An automatic cable tension detection device and detection method

Abstract

The present invention relates to the technical field of cable detection, in particular to an automatic cable tension detection device and a detection method, which includes a frame. A controller and a baffle are fixedly connected to the top of the frame. A receiving groove is provided on the baffle, and a driving mechanism is arranged inside the receiving groove. Two clamping members are also arranged on the frame, and one of the clamping members is fixedly connected to the top of the frame. Through the setting of the limiting mechanism, during the test, if the cable breaks, the limiting mechanism will intervene. Since the breakage usually occurs near the middle part, the limiting mechanism limits the part near the clamping member, which is beneficial to prevent the broken cable from being thrown out of the inside of the protective shell and prevent the broken debris from causing harm to the operator and other components.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and particularly relates to an automatic cable tensile force detection device and a detection method. Background Art

[0002] A cable is an electrical device used to transmit electric energy, signals or other information, and is composed of one or more mutually insulated conductors and an outer insulating protective layer. Cables play an important role in power systems, communication systems, industrial automation and other fields. The performance detection of cables is an important link to ensure their quality and reliability, and tensile force detection is one of the key test items. Through tensile force detection, mechanical performance indicators such as the tensile strength, elastic modulus, and elongation rate of the cable can be evaluated, so as to judge whether the cable can withstand a certain tensile force without breaking or deforming during actual use.

[0003] During the actual detection process of cables, when using detection equipment to test the strength of cables, if the operation is improper or there are some potential defects in the cables themselves, the cables may suddenly break. Once the cables break, the fragments generated by the break may fly out at a high speed. These fragments may hit the operators, causing serious harm to their bodies, and thus triggering safety accidents. At the same time, these fragments may also hit other equipment components around, causing equipment damage, affecting the normal operation of the equipment, and even possibly triggering more complex faults or chain reactions, bringing huge safety hazards and economic losses to the entire detection work. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose an automatic cable tensile force detection device and a detection method.

[0005] To achieve the above purpose, in a first aspect, the present invention provides an automatic cable tensile force detection device, including a frame. A controller and a baffle are fixedly connected to the top of the frame. A receiving groove is formed in the baffle, and a driving mechanism is arranged inside the receiving groove. Two clamping members are also arranged on the frame. One of the clamping members is fixedly connected to the top of the frame, and the other clamping member is slidably connected inside the receiving groove and is connected to the driving mechanism. A limiting rod is fixedly connected to the side wall of the controller, and a retaining seat is fixedly connected to the end of the limiting rod. The clamping member is slidably connected to the limiting rod through a connecting plate;

[0006] Two sets of shielding components are arranged on the top of the baffle. The shielding component includes a protective shell fixedly connected to the top of the baffle through a support frame. A first notch for the cable to pass through is formed in the protective shell. A cover box is fixedly connected to the side wall of the protective shell close to the clamping member. A second notch for the cable to pass through is formed in the cover box. A limiting mechanism for intercepting when the cable breaks during the cable test is arranged inside the cover box.

[0007] It should be understood that during the test, if the cable breaks, in order to prevent the debris generated by the fragmentation from harming the operator or other components, the protective shell will block the debris after the break, thereby suppressing the splashing of the debris, which helps to avoid the situation of harming the operator. At the same time, the controller will synchronously control the limit mechanism to start working, and the limit mechanism will intervene. Since the break usually occurs near the middle part, the limit mechanism limits the part near the clamping piece, which is beneficial to preventing the broken cable from being thrown out of the inside of the protective shell and preventing the fragmented debris from harming the operator and other components.

[0008] Preferably, the limit mechanism includes an electric push rod, which is fixedly connected to the side wall of the cover box, and the telescopic end of the electric push rod penetrates through the cover box and is fixedly connected to an elastic member, and an extrusion block is provided at the end of the elastic member.

