Water testing connector for fire-fighting detection

Abstract

The utility model discloses a water test joint for fire-fighting detection, which relates to the technical field of fire-fighting detection equipment and comprises a shell, a spray head is fixedly mounted on the surface of the shell, a switch valve is fixedly mounted on the surface of the spray head, a pressure gauge penetrates through and is fixedly mounted on the surface of the shell, and a pipeline is fixedly mounted on the surface of the spray head. The pressure gauge is fixedly installed on the surface of the pipeline, and a sealing device and a limiting device are arranged in the shell. Wherein the sealing device comprises a sliding block, a limiting block, a limiting plate, a rubber bolt, a sealing ring, a hollow pipe, a sealing plate, a telescopic rod and a push rod, the limiting block is slidably installed at the top of the sliding block, the limiting plate is fixedly installed on the surface of the rubber bolt, the limiting plate moves to drive the rubber bolt to move, and the rubber bolt moves to pull the sealing ring tightly. The connector can be locked by the sealing ring, sealing is achieved, and the accuracy of measured data is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detection, in particular to a water testing joint for fire detection. Background Art

[0002] The water test joint for fire testing is one of the key equipment used to test and maintain the fire protection system. It is usually installed on the pipes of the fire protection system to test the water before the system is put into operation to ensure that the system is working properly, as well as to regularly test the water flow and pressure of the system.

[0003] The patent with the patent announcement number CN219847977U relates to the field of fire detection technology, and discloses a water spray end water test joint, including a water test joint body, a mounting assembly is arranged above the water test joint body, a lighting assembly is arranged above the water test joint body, the mounting assembly includes a mounting block fixedly mounted on the top of the water test joint body, a mounting groove is provided on the top of the mounting block, and the internal sliding connection of the mounting groove has a pressure measuring instrument with one end passing through and extending into the inside of the water test joint body. The water spray end water test joint can quickly install and disassemble the pressure measuring instrument on the top of the water test joint body by arranging the mounting assembly, which is convenient for replacing and repairing the pressure measuring instrument, avoiding the troublesome problem of repairing and replacing the pressure measuring instrument when it is damaged, and can illuminate the pressure measuring instrument by arranging the lighting assembly, and the lighting angle can also be adjusted, which is highly practical.

[0004] The above patent realizes that the pressure measuring instrument can be illuminated by setting a lighting component, and the lighting angle can also be adjusted. However, when measuring water pressure, the pressure in the water pipe will leak when the pressure increases, resulting in inaccurate actual data measured when measuring water pressure. If the water pressure does not meet the relevant standards, it may affect its reliability under fire conditions. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a water testing joint for fire detection, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a water test joint for fire detection, comprising a shell, a nozzle is fixedly installed on the surface of the shell, a switch valve is fixedly installed on the surface of the nozzle, a pressure gauge is passed through and fixedly installed on the surface of the shell, a pipe is fixedly installed on the surface of the nozzle, the pressure gauge is fixedly installed on the surface of the pipe, a groove is opened on the surface of the pipe, and a sealing device and a limit device are arranged inside the shell;

[0007] The sealing device includes a sliding block, a limit block, a limit plate, a rubber plug, a sealing ring, a hollow tube, a sealing plate, a telescopic rod and a push rod. The sliding block is slidably installed in a groove set on the surface of the pipeline, the limit block is slidably installed on the top of the sliding block, one end of the sealing ring is fixedly installed on the surface of the pipeline, the rubber plug penetrates and is slidably installed on the surface of the sealing ring, the limit plate is fixedly installed on the surface of the rubber plug, and the movement of the limit plate will drive the rubber plug to move, the hollow tube penetrates and is fixed on the surface of the pipeline, the sealing plate is slidably installed on the inner wall of the hollow tube, the fixed end of the telescopic rod is fixedly installed on the top of the sealing plate, and the movement of the sealing plate will drive the telescopic rod to move, the push rod is rotatably installed on the surface of the telescopic rod, and the sealing cover is fixedly installed on the inner wall of the hollow tube.

[0008] According to the above technical solution, a No. 1 spring is arranged between the sliding block and the pipeline, and a No. 2 spring is arranged between the sealing plate and the cover. The sliding block is driven to reset by the No. 1 spring, and the sealing plate is driven to reset by the No. 2 spring.

[0009] According to the above technical solution, a torsion spring is arranged between the push rod and the telescopic rod, the limit block is in contact with the limit plate, and the side of the limit block in contact with the limit plate is set as an inclined surface, and the push rod is reset by the torsion spring.

