A fire cable detection apparatus

Abstract

The application relates to the technical field of fire-fighting cable detection, in particular to a fire-fighting cable detection device which comprises a box body, stretching cavities, first guide rods, a burner and a clamping mechanism. Stretching cavities are arranged on the left and right sides of the inner cavity of the box body. The number of the first guide rods is eight, and the eight first guide rods are arranged at the four corners of the inner cavities of the two stretching cavities. The burner is arranged at the bottom end of the inner cavity of the box body. The clamping mechanism is slidably sleeved on the outer wall of the first guide rod. The device can not only detect the fire resistance and flame retardance, but also simulate the damage of the object impact on the cable outer skin and internal structure in the fire scene. Meanwhile, the cable tension change in the fire scene is simulated and detected, the tension abnormality caused by factors such as thermal expansion and cold shrinkage and structure deformation is found in time, and problems such as internal conductor fracture, poor contact and outer skin rupture are prevented, so that the stable power transmission of the fire-fighting cable in the emergency such as fire is effectively ensured, and the normal operation of the fire-fighting equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire-fighting cable detection, in particular to a fire-fighting cable detection device. BACKGROUND

[0002] As a crucial component of the fire-fighting system, fire-fighting cable undertakes the key task of ensuring stable power transmission and normal operation of fire-fighting equipment in emergency situations such as fire, and has unique performance characteristics, such as high fire resistance, which can maintain normal power supply of fire-fighting facilities under high-temperature flame environment within a specified time; good flame retardance, which can prevent fire from spreading along the cable and reduce fire loss; and low-smoke and halogen-free characteristics, which produce less smoke and no toxic halogen elements during combustion, reducing the harm to personnel escape and fire rescue. These characteristics make fire-fighting cable widely used in fire-fighting systems of various buildings and industrial sites.

[0003] In the production and processing process of fire-fighting cable, it is necessary to detect its fire resistance and flame retardance. Fire resistance detection can ensure that the cable can withstand high-temperature flame without losing power transmission capability within a specified time when a fire occurs, ensuring the continuous operation of fire-fighting equipment such as fire alarm systems and fire extinguishing systems. Flame retardance detection can verify that the cable can effectively prevent fire from spreading when affected by a fire source, preventing the fire from spreading and gaining valuable time for personnel evacuation and fire rescue.

[0004] However, the existing fire-fighting cable detection device has many shortcomings and deficiencies. On the one hand, the existing detection device mostly only detects the fire resistance and flame retardance of fire-fighting cable, with single detection items. In actual fire scenes, fire-fighting cable not only suffers from flame burning, but also may be hit by various objects. For example, when a fire occurs, the building structure may deform or collapse due to high temperature, and falling burning objects and collapsed building materials may hit the fire-fighting cable. If the cable's outer skin is damaged under impact, it may cause electrical faults such as short circuit and leakage, affecting the normal operation of fire-fighting equipment, and even making the cable a channel for fire spread, exacerbating the spread of fire. However, the existing detection device cannot simulate such impact conditions and cannot comprehensively evaluate the performance of the cable in complex fire environments.

[0005] On the other hand, the existing detection device does not consider the change of fire-fighting cable tension in fire scenes. High temperature in fire scenes may cause thermal expansion and contraction of cable materials, and deformation or collapse of building structures may also exert additional tension or pressure on the cable, thereby changing its tension. Tension changes may cause internal conductor breakage or poor contact, affecting power transmission, and excessive tension may also cause the cable outer skin to rupture, further increasing the risk of electrical faults and fire spread. However, the existing detection device lacks monitoring of cable tension changes and cannot timely discover problems caused by tension changes. SUMMARY

[0006] The present application aims to provide a fire cable detection device to solve the problem of single detection item in the prior art.