[0009] Preferably, a groove is formed on the side wall of the extrusion block, a roller is rotatably connected inside the groove, threaded rods are fixedly connected to both the upper and lower ends of the roller, the thread directions of the two threaded rods are opposite, a threaded seat is threadedly connected to the outer wall of the threaded rod, an insertion rod is fixedly connected to the inner wall of the cover box, and the insertion rod is slidably connected to the threaded seat. A pressing rod is rotatably connected to the outer wall of the threaded seat through a fixed block, and a pressing knife for cutting into the cable is fixedly connected to the outer wall of the pressing rod.

[0010] Preferably, a push rod is fixedly connected to the outer wall of the pressing rod, and a cross bar is fixedly connected to the side wall of the extrusion block, and the push rod cooperates with the cross bar.

[0011] Preferably, a stop post is fixedly connected to the end of the roller, and a stop block is fixedly connected to the inner wall of the groove.

[0012] Preferably, the elastic member includes a sliding rod, one end of the sliding rod is fixedly connected to the telescopic end of the electric push rod, the other end of the sliding rod is slidably connected to a sliding cylinder, the end of the sliding cylinder is fixedly connected to the extrusion block, and a spring is fixedly connected between the inner wall of the sliding rod and the sliding cylinder.

[0013] Preferably, a sliding groove is formed on the outer wall of the sliding cylinder, a displacement block is slidably connected inside the sliding groove, the displacement block is connected to the sliding rod, and a pin is fixedly connected to the side wall of the displacement block through an adapter block.

[0014] Preferably, a sliding frame is fixedly connected to the outer wall of the sliding rod, the sliding frame is slidably connected to the cover box, the sliding frame is rotatably connected to a gear through a sliding rod, the gear is fixedly connected to a flame retardant package with an internal flame retardant through an adapter rod, the sliding rod is slidably connected to the protective shell, and a rack is fixedly connected inside the protective shell, and the gear meshes with the rack.

[0015] Preferably, a monitoring component is arranged inside the protective case for monitoring the internal environment of the protective case.

[0016] In a second aspect, the present invention provides a detection method for an automatic cable tension detection device, and the detection method includes the following steps:

[0017] Obtain first parameter information, which includes but is not limited to smoke, temperature, and optical signals;

[0018] Generate first control information based on the first parameter information;

[0019] The controller sends the first control information to the flame retardant package to control the flame retardant package to spray the flame retardant into the interior of the protective case.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] First, through the setting of the limiting mechanism in the present invention, during the test, if the cable breaks, in order to avoid the debris generated by the fragmentation from causing harm to the operator or other components, the protective case will block the fragmented debris after the break, thereby suppressing the splashing of the debris, which helps to avoid the situation of causing harm to the operator. At the same time, the controller will synchronously control the limiting mechanism to start working, and the limiting mechanism will intervene. Because the break usually occurs near the middle part, the limiting mechanism limits the part near the clamping part, which is beneficial to preventing the broken cable from being thrown out of the interior of the protective case and preventing the fragmented debris from causing harm to the operator and other components.

[0022] Second, through the setting of the pressing knife in the present invention, as the cable moves, it will drive the roller to rotate. During the rotation of the roller, the roller will drive the threaded rod to rotate. The threaded rod will cause the threaded seat to approach the cable, and the pressing rod will drive the pressing knife to move towards the cable. As the roller continues to rotate, at this time, the pressing knife will cut into the interior of the cable, thereby limiting the cable and being beneficial to preventing the cable from continuing to move and slipping out of the protective case.

[0023] Third, through the setting of the rod and the cross bar in the present invention, after they come into contact, under the action of the cross bar, the push rod will be deflected, the push rod will drive the pressing rod to deflect, and the pressing rod will drive the pressing knife to deflect, which is beneficial to using the deflection of the pressing knife to push the cable into the interior of the protective case and is beneficial to the protective case to block the debris generated by the break. Description of the Drawings

[0024] Figure 1 Schematic diagram of the overall structure of the detection device of the present invention Figure 1 。

[0025] Figure 2Schematic diagram of the overall structure of the detection device of the present invention Figure 2 。

[0026] Figure 3 Schematic diagram of the structure of the protective shell of the present invention.

[0027] Figure 4 Schematic diagram of the structure at the connection between the protective shell and the cover box of the present invention.

[0028] Figure 5 Schematic diagram of the structure of the present invention after sectioning along the protective shell and the cover box.

