Low-voltage cable flame-retardant treatment and detection equipment

Abstract

The utility model discloses a low -voltage cable flame -retardant processing and detection equipment relates to cable flame -retardant detection technical field, include: detection cabinet, be located detection cabinet upper surface dust absorption machine, glass cabinet door, spray fire device, auxiliary support device, the inside of detection cabinet is provided with detection mechanism, the utility model discloses a continuous, automatic detection of multiple cables is realized to the automation rotating detection mechanism that constitutes by motor, partition, fixed rod and the sleeve block, the function of this mechanism is: after completing one cable clamping, through control system drive rotating platform, with clamped cable moves to the next station, and will empty load station switch to the clamping position, until all stations full load, then under the closed environment, according to the procedure, the cable is in turn, automatic delivery to the spray fire device before completing detection. This design has solved the problem of traditional equipment single -time only detection single cable, and the low detection efficiency problem.

Description

Technical Field

[0001] This utility model relates to the field of cable flame retardant testing technology, specifically to a low-voltage cable flame retardant treatment and testing device. Background Technology

[0002] During the manufacturing process, cables undergo flame retardancy testing to ensure they can slow or prevent the spread of flames when exposed to a fire source, thereby reducing fire damage. Flame retardancy testing typically includes vertical burning tests, horizontal burning tests, bundled burning tests, and single-cable burning tests. For vertical flame retardancy testing, both ends of the cable to be tested are fixed to the testing equipment. The flame-spraying device on the equipment is then activated, igniting the cable's outer surface. The speed of flame spread, whether it extinguishes automatically, the amount of smoke, and whether there are any dripping particles are then observed and recorded. A test report is then generated based on the results.

[0003] However, existing testing equipment can only measure a single cable, resulting in low testing efficiency and a certain degree of randomness in the test results, which reduces the accuracy of the test results.

[0004] Meanwhile, on most testing equipment, fixing cable samples is achieved by manually tightening bolts or clamps, so each installation and removal of samples requires manual operation, which is time-consuming and labor-intensive.

[0005] In summary, it is necessary to develop a flame-retardant treatment and testing device for low-voltage cables to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is: a low-voltage cable flame-retardant treatment and testing device, comprising: a testing cabinet, a vacuum cleaner located on the upper surface of the testing cabinet, a glass cabinet door, a flame-spraying device, and an auxiliary support device. The testing cabinet contains a testing mechanism, which further comprises: A partition component, wherein the partition component is disposed on the inner surface of the testing cabinet, the partition component includes a partition plate; The pressing component is disposed on the upper surface of the partition plate, and the pressing component includes a pressing element; A dust collection component is disposed on the inner surface of the testing cabinet, and the dust collection component includes a dust collection nozzle.

[0007] Furthermore, the output end of a motor is fixedly connected to the center of the lower surface of the partition plate, and a fixing rod is installed at the center of the upper surface of the partition plate. A sleeve block is installed on the upper part of the outer surface of the fixing rod, and heat insulation baffles are installed on both sides of the sleeve block. The heat insulation baffles are made of ceramic fiber material and are used to block the interference of flames and high-temperature heat radiation on the cables of adjacent workstations, ensuring the independence of test conditions.

[0008] Furthermore, the fixing rod has a hollow interior design. This hollow design facilitates the flow of smoke, and the fixing rod is made of high-temperature resistant stainless steel, which offers high strength and moderate cost.

[0009] Furthermore, the motor is installed on the inner surface of the testing cabinet, and multiple sets of heat insulation baffles are provided.

[0010] Furthermore, a handle is mounted on the outer surface of the pressing component. The high-temperature section of the handle near the cable is made of 310S stainless steel to ensure structural strength. A grip handle is fitted and fixed to the upper part of the outer surface of the handle. The grip handle is made of high-temperature resistant and low thermal conductivity PEEK engineering plastic, providing a safe and heat-resistant grip point and facilitating the operator to apply force.

[0011] Furthermore, the pressing component includes a fixed ring plate, the outer surface of which has an inner groove, in which a first rubber plate is placed, and a rotating rod is fixedly connected to the inner surface of the fixed ring plate. The first rubber plate is made of fluororubber, which has good sealing performance.

