CN117074202A - A pressure test device for indoor fire hydrants - Google Patents

Abstract

The invention relates to the field of testing of fire hydrants, and in particular to a pressure test device for indoor fire hydrants. By more fully pressurizing each interface of the fire hydrant, the present invention can more comprehensively and fully detect the pressure resistance of each interface of the fire hydrant, making the pressure resistance detection effect of the fire hydrant better. The invention includes a support tube, a support bent rod, a motor, etc.; the support bent rod is fixedly connected to the upper part of the support tube close to the guide rod, and the motor is fixedly connected to the end of the support bent rod away from the support tube. The invention squeezes the water in the support tube through the piston push plate to increase the water pressure inside the fire hydrant. At the same time, the movement of the opening baffle will squeeze the clean water between the interface of the fire hydrant and the support pipe, increasing the connection between the interface of the fire hydrant and the support pipe. The water pressure between the support pipes is used to test the pressure resistance of the fire hydrants.

Description

A pressure test device for indoor fire hydrants

Technical field

The invention relates to the field of testing of fire hydrants, and in particular to a pressure test device for indoor fire hydrants.

Background technique

Fire hydrant, officially called fire hydrant, is a fixed fire-fighting facility. Its main function is to control combustibles, isolate combustion-supporting materials, and eliminate sources of ignition. Fire hydrants are mainly divided into indoor fire hydrants and outdoor fire hydrants. Indoor fire hydrants are generally placed in public shared spaces such as corridors or halls. They are mainly used by fire trucks to draw water from the municipal water supply network to put out fires. They can also be directly connected to water hoses and water guns to extinguish fires. Fire hydrant is one of the important fire-fighting equipment for putting out fires, and the pressure resistance standard of fire hydrant is directly related to the safety of fire-fighting equipment, which is crucial for both the manufacturer and the user department. Therefore, when producing fire hydrants, The pressure resistance of fire hydrants needs to be tested.

At present, the pressure test of fire hydrants usually uses the hydraulic test method, that is, the water pressure in the fire hydrant is pressurized to a certain pressure, and after a period of time, the fire hydrant is observed to see whether there are leaks, cracks, etc. When some testing equipment in the prior art tests the pressure resistance of a fire hydrant, it generally pressurizes the inside of the fire hydrant and then measures the water pressure of the fire hydrant after maintaining it for a period of time to evaluate the pressure resistance of the fire hydrant. However, this cannot effectively pressurize each interface of the fire hydrant. At the same time, because the water pressure of each interface of the fire hydrant is not consistent, the pressure resistance standards are also different, and the water pressure inside the fire hydrant was consistent during the test. , so it is inconvenient to fully conduct a pressure test on the interface of the fire hydrant, resulting in poor pressure test results.

Contents of the invention

In order to solve the above technical problems, the present invention provides an indoor fire hydrant pressure test device, which can more comprehensively and fully detect the pressure resistance of each interface of the fire hydrant by more fully pressurizing the interfaces of the fire hydrant. The pressure resistance of the fire hydrant makes the pressure resistance testing effect of the fire hydrant better.

The technical embodiment of the present invention is: a pressure test device for indoor fire hydrants, including a support tube, a support bent rod, a motor, a rotating cap, a sealing and pressurizing mechanism and a nozzle pressurizing mechanism. The top of the support tube is provided with There is a water inlet pipe, one end is provided with two guide rods, and the bottom of the other end is provided with a support frame. A fire hydrant is clipped on the side of the support pipe away from the guide rods, and the support pipe is connected to the water inlet of the fire hydrant. , the support curved rod is fixedly connected to the upper part of the side of the support pipe close to the guide rod, the motor is fixedly connected to the end of the support curved rod away from the support pipe, the rotating cap covers the water inlet pipe of the support pipe, and the seal The pressurizing mechanism is located on the support tube. The sealing and pressurizing mechanism is used to pressurize and test the inside of the fire hydrant. The nozzle pressurizing mechanism is located on the sealing and pressurizing mechanism. The nozzle pressurizing mechanism is used for pressurizing the fire hydrant. For pressurization testing of fire hydrant interfaces.

Further, the sealing and pressurizing mechanism includes a threaded push plate frame, a screw rod, a piston push plate and a support spring. A threaded push plate frame is slidably connected between the two guide rods of the support tube, and the screw rod is fixed. Connected to the output shaft of the motor, the screw is connected to the threaded push plate frame through threads, the piston push plate is slidingly connected to the inner wall of the support tube, the piston push plate is slidingly connected to the threaded push plate frame, so There are two supporting springs connected between the piston push plate and the threaded push plate frame.

