Split-mounted water leakage detection device for prepayment water meter

Abstract

The invention discloses a split-mounted prepayment water meter water leakage detection device, and relates to the technical field of water meter water leakage detection, the split-mounted prepayment water meter water leakage detection device comprises a meter body, a water inlet pipe is fixedly mounted on the back of the meter body, a water outlet pipe is fixedly mounted on the front portion of the meter body, a connecting pipe is fixedly mounted on the front portion of the water outlet pipe, and a dial plate is fixedly mounted on the top of the meter body; a water leakage detection device is arranged on the inner wall of the water outlet pipe, a detection anti-blocking mechanism is arranged in the water outlet pipe, the water leakage problem in a water meter or a pipeline system can be found in time through the water leakage detection device, unnecessary water resource waste is avoided, and then a user is helped to reduce water fee expenditure; meanwhile, timely feedback of the water leakage detection device can help users and property management personnel or maintenance personnel to find water leakage points as early as possible and repair the water leakage problem in time.

Description

Technical Field

[0001] The invention relates to the technical field of water meter leakage detection, in particular to a prepaid water meter leakage detection device which is installed in a split manner. Background Art

[0002] A water meter leak detection device is a device used to detect leaks in a water pipe system, usually used in conjunction with a water meter. This device can monitor water flow, identify and locate leaks, and help detect and repair leaks in a timely manner, thus avoiding water waste and property losses.

[0003] The patent with the patent announcement number CN203869812U relates to the technical field of water meter leakage detection. The patent provides a water meter leakage detection device, which includes a water pipe slide rail, a sliding block, and a detection box; the sliding block and the water pipe slide rail are sealed and slidably assembled, and the water pipe slide rail is designed with a through hole connected to the detection box on the wall where the sliding block slides, one end of the sliding block is connected by a spring, and one end of the detection box is connected to the output water pipe; the detection box is designed with an observation window made of transparent material through which the sliding block can be seen. The device is installed in the waterway. If there is no leakage in the waterway, the spring pushes the sliding block to close the through hole. When there is a leak in the detection part of the pipeline, the water pressure pushes the sliding block to compress the spring so that the through hole connects the water pipe slide rail with the detection box, allowing water to seep out. At this time, it can be easily viewed from the observation window.

[0004] In the above patent, when there is a leak in the detection part of the pipeline, the water pressure pushes the sliding block to compress the spring so that the through hole connects the water pipe slide rail with the detection box, allowing water to seep out. At this time, it can be conveniently viewed from the observation window. However, it is difficult to prevent impurities from clogging the pipeline after the water flows through, which can easily cause the pipeline to be blocked and cause poor water flow. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a split-installation prepaid water meter leakage detection device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a prepaid water meter leakage detection device installed in a split body, comprising a meter body, a water inlet pipe is fixedly installed on the back of the meter body, a water outlet pipe is fixedly installed on the front of the meter body, a connecting pipe is fixedly installed on the front of the water outlet pipe, a dial is fixedly installed on the top of the meter body, a water leakage detection device is arranged on the inner wall of the water outlet pipe, and a detection and anti-blocking mechanism is arranged inside the water outlet pipe; Among them, the detection and anti-blocking mechanism includes a rotating rod, a fixing plate, a fixing rod, a sliding rod, an elastic telescopic rod, a sealing ring, an L-shaped rod, a fixing block, a clamping block and a long rod. The rotating rod rotates through the dial plate. The fixing plate is fixedly installed on the circumferential surface of the rotating rod. The fixing rod is fixedly installed on the inner wall of the water outlet pipe. The sliding rod slides through the fixing rod. The elastic telescopic rod is fixedly installed on the circumferential surface of the inner wall of the connecting pipe. The sealing ring is fixedly installed at the movable end of the elastic telescopic rod. The L-shaped rod is fixedly installed at one end of the sealing ring close to the movable end of the elastic telescopic rod. The fixing block is fixedly installed on the top of the outer wall of the connecting pipe. The clamping block slides inside the fixing block. The long rod is fixedly installed on the top of the clamping block. When the fixing plate rotates, it contacts and pushes the sliding rod to start moving forward. The sliding rod moves forward and stretches the first spring between it and the fixing rod. After the fixing plate no longer contacts and pushes the sliding rod, the sliding rod starts to move backward and reset under the action of the first spring; Among them, a filtering device for filtering water flow is arranged on the inner wall of the water inlet pipe, and a stabilizing device for stabilizing the meter body is arranged at the bottom of the meter body. By arranging the filtering device, the water quality is ensured to be clear, and the influence of these harmful substances on the water pipe system is reduced. By arranging the stabilizing device, the meter body is ensured to always maintain the correct position during use.

