Water meter and manufacturing process thereof

Abstract

The invention belongs to the technical field of water meter manufacturing, and particularly relates to a water meter and a manufacturing process thereof.The water meter comprises a water meter body, a display screen is fixedly connected to the water meter body, an impeller is rotatably connected to the interior of the water meter body, a filter box is connected to the interior of the water meter body, a water inlet groove is formed in the filter box, and a plurality of filter holes are formed in the filter box; the gathering plate A and the gathering plate B are fixedly connected into the water meter body, the connecting rod is slidably connected to the filtering box, an inclined bottom plate is fixedly connected to the connecting rod, a discharging groove is formed in the filtering box, the inclined bottom plate can shield the discharging groove, and a storage box is detachably connected to the lower side of the water meter body through bolts. The process is used for manufacturing the water meter and comprises the steps that firstly, the gathering plate A and the gathering plate B are welded in the water meter body; the water meter with the filtering effect can be manufactured, flowing water flow can be filtered conveniently, and the accuracy of the metering effect can be kept for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of water meter manufacturing, and particularly relates to a water meter and a manufacturing process thereof. Background Art

[0002] Traditional water meters mostly adopt mechanical impellers or ultrasonic sensing principles. Their measurement accuracy is easily affected by impurities in water such as sediment, rust, and algae. When water flows through a narrow measurement cavity, impurities are likely to deposit on the impeller shaft and the surface of the sensor, resulting in problems such as increased friction and uneven rotation resistance. Long-term accumulation will significantly reduce the measurement accuracy.

[0003] Although some water meters alleviate blockages by improving materials or optimizing the cavity structure, they still require frequent manual disassembly, cleaning, and maintenance, and it is difficult to adapt to high-turbidity water sources or old pipe network environments. Therefore, it is necessary to manufacture a water meter with a filtering effect to facilitate filtering of the flowing water and maintain the accuracy of the measurement effect for a long time. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a water meter and a manufacturing process thereof, which can manufacture a water meter with a filtering effect, facilitate filtering of the flowing water, and maintain the accuracy of the measurement effect for a long time.

[0005] A water meter includes a water meter main body, on which a display screen is fixedly connected. An impeller is rotatably connected inside the water meter main body, and a filter box is connected inside the water meter main body. The filter box is provided with a water inlet groove, and the filter box is provided with a plurality of filter holes.

[0006] It further includes a converging plate A and a converging plate B fixedly connected inside the water meter main body.

[0007] It further includes a connecting rod slidably connected to the filter box. An inclined bottom plate is fixedly connected to the connecting rod. The filter box is provided with a discharge groove, and the inclined bottom plate can block the discharge groove. The lower side of the water meter main body is detachably connected with a storage box through bolts.

[0008] It further includes a knocking head slidably connected to the connecting rod. The filter box is slidably connected to the converging plate A. An auxiliary baffle is fixedly connected to the filter box. A T-shaped rod is slidably connected to the auxiliary baffle. A plurality of arc-shaped convex blocks are fixedly connected to the T-shaped rod. A first compression spring is fixedly connected between the connecting rod and the knocking head, and a second compression spring is fixedly connected between the T-shaped rod and the auxiliary baffle.

[0009] It further includes a longitudinal rod fixedly connected between the converging plate A and the converging plate B. A matching rod is slidably connected to the longitudinal rod. A stirring part is connected to the matching rod. An arc-shaped panel is fixedly connected to the matching rod. A third compression spring is fixedly connected between the matching rod and the longitudinal rod.

[0010] A water meter manufacturing process is used to manufacture the above-mentioned water meter:

[0011] Step 1: Weld the converging plate A and the converging plate B inside the water meter main body;

[0012] Step 2: Feed the filter box between the converging plate A and the converging plate B, and then weld the fifth compression spring between the filter box and the converging plate A;

[0013] Step 3: Connect the storage box to the lower side of the water meter main body by tightening the bolts;

[0014] Step 4: Inject water into the water injection port on the left side of the water meter main body, and let the water flow out from the right side of the water meter main body to test whether the display screen can display numbers normally;

[0015] Step 5: Connect a cover plate that can block the internal structure to the water meter main body by rotating with a hinge to complete the manufacturing. Description of the Drawings

[0016] The present invention will be further described in detail below in conjunction with the drawings and specific implementation methods.

