Data acquisition device for building fire-fighting potential safety hazards

Abstract

The invention relates to the technical field of data acquisition, and discloses a data acquisition device for building fire-fighting potential safety hazards, which comprises a fire-fighting pipeline, a first connecting pipe and a second connecting pipe, a first wedge-shaped block and a second wedge-shaped block are movably arranged at the side part of the first connecting pipe, and a first electric contact piece and a second electric contact piece are arranged at the end part of the first wedge-shaped block; the second electric contact piece is connected with a first warning lamp, the first warning lamp is connected with an alarm, the end of the second wedge block is provided with a third electric contact piece and a fourth electric contact piece, the fourth electric contact piece is connected with a second warning lamp, the second warning lamp is also connected with the alarm, a piston is arranged in the first connecting pipe, and a water pressure collector is arranged on the side portion of the piston. And when the water pressure is too low, the piston moves downwards to drive the first wedge-shaped block to move, the first electric contact piece abuts against the second electric contact piece, the first warning lamp is turned on, when the water pressure is too high, the piston is pushed upwards, the second warning lamp is turned on, the alarm apparatus whistles, and fire-fighting potential safety hazards can be checked conveniently.

Description

Technical Field

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

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

[0003] Equipment used to prevent building fire safety hazards include smoke alarms, fire extinguishers, fire hydrants, etc. Smoke alarms are often equipped with high-temperature alarm functions. When they detect temperatures and harmful gas concentrations that exceed the set standards, an alarm will sound. Smoke alarms can also collect and record data on the detected temperature and gas concentration, and can monitor the operating status of fire-fighting equipment in real time, promptly discover potential safety hazards, and support data conversion of multiple protocols to ensure data accuracy and compatibility, and upload data in real time through a standard network interface. It also has a built-in emergency power supply module to ensure that it can continue to work normally for a period of time when the power supply is interrupted.

[0004] Fire extinguishers and fire hydrants are effective tools for extinguishing fires. Places where people gather, such as commercial buildings, residential communities, schools, and hospitals, are equipped with fully equipped fire-fighting systems. They provide important technical support for fire safety, help to promptly detect and deal with safety hazards such as fires, and protect people's lives and property.

[0005] At present, the existing fire hoses are connected to fire hydrants, which is convenient for pumping water out of the fire pipes to extinguish the fire when a fire occurs. However, there is a lack of data collection on the water pressure in the fire pipes. Excessive water pressure can easily cause pipe rupture, valve leakage, etc., while insufficient water storage in the fire water tank will lead to low water pressure, which makes it difficult to check for fire safety hazards. Therefore, it does not meet the existing needs. We propose a data collection device for building fire safety hazards. Summary of the invention

[0006] The present invention provides a data collection device for building fire safety hazards, which has the beneficial effect of facilitating data collection on the water pressure in the fire pipe, thereby facilitating timely investigation of fire safety hazards, and solves the problem that the existing fire hose gun is connected to the fire hydrant mentioned in the above background technology, so that when a fire occurs, the water in the fire pipe is pumped out by the water gun to extinguish the fire, but lacks the collection of water pressure data in the fire pipe. Too high water pressure can easily cause pipe rupture, valve leakage, etc., and insufficient water storage in the fire water tank will cause the water pressure to be too low, which makes it difficult to investigate fire safety hazards.

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

[0008] As an optional solution of a data collection device for building fire safety hazards described in the present invention, one end of the first connecting pipe is connected to the fire protection pipe, the other end of the first connecting pipe is connected to 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 collection device for building fire safety hazards described in 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 in the ends of the branch pipes, and first springs are sleeved on the outside of the straight rods, wherein 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 optional solution of the data collection device for building fire safety hazards described in the present invention, wherein: the alarm is electrically connected to the positive pole of the external power supply through the cable, the first electric contact and the third electric contact are electrically connected to the negative pole of the external power supply through the cable respectively, and 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.

