CN209820958U - Water pressure resistance performance testing device for simultaneously detecting indoor fire hydrant and fire-fighting lance - Google Patents
Water pressure resistance performance testing device for simultaneously detecting indoor fire hydrant and fire-fighting lance Download PDFInfo
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- CN209820958U CN209820958U CN201920616973.6U CN201920616973U CN209820958U CN 209820958 U CN209820958 U CN 209820958U CN 201920616973 U CN201920616973 U CN 201920616973U CN 209820958 U CN209820958 U CN 209820958U
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Abstract
The utility model relates to a detect water pressure resistance performance verifying attachment of indoor fire hydrant and fire-fighting lance simultaneously belongs to fire-fighting equipment technical field. The testing device comprises a fire hydrant, a fire-fighting lance interface, a reducing connecting pipe, an exhaust valve, a drain valve, a main water pipe, a water distribution pipe, a test bed, a supporting cabinet body, a test bed cover, a fire-fighting lance, a manual pressure test pump and a connecting hose. The device can simultaneously test the water pressure resistance strength and the sealing performance of the fire hydrant and the fire-fighting lance, and completely meets the performance requirements of national standard GB3445-2018 and national standard GB 8181-2005. The device is a testing device which is simple and convenient to operate and repeatable in test result. This device reducing connecting pipe delivery port internal diameter is 50, 65 or 80mm, can detect 50, 65 or 80 model fire hydrant simultaneously, perhaps detects 50, 65 type fire-fighting lance, solves prior art and can only carry out the performance inspection to single indoor fire hydrant or fire-fighting lance.
Description
Technical Field
The utility model relates to a detect water pressure resistance performance verifying attachment of indoor fire hydrant and fire-fighting lance simultaneously belongs to fire-fighting equipment technical field.
Background
Indoor fire hydrant and fire-fighting lance are the very important fire-fighting equipments in the city, distribute in each corner of city. If the fire hydrant and the fire-fighting lance cannot supply fire-fighting water normally due to the quality problem of the fire hydrant and the fire-fighting lance, great loss can be caused. At present, the national quality detection of fire hydrants adopts the 5.5.1 sealing performance and the 5.5.2 water pressure strength in the national standard GB3445-2018 to carry out detection, and the quality detection of fire-fighting lances adopts two items of the 5.8 sealing performance and the 5.9 water pressure strength in the national standard GB8181-2005 to carry out detection, so that the detection of the water pressure strength and the sealing performance of the fire hydrants and the fire-fighting lances is an important quality judgment standard.
The patent application number is 2016110652886, the name is a fire hydrant hydraulic seal test device, and discloses a device which is convenient to operate and has better sealing performance. The fire hydrant hydraulic sealing test device comprises a hydraulic test bed, a pneumatic cylinder, a lock bolt, a water inlet pipe, a pressurizing water pipe and a pressurizing pump; the hydraulic test bed comprises support legs, a table top and a fire hydrant positioning piece. The device mainly drives a plurality of lock bolts to horizontally extend out of the upper surface of a flange plate at the bottom of the fire hydrant through the pneumatic cylinder so as to lock the fire hydrant, and the device has high locking strength and better sealing performance.
Patent application No. 2017209141254 entitled hydrant pressure test tool. The tool comprises a quick joint of a fire water gun, a reducing connecting piece, an external thread connecting piece, a three-way connecting piece, a pressure gauge and a pressure relief ball valve. The tool can save a large amount of water resources, reduces potential safety hazards, achieves expected effects, and has good popularization significance.
The patent application number is 2015207035410, and the name is fire hydrant comprehensive test platform. The fire hydrant comprehensive test bench comprises an operating platform, an indoor fire hydrant test fixture and a fire fighting interface test fixture, wherein the indoor fire hydrant test fixture and the fire fighting interface test fixture are fixed on the operating platform; the upper side surface of the operating platform is provided with a water pump constant-pressure water supply controller and an axial shock-proof precision pressure gauge; the lower side of the operating platform is respectively provided with a fire hydrant test control box and an interface test control box, and the operating platform surface is also provided with a drain valve, a water inlet valve and an oil pressure gauge; the utility model discloses but testboard simultaneous detection room fire hydrant and interface have and detect safe and reliable, and is quick, and the gas tightness standard is unified, has avoided the leak of artifical manual detection greatly, makes the finished product qualification rate very increase.