[0007] According to the above technical solution, one end of the sliding rod close to the fixing plate is set as an inclined surface. A first spring is arranged between the sliding rod and the fixing rod. A second spring is arranged between the clamping block and the fixing block. By arranging the inclined surface, it is ensured that the sliding rod can be smoothly pushed. By arranging the first spring, it is ensured that the sliding rod can achieve self-resetting. By arranging the second spring, it is ensured that the clamping block can achieve self-resetting.

[0008] According to the above technical solution, the filtering device includes a filter plate, a round rod, a scraping rod, a gear and a rack. The filter plate is fixedly installed on the inner wall of the water inlet pipe. The round rod rotates through the filter plate. The scraping rod is fixedly installed at one end of the round rod away from the meter body. The gear is fixedly installed at one end of the round rod away from the scraping rod. The rack is fixedly installed on the left side of the fixing plate. When the fixing plate rotates, it drives the rack to start rotating. The rack rotates and contacts and drives the gear to start rotating. The gear rotates and drives the round rod to start rotating. The round rod rotates and drives the scraping rod to start rotating.

[0009] According to the above technical solution, the filtering device further includes a cavity block, a sliding plate and a push rod. The cavity block is fixedly installed at the bottom of the inner wall of the meter body. The sliding plate slides inside the cavity block. The push rod is fixedly installed on the left side of the sliding plate. When the scraping rod rotates, it contacts and drives the push rod to start moving. The push rod moves and drives the sliding plate to start moving. The sliding plate moves and pushes the water flow in the cavity block outwards.

[0010] According to the above technical solution, the scraping rod contacts the filter plate, the gear meshes with the rack, and a third spring is arranged between the sliding plate and the inner wall of the cavity block. By contacting, it is ensured that the scraping rod can clean the filter plate when rotating. By meshing, it is ensured that the rack can drive the gear to rotate when rotating. By arranging the third spring, it is ensured that the sliding plate can achieve self-resetting.

[0011] According to the above technical solution, the stabilizing device includes a first sliding column, a support disk, a ring and a convex block. The first sliding column slidably penetrates the table body. The support disk is fixedly installed at the bottom of the first sliding column. The ring is fixedly installed at the top of the first sliding column. The convex block is fixedly installed at the bottom of the fixing plate. When the fixing plate rotates, the convex block starts to rotate. The convex block rotates and contacts and pushes the ring to start moving downward. The downward movement of the ring drives the first sliding column to start moving downward. The downward movement of the first sliding column drives the support disk to start moving downward. The downward movement of the support disk supports the table body when the table body is working.

[0012] According to the above technical solution, the stabilizing device further includes a pressure rod, a second sliding column, a guard plate and an inclined plane block. The pressure rod is fixedly installed on the circumferential surface of the support disk. The second sliding column slidably penetrates the table body. The guard plate is fixedly installed at the end of the second sliding column away from the table body. The inclined plane block is fixedly installed on the side of the guard plate close to the second sliding column. When the support disk moves downward, the pressure rod starts to move downward. The downward movement of the pressure rod contacts and pushes the inclined plane block to start moving leftward. The leftward movement of the inclined plane block drives the guard plate to start moving leftward.

[0013] According to the above technical solution, the ring contacts the convex block. The surfaces of the pressure rod and the inclined plane block facing each other are both inclined planes. A fourth spring is arranged between the first sliding column and the ring. A fifth spring is arranged between the guard plate and the table body. By contacting, it is ensured that the convex block can push the ring. By arranging the inclined plane, it is ensured that the pressure rod can drive the inclined plane block when moving. By arranging the fourth spring, it is ensured that the first sliding column can achieve self-resetting. By arranging the fifth spring, it is ensured that the guard plate can achieve self-resetting.

