A data acquisition device for building fire safety hazards

Abstract

The present invention relates to the technical field of data acquisition, and discloses a data acquisition device for building fire safety hazards, including a fire pipeline, a first connecting pipe and a second connecting pipe. A first wedge block and a second wedge block are movably arranged on the side of the first connecting pipe. A first electric contact piece and a second electric contact piece are arranged at the end of the first wedge block. The second electric contact piece is connected to a first warning light, and the first warning light is connected to an alarm. A third electric contact piece and a fourth electric contact piece are arranged at the end of the second wedge block. The fourth electric contact piece is connected to a second warning light, and the second warning light is also connected to the alarm. A piston is arranged in the first connecting pipe, and a water pressure collector is arranged on the side of the piston. The water pressure collector collects data on the water pressure. When the water pressure is too low, the piston moves downward to drive the first wedge block to move, and the first electric contact piece contacts the second electric contact piece, making the first warning light bright. When the water pressure is too high, the piston is pushed upward, making the second warning light bright and the alarm sound, which is convenient for checking fire safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of data acquisition, and particularly to a data acquisition device for building fire safety hazards. Background Art

[0002] The fire safety of buildings is an important part of social public safety, and its importance cannot be ignored. When fire accidents such as fires occur, they are often accompanied by high temperatures, smoke, and toxic and harmful gases, seriously threatening people's lives and property safety. Effective fire safety measures can reduce the probability of fires and reduce casualties.

[0003] Devices for preventing building fire safety hazards include smoke alarms, fire extinguishers, fire hydrants, etc. Smoke alarms often also have a high-temperature alarm function. When it detects temperatures and harmful gas concentrations exceeding the set standards, it will sound an alarm. Smoke alarms can also collect and record data on the detected temperatures and gas concentrations, can monitor the operating status of fire-fighting equipment in real time, discover potential safety hazards in a timely manner, can also support data conversion of multiple protocols to ensure the accuracy and compatibility of data, and realize real-time upload of data through a standard network interface, and have a built-in emergency power supply module to ensure normal operation for a period of time in case of power supply interruption.

[0004] Fire extinguishers and fire hydrants are even more effective tools for extinguishing fires. In places where people gather such as commercial buildings, residential communities, schools, and hospitals, a complete fire-fighting system is equipped. They provide important technical support for fire safety, help discover and handle fire and other safety hazards in a timely manner, and protect people's lives and property safety.

[0005] Currently, existing fire hoses are connected to fire hydrants to facilitate drawing water from the fire pipeline for extinguishing fires during a fire. However, there is a lack of collection of water pressure data in the fire pipeline. Excessive water pressure is likely to cause phenomena such as pipe rupture and valve leakage, while insufficient water storage in the fire tank will lead to too low water pressure, thus making it inconvenient to investigate fire safety hazards; therefore, it does not meet the existing requirements, and for this reason, we propose a data acquisition device for building fire safety hazards. Summary of the Invention

[0006] The present invention provides a data acquisition device for building fire safety hazards, which has the beneficial effect of facilitating the acquisition of water pressure data in the fire pipeline, thereby facilitating the timely detection of fire safety hazards, and solves the problem mentioned in the above background technology that the existing fire hose is connected to the fire hydrant, which is convenient for extracting water from the fire pipeline through the hose to extinguish fires during a fire. However, there is a lack of acquisition of water pressure data in the fire pipeline. Excessive water pressure is likely to cause phenomena such as pipe rupture and valve leakage, while insufficient water storage in the fire tank will lead to too low water pressure, thus making it inconvenient to detect fire safety hazards.

[0007] The present invention provides the following technical solution: A data acquisition device for building fire safety hazards includes a fire pipeline, a first connecting pipe arranged on the outer side of the fire pipeline, and a second connecting pipe connected to the end of the first connecting pipe. A first wedge block is movably arranged on the side of the first connecting pipe. A first electric contact piece is arranged at the end of the first wedge block. A second electric contact piece is arranged on the side of the first electric contact piece. The second electric contact piece is electrically connected to a cable on its side. The end of the cable is connected to a first warning light. The first warning light is connected to an alarm through the cable. A second wedge block is arranged on the side of the first connecting pipe. A third electric contact piece is arranged at the end of the second wedge block. A fourth electric contact piece is arranged on the side of the third electric contact piece. The fourth electric contact piece is connected to a second warning light through the cable on its side. The second warning light is also connected to the alarm through the cable. A piston is arranged in the first connecting pipe, and the piston is used to trigger the alarm. A water pressure collector is arranged on the side of the piston. An air hole is opened on the side of the second connecting pipe.

