CN111632321B

CN111632321B - Multifunctional fire-fighting water testing device nozzle

Info

Publication number: CN111632321B
Application number: CN202010490550.1A
Authority: CN
Inventors: 姜子华; 姜江伟; 赵俊鹏
Original assignee: Beijing Anfu Weiye Fire Safety Test Co ltd
Current assignee: North China Cathay Pacific Construction Group Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-09-10
Anticipated expiration: 2040-06-02
Also published as: CN111632321A

Abstract

The invention relates to a multifunctional fire-fighting water testing device nozzle which comprises a water testing nozzle and a pressure gauge arranged on the water testing nozzle, wherein a water inlet end of the water testing nozzle is communicated with a three-way valve, a cleaning mechanism for cleaning the interior of the water testing nozzle is arranged in the three-way valve, the cleaning mechanism comprises a cleaning shaft arranged in a cavity of the three-way valve, the cleaning shaft and the water testing nozzle are coaxially arranged, a plurality of connecting rods are hinged on the cleaning shaft and are uniformly distributed along the circumferential surface of the cleaning shaft, an elastic scraping rod for scraping and brushing the side wall of the water testing nozzle is arranged at the other end of each connecting rod, an elastic jacking component for jacking the connecting rods to move in the direction far away from the axis of the cleaning shaft is arranged at the contact position of the connecting rods and the elastic scraping rod, and a driving mechanism for driving the end of the cleaning shaft, which is far away from the water testing nozzle, to slide in a reciprocating manner in the length direction of the axis of the water testing nozzle is arranged at the end of the cleaning shaft. The invention has the advantages that: can need not to dismantle alright clean the water testing shower nozzle when the water testing shower nozzle does not use, ensure the detection precision of water testing shower nozzle.

Description

Multifunctional fire-fighting water testing device nozzle

Technical Field

The invention relates to the technical field of fire-fighting equipment, in particular to a multifunctional fire-fighting water testing device spray head.

Background

In the installation process of the fire-fighting water network, the fire-fighting pipeline contacted with the fire-fighting water network needs to be subjected to water pressure detection, so that the water pressure of fire-fighting equipment can play a role in fire extinguishing; the pressure testing of fire control pipeline need use the water test shower nozzle, has the water pressure gauge on the water test shower nozzle, detection water pressure that can understand.

The existing Chinese utility model with the authorized bulletin number of CN210409352U discloses a destruction-proof fire hydrant pressure measuring device, which comprises a fire hydrant pressure measuring joint, a pipe thread joint and a pressure relief hose; the end part of the water inlet end of the fire hydrant pressure measuring joint is in threaded connection with the pipe thread joint, the end part of the water outlet end of the fire hydrant pressure measuring joint is provided with a pressure relief interface, the water outlet end of the fire hydrant pressure measuring joint is provided with a first switch valve, and the first switch valve is positioned at the upstream of the pressure relief interface; a pressure gauge is arranged on the pressure measuring joint of the fire hydrant and is positioned between the first switch valve and the pipe thread joint; the water inlet end of the pressure relief hose is provided with a pressure relief connector, and the pressure relief connector of the pressure relief hose is movably connected to a pressure relief connector of the pressure measuring connector of the fire hydrant.

The above prior art solutions have the following drawbacks: because the water contains few impurities, the fire hydrant pressure measuring connector can store some scale on the inner side wall of the fire hydrant pressure measuring connector in the long-term use process, and when the scale is more, the detection precision of the fire hydrant detection pressure head can be influenced to a certain degree. However, when the scale is cleaned, the pressure measuring joint of the fire hydrant needs to be detached from the fire hydrant pipe network, the cleaning is complicated, and the problem needs to be solved urgently.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide a multifunctional fire-fighting water test device spray head, which has the advantages that: can need not to dismantle alright clean the water testing shower nozzle when the water testing shower nozzle does not use, ensure the detection precision of water testing shower nozzle.