[0011] As an optional solution of the data collection device for building fire safety hazards described in the present invention, wherein: a first telescopic rod is installed on the outside of the piston, the first telescopic rod includes a sleeve rod connected to the upper side of the piston, and an insertion rod slidably inserted into the inner side of the sleeve rod, a support rod is installed on the outside of the insertion rod, the end of the support rod is connected to the inner wall of the second connecting tube, a second spring is sleeved on the outside of the first telescopic rod, 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 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 which 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.

[0012] As an optional solution of the data acquisition device for building fire safety hazards described in the present invention, a connecting rod is inserted in the middle of the air hole, and baffles are respectively installed at one end of the connecting rod located on the inner side and the other end of the connecting rod located on the outer side of the second connecting tube, and a third spring is sleeved on the outer side of 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 tube, and in the initial state, a gap is left between the baffle located inside the second connecting tube and the inner wall of the second connecting tube.

[0013] As an optional solution of the data collection device for building fire safety hazards described in the present invention, wherein: a sliding rod is slidably inserted into the side wall of the first connecting tube, and an inclined rod is installed at one end of the sliding rod located inside the first connecting tube, 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, the lever is rotatably installed 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 inclined rod, a second telescopic rod is installed on the lower side of the piston, the second telescopic rod has the same structure as the first telescopic rod, and a fourth spring is arranged on the inside of 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: 1. The data acquisition device for building fire safety hazards is convenient for real-time collection and recording of the water pressure in the fire pipe through the setting of the water pressure collector. The setting of the air hole prevents the air pressure between the upper side of the piston and the second connecting pipe from affecting the movement of the piston. When the water pressure in the fire pipe is too low, the piston is pushed downward under the action of the rebound force of the second spring, so that the piston squeezes the first wedge block to move, so that the first spring is compressed, and at the same time, the first wedge block drives the first electric contact piece to contact and energize the second electric contact piece to form a complete circuit, so that the first warning light is bright and the alarm sounds an alarm. When the water pressure is too high, the piston is pushed upward, so that the piston squeezes the second wedge block to move, driving the third electric contact piece to contact and energize the fourth electric contact piece, so that the second warning light is bright and the alarm sounds an alarm. In summary, it is convenient to collect and adjust the water pressure in the fire pipe, so as to facilitate timely investigation of fire safety hazards.

[0018] 2. The data acquisition device for building fire safety hazards, when the water pressure is too low and the piston moves downward, the piston drives the second telescopic rod to press down one end of the lever first, so that the other end of the lever rises, pushing the inclined rod outward, and the inclined rod drives the third wedge block to move through the sliding rod, and the third wedge block and the fourth wedge block are used in coordination to drive the limit rod to move downward and be pulled out of the first wedge block, thereby releasing the limiting effect on the first wedge block. Not only that, when the limit rod is pulled out of the first wedge block, the piston continues to descend, squeezing the first wedge block, thereby pushing the first wedge block. At the same time, the second telescopic rod contracts inward to prevent the lever from hindering the descent of the piston. When the water pressure is high, due to the setting of the limit rod, the movement of the first wedge block is restricted, thereby keeping the first wedge block stationary, avoiding false alarms caused by low water pressure, thereby improving the accuracy of troubleshooting fire safety hazards.

[0019] 3. The data acquisition device for building fire safety hazards, when the water pressure is too high, pushes the piston to move up into the second connecting pipe, so that water flows into the second connecting pipe through the gap between the piston and the inner wall of the second connecting pipe, and the water pressure squeezes the baffle outward, so that the baffle is close to the inner wall of the second connecting pipe to seal the air hole, and the piston drives the rack to move up and mesh with the first bevel gear, and the meshing of the first bevel gear and the second bevel gear drives the rotating gear to rotate, and then the meshing of the gear ring with the rotating gear and the sealing piece drives the sealing pieces to move away from each other, and the overflow hole is opened, so that the water flows out through the overflow hole, and the water flow in the fire-fighting pipe and the second connecting pipe is depressurized, so as to avoid the pipe body bursting and valve leakage caused by excessive water pressure, thereby reducing the hidden dangers of fire safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the cutaway structure of the present invention.