[0012] Furthermore, a first magnetic block is installed on the inner wall of the fixing ring plate, and a second magnetic block is magnetically attracted to the first magnetic block. This magnetic attraction structure enables the rapid locking and releasing of the separation ring plate. A separation ring plate is installed on the outer surface of the second magnetic block, and a second rubber plate is installed on the outer surface of the separation ring plate. The second rubber plate is also made of fluororubber and works together with the first rubber plate to flexibly clamp and protect the cable sheath.

[0013] Furthermore, the handle is installed on the outer surface of the separation ring plate, and the number of pressing elements is set in multiple sets.

[0014] Furthermore, the side of the fixed ring plate away from the separating ring plate is fixedly connected to the side of the sleeve block near the separating ring plate, and the outer surface of the rotating rod is rotatably connected to the inner surface of the separating ring plate. This rotatable connection allows the separating ring plate to rotate around the rotating rod, realizing the opening and closing action.

[0015] Furthermore, a filter is provided above the suction nozzle, which contains a multi-stage filter element, including a high-efficiency filter element for blocking particulate matter and an activated carbon filter element for adsorbing toxic gases, and a suction pipe is installed on the upper surface of the filter.

[0016] Furthermore, the suction nozzle is mounted on the outer surface of the fixing rod, and its opening is designed with a wide opening to efficiently capture the smoke generated by combustion. The filter is mounted on the inner surface of the detection cabinet, and the filter is mounted on the top of the fixing rod. The end of the suction pipe away from the filter is connected to the air inlet of the vacuum cleaner. Together, they constitute an active smoke collection and purification system.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes an automated rotating inspection mechanism comprised of a motor, partition plate, fixing rod, and sleeve block to achieve continuous and automated inspection of multiple cables. The mechanism's function is as follows: after clamping one cable, the control system drives a rotating platform to move the clamped cable to the next station, switching the idle station to its clamping position until all stations are fully loaded. Subsequently, in a sealed environment, the cables are sequentially and automatically transported to the flame-spraying device for inspection. This design solves the problem of low inspection efficiency in traditional equipment, which can only inspect one cable at a time. It also avoids the problem of highly random test results due to small sample sizes, which fails to accurately reflect the uniformity of the entire batch of products. Furthermore, this mechanism integrates inspection and cooling, avoiding the equipment idle time caused by the traditional serial process where the previous cable must cool before disassembly and installation of the next cable.

[0018] 2. This utility model utilizes a magnetic quick-clamping fixture composed of a fixed ring plate, a separating ring plate, a rotating rod, and first and second magnetic blocks to achieve rapid cable fixing and release. The fixture functions as follows: the operator can open and close the fixture by applying force with the handle and lever; the magnetic attraction between the magnetic blocks achieves self-locking upon closure; and a fluororubber plate provides flexible clamping. This design solves the problems of cumbersome, time-consuming, and labor-intensive operation associated with traditional testing equipment that relies on manual bolt tightening for cable fixing. It also avoids errors caused by inconsistent clamping force due to varying operator strength, as well as the inefficiency and time-consuming nature of repeatedly rotating bolts, thus ensuring consistent clamping force.

[0019] 3. This utility model utilizes an active smoke collection and purification system comprised of a suction nozzle, filter, suction pipe, and vacuum cleaner to achieve immediate handling of toxic fumes during testing. The system functions as follows: activating simultaneously with flame detection, it creates negative pressure within the sealed testing cabinet, rapidly capturing the smoke generated during combustion at its source (the suction nozzle). This smoke is then guided through a hollow fixing rod and a multi-stage filter for cooling, dust removal, and adsorption purification, finally discharging the compliant gas. This design solves the safety hazard of toxic and harmful fumes accumulating and potentially leaking during flame-retardant testing in a confined space. It avoids the wasted time of waiting for the smoke to dissipate naturally or be passively discharged before opening the cabinet door after testing, and the health risk of operators accidentally opening the cabinet door and being exposed to a sudden surge of toxic fumes during this period. Attached Figure Description

[0020] Figure 1 This is the front view of this utility model; Figure 2This is a schematic diagram of the structure of the testing mechanism of this utility model; Figure 3 This is a schematic diagram of the pressing component of this utility model; Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a structural schematic diagram of the pressing component of this utility model; Figure 6 This is a schematic diagram of the structure of the fixing ring plate of this utility model; Figure 7 This is a schematic diagram of the structure of the dust suction nozzle of this utility model.