[0017] Figure 1 It is a schematic structural diagram of the water meter main body;

[0018] Figure 2 It is a schematic structural diagram of the filter box;

[0019] Figure 3 It is a schematic structural diagram of the inclined bottom plate;

[0020] Figure 4 It is a schematic structural diagram of the auxiliary baffle;

[0021] Figure 5 It is a schematic structural diagram of the friction wheel;

[0022] Figure 6 It is a schematic structural diagram of the converging plate B;

[0023] Figure 7 It is a schematic structural diagram of the stirring part;

[0024] Figure 8 It is a schematic structural diagram of the vertical rod;

[0025] Figure 9 It is a schematic structural diagram of the slider;

[0026] Figure 10 It is a schematic structural diagram of the sliding column;

[0027] Figure 11 and Figure 12 It is a schematic overall structural diagram of a water meter. Detailed Implementation Modes

[0028] A water meter includes a water meter main body 101, on which a display screen 102 is fixedly connected. Inside the water meter main body 101, an impeller 107 is rotatably connected. Inside the water meter main body 101, a filter box 201 is connected. The filter box 201 is provided with a water inlet groove 203. At a position opposite to the water inlet groove 203 on the filter box 201, a plurality of filter holes 204 are evenly distributed. The impeller 107 and the display screen 102 are connected by an electric circuit, so that when the impeller 107 rotates, the numbers displayed on the display screen 102 can be changed. This effect can be achieved by connecting a rotation sensor or a pulse counter to the water meter main body 101, which is a very mature existing technology and will not be elaborated here. The left side of the water meter main body 101 is provided with a water inlet, and the right side of the water meter main body 101 is provided with a water outlet.

[0029] It also includes a converging plate A 103 and a converging plate B 104 fixedly connected inside the water meter main body 101.

[0030] It also includes a connecting rod 206 slidably connected to the filter box 201. An inclined bottom plate 205 is fixedly connected to the connecting rod 206. The filter box 201 is provided with a discharge groove 210. The inclined bottom plate 205 can block the discharge groove 210. The lower side of the water meter main body 101 is detachably connected to a storage box 108 by bolts. A partition is fixedly connected inside the filter box 201. The partition can divide the internal space of the filter box 201 into front and rear parts. The partition is arranged close to the discharge groove 210 and can be in close contact with the upper side of the inclined bottom plate 205. A first electric push rod capable of pushing the connecting rod 206 to slide is fixedly connected to the filter box 201. The inclined bottom plate 205 is an inclined slope with a higher left side and a lower right side.

[0031] It also includes a knocking head 208 slidably connected to the connecting rod 206. The filter box 201 is slidably connected to the converging plate A 103. An auxiliary baffle 903 is fixedly connected to the filter box 201. A T-shaped rod 901 is slidably connected to the auxiliary baffle 903. A plurality of arc-shaped convex blocks 902 are fixedly connected to the T-shaped rod 901. A first compression spring is fixedly connected between the connecting rod 206 and the knocking head 208. A second compression spring is fixedly connected between the T-shaped rod 901 and the auxiliary baffle 903. The heights of the plurality of arc-shaped convex blocks 902 gradually increase from back to front. Arc chamfers are provided on the front sides of the plurality of arc-shaped convex blocks 902.

[0032] It also includes a longitudinal rod 106 fixedly connected between the converging plate A 103 and the converging plate B 104. A matching rod 601 is slidably connected to the longitudinal rod 106. A stirring part 801 is connected to the matching rod 601. An arc-shaped panel 602 is fixedly connected to the matching rod 601. A third compression spring is fixedly connected between the matching rod 601 and the longitudinal rod 106.

[0033] It also includes a rack 105 fixed between the gathering plate A103 and the gathering plate B104, which is rotatably connected to the cooperating rod 601 and the stirring part 801. A gear 803 is fixed to the stirring part 801, and the gear 803 can mesh with the rack 105. A plurality of stirring plates 802 are fixed to the stirring part 801, and the lengths of the plurality of stirring plates 802 gradually increase in the counterclockwise direction.

[0034] It also includes a rectangular plate 603 fixedly connected to the matching rod 601 , a toggle rod 207 fixedly connected to the connecting rod 206 , and an extension head 209 fixedly connected to the toggle rod 207 .