[0008] As an optional solution of the data acquisition device for building fire safety hazards according to the present invention, wherein: One end of the first connecting pipe is communicated with the fire pipeline, the other end of the first connecting pipe is communicated with the second connecting pipe, and the inner diameter of the second connecting pipe is larger than the inner diameter of the first connecting pipe.

[0009] As an optional solution of the data acquisition device for building fire safety hazards according to the present invention, wherein: A branch pipe is inserted into the side of the first connecting pipe. The number of the branch pipes is set to two. The first wedge block and the second wedge block are respectively slidably arranged in the two branch pipes. Straight rods are installed at the ends of the first wedge block and the second wedge block. The straight rods are slidably inserted into the ends of the branch pipes. First springs are sleeved on the outer sides of the straight rods. The two ends of one of the first springs are respectively connected to the first wedge block and the inner wall of the branch pipe, and the two ends of the other first spring are respectively connected to the second wedge block and the inner wall of the branch pipe.

[0010] As an alternative embodiment of the data acquisition device for building fire safety hazards according to the present invention, wherein: the alarm is electrically connected to the positive pole of an external power supply through the cable, and the first electrical contact piece and the third electrical contact piece are respectively electrically connected to the negative pole of the external power supply through the cable. In the initial state, the first electrical contact piece is separated from the second electrical contact piece, and the third electrical contact piece is separated from the fourth electrical contact piece.

[0011] As an alternative embodiment of the data acquisition device for building fire safety hazards according to the present invention, wherein: a first telescopic rod is installed outside the piston. The first telescopic rod includes a sleeve rod connected to the upper side of the piston and a plug rod slidably inserted inside the sleeve rod. A support rod is installed outside the plug rod, and the end of the support rod is connected to the inner wall of the second connecting pipe. A second spring is sleeved outside the first telescopic rod, and the two ends of the second spring are respectively connected to the piston and the support rod. When the water pressure in the fire pipeline is within the normal range, the piston is located between the first wedge block and the second wedge block, and the second spring is in a compressed state. At this time, the resilience of the second spring is greater than the thrust generated by the lowest water pressure in the fire pipeline on the piston and less than the thrust generated by the highest water pressure in the fire pipeline on the piston.

[0012] As an alternative embodiment of the data acquisition device for building fire safety hazards according to the present invention, wherein: a connecting rod is inserted in the middle of the air hole. A baffle is installed at one end of the connecting rod inside the second connecting pipe and at the other end outside the second connecting pipe. A third spring is sleeved outside the connecting rod, and the two ends of the third spring are respectively connected to the baffle and the outer wall of the second connecting pipe. In the initial state, there is a gap between the baffle inside the second connecting pipe and the inner wall of the second connecting pipe.

[0013] As an alternative embodiment of the data acquisition device for building fire safety hazards according to the present invention, wherein: a sliding rod is inserted into the side wall of the first connecting pipe. An inclined rod is installed at one end of the sliding rod inside the first connecting pipe. A lever is arranged inside the first connecting pipe. A fulcrum rod is arranged on the side of the lever away from the inclined rod. The lever is rotatably installed on the side of the fulcrum rod, and the end of the fulcrum rod is connected to the inner wall of the first connecting pipe. The inclined downward end of the lever is close to the inclined rod. A second telescopic rod is installed under the piston. The second telescopic rod has the same structure as the first telescopic rod, and a fourth spring is arranged inside the second telescopic rod.

[0014] As an optional solution of the data collection device for building fire safety hazards described in the present invention, wherein: a third wedge block is installed at one end of the sliding rod located outside the first connecting pipe, a limit rod is inserted into the side of the branch pipe and the first wedge block for sliding together, a fourth wedge block is installed at the end of the limit rod, the fourth wedge block is used in conjunction with the third wedge block, a sliding block is installed on the inclined surface of the third wedge block, a sliding groove is opened on the inclined surface of the fourth wedge block for use in conjunction with the sliding groove, and the sliding block is slidably inserted in the sliding groove.

