A device to prevent accidental spraying of a sprinkler pipe

Abstract

This invention discloses an anti-mis-spraying device for a sprinkler pipe, comprising a sealing unit and a constant pressure unit. The sealing unit includes a water passage chamber, a locking component, and a back pressure chamber. The locking components are symmetrically arranged on both sides of the water passage chamber, and the back pressure chamber is located on the upper side of the water passage chamber. The constant pressure unit includes a constant pressure chamber, a constant pressure block, and a base plate. The constant pressure chamber and the constant pressure block are coaxially fitted, and the constant pressure block and the base plate are fixedly connected. The other end of the base plate is located at the bottom of the constant pressure chamber. The cooperation between the constant pressure unit and the sealing unit can reduce the impact of water pressure fluctuations in the sprinkler system pipeline on the valves, thereby reducing the risk of mis-spraying.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and in particular to a device for preventing accidental spraying of sprinkler pipes. Background Technology

[0002] Fire sprinkler valve assemblies are high-efficiency control valve assemblies and key equipment in automatic sprinkler and water mist fire extinguishing systems. The diaphragm-type sprinkler alarm valve's main valve uses a diaphragm to divide the main valve into upper and lower chambers. The upper chamber is the control chamber, and the water pressure generated by the area difference between the upper and lower chambers achieves the main valve's seal. The diaphragm sprinkler valve consists of a main valve, hydraulic alarm bell, pressure switch, manual ball valve, solenoid valve, three-way ball valve, needle valve, and control piping. When equipped with open sprinkler heads, water curtain sprinkler heads, closed sprinkler heads, and a fire alarm control system, it can form a corresponding water spray fire extinguishing system. It features simple structure, easy operation, safety and reliability, and convenient installation and maintenance. In case of fire, the sprinkler valve opens, and all open sprinkler heads in the system automatically spray water to extinguish the fire source. Simultaneously, it can automatically spray water onto the entire protected area, thereby preventing the spread and expansion of the fire.

[0003] Fluctuations in the pressure of the fire protection system pipeline network can easily cause malfunctions of the deluge valve assembly. The purpose of the anti-maloperation device proposed in this invention is to prevent the automatic sprinkler system from maloperating due to fluctuations in the pressure of the fire protection system pipeline network or failures of the deluge valve assembly, which could affect the equipment in the protected area. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems of easy leakage and accidental spraying in the above and / or existing anti-mis-spraying devices for sprinkler pipes, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to provide a device to prevent accidental spraying of a sprinkler pipe.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a spray pipe anti-mis-spraying device, comprising: a sealing unit, the sealing unit including a water passage chamber, a locking component and a back pressure chamber, the locking component being symmetrically arranged on both sides of the water passage chamber, and the back pressure chamber being disposed on the upper side of the water passage chamber; and a constant pressure unit, the constant pressure unit including a constant pressure chamber, a constant pressure block and a base plate, the constant pressure chamber and the constant pressure block being coaxially fitted, the constant pressure block and the base plate being fixedly connected, and the other end of the base plate being disposed at the bottom of the constant pressure chamber.

[0008] As a preferred embodiment of the anti-mis-spraying device for the sprinkler pipe of the present invention, the water passage cavity includes an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe are respectively disposed on both sides of the water passage cavity, and the inlet pipe and the outlet pipe are connected to the interior of the water passage cavity.

[0009] As a preferred embodiment of the anti-mis-spraying device for the spray pipe of the present invention, the water passage cavity further includes a floating block, a mating groove and a sealing rod, wherein the floating block is slidably engaged with the water passage cavity, and the mating groove and the locking component are engaged.

[0010] As a preferred embodiment of the anti-mis-spraying device for the sprinkler pipe of the present invention, the floating block includes a limiting groove, an arc groove and a sealing ring, the limiting groove is symmetrically arranged on both sides of the floating block, the arc groove is symmetrically arranged on both sides of the floating block, and the sealing ring is arranged on the side of the floating block.

[0011] As a preferred embodiment of the anti-mis-spraying device for the spray pipe of the present invention, the sealing rod includes a conical surface and an annular surface, the conical surface is disposed on the upper part of the sealing rod, and the annular surface is disposed on the side of the conical surface.