[0023] Figure 4 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0024] Figure 5 It is a schematic diagram of the limit rod extraction structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the overflow hole closing structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the overflow hole opening structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0028] Fig. 9 Schematic diagram of the circuit of the present invention.

[0029] In the figure: 100, fire fighting pipe; 110, first connecting pipe; 120, second connecting pipe; 130, first wedge block; 131, first electric contact; 132, second electric contact; 133, cable; 134, first warning light; 135, alarm; 140, second wedge block; 141, third electric contact; 142, fourth electric contact; 143, second warning light; 150, branch pipe; 151, straight rod; 152, first spring; 160, piston; 161, first telescopic rod; 1611, sleeve rod; 1612, plug rod; 162, support rod; 163, second spring; 170, water pressure collector; 180, air hole; 181, connecting rod; 182, blocking piece; 183, third spring; 190, sliding rod; 191, oblique rod; 192, lever; 193, fulcrum rod; 194, second telescopic rod; 195, fourth spring; 200, third wedge block; 201, limit rod; 202, fourth wedge block; 203, slider; 204, slide groove; 210, housing; 211, overflow hole; 212, rotating shaft; 213, rotating gear; 214, gear ring; 215, blocking piece; 220, shaft; 221, first bevel gear; 222, second bevel gear; 223, torsion spring; 224, rack. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: This embodiment aims to promote the solution of the existing fire hose connection with the fire hydrant, so that when a fire occurs, the water in the fire pipe can be pumped out by the hose to extinguish the fire. However, there is a lack of data collection on the water pressure in the fire pipe. Too high water pressure can easily cause pipe rupture, valve leakage, etc., and insufficient water storage in the fire water tank will lead to too low water pressure, which makes it difficult to troubleshoot fire safety hazards. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig. 9 A data collection device for building fire safety hazards includes a fire pipe 100, a first connecting pipe 110 arranged outside the fire pipe 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 connected to the fire pipe 100, and the other end of the first connecting pipe 110 is connected to the second connecting pipe 120, and the inner diameter of the second connecting pipe 120 is greater than the inner diameter of the first connecting pipe 110.

[0032] A first wedge block 130 is movably provided on the side of the first connecting tube 110, and a first electric contact 131 is connected to the end of the first wedge block 130, and a second electric contact 132 is provided on the side of the first electric contact 131, and a cable 133 is electrically connected to the side of the second electric contact 132, and a first warning light 134 is electrically connected to the end of the cable 133, and the first warning light 134 is electrically connected to the alarm 135 through the cable 133. A second wedge block 140 is also movably provided on the side of the first connecting tube 110, and a third electric contact 141 is connected to the end of the second wedge block 140, and a fourth electric contact 142 is provided on the side of the third electric contact 141, and a second warning light 143 is connected to the side of the fourth electric contact 142 through the cable 133, and the second warning light 143 is also connected to the alarm 135 through the cable 133.

[0033] A branch pipe 150 is fixedly inserted into the side of the first connecting pipe 110, and the number of the 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 rod 151 is slidably inserted into the ends of the branch pipes 150. The outer sides of the straight rods 151 are sleeved with first springs 152. The two ends of one of the first springs 152 are respectively connected to the first wedge block 130 and the second wedge block 140. 0 is connected to the inner wall of the branch pipe 150, the two ends of another 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 the external power supply through the cable 133, the first electric contact 131 and the third electric contact 141 are respectively electrically connected to the negative pole of the external power supply through the cable 133, and in the initial state, the first electric contact 131 is separated from the second electric contact 132, and the third electric contact 141 is separated from the fourth electric contact 142.