The above object of the present invention is achieved by the following technical solutions:

a multifunctional fire-fighting water test device spray head, which comprises a water test spray head and a pressure gauge arranged on the water test spray head, the water inlet end of the water testing spray head is communicated with a three-way valve, a cleaning mechanism for cleaning the interior of the water testing spray head is arranged in the three-way valve, the cleaning mechanism comprises a cleaning shaft arranged in the cavity of the three-way valve, the cleaning shaft and the water test spray head are coaxially arranged, the cleaning shaft is hinged with a plurality of connecting rods which are evenly distributed along the circumferential surface of the cleaning shaft, the other end of the connecting rod is provided with an elastic scraping rod for scraping and brushing the side wall of the test water spray head, an elastic jacking component for jacking the connecting rod to move in the direction far away from the axis of the cleaning shaft is arranged at the contact part of the connecting rod and the elastic scraping rod, and the end part of the cleaning shaft, which is far away from the water testing spray head, is provided with a driving mechanism for driving the cleaning shaft to slide back and forth along the axial length direction of the water testing spray head.

By adopting the technical scheme, when a worker uses the water test spray head, the water test spray head can be arranged on a fire-fighting pipeline through the three-way valve; after the pressure measuring work of the water testing spray head is finished, when the inner side wall of the water testing spray head is cleaned, the cleaning shaft can be driven by the driving mechanism to slide back and forth towards the inside of the water testing spray head, at the moment, the elastic scraping rod on the connecting rod can be supported on the inner side wall of the water testing spray head, at the moment, due to the arrangement of the elastic supporting component, the elastic scraping rod can be suitable for inner walls with different diameters of the water testing spray head, and the elastic scraping rod can cover the long length of the water testing spray head; through setting up clean mechanism for the staff need not to dismantle alright clean the shower nozzle of trying water, thereby ensure the detection precision of trying water the shower nozzle next time.

The present invention in a preferred example may be further configured to: the subassembly is held in elasticity top including articulating the top on the connecting rod and holding the pole, the top is held the pole and is set up for the obtuse angle with the angle that the connecting rod initial formed, the other end that the top was held the pole articulates there is the ring that slides, the ring cup joints on clean epaxially, and the ring that slides can slide along the length direction of clean axle, the outside extension of tip of clean axle orientation water testing shower nozzle has the flange, be provided with the top between flange and the ring that slides and hold the spring, the top is held the spring housing and is established on clean epaxial global.

Through adopting above-mentioned technical scheme, scrape the pole towards the play water end of water test shower nozzle when removing at elasticity, the internal diameter of water test shower nozzle reduces gradually, elasticity is scraped the pole and can is driven the connecting rod together and remove towards the global of clean axle this moment, the holding rod can rotate through the pin joint at its both ends this moment, because the holding rod, connecting rod and clean axle form a triangular structure, the connecting rod moves down with holding rod pin joint, can make holding rod top hold the slip ring and slide towards the direction of flange, the elastic deformation that the spring can take place the shrink is held in the top this moment and is kept away from the effort of flange for slip ring all the time, thereby drive holding rod and keep away from the effort of clean axle for connecting rod all the time, then make elasticity scrape the pole paste and lean on the inside wall of water test shower nozzle all the time, make elasticity scrape the pole can strike off the incrustation scale on.

The present invention in a preferred example may be further configured to: the driving mechanism comprises a communicating pipe connected to the three-way valve, the communicating pipe can penetrate into the three-way valve, and the communicating pipe is connected with the three-way valve in a sealing manner through the connecting component; a screw rod penetrates through the communicating pipe, the screw rod and the cleaning shaft are coaxially arranged, the screw rod and the cleaning shaft are mutually connected through a rotating assembly for driving the cleaning shaft to rotate, and a power assembly for driving the screw rod to axially move along the communicating pipe is arranged at the end part of the communicating pipe, which is far away from the three-way valve; the power assembly comprises a bearing seat arranged at the end part of the communicating pipe, and the bearing seat can be sleeved on the peripheral surface of the communicating pipe and is fixed on the communicating pipe through a screw; a threaded sleeve is arranged in the bearing seat and is rotationally connected with the bearing seat through a thrust bearing; the outer peripheral surface of the threaded sleeve is of a stepped structure, the threaded sleeve is sleeved on the screw rod and is in threaded connection with the screw rod, a rotary hand wheel is fixed on the threaded sleeve through a fixing nut, and a limiting part for limiting the rotation of the screw rod is arranged on the communicating pipe.

