A fire hose inspection apparatus

Abstract

The application relates to a fire hose inspection and detection device and relates to the field of fire hose detection, which comprises a test table, water outlet boxes and water storage frames arranged in a diagonal line on the left and right sides of the test table, two locking mechanisms corresponding to the water outlet boxes and the water storage frames respectively arranged at the upper end of the test table, and an environment simulation unit arranged between the two locking mechanisms. The fire hose is arranged in an S-shaped mode for subsequent detection, the overall detection range of the fire hose is shortened, the fire hose can be fully detected in a long enough detection length, and the authenticity of the fire hose detection result is greatly improved; the use condition of the subsequent fire hose after back and forth friction with different ground is simulated by replacing the environment simulation plate and the friction sleeve, the limitation of the fire hose detection in a single environment is changed, the quality of the fire hose is more comprehensively detected, and a more accurate wear resistance detection result is obtained.

Description

Technical Field

[0001] This invention relates to the field of fire hose testing, specifically to a fire hose inspection and testing device. Background Technology

[0002] Fire hoses are an essential component of firefighting and a commonly used firefighting tool. They are flexible hoses used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses have a rubber inner lining and an outer layer of woven linen. The quality of fire hoses directly affects the outcome of firefighting operations. Before leaving the factory, fire hoses must undergo a series of inspections and tests, including visual inspection, pressure testing, and strength testing, to ensure that they possess good properties such as abrasion resistance, compressive strength, and tensile strength, so that they can be better used in firefighting.

[0003] However, the current process of testing the abrasion resistance of fire hoses has the following problems: 1. Fire hoses are often used in different environments, but the inspection and testing of fire hoses are usually carried out in a single environment. The results of the test in a single environment cannot determine the actual test results of the fire hose, which directly leads to low authenticity and accuracy of the test results.

[0004] 2. Due to the excessive length of the fire hose, the fire hose is subject to certain limitations during inspection. It is not possible to inspect the fire hose comprehensively. At the same time, it is difficult for operators to observe the inspection results of the entire fire hose section. Often, multiple people are needed to observe the sections to obtain the inspection results.

[0005] Therefore, in order to solve the problems existing in the process of testing the abrasion resistance of fire hoses, the present invention provides a fire hose inspection and testing device. Summary of the Invention

[0006] This invention provides an inspection and testing device for fire hoses, including a test platform. Water outlet tanks and water storage frames are arranged diagonally on the left and right sides of the test platform. Two locking mechanisms corresponding to the water outlet tanks and water storage frames are provided on the upper part of the test platform. An environmental simulation unit is provided between the two locking mechanisms.

[0007] The environmental simulation unit includes a mounting base plate set on the upper part of the test bench. Threaded posts are installed at the four corners of the upper surface of the mounting base plate. A support plate is slidably fitted on the threaded posts that are directly opposite each other. Threaded blocks that are rotatably connected to the lower end face of the support plate are threaded onto the threaded posts. The environmental simulation plate overlaps the upper part of the support plates on the left and right sides. A placement frame is set on the upper part of the environmental simulation plate. The left and right ends of the placement frame are fixedly connected to the mounting base plate through inverted L-shaped plates. Multiple fixed guide posts with equal spacing from front to back are installed on the upper left and right sides of the placement frame. The fixed guide posts on the left and right sides are staggered. Friction sleeves are fitted on the outside of the fixed guide posts.

[0008] Both locking mechanisms are equipped with control rods at their lower ends. A connecting rod is hinged to the lower end of the control rod. A rotating disk is provided at the end of the connecting rod that is close to each other. The middle of the lower end face of the rotating disk is connected to the output shaft of the drive motor mounted on the upper end of the test platform. An eccentric elliptical groove is provided on the rotating disk. The end of the connecting rod away from the control rod is slidably disposed in the eccentric elliptical groove. Support members are symmetrically arranged at the front and rear ends of the rotating disk between the mounting base plate and the test platform.

[0009] When specifically testing fire hoses: First, the unfilled fire hose needs to be wound in an S-shape between the fixed guide posts, and the left and right ends of the fire hose are connected to the outlet tank and the water storage frame, respectively. Then, the inlet and outlet ends of the fire hose are locked and fixed using the locking mechanisms on both sides. Subsequently, the locking mechanisms on both sides are used to pull the fire hose back and forth. During this process, the fire hose rubs against the environmental simulation board and the friction sleeve. After the unfilled fire hose has rubbed a certain number of times, the locking mechanism on the left end of the fire hose is opened, and then water is filled into the fire hose through the outlet tank. After it is full of water, the locking mechanism on the left end of the fire hose is locked and fixed again. Then, the same method is used to make the full fire hose rub back and forth against the environmental simulation board and the friction sleeve. After the full fire hose has rubbed back and forth a certain number of times, observe whether there is any leakage in the fire hose, thereby judging the wear resistance of the fire hose.