[0010] According to the above technical solution, the limiting device includes a snap ring, a limiting ring, a locking block, a reset rod, a movable block, a triangular block and a locking plate, the surface of the snap ring is provided with a No. 2 groove, the snap ring is fixedly installed on the inner wall of the shell, the limiting ring is rotatably installed on the surface of the shell, the locking block is slidably installed at the No. 2 groove opened on the surface of the snap ring, one end of the reset rod is fixedly installed on the top of the locking block, the other end of the reset rod is fixedly installed on the top of the No. 2 groove, the movable block is fixedly installed on the surface of the locking block, and the movement of the movable block will drive the locking block to move, the triangular block is fixedly installed on the bottom of the limiting ring, and the locking plate is fixedly installed on the surface of the limiting ring.

[0011] According to the above technical solution, the locking block and the buckle ring are provided with a No. 3 spring, the locking plate telescopic rod is in contact, and the locking block is driven to reset by the No. 3 spring.

[0012] According to the above technical solution, the triangular block is in contact with the movable block, and a number three groove is provided at the bottom of the positioning plate.

[0013] The utility model provides a water testing joint for fire detection, which has the following beneficial effects:

[0014] (1) After the fire protection interface is connected, the interface pushes the sliding block to move, and the movement of the sliding block will push the limit block to move, and the movement of the limit block will push the limit plate to move, and the movement of the limit plate will drive the rubber plug to move, and the movement of the rubber plug will tighten the sealing ring, so that the sealing ring can lock the interface to achieve sealing and ensure the accuracy of the measurement data. During the measurement, as the water pressure continues to increase, the water pressure will push the sealing plate to move, and the movement of the moving plate will drive the telescopic rod to move, and the movement of the telescopic rod will release the limit of the push rod by the hollow tube. After the push rod is unfolded, it will be stuck in the slot of the limit block, and the push rod will continue to push the limit block to move, and the movement of the limit block will push the limit plate to move, and the movement of the limit plate will lock the sealing ring, so that as the water pressure continues to increase, the sealing effect of the sealing ring can be enhanced to prevent the increase in water pressure from causing the sealing effect to deteriorate, thereby further improving the accuracy of the test.

[0015] (2) In the utility model, after docking with the fire interface, the interface pushes the locking block to move. After docking, the locking block is reset by the spring, which realizes quick docking, shortens the installation time and improves work efficiency. After the measurement is completed, by rotating the limit ring, the limit ring will drive the triangular block to move, and the movement of the triangular block will be stuck in the movable block to drive the movable block to move, and the movement of the movable block will drive the locking block to move, thereby releasing the limit of the locking block on the interface, saving disassembly time and further improving work efficiency. When there is water pressure in the air pipe, the water pressure will push the sealing plate to move, and the movement of the sealing plate will drive the telescopic rod to move. The movement of the telescopic rod will be stuck in the groove at the bottom of the locking plate, making the limit ring unable to rotate, so that it cannot be disassembled when there is water pressure in the water pipe, improving the safety of the staff's operation and reducing the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the position relationship between the pressure gauge and the pipeline of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sealing device of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing device of the utility model;

[0020] Figure 5 This is a schematic diagram of the position relationship between the buckle ring and the limit ring of the utility model;

[0021] Figure 6 For this utility model Figure 5 A schematic diagram of the structure of part B in the middle is enlarged;

[0022] Figure 7 This is a schematic diagram of the structure of the limit device of the utility model;

[0023] Figure 8 For this utility model Figure 7 A schematic diagram of the enlarged structure of part A.

[0024] In the figure: 1. shell; 2. nozzle; 3. switch valve; 4. pressure gauge; 5. pipeline; 61. sliding block; 62. limit block; 63. limit plate; 64. rubber plug; 65. sealing ring; 66. hollow tube; 67. sealing plate; 68. telescopic rod; 69. push rod; 610. cover; 71. snap ring; 72. limit ring; 73. blocking block; 74. reset rod; 75. movable block; 76. triangular block; 77. blocking plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 One embodiment of the utility model is a water test joint for fire detection, comprising a shell 1, a nozzle 2 is fixedly installed on the surface of the shell 1, a switch valve 3 is fixedly installed on the surface of the nozzle 2, a pressure gauge 4 is passed through and fixedly installed on the surface of the shell 1, a pipe 5 is fixedly installed on the surface of the nozzle 2, the pressure gauge 4 is fixedly installed on the surface of the pipe 5, a groove is opened on the surface of the pipe 5, and a sealing device and a limit device are arranged inside the shell 1;