[0021] In the diagram: 1. Testing cabinet; 2. Vacuum cleaner; 3. Glass cabinet door; 4. Flame-spraying device; 5. Auxiliary support device; 6. Testing mechanism; 61. Separating component; 611. Motor; 612. Separating plate; 613. Fixing rod; 614. Sleeve block; 615. Heat insulation baffle; 62. Pressing component; 621. Pressing piece; 6211. Fixing ring plate; 6212. Inner groove; 6213. First rubber plate; 6214. Rotating rod; 6215. First magnetic block; 6216. Second magnetic block; 6217. Separating ring plate; 6218. Second rubber plate; 622. Handrail; 623. Grip handle; 63. Vacuum cleaning component; 631. Vacuum nozzle; 632. Filter; 633. Vacuum pipe. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0023] Please see Figure 1 - Figure 7 This utility model provides a technical solution: a low-voltage cable flame retardant treatment and testing equipment, comprising: a testing cabinet 1, a vacuum cleaner 2 located on the upper surface of the testing cabinet 1, a glass cabinet door 3, a flame-spraying device 4, and an auxiliary support device 5. The testing cabinet 1 is internally equipped with a testing mechanism 6, which further includes: A partition component 61 is disposed on the inner surface of the testing cabinet 1, and the partition component 61 includes a partition plate 612; Pressing member 62 is disposed on the upper surface of partition plate 612, and pressing member 62 includes pressing element 621; A dust collection component 63 is disposed on the inner surface of the testing cabinet 1, and the dust collection component 63 includes a dust collection nozzle 631.

[0024] The output end of the motor 611 is fixedly connected to the center of the lower surface of the partition plate 612. A fixing rod 613 is installed at the center of the upper surface of the partition plate 612. A sleeve block 614 is installed on the upper part of the outer surface of the fixing rod 613. Heat insulation baffles 615 are installed on both sides of the sleeve block 614. The heat insulation baffles 615 are made of ceramic fiber material and are used to block the interference of flames and high-temperature heat radiation on the cables of adjacent workstations, ensuring the independence of test conditions.

[0025] The fixing rod 613 has a hollow interior design. This hollow design facilitates the flow of subsequent smoke, and the fixing rod 613 is made of high-temperature resistant stainless steel, which allows high-heat smoke to pass through easily. It is also strong and reasonably priced.

[0026] The motor 611 is installed on the inner surface of the testing cabinet 1, and multiple sets of heat insulation baffles 615 are provided.

[0027] A handle 622 is mounted on the outer surface of the pressing component 621. The high-temperature section of the handle 622 near the cable is made of 310S stainless steel to ensure structural strength. A grip handle 623 is fitted and fixed to the upper part of the outer surface of the handle 622. The grip handle 623 is made of high-temperature resistant and low thermal conductivity PEEK engineering plastic, providing a safe and heat-resistant grip point and facilitating the operator to apply force.

[0028] The pressing component 621 includes a fixed ring plate 6211. An inner groove 6212 is formed on the outer surface of the fixed ring plate 6211, and a first rubber plate 6213 is placed in the inner groove 6212. A rotating rod 6214 is fixedly connected to the inner surface of the fixed ring plate 6211. The first rubber plate 6213 is made of fluororubber and has good sealing performance.

[0029] The handle 622 is installed on the outer surface of the separation ring plate 6217, and multiple sets of pressing parts 621 are provided.

[0030] The side of the fixed ring plate 6211 away from the separating ring plate 6217 is fixedly connected to the side of the sleeve block 614 near the separating ring plate 6217, and the outer surface of the rotating rod 6214 is rotatably connected to the inner surface of the separating ring plate 6217. This rotatable connection allows the separating ring plate 6217 to rotate around the rotating rod 6214, realizing the opening and closing action.

[0031] A filter 632 is provided above the suction nozzle 631. The filter 632 contains a multi-stage filter element, including a high-efficiency filter element for blocking particulate matter and an activated carbon filter element for adsorbing toxic gases. A suction pipe 633 is installed on the upper surface of the filter 632.

[0032] A suction nozzle 631 is mounted on the outer surface of a fixing rod 613, and its opening is designed with a wide opening to efficiently capture the smoke produced by combustion. A filter 632 is mounted on the inner surface of the detection cabinet 1 and is mounted on the top of the fixing rod 613. The end of the suction pipe 633 away from the filter 632 is connected to the air inlet of the vacuum cleaner 2. Together, they constitute an active smoke collection and purification system.

