A detachable intelligent fire hydrant

Abstract

The present invention relates to the field of fire hydrants, and in particular to a detachable intelligent fire hydrant that can realize an intelligent detection function through structural improvement of a conventional fire hydrant and has low investment cost, comprising a bend base, a valve body, a bolt body, a copper nut, a valve stem, a connecting rod, a valve disc, an anti-adaptation sleeve, a ground bolt wrench, a water outlet pipe, a large water cover, a signal box, a sensor mounting seat and a pressure relief device, wherein both ends of the bend base are provided with a first flange, both ends of the valve body are provided with a second flange, the lower end of the bolt body is provided with a third flange, the middle part of the sensor mounting seat is provided with a flow channel, the peripheral side of the flow channel is provided with a through hole, the side of the sensor mounting seat is provided with a detection port and a connecting port, a flow meter is provided at the detection port, the sensor mounting seat is distributed between the bend base and the valve body, and the first flange at the upper end of the bend base and the second flange at the lower end of the valve body are locked and connected to the sensor mounting seat by passing a first bolt through the through hole, and a first pressure relief port is provided on the valve body.

Description

Technical Field

[0001] The present invention relates to the field of fire hydrants, and in particular to a detachable intelligent fire hydrant. Background Art

[0002] The applicant applied for a patent application number 202110096965.5 on January 25, 2021, which discloses a fire hydrant with a flow monitoring function, and specifically discloses a flange elbow, a valve body detachably arranged at the top of the flange elbow, a plug body detachably arranged at the top of the valve body, a copper nut arranged at the top of the plug body, a valve stem arranged on the inside of the copper nut, an anti-transfer sleeve arranged at the top of the plug body and used to sleeve the copper nut, a connecting rod detachably arranged at the bottom of the valve stem, a connecting piece detachably arranged at the bottom of the connecting rod, a valve disc arranged at the bottom of the connecting piece, a ground plug wrench arranged at the top of the valve stem, at least three water outlet pipes arranged at the top of the plug body, and a detachable A large water cover is detachably arranged on the water outlet pipe, the connecting rod can be rotatably passed through the anti-adaptation sleeve, and the plug body is provided with an anti-detachment chain connected to the large water cover; it also includes a pressure sensor arranged in the bottom of the valve disc, a sensor sealing cover arranged at the bottom of the valve disc near the outer edge, a signal box arranged on one side of the middle of the plug body, a battery arranged in the signal box, a signal circuit board assembly arranged in the signal box, a flow switch arranged in the signal box and a sealing cover detachably arranged on the side of the signal box away from the plug body, a flow meter is detachably installed in the valve body, the flow switch, flow meter, pressure sensor and battery are all electrically connected to the signal circuit board assembly, and one side of the flow switch passes through the plug body.

[0003] The above-mentioned fire hydrant is provided with a pressure sensor. When it is used, the pressure sensor converts the water pressure signal in the fire hydrant into an electrical signal and sends it to the signal circuit board assembly. The signal circuit board assembly marks the detection signal with a number and sends it to the external fire center or other management platform at regular intervals. The external fire center or other management platform can remotely obtain the water pressure data of each fire hydrant, avoiding the need for personnel to check each fire hydrant after long-term use, resulting in high costs; the flow switch and flow meter are provided, wherein the flow meter converts the water flow rate and accumulated flow in the valve body into an electrical signal and sends it to the signal circuit board assembly. The signal circuit board assembly sends the detection signal to the external fire center or other management platform. The external fire center or other management platform can check the working status of the fire hydrant according to the water pressure and water flow. When an unexpected water leakage or water pressure occurs, When the flow rate is too low or in other abnormal situations, the external fire protection center or other management platform can promptly inspect the fire hydrant through the received data information; and the flow switch sends the flow to the circuit board assembly during online measurement. When the flow value is higher or lower than the set value, the signal circuit board assembly sends the received abnormal signal to the external fire protection center or other management platform, and can issue a warning signal in time. The flow switch and flow meter are set separately, with high measurement accuracy and fast response during use. At the same time, the procurement cost is low, avoiding the high cost of purchasing a flow meter with an alarm switch. After being set separately, when one of the parts is damaged, the subsequent replacement and maintenance cost is low. The flow switch is located in the hydrant body. When the fire hydrant is not in use, there is no water in the hydrant body, and the flow switch only comes into contact with water when in use, which makes the flow switch have a longer service life and good durability.

