A simplified fire truck access road acceptance simulation test device

Abstract

The present invention discloses a simple fire lane acceptance simulation test device, including a bracket, front wheels, rear wheels, a power travel mechanism and an alarm control box, two front wheels are installed on the bracket through a transmission shaft, two rear wheels are installed on the bracket through a fixed shaft, the transmission shaft is connected with a direction rotation mechanism matching the front wheels and a speed change switch matching the power travel mechanism, a height touch sensing mechanism is provided on the top front side of the bracket, width touch sensing mechanisms are provided on both sides of the top and the bottom of the bracket, a front wheel turning angle limiting mechanism matching the front wheels is provided on the bottom front side of the bracket, and a slope test component and a lane and building spacing test component are also provided on the side of the bracket. The present invention can test the height, width, slope and turning capacity of the fire lane and the spacing between the lane and the building at one time, has complete functions, reduces repetitive labor, improves work efficiency, has a simple structure, can be reused, has no material waste, and is fast to assemble and disassemble.

Description

Technical Field

[0001] The invention relates to a fire fighting auxiliary facility, in particular to a simple fire fighting lane acceptance simulation test device. Background Art

[0002] Fire lanes refer to roads for fire trucks to pass through in case of fire. At present, most of the fire lanes in my country use public roads in urban roads or residential areas.

[0003] Fire inspection and acceptance refers to the fire inspection and acceptance of completed construction projects, that is, after the completion of a construction project, the construction unit should submit an application for fire inspection and acceptance of the project to the public security fire department, and the project can only be put into use after passing the acceptance.

[0004] The acceptance of the fire lane in the project completion acceptance mainly includes the width of the road, the clear height, the distance from the building, the road turning radius, the width of the turnaround area, the lane slope and the slope of the climbing surface, etc. The width, clear height, building distance and slope of the road and the turnaround area can be directly measured using measurement tools to obtain data, but the radius gauge for measuring the turning radius of the road is relatively expensive, not often used, and requires professional measurement. Usually, the project completion acceptance only estimates the approximate value by visual inspection or drives the fire truck to the site to check the fire lane to see if its curve is smooth. This not only increases the cost but also fails to accurately determine whether the turning radius of the road meets the specifications and design requirements.

[0005] According to the national standards, the fire lanes of buildings should meet the following conditions:

[0006] (1) Both the height and width must reach 4m×4m;

[0007] (2) The minimum turning radius of fire trucks varies according to different types of buildings. The minimum turning radius of ordinary fire trucks is 9m, that of aerial vehicles is 12m, and that of special vehicles is 16-20m.

[0008] (3) The ground slope of the fire truck lane must be ≤8%, and the ground slope of the climbing surface must be ≤3%;

[0009] (4) The edge of the fire truck lane on the side close to the building's exterior wall should not be less than 5m away from the building's exterior wall;

[0010] (5) Dead-end fire truck lanes should have a turnaround lane or turnaround yard. The area of ​​the turnaround yard should not be less than 12m×12m. For high-rise buildings, it should not be less than 15m×15m. The turnaround yard for large fire trucks should not be less than 18×18m. 2 .

[0011] It is usually required to conduct a special inspection of the fire lane before completion. At present, a fire truck is used to drive to the site. As we all know, the fire department has a lot of affairs and relatively limited human resources. It is not easy to contact and an appointment is required. If the lane does not pass, the lane must be rectified and retested. Time is not allowed, which affects the quality and construction period of the building. What is more terrible is that the delivery time will be affected and high claims will be faced.

[0012] Common problems encountered during fire lane inspection are obstacles such as trees and hanging wires, fire trucks hitting curbs when turning, or the radius is too small for the fire truck to turn smoothly. These directly affect the fire extinguishing time and cause unnecessary losses to the lives and property of the country and the people. Summary of the invention

[0013] In order to solve the defects and shortcomings in the above-mentioned prior art, the present invention provides a simple fire lane acceptance simulation test device which can test the height, width, slope and turning capacity of the fire lane and the distance between the lane and the building at one time, has complete functions, reduces repetitive labor, improves work efficiency, has a simple structure, is easy to manufacture and use, is reusable, has no material waste, is quick to assemble and disassemble, and has low manufacturing and use costs.

