204. Second rectangular sliding block; 1205. Pressing block; 1206. Second spring; 1207. Second telescopic rod; 1208. Second rectangular slide groove; 1209. Extension groove; 1301. Locking box; 1302. Third rectangular slide groove; 303, Card plate; 1304, Card; 1305, Placement box; 1306, Third rectangular slider; 1307, Limiting slot; 1308, Baffle; 1309, First placement slot; 1310, Power connector; 1311, Sliding block; 1312, First sliding groove; 1313, Fourth rectangular sliding groove; 1314, Lithium battery; 1315, Power connector; 1316, Connecting rod; 1317, Positioning block; 1318, Third spring; 1319, Second placement slot; 1401, Top cover seat; 1402, Moisture-proof sheet; 1403, Shell cover; 1404, Connecting piece; 1405, Second magnetic piece; 15, Smart water meter device; 1601, Third connector; 1602, Second rib; 1603, Threaded bracket; 17, Support frame. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] Example 1

[0059] Please see Figures 1-11 The present invention provides the following technical solutions:

[0060] An ultrasonic smart water meter includes:

[0061] Valve box 801;

[0062] Valve body 9 is fixedly connected to the lower inner wall of valve box 801;

[0063] The smart water meter device 15 is installed on the lower inner wall of the valve box 801;

[0064] Fixed mechanism, the fixed mechanism includes:

[0065] Card slot box 1301 is fixedly connected to one side of valve box 801;

[0066] Baffle 1308 is fixedly connected to the inner wall of one side of the card slot box 1301;

[0067] The first placement slot 1309 is opened on one side of the baffle 1308;

[0068] The power connector 1310 is fixedly connected to the lower inner wall of the first placement slot 1309;

[0069] Two sliding blocks 1311 are fixedly connected to the inner walls of the two sides of the card slot box 1301, respectively;

[0070] Two fourth rectangular grooves 1313 are provided at the upper ends of the two sliding blocks 1311;

[0071] Two third rectangular sliders 1306 are slidably connected to two fourth rectangular grooves 1313 respectively;

[0072] The placement box 1305 is fixedly connected to one side of the two third rectangular sliders 1306;

[0073] Two limiting slots 1307 are provided at the top of the placement box 1305;

[0074] The lithium battery 1314 is placed inside the housing 1305;

[0075] Power connector 1315 is fitted to one end of power connector 1310;

[0076] Two cards 1304 are connected to two limiting card slots 1307;

[0077] Card plate 1303 is fixedly connected to the upper end of two cards 1304;

[0078] Two second placement slots 1319 are respectively opened on one inner wall of two fourth rectangular slides 1313;

[0079] Two third springs 1318 are respectively fixedly connected to the inner wall of one side of the two second placement slots 1319;

[0080] Two locking blocks 1317 are respectively fixedly connected to one end of two third springs 1318; and

[0081] Two connecting rods 1316 are fixedly connected to one side of two locking blocks 1317 respectively, and the two connecting rods 1316 are slidably connected in two first sliding grooves 1312 respectively.

[0082] In a specific embodiment of the present invention, after pressing the pressing block 1205, the sliding plate 1203 moves to both sides under its pressure, thereby causing the locking block 1317 to release the third rectangular slider 1306. After unplugging the power connector 1315, the placement box 1305 can be removed for replacement. The placement box 1305, which is set on the surface of the lithium battery 1314, plays a protective role for the lithium battery 1314. The power connector 1310 set at one end of the baffle 1308 makes it easier to install the lithium battery 1314. The upper plate 1303, by inserting the card 1304 into the limiting slot 1307, further secures the lithium battery 1314. The moisture-proof outer shell 7, located on the surface of the valve body 9, is connected to the lower protective seat 4 by bolts, thus protecting the valve box 801 and the card slot box 1301 from moisture and water. The anti-slip outer shell 5 on the surface of the moisture-proof outer shell 7 prevents slippage during handling. The support frame 17 located under the valve body 9 provides overall support and prevents damage to components during installation. The first ribs 6, located on both sides of the support frame 17, prevent deformation of the support frame 17. The sliding mechanism of the abutment plate 1202 within the second rectangular groove 1208 further stabilizes the abutment plate 1202. The moisture-proof sheet 1402 on the upper cover 1401 protects the display device from moisture. The second magnetic sheet 1405 on the shell cover 1403, attracted to the first magnetic sheet 10, secures the upper cover 1401. The protective outer shell within the valve box 801... 808 serves to protect the smart water meter device 15. The L-shaped locking block 804 set in the valve box 801 can hold the protective shell 808 in place and can also be replaced as needed. It should be noted that the specific type of lithium battery 1314, power connector 1315 and smart water meter device 15 used shall be selected by those skilled in the art. The above-mentioned use of lithium battery 1314, power connector 1315 and smart water meter device 15 is known to those skilled in the art and will not be described in detail in this solution.