[0027] The sealing device includes a sliding block 61, a limiting block 62, a limiting plate 63, a rubber plug 64, a sealing ring 65, a hollow tube 66, a sealing plate 67, a telescopic rod 68 and a push rod 69. The sliding block 61 is slidably installed in a groove set on the surface of the pipe 5, the limiting block 62 is slidably installed on the top of the sliding block 61, one end of the sealing ring 65 is fixedly installed on the surface of the pipe 5, the rubber plug 64 penetrates and is slidably installed on the surface of the sealing ring 65, the limiting plate 63 is fixedly installed on the surface of the rubber plug 64, the hollow tube 66 penetrates and is fixed on the surface of the pipe 5, the sealing plate 67 is slidably installed on the inner wall of the hollow tube 66, the fixed end of the telescopic rod 68 is fixedly installed on the top of the sealing plate 67, the push rod 69 is rotatably installed on the surface of the telescopic rod 68, and the cover 610 is fixedly installed on the inner wall of the hollow tube 66, which can enhance the sealing effect of the sealing ring and prevent the water pressure from increasing and causing the sealing effect to deteriorate, thereby further improving the accuracy of the test.

[0028] A first spring is arranged between the sliding block 61 and the pipe 5, and a second spring is arranged between the sealing plate 67 and the cover 610. The first spring drives the sliding block 61 to reset, and the second spring drives the sealing plate 67 to reset.

[0029] A torsion spring is provided between the push rod 69 and the telescopic rod 68, the limit block 62 is in contact with the limit plate 63, and the contact surface of the limit block 62 and the limit plate 63 is set as an inclined surface, and the push rod 69 is driven to reset by the torsion spring.

[0030] When this embodiment is working: align the shell 1 with the fire interface, push the shell 1 toward the fire interface, the movement of the shell 1 will drive the pipe 5 to move, the movement of the pipe 5 will contact the fire interface, the fire interface will push the sliding block 61 to move toward the inside of the pipe 5, the movement of the sliding block 61 will push the limit block 62 to move toward the shell 1, the movement of the limit block 62 will drive the limit plate 63 to move, the movement of the limit plate 63 will drive the rubber plug 64 to move, the movement of the rubber plug 64 will drive one end of the sealing ring 65 to move toward the other end of the sealing ring 65, so that the interface between the fire interface and the pipe 5 is sealed to ensure the accuracy of the measured data. When measuring, as the water pressure increases, the sealing plate 67 will be pushed to move toward the direction of the shell 1, and the seal will be The movement of the sealing plate 67 will drive the telescopic rod 68 to move, and the movement of the telescopic rod 68 will drive the push rod 69 to move. As the push rod 69 moves, the limit of the hollow tube 66 on the push rod 69 will be gradually released. After the hollow tube 66 releases the limit of the push rod 69, the push rod 69 will be reset by the torsion spring. After the push rod 69 is reset, it will be stuck in the slot of the limit block 62. The movement of the push rod 69 will drive the limit block 62 to move. The movement of the limit block 62 will drive the limit plate 63 to move. The movement of the limit plate 63 will drive the rubber plug 64 to move. The movement of the rubber plug 64 will drive one end of the sealing ring 65 to move toward the other end of the sealing ring 65, so that the sealing effect of the sealing ring 65 is enhanced, and the water pressure is prevented from increasing and the sealing effect is deteriorated, thereby further improving the accuracy of the test.

[0031] See also Figure 1-8The locking plate 77 is fixedly mounted on the surface of the limiting ring 72, so that the locking plate 77 cannot be disassembled when there is water pressure in the water pipe, thereby improving the safety of the operation of the staff and reducing the occurrence of accidents.

[0032] The locking block 73 and the buckle ring 71 are provided with a No. 3 spring, and the locking plate 77 contacts the telescopic rod 68, and the locking block 73 is driven to reset by the No. 3 spring.

[0033] The triangular block 76 contacts the movable block 75 , and a number three groove is formed at the bottom of the locking plate 77 .