[0015] As an optional scheme of the data acquisition device for building fire safety hazards described in the present invention, wherein: a shell is installed at the end of the second connecting pipe, an overflow hole connected to the second connecting pipe is opened in the middle of the shell, a rotating shaft is rotatably inserted on the lower side of the shell, and a rotating gear is installed at one end of the rotating shaft located on the inner side of the shell, a gear ring is rotatably arranged on the inner side of the shell, and a sealing piece is also rotatably arranged on the inner side of the shell, the rotating gear is meshed with the outer ring of the gear ring, and the sealing piece is meshed with the inner ring of the gear ring, the number of the sealing pieces is set to several, and the several sealing pieces are evenly arranged in the gear ring in an annular direction, and in the initial state, the several sealing pieces are in conflict with each other to close the overflow hole.

[0016] As an optional solution of the data acquisition device for building fire safety hazards described in the present invention, wherein: a shaft rod is installed on the outside of the support rod, a first bevel gear is rotatably installed on the end of the shaft rod, a second bevel gear is installed on one end of the rotating shaft located inside the second connecting pipe, the second bevel gear is meshed with the first bevel gear, a torsion spring is sleeved on the outside of the rotating shaft, the two ends of the torsion spring are respectively connected to the housing and the rotating shaft, a rack is installed on the upper side of the piston, and the rack is intermittently meshed with the first bevel gear.

[0017] The present invention has the following beneficial effects:

[0018] 1. The data acquisition device for building fire safety hazards is equipped with a water pressure collector, which facilitates the real-time collection and recording of the water pressure in the fire pipeline. Through the setting of the air hole, it avoids the influence of the air pressure between the upper side of the piston and the second connecting pipe on the movement of the piston. When the water pressure in the fire pipeline is too low, the piston is pushed downward under the resilience of the second spring, causing the piston to squeeze the first wedge block to move, compressing the first spring. At the same time, the first wedge block drives the first electric contact piece to contact and conduct electricity with the second electric contact piece, forming a complete circuit, thus making the first warning light bright and the alarm sound. When the water pressure is too high, the piston is pushed upward, causing the piston to squeeze the second wedge block to move, driving the third electric contact piece to contact and conduct electricity with the fourth electric contact piece, making the second warning light bright and the alarm sound. In summary, it is convenient to collect and adjust the water pressure in the fire pipeline, thus facilitating the timely detection of fire safety hazards.

[0019] 2. When the water pressure is too low and the piston moves downward in the data acquisition device for building fire safety hazards, the piston drives the second telescopic rod to first press down one end of the lever, causing the other end of the lever to rise and push the inclined rod outward. The inclined rod drives the third wedge block to move through the sliding rod. Through the cooperation of the third wedge block and the fourth wedge block, the limiting rod is driven to move downward and pulled out from the first wedge block, thus releasing the limiting effect on the first wedge block. Moreover, when the limiting rod is pulled out from the first wedge block, the piston continues to descend and squeezes the first wedge block, thereby pushing the first wedge block. At the same time, the second telescopic rod contracts inward to avoid the lever hindering the descent of the piston. When the water pressure is high, due to the setting of the limiting rod, the movement of the first wedge block is restricted, thus keeping the first wedge block stationary and avoiding false alarms caused by too low water pressure, thereby improving the accuracy of detecting fire safety hazards.

[0020] 3. When the water pressure is too high and the piston is pushed upward into the second connecting pipe, water flows into the second connecting pipe through the gap between the piston and the inner wall of the second connecting pipe. The water pressure squeezes the baffle outward, causing the baffle to closely adhere to the inner wall of the second connecting pipe to seal the air hole. The piston drives the rack to move upward and engage with the first bevel gear. Through the meshing of the first bevel gear and the second bevel gear, the rotating gear is driven to rotate. Then, through the meshing of the toothed ring with the rotating gear and the sealing piece, the sealing pieces are driven to move away from each other, opening the overflow hole, so that water flows out through the overflow hole, relieving the water pressure in the fire pipeline and the second connecting pipe, and avoiding the pipe body from bursting and the valve from leaking due to too high water pressure, thus reducing the fire safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic internal three-dimensional structure diagram of the present invention.

