Outdoor water meter with protective structure

Abstract

The utility model relates to the field of water meters, and discloses an outdoor water meter with a protective structure, which comprises a protective heat preservation shell, a protective heat preservation shell cover, a water meter body, a clamping mechanism, a supporting mechanism, a heating mechanism and a water leakage detection mechanism, the top of the protective heat preservation shell is of an opening structure, and the protective heat preservation shell cover is arranged at the top of the protective heat preservation shell; the water meter body is arranged in the protective heat preservation shell, the clamping mechanism is arranged in the protective heat preservation shell, the clamping mechanism is used for locking and fixing the protective heat preservation shell cover to the top of the protective heat preservation shell, and the water inlet end of the water meter body is detachably and fixedly connected with a water inlet pipeline. The water meter has the following advantages and effects that whether the water meter body leaks water or not can be effectively detected, the two electromagnetic one-way valves can be closed in time after the water leakage phenomenon occurs, an alarm is given out, more water leakage can be prevented, and the purpose of timely stopping loss is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of water meters, and in particular to an outdoor water meter with a protective structure. Background Art

[0002] A water meter is an instrument for measuring water flow. The main function of a water meter is to measure the amount of water flowing through a pipe. It is usually used in household, commercial or industrial water places. It records the cumulative flow of water through an internal measuring mechanism, thereby helping users calculate water consumption, control water consumption and save water resources. In addition, the water meter can also help water fee collection units accurately understand the water consumption of residents or enterprises, and avoid cost problems caused by inaccurate calculations. After searching, the patent document with the authorization announcement number CN217005939U announced an outdoor water meter with a protective structure, including a protective shell, a contoured cavity is arranged inside the protective shell, and the contoured cavity can accommodate a water meter. The protective shell includes a first shell and a second shell, and the first shell is rotatably connected to the second shell. The protective shell is also provided with a locking device, which can connect and fix the first shell to the second shell, and the protective shell has at least two states; namely, an open state and a locked state, which can be used to connect and protect the water meter. By setting up two separate shells, the protection of conventional water meters is completed, and the separate design can ensure safety and convenience. The locking device used for fixing can complete the disassembly and installation of the protective shell without the aid of tools, which is more flexible to use.

[0003] In actual use, it is found that the above scheme still has at least the following shortcomings: when the water meter is installed outdoors, the connection between the water inlet pipe and the water outlet pipe and the outdoor water meter is the most prone to leakage, and thus it is impossible to effectively detect and determine whether the outdoor water meter has a leak. When the outdoor water meter leaks, people cannot know it in time, resulting in water loss and waste of water resources. Therefore, we propose an outdoor water meter with a protective structure to solve the above problem. Utility Model Content

[0004] The purpose of this application is to provide an outdoor water meter with a protective structure, which can effectively detect whether the water meter body is leaking, and can promptly close two electromagnetic one-way valves and sound an alarm after the leakage occurs, thereby preventing further water leakage and achieving the effect of timely stopping the loss.

[0005] The above technical purpose of the present application is achieved through the following technical solutions: an outdoor water meter with a protective structure, including a protective insulation shell, a protective insulation shell cover, a water meter body, a clamping mechanism, a supporting mechanism, a heating mechanism and a water leakage detection mechanism, the top of the protective insulation shell is an open structure, the protective insulation shell cover is arranged on the top of the protective insulation shell, the water meter body is arranged inside the protective insulation shell, the clamping mechanism is arranged in the protective insulation shell, the clamping mechanism is used to lock and fix the protective insulation shell cover to the top of the protective insulation shell, the water inlet end of the water meter body is detachably fixedly connected with a water inlet pipe, and the water outlet end of the water meter body is detachably fixedly connected with a water outlet pipe. There is a water outlet pipe, and electromagnetic one-way valves are fixedly installed on the water inlet pipe and the water outlet pipe. First through holes are opened on the left and right side walls of the protective thermal insulation shell. One end of the water inlet pipe away from the water meter body and one end of the water outlet pipe away from the water meter body respectively pass through the corresponding first through holes. A supporting mechanism is arranged on the bottom inner wall of the protective thermal insulation shell, and the supporting mechanism is used to support the water meter body. A heating mechanism is arranged in the protective thermal insulation shell, and the heating mechanism is used to heat the inside of the protective thermal insulation shell. A water leakage detection mechanism is arranged at the bottom of the protective thermal insulation shell, and the water leakage detection mechanism is used to detect water leakage of the water meter body and the connection between the water meter body and the water inlet pipe and the water outlet pipe.

