A kind of intelligent water meter plastic shell waterproof performance detection device

Abstract

The utility model relates to intelligent water meter detection technical field discloses a kind of intelligent water meter plastic shell waterproof performance detection device, including detection pool, and U-shaped support frame is fixedly connected in detection pool top, and U-shaped support frame top middle is fixedly embedded with electric push rod, and the output end of electric push rod bottom is fixedly connected with U-shaped plate, and two slide bars are fixedly connected between the both sides of U-shaped plate bottom, and the same end of two slide bars is slidably provided with the same slider, and the round hole compatible with slide bar is formed in two sliders, and the L-shaped backing plate is fixedly connected in the bottom of two sliders.The utility model, realize through electric push rod linkage U-shaped plate, L-shaped backing plate and other components, realize the integrated control of water meter lifting and fixed action, without additional power source, simplify equipment structure, improve detection process automation degree, single power source drive reduces equipment failure rate, shorten detection cycle, meet the efficient quality control requirement in large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of smart water meter testing technology, and in particular to a device for testing the waterproof performance of a smart water meter's plastic casing. Background Technology

[0002] With the advancement of smart city construction, smart water meters, as core equipment for water resource measurement and management, are widely used in various scenarios such as residential buildings, commercial buildings, and industrial sites. Their plastic casing, as a key structure directly in contact with the water medium, has waterproof performance that directly determines the metering accuracy, service life, and operational stability. Waterproofing failure can easily lead to internal circuit short circuits, sensor malfunctions, metering errors, or equipment failure, and even cause water waste and safety hazards. A search revealed a Chinese patent with authorization number CN223021465U, which discloses a device for testing the waterproof performance of a smart water meter's plastic casing. The device includes a support frame fixedly connected to the top of an electric push rod; a bidirectional lead screw rotatably connected between the support frames, with its right end penetrating the support frame; a threaded block symmetrically and threadedly connected to the bidirectional lead screw; a vertical plate symmetrically and fixedly connected to the bottom of the threaded block; a horizontal plate symmetrically arranged on the opposite side of the vertical plate; and a detection mechanism disposed on the frame and the smart water meter body. Place the smart water meter body on top of the horizontal plate, start the motor, the motor drives the bidirectional lead screw to rotate, the threaded block drives the vertical plate and the horizontal plate to move closer to each other until the vertical plate is in contact with both sides of the smart water meter body, thus completing the fixation of the smart water meter body. Connect the air outlet to the connector, add an appropriate amount of pure water into the frame, and control the electric push rod to lower the support frame. The fixed smart water meter body falls into the water, and the testing agency tests the waterproofness of the smart water meter body.

[0003] The aforementioned patent's device for testing the waterproof performance of a smart water meter's plastic casing has the following shortcomings: the device uses a motor to drive a bidirectional lead screw to rotate, thereby fixing the water meter. The extension and retraction of two electric push rods allows the water meter to rise and fall, facilitating immersion testing in water. However, the combination of a motor and two electric push rods significantly increases the device's operating cost. Therefore, a new device for testing the waterproof performance of a smart water meter's plastic casing has been designed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for testing the waterproof performance of the plastic casing of a smart water meter.

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

[0006] A device for testing the waterproof performance of a smart water meter's plastic casing includes a testing pool. A U-shaped support frame is fixedly connected to the top of the testing pool. An electric push rod is fixedly embedded in the middle of the top of the U-shaped support frame. A U-shaped plate is fixedly connected to the bottom output end of the electric push rod. Two sliding rods are fixedly connected between the two sides of the bottom of the U-shaped plate. The same slider is slidably fitted onto the same end of each of the two sliding rods. Each slider has a circular hole adapted to the sliding rod. An L-shaped support plate is fixedly connected to the bottom of each slider. A rubber pad is fixedly connected to the side of each L-shaped support plate that is close to each other. A connecting rod is rotatably connected to the same side of each slider. The side of each connecting rod that is close to each other is inclined upward. A T-shaped connecting block is rotatably connected to the other end of each connecting rod. When the T-shaped connecting block moves relative to the U-shaped plate, the two L-shaped support plates move closer together. When the T-shaped connecting block moves relative to the U-shaped plate, the two L-shaped support plates move away from each other. This achieves the fixing and loosening of the water meter, making it stable and easy to test when submerged in water, and easy to loosen after leaving the water surface.

[0007] Preferably, a counterweight is fixedly connected to the bottom of the T-shaped connecting block. The counterweight allows the two L-shaped trays to be separated from each other in their natural state. A drive rod is fixedly connected to the side of the T-shaped connecting block away from the U-shaped plate, and a limit block is fixedly connected to the other end of the drive rod.