[0034] A piston 160 is slidably arranged in the first connecting pipe 110. Since the first connecting pipe 110 is connected to the fire-fighting pipe 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 pipe 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 an insertion 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 insertion rod 1612. The ends of the support rods 162 are fixedly connected to the upper side of the piston 160. The first and second connecting pipes 120 and 121 are fixedly connected to each other, and the second spring 163 is sleeved on the outer side of the first telescopic rod 161. The two ends of the second spring 163 are fixedly connected to the piston 160 and the support rod 162 respectively. When the water pressure in the fire-fighting pipe 100 is within a 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 rebound force of the second spring 163 is greater than the thrust of the piston 160 generated by the lowest water pressure in the fire-fighting pipe 100, and is less than the thrust of the piston 160 generated by the highest water pressure in the fire-fighting pipe 100.

[0035] A water pressure collector 170 is provided on the side of the piston 160. The water pressure collector 170 is configured as a waterproof and immersible pressure sensor, which can collect and record the water pressure data detected by it in real time. The pressure sensor is a technical means well known to technicians in this field and will not be described in detail here. An air hole 180 is opened on the side of the second connecting tube 120, and a connecting rod 181 is inserted in the middle of the air hole 180. The connecting rod 181 is located at one end on the inner side of the second connecting tube 120 and one end on the outer side, respectively, and a baffle 182 is fixedly installed. A third spring 183 is sleeved on the outside of the connecting rod 181, and the two ends of the third spring 183 are fixedly connected to the baffle 182 and the outer wall of the second connecting tube 120, respectively. In the initial state, the baffle 182 located inside the second connecting tube 120 leaves a gap with the inner wall of the second connecting tube 120.

[0036] In this embodiment: by setting the water pressure collector, it is convenient to collect and record the water pressure in the fire pipe 100 in real time. By setting the air hole 180, it is prevented that the air pressure between the upper side of the piston 160 and the second connecting pipe 120 affects the movement of the piston 160. When the water pressure in the fire pipe 100 is too low, the piston 160 is pushed downward under the action of the rebound force of the second spring 163, so that the piston 160 squeezes the first wedge block 130 to move, so that the first spring 152 is compressed, and at the same time, the first wedge block 130 drives the first electric contact piece 131 and the second electric contact piece 132 to contact and energize, forming a complete circuit, so that the first warning light 134 is bright, and the alarm 135 sounds an alarm; When the water pressure in the fire-fighting pipe 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, so that the second wedge block 140 drives the third electric contact 141 and the fourth electric contact 142 to contact and energize, forming a complete circuit, so that the second warning light 143 is bright, and the alarm 135 sounds an alarm. In summary, it is convenient to collect and adjust the water pressure in the fire-fighting pipe 100, so as to facilitate timely investigation of fire safety hazards, and solve the existing fire hose connection with the fire hydrant as much as possible, so as to facilitate the use of the water gun to pump out the water in the fire-fighting pipe for fire extinguishing when a fire occurs. However, there is a lack of collection of water pressure data in the fire-fighting pipe. Excessive water pressure can easily cause pipe rupture, valve leakage, etc., and insufficient water storage in the fire water tank will cause the water pressure to be too low, which makes it difficult to investigate the problem of fire safety hazards.

[0037] It should be noted that the first warning light 134 and the second warning light 143 can use different light colors to facilitate the distinction between the low water pressure alarm and the high water pressure alarm. Due to the limitation of the maximum extension amount of the first telescopic rod 161, the piston 160 will not go beyond the first wedge block 130 at the lowest.