[0033] The working principle is as follows: First, the operator opens the glass cabinet door 3 and clamps the multiple low-voltage cable samples to be tested one by one into the equipment. During clamping, the operator holds the grip handle 623 made of engineering plastic, which effectively insulates against heat and prevents burns. Then, by applying force through the handle 622, the separation ring plate 6217 rotates around the rotating rod 6214, thereby opening the clamp composed of the fixed ring plate 6211 and the separation ring plate 6217. After the cable is placed in, the clamp is quickly closed by the magnetic attraction between the first magnetic block 6215 and the second magnetic block 6216. At this time, the first rubber plate 6213 and the second rubber plate 6218, which are made of high-temperature resistant fluororubber, will flexibly hold the cable, providing sufficient clamping force to prevent the cable from loosening during the test and avoiding excessive pressure damage to the cable sheath. Since the pressing parts 621 are set on the upper and lower sides, the fixing ring plate 6211 in the upper pressing part 621 is fixedly connected to the sleeve block 614, and the fixing ring plate 6211 in the lower pressing part 621 is fixedly connected to the upper surface of the partition plate 612. Therefore, the pressing parts 621 set on the upper and lower sides can press the upper and lower surfaces of the cable, so that the cable presents a vertical angle. It should be noted that the diameter of the cable to be pressed must be slightly larger than the theoretical inner diameter formed by the combination of the fixing ring plate 6211 and the partition ring plate 6217, so that the clamp can effectively hold the cable through the elastic deformation of the first rubber plate 6213 and the second rubber plate 6218. If the cable diameter is too small, it will not be able to generate sufficient contact pressure and friction, resulting in clamping failure.

[0034] After a cable is installed onto the pressing component 621 at the current workstation, the operator presses the control button on the upper surface of the testing cabinet 1 to send a rotation command to the control system. Upon receiving the signal, the control system drives the motor 611 to rotate precisely at a preset angle. The output of the motor 611 drives the partition plate 612, which is fixed to it, to rotate. This, in turn, rotates the entire pressing component 62 and the clamped cable to a certain angle via the fixing rod 613 and the sleeve block 614, and rotates the unloaded pressing component 621 to the front of the installer, facilitating the installation of the next cable. This process is repeated until all workstations have completed cable clamping. The glass cabinet door 3 is then closed, creating a sealed testing environment.

[0035] Then, the operator activates the ignition button on the equipment via the control system. Motor 611 then begins to operate according to the program, driving the partition plate 612 fixed to its output end to rotate. The partition plate 612 drives the fixing rod 613 mounted at its upper center and multiple pressing components 62 mounted via the sleeve block 614 to rotate together, thereby automatically and sequentially transporting the clamped cables to the testing station in front of the flame-spraying device 4. The flame-spraying test of each cable is pre-set for a specific time. The heat-insulating baffles 615 (made of ceramic fiber material) on both sides of the sleeve block 614 rotate with the testing station. Their function is to effectively prevent the spread of flame and high-temperature heat radiation to cable samples at adjacent stations while one cable is being tested, ensuring the independence and accuracy of each test condition and avoiding test result distortion caused by thermal interference.

[0036] Meanwhile, this device integrates cable testing and cooling processes through rotary indexing. After a cable completes testing, the rotating mechanism moves it out of the combustion station and into the cooling zone for natural cooling. This design effectively solves the problem of cables and their conductors remaining at high temperatures for extended periods due to thermal inertia after combustion. If this problem is not addressed, high-temperature cables could pose a risk of burns to operators during subsequent disassembly. By setting up a rotating station, the system parallelizes the unavoidable cooling waiting time with the testing time of other cables, ensuring continuous testing efficiency while eliminating potential safety hazards from high-temperature sampling and avoiding the need to wait for the previous cable to cool down before opening the cabinet for removal, as is common in traditional testing methods.

[0037] Next, when a cable rotates and is precisely positioned in front of the flame-spraying device 4, the device 4 ignites the cable sample according to a preset program, specifying the flame intensity, angle, and duration. Throughout the combustion process, the sealed structure of the testing cabinet 1 ensures that the testing environment is not disturbed by external airflow, resulting in stable flame behavior and reliable test results. Simultaneously, the dust collection component 63 begins operation. The vacuum cleaner 2 generates suction through the suction pipe 633, rapidly drawing in the high-temperature smoke and some toxic gases produced by combustion through the suction nozzle 631 (wide-mouth design to improve capture efficiency). The smoke then flows through the hollow fixed rod 613 and upwards into the filter 632. The multi-stage filter element in the filter 632 filters out smoke particles and adsorbs toxic gases, ultimately discharging the purified gas, thus protecting the health of operators and preventing environmental pollution.