[0014] The technical solution of the present invention is as follows: a simple fire lane acceptance simulation test device comprises a bracket, two front wheels installed on the front side of the bottom of the bracket, two rear wheels installed on the rear side of the bottom of the bracket, a power walking mechanism installed in the middle of the bottom of the bracket and an alarm control box installed on the front side of the bracket, the two front wheels are installed on the bracket through a transmission shaft, and the two rear wheels are installed on the bracket through a fixed shaft, and the transmission shaft is connected with a direction rotation mechanism cooperating with the front wheels and a speed switch cooperating with the power walking mechanism, a height touch sensing mechanism is provided on the top front side of the bracket, width touch sensing mechanisms are provided on both sides of the top and the bottom of the bracket, a front wheel angle limiting mechanism cooperating with the front wheels is provided on the bottom front side of the bracket, and a slope test component and a lane and building spacing test component are also provided on the side of the bracket.

[0015] The present invention can test the height, width, slope and turning capacity of the fire lane and the distance between the lane and the building at one time, has complete functions, reduces repetitive work, improves work efficiency, has a simple structure, is easy to manufacture and use, is reusable, has no material waste, is quick to assemble and disassemble, and has low manufacturing and use costs.

[0016] Preferably, the width touch sensing mechanism is divided into an upper left corner touch sensing mechanism, an upper right corner touch sensing mechanism, a lower left corner touch sensing mechanism and a lower right corner touch sensing mechanism, and all touch sensing mechanisms include a fixed slip ring fixed on the bracket, an adjustment buffer mechanism installed on the fixed slip ring, a touch sensing rod connected to the adjustment buffer mechanism, and a micro switch cooperating with the touch sensing rod, and the adjustment buffer mechanism is used to realize free adjustment of the touch sensing rod in height, length and angle.

[0017] Preferably, the adjustment buffer mechanism includes a fixed steel plate fixed on a fixed slip ring, a sensing rod fixing bar slidably connected to the fixed steel plate, and a buffer spring fixed to one end of the sensing rod fixing bar, the touch sensing rod is fixed to the other end of the buffer spring, two first long strip holes are provided on the fixed steel plate, a second long strip hole matching the first long strip hole is provided on the sensing rod fixing bar, an angle is formed between the second long strip hole and the first long strip hole, and the micro switch is fixed to the fixed steel plate through a switch fixing bracket.

[0018] Preferably, the fixed slip ring is made of DN50 galvanized pipe with a length of 140-160mm; and the fixed slip ring is fixed to the steel pipe of the bracket by 4 Ф8mm bolts, the fixed steel plate is a fan-shaped steel plate with a height of 180-220mm, which is welded to the upper part of the fixed slip ring, the lengths of the first long strip hole and the second long strip hole are both 140-160mm, the length of the buffer spring is 90-110mm, and the sensing rod fixing strip is made of 40*4mm or 50*5mm galvanized flat steel or angle steel.

[0019] Preferably, the two ends of the buffer spring are respectively welded to the sensing rod fixing bar and the touch sensing rod, the touch sensing rod is made of 40*4mm flat steel, and its length is 280-300mm, the height of the upper touch sensing rod from the ground is greater than 4m, and the distance between the touch sensing rods on the left and right sides is greater than 4m.

[0020] Preferably, the front wheel turning angle limiting mechanism comprises two limiting baffles for limiting the front wheel turning angle and a limiting socket plate cooperating with the limiting baffles, and the limiting socket plate is provided with a plurality of gear adjustment holes, and the gear adjustment holes are divided into four gears of 9m, 12m, 16m and 20m.

[0021] Preferably, the alarm control box is suspended in front of the bracket, and its protection level is greater than IP55. The micro switch adopts a waterproof micro switch. When the touch sensing rod hits an obstacle, the micro switch will be triggered, and the alarm control box will issue an alarm in time, and the corresponding collision position signal light will light up.

[0022] Preferably, the bracket is assembled from C-shaped steel, steel pipe or profile, the height and width of the bracket are both less than 4m, the entire bracket is connected by bolts, steel pipe fasteners or pins, and scissor braces are provided on each side for auxiliary reinforcement.

[0023] Preferably, the direction turning mechanism includes a steering wheel and a steering shaft connected between the steering wheel and the transmission shaft, the power walking mechanism includes a power source, a seat, a driven front wheel and a driven rear wheel, and the walking speed of the power walking mechanism is controlled within 5 km / h.

[0024] Preferably, the slope testing assembly comprises horizontal test rods installed on both sides of the bracket for testing the slope of the fire lane and a digital incline meter cooperating with the horizontal test rods, the top surface of the horizontal test rods is a plane, and the digital incline meter is directly placed on the top surface of the horizontal test rods, and the lane and building spacing testing assembly comprises a laser rangefinder bound to one side of the bracket and a magnifying glass installed in front of the digital display disk of the laser rangefinder.