[0008] Preferably, a mounting bracket is fixedly connected to the outer wall of the U-shaped plate near the drive rod, and a vertical plate is fixedly connected to the top of the mounting bracket. A vertical hole is opened in the middle of the vertical plate, and the drive rod is slidably connected in the vertical hole. The cooperation between the drive rod and the vertical hole makes the two L-shaped support plates symmetrically positioned on the U-shaped plate.

[0009] Preferably, the mounting frame is provided with limiting mechanisms on both sides. The limiting mechanism includes a strip frame fixedly connected to one side of the vertical plate. The top and bottom of the strip frame are rotatably connected to the same lead screw. The top of the lead screw passes through the strip frame and is fixedly connected to a handwheel. A screw block is screwed onto the lead screw. A lead screw nut that matches the lead screw is fixedly sleeved on the screw block. A stop bar is fixedly connected to the side of the screw block near the vertical hole.

[0010] Preferably, the two stop levers are located at the top and bottom of the drive rod, respectively. By limiting the position of the two stop levers, the two L-shaped trays can move closer to each other and further away from each other when the electric push rod is raised and lowered, which is convenient for clamping. At the same time, the position adjustment of the stop levers can enable the L-shaped trays to clamp water meters of different sizes.

[0011] Preferably, a protective shell is fixedly connected to the outer wall of the detection pool on the side away from the mounting frame, an air pump is fixedly installed inside the protective shell, an inflation pipe is fixedly connected to the output end of the air pump, and a connector is fixedly connected to the bottom of the inflation pipe.

[0012] Preferably, an underwater detection camera is fixedly connected to the middle of both sides of the inner wall of the detection pool, a control panel is fixedly connected to the outer wall of the detection pool near the air pump, a water inlet pipe is fixedly connected to the top side of the outer wall of the detection pool, a drain pipe is fixedly connected to the bottom side of the outer wall of the detection pool, and a control valve is fixedly installed on the drain pipe.

[0013] Preferably, a controller is provided at the bottom of the outer side of the detection pool, and the controller is electrically connected to the electric push rod, the air pump, the underwater detection camera and the control panel respectively.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By employing technologies such as U-shaped plates, L-shaped support plates, T-shaped connecting blocks, connecting rods, drive rods, and stop rods, the water meter is placed on two L-shaped support plates. An electric push rod lowers the water meter, automatically fixing it in place when submerged. This allows for accurate measurement. The water meter's fixation and lifting are achieved solely through the extension and retraction of the electric push rod, effectively solving the problems mentioned in the background technology. Furthermore, it achieves integrated control of the water meter's lifting and fixing actions through the linkage of the electric push rod with the U-shaped plates and L-shaped support plates, eliminating the need for an additional power source, simplifying the equipment structure, increasing the automation of the testing process, reducing equipment failure rates with a single power source, shortening the testing cycle, and meeting the high-efficiency quality control requirements of large-scale production.

[0016] 2. By setting the limit mechanism, the position of the two stop levers can be controlled by adjusting the handwheel, which allows control over the distance between the two L-shaped pallets when they descend, and the automatic separation of the two L-shaped pallets when they rise to the required position, thus enabling fixed detection of water meters of different sizes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a smart water meter plastic shell waterproof performance testing device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the U-shaped support frame of the intelligent water meter plastic shell waterproof performance testing device proposed in this utility model;

[0019] Figure 3 This utility model proposes a device for testing the waterproof performance of the plastic casing of a smart water meter. Figure 2 An enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the structure on the back of the U-shaped plate of the waterproof performance testing device for the plastic shell of a smart water meter proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the vertical plate of a smart water meter plastic shell waterproof performance testing device proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the structure on one side of the testing pool of a smart water meter plastic shell waterproof performance testing device proposed in this utility model.

[0023] In the diagram: 1. Detection pool; 101. Inlet pipe; 102. Drain pipe; 103. Control valve; 104. Control panel; 105. Protective shell; 106. Air pump; 107. Inflation pipe; 108. Connector; 109. Underwater detection camera; 2. U-shaped support frame; 201. Electric push rod; 3. U-shaped plate; 301. Slide rod; 302. Slider; 303. L-shaped support plate; 304. Rubber pad; 305. Connecting rod; 306. T-shaped connecting block; 307. Counterweight block; 308. Drive rod; 4. Mounting frame; 401. Vertical plate; 402. Vertical hole; 403. Strip frame; 404. Lead screw; 405. Handwheel; 406. Threaded block; 407. Stop bar. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-6 A device for testing the waterproof performance of a smart water meter's plastic casing includes a testing pool 1. A U-shaped support frame 2 is fixedly connected to the top of the testing pool 1. An electric push rod 201 is fixedly embedded in the middle of the top of the U-shaped support frame 2. A U-shaped plate 3 is fixedly connected to the bottom output end of the electric push rod 201. Two sliding rods 301 are fixedly connected between the two sides of the bottom of the U-shaped plate 3. The same slider 302 is slidably fitted onto the same end of the two sliding rods 301. Both sliders 302 have round holes that are adapted to the sliding rods 301. An L-shaped support plate 303 is fixedly connected to the bottom of both sliders 302. A rubber pad 304 is fixedly connected to the side of the two L-shaped support plates 303 that are close to each other. The top of both rubber pads 304 is provided with a triangular protrusion to facilitate the positioning and protection of the water meter. A connecting rod 305 is rotatably connected to the same side of both sliders 302. The side of the two connecting rods 305 that are close to each other is inclined upward. A T-shaped connecting block 306 is rotatably connected to the other end of the two connecting rods 305.