[0006] The present application is further configured as follows: the supporting mechanism includes a support plate and support columns, the number of the support columns is set to two, the two support columns are fixedly mounted on the bottom inner wall of the protective insulation outer shell, the bottom surface of the support plate is fixedly connected to the top ends of the two support columns, and the bottom of the water meter body is in contact with the top surface of the support plate.

[0007] The present application is further configured as follows: the heating mechanism includes an electric heating tube and a temperature sensor. There are two electric heating tubes, both of which are fixedly mounted on the top of the support plate, and the temperature sensor is fixedly mounted on the rear inner wall of the protective insulation shell.

[0008] The present application is further configured as follows: the clamping mechanism includes two fixed blocks, two push rods, two push handles, two L-shaped clamping rods and two springs, the two fixed blocks are fixedly mounted on the bottom surface of the protective insulation shell cover, a clamping groove is opened on the side where the two fixed blocks are close to each other, and second through holes are opened on the left and right side walls of the protective insulation shell, the ends of the two push rods close to each other respectively pass through the corresponding second through holes, the two push rods are respectively located under the corresponding fixed blocks, the two push handles are respectively fixedly mounted on the ends of the two push rods away from each other, the two L-shaped clamping rods are respectively fixedly mounted on the ends of the two push rods close to each other, one end of the two L-shaped clamping rods are respectively slidably mounted in the corresponding clamping grooves, the ends of the two springs close to each other are respectively fixedly connected to the corresponding L-shaped clamping rods, and the ends of the two springs away from each other are respectively fixedly connected to the left inner wall and the right inner wall of the protective insulation shell.

[0009] The present application is further configured as follows: a first sealing ring is fixedly installed in the second through hole, and the push rod is slidably and sealingly matched with the second through hole through the first sealing ring.

[0010] The present application is further configured as follows: the water leakage detection mechanism includes an insulation detection box, an insulation sheet, two conductive sheets, a controller and a wireless alarm transmitter; the insulation detection box is detachably fixedly mounted on the bottom of the protective thermal insulation shell; a drainage hole is provided at the bottom center of the protective thermal insulation shell; a detection cavity and an installation cavity are provided in the insulation detection box; the tops of the detection cavity and the installation cavity are both open structures; the drainage hole is connected to the detection cavity; the insulation sheet is fixedly mounted in the detection cavity; a plurality of water-permeable holes are provided in an array on the insulation sheet; the two conductive sheets are fixedly mounted on the bottom of the insulation sheet; the controller and the wireless alarm transmitter are fixedly mounted in the installation cavity; and the transmitting end of the wireless alarm transmitter extends outside the insulation detection box.

[0011] The present application is further configured as follows: the bottom inner wall of the insulating sheet is an inclined surface structure, and the height of the bottom inner wall of the insulating sheet gradually decreases from the periphery to the middle.

[0012] The present application is further configured as follows: a second sealing ring is fixedly installed in each of the two first through holes, and the water inlet pipe and the water outlet pipe are respectively slidably sealed with the corresponding first through holes through the second sealing rings.