[0025] The present invention can test the height, width, slope and turning capacity of the fire lane and the distance between the lane and the building at one time, has complete functions, reduces repetitive work, improves work efficiency, has a simple structure, is easy to manufacture and use, is reusable, has no material waste, is quick to assemble and disassemble, and has low manufacturing and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the touch sensing mechanism in the present invention;

[0028] Figure 3 It is a structural schematic diagram of the front wheel turning angle limiting mechanism in the present invention;

[0029] In the figure, 1. front wheel, 2. rear wheel, 3. height touch sensing mechanism, 4. upper left corner touch sensing mechanism, 5. upper right corner touch sensing mechanism, 6. lower left corner touch sensing mechanism, 7. lower right corner touch sensing mechanism, 8. driving front wheel, 9. driving rear wheel, 10. power walking mechanism, 11. seat, 12. transmission shaft, 13. steering wheel, 14. scissors support, 15. alarm control box, 16. fixed slip ring, 17. bolt, 18. fixed steel plate, 19. first long strip hole, 20. second long strip hole, 21. sensor rod fixing strip, 22. buffer spring, 23. touch sensing rod, 24. micro switch, 25. steering shaft, 26. limit baffle, 27. limit jack plate, 28. gear adjustment hole, 29. bracket, 30. switch fixing bracket. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings, but this does not limit the protection scope of the present invention.

[0031] like Figure 1-3As shown, a simple fire lane acceptance simulation test device includes a bracket 29, two front wheels 1 installed on the front side of the bottom of the bracket 29, two rear wheels 2 installed on the rear side of the bottom of the bracket 29, a power walking mechanism 10 installed in the middle of the bottom of the bracket 29, and an alarm control box 15 installed on the front side of the bracket 29. The two front wheels are installed on the bracket 29 through a transmission shaft 12, and the two rear wheels are installed on the bracket 29 through a fixed shaft. The transmission shaft 12 is connected with a direction rotation mechanism that matches the front wheel 1 and a speed switch that matches the power walking mechanism 10. A height touch sensing mechanism 3 is provided on the top front side of the bracket 29, and width touch sensing mechanisms are provided on both sides of the top and the bottom of the bracket 29. A front wheel turning angle limiting mechanism that matches the front wheel 3 is provided on the bottom front side of the bracket 29. The side of the bracket 29 is also provided with a slope test component and a lane and building spacing test component. The width touch sensing mechanism is divided into an upper left corner touch sensing mechanism 4, an upper right corner touch sensing mechanism 5, a lower left corner touch sensing mechanism 6 and a lower right corner touch sensing mechanism 7. All touch sensing mechanisms include a fixed slip ring 16 fixed on a bracket 29, an adjustment buffer mechanism installed on the fixed slip ring 16, a touch sensing rod 23 connected to the adjustment buffer mechanism, and a micro switch 24 cooperating with the touch sensing rod 23. The adjustment buffer mechanism is used to realize free adjustment of the touch sensing rod 23 in height, length and angle. The adjustment buffer mechanism includes a fixed steel plate 18 fixed on a fixed slip ring 16, a sensing rod fixing strip 21 slidably connected to the fixed steel plate 18, and a buffer spring 22 fixed to one end of the sensing rod fixing strip 21, and a touch sensing rod 23 is fixed to the other end of the buffer spring 22. Two first long strip holes 19 are provided on the fixed steel plate 18, and a second long strip hole 20 matching the first long strip hole 19 is provided on the sensing rod fixing strip 21. An angle is formed between the second long strip hole 20 and the first long strip hole 19, and a micro switch 24 is fixed to the fixed steel plate 18 through a switch fixing bracket 30. The fixed slip ring 16 is made of DN50 galvanized pipe with a length of 140-160mm; and the fixed slip ring 16 is fixed to the steel pipe of the bracket 29 by four Φ8mm bolts 17. The fixed steel plate 18 is a fan-shaped steel plate with a height of 180-220mm, which is welded to the upper part of the fixed slip ring 16. The lengths of the first long strip hole 19 and the second long strip hole 20 are both 140-160mm. The length of the buffer spring 22 is 90-110mm. The sensing rod fixing strip 21 is made of 40*4mm or 50*5mm galvanized flat steel or angle steel. The two ends of the buffer spring 22 are respectively welded to the sensing rod fixing strip 21 and the touch sensing rod 23. The touch sensing rod 23 is made of 40*4mm flat steel with a length of 280-300mm. The height of the upper touch sensing rod from the ground is greater than 4m, and the distance between the touch sensing rods on the left and right sides is greater than 4m.The front wheel turning angle limiting mechanism includes two limiting baffles 26 for limiting the front wheel turning angle and a limiting jack plate 27 cooperating with the limiting baffles 26. The limiting jack plate 27 is provided with four gear adjustment holes 28, and the gear adjustment holes 28 are divided into four gears of 9m, 12m, 16m and 20m. The alarm control box 15 is suspended in front of the bracket 29, and its protection level is greater than IP55. The micro switch 24 adopts a waterproof micro switch. When the touch sensing rod 23 hits an obstacle, the micro switch 24 will be triggered, and the alarm control box 15 will sound an alarm in time, and the corresponding collision position signal light will light up. The bracket 29 is processed and assembled with C-shaped steel, steel pipe or profile. The height and width of the bracket 29 are less than 4m. The entire bracket 29 is connected by bolts, steel pipe fasteners or pins. In addition, scissor braces 14 are set on each side for reinforcement. The direction turning mechanism includes a steering wheel 13 and a steering shaft 25 connected between the steering wheel 13 and the transmission shaft 12. The power travel mechanism 10 includes a power source, a seat 11, a driving front wheel 8 and a driving rear wheel 9, and the travel speed of the power travel mechanism 10 is controlled within 5 km / h. The slope test assembly includes a horizontal test rod installed on both sides of the bracket 29 for testing the slope of the fire lane and a digital display inclinometer matched with the horizontal test rod. The top surface of the horizontal test rod is a plane, and the digital display inclinometer is directly placed on the top surface of the horizontal test rod. The lane and building spacing test assembly includes a laser rangefinder bound to one side of the bracket 29 and a magnifying glass installed in front of the digital display disk of the laser rangefinder.

