Dismounting and cleaning tool for fire-fighting spray header of cable tunnel

Abstract

The invention belongs to the technical field of fire-fighting equipment maintenance tools, and particularly relates to a dismounting and cleaning tool for a fire-fighting spray head of a cable tunnel. Comprising a cart and a telescopic rod, a water tank, a distribution box and a water pump communicated with a water tank pipeline are fixed to the cart, a pulse valve is connected to an output end pipeline of the water pump, a hollow rotating platform and an electric cylinder are hinged to the telescopic rod, a clamping sleeve with a clamping sleeve is fixed to the rotating end of the hollow rotating platform, and a plurality of water spraying heads communicated with the clamping sleeve are arranged in the clamping sleeve; the bottom of the jacket communicates with the rotating end of a rotating connector, the fixed end of the rotating connector communicates with a hose, the hose is connected with a pulse valve, and a pressing rod is fixed to the output end of the electric cylinder. According to the invention, the whole-process integrated operation of on-site clamping, dismounting, high-pressure pulse back-flushing dredging cleaning and reassembling of the spray head is realized, the tedious step of carrying the spray head back and forth in a traditional mode is avoided, and the shutdown time of a fire-fighting pipeline is greatly shortened.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fire-fighting equipment maintenance tools, and particularly relates to a dismounting and cleaning tool for a cable tunnel fire-fighting spray head. BACKGROUND

[0002] The internal space of a cable tunnel is narrow and the environment is humid. A fire-fighting spray head is exposed to such a harsh environment for a long time. Dust is easily accumulated in the spray holes and internal passages of the spray head, or rusting occurs, which causes poor water spraying and seriously affects the emergency effect of the fire-fighting system. At present, maintenance personnel usually need to use a ladder or other climbing tools to perform high-altitude manual work. The spray head is first dismounted one by one, which has high operation risk and high labor intensity. A more prominent problem is that the dismounted spray head must be taken back to a ground maintenance room for cleaning and inspection. After confirming that the spray head is properly dredged, the spray head is returned to the tunnel for installation. Such an operation mode of 'dismounting-returning-cleaning-reinstalling' results in extremely long time consumption for single maintenance, so that the fire-fighting pipeline system is in a stopped running state for a long time, which brings additional safety risks. In addition, the spray head itself has a special structure (hexagonal table type), and seven small nozzles are distributed on the spray head. A long cable tunnel fire-fighting pipeline may have several thousand spray heads densely installed. Using the traditional method to manually inspect and dredge each nozzle of each spray head is time-consuming and labor-intensive. The cleaning effect is difficult to guarantee. The overall maintenance work efficiency is low, and the modern tunnel fire-fighting safety efficient operation and maintenance requirements cannot be met. SUMMARY

[0003] The present application aims to provide a dismounting and cleaning tool for a cable tunnel fire-fighting spray head to solve the problems in the prior art.

[0004] The technical solution adopted by the present application to solve the technical problems is as follows:

[0005] A dismounting and cleaning tool for a cable tunnel fire-fighting spray head, comprising a trolley, a telescopic rod, a water tank, a power distribution box and a water pump connected with the water tank pipeline fixed on the trolley, a pulse valve connected with the output end pipeline of the water pump, a hollow rotating platform and an electric cylinder hinged on the telescopic rod, a clamping sleeve with a jacket fixed on the rotating end of the hollow rotating platform, a plurality of water spray heads in the clamping sleeve in communication with the jacket, a rotating end of a rotary joint communicated with the bottom of the jacket, a fixed end of the rotary joint communicated with a hose, the hose connected with the pulse valve, and a pressure rod fixed on the output end of the electric cylinder.

[0006] Further, a hinged assembly is fixed on the top end of the telescopic rod. The hinged assembly comprises a connecting piece, a rotary piece in the shape of π and a bolt pair penetrating through the connecting piece and the rotary piece. The connecting piece is located inside the bottom end of the rotary piece in the shape of π. The contact surfaces of the rotary piece and the connecting piece are both provided with teeth that match each other.

[0007] Further, the outer wall of the fixed end of the rotary joint is fixed with a lower flange, and the outer wall of the rotating end of the rotary joint is fixed with a plurality of insertion rods, and the lower flange is fixed with the fixed end of the hollow rotating platform.

[0008] Further, the bottom end of the sleeve is fixed with a single flange pipe, the single flange pipe is flange-connected to the rotating end of the hollow rotating platform, a plurality of insertion grooves matched with the insertion rods are formed in the inner wall of the single flange pipe, and the rotating end of the rotary joint is inserted into the single flange pipe from the bottom of the hollow rotating platform and then the insertion rods are clamped in the insertion grooves.