The patent application number is 2017209722604, and the name is a fire hydrant water level pressure detection device. The fire hydrant water level pressure detection device consists of a water feeding tee joint, a water inlet valve, a high-level water feeding valve, a high-level extension pipe and a low-level extension pipe, wherein a fire hydrant connector is arranged on the water inlet valve, a high-level water pressure meter and a high-level water outlet pipe are arranged on the high-level extension pipe, and a low-level water pressure meter and a low-level water outlet pipe are arranged on the low-level extension pipe. The device simple structure, portable also are convenient for connect and dismantle simultaneously, are adapted to the detection of various fire hydrants to can detect out the high-order fire hydrant detection device to the water pressure that sprays of different positions of flat position department.
Patent application No. 201220397839X entitled underground fire hydrant with pressure gauge. This underground fire hydrant with manometer, including the fire hydrant body, fire hydrant body one end is provided with the water source hole with delivery pipe connection, and the other end is provided with and is connected the water outlet with fire hose, and its fire hydrant body is inside to be provided with out water control assembly, and it includes a stagnant water valve to go out water control assembly, and the stagnant water valve sets up in the top in water source hole, is connected with the helical valve pole on the stagnant water valve, and threaded connection has the thrust cover on the helical valve pole, thrust cover and fire hydrant body threaded connection. This underground fire hydrant with manometer can realize short-term test fire control pressure, and simple convenient and fast is safe practical.
However, the above-mentioned testing device is only a single testing device for fire hydrant, and is not a testing device for simultaneously testing the water pressure resistance and the sealing performance of the indoor fire hydrant and the fire-fighting lance.
Disclosure of Invention
To the problem that above-mentioned prior art exists and not enough, the utility model provides a detect water pressure resistance performance verifying attachment of indoor fire hydrant and fire-fighting lance simultaneously. The testing device can simultaneously detect the pressure of the fire hydrant and the fire-fighting lance. The utility model discloses a following technical scheme realizes.
A water pressure resistance testing device for simultaneously detecting indoor fire hydrant and fire-fighting lance comprises a fire hydrant 1, a fire-fighting lance interface 2, a reducing connecting pipe 3, an exhaust valve 4, a drain valve 5, a main water pipe 6, a shunt pipe 7, a test bed 8, a supporting cabinet 9, a test bed cover 10, a fire-fighting lance 11, a manual pressure test pump 12 and a connecting hose 13, wherein the top of the supporting cabinet 9 is provided with the test bed 8 with a hollow inner part, the top of the test bed 8 is provided with the test bed cover 10 which can be opened and closed, the test bed 8 is internally provided with the transverse main water pipe 6 which passes through one side surface of the test bed 8, the tail end of the main water pipe 6 positioned in the test bed 8 is provided with the exhaust valve 4, the other side of the main water pipe 6 is connected with the manual pressure test pump 12 through the connecting hose 13, the main water pipe 6 is provided with a plurality of vertical shunt pipes 7 which are uniformly distributed and communicated, the water outlet of each water distribution pipe 7 is communicated with a reducing connecting pipe 3, each reducing connecting pipe 3 penetrates through the front side surface of the test bed 8, an external thread is arranged at the water outlet of each reducing connecting pipe 3, an internal thread is arranged at the water inlet of the fire hydrant 1, and the fire hydrant 1 is connected with the external thread at the water outlet of one reducing connecting pipe 3 through the internal thread; the water outlet of the reducing connecting pipe 3 is connected with a fire-fighting lance 11 through a fire-fighting lance interface 2.
Fire-fighting lance interface 2 passes through internal thread and the 3 water outlet department external screw thread connection of reducing connecting pipe, and fire-fighting lance interface buckle 14 on the fire-fighting lance interface 2 can dismantle with the fire-fighting lance buckle 16 on the fire-fighting lance 11 and link to each other.
The inner diameter of the water outlet of the reducing connecting pipe 3 is 50 mm, 65 mm or 80 mm.
The test bed 8 is a square seat, the length of the square seat is 800-1500 mm, and the width of the square seat is 600-1200 mm.