[0012] As a preferred embodiment of the anti-mis-spraying device for the spray pipe of the present invention, the water passage cavity further includes a guide ball, which slides in conjunction with the arc-shaped groove.

[0013] As a preferred embodiment of the anti-mis-spraying device for the sprinkler pipe of the present invention, the locking assembly includes a locking head, a T-shaped frame, and a reset component. The locking head engages with a limiting groove, and the reset component is disposed inside the T-shaped frame. The locking head includes a tapered rod, a pull rod, and a tension spring. The tapered rod is disposed inside the T-shaped frame, the pull rod is disposed on one side of the tapered surface of the tapered rod, and the tension spring is fixedly connected to the pull rod.

[0014] As a preferred embodiment of the anti-mis-spraying device for the spray pipe of the present invention, the T-shaped frame includes a contact pad, an electromagnetic coil is disposed inside the contact pad, the reset member includes a pressing head, the pressing head is symmetrically disposed on both sides of the T-shaped frame, and a magnetic block is disposed at the end of the pressing head.

[0015] As a preferred embodiment of the anti-mis-spraying device for the spray pipe of the present invention, the back pressure chamber includes a sealing cover and a back pressure water passage, the sealing cover is disposed at the top of the back pressure chamber, and the back pressure water passage is disposed in the middle of the sealing cover.

[0016] As a preferred embodiment of the anti-mis-spraying device for the spray pipe of the present invention, the constant pressure block includes a pressure-diffusing ring and a second sealing ring. The pressure-diffusing ring is disposed on the inner side of the constant pressure block, the second sealing ring is disposed on the outer ring of the constant pressure block, and the base plate includes a constant pressure spring disposed in the middle of the base plate.

[0017] The beneficial effects of this invention are as follows: When there is no fire alarm, the locking component locks the floating block inside the water passage chamber, preventing it from floating during water flow. The constant pressure unit located below is affected by water pressure fluctuations, causing the constant pressure block inside it to press the constant pressure spring, changing the internal volume of the constant pressure unit and affecting the water pressure inside the pipeline, which in turn affects the local water pressure on the valve. The sealing rod is always sealed with the hole in the middle of the constant pressure block. When a fire alarm is detected, the contact pads on both sides of the locking component are connected to the alarm system, energizing it and generating a suction force on the squeezing block. Therefore, the locking head retracts under the action of the tension spring, causing the floating block to disengage. The rise of the floating block causes the sealing rod to disengage from the hole in the middle of the constant pressure block, allowing the water inside the water passage chamber to flow downwards to complete the water spraying operation. When the water spraying ends, the back pressure structure allows water to flow through, resetting the floating block, which is then locked again by the locking component. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a structural diagram of the anti-mis-spraying device for the spray pipe in the embodiment.

[0020] Figure 2 This is an exploded view of the anti-mis-spraying device for the spray pipe in the embodiment.

[0021] Figure 3 This is a structural diagram of section A of the anti-mis-spraying device for the spray pipe in the embodiment.

[0022] Figure 4 This is a structural diagram of section B of the anti-mis-spraying device for the spray pipe in the embodiment.

[0023] Figure 5 This is a top view of the anti-mis-spraying device for the spray pipe in the embodiment.

[0024] Figure 6 This is a structural diagram of point C of the anti-mis-spraying device for the spray pipe in the embodiment.

[0025] Figure 7 The exploded view shows the floating block and constant pressure block structure of the anti-mis-spraying device for the spray pipe in the embodiment.

[0026] Figure 8 This is a structural diagram of the floating block of the anti-mis-spraying device for the spray pipe in the embodiment.

[0027] Figure 9This is a structural diagram of the locking component of the anti-mis-spraying device for the spray pipe in the embodiment. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a spray pipe anti-mis-spraying device. The spray pipe anti-mis-spraying device includes a sealing unit 100 and a constant pressure unit 200. The constant pressure unit 200 is disposed at the front end of the sealing unit 100. The sealing unit 100 and the constant pressure unit 200 are respectively capable of sealing and constant pressure operation.