By adopting the technical scheme, the communicating pipe is in sealing connection with the three-way valve, so that the possibility of water body leakage from the communicating pipe beside the three-way valve is reduced when the water testing spray head is in normal use; meanwhile, when the staff scrapes scales on the test water spray head, the hand wheel can be rotated to drive the threaded sleeve to rotate relative to the bearing seat, and at the moment, the screw rod cannot rotate under the limitation of the limiting part, so that the screw rod can be driven to reciprocate along the axis direction of the communicating pipe by the rotation of the threaded sleeve, the cleaning shaft at the end part of the screw rod is driven to slide back and forth along the axis of the test water spray head, and the elastic scraping rod is driven to scrape and brush the test water spray head; the setting of runner assembly simultaneously can drive elasticity and scrape the pole and rotate when clean axle reciprocates to slide in the test water shower nozzle, from making elasticity scrape the pole and can cover the inside bigger area of test water shower nozzle to scrape the incrustation scale in the test water shower nozzle and go on more thoroughly.

The present invention in a preferred example may be further configured to: the limiting piece is a guide nail, the guide nail is perpendicular to the axis of the communicating pipe, the guide nail penetrates through the side wall of the communicating pipe and is in threaded connection with the communicating pipe, a sliding groove for accommodating the guide nail to slide is formed in the side wall of the screw rod facing the guide nail, the sliding groove is arranged along the length direction of the screw rod, and the end portion of the guide nail can be inserted into the sliding groove.

Through adopting above-mentioned technical scheme, because the guide pin threaded connection is on the lateral wall of communicating pipe, so the guide pin with slide the mutually supporting in groove, can restrict the screw rod and carry out the rotation around its axial under the drive of thread bush to make thread bush can realize driving sliding about the screw rod.

The present invention in a preferred example may be further configured to: coupling assembling is used for restricting the fender ring that inserts the three-way valve degree of depth communicating pipe including setting up on communicating pipe global, and the cover is equipped with an union cap on communicating pipe, the cavity body of union cap for having the ladder inner wall, the opening of the great internal diameter of union cap sets up towards the three-way valve, and union cap and three-way valve threaded connection, and the less internal diameter of union cap is less than the diameter that keeps off the ring, the union cap will be fixed on the three-way valve communicating pipe.

Through adopting above-mentioned technical scheme, the staff can insert communicating pipe into the three-way valve earlier when installing communicating pipe to the fender ring that makes can hug closely on the lateral wall of three-way valve, will communicating union cap threaded connection on communicating pipe afterwards on the lateral wall of three-way valve, and through the inside less internal diameter of union cap and the lateral wall of great internal diameter junction close-fitting lean on the lateral wall of fender ring, install communicating pipe on the three-way valve through the extrusion force of union cap, and is simple and convenient.

The present invention in a preferred example may be further configured to: the runner assembly is including seting up the mounting groove at the clean tip of axle of screw rod orientation, the embedded driving motor that is equipped with of mounting groove, driving motor's output shaft and the coaxial rigid coupling of clean axle, the tip that clean axle inserted the mounting groove passes through the lateral wall rotation of footstep bearing and screw rod and is connected, the tip threaded connection of screw rod has the sealed lid that is used for sealed footstep bearing, the inside wall of sealed lid and the tip threaded connection of screw rod.

By adopting the technical scheme, when the rotating assembly works, a worker can start the driving motor, the driving motor can drive the cleaning shaft to rotate around the axis of the cleaning shaft by rotating, and the elastic scraping rod on the connecting rod can be driven to synchronously rotate by rotating the cleaning shaft, so that scale on the water testing spray head can be more thoroughly scraped; simultaneously, footstep bearing and sealed setting of covering can be so that clean axle and the connection of screw rod are more stable, also make the shower nozzle of trying water when using, and the water is difficult for entering into and damages driving motor in the screw rod, reinforcing overall stability.

The present invention in a preferred example may be further configured to: the supporting ring is arranged on the circumferential surface of the screw rod and used for supporting the screw rod, the supporting ring is far away from the rotating hand wheel and is matched with the inner diameter of the communicating pipe, and a plurality of sealing assemblies used for reducing water entering the communicating pipe are arranged on the circumferential surface of the supporting ring facing the communicating pipe.