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 3 Schematic diagram of the sectional structure of the present invention.

[0024] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of part A.

[0025] Figure 5 Schematic diagram of the structure for pulling out the limiting rod of the present invention.

[0026] Figure 6 Schematic diagram of the structure for closing the overflow hole of the present invention.

[0027] Figure 7 Schematic diagram of the structure for opening the overflow hole of the present invention.

[0028] Figure 8 Schematic diagram of the partial three-dimensional structure of the present invention.

[0029] Figure 9 Schematic diagram of the circuit of the present invention.

[0030] In the figure: 100, fire fighting pipeline; 110, first connecting pipe; 120, second connecting pipe; 130, first wedge block; 131, first electric contact piece; 132, second electric contact piece; 133, cable; 134, first warning light; 135, alarm; 140, second wedge block; 141, third electric contact piece; 142, fourth electric contact piece; 143, second warning light; 150, branch pipe; 151, straight rod; 152, first spring; 160, piston; 161, first telescopic rod; 1611, sleeve rod; 1612, inserted rod; 162, support rod; 163, second spring; 170, water pressure collector; 180, air hole; 181, connecting rod; 182, baffle; 183, third spring; 190, sliding rod; 191, inclined rod; 192, lever; 193, fulcrum rod; 194, second telescopic rod; 195, fourth spring; 200, third wedge block; 201, limiting rod; 202, fourth wedge block; 203, slider; 204, chute; 210, housing; 211, overflow hole; 212, rotating shaft; 213, rotating gear; 214, toothed ring; 215, sealing piece; 220, shaft rod; 221, first bevel gear; 222, second bevel gear; 223, torsion spring; 224, rack. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that the existing fire hose is connected to the fire hydrant, which is convenient for extracting water from the fire pipeline through the hose to extinguish the fire during a fire. However, the lack of collection of the water pressure data in the fire pipeline may easily cause phenomena such as pipe rupture and valve leakage due to too high water pressure, while insufficient water storage in the fire water tank will lead to too low water pressure, thus making it inconvenient to check fire safety hazards. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 9 . A data collection device for building fire safety hazards includes a fire pipeline 100, a first connecting pipe 110 arranged outside the fire pipeline 100, and a second connecting pipe 120 connected to the end of the first connecting pipe 110. One end of the first connecting pipe 110 is communicated with the fire pipeline 100, the other end of the first connecting pipe 110 is communicated with the second connecting pipe 120, and the inner diameter of the second connecting pipe 120 is larger than that of the first connecting pipe 110.

[0033] A first wedge block 130 is movably arranged on the side of the first connecting pipe 110. The end of the first wedge block 130 is connected with a first electric contact piece 131. A second electric contact piece 132 is arranged on the side of the first electric contact piece 131. The side of the second electric contact piece 132 is electrically connected with a cable 133. The end of the cable 133 is electrically connected with a first warning light 134. The first warning light 134 is electrically connected with an alarm 135 through the cable 133. A second wedge block 140 is also movably arranged on the side of the first connecting pipe 110. The end of the second wedge block 140 is connected with a third electric contact piece 141. A fourth electric contact piece 142 is arranged on the side of the third electric contact piece 141. The side of the fourth electric contact piece 142 is connected with a second warning light 143 through the cable 133. The second warning light 143 is also connected with the alarm 135 through the cable 133.

[0034] A branch pipe 150 is fixedly inserted into the side of the first connecting pipe 110. The number of branch pipes 150 is set to two. The first wedge block 130 and the second wedge block 140 are respectively slidably arranged in the two branch pipes 150. Straight rods 151 are fixedly installed at the ends of the first wedge block 130 and the second wedge block 140. The straight rods 151 are slidably inserted into the ends of the branch pipes 150. First springs 152 are sleeved on the outer sides of the straight rods 151. The two ends of one of the first springs 152 are respectively connected to the first wedge block 130 and the inner wall of the branch pipe 150. The two ends of the other first spring 152 are respectively connected to the second wedge block 140 and the inner wall of the branch pipe 150. The alarm 135 is electrically connected to the positive pole of an external power supply through a cable 133. The first electric contact piece 131 and the third electric contact piece 141 are respectively electrically connected to the negative pole of the external power supply through the cable 133. In the initial state, the first electric contact piece 131 is separated from the second electric contact piece 132, and the third electric contact piece 141 is separated from the fourth electric contact piece 142.