[0010] In one embodiment, both the water outlet tank and the water storage frame are provided with adjustment plates on the side near the test platform. The adjustment plates are mounted on the upper part of the test platform via a mounting bracket. The locking mechanism includes a positive convex block slidably mounted on the upper part of the adjustment plate. The positive convex block has an arc-shaped groove. The adjustment plate has a sliding through groove that slidably connects to the lower end of the positive convex block. The lower end of the positive convex block is fixedly connected to the control rod after passing through the sliding through groove. Cylindrical guide rails are symmetrically mounted on the front and rear upper surfaces of the positive convex block. A sealing plate is mounted on the upper ends of the two cylindrical guide rails. An inverted convex block is slidably mounted between the cylindrical guide rails on the front and rear sides. An arc-shaped protrusion that matches the arc-shaped groove is mounted on the lower end surface of the inverted convex block. An electric slider that is fixedly connected to the upper end surface of the inverted convex block is mounted on the cylindrical guide rail.

[0011] In one embodiment, the support includes pulleys symmetrically arranged on the front and rear sides of a rotating disk. The rotating disk is connected to the pulleys on the front and rear sides via belt drive. The pulleys are connected to a fixed column rotatably mounted on the upper part of the test platform. A horizontal bevel gear located below the pulleys is sleeved on the fixed column. The horizontal bevel gear is fixedly fitted on the outer side of a circular sleeve. The inner ring wall of the circular sleeve is connected to the fixed column via a spline. A vertical bevel gear meshing with the horizontal bevel gear is symmetrically arranged on the side of the front and rear pulleys that is far away from each other. A cam is mounted on the end of the vertical bevel gear that is far away from the pulley via a rotating shaft. The end of the cam that is far away from the vertical bevel gear is rotatably connected to a vertical plate mounted on the upper part of the test platform. The lower end of the mounting base plate has symmetrically arranged adjustment grooves that are rotatably connected to the corresponding cams. The lower ends of the horizontal bevel gears on the front and rear sides are jointly provided with a movable plate that is slidably connected to the fixed column and the drive motor. The horizontal bevel gears are rotatably connected to the movable plate. The lower left end of the movable plate is connected to an electric push rod mounted on the upper part of the test platform.

[0012] In one embodiment, the lower ends of the left and right mounting brackets are each equipped with a sliding plate, which is slidably connected to a guide plate mounted on the upper end of the test bench. The upper ends of the left and right sliding plates on opposite sides in the front-back direction are each connected with a rod. The guide plate has several holes, and the rods are inserted into the corresponding holes. The connecting rod is a telescopic rod.

[0013] In one embodiment, the fixed guide posts are all threaded mounting posts, and the friction sleeve is threadedly fitted onto the outer ring surface of the threaded mounting post.

[0014] In one embodiment, alignment rods are installed at the four corners of the upper surface of the environmental simulation board, and alignment holes are provided on the placement frame to be inserted into the alignment rods.

[0015] In one embodiment, guide telescopic rods are connected between the four corners of the lower end face of the mounting base and the upper end face of the test platform.

[0016] In summary, the present invention has at least one of the following beneficial effects:

[0017] 1. This invention provides an inspection and testing device for fire hoses, which arranges the fire hoses in an S-shape for subsequent testing, shortening the overall testing range of the fire hoses while ensuring that the fire hoses can be fully tested with a sufficiently long testing length, thereby increasing the authenticity of the fire hose testing results to a greater extent.

[0018] 2. This invention provides an inspection and testing device for fire hoses. By simulating the application scenarios of fire hoses in real life, it can more realistically demonstrate the quality of fire hoses. By changing the environmental simulation plate and friction sleeve, it simulates the subsequent use of fire hoses after friction with different ground surfaces, and simulates the quality changes of fire hoses under different frictional resistances. This changes the limitations of testing fire hoses in a single environment, and provides a more comprehensive test of the quality of fire hoses, increasing the comparability of test results and thus obtaining more accurate abrasion resistance test results for fire hoses.

[0019] 3. This invention provides an inspection and testing device for fire hoses. By simulating the back-and-forth dragging of fire hoses in actual use, it simulates the radial and axial friction forces experienced by fire hoses in both filled and unfilled states. This realistically simulates the friction experienced by fire hoses during use, and provides a more accurate test result of the wear resistance of fire hoses, thereby evaluating the wear resistance of fire hoses during long-term use.

[0020] In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the inspection and testing equipment based on a fire hose provided in the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the environmental simulation unit of the present invention.

[0024] Figure 3 For the present invention Figure 2 A magnified structural diagram of region A in the middle.