[0009] Further, the bottom end of the sleeve is connected with a water inlet pipe communicated with the clamp sleeve, and the water inlet pipe is communicated with the rotating end of the rotary joint through a quick connector.

[0010] Further, a plurality of hollows for installing the quick connectors are formed in the side wall of the single flange pipe.

[0011] Further, a clamping groove matched with the outer contour of the fire sprinkler head is arranged in the sleeve, a plurality of avoiding grooves are formed in the clamping groove, one end of the avoiding groove is in an expanded shape, the water spraying heads are distributed in the avoiding grooves and the central position of the bottom of the clamping groove, a sealing groove is formed in the water spraying head, and a sealing ring is in interference fit in the sealing groove.

[0012] Further, the hose extends to the inside of the telescopic rod after penetrating the rotating member and the telescopic rod, and penetrates out from the bottom of the telescopic rod.

[0013] Further, the electric cylinder is fixed on the rotating member, and the pressing rod is in a U shape.

[0014] The present application has the following beneficial effects:

[0015] 1. Through the movable cart and the liftable telescopic rod, all high-altitude operations can be completed on the ground without climbing by the operator, the safety risk is greatly reduced, and the operation efficiency is improved.

[0016] 2. The full-process integrated operation of on-site clamping, dismounting, high-pressure pulse backflushing, cleaning and re-mounting of the sprinkler head is realized, the cumbersome steps of back-and-forth carrying of the sprinkler head in the traditional mode are avoided, and the downtime of the fire pipeline is greatly shortened.

[0017] 3. The high-pressure pulse water flow generated by the pulse valve is used for directional backflushing of the water spraying heads of each nozzle of the sprinkler head in the sleeve, which can effectively remove the blockages and scale, and the cleaning and dredging effect is significantly better than that of the manual mode.

[0018] 4. The height of the telescopic rod is adjustable, and the angle of the hinged component is adjustable, so that the tool can be flexibly adapted to the sprinkler heads with different installation heights and different inclination angles in the tunnel.

[0019] 5. The profile design of the sleeve facilitates quick alignment and clamping of the spray head, the U-shaped pressure rod driven by the electric cylinder can reliably press the spray head during cleaning to prevent it from falling out, and the overall operation is centrally controlled by the electric control system, which is simple and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present application.

[0021] Figure 2 is a structural schematic diagram of the execution part of the present application.

[0022] Figure 3 is a structural schematic diagram of the sleeve clamping the spray head of the present application.

[0023] Figure 4 is a structural schematic diagram of the present application Figure 2 is a sectional view structural schematic diagram.

[0024] Figure 5 is a sectional view structural schematic diagram of the sleeve of the present application.

[0025] Figure 6 is a structural schematic diagram of the hinge assembly of the present application.

[0026] Figure 7 is a structural schematic diagram of the rotary joint of the present application.

[0027] Figure 8 is a structural schematic diagram of the spray head in the prior art.

[0028] Wherein: 1. Trolley; 2. Telescopic rod; 3. Water tank; 4. Distribution box; 5. Water pump; 6. Pulse valve; 7. Hollow rotating platform; 8. Sleeve; 9. Electric cylinder; 10. Pressure rod; 11. Hinge assembly; 111. Connecting piece; 112. Rotating piece; 113. Bolt pair; 12. Rotary joint; 121. Lower flange; 122. Plug-in rod; 13. Hose; 14. Single-flange pipe; 141. Insert slot; 142. Hollow; 15. Water inlet pipe; 16. Quick connector; 17. Jacket; 18. Water spray head; 181. Sealing ring; 182. Sealing groove; 19. Clamping groove; 20. Avoidance groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below in combination with specific embodiments and drawings. It should be understood that the specific embodiments described here are only used to explain the present application and do not limit the present application.

[0030] As Figures 1-8As shown, the application provides a kind of cable tunnel fire-fighting spray head dismounting and cleaning tool, mainly by mobile part, water supply part and execution part constitute.Mobile part is a trolley 1 with wheel.Water supply part includes water tank 3, distribution box 4 and water pump 5 which are fixed on trolley 1, water pump 5 output pipeline is connected with pulse valve 6, water pump 5 extracts water in water tank 3, and pulse high pressure water is generated through pulse valve 6.Distribution box 4 is used to place battery and electrical components for power supply.Water tank 3 can be opened according to the need water inlet, cleaning agent hole and other structures.