By adopting the technical scheme, the suspension of the end part of the screw rod can be reduced due to the arrangement of the support ring, so that the sliding of the screw rod along the communicating pipe and the three-way valve is more stable, the pressure born by the threaded sleeve is reduced, the service life of the threaded sleeve is prolonged, and the integral operation stability of the cleaning mechanism is further improved; meanwhile, the sealing assembly can reduce the possibility that the water body enters the communicating pipe when the water testing spray head carries out pressure measurement, so that the detection precision of the water testing spray head is ensured.

The present invention in a preferred example may be further configured to: the sealing assembly comprises an annular groove formed in the circumferential surface of the support ring, a sealing ring arranged in an O-shaped mode is embedded in the annular groove, and the sealing ring is a rubber elastic body.

Through adopting above-mentioned technical scheme, the sealing washer that the O type set up does not have sealed breach, can make the cooperation between the lateral wall of support ring and three-way valve inseparable, forms a stable sealed.

In summary, the invention has the following beneficial technical effects:

1. by arranging the cleaning mechanism, a worker can clean the water testing spray head without disassembling the water testing spray head, so that the next detection precision of the water testing spray head is ensured;

2. the rotating assembly is arranged, so that the cleaning shaft can slide in the test water spray head in a reciprocating manner and simultaneously drive the elastic scraping rod to rotate, the elastic scraping rod can cover a larger area in the test water spray head, and scale in the test water spray head can be scraped more thoroughly;

3. the sealing assembly can reduce the possibility that the water body enters the communicating pipe when the water testing spray head carries out pressure measurement, so that the detection precision of the water testing spray head is ensured.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a sectional view showing the structure of the cleaning mechanism according to the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2, which is used to show the structure of the elastic supporting member and the rotating member.

In the figure, 1, a water test spray head; 11. a pressure gauge; 12. a closing valve; 13. a three-way valve; 2. a cleaning mechanism; 21. cleaning the shaft; 211. a flange; 212. the anti-drop ring; 22. a connecting rod; 23. an elastic scraping rod; 24. an elastic supporting component; 241. a holding rod; 242. a slip ring; 243. a jacking spring; 25. a drive mechanism; 251. a communicating pipe; 252. a connecting assembly; 2521. a baffle ring; 2522. a union cap; 253. a screw; 2531. a sliding groove; 254. a rotating assembly; 2541. mounting grooves; 2542. a drive motor; 2543. a thrust bearing; 2544. a sealing cover; 255. a power assembly; 2551. a bearing seat; 2552. a screw; 2553. a threaded sleeve; 2554. a thrust bearing; 2555. fixing a nut; 2556. rotating a hand wheel; 256. a limiting member; 257. a support ring; 258. a seal assembly; 2581. a ring groove; 2582. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the multifunctional fire-fighting water test device spray head disclosed by the invention comprises a water test spray head 1 and a pressure gauge 11 fixedly connected on the water test spray head 1, wherein the vertical section of the water test spray head 1 is generally in a conical shape, a water outlet end of the water test spray head 1 is provided with a sealing valve 12 for opening and closing the water outlet end of the water test spray head 1, a water inlet end with a larger inner diameter of the water test spray head 1 is communicated with a three-way valve 13, the inner diameter of the three-way valve 13 is the same as that of the larger end of the water test spray head 1, and the three-way valve 13 is in threaded connection with the water test spray head 1; the lower opening of the three-way valve 13 is installed on a fire-fighting pipeline (not shown in the figure), and a valve (not shown in the figure) for opening and closing the fire-fighting pipeline is arranged on the fire-fighting pipeline to control the water body to enter.