[0032] The design ideas of the present invention are as follows:

[0033] 1. Make a simple test device (that is, the test device of the present invention) by yourself, and notify the fire department to come for acceptance after passing the test. This ensures that it passes the acceptance at one time, saving a lot of time and energy.

[0034] 2. The test device can be assembled with C-shaped steel, steel pipe or other profiles. The height and width of the test device are slightly less than 4m. The whole device can be connected by bolts, steel pipe fasteners or pins. In addition, scissor braces are set on each side for auxiliary reinforcement.

[0035] 3. Four wheels are installed under the test device. The wheels can be ordinary waste tricycle wheels or other wheels (as light as possible while ensuring safety):

[0036] (1) The two wheels in front of the device can be turned by the steering wheel. The direction and angle of rotation must be controlled within the allowable range to ensure that the entire test device moves within the allowable minimum turning radius. This is controlled by the limit baffle installed on the side of the wheel (the position of the limit baffle is adjustable and can be adjusted according to the turning radius required by different models of fire trucks). There are four gears: 9m, 12m, 16m, and 20m.

[0037] (2) The two wheels at the back of the device are fixed and their direction and angle cannot be adjusted.

[0038] 4. The middle of the test device is the driving part (powered walking mechanism), which drives the entire test device to move:

[0039] (1) This power travel mechanism can be temporarily replaced by an electric sand transporter at the construction site. Just raise the front wheel of the sand transporter with a universal wheel to ensure that the direction of the entire test device is not affected by the steering wheel of the sand transporter. The power is supplied by a battery;

[0040] (2) The entire test device and the power travel mechanism can be tied and fixed using a variety of simple methods;

[0041] (3) The travel speed of the powered travel mechanism is controlled within 5 km / h. Because the travel speed is slow, the speed and direction can be controlled by one person at the same time.

[0042] 5. Design and installation of touch sensing mechanism:

[0043] (1) Install touch sensing rods on the front and left and right sides of the test device frame, divided into two layers, with each side being an independent rod;

[0044] (2) The upper layer is mainly for obstacles such as tree branches and hanging wires, while the lower layer is mainly for obstacles such as curbs and stones;

[0045] (3) Install a fixed ring (fixed slip ring) on ​​the corresponding steel pipe of the test device. The ring is made of DN50 galvanized pipe and has a length of 150 mm. The ring is fixed to the steel pipe by four Ø8 mm bolts.

