CN220695742U

CN220695742U - Fire hydrant pressure detection device

Info

Publication number: CN220695742U
Application number: CN202322215043.9U
Authority: CN
Inventors: 李斌; 徐涛; 周文武
Original assignee: Zhejiang Blue Eagle Cloud Fire Safety Technology Co ltd
Current assignee: Zhejiang Blue Eagle Cloud Fire Safety Technology Co ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-04-02
Anticipated expiration: 2033-08-17

Abstract

The utility model relates to a fire hydrant pressure detection device, which comprises a connecting pipe and a pressure measuring pipe, wherein the output end of the connecting pipe is communicated with the input end of the pressure measuring pipe, a three-way valve is arranged at the output end of the connecting pipe, one end of the three-way valve is communicated with the pressure measuring pipe, an exhaust component is arranged at the other end of the three-way valve, the pressure measuring pipe is internally provided with a piston which can slide along the length direction of the pressure measuring pipe, the piston divides the pressure measuring pipe into a left cavity and a right cavity, the bottom of the pressure measuring pipe is connected with a storage pipe through the arranged connecting component, the left end of the storage pipe is provided with a liquid injection fine adjustment mechanism, the pressure measuring pipe is provided with a pressure gauge, the detection end of the pressure gauge is positioned in the right cavity, the right end of the storage pipe is communicated with an end pipe, the top of the end pipe is communicated with the right end of the right cavity, the left side of the bottom of the pressure measuring pipe is connected with a liquid discharge pipe, and the liquid discharge pipe is provided with a first control valve; the design of the piston, the exhaust assembly, the storage tube and the liquid injection fine adjustment mechanism reduces the maintenance frequency of the pressure measuring tube and reduces the waste of water resources.

Description

Fire hydrant pressure detection device

Technical Field

The utility model relates to the technical field of fire hydrant detection equipment, in particular to a fire hydrant pressure detection device.

Background

The testing method for the hydrostatic pressure of the hydrant port comprises the steps of connecting a testing device with a pressure gauge to a hydrant outlet, opening a hydrant valve, and observing the pressure value on the pressure gauge; standard requirements: the pressure of the hydrant opening meets the design requirement and is not more than 1.00MPa; when the building height is not more than 100m, the hydrostatic pressure of the fire hydrant at the most adverse point is not lower than 0.07Mpa, and when the building height is more than 100m, the hydrostatic pressure of the fire hydrant at the most adverse point is not lower than 0.15Mpa.

At present, in the detection process of the hydrant port, water in the hydrant is required to be filled into the pressure measuring pipe, the water in the pressure measuring pipe is directly discharged after the detection is finished, so that water resource is wasted, the water quality in the hydrant is generally poor, the pressure measuring pipe and a pressure gauge detection end positioned in the pressure measuring pipe can be polluted by the water quality, maintenance is generally required after the detection is finished, and the service life of the pressure measuring pipe is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a fire hydrant pressure detection device so as to solve the technical problems in the background art.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a fire hydrant pressure detection device, includes connecting pipe and piezometer tube, the output of connecting pipe with the input intercommunication of piezometer tube, be provided with the three-way valve on the output of connecting pipe, the one end of three-way valve with the piezometer tube intercommunication is provided with exhaust assembly on the other end of three-way valve, is provided with in the piezometer tube and can follow the gliding piston of piezometer tube length direction, and the piston separates into left cavity and right cavity in with the piezometer tube, and the bottom of piezometer tube is connected with the accumulator tube through the coupling assembling who sets up, and the left end of accumulator tube is provided with annotates liquid fine-tuning, is provided with the manometer on the piezometer tube, and the detection end of manometer is located right cavity, and the right-hand member intercommunication of accumulator tube has the end pipe, the top of end pipe communicates with the right cavity, and the bottom left side of piezometer tube is connected with the fluid-discharge tube, is provided with first control valve on the fluid-discharge tube.