[0004] However, since the valve body with the flow meter and the hydrant body with the signal box are newly cast and molded structures, they can be put into use directly to form a fire hydrant system with intelligent monitoring function. However, the fire hydrants that have been put into use are still conventional structures, and the intelligent monitoring function can be realized. If the intelligent detection system is realized by replacing the above-mentioned fire hydrants, the investment cost is high. Summary of the Invention

[0005] Therefore, in order to solve the above problems, the present invention provides a detachable intelligent fire hydrant which can realize intelligent detection function by improving the structure of conventional fire hydrants and has low investment cost.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A detachable intelligent fire hydrant comprises a bend base, a valve body, a bolt body, a copper nut, a valve stem, a connecting rod, a valve disc, an anti-adaptation sleeve, a ground bolt wrench, a water outlet pipe, a large water cover, a signal box, a sensor mounting seat and a pressure relief device, wherein both ends of the bend base are provided with a first flange, both ends of the valve body are provided with a second flange, the lower end of the bolt body is provided with a third flange, the middle part of the sensor mounting seat and along its axial direction are provided with a flow channel, the circumferential side of the flow channel is provided with a through hole, the side surface of the sensor mounting seat and along its radial direction are provided with paired detection ports and a connecting port, a flow meter is provided at the detection port, the sensor mounting seat is distributed between the bend base and the valve body, and the first flange at the upper end of the bend base and the second flange at the lower end of the valve body are locked and connected to the sensor mounting seat by passing a first bolt through the through hole, the valve body is provided with a first pressure relief port, the pressure relief device has a pressure relief chamber and a detection chamber, the detection chamber is connected with a first water inlet, and the detection chamber is provided A liquid level sensor is provided. The pressure relief chamber is connected to a second water inlet and a second pressure relief port. A pressure relief assembly is provided in the pressure relief chamber. The first water inlet of the pressure relief device is connected to the connecting port through a connecting pipe body, and the second water inlet of the pressure relief device is connected to the first pressure relief port. A mounting foot is provided on the outside of the signal box. The mounting foot is locked and connected to the second flange at the upper end of the valve body and the third flange at the lower end of the bolt body through a second bolt. A battery and a signal circuit board assembly are provided in the signal box. The battery, flow meter and liquid level sensor are electrically connected to the signal circuit board assembly respectively. The copper nut is provided at the upper end of the bolt body, the ground bolt wrench is provided at the upper end of the copper nut, the anti-transfer sleeve is sleeved on the copper nut, the valve stem is provided on the inner side of the copper nut, the connecting rod is provided at the lower end of the valve stem, the connecting rod passes through the anti-transfer sleeve, the valve disc is provided at the lower end of the connecting rod, and at least three water outlets are provided on the bolt body. The outlet pipe is provided at the water outlet, and the large water cover is provided on the free end of the outlet pipe.

[0008] Furthermore, the sensor mounting seat includes an integrally formed upper disk body, a lower disk body, a connecting pipe and several support seats, the upper disk body and the lower disk body are respectively provided with an upper opening and a lower opening in the middle, the upper disk body is provided with an upper connecting hole and is located on the peripheral side of the upper opening, the lower disk body is provided with a lower connecting hole and is located on the peripheral side of the lower opening, the connecting pipe connects the upper opening and the lower opening, and a flow channel is formed by the upper opening, the connecting pipe and the lower opening, the support seat is provided with a radial outer side of the connecting pipe, and is distributed between the upper disk body and the lower disk body, the support seat is provided with a middle connecting hole connecting the upper connecting hole and the lower connecting hole, and a through hole is formed by the upper connecting hole, the middle connecting hole and the lower connecting hole, and each of the detection ports and the connecting ports is provided on the connecting pipe and is distributed between the two support seats.

[0009] Furthermore, the pressure relief device includes a shell, the shell has an inner cavity, a partition is provided in the inner cavity, the inner cavity is divided into a pressure relief chamber and a detection chamber, the detection chamber is located at the lower side of the pressure relief chamber, the first water inlet is provided at the lower end of the shell, the second water inlet is provided at the side of the shell, the second pressure relief port is provided at the upper end of the shell, a pressure relief flow channel connecting the second water inlet and the second pressure relief port is provided in the pressure relief chamber, and the pressure relief assembly is provided on the pressure relief flow channel.