[0007] To achieve the above object, the present application provides the following technical solution: a fire cable detection device, comprising: a box body, a stretching cavity, a first guide rod, a burner, a clamping mechanism, a moving assembly, a pressure sensor, a fire cable, a collision simulation mechanism and a power transmission monitoring assembly, the left and right sides of the inner cavity of the box body are provided with stretching cavities, the number of the first guide rods is eight, the four corners of the inner cavities of the two stretching cavities are respectively provided with eight first guide rods, the burner is arranged at the bottom end of the inner cavity of the box body, the clamping mechanism is slidably sleeved on the outer wall of the first guide rod, the moving assembly is arranged in the inner cavity of one of the stretching cavities, the moving assembly is used to drive the clamping mechanism to move, the pressure sensor is arranged in the inner cavity of one of the stretching cavities, the pressure sensor is in contact with the inner side of the outer wall of one of the clamping mechanisms, the outer walls of the left and right sides of the fire cable respectively penetrate the inner cavities of the two clamping mechanisms, the clamping mechanism can clamp and fix the fire cable, the collision simulation mechanism is arranged in the inner cavity of the box body, the collision simulation mechanism is used to impact the fire cable, the power transmission monitoring assembly is arranged at the left and right ends of the fire cable, and the power transmission monitoring assembly and the fire cable are electrically connected, the power transmission monitoring assembly is used to monitor the power transmission condition of the fire cable.

[0008] Preferably, the clamping mechanism comprises: a mounting plate, a clamping assembly and a driving assembly, the mounting plate is slidably embedded in the inner cavity of the stretching cavity, the four corners of the two mounting plates are respectively slidably sleeved on the outer walls of the eight first guide rods, the outer sides of the mounting plates are respectively provided with first sliding grooves, the clamping assembly is arranged on the outer side of the mounting plate, the clamping assembly can clamp and fix the fire cable, the driving assembly is arranged on the outer side of the mounting plate, and the driving assembly can drive the clamping assembly to move.

[0009] Preferably, the clamping assembly comprises: a second guide rod, a first sliding block and a clamping block, the two ends of the second guide rod are respectively arranged on the two sides of the inner cavity of the first sliding groove, the first sliding block is slidably embedded in the inner cavity of the first sliding groove, the first sliding block is slidably sleeved on the outer wall of the second guide rod, the inner side of the clamping block is arranged on the outer side of the first sliding block, and four clamping blocks are matched.

[0010] Preferably, the driving assembly comprises four rotating rods, a gear, a worm wheel and a worm, the inner ends of the four rotating rods are rotatably arranged on the four sides of the outer side of the mounting plate, the gear is sleeved on the outer wall of the rotating rod and locked, the gear is engaged with the clamping block, the worm wheel is rotatably arranged on the outer side of the mounting plate, the inner wall of the worm wheel is equidistantly provided with a plurality of teeth along the circumference, the gear is engaged with the teeth, and the outer wall of the worm is rotatably arranged on the outer side of the mounting plate.

[0011] Preferably, the collision simulation mechanism comprises a limiting assembly, a knocking assembly and a knocking force adjusting assembly, the limiting assembly is arranged in the inner cavity of the box body, the knocking assembly is arranged in the inner cavity of the limiting assembly, and the knocking force adjusting assembly is arranged on the outer wall of the knocking assembly.

[0012] Preferably, the knocking assembly comprises a lifting cylinder, a knocking rod, a supporting rod, a roller, a driving cylinder and a rotating assembly, the lifting cylinder is slidably embedded in the inner cavity of the limiting assembly, the lifting cylinder can be limited by the limiting assembly to prevent rotation, the knocking rod is arranged at the bottom end of the lifting cylinder, the outer wall of the knocking rod is in contact with the outer wall of the fire-fighting cable and the positions correspond, the supporting rod is arranged on the left and right sides of the inner cavity of the lifting cylinder, the roller is rotatably sleeved on the outer wall of the supporting rod, the driving cylinder is rotatably embedded in the inner cavity of the lifting cylinder, and the rotating assembly is arranged at the top end of the driving cylinder.