[0013] The present application includes at least one of the following beneficial technical effects:

[0014] 1. The present application utilizes a clamping mechanism consisting of two fixing blocks, two push rods, two push handles, two L-shaped clamping rods and two springs to facilitate the quick and secure installation and fixing of the protective insulation shell cover on the top of the protective insulation shell, thereby isolating and insulating the water meter body, thereby extending the life of the water meter body when used outdoors, and facilitating the quick removal of the protective insulation shell cover from the top of the protective insulation shell, so as to facilitate the inspection and maintenance of the water meter body.

[0015] 2. This application utilizes a water leakage detection mechanism consisting of an insulation detection box, an insulation sheet, two conductive sheets, a controller and a wireless alarm transmitter. When the water meter body is installed outdoors for use, it can effectively detect whether there is a water leakage in the water meter body. After the leakage occurs, the two electromagnetic one-way valves can be closed in time and an alarm can be sounded, thereby preventing more water leakage and achieving the purpose of stopping the loss in time.

[0016] 3. This application utilizes a heating mechanism composed of an electric heating tube and a temperature sensor, and cooperates with the controller to more effectively insulate the water meter body and prevent the water meter body from freezing and cracking in low outdoor temperatures.

[0017] 4. The present application utilizes a support mechanism consisting of a support plate and a support column to support the water meter body, thereby improving the stability of the water meter body in the protective insulation shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0020] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the insulating sheet.

[0023] Figure 5 It is a control block diagram of this embodiment.

[0024] In the figure, 1. protective insulation shell; 2. protective insulation shell cover; 3. water meter body; 4. water inlet pipe; 5. water outlet pipe; 6. first through hole; 7. electromagnetic one-way valve; 8. support plate; 9. support column; 10. electric heating tube; 11. temperature sensor; 12. fixing block; 13. slot; 14. second through hole; 15. push rod; 16. push handle; 17. L-shaped clamping rod; 18. spring; 19. drain hole; 20. insulation detection box; 21. insulation sheet; 22. conductive sheet; 23. controller; 24. wireless alarm transmitter; 25. water permeable hole. DETAILED DESCRIPTION

[0025] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The present application provides an outdoor water meter with a protective structure, including a protective heat-insulating shell 1, a protective heat-insulating shell cover 2, a water meter body 3, a clamping mechanism, a supporting mechanism, a heating mechanism and a water leakage detection mechanism, wherein:

