Protection device for fire sprinkler

Abstract

A protection device for a fire sprinkler comprises an equipment base, a connecting pipe, a fire sprinkler body, a connecting frame, a hinge base, a first connecting shaft, a second connecting shaft, a first connecting plate, a second connecting plate, a first sealing component, a second sealing component, a limiting block, a hydraulic air cylinder and a controller. The first connecting plate is provided with a positioning block, the second connecting plate is provided with a positioning groove, the positioning block and the positioning groove are provided with a first limiting hole and a second limiting hole respectively, the first limiting hole and the second limiting hole are matched with the limiting block in shape and size respectively, and the limiting block is connected to the first limiting hole and the second limiting hole. The movement direction of the limiting block is parallel to the axial direction of the first connecting shaft, and the controller is electrically connected with the hydraulic air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a protection device for a fire fighting nozzle. Background Art

[0002] A fire sprinkler is a sprinkler installed in a building that can automatically spray water to extinguish a fire. A fire sprinkler is usually used in conjunction with a pack-level fire extinguishing system. It has the ability to quickly respond to a fire, cut off the fire source at the source, and reduce property losses. Existing fire sprinklers are usually electrically activated integrated sprinklers, and the problem with fire sprinklers is that the frequency of fires is actually very low, and there are no protective devices on the fire sprinklers, resulting in the fire sprinklers being exposed to the air for a long time. The water outlets on the fire sprinklers are prone to oxidation, rust, and blockage, which can cause the fire sprinklers to be unable to be used normally when a fire occurs. In addition, during use, since the protective device needs to cooperate with the fire sprinkler to have the function of automatic closing, when a fire occurs, there may be problems such as equipment failure caused by circuit breaking, the protective device cannot be opened, and the fire sprinkler cannot be used normally. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a protection device for a fire sprinkler which can be automatically turned on or off and can be used normally in the event of a power outage.

[0004] The technical solution of the utility model: a protection device for a fire sprinkler, comprising an equipment base, a connecting pipe connected to the equipment base, a fire sprinkler body connected to the connecting pipe, a connecting frame fixedly connected to the equipment base, a hinge base fixedly connected to the equipment base, a first connecting shaft movably connected to the hinge base, a second connecting shaft movably connected to the hinge base, a first connecting plate fixedly connected to the first connecting shaft, a second connecting plate fixedly connected to the second connecting shaft, a first sealing component fixedly connected to the first connecting plate, a second sealing component fixedly connected to the second connecting plate, a limit block movably connected to the connecting frame, a hydraulic cylinder and a controller for driving the limit block to move, the first connecting shaft and the second connecting shaft are both provided with spring springs, and the The first connecting plate is provided with a positioning block, and the second connecting plate is provided with a positioning groove. The positioning block and the positioning groove are respectively provided with a first limiting hole and a second limiting hole. The first limiting hole and the second limiting hole are respectively adapted to the shape and size of the limiting block. The internal space formed by the first sealing component and the second sealing component together is adapted to the shape and size of the fire sprinkler body. When the first connecting plate and the second connecting plate are in an initial state, the positions of the first sealing component and the second sealing component correspond, and the positions of the first limiting hole and the second limiting hole correspond. The limiting block is connected to the first limiting hole and the second limiting hole. The movement direction of the limiting block is parallel to the axial direction of the first connecting shaft. The controller is electrically connected to the hydraulic cylinder.