[0025] Figure 4 This is a three-dimensional structural diagram of the environmental simulation board and tray of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the test platform, rotating disk, and support component of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the horizontal bevel gear and the vertical bevel gear of the present invention.

[0028] Figure 7 This is a three-dimensional structural diagram of the locking mechanism, sliding plate, and guide plate of the present invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the locking mechanism of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the cam, vertical plate, and mounting base plate of the present invention.

[0031] Reference numerals: 1. Test bench; 11. Locking mechanism; 111. Adjusting plate; 112. Mounting bracket; 113. Positive convex block; 114. Sliding through groove; 115. Control rod; 116. Cylindrical guide rail; 118. Inverted convex block; 119. Electric slider; 12. Environmental simulation unit; 121. Mounting base plate; 122. Threaded column; 123. Support plate; 124. Environmental simulation plate; 125. Alignment rod; 126. Alignment hole; 127. Placement frame; 128. Fixed guide column; 129. Friction sleeve; 131. 132. Connecting rod; 133. Rotating disc; 134. Drive motor; 135. Eccentric elliptical groove; 136. Pulley; 137. Belt; 138. Fixed column; 139. Horizontal bevel gear; 140. Circular sleeve; 141. Vertical bevel gear; 142. Cam; 143. Vertical plate; 144. Moving plate; 145. Electric push rod; 146. Slide plate; 147. Guide plate; 148. Insert rod; 149. Insertion hole; 150. Threaded block; 150. Guide telescopic rod; 2. Water outlet tank; 3. Water storage frame; 4. Fire hose. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Please see Figure 1 A fire hose inspection and testing device includes a test bench 1. Water outlet tanks 2 and water storage frames 3 are arranged diagonally on the left and right sides of the test bench 1. Two locking mechanisms 11 are provided on the upper end of the test bench 1, corresponding to the water outlet tanks 2 and water storage frames 3 respectively. An environmental simulation unit 12 is provided between the two locking mechanisms 11.

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The environmental simulation unit 12 includes a mounting base plate 121 disposed on the upper end of the test bench 1. Threaded posts 122 are installed at the four corners of the upper surface of the mounting base plate 121. A support plate 123 is slidably fitted onto the threaded posts 122 facing each other. Threaded blocks 149 are threadedly connected to the threaded posts 122 and rotatably connected to the lower surface of the support plate 123. An environmental simulation plate 124 overlaps the upper ends of the support plates 123 on the left and right sides. A placement frame 127 is disposed on the upper end of the environmental simulation plate 124. Both ends of the placement frame 127 are connected to the mounting base plate 121 via inverted L-shaped plates. The fixed connection is provided. Multiple fixed guide posts 128 are installed on the upper left and right sides of the frame 127, which are evenly distributed from front to back. The fixed guide posts 128 on the left and right sides are staggered. Friction sleeves 129 are sleeved on the outside of the fixed guide posts 128. Alignment rods 125 are installed at the four corners of the upper surface of the environmental simulation plate 124. Alignment holes 126 are opened on the frame 127 to be inserted into the alignment rods 125. The fixed guide posts 128 are threaded mounting posts, and the friction sleeves 129 are threadedly fitted onto the outer ring surface of the threaded mounting posts.