[0029] Figure 6 Schematic diagram of the structure of the present invention after sectioning along the protective shell Figure 1 。

[0030] Figure 7 Schematic diagram of the structure of the present invention after sectioning along the protective shell Figure 2 。

[0031] Figure 8 Schematic diagram of the structure at the connection between the extrusion block and the sliding cylinder of the present invention.

[0032] Figure 9 Flow chart of the detection method of the present invention.

[0033] In the figure: 1, frame; 2, controller; 3, baffle; 4, receiving groove; 5, clamping member; 6, limiting rod; 7, retaining seat; 8, support frame; 9, protective shell; 10, first notch; 11, cover box; 12, second notch; 13, electric push rod; 14, extrusion block; 15, groove; 16, roller; 17, threaded rod; 18, threaded seat; 19, insertion rod; 20, fixed block; 21, downward pressure rod; 22, downward pressure knife; 23, push rod; 24, cross bar; 25, retaining post; 26, retaining block; 27, sliding rod; 28, sliding cylinder; 29, spring; 30, sliding groove; 31, displacement block; 32, connecting block; 33, insertion pin; 34, sliding frame; 35, sliding rod; 36, gear; 37, flame retardant package; 38, rack. Detailed implementation manners

[0034] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0035] ]>Application scenario: During the actual detection of cables, when using detection equipment to conduct strength tests on cables, if the operation is improper or there are certain potential defects in the cables themselves, it may cause the cables to suddenly break. Once the cables break, the fragments generated by the fracture may fly out at a high speed. These fragments may hit the operators, causing serious harm to their bodies and thus triggering safety accidents. At the same time, these fragments may also hit other equipment components around, causing equipment damage, affecting the normal operation of the equipment, and even possibly triggering more complex faults or chain reactions, bringing huge safety hazards and economic losses to the entire detection work.

[0036] Such as Figures 1 to 8 Shown is an automatic cable tensile detection device and detection method, including a frame 1. A controller 2 and a baffle 3 are fixedly connected to the top of the frame 1. A receiving groove 4 is formed in the baffle 3. A driving mechanism is arranged inside the receiving groove 4. Two clamping members 5 are also arranged on the frame 1. One of the clamping members 5 is fixedly connected to the top of the frame 1, and the other clamping member 5 is slidably connected inside the receiving groove 4 and is connected to the driving mechanism. A limiting rod 6 is fixedly connected to the side wall of the controller 2. A retaining seat 7 is fixedly connected to the end of the limiting rod 6. The clamping member 5 is slidably connected to the limiting rod 6 through a connecting plate;

[0037] Two groups of shielding components are arranged on the top of the baffle 3. The shielding components include a protective shell 9 fixedly connected to the top of the baffle 3 through a support frame 8. A first notch 10 for the cable to pass through is formed in the protective shell 9. A cover box 11 is fixedly connected to the side wall of the protective shell 9 close to the clamping member 5. A second notch 12 for the cable to pass through is formed in the cover box 11. A limiting mechanism for intercepting when the cable breaks during the cable test is arranged inside the cover box 11.

[0038] It should be understood that during the cable test, first, the two ends of the cable are fixed respectively; the specific operation is to first pass the end of the cable through the first notch 10 and the second notch 12, and then clamp the two end portions of the cable to be tested through the two clamping members 5 respectively. These two clamping members 5 ensure that the cable can be firmly fixed during the test and will not slide or fall off; the clamping members 5 usually have sufficient clamping force and appropriate surface treatment to prevent damage to the cable and at the same time ensure that the cable remains stable during the test;

[0039] When both ends of the cable are firmly clamped by the clamping members 5, the entire detection device enters the preparation state; at this time, the controller 2 will issue an instruction to control the driving mechanism to start working. After the driving mechanism starts, it will drive the clamping member 5 connected to it to move. Since the clamping member 5 fixes the cable, the movement of the clamping member 5 will directly drive the cable to move;