[0033] Specifically, the sealing unit 100 includes a water passage chamber 101, a locking component 102, and a back pressure chamber 103. The locking components 102 are symmetrically arranged on both sides of the water passage chamber 101, and the back pressure chamber 103 is located on the upper side of the water passage chamber 101. The constant pressure unit 200 includes a constant pressure chamber 201, a constant pressure block 202, and a base plate 203. The constant pressure chamber 201 and the constant pressure block 202 are coaxially fitted, and the constant pressure block 202 and the base plate 203 are fixedly connected. The other end of the base plate 203 is located at the bottom of the constant pressure chamber 201.

[0034] In this embodiment, the sealing unit 100 is used to connect with the spray pipe. In actual use, the water pressure in the spray pipe fluctuates, and the original sealing method is prone to leakage and accidental spraying. Therefore, the constant pressure unit 200 can dynamically adjust the local pressure according to the water pressure in the pipe to keep it in a relatively stable state. The locking component 102 is used to lock the floating block inside the water passage chamber 101, so that it is in a locked state when no alarm occurs. The floating block and the constant pressure unit 200 are always sealed. Furthermore, the back pressure chamber 103 restores the sealing effect and constant pressure effect of the anti-accidental spraying device after the spraying ends. The constant pressure block 202 has a conical structure, which increases the contact area between the water and the constant pressure block, so that it can better obtain the pressure of the water flow.

[0035] Example 2

[0036] Reference Figures 2-8 This is the second embodiment of the present invention, which differs from the first embodiment in that it also includes a water passage cavity 101, which includes an inlet pipe 101a and an outlet pipe 101b. The inlet pipe 101a and the outlet pipe 101b are respectively disposed on both sides of the water passage cavity 101, and the inlet pipe 101a and the outlet pipe 101b are connected to the inside of the water passage cavity 101.

[0037] Specifically, the water passage cavity 101 also includes a floating block 101c, a mating groove 101d, and a sealing rod 101e. The floating block 101c slides in conjunction with the water passage cavity 101, and the mating groove 101d engages with the locking component 102.

[0038] Preferably, the floating block 101c includes a limiting groove 101c-1, an arc-shaped groove 101c-2, and a sealing ring 101c-3. The limiting groove 101c-1 is symmetrically arranged on both sides of the floating block 101c, the arc-shaped groove 101c-2 is symmetrically arranged on both sides of the floating block 101c, and the sealing ring 101c-3 is arranged on the side of the floating block 101c.

[0039] Furthermore, the sealing rod 101e includes a conical surface 101e-1 and an annular surface 101e-2. The conical surface 101e-1 is disposed on the upper part of the sealing rod 101e, and the annular surface 101e-2 is disposed on the side of the conical surface 101e-1. The water passage cavity 101 also includes a guide ball 101f, which slides in conjunction with the arc groove 101c-2.

[0040] In this embodiment, the inlet pipe 101a and the outlet pipe 101b are connected to the spray water path. The floating block 101c is disposed inside the water passage 101. The internal structure of the floating block 101c is a conical structure, which increases the contact area with water while increasing the volume, thereby improving the floating block 101c's responsiveness to water pressure. The limiting groove 101c-1 is used to be locked by the locking component 102. When in the normal state, the engagement between the locking component 102 and the limiting groove 101c-1 can restrict the rotational movement of the floating block 101c. The arc-shaped groove 101c-2 on the side of the floating block 101c slides with the guide ball 101f, so that the floating block 101c rotates upward when it rises. This movement mode is the first Firstly, it avoids the sudden change in the motion state of the floating block caused by the large impact of water pressure, and avoids direct impact damage to the floating block and the inside of the pipeline. Furthermore, by limiting the radial rotation of the floating block, it limits its axial movement, preventing the floating block 101c from being directly subjected to axial force, making its movement smoother. The conical surface 101e-1 forms a gap with the constant pressure block below. During the unlocking and rising phase of the floating block 101c, the contact area between the conical surface 101e-1 and the water increases, and the annular surface 101e-2 allows the water pressure to push the floating block 101c more directly. The cooperation between the conical surface 101e-1 and the annular surface 101e-2 causes the floating block 101c to be pushed upward by the water pressure.