[0005] By adopting the above technical solution, when the fire sprinkler is in an unactivated state, the limit block is connected to the first limit hole and the second limit hole, and the positions of the first connecting plate and the second connecting plate are fixed. Therefore, the first sealing component and the second sealing component maintain a contact state, and the closed space enclosed by the first sealing component and the second sealing component wraps the fire sprinkler body, thereby preventing dust in the air from entering the fire sprinkler body, and at the same time preventing the fire sprinkler body from contacting with the air to cause oxidation and rust. When the fire sprinkler needs to be activated, an electrical signal is sent to the hydraulic cylinder through the controller, and the hydraulic cylinder drives the limit block to move away from the fire sprinkler body, so that the limit block is out of the range of the first limit hole and the second limit hole. After the limit function of the limit block is lost, the elastic force generated by the clockwork spring will respectively drive the first connecting plate and the second connecting plate to rotate a certain angle, so that the first sealing component and the second sealing component are not in a contact state, the fire sprinkler body is exposed, and the fire sprinkler body is in an operable state. This device can not only protect the fire sprinkler, but also automatically open when the fire sprinkler needs to work, ensuring that the equipment can be used in a timely and normal manner.

[0006] The utility model is further configured as follows: the contact ends of the first sealing component and the second sealing component are respectively provided with fluoropolymer coatings.

[0007] With the above technical solution, since fluoropolymer has good chemical resistance, barrier properties, high temperature resistance, does not absorb moisture, and has an extremely low friction coefficient, the contact ends of the first sealing component and the second sealing component are respectively provided with fluoropolymer coatings to avoid the first sealing component and the second sealing component from sticking together for a long time, resulting in the first sealing component and the second sealing component not being separated in time when the fire sprinkler is in use, affecting the fire extinguishing efficiency. Further configuration of the utility model: a backup power supply is provided on the base of the equipment, and the backup power supply is electrically connected to the controller and the hydraulic cylinder respectively.

[0008] With the above technical solution, since the backup power supply is electrically connected to the controller and the hydraulic cylinder respectively, when a fire causes a circuit break, the backup power supply starts, and the backup power supply provides electrical energy to the controller and the hydraulic cylinder respectively. The controller controls the hydraulic cylinder to drive the limit block to move away from the fire sprinkler body, so that the limit block is out of the range of the first limit hole and the second limit hole, and the fire sprinkler can be used normally. The protection device can be used normally in the case of a power outage. The utility model is further configured as follows: the diameter of the limit block close to the fire sprinkler body is smaller than the diameter of the limit block away from the fire sprinkler body, and the first limit hole and the second limit hole are respectively adapted to the diameter of the limit block away from the fire sprinkler body.

[0009] By adopting the above technical solution, since the diameter of the limit block close to the fire sprinkler body is smaller than the diameter of the limit block away from the fire sprinkler body, and the first limit hole and the second limit hole are respectively adapted to the diameter of the end of the limit block away from the fire sprinkler body, when the limit block is disengaged from the first limit hole and the second limit hole, the diameter of the contact end of the limit block with the first limit hole and the second limit hole is constantly decreasing, thereby avoiding the limit block from getting stuck or stuck in the process of disengaging from the first limit hole and the second limit hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 The present invention is a schematic structural diagram of a protection device for a fire sprinkler according to a specific embodiment of the present invention.

[0011] Attached Figure 2 The present invention is a schematic structural diagram of a fire sprinkler body in a fire sprinkler protection device according to a specific embodiment of the present invention.

[0012] Attached Figure 3 The present invention is a schematic structural diagram of a second connecting plate and a second sealing component in a protection device for a fire sprinkler according to a specific embodiment of the present invention.

[0013] Attached Figure 4 The present invention is a schematic structural diagram of a first connecting plate and a first sealing component in a protection device for a fire sprinkler according to a specific embodiment of the present invention.