[0027] The top of the protective insulation shell 1 is an open structure, the protective insulation shell cover 2 is arranged on the top of the protective insulation shell 1, the protective insulation shell cover 2 is used to seal the top opening of the protective insulation shell 1, the water meter body 3 is arranged inside the protective insulation shell 1, and the protective insulation shell cover 2 and the protective insulation shell 1 are used together to isolate and insulate the water meter body 3. The clamping mechanism is arranged in the protective insulation shell 1, and the clamping mechanism is used to lock and fix the protective insulation shell cover 2 on the top of the protective insulation shell 1. The above-mentioned clamping mechanism includes two fixing blocks 12, two push rods 15, two push handles 16, two L-shaped clamping rods 17 and two springs 18. The two fixing blocks 12 are fixedly installed on the bottom surface of the protective insulation shell cover 2. A card slot 13 is provided on the side where the two fixing blocks 12 are close to each other, and a second through hole 14 is provided on the left and right side walls of the protective heat-insulating shell 1. The ends of the two push rods 15 close to each other respectively penetrate the corresponding second through holes, and the two push rods 15 are respectively located below the corresponding fixed blocks 12. The two push handles 16 are respectively fixedly installed on the ends of the two push rods 15 away from each other, and the two L-shaped clamping rods 17 are respectively fixedly installed on the ends of the two push rods 15 close to each other. One end of the two L-shaped clamping rods 17 is respectively slidably installed in the corresponding card slot 13, and the ends of the two springs 18 close to each other are respectively fixedly connected to the corresponding L-shaped clamping rods 17, and the ends of the two springs 18 away from each other are respectively connected to the left inner wall and the right inner wall of the protective heat-insulating shell 1. The side inner wall is fixedly connected, and the protective insulation shell cover 2 can be firmly fixed on the top of the protective insulation shell 1 by using two L-shaped clamping rods 17 to respectively cooperate with the corresponding clamping grooves 13. The push rod 15 can be controlled to drive the L-shaped clamping rod 17 to automatically reset by using the elastic force of the spring 18. The push rod 15 and the L-shaped clamping rod 17 can be pushed to move by using the push handle 16. The water inlet end of the water meter body 3 is detachably fixedly connected with the water inlet pipe 4, and the water outlet end of the water meter body 3 is detachably fixedly connected with the water outlet pipe 5. The left and right side walls of the protective insulation shell 1 are both provided with first through holes 6. The end of the water inlet pipe 4 away from the water meter body 3 and the end of the water outlet pipe 5 away from the water meter body 3 respectively penetrate the corresponding first through holes 6. The water inlet pipe 4 and the water outlet pipe 5 Both are used to transport water. The water transported in the water inlet pipe 4 enters the water meter body 3 and is then transported away through the water outlet pipe 5. Two electromagnetic one-way valves 7 can be used to block the inside of the water inlet pipe 4 and the inside of the water outlet pipe 5 respectively. The supporting mechanism is arranged on the bottom inner wall of the protective heat-insulating shell 1. The supporting mechanism is used to support the water meter body 3. The above-mentioned supporting mechanism includes a support plate 8 and a support column 9. The number of the support columns 9 is set to two. The two support columns 9 are fixedly installed on the bottom inner wall of the protective heat-insulating shell 1. The bottom surface of the support plate 8 is fixedly connected to the top ends of the two support columns 9. The bottom of the water meter body 3 contacts the top surface of the support plate 8. The water meter body 3 can be supported by the cooperation of the support plate 8 and the two support columns 9.

[0028] Through the above structure, the outdoor water meter with a protective structure provided by the present application is convenient for quickly and firmly installing and fixing the protective insulation shell cover 2 on the top of the protective insulation shell 1 during use, so that the water meter body 3 can be isolated and insulated for protection, and the protective insulation shell cover 2 can be quickly disassembled and removed from the top of the protective insulation shell 1 to facilitate the inspection and maintenance of the water meter body 3. During the specific operation, the two push handles 16 are pushed to move in a direction close to each other, and the two push handles 16 drive the corresponding push rods 15 and L-shaped clamping rods 17 to move. At this time, the two springs 18 are gradually stretched to generate elastic force, so that when one end of the two L-shaped clamping rods 17 slides out of the corresponding clamping grooves 13 respectively, the water meter body 3 is released. In order to fix the protective insulation shell cover 2, the protective insulation shell cover 2 can be quickly disassembled and removed to facilitate the subsequent inspection and maintenance of the water meter body 3. After the inspection and maintenance of the water meter body 3, first push the two push handles 16 to move in a direction close to each other, and the two push handles 16 drive the corresponding push rods 15 and L-shaped clamping rods 17 to move. At this time, the two springs 18 are gradually stretched to generate elastic force, and then the protective insulation shell cover 2 is installed back on the protective insulation shell 1, and then the two push handles 16 are loosened. Using the elastic force of the two springs 18, one end of the two L-shaped clamping rods 17 can be controlled to be tightly inserted into the corresponding clamping grooves 13 respectively, that is, the protective insulation shell cover 2 is quickly and firmly fixed on the protective insulation shell 1.