[0035] A piston 160 is slidably arranged in the first connecting pipe 110. Since the first connecting pipe 110 is communicated with the fire fighting pipeline 100, the water pressure between the lower side of the piston 160 and the first connecting pipe 110 is the same as the water pressure in the fire fighting pipeline 100. The piston 160 is used to trigger the alarm 135. A first telescopic rod 161 is installed on the upper side of the piston 160. The first telescopic rod 161 includes a sleeve rod 1611 fixedly connected to the upper side of the piston 160 and a plug rod 1612 slidably inserted into the inner side of the sleeve rod 1611. A plurality of support rods 162 are fixedly installed on the outer side of the plug rod 1612. The ends of the support rods 162 are respectively fixedly connected to the inner wall of the second connecting pipe 120. A second spring 163 is sleeved on the outer side of the first telescopic rod 161. The two ends of the second spring 163 are respectively fixedly connected to the piston 160 and the support rod 162. When the water pressure in the fire fighting pipeline 100 is within the normal range, the piston 160 is located between the first wedge block 130 and the second wedge block 140, and the second spring 163 is in a compressed state. At this time, the resilience of the second spring 163 is greater than the thrust generated by the lowest water pressure in the fire fighting pipeline 100 on the piston 160 and less than the thrust generated by the highest water pressure in the fire fighting pipeline 100 on the piston 160.

[0036] A water pressure collector 170 is provided on the side of the piston 160. The water pressure collector 170 is a waterproof and immersible pressure sensor, which can collect and record the water pressure data it detects in real time. The pressure sensor is a well-known technical means to those skilled in the art and will not be elaborated here. An air hole 180 is provided on the side of the second connecting pipe 120. A connecting rod 181 is inserted in the middle of the air hole 180. Flap pieces 182 are fixedly installed at one end of the connecting rod 181 inside the second connecting pipe 120 and at the other end outside respectively. A third spring 183 is sleeved outside the connecting rod 181. Both ends of the third spring 183 are fixedly connected to the flap piece 182 and the outer wall of the second connecting pipe 120 respectively. In the initial state, there is a gap between the flap piece 182 located inside the second connecting pipe 120 and the inner wall of the second connecting pipe 120.

[0037] In this embodiment: Through the setting of the water pressure collector, it is convenient to collect and record the water pressure in the fire pipeline 100 in real time. Through the setting of the air hole 180, the air pressure between the upper side of the piston 160 and the second connecting pipe 120 is prevented from affecting the movement of the piston 160. When the water pressure in the fire pipeline 100 is too low, the piston 160 is pushed downward under the action of the resilience of the second spring 163, so that the piston 160 squeezes the first wedge block 130 to move, causing the first spring 152 to be compressed. At the same time, the first wedge block 130 also drives the first electric contact piece 131 to contact and conduct electricity with the second electric contact piece 132, forming a complete circuit, so that the first warning light 134 lights up brightly and the alarm 135 sounds an alarm.

[0038] When the water pressure in the fire pipeline 100 is too high, the water pressure in the first connecting pipe 110 pushes the piston 160 upward, so that the piston 160 squeezes the second wedge block 140 to move, causing the second wedge block 140 to drive the third electric contact piece 141 to contact and conduct electricity with the fourth electric contact piece 142, forming a complete circuit, so that the second warning light 143 lights up brightly and the alarm 135 sounds an alarm. In summary, it is convenient to collect and adjust the water pressure in the fire pipeline 100, so as to facilitate the timely investigation of fire safety hazards. As much as possible, the existing fire hose is connected to the fire hydrant, which is convenient for pumping water from the fire pipeline through the hose to extinguish the fire during a fire. However, the lack of collection of water pressure data in the fire pipeline, too high water pressure is likely to cause phenomena such as pipe rupture and valve leakage, and insufficient water storage in the fire water tank will lead to too low water pressure, thus making it inconvenient to investigate fire safety hazards.