[0031] Execution part includes telescopic rod 2 and its top end operating mechanism.Telescopic rod 2 can adjust length according to operating height, so as to adapt to different height operating requirements.Spray head on the same fire-fighting pipeline has different inclination angle, so as to maximize the increase of spray coverage area, hinged assembly 11 at the top end of telescopic rod 2 can adjust operating angle, so as to adapt to the inclination angle of spray head.The structure of hinged assembly 11 is specifically, including connecting piece 111, π type rotating piece 112 and bolt pair 113 which passes through connecting connecting piece 111 and rotating piece 112, connecting piece 111 is located in the inside of π type structure bottom end of rotating piece 112, rotating piece 112 and connecting piece 111 contact surface are all equipped with mutually matched gear teeth.After loosening bolt pair 113, rotating piece 112 can rotate with bolt pair 113 as axis, and after tightening, angle can be fixed through the meshing of gear teeth.

[0032] The working mechanism mainly comprises a hollow rotating platform 7 fixed on the rotating part 112, a rotating joint 12, a sleeve 8, and an electric cylinder 9. The outer wall of the fixed end of the rotating joint 12 is fixed with a lower flange 121, and the outer wall of the rotating end of the rotating joint 12 is fixed with a plurality of insertion rods 122. The lower flange 121 and the fixed end of the hollow rotating platform 7 are fixed on the top end of the rotating part 112, so that the rotating joint 12 and the hollow rotating platform 7 can move with the rotating part 112. The bottom end of the sleeve 8 is fixed with a single-flange pipe 14 which is flange-connected to the rotating end of the hollow rotating platform 7, so that the sleeve 8 can be rotated by the driving of the hollow rotating platform 7 to disassemble and assemble the spray head. A plurality of insertion grooves 141 matched with the insertion rods 122 are formed in the inner wall of the single-flange pipe 14. The rotating end of the rotating joint 12 is inserted into the single-flange pipe 14 from the bottom of the hollow rotating platform, and the insertion rods 122 are clamped in the insertion grooves 141. When the single-flange pipe 14 rotates, the rotating end of the rotating joint 12 can be rotated. A plurality of hollows 142 for installing quick connectors 16 are formed in the side wall of the single-flange pipe 14. The workers can connect the quick connectors 16 from the hollows 142. The fixed end (water inlet end) of the rotating joint 12 is communicated with a hose 13 which penetrates through the rotating part 112 and the telescopic rod 2, extends into the telescopic rod 2, and penetrates out of the bottom of the telescopic rod 2. The hose 13 is connected with the pulse valve 6, so that the water pump 5 can deliver the water to the rotating joint 12 in the form of high-pressure pulse water through the pulse valve 6.

[0033] The sleeve 8 has a jacket 17, and the bottom end of the sleeve 8 is connected with a water inlet pipe 15 communicated with the jacket 17. The water inlet pipe 15 is communicated with the rotating end of the rotating joint 12 through the quick connector 16, and the water delivered by the rotating joint 12 enters the jacket 17 of the sleeve 8 from the water inlet pipe 15. A plurality of water spraying heads 18 communicated with the jacket 17 are arranged in the sleeve 8, and the water in the jacket 17 is sprayed out from the water spraying heads 18 in the sleeve 8. The sleeve 8 is provided with a clamping groove 19 matched with the outer contour of the fire-fighting spray head, so that the spray head can be clamped. A plurality of avoiding grooves 20 are formed in the clamping groove 19, one end of the avoiding groove 20 is expanded, and the avoiding groove 20 can avoid the nozzles of the spray head, so as to ensure that the clamping groove 19 clamps the spray head. The water spraying heads 18 are distributed in the avoiding grooves 20 and the central position of the bottom of the clamping groove 19, and the water spraying heads 18 are provided with sealing grooves 182 in which sealing rings 181 are tightly fitted. The distribution position and angle of the water spraying heads 18 correspond to the distribution position of the nozzles of the spray head. After the sleeve 8 clamps the spray head, the water spraying heads 18 face the nozzles of the spray head, and the sealing rings 181 play a sealing role, so as to form a flow channel, and the water sprayed by the water spraying heads 18 can pulse the nozzles in the form of high pressure.

[0034] The electric cylinder 9 is fixed on the rotating part 112, and a U-shaped pressing plate 10 is fixed on the output end of the electric cylinder 9 and located above the sleeve 8. After the spray head is clamped and disassembled through the sleeve 8, the electric cylinder 9 acts to press the spray head in the sleeve 8 through the pressing plate 10, at this time, the spray head is pulsed to be dredged, and the spray head can be prevented from being taken out of the sleeve 8.