[0035] In practice: First, before inspecting the fire hose 4, a sufficiently long section needs to be randomly cut from the long-distance fire hose 4 and placed on the upper end of the placement frame 127. At the same time, the fire hose 4 is wound in an S-shape between the fixed guide posts 128. Then, the water inlet at the left end of the fire hose 4 is passed through the locking mechanism 11 on the left and connected to the water inlet pipe of the outlet tank 2. The water outlet at the right end of the fire hose 4 is passed through the locking mechanism 11 on the right and connected to the water outlet pipe. The water outlet end of the water outlet pipe is located inside the water storage frame 3. Both the water inlet and outlet pipes are flexible and extendable. The fire hoses 4 are arranged in an S-shape for subsequent testing. This shortens the overall testing range of the fire hoses 4 while ensuring that they have a sufficiently long testing length for subsequent testing, thus increasing the authenticity of the test results. Simultaneously, the environmental simulation board 124 slides through the placement frame 127 and comes into contact with the fire hoses 4 located on the frame 127. At this point, the simulated ground on the environmental simulation board 124 is a cement floor. By simulating the application scenario of the fire hoses 4 in real life, the quality of the fire hoses 4 can be more realistically demonstrated. This allows for better assessment during subsequent testing. Simultaneously, the left and right support plates 123 are moved downwards along the threaded post 122, and the corresponding rotating threaded blocks 149 are fixed there. The environmental simulation plate 124 moves downwards synchronously with the support plate 123 and gradually moves away from the placement frame 127. The alignment rod 125 also moves away from the corresponding alignment hole 126. Then, the environmental simulation plate 124 can be manually pulled out from the front of the support plate 123 and replaced with the environmental simulation plate 124 required for different simulation environments, such as an environmental simulation plate 124 with a gravel upper surface, an environmental simulation plate 124 with a soil upper surface, or an environmental simulation plate 124 with an asphalt pavement upper surface, etc., and replaced with a pair of After the environmental simulation board 124 is placed, it is placed on the upper end of the support plates 123 on both sides. Then, with the cooperation of the support plates 123 and the threaded blocks 149, the environmental simulation board 124 is moved upward along the threaded post 122 until it contacts the fire hose 4 after passing through the placement frame 127. During this process, the alignment rod 125 is gradually inserted into the alignment hole 126. Through the insertion of the alignment rod 125 and the alignment hole 126, the environmental simulation board 124 and the placement frame 127 are aligned, so that the environmental simulation board 124 moves upward stably and accurately and contacts the fire hose 4.The support plate 123 can be fixed by rotating the threaded block 149, thereby changing the distance between the environmental simulation plate 124 and the fire hose 4. As the distance between the environmental simulation plate 124 and the fire hose 4 decreases, the frictional resistance of the fire hose 4 under the environmental simulation plate 124 increases accordingly. This allows the fire hose 4 to experience different frictional resistances under the same simulated environment. By changing the frictional resistance of the fire hose 4, the wear resistance of the fire hose 4 can be further tested. Subsequently, comparative tests can be conducted on the fire hose 4 under various simulated environments. By changing the environmental simulation plate 124, the usage of the fire hose 4 after rubbing back and forth with different ground surfaces can be simulated, as well as the change in mass of the fire hose 4 under different frictional resistances. To overcome the limitations of testing fire hose 4 in a single environment, a more comprehensive approach is needed to assess the quality of fire hose 4, enrich the comparative analysis of test results, and thus obtain more accurate results. When the environmental simulation plate 124 is replaced, the friction sleeve 129 can be rotated and removed from the threaded mounting post. Subsequently, friction sleeves 129 with different friction coefficients can be replaced according to the replaced environmental simulation plate 124. The replaced friction sleeves 129 are then re-threaded onto the threaded mounting post. By replacing the friction sleeves 129, the uniformity between the friction sleeves 129 and the environmental simulation plate 124 is ensured, guaranteeing that the fire hose 4 receives uniform frictional force, which helps to increase the authenticity of the wear resistance test results of the fire hose 4.

[0036] Please see Figure 1 , Figure 7 and Figure 8 Both the water outlet tank 2 and the water storage frame 3 are equipped with adjustment plates 111 on the side near the test bench 1. The adjustment plates 111 are mounted on the upper end of the test bench 1 via mounting brackets 112. The locking mechanism 11 includes a positive convex block 113 slidably mounted on the upper end of the adjustment plate 111. The positive convex block 113 has an arc-shaped groove. The adjustment plate 111 has a sliding through groove 114 that slidably connects to the lower end of the positive convex block 113. The lower end of the positive convex block 113 passes through the sliding through groove 114. 4. The control rod 115 is fixedly connected to the front and rear upper surfaces of the positive convex block 113. Cylindrical guide rails 116 are symmetrically installed on the front and rear upper surfaces. The upper surfaces of the two cylindrical guide rails 116 are jointly installed with a sealing plate. The inverted convex block 118 is slidably installed between the cylindrical guide rails 116 on the front and rear sides. The lower surface of the inverted convex block 118 is equipped with an arc-shaped protrusion that matches the arc-shaped groove. An electric slider 119 is installed on the cylindrical guide rail 116 and is fixedly connected to the upper surface of the inverted convex block 118.

[0037] Please see Figure 1 , Figure 5 and Figure 7The lower ends of the two mounting brackets 112 on the left and right are each equipped with a sliding plate 145. The sliding plate 145 is slidably connected to the guide plate 146 installed on the upper end of the test bench 1. The upper ends of the sliding plates 145 on the left and right sides that are far apart in the front-back direction are each inserted with a rod 147. The guide plate 146 has several holes 148. The rod 147 is inserted and engaged with the corresponding hole 148.

[0038] Step 2: When placing the fire hose 4, the inlet at the left end of the fire hose 4 passes between the convex block 113 and the inverted convex block 118 located on the left side, and the outlet at the right end of the fire hose 4 passes between the convex block 113 and the inverted convex block 118 on the right side. The fire hose 4 overlaps the upper end of the convex block 113. After the fire hose 4 is placed, the inverted convex block 118 is moved downwards along the cylindrical guide rail 116 by the electric slider 119. During the movement, the arc-shaped protrusion squeezes the fire hose 4, making the squeezing force on the fire hose 4 more concentrated. This ensures that the arc-shaped protrusion can better squeeze the fire hose 4 into the arc-shaped groove and fit it. Through the cooperation between the arc-shaped protrusion and the arc-shaped groove, the left and right ends of the fire hose 4 can be better locked, increasing the stability of the fire hose 4 and the sealing of the fire hose 4 filled with water. This prevents water leakage when the fire hose 4 is pulled back and forth, thus achieving the sealing and locking of the left and right ends of the fire hose 4.