[0014] The present invention provides a pre-payment water meter leakage detection device with split installation, having the following beneficial effects: (1)This invention can, through the leakage detection device, promptly detect leakage problems in water meters or pipeline systems, avoid unnecessary water resource waste, thereby helping users reduce water bill expenditures. At the same time, the timely feedback of the leakage detection device can help users, property management, or maintenance personnel discover the leakage point as early as possible and repair the leakage problem in a timely manner. By repeatedly pushing the sliding rod inside the connecting pipe through the fixing plate, it ensures that sediments, debris, or dirt do not accumulate in the pipeline, reduces the possibility of pipeline blockage, ensures the smooth flow of water in the pipeline, helps improve the accuracy of the water meter, seals the gap between the connecting pipe and the docking pipe by moving the sealing ring forward, effectively fills the gap between the water meter and the connecting pipe, ensures that no water leakage occurs at the water pipe connection, and prevents water from leaking out from the connection.

[0015] (2)This invention can, when water starts flowing into the water pipe, effectively remove impurities such as suspended particles, sediment, rust, and leaves in the water through the filter plate, ensure the clarity of the water quality, and reduce the impact of these harmful substances on the pipeline system. At the same time, the scraping rod rotates and contacts the filter plate to remove suspended particles, sediment, and deposits, ensuring that the filter plate remains unobstructed, thereby improving the filtration speed and efficiency, helping to extend the service life of the filter plate, and reducing the replacement cost. By moving the sliding plate to push the water flow in the cavity block outwards, it can help maintain the high-speed flow of water, avoid the deposition of particulate matter due to too slow water flow speed, reduce the accumulation of dirt on the inner wall of the pipeline, and thus keep the pipeline clean and smooth.

[0016] (3)This invention can support the meter body when the meter body is working by moving the support plate downwards, ensure that the meter body always maintains the correct position during use, avoid the meter body from tilting or shifting due to vibration, external force, or water flow fluctuations, reduce the measurement error caused by improper position of the meter body, effectively reduce the impact of external force on the meter body when the meter body is working by moving the guard plate to the left, prevent the meter body shell from cracking and internal components from being damaged, thereby extending the service life of the meter body. At the same time, the guard plate can provide protection for the meter body, reduce the direct contact between the water meter and harmful substances such as air, water, and dust, and thus improve its working stability. Description of the Drawings

[0017] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic cross-sectional view of the water outlet pipe and the leakage detection device of the present invention; Figure 3 Schematic cross-sectional view of the detection and anti-blocking mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure of part A in; Figure 5 Schematic cross-sectional view of the filtering device of the present invention; Figure 6For the present invention Figure 5 Schematic enlarged view of part B structure in the present invention; Figure 7 Schematic cross-sectional view of the stabilizing device structure of the present invention; Figure 8 Schematic cross-sectional view of the pressure rod and inclined plane block structure of the present invention.

