Adjustable fixing support for fire-fighting sprinkling hose in suspended ceiling

Abstract

The invention discloses an adjustable fixing support for a fire-fighting sprinkling hose in a suspended ceiling, and relates to the technical field of fire-fighting engineering. The adjustable fixing support for the fire-fighting spraying water sprinkling hose in the suspended ceiling comprises a keel, a fire-fighting water supply pipe, a spraying assembly, a clamping mechanism, a positioning mechanism and a position adjusting mechanism, a galvanized square pipe is arranged over the keel, the galvanized square pipe is movably sleeved with a movable fastener, and the position adjusting mechanism is arranged between the keel and the galvanized square pipe. The position adjusting mechanism comprises movable frames, second threaded rods and locking pieces, the two movable frames are installed on the keel in a sliding mode, and the galvanized square pipe movably penetrates through the two movable frames. According to the adjustable fixing support for the fire-fighting spraying water sprinkling hose in the suspended ceiling, through cooperation of the position adjusting mechanism, the positioning mechanism and the clamping mechanism, a spraying head can be driven to move in three axial directions in a space within a certain range, the accurate position of the spraying head can be accurately and rapidly determined, repeated measuring, discharging and pipeline machining are not needed, and position tracking deviation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of fire protection engineering, and in particular to an adjustable fixing bracket for a fire sprinkler hose in a suspended ceiling. Background Art

[0002] Fire sprinkler is an important fire extinguishing equipment in fire protection engineering and is widely used in various buildings. As people's requirements for the appearance of modern buildings increase, the original exposed ceiling surface has been gradually replaced by suspended ceiling, and the number of drooping fire sprinkler heads has increased.

[0003] However, the traditional hard pipe connection method has many connection points, high risk of leakage and low safety. It requires repeated measurement and cutting before installation, which is inefficient and requires high manual skills and labor costs. The working surface must be accurately positioned first, otherwise the pipe length will be inconvenient to adjust and the consistency of the installation height will be uncontrollable. There is even the risk of damaging the ceiling and sinking in the later stage. For this reason, we propose an adjustable fixed bracket for the fire sprinkler hose in the ceiling. Summary of the invention

[0004] The purpose of the present invention is to provide an adjustable fixing bracket for a fire sprinkler hose in a suspended ceiling, which can solve the problem that problems easily occur in the traditional fire sprinkler installation method.

[0005] To achieve the above object, the present invention provides the following technical solution: an adjustable fixing bracket for a fire sprinkler hose in a suspended ceiling, comprising:

[0006] The keel has a galvanized square tube directly above it, and a movable fastener is provided on the movable sleeve of the galvanized square tube;

[0007] A fire water supply pipe is arranged just above the keel and is used to supply water;

[0008] A spray assembly is arranged on a fire water supply pipe and is used to realize fire spraying;

[0009] A clamping mechanism, which is arranged on the movable fastener and is used to fix the spray assembly;

[0010] A positioning mechanism, which is arranged on the movable fastener and is used to assist the spray assembly in position adjustment;

[0011] The positioning mechanism is arranged between the keel and the galvanized square tube. The positioning mechanism includes a movable frame, a second threaded rod and a locking piece. Two sets of movable frames are slidably installed on the keel. The galvanized square tube movably runs through the two sets of movable frames. A set of second threaded rods are threadedly installed on the front sides of the two sets of movable frames. A set of locking pieces are rotatably installed at one end of the two sets of second threaded rods.

[0012] Preferably, the positioning mechanism also includes a turning handle and a first anti-slip pad, a turning handle is fixedly installed on the other end of the two groups of second threaded rods, and a first anti-slip pad is fixedly installed on the rear outer surface of the two groups of locking members, and the two groups of first anti-slip pads are in conflict with the keel.