[0046] (4) Weld a fan-shaped steel plate about 200 mm high on the upper half of the ring, and open two long holes (the first long hole) about 150 mm long on the steel plate;

[0047] (5) The touch sensing rod is directly welded to the sensing rod fixing strip through a buffer spring with a length of about 100 mm. The fixing strip can be made of 40*4mm or 50*5mm galvanized flat steel or angle steel. A long hole (the second long strip hole) is opened on the fixing strip. By combining it with the two long waist holes on the fan-shaped steel plate, the touch device can be freely adjusted in height, length and angle. The buffer spring only needs to ensure that the sensing rod does not sag and can move flexibly.

[0048] (6) Install a switch fixing bracket for fixing the micro switch on the fan-shaped steel plate;

[0049] (7) The touch sensing rod can be made of 40*4mm flat steel with a length of about 300mm. The height of the upper touch sensing rod from the ground should be greater than 4m, and the distance between the touch sensing rods on the left and right sides should be greater than 4m. This is the standard requirement for the height and width of the fire truck lane. In actual testing, the height and width data will be enlarged a little, so that it can be easier to pass the subsequent formal fire truck acceptance.

[0050] 6. Hang an alarm control box (protection level should be greater than IP55) in front of the test device, and install a micro switch (waterproof type) on the side of the touch sensor rod. The micro switch can be set as needed. Usually, it must be set at the four corners of the upper and lower layers of the test device. When the touch sensor rod hits an obstacle, the sensor rod moves and touches the micro switch, and the alarm control box will sound an alarm in time, and the corresponding collision position signal light will light up. The control circuit and electrical components of the alarm controller are ordinary parts, and it is very easy to design and assemble by yourself. The power supply should be dry battery powered, which is quite safe.

[0051] 7. The project department will make corrections based on the obstacle location indicated by the alarm on the test device and then re-test after the corrections.

[0052] 8. Fire lane slope test:

[0053] (1) After all the racks of the entire test device are installed and fixed, perform horizontal debugging. Install a horizontal test rod on each of the racks on the left and right sides of the test device (the upper part of the rod should be flat). After correcting the level with a level ruler, fix the horizontal test rod;

[0054] (2) Through visual inspection, the places with large slopes in the entire fire lane are determined as test points. After the test device drives to each test point and stops steadily, a digital inclinometer is placed directly on the horizontal test rod to read and record the slope data;

[0055] (3) The slope test of the climbing surface is the same as the above.

[0056] 9. Test of the distance between the fire lane and the building: A laser rangefinder is bound to one side of the test device, and a magnifying glass is installed in front of the digital display of the laser rangefinder, so that the tester can easily read the data in the driver's seat. The tester tests and records the distance between the measuring point and the building while walking.

[0057] 10. Turning yard test: The test device is tested for turning in the turning yard, and the turning should be convenient and flexible.

[0058] 11. This device is especially suitable for testing companies because of its high frequency of use. This test device and the power travel mechanism can be improved and designed into special equipment, which can be repeatedly assembled and disassembled for use in any engineering project. Only the power travel mechanism needs to be specially modified.

[0059] The innovations of the present invention are as follows:

[0060] 1. Each new construction project must undergo inspection and acceptance of the fire lane before completion. The present invention has promotional value and practicality.

[0061] 2. The materials and equipment of the present invention are common materials on site, which are easy to use and do not need to be purchased separately. The whole device does not need to be adjusted for different types of fire trucks, and only the limit block for controlling the rotation of the front wheel needs to be adjusted.

[0062] 3. The entire test device can be reused, there is no material waste, and the assembly and disassembly are fast.

[0063] 4. The alarm controller is very simple to make and the cost is very low. It can be easily installed by an ordinary electrician. Just mark the wiring terminals of the controller. Since the micro switch is a passive contact and the wires have no polarity, you only need to connect the corresponding micro switch wires according to the position marks.

[0064] 5. Save time and ensure that the fire lane is accepted in one go.

[0065] 6. The testing device can test the height, width, slope and turning capacity of the fire lane and the distance between the lane and the building at one time. It is fully functional, reduces repetitive work, improves work efficiency, and is quite innovative.

