Cutting mechanism for fire-resistant cable under fire hazard condition

Abstract

The utility model relates to the technical field of cable quality inspection, in particular to a cutting mechanism for a fire-resistant cable under a fire hazard condition, which comprises a cutter I and a cutter II which are respectively arranged on two sides of a fire-resistant cable body, and cutting edges of the cutter I and the cutter II are arranged in a staggered manner. The first cutter and the second cutter are both connected with the corresponding swing seats below through two swing rods, the width of the second cutter is smaller than the distance between the two swing rods on the first cutter on the other side, and when the device is used, the two swing seats are driven by the driving part to turn over oppositely, so that the first cutter and the second cutter are driven by the swing rods to turn over synchronously and oppositely. According to the cable cutting device, the fire-resistant cable body located in the middle is automatically cut, the cut cable is pushed in the opposite directions of the two sides respectively, in the state that the fire-resistant cable body is positioned and clamped through the rotating plate, it can be guaranteed that a certain safe distance is kept between the upper fracture and the lower fracture of the cut cable, and the breakdown condition of a circuit is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cable quality inspection technology, and in particular to a cutting mechanism for fire-resistant cables under fire conditions. Background Technology

[0002] In the event of a fire, although fire-resistant cables possess certain fire-resistant properties, the outer insulation layer may still be damaged, exposing the internal conductors. If these conductors are not de-energized in time, the environment may become humid under fire sprinkler or other firefighting measures, posing a serious risk of electric shock to personnel attempting to escape or enter the fire scene for rescue. Therefore, before using fire-resistant cables, it is usually necessary to assess the timeliness of cutting the cables in the event of a fire to protect the safety of on-site personnel and rescue workers. Current assessment processes typically involve manual cutting, where operators directly cut the cable with electrician's scissors with insulated handles. However, even after manual cutting, circuit breakdown may still occur at the break point, leaving the circuit still conductive, and the risk of electric shock cannot be completely eliminated. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a cutting mechanism for fire-resistant cables under fire conditions, so as to solve the technical problem that after manual cutting, circuit breakdown may still occur at the break point, resulting in the circuit still being conductive and the risk of electric shock cannot be completely eliminated.

[0004] To achieve the above objectives, this utility model provides a cutting mechanism for fire-resistant cables under fire conditions, comprising a first cutter and a second cutter respectively disposed on both sides of the fire-resistant cable body. The cutting edges of the first cutter and the second cutter are staggered. Both the first cutter and the second cutter are connected to their respective lower swing seats via two swing rods. The width of the second cutter is smaller than the distance between the two swing rods on the first cutter on the other side. The cutting mechanism further includes:

[0005] A detachable partition box is installed in the area where the fire-resistant cable body is installed, with the fire-resistant cable body passing through the middle of the partition box;

[0006] Rotate the rotating plate located at the bottom of the partition box;

[0007] The drive unit is used to drive the two swing seats to flip in opposite directions and to drive the rotating plate to close the partition box.

[0008] Furthermore, the partition box has an extension section at the bottom, and both the upper and lower ends of the partition box are provided with cover plates.

[0009] Furthermore, the drive unit includes:

[0010] The drive motor is located within the extended section;

[0011] A mounting base is provided on the cover plate below, and the swing seat is rotatably mounted on the mounting base;

[0012] The drive wheel is installed at the output end of the drive motor, and the other side of the drive wheel is connected to a swing seat;

[0013] A driven wheel is provided at the other end of the swing seat, and the driven wheel meshes with the driving wheel;

[0014] A driven wheel two is provided on one side of the rotating plate, and the driven wheel two meshes with the driving wheel.

[0015] Furthermore, a gap is provided between the driven wheel one and the driven wheel two.

[0016] Furthermore, the upper end of the swing rod is a threaded section, and the first cutter and the second cutter are adjustablely mounted on the threaded section via a locking nut.

[0017] Furthermore, the upper end of the cutter is provided with a deflector plate.

[0018] Furthermore, the lower end of the second cutter is provided with a second deflector.

[0019] Furthermore, each of the two swing seats is provided with a spring at its side end, and the end faces of the two springs abut against each other.