[0038] Embodiment 2: This embodiment is intended to solve the problem that when the water pressure is high, the first wedge block 130 is easily pushed outward, so that the first electrical contact piece 131 and the second electrical contact piece 132 touch each other, causing a false alarm of low water pressure, which easily affects the accuracy of troubleshooting fire safety hazards. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8 A sliding rod 190 is slidably inserted into the side wall of the first connecting tube 110, and an inclined rod 191 is fixedly installed at one end of the sliding rod 190 located inside the first connecting tube 110. A lever 192 is arranged inside the first connecting tube 110, and 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, and the end of the fulcrum rod 193 is fixedly connected to the inner wall of the first connecting tube 110. The end of the lever 192 that is tilted downward is close to the inclined rod 191. A second telescopic rod 194 is installed on the lower side of the piston 160. The second telescopic rod 194 has the same structure as the first telescopic rod 161, and a fourth spring 195 is arranged on the inner side of the second telescopic rod 194.

[0039] A third wedge block 200 is fixedly installed on one end of the sliding rod 190 located outside the first connecting tube 110, and a limiting rod 201 is slidably inserted into the side of the branch pipe 150 and the first wedge block 130. A fourth wedge block 202 is fixedly installed on the end of the limiting rod 201. The fourth wedge block 202 is used in conjunction with the third wedge block 200. A sliding block 203 is installed on the inclined surface of the third wedge block 200, and a sliding groove 204 used in conjunction with the sliding block 203 is opened on the inclined surface of the fourth wedge block 202, and the sliding block 203 is slidably inserted in the sliding groove 204.

[0040] In this embodiment: when the water pressure is too low to make the piston 160 move downward, the piston 160 drives the second telescopic rod 194 to first press down one end of the lever 192, so that the other end of the lever 192 rises, pushing the inclined rod 191 outward, and 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, squeezing the first wedge block 130, thereby pushing the first wedge block 130. At the same time, the second telescopic rod 194 contracts inward to prevent the lever 192 from hindering the descent of the piston 160. When the water pressure is high, the movement of the first wedge block 130 is restricted due to the setting of the limit rod 201, thereby keeping the first wedge block 130 stationary, avoiding false alarms caused by low water pressure, and thus improving the accuracy of troubleshooting fire safety hazards.

[0041] Embodiment 3: This embodiment is intended to solve the problem that when the water pressure is too high, it is difficult to discharge the water in the fire pipe 100, which may easily cause the pipe body to burst and the valve to leak, thus easily causing fire safety hazards. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 A shell 210 is fixedly installed at the end of the second connecting pipe 120, and an overflow hole 211 connected to the second connecting pipe 120 is opened in the middle of the shell 210. A rotating shaft 212 is rotatably inserted on the lower side of the shell 210 through a bearing, and a rotating gear 213 is fixedly installed on one end of the rotating shaft 212 located on the inner side of the shell 210. A gear ring 214 is rotatably arranged on the inner side of the shell 210, and a sealing piece 215 is also rotatably arranged on the inner side of the shell 210. The rotating gear 213 meshes with the outer ring of the gear ring 214, and the sealing piece 215 meshes with the inner ring of the gear ring 214. The number of the sealing pieces 215 is set to be several, and the several sealing pieces 215 are evenly arranged in the gear ring 214 in an annular direction. In the initial state, the several sealing pieces 215 conflict with each other to close the overflow hole 211.

[0042] A shaft rod 220 is fixedly installed on the outside of the support rod 162, and a first bevel gear 221 is rotatably installed on the end of the shaft rod 220. A second bevel gear 222 is fixedly installed on one end of the rotating shaft 212 located inside the second connecting tube 120, and the second bevel gear 222 is meshed with the first bevel gear 221. A torsion spring 223 is sleeved on the outside of the rotating shaft 212, and both ends of the torsion spring 223 are respectively fixedly connected to the outer wall of the shell 210 and the rotating shaft 212. A rack 224 is fixedly installed on the upper side of the piston 160, and the rack 224 is intermittently meshed with the first bevel gear 221.