[0013] Preferably, the positioning mechanism includes a U-shaped fixing frame, a movable rod, a perforation, a positioning piece, a second anti-slip pad, a handle and a spring, a U-shaped fixing frame is fixedly installed on the outer surface of one side of the movable fastener, a movable rod is movably passed through the U-shaped fixing frame, a perforation is opened on one side of the movable fastener, a positioning piece is fixedly installed on one end of the movable rod, the positioning piece fits with the inside of the perforation, a second anti-slip pad is fixedly installed on the outer surface of one side of the positioning piece, the second anti-slip pad is in conflict with the galvanized square tube, a handle is fixedly installed on the other end of the movable rod, a spring is sleeved on the movable rod, one end of the spring is fixedly connected to the positioning piece, and the other end of the spring is fixedly connected to the U-shaped fixing frame.

[0014] Preferably, the clamping mechanism includes a first clamping plate, a third threaded rod, a second clamping plate, a limiting groove, a limiting protrusion and a second turning handle; the first clamping plate is integrally provided on the outer surface of the other side of the movable fastener, the third threaded rod is rotatably mounted on the front outer surface of the first clamping plate, the second clamping plate is threadedly mounted on the third threaded rod, a limiting protrusion is integrally provided on the outer surface of one side of the second clamping plate, a limiting groove is provided on the other side of the movable fastener, the limiting protrusion is clamped in the limiting groove, and the second turning handle is fixedly mounted on one end of the third threaded rod.

[0015] Preferably, the spray assembly includes a galvanized steel pipe, a water hose, a galvanized short pipe and a spray head. The outer surface of the fire water supply pipe is fixedly installed with a galvanized steel pipe that is connected to the interior thereof. One end of the galvanized steel pipe is connected to the water hose by bolts. One end of the water hose is welded with a galvanized short pipe, and one end of the galvanized short pipe is connected to the spray head by bolts.

[0016] Preferably, the water delivery hose is composed of a braided mesh and a corrugated tube, the braided mesh is arranged on the outside of the corrugated tube, and both the braided mesh and the corrugated tube are made of 304 stainless steel.

[0017] Preferably, two groups of bolt holes are opened on the top of the galvanized square tube, a group of first threaded rods are threadedly installed on the top of the two groups of movable frames, a group of first turning handles are fixedly installed at one end of the two groups of first threaded rods, and the two groups of first threaded rods are threadedly installed in the corresponding bolt holes.

[0018] Preferably, a group of sponge pads are fixedly mounted on the surfaces of the second clamping plate and the first clamping plate that are close to each other.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The adjustable fixed bracket of the fire sprinkler hose in the suspended ceiling can drive the sprinkler head to move in three axes within a certain range of space through the coordinated use of the adjustment mechanism, the positioning mechanism and the clamping mechanism. It can accurately and quickly determine the exact position of the sprinkler head, and there is no need to repeatedly measure and cut the pipes to avoid positioning deviation. It solves the problem of the traditional hard pipe connection method with many connection points, high leakage risk and low safety. It needs to measure and cut the pipes repeatedly before installation, which is inefficient, has high requirements on manual skills and labor costs, and the working surface must be accurately positioned first. Otherwise, the pipe length is inconvenient to adjust, and the consistency of the installation height is uncontrollable. There is even the risk of damaging the suspended ceiling and sinking in the later stage, which improves the practicality of the bracket.

[0021] (2) The adjustable fixing bracket for the fire sprinkler hose in the suspended ceiling can adjust the distance between the first clamping plate and the second clamping plate through the coordinated use of the clamping mechanism and the sponge pad, and can clamp galvanized short pipes of different sizes to achieve the installation of sprinkler heads of different specifications. Under the action of the sponge pad, the stability of the clamping mechanism on the galvanized short pipe can be improved, thereby ensuring the use effect of the bracket and facilitating the promotion and use of the bracket.