[0013] Preferably, the knocking force adjusting assembly comprises a spring, a pressing plate, a screw rod and a rotating cylinder, the bottom end of the spring is clamped to the top end of the lifting cylinder, the top end of the spring is clamped to the bottom end of the pressing plate, the top ends of the two screw rods are arranged on the left and right sides of the inner cavity of the box body, the two rotating cylinders are rotatably arranged on the left and right sides of the pressing plate, and the rotating cylinders are screwed on the outer wall of the screw rod.

[0014] Preferably, the rotating assembly drives the driving cylinder to rotate, the supporting rod is pushed to make the lifting cylinder move up through the cooperation of the supporting rod and the roller, the spring is compressed, the lifting cylinder moves down when the spring resets, the up-down reciprocating motion of the knocking rod is realized, and the cable is continuously impacted.

[0015] Preferably, the rotating cylinder is rotated, the rotating cylinder drives the pressing plate to move up and down through the cooperation of the rotating cylinder and the screw rod, the compression amount of the spring is changed, the greater the compression amount of the spring is, the greater the impact force of the knocking rod when falling is, and different intensity object impacts are simulated.

[0016] The fire-fighting cable detection device has the beneficial effects that:

[0017] 1、The present application can promote the rotation of the worm gear by the rotating worm, the rotation of the gear can promote the sliding of the clamping block along the inner cavity of the first sliding groove, so that the fire-fighting cable can be clamped and fixed by the cooperation between the clamping blocks, and the installation plate can be moved by the moving assembly, so as to adjust the tension of the fire-fighting cable, and the tension of the cable can be monitored in real time by the extrusion of the installation plate on the pressure sensor.

[0018] 2、The present application can burn the fire-fighting cable by the burner, so as to simulate the burning of the fire-fighting cable by the flame of the fire scene, the driving cylinder is rotated by the rotating assembly, the lifting cylinder drives the knocking rod to reciprocate up and down by the cooperation between the supporting rod and the roller, so that the knocking rod can knock the fire-fighting cable by reciprocating up and down, simulate the impact of the fire scene on the fire-fighting cable, the pressure plate can be moved up and down by the cooperation between the rotating drum and the screw, so as to adjust the extrusion degree of the spring, and then the knocking force of the knocking rod on the fire-fighting cable can be adjusted, the power transmission monitoring assembly can monitor the power transmission of the fire-fighting cable in real time.

[0019] 3、The device can more comprehensively and truly simulate the actual working condition of the fire-fighting cable in complex fire environment, not only detect the fire resistance and flame retardance, but also simulate the damage of the object impact on the cable outer skin and internal structure in the fire scene, evaluate the electrical performance and fire spread resistance of the cable under impact; At the same time, the change of cable tension in the fire scene is simulated and detected, the tension anomaly caused by factors such as thermal expansion and cold contraction, structure deformation is found in time, the problems such as internal conductor fracture, poor contact and outer skin rupture are prevented, so as to effectively guarantee the stable power transmission of the fire-fighting cable in emergency such as fire, ensure the normal operation of the fire-fighting equipment, reduce the risk of electrical failure and fire spread, significantly improve the reliability and safety of the fire-fighting system. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present application;

[0021] Figure 2 It is a front view of the present application;

[0022] Figure 3 It is an explosion diagram of the present application;

[0023] Figure 4 It is a structural schematic diagram of the clamping mechanism;

[0024] Figure 5 It is a structural schematic diagram of the knocking mechanism;

[0025] Figure 6 It is an explosion diagram of the clamping mechanism;

[0026] Figure 7 isometric view of the knocking mechanism;

[0027] Figure 8 isometric view of the moving assembly;