[0010] Furthermore, the pressure relief assembly includes a first valve seat provided on the pressure relief flow channel, a first metal ball provided on the first valve seat, and a first spring.

[0011] Furthermore, a second pressure sensor is provided at the pressure relief port, and a first electromagnet is provided on the first valve seat for magnetically attracting a first metal ball to close the pressure relief channel. The first electromagnet and the second pressure sensor are electrically connected to the signal circuit board assembly respectively.

[0012] Furthermore, an opening is provided on the partition, an auxiliary pressure relief channel connecting the first water inlet and the second pressure relief port is provided in the detection cavity, the liquid level sensor is provided in the auxiliary pressure relief channel, and an auxiliary pressure relief component is provided in the auxiliary pressure relief channel.

[0013] Furthermore, the auxiliary pressure relief assembly includes a second valve seat provided on the auxiliary pressure relief flow channel, a second metal ball provided on the second valve seat, and a second spring, wherein the elastic coefficient of the second spring is greater than the elastic coefficient of the first spring.

[0014] Furthermore, a second electromagnet for magnetically attracting the second metal ball to close the auxiliary pressure relief channel is provided on the second valve seat, and the second electromagnet is electrically connected to the signal circuit board assembly.

[0015] Furthermore, a booster pump is provided at the input end of the elbow base, and the booster pump is electrically connected to the signal circuit board assembly.

[0016] Furthermore, the mounting legs include a connecting plate distributed in parallel at the bottom of the signal box and a support plate provided at the bottom of the connecting plate. The support plate is an arc-shaped structure, and mounting holes for the second bolt to pass through are provided on the support plate and located between the two connecting plates and on the lateral outside of the two connecting plates.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are as follows: the detachable intelligent fire hydrant, by combining the characteristics of the fire hydrant of the traditional structure, designs the structure of the sensor mounting seat, the pressure relief device and the signal box, which is used to cooperate with the traditional fire hydrant for structural improvement, so that it can be incorporated into the intelligent detection system to realize intelligent management. Such a design can transform the traditional fire hydrant, avoid the problem of direct replacement, and greatly reduce the cost. Specifically, through the study of the detachable connection method between the elbow base and the valve body, the valve body and the hydrant body, and the first pressure relief port on the valve body, the detachable connection method between the elbow base and the valve body, the valve body and the hydrant body, and the first pressure relief port on the valve body, the detachable connection method between the elbow base and the valve body, the valve body and the hydrant body, and the first pressure relief port on the valve body, the detachable connection method between the elbow base and the valve body, the pressure relief device and the signal box ... , by forming a detachable connection between the designed sensor mounting seat structure and the elbow base and the valve body, and arranging sensors such as flow meters on the sensor mounting seat, and at the same time arranging a pressure relief device on the first pressure relief port and communicating with the connection port on the sensor mounting seat, and arranging a liquid level sensor in the pressure relief device, while ensuring pressure relief, it can play a role in pressure detection, and forming a detachable connection between the signal box and the valve body and the plug body, thereby avoiding structural modification of the elbow base, valve body and plug body, and utilizing the existing structural characteristics, combined with the structure and installation position of the signal box, sensor mounting seat and pressure relief device, it can Without affecting the normal function of the fire hydrant, an intelligent monitoring function is realized, which improves the convenience of rectification and reduces costs, and facilitates the intelligent transformation of the fire protection field. When in use, the water pressure signal in the fire hydrant is converted into an electrical signal by the liquid level sensor and sent to the signal circuit board assembly. The signal circuit board assembly marks the detection signal with a number and regularly sends it to an external fire center or other management platform. The external fire center or other management platform can remotely obtain the water pressure data of each fire hydrant, avoiding the need for personnel to check each fire hydrant after long-term use, which leads to high costs. The flow meter is provided, wherein the flow meter converts the water flow rate and accumulated flow in the valve body into an electrical signal and sends it to the signal circuit board assembly. The signal circuit board assembly sends the detection signal to the external fire center or other management platform. The external fire center or other management platform can monitor the working status of the fire hydrant based on the water pressure and water flow. In the event of accidental water leakage, low water pressure or other abnormal conditions, the external fire center or other management platform can promptly inspect and repair the fire hydrant based on the received data information. In addition, the structure is simple, and when one of the parts is damaged, the subsequent replacement and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the first structure of an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of the three-dimensional structure of the second structure of an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the three-dimensional structure of the second structure of an embodiment of the present invention from another perspective;