Further, the nozzle pressurizing mechanism includes a support rod, an opening baffle, a water blocking plate, a compression spring, a rack push rod, a fixed rod, a transmission gear and a rack rod, and the support rod is slidingly connected. At the lower part of the piston push plate, the support pull rod passes through the support tube. There are two bumps on the support pull rod. A part of the support pull rod is located in the fire hydrant. The opening baffle is slidingly connected to the support pull rod. On the top, the two bumps of the support pull rod are located on the side of the opening baffle close to the motor. There is a round hole on the opening baffle, and the water blocking plate is slidingly connected to the side of the support pull rod away from the motor. On the side, the round holes of the water blocking plate and the opening baffle are located on the same horizontal line, the opening baffle and the water blocking plate are located in the fire hydrant, and the opening baffle is in contact with the inner wall of the fire hydrant, so A compression spring is connected between the water blocking plate and the support pull rod. The rack push rod is fixedly connected at the middle position of the bottom of the thread push plate frame. The rack push rod meshes with the transmission gear. The fixed rod is fixedly connected. At the lower part of the side of the support tube close to the guide rod, the transmission gear is rotatably connected to the middle position of the fixed rod, and the rack pull rod is fixedly connected to the top of the support pull rod near the motor. The transmission gear and the rack pull rod Engagement.

Furthermore, it also includes an extrusion mechanism, which is provided on the support pull rod. The extrusion mechanism includes a curved groove plate, a sliding slope block, a round top rod, a threaded support rod, a pressure spring and an extrusion rod. Press the ejector rod, the bottom of the support pull rod close to the motor is fixedly connected with two curved groove plates, and the side of the two curved groove plates away from the rack pull rod is slidingly connected with a sliding slope block, so The sliding slope block is slidingly connected to the support frame of the support tube. The sliding slope block is provided with a slope. The dome top rod is slidingly connected to the lower part of the support frame of the support pipe. The connection between the dome head rod and the sliding slope block is Inclined contact, the threaded support rod is slidingly connected to the dome top rod, two pressure springs are connected between the dome top rod and the threaded support rod, the extrusion push rod is connected to the threaded support rod through threads, One end of the squeeze push rod away from the dome push rod is in contact with the lower outer wall of the fire hydrant.

Furthermore, it also includes a vibration mechanism, which is located on the piston push plate. The vibration mechanism includes a guide support rod, a knocking ejector rod, a return spring, a rotating lever and a lever block. The support rod is fixedly connected to the upper part of the side of the piston push plate close to the motor. The knocking ejector rod is slidingly connected to the guide support rod. The end of the knocking ejector rod away from the motor is in contact with the piston push plate. The guide support A return spring is connected between the rod and the knocking ejector rod. The rotating lever is rotatably connected to the middle position of the supporting bent rod. The rotating lever is slidingly connected to the knocking ejector rod. The rotating block is fixedly connected. On the top of the threaded push plate frame, the shifting block and the lower part of the rotating lever are located on the same horizontal line.

Further, it also includes a dome rod and an extrusion spring. The dome rod is slidingly connected to the sliding slope block. The dome rod is located under the water inlet of the fire hydrant. The dome rod is connected to the sliding slope. A squeeze spring is connected between the blocks.

Furthermore, it also includes a support ring plate, an extrusion splint and a bolt rotating rod. The support ring plate is slidingly connected to the side of the support pipe away from the support bent rod. The fire hydrant passes through the support ring plate. The support ring There are two extrusion splints slidingly connected on the board. The two extrusion splints are arranged symmetrically. The end of the fire hydrant close to the water inlet is located between the two extrusion splints. The support ring plate is connected through threads. There are two bolt rotating rods, the two bolt rotating rods are arranged symmetrically, and the bolt rotating rods are rotatably connected to the extrusion splint.

Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention first injects clean water into the inside of the fire hydrant through the support pipe, and then the motor drives the screw to rotate, so that the thread push plate frame and the rack push rod move to the side away from the motor. The movement of the threaded push plate frame will cause the two support springs to be compressed. At the same time, the piston push plate will squeeze the water in the support tube under the elastic force of the two support springs, thereby increasing the water pressure inside the fire hydrant, which will affect the fire hydrant. The internal pressure resistance is tested. The movement of the rack push rod will drive the transmission gear to rotate, causing the rack pull rod to move to the side closer to the motor and drive the support pull rod to move, thereby moving the water blocking plate and blocking the opening baffle. round hole, and then push the opening baffle to move and squeeze the clean water between the fire hydrant's interface and the support pipe, thereby increasing the water pressure between the fire hydrant's interface and the support pipe, and affecting the pressure resistance of the fire hydrant interface. By observing whether there is leakage, rupture, etc. at the interface of the fire hydrant, you can check whether the pressure resistance of the fire hydrant is qualified, thereby completing the pressure resistance test of the interior of the fire hydrant and the interface.