[0022] (3) The adjustable fixing bracket of the fire sprinkler hose in the suspended ceiling improves and customizes the fire sprinkler hose by using the water delivery hose and the galvanized short pipe. It overcomes the electrochemical corrosion problem between stainless steel and carbon steel in the pipe head of the existing sprinkler hose on the market. It is made of 304 stainless steel, which has strong corrosion resistance and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 It is a front perspective view of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the movable frame of the present invention and its associated components;

[0026] Figure 3 It is a front perspective view of the galvanized square tube of the present invention;

[0027] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0028] Figure 5 It is a left perspective view of the movable fastener and its associated components of the present invention;

[0029] Figure 6 It is a front perspective view of the local positioning mechanism of the present invention;

[0030] Figure 7is a rear perspective view of the movable fastener of the present invention and its associated components;

[0031] Figure 8 It is a schematic diagram of the structure of the spray assembly of the present invention.

[0032] 1. keel; 2. fire water supply pipe; 3. galvanized square tube; 4. movable fastener; 5. adjustment mechanism; 51. movable frame; 52. second threaded rod; 53. turning handle; 54. locking member; 55. first anti-slip pad; 6. positioning mechanism; 61. U-shaped fixing frame; 62. movable rod; 63. perforation; 64. positioning member; 65. second anti-slip pad; 66. pull handle; 67. spring; 7. clamping mechanism; 71. first clamping plate; 72. third threaded rod; 73. second clamping plate; 74. limiting groove; 75. limiting protrusion; 76. second turning handle; 8. spray assembly; 81. galvanized steel pipe; 82. water supply hose; 83. galvanized short pipe; 84. spray head; 9. first threaded rod; 10. first turning handle; 11. bolt hole; 12. sponge pad. DETAILED DESCRIPTION

[0033] See also Figure 1-8 The present invention provides a technical solution: an adjustable fixing bracket for a fire sprinkler hose in a suspended ceiling, comprising a keel 1, a fire water supply pipe 2, a spray assembly 8, a clamping mechanism 7, a positioning mechanism 6 and an adjustment mechanism 5. A galvanized square tube 3 is arranged just above the keel 1, and a movable fastener 4 is arranged on the movable sleeve of the galvanized square tube 3. The fire water supply pipe 2 is arranged just above the keel 1, and the fire water supply pipe 2 is used to supply water. The spray assembly 8 is arranged on the fire water supply pipe 2, and the spray assembly 8 is used to realize fire sprinkler The clamping mechanism 7 is arranged on the movable fastener 4, and the clamping mechanism 7 is used to fix the spray assembly 8. The positioning mechanism 6 is arranged on the movable fastener 4, and the positioning mechanism 6 is used to assist the spray assembly 8 in position adjustment. Two groups of bolt holes 11 are opened on the top of the galvanized square tube 3. A group of first threaded rods 9 are threadedly installed on the top of the two groups of movable frames 51. A group of first turning handles 10 are fixedly installed at one end of the two groups of first threaded rods 9. The two groups of first threaded rods 9 are threadedly installed in the corresponding bolt holes 11.

[0034] The positioning mechanism 5 is arranged between the keel 1 and the galvanized square tube 3, and includes a movable frame 51, a second threaded rod 52 and a locking piece 54. Two sets of movable frames 51 are slidably installed on the keel 1, and the galvanized square tube 3 movably passes through the two sets of movable frames 51. A set of second threaded rods 52 are threadedly installed on the front sides of the two sets of movable frames 51, and a set of locking pieces 54 are rotatably installed at one end of the two sets of second threaded rods 52.