[0021] Figure 4 is a partially exploded structural diagram of a second structure of an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the three-dimensional structure of a sensor mounting base in an embodiment of the present invention;

[0023] Figure 6 is a schematic cross-sectional structural diagram of a pressure relief device according to an embodiment of the present invention;

[0024] Figure 7 is a schematic cross-sectional structural diagram of the sealing assembly in an embodiment of the present invention when not installed;

[0025] Figure 8 is a schematic cross-sectional view of the sealing assembly during installation according to an embodiment of the present invention;

[0026] Figure 9 is a schematic cross-sectional structural diagram of a connection assembly in an embodiment of the present invention;

[0027] Figure 10 It is a circuit module diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0029] The embodiments of the present invention are:

[0030] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 10As shown, a detachable intelligent fire hydrant includes a bend base 1, a valve body 2, a bolt body 3, a copper nut 4, a valve stem 5, a connecting rod 6, a valve disc 7, an anti-transfer sleeve 8, a ground bolt wrench 9, a water outlet pipe 10, a large water cover 11, a signal box 12, a sensor mounting seat 13 and a pressure relief device 14. Both ends of the bend base 1 are provided with a first flange 15, both ends of the valve body 2 are provided with a second flange 16, the lower end of the bolt body 3 is provided with a third flange 17, the middle part of the sensor mounting seat 13 and along its axial direction are provided with a flow channel 18, the circumferential side of the flow channel 18 is provided with a through hole 19, and the sensor mounting seat 13 is provided with a plurality of holes. The side of the seat 13 is provided with a pair of detection ports 20 and a connecting port 21 along its radial direction. A flow meter 22 is provided at the detection port 20. The sensor mounting seat 13 is distributed between the elbow base 1 and the valve body 2, and the first flange 15 at the upper end of the elbow base 1 and the second flange 16 at the lower end of the valve body 2 are locked and connected to the sensor mounting seat 13 by passing the first bolt 23 through the through hole 19. A first pressure relief port 24 is provided on the valve body 2. The pressure relief device 14 has a pressure relief chamber 141 and a detection chamber 142. The detection chamber 142 is connected to the first water inlet 143. The detection chamber 142 is provided with a There is a liquid level sensor 25, the pressure relief chamber 141 is connected to the second water inlet 144 and the second pressure relief port 145, the pressure relief chamber 141 is provided with a pressure relief assembly 26, the first water inlet 143 of the pressure relief device 14 is connected to the connecting port 21 through a connecting pipe body 27, the second water inlet 144 of the pressure relief device 26 is connected to the first pressure relief port 24, the signal box 12 is provided with a mounting foot 28, the mounting foot 28 is locked with the second flange 16 at the upper end of the valve body 2 and the third flange 17 at the lower end of the bolt body 3 by a second bolt 29, the signal box 12 is provided with a battery 30, a signal circuit board assembly Component 31, the battery 30, flow meter 22 and liquid level sensor 25 are electrically connected to the signal circuit board assembly 31 respectively, the copper nut 4 is arranged at the upper end of the bolt body 3, the ground bolt wrench 9 is arranged at the upper end of the copper nut 4, the anti-transfer sleeve 8 is sleeved on the copper nut 4, the valve stem 5 is arranged on the inner side of the copper nut 4, the connecting rod 6 is arranged at the lower end of the valve stem 5, the connecting rod 6 passes through the anti-transfer sleeve 8, the valve disc 7 is arranged at the lower end of the connecting rod 6, three water outlets 300 are provided on the bolt body 3, the water outlet pipe 10 is arranged at the water outlet 300, and the large water cover 11 is covered on the free end of the water outlet pipe 10.