[0039] It should be noted that: The first warning light 134 and the second warning light 143 can adopt different light colors to facilitate the distinction between the too low water pressure alarm and the too high water pressure alarm. Due to the limitation of the maximum telescopic amount of the first telescopic rod 161, the piston 160 will not cross the first wedge block 130 at the lowest position.

[0040] Embodiment 2 aims to facilitate the solution of the problem that when the water pressure is high, the first wedge block 130 is easily pushed outwards, causing the first electric contact piece 131 and the second electric contact piece 132 to touch, resulting in a false alarm of too low water pressure, which is likely to affect the accuracy of troubleshooting fire safety hazards. This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8 , a sliding rod 190 is inserted into the side wall of the first connecting pipe 110 in a sliding manner. One end of the sliding rod 190 located inside the first connecting pipe 110 is fixedly installed with an inclined rod 191. A lever 192 is arranged inside the first connecting pipe 110. A fulcrum rod 193 is arranged on the side of the lever 192 away from the inclined rod 191. The lever 192 is rotatably installed on the side of the fulcrum rod 193. The end of the fulcrum rod 193 is fixedly connected to the inner wall of the first connecting pipe 110. The downwardly inclined end of the lever 192 is close to the inclined rod 191. A second telescopic rod 194 is installed below the piston 160. The second telescopic rod 194 has the same structure as the first telescopic rod 161. A fourth spring 195 is arranged inside the second telescopic rod 194.

[0041] One end of the sliding rod 190 located outside the first connecting pipe 110 is fixedly installed with a third wedge block 200. A limiting rod 201 is inserted into the side parts of the branch pipe 150 and the first wedge block 130 in a sliding manner. One end of the limiting rod 201 is fixedly installed with a fourth wedge block 202. The fourth wedge block 202 is used in cooperation with the third wedge block 200. A slider 203 is installed on the inclined surface of the third wedge block 200. A chute 204 for cooperating with the slider 203 is arranged on the inclined surface of the fourth wedge block 202. The slider 203 is inserted into the chute 204 in a sliding manner.

[0042] In this embodiment: when the water pressure is too low and the piston 160 moves downward, the piston 160 drives the second telescopic rod 194 to first press down one end of the lever 192, causing the other end of the lever 192 to rise and push the inclined rod 191 outwards. The inclined rod 191 drives the third wedge block 200 to move through the sliding rod 190. Through the cooperation of the third wedge block 200 and the fourth wedge block 202, the limiting rod 201 is driven to move downward and pulled out from the first wedge block 130, thereby releasing the limiting effect on the first wedge block 130. Moreover, when the limiting rod 201 is pulled out from the first wedge block 130, the piston 160 continues to descend and presses the first wedge block 130, thereby pushing the first wedge block 130. At the same time, the second telescopic rod 194 contracts inwards to prevent the lever 192 from hindering the downward movement of the piston 160;

[0043] When the water pressure is high, due to the setting of the limiting rod 201, the movement of the first wedge block 130 is restricted, so that the first wedge block 130 remains stationary, avoiding false alarms of too low water pressure, and thus improving the accuracy of troubleshooting fire safety hazards.

[0044] Embodiment 3. The purpose of this embodiment is to facilitate the solution of the problem that when the water pressure is too high, it is difficult to drain the water flow in the fire pipeline 100, which is likely to cause the pipe body to burst and the valve to leak, thus easily causing fire safety hazards. This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7 ., a housing 210 is fixedly installed at the end of the second connecting pipe 120. An overflow hole 211 communicating with the second connecting pipe 120 is provided in the middle of the housing 210. A rotating shaft 212 is rotatably inserted into the lower side of the housing 210 through a bearing. A rotating gear 213 is fixedly installed at one end of the rotating shaft 212 located inside the housing 210. A toothed ring 214 is rotatably arranged inside the housing 210. A blocking piece 215 is also rotatably arranged inside the housing 210. The rotating gear 213 meshes with the outer ring of the toothed ring 214, and the blocking piece 215 meshes with the inner ring of the toothed ring 214. The number of the blocking pieces 215 is set to be several, and several blocking pieces 215 are circumferentially and uniformly arranged inside the toothed ring 214. In the initial state, several blocking pieces 215 are in contact with each other to close the overflow hole 211.