[0043] 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 tube 120, the diameter of the piston 160 is smaller than the inner diameter of the second connecting tube 120, so that the water in the first connecting tube 110 flows into the second connecting tube 120 through the gap between the piston 160 and the inner wall of the second connecting tube 120. The water pressure squeezes the baffle 182 outward, so that the baffle 182 is tightly attached to the inner wall of the second connecting tube 120 to seal the air hole 180. Subsequently, the piston 160 drives the rack 224 to move upward and mesh with the first bevel gear 221, and the rotating gear 213 is driven to rotate through the meshing of the first bevel gear 221 and the second bevel gear 222, and the torsion spring 223 is compressed, and then the meshing of the gear ring 214 with the rotating gear 213 and the blocking piece 215 drives the blocking piece 215 to move away from each other, opening the overflow hole 211, so that the water flows out through the overflow hole 211, and the water flow in the fire-fighting pipe 100 and the second connecting pipe 120 is depressurized to avoid excessive water pressure causing pipe body burst and valve leakage, thereby reducing the hidden danger of fire safety. 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 meshing of 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 rebound force of the torsion spring 223, so that the blocking piece 215 closes the overflow hole 211 again.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A data collection device for building fire safety hazards, comprising a fire pipe (100), a first connecting pipe (110) arranged outside the fire pipe (100), and a second connecting pipe (120) connected to an end of the first connecting pipe (110), characterized in that: A first wedge block (130) is movably provided on the side of the first connecting tube (110); a first electric contact piece (131) is provided at the end of the first wedge block (130); a second electric contact piece (132) is provided on the side of the first electric contact piece (131); a cable (133) is electrically connected to the side of the second electric contact piece (132); a first warning light (134) is connected to the end of the cable (133); the first warning light (134) is connected to an alarm (135) via the cable (133); a second wedge block (140) is provided on the side of the first connecting tube (110); a first electric contact piece (131) is provided at the end of the first electric contact piece (131); a second electric contact piece (132) is provided at the side of the second electric contact piece (132); A third electric contact piece (141) is arranged, a fourth electric contact piece (142) is arranged on the side of the third electric contact piece (141), a second warning light (143) is connected to the side of the fourth electric contact piece (142) via the cable (133), the second warning light (143) is also connected to the alarm (135) via the cable (133), a piston (160) is arranged in the first connecting tube (110), the piston (160) is used to trigger the alarm (135), a water pressure collector (170) is arranged on the side of the piston (160), and an air hole (180) is opened on the side of the second connecting tube (120).

2. A data collection device for building fire safety hazards according to claim 1, characterized in that: One end of the first connecting pipe (110) is in communication with the fire-fighting pipe (100), and the other end of the first connecting pipe (110) is in communication with the second connecting pipe (120), and the inner diameter of the second connecting pipe (120) is greater than the inner diameter of the first connecting pipe (110).

3. A data collection device for building fire safety hazards according to claim 1, characterized in that: A branch pipe (150) is inserted into the side of the first connecting pipe (110), and the number of the 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 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 outside of the straight rods (151), and 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), and 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).

4. A data collection device for building fire safety hazards according to claim 1, characterized in that: The alarm (135) is electrically connected to the positive pole of an external power source via the cable (133); the first electric contact piece (131) and the third electric contact piece (141) are electrically connected to the negative pole of an external power source via the cable (133), respectively; in an 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).

5. The data collection device for building fire safety hazards according to claim 3 is characterized in that: A first telescopic rod (161) is mounted on the outside of the piston (160), the first telescopic rod (161) comprising a sleeve rod (1611) connected to the upper side of the piston (160), and an insertion rod (1612) slidably inserted into the inner side of the sleeve rod (1611), a support rod (162) is mounted on the outside of the insertion rod (1612), the end of the support rod (162) is connected to the inner wall of the second connecting tube (120), a second spring (163) is sleeved on the outside of the first telescopic rod (161), and the two ends of the second spring (163) are respectively connected to the inner wall of the second connecting tube (120). The piston (160) is connected to the support rod (162). When the water pressure in the fire-fighting pipe (100) is within a 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 rebound force of the second spring (163) is greater than the thrust generated by the lowest water pressure in the fire-fighting pipe (100) on the piston (160), and is less than the thrust generated by the highest water pressure in the fire-fighting pipe (100) on the piston (160).