[0031] The detachable intelligent fire hydrant is designed with the structure of the sensor mounting seat 13, the pressure relief device 14 and the signal box 12 by combining the characteristics of the fire hydrant with the traditional structure, so as to cooperate with the traditional fire hydrant for structural improvement, so that it can be incorporated into the intelligent detection system to realize intelligent management. Such a design can transform the traditional fire hydrant, avoid the problem of direct replacement, and greatly reduce the cost. Specifically, through the study of the detachable connection mode between the elbow base 1 and the valve body 2, the valve body 2 and the bolt body 3 on the traditional fire hydrant and the first pressure relief port 24 on the valve body 2, the sensor mounting seat 13 structure is designed. A disassembly connection is formed with the elbow base 1 and the valve body 2, and sensors such as the flow meter 22 are arranged on the sensor mounting seat 13. At the same time, the pressure relief device 14 is arranged on the first pressure relief port 24 and is communicated with the connection port 21 on the sensor mounting seat 13, and the liquid level sensor 25 is arranged in the pressure relief device 14. While ensuring pressure relief, it can play a role in pressure detection. The signal box 12 is disassembled and connected with the valve body 2 and the bolt body 3. Thus, the structural modification of the elbow base 1, the valve body 2 and the bolt body 3 is avoided. The existing mechanism characteristics are utilized, combined with the structure and installation position of the signal box 12, the sensor mounting seat 13 and the pressure relief device 14 The cooperation can realize the intelligent monitoring function without affecting the normal function of the fire hydrant, improve the convenience of rectification, thereby reducing costs and facilitating the intelligent transformation of the fire protection field; when in use, the liquid level sensor 25 is set to convert the water pressure signal in the fire hydrant into an electrical signal and send it to the signal circuit board assembly 31. The signal circuit board assembly 31 marks the detection signal with a number and sends it to the external fire center or other management platform at a regular interval. The external fire center or other management platform can remotely obtain the water pressure data of each fire hydrant, avoiding the need for personnel to check each fire hydrant after long-term use, which leads to high costs; the flow meter 22 is set, wherein the flow meter 22 converts the water flow rate and accumulated flow in the valve body 2 into an electrical signal and sends it to the signal circuit board assembly. The signal circuit board assembly 31 sends the detection signal to the external fire center or other management platform. The external fire center or other management platform can monitor the working status of the fire hydrant based on the water pressure and water flow. When an unexpected water leakage, low water pressure or other abnormal situation occurs, the external fire center or other management platform can promptly inspect the fire hydrant based on the received data information; in addition, its structure is simple, and when one of the parts is damaged, the subsequent replacement and maintenance cost is low.

[0032] And, reference Figure 5As shown, the sensor mounting seat 13 includes an integrally formed upper disc body 131, a lower disc body 132, a connecting pipe 133 and a plurality of support seats 134. The middle portions of the upper disc body 131 and the lower disc body 132 are respectively provided with an upper opening and a lower opening. An upper connecting hole is provided on the upper disc body 131 and located on the peripheral side of the upper opening. A lower connecting hole is provided on the lower disc body 132 and located on the peripheral side of the lower opening. The connecting pipe 133 connects the upper opening and the lower opening, and a flow channel 18 is formed by the upper opening, the connecting pipe 133 and the lower opening. The support seats 134 are provided with a radial outer side of the connecting pipe 133 and are distributed between the upper disc body 131 and the lower disc body 132. 4 is provided with a middle connecting hole communicating with the upper connecting hole and the lower connecting hole, and a through hole 19 is formed by the upper connecting hole, the middle connecting hole and the lower connecting hole. Each of the detection ports 20 and the connecting port 21 is provided on the connecting pipe 133 and is distributed between the two support seats 134. The detection port 20 and the connecting port 21 are provided on the side wall of the connecting pipe 133, and the supporting effect of the support seat 134 is improved, so that the structural strength is high, which can meet the locking connection between the sensor mounting seat 13 and the elbow base 1 and the valve body 2, ensure the overall strength of the fire hydrant, and ensure the sealing. At the same time, it is convenient for the installation and disassembly of the flow meter 22, convenient for maintenance and replacement, and reduce the later use cost.

[0033] It is worth noting that the flow meter 22 includes a signal transmitting end and a signal receiving end connected by a signal line. The signal transmitting end and the signal connecting end are respectively arranged at detection ports 20 distributed in pairs. The detection ports 20 distributed in pairs are located on the same straight line of the connecting pipe 133, and there are three pairs of detection ports 20 on the connecting pipe 133, that is, there are three flow meters 22, and they are distributed in various diameter areas on the same plane of the connecting pipe 133, which can improve the accuracy of detection.