[0039] Please see Figure 1 , Figure 5 and Figure 7 Both locking mechanisms 11 are provided with control rods 115 at their lower ends. A connecting rod 131 is hinged to the lower end of the control rod 115. The connecting rod 131 is a telescopic rod and its length can be fixed. A rotating disk 132 is provided at one end of the connecting rod 131 that is close to each other. The middle of the lower end face of the rotating disk 132 is connected to the output shaft of the drive motor 133 installed on the upper end of the test bench 1. An eccentric elliptical groove 134 is provided on the rotating disk 132. The end of the connecting rod 131 away from the control rod 115 is slidably disposed in the eccentric elliptical groove 134. Support members are symmetrically provided at the front and rear ends of the rotating disk 132 between the mounting base plate 121 and the test bench 1.

[0040] Step 3: In the unfilled state: After locking and fixing the left and right ends of the fire hose 4 in the unfilled state, the drive motor 133 drives the rotating disk 132 to rotate. During the rotation of the rotating disk 132, the connecting rod 131 slides accordingly through the eccentric elliptical groove 134. The distance between the connecting rod 131 and the center of the rotating disk 132 changes with the rotation of the eccentric elliptical groove 134. When the eccentric elliptical groove 134 rotates to the position where it is furthest from the center of the rotating disk 132 and contacts the connecting rod 131 on the left, the connecting rod 131 on the right is just at the position where the eccentric elliptical groove 134 is closest to the center of the rotating disk 132. During this process, the connecting rod 131 on the left drives the corresponding positive convex block 113 and inverted convex block 118 to slide along the sliding groove 114 on the adjusting plate 111 away from the mounting base plate 121 through the control rod 115 at its left end. At the same time, the connecting rod 131 on the right drives the corresponding positive convex block 113 and inverted convex block 118 to slide along the sliding groove 114 on the adjusting plate 111 away from the mounting base plate 121 through its right end. The control lever 115 drives the corresponding positive convex block 113 and inverted convex block 118 to slide along the sliding groove 114 on the adjusting plate 111 towards the mounting base plate 121, thereby enabling the positive convex blocks 113 and inverted convex blocks 118 on both sides to move synchronously along the sliding groove 114 in the same direction. When the rotating disc 132 rotates continuously, with the cooperation between the eccentric elliptical groove 134, the connecting rod 131 and the control lever 115, the positive convex blocks 113 and inverted convex blocks 118 on both sides drive the left and right ends of the fire hose 4 to move back and forth in the same direction. During the continuous back and forth pulling of the fire hose 4, the fire hose 4 continuously rubs against the environmental simulation plate 124 with the cooperation of the fixed guide post 128. At the same time, the contact point between the fire hose 4 and the fixed guide post 128 continuously rubs against the friction sleeve 129. After the fire hose 4 has rubbed back and forth a certain number of times, the pulling stops.

[0041] Step 4: In the water-filled state: After the fire hose 4 is rubbed a certain number of times in the unfilled state, the electric slider 119 on the left side drives the corresponding inverted convex block 118 to move upward along the cylindrical guide rail 116 away from the fire hose 4. At this time, the locking mechanism 11 on the right side is still locked at the right end of the fire hose 4. Then, water is automatically filled into the fire hose 4 through the outlet tank 2. When the fire hose 4 is full of water, the electric slider 119 on the left side drives the corresponding inverted convex block 118 to move downward along the cylindrical guide rail 116 again, and gradually squeezes the water-filled fire hose 4 until it is pressed against the positive convex block 113, thereby sealing the left end of the water-filled fire hose 4. Then, the outlet tank 2 stops discharging water, and then the drive motor 133 drives the rotating disk 132 to rotate again. The third step uses the same method, allowing the locking mechanisms 11 on both sides to simultaneously clamp the two ends of the water-filled fire hose 4 and pull them back and forth in the same direction. While the water-filled fire hose 4 is being pulled back and forth, it continuously rubs against the environmental simulation plate 124 and the friction sleeve 129. After the fire hose 4 has rubbed back and forth a certain number of times, the fire hose 4 is observed again to see if there is any leakage, thereby further judging the wear resistance of the fire hose 4. By dragging the fire hose 4 back and forth, the radial and axial friction forces on the fire hose 4 in the water-filled and water-free states are simulated, realistically simulating the friction situation of the fire hose 4 during use, and more realistically obtaining the test results of the wear resistance of the fire hose 4, thereby evaluating the wear resistance of the fire hose 4 during long-term use.