[0045] A shaft rod 220 is fixedly installed on the outer side of the support rod 162. A first bevel gear 221 is rotatably installed at the end of the shaft rod 220. A second bevel gear 222 is fixedly installed at one end of the rotating shaft 212 located inside the second connecting pipe 120. The second bevel gear 222 meshes with the first bevel gear 221. A torsion spring 223 is sleeved on the outer side of the rotating shaft 212. The two ends of the torsion spring 223 are respectively fixedly connected to the outer wall of the housing 210 and the rotating shaft 212. A rack 224 is fixedly installed on the upper side of the piston 160. The rack 224 meshes with the first bevel gear 221 intermittently.

[0046] In this embodiment: when the water pressure is too high, the piston 160 is pushed upward. When the piston 160 moves upward into the second connecting pipe 120, the diameter of the piston 160 is smaller than the inner diameter of the second connecting pipe 120, so that the water in the first connecting pipe 110 floods into the second connecting pipe 120 through the gap between the piston 160 and the inner wall of the second connecting pipe 120. The water pressure extrudes the baffle 182 outward, so that the baffle 182 clings to the inner wall of the second connecting pipe 120 to seal the air hole 180;

[0047] Subsequently, the piston 160 drives the rack 224 to move upward and engage with the first bevel gear 221. The rotation of the first bevel gear 221 drives the rotation of the rotation gear 213 through the engagement with the second bevel gear 222, and the torsion spring 223 is compressed. Then, through the engagement of the toothed ring 214 with the rotation gear 213 and the blocking piece 215, the blocking pieces 215 are driven to move away from each other, opening the overflow hole 211, so that the water flows out through the overflow hole 211, relieving the pressure of the water flow in the fire pipeline 100 and the second connecting pipe 120, avoiding the bursting of the pipe body and the leakage of the valve caused by too high water pressure, thereby reducing the potential safety hazard of fire protection. When the water pressure in the second connecting pipe 120 returns to the normal range, the piston 160 drives the rack 224 to move downward and reset, releasing the engagement between the rack 224 and the first bevel gear 221, so that the second bevel gear 222 rotates in the opposite direction under the action of the resilience of the torsion spring 223, thereby closing the overflow hole 211 again with the blocking piece 215.

[0048] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0049] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A data collection device for building fire safety hazards, comprising a fire pipe, a first connecting pipe arranged outside the fire pipe, and a second connecting pipe connected to the end of the first connecting pipe, characterized in that: A first wedge block is movably provided on the side of the first connecting tube, a first electric contact is provided on the end of the first wedge block, a second electric contact is provided on the side of the first electric contact, a cable is electrically connected to the side of the second electric contact, a first warning light is connected to the end of the cable, the first warning light is connected to the alarm through the cable, a second wedge block is provided on the side of the first connecting tube, a third electric contact is provided on the end of the second wedge block, a fourth electric contact is provided on the side of the third electric contact, a second warning light is connected to the side of the fourth electric contact through the cable, and the second warning light is also connected to the alarm through the cable, a piston is provided in the first connecting tube, the piston is used to trigger the alarm, a water pressure collector is provided on the side of the piston, and an air hole is opened on the side of the second connecting tube; A connecting rod is inserted in the middle of the air hole, and a baffle is respectively installed at one end of the connecting rod located on the inner side of the second connecting tube and the outer side thereof, a sliding rod is slidably inserted in the side wall of the first connecting tube, an inclined rod is installed at one end of the sliding rod, a lever is arranged inside the first connecting tube, a fulcrum rod is arranged on the side of the lever away from the inclined rod, a second telescopic rod is installed on the lower side of the piston, a third wedge block is installed at one end of the sliding rod located outside the first connecting tube, a branch pipe is inserted in the side of the first connecting tube, a limit rod is slidably inserted in the side of the branch pipe and the first wedge block, a fourth wedge block is installed at the end of the limit rod, the fourth wedge block is used in conjunction with the third wedge block, a shell is installed at the end of the second connecting tube, and an overflow hole connected to the second connecting tube is opened in the middle of the shell.