[0018] In the figure: 1, meter body; 2, water inlet pipe; 3, water outlet pipe; 4, connecting pipe; 5, dial; 6, leakage detection device; 7, rotating rod; 8, fixing plate; 9, fixing rod; 10, sliding rod; 11, elastic telescopic rod; 12, sealing ring; 13, L-shaped rod; 14, fixing block; 15, clamping block; 16, long rod; 171, filter plate; 172, round rod; 173, scraping rod; 174, gear; 175, rack; 176, cavity block; 177, sliding plate; 178, push rod; 181, first sliding column; 182, support plate; 183, ring; 184, convex block; 185, pressure rod; 186, second sliding column; 187, protection plate; 188, inclined plane block. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-8 , one embodiment of the present invention is: a pre-payment water meter leakage detection device with split installation, including a meter body 1, a water inlet pipe 2 is fixedly installed on the back of the meter body 1, a water outlet pipe 3 is fixedly installed on the front of the meter body 1, a connecting pipe 4 is fixedly installed on the front of the water outlet pipe 3, a dial 5 is fixedly installed on the top of the meter body 1, a leakage detection device 6 is arranged on the inner wall of the water outlet pipe 3, and a detection and anti-blocking mechanism is arranged inside the water outlet pipe 3; Among them, the anti-blocking detection mechanism includes a rotating rod 7, a fixing plate 8, a fixing rod 9, a sliding rod 10, an elastic telescopic rod 11, a sealing ring 12, an L-shaped rod 13, a fixing block 14, a clamping block 15 and a long rod 16. The rotating rod 7 rotates through the dial 5. The fixing plate 8 is fixedly installed on the circumferential surface of the rotating rod 7. The fixing rod 9 is fixedly installed on the inner wall of the water outlet pipe 3. The sliding rod 10 slides through the fixing rod 9. The elastic telescopic rod 11 is fixedly installed on the circumferential surface of the inner wall of the connecting pipe 4. The sealing ring 12 is fixedly installed at the movable end of the elastic telescopic rod 11. The L-shaped rod 13 is fixedly installed at one end of the sealing ring 12 close to the movable end of the elastic telescopic rod 11. The fixing block 14 is fixedly installed at the top of the outer wall of the connecting pipe 4. The clamping block 15 is slidably installed inside the fixing block 14. The long rod 16 is fixedly installed at the top of the clamping block 15. By repeatedly pushing the sliding rod 10 to move back and forth inside the connecting pipe 4 through the fixing plate 8, it is ensured that sediments, sundries or dirt will not accumulate in the pipeline, reducing the possibility of pipeline blockage, ensuring the smooth flow of water in the pipeline, and helping to improve the accuracy of the water meter.

[0021] One end of the sliding rod 10 close to the fixing plate 8 is provided with an inclined surface. A first spring is arranged between the sliding rod 10 and the fixing rod 9. A second spring is arranged between the clamping block 15 and the fixing block 14. By setting the inclined surface, it is ensured that the sliding rod 10 can be smoothly pushed. By setting the first spring, it is ensured that the sliding rod 10 can achieve self-reset. By setting the second spring, it is ensured that the clamping block 15 can achieve self-reset.

[0022] During the operation of this embodiment: First, before installing the meter body 1, the staff checks whether the working state of the meter body 1 is normal. After confirming that there is no problem, the meter body 1 is installed at the designated position. The water inlet is docked with the water inlet pipe 2, and the water outlet is docked with the water outlet pipe 3. After the docking is completed, the water valve is opened to start water supply. The water flow impacts the fixed plate 8 inside the meter body 1, and the fixed plate 8 drives the rotating rod 7 to start rotating. The rotation of the rotating rod 7 drives the pointer to rotate, and the rotation of the pointer shows the reading on the dial 5, so that the staff can know the amount of water consumption. At the same time, after the water flow passes through the meter body 1, it impacts the leakage detection device 6. The leakage detection device 6 judges whether the current meter body 1 is working properly and whether there is leakage through the impact of the water flow and the magnitude of the water pressure. Through the leakage detection device, the leakage problem in the water meter or pipeline system can be detected in time, avoiding unnecessary waste of water resources, thereby helping users reduce water bills. At the same time, the timely feedback of the leakage detection device can help users, property management or maintenance personnel discover the leakage point as early as possible and repair the leakage problem in time. While the fixed plate 8 rotates, it contacts and pushes the sliding rod 10 to start moving forward. The forward movement of the sliding rod 10 stretches the first spring between the sliding rod 10 and the fixed rod 9. After the fixed plate 8 no longer contacts and pushes the sliding rod 10, the sliding rod 10 starts to move backward and reset under the action of the first spring. By the repeated pushing of the fixed plate 8 on the sliding rod 10 to move repeatedly inside the connecting pipe 4, it is ensured that sediments, debris or dirt will not accumulate in the pipeline, reducing the possibility of pipeline blockage and ensuring the smooth flow of water in the pipeline, which helps to improve the accuracy of the water meter. While the sliding rod 10 moves forward, it contacts and pushes the L-shaped rod 13 to start moving forward. The forward movement of the L-shaped rod 13 drives the sealing ring 12 to start moving forward. When it needs to be disassembled, the staff manually pulls the long rod 16, so that the long rod 16 drives the block 15 to move upward. After the block 15 moves upward to release the restriction on the sealing ring 12, the sealing ring 12 starts to move and reset under the action of the movable end of the elastic telescopic rod 11. After the sealing ring 12 moves forward and the block 15 is no longer restricted, it starts to move downward under the action of the second spring. Subsequently, the sealing ring 12 starts to reset under the drive of the movable end of the elastic telescopic rod 11 and catches the block 15, so that the sealing ring 12 is always fixed between the connecting pipe 4 and the docking pipe during operation. The forward movement of the sealing ring 12 seals the gap between the connecting pipe 4 and the docking pipe, effectively filling the gap between the water meter and the connecting pipe 4 and ensuring that there is no water leakage at the water pipe connection, preventing water from leaking out from the connection point.