[0029] In this embodiment, a heating mechanism is arranged in the protective heat-insulating shell 1, and the heating mechanism is used to heat the inside of the protective heat-insulating shell 1. The above-mentioned heating mechanism includes an electric heating tube 10 and a temperature sensor 11. The number of the electric heating tubes 10 is two, and the two electric heating tubes 10 are fixedly installed on the top of the support plate 8. The temperature sensor 11 is fixedly installed on the rear inner wall of the protective heat-insulating shell 1. The electric heating tube 10 is used to heat the internal space of the protective heat-insulating shell 1, so that the water meter body 3 is not easily frozen outdoors at low temperatures. The temperature sensor 11 is used to detect the temperature of the internal space of the protective heat-insulating shell 1. The water inlet pipe 4 and the water outlet pipe 5 are both fixedly installed with an electromagnetic one-way valve 7. The water leakage detection mechanism is arranged at the bottom of the protective heat-insulating shell 1. The water leakage detection mechanism is used to detect the water meter body 3 and the water leakage at the connection between the water meter body 3 and the water inlet pipe 4 and the water outlet pipe 5. The water leakage detection mechanism includes an insulation detection box 20, an insulation sheet 21, two conductive sheets 22, a controller 23 and a wireless alarm transmitter 24. The insulation detection box 20 is detachably fixedly installed at the bottom of the protective heat-insulating shell 1. A drainage hole 19 is provided at the bottom center of the protective heat-insulating shell 1. A The detection cavity and the installation cavity, the tops of the detection cavity and the installation cavity are both open structures, the drainage hole 19 is connected to the detection cavity, the insulating sheet 21 is fixedly installed in the detection cavity, and a plurality of water-permeable holes 25 are arranged in an array on the insulating sheet 21. Two conductive sheets 22 are fixedly installed at the bottom of the insulating sheet 21, and the two conductive sheets 22 are made of copper with good conductivity or other materials with good conductivity. The controller 23 and the wireless alarm transmitter 24 are fixedly installed in the installation cavity, and the transmitting end of the wireless alarm transmitter 24 extends to the outside of the insulation detection box 20. It should be added that the two electromagnetic one-way valves 7 and the two conductive sheets 22 , the controller 23, and the wireless alarm transmitter 24 are electrically connected to an external power supply through a wire to form a detection alarm circuit, and a wireless alarm receiver is installed in the monitoring room. The wireless alarm receiver can be used to receive the alarm command wirelessly transmitted by the wireless alarm transmitter 24, so that the wireless alarm receiver can sound an alarm to remind the staff to pay attention. The two electric heating tubes 10, the temperature sensor 11 and the controller 23 are electrically connected to an external circuit through a wire to form a monitoring circuit. Since its line connection and control method are mature technical means in the existing field, they will not be elaborated in this article.

[0030] In this embodiment, when the insulating sheet 21 is in a dry state, the two conductive sheets 22 do not have a conductive effect, and thus the detection alarm circuit will not be energized. When water adheres to the insulating sheet 21, the two conductive sheets 22 can be made conductive under the conductive effect of the water, so that the detection alarm circuit is energized. The temperature inside the protective insulation shell 1 can be detected by using the temperature sensor 11, and the detected temperature signal is transmitted to the controller 23. The controller 23 can automatically control whether the two electric heating tubes 10 are running or shut down. When the detected temperature inside the protective insulation shell 1 is lower than zero degrees, the controller 23 will issue an instruction to control the two electric heating tubes 10 to be powered on, so as to heat the internal space of the protective insulation shell 1 to prevent the water meter body 3 from freezing and cracking. When the temperature inside the protective insulation shell 1 is heated to the set appropriate temperature (for example, the set range is 10°C-20°C), the controller 23 will issue an instruction to control the two electric heating tubes 10 to be turned off, so as to more effectively insulate the water meter body 3 and prevent the water meter body 3 from freezing and cracking under low outdoor temperatures.