[0020] The beneficial effects of this utility model are as follows: In use, the two swing seats are driven by the drive unit to rotate in opposite directions, so that the swing rod drives the first cutter and the second cutter to rotate in opposite directions synchronously, thereby automatically cutting the fire-resistant cable body located in the middle, and pushing the cut cable in opposite directions to both sides. When the rotating plate positions and clamps the fire-resistant cable body, it can ensure that the upper and lower cut ends of the cable are kept at a certain safe distance, so as to avoid circuit breakdown. Attached Figure Description

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

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the partition box in this utility model;

[0024] Figure 3 This is a schematic diagram showing the state where the drive unit is not activated in this utility model;

[0025] Figure 4 This is an assembly diagram of some structures in this utility model;

[0026] Figure 5 This is a schematic diagram showing the state in which the fire-resistant cable body is placed between cutter one and cutter two in this utility model.

[0027] The diagram is marked as follows:

[0028] 1. Fire-resistant cable body; 2. Cutter 1; 3. Cutter 2; 4. Swing rod; 5. Swing seat; 6. Partition box; 7. Rotating plate; 8. Extending section; 9. Drive motor; 10. Mounting base; 11. Drive wheel; 12. Driven wheel 1; 13. Driven wheel 2; 14. Paddle plate 1; 15. Paddle plate 2; 16. Spring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] The first aspect of this utility model provides a cutting mechanism for fire-resistant cables under fire conditions, such as... Figure 1-5 As shown, the device includes a first cutter 2 and a second cutter 3 respectively located on both sides of the fire-resistant cable body 1. The cutting edges of the first cutter 2 and the second cutter 3 are staggered. Both the first cutter 2 and the second cutter 3 are connected to their respective swing seats 5 via two swing rods 4. The width of the second cutter 3 is smaller than the distance between the two swing rods 4 on the first cutter 2 on the other side. The cutting mechanism also includes:

[0032] A detachable partition box 6 is installed in the installation area of ​​the fire-resistant cable body 1, with the fire-resistant cable body 1 passing through the middle of the partition box 6;

[0033] Rotate the rotating plate 7 located at the bottom of the partition box 6;

[0034] The drive unit is used to drive the two swing seats 5 to flip in opposite directions and to drive the rotating plate 7 to close the partition box 6.

[0035] In this embodiment, during use, the two swing seats 5 are driven by the drive unit to rotate in opposite directions, so that the first cutter 2 and the second cutter 3 are driven by the swing rod 4 to rotate in opposite directions synchronously, thereby automatically cutting the fire-resistant cable body 1 located in the middle. After cutting, since the width of the second cutter 3 is smaller than the distance between the two swing rods 4 on the other side of the first cutter 2, the second cutter 3 will continue to push the lower cut cable into the distance between the two swing rods 4 on the other side of the first cutter 2, while the first cutter 2 will push the upper cut cable to the opposite side. When the rotating plate 7 is positioned and clamping the fire-resistant cable body 1, it can be ensured that the upper and lower cut ends of the cable are kept at a certain safe distance.

[0036] In this embodiment, as Figure 1 As shown, the lower part of the partition box 6 is provided with an extension section 8, and both the upper and lower ends of the partition box 6 are provided with cover plates to prevent the high temperature generated by combustion from affecting the driving effect of the drive unit.

[0037] In this embodiment, as Figure 1 , Figure 2 As shown, the drive unit includes:

[0038] The drive motor 9 is located inside the extended section 8;

[0039] Mounting seat 10 is provided on the cover plate below, and swing seat 5 is rotatably mounted on mounting seat 10;

[0040] The drive wheel 11 is installed at the output end of the drive motor 9, and the other side of the drive wheel 11 is connected to a swing seat 5.

[0041] A driven wheel 12 is located at the side end of another swing seat 5, and the driven wheel 12 meshes with the driving wheel 11;

[0042] A driven wheel 13 is provided on one side of the rotating plate 7, and the driven wheel 13 meshes with the driving wheel 11;

[0043] Specifically, the output of the drive motor 9 drives the drive wheel 11 to rotate, which in turn drives the two swing seats 5 on both sides to rotate in opposite directions via the driven wheel 12 meshing with the drive wheel 11. Then, the swing rod 4 drives the cutter 2 and cutter 3 to rotate in opposite directions synchronously. During the rotation of the drive wheel 11, the driven wheel 13 also drives the rotating plate 7 to rotate, thereby positioning and clamping the fire-resistant cable body 1 on the partition box 6.