[0035] It also includes a fixed sleeve 302 connected to the gathering plate A103, a sliding column 401 is slidably connected to the fixed sleeve 302, a pushing plate 402 is slidably connected to the sliding column 401, a support rod 403 is fixed to the sliding column 401, the support rod 403 can contact the pushing plate 402, a fourth compression spring is fixed between the sliding column 401 and the pushing plate 402, a second electric push rod that can push the sliding column 401 to slide is fixed to the fixed sleeve 302, and a fifth compression spring is fixed between the filter box 201 and the gathering plate A103.

[0036] It also includes a slider 301 slidably connected to the gathering plate A103, a fixing sleeve 302 is fixedly connected to the slider 301, a transverse plate 211 is fixedly connected to the filter box 201, an oblique rod 202 is fixedly connected to the transverse plate 211, and a third electric push rod capable of pushing the slider 301 to slide is fixedly connected to the gathering plate A103.

[0037] The water meter also includes a friction wheel 501 rotatably connected to the gathering plate A103, a rotating head 502 is fixedly connected to the friction wheel 501, a pressing rod 303 is fixedly connected to the sliding block 301, a vertical rod 701 is slidably connected to the gathering plate A103, a rubber head 703 is fixedly connected to the vertical rod 701, the rubber head 703 can contact the rotating head 502, a cylindrical rod 702 is fixedly connected to the vertical rod 701, the cylindrical rod 702 can contact the pressing rod 303, and the friction wheel 501 can contact the filter box 201.

[0038] A water meter manufacturing process, the process is used to manufacture the water meter:

[0039] Step 1: Weld the gathering plate A103 and the gathering plate B104 inside the water meter body 101;

[0040] Step 2: Place the filter box 201 between the gathering plate A103 and the gathering plate B104, and then weld the fifth compression spring between the filter box 201 and the gathering plate A103;

[0041] Step 3: Connect the storage box 108 to the lower side of the water meter body 101 by tightening the bolts;

[0042] Step 4: Inject water into the water injection port on the left side of the water meter main body 101, and let the water flow out from the right side of the water meter main body 101 to test whether the display screen 102 can display numbers normally;

[0043] Step 5: Connect a cover plate that can block the internal structure to the water meter main body 101 by means of hinge rotation to complete the manufacturing.

[0044] Let the water flow gradually through the inside of the water meter main body 101 from left to right. The flowing water will push the impeller 107 to rotate inside the water meter main body 101. At this time, the rotating impeller 107 will record the amount of water flowing through, and then display it through the display screen 102 to complete the water volume measurement effect of the water meter. Before the water flow pushes the impeller 107 to rotate, it will first enter the filter box 201 through the water inlet groove 203, and then flow out of the filter box 201 through multiple filter holes 204. During this process, the impurities in the water flow will remain in the filter box 201 because they cannot pass through the filter holes 204, so as to ensure that the water flow that can come into contact with the impeller 107 later does not contain large solid impurities, thus avoiding the situation that the impeller 107 is blocked by impurities after long-term use and cannot rotate for subsequent water volume measurement. That is, this device can filter the flowing water and screen out the large solid impurities in it, and maintain the accuracy of the measurement effect for a long time.

[0045] The converging plate A 103 and the converging plate B 104 can converge the water flow entering the water meter main body 101, so that the water flow can be gradually gathered from left to right, and then the subsequent operation of pushing the impeller 107 to rotate is carried out. The gathered water flow can effectively impact the impeller 107, thus further ensuring the accuracy of the subsequent measurement effect;

[0046] At the same time, the water flow with stronger impact force can also effectively wash away the impurities adhering to the right inner wall of the filter box 201, so that the water flow can smoothly flow out through multiple filter holes 204, achieving the effect of avoiding blockage.

[0047] During the water volume measurement process, the impurities remaining in the filter box 201 will fall on the upper side of the inclined bottom plate 205. Due to the inclined surface setting of the inclined bottom plate 205, the impurities will automatically enter the right side of the filter box 201 for temporary storage. Subsequently, the connecting rod 206 can be operated regularly to slide, so that the inclined bottom plate 205 slides forward on the filter box 201. During this process, the partition plate will scrape the surface of the inclined bottom plate 205. At this time, the impurities temporarily stored on the surface of the inclined bottom plate 205 will be scraped off from the inclined bottom plate 205, and then fall into the storage box 108 through the discharge groove 210, thus achieving the effect of automatically discharging and storing impurities regularly, maintaining the filtering effect of the filter box 201 for a long time, and bringing convenience to the operation and maintenance process;