Preferably, the exhaust assembly comprises a shell, a floating body, a sealing ring, a guide rod and a plug, wherein the shell is connected to the other end of the three-way valve in a threaded mode, the floating body is slidably connected in the shell along the vertical direction, the top of the guide rod is fixed at the top in the shell, the bottom of the guide rod penetrates through the floating body, the guide rod is slidably connected with the floating body, two groups of exhaust ports are symmetrically arranged on the upper end face of the shell, the bottom input end of the exhaust port is communicated with the inside of the shell, the sealing ring is arranged on the bottom input end of the exhaust port, and the plug is arranged at the position, corresponding to the exhaust port, of the upper end face of the floating body.

Further, the bottom in the shell is connected with a check ring in a threaded manner, the bottom of the floating body is inserted into the check ring, and two groups of grooves are formed in the lower end face of the check ring.

Preferably, the connecting assembly comprises a sliding seat, a fixing strip and a limiting end head, the sliding seat is fixed on the upper end face of the storage tube, the fixing strip is fixed on the lower end face of the pressure measuring tube, a through-long sliding groove is formed in the lower end face of the fixing strip along the length direction of the fixing strip, the top of the sliding seat is slidably connected in the sliding groove, the limiting end heads are provided with two groups, the two groups of limiting end heads are respectively connected in the sliding grooves on the two sides of the sliding seat in a bolt mode, and one side of the limiting end head is attached to the sliding seat.

Further, the chute is T-shaped, and a plurality of connecting holes are formed in the chute.

Preferably, the liquid injection fine adjustment mechanism comprises an end cover, a sealing plate, a screw rod, a rotating handle, a limit ring and a liquid injection pipe, wherein an opening is formed in the left end of the storage pipe, the end cover is connected to the opening in a threaded mode, the limit ring is concentrically fixed in the storage pipe, the sealing plate is slidably connected in the storage pipe between the limit ring and the end cover, sealing treatment is conducted between the sealing plate and the storage pipe, one end of the screw rod is concentrically connected to one side of the sealing plate in a rotating mode, the screw rod is connected with the end cover in a threaded mode, the other end of the screw rod penetrates through the end cover and is axially fixed on the rotating handle, the output end of the liquid injection pipe is communicated with the storage pipe on the right side of the limit ring, and a second control valve is arranged at the input end of the liquid injection pipe.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the design of the piston, the exhaust component, the storage pipe and the liquid injection fine adjustment mechanism can be used for injecting liquid with certain pressure into the storage pipe through the storage pipe, the pressure value in the storage pipe is adjusted to be 90% of the standard value through the liquid injection fine adjustment mechanism, at the moment, the right cavity of the pressure measuring pipe is consistent with the pressure value of the storage pipe, after the fire hydrant to be detected is communicated with the pressure measuring pipe, if the hydrostatic pressure of the fire hydrant port to be detected cannot reach the standard value, the value of the pressure gauge is unchanged, and when the hydrostatic pressure of the fire hydrant port reaches the standard value, the value of the pressure gauge is required to display the standard value.

Drawings

FIG. 1 is a schematic view of the overall structure of a hydrant pressure detecting apparatus according to the present utility model;

fig. 2 is a schematic structural view of the retainer ring.

The reference numerals in the figures illustrate:

1. a connecting pipe; 2. a pressure measuring tube; 3. a three-way valve; 4. an exhaust assembly; 5. a piston; 201. a left chamber; 202. a right chamber; 6. a connection assembly; 7. a storage tube; 8. a liquid injection fine adjustment mechanism; 9. a pressure gauge; 10. an end pipe; 11. a liquid discharge pipe; 12. a first control valve; 401. a housing; 402. a floating body; 403. a seal ring; 404. a guide rod; 405. a plug; 406. a retainer ring; 407. a groove; 408. an exhaust port; 601. a slide; 602. a fixing strip; 603. a limiting end head; 604. a chute; 605. a connection hole; 801. an end cap; 802. a sealing plate; 803. a screw; 804. rotating the handle; 805. a limit ring; 806. a liquid injection pipe; 701. an opening; 807. and a second control valve.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1 to 2, a fire hydrant pressure detection device includes a connection pipe 1 and a pressure measurement pipe 2, wherein an output end of the connection pipe 1 is communicated with an input end of the pressure measurement pipe 2, a three-way valve 3 is arranged at an output end of the connection pipe 1, one end of the three-way valve 3 is communicated with the pressure measurement pipe 2, an exhaust component 4 is arranged at the other end of the three-way valve 3, a piston 5 capable of sliding along a length direction of the pressure measurement pipe 2 is arranged in the pressure measurement pipe 2, the piston 5 divides the pressure measurement pipe 2 into a left cavity 201 and a right cavity 202, a storage pipe 7 is connected to the bottom of the pressure measurement pipe 2 through the arranged connection component 6, a liquid injection fine adjustment mechanism 8 is arranged at the left end of the storage pipe 7, a pressure gauge 9 is arranged on the pressure measurement pipe 2, a detection end of the pressure gauge 9 is positioned in the right cavity 202, a right end of the storage pipe 7 is communicated with an end pipe 10, the top of the end pipe 10 is communicated with the right end of the right cavity 202, a liquid drain pipe 11 is connected to the left side of the bottom of the pressure measurement pipe 2, and a first control valve 12 is arranged on the liquid drain pipe 11;

the liquid of accessible accumulator tube 7 is poured into accumulator tube 7 to adjust the pressure value in the accumulator tube 7 through annotating liquid fine setting mechanism 8 and keep 90% of standard value, the right cavity 202 of pressure measurement pipe 2 is unanimous with accumulator tube 7 pressure value this moment, after the fire hydrant that waits to detect and pressure measurement pipe 2 communicate, if the hydrostatic pressure of the fire hydrant mouth that waits to detect does not reach the standard value, then manometer numerical value does not change, and when the hydrostatic pressure of fire hydrant mouth reaches the standard value, manometer numerical value should show the standard value this moment, this kind of measurement mode, water in the fire hydrant only a small amount enters into pressure measurement pipe 2 in, and the water in the fire hydrant does not contact with the work end of manometer 9, wait to detect the water source can not pollute the work end of pressure measurement pipe 2, reduce the frequency of pressure measurement pipe 2 maintenance, prolong the life of pressure measurement pipe 2, the water yield that gets into in pipe 2 is very little moreover, reduce the waste of water resource.

In this embodiment, the exhaust component 4 includes a housing 401, a floating body 402, a sealing ring 403, a guide rod 404, and a plug 405, where the housing 401 is screwed to the other end of the three-way valve 3, the floating body 402 is slidably connected in the housing 401 along a vertical direction, the top end of the guide rod 404 is fixed at the top of the housing 401, the bottom end of the guide rod 404 passes through the floating body 402, the guide rod 404 is slidably connected with the floating body 402, two groups of exhaust ports 408 are symmetrically arranged on the upper end surface of the housing 401, the bottom input end of the exhaust ports 408 is connected with the housing 401, the sealing ring 403 is arranged on the bottom input end of the exhaust ports 408, and the plug 405 is arranged on the upper end surface of the floating body 402 corresponding to the position of the exhaust ports 408; when air exists in the three-way valve 3, the floating body 402 falls under the action of dead weight, gas is discharged through the gas outlet 408, after the gas in the three-way valve 3 is discharged, liquid generates buoyancy to the floating body 402, the floating body 402 is lifted to move upwards, the gas outlet 408 is blocked by the plug 405 under the guidance of the guide rod 404, and only the gas is discharged by the gas discharging component 4.