[0026] In this utility model, a counterweight 307 is fixedly connected to the bottom of the T-shaped connecting block 306. The counterweight 307 is set so that when there is no water meter on the top of the L-shaped tray 303, the two L-shaped trays 303 will be spread out to the maximum distance. A drive rod 308 is fixedly connected to the side of the T-shaped connecting block 306 away from the U-shaped plate 3, and a limit block is fixedly connected to the other end of the drive rod 308.

[0027] In this utility model, a mounting bracket 4 is fixedly connected to the outer wall of the U-shaped plate 3 on the side near the drive rod 308. A vertical plate 401 is fixedly connected to the top of the mounting bracket 4. A vertical hole 402 is opened in the middle of the vertical plate 401. The drive rod 308 is slidably connected in the vertical hole 402. The drive rod 308 can only slide vertically in the vertical hole 402, so that the two L-shaped support plates 303 are symmetrical and move synchronously.

[0028] In this utility model, the mounting bracket 4 is provided with limiting mechanisms on both sides. The limiting mechanism includes a strip frame 403 fixedly connected to one side of the vertical plate 401. The top and bottom of the strip frame 403 are rotatably connected to the same lead screw 404. The top of the lead screw 404 passes through the strip frame 403 and is fixedly connected to a handwheel 405. A screw block 406 is screwed onto the lead screw 404. A lead screw nut that matches the lead screw 404 is fixedly sleeved on the screw block 406. A stop bar 407 is fixedly connected to the side of the screw block 406 near the vertical hole 402.

[0029] In this utility model, two stop rods 407 are located at the top and bottom of the drive rod 308, respectively. The setting of the two stop rods 407 allows the tightening degree of the two L-shaped support plates 303 to be controlled, so that the two L-shaped support plates 303 can fix and clamp water meters of different sizes.

[0030] In this invention, a protective shell 105 is fixedly connected to the outer wall of the test pool 1 on the side away from the mounting frame 4. An air pump 106 is fixedly installed inside the protective shell 105. An air pump 107 is fixedly connected to the output end of the air pump 106. A connector 108 is fixedly connected to the bottom of the air pump 107. The air pump 106 can inflate the smart water meter through the air pump 107 and the connector 108 to test its waterproofness.

[0031] In this invention, underwater detection cameras 109 are fixedly connected to the middle of both sides of the inner wall of the detection pool 1. The two underwater detection cameras 109 can accurately monitor whether small bubbles are generated. A control panel 104 is fixedly connected to the outer wall of the detection pool 1 near the air pump 106. A water inlet pipe 101 is fixedly connected to the top side of the outer wall of the detection pool 1, and a drain pipe 102 is fixedly connected to the bottom side of the outer wall of the detection pool 1. A control valve 103 is fixedly installed on the drain pipe 102. The arrangement of the drain pipe 102 and the control valve 103 allows for timely discharge and replacement of sewage that has been used for a long time inside the detection pool 1.

[0032] In this utility model, a controller is provided at the bottom of the outer side of the detection pool 1, and the controller is electrically connected to the electric push rod 201, the air pump 106, the underwater detection camera 109 and the control panel 104 respectively.