[0035] The positioning mechanism 5 also includes a turning handle 53 and a first anti-skid pad 55. The other ends of the two groups of second threaded rods 52 are fixedly installed with a group of turning handles 53, and the rear outer surfaces of the two groups of locking members 54 are fixedly installed with a group of first anti-skid pads 55. The two groups of first anti-skid pads 55 are in conflict with the keel 1. Through the coordinated use of the positioning mechanism 5, the positioning mechanism 6 and the clamping mechanism 7, the sprinkler head 84 can be driven to move in three axes within a certain range of space, and the exact position of the sprinkler head 84 can be accurately and quickly determined. There is no need to repeatedly measure and cut pipes to avoid positioning deviation, which solves the problem of traditional hard pipe connection method with many connection points, high risk of leakage and low safety. Repeated measurement and cutting are required before installation, which is inefficient, has high requirements on manual technology and labor costs, and the working surface must be accurately positioned first. Otherwise, the length of the pipe is inconvenient to adjust, and the consistency of the installation height is uncontrollable. There is even the risk of damaging the ceiling and sinking in the later stage, which improves the practicality of the bracket.

[0036] The positioning mechanism 6 includes a U-shaped fixing frame 61, a movable rod 62, a through hole 63, a positioning piece 64, a second anti-slip pad 65, a handle 66 and a spring 67. The U-shaped fixing frame 61 is fixedly installed on the outer surface of one side of the movable fastener 4, and the movable rod 62 is movably penetrated on the U-shaped fixing frame 61. A through hole 63 is provided on one side of the movable fastener 4. A positioning piece 64 is fixedly installed on one end of the movable rod 62, and the positioning piece 64 is fitted with the inside of the through hole 63. A second anti-slip pad 65 is fixedly installed on the outer surface of one side of the positioning piece 64, and the second anti-slip pad 65 is in conflict with the galvanized square tube 3. A handle 66 is fixedly installed on the other end of the movable rod 62. A spring 67 is sleeved on the movable rod 62, one end of the spring 67 is fixedly connected to the positioning piece 64, and the other end of the spring 67 is fixedly connected to the U-shaped fixing frame 61.

[0037] The clamping mechanism 7 includes a first clamping plate 71, a third threaded rod 72, a second clamping plate 73, a limiting groove 74, a limiting protrusion 75 and a second turning handle 76. The first clamping plate 71 is integrally formed on the outer surface of the other side of the movable fastener 4, the third threaded rod 72 is rotatably mounted on the front outer surface of the first clamping plate 71, the third threaded rod 72 is threadedly mounted on the second clamping plate 73, a limiting protrusion 75 is integrally formed on the outer surface of one side of the second clamping plate 73, a limiting groove 74 is provided on the other side of the movable fastener 4, the limiting protrusion 75 is clamped in the limiting groove 74, and the third threaded rod 72 is rotatably mounted on the front outer surface of the first clamping plate 71. The second clamping plate 73 is threadedly mounted on the third threaded rod 72. A limiting protrusion 75 is integrally formed on the outer surface of one side of the second clamping plate 73. A second turning handle 76 is fixedly installed at one end of the grooved rod 72, and a group of sponge pads 12 are fixedly installed on the surfaces of the second clamping plate 73 and the first clamping plate 71 that are close to each other. Through the coordinated use of the clamping mechanism 7 and the sponge pad 12, the distance between the first clamping plate 71 and the second clamping plate 73 can be adjusted, and galvanized short pipes 83 of different sizes can be clamped to achieve the installation of sprinkler heads 84 of different specifications. Under the action of the sponge pad 12, the stability of the clamping mechanism 7 on the galvanized short pipe 83 can be improved, thereby ensuring the use effect of the bracket, which is conducive to the promotion and use of the bracket.

[0038] The spray assembly 8 includes a galvanized steel pipe 81, a water hose 82, a galvanized short pipe 83 and a sprinkler head 84. The outer surface of the fire water supply pipe 2 is fixedly installed with a galvanized steel pipe 81 that is connected to the inside thereof. One end of the galvanized steel pipe 81 is connected to the water hose 82 by bolts. One end of the water hose 82 is welded with a galvanized short pipe 83. One end of the galvanized short pipe 83 is connected to the sprinkler head 84 by bolts. The water hose 82 is composed of a woven mesh and a bellows. The woven mesh is arranged on the outside of the bellows. Both the woven mesh and the bellows are made of 304 stainless steel. Through the coordinated use of the water hose 82 and the galvanized short pipe 83, the fire sprinkler hose is improved and customized, which overcomes the problem of electrochemical corrosion between stainless steel and carbon steel in the pipe head of the existing sprinkler hose on the market. The 304 stainless steel material is used, which has strong corrosion resistance and long service life.