A supporting table cabinet door with two sides capable of being opened and closed is arranged on the front side face of the supporting cabinet body 9, and required articles are placed in the supporting cabinet body 9 in a hollow mode.
When the fire-fighting lance 11 is used for a pressure test, the fire-fighting lance head 15 of the fire-fighting lance 11 is sealed by a rubber plug.
The maximum pressure of the manual pressure test pump 12 is larger than 4.8MPa, and the accuracy of a pressure gauge is 1.5 grade and above.
The water pressure resistance strength of the fire-fighting lance interface 2, the reducing connecting pipe 3, the exhaust valve 4, the drain valve 5, the main water pipe 6, the water distribution pipe 7 and the connecting hose 13 is more than 4.8 MPa.
This detect indoor fire hydrant and fire-fighting lance's water pressure resistance capability verifying attachment's theory of operation simultaneously does:
1. looking up the codes of the surfaces of the fire hydrant 1 and the fire-fighting lance 11, and looking up the rated working pressure of the sample by contrasting with the national standard;
2. sealing a fire-fighting lance head 15 of a fire-fighting lance 11 by using a rubber plug, connecting the fire-fighting lance head to one of the reducing connecting pipes 3 through a fire-fighting lance interface 2, and connecting the fire hydrant 1 with an external thread at a water outlet of one of the reducing connecting pipes 3 through an internal thread;
3. connecting a manual pressure test pump 12 to a main water pipe 6 through a connecting hose 13, starting the manual pressure test pump 12 and an exhaust valve 4, closing all drain valves 5, supplying water to a test bed 8 and exhausting air in a pipeline, and closing the exhaust valve 4 after the pipeline is filled with water;
4. opening a drain valve 5 connected with a shunt pipe 7 of the fire hydrant 1, pressurizing to rated working pressure by a manual pressure test pump 12, maintaining the pressure for 2min, checking whether the fire hydrant 1 and each sealing part leak or not, slowly adding the manual pressure test pump 12 to 1.5 times of the rated working pressure, maintaining the pressure for 2min, checking whether cracks or fractures or residual deformation influencing normal use occur or not, and then closing the drain valve 5; opening a drain valve 5 on a water diversion pipe 7 connected with a fire-fighting lance 11, pressurizing to rated working pressure by a manual pressure test pump 12, maintaining the pressure for 2min, checking whether the fire-fighting lance 11 and each sealed part leak or not, slowly adding the manual pressure test pump 12 to 1.5 times of the rated working pressure, maintaining the pressure for 2min, and checking whether cracks, fractures or residual deformation influencing normal use occur or not;
5. and (3) after the test is finished, releasing the pressure by using the manual pressure test pump 12, opening the exhaust valve 4, taking down the fire hydrant 1 and the fire-fighting lance 11, and cleaning the test bed 8.
In the process, the inner diameter of the water outlet of the reducing connecting pipe 3 is 50 mm, 65 mm or 80mm, so that fire hydrants of 50 models, 65 models or 80 models can be detected simultaneously, or fire water guns of 50 models or 65 models can be detected simultaneously.
The utility model has the advantages that:
(1) the device can simultaneously test the water pressure resistance strength and the sealing performance of the fire hydrant and the fire-fighting lance, and completely meets the performance requirements of national standard GB3445-2018 and national standard GB 8181-2005.
(2) The device is a testing device which is simple and convenient to operate and repeatable in test result.
(3) This device reducing connecting pipe delivery port internal diameter is 50, 65 or 80mm, can detect 50, 65 or 80 models fire hydrant simultaneously, perhaps detects 50, 65 models fire-fighting lance, solves prior art and can only carry out pressure test to single fire hydrant and detect.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic view of the support table door of the present invention in front view when opened;
fig. 5 is a partial schematic view of the present invention;
fig. 6 is a schematic side view of the present invention;
FIG. 7 is a schematic view of the interface structure of the fire-fighting lance of the present invention;
FIG. 8 is a schematic structural view A of the fire-fighting lance of the present invention;
FIG. 9 is a schematic structural view B of the fire-fighting lance of the present invention;
fig. 10 is a schematic structural view C of the fire-fighting lance of the present invention.