2. The present invention drives the two curved groove plates to move by moving the support pull rod to the side close to the motor. The movement of the two curved groove plates will push the sliding slope block to move upward, and then push the dome head rod to move to the side away from the motor. , causing the two pressure springs to be compressed, and at the same time, the threaded support rod will squeeze the ejector rod under the elastic force of the two pressure springs, and then the squeeze ejector rod will squeeze the water outlet of the fire hydrant, affecting the relationship between the fire hydrant and the water gun. Pressurize the interface between the fire hydrant and the water gun to test the pressure resistance of the fire hydrant outlet. By observing whether there is leakage or rupture in the interface between the fire hydrant and the water gun, you can judge whether the pressure resistance of the fire hydrant outlet is qualified. , which can then more comprehensively detect the pressure resistance of each interface of the fire hydrant, making the pressure resistance test results more accurate.

3. The present invention drives the dome rod to move upward by moving the sliding bevel block upward. The upward movement of the dome rod will squeeze the water inlet end of the fire hydrant, thereby fully pressurizing the water outlet end of the fire hydrant, and the threaded push plate frame moves toward the fire hydrant. When the side close to the motor moves, it will drive the dial block to move, causing the return spring to reset and driving the knocking ejector to reset. When the knocking ejector resets, it will knock the piston push plate, thereby vibrating the water in the support tube, and vibrating the fire hydrant. The clean water between the interface and the support pipe is further pressurized to further pressurize the interface between the fire hydrant and the support pipe, and then conduct a more complete pressure test on the water inlet end of the fire hydrant to more fully detect the pressure resistance of the fire hydrant. properties, so that the fire hydrant’s pressure resistance testing effect is better.

Description of the drawings

Figure 1 is a schematic diagram of the first three-dimensional structure of the present invention.

Figure 2 is a schematic diagram of the second three-dimensional structure of the present invention.

Figure 3 is a partial three-dimensional structural diagram of the sealing and pressurizing mechanism, extrusion mechanism and vibration mechanism of the present invention.

Figure 4 is a schematic three-dimensional structural diagram of the support tube of the present invention.

Figure 5 is a partially cut-away three-dimensional structural schematic diagram of the present invention.

Figure 6 is a first partially cutaway three-dimensional structural schematic diagram of the sealing and pressurizing mechanism, the nozzle pressurizing mechanism and the vibration mechanism of the present invention.

Figure 7 is a schematic three-dimensional structural diagram of the piston push plate and the supporting pull rod of the present invention.

Figure 8 is a second partially cutaway three-dimensional structural schematic diagram of the sealing and pressurizing mechanism, the nozzle pressurizing mechanism and the vibration mechanism of the present invention.

Figure 9 is a partial three-dimensional structural diagram of the nozzle pressure mechanism, extrusion mechanism and vibration mechanism of the present invention.

Figure 10 is an enlarged three-dimensional structural diagram of A in Figure 9 of the present invention.

Figure 11 is a partially disassembled three-dimensional structural diagram of the extrusion mechanism of the present invention.

Figure 12 is a partial three-dimensional structural diagram of the nozzle pressure mechanism and extrusion mechanism of the present invention.

Figure 13 is a partial three-dimensional structural diagram of the sealing and pressurizing mechanism and vibration mechanism of the present invention.

In the picture: 1. Support pipe, 1001. Fire hydrant, 2. Support bent rod, 3. Motor, 4. Rotating cap, 51. Threaded push plate frame, 52. Screw, 53. Piston push plate, 54. Support spring , 61. Support rod, 62. Opening baffle, 63. Water blocking plate, 64. Compression spring, 65. Rack push rod, 651. Fixed rod, 66. Transmission gear, 67. Rack rod, 71. Bend Groove plate, 72. Sliding bevel block, 73. Round ejector rod, 74. Threaded support rod, 75. Pressure spring, 76. Extrusion ejector rod, 81. Guide support rod, 82. Percussion ejector rod, 83. Return Position spring, 84. Rotating lever, 85. Driving block, 91. Dome rod, 92. Extrusion spring, 101. Support ring plate, 102. Extrusion splint, 103. Bolt rotating rod.

Detailed ways

The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part are all mature bolts, rivets, welding, etc. in the prior art. Conventional methods such as pasting will not be described in detail here.

Embodiment 1: A pressure test device for indoor fire hydrants, as shown in Figures 1 to 8, including a support tube 1, a support bent rod 2, a motor 3, a rotating cap 4, a sealing and pressurizing mechanism and a nozzle pressure increaser. Pressure mechanism, the top of the support pipe 1 is provided with a water inlet pipe, one end is provided with two guide rods, and the bottom of the other end is provided with a support frame, the two guide rods of the support pipe 1 are set horizontally, the support pipe 1. A fire hydrant 1001 is connected to the side away from the guide rod, and the support pipe 1 is connected with the water inlet of the fire hydrant 1001. The support curved rod 2 is connected to the upper part of the support pipe 1 close to the guide rod through bolts. The support bent rod 2 is an "L" shaped structure. The motor 3 is connected to one end of the support bent rod 2 away from the support pipe 1 through bolts. The rotating cap 4 covers the water inlet pipe of the support pipe 1. The cap 4 is used to close the water inlet pipe of the support pipe 1. The sealing and pressurizing mechanism is provided on the support pipe 1. The sealing and pressurizing mechanism is used to perform a pressurization test on the inside of the fire hydrant 1001. The pipe mouth is pressurized. The mechanism is located on a sealing and pressurizing mechanism, and the nozzle pressurizing mechanism is used to perform a pressurization test on the interface of the fire hydrant 1001.