[0028] Figure 9 is Figure 3 enlarged view of A of

[0029] Figure 10 is Figure 6 enlarged view of B of

[0030] Figure 11 is Figure 7 enlarged view of C of

[0031] Figure 12 is Figure 7 enlarged view of D of

[0032] In the figure: 1, box; 2, stretching cavity; 3, first guide rod; 4, burner; 5, clamping mechanism; 51, mounting plate; 52, first sliding groove; 53, second guide rod; 54, first sliding block; 55, clamping block; 56, rotating rod; 57, gear; 58, worm gear; 59, tooth; 510, worm; 6, moving assembly; 61, forward and reverse screw; 62, moving block; 63, connecting rod; 7, pressure sensor; 8, fire-fighting cable; 9, collision simulation mechanism; 91, support plate; 92, positioning cylinder; 93, second sliding groove; 94, lifting cylinder; 95, second sliding block; 96, knocking rod; 97, support rod; 98, roller; 99, driving cylinder; 910, connecting rod; 911, spring; 912, pressing plate; 913, motor; 914, screw; 915, rotating cylinder; 10, crocodile clip; 11, wire; 12, indicator light. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0034] Please refer to Figures 1-12The application provides a fire-fighting cable detection device technical scheme, which comprises a box body 1, a stretching cavity 2, first guide rods 3, a burner 4, a clamping mechanism 5, a moving assembly 6, a pressure sensor 7, a fire-fighting cable 8, a collision simulation mechanism 9 and a power transmission monitoring assembly. The left and right sides of the inner cavity of the box body 1 are provided with the stretching cavities 2. The number of the first guide rods 3 is eight, and the eight first guide rods 3 are arranged at the four corners of the inner cavities of the two stretching cavities 2. The first guide rods 3 are used for supporting the mounting plate 51 and limiting the mounting plate 51. The burner 4 is arranged at the bottom end of the inner cavity of the box body 1. The burner 4 is a prior art, and will not be described in detail here. The burner 4 is used for spraying flame to burn the fire-fighting cable 8. The clamping mechanism 5 is slidably sleeved on the outer wall of the first guide rod 3. The clamping mechanism 5 is used for clamping the fire-fighting cable. The moving assembly 6 is arranged in the inner cavity of one of the stretching cavities 2. The moving assembly 6 is used for driving the clamping mechanism 5 to move. The pressure sensor 7 is arranged in the inner cavity of one of the stretching cavities 2. The pressure sensor 7 is in contact with the inner side of the outer wall of one of the clamping mechanisms 5. The pressure sensor 7 is a prior art, and will not be described in detail here. The pressure sensor 7 is used for monitoring the tension of the fire-fighting cable 8. The left and right sides of the outer wall of the fire-fighting cable 8 respectively penetrate the inner cavities of the two clamping mechanisms 5. The fire-fighting cable 8 can be clamped and fixed by the clamping mechanism 5. The fire-fighting cable 8 is a prior art, and will not be described in detail here. The collision simulation mechanism 9 is arranged in the inner cavity of the box body 1. The collision simulation mechanism 9 is used for knocking the fire-fighting cable 8. The power transmission monitoring assembly is arranged at the left and right ends of the fire-fighting cable 8 and is electrically connected with the fire-fighting cable 8. The power transmission monitoring assembly is used for monitoring the power transmission condition of the fire-fighting cable 8.