[0034] refer to Figure 7 and Figure 8As shown, a sealing assembly 100 is provided between the elbow base 1 and the sensor mounting seat 13, and between the valve body 2 and the sensor mounting seat 13. The sealing assembly 100 includes a convex ring 135 provided on the upper surface of the upper disk body 131 and the lower surface of the lower disk body 132, and a sealing rubber ring 110 clamped on the convex ring 135. The sealing rubber ring 110 includes an integrally connected ring body 111, a first support portion 112, an arc-shaped connecting portion 113, an inclined portion 114 and a second support portion 115. The ring body 111 is embedded in the inner edge of the elbow base 1 or the valve body 2. The first support portion 112 is connected to the free end of the ring body 111 and is laid on the inner side edge of the first flange 15 or the second flange 16. The arc-shaped connecting portion 113 is provided at the outer end of the first support portion 112. The inclined portion 114 is provided at the free end of the arc-shaped connecting portion 113 and extends inwardly. The second support portion 115 is provided at the free end of the inclined portion 114, and the second support portion 115 is parallel to the first support portion 112, and the first support portion 112 and the second support portion 115 are spaced apart. When the elbow base 1 or the valve body 2 is connected to the sensor mounting seat 13, the convex ring 135 abuts against the second support portion 115. By tightening the first bolt 23, the convex ring 135 squeezes the second support portion 115 toward the first support portion 112, so that the inclined portion 114 and the arc-shaped connecting portion 113 are elastically deformed. When the installation is completed, the second support portion 115 abuts against the first support portion 112 to achieve a double sealing effect. The first support portion 112, the second support portion 115, the inclined portion 114 and the arc-shaped connecting portion 113 constitute a hollow tubular structure, and the interior of the structure is filled with air, which can prevent liquid from penetrating during use, thereby further improving the sealing effect.

[0035] In this embodiment, reference Figure 6As shown, the pressure relief device 14 includes a shell 140, the shell 140 has an inner cavity, the inner cavity is provided with a partition 146, the inner cavity is divided into a pressure relief chamber 141 and a detection chamber 142, the detection chamber 142 is located at the lower side of the pressure relief chamber 141, the first water inlet 143 is provided at the lower end of the shell 140, the second water inlet 144 is provided at the side of the shell 140, the second pressure relief port 145 is provided at the upper end of the shell 140, the pressure relief chamber 141 is provided with a first water inlet 143 connected to the first water inlet 144. The pressure relief channel 147 of the second water inlet 144 and the second pressure relief port 145, the pressure relief component 26 is provided on the pressure relief channel 147, the pressure relief component 26 includes a first valve seat 261 provided on the pressure relief channel 147, a first metal ball 262 and a first spring 263 provided on the first valve seat 261, a second pressure sensor 32 is provided at the first pressure relief port 24, and a first electric spring 263 is provided on the first valve seat 261 for magnetically attracting the first metal ball 262 for closing the pressure relief channel 147. Magnet 33; an opening is provided on the partition 146, and an auxiliary pressure relief channel 148 connecting the first water inlet 143 and the second pressure relief port 145 is provided in the detection chamber 142. The liquid level sensor 25 is provided in the auxiliary pressure relief channel 148, and an auxiliary pressure relief assembly 34 is provided in the auxiliary pressure relief channel 148. The auxiliary pressure relief assembly 34 includes a second valve seat 341 provided on the auxiliary pressure relief channel 148, a second metal ball 342 provided on the second valve seat 341, and a second spring 343. The elastic coefficient of the second spring 343 is greater than the elastic coefficient of the first spring 263. A second electromagnet 35 is provided on the second valve seat 341 for magnetically attracting the second metal ball 342 for closing the auxiliary pressure relief channel 148. The first electromagnet 33, the second electromagnet 35, and the second pressure sensor 32 are electrically connected to the signal circuit board assembly 31. In addition, a booster pump 36 is provided at the input end of the elbow base 1, and the booster pump 36 is electrically connected to the signal circuit board assembly 31.