Referring to fig. 2 and 3, a cleaning mechanism 2 for cleaning the interior of the test water nozzle 1 is arranged in the three-way valve 13, the cleaning mechanism 2 comprises a cleaning shaft 21 arranged in a cavity of the three-way valve 13, the cleaning shaft 21 and the test water nozzle 1 are coaxially arranged, seven connecting rods 22 are hinged on the cleaning shaft 21, the seven connecting rods 22 are uniformly distributed along the circumferential surface of the cleaning shaft 21, the other end of each connecting rod 22 is fixedly connected with an elastic scraping rod 23 for scraping and brushing the side wall of the test water nozzle 1, and the elastic scraping rods 23 are attached to the inner wall of the three-way valve 13; the mutual contact position of the connecting rod 22 and the elastic scraping rod 23 is provided with an elastic jacking component 24 for jacking the connecting rod 22 to move in the direction away from the axis of the cleaning shaft 21, and the end part of the cleaning shaft 21 departing from the test water nozzle 1 is provided with a driving mechanism 25 for driving the cleaning shaft to slide in a reciprocating manner along the length direction of the axis of the test water nozzle 1.

Referring to fig. 2 and 3, the elastic force propping assembly 24 includes a propping rod 241 hinged on the connecting rod 22, an angle formed by the propping rod 241 and the connecting rod 22 is an obtuse angle, the other end of the propping rod 241 is hinged with a sliding ring 242, the sliding ring 242 is sleeved on the cleaning shaft 21, the sliding ring 242 can slide along the length direction of the cleaning shaft 21, the end of the cleaning shaft 21 facing the test water nozzle 1 extends outward to form a flange 211, a propping spring 243 is arranged between the flange 211 and the sliding ring 242, the propping spring 243 is sleeved on the circumferential surface of the cleaning shaft 21, the two ends of the propping spring 243 are respectively abutted against the sliding ring 242 and the flange 211, and the propping spring 243 is always in a compressed state, so that the propping spring 243 can give an elastic acting force to the sliding ring 242 away from the flange 211. When the elastic scraping rod 23 moves towards the water outlet end of the test water nozzle 1, the inner diameter of the test water nozzle 1 gradually decreases, at this time, the elastic scraping rod 23 drives the connecting rod 22 to move together towards the circumferential surface of the cleaning shaft 21, at this time, the supporting rod 241 rotates through the hinge points at the two ends, because the supporting rod 241, the connecting rod 22 and the cleaning shaft 21 form a triangular structure, the downward movement of the hinge point of the connecting rod 22 and the supporting rod 241 enables the supporting rod 241 to support the sliding ring 242 to slide towards the flange 211, at this time, the supporting spring 243 will generate a contracting elastic deformation and always give an acting force to the sliding ring 242 away from the flange 211, thereby drive and prop and hold pole 241 and give connecting rod 22 an effort of keeping away from clean axle 21 all the time, make elasticity scrape pole 23 paste all the time and lean on the inside wall of water test spray head 1 then for elasticity scrapes the incrustation scale that pole 23 can be with on the water test spray head 1 and scrapes.

Referring to fig. 2 and 3, the driving mechanism 25 includes a communication pipe 251 connected to the three-way valve 13, the communication pipe 251 is a hollow long pipe, one end of the communication pipe 251 can penetrate into the three-way valve 13, and the communication pipe 251 is connected to the three-way valve 13 through a connection assembly 252 in a sealing manner; the connection assembly 252 includes a stopper ring 2521 coaxially and fixedly coupled to a circumferential surface of the communication pipe 251 to limit a depth of the communication pipe 251 inserted into the three-way valve 13, the communication pipe 251 is sleeved with a union cap 2522, the union cap 2522 is a hollow pipe having a stepped inner wall, an opening of a larger inner diameter of the union cap 2522 is disposed toward the three-way valve 13, and the union cap 2522 is screw-coupled to the three-way valve 13, a smaller inner diameter of the union cap 2522 is smaller than a diameter of the stopper ring 2521, when the communication pipe 251 is installed, a worker may first insert the communication pipe 251 into the three-way valve 13 and enable the stopper ring 2521 to be closely attached to a sidewall of the three-way valve 13, then screw-couple the union cap 2522 on the communication pipe 251 to the sidewall of the three-way valve 13 and closely attach the communication pipe 251 to the sidewall of the stopper ring 2521 through a connection between the smaller inner diameter and the larger inner diameter of the union cap 2522 by pressing force of the three-way valve 13, it is simple and convenient, and at the same time, it is convenient for installation and replacement of the communication pipe 251.