[0040] As the driving mechanism operates, the clamping member 5 moves in a set direction and speed, thereby applying a tensile force to the cable. By precisely controlling the movement of the clamping member 5, tensile tests of different intensities and types can be performed on the cable to evaluate the mechanical properties of the cable, such as tensile strength, elongation at break, etc. During the entire testing process, the controller 2 will monitor the operating state of the driving mechanism in real time and adjust the parameters as needed to ensure the accuracy and reliability of the test;

[0041] During the testing process, if the cable breaks, in order to prevent the debris generated by the fragmentation from causing harm to the operator or other components, the protective shell 9 will block the fragmented debris after the break, thereby suppressing the splashing of the debris, which helps to avoid the occurrence of harm to the operator. At the same time, the controller 2 will synchronously control the limit mechanism to start working, and the limit mechanism will intervene. Since the break usually occurs near the middle part, the limit mechanism limits the part near the clamping member 5, which helps to prevent the broken cable from being thrown out from the inside of the protective shell 9 and helps to prevent the fragmented debris from causing harm to the operator and other components.

[0042] It should be noted that the driving mechanism is composed of existing components such as a motor and a threaded rod 17, and will not be disclosed in detail here. The clamping member 5 is also an existing mature technology with a wide range of applications and will not be disclosed in detail here.

[0043] As a further embodiment of the present invention, the limit mechanism includes an electric push rod 13. The electric push rod 13 is fixedly connected to the side wall of the cover box 11, and the telescopic end of the electric push rod 13 passes through the cover box 11 and is fixedly connected to an elastic member. An extrusion block 14 is provided at the end of the elastic member.

[0044] It should be understood that the controller 2 controls the electric push rod 13 to start working. By pushing the elastic member through the electric push rod 13, the elastic member pushes the extrusion block 14 to move. The extrusion block 14 will apply a thrust to the outer wall of the cable, so that the cable abuts against the side wall of the second notch 12, which helps to prevent the cable from being thrown out.

[0045] As a further embodiment of the present invention, a groove 15 is provided on the side wall of the extrusion block 14. A roller 16 is rotatably connected to the inside of the groove 15. Threaded rods 17 are fixedly connected to both the upper and lower ends of the roller 16. The thread directions of the two threaded rods 17 are opposite. A threaded seat 18 is threadedly connected to the outer wall of the threaded rod 17. An insertion rod 19 is fixedly connected to the inner wall of the cover box 11. The insertion rod 19 is slidably connected to the threaded seat 18. A pressing rod 21 is rotatably connected to the outer wall of the threaded seat 18 through a fixing block 20. A pressing knife 22 for cutting into the cable is fixedly connected to the outer wall of the pressing rod 21.

[0046] It should be understood that in practical applications, although the extrusion block 14 is designed to limit the cable by extrusion, due to various uncertain factors, relying solely on the extrusion block 14 for limiting may not ensure the reliability of the limit, which may lead to the occurrence of limit failure. Therefore, by arranging a roller 16 on the side wall of the extrusion block 14 and limiting the cable by the roller 16, if the cable is successfully limited, the pressing knife 22 does not need to intervene. At this time, the roller 16 acts as a detection part to test the limit result. If the roller 16 cannot limit the cable, the rotation of the roller 16 will be driven as the cable moves. During the rotation of the roller 16, the threaded rod 17 will be driven to rotate. The threaded rod 17 will cause the threaded seat 18 to approach the cable, thereby driving the pressing rod 21 to drive the pressing knife 22 to move towards the cable. As the roller 16 continues to rotate, at this time, the pressing knife 22 will cut into the interior of the cable, thereby limiting the cable, which is beneficial to prevent the cable from continuing to move out of the protective shell 9.

[0047] As a further implementation of the present invention, a push rod 23 is fixedly connected to the outer wall of the pressing rod 21, and a cross bar 24 is fixedly connected to the side wall of the extrusion block 14. The push rod 23 cooperates with the cross bar 24.

[0048] It should be understood that during the movement of the pressing rod 21, the push rod 23 will also be driven to move downward. During the downward movement of the push rod 23, it will come into contact with the cross bar 24. After the two come into contact, under the action of the cross bar 24, the push rod 23 will be pushed to deflect. The push rod 23 will drive the pressing rod 21 to deflect, and the pressing rod 21 will drive the pressing knife 22 to deflect, which is beneficial to use the deflection of the pressing knife 22 to push the cable into the protective shell 9, which is beneficial for the protective shell 9 to block the debris generated by the fracture.