[0031] Through the above structure, the outdoor water meter with a protective structure provided by the present application can effectively detect whether the water meter body 3 is leaking during use, and can promptly close the two electromagnetic one-way valves 7 and sound an alarm after the leakage occurs, thereby preventing more water leakage and achieving the purpose of timely stopping the loss. In specific operation, when the water meter body 3 itself leaks or the connection between the water meter body 3 and the water inlet pipe 4 and the water outlet pipe 5 leaks, the leaked water quickly falls onto the insulating sheet 21 in the detection cavity through the drainage hole 19, and then the water is gathered on the bottom inner wall of the detection cavity through multiple permeable holes 25. At this time, since the surface of the insulating sheet 21 is adhered to by water, its own insulation performance will disappear. Or the water gathered on the bottom inner wall of the detection cavity increases until the bottom of the two conductive sheets 22 is immersed therein, and the two conductive sheets 22 use the leaked water as an electrical conductive medium to connect the detection alarm circuit, so that the controller 23 can issue an action command to control the two electromagnetic one-way valves 7 to close, and the water in the water inlet pipe 4 no longer enters the water meter body 3, and the controller 23 issues an alarm command to the wireless alarm transmitter 24, so that the alarm command is wirelessly transmitted to the wireless alarm receiver via the wireless alarm transmitter 24, and the wireless alarm receiver will sound an alarm, thereby reminding the staff that the water meter body 3 has abnormal water leakage and needs to be repaired in time, thereby preventing more water leakage and achieving the purpose of stopping the loss in time.

[0032] In this embodiment, a first sealing ring is fixedly installed in the second through hole 14, and the push rod 15 is slidably sealed with the second through hole 14 through the first sealing ring, thereby sealing the gap between the push rod 15 and the second through hole 14 to prevent water vapor and dust from entering the protective insulation shell 1.

[0033] In this embodiment, the bottom inner wall of the insulating sheet 21 is an inclined surface structure, and the height of the bottom inner wall of the insulating sheet 21 gradually decreases from the periphery to the middle, which can enable the water falling into the protective insulation shell 1 to flow into the detection cavity more quickly and ensure the speed of detection.

[0034] In this embodiment, second sealing rings are fixedly installed in the two first through holes 6, and the water inlet pipe 4 and the water outlet pipe 5 are respectively slidably sealed with the corresponding first through holes 6 through the second sealing rings, thereby sealing the gap between the water inlet pipe 4 and the first through hole 6, and also sealing the gap between the water outlet pipe 5 and the other first through hole 6, thereby preventing water vapor and dust from entering the protective insulation shell 1.

Claims

1. An outdoor water meter with a protective structure, characterized in that: The invention comprises a protective heat-insulating shell (1), a protective heat-insulating shell cover (2), a water meter body (3), a clamping mechanism, a supporting mechanism, a heating mechanism and a water leakage detection mechanism, wherein the top of the protective heat-insulating shell (1) is an open structure, the protective heat-insulating shell cover (2) is arranged on the top of the protective heat-insulating shell (1), the water meter body (3) is arranged inside the protective heat-insulating shell (1), the clamping mechanism is arranged inside the protective heat-insulating shell (1), and the clamping mechanism is used to lock and fix the protective heat-insulating shell cover (2) on the top of the protective heat-insulating shell (1). The water inlet end of the water meter body (3) is detachably fixedly connected to a water inlet pipe (4), and the water outlet end of the water meter body (3) is detachably fixedly connected to a water outlet pipe (5). The water inlet pipe (4) and the water outlet pipe (5) are both fixedly mounted with electromagnetic one-way valves (7). The left and right side walls of the protective heat-insulating housing (1) are both provided with first through holes (6), and one end of the water inlet pipe (4) away from the water meter body (3) and one end of the water outlet pipe (5) away from the water meter body (3) respectively penetrate the corresponding first through holes (6); The support mechanism is arranged on the inner wall of the bottom of the protective heat-insulating shell (1), and is used to support the water meter body (3); the heating mechanism is arranged in the protective heat-insulating shell (1), and is used to heat the inside of the protective heat-insulating shell (1); the water leakage detection mechanism is arranged at the bottom of the protective heat-insulating shell (1), and is used to detect water leakage in the water meter body (3) and at the connection between the water meter body (3) and the water inlet pipe (4) and the water outlet pipe (5).