Referring to fig. 2 and 3, a screw 253 penetrates through the communication pipe 251, the length of the screw 253 is greater than that of the communication pipe 251, the screw 253 and the cleaning shaft 21 are coaxially arranged, and the screw 253 and the cleaning shaft 21 are connected with each other through a rotating assembly 254 for driving the cleaning shaft 21 to rotate; the rotating assembly 254 includes an installation groove 2541 provided at an end portion of the screw 253 facing the cleaning shaft 21, a driving motor 2542 is embedded in the installation groove 2541, an output shaft of the driving motor 2542 is coaxially and fixedly connected with the cleaning shaft 21, an end portion of the cleaning shaft 21 inserted into the installation groove 2541 is rotatably connected with a side wall of the screw 253 through a thrust bearing 2543, an end portion of the screw 253 is in threaded connection with a sealing cover 2544 for sealing the thrust bearing 2543, an inner side wall of the sealing cover 2544 is in threaded connection with an end portion of the screw 253, the end portion of the cleaning shaft 21 extending into the screw 253 extends outward along an axis thereof towards a circumferential surface of the cleaning shaft 21 to form a slip-proof ring 212, the thrust bearing 2543 and the sealing cover 2544 are mutually matched, so that the cleaning shaft 21 rotates more stably in the screw 253. Rotating assembly 254 during operation, the staff accessible opens driving motor 2542, and driving motor 2542's rotation can drive clean axle 21 and rotate around its axis, and the rotation of clean axle 21 can drive the elasticity on the connecting rod 22 and scrape pole 23 and rotate in step to make the incrustation scale on the test water shower nozzle 1 strike off more thoroughly.

Referring to fig. 2 and 3, the end of communication pipe 251 away from three-way valve 13 is provided with a power assembly 255 for driving screw 253 to move axially along communication pipe 251; the power assembly 255 comprises a bearing seat 2551 arranged at the end of the communication pipe 251, and the bearing seat 2551 can be sleeved on the outer circumferential surface of the communication pipe 251 and is fixed on the communication pipe 251 through a screw 2552; a threaded sleeve 2553 is arranged in the bearing seat 2551, and the threaded sleeve 2553 is rotatably connected with the bearing seat 2551 through a thrust bearing 2554; the outer peripheral surface of the threaded sleeve 2553 is of a stepped structure, the threaded sleeve 2553 is sleeved on the screw 253, the threaded sleeve 2553 is in threaded connection with the screw 253, a rotary hand wheel 2556 is fixed on the threaded sleeve 2553 through a fixing nut 2555, the rotary hand wheel 2556 is sleeved on the threaded sleeve 2553 and is fixed on the side wall of the threaded sleeve 2553 with the smaller inner diameter through the fastening pressure of the fixing nut 2555; a limiting piece 256 for limiting the rotation of the screw 253 is arranged on the communicating pipe 251; the limiting member 256 is a guide pin, the guide pin is perpendicular to the axis of the communication pipe 251, the guide pin penetrates through the side wall of the communication pipe 251 and is in threaded connection with the communication pipe 251, a sliding groove 2531 for accommodating the guide pin to slide is formed in the side wall of the screw 253 facing the guide pin, the sliding groove 2531 is arranged along the length direction of the screw 253, and the end portion of the guide pin can be inserted into the sliding groove 2531. The peripheral surface of the screw 253 is fixedly connected with a support ring 257 for supporting the screw 253, the support ring 257 is far away from the rotating hand wheel 2556, the diameter of the support ring 257 is matched with the inner diameter of the communication pipe 251, the suspension of the end of the screw 253 can be reduced due to the arrangement of the support ring 257, so that the screw 253 slides more stably along the communication pipe 251 and the three-way valve 13, the pressure born by the threaded sleeve 2553 is reduced, the service life of the threaded sleeve 2553 is prolonged, two sealing assemblies 258 for reducing water entering the communication pipe 251 are arranged on the peripheral surface of the support ring 257 facing the communication pipe 251, and the two sealing assemblies 258 are uniformly distributed along the length direction of the support ring 257; the sealing assembly 258 comprises a ring groove 2581 formed in the circumferential surface of the support ring 257, a sealing ring 2582 arranged in an O-shaped manner is embedded in the ring groove 2581, and the sealing ring 2582 is made of a rubber elastic body.