[0042] Before reciprocating the movement of the fire hose 4 (whether it is empty or full of water), first pull out the insert rod 147 from the insertion hole 148. Then, the mounting bracket 112 and the corresponding locking mechanism 11 can slide along the guide plate 146 via the sliding plate 145. The sliding positions of the left and right sliding plates 145 can be different or the same. After the sliding plate 145 moves the locking mechanism 11 and the fire hose 4 it holds to a suitable position along the guide plate 146, the sliding plate 145 is fixed to the upper end of the guide plate 146 again by engaging the insert rod 147 with the insertion hole 148. When the distance between rod 115 and rotating disk 132 changes, connecting rod 131 extends and retracts synchronously. Then the length of connecting rod 131 is fixed to ensure that rotating disk 132 can always drive control rod 115 and locking mechanism 11 to move accordingly through connecting rod 131. By changing the angle between locking mechanism 11 and the end of fire hose 4 held by it and fixed guide post 128, fire hose 4 is pulled at different angles, further increasing the frictional contact area between fire hose 4 and environmental simulation plate 124 and friction sleeve 129, and more comprehensively testing the wear resistance of fire hose 4.

[0043] Please see Figure 1 , Figure 5 , Figure 6 and Figure 9 The support includes pulleys 135 symmetrically arranged on the front and rear sides of the rotating disk 132. The rotating disk 132 and the pulleys 135 on the front and rear sides are connected by a belt 136. The pulleys 135 are connected to a fixed column 137 rotatably mounted on the upper end of the test bench 1. A horizontal bevel gear 138 located below the pulleys 135 is sleeved on the fixed column 137. The horizontal bevel gear 138 is fixedly fitted on the outside of a circular sleeve 139. The inner ring wall of the circular sleeve 139 is splined to the fixed column 137. A vertical bevel gear 140 is symmetrically arranged on the side of the front and rear pulleys 135 that is away from each other, meshing with the horizontal bevel gear 138. The end of the vertical bevel gear 140 away from the pulleys 135 is open to the outside of the test bench 135. A cam 141 is mounted on the rotating shaft. The end of the cam 141 away from the vertical bevel gear 140 is rotatably connected to the vertical plate 142 mounted on the upper end of the test bench 1. The lower end of the mounting base plate 121 is symmetrically provided with adjustment grooves that are rotatably connected to the corresponding cam 141. The lower ends of the horizontal bevel gears 138 on both the front and rear sides are provided with a movable plate 143 that is slidably connected to the fixed column 137 and the drive motor 133. The horizontal bevel gears 138 and the movable plate 143 are rotatably connected. The lower left end of the movable plate 143 is connected to the electric push rod 144 mounted on the upper end of the test bench 1. The four corners of the lower end of the mounting base plate 121 are connected to the upper end of the test bench 1 with guide telescopic rods 150.

[0044] When the drive motor 133 stops working, the moving plate 143 can be pushed upward along the fixed column 137 by the electric push rod 144. The moving plate 143 drives the horizontal bevel gears 138 on both sides to move upward along the fixed column 137 and mesh with the corresponding vertical bevel gears 140. The horizontal bevel gears 138 gradually engage with the splines on the fixed column 137 through the circular sleeve 139. Then the drive motor 133 starts working again, and the rotating disc 132 drives the pulleys 135 on both sides to rotate synchronously with the fixed column 137 through the belt 136. The fire hose 4, whether empty or full of water, is pulled back and forth. At this time, the horizontal bevel gears 138 can rotate synchronously with the fixed column 137, and the vertical bevel gears 140 mesh with the horizontal bevel gears 138. The vertical bevel gear 140 rotates synchronously with the vertical bevel gear 140, which drives the corresponding cam 141 to rotate via the rotating shaft. During the rotation of the cam 141, it remains connected to the adjusting groove. As the cam 141 moves the mounting base 121 up and down, the guide telescopic rod 150 provides guidance and support to the mounting base 121, ensuring its stability during the testing of the fire hose 4's abrasion resistance. This prevents the mounting base 121 from shaking and affecting the normal testing of the fire hose 4. Consequently, the distance between the mounting base 121 and the test platform continuously changes with the rotation of the cam 141, thus achieving the up-and-down reciprocating movement of the mounting base 121. Simultaneously, the support plate 123, the environmental simulation plate 124, and the placement frame... 127 moves up and down synchronously with the mounting base plate 121, while the fire hose 4 remains in its initial horizontal state under the clamping of the two locking mechanisms 11. At this time, the fire hose 4 rotates at a certain angle while being pulled back and forth, allowing the friction sleeve 129 to rub the fire hose 4 at different positions, changing the contact position between the friction sleeve 129 and the fire hose 4. Subsequent observation of the water-filled fire hose 4 reveals any leakage, thus providing a more comprehensive test of the fire hose 4's wear resistance, moving beyond limited local friction testing. It should be noted that it is optional to use the electric push rod 144 to drive the horizontal bevel gear 138 to mesh and rotate with the vertical bevel gear 140. If this is necessary, the left... While the fire hose 4 is pulled back and forth to the right and then back and forth to the left and right, the mounting base plate 121 moves up and down. Before the drive motor 133 starts working, the electric push rod 144 drives the moving plate 143 to move the horizontal bevel gears 138 on both sides down along the corresponding fixed column 137 in sync. This causes the horizontal bevel gears 138 to move away from the vertical bevel gear 140 and reset. At this time, the cam 141 is in a stationary state, and the mounting base plate 121 no longer moves up and down. Only the locking mechanisms 11 on both sides move back and forth to the left and right. Whether the fire hose 4 moves back and forth to the left and right or the mounting base plate 121 moves up and down to the right, the number of frictions needs to be recorded for subsequent comparison and observation, so as to obtain more accurate wear resistance test results.