[0039] Working principle: install the keel 1 and the fire water supply pipe 2 in the ceiling, install the sprinkler assembly 8 on the fire water supply pipe 2, and make the galvanized short pipe 83 pass through the first clamping plate 71 and the second clamping plate 73, turn the second turning handle 76, drive the third threaded rod 72 to rotate, drive the second clamping plate 73 to move closer to the first clamping plate 71, until it cooperates with the first clamping plate 71 to clamp the galvanized short pipe 83. When it is necessary to adjust the position of the sprinkler head 84, you can directly pull the handle 66, and drive the positioning member 64 to move out of the through hole 63 through the movable rod 62. The second anti-slip pad 65 is no longer close to the galvanized square tube 3. At this time, the spring 67 is compressed, and then the movable fastener 4 can be arbitrarily slid on the galvanized square tube 3 to adjust the front and rear positions of the sprinkler head 84. Release the handle 66 and Under the action of the spring, the positioning piece 64 is reset, and the second anti-skid pad 65 is close to the galvanized square tube 3 to position the movable fastener 4. The two sets of rotating handles 53 can also be rotated to drive the two sets of second threaded rods 52 to rotate outward, and drive the two sets of locking pieces 54 to move, so that the two sets of first anti-skid pads 55 are no longer close to the keel 1. At this time, the two sets of movable frames 51 can be slid on the keel 1 to drive the galvanized square tube 3 to move left and right, and adjust the left and right positions of the sprinkler head 84. The two sets of rotating handles 53 can be reversed to reset the two sets of locking pieces 54, so that the two sets of first anti-skid pads 55 are close to the keel 1 to position the two sets of movable frames 51. After completing the horizontal positioning, the clamping mechanism 7 can release the clamping of the galvanized short tube 83 again, and adjust the elevation of the sprinkler head 84 in the vertical direction. After completion, clamp and fix it again.

[0040] The present invention provides a process flow:

[0041] 1. Customized fire sprinkler hose

[0042] (1) The existing sprinkler hoses on the market are made of stainless steel. There is electrochemical corrosion between the external thread of the pipe head and the internal thread of the elbow, tee, straight and other malleable cast iron pipe fittings, which causes service life problems and reduces reliability.

[0043] (2) Make customized requirements to the manufacturer. The outer thread joint of the water inlet section of the sprinkler hose is made of carbon steel. The connection with the stainless steel short pipe is welded using heterogeneous steel welding rods such as A302, A307, and A062. The braided mesh and corrugated pipe are made of 304 stainless steel.

[0044] (3) According to the construction drawings of water supply, drainage, decoration and other specialties, combined with the comprehensive layout of pipelines, select several length specifications and corresponding quantities.

[0045] 2. Install water supply pipes, pressure test and flushing

[0046] According to the construction drawings and the comprehensive pipeline layout made in combination with the actual situation on site, install the fire water supply main and water distribution branch pipes, install elbows or reducers at appropriate locations, and seal them with raw tape wrapped around the outer threads of the plugs.

[0047] Carry out water pressure strength test, tightness test and flushing of the pipe network in accordance with the construction design instructions and GB50261-2017 "Construction and Acceptance Specifications for Automatic Sprinkler Fire-Fighting Systems" and GB55036-2022 "General Specifications for Fire-Fighting Facilities".