When an operator scrapes scales on the test water nozzle 1, the hand wheel 2556 can be rotated to drive the threaded sleeve 2553 to rotate relative to the bearing seat 2551, and at the moment, the screw 253 cannot rotate under the limitation of the limiting part 256, so that the screw 253 is driven by the rotation of the threaded sleeve 2553 to reciprocate along the axis direction of the communicating pipe 251, and the cleaning shaft 21 at the end part of the screw 253 is driven to slide back and forth along the axis of the test water nozzle 1, and the elastic scraping rod 23 is driven to scrape the test water nozzle 1; due to the arrangement of the supporting ring 257 and the sealing assembly 258, when the screw 253 drives the supporting ring 257 to slide away from the test water nozzle 1, the pressure between the communicating pipe 251 and the supporting ring 257 is increased, and in order to reduce the pressure of screwing the threaded sleeve 2553, a worker can adjust the depth of the limiting part 256 penetrating into the sliding groove 2531, so that a gap for pressure relief is reserved between the end part of the limiting part 256 and the side wall of the sliding groove 2531, and the screw 253 can smoothly slide left and right.

The implementation principle of the embodiment is as follows: when the worker uses the water test spray head 1, the water test spray head 1 can be arranged on a fire-fighting pipeline through a three-way valve 13; after the pressure measurement work of the test water spray head 1 is finished, when the inner side wall of the test water spray head 1 is cleaned, the driving mechanism 25 can drive the cleaning shaft 21 to slide back and forth towards the interior of the test water spray head 1, at the moment, the elastic scraping rod 23 on the connecting rod 22 can be supported on the inner side wall of the test water spray head 1, at the moment, due to the arrangement of the elastic supporting component 24, the elastic scraping rod 23 can be suitable for the inner walls of the test water spray head 1 with different diameters, and the elastic scraping rod 23 can cover the long length of the test water spray head 1; meanwhile, the driving motor 2542 is started, the cleaning shaft 21 is driven to rotate around the axis by the rotation of the driving motor 2542, and the elastic scraping rod 23 on the connecting rod 22 is driven to synchronously rotate by the rotation of the cleaning shaft 21, so that the scale on the test water nozzle 1 is more thoroughly scraped; the water outlet end of the water test spray nozzle 1 is flushed with the scale through the water body by opening the fire fighting pipeline after the scale is scraped. Through setting up clean mechanism 2 for the staff need not to dismantle alright clean test water shower nozzle 1, thereby ensure the detection precision of test water shower nozzle 1 next time.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a multi-functional fire control water test device shower nozzle, includes water test shower nozzle (1) and manometer (11) of setting on water test shower nozzle (1), its characterized in that: the end intercommunication of intaking of examination water shower nozzle (1) has three-way valve (13), be provided with in three-way valve (13) and carry out clear clean mechanism (2) to examination water shower nozzle (1) inside, clean mechanism (2) are including setting up clean axle (21) in three-way valve (13) cavity, clean axle (21) and examination water shower nozzle (1) coaxial setting, it has a plurality of connecting rods (22) to articulate on clean axle (21), and a plurality of connecting rods (22) evenly arrange along the global of clean axle (21), the other end of connecting rod (22) is provided with scrapes pole (23) to the elasticity that the brush was scraped to examination water shower nozzle (1) lateral wall, connecting rod (22) scrape pole (23) with elasticity and contact each other the department be provided with and be used for propping up and hold connecting rod (22) to keeping away from elasticity top of clean axle (21) axis direction removal and hold subassembly (24), just the tip that clean axle (21) deviates from examination water shower nozzle (1) is provided with the drive it along water shower nozzle (1) axis A driving mechanism (25) which performs reciprocating sliding in the length direction; the driving mechanism (25) comprises a communication pipe (251) connected to the three-way valve (13), the communication pipe (251) can penetrate into the three-way valve (13), and the communication pipe (251) is in sealing connection with the three-way valve (13) through a connecting component (252); a screw rod (253) penetrates through the communicating pipe (251), the screw rod (253) and the cleaning shaft (21) are coaxially arranged, the screw rod (253) and the cleaning shaft (21) are mutually connected through a rotating assembly (254) for driving the cleaning shaft (21) to rotate, and a power assembly (255) for driving the screw rod (253) to axially move along the communicating pipe (251) is arranged at the end part of the communicating pipe (251) departing from the three-way valve (13); the power assembly (255) comprises a bearing seat (2551) arranged at the end part of the communication pipe (251), and the bearing seat (2551) can be sleeved on the outer peripheral surface of the communication pipe (251) and is fixed on the communication pipe (251) through a screw (2552); a threaded sleeve (2553) is arranged in the bearing seat (2551), and the threaded sleeve (2553) is rotatably connected with the bearing seat (2551) through a thrust bearing (2554); the outer peripheral surface of the threaded sleeve (2553) is of a stepped structure, the threaded sleeve (2553) is sleeved on the screw rod (253), the threaded sleeve (2553) is in threaded connection with the screw rod (253), a rotary hand wheel (2556) is fixed on the threaded sleeve (2553) through a fixing nut (2555), and a limiting piece (256) for limiting the rotation of the screw rod (253) is arranged on the communication pipe (251); the connecting assembly (252) comprises a stop ring (2521) which is arranged on the circumferential surface of the communication pipe (251) and used for limiting the depth of the communication pipe (251) inserted into the three-way valve (13), a union cap (2522) is sleeved on the communication pipe (251), the union cap (2522) is a hollow pipe body with a stepped inner wall, an opening with a larger inner diameter of the union cap (2522) is arranged towards the three-way valve (13), the union cap (2522) is in threaded connection with the three-way valve (13), the smaller inner diameter of the union cap (2522) is smaller than the diameter of the stop ring (2521), and the communication pipe (251) is fixed on the three-way valve (13) by the union cap (2522); a supporting ring (257) for supporting the screw (253) is arranged on the circumferential surface of the screw (253), the supporting ring (257) is arranged away from the rotating hand wheel (2556), the diameter of the supporting ring (257) is matched with the inner diameter of the communicating pipe (251), and a plurality of sealing assemblies (258) for reducing water entering the communicating pipe (251) are arranged on the circumferential surface of the supporting ring (257) facing the communicating pipe (251); seal assembly (258) is including offering annular (2581) on support ring (257) global, embedded sealing washer (2582) that are equipped with the setting of O type in annular (2581), sealing washer (2582) are rubber elastomer.

