An outdoor anti-collision test device for ground fire hydrants

Abstract

The present invention discloses an outdoor anti-collision type ground fire hydrant anti-collision performance test device, comprising a fire hydrant sample, a pressurized water supply pipeline, a collision vehicle, an outer circular guide rail, and an inner circular guide rail. The outer circular guide rail and the inner circular guide rail are fixed on the ground as concentric circles. The fire hydrant sample is located at the center of the outer circular guide rail and the inner circular guide rail. The lower part of the fire hydrant sample is installed at the water outlet end of the pressurized water supply pipeline. Two grooved wheels I are respectively provided on the inner circular guide rail and the outer circular guide rail. Two parallel straight guide rails are connected between the grooved wheels I on the inner circular guide rail and the outer circular guide rail. A freely slidable collision vehicle is provided on the straight guide rail. The present invention realizes the collision of the collision vehicle with the anti-collision type ground fire hydrant through a PCL controller. The present invention has a high degree of automation, greatly reduces labor, and can realize the collision of the fire hydrant sample at any angle of 360° horizontally, so as to improve the detection quality and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fire protection product detection, and in particular to an outdoor anti-collision type ground fire hydrant anti-collision performance test device. Background Art

[0002] Outdoor anti-collision ground fire hydrants adopt a two-stage design, with the bottom valve buried underground and the hydrant body exposed above the ground. When the fire hydrant is hit, the bottom valve should not leak. A water stop valve is installed inside the bottom valve to prevent water leakage. After replacing the upper valve body, it can be used normally. At present, the collision test of ground fire hydrants is mostly done by the inspectors holding heavy objects to hit the upper valve body to break it and then determine whether the valve seat is leaking. This method has high labor intensity, many human factors and safety hazards, and low test quality and efficiency. Summary of the invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides an outdoor anti-collision type ground fire hydrant anti-collision performance test device with low labor intensity and high degree of automation.

[0004] The present invention is achieved through the following technical solutions:

[0005] An outdoor anti-collision ground fire hydrant anti-collision performance test device, which is special in that it includes a fire hydrant sample, a pressurized water supply pipeline, an impact vehicle, an outer circular guide rail, and an inner circular guide rail; the outer circular guide rail and the inner circular guide rail are fixed on the ground as concentric circles, the fire hydrant sample is located at the center of the outer circular guide rail and the inner circular guide rail, and the lower part of the fire hydrant sample is installed at the water outlet end of the pressurized water supply pipeline; two grooved wheels I are respectively provided on the inner circular guide rail and the outer circular guide rail, two parallel straight guide rails are connected between the grooved wheels I on the inner circular guide rail and the outer circular guide rail, and a freely slidable impact vehicle is provided on the straight guide rail; the horizontal center line between the two straight guide rails intersects with the vertical center line of the fire hydrant sample.

[0006] As a preferred solution, a positioning plate I is provided at one end of the two straight guide rails close to the inner circular guide rail, and a positioning plate II is provided at the other end, and a reverse switch is installed on the positioning plate II; the bottom of the impact vehicle slides freely on the two straight guide rails through four grooved wheels II; the two grooved wheels II away from the vertical center line are installed on the motor shaft of the double-shaft motor, the double-shaft motor is fixed to the bottom of the impact vehicle, and an elastic bumper is installed on the outer casing of the double-shaft motor. When the impact vehicle moves, the elastic bumper will contact the reverse switch, and the double-shaft motor will accelerate in the reverse direction and make the impact vehicle drive towards the fire hydrant sample.

[0007] Furthermore, the water inlet end of the booster water supply pipeline is connected to the booster pump, the booster pump is connected to the water inlet pipe, and the water inlet pipe is connected to the incoming water pipe through the electric control valve II.

[0008] Furthermore, the booster water supply pipeline is provided with a pressure sensor I and an electric control valve I; the booster pump is provided with a pressure sensor II.