The sealing and pressurizing mechanism includes a threaded push plate frame 51, a screw rod 52, a piston push plate 53 and a support spring 54. A threaded push plate frame 51 is slidingly connected between the two guide rods of the support tube 1. The two guide rods of the support tube 1 have a guiding effect on the threaded push plate frame 51. The screw rod 52 is connected to the output shaft of the motor 3 through bolts. The screw rod 52 is set horizontally. The screw rod 52 is connected with the threaded push plate frame. 51 is connected through threads. The piston push plate 53 is slidingly connected to the inner wall of the support tube 1. The piston push plate 53 is slidingly connected to the threaded push plate frame 51. The piston push plate 53 is used to push the support tube 1 The water in the piston push plate 53 is pressurized. There are two support springs 54 connected between the piston push plate 53 and the threaded push plate frame 51 . Both of the two support springs 54 are sleeved on the piston push plate 53 .

The nozzle pressurizing mechanism includes a support rod 61, an opening baffle 62, a water blocking plate 63, a compression spring 64, a rack push rod 65, a fixed rod 651, a transmission gear 66 and a rack rod 67. The pull rod 61 is slidingly connected to the lower part of the piston push plate 53. The support pull rod 61 passes through the support tube 1. There are two bumps on the support pull rod 61. A part of the support pull rod 61 is located in the fire hydrant 1001. The opening baffle 62 is slidingly connected to the support rod 61. The two bumps of the support rod 61 are located on the side of the opening baffle 62 close to the motor 3. There are round holes on the opening baffle 62. hole. The opening baffle 62 is used to pressurize the interface between the fire hydrant 1001 and the support pipe 1. The water blocking plate 63 is slidingly connected to the side of the support rod 61 away from the motor 3. The water plate 63 and the round hole of the opening baffle 62 are located on the same horizontal line. The water blocking plate 63 is used to block the round hole of the opening baffle 62. The opening baffle 62 and the water blocking plate 63 are located on the fire In the hydrant 1001, and the opening baffle 62 is in contact with the inner wall of the fire hydrant 1001, a compression spring 64 is connected between the water blocking plate 63 and the support rod 61, and the compression spring 64 is sleeved on the water blocking plate 63 , the rack push rod 65 is connected to the middle position of the bottom of the threaded push plate frame 51 through bolts, the rack push rod 65 will mesh with the transmission gear 66, and the fixed rod 651 is connected to the support tube 1 near the guide through rivets. At the lower part of one side of the rod, the transmission gear 66 is rotatably connected to the middle position of the fixed rod 651. The rack pull rod 67 is connected to the top of the support pull rod 61 near the motor 3 through bolts. The transmission gear 66 is located on the gear Above the rack pull rod 67 , the transmission gear 66 meshes with the rack pull rod 67 .

