Water meter box with anti-clogging drain hole
By designing a protective cover, filter cylinder, and flow guide bucket in the water meter box to prevent clogging, the problem of easy clogging of the drain hole is solved, enabling rapid drainage and convenient cleaning of accumulated water, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIGONG PENGCHENG TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-26
AI Technical Summary
The drainage holes of existing water meter boxes are easily blocked by debris such as mud, fallen leaves, and gravel, causing water to accumulate and preventing it from draining, which affects the stable operation of the water supply system. In addition, the existing filter screen has a simple structure that is not easy to disassemble and clean, resulting in high maintenance costs.
A water meter box with an anti-clogging drainage hole was designed. The anti-clogging drainage mechanism consists of a protective cover, a filter cylinder, and a flow guide bucket. The flow guide bucket collects accumulated water and filters small-diameter debris through the filter screen. The protective cover blocks large-particle debris, and the fixed sealing component facilitates disassembly and cleaning.
It enables rapid drainage of accumulated water, avoids clogging of drainage holes, reduces maintenance costs, and improves installation stability and sealing.
Smart Images

Figure CN224416175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water meter box technology, and in particular to a water meter box with an anti-clogging drainage hole. Background Technology
[0002] Water meter boxes are essential devices used to protect water meters, valves, and other water supply facilities. They are widely used in residential communities, commercial buildings, and municipal water supply systems. In actual use, water meter boxes are prone to water accumulation due to rainwater seepage, condensation buildup in pipes, or accidental leaks. If this accumulated water cannot be drained in time, it can lead to water meter corrosion, decreased metering accuracy, and even valve jamming or pipe freezing, severely impacting the stable operation of the water supply system.
[0003] To address the issue of water accumulation, existing water meter boxes typically have drainage holes at the bottom or side walls. However, these drainage holes generally suffer from poor anti-clogging performance. On the one hand, debris such as mud, fallen leaves, weeds, and gravel from the outdoor environment can easily enter the drainage holes with rainwater or airflow, causing blockages over time and preventing water from draining. On the other hand, while some water meter boxes have simple filters at the drainage holes, these filters have a limited structure and can only block large particles. Fine mud and sand will gradually clog the filter pores. Furthermore, the filters are often fixed structures, making them difficult to disassemble and clean. Cleaning requires disassembling the entire water meter box, which is cumbersome and costly to maintain. Therefore, we propose a water meter box with anti-clogging drainage holes to solve these problems. Utility Model Content
[0004] The purpose of this utility model is to solve the above-mentioned shortcomings and to propose a water meter box with an anti-clogging drainage hole.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A water meter box with anti-clogging drainage holes includes a water meter box body. A main water pipe is fixedly connected to the inner walls of the front and rear sides of the water meter box body. Multiple branch pipes are fixedly connected to one side of the main water pipe. A water meter body is installed on the branch pipe. A drain pipe is fixedly connected to the bottom side of the water meter box body. An anti-clogging drainage mechanism is installed on the drain pipe. The anti-clogging drainage mechanism includes a convex ring, a protective cover, a filter cylinder, and a flow guide. A fixed sealing assembly is provided between the convex ring and the protective cover. Multiple drainage holes are opened on one side of the protective cover. A box cover is rotatably connected to the top of the water meter box body. A flow guide plate is fixedly connected to the inner wall of the bottom of the water meter box body.
[0007] Specifically, the guide bucket is fixedly sleeved inside the drain pipe, and a sealing ring is fixedly connected to one side of the guide bucket, which movably abuts against one side of the filter cylinder.
[0008] Specifically, a filter screen is fixedly connected inside the filter cylinder, and a metal handle is fixedly connected to one side of the filter cylinder.
[0009] Specifically, two elastic retaining rings are fixedly connected to the outside of the filter cylinder, and two annular grooves are opened inside the drain pipe. The two elastic retaining rings are respectively movably engaged in the corresponding annular grooves.
[0010] Specifically, four support rods are fixedly connected to one side of the protective cover, and the four support rods movably abut against one side of the filter cylinder.
[0011] Specifically, the fixed sealing assembly includes a snap-fit fixing unit and a sealing unit. The snap-fit fixing unit includes four elastic claws fixedly connected to one side of the protective cover. All four elastic claws are movably snapped onto one side of the convex ring. The convex ring is fixedly sleeved on the outside of the drain pipe. The outer side of the protective cover is provided with an external thread. The protective cover is threaded with a compression ring through the external thread. The four elastic claws movably abut against the compression ring.
[0012] Specifically, the sealing unit includes a sealing groove formed on one side of the drain pipe, four cavities formed between the drain pipe and the convex ring, and an abutting ball that movably abuts against the inner side of the elastic claw. A pressure rod is fixedly connected to the inner side of the abutting ball, and a sliding plate is fixedly sleeved on the outer side of the pressure rod. The same return spring is fixedly connected between the sliding plate and the cavity. A pressure receiving plate movably abuts against the inclined surface of the pressure rod, and a rubber ring is fixedly connected to one side of the pressure receiving plate. The rubber ring movably abuts against one side of the protective cover.