[0035] The working principle of the present application is as follows:

[0036] In use, the water tank 3 is filled with dilute acid descaling agent or special cleaning liquid for dissolving scale and internal impurities. The battery and electrical components are placed in the distribution box 4, and the control buttons can be controlled by buttons, such as the buttons for setting the hollow rotating platform 7 to forward and reverse rotation, controlling the electric cylinder 9 to extend and retract, controlling the water pump 5 to start and stop, and controlling the pulse valve 6 to start and stop. The control buttons can be arranged at the lower part of the telescopic rod 2 for the convenience of the workers to control. The length of the hose 13 can be appropriately set to increase the working range.

[0037] In work, the trolley 1 is moved to the working area, the working angle is adjusted through the hinged assembly 11, the sleeve 8 is clamped on the spray head by holding the telescopic rod 2, and the threaded pipe section of the spray head is located in the U-shaped opening of the pressing plate 10. The spray head is disassembled by controlling the hollow rotating platform 7 to reverse, the electric cylinder 9 is retracted to press the spray head by the pressing plate 10, and each water jet head 18 is positively jetted to the nozzle of the spray head. The sealing ring 181 plays a sealing role under pressure. The water pump 5 and the pulse valve 6 are turned on to form high-pressure pulse water, which enters the jacket 17 of the sleeve 8 through the hose 13, the rotating joint 12, the quick connector 16 and the water inlet pipe 15. Then the pulse water is jetted into the nozzle through the water jet head 18 to dredge and clean the nozzle and the filter screen in the nozzle. Then the water pump 5 and the pulse valve 6 are turned off, and the electric cylinder 9 is reset to align the threaded pipe section of the spray head with the interface of the fire pipe, and the spray pipe is screwed into the interface of the fire pipe by controlling the hollow rotating platform 7 to forward rotation.

[0038] The above embodiments are only preferred embodiments of the present application, and do not limit the concept and scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design concept of the present application shall fall within the protection scope of the present application.

[0039] The technical, shape and structure parts not described in detail in the present application are well-known technologies.

Claims

1. A tool for dismounting and cleaning a fire protection sprinkler head of a cable tunnel, characterized in that The utility model provides a kind of water spraying device, including trolley, telescopic rod, water tank, distribution box and water pump are fixed with water tank on trolley, water pump output pipeline is connected with pulse valve, hollow rotating platform and electric cylinder are hinged on telescopic rod, hollow rotating platform's rotating end is fixed with the sleeve with jacket, sleeve inside is equipped with several water spray head with jacket intercommunication, the rotating end of swivel joint is communicated with the bottom of jacket, the fixed end of swivel joint is communicated with hose, hose is connected with pulse valve, the output end of electric cylinder is fixed with pressure rod.

2. The tool for dismounting and cleaning the fire sprinkler head of a cable tunnel according to claim 1, characterized in that, The top of telescopic rod is fixed with hinged assembly, hinged assembly includes connecting piece, π-shaped rotating piece and bolt pair penetrating connecting connecting piece and rotating piece, connecting piece is located inside the bottom of π-shaped structure of rotating piece, rotating piece and connecting piece contact surface are equipped with mutually matched gear teeth.

3. The tool for dismounting and cleaning the fire sprinkler head of a cable tunnel according to claim 2, characterized in that, The fixed end of swivel joint is fixed with lower flange on outer wall, the rotating end of swivel joint is fixed with several insertion rods on outer wall, lower flange and hollow rotating platform's fixed end are fixed in rotating piece top together.

4. The tool of claim 3, wherein, The bottom of sleeve is fixed with single flange pipe, single flange pipe flange is connected in the rotating end of hollow rotating platform, single flange pipe inner wall is equipped with several insertion slots matched with insertion rod, the rotating end of swivel joint is inserted into single flange pipe inside from the bottom of hollow rotating platform and insertion rod is clamped in insertion slot.

5. The tool for dismounting and cleaning the fire sprinkler head of a cable tunnel according to claim 4, characterized in that, The bottom of sleeve is connected with water inlet pipe communicated with jacket, water inlet pipe is communicated with the rotating end of swivel joint by quick connector.

6. The tool of claim 5, wherein, Single flange pipe side wall is equipped with several hollows for installing quick connector.

7. The tool of claim 1, wherein, Sleeve is equipped with clamping groove matched with the external contour of fire-fighting spray head, clamping groove is equipped with several avoidance grooves, avoidance groove one end is flared, water spray head is distributed in avoidance groove and the central position of clamping groove bottom, sealing groove is opened on water spray head, sealing ring is interference fitted in sealing groove.

8. The tool of claim 1, wherein, The hose extends to telescopic rod inside after penetrating rotating piece and telescopic rod, and from telescopic rod bottom.

9. The tool of claim 2, wherein, Electric cylinder is fixed on rotating piece, and pressure rod is U-shaped.

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