[0023] Please refer to Figures 1-8 , on the basis of the above embodiment, in another embodiment of the present invention, a filtering device for filtering the water flow is provided on the inner wall of the water inlet pipe 2, and a stabilizing device for stabilizing the meter body 1 is provided at the bottom of the meter body 1. By setting the filtering device, the water quality is ensured to be clear, and the influence of these harmful substances on the pipeline system is reduced. By setting the stabilizing device, it is ensured that the meter body 1 always maintains the correct position during use.

[0024] The filtering device includes a filter plate 171, a round rod 172, a scraping rod 173, a gear 174 and a rack 175. The filter plate 171 is fixedly installed on the inner wall of the water inlet pipe 2. The round rod 172 rotatably penetrates the filter plate 171. The scraping rod 173 is fixedly installed at one end of the round rod 172 away from the main body 1. The gear 174 is fixedly installed at one end of the round rod 172 away from the scraping rod 173. The rack 175 is fixedly installed on the left side of the fixing plate 8. When water starts to enter through the water pipe, the filter plate 171 can effectively remove impurities such as suspended particles, sediment, rust, and leaves in the water, ensuring clear water quality and reducing the impact of these harmful substances on the water pipe system. At the same time, the scraping rod 173 rotates and contacts the filter plate 171 to remove suspended particles, sediment, and deposits, ensuring that the filter plate 171 remains unobstructed, thereby increasing the filtering speed and efficiency, helping to extend the service life of the filter plate 171, and reducing the replacement cost.

[0025] The filtering device further includes a cavity block 176, a sliding plate 177 and a push rod 178. The cavity block 176 is fixedly installed at the bottom of the inner wall of the main body 1. The sliding plate 177 is slidably installed on the inner wall of the cavity block 176. The push rod 178 is fixedly installed on the left side of the sliding plate 177. By moving the sliding plate 177, the water flow in the cavity block 176 is pushed outwards, which can help maintain the high-speed flow of the water, prevent particulate matter from depositing due to too slow water flow speed, reduce the accumulation of dirt on the inner wall of the pipeline, and thus keep the pipeline clean and smooth.

[0026] The scraping rod 173 contacts the filter plate 171, the gear 174 meshes with the rack 175, and a third spring is provided between the sliding plate 177 and the inner wall of the cavity block 176. By the contact, it is ensured that the scraping rod 173 can clean the filter plate 171 when rotating. By the meshing, it is ensured that the rack 175 can drive the gear 174 to rotate when rotating. By providing the third spring, it is ensured that the sliding plate 177 can achieve self-resetting.

[0027] The stabilizing device includes a first sliding column 181, a support disk 182, a ring 183 and a convex block 184. The first sliding column 181 slidably penetrates the main body 1. The support disk 182 is fixedly installed at the bottom of the first sliding column 181. The ring 183 is fixedly installed at the top of the first sliding column 181. The convex block 184 is fixedly installed at the bottom of the fixing plate 8. By the downward movement of the support disk 182, the main body 1 is supported when the main body 1 is working, ensuring that the main body 1 always maintains the correct position during use, avoiding the inclination or displacement of the main body 1 due to vibration, external force or water flow fluctuation, and reducing the measurement error caused by the improper position of the main body 1.

[0028] The stabilizing device further includes a pressure rod 185, a second sliding column 186, a guard plate 187, and an inclined plane block 188. The pressure rod 185 is fixedly installed on the circumferential surface of the support disk 182. The second sliding column 186 slidably penetrates through the meter body 1. The guard plate 187 is fixedly installed at one end of the second sliding column 186 away from the meter body 1. The inclined plane block 188 is fixedly installed on one side of the guard plate 187 close to the second sliding column 186. By moving the guard plate 187 to the left, the influence of external forces on the meter body 1 can be effectively reduced during the operation of the meter body 1, preventing the outer shell of the meter body 1 from cracking and the internal components from being damaged, thereby prolonging the service life of the meter body 1. At the same time, the guard plate 187 can provide protection for the meter body 1, reducing the direct contact between the water meter and harmful substances such as air, moisture, and dust, thereby improving its working stability.