[0013] Specifically, the four sliding discs are respectively slidably sleeved in the corresponding cavities, and the four return springs are respectively sleeved on the outside of the corresponding pressure rods.
[0014] In this utility model, a water meter box with an anti-clogging drain hole is provided. When water accumulates inside the water meter box, the water is guided by the guide plate at the bottom of the water meter box to converge in the guide bucket, and then flows into the filter cylinder through the guide bucket. The filter screen on the filter cylinder filters out small-diameter impurities in the water. The filtered water is then discharged from the drain hole. The protective cover and the drain hole prevent large external particles from entering the filter cylinder, thus avoiding the filter screen from being clogged and reducing the drainage effect.
[0015] In this utility model, a water meter box with an anti-clogging drain hole is described. When cleaning is required, first loosen the compression ring so that it moves to the left without compressing the four elastic claws. At this time, the four elastic claws are pushed outward, causing them to disengage from the convex ring, and the protective cover is not fixed. Then, the protective cover and support rod can be removed. Then, the filter cartridge can be pulled out through the metal handle for cleaning, maintenance, and replacement. After cleaning, the filter cartridge is placed into the drain pipe so that it abuts against the sealing ring. Finally, the protective cover is put on. At this time, the elastic claws can first compress the four contact balls, causing them to move inward and compress the pressure rod. The pressure rod moves inward and compresses the pressure plate and rubber ring to the left, so that the rubber ring can firmly abut against the protective cover, improving the sealing effect. Finally, the elastic claws engage with one side of the convex ring to initially lock the protective cover. Finally, tighten the compression ring so that the compression ring moves to the right and compresses the four elastic claws inward, preventing the elastic claws from deforming outward and affecting the stability of the protective cover.
[0016] This utility model has a reasonable structural design. By setting up an anti-clogging drainage mechanism composed of a protective cover, a filter cylinder, and a guide bucket, it can achieve graded blocking of debris. The drainage holes of the protective cover can block large particles such as fallen leaves and gravel, while the filter screen of the filter cylinder can filter small particles such as mud and fine debris, effectively preventing debris of different sizes from clogging the drain pipe and ensuring that accumulated water is discharged quickly. The fixed sealing components not only facilitate disassembly, cleaning, and replacement, but also improve the stability and sealing during installation, preventing water ingress. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a water meter box with an anti-clogging drainage hole proposed in this utility model;
[0018] Figure 2 This is an overall cross-sectional view of a water meter box with an anti-clogging drainage hole proposed in this utility model;
[0019] Figure 3 This is a cross-sectional view of the drain pipe of a water meter box with an anti-clogging drain hole proposed in this utility model.
[0020] Figure 4 for Figure 3 A schematic diagram of the structure of part A.
[0021] In the diagram: 1. Water meter box; 2. Main water pipe; 3. Branch pipe; 4. Water meter body; 5. Box cover; 6. Guide plate; 7. Drain pipe; 8. Anti-clogging drainage mechanism; 81. Guide bucket; 82. Sealing ring; 83. Filter cylinder; 84. Elastic retaining ring; 85. Annular groove; 86. Filter screen; 87. Metal handle; 88. Protective cover; 89. Drain hole; 810. Support rod; 811. External thread; 812. Compression ring; 813. Convex ring; 814. Elastic claw; 815. Contact ball; 816. Slide plate; 817. Return spring; 818. Pressure rod; 819. Sealing groove; 820. Pressure plate; 821. Rubber ring; 822. Cavity. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-4 A water meter box with anti-clogging drainage holes includes a water meter box body 1. A main water pipe 2 is fixedly connected to the inner walls of the front and rear sides of the water meter box body 1. Multiple branch pipes 3 are fixedly connected to one side of the main water pipe 2. A water meter body 4 is installed on the branch pipes 3. A drain pipe 7 is fixedly connected to the bottom side of one side of the water meter box body 1. An anti-clogging drainage mechanism 8 is installed on the drain pipe 7. The anti-clogging drainage mechanism 8 includes a convex ring 813, a protective cover 88, a filter cylinder 83 and a guide bucket 81. A fixed sealing assembly is provided between the convex ring 813 and the protective cover 88. Multiple drainage holes 89 are opened on one side of the protective cover 88. A box cover 5 is rotatably connected to the top of the water meter box body 1. A guide plate 6 is fixedly connected to the inner wall of the bottom of the water meter box body 1.