[0048] Water pressure strength test: When the system design working pressure is equal to or less than 1.0MPa, the water pressure strength test pressure should be 1.5 times the design working pressure and should not be lower than 1.4MPa; when the system design working pressure is greater than 1.0MPa, the water pressure strength test pressure should be the working pressure plus 0.4MPa; after reaching the test pressure and stabilizing the pressure for 30 minutes, the pipe network should have no leakage, no deformation, and the pressure drop should not be greater than 0.05MPa. Water pressure tightness test: It should be carried out after the water pressure strength test and pipe network flushing are qualified. The test pressure should be the design working pressure, stabilized for 24 hours, and there should be no leakage.

[0049] 3. Optional sprinkler hose

[0050] Use a tape measure to measure the vertical distance from the reserved pipe opening to the finished ceiling surface. Combined with the actual situation on site, measure and evaluate the maximum horizontal distance between the pipe opening and the sprinkler head. After multiple field tests, it is found that the extra length of the hose curve should be controlled at about 0.3m for the most economical and practical purpose. Therefore, the following formula is obtained to calculate the length of the fire sprinkler hose:

[0051]

[0052] Where: L——represents the length of the fire sprinkler hose, unit: m;

[0053] H——indicates the vertical distance between the reserved pipe opening and the finished surface of the ceiling;

[0054] B——Indicates the maximum horizontal distance between the reserved pipe opening and the nozzle.

[0055] 4. Install nozzles and hoses

[0056] (1) Use a special wrench to install the fire sprinkler head into the internal thread of the outlet short pipe, and seal the thread with raw tape or pipe adhesive. It is strictly forbidden to use hemp thread.

[0057] (2) Use a special wrench to tighten the DN25 outer thread on the upper end of the hose to the reserved pipe opening. The maximum tightening torque is 20N·m. At the same time, check and ensure that the sealing ring is intact and installed in place. Pipe adhesive, hemp, or raw tape can be used for this connection.

[0058] 5. Install the bracket

[0059] (1) After the main keel of the decorative ceiling is installed, the decoration construction unit shall force the sprinkler to track the position, or use other methods to accurately locate the installation position of the sprinkler head.

[0060] (2) Visually locate the location where the fire sprinkler head is to be installed. In general, the sprinkler head should be located between the two main keels as much as possible. Install the bracket on the main keel of the ceiling, visually observe to ensure that the top part of the main keel is completely inserted into the foot of the square tube fastener, and tighten the locking bolts on the side with a tightening torque of about 4N·m.

[0061] 6. Fixed square tube

[0062] Insert the galvanized square tube into the reserved hole of the movable frame, insert the fastener into the square tube, and place it between the two movable frames. Tighten the bolts on the top of the two movable frames to fix the square tube. The tightening torque is about 4N·m.

[0063] 7. Fixed nozzle

[0064] Move the fastener to the desired position. Bend the hose and place the outlet short pipe of the hose in the fastener. Adjust the height of the outlet short pipe to ensure the correct elevation of the nozzle. Close the short pipe fastener as shown in the figure and tighten the bolt to 4N·m, and the outlet short pipe will be locked.

[0065] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An adjustable fixing bracket for a fire sprinkler hose in a suspended ceiling, characterized in that: include: A keel (1) is provided with a galvanized square tube (3) directly above the keel, and a movable fastener (4) is provided on the movable sleeve of the galvanized square tube (3); A fire-fighting water supply pipe (2), which is arranged just above the keel (1), and is used to supply water; A spray assembly (8), which is arranged on the fire water supply pipe (2), and the spray assembly (8) is used to implement fire spraying; A clamping mechanism (7) is arranged on the movable fastener (4), and the clamping mechanism (7) is used to fix the spray assembly (8); A positioning mechanism (6) is arranged on the movable fastener (4), and the positioning mechanism (6) is used to assist the spray assembly (8) in adjusting its position; The positioning mechanism (5) is arranged between the keel (1) and the galvanized square tube (3), and comprises a movable frame (51), a second threaded rod (52) and a locking member (54). Two sets of movable frames (51) are slidably mounted on the keel (1), and the galvanized square tube (3) movably passes through the two sets of movable frames (51). A set of second threaded rods (52) are threadedly mounted on the front sides of the two sets of movable frames (51), and a set of locking members (54) are rotatably mounted on one end of the two sets of second threaded rods (52).

2. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 1, characterized in that: The positioning mechanism (5) further comprises a rotating handle (53) and a first anti-skid pad (55); the other ends of the two sets of second threaded rods (52) are fixedly mounted with a set of rotating handles (53); the rear outer surfaces of the two sets of locking members (54) are fixedly mounted with a set of first anti-skid pads (55); the two sets of first anti-skid pads (55) are in contact with the keel (1).

3. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 2, characterized in that: The positioning mechanism (6) comprises a U-shaped fixing frame (61), a movable rod (62), a through hole (63), a positioning piece (64), a second anti-slip pad (65), a handle (66) and a spring (67); the U-shaped fixing frame (61) is fixedly mounted on the outer surface of one side of the movable fastener (4); the movable rod (62) is movably penetrated through the U-shaped fixing frame (61); a through hole (63) is provided on one side of the movable fastener (4); and the positioning piece (64) is fixedly mounted on one end of the movable rod (62). ), the positioning member (64) fits with the inside of the perforation (63), a second anti-skid pad (65) is fixedly installed on the outer surface of one side of the positioning member (64), the second anti-skid pad (65) contacts the galvanized square tube (3), a pull handle (66) is fixedly installed on the other end of the movable rod (62), a spring (67) is sleeved on the movable rod (62), one end of the spring (67) is fixedly connected to the positioning member (64), and the other end of the spring (67) is fixedly connected to the U-shaped fixing frame (61).

4. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 3, characterized in that: The clamping mechanism (7) comprises a first clamping plate (71), a third threaded rod (72), a second clamping plate (73), a limiting groove (74), a limiting protrusion (75) and a second turning handle (76); the first clamping plate (71) is integrally formed on the outer surface of the other side of the movable fastener (4); the third threaded rod (72) is rotatably mounted on the front outer surface of the first clamping plate (71); the second clamping plate (73) is threadedly mounted on the third threaded rod (72); a limiting protrusion (75) is integrally formed on the outer surface of one side of the second clamping plate (73); a limiting groove (74) is provided on the other side of the movable fastener (4); the limiting protrusion (75) is clamped in the limiting groove (74); and the second turning handle (76) is fixedly mounted on one end of the third threaded rod (72).

5. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 4, characterized in that: The spray assembly (8) comprises a galvanized steel pipe (81), a water hose (82), a galvanized short pipe (83) and a spray head (84); the outer surface of the fire water supply pipe (2) is fixedly mounted with a galvanized steel pipe (81) which communicates with the interior thereof; one end of the galvanized steel pipe (81) is connected to the water hose (82) by bolts; one end of the water hose (82) is welded with a galvanized short pipe (83); and one end of the galvanized short pipe (83) is connected to the spray head (84) by bolts.

6. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 5, characterized in that: The water delivery hose (82) is composed of a braided mesh sleeve and a corrugated pipe, wherein the braided mesh sleeve is arranged on the outside of the corrugated pipe, and both the braided mesh sleeve and the corrugated pipe are made of 304 stainless steel.

7. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 6, characterized in that: Two groups of bolt holes (11) are provided on the top of the galvanized square tube (3); a group of first threaded rods (9) are threadedly installed on the top of the two groups of movable frames (51); a group of first turning handles (10) are fixedly installed at one end of the two groups of first threaded rods (9); and the two groups of first threaded rods (9) are threadedly installed in the corresponding bolt holes (11).

8. The adjustable fixing bracket for fire sprinkler hose in suspended ceiling according to claim 7, characterized in that: A group of sponge pads (12) are fixedly mounted on the surfaces of the second clamping plate (73) and the first clamping plate (71) that are close to each other.

Images