[0049] As a further implementation of the present invention, a stop post 25 is fixedly connected to the end of the roller 16, and a stop block 26 is fixedly connected to the inner wall of the groove 15.

[0050] It should be understood that because the part of the roller 16 in contact with the cable is in dynamic friction during rotation, the cable is likely to break away. To avoid such a situation, by pre-setting the stop post 25 and the stop block 26, the rotation angle of the roller 16 is restricted, which is beneficial to limit and fix the cable.

[0051] As a further implementation of the present invention, the elastic member includes a sliding rod 27. One end of the sliding rod 27 is fixedly connected to the telescopic end of the electric push rod 13, and the other end of the sliding rod 27 is slidably connected to a sliding cylinder 28. The end of the sliding cylinder 28 is fixedly connected to the extrusion block 14. A spring 29 is fixedly connected between the sliding rod 27 and the inner wall of the sliding cylinder 28.

[0052] It should be understood that the electric push rod 13 pushes the sliding cylinder 28 to move through the action of the sliding rod 27 and the spring 29, and then drives the extrusion block 14 to move towards the cable. When the electric push rod 13 continuously applies a thrust, the sliding rod 27 will further compress the spring 29; as the spring 29 is compressed, its elastic force will continuously increase and continuously act on the extrusion block 14. This continuously increasing spring 29 force can ensure that the extrusion block 14 applies sufficient pressure to the cable, thereby realizing the limit fixation of the cable, which is beneficial to improving the reliability and stability of the fixation process.

[0053] As a further embodiment of the present invention, a sliding groove 30 is provided on the outer wall of the sliding cylinder 28. A displacement block 31 is slidably connected inside the sliding groove 30. The displacement block 31 is connected to the sliding rod 27, and a pin 33 is fixedly connected to the side wall of the displacement block 31 through an adapter block 32.

[0054] It should be understood that in the above example, it is described that the cable is cut and limited by the lower cutting knife 22. However, in the actual application process, if the cable continuously moves during the cutting process, it may affect the cutting of the cable. Therefore, when the sliding rod 27 compresses the spring 29, it will synchronously drive the displacement block 31 to move. The displacement block 31 will drive the pin 33 to move through the adapter block 32, and the pin 33 will be inserted into the cable to limit the cable. On the one hand, it is beneficial to prevent the situation that the lower cutting knife is difficult to cut due to the continuous movement of the cable. On the other hand, the cable can be limited by the pin 33, which is beneficial to prevent the cable from slipping out excessively.

[0055] As a further embodiment of the present invention, a sliding frame 34 is fixedly connected to the outer wall of the sliding rod 27. The sliding frame 34 is slidably connected to the cover box 11. The sliding frame 34 is rotatably connected to a gear 36 through a sliding rod 35. The gear 36 is fixedly connected to a flame retardant package 37 containing a flame retardant through a connecting rod. The sliding rod 35 is slidably connected to the protective shell 9. A rack 38 is fixedly connected inside the protective shell 9. The gear 36 meshes with the rack 38.

[0056] As a further embodiment of the present invention, a monitoring component is provided inside the protective shell 9 for monitoring the internal environment of the protective shell 9.