[0009] Furthermore, the double-shaft motor, reverse switch, pressure sensor I, pressure sensor II, electric control valve I, and electric control valve II are respectively connected to the PLC controller through control lines, and the PLC controller realizes automatic control of the double-shaft motor, reverse switch, pressure sensor I, pressure sensor II, electric control valve I, and electric control valve II through programming.

[0010] As a preferred solution, a bracket is fixed on the ground outside the outer circular guide rail, and a monitoring camera is installed at the top center of the bracket. The monitoring camera is located directly above the fire hydrant sample and can observe the collision situation of the fire hydrant sample in real time.

[0011] Furthermore, the monitoring camera is connected to the PLC controller via a control line, and a display can be provided on the PLC controller to display the images transmitted by the monitoring camera.

[0012] As a preferred solution, the mass of the impact vehicle is known, a counterweight is placed in the vehicle compartment, and multiple collision tests can be performed by changing the counterweight.

[0013] Furthermore, the impact vehicle is provided with a car front plate in the front, a car rear plate in the rear, a car side plate on the side, and a car bottom plate on the ground, and the car front plate is connected to the impact surface steel plate through connecting ribs.

[0014] The beneficial effects of the present invention are as follows: the present invention realizes the anti-collision performance test of the anti-collision type ground fire hydrant through the automatic movement of the impact vehicle, is controlled by the PCL controller, has a high degree of automation, greatly reduces the manpower, and can achieve horizontal 360° impact on the fire hydrant sample at any angle, thereby improving the detection quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of the main structure of the present invention;

[0016] Attached Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Attached Figure 3 It is a left-side structural schematic diagram of the present invention.

[0018] In the figure, 1 is the ground, 2 is the outer circular guide rail, 4 is the connecting flange, 6 is the fire hydrant sample, 7 is the bracket, 8 is the monitoring camera, 9 is the positioning plate I, 11 is the groove wheel I, 12 is the straight guide rail, 13 is the impact surface steel plate, 14 is the connecting rib, 15 is the front plate of the carriage, 16 is the side plate of the carriage, 17 is the rear plate of the carriage, 18 is the PLC controller, 19 is the bottom plate of the carriage, 21 is the axle seat, 22 is the motor shaft, 23 is the groove wheel II, 24 is the double-output shaft motor, 25 is the positioning plate II, 26 is the booster water supply pipeline, 27 is the pressure sensor I, 28 is the electric control valve I, 29 is the booster pump, 30 is the pressure sensor II, 31 is the water inlet pipe, 32 is the electric control valve II, 33 is the water pipe, 34 is the underground part, 35 is the counterweight, 36 is the inner circular guide rail, 38 is the pressure plate, 39 is the support plate, 40 is the strengthening connection plate, 41 is the support, 42 is the impact vehicle, 43 is the horizontal center line, 44 is the vertical center line, 45 is the reverse switch, 46 is the elastic contact plate. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention. The protection scope of the present invention includes but is not limited to the following embodiments. Any modifications made to the details and forms of the technical solution of the present invention without departing from the spirit and scope of the present application shall fall within the protection scope of the present invention.

[0020] The accompanying drawings are a specific embodiment of the present invention, which includes a fire hydrant sample 6, a pressurized water supply pipeline 26, an impact vehicle 42, an outer circular guide rail 2, and an inner circular guide rail 36.

[0021] The outer circular guide rail 2 and the inner circular guide rail 36 of this embodiment are fixed on the ground 1 as concentric circles, and the fire hydrant sample 6 is located at the center of the outer circular guide rail 2 and the inner circular guide rail 36. The lower part of the fire hydrant sample 6 is fixed to the flange 4 by bolts, and the flange 4 is installed at the water outlet end of the boosting water supply pipeline 26. The boosting water supply pipeline 26 is provided with a pressure sensor I 27 and an electric control valve I 28. The water inlet end of the boosting water supply pipeline 26 is connected to a boosting pump 29, and the boosting pump 29 is provided with a pressure sensor II 30. The boosting pump 29 is connected to a water inlet pipe 31, and the water inlet pipe 31 is connected to a water pipe 33 through an electric control valve II 32.