[0048] The staff can remove the storage box 108 by loosening the bolts regularly, so as to facilitate the uniform dumping of the impurities stored in the storage box 108, further bringing convenience to the actual operation and maintenance process;

[0049] Furthermore, the two trapezoidal plates can be connected in the filter box 201 by tightening bolts in the filter box 201, and the two trapezoidal plates are symmetrically arranged so that the short sides of the two trapezoidal plates are closest to each other. This can make the internal space between the two trapezoidal plates decrease first and then increase from left to right, thereby further increasing the pressure of water flowing into the filter box 201 and effectively preventing impurities from being carried out from the water inlet trough 203 by the water flow, further bringing convenience to actual use.

[0050] When performing the operation of discharging impurities in the filter box 201, first operate the filter box 201 to slide forward on the gathering plate A103, so that the filter box 201 moves the water inlet groove 203 out of the space between the gathering plate A103 and the gathering plate B104, so that the filter box 201 will not be in contact with the water flow during the impurity discharging operation, ensuring that the impurity discharging operation is carried out smoothly, until the discharge groove 210 is moved to a position facing the storage box 108, and then the inclined bottom plate 205 is slid to complete the impurity discharging operation. At the same time, when the inclined bottom plate 205 slides, the inclined bottom plate 205 will drive the knocking head 208 to slide synchronously, so that the knocking head 208 passes through multiple When the knocking head 208 passes the position of an arc-shaped protrusion 902, the arc-shaped protrusion 902 will push the knocking head 208 to slide on the connecting rod 206, and when the knocking head 208 is offset from the arc-shaped protrusion 902, the knocking head 208 will be automatically reset by the elastic force of the first compression spring, so that during the sliding process of the inclined bottom plate 205, the knocking head 208 can repeatedly store power to knock on the surface of the auxiliary baffle 903, so that the auxiliary baffle 903 drives the filter box 201 to vibrate as a whole, thereby facilitating the shaking off of impurities adhering to the right side of the filter box 201 and the rear side of the partition, and further facilitating the comprehensive discharge effect of impurities;

[0051] The different heights of the multiple arc-shaped protrusions 902 enable the filter box 201 to be struck at different positions and with different forces when the striking head 208 is used for striking, thereby further facilitating the impurities to be shaken off completely and achieving the effect of removing the impurities;

[0052] The front sides of the plurality of arc-shaped protrusions 902 are all provided with arc chamfers, so that when the inclined bottom plate 205 is reversely slid to reset, the striking head 208 can push the T-shaped rod 901 to slide upwards through the arc chamfers when it contacts the plurality of arc-shaped protrusions 902, overcoming the elastic force of the first compression spring, so that the striking head 208 can be smoothly reset;

[0053] When operating the filter box 201 to slide forward on the gathering plate A103, so that the filter box 201 moves into the water trough 203 and moves out from the space between the gathering plates A103 and B104, the auxiliary baffle 903 can be located in the space between the gathering plates A103 and B104, thereby blocking the water flow, preventing the water flow from directly contacting the impeller 107 without being filtered during the process of removing impurities, thereby ensuring the long-term protection effect on the impeller 107.

[0054] When the water flows continuously through the gathering plates A103 and B104 and then enters the filter box 201, the water flows will impact the matching rod 601. Since the impact forces in various directions provided by the water flow are unbalanced, the matching rod 601 can overcome the elastic force of the third compression spring and slide in random directions on the longitudinal rod 106 during the water metering process. During this process, the matching rod 601 and the stirring part 801 can stir the impurities in the water flow so that the impurities can be evenly distributed in the water flow, thereby avoiding the situation where the impurities are unevenly distributed and a large amount of impurities are accumulated at a certain position on the right side of the filter box 201, affecting the subsequent water flow.

[0055] The arc panel 602 can further expand the contact area between the matching rod 601 and the water flow, making it easier for the water flow to push the matching rod 601 to slide.

[0056] When the matching rod 601 slides back and forth in coordination with the elastic force of the third compression spring, the gear 803 transmits power to the rack 105, thereby causing the stirring portion 801 to rotate on the matching rod 601. During this process, the multiple stirring plates 802 on the stirring portion 801 further stir the water flow, thereby further avoiding uneven distribution of impurities.