[0029] The ring 183 contacts the convex block 184. The surfaces of the pressure rod 185 and the inclined plane block 188 that are close to each other are both provided as inclined planes. A fourth spring is provided between the first sliding column 181 and the ring 183. A fifth spring is provided between the guard plate 187 and the meter body 1. By the contact, it is ensured that the convex block 184 can push the ring 183. By setting the inclined planes, it is ensured that the pressure rod 185 can drive the inclined plane block 188 when moving. By setting the fourth spring, it is ensured that the first sliding column 181 can achieve self-resetting. By setting the fifth spring, it is ensured that the guard plate 187 can achieve self-resetting.

[0030] During the operation of this embodiment: While the fixed plate 8 rotates, it drives the rack 175 to start rotating. The rack 175 rotates and contacts to drive the gear 174 to start rotating. The gear 174 rotates to drive the round rod 172 to start rotating. The round rod 172 rotates to drive the scraping rod 173 to start rotating. When water starts to enter the water pipe, the filter plate 171 can effectively remove impurities such as suspended particles, sediment, rust, and leaves in the water, ensuring clear water quality and reducing the influence of these harmful substances on the water pipe system. At the same time, the scraping rod 173 rotates and contacts the filter plate 171 to remove suspended particles, sediment, and deposits, ensuring that the filter plate 171 remains unobstructed, thereby improving the filtering speed and efficiency, helping to prolong the service life of the filter plate 171, and reducing the replacement cost. While the scraping rod 173 rotates, it contacts and drives the push rod 178 to start moving. The push rod 178 moves to drive the sliding plate 177 to start moving. The sliding plate 177 moves to push the water flow in the cavity block 176 outwards, which can help maintain the high-speed flow of the water flow, avoid the deposition of particulate matter due to too slow water flow speed, and reduce the accumulation of dirt on the inner wall of the pipeline, thereby keeping the pipeline clean and smooth.

[0031] While the fixing plate 8 rotates, it drives the convex block 184 to start rotating. The rotating convex block 184 contacts and pushes the ring 183 to start moving downward. The downward movement of the ring 183 drives the first sliding column 181 to start moving downward. The downward movement of the first sliding column 181 drives the support plate 182 to start moving downward. When the support plate 182 moves downward, it supports the meter body 1 during the operation of the meter body 1, ensuring that the meter body 1 always maintains the correct position during use, avoiding tilting or displacement of the meter body 1 due to vibration, external force or water flow fluctuation, and reducing the measurement error caused by the improper position of the meter body 1. While the support plate 182 moves downward, it drives the pressure rod 185 to start moving downward. The downward movement of the pressure rod 185 contacts and pushes the inclined plane block 188 to start moving leftward. The leftward movement of the inclined plane block 188 drives the guard plate 187 to start moving leftward. When the guard plate 187 moves leftward, it can effectively reduce the influence of external force on the meter body 1 during the operation of the meter body 1, prevent the shell of the meter body 1 from cracking and the internal components from being damaged, thereby extending the service life of the meter body 1. At the same time, the guard plate 187 can provide protection for the meter body 1, reducing the direct contact between the water meter and harmful substances such as air, moisture, and dust, thereby improving its working stability.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prepaid water meter leakage detection device for a split installation, comprising a meter body (1), characterized in that: A water inlet pipe (2) is fixedly mounted on the back of the meter body (1), a water outlet pipe (3) is fixedly mounted on the front of the meter body (1), a connecting pipe (4) is fixedly mounted on the front of the water outlet pipe (3), a dial (5) is fixedly mounted on the top of the meter body (1), a water leakage detection device (6) is arranged on the inner wall of the water outlet pipe (3), and a detection and anti-blocking mechanism is arranged inside the water outlet pipe (3); The detection and anti-blocking mechanism comprises a rotating rod (7), a fixing plate (8), a fixing rod (9), a sliding rod (10), an elastic telescopic rod (11), a sealing ring (12), an L-shaped rod (13), a fixing block (14), a clamping block (15) and a long rod (16); the rotating rod (7) rotates and passes through the dial (5); the fixing plate (8) is fixedly mounted on the circumferential surface of the rotating rod (7); the fixing rod (9) is fixedly mounted on the inner wall of the water outlet pipe (3); and the sliding rod (10) slides and passes through the fixing rod (9) ), the elastic telescopic rod (11) is fixedly mounted on the circumferential surface of the inner wall of the connecting tube (4), the sealing ring (12) is fixedly mounted on the movable end of the elastic telescopic rod (11), the L-shaped rod (13) is fixedly mounted on one end of the sealing ring (12) close to the movable end of the elastic telescopic rod (11), the fixing block (14) is fixedly mounted on the top of the outer wall of the connecting tube (4), the clamping block (15) is slidably mounted inside the fixing block (14), and the long rod (16) is fixedly mounted on the top of the clamping block (15); Wherein, a filtering device for filtering water flow is provided on the inner wall of the water inlet pipe (2), and a stabilizing device for stabilizing the meter body (1) is provided on the bottom of the meter body (1).