[0041] Example 3

[0042] Reference Figures 1-9 This is the third embodiment of the present invention, which differs from the previous two embodiments in that: the locking component 102 includes a locking head 102a, a T-shaped frame 102b, and a reset member 102c. The locking head 102a engages with the limiting groove 101c-1, and the reset member 102c is disposed inside the T-shaped frame 102b. The locking head 102a includes a tapered rod 102a-1, a pull rod 102a-2, and a tension spring 102a-3. The tapered rod 102a-1 is disposed inside the T-shaped frame 102b, the pull rod 102a-2 is disposed on one side of the tapered surface of the tapered rod 102a-1, and the tension spring 102a-3 is fixedly connected to the pull rod 102a-2.

[0043] Furthermore, the T-shaped frame 102b includes a contact pad 102b-1, an electromagnetic coil 102b-11 is provided inside the contact pad 102b-1, and the reset member 102c includes a pressing head 102c-1, which is symmetrically arranged on both sides of the T-shaped frame 102b, and a magnetic block 102c-11 is provided at the end of the pressing head 102c-1.

[0044] Preferably, the back pressure chamber 103 includes a sealing cover 103a and a back pressure water passage 103b. The sealing cover 103a is disposed at the top of the back pressure chamber 103, and the back pressure water passage 103b is disposed in the middle of the sealing cover 103a. The constant pressure block 202 includes a pressure diffuser ring 202a and a second sealing ring 202b. The pressure diffuser ring 202a is disposed on the inner side of the constant pressure block 202, and the second sealing ring 202b is disposed on the outer ring of the constant pressure block 202. The base plate 203 includes a constant pressure spring 203a disposed in the middle of the base plate 203.

[0045] Specifically, the locking head 102a engages with the limiting groove 101c-1, preventing the floating block 101c from rotating. Due to the interaction between the arc-shaped groove 101c-2 and the guide ball 101f, a locking operation is formed on the floating block 101c. When an alarm is triggered, the spray device starts working. At this time, the contact pad 102b-1 of the locking assembly 102 is energized with the alarm system, causing the internal electromagnetic coil 102b-11 to acquire magnetism, generating an attractive force on the magnetic block 102c-11. This causes the pressing head 102c-1 to move outward, providing space for the retraction of the tapered rod 102a-1. Under the action of the tension spring 102a-3, the pull rod 102a-2 pulls the tapered rod 102a-1, causing the locking head 102a to disengage from the limiting groove. When the groove 101c-1 is in position, the water pressure in the water passage cavity 101 pushes the floating block 101c upward, causing the sealing rod 101e to disengage from the constant pressure block 202, allowing water to flow through the bottom of the constant pressure unit 200. The pressure diffuser ring 202a can generate a certain water-blocking effect, allowing the constant pressure block 202 to obtain greater pressure. The design of the sealing ring 202b keeps the constant pressure block 202 and the constant pressure cavity 201 sealed, so that the water flow can only flow out from the middle of the constant pressure block 202. The cooperation between the constant pressure spring 203a and the constant pressure block 202 allows the water passage cavity to dynamically change its internal volume, improve water flow efficiency, and reduce certain pressure fluctuations. Finally, when the spraying ends, water flows through the back pressure cavity 103, pressing the floating block 101c into the water passage cavity 101.