In the embodiment, a retainer ring 406 is connected to the bottom of the housing 401 in a threaded manner, the bottom of the floating body 402 is inserted onto the retainer ring 406, and two groups of grooves 407 are formed in the lower end face of the retainer ring 406; the retainer ring 406 limits the movable range of the floating body 402, so that the floating body 402 is prevented from being blocked into the three-way valve 3, and the normal use of the floating body 402 is ensured.

In this embodiment, the connecting component 6 includes a sliding seat 601, a fixing strip 602, and limiting ends 603, the sliding seat 601 is fixed on the upper end surface of the storage tube 7, the fixing strip 602 is fixed on the lower end surface of the pressure measuring tube 2, a through-long sliding groove 604 is formed on the lower end surface of the fixing strip 602 along the length direction of the fixing strip, the top of the sliding seat 601 is slidably connected in the sliding groove 604, the limiting ends 603 are provided with two groups, the two groups of limiting ends 603 are respectively connected in the sliding grooves 604 on two sides of the sliding seat 601 by bolts, and one side of the limiting ends 603 is attached to the sliding seat 601; the end pipe 10 and the storage pipe 7 can be detachably connected in a threaded manner, when the storage pipe 7 needs to be taken down for maintenance, the limiting end head 603 is detached, the end pipe 10 and the storage pipe 7 are detached, then the storage pipe 7 is slid, and the end pipe is taken down.

In this embodiment, the chute 604 is T-shaped, and a plurality of connection holes 605 are provided in the chute 604; by the above design, the separation of the storage tube 7 from the pressure measuring tube 2 can be avoided.

In this embodiment, the liquid injection fine adjustment mechanism 8 includes an end cover 801, a sealing plate 802, a screw 803, a rotating handle 804, a limit ring 805, and a liquid injection tube 806, an opening 701 is provided at the left end of the storage tube 7, the end cover 801 is screwed onto the opening 701, the limit ring 805 is concentrically fixed in the storage tube 7, the sealing plate 802 is slidingly connected in the storage tube 7 between the limit ring 805 and the end cover 801, and a sealing process is performed between the sealing plate 802 and the storage tube 7, one end of the screw 803 is concentrically and rotatably connected at one side of the sealing plate 802, the screw 803 is screwed with the end cover 801, and the other end of the screw 803 is axially fixed on the rotating handle 804 through the end cover 801, the output end of the liquid injection tube 806 is communicated with the storage tube 7 on the right side of the limit ring 805, and the input end of the liquid injection tube 806 is provided with a second control valve 807; after the liquid is injected into the reservoir tube 7, the injection of the liquid may be stopped near the set pressure, the second control valve 807 may be closed, and the position of the sealing plate 802 in the reservoir tube 7 may be adjusted by rotating the screw 803 by rotating the handle 804, thereby fine-tuning the pressure value in the reservoir tube 7.

The working process of the utility model is as follows:

after the operator injects liquid into the storage tube 7, close to the set pressure, the injection of liquid can be stopped, the second control valve 807 is closed, the screw 803 is rotated by rotating the handle 804, thereby adjusting the position of the sealing plate 802 in the storage tube 7, thereby fine-adjusting the pressure value in the storage tube 7, the pressure value in the storage tube 7 is adjusted to be 90% of the standard value by the liquid injection fine-adjusting mechanism 8, at this time, the right chamber 202 of the pressure measuring tube 2 is consistent with the pressure value of the storage tube 7, after the fire hydrant to be detected is communicated with the pressure measuring tube 2, if the hydrostatic pressure of the fire hydrant port to be detected does not reach the standard value, the value of the pressure gauge does not change, and when the hydrostatic pressure of the fire hydrant port reaches the standard value, the value of the pressure gauge should be displayed at this time.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a fire hydrant pressure detection device, includes connecting pipe (1) and piezometer tube (2), the output of connecting pipe (1) with the input intercommunication of piezometer tube (2), its characterized in that: be provided with three-way valve (3) on the output of connecting pipe (1), the one end of three-way valve (3) with be provided with exhaust assembly (4) on the other end of three-way valve (3), be provided with in pressure measurement pipe (2) can follow pressure measurement pipe (2) length direction gliding piston (5), piston (5) are divided into left cavity (201) and right cavity (202) in with pressure measurement pipe (2), the bottom of pressure measurement pipe (2) is connected with accumulator tube (7) through coupling assembling (6) that set up, the left end of accumulator tube (7) is provided with annotates liquid fine setting mechanism (8), be provided with manometer (9) on pressure measurement pipe (2), the detection end of manometer (9) is located right cavity (202), and the right-hand member intercommunication of accumulator tube (7) has end pipe (10), the top of end pipe (10) is connected with the right-hand member intercommunication of right cavity (202), the bottom left side of pressure measurement pipe (2) is connected with fluid-discharge tube (11), be provided with first control valve (12) on fluid-discharge tube (11).