2. A split-installation prepaid water meter leakage detection device according to claim 1, characterized in that: One end of the slide bar (10) close to the fixed plate (8) is arranged as an inclined surface, a first spring is arranged between the slide bar (10) and the fixed bar (9), and a second spring is arranged between the clamping block (15) and the fixed block (14).

3. A split-installation prepaid water meter leakage detection device according to claim 2, characterized in that: The filtering device comprises a filter plate (171), a round rod (172), a scraper rod (173), a gear (174) and a rack (175); the filter plate (171) is fixedly mounted on the inner wall of the water inlet pipe (2); the round rod (172) rotates and penetrates the filter plate (171); the scraper rod (173) is fixedly mounted on an end of the round rod (172) away from the meter body (1); the gear (174) is fixedly mounted on an end of the round rod (172) away from the scraper rod (173); and the rack (175) is fixedly mounted on the left side of the fixed plate (8).

4. A split-installation prepaid water meter leakage detection device according to claim 3, characterized in that: The filtering device further comprises a cavity block (176), a slide plate (177) and a push rod (178); the cavity block (176) is fixedly mounted on the bottom of the inner wall of the meter body (1); the slide plate (177) is slidably mounted on the inner wall of the cavity block (176); and the push rod (178) is fixedly mounted on the left side of the slide plate (177).

5. A split-installation prepaid water meter leakage detection device according to claim 4, characterized in that: The scraper rod (173) is in contact with the filter plate (171), the gear (174) is meshed with the rack (175), and a spring three is provided between the slide plate (177) and the inner wall of the cavity block (176).

6. A split-installation prepaid water meter leakage detection device according to claim 5, characterized in that: The stabilizing device comprises a sliding column (181), a support plate (182), a circular ring (183) and a protrusion (184); the sliding column (181) slides through the watch body (1); the support plate (182) is fixedly mounted on the bottom of the sliding column (181); the circular ring (183) is fixedly mounted on the top of the sliding column (181); and the protrusion (184) is fixedly mounted on the bottom of the fixing plate (8).

7. A split-installation prepaid water meter leakage detection device according to claim 6, characterized in that: The stabilizing device further comprises a pressure rod (185), a second sliding column (186), a guard plate (187) and an inclined surface block (188); the pressure rod (185) is fixedly mounted on the circumferential surface of the support plate (182); the second sliding column (186) slides through the meter body (1); the guard plate (187) is fixedly mounted on an end of the second sliding column (186) away from the meter body (1); and the inclined surface block (188) is fixedly mounted on a side of the guard plate (187) close to the second sliding column (186).

8. A split-installation prepaid water meter leakage detection device according to claim 7, characterized in that: The circular ring (183) is in contact with the protrusion (184); the surfaces of the pressure rod (185) and the inclined surface block (188) that are close to each other are both arranged as inclined surfaces; a spring four is arranged between the sliding column one (181) and the circular ring (183); and a spring five is arranged between the guard plate (187) and the watch body (1).

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