In actual operation, the staff first clamped one end of the water inlet of the fire hydrant 1001 to the side of the support pipe 1 away from the guide rod to simulate the situation of the fire hydrant 1001 being connected to the water pipe. At this time, the fire hydrant 1001 is in a closed state and open. The hole baffle 62 and the water blocking plate 63 are both located in the fire hydrant 1001. Then the staff opens the rotating cap 4 and adds clean water into the support pipe 1 through the water inlet pipe. Since the piston push plate 53 blocks one side of the support pipe 1, Therefore, the water in the support pipe 1 will flow into the inside of the fire hydrant 1001 through the round hole of the opening baffle 62. When the inside of the fire hydrant 1001 is filled with clean water, the staff will plug the rotating cap 4 back into the water inlet pipe of the support pipe 1. on the support pipe 1, seal the support pipe 1 to avoid the backflow of water in the support pipe 1, and then the staff starts the motor 3. The rotation of the output shaft of the motor 3 will drive the screw 52 to rotate, and the rotation of the screw 52 will drive the threaded push plate frame 51 and the rack. The push rod 65 moves together to the side away from the motor 3. Since the inside of the fire hydrant 1001 and the support pipe 1 are filled with water, the piston push plate 53 will hardly move, and the movement of the threaded push plate frame 51 will cause the two supports to The spring 54 is compressed, and at the same time, the piston push plate 53 will squeeze the water in the support tube 1 under the elastic force of the two support springs 54, thereby increasing the water pressure inside the fire hydrant 1001 and affecting the pressure resistance inside the fire hydrant 1001. During the test, the staff will check whether the fire hydrant 1001 has qualified pressure resistance by observing whether there is water leakage, rupture, etc. The rack push rod 65 will mesh with the transmission gear 66 as it continues to move, and drive the transmission gear 66 to rotate. The rotation of the transmission gear 66 will drive the rack pull rod 67 to move to the side close to the motor 3. The movement of the rack pull rod 67 will drive the support pull rod 61 to move. The movement of the support pull rod 61 will drive the water blocking plate 63 to move through the compression spring 64. The water blocking plate The movement of 63 will contact the opening baffle 62 and block the round hole of the opening baffle 62. At this time, the clean water in the support pipe 1 no longer flows into the fire hydrant 1001, and the water blocking plate 63 continues to move closer to the motor 3. One side movement will push the opening baffle 62 to move. At the same time, under the action of the water pressure in the support pipe 1, the compression spring 64 will be compressed. The movement of the opening baffle 62 will squeeze the interface between the fire hydrant 1001 and the support pipe 1. clean water in the space, thereby increasing the water pressure between the interface of fire hydrant 1001 and the support pipe 1, and testing the pressure resistance of the interface of fire hydrant 1001. The staff observed whether there is leakage or rupture at the interface of fire hydrant 1001 etc., check whether the pressure resistance of the fire hydrant 1001 is qualified. After the pressure resistance test of the fire hydrant 1001 is completed, the reverse rotation of the output shaft of the motor 3 will drive the screw 52 to reverse, and the reverse rotation of the screw 52 will drive the threaded push plate frame. 51 and the rack push rod 65 are reset to the side close to the motor 3. When the thread push plate frame 51 is reset, the two support springs 54 will no longer be squeezed. The two support springs 54 will be reset, and the rack push rod 65 will be reset. The transmission gear 66 is first driven to reverse, and then disengaged from the transmission gear 66. The reverse rotation of the transmission gear 66 will drive the rack pull rod 67 to reset to the side away from the motor 3. The reset of the rack pull rod 67 will drive the support pull rod 61 to reset, and the support pull rod 61 will be reset. When 61 is reset, the compression spring 64 will no longer be squeezed. The compression spring 64 will reset first, and then the support rod 61 will drive the water blocking plate 63 to reset through the compression spring 64. The water blocking plate 63 will be out of contact with the opening baffle 62 when it is reset. When the support rod 61 is reset, the two bumps will come into contact with the opening baffle 62 and push the opening baffle 62 to move to the side away from the motor 3. Then the staff will remove the tested fire hydrant 1001 from the support pipe 1 Remove it to complete the pressure resistance test of the interior and interface of the fire hydrant 1001.

Embodiment 2: On the basis of Embodiment 1, as shown in Figures 1 to 12, an extrusion mechanism is also included. The extrusion mechanism is provided on the support pull rod 61. The extrusion mechanism is used for fire protection. One end of the water inlet of the bolt 1001 is pressurized. The extrusion mechanism includes a curved groove plate 71, a sliding slope block 72, a round top rod 73, a threaded support rod 74, a pressure spring 75 and an extrusion push rod 76. The bottom of the support rod 61 close to the motor 3 is connected with two curved groove plates 71 through rivets. The two curved groove plates 71 are provided with guide grooves on the side away from the rack rod 67. The two curved groove plates 71 are provided with guide grooves. A sliding bevel block 72 is slidingly connected between the guide grooves of the shaped groove plate 71. The sliding bevel block 72 is slidingly connected to the support frame of the support tube 1. The sliding bevel block 72 is provided with a bevel, and the dome head The rod 73 is slidingly connected to the lower part of the support frame of the support tube 1. The dome top rod 73 is in contact with the slope of the sliding slope block 72. The threaded support rod 74 is slidingly connected to the dome top rod 73. The dome top rod 73 There are two pressure springs 75 connected between 73 and the threaded support rod 74. The two pressure springs 75 are sleeved on the threaded support rod 74. The extrusion push rod 76 is connected to the threaded support rod 74 through threads, so The end of the extrusion ejector pin 76 away from the round top pin 73 is in contact with the lower outer wall of the fire hydrant 1001. The extrusion ejector pin 76 is used to squeeze one end of the water inlet of the fire hydrant 1001.