[0057] At the same time, since the length of the multiple stirring plates 802 gradually increases in the counterclockwise direction, when the stirring part 801 rotates, the multiple stirring plates 802 can sequentially move the impurities at different distances from the stirring part 801, thereby further facilitating the movement of the impurities to different positions of the water flow, thereby achieving the effect of evenly distributing the impurities.

[0058] When performing the impurity discharge operation in the filter box 201, the inclined bottom plate 205 can be continuously operated to slide back and forth on the filter box 201, so that the filter box 201 vibrates multiple times, further improving the impurity discharge effect. At the same time, when the inclined bottom plate 205 slides, the toggle rod 207 and the extension head 209 can slide synchronously with the inclined bottom plate 205, so that the toggle rod 207 and the extension head 209 can toggle the rectangular plate 603, causing the matching rod 601 to actively slide, and then use the rotating stirring part 801 to continuously stir the water stored in the water meter body 101 to avoid impurity precipitation.

[0059] During the operation of the device, when impurities need to be discharged regularly to push the filter cartridge 201 to slide, the sliding column 401 slides on the fixed sleeve 302, so that the pushing plate 402 contacts the front side of the filter cartridge 201. Subsequently, the sliding column 401 continues to slide. During this process, the fourth compression spring will be gradually compressed, so that the thrust that the pushing plate 402 can provide to the filter cartridge 201 gradually increases. When the thrust increases to be greater than the sum of the sliding friction force of the fifth compression spring and the filter cartridge 201, the pushing plate 402 can push the filter cartridge 201 to slide, thus completing the subsequent impurity discharge operation. If there is too much impurity in the filter cartridge 201, resulting in a large sliding friction force of the filter cartridge 201, and the filter cartridge 201 cannot be pushed to slide by continuously sliding the sliding column 401, when the pushing plate 402 slides to contact the support rod 403, the support rod 403 can abut against the rear side of the pushing plate 402 to provide stable support for the pushing plate 402. At this time, continuously sliding the sliding column 401 can smoothly push the filter cartridge 201 to slide and complete the subsequent impurity discharge operation. When it is necessary for the support rod 403 to abut against the rear side of the pushing plate 402 to complete the pushing operation, it proves that there are more impurities in the water flow, otherwise it proves that there are fewer impurities in the water flow. Furthermore, by operating the filter cartridge 201, the water quality of the water flow in this impurity discharge batch can also be inspected, and the inspection result can also be displayed through the display screen 102, which further brings convenience to actual use;

[0060] A pressure sensor can be connected to the support rod 403 by tightening a bolt on the support rod 403. When the sliding column 401 continuously slides until the pressure sensor contacts the pushing plate 402, the pressure sensor can be stressed and the pressure sensor can transmit this signal, so as to complete the purpose of obtaining the inspection result.

[0061] During actual use, if the power source driving the sliding column 401 fails, resulting in abnormal impurity discharge, the slider 301 can be operated to slide horizontally on the converging plate A103, and then the inclined rod 202 can be pushed by the slider 301, so that the filter cartridge 201 can still slide forward to complete the subsequent impurity discharge effect and ensure the stable operation of the device.

[0062] The water meter further includes a friction wheel 501 rotatably connected to the converging plate A103. A rotating head 502 is fixedly connected to the friction wheel 501. A pressing rod 303 is fixedly connected to the slider 301. A vertical rod 701 is slidably connected to the converging plate A103. A rubber head 703 is fixedly connected to the vertical rod 701. The rubber head 703 can contact the rotating head 502. A cylindrical rod 702 is fixedly connected to the vertical rod 701. The cylindrical rod 702 can contact the pressing rod 303. The friction wheel 501 can contact the filter cartridge 201.

[0063] When the filter box 201 slides, it will drive the friction wheel 501 to rotate on the gathering plate A103. That is, when the filter box 201 is pushed by the push plate 402, it is also necessary to overcome the sliding friction force between the friction wheel 501 and the filter box 201. In actual use, the staff can adjust the inspection difficulty according to the water usage requirements. When the requirement for water purity is relatively high, the slider 301 can be operated to slide leftward on the gathering plate A103, so that the pressing rod 303 closely presses against the cylindrical rod 702. At this time, the vertical rod 701 will tend to slide downward, and then the rubber head 703 will press against the rotating head 502 and deform. At this time, the sliding difficulty of the friction wheel 501 will increase. Then, when the subsequent pushing operation is carried out by the push plate 402, if the water quality inspection can be successfully passed, it means that there are fewer impurities contained in the filter box 201, thus achieving the effect of adjusting the inspection difficulty.