[0036] When the fire hydrant is in use, the water pressure sprayed from the outlet pipe is adjusted by the pressure relief assembly 26. When the pressure is too high, the first spring 263 is squeezed by the first metal ball, so that the pressure relief channel 147 is opened to achieve the pressure relief effect. The auxiliary pressure relief assembly 34 provided can better balance the water pressure at both ends of the valve disc 7, so that the water flow rate is stable, the stability of the water spray is ensured, and the flow rate is maximized, thereby improving the fire extinguishing efficiency. At the same time, the liquid level sensor 25 provided can pre-monitor the pressure in the fire hydrant and send the detection signal to the external fire center or other management platform through the signal circuit board assembly 31. When a fire occurs, firefighters rush to the fire scene and can pre-judge the required water pressure and water head through the external fire center or other management platform, adjust the pressure relief pressure through the first electromagnet 33 and the second electromagnet 35, and control the booster pump 36 to work so that the water pressure in the fire hydrant meets the water pressure, avoiding long-term pressurization preparation and improving efficiency.

[0037] Furthermore, the mounting legs 28 include a connecting plate 281 distributed in parallel at the bottom of the signal box 12 and a support plate 282 provided at the bottom of the connecting plate 281. The support plate 282 is an arc-shaped structure. Mounting holes 283 for the second bolt 29 to pass through are provided on the support plate 282 and between the two connecting plates 281 and on the lateral outside of the two connecting plates 281. The inner side surface of the signal box 12 is an arc-shaped surface, which is convenient for attachment to the outer surface of the fire hydrant, reducing space utilization and improving the compactness of the structure. A magnet is provided on the inner side surface for easy adsorption on the fire hydrant. At the same time, it is suitable for the installation of traditional fire hydrants and improves the connection strength of the signal box 12.

[0038] refer to Figure 8 As shown, the detection port 20 is provided with a connecting assembly 200 for installing the flow meter 22, and the connecting assembly 200 includes a mounting tube 201 threadedly connected to the detection port 20, a flange 202 provided on the inner end of the mounting tube 201, an L-shaped guide groove 203 provided on the inner surface of the mounting tube 201, a clamping seat 204 clamped in the mounting tube 201, a return spring 205 located between the flange 202 and the clamping seat 204, and an end cover 206 threadedly connected to the outer end of the mounting tube 201. The flow meter 22 is installed on the clamping seat 204, and the clamping seat 204 is provided. A clamping block 207 and a sealing ring 208 are provided on the periphery of the seat 204. The clamping block 207 slides inward along the L-shaped guide groove 203 to squeeze the reset spring 205, so that the clamping seat 204 slides inward and is clamped in the L-shaped guide groove 203. The end cover 206 is threadedly connected to the mounting tube 201 to realize the installation of the flow meter 22. The connection has good sealing and is firm. When disassembling and replacing, the end cover 206 is unscrewed and the clamping seat 204 is rotated. The clamping seat 204 is ejected by the reset spring 205, which makes disassembly and installation convenient, thereby improving the convenience of use.