Initially, when one end of the water inlet of the fire hydrant 1001 is clamped to the support pipe 1, the squeeze push rod 76 will contact one end of the water outlet of the fire hydrant 1001, and then the staff connects the peripheral water gun to the water outlet of the fire hydrant 1001. , when the support pull rod 61 moves to the side close to the motor 3, it will drive the two curved groove plates 71 to move together. The movement of the two curved groove plates 71 will push the sliding slope block 72 to move upward, and the upward movement of the sliding slope block 72 will The dome top rod 73 is pushed to move to the side away from the motor 3 through the inclined surface. The movement of the dome top rod 73 will cause the two pressure springs 75 to be compressed. At the same time, the threaded support rod 74 will be squeezed under the elastic force of the two pressure springs 75. Press the ejector rod 76, and then press the ejector rod 76 to squeeze one end of the water outlet of the fire hydrant 1001, pressurize the interface between the fire hydrant 1001 and the water gun, and test the pressure resistance of the water outlet of the fire hydrant 1001. The staff By observing whether the interface between the fire hydrant 1001 and the water gun is leaking, ruptured, etc., it is possible to detect whether the pressure resistance of the water outlet of the fire hydrant 1001 is qualified, and then the pressure resistance of each interface of the fire hydrant 1001 can be more comprehensively tested. To make the detection results more accurate, for different types of fire hydrants 1001, the staff can rotate the extrusion ejector 76 so that the extrusion ejector 76 moves left and right and contacts one end of the water outlet of the fire hydrant 1001, so as to detect different types of fire hydrants 1001. Bolt 1001 is tested for pressure resistance. When the support rod 61 is reset to the side away from the motor 3, it will drive the two curved groove plates 71 to reset together. The reset of the two curved groove plates 71 will push the sliding slope block 72 to reset downward. , the downward reset of the sliding bevel block 72 will no longer push the dome top rod 73. The reset of the two pressure springs 75 will drive the dome top rod 73 to reset. The reset of the dome top rod 73 will no longer squeeze the threaded support rod 74 and the squeeze push rod. 76.

Embodiment 3: On the basis of Embodiment 2, as shown in Figures 1 to 13, a vibration mechanism is also included. The vibration mechanism is provided on the piston push plate 53. The vibration mechanism includes a guide support rod 81. , knocking ejector rod 82, return spring 83, rotating lever 84 and dialing block 85. The guide support rod 81 is connected to the upper part of the piston push plate 53 near the motor 3 through bolts. The knocking ejector rod 82 Slidingly connected to the guide support rod 81, the knocking ejector pin 82 is set horizontally, the end of the knocking ejector pin 82 away from the motor 3 is in contact with the piston push plate 53, and the knocking ejector pin 82 is used for knocking. The piston push plate 53 has a short slot on the side of the knocking ejector rod 82 away from the piston push plate 53. A return spring 83 is connected between the guide support rod 81 and the knocking ejector rod 82. The spring 83 is placed on the knocking ejector rod 82, and the rotating lever 84 is rotatably connected to the middle position of the supporting bending rod 2. The rotating lever 84 is provided with a short rod, and the short lever of the rotating lever 84 is Slidingly connected to the short slot of the knocking ejector rod 82, the dialing block 85 is connected to the top of the threaded push plate frame 51 through bolts, and the dialing block 85 is located on the same horizontal line as the lower part of the rotating dialing rod 84.

Initially, one end of the striking ejector rod 82 is in contact with one side of the piston push plate 53. When the threaded push plate frame 51 moves to the side away from the motor 3, it will drive the dial block 85 to move. The movement of the dial block 85 will coincide with the rotation of the dial lever 84. Contact, and push the rotating lever 84 to swing. The swing of the rotating lever 84 will pull the knocking ejector pin 82 to move to the side closer to the motor 3. The return spring 83 is stretched, and the movement of the knocking ejector pin 82 will interact with the piston push plate. 53 is out of contact. When the threaded push plate frame 51 is reset to the side close to the motor 3, it will drive the dial block 85 to reset. The movement of the dial block 85 will disengage from the rotating lever 84, and the return spring 83 will drive the knocker to reset. Knock the ejector rod 82 to reset. Knocking the ejector rod 82 to reset will re-contact with one side of the piston push plate 53, and knock the piston push plate 53, thereby vibrating the water in the support tube 1. When knocking the ejector rod 82 to reset, it will Push the rotating lever 84 to reset, and by vibrating the clean water between the interface of the fire hydrant 1001 and the support pipe 1, the interface between the fire hydrant 1001 and the support pipe 1 is further pressurized, and then the water inlet end of the fire hydrant 1001 is More fully perform the pressure resistance test and more fully detect the pressure resistance of the fire hydrant 1001, so that the pressure resistance testing effect of the fire hydrant 1001 will be better.

Embodiment 4: On the basis of Embodiment 3, as shown in Figures 3 to 12, it also includes a dome rod 91 and a squeeze spring 92. The dome rod 91 is slidingly connected to the sliding slope block 72. , the dome rod 91 is arranged vertically, the dome rod 91 is located below the water inlet of the fire hydrant 1001, the dome rod 91 is used to squeeze the fire hydrant 1001, the dome rod 91 is connected with the sliding slope An extrusion spring 92 is connected between the blocks 72 , and the extrusion spring 92 is sleeved on the dome rod 91 .