Claims

1. A water meter, characterized in that: The water meter comprises a water meter body (101), a display screen (102) is fixedly connected to the water meter body (101), an impeller (107) is rotatably connected inside the water meter body (101), a filter box (201) is connected inside the water meter body (101), a water inlet groove (203) is provided on the filter box (201), and a plurality of filter holes (204) are provided on the filter box (201).

2. A water meter according to claim 1, characterized in that: It also includes a gathering plate A (103) and a gathering plate B (104) fixedly connected in the water meter body (101).

3. A water meter according to claim 2, characterized in that: The water meter also comprises a connecting rod (206) slidably connected to the filter box (201), an inclined bottom plate (205) being fixedly connected to the connecting rod (206), a discharge groove (210) being provided on the filter box (201), the inclined bottom plate (205) being capable of shielding the discharge groove (210), and a storage box (108) being detachably connected to the lower side of the water meter body (101) via bolts.

4. A water meter according to claim 3, characterized in that: The invention also comprises a striking head (208) slidably connected to the connecting rod (206); the filter box (201) is slidably connected to the gathering plate A (103); an auxiliary baffle (903) is fixedly connected to the filter box (201); a T-shaped rod (901) is slidably connected to the auxiliary baffle (903); a plurality of arc-shaped protrusions (902) are fixedly connected to the T-shaped rod (901); a first compression spring is fixedly connected between the connecting rod (206) and the striking head (208); and a second compression spring is fixedly connected between the T-shaped rod (901) and the auxiliary baffle (903).

5. A water meter according to claim 4, characterized in that: The invention also comprises a longitudinal rod (106) fixedly connected between the gathering plate A (103) and the gathering plate B (104); a matching rod (601) is slidably connected to the longitudinal rod (106); a stirring portion (801) is connected to the matching rod (601); an arc panel (602) is fixedly connected to the matching rod (601); and a third compression spring is fixedly connected between the matching rod (601) and the longitudinal rod (106).

6. A water meter according to claim 5, characterized in that: The invention also includes a rack (105) fixedly connected between the gathering plate A (103) and the gathering plate B (104), the matching rod (601) is rotatably connected to the stirring part (801), a gear (803) is fixedly connected to the stirring part (801), the gear (803) can mesh with the rack (105), and a plurality of stirring plates (802) are fixedly connected to the stirring part (801), and the lengths of the plurality of stirring plates (802) gradually increase in the counterclockwise direction.

7. A water meter according to claim 6, characterized in that: It also includes a rectangular plate (603) fixedly connected to the matching rod (601), a toggle rod (207) fixedly connected to the connecting rod (206), and an extension head (209) fixedly connected to the toggle rod (207).

8. A water meter according to claim 7, characterized in that: It also includes a fixed sleeve (302) connected to the gathering plate A (103), a sliding column (401) is slidably connected to the fixed sleeve (302), a push plate (402) is slidably connected to the sliding column (401), a support rod (403) is fixedly connected to the sliding column (401), the support rod (403) can contact the push plate (402), a fourth compression spring is fixedly connected between the sliding column (401) and the push plate (402), and a fifth compression spring is fixedly connected between the filter box (201) and the gathering plate A (103).

9. A water meter according to claim 6, characterized in that: It also includes a slider (301) slidably connected to the gathering plate A (103), a fixing sleeve (302) fixedly connected to the slider (301), a transverse plate (211) fixedly connected to the filter box (201), and an oblique rod (202) fixedly connected to the transverse plate (211).

10. A water meter manufacturing process, characterized in that: The process is used to manufacture the water meter described in claim 9: Step 1: Welding the gathering plate A (103) and the gathering plate B (104) inside the water meter body (101); Step 2: insert the filter box (201) between the gathering plate A (103) and the gathering plate B (104), and then weld a fifth compression spring between the filter box (201) and the gathering plate A (103); Step 3: Connect the storage box (108) to the lower side of the water meter body (101) by tightening the bolts; Step 4: Pour water into the water inlet on the left side of the water meter body (101), and let the water flow out from the right side of the water meter body (101), and test whether the display screen (102) can display numbers normally; Step 5: Connect a cover plate capable of shielding the internal structure to the water meter body (101) by rotating the cover plate through hinges to complete the manufacturing process.

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