[0057] It should be understood that in some special cases, live testing of the cable is required. For example, in the insulation performance test of the cable, partial discharge detection is a common live testing method. By applying a high voltage to the cable, it is detected whether there is a partial discharge phenomenon in the cable insulation layer. Partial discharge detection is usually used to evaluate the insulation state of the cable to discover potential insulation defects, etc. However, in such a case, if there is a risk of arc discharge when the cable breaks, it may lead to a fire or an electric shock accident. Therefore, by setting up a detection component to monitor the internal environment of the protective housing 9, if an abnormal situation is detected, the flame retardant package 37 containing an internal flame retardant is controlled to automatically spray the flame retardant inside the protective housing 9. And during the movement of the sliding rod 27, it will drive the carriage 34 to move. The carriage 34 will drive the gear 36 to move through the slide bar 35. The gear 36 will drive the flame retardant package 37 containing an internal flame retardant to move through the connecting rod. During the movement of the gear 36, it will come into contact with the rack 38. Under the action of the rack 38, it will drive the gear 36 to deflect. The gear 36 will drive the flame retardant package 37 containing an internal flame retardant to deflect through the connecting rod. The deflection of the flame retardant package 37 containing an internal flame retardant can help to evenly disperse the flame retardant into different spaces inside the protective housing 9, thus facilitating the handling of the possible arc discharge situation when the cable breaks and preventing the occurrence of other situations such as a fire;

[0058] Moreover, the action of pushing the cable into the interior of the protective housing 9 by the lower cutting knife can help the flame retardant package 37 to spray the flame retardant on it for treatment, thus facilitating the further reduction of the occurrence of other situations such as a fire.

[0059] The monitoring component includes but is not limited to a temperature sensor, a smoke sensor, and a photoelectric sensor, all of which are distributed inside the protective housing 9.

[0060] In a second aspect, a detection method for an automatic cable tension detection device as Figure 9 shown, the detection method includes the following steps:

[0061] Obtain the first parameter information, which includes but is not limited to smoke, temperature, and optical signals;

[0062] Generate the first control information based on the first parameter information;

[0063] The controller 2 sends the first control information to the flame retardant package 37 to control the flame retardant package 37 to spray the flame retardant into the interior of the protective housing 9.

[0064] It should be understood that one or more of the smoke, temperature, and optical signals are obtained through the monitoring unit. After obtaining one of the information, the information is sent to the controller 2. The controller 2 generates the first control information after receiving the first parameter information. The first control information is used to control whether the flame retardant package 37 starts to work.

[0065] Working principle of the present invention: During the cable testing process, the two ends of the cable are first fixed respectively; specifically, the end of the cable is first passed through the first notch 10 and the second notch 12, and then the two ends of the cable to be tested are respectively clamped by two clamping members 5. These two clamping members 5 ensure that the cable can be firmly fixed during the testing process without sliding or falling off; the clamping members 5 usually have sufficient clamping force and appropriate surface treatment to prevent damage to the cable and ensure the stability of the cable during the testing process.

[0066] When the two ends of the cable are firmly clamped by the clamping members 5, the entire detection device enters the preparation state; at this time, the controller 2 issues an instruction to control the driving mechanism to start working. After the driving mechanism starts, it will drive the clamping member 5 connected to it to move. Since the clamping member 5 fixes the cable, the movement of the clamping member 5 will directly drive the cable to move.

[0067] With the operation of the driving mechanism, the clamping member 5 moves in a set direction and speed, thereby applying a tensile force to the cable. By precisely controlling the movement of the clamping member 5, different strength and type of tensile tests can be performed on the cable to evaluate the mechanical properties of the cable, such as tensile strength, elongation at break, etc. During the entire testing process, the controller 2 will monitor the operating state of the driving mechanism in real time and adjust the parameters as needed to ensure the accuracy and reliability of the test.

[0068] During the testing process, if the cable breaks, in order to avoid the debris generated by the fragmentation from causing harm to the operator or other components, the protective shell 9 will block the fragmented debris after the break, thereby suppressing the splashing of the debris, which helps to avoid the occurrence of harm to the operator. At the same time, the controller 2 will synchronously control the limiting mechanism to start working. The limiting mechanism will intervene in the process. Since the break usually occurs near the middle part, the limiting mechanism limits the part near the clamping member 5, which helps to prevent the broken cable from being thrown out of the inside of the protective shell 9 and helps to prevent the fragmented debris from causing harm to the operator and other components.