When the sliding bevel block 72 moves upward, it will drive the dome rod 91 to move upward by squeezing the spring 92. When the dome rod 91 moves upward, it will contact the water inlet end of the fire hydrant 1001 and squeeze the water inlet end of the fire hydrant 1001. Then, fully pressurize the water outlet end of the fire hydrant 1001. At the same time, the fire hydrant 1001 will resist the dome pole 91, so that the squeeze spring 92 is compressed. By observing whether the interface between the fire hydrant 1001 and the water gun is leaking or ruptured, In other cases, the pressure resistance of the fire hydrant 1001 interface can be more effectively detected, thereby more effectively improving the accuracy of the pressure resistance test results of the fire hydrant 1001; the sliding slope block 72 will no longer be squeezed when it is reset downwards. The spring 92 will be reset first by squeezing the spring 92, and then the sliding slope block 72 will drive the dome rod 91 to reset downward by squeezing the spring 92. The dome rod 91 will be out of contact with the fire hydrant 1001 when it is reset downward.

Embodiment 5: On the basis of Embodiment 4, as shown in Figures 1 to 12, it also includes a support ring plate 101, an extrusion clamping plate 102 and a bolt rotating rod 103. The support ring plate 101 is slidably connected to The support pipe 1 is on the side away from the support bent rod 2. The support ring plate 101 is provided with an annular structure. The fire hydrant 1001 passes through the annular structure of the support ring plate 101. The annular structure of the support ring plate 101 is slidably connected. There are two extrusion splints 102. The two extrusion splints 102 are arranged symmetrically. The end of the fire hydrant 1001 close to the water inlet is located between the two extrusion splints 102. The two extrusion splints 102 are used for Extrusion fire hydrant 1001, two bolt rotating rods 103 are threadedly connected to the support ring plate 101, the two bolt rotating rods 103 are arranged symmetrically, and the bolt rotating rod 103 is rotatably connected to the extrusion splint 102 .

Initially, when one end of the water inlet of the fire hydrant 1001 is clamped to the support pipe 1, one end of the water inlet of the fire hydrant 1001 is located between the two extrusion splints 102, and the staff rotates the two bolts and rotating rods 103, so that the two extrusion plates The pressure splints 102 move toward each other and come into contact with one end of the water inlet of the fire hydrant 1001. The two extrusion splints 102 will squeeze one end of the water inlet of the fire hydrant 1001 and pressurize the outside of the fire hydrant 1001. In this way, the external pressure resistance of the fire hydrant 1001 is tested to improve the comprehensiveness of the test. After the test of the fire hydrant 1001 is completed, the staff rotates the two bolt rotating rods 103 in the opposite direction, causing the two extrusion splints 102 to squeeze Fire Hydrant 1001.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A pressure-resistant testing device of an indoor fire hydrant is characterized in that: including stay tube (1), support bent rod (2), motor (3), rotatory lid (4), sealed pressurizing mechanism and mouth of pipe pressurizing mechanism, stay tube (1) top is equipped with the inlet tube, and one end is equipped with two guide arms, and the bottom of the other end is equipped with the support frame, one side joint that the guide arm was kept away from to stay tube (1) has fire hydrant (1001), just the water inlet intercommunication of stay tube (1) and fire hydrant (1001), support bent rod (2) fixed connection is near the upper portion of guide arm one side in stay tube (1), one end that stay tube (1) was kept away from in motor (3) fixed connection is in support bent rod (2), rotatory lid (4) lid is on the inlet tube of stay tube (1), sealed pressurizing mechanism is established on stay tube (1), sealed pressurizing mechanism is used for carrying out the pressurization test to the inside of fire hydrant (1001), mouth of pipe pressurizing mechanism is established on sealed pressurizing mechanism, mouth of pipe pressurizing mechanism is used for carrying out the pressurization test to the interface of fire hydrant (1001).

2. The pressure resistance test device for an indoor hydrant according to claim 1, wherein: the sealing pressurizing mechanism comprises a threaded pushing plate frame (51), a screw rod (52), a piston pushing plate (53) and a supporting spring (54), wherein the threaded pushing plate frame (51) is connected between two guide rods of the supporting tube (1) in a sliding mode, the screw rod (52) is fixedly connected to an output shaft of the motor (3), the screw rod (52) is connected with the threaded pushing plate frame (51) through threads, the piston pushing plate (53) is connected to the inner wall of the supporting tube (1) in a sliding mode, the piston pushing plate (53) is connected with the threaded pushing plate frame (51) in a sliding mode, and two supporting springs (54) are connected between the piston pushing plate (53) and the threaded pushing plate frame (51).