In the figure: the fire-fighting water gun comprises a fire hydrant 1, a fire-fighting water gun interface 2, a variable-diameter connecting pipe 3, an exhaust valve 4, a drain valve 5, a main water pipe 6, a branch water pipe 7, a test bed 8, a support cabinet 9, a test bed cover 10, a fire-fighting water gun 11, a manual pressure test pump 12, a connecting hose 13, a fire-fighting water gun interface buckle 14, a fire-fighting water gun head 15 and a fire-fighting water gun buckle 16.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Example 1
The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance comprises a fire hydrant 1, a fire-fighting lance interface 2, a reducing connecting pipe 3, an exhaust valve 4, a drain valve 5, a main water pipe 6, a shunt pipe 7, a test bed 8, a support cabinet 9, a test bed cover 10, a fire-fighting lance 11, a manual pressure test pump 12 and a connecting hose 13, wherein the top of the support cabinet 9 is provided with the test bed 8 with a hollow inner part, the top of the test bed 8 is provided with the test bed cover 10 capable of being opened and closed, the test bed 8 is internally provided with the transverse main water pipe 6 penetrating through the side surface of one side of the test bed 8, the tail end of the main water pipe 6 positioned in the test bed 8 is provided with the exhaust valve 4, the other side of the main water pipe 6 is connected with the manual pressure test pump 12 through the connecting hose 13, the main water pipe 6 is provided with a plurality of vertically arranged shunt pipes, the water outlet of each water distribution pipe 7 is communicated with a reducing connecting pipe 3, each reducing connecting pipe 3 penetrates through the front side surface of the test bed 8, an external thread is arranged at the water outlet of each reducing connecting pipe 3, an internal thread is arranged at the water inlet of the fire hydrant 1, and the fire hydrant 1 is connected with the external thread at the water outlet of one reducing connecting pipe 3 through the internal thread; the water outlet of the reducing connecting pipe 3 is connected with a fire-fighting lance 11 through a fire-fighting lance interface 2.
The fire-fighting lance interface 2 is connected with the external thread at the water outlet of the reducing connecting pipe 3 through an internal thread, and a fire-fighting lance interface buckle 14 on the fire-fighting lance interface 2 is detachably connected with a fire-fighting lance buckle 16 on the fire-fighting lance 11; the inner diameter of the water outlet of the reducing connecting pipe 3 is 50 mm, 65 mm or 80 mm; the test bed 8 is a square seat, the length of the square seat is 1500mm, and the width of the square seat is 1200 mm; a supporting table cabinet door with two sides capable of being opened and closed is arranged on the front side surface of the supporting cabinet body 9, and required articles are placed in the supporting cabinet body 9 in a hollow mode; when the fire-fighting lance 11 is used for a pressure test, the fire-fighting lance head 15 of the fire-fighting lance 11 is sealed by a rubber plug; the maximum pressure of the manual pressure test pump 12 is more than 4.8MPa, and the precision of a pressure gauge is 1.5 grade and above of the prior manual pressure test pump; the water pressure resistance strength of the fire-fighting lance interface 2, the reducing connecting pipe 3, the exhaust valve 4, the drain valve 5, the main water pipe 6, the water distribution pipe 7 and the connecting hose 13 is more than 4.8 MPa.
Example 2
As shown in fig. 1 to 10, the device for simultaneously detecting the water pressure resistance of an indoor fire hydrant and a fire-fighting lance comprises a fire hydrant 1, a fire-fighting lance interface 2, a reducing connecting pipe 3, an exhaust valve 4, a drain valve 5, a main water pipe 6, a diversion pipe 7, a test bed 8, a supporting cabinet 9, a test bed cover 10, a fire-fighting lance 11, a manual pressure test pump 12 and a connecting hose 13, wherein the top of the supporting cabinet 9 is provided with the test bed 8 which is hollow inside, the top of the test bed 8 is provided with the test bed cover 10 which can be opened and closed, the inside of the test bed 8 is provided with the transverse main water pipe 6 which passes through one side surface of the test bed 8, the tail end of the main water pipe 6 which is positioned inside the test bed 8 is provided with the exhaust valve 4, the other side of the main water pipe 6 is connected with the manual pressure test pump 12 through the connecting hose 13, the main water pipe 6 is provided with 3 vertical diversion pipes 7 which, the water outlet of each water distribution pipe 7 is communicated with a reducing connecting pipe 3, each reducing connecting pipe 3 penetrates through the front side surface of the test bed 8, an external thread is arranged at the water outlet of each reducing connecting pipe 3, an internal thread is arranged at the water inlet of the fire hydrant 1, and the fire hydrant 1 is connected with the external thread at the water outlet of one reducing connecting pipe 3 through the internal thread; the water outlet of the reducing connecting pipe 3 is connected with a fire-fighting lance 11 through a fire-fighting lance interface 2.