6. The data collection device for building fire safety hazards according to claim 1, characterized in that: A connecting rod (181) is inserted in the middle of the air hole (180); a baffle (182) is installed at one end of the connecting rod (181) located inside the second connecting tube (120) and at one end outside the connecting rod (181); a third spring (183) is sleeved on the outside of the connecting rod (181); two ends of the third spring (183) are respectively connected to the baffle (182) and the outer wall of the second connecting tube (120); in an initial state, a gap is left between the baffle (182) located inside the second connecting tube (120) and the inner wall of the second connecting tube (120).

7. The data collection device for building fire safety hazards according to claim 5 is characterized in that: A sliding rod (190) is slidably inserted into the side wall of the first connecting tube (110), and an inclined rod (191) is installed at one end of the sliding rod (190) located inside the first connecting tube (110). A lever (192) is arranged inside the first connecting tube (110), and 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), and the end of the fulcrum rod (193) is connected to the inner wall of the first connecting tube (110). The end of the lever (192) that is tilted downward is close to the inclined rod (191). A second telescopic rod (194) is installed on the lower side of the piston (160). The second telescopic rod (194) has the same structure as the first telescopic rod (161), and a fourth spring (195) is arranged on the inner side of the second telescopic rod (194).

8. The data collection device for building fire safety hazards according to claim 7, characterized in that: A third wedge block (200) is installed at one end of the sliding rod (190) located outside the first connecting tube (110), and a limiting rod (201) is slidably inserted into the side of the branch tube (150) and the first wedge block (130). A fourth wedge block (202) is installed at the end of the limiting rod (201), and the fourth wedge block (202) is used in conjunction with the third wedge block (200). A sliding block (203) is installed on the inclined surface of the third wedge block (200), and a sliding groove (204) used in conjunction with the sliding block (203) is opened on the inclined surface of the fourth wedge block (202), and the sliding block (203) is slidably inserted in the sliding groove (204).

9. The data collection device for building fire safety hazards according to claim 5, characterized in that: A shell (210) is installed at the end of the second connecting tube (120); an overflow hole (211) communicating with the second connecting tube (120) is provided in the middle of the shell (210); a rotating shaft (212) is rotatably plugged into the lower side of the shell (210); a rotating gear (213) is installed at one end of the rotating shaft (212) located inside the shell (210); a gear ring (214) is rotatably provided inside the shell (210); the shell (210) ) is also rotatably provided on the inner side thereof, the rotating gear (213) is meshed with the outer ring of the gear ring (214), and the blocking piece (215) is meshed with the inner ring of the gear ring (214), the number of the blocking pieces (215) is set to be a plurality, and the plurality of blocking pieces (215) are evenly arranged in the circumferential direction in the gear ring (214), and in the initial state, the plurality of blocking pieces (215) are in contact with each other to close the overflow hole (211).

10. A data collection device for building fire safety hazards according to claim 9, characterized in that: A shaft (220) is mounted on the outside of the support rod (162), and a first bevel gear (221) is rotatably mounted on the end of the shaft (220). A second bevel gear (222) is mounted on one end of the rotating shaft (212) located inside the second connecting tube (120), and the second bevel gear (222) meshes with the first bevel gear (221). A torsion spring (223) is sleeved on the outside of the rotating shaft (212), and two ends of the torsion spring (223) are respectively connected to the housing (210) and the rotating shaft (212). A rack (224) is mounted on the upper side of the piston (160), and the rack (224) intermittently meshes with the first bevel gear (221).

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