[0045] Step 5: If the fire hose 4 leaks after friction, the simulated environment of the fire hose 4 test and the number of frictions before and after filling with water need to be recorded. This data is the extreme value of the fire hose 4's abrasion resistance. If the fire hose 4 does not leak after a certain number of frictions, it indicates that the fire hose 4 has good abrasion resistance. Subsequently, the limit friction value of the fire hose 4 can be detected by increasing the number of frictions in the unfilled and filled states and observing the leakage. The number of frictions in the unfilled and filled states can be the same or different, and the number of frictions can be increased or decreased sequentially. However, it is necessary for relevant operators to record and observe the abrasion resistance of the fire hose 4 under different numbers of frictions, and record the condition of the fire hose 4 after each certain number of frictions in real time to obtain accurate experimental results.

[0046] Step 6: After the fire hose 4 has been tested, the electric sliders 119 on both sides will simultaneously drive the corresponding inverted convex blocks 118 to move upward along the cylindrical guide rail 116 until they are far away from the fire hose 4 and reset. This will allow the water inside the fire hose 4 to smoothly enter the water storage frame 3 through the outlet pipe at the right end of the fire hose 4. Then, the connections between the left and right ends of the fire hose 4 and the inlet and outlet pipes can be loosened respectively. The fire hose 4 can then be removed from the placement frame 127. The abrasion resistance of the fire hose 4 can be tested in the same way.

[0047] In the description of this invention, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A testing and inspection device for fire hoses, comprising a test platform (1), wherein water outlet tanks (2) and water storage frames (3) are arranged diagonally on the left and right sides of the test platform (1), characterized in that: The test bench (1) is provided with two locking mechanisms (11) corresponding to the water outlet tank (2) and the water storage frame (3) respectively, and an environmental simulation unit (12) is provided between the two locking mechanisms (11); The environmental simulation unit (12) includes a mounting base plate (121) set on the upper end of the test bench (1). Threaded posts (122) are installed at the four corners of the upper surface of the mounting base plate (121). A support plate (123) is slidably fitted on the threaded posts (122) facing each other. Threaded blocks (149) that are rotatably connected to the lower end of the support plate (123) are threaded onto the threaded posts (122). The environmental simulation plate (124) overlaps the upper ends of the support plates (123) on the left and right sides. The simulation board (124) is provided with a placement frame (127) at the upper end. The left and right ends of the placement frame (127) are fixedly connected to the mounting base plate (121) through inverted L-shaped plates. Multiple fixed guide columns (128) are installed on the left and right sides of the upper end of the placement frame (127) at equal intervals from front to back. The fixed guide column (128) on the left side and the fixed guide column (128) on the right side are staggered. Friction sleeves (129) are sleeved on the outside of the fixed guide column (128). The lower ends of the two locking mechanisms (11) are provided with control rods (115), and the lower ends of the control rods (115) are hinged with connecting rods (131). The end of the connecting rods (131) that is close to each other is provided with a rotating disk (132). The middle part of the lower end face of the rotating disk (132) is connected to the output shaft of the drive motor (133) installed on the upper end of the test bench (1). An eccentric elliptical groove (134) is provided on the rotating disk (132). The end of the connecting rod (131) that is away from the control rods (115) is slidably disposed in the eccentric elliptical groove (134). Support members located between the mounting base plate (121) and the test bench (1) are symmetrically provided at the front and rear ends of the rotating disk (132). The unfilled fire hose (4) is wound in an S-shape between the fixed guide posts (128), and the left and right ends of the fire hose (4) are connected to the outlet tank (2) and the water storage frame (3) respectively. Then, the inlet and outlet ends of the fire hose (4) are locked and fixed by the locking mechanisms (11) on the left and right sides. Subsequently, the locking mechanisms (11) on the left and right sides pull the fire hose (4) to move back and forth. The fire hose (4) rubs against the environmental simulation board (124) and the friction sleeve (129). When the unfilled fire hose (4) rubs against a certain surface, the friction is completed. After a certain number of times, open the locking mechanism (11) at the left end of the fire hose (4), and then fill the fire hose (4) with water through the water tank (2). After it is full of water, the locking mechanism (11) at the left end of the fire hose (4) is locked and fixed again. Then, the fire hose (4) filled with water is rubbed back and forth with the environmental simulation plate (124) and the friction sleeve (129) in the same way. After rubbing the fire hose (4) filled with water back and forth a certain number of times, observe whether there is any leakage in the fire hose (4) at this time, so as to judge the wear resistance of the fire hose (4).