[0035] As a preferred solution, further, Figure 4 , Figure 6 and Figure 10As shown, the clamping mechanism 5 comprises: a mounting plate 51, a first sliding groove 52, a second guide rod 53, a first sliding block 54, a clamping block 55, a rotating rod 56, a gear 57, a worm wheel 58, a tooth 59 and a worm 510, the mounting plate 51 is slidably embedded in the inner cavity of the stretching cavity 2, the four corners of the two mounting plates 51 are slidably sleeved on the outer walls of the eight first guide rods 3 respectively, the outer four sides of the mounting plate 51 are provided with the first sliding groove 52, the two ends of the second guide rod 53 are arranged on the two sides of the inner cavity of the first sliding groove 52 respectively, the second guide rod 53 can prevent the first sliding block 54 from being separated from the inner cavity of the first sliding groove 52, the first sliding block 54 is slidably embedded in the inner cavity of the first sliding groove 52, the first sliding block 54 is slidably sleeved on the outer wall of the second guide rod 53, the inner side of the clamping block 55 is arranged on the outer side of the first sliding block 54, the four clamping blocks 55 are matched, the clamping block 55 is used for clamping the fire-fighting cable 8, the number of the rotating rod 56 is four, the inner ends of the four rotating rods 56 are rotatably arranged on the outer four sides of the mounting plate 51, the gear 57 is sleeved on the outer wall of the rotating rod 56 and locked, the gear 57 is engaged with the clamping block 55, the rotation of the gear 57 can drive the clamping block 55 to move, the worm wheel 58 is rotatably arranged on the outer side of the mounting plate 51, a plurality of teeth 59 are equidistantly arranged on the inner wall of the worm wheel 58 in the circumferential direction, the gear 57 is engaged with the tooth 59, the rotation of the worm wheel 58 can drive the gear 57 to rotate, and the outer wall of the worm 510 is rotatably arranged on the outer side of the mounting plate 51, the worm 510 is engaged with the worm wheel 58.

[0036] As a preferred solution, further, as Figure 5 、 Figure 7 、 Figure 11 and Figure 12As shown, the collision simulation mechanism 9 comprises: a limiting assembly, a lifting cylinder 94, a knocking rod 96, a support rod 97, a roller 98, a driving cylinder 99, a rotating assembly, a spring 911, a pressing plate 912, a screw rod 914 and a rotating cylinder 915, the limiting assembly is arranged in the inner cavity of the box body 1 and is used for supporting and limiting the lifting cylinder 94, the lifting cylinder 94 is slidably embedded in the inner cavity of the limiting assembly and can be limited by the limiting assembly to prevent rotation, the lifting cylinder 94 is used to drive the knocking rod 96 to reciprocate, the knocking rod 96 is arranged at the bottom end of the lifting cylinder 94, the outer wall of the knocking rod 96 is in contact with the outer wall of the fire-fighting cable 8 and the positions correspond, the knocking rod 96 is used to knock the fire-fighting cable 8, the number of the support rods 97 is two, the two support rods 97 are arranged on the left and right sides of the inner cavity of the lifting cylinder 94, the roller 98 is rotatably sleeved on the outer wall of the support rod 97, the driving cylinder 99 is rotatably embedded in the inner cavity of the lifting cylinder 94, the driving cylinder 99 rotates to drive the lifting cylinder 94 to reciprocate up and down by the cooperation between the support rod 97 and the roller 98, the rotating assembly is arranged at the top end of the driving cylinder 99, the driving cylinder 99 can be rotated by the rotating assembly, the bottom end of the spring 911 is clamped to the top end of the lifting cylinder 94, the spring 911 is a rotary spring, which is elastically deformed after being extruded or stretched by an external force and returns to the initial state after the external force is removed, and the spring 911 is used to push the lifting cylinder 94 to move downward, the top end of the spring 911 is clamped to the bottom end of the pressing plate 912, the pressing plate 912 is used to press the spring 911 to be elastically deformed, the number of the screw rods 914 is two, the top ends of the two screw rods 914 are arranged on the left and right sides of the inner cavity top end of the box body 1, the number of the rotating cylinders 915 is two, the two rotating cylinders 915 are rotatably arranged on the left and right sides of the pressing plate 912, the rotating cylinder 915 is screwed on the outer wall of the screw rod 914, and the rotating cylinder 915 rotates to drive the pressing plate 912 to move up and down in cooperation with the screw rod 914.