[0022] Two grooved wheels Ⅰ11 are respectively provided on the inner circular guide rail 36 and the outer circular guide rail 2, and the grooved wheels Ⅰ11 are mounted on the support 41. Two parallel straight guide rails 12 are connected between the grooved wheels Ⅰ11 on the inner circular guide rail 36 and the outer circular guide rail 2, and the support 41 is respectively fixed below the ends of the two straight guide rails 12 by bolts; the two straight guide rails 12 are provided with a positioning plate Ⅰ9 at one end close to the inner circular guide rail 36, and a positioning plate Ⅱ25 at the other end, and a reverse switch 45 is installed on the positioning plate Ⅱ25, and the reverse switch 45 is a switch for controlling the reverse rotation of the double-output shaft motor 24; the bottom of the impact vehicle 42 slides freely on the two straight guide rails 12 through four grooved wheels Ⅱ23, and the grooved wheels Ⅱ23 are mounted on the shaft seat 21, and the bolts The axle seat 21 is fixed under the car floor 19, the mass of the impact vehicle 42 is known, and a counterweight 35 is placed in the car of the impact vehicle 42; the impact vehicle 42 is provided with a car front plate 15 in front, a car rear plate 17 in the rear, a car side plate 16 on the side, and a car floor 19 on the ground, and the car front plate 15 is connected to the impact surface steel plate 13 through connecting ribs 14; two grooved wheels II 23 away from the vertical center line 44 are installed on the motor shaft 22 of the double-axle motor 24, the double-axle motor 24 is fixed under the car floor 19, and an elastic impact plate 46 is installed on the outer shell of the double-axle motor 24; the horizontal center line 43 between the two straight guide rails 12 intersects with the vertical center line 44 of the fire hydrant sample 6.

[0023] A bracket 7 is fixed to the ground outside the outer circular guide rail 2 of this embodiment by bolts, and a monitoring camera 8 is installed at the top center of the bracket 7, and the monitoring camera 8 is located directly above the fire hydrant sample 6; the double-axis motor 24, the reverse switch 45, the pressure sensor I27, the pressure sensor II30, the electric control valve I28, the electric control valve II32, and the monitoring camera 8 are respectively connected to the PLC controller 18 through control lines, and the PLC controller 18 is programmed by existing programming technology to control the double-axis motor 24, the reverse switch 45, the pressure sensor I27, the pressure sensor II30, the electric control valve I28, and the electric control valve II32 respectively; the PLC controller 18 can be installed with a display, and the picture recorded by the monitoring camera 8 is transmitted to the PLC controller 18 in real time and then displayed through the display.

[0024] In the specific operation of this embodiment, the fire hydrant sample 6 is installed on the flange 4 with bolts, the collision position of the fire hydrant sample 6 is determined, and the impact vehicle 42 is pushed. The grooved wheel I11 makes a circular motion on the inner circular guide rail 36 and the outer circular guide rail 2 at the same time, so that the impact surface steel plate 13 of the impact vehicle 42 stops when it faces the collision position of the fire hydrant sample 6, and the test start button in the PLC controller 18 is pressed. The monitoring camera 8 works, the booster pump 29 works, the electric control valve I28 and the electric control valve II32 are turned on, and when the pressure sensor I27 rises to the specified pressure value, the electric control valve I28 is closed, and the double-output shaft motor 24 works to move the impact vehicle 42. The movement of the impact vehicle 42 drives the elastic impact plate 46 to swing. When the elastic impact plate 46 contacts the reverse After the switch 45 is turned on, the double-shaft motor 24 accelerates in the reverse direction and drives the impact vehicle 42 toward the fire hydrant sample 6. After the impact surface steel plate 13 of the impact vehicle 42 contacts and collides with the fire hydrant sample 6, the double-shaft motor 24 stops working. The images of the fire hydrant sample 6 before and after the collision transmitted by the monitoring camera 8 are compared through the display of the PLC controller 18 to determine whether the fire hydrant sample 6 is broken. The fire hydrant sample 6 is leaked according to whether the value of the pressure sensor I 27 is reduced. The impact kinetic energy is calculated according to the mass of the impact vehicle 42 and the rolling friction coefficient between the four grooved wheels II 23 and the straight guide rail 12 and the speed of the double-shaft motor 24 when it hits the fire hydrant sample 6. Finally, a test conclusion is made on the collision performance of the fire hydrant sample 6. The device of this embodiment can realize the horizontal 360° collision with the fire hydrant sample 6 through the circular motion of the grooved wheel I 11 on the inner circular guide rail 36 and the outer circular guide rail 2, so as to improve the detection quality and efficiency.