[0033] Working principle: When using this device, the inlet pipe 101 is connected to the water supply pipe to ensure that an appropriate amount of water is injected into the detection pool 1, so that the water meter can be completely submerged in water when it descends. The device is ready for use once connected to mains power. The inlet end of the water meter to be tested is screwed to the connector 108 on the air inlet pipe 107 to achieve a seal. It is then placed on two L-shaped support plates 303. Due to the shape of the two L-shaped support plates 303, the water meter can be lifted. Then, the electric push rod 201 is activated, causing the U-shaped plate 3 to descend with the water meter. During the descent, the drive rod 308 remains in the vertical hole. When the water meter is submerged in water, the drive rod 308 connects with the bottom stop 407. The bottom stop 407 restricts the drive rod 308 from descending further. At this time, the U-shaped plate 3, slider 302, and L-shaped support plate 303 will still lower the water meter, but the drive rod 308 and T-shaped connecting block 306 can no longer descend. The T-shaped connecting block 306, relative to the U-shaped plate 3, will move upward, causing the T-shaped connecting block 306 to pull the two connecting rods 305. This pulls the two sliders 302, causing the two L-shaped support plates 303 to move closer together, fixing the water meter in place. Simultaneously, the rubber... The pad 304 prevents the water meter from becoming loose or damaged. The top of each rubber pad 304 has a triangular protrusion for limiting the water meter's position. Once the water meter is secured, the air pump 106 is activated to blow air into it. Two underwater detection cameras 109 observe whether air bubbles are released, indicating whether the water meter is waterproof. After this process, the electric push rod 201 retracts, raising the U-shaped plate 3 and the water meter. When the water meter leaves the water surface, the drive rod 308 contacts the top stop 407. At this point, the drive rod 308 and the T-shaped connecting block 306 cannot move with the water. The U-shaped plate 3 rises, and the two L-shaped support plates 303 separate under the support of the two connecting rods 305. At this point, the water meter can be easily removed. The entire device can fix and raise / lower the water meter by extending and retracting the electric push rod 201. At the same time, when fixing water meters of different sizes, the handwheel 405 is turned, causing the lead screw 404 to rotate, which drives the screw block 406 and the stop rod 407 at the bottom of the drive rod 308 to adjust their positions. The lowest position that the drive rod 308 can be lowered to can be adjusted, thereby controlling the distance between the two L-shaped support plates 303 and allowing water meters of different sizes to be fixed, thus improving the practicality of the device.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for testing the waterproof performance of a smart water meter's plastic casing, comprising a testing pool, characterized in that, A U-shaped support frame is fixedly connected to the top of the detection pool. An electric push rod is fixedly embedded in the middle of the top of the U-shaped support frame. A U-shaped plate is fixedly connected to the bottom output end of the electric push rod. Two sliding rods are fixedly connected between the two sides of the bottom of the U-shaped plate. The same slider is slidably fitted on the same end of the two sliding rods. The two sliders are provided with round holes that match the sliding rods. An L-shaped support plate is fixedly connected to the bottom of the two sliders. A rubber pad is fixedly connected to the side of the two L-shaped support plates that are close to each other. A connecting rod is rotatably connected to the same side of the two sliders. The side of the two connecting rods that are close to each other is inclined upward. A T-shaped connecting block is rotatably connected to the other end of the two connecting rods.

2. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 1, characterized in that, A counterweight is fixedly connected to the bottom of the T-shaped connecting block, and a drive rod is fixedly connected to the side of the T-shaped connecting block away from the U-shaped plate. A limit block is fixedly connected to the other end of the drive rod.

3. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 1, characterized in that, A mounting bracket is fixedly connected to the outer wall of the U-shaped plate near the drive rod. A vertical plate is fixedly connected to the top of the mounting bracket. A vertical hole is opened in the middle of the vertical plate, and the drive rod is slidably connected in the vertical hole.

4. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 3, characterized in that, Both sides of the mounting frame are provided with limiting mechanisms. Each limiting mechanism includes a strip frame fixedly connected to one side of the vertical plate. The top and bottom of the strip frame are rotatably connected to the same lead screw. A handwheel is fixedly connected to the top of the lead screw through the strip frame. A screw block is screwed onto the lead screw. A lead screw nut that matches the lead screw is fixedly sleeved on the screw block. A stop bar is fixedly connected to the side of the screw block near the vertical hole.

5. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 4, characterized in that, The two stops are located at the top and bottom of the drive lever, respectively.

6. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 1, characterized in that, A protective shell is fixedly connected to the outer wall of the detection pool on the side away from the mounting frame. An air pump is fixedly installed inside the protective shell. An inflation pipe is fixedly connected to the output end of the air pump, and a connector is fixedly connected to the bottom of the inflation pipe.

7. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 1, characterized in that, Underwater detection cameras are fixedly connected to the middle of both sides of the inner wall of the detection pool. A control panel is fixedly connected to the outer wall of the detection pool near the air pump. A water inlet pipe is fixedly connected to the top side of the outer wall of the detection pool, and a drain pipe is fixedly connected to the bottom side of the outer wall of the detection pool. A control valve is fixedly installed on the drain pipe.

8. The device for testing the waterproof performance of the plastic casing of a smart water meter according to claim 1, characterized in that, A controller is installed at the bottom of the outer side of the detection pool, and the controller is electrically connected to the electric push rod, the air pump, the underwater detection camera and the control panel.

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