Claims

1. A simple fire lane acceptance simulation test device, characterized in that: It includes a bracket, two front wheels installed on the front side of the bottom of the bracket, two rear wheels installed on the rear side of the bottom of the bracket, a power travel mechanism installed in the middle of the bottom of the bracket, and an alarm control box installed on the front side of the bracket. The two front wheels are installed on the bracket through a transmission shaft, and the two rear wheels are installed on the bracket through a fixed shaft. The transmission shaft is connected with a direction rotation mechanism that matches the front wheels and a speed change switch that matches the power travel mechanism. The top front side of the bracket is provided with a height touch sensing mechanism, the top two sides and the bottom two sides of the bracket are provided with a width touch sensing mechanism, the bottom front side of the bracket is provided with a front wheel angle limiting mechanism that matches the front wheels, and the side of the bracket is also provided with a slope test component and a lane and building spacing test component; The width touch sensing mechanism is divided into an upper left corner touch sensing mechanism, an upper right corner touch sensing mechanism, a lower left corner touch sensing mechanism and a lower right corner touch sensing mechanism. All touch sensing mechanisms include a fixed slip ring fixed on a bracket, an adjustment buffer mechanism installed on the fixed slip ring, a touch sensing rod connected to the adjustment buffer mechanism, and a micro switch cooperating with the touch sensing rod. The adjustment buffer mechanism is used to realize free adjustment of the touch sensing rod in height, length and angle. The adjustment buffer mechanism comprises a fixed steel plate fixed on a fixed slip ring, a sensing rod fixing strip slidably connected to the fixed steel plate, and a buffer spring fixed to one end of the sensing rod fixing strip, the touch sensing rod is fixed to the other end of the buffer spring, two first long strip holes are provided on the fixed steel plate, a second long strip hole matching the first long strip hole is provided on the sensing rod fixing strip, an angle is formed between the second long strip hole and the first long strip hole, and the micro switch is fixed to the fixed steel plate through a switch fixing bracket; The front wheel turning angle limiting mechanism includes two limiting baffles for limiting the front wheel turning angle and a limiting socket plate cooperating with the limiting baffles. The limiting socket plate is provided with a plurality of gear adjustment holes, and the gear adjustment holes are divided into four gears of 9m, 12m, 16m and 20m.

2. A simplified fire lane acceptance simulation test device according to claim 1, characterized in that: The fixed slip ring is made of DN50 galvanized pipe with a length of 140-160mm; and the fixed slip ring is fixed to the steel pipe of the bracket by 4 Ф8 bolts, the fixed steel plate is a fan-shaped steel plate with a height of 180-220mm, which is welded to the upper part of the fixed slip ring, the lengths of the first long strip hole and the second long strip hole are both 140-160mm, the length of the buffer spring is 90-110mm, and the sensing rod fixing strip is made of 40cm*4mm galvanized flat steel or 40cm*4mm angle steel or 50cm*5mm galvanized flat steel or 50cm*5mm angle steel.

3. A simplified fire lane acceptance simulation test device according to claim 1, characterized in that: The two ends of the buffer spring are respectively welded to the sensing rod fixing bar and the touch sensing rod. The touch sensing rod is made of 40cm*4mm flat steel and has a length of 280-300mm. The height of the upper touch sensing rod from the ground is greater than 4m, and the distance between the touch sensing rods on the left and right sides is greater than 4m.

4. A simplified fire lane acceptance simulation test device according to claim 1, characterized in that: The alarm control box is suspended in front of the bracket, and its protection level is greater than IP55. The micro switch adopts a waterproof micro switch. When the touch sensing rod hits an obstacle, the micro switch will be triggered, and the alarm control box will issue an alarm in time, and the corresponding collision position signal light will light up.

5. A simplified fire lane acceptance simulation test device according to claim 1, characterized in that: The bracket is assembled from C-shaped steel, steel pipes or profiles. The height and width of the bracket are both less than 4m. The entire bracket is connected by bolts, steel pipe fasteners or pins. In addition, scissor braces are set on each side for auxiliary reinforcement.

6. A simplified fire lane acceptance simulation test device according to claim 1, characterized in that: The direction turning mechanism includes a steering wheel and a steering shaft connected between the steering wheel and the transmission shaft, and the power walking mechanism includes a power source, a seat, a driving front wheel and a driving rear wheel, and the walking speed of the power walking mechanism is controlled within 5km / h.

7. A simplified fire lane acceptance simulation test device according to claim 1, characterized in that: The slope testing assembly includes horizontal testing rods installed on both sides of the bracket for testing the slope of the fire lane and a digital display slope meter matched with the horizontal testing rods. The top surface of the horizontal testing rods is a plane, and the digital display slope meter is directly placed on the top surface of the horizontal testing rods. The lane and building spacing testing assembly includes a laser rangefinder bound to one side of the bracket and a magnifying glass installed in front of the digital display disk of the laser rangefinder.

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