[0046] In summary, when there is no fire alarm, the locking assembly locks the floating block inside the water passage chamber, preventing it from floating during water flow. The constant pressure unit located below is affected by water pressure fluctuations, causing its internal constant pressure block to press against the constant pressure spring. This changes the internal volume of the constant pressure unit, affecting the water pressure inside the pipeline and consequently influencing the local water pressure on the valve. The sealing rod remains sealed to the hole in the center of the constant pressure block. When a fire alarm is triggered, the contact pads on both sides of the locking assembly connect to the alarm system, energizing it and generating a suction force on the compression block. Consequently, the locking head retracts under the action of the tension spring, causing the floating block to disengage. The rise of the floating block causes the sealing rod to disengage from the hole in the center of the constant pressure block, allowing the water inside the water passage chamber to flow downwards to complete the water spraying operation. When the water spraying ends, the back pressure structure allows water to flow through, resetting the floating block, which is then locked back by the locking assembly.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for preventing accidental spraying of a sprinkler pipe, characterized in that: include, A sealing unit (100) includes a water passage chamber (101), a locking assembly (102), and a back pressure chamber (103). The locking assemblies (102) are symmetrically arranged on both sides of the water passage chamber (101), and the back pressure chamber (103) is located on the upper side of the water passage chamber (101). The water passage cavity (101) further includes a floating block (101c), a mating groove (101d), and a sealing rod (101e). The floating block (101c) is slidably engaged with the water passage cavity (101), and the mating groove (101d) is engaged with the locking assembly (102). The sealing rod (101e) includes a conical surface (101e-1) and an annular surface (101e-2). The conical surface (101e-1) is located on the upper part of the sealing rod (101e), and the annular surface (101e-2) is located on the side of the conical surface (101e-1). The back pressure chamber (103) includes a sealing cover (103a) and a back pressure water passage (103b). The sealing cover (103a) is located at the top of the back pressure chamber (103), and the back pressure water passage (103b) is located in the middle of the sealing cover (103a). as well as, A constant pressure unit (200) includes a constant pressure chamber (201), a constant pressure block (202), and a base plate (203). The constant pressure chamber (201) and the constant pressure block (202) are coaxially fitted. The constant pressure block (202) and the base plate (203) are fixedly connected. The other end of the base plate (203) is located at the bottom of the constant pressure chamber (201). The constant pressure block (202) includes a pressure-diffusing ring (202a) and a sealing ring (202b). The pressure-diffusing ring (202a) is located inside the constant pressure block (202), and the sealing ring (202b) is located on the outer ring of the constant pressure block (202). The base plate (203) includes a constant pressure spring (203a) located in its middle.

2. The anti-mis-spraying device for the sprinkler pipe as described in claim 1, characterized in that: The water passage cavity (101) includes an inlet pipe (101a) and an outlet pipe (101b), which are respectively located on both sides of the water passage cavity (101) and are connected to the interior of the water passage cavity (101).

3. The anti-mis-spraying device for the sprinkler pipe as described in claim 2, characterized in that: The floating block (101c) includes a limiting groove (101c-1), an arc-shaped groove (101c-2), and a sealing ring (101c-3). The limiting groove (101c-1) is symmetrically arranged on both sides of the floating block (101c), the arc-shaped groove (101c-2) is symmetrically arranged on both sides of the floating block (101c), and the sealing ring (101c-3) is arranged on the side of the floating block (101c).

4. The anti-mis-spraying device for the sprinkler pipe as described in claim 3, characterized in that: The water passage cavity (101) also includes a guide ball (101f), which slides in conjunction with the arc groove (101c-2).

5. The anti-mis-spraying device for the sprinkler pipe as described in claim 4, characterized in that: The locking assembly (102) includes a locking head (102a), a T-shaped frame (102b), and a reset member (102c). The locking head (102a) engages with the limiting groove (101c-1), and the reset member (102c) is disposed inside the T-shaped frame (102b). The locking head (102a) includes a tapered rod (102a-1), a pull rod (102a-2), and a tension spring (102a-3). The tapered rod (102a-1) is disposed inside the T-shaped frame (102b), the pull rod (102a-2) is disposed on one side of the tapered surface of the tapered rod (102a-1), and the tension spring (102a-3) is fixedly connected to the pull rod (102a-2).

6. The anti-mis-spraying device for the sprinkler pipe as described in claim 5, characterized in that: The T-shaped frame (102b) includes a contact pad (102b-1), and an electromagnetic coil (102b-11) is disposed inside the contact pad (102b-1). The reset member (102c) includes a pressing head (102c-1), which is symmetrically arranged on both sides of the T-shaped frame (102b). A magnetic block (102c-11) is disposed at the end of the pressing head (102c-1).

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