[0037] As a preferred solution, further as shown in Figure 1 , Figure 2 and Figure 3 , the power transmission monitoring assembly comprises: alligator clips 10, wires 11 and an indicator light 12, the number of the alligator clips 10 is two, the two alligator clips are clamped at the two ends of the fire-fighting cable 8 respectively, the wires 11 are arranged at the outer ends of the alligator clips 10, the wires 11 and the alligator clips 10 are electrically connected, one of the wires 11 is electrically connected with the power supply, the indicator light 12 is arranged at the right top end of the box body 1, and the other wire 11 is electrically connected with the indicator light 12.

[0038] As a preferred solution, further as shown in Figure 8As shown, the movable component 6 includes: a positive and negative lead screw 61, a movable block 62, and a connecting rod 63. The front and rear ends of the positive and negative lead screw 61 are rotatably disposed at the middle of the front and rear ends of the right side of the housing 1, respectively. There are two movable blocks 62, which are screwed to the front and rear sides of the outer wall of the positive and negative lead screw 61, respectively. There are two connecting rods 63, one end of which is rotatably disposed on the left side of the two movable blocks 62 through a pin, and the other end of which is rotatably disposed on the front and rear ends of the middle right side of the mounting plate 51 located on the right side through a pin, respectively.

[0039] As a preferred option, further improvements could be made, such as 7 and Figure 11 As shown, the limiting component includes: a support plate 91, a positioning cylinder 92, a second sliding groove 93, and a second slider 95. The left and right ends of the support plate 91 are respectively located on the top of the left and right sides of the inner cavity of the housing 1. The positioning cylinder 92 is located in the inner cavity of the support plate 91. The inner wall of the positioning cylinder 92 is provided with a plurality of second sliding grooves 93 at equal intervals along the circumference. The number of second sliders 95 is a plurality of them. The plurality of second sliders 95 are respectively arranged at equal intervals along the circumference on the outer wall of the lifting cylinder 94. The second sliders 95 are slidably embedded in the inner cavity of the second sliding groove 93.

[0040] As a preferred option, further, such as Figure 7 As shown, the rotating assembly includes a motor 913 and a connecting rod 910. The motor 913 is screwed to the top center of the housing 1. The top of the connecting rod 910 is locked to the output end of the motor 913 by a coupling. The bottom of the connecting rod 910 is located at the top of the drive cylinder 99. The pressure plate 912 is slidably sleeved on the outer wall of the connecting rod 910.