The fire-fighting lance interface 2 is connected with the external thread at the water outlet of the reducing connecting pipe 3 through an internal thread, and a fire-fighting lance interface buckle 14 on the fire-fighting lance interface 2 is detachably connected with a fire-fighting lance buckle 16 on the fire-fighting lance 11; the inner diameter of the water outlet of the reducing connecting pipe 3 is 50 mm, 65 mm or 80 mm; the test bed 8 is a square seat, the length of the square seat is 800mm, and the width of the square seat is 600 mm; a supporting table cabinet door with two sides capable of being opened and closed is arranged on the front side surface of the supporting cabinet body 9, and required articles are placed in the supporting cabinet body 9 in a hollow mode; when the fire-fighting lance 11 is used for a pressure test, the fire-fighting lance head 15 of the fire-fighting lance 11 is sealed by a rubber plug; the maximum pressure of the manual pressure test pump 12 is more than 4.8MPa, and the precision of a pressure gauge is 1.5 grade and above of the prior manual pressure test pump; the water pressure resistance strength of the fire-fighting lance interface 2, the reducing connecting pipe 3, the exhaust valve 4, the drain valve 5, the main water pipe 6, the water distribution pipe 7 and the connecting hose 13 is more than 4.8 MPa.
Example 3
As shown in fig. 1 to 10, the device for simultaneously detecting the water pressure resistance of an indoor fire hydrant and a fire-fighting lance comprises a fire hydrant 1, a fire-fighting lance interface 2, a reducing connecting pipe 3, an exhaust valve 4, a drain valve 5, a main water pipe 6, a diversion pipe 7, a test bed 8, a supporting cabinet 9, a test bed cover 10, a fire-fighting lance 11, a manual pressure test pump 12 and a connecting hose 13, wherein the top of the supporting cabinet 9 is provided with the test bed 8 which is hollow inside, the top of the test bed 8 is provided with the test bed cover 10 which can be opened and closed, the inside of the test bed 8 is provided with the transverse main water pipe 6 which passes through one side surface of the test bed 8, the tail end of the main water pipe 6 which is positioned inside the test bed 8 is provided with the exhaust valve 4, the other side of the main water pipe 6 is connected with the manual pressure test pump 12 through the connecting hose 13, the main water pipe 6 is provided with 3 vertical diversion pipes 7 which, the water outlet of each water distribution pipe 7 is communicated with a reducing connecting pipe 3, each reducing connecting pipe 3 penetrates through the front side surface of the test bed 8, an external thread is arranged at the water outlet of each reducing connecting pipe 3, an internal thread is arranged at the water inlet of the fire hydrant 1, and the fire hydrant 1 is connected with the external thread at the water outlet of one reducing connecting pipe 3 through the internal thread; the water outlet of the reducing connecting pipe 3 is connected with a fire-fighting lance 11 through a fire-fighting lance interface 2.
The fire-fighting lance interface 2 is connected with the external thread at the water outlet of the reducing connecting pipe 3 through an internal thread, and a fire-fighting lance interface buckle 14 on the fire-fighting lance interface 2 is detachably connected with a fire-fighting lance buckle 16 on the fire-fighting lance 11; the inner diameter of the water outlet of the reducing connecting pipe 3 is 50 mm, 65 mm or 80 mm; the test bed 8 is a square seat, the length of the square seat is 1000mm, and the width of the square seat is 800 mm; a supporting table cabinet door with two sides capable of being opened and closed is arranged on the front side surface of the supporting cabinet body 9, and required articles are placed in the supporting cabinet body 9 in a hollow mode; when the fire-fighting lance 11 is used for a pressure test, the fire-fighting lance head 15 of the fire-fighting lance 11 is sealed by a rubber plug; the maximum pressure of the manual pressure test pump 12 is more than 4.8MPa, and the precision of a pressure gauge is 1.5 grade and above of the prior manual pressure test pump; the water pressure resistance strength of the fire-fighting lance interface 2, the reducing connecting pipe 3, the exhaust valve 4, the drain valve 5, the main water pipe 6, the water distribution pipe 7 and the connecting hose 13 is more than 4.8 MPa.