3. The pressure resistance test device for an indoor hydrant according to claim 2, wherein: the pipe orifice pressurizing mechanism comprises a supporting pull rod (61), an opening baffle plate (62), a water shutoff plate (63), a compression spring (64), a rack push rod (65), a fixed rod (651), a transmission gear (66) and a rack pull rod (67), wherein the supporting pull rod (61) is connected to the lower part of a piston push plate (53) in a sliding mode, the supporting pull rod (61) penetrates through a supporting pipe (1), two protruding blocks are arranged on the supporting pull rod (61), a part of the supporting pull rod (61) is located in a fire hydrant (1001), the opening baffle plate (62) is connected to the supporting pull rod (61) in a sliding mode, the two protruding blocks of the supporting pull rod (61) are located on one side, close to a motor (3), of the opening baffle plate (62) are provided with round holes, the water shutoff plate (63) is connected to one side, far away from the motor (3), the round holes of the opening baffle plate (63) and the opening baffle plate (62) are located on the same horizontal line, the opening baffle plate (62) and the water shutoff plate (1001) are located in the supporting pull rod (61) and are connected to the fire hydrant (1001) in a contact mode, the compression baffle plate (64) is located between the inner wall (1001), the utility model discloses a rack push rod, including screw thread push rod frame (51), rack push rod (65), dead lever (651), gear (67) and rack pull rod (67) are fixed connection, rack push rod (65) fixed connection is in the intermediate position of screw thread push rod frame (51) bottom, rack push rod (65) can be with drive gear (66) meshing, dead lever (651) fixed connection is in the lower part that stay tube (1) is close to guide arm one side, drive gear (66) swivelling joint is in the intermediate position of dead lever (651), rack pull rod (67) fixed connection is at the top that support pull rod (61) is close to motor (3) one side, drive gear (66) and rack pull rod (67) meshing.

4. A pressure resistance test device for an indoor hydrant according to claim 3, wherein: the fire hydrant is characterized by further comprising an extrusion mechanism, wherein the extrusion mechanism is arranged on the supporting pull rod (61), the extrusion mechanism comprises a bent groove plate (71), a sliding inclined surface block (72), round head ejector rods (73), threaded support rods (74), pressure springs (75) and extrusion ejector rods (76), the bottom of one side, close to the motor (3), of the supporting pull rod (61) is fixedly connected with two bent groove plates (71), two sides, far away from the rack pull rod (67), of the bent groove plate (71) are slidably connected with the sliding inclined surface block (72), the sliding inclined surface block (72) is slidably connected with a support frame of the support tube (1), inclined surfaces are arranged on the sliding inclined surface block (72), the round head ejector rods (73) are slidably connected to the lower portion of the support frame of the support tube (1), the round head ejector rods (73) are in contact with the inclined surfaces of the sliding inclined surface block (72), the threaded support rods (74) are slidably connected to the round head ejector rods (73), two pressure springs (75) are connected between the round head ejector rods (73) and the threaded support rods (74), and one ends of the round head ejector rods (76) are in contact with the extrusion pin (1001).

5. The pressure resistance test device for an indoor hydrant according to claim 4, wherein: still including vibration mechanism, vibration mechanism establishes on piston push pedal (53), vibration mechanism is including direction bracing piece (81), strike ejector pin (82), return spring (83), rotate driving lever (84) and shifting block (85), direction bracing piece (81) fixed connection is near the upper portion of motor (3) one side in piston push pedal (53), strike ejector pin (82) sliding connection on direction bracing piece (81), strike one end that motor (3) were kept away from to ejector pin (82) and piston push pedal (53) contact, be connected with return spring (83) between direction bracing piece (81) and strike ejector pin (82), rotate driving lever (84) swivelling joint in the intermediate position that supports bent lever (2), rotate driving lever (84) and strike driving lever (82) sliding connection, driving block (85) fixed connection is at the top of screw thread pushing plate frame (51), driving lever (85) and the lower part of rotating driving lever (84) are located same horizontal line.

6. The pressure resistance test device for an indoor hydrant according to claim 5, wherein: still including round ejector pin (91) and extrusion spring (92), round ejector pin (91) slidingtype connection is on slip inclined plane piece (72), round ejector pin (91) are located the water inlet below of fire hydrant (1001), be connected with extrusion spring (92) between round ejector pin (91) and slip inclined plane piece (72).

7. The pressure resistance test device for an indoor hydrant according to claim 6, wherein: still including support ring board (101), extrusion splint (102) and bolt bull stick (103), support ring board (101) slidingtype connection is kept away from one side of supporting curved bar (2) in stay tube (1), and fire hydrant (1001) pass support ring board (101), support ring board (101) is last slidingtype to be connected with two extrusion splint (102), two extrusion splint (102) are the symmetry setting, the one end that fire hydrant (1001) is close to the water inlet is located between two extrusion splint (102), there are two bolt bull sticks (103) on support ring board (101) through threaded connection, two bolt bull stick (103) are the symmetry setting, bolt bull stick (103) are rotatable with extrusion splint (102).