[0044] In this embodiment, as Figure 2As shown, the driven wheel 12 and driven wheel 13 are separated by a gap, meaning that they will not make rigid contact, and the rotation of driven wheel 12 will not affect the rotation of driven wheel 13.

[0045] In this embodiment, as Figure 2 As shown, the upper end of the swing rod 4 is a threaded section. Cutter 1 2 and Cutter 2 3 are adjustablely mounted on the threaded section by locking nuts. By tightening or loosening the corresponding locking nuts, the installation height of Cutter 1 2 and Cutter 2 3 on the swing rod 4 can be adjusted, so that Cutter 1 2 and Cutter 2 3 can smoothly and completely cut the fire-resistant cable body 1 from both sides.

[0046] In this embodiment, as Figure 5 As shown, the upper end of the cutter 12 is provided with a baffle plate 14, and the lower end of the cutter 23 is provided with a baffle plate 25. The baffle plate 14 and the baffle plate 25 further increase the spacing of the cut surfaces of the fire-resistant cable body 1 and keep the fire-resistant cable body 1 more stable after cutting.

[0047] In this embodiment, as Figure 3 As shown, each of the two swing seats 5 has a spring 16 on its side. The end faces of the two springs 16 abut each other, so that when the drive unit is not activated, the distance between the two swing seats 5 is maintained by the two springs 16 with their end faces abutting each other, so as to prevent the fire-resistant cable body 1 from being worn or cut by the cutting edges of the first cutter 2 and the second cutter 3 in the absence of a fire.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0049] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting mechanism for fire resistant cable under fire conditions, comprising a cutter one (2) and a cutter two (3) respectively arranged on both sides of a fire resistant cable body (1), the cutting edges of said cutter one (2) and said cutter two (3) are arranged in staggered manner, characterized in that, The cutter one (2) and the cutter two (3) are connected with the swing seat (5) below through two swing rods (4), the width of the cutter two (3) is less than the interval of the two swing rods (4) on the other side cutter one (2), the cutting mechanism further comprises: The partition box (6) is detachably arranged in the installation area of the fireproof cable body (1), the fireproof cable body (1) penetrates the middle part of the partition box (6); The rotating plate (7) is arranged in the lower part of the partition box (6); The driving part is used for driving the two swing seats (5) to flip towards each other and driving the rotating plate (7) to close the partition box (6).

2. A cut-off mechanism for a fire-resistant cable under fire conditions according to claim 1, characterized in that The lower part of the partition box (6) is provided with an extension section (8), and the upper and lower ends of the partition box (6) are provided with cover plates.

3. A cut-off mechanism for a fire-resistant cable under fire conditions according to claim 2, characterized in that The driving part comprises: The driving motor (9) is arranged in the extension section (8); The mounting seat (10) is arranged on the cover plate below, and the swing seat (5) is rotatably arranged on the mounting seat (10); The driving motor (9) is arranged in the extension section (8); The driving motor (9) is arranged in the extension section (8); The driving motor (9) is arranged in the extension section (8); 4. A cut-off mechanism for a fire-resistant cable under fire conditions according to claim 3, characterized in that The driving motor (9) is arranged in the extension section (8).

5. The fire-resistant cable disconnect mechanism of claim 1, wherein, The gap is arranged between the driving wheel one (12) and the driving wheel two (13).

6. The fire-resistant cable disconnect mechanism of claim 1, wherein, The upper end of the swing rod (4) is a threaded section, and the cutter one (2) and the cutter two (3) are adjustably arranged on the threaded section through the locking nut.

7. The fire-resistant cable disconnect mechanism of claim 1, wherein, The upper end of the cutter one (2) is provided with the first push plate (14).

8. The fire resistant cable disconnect mechanism of claim 1, wherein, The lower end of the cutter two (3) is provided with the second push plate (15). The side end of the two swing seats (5) is provided with the spring sheet (16), and the end faces of the two spring sheets (16) are abutted.

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