[0014] 1-equipment base, 2-connecting pipe, 3-fire sprinkler body, 4-connecting frame, 5-hinge base, 6-first connecting shaft, 7-second connecting shaft, 8-first connecting plate, 9-second connecting plate, 10-first sealing component, 11-second sealing component, 12-limiting block, 13-hydraulic cylinder, 14-controller, 15-spring spring, 16-positioning block, 17-positioning groove, 18-first limiting hole, 19-second limiting hole, 20-fluoropolymer coating, 21-backup power supply. DETAILED DESCRIPTION

[0015] like Figure 1-4As shown, a protection device for a fire sprinkler head comprises an equipment base 1, a connecting pipe 2 connected to the equipment base 1, a fire sprinkler head body 3 connected to the connecting pipe 2, a connecting frame 4 fixedly connected to the equipment base 1, a hinge base 5 fixedly connected to the equipment base 1, a first connecting shaft 6 movably connected to the hinge base 5, a second connecting shaft 7 movably connected to the hinge base 5, a first connecting plate 8 fixedly connected to the first connecting shaft 6, a second connecting plate 9 fixedly connected to the second connecting shaft 7, a first sealing component 10 fixedly connected to the first connecting plate 8, a second sealing component 11 fixedly connected to the second connecting plate 9, a limit block 12 movably connected to the connecting frame 4, a hydraulic cylinder 13 and a controller 14 for driving the limit block 12 to move, the first connecting shaft 6 and the second connecting shaft 7 are both provided with a clockwork spring 15, the first connecting plate 8 is provided with a A positioning block 16 and a positioning groove 17 on the second connecting plate 9. The positioning block 16 and the positioning groove 17 are respectively provided with a first limiting hole 18 and a second limiting hole 19. The first limiting hole 18 and the second limiting hole 19 are respectively adapted to the shape and size of the limiting block 12. The internal space formed by the first sealing component 10 and the second sealing component 11 together is adapted to the shape and size of the fire sprinkler body 3. When the first connecting plate 8 and the second connecting plate 9 are in the initial state, the positions of the first sealing component 10 and the second sealing component 11 correspond, and the positions of the first limiting hole 18 and the second limiting hole 19 correspond. The limiting block 12 is connected to the first limiting hole 18 and the second limiting hole 19. The movement direction of the limiting block 12 is parallel to the axial direction of the first connecting shaft 6. The controller 14 is electrically connected to the hydraulic cylinder 13.

[0016] When the fire sprinkler is in an unactivated state, the limit block 12 is connected to the first limit hole 18 and the second limit hole 19, and the positions of the first connecting plate 8 and the second connecting plate 9 are fixed. Therefore, the first sealing component 10 and the second sealing component 11 maintain a contact state, and the closed space enclosed by the first sealing component 10 and the second sealing component 11 wraps the fire sprinkler body 3 inside, preventing dust in the air from entering the fire sprinkler body 3, and preventing the fire sprinkler body 3 from contacting the air to cause oxidation and rust. When the fire sprinkler needs to be activated, an electrical signal is sent to the hydraulic cylinder 13 through the controller 14, and the hydraulic cylinder 13 The limit block 12 is driven to move away from the fire sprinkler body 3, so that the limit block 12 is out of the range of the first limit hole 18 and the second limit hole 19. After the limit function of the limit block 12 is lost, the elastic force generated by the clockwork spring 15 will respectively drive the first connecting plate 8 and the second connecting plate 9 to rotate a certain angle, so that the first sealing component 10 and the second sealing component 11 are not in a contact state, the fire sprinkler body 3 is exposed, and the fire sprinkler body 3 is in an operable state. This device can not only protect the fire sprinkler, but also can automatically open when the fire sprinkler needs to work, to ensure that the equipment can be used in time and normally.

[0017] The contact ends of the first sealing component 10 and the second sealing component 11 are respectively provided with a fluoropolymer coating 20 .

[0018] Since fluoropolymer has good chemical resistance, barrier properties, high temperature resistance, does not absorb moisture, and has an extremely low friction coefficient, the contact ends of the first sealing component 10 and the second sealing component 11 are respectively provided with a fluoropolymer coating 20 to prevent the ends of the first sealing component 10 and the second sealing component 11 from sticking together for a long time, resulting in the first sealing component 10 and the second sealing component 11 not being separated in time when the fire sprinkler is in use, affecting the fire extinguishing efficiency. The equipment base 1 is provided with a backup power supply 21, which is electrically connected to the controller 14 and the hydraulic cylinder 13 respectively.

