Cable switching box

Abstract

The utility model discloses a cable transfer box, which comprises a supporting base, a bottom box, a top cover, a guide rail strip and a row terminal, the supporting base is horizontally arranged, the base is in a U groove shape and is horizontally arranged in the middle of the upper end of the supporting base along the left-right direction, the front side and the rear side of the base are communicated, and the top cover is in a groove shape. A notch of the top cover faces downwards and is buckled at the upper end of the bottom box so that the top cover and the bottom box can jointly define a cavity with threading holes in the lower portions of the front end and the rear end, the guide rail strip is arranged in the cavity and horizontally arranged in the middle of the inner bottom wall of the bottom box in the left-right direction, and the row terminal is located in the cavity and installed on the guide rail strip. At the moment, gaps are formed between the front side and the rear side of the bottom wall of the bottom box and the front side and the rear side of the notch of the top cover, at the moment, the two gaps form wire penetrating holes, the two wire penetrating holes are used for cables to be switched to penetrate into the cavity respectively and are electrically connected through the row terminals, and the cable connector is simple in structure, attractive in structure and good in safety at the same time.

Description

Technical Field

[0001] The utility model belongs to the field of circuit switching equipment, in particular to a cable switching box. Background Art

[0002] The excitation cabinet is a kind of equipment used in power plants, usually including rectifier, regulator and demagnetization cabinets. As a functional system, the excitation cabinet needs external power supply, including AC380V fan cooling, primary excitation power supply, AC220VUPS uninterruptible power supply, DC220 / 110V DC power supply and AC380V maintenance power supply. For some projects, the power supply cable provided by the owner's design institute is thicker, far greater than the actual use requirements. The thick cable leads to a relatively large turning radius, and the actual cabinet space often cannot meet the cable with a large turning radius. Therefore, it is necessary to design a cable transfer box for this situation. The thick cable outside the cabinet is connected to the cable transfer box terminal in the excitation cabinet, and the other side of the terminal is connected to the cable of suitable wire diameter. However, there is no corresponding transfer box product on the market. Although the document number is CN203056333U "A Signal Transfer Measurement Box", it can also realize the transfer of cables, but there is a risk of cable crossing and short circuit. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a cable transfer box which has a simple structure and can be used for transferring power cables of excitation cabinets.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a cable transfer box, comprising a supporting base, a bottom box, a top cover, a guide bar and a row of terminals, the supporting base is horizontally arranged, the base is in a U-groove shape, and is horizontally installed in the middle of the upper end of the supporting base along the left-right direction, and its front and rear sides are connected, the top cover is in a groove shape, the notch of the top cover faces downward and is buckled on the upper end of the bottom box to enclose together with the bottom box to form a cavity with threading holes at the lower part of the front and rear ends, the guide bar is arranged in the cavity, and is horizontally arranged in the middle of the bottom wall of the bottom box along the left-right direction, and the row of terminals is located in the cavity and installed on the guide bar.

[0005] The beneficial effect of the above technical solution is that: since the top cover is buckled on the upper end of the bottom box, there are gaps between the front and rear sides of the bottom wall of the bottom box and the front and rear sides of the slot of the top cover. At this time, the two gaps constitute threading holes, and the two threading holes are respectively used for the cables to be transferred to pass into the cavity, and are electrically connected by the row terminals. The structure is simple, beautiful, and safe.

[0006] In the above technical solution, the height at which the top cover is buckled on the upper end of the bottom box is adjustable to adjust the height of the cavity.

[0007] The beneficial effect of the above technical solution is that the size of the threading hole can be adjusted to meet the requirements of cables with different diameters.

[0008] In the above technical solution, threaded holes are provided on the groove walls on the left and right sides of the bottom box, and strip holes are provided on the groove walls on the left and right sides of the top cover, and the strip holes are aligned with the threaded holes and a fastening bolt is inserted into them. The fastening bolt is tightened to fasten the top cover to the upper end of the bottom box, and the fastening bolt is loosened to adjust the height of the top cover relative to the bottom box.

[0009] The beneficial effect of the above technical solution is that its structure is simple, so that the height of the top cover relative to the bottom box can be flexibly adjusted.

