Fire-resistant cable fire-resistant layer detection device

Abstract

The utility model relates to the technical field of fire-resistant cable detection devices, and discloses a fire-resistant cable fire-resistant layer detection device, which comprises a control cabinet, a flaming assembly arranged on the upper side of the control cabinet, a supporting assembly arranged on the upper side of the control cabinet and corresponding to the flaming assembly, and a clamping assembly arranged on the side surface of the supporting assembly. The supporting assembly comprises two sets of mounting frames, a rotatable mounting rod is arranged between the two sets of mounting frames, a movable rod is arranged in the mounting rod, and a fixed first clamping rod is arranged on the side face of the movable rod. According to the utility model, the bolt block is pushed to enable the limiting block to be attached to the side surface of the mounting rack, the nut for screwing the bolt block extrudes the side surface of the movable rod to fix the limiting block, the cable on one side rotates to the other position to wait for complete cooling and extinguishing, and the cable on the other side reaches the position of the flaming assembly for electrification and fire resistance test. Therefore, uninterrupted detection can be carried out without waiting, and the detection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-resistant cable detection devices, in particular to a fire-resistant layer detection device for a fire-resistant cable. Background Art

[0002] Fire-resistant cable refers to a cable that, under specified test conditions, when the sample is burned, after the test fire source is removed, the spread of the flame is only within a limited range, and the residual flame or residual burning can be extinguished by itself within a limited time; the fire-resistant insulation layer wrapped around the cable core of the fire-resistant cable plays a fire-resistant and flame-retardant effect;

[0003] When testing the fire-resistant layer of fire-resistant cables, multiple groups of sample cables are generally burned by open flames to burn the fire-resistant layer of the outer layer of the cable at high temperature. The following problems still exist in the current testing:

[0004] 1. After the existing fire-resistant cables are subjected to open flame combustion tests, they need to wait for them to be completely burned and cooled before being replaced, and then new cables need to be tested, which is time-consuming and inefficient. Alternatively, they can be directly cooled by extinguishing the fire with a fire extinguisher, and the test results are poor and do not conform to the actual situation.

[0005] 2. When clamping and installing cables, they are generally clamped by movable clamps, which are clamped by screws, which is inconvenient to operate. Therefore, we propose a fire-resistant layer detection device for fire-resistant cables. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a fire-resistant layer detection device for a fire-resistant cable.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire-resistant cable fire-resistant layer detection device, comprising a control counter, a flame spraying assembly is arranged on the upper side of the control counter, a support assembly is arranged on the upper side of the control counter corresponding to the position of the flame spraying assembly, and a clamping assembly is arranged on the side of the support assembly;

[0008] The support assembly includes two sets of mounting frames, a rotatable mounting rod is arranged between the two sets of mounting frames, a movable rod is arranged inside the mounting rod, a fixed first clamping rod is arranged on the side of the movable rod, and a movable limit block is arranged on the side of the movable rod;

[0009] The clamping assembly comprises a fixed block, a movable clamping block is arranged on the side of the fixed block, a movable connecting rod is arranged on the side of the clamping block, and a second clamping rod which can be limited is arranged on the side of the connecting rod.

[0010] Preferably, the support assembly includes two sets of mounting frames mirror-fixedly mounted on the upper side of the control counter, a mounting rod is arranged between the two sets of mounting frames, a movable groove is opened on the side of the mounting rod, the movable rod is movably mounted inside the movable groove, and a first support tube is fixedly connected between the side of the movable rod and the inner wall of the movable groove.

[0011] Preferably, the support assembly also includes a first slot symmetrically opened on the side of the mounting frame, the first clamping rod is movably installed inside the first slot, a slot is opened on the side of the movable rod, a bolt block is movably installed inside the slot, and a limit block is fixedly installed on the side of the bolt block.

[0012] Preferably, the movable groove is a cylindrical groove with a cross-shaped cross-section, the movable rod is a cylindrical rod with a turquoise cross-section, the first support cylinder is a spring steel cylinder with a continuous "W"-shaped cross-section, and the limit block is a circular block made of rubber.