[0083] Please refer to the details. Figure 2 , Figure 6 and Figure 7A connecting box 1201 is fixedly connected to one side of the card slot box 1301. A second telescopic rod 1207 is fixedly connected to the lower inner wall of the connecting box 1201. A second spring 1206 is sleeved on the circumferential surface of the second telescopic rod 1207. A stop plate 1202 is fixedly connected to the upper end of the second telescopic rod 1207. A second rectangular sliding block 1204 is fixedly connected to one side of the connecting box 1201. A second rectangular sliding groove 12 is formed on one side of the connecting box 1201. 08. The second rectangular sliding block 1204 is slidably connected in the second rectangular sliding groove 1208. Sliding pieces 1203 are slidably connected in both third rectangular sliding grooves 1302. One end of each of the two connecting rods 1316 is fixedly connected to one end of the sliding piece 1203. A pressing block 1205 is fixedly connected to the upper end of the abutment plate 1202. An extension groove 1209 is provided at the upper end of the connecting box 1201. The pressing block 1205 is slidably connected in the extension groove 1209.

[0084] In this embodiment: by pressing the pressing block 1205 set in the connecting box 1201, the sliding piece 1203 is moved to both sides, thereby removing the locking block 1317, and the placement box 1305 can be taken out. The second rectangular sliding block 1204 set on one side of the abutment plate 1202 slides in the second rectangular sliding groove 1208, which makes it more stable when moving. After being released, the abutment plate 1202 can be popped out by the second telescopic rod 1207 set under the abutment plate 1202 under the elastic force of the second spring 1206.

[0085] Please refer to the details. Figure 9 and Figure 10 Both sides of the valve box 801 are fixedly connected to fixed slide blocks 802. The upper ends of the two fixed slide blocks 802 are provided with first rectangular slide grooves 803. The two first rectangular slide grooves 803 are slidably connected with first rectangular slide blocks 805. The lower ends of the two first rectangular slide blocks 805 are fixedly connected with L-shaped locking blocks 804. Both sides of the valve box 801 are fixedly connected to first telescopic rods 806. The circumferential surfaces of the two first telescopic rods 806 are fitted with first springs 807. The lower inner wall of the valve box 801 is fixedly connected to a protective shell 808.

[0086] In this embodiment, the protective shell 808 set on the surface of the smart water meter device 15 serves to protect the smart water meter device 15 and prevent its components from getting damp. The L-shaped locking block 804 set on one side of the fixed slide 802 can lock the protective shell 808 in place and can be replaced as needed.

[0087] Please refer to the details. Figure 8 and Figure 10The upper end of the valve box 801 is fixedly connected to the upper cover seat 1401 by bolts. The upper cover seat 1401 is hinged to one side of the shell cover 1403 by a hinge shaft. The shell cover 1403 is fixedly connected to one side of the shell cover 1404. The second magnetic piece 1405 is fixedly connected to one side of the connecting piece 1404. The upper inner wall of the shell cover 1403 is fixedly connected to the moisture-proof piece 1402. The valve box 801 has a first fixing groove 11 on one side. The first magnetic piece 10 is fixedly connected in the first fixing groove 11.

[0088] In this embodiment: the moisture-proof sheet 1402 provided in the upper cover 1401 can protect the display component, and the second magnetic sheet 1405 provided on the connecting sheet 1404 can cover the upper cover 1401 by adsorbing with the first magnetic sheet 10.

[0089] Please refer to the details. Figure 11 A third connector 1601 is fixedly connected to the circumferential surface of the valve body 9. A threaded rod 1603 is fixedly connected inside the third connector 1601 by threads. Two second ribs 1602 are fixedly connected to the circumferential surface of the third connector 1601.

[0090] In this embodiment: the third connector 1601 provided on one side of the valve body 9 allows for the addition of connectors as needed during use. The second rib 1602 provided on the third connector 1601 serves to fix the third connector 1601, making it less prone to deformation.

[0091] Please refer to the details. Figure 2 One end of the valve body 9 is fixedly connected to the guide tube 1 by bolts. The circumferential surface of the guide tube 1 is fitted with an upper retaining ring 3, and the lower end of the upper retaining ring 3 is movably hinged to a lower retaining ring 2 by a hinge shaft.