[0041] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0042] In use, the two ends of the fire-fighting cable 8 are respectively inserted into the inner cavity of the mounting plate 51 and inserted into the gap between the clamping blocks 55, the worm 510 is rotated, the rotation of the worm 510 can drive the worm gear 58 to rotate, the rotation of the worm gear 58 can drive the gear 57 to rotate, the rotation of the gear 57 can drive the clamping block 55 to slide along the inner cavity of the first sliding groove 52, until the two ends of the fire-fighting cable 8 are clamped and fixed by the clamping block 55, the lead screw 61 is rotated, the rotation of the lead screw 61 can drive the two moving blocks 62 to move outward along the outer wall of the lead screw 61, the movement of the moving block 62 can pull the mounting plate 51 on the right side to move to the right side through the connecting rod 63, the mounting plate 51 on the right side moves to the right side, which can pull the mounting plate 51 on the left side to move to the right side through the fire-fighting cable 8, so that the left mounting plate 51 can press the pressure sensor 7, and then the pressure sensor 7 can detect the pressing force applied by the left mounting plate 51, and then the tension state of the fire-fighting cable 8 can be reflected, until the fire-fighting cable 8 is adjusted to the appropriate tension, the external power supply is started, the power of the power supply is transmitted to the indicator light 12 through the alligator clip 10, the wire 11 and the fire-fighting cable 8, the indicator light 12 emits light, the burner 4 is started, the flame sprayed by the burner 4 can burn the fire-fighting cable 8, the motor 913 is started, the output end of the motor 913 rotates to drive the driving cylinder 99 to rotate through the connecting rod 910, the rotation of the driving cylinder 99 can drive the lifting cylinder 94 to move upward through the cooperation between the supporting rod 97 and the roller 98, and the spring 911 is elastically deformed, until the roller 98 is separated from the outer wall of the driving cylinder 99, and under the action of the elastic force of the spring 911, the lifting cylinder 94 drives the knocking rod 96 to move downward, so that the knocking rod 96 can knock the fire-fighting cable 8, and then the impact situation of the fire-fighting cable in the fire scene can be simulated, when the roller 98 is separated from the outer wall of the driving cylinder 99 on the back side, the supporting rod 97 drives the roller 98 to fall again to the outer wall of the driving cylinder 99, and then the above-mentioned action is repeated, so that the lifting cylinder 94 drives the knocking rod 96 to move up and down reciprocatingly, when it is necessary to adjust the knocking force of the knocking rod 96 on the fire-fighting cable 8, the rotating drum 915 is rotated, the rotating drum 915 is rotated and cooperated with the screw rod 914 to drive the pressing plate 912 to move up and down, so that the pressing degree of the spring 911 can be adjusted, and then the knocking force of the knocking rod 96 on the fire-fighting cable 8 can be adjusted, after a certain period of time, the tension state of the fire-fighting cable 8 can be reflected through the pressure sensor 7, the transmission situation of the power of the fire-fighting cable 8 can be reflected through the observation of whether the indicator light 12 emits light, and the fireproof performance of the fire-fighting cable 8 can be detected through the observation of the surface of the fire-fighting cable 8, the device can more comprehensively and truly simulate the actual working condition of the fire-fighting cable 8 in the complex fire environment, not only the fire resistance and the flame resistance of the fire-fighting cable 8 can be detected, but also the damage of the object impact on the cable outer skin and the internal structure in the fire scene can be simulated, and the electrical performance and the fire spreading resistance of the cable under the impact can be evaluated.Meanwhile, the cable tension change at the fire scene is simulated to timely find the tension abnormality caused by thermal expansion and cold shrinkage, structure deformation and other factors, prevent internal conductor breakage, poor contact and outer skin rupture and other problems, thereby effectively guaranteeing the stable power transmission of the fire-fighting cable under emergency conditions such as fire, ensuring the normal operation of the fire-fighting equipment, reducing the electrical failure and fire spreading risk, and significantly improving the reliability and safety of the fire-fighting system.