[0039] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A detachable intelligent fire hydrant, characterized by: The valve body is provided with a second flange, and the lower end of the bolt body is provided with a third flange. The middle part of the sensor mounting seat is provided with a flow channel along its axial direction, and the peripheral side of the flow channel is provided with a through hole. The side of the sensor mounting seat is provided with a pair of detection ports and a connecting port along its radial direction. A flow meter is provided at the detection port. The sensor mounting seat is distributed between the elbow base and the valve body, and the first flange at the upper end of the elbow base and the second flange at the lower end of the valve body are locked and connected to the sensor mounting seat by passing a first bolt through the through hole. The valve body is provided with a first pressure relief port, and the pressure relief device has a pressure relief chamber and a detection chamber. The detection chamber is connected with a first water inlet, and a liquid level sensor is provided in the detection chamber. , the pressure relief chamber is connected to a second water inlet and a second pressure relief port, a pressure relief assembly is provided in the pressure relief chamber, the first water inlet of the pressure relief device is connected to the connecting port through a connecting pipe body, the second water inlet of the pressure relief device is connected to the first pressure relief port, a mounting foot is provided on the outside of the signal box, the mounting foot is locked and connected to the second flange at the upper end of the valve body and the third flange at the lower end of the bolt body through a second bolt, a battery and a signal circuit board assembly are provided in the signal box, the battery, flow meter and liquid level sensor are electrically connected to the signal circuit board assembly respectively, the copper nut is provided on the upper end of the bolt body, the ground bolt wrench is provided at the upper end of the copper nut, the anti-transfer sleeve is sleeved on the copper nut, the valve stem is provided on the inner side of the copper nut, the connecting rod is provided at the lower end of the valve stem, the connecting rod passes through the anti-transfer sleeve, the valve disc is provided at the lower end of the connecting rod, at least three water outlets are provided on the bolt body, the outlet pipe is provided at the water outlet, and the large water cover is provided on the free end of the outlet pipe; The sensor mounting seat includes an integrally formed upper disk body, a lower disk body, a connecting pipe and a plurality of support seats, the upper disk body and the lower disk body are respectively provided with an upper opening and a lower opening in the middle thereof, an upper connecting hole is provided on the upper disk body and located on the peripheral side of the upper opening, a lower connecting hole is provided on the lower disk body and located on the peripheral side of the lower opening, the connecting pipe connects the upper opening and the lower opening, and a flow channel is formed by the upper opening, the connecting pipe and the lower opening, the support seat is provided with a radial outer side of the connecting pipe, and is distributed between the upper disk body and the lower disk body, a middle connecting hole is provided on the support seat that communicates with the upper connecting hole and the lower connecting hole, and a through hole is formed by the upper connecting hole, the middle connecting hole and the lower connecting hole, and each of the detection ports and the connecting port is provided on the connecting pipe and distributed between the two support seats; The flow meter includes a signal transmitting end and a signal receiving end connected by a signal line. The signal transmitting end and the signal connecting end are respectively arranged at detection ports distributed in pairs. The detection ports distributed in pairs are located on the same straight line of the connecting pipe.

2. The detachable intelligent fire hydrant according to claim 1, characterized in that: The pressure relief device includes a shell, which has an inner cavity. A partition is provided in the inner cavity to divide the inner cavity into a pressure relief chamber and a detection chamber. The detection chamber is located at the lower side of the pressure relief chamber. The first water inlet is provided at the lower end of the shell, the second water inlet is provided at the side of the shell, and the second pressure relief port is provided at the upper end of the shell. A pressure relief flow channel connecting the second water inlet and the second pressure relief port is provided in the pressure relief chamber, and the pressure relief assembly is provided on the pressure relief flow channel.

3. The detachable intelligent fire hydrant according to claim 2, characterized in that: The pressure relief assembly includes a first valve seat arranged on the pressure relief flow channel, a first metal ball arranged on the first valve seat, and a first spring.

4. The detachable intelligent fire hydrant according to claim 3 is characterized in that: A second pressure sensor is provided at the pressure relief port, and a first electromagnet for magnetically attracting a first metal ball to close the pressure relief channel is provided on the first valve seat. The first electromagnet and the second pressure sensor are electrically connected to the signal circuit board assembly respectively.

5. The detachable intelligent fire hydrant according to claim 4 is characterized in that: An opening is provided on the partition, an auxiliary pressure relief flow channel connecting the first water inlet and the second pressure relief port is provided in the detection cavity, the liquid level sensor is provided in the auxiliary pressure relief flow channel, and an auxiliary pressure relief component is provided in the auxiliary pressure relief flow channel.

6. The detachable intelligent fire hydrant according to claim 5, characterized in that: The auxiliary pressure relief assembly includes a second valve seat provided on the auxiliary pressure relief flow channel, a second metal ball provided on the second valve seat, and a second spring, wherein the elastic coefficient of the second spring is greater than the elastic coefficient of the first spring.

7. The detachable intelligent fire hydrant according to claim 6, characterized in that: The second valve seat is provided with a second electromagnet for magnetically attracting the second metal ball to close the auxiliary pressure relief flow channel, and the second electromagnet is electrically connected to the signal circuit board assembly.

8. The detachable intelligent fire hydrant according to claim 7, characterized in that: The input end of the elbow base is provided with a booster pump, and the booster pump is electrically connected to the signal circuit board assembly.

9. The detachable intelligent fire hydrant according to claim 1, characterized in that: The mounting legs include a connecting plate distributed in parallel at the bottom of the signal box and a support plate provided at the bottom of the connecting plate. The support plate is an arc-shaped structure. Mounting holes for the second bolt to pass through are provided on the support plate and located between the two connecting plates and on the lateral outside of the two connecting plates.

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