[0038] Finally, after the current cable has been tested, the flame-spraying device 4 stops working. The motor 611 restarts, driving the partition plate 612 to rotate a certain angle, turning the tested cable out of the testing station and into the cooling zone. At the same time, the next cable to be tested is rotated and sent into the testing station, and so on, until all cable samples have been tested in sequence. After the entire testing cycle is completed and the equipment stops running, the handle 623 and the support bar 622 are now close to the ambient temperature. The operator can then safely open the glass cabinet door 3 and, by operating the handle 623, open the clamps and remove all the tested cable samples.

[0039] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A low voltage cable fire retardant treatment and detection apparatus comprising: The testing cabinet (1), the vacuum cleaner (2) located on the upper surface of the testing cabinet (1), the glass cabinet door (3), the flame-spraying device (4), and the auxiliary support device (5) are characterized in that: the testing cabinet (1) is provided with a testing mechanism (6), and the testing mechanism (6) further has: A partition component (61) is disposed on the inner surface of the testing cabinet (1), and the partition component (61) includes a partition plate (612). Pressing component (62) is disposed on the upper surface of partition plate (612), and the pressing component (62) includes pressing element (621). A vacuuming component (63) is disposed on the inner surface of the testing cabinet (1), and the vacuuming component (63) includes a vacuum nozzle (631).

2. A low voltage cable fire-retardant treatment and detection apparatus according to claim 1, characterised in that: The output end of a motor (611) is fixed at the center of the lower surface of the partition plate (612), a fixing rod (613) is installed at the center of the upper surface of the partition plate (612), a sleeve block (614) is installed on the upper part of the outer surface of the fixing rod (613), and heat insulation baffles (615) are installed on both sides of the sleeve block (614).

3. A low voltage cable fire-retardant treatment and detection apparatus according to claim 2, characterised in that: The motor (611) is installed on the inner surface of the testing cabinet (1), and the number of heat insulation baffles (615) is set in multiple sets.

4. The low voltage cable fire-retardant treatment and detection apparatus of claim 1, wherein: The outer surface of the pressing member (621) is fitted with a handle (622), and a grip handle (623) is sleeved and fixed to the upper part of the outer surface of the handle (622).

5. A low voltage cable fire-retardant treatment and detection apparatus according to claim 4, characterised in that: The pressing component (621) includes a fixed ring plate (6211), the outer surface of the fixed ring plate (6211) is provided with an inner groove (6212), a first rubber plate (6213) is placed in the inner groove (6212), and a rotating rod (6214) is fixedly connected to the inner surface of the fixed ring plate (6211).

6. A low voltage cable fire-retardant treatment and detection apparatus according to claim 5, characterised in that: The inner wall of the fixed ring plate (6211) is equipped with a first magnetic block (6215), the first magnetic block (6215) magnetically attracts a second magnetic block (6216), the outer surface of the second magnetic block (6216) is equipped with a separation ring plate (6217), and the outer surface of the separation ring plate (6217) is equipped with a second rubber plate (6218).

7. A low voltage cable fire-retardant treatment and detection apparatus according to claim 6, characterised in that: The handle (622) is installed on the outer surface of the separation ring plate (6217), and the number of pressing members (621) is arranged in multiple sets.

8. A low voltage cable fire-retardant treatment and detection apparatus according to claim 7, characterised in that: The side of the fixed ring plate (6211) away from the separating ring plate (6217) is fixedly connected to the side of the sleeve block (614) close to the separating ring plate (6217), and the outer surface of the rotating rod (6214) is rotatably connected to the inner surface of the separating ring plate (6217).

9. The low voltage cable fire-retardant treatment and detection apparatus of claim 1, wherein: A filter (632) is provided above the suction nozzle (631), and a suction pipe (633) is installed on the upper surface of the filter (632).

10. A low voltage cable fire-retardant treatment and detection apparatus according to claim 9, characterised in that: The suction nozzle (631) is installed on the outer surface of the fixing rod (613), the filter (632) is installed on the inner surface of the testing cabinet (1), the filter (632) is installed on the top of the fixing rod (613), and the end of the suction pipe (633) away from the filter (632) is connected to the air inlet of the vacuum cleaner (2).

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