[0043] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and spirit of the application and that numerous modifications, changes, replacements, and adaptations can be made thereto by those skilled in the art without departing from the principles and spirit of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A fire detection cable arrangement, characterised in that, Include: Box (1), the inner cavity of the box (1) is provided with a stretching cavity (2) on the left and right sides; First guide rod (3), the number of the first guide rod (3) is eight, eight first guide rod (3) is respectively arranged in the inner cavity four corners of two stretching cavities (2); Burner (4), the burner (4) is arranged in the inner cavity bottom end of the box (1); Clamping mechanism (5), the clamping mechanism (5) is slidably sleeved on the outer wall of the first guide rod (3); Moving assembly (6), the moving assembly (6) is arranged in the inner cavity of one of the stretching cavities (2), and the moving assembly (6) is used for driving the clamping mechanism (5) to move; Pressure sensor (7), the pressure sensor (7) is arranged in the inner cavity of one of the stretching cavities (2), and the pressure sensor (7) and the inner side of the outer wall of one of the clamping mechanisms (5) are in contact; Fire-fighting cable (8), the outer wall of the fire-fighting cable (8) is respectively penetrated through the inner cavities of two clamping mechanisms (5), and the fire-fighting cable (8) can be clamped and fixed by the clamping mechanism (5); Collision simulation mechanism (9), the collision simulation mechanism (9) is arranged in the inner cavity of the box (1), and the collision simulation mechanism (9) is used for impacting the fire-fighting cable (8); Power transmission monitoring assembly, the power transmission monitoring assembly is arranged at the left and right ends of the fire-fighting cable (8), and the power transmission monitoring assembly and the fire-fighting cable (8) are electrically connected, and the power transmission monitoring assembly is used for monitoring the power transmission condition of the fire-fighting cable (8); The clamping mechanism (5) comprises: Mounting plate (51), the mounting plate (51) is slidably embedded in the inner cavity of the stretching cavity (2), the four corners of two mounting plates (51) are slidably sleeved on the outer wall of eight first guide rods (3), and the outer side of the mounting plate (51) is provided with a first sliding groove (52) on the four sides; Clamping assembly, the clamping assembly is arranged on the outer side of the mounting plate (51), and the fire-fighting cable can be clamped and fixed by the clamping assembly; Drive assembly, the drive assembly is arranged on the outer side of the mounting plate (51), and the drive assembly can drive the clamping assembly to move; The clamping assembly comprises: Second guide rod (53), the two ends of the second guide rod (53) are respectively arranged on the inner cavity of the first sliding groove (52); First sliding block (54), the first sliding block (54) is slidably embedded in the inner cavity of the first sliding groove (52), and the first sliding block (54) is slidably sleeved on the outer wall of the second guide rod (53); Clamping block (55), the inner side of the clamping block (55) is arranged on the outer side of the first sliding block (54), and four clamping blocks (55) are matched; The drive assembly comprises: Rotary rod (56), the number of the rotary rod (56) is four, and the inner ends of four rotary rods (56) are rotatably arranged on the four sides of the outer side of the mounting plate (51); Gear (57), the gear (57) is sleeved on the outer wall of the rotary rod (56) and locked, and the gear (57) is engaged with the clamping block (55); A worm wheel (58) is rotatably arranged outside the mounting plate (51), and a plurality of teeth (59) are equidistantly arranged on the inner wall of the worm wheel (58) in the circumferential direction, and the gear (57) and the teeth (59) are engaged; A worm (510) is rotatably arranged on the outer wall of the mounting plate (51), and the worm (510) and the worm wheel (58) are engaged.

2. A fire detection cable apparatus according to claim 1, wherein: The collision simulation mechanism (9) comprises: A limiting assembly is arranged in the inner cavity of the box body (1); A knocking assembly is arranged in the inner cavity of the limiting assembly; A knocking force adjusting assembly is arranged on the outer wall of the knocking assembly.

3. A fire detection cable apparatus as claimed in claim 2, wherein: The knocking assembly comprises: A lifting cylinder (94) is slidably embedded in the inner cavity of the limiting assembly, and the lifting cylinder (94) is limited by the limiting assembly to prevent rotation; A knocking rod (96) is arranged at the bottom end of the lifting cylinder (94), the outer wall of the knocking rod (96) is in contact with the outer wall of the fire-fighting cable (8), and the positions correspond; Two support rods (97) are arranged on the left and right sides of the inner cavity of the lifting cylinder (94); A roller (98) is rotatably sleeved on the outer wall of the support rod (97); A driving cylinder (99) is rotatably embedded in the inner cavity of the lifting cylinder (94); A rotating assembly is arranged at the top end of the driving cylinder (99), and the rotating assembly can drive the driving cylinder (99) to rotate.

4. A fire detection cable apparatus as claimed in claim 3, wherein: The knocking force adjusting assembly comprises: A spring (911) is connected at the top end of the lifting cylinder (94); A pressing plate (912) is connected at the top end of the spring (911); Two screw rods (914) are arranged at the left and right sides of the inner cavity of the box body (1); Two rotating cylinders (915) are rotatably arranged on the left and right sides of the pressing plate (912), and the rotating cylinders (915) are screwed on the outer wall of the screw rod (914).

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