2. The inspection and testing equipment for fire hoses according to claim 1, characterized in that: Both the water outlet tank (2) and the water storage frame (3) are equipped with adjustment plates (111) on the side near the test bench (1). The adjustment plates (111) are mounted on the upper end of the test bench (1) via mounting brackets (112). The locking mechanism (11) includes a positive convex block (113) slidably mounted on the upper end of the adjustment plate (111). The positive convex block (113) has an arc-shaped groove. The adjustment plate (111) has a sliding through groove (114) slidably connected to the lower end of the positive convex block (113). The lower end of the positive convex block (113) passes through the sliding through groove. (114) is then fixedly connected to the control rod (115). Cylindrical guide rails (116) are symmetrically installed on the front and rear upper surfaces of the positive convex block (113). A sealing plate is installed on the upper end of the two cylindrical guide rails (116). An inverted convex block (118) is slidably installed between the cylindrical guide rails (116) on the front and rear sides. An arc-shaped protrusion that matches the arc-shaped groove is installed on the lower end surface of the inverted convex block (118). An electric slider (119) that is fixedly connected to the upper end surface of the inverted convex block (118) is installed on the cylindrical guide rail (116).

3. The inspection and testing equipment for fire hoses according to claim 1, characterized in that: The support includes pulleys (135) symmetrically arranged on the front and rear sides of the rotating disk (132). The rotating disk (132) and the pulleys (135) on the front and rear sides are connected by a belt (136). The pulleys (135) are connected to a fixed column (137) rotatably mounted on the upper end of the test bench (1). A horizontal bevel gear (138) located below the pulleys (135) is sleeved on the fixed column (137). The horizontal bevel gear (138) is fixedly fitted on the outside of a circular sleeve (139). The inner ring wall of the circular sleeve (139) is connected to the fixed column (137) by a spline. A vertical bevel gear (140) is symmetrically arranged on the side of the front and rear pulleys (135) that is far apart from each other, meshing with the horizontal bevel gear (138). A cam (141) is mounted on the end of the straight bevel gear (140) away from the pulley (135) via a rotating shaft. The end of the cam (141) away from the vertical bevel gear (140) is rotatably connected to the vertical plate (142) mounted on the upper end of the test bench (1). The lower end of the mounting base plate (121) is symmetrically provided with adjustment grooves that are rotatably connected to the corresponding cams (141). The lower ends of the horizontal bevel gears (138) on both the front and rear sides are provided with a moving plate (143) that is slidably connected to the fixed column (137) and the drive motor (133). The horizontal bevel gears (138) are rotatably connected to the moving plate (143). The lower left end of the moving plate (143) is connected to the electric push rod (144) mounted on the upper end of the test bench (1).

4. The inspection and testing equipment for fire hoses according to claim 2, characterized in that: The lower ends of the two mounting brackets (112) on the left and right are equipped with sliding plates (145). The sliding plates (145) are slidably connected to the guide plate (146) installed on the upper end of the test bench (1). The upper ends of the sliding plates (145) on the left and right sides that are far apart in the front-back direction are each connected with a plug rod (147). The guide plate (146) has several holes (148). The plug rod (147) is inserted and engaged with the corresponding hole (148). The connecting rod (131) is an automatic telescopic rod.

5. The inspection and testing equipment for fire hoses according to claim 1, characterized in that: All the fixed guide posts (128) are threaded mounting posts, and the friction sleeve (129) is threaded onto the outer ring surface of the threaded mounting post.

6. The inspection and testing equipment for fire hoses according to claim 1, characterized in that: Alignment rods (125) are installed at the four corners of the upper surface of the environmental simulation board (124), and alignment holes (126) are opened on the placement frame (127) to be inserted into the alignment rods (125).

7. The inspection and testing equipment for fire hoses according to claim 1, characterized in that: Guide telescopic rods (150) are connected between the four corners of the lower end face of the mounting base plate (121) and the upper end face of the test bench (1).

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