2. A data collection device for building fire safety hazards according to claim 1, characterized in that: One end of the first connecting pipe is communicated with the fire-fighting pipe, and the other end of the first connecting pipe is communicated with the second connecting pipe, and the inner diameter of the second connecting pipe is greater than the inner diameter of the first connecting pipe.

3. A data collection device for building fire safety hazards according to claim 1, characterized in that: The number of branch pipes is set to two, the first wedge block and the second wedge block are slidably arranged in the two branch pipes respectively, straight rods are installed at the ends of the first wedge block and the second wedge block, the straight rods are slidably inserted in the ends of the branch pipes, and first springs are sleeved on the outside of the straight rods, the two ends of one of the first springs are respectively connected to the first wedge block and the inner wall of the branch pipe, and the two ends of the other first spring are respectively connected to the second wedge block and the inner wall of the branch pipe.

4. A data collection device for building fire safety hazards according to claim 1, characterized in that: The alarm is electrically connected to the positive pole of the external power supply through a cable, and the first electric contact and the third electric contact are electrically connected to the negative pole of the external power supply through cables respectively. In the initial state, the first electric contact is separated from the second electric contact, and the third electric contact is separated from the fourth electric contact.

5. The data collection device for building fire safety hazards according to claim 3 is characterized in that: A first telescopic rod is installed on the outside of the piston, and the first telescopic rod includes a sleeve rod connected to the upper side of the piston, and an insertion rod slidably inserted inside the sleeve rod, a support rod is installed on the outside of the insertion rod, and the end of the support rod is connected to the inner wall of the second connecting pipe, and a second spring is sleeved on the outside of the first telescopic rod, and the two ends of the second spring are respectively connected to the piston and the support rod. When the water pressure in the fire-fighting pipe is within a normal range, the piston is located between the first wedge block and the second wedge block, and the second spring is in a compressed state. At this time, the rebound force of the second spring is greater than the thrust of the piston generated by the lowest water pressure in the fire-fighting pipe, and is less than the thrust of the piston generated by the highest water pressure in the fire-fighting pipe.

6. The data collection device for building fire safety hazards according to claim 1, characterized in that: A third spring is sleeved outside the connecting rod, and both ends of the third spring are respectively connected to the baffle and the outer wall of the second connecting tube. In the initial state, a gap is left between the baffle inside the second connecting tube and the inner wall of the second connecting tube.

7. The data collection device for building fire safety hazards according to claim 5 is characterized in that: The lever is rotatably mounted on the side of the fulcrum rod, the end of the fulcrum rod is connected to the inner wall of the first connecting tube, the end of the lever tilted downward is close to the oblique rod, the second telescopic rod has the same structure as the first telescopic rod, and a fourth spring is arranged inside the second telescopic rod.

8. The data collection device for building fire safety hazards according to claim 7, characterized in that: A sliding block is installed on the inclined surface of the third wedge-shaped block, and a sliding groove used in conjunction with the sliding block is opened on the inclined surface of the fourth wedge-shaped block, and the sliding block is slidably inserted in the sliding groove.

9. The data collection device for building fire safety hazards according to claim 5, characterized in that: A rotating shaft is rotatably plugged into the lower side of the shell, and a rotating gear is installed at one end of the rotating shaft located on the inner side of the shell. A gear ring is rotatably arranged on the inner side of the shell, and a sealing piece is also rotatably arranged on the inner side of the shell. The rotating gear meshes with the outer ring of the gear ring, and the sealing piece meshes with the inner ring of the gear ring. The number of sealing pieces is set to several, and several sealing pieces are evenly arranged in the gear ring in an annular direction. In the initial state, several sealing pieces conflict with each other to close the overflow hole.

10. A data collection device for building fire safety hazards according to claim 9, characterized in that: A shaft rod is installed on the outside of the support rod, and a first bevel gear is rotatably installed on the end of the shaft rod. A second bevel gear is installed on one end of the rotating shaft located inside the second connecting tube, and the second bevel gear is meshed with the first bevel gear. A torsion spring is sleeved on the outside of the rotating shaft, and the two ends of the torsion spring are respectively connected to the housing and the rotating shaft. A rack is installed on the upper side of the piston, and the rack is intermittently meshed with the first bevel gear.

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