[0010] In the above technical solution, both sides of the bottom box are provided with a plurality of threaded holes spaced apart in the front-to-back direction, the number of strip holes on both sides of the top cover is consistent with the number of threaded holes on the corresponding sides and are arranged accordingly, the corresponding threaded holes and strip holes are aligned and a fastening bolt is inserted.

[0011] The beneficial effect of the above technical solution is that the stability of the connection between the bottom box and the top cover is improved.

[0012] In the above technical solution, the front and rear sides of the bottom wall of the bottom box are folded upward to form a folding groove with a notch facing the middle of the bottom box, and the upper end of the folding groove is provided with a plurality of holes at intervals along the left and right directions for cable binding.

[0013] The beneficial effect of the above technical solution is that the cable can be tied to the bottom box to prevent the cable from shaking and becoming loose.

[0014] The front and rear sides of the top cover notch in the above technical solution are both provided with curling edges.

[0015] The beneficial effect of the above technical solution is that when the front and rear sides of the top cover notch contact the cable, no shear force will be generated on the insulation of the cable to cause damage.

[0016] The left and right ends of the support base in the above technical solution are bent outward and downward to form a step-shaped connecting portion.

[0017] The beneficial effect of the above technical solution is that the support base can be conveniently assembled on the excitation cabinet.

[0018] In the above technical solution, a plurality of studs are protruding from the upper end of the middle part of the support base and are distributed at intervals. A plurality of connecting holes are arranged at intervals on the bottom wall of the base box. The plurality of connecting holes correspond to the plurality of studs one by one and are aligned with each other. The upper end of each stud passes through the corresponding connecting hole and at least one nut is installed on the upper end of the stud to install the base box on the upper end of the support base.

[0019] The beneficial effect of the above technical solution is that the bottom box can be conveniently installed on the supporting base.

[0020] In the above technical solution, four studs and four connecting holes are provided, and the four studs are distributed in a rectangular shape in the middle of the support base.

[0021] The beneficial effects of the above technical solution are: its structure is simple and its stability during installation is good.

[0022] The terminal row in the above technical solution has a plurality of connection terminals arranged along the left-right direction.

[0023] The beneficial effect of the above technical solution is that it can meet the needs of switching multiple cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a vertical view of the cable transfer box according to an embodiment of the utility model;

[0025] Figure 2 A side view of the front or rear side of the cable adapter box according to an embodiment of the utility model;

[0026] Figure 3 A side view of the left or right side of the cable transfer box according to the embodiment of the utility model;

[0027] Figure 4 It is a cross-sectional view of the cable transfer box according to an embodiment of the utility model;

[0028] Figure 5 It is a vertical view of the support base described in the embodiment of the utility model;

[0029] Figure 6 It is a vertical view of the bottom box described in the embodiment of the utility model;

[0030] Figure 7 It is a vertical view of the top cover described in the embodiment of the utility model;

[0031] Figure 8 It is a vertical view of the cable transfer box in the embodiment of the utility model without the top cover;

[0032] Fig. 9 It is a side view of the connection between the cable and the cable transfer box in the embodiment of the utility model;

[0033] Fig.10 It is a top view of the connection between the cable and the cable adapter box in the embodiment of the utility model.

[0034] In the figure: 1 supporting base; 11 connecting part; 12 stud; 2 bottom box; 21 threaded hole; 22 folding groove; 221 eyelet; 23 connecting hole; 3 top cover; 31 strip hole; 32 curling edge; 4 guide rail; 5 row of terminals; 51 wiring terminal; 6 cavity; 61 threading hole; 7 fastening bolt; 8 nut; 9 cable. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be more clearly described. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0036] like Figure 1-Figure 10 As shown, in this embodiment, a cable transfer box includes a support base 1, a bottom box 2, a top cover 3, a guide rail 4 and a row of terminals 5. The support base 1 is horizontally arranged, and the base is U-groove-shaped, which is horizontally installed in the middle of the upper end of the support base 1 along the left-right direction, and its front and rear sides are connected, and the top cover 3 is a groove body shape, and the notch of the top cover 3 faces downward and is buckled on the upper end of the bottom box 2 to enclose the bottom box 2 together with the bottom box 2 to form a cavity 6 with a threading hole 61 at the lower part of the front and rear ends, and the guide rail 4 is arranged In the cavity 6, and horizontally arranged in the left-right direction in the middle of the inner bottom wall of the bottom box 2, the row terminal 5 is located in the cavity 6 and installed on the guide rail 4. Since the top cover is buckled on the upper end of the bottom box, the front and rear sides of the bottom wall of the bottom box have gaps with the front and rear sides of the notch of the top cover. At this time, the two gaps constitute threading holes, and the two threading holes are respectively used for the cables 9 to be transferred to pass into the cavity, and are electrically connected by the row terminal. The structure is simple, beautiful, and safe. Preferably, the groove walls on both sides of the bottom box in this embodiment extend into the groove with the top cover.