Claims

1. An outdoor anti-collision type ground fire hydrant anti-collision performance test device, characterized in that: It comprises a fire hydrant sample (6), a pressurized water supply pipeline (26), an impact vehicle (42), an outer circular guide rail (2), and an inner circular guide rail (36); the outer circular guide rail (2) and the inner circular guide rail (36) are fixed on the ground (1) as concentric circles, the fire hydrant sample (6) is located at the center of the outer circular guide rail (2) and the inner circular guide rail (36), and the lower part of the fire hydrant sample (6) is installed at the water outlet of the pressurized water supply pipeline (26); two grooved wheels I (11) are respectively provided on the inner circular guide rail (36) and the outer circular guide rail (2), two parallel straight guide rails (12) are connected between the grooved wheels I (11) on the inner circular guide rail (36) and the outer circular guide rail (2), and a freely slidable impact vehicle (42) is provided on the straight guide rail (12); the horizontal center line (43) between the two straight guide rails (12) intersects with the vertical center line (44) of the fire hydrant sample (6); The two straight guide rails (12) are provided with a positioning plate I (9) at one end close to the inner circular guide rail (36), and a positioning plate II (25) at the other end, and a reversing switch (45) is installed on the positioning plate II (25); the bottom of the impact vehicle (42) slides freely on the two straight guide rails (12) through four grooved wheels II (23); two grooved wheels II (23) away from the vertical center line (44) are installed on the motor shaft (22) of the double-output shaft motor (24), the double-output shaft motor (24) is fixed to the bottom of the impact vehicle (42), and an elastic contact plate (46) is installed on the outer shell of the double-output shaft motor (24); The water inlet end of the booster water supply pipeline (26) is connected to a booster pump (29), the booster pump (29) is connected to a water inlet pipe (31), and the water inlet pipe (31) is connected to a water supply pipe (33) via an electric control valve II (32); The booster water supply pipeline (26) is provided with a pressure sensor I (27) and an electric control valve I (28); the booster pump (29) is provided with a pressure sensor II (30).

2. According to claim 1, an outdoor anti-collision type ground fire hydrant anti-collision performance test device is characterized in that: The dual-output shaft motor (24), the reverse switch (45), the pressure sensor I (27), the pressure sensor II (30), the electric control valve I (28), and the electric control valve II (32) are respectively connected to the PLC controller (18) via control lines.

3. According to claim 1, an outdoor anti-collision type ground fire hydrant anti-collision performance test device is characterized in that: A bracket (7) is fixed on the ground outside the outer circular guide rail (2), and a monitoring camera (8) is installed at the top center of the bracket (7). The monitoring camera (8) is located directly above the fire hydrant sample (6).

4. The outdoor anti-collision type ground fire hydrant anti-collision performance test device according to claim 3 is characterized in that: The monitoring camera (8) is connected to the PLC controller (18) via a control line.

5. According to claim 1, the outdoor anti-collision type ground fire hydrant anti-collision performance test device is characterized by: The mass of the impact vehicle (42) is known, and a counterweight (35) is placed in the vehicle compartment of the impact vehicle (42).

6. The outdoor anti-collision type ground fire hydrant anti-collision performance test device according to claim 5 is characterized in that: The impact vehicle (42) is provided with a carriage front plate (15) at the front, a carriage rear plate (17) at the rear, carriage side plates (16) at the sides, and a carriage bottom plate (19) at the ground, and the carriage front plate (15) is connected to the impact surface steel plate (13) via connecting ribs (14).

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