[0024] The above solution is adopted as follows: When water accumulates inside the water meter box 1, the water is guided by the guide plate 6 at the bottom of the water meter box 1 and flows into the guide bucket 81. Then, it flows into the filter cylinder 83 through the guide bucket 81. The filter screen 86 on the filter cylinder 83 filters out small particles of debris in the water. The filtered water is then discharged from the drain hole 89. The protective cover 88 and the drain hole 89 can prevent large particles of debris from entering the filter cylinder 83, thus avoiding the filter screen 86 from being blocked and reducing the drainage effect.
[0025] Furthermore, the guide bucket 81 is fixedly installed inside the drain pipe 7, and a sealing ring 82 is fixedly connected to one side of the guide bucket 81. The sealing ring 82 is movably abutted against one side of the filter cylinder 83 to ensure that all the accumulated water flows into the filter cylinder 83, while preventing debris from entering from the joint gap.
[0026] Furthermore, a filter screen 86 is fixedly connected inside the filter cylinder 83, and a metal handle 87 is fixedly connected to one side of the filter cylinder 83 to facilitate pulling out the filter cylinder 83.
[0027] Furthermore, two elastic retaining rings 84 are fixedly connected to the outside of the filter cartridge 83, and two annular grooves 85 are opened inside the drain pipe 7. The two elastic retaining rings 84 are respectively movably engaged in the corresponding annular grooves 85, which can quickly position and install the filter cartridge 83.
[0028] Furthermore, four support rods 810 are fixedly connected to one side of the protective cover 88. The four support rods 810 are movably abutted against one side of the filter cartridge 83, which facilitates the support of the filter cartridge 83 and improves the stability of the filter cartridge 83 installation.
[0029] Furthermore, refer to Figures 2-3 The fixed sealing assembly includes a snap-fit fixing unit and a sealing unit. The snap-fit fixing unit includes four elastic claws 814 fixedly connected to one side of the protective cover 88. All four elastic claws 814 are movably snapped onto one side of the convex ring 813. The convex ring 813 is fixedly sleeved on the outside of the drain pipe 7. An external thread 811 is provided on the outside of the protective cover 88. A compression ring 812 is threaded onto the protective cover 88 through the external thread 811. The four elastic claws 814 movably abut against the compression ring 812. The sealing unit includes a sealing groove 81 on one side of the drain pipe 7. 9. Four cavities 822 are formed between the drain pipe 7 and the convex ring 813, and a contact ball 815 is movably abutted against the inner side of the elastic claw 814. A pressure rod 818 is fixedly connected to the inner side of the contact ball 815. A slide plate 816 is fixedly sleeved on the outer side of the pressure rod 818. The same return spring 817 is fixedly connected between the slide plate 816 and the cavity 822. A pressure plate 820 is movably abutted against the inclined surface of the pressure rod 818. A rubber ring 821 is fixedly connected to one side of the pressure plate 820. The rubber ring 821 movably abuts against one side of the protective cover 88.
[0030] Using the above method: When cleaning is required, first loosen the compression ring 812, causing it to move to the left without compressing the four elastic claws 814. This allows the four elastic claws 814 to disengage from the convex ring 813, thus preventing the protective cover 88 from being fixed. At this point, the protective cover 88 and support rod 810 can be removed. Then, the filter cartridge 83 can be pulled out using the metal handle 87 for cleaning, maintenance, and replacement. After cleaning, the filter cartridge 83 is placed into the drain pipe 7, ensuring it abuts against the sealing ring 82. Finally, the protective cover 88 is replaced. At this point, the elastic claws 814 can first compress the four elastic claws 814. The contact ball 815 is squeezed, causing it to move inward and squeeze the pressure rod 818. The pressure rod 818 moves inward and squeezes the pressure plate 820 and the rubber ring 821 to the left, so that the rubber ring 821 can firmly abut against the protective cover 88, improving the sealing effect. Finally, the elastic claw 814 engages with one side of the convex ring 813 to initially lock the protective cover 88. Finally, the compression ring 812 is tightened, causing the compression ring 812 to move to the right and squeeze the four elastic claws 814 inward, preventing the elastic claws 814 from deforming outward and affecting the stability of the protective cover 88.
[0031] Furthermore, the four sliding discs 816 are respectively slidably sleeved in the corresponding cavities 822, and the four return springs 817 are respectively sleeved on the outside of the corresponding pressure rods 818, which can guide the return springs 817 and the sliding discs 816 to make their movement more stable.
[0032] In this utility model, when water accumulates inside the water meter box 1, the water is guided by the guide plate 6 at the bottom of the water meter box 1 and flows into the guide bucket 81. Then, it flows into the filter cylinder 83 through the guide bucket 81. The filter screen 86 on the filter cylinder 83 filters out small-diameter impurities in the water. The filtered water is then discharged from the drain hole 89. The protective cover 88 and the drain hole 89 prevent large external particles from entering the filter cylinder 83, thus avoiding the filter screen 86 from being blocked and reducing the drainage effect.