2. The hydrant pressure detection apparatus according to claim 1, wherein: the exhaust assembly (4) comprises a shell (401), a floating body (402), a sealing ring (403), a guide rod (404) and a plug (405), wherein the shell (401) is connected to the other end of the three-way valve (3) in a threaded mode, the floating body (402) is connected in the shell (401) in a sliding mode along the vertical direction, the top of the guide rod (404) is fixed at the top of the shell (401), the bottom of the guide rod (404) penetrates through the floating body (402), the guide rod (404) is connected with the floating body (402) in a sliding mode, two groups of exhaust ports (408) are symmetrically arranged on the upper end face of the shell (401), the bottom input end of the exhaust port (408) is connected with the shell (401) in an internal mode, the sealing ring (403) is arranged on the bottom input end of the exhaust port (408), and the plug (405) is arranged at the position, corresponding to the exhaust port (408), of the upper end face of the floating body (402).

3. The hydrant pressure detection apparatus according to claim 2, wherein: the inner bottom of the shell (401) is connected with a check ring (406) in a threaded mode, the bottom of the floating body (402) is inserted onto the check ring (406), and two groups of grooves (407) are formed in the lower end face of the check ring (406).

4. The hydrant pressure detection apparatus according to claim 1, wherein: coupling assembling (6) are including slide (601), fixed strip (602), spacing end (603), slide (601) are fixed in the up end of reserve tube (7), fixed strip (602) are fixed the lower terminal surface of pressure measurement tube (2), and the spout (604) of logical length has been seted up along its length direction to the lower terminal surface of fixed strip (602), and the top sliding connection of slide (601) is in spout (604), spacing end (603) are provided with two sets of, and two sets of spacing ends (603) are in spout (604) of slide (601) both sides bolted connection respectively, and one side and slide (601) laminating of spacing end (603).

5. The hydrant pressure detection apparatus according to claim 4, wherein: the sliding groove (604) is T-shaped, and a plurality of connecting holes (605) are arranged in the sliding groove (604).

6. The hydrant pressure detection apparatus according to claim 1, wherein: annotate liquid fine setting mechanism (8) including end cover (801), closing plate (802), screw rod (803), twist grip (804), spacing collar (805), annotate liquid pipe (806), the left end of storage tube (7) is provided with opening (701), end cover (801) threaded connection is to opening (701), spacing collar (805) are fixed in storage tube (7) with one heart, closing plate (802) sliding connection is in storage tube (7) between spacing collar (805) and end cover (801), and sealing treatment between closing plate (802) and storage tube (7), one end of screw rod (803) is connected in one side of closing plate (802) with the concentric rotation, screw rod (803) and end cover (801) threaded connection, and the other end of screw rod (803) passes end cover (801) axial fixity on twist grip (804), the output of annotating liquid pipe (806) communicates with storage tube (7) on the right side of spacing collar (805), and the input of annotating liquid pipe (806) is provided with second control valve (807).