[0019] Since the backup power supply 21 is electrically connected to the controller 14 and the hydraulic cylinder 13 respectively, when a fire causes a circuit break, the backup power supply 21 starts, and the backup power supply 21 provides electrical energy to the controller 14 and the hydraulic cylinder 13 respectively. The controller 14 controls the hydraulic cylinder 13 to drive the limit block 12 to move away from the fire sprinkler body 3, so that the limit block 12 is out of the range of the first limit hole 18 and the second limit hole 19, and the fire sprinkler can be used normally. The protection device can be used normally in the event of a power outage.

[0020] The diameter of the end of the limit block 12 close to the fire sprinkler body 3 is smaller than the diameter of the end of the limit block 12 away from the fire sprinkler body 3, and the first limit hole 18 and the second limit hole 19 are respectively adapted to the diameter of the end of the limit block 12 away from the fire sprinkler body 3.

[0021] Since the diameter of the end of the limit block 12 close to the fire sprinkler body 3 is smaller than the diameter of the end of the limit block 12 away from the fire sprinkler body 3, and the first limit hole 18 and the second limit hole 19 are respectively adapted to the diameter of the end of the limit block 12 away from the fire sprinkler body 3, when the limit block 12 is disengaged from the first limit hole 18 and the second limit hole 19, the diameter of the contact end of the limit block 12 with the first limit hole 18 and the second limit hole 19 is constantly decreasing, so it can be avoided that the limit block 12 is stuck or stuck in the process of disengaging from the first limit hole 18 and the second limit hole 19.

Claims

1. A fire sprinkler protection device, characterized in that: The fire sprinkler comprises an equipment base, a connecting pipe connected to the equipment base, a fire sprinkler body connected to the connecting pipe, a connecting frame fixedly connected to the equipment base, a hinge base fixedly connected to the equipment base, a first connecting shaft movably connected to the hinge base, a second connecting shaft movably connected to the hinge base, a first connecting plate fixedly connected to the first connecting shaft, a second connecting plate fixedly connected to the second connecting shaft, a first sealing component fixedly connected to the first connecting plate, a second sealing component fixedly connected to the second connecting plate, a limit block movably connected to the connecting frame, a hydraulic cylinder and a controller for driving the limit block to move, the first connecting shaft and the second connecting shaft are both provided with a clockwork spring, and the first connecting plate is provided with a positioning block , a positioning groove on the second connecting plate, a first limiting hole and a second limiting hole are respectively provided on the positioning block and the positioning groove, the first limiting hole and the second limiting hole are respectively adapted to the shape and size of the limiting block, the internal space formed by the first sealing component and the second sealing component together is adapted to the shape and size of the fire sprinkler body, when the first connecting plate and the second connecting plate are in the initial state, the positions of the first sealing component and the second sealing component correspond, the positions of the first limiting hole and the second limiting hole correspond, the limiting block is connected to the first limiting hole and the second limiting hole, the movement direction of the limiting block is parallel to the axial direction of the first connecting shaft, and the controller is electrically connected to the hydraulic cylinder.

2. A fire sprinkler protection device according to claim 1, characterized in that: The contact ends of the first sealing component and the second sealing component are respectively provided with fluoropolymer coatings.

3. A fire sprinkler protection device according to claim 1, characterized in that: A backup power supply is arranged on the equipment base, and the backup power supply is electrically connected to the controller and the hydraulic cylinder respectively.

4. A fire sprinkler protection device according to claim 1, characterized in that: The diameter of the end of the limit block close to the fire sprinkler body is smaller than the diameter of the end of the limit block away from the fire sprinkler body, and the first limit hole and the second limit hole are respectively adapted to the diameter of the end of the limit block away from the fire sprinkler body.

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