[0034] When the present embodiment is working, align the outer shell 1 with the fire interface, push the outer shell 1 toward the fire interface, the fire interface will contact the positioning block 73, and the fire interface will push the positioning block 73 to move toward the limiting ring 72. After the fire interface stops contacting the positioning block 73, the positioning block 73 will be reset by the No. 3 spring to clamp the fire interface, shorten the installation time, and improve work efficiency. After the measurement is completed, rotate the limiting ring 72, and the rotation of the limiting ring 72 will drive the triangular block 76 to move. The movement of the triangular block 76 will be stuck in the groove on the surface of the movable block 75, and the movement of the triangular block 76 will drive the movable block 75 to the limiting ring The movement of movable block 75 will drive the positioning block 73 to move, and the movement of positioning block 73 will release the limit on the fire interface, saving disassembly time and further improving work efficiency. When there is still water pressure in the pipe 5, the water pressure will push the sealing plate 67 to move in the direction of the outer shell 1, and the movement of the sealing plate 67 will drive the telescopic rod 68 to move. The movement of the telescopic rod 68 will be stuck in the No. 3 groove set at the bottom of the positioning plate 77 to limit the limiting ring 72, so that it cannot be disassembled when there is water pressure in the water pipe, thereby improving the safety of the staff's operation and reducing the occurrence of accidents.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water test joint for fire detection, comprising a housing (1), characterized in that: A nozzle (2) is fixedly mounted on the surface of the housing (1), a switch valve (3) is fixedly mounted on the surface of the nozzle (2), a pressure gauge (4) is passed through and fixedly mounted on the surface of the housing (1), a pipe (5) is fixedly mounted on the surface of the nozzle (2), the pressure gauge (4) is fixedly mounted on the surface of the pipe (5), a groove is provided on the surface of the pipe (5), and a sealing device and a limit device are provided inside the housing (1); The sealing device comprises a sliding block (61), a limiting block (62), a limiting plate (63), a rubber plug (64), a sealing ring (65), a hollow tube (66), a sealing plate (67), a telescopic rod (68), a sealing cover (610) and a push rod (69), wherein the sliding block (61) is slidably mounted in a groove provided on the surface of the pipe (5), the limiting block (62) is slidably mounted on the top of the sliding block (61), one end of the sealing ring (65) is fixedly mounted on the surface of the pipe (5), and the rubber plug (6 4) penetrates and is slidably mounted on the surface of the sealing ring (65), the limiting plate (63) is fixedly mounted on the surface of the rubber plug (64), the hollow tube (66) penetrates and is fixed on the surface of the pipe (5), the sealing plate (67) is slidably mounted on the inner wall of the hollow tube (66), the fixed end of the telescopic rod (68) is fixedly mounted on the top of the sealing plate (67), the push rod (69) is rotatably mounted on the surface of the telescopic rod (68), and the sealing cover (610) is fixedly mounted on the inner wall of the hollow tube (66).

2. A water test joint for fire detection according to claim 1, characterized in that: A No. 1 spring is provided between the sliding block (61) and the pipe (5), and a No. 2 spring is provided between the sealing plate (67) and the sealing cover (610).

3. A water testing joint for fire detection according to claim 2, characterized in that: A torsion spring is provided between the push rod (69) and the telescopic rod (68), the limit block (62) is in contact with the limit plate (63), and a surface of the limit block (62) in contact with the limit plate (63) is provided as an inclined surface.

4. A water testing joint for fire detection according to claim 3, characterized in that: The limiting device comprises a snap ring (71), a limiting ring (72), a locking block (73), a reset rod (74), a movable block (75), a triangular block (76) and a locking plate (77); a second groove is provided on the surface of the snap ring (71); the snap ring (71) is fixedly mounted on the inner wall of the housing (1); the limiting ring (72) is rotatably mounted on the surface of the housing (1); the locking block (73) is slidably mounted on the second groove provided on the surface of the snap ring (71); one end of the reset rod (74) is fixedly mounted on the top of the locking block (73); the other end of the reset rod (74) is fixedly mounted on the top of the second groove; the movable block (75) is fixedly mounted on the surface of the locking block (73); the triangular block (76) is fixedly mounted on the bottom of the limiting ring (72); and the locking plate (77) is fixedly mounted on the surface of the limiting ring (72).

5. A water testing joint for fire detection according to claim 4, characterized in that: The locking block (73) and the buckle ring (71) are provided with a No. 3 spring, and the locking plate (77) is in contact with the telescopic rod (68).

6. A water testing joint for fire detection according to claim 5, characterized in that: The triangular block (76) contacts the movable block (75), and a number three groove is formed at the bottom of the locking plate (77).

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