[0033] When cleaning is required, first loosen the compression ring 812, moving it to the left without compressing the four elastic claws 814. This allows the four elastic claws 814 to disengage from the convex ring 813, thus disengaging the protective cover 88. The protective cover 88 and support rod 810 can then be removed. Next, pull out the filter cartridge 83 using the metal handle 87 for cleaning, maintenance, and replacement. After cleaning, place the filter cartridge 83 into the drain pipe 7, ensuring it abuts against the sealing ring 82. Finally, replace the protective cover 88. At this point, the elastic claws 814 can engage the four contact balls. 815 is squeezed, causing it to move inward and squeeze the pressure rod 818. The pressure rod 818 moves inward and squeezes the pressure plate 820 and the rubber ring 821 to the left, so that the rubber ring 821 can firmly abut against the protective cover 88, improving the sealing effect. Finally, the elastic claw 814 engages with one side of the convex ring 813 to initially lock the protective cover 88. Finally, the compression ring 812 is tightened, causing the compression ring 812 to move to the right and squeeze the four elastic claws 814 inward, preventing the elastic claws 814 from deforming outward and affecting the stability of the protective cover 88.
Claims
1. A water meter box with an anti-clogging drain hole, characterized in that, The device includes a water meter housing (1), with a main water pipe (2) fixedly connected to the inner walls of the front and rear sides of the water meter housing (1). Multiple branch pipes (3) are fixedly connected to one side of the main water pipe (2), and a water meter body (4) is installed on the branch pipe (3). A drain pipe (7) is fixedly connected to the bottom of one side of the water meter housing (1), and an anti-clogging drainage mechanism (8) is installed on the drain pipe (7). The anti-clogging drainage mechanism (8) includes a convex ring (813), a protective cover (88), a filter cylinder (83), and a flow guide (81). A fixed sealing assembly is provided between the convex ring (813) and the protective cover (88). Multiple drainage holes (89) are opened on one side of the protective cover (88). A housing cover (5) is rotatably connected to the top of the water meter housing (1), and a flow guide plate (6) is fixedly connected to the inner wall of the bottom of the water meter housing (1).
2. A water meter box with an anti-clogging drain hole according to claim 1, characterized in that, The guide bucket (81) is fixedly sleeved inside the drain pipe (7), and a sealing ring (82) is fixedly connected to one side of the guide bucket (81). The sealing ring (82) is movably abutting against one side of the filter cylinder (83).
3. A water meter box with an anti-clogging drain hole according to claim 1, characterized in that, A filter screen (86) is fixedly connected inside the filter cylinder (83), and a metal handle (87) is fixedly connected to one side of the filter cylinder (83).
4. A water meter box with an anti-clogging drain hole according to claim 1, characterized in that, Two elastic retaining rings (84) are fixedly connected to the outside of the filter cylinder (83), and two annular grooves (85) are opened in the drain pipe (7). The two elastic retaining rings (84) are respectively movably engaged in the corresponding annular grooves (85).
5. A water meter box with an anti-clogging drain hole according to claim 1, characterized in that, Four support rods (810) are fixedly connected to one side of the protective cover (88), and the four support rods (810) are movably abutting against one side of the filter cylinder (83).
6. A water meter box with an anti-clogging drain hole according to claim 1, characterized in that, The fixed sealing assembly includes a snap-fit fixing unit and a sealing unit. The snap-fit fixing unit includes four elastic claws (814) fixedly connected to one side of the protective cover (88). The four elastic claws (814) are all movably snapped onto one side of the convex ring (813). The convex ring (813) is fixedly sleeved on the outside of the drain pipe (7). The outer side of the protective cover (88) is provided with an external thread (811). The protective cover (88) is threaded with a compression ring (812) through the external thread (811). The four elastic claws (814) movably abut against the compression ring (812).
7. A water meter box with an anti-clogging drain hole according to claim 6, characterized in that, The sealing unit includes a sealing groove (819) on one side of the drain pipe (7), four cavities (822) between the drain pipe (7) and the convex ring (813), and a contact ball (815) that movably abuts against the inner side of the elastic claw (814). A pressure rod (818) is fixedly connected to the inner side of the contact ball (815). A slide plate (816) is fixedly sleeved on the outer side of the pressure rod (818). The same return spring (817) is fixedly connected between the slide plate (816) and the cavity (822). A pressure plate (820) movably abuts against the inclined surface of the pressure rod (818). A rubber ring (821) is fixedly connected to one side of the pressure plate (820). The rubber ring (821) movably abuts against one side of the protective cover (88).
8. A water meter box with an anti-clogging drain hole according to claim 7, characterized in that, Four sliding discs (816) are respectively slidably sleeved in the corresponding cavities (822), and four return springs (817) are respectively sleeved on the outside of the corresponding pressure rods (818).