[0013] Preferably, the clamping assembly includes a connecting plate fixedly installed on the side of the mounting rod in a mirror-symmetrical manner, a fixing block fixedly installed on the side of the connecting plate, a constraint groove is opened on the inner side of the fixing block, a matching groove is opened on the inner side of the fixing block, the clamping block is movably installed inside the matching groove, a connecting groove is opened on the inner wall of the matching groove, a connecting rod is movably installed inside the connecting groove, and a second support cylinder is fixedly installed between the side of the connecting rod and the inner wall of the connecting groove.

[0014] Preferably, the clamping assembly also includes a second clamping groove equidistantly opened on the side of the connecting rod, a mounting groove is opened on the side of the fixed block, the second clamping rod is movably installed inside the mounting groove, and a third support tube is fixedly connected between the second clamping rod and the side of the fixed block.

[0015] Preferably, the clamping block is a rectangular block of rubber material with a serrated one side, the connecting groove is a cylindrical groove with a cross-shaped cross-section, the connecting rod is a cylindrical rod with a cross-shaped cross-section, the second support tube is a spring steel cylinder with a continuous "W"-shaped cross-section, the second clamping rod is a "T"-shaped rod and one side of the second clamping rod is an inclined surface, and the third support tube is a spring steel cylinder with a continuous "W"-shaped cross-section.

[0016] Beneficial Effects

[0017] The utility model provides a fire-resistant layer detection device for fire-resistant cables. It has the following beneficial effects:

[0018] (1) The fire-resistant layer detection device of the fire-resistant cable is provided with a support component. The nut of the loosened bolt block slides freely, pushing the movable rod to slide inside the movable groove to squeeze the first support tube to deform. The first clamping rod is separated from the internal position of the first clamping groove with the movable rod so that the installation rod is not restricted. The installation rod is operated to rotate 180 degrees to relax the movable rod. The deformation force of the first support tube drives the movable rod to reset so that the first clamping rod is clamped and fixed inside the first clamping groove, pushing the bolt block so that the limit block fits the side position of the mounting frame, tightening the nut of the bolt block squeezes the limit block on the side of the movable rod to fix it, and the cable on one side is rotated to the other position to wait for complete cooling and extinguishing, and the cable on the other side is powered on and fire-resistant tested at the flame-spraying component position. In this way, the test can be carried out uninterruptedly without waiting, thereby improving the detection effect.

[0019] (2) The fire-resistant layer detection device of the fire-resistant cable is provided with a clamping assembly. The two ends of the cable are placed in the constraint groove position inside the fixing block. The connecting rod is pressed to slide inside the connecting groove to squeeze the second support tube to deform, so that the clamping block moves out of the matching groove and squeezes the side position of the cable to fix it. At the same time, the connecting rod squeezes the second clamping rod to slide inside the installation groove to deform the third support tube, and the second clamping rod is separated from the position inside the second clamping groove. When the clamping block is squeezed into place, the connecting rod stops moving. At this time, the deformation force of the second clamping rod in the third support tube causes it to clamp into the position inside the second clamping groove to limit the connecting rod, so that the cable can be quickly fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a partial structural schematic diagram of the movable rod of the utility model;

[0024] Figure 3For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0026] Figure 5 It is a partial structural schematic diagram of the mounting rod of the utility model;

[0027] Figure 6 For this utility model Figure 5 The enlarged structural diagram at C in the middle;

[0028] Figure 7 For this utility model Figure 6 Enlarged structural diagram at point D in the middle.

[0029] Legend:

[0030] 1. Control counter; 2. Flame-throwing assembly; 3. Mounting frame; 4. Mounting rod; 5. Movable slot; 6. Movable rod; 7. First support tube; 8. First slot; 9. First clamping rod; 10. Slot; 11. Bolt block; 12. Limit block; 13. Connecting plate; 14. Fixing block; 15. Constraint slot; 16. Matching slot; 17. Clamping block; 18. Connecting slot; 19. Connecting rod; 20. Second support tube; 21. Second slot; 22. Mounting slot; 23. Second clamping rod; 24. Third support tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] A fire-resistant layer detection device for a fire-resistant cable, such as Figure 1 - Figure 7 As shown, it includes a control counter 1, which is a rectangular table. The control counter 1 is internally provided with a controller, an air supply pump, an electrical connection clamp and connecting wires, etc. The electrical connection clamp can clamp and connect the fire-resistant cable to be tested, and the fire-resistant cable and the controller are connected by connecting wires to perform power-on detection. A flame spraying assembly 2 is arranged on the upper side of the control counter 1. The flame spraying assembly 2 is composed of a lifting frame, a rectangular frame, a connecting air pipe, a flame spraying plate and an igniter, etc. The lifting frame can adjust the height of the flame spraying plate, the connecting air pipe is connected to the air supply pump to provide combustible gas to the flame spraying plate, and the igniter is used to ignite the flame resistance test. A support assembly is arranged on the upper side of the control counter 1 corresponding to the position of the flame spraying assembly 2, and a clamping assembly is arranged on the side of the support assembly;

[0033] Furthermore, the supporting assembly includes two sets of mounting frames 3 fixedly mounted on the upper side of the control counter 1 in a mirror-image manner, the mounting frames 3 are rectangular frames with convex circular grooves on the side faces, a mounting rod 4 is arranged between the two sets of mounting frames 3 and the mounting rod 4 is movably mounted inside the convex circular grooves of the mounting frames 3, the mounting rod 4 is a circular rod, the mounting rod 4 can freely rotate between the positions of the mounting frames 3, a movable groove 5 is arranged on the side faces of the mounting rod 4 and passes through it, the movable groove 5 is a cylindrical groove with a cross-shaped cross section, a movable rod 6 is movably mounted inside the movable groove 5 and the movable rod 6 extends out of the inner position of the movable groove 5, the movable rod 6 is a cylindrical rod with a cross-shaped cross section, a first supporting tube 7 is fixedly connected between the side faces of the movable rod 6 and the inner wall of the movable groove 5 and the first supporting tube 7 is movably sleeved on the side faces of the movable rod 6, the first supporting tube 7 is a spring steel cylinder with a continuous "W"-shaped cross section, and the first supporting tube 7 can play a role in supporting the movable rod 6 The elastic support is reset, and a first clamping groove 8 is symmetrically provided on the side of the mounting frame 3 corresponding to the position of the mounting rod 4. The first clamping groove 8 is a cylindrical groove, and a first clamping rod 9 is movably installed inside the first clamping groove 8 and the first clamping rod 9 is fixedly connected to the side position of the movable rod 6. The first clamping rod 9 is a cylindrical rod, and the movable rod 6 at the bottom of the first clamping groove 8 is clamped by the first clamping rod 9 to play a limiting role. A slot 10 penetrating therethrough is provided on the side of the movable rod 6 corresponding to the side position of another group of mounting frames 3. The slot 10 is a rectangular slot, and a bolt block 11 is movably installed inside the slot 10. The bolt block 11 is composed of a circular threaded rod and a nut. A limiting block 12 is fixedly installed on the side of the bolt block 11. The limiting block 12 is a circular block made of rubber material. The nut of the bolt block 11 is threadedly squeezed on the side of the circular threaded rod on the side of the slot 10 to play the role of fixing the limiting block 12, and the limiting block 12 further limits the movable rod 6.