2. The outdoor water meter with a protective structure according to claim 1, characterized in that: The support mechanism comprises a support plate (8) and a support column (9), the number of the support columns (9) is set at two, the two support columns (9) are fixedly mounted on the bottom inner wall of the protective heat-insulating outer shell (1), the bottom surface of the support plate (8) is fixedly connected to the top ends of the two support columns (9), and the bottom of the water meter body (3) is in contact with the top surface of the support plate (8).

3. The outdoor water meter with a protective structure according to claim 2, characterized in that: The heating mechanism comprises an electric heating tube (10) and a temperature sensor (11), the number of the electric heating tubes (10) being two, the two electric heating tubes (10) being fixedly mounted on the top of the support plate (8), and the temperature sensor (11) being fixedly mounted on the rear inner wall of the protective heat-insulating outer shell (1).

4. The outdoor water meter with a protective structure according to claim 1, characterized in that: The clamping mechanism comprises two fixed blocks (12), two push rods (15), two push handles (16), two L-shaped clamping rods (17) and two springs (18). The two fixed blocks (12) are fixedly mounted on the bottom surface of the protective heat-insulating shell cover (2). A clamping groove (13) is provided on the sides of the two fixed blocks (12) close to each other. Second through holes (14) are provided on the left and right side walls of the protective heat-insulating shell (1). The ends of the two push rods (15) close to each other respectively penetrate the corresponding second through holes. The two push rods (15) are respectively located on the corresponding fixed Below the fixed block (12), the two push handles (16) are respectively fixedly mounted on ends of the two push rods (15) that are away from each other, the two L-shaped clamping rods (17) are respectively fixedly mounted on ends of the two push rods (15) that are close to each other, one end of the two L-shaped clamping rods (17) are respectively slidably mounted in the corresponding clamping grooves (13), the ends of the two springs (18) that are close to each other are respectively fixedly connected to the corresponding L-shaped clamping rods (17), and the ends of the two springs (18) that are away from each other are respectively fixedly connected to the left inner wall and the right inner wall of the protective heat-insulating shell (1).

5. The outdoor water meter with a protective structure according to claim 4, characterized in that: A first sealing ring is fixedly installed in the second through hole (14), and the push rod (15) is slidably sealed in cooperation with the second through hole (14) via the first sealing ring.

6. The outdoor water meter with a protective structure according to claim 1, characterized in that: The water leakage detection mechanism comprises an insulation detection box (20), an insulation sheet (21), two conductive sheets (22), a controller (23) and a wireless alarm transmitter (24); the insulation detection box (20) is detachably fixedly mounted on the bottom of the protective heat-insulating shell (1); a drainage hole (19) is provided at the center of the bottom of the protective heat-insulating shell (1); a detection cavity and an installation cavity are provided in the insulation detection box (20); the tops of the detection cavity and the installation cavity are both open structures; the drainage hole (19) is connected to the detection cavity; the insulation sheet (21) is fixedly mounted in the detection cavity; a plurality of water-permeable holes (25) are provided in an array on the insulation sheet (21); the two conductive sheets (22) are fixedly mounted on the bottom of the insulation sheet (21); the controller (23) and the wireless alarm transmitter (24) are fixedly mounted in the installation cavity; and a transmitting end of the wireless alarm transmitter (24) extends outside the insulation detection box (20).

7. An outdoor water meter with a protective structure according to claim 6, characterized in that: The bottom inner wall of the insulating sheet (21) is an inclined surface structure, and the height of the bottom inner wall of the insulating sheet (21) gradually decreases from the periphery to the middle.

8. The outdoor water meter with a protective structure according to claim 1, characterized in that: A second sealing ring is fixedly installed in each of the two first through holes (6), and the water inlet pipe (4) and the water outlet pipe (5) are respectively slidably sealed with the corresponding first through holes (6) via the second sealing rings.

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