[0069] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An automatic cable tension detection device, comprising a frame (1), characterized in that: A controller (2) and a baffle (3) are fixedly connected to the top of the frame (1). A receiving groove (4) is formed in the baffle (3). A driving mechanism is arranged inside the receiving groove (4). Two clamping members (5) are further arranged on the frame (1). One of the clamping members (5) is fixedly connected to the top of the frame (1), and the other clamping member (5) is slidably connected inside the receiving groove (4) and is connected to the driving mechanism. A limiting rod (6) is fixedly connected to the side wall of the controller (2). A retaining seat (7) is fixedly connected to the end of the limiting rod (6). The clamping member (5) is slidably connected to the limiting rod (6) through a connecting plate; Two sets of shielding components are arranged on the top of the baffle (3). The shielding component includes a protective shell (9) fixedly connected to the top of the baffle (3) through a support frame (8). A first notch (10) for the cable to pass through is formed in the protective shell (9). A cover box (11) is fixedly connected to the side wall of the protective shell (9) close to the clamping member (5). A second notch (12) for the cable to pass through is formed in the cover box (11). A limiting mechanism for intercepting when the cable breaks during the cable test is arranged inside the cover box (11); The limiting mechanism includes an electric push rod (13). The electric push rod (13) is fixedly connected to the side wall of the cover box (11), and the telescopic end of the electric push rod (13) penetrates through the cover box (11) and is fixedly connected to an elastic member. An extrusion block (14) is arranged at the end of the elastic member; A groove (15) is formed in the side wall of the extrusion block (14). A roller (16) is rotatably connected inside the groove (15). Threaded rods (17) are fixedly connected to both the upper and lower ends of the roller (16). The thread directions of the two threaded rods (17) are opposite. A threaded seat (18) is threadedly connected to the outer wall of the threaded rod (17). An insertion rod (19) is fixedly connected to the inner wall of the cover box (11). The insertion rod (19) is slidably connected to the threaded seat (18). A pressing rod (21) is rotatably connected to the outer wall of the threaded seat (18) through a fixing block (20). A pressing knife (22) for cutting into the cable is fixedly connected to the outer wall of the pressing rod (21); A push rod (23) is fixedly connected to the outer wall of the pressing rod (21). A cross bar (24) is fixedly connected to the side wall of the extrusion block (14). The push rod (23) cooperates with the cross bar (24); A stop post (25) is fixedly connected to the end of the roller (16). A stop block (26) is fixedly connected to the inner wall of the groove (15).

2. The automatic cable tension detection device according to claim 1, wherein: The elastic member includes a sliding rod (27). One end of the sliding rod (27) is fixedly connected to the telescopic end of the electric push rod (13). The other end of the sliding rod (27) is slidably connected to a sliding cylinder (28). The end of the sliding cylinder (28) is fixedly connected to the extrusion block (14). A spring (29) is fixedly connected between the sliding rod (27) and the inner wall of the sliding cylinder (28).

3. An automatic cable tension detection device according to claim 2, characterized in that: A sliding groove (30) is formed in the outer wall of the sliding cylinder (28), a displacement block (31) is slidably connected inside the sliding groove (30), the displacement block (31) is connected to the sliding rod (27), and a pin (33) is fixedly connected to the side wall of the displacement block (31) through an adapter block (32).

4. The automatic cable tensile force detection device according to claim 3, wherein: A sliding frame (34) is fixedly connected to the outer wall of the sliding rod (27), the sliding frame (34) is slidably connected to the cover box (11), the sliding frame (34) is rotatably connected to a gear (36) through a sliding rod (35), the gear (36) is fixedly connected to a flame retardant package (37) containing a flame retardant through a connecting rod, the sliding rod (35) is slidably connected to the protective shell (9), and a rack (38) is fixedly connected inside the protective shell (9), and the gear (36) meshes with the rack (38).

5. An automatic cable tensile force detection device according to claim 4, characterized in that: A monitoring component is arranged inside the protective shell (9) for monitoring the internal environment of the protective shell (9).

6. A detection method for an automatic cable tension detection device, applicable to the automatic cable tension detection device described in claim 5, characterized in that: The detection method includes the following steps: Obtain first parameter information, which includes but is not limited to smoke, temperature, and optical signals; Generate first control information based on the first parameter information; The controller (2) sends the first control information to the flame retardant package (37) to control the flame retardant package (37) to spray the flame retardant into the protective shell (9).

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