[0034] Furthermore, the clamping assembly includes a connecting plate 13 fixedly mounted on the side of the mounting rod 4 in a mirror-symmetrical manner. The connecting plate 13 is a rectangular plate. A fixing block 14 is fixedly mounted on the side of the connecting plate 13 away from the mounting rod 4. The fixing block 14 is a "C"-shaped block. A constraint groove 15 is opened on the inner side of the fixing block 14. The constraint groove 15 is an arc-shaped groove. The constraint groove 15 plays a certain guiding position for the cable. A matching groove 16 is opened on the inner side of the fixing block 14 corresponding to the position of the constraint groove 15. The matching groove 16 is a rectangular groove. A clamping block 17 is movably installed on the part, and the clamping block 17 is a rectangular block of rubber material with a serrated side. A connecting groove 18 that penetrates the fixing block 14 is opened on the inner wall of the matching groove 16. The connecting groove 18 is a cylindrical groove with a cross-shaped cross section. A connecting rod 19 is movably installed inside the connecting groove 18 and the connecting rod 19 is fixedly connected to the side position of the clamping block 17. The connecting rod 19 is a cylindrical rod with a cross-shaped cross section. The connecting rod 19 is constrained to slide inside the connecting groove 18 to drive the clamping block 17 to move. A second support cylinder 20 is fixedly installed between the inner walls of the connecting groove 18 and the second support cylinder 20 is movably sleeved on the side of the connecting rod 19. The second support cylinder 20 is a spring steel cylinder with a continuous "W"-shaped cross section. Second clamping grooves 21 are equidistantly opened on the side of the connecting rod 19. The second clamping grooves 21 are annular grooves. A mounting groove 22 that passes through the fixing block 14 to the connecting groove 18 is opened on the side of the fixing block 14 corresponding to the position of the second clamping groove 21. The mounting groove 22 is a rectangular groove. A second clamping rod is movably installed inside the mounting groove 22. 23 and the second clamping rod 23 is clamped in the second clamping groove 21, the second clamping rod 23 is a "T"-shaped rod and one side of the second clamping rod 23 is an inclined surface, the second clamping rod 23 is squeezed by the connecting rod 19 and can slide in the mounting groove 22, a third support tube 24 is fixedly connected between the second clamping rod 23 and the side of the fixed block 14 and the third support tube 24 is movably sleeved on the side position of the second clamping rod 23, the third support tube 24 is a spring steel cylinder with a continuous "W"-shaped cross-section, and the third support tube 24 plays an elastic reset role for the second clamping rod 23.

[0035] The working principle of this utility model:

[0036] When in use, place both ends of the cable in the position of the constraint groove 15 inside the fixing block 14, press the connecting rod 19 to slide inside the connecting groove 18 to squeeze the second support tube 20 to deform, so that the clamping block 17 moves out of the matching groove 16 and squeezes the side position of the cable to fix it. At the same time, the connecting rod 19 squeezes the second clamping rod 23 to slide inside the installation groove 22 to deform the third support tube 24, and the second clamping rod 23 is separated from the internal position of the second clamping groove 21. When the clamping block 17 is squeezed into place, the connecting rod 19 stops moving. At this time, the second clamping rod 23 The deformation force of the third support tube 24 causes it to be clamped in the inner position of the second clamping groove 21 to limit the connecting rod 19. The second clamping groove 21 serves as an identification to obtain the outer diameter of the cable. The fire-resistant cable to be tested near the flame-spraying assembly 2 is clamped by the electrical clamp of the control counter 1. The fire-resistant cable and the controller are connected with the electrical wires for power-on testing. The height of the flame-spraying plate is adjusted by the lifting frame of the flame-spraying assembly 2. The gas pipe is connected to the gas supply pump to provide combustible gas to the flame-spraying plate. The igniter ignites the cable to perform a fire-resistant test.

[0037] After the test is completed, remove the electrical clamp of the control counter 1, loosen the nut of the bolt block 11 to allow it to slide freely inside the slot 10, push the movable rod 6 to slide inside the movable slot 5 to squeeze the first support tube 7 to deform, and at the same time, the first clamping rod 9 is separated from the internal position of the first clamping slot 8 with the movable rod 6 so that the installation rod 4 is not restricted, operate the installation rod 4 to rotate 180 degrees to release the movable rod 6, and drive the movable rod 6 to reset under the deformation force of the first support tube 7 so that the first clamping rod 9 is clamped in the first clamping slot 8 and fixed, and push the bolt block 11 so that the limit block 12 fits the installation At the side position of the frame 3, the nut of the tightening bolt block 11 is squeezed on the fixed limit block 12 on the side of the movable rod 6, so that the cable at the position of the flame-spraying component 2 is rotated to another position to wait for complete cooling and extinguishing, and the cable at the new position is replaced to the position of the flame-spraying component 2 for power-on and fire resistance test in the same way as above; after the front cable is completely cooled and extinguished, the second clamping rod 23 away from the position of the flame-spraying component 2 is pulled, and under the deformation force of the second support tube 20, the connecting rod 19 is reset to drive the clamping block 17 to slide into the matching groove 16, and the old cable is removed and replaced with a new cable and the operation is repeated.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fire-resistant layer detection device for a fire-resistant cable, comprising a control counter (1), a flame spraying assembly (2) being arranged on the upper side of the control counter (1), a support assembly being arranged on the upper side of the control counter (1) at a position corresponding to the flame spraying assembly (2), and a clamping assembly being arranged on the side of the support assembly; Features: The support assembly comprises two groups of mounting frames (3), a rotatable mounting rod (4) is arranged between the two groups of mounting frames (3), a movable rod (6) is arranged inside the mounting rod (4), a fixed first clamping rod (9) is arranged on the side of the movable rod (6), and a movable limit block (12) is arranged on the side of the movable rod (6); The clamping assembly comprises a fixed block (14), a movable clamping block (17) is arranged on the side of the fixed block (14), a movable connecting rod (19) is arranged on the side of the clamping block (17), and a second clamping rod (23) that can be limited is arranged on the side of the connecting rod (19).