[0092] In this embodiment: by setting the upper retaining ring 3 on the surface of the conduit 1 and hinged to the lower retaining ring 2, when leakage occurs, the leaking part can be fixed as appropriate to achieve a waterproof effect.

[0093] Please refer to the details. Figure 1 The valve body 9 is fitted with a lower protective seat 4 on its circumferential surface, and the upper end of the lower protective seat 4 is fixedly connected to a moisture-proof shell 7 by bolts.

[0094] In this embodiment: the lower protective seat 4 set on the surface of the valve body 9 is connected to the moisture-proof shell 7. The moisture-proof shell 7 can be provided with a moisture-proof layer, so that it can prevent moisture inside the valve box 801.

[0095] Please refer to the details. Figure 1 The surface of the moisture-proof outer shell 7 is fixedly connected to the anti-slip outer shell 5.

[0096] In this embodiment, the anti-slip shell 5 set on the moisture-proof shell 7 provides a more stable function when picking up the valve body 9.

[0097] Please refer to the details. Figure 1 Both the conduit 1 and the valve body 9 are fitted with support frames 17 on their circumferential surfaces, and the two ends of the two support frames 17 are fixedly connected with first rib plates 6.

[0098] In this embodiment: the support frame 17 set on the conduit 1 plays the role of supporting the whole, and the first ribs 6 set on both sides of the support frame 17 play the role of stabilizing the whole.

[0099] The working principle and usage process of this invention are as follows: When replacing the lithium battery 1314, the moisture-proof shell 7 and the lower protective base 4 are first disassembled. Then, by pressing the pressing block 1205, the sliding plate 1203 is moved, thereby releasing the locking block 1317 from the third rectangular slider 1306. After unplugging the power connector 1315, the placement box 1305 is taken out. After replacement, the lithium battery 1314 is placed into the placement box 1305, and the placement box 1305 is slid between the sliding blocks 1311. The locking block 1317 locks the third rectangular slider 1306 under the elastic force of the third spring 1318. When installing the protective shell 808, the two first rectangular sliding blocks 805 can be pulled to install the protective shell 808. After the protective casing 808 covers the smart water meter device 15, it is released. The L-shaped locking block 804 presses against the protective casing 808 under the elastic force of the first spring 807, thus fixing it in place. When using the display device, it can be used by prying open the connecting piece 1404. After being released, the second magnetic piece 1405 is attracted to the first magnetic piece 10. This device makes it more convenient to replace the lithium battery 1314 without disassembly. During long-term use, moisture may appear inside the valve box 801. The protective casing 808 can be added as needed to protect the smart water meter device 15. The moisture-proof sheet 1402 set in the upper cover 1401 can prevent moisture and water from entering the display device.

[0100] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ultrasonic smart water meter, characterized in that: include: Valve box (801); The valve body (9) is fixedly connected to the lower inner wall of the valve box (801); A smart water meter device (15) is installed on the lower inner wall of the valve box (801); The fixing mechanism includes: Card slot box (1301) is fixedly connected to one side of the valve box (801); A baffle (1308) is fixedly connected to the inner wall of one side of the card slot box (1301); The first placement slot (1309) is opened at one end of the baffle (1308); The power connector (1310) is fixedly connected to the lower inner wall of the first placement slot (1309); Two sliding blocks (1311) are fixedly connected to the inner walls of the two sides of the card slot box (1301); Two fourth rectangular grooves (1313) are provided at the upper ends of the two sliding blocks (1311); Two third rectangular sliders (1306) are slidably connected to the two fourth rectangular grooves (1313), respectively; The placement box (1305) is fixedly connected to one side of the two third rectangular sliders (1306); Two limiting slots (1307) are provided at the upper end of the placement box (1305); A lithium battery (1314) is disposed within the placement box (1305); A power connector (1315) is fitted to one end of the power connector (1310); Two cards (1304) are snapped into the two limiting card slots (1307); Card plate (1303) is fixedly connected to the upper ends of the two cards (1304); Two second placement slots (1319) are respectively opened on one inner wall of the two fourth rectangular slides (1313); Two third springs (1318) are respectively fixedly connected to the inner wall of one side of the two second placement slots (1319); Two locking blocks (1317) are respectively fixedly connected to one end of the two third springs (1318); and Two connecting rods (1316) are fixedly connected to one side of the two locking blocks (1317), and the two connecting rods (1316) are slidably connected in the two first sliding grooves (1312); The card slot box (1301) has third rectangular sliding grooves (1302) on both inner walls, and sliding pieces (1203) are slidably connected in both third rectangular sliding grooves (1302); a connecting box (1201) is fixedly connected to one side of the card slot box (1301), and a second telescopic rod (1207) is fixedly connected to the lower inner wall of the connecting box (1201). A second spring (1206) is sleeved on the circumferential surface of the second telescopic rod (1207), and a backing plate (1202) is fixedly connected to the upper end of the second telescopic rod (1207). The connecting box (1201) has a second spring (1206) on one side of the card slot box (1301). A second rectangular sliding block (1204) is fixedly connected to the end of the connecting box (1201). A second rectangular sliding groove (1208) is opened on one side of the connecting box (1201). The second rectangular sliding block (1204) is slidably connected in the second rectangular sliding groove (1208). One end of each of the two connecting rods (1316) is fixedly connected to one end of the sliding plate (1203). A pressing block (1205) is fixedly connected to the upper end of the abutment plate (1202). A protrusion groove (1209) is opened at the upper end of the connecting box (1201). The pressing block (1205) is slidably connected in the protrusion groove (1209). The valve box (801) is fixedly connected to two fixed slides (802) at both ends. The upper ends of the two fixed slides (802) are provided with first rectangular slide grooves (803). The two first rectangular slide grooves (803) are slidably connected with first rectangular slide blocks (805). The lower ends of the two first rectangular slide blocks (805) are fixedly connected with L-shaped locking blocks (804). The valve box (801) is fixedly connected to two fixed ends with first telescopic rods (806). The circumferential surfaces of the two first telescopic rods (806) are fitted with first springs (807). The lower inner wall of the valve box (801) is fixedly connected with a protective shell (808).