2. The multifunctional fire-fighting water test device spray head according to claim 1, characterized in that: elasticity top is held subassembly (24) and is including articulating top and holding pole (241) on connecting rod (22), the angle that top was held pole (241) and connecting rod (22) and was originally formed is the obtuse angle setting, the other end of top is held pole (241) articulates there is slip ring (242), slip ring (242) cup joint on clean axle (21), and slip ring (242) can follow the length direction of clean axle (21) and slide, the outside extension of tip of clean axle (21) orientation test water shower nozzle (1) has flange (211), be provided with between flange (211) and slip ring (242) and hold spring (243), top is held spring (243) cover and is established on the global of clean axle (21).

3. The multifunctional fire-fighting water test device spray head according to claim 1, characterized in that: the limiting piece (256) is a guide nail, the guide nail is perpendicular to the axis of the communication pipe (251), the guide nail penetrates through the side wall of the communication pipe (251) and is in threaded connection with the communication pipe (251), a sliding groove (2531) for accommodating sliding of the guide nail is formed in the side wall, facing the guide nail, of the screw rod (253), the sliding groove (2531) is arranged along the length direction of the screw rod (253), and the end portion of the guide nail can be inserted into the sliding groove (2531).

4. The multifunctional fire-fighting water test device spray head according to claim 1, characterized in that: rotating assembly (254) is including offering mounting groove (2541) at screw rod (253) orientation clean axle (21) tip, embedded driving motor (2542) that is equipped with in mounting groove (2541), the output shaft and the clean axle (21) coaxial rigid coupling of driving motor (2542), the tip that clean axle (21) inserted mounting groove (2541) is passed through thrust bearing (2543) and is connected with the lateral wall rotation of screw rod (253), the tip threaded connection of screw rod (253) has sealed lid (2544) that is used for sealed thrust bearing (2543), the inside wall of sealed lid (2544) and the tip threaded connection of screw rod (253).