The present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit and scope of the present invention by those skilled in the art.
Claims (8)
1. The utility model provides a detect indoor fire hydrant and fire-fighting lance's water pressure resistance performance verifying attachment simultaneously, its characterized in that: comprises a fire hydrant (1), a fire-fighting lance interface (2), a reducing connecting pipe (3), an exhaust valve (4), a drain valve (5), a main water pipe (6), a shunt pipe (7), a test bed (8), a supporting cabinet body (9), a test bed cover (10), a fire-fighting lance (11), a manual pressure test pump (12) and a connecting hose (13), wherein the top of the supporting cabinet body (9) is provided with the test bed (8) with a hollow inner part, the top of the test bed (8) is provided with the test bed cover (10) capable of being opened and closed, the test bed (8) is internally provided with a transverse main water pipe (6) penetrating through the side surface of one side of the test bed (8), the tail end of the main water pipe (6) positioned inside the test bed (8) is provided with the exhaust valve (4), the other side of the main water pipe (6) is connected with the manual pressure test pump (12) through the connecting hose (13), the main water pipe (6) is provided with a plurality of, each water distribution pipe (7) is provided with a drain valve (5), the water outlet of each water distribution pipe (7) is communicated with a reducing connecting pipe (3), each reducing connecting pipe (3) penetrates through the front side surface of the test bed (8), the water outlet of each reducing connecting pipe (3) is provided with an external thread, the water inlet of the fire hydrant (1) is provided with an internal thread, and the fire hydrant (1) is connected with the external thread at the water outlet of one reducing connecting pipe (3) through the internal thread; the water outlet of the reducing connecting pipe (3) is connected with a fire-fighting lance (11) through a fire-fighting lance interface (2).
2. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: fire-fighting lance interface (2) are connected with reducing connecting pipe (3) delivery port department external screw thread through the internal thread, and fire-fighting lance interface buckle (14) on fire-fighting lance interface (2) can be dismantled with fire-fighting lance buckle (16) on fire-fighting lance (11) and link to each other.
3. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: the inner diameter of the water outlet of the reducing connecting pipe (3) is 50 mm, 65 mm or 80 mm.
4. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: the test bed (8) is a square seat, the length of the square seat is 800-1500 mm, and the width of the square seat is 600-1200 mm.
5. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: a supporting table cabinet door with two sides capable of being opened and closed is arranged on the front side face of the supporting cabinet body (9), and required articles are placed in the supporting cabinet body (9) in a hollow mode.
6. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: when the fire-fighting lance (11) is used for a pressure test, the fire-fighting lance head (15) of the fire-fighting lance (11) is sealed by a rubber plug.
7. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: the maximum pressure of the manual pressure test pump (12) is more than 4.8MPa, and the accuracy of the pressure gauge is 1.5 grade and above.
8. The device for simultaneously detecting the water pressure resistance of the indoor fire hydrant and the fire-fighting lance according to claim 1, wherein: the water pressure resistant strength of the fire-fighting lance interface (2), the reducing connecting pipe (3), the exhaust valve (4), the drain valve (5), the main water pipe (6), the water distribution pipe (7) and the connecting hose (13) is more than 4.8 MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616973.6U CN209820958U (en) | 2019-04-30 | 2019-04-30 | Water pressure resistance performance testing device for simultaneously detecting indoor fire hydrant and fire-fighting lance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920616973.6U CN209820958U (en) | 2019-04-30 | 2019-04-30 | Water pressure resistance performance testing device for simultaneously detecting indoor fire hydrant and fire-fighting lance |
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| CN209820958U true CN209820958U (en) | 2019-12-20 |
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| CN201920616973.6U Active CN209820958U (en) | 2019-04-30 | 2019-04-30 | Water pressure resistance performance testing device for simultaneously detecting indoor fire hydrant and fire-fighting lance |
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