2. A fire-resistant cable fire-resistant layer detection device according to claim 1, characterized in that: The support assembly comprises two groups of mounting frames (3) fixedly mounted in mirror image on the upper side of the control counter (1); a mounting rod (4) is arranged between the two groups of mounting frames (3); a movable groove (5) is opened on the side of the mounting rod (4); a movable rod (6) is movably mounted inside the movable groove (5); and a first support tube (7) is fixedly connected between the side of the movable rod (6) and the inner wall of the movable groove (5).

3. A fire-resistant cable fire-resistant layer detection device according to claim 2, characterized in that: The support assembly also includes a first clamping groove (8) symmetrically arranged on the side of the mounting frame (3); a first clamping rod (9) is movably mounted inside the first clamping groove (8); a slot (10) is arranged on the side of the movable rod (6); a bolt block (11) is movably mounted inside the slot (10); and a limit block (12) is fixedly mounted on the side of the bolt block (11).

4. A fire-resistant cable fire-resistant layer detection device according to claim 3, characterized in that: The movable groove (5) is a cylindrical groove with a cross-shaped cross section, the movable rod (6) is a cylindrical rod with a U-shaped cross section, the first support tube (7) is a spring steel cylinder with a continuous "W"-shaped cross section, and the limit block (12) is a round block made of rubber.

5. A fire-resistant cable fire-resistant layer detection device according to claim 4, characterized in that: The clamping assembly comprises a connecting plate (13) fixedly mounted on the side of the mounting rod (4) in a mirror-symmetrical manner, a fixing block (14) fixedly mounted on the side of the connecting plate (13), a restraining groove (15) being provided on the inner side of the fixing block (14), a matching groove (16) being provided on the inner side of the fixing block (14), a clamping block (17) movably mounted inside the matching groove (16), a connecting groove (18) being provided on the inner wall of the matching groove (16), a connecting rod (19) movably mounted inside the connecting groove (18), and a second supporting cylinder (20) being fixedly mounted between the side of the connecting rod (19) and the inner wall of the connecting groove (18).

6. A fire-resistant layer detection device for a fire-resistant cable according to claim 5, characterized in that: The clamping assembly also includes a second clamping groove (21) equidistantly provided on the side of the connecting rod (19), a mounting groove (22) is provided on the side of the fixing block (14), a second clamping rod (23) is movably installed inside the mounting groove (22), and a third support tube (24) is fixedly connected between the second clamping rod (23) and the side of the fixing block (14).

7. A fire-resistant cable fire-resistant layer detection device according to claim 6, characterized in that: The clamping block (17) is a rectangular block made of rubber with one side being serrated, the connecting groove (18) is a cylindrical groove with a cross-shaped cross section, the connecting rod (19) is a cylindrical rod with a cross-shaped cross section, the second support tube (20) is a spring steel cylinder with a continuous "W"-shaped cross section, the second clamping rod (23) is a "T"-shaped rod and one side of the second clamping rod (23) is an inclined surface, and the third support tube (24) is a spring steel cylinder with a continuous "W"-shaped cross section.

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