2. The ultrasonic smart water meter according to claim 1, characterized in that: The upper end of the valve box (801) is fixedly connected to the upper cover seat (1401) by bolts. One side of the upper cover seat (1401) is movably hinged to the shell cover (1403) by a hinge shaft. One side of the shell cover (1403) is fixedly connected to the connecting piece (1404). One side of the connecting piece (1404) is fixedly connected to the second magnetic piece (1405). The upper inner wall of the shell cover (1403) is fixedly connected to the moisture-proof piece (1402). One side of the valve box (801) is provided with a first fixing groove (11). The first magnetic piece (10) is fixedly connected in the first fixing groove (11).

3. An ultrasonic smart water meter according to claim 2, characterized in that: A third connector (1601) is fixedly connected to the circumferential surface of the valve body (9). A threaded plug (1603) is fixedly connected inside the third connector (1601) by a thread. Two second ribs (1602) are fixedly connected to the circumferential surface of the third connector (1601).

4. An ultrasonic smart water meter according to claim 3, characterized in that: One end of the valve body (9) is fixedly connected to a conduit (1) by bolts. An upper retaining ring (3) is sleeved on the circumferential surface of the conduit (1). The lower end of the upper retaining ring (3) is movably hinged to a lower retaining ring (2) by a hinge shaft.

5. An ultrasonic smart water meter according to claim 4, characterized in that: The valve body (9) is fitted with a lower protective seat (4) on its circumferential surface, and the upper end of the lower protective seat (4) is fixedly connected to a moisture-proof shell (7) by bolts.

6. An ultrasonic smart water meter according to claim 5, characterized in that: The surface of the moisture-proof outer shell (7) is fixedly connected to the anti-slip outer shell (5).

7. An ultrasonic smart water meter according to claim 6, characterized in that: The circumferential surfaces of the conduit (1) and the valve body (9) are both fitted with support frames (17), and the two ends of the two support frames (17) are fixedly connected with first ribs (6).

8. The method of using an ultrasonic smart water meter according to claim 7, applied to an ultrasonic smart water meter according to any one of claims 1-7, characterized in that, Includes the following steps: S1. When replacing the lithium battery (1314), the sliding plate (1203) can be moved by pressing the pressing block (1205) and driving the opening plate (1202), thereby moving the locking block (1317). After unplugging the power connector (1315), the placement box (1305) can be taken out. After replacement, the card (1304) is inserted into the limiting slot (1307), and then the placement box (1305) is fixed by sliding it between the sliding blocks (1311). S2. When fixing the protective shell (808), the L-shaped locking block (804) can be moved by moving the two first rectangular sliding blocks (805), and then the protective shell (808) can be covered to cover the smart water meter device (15). Then, it can be released. Under the elastic force of the first spring (807), the L-shaped locking block (804) will lock the protective shell (808). S3. After using the display device, the second magnetic sheet (1405) can be attracted to the first magnetic sheet (10) by flipping the cover (1403) onto the side of the valve box (801), thereby protecting the display device. The moisture-proof sheet (1402) under the cover (1403) can waterproof and prevent moisture from the surface of the display device.

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