[0037] In this embodiment, the cables inserted into the cavity through the two threading holes are electrically connected through the row terminals. The guide rail is a groove specially used for clamping the row terminals, which belongs to the prior art and will not be described here.

[0038] like Figure 1-Figure 3As shown, in the above technical solution, the height of the top cover 3 buckled on the upper end of the bottom box 2 is adjustable to adjust the height of the cavity 6, so that the size of the threading hole can be adjusted to meet the insertion of cables of different diameters. Specifically, the groove walls on the left and right sides of the bottom box 2 are provided with threaded holes 21 penetrating therethrough, and the groove walls on the left and right sides of the top cover 3 are provided with strip holes 31 penetrating therethrough, and the strip holes 31 are aligned with the threaded holes 21 and a fastening bolt 7 is inserted therein, and the fastening bolt 7 is tightened to fasten the top cover 3 to the upper end of the bottom box 2, and the fastening bolt 7 is loosened to adjust the height of the top cover 3 relative to the bottom box 2. The structure is simple, so that the height of the top cover relative to the bottom box can be flexibly adjusted.

[0039] Preferably, Figure 7 As shown, the lower end of the strip-shaped hole can directly pass through the notch side of the top cover.

[0040] In the above technical solution, both sides of the bottom box 2 are provided with a plurality of threaded holes 21 at intervals along the front-to-back direction, and the number of the strip holes 31 on both sides of the top cover 3 is consistent with the number of the threaded holes 21 on the corresponding sides and is arranged accordingly, and the corresponding threaded holes 21 and strip holes 31 are aligned and a fastening bolt 7 is inserted, so that the stability of the connection between the bottom box and the top cover is better.

[0041] Preferably, two threaded holes are respectively provided on both sides of the bottom box.

[0042] like Figure 4 As shown, the front and rear sides of the bottom wall of the bottom box 2 in the above technical solution are folded upward to form a folding groove 22 with a notch facing the middle part of the bottom box 2, and the upper end of the folding groove 22 is provided with a plurality of holes 221 spaced apart along the left and right directions, and the holes 221 are used for cable binding (after the cable passes through the corresponding threading hole, the cable is bound by a cable tie passing through two adjacent holes), so that the cable 9 can be tied to the bottom box to prevent the cable from shaking and loosening.

[0043] like Figure 4 As shown, the front and rear sides of the notch of the top cover 3 in the above technical solution are provided with curling edges 32 (which can be directly turned inward), so that when the front and rear sides of the notch of the top cover come into contact with the cable, no shear force is generated on the insulation skin of the cable to cause damage.

[0044] In this embodiment, the height of the top cover relative to the bottom box can be adjusted until the threading hole is just large enough for the cable to pass through.

[0045] like Figure 1 , Figure 2 and Figure 5 As shown, the left and right ends of the support base 1 in the above technical solution are bent outward and downward to form a step-shaped connecting portion 11, so that the support base can be easily assembled on the excitation cabinet.

[0046] like Figure 4-Figure 6 and Figure 8 As shown, in the above technical solution, a plurality of studs 12 are protruded from the upper end of the middle part of the support base 1, and a plurality of connecting holes 23 are arranged at intervals on the bottom wall of the bottom box 2. The plurality of connecting holes 23 correspond to the plurality of studs 12 one by one and are aligned with each other. The upper end of each stud 12 passes through the corresponding connecting hole 23 and at least one nut 8 is installed on the upper end of the stud 12 to install the bottom box 2 on the upper end of the support base 1, so that the bottom box can be conveniently installed on the support base.

[0047] In the above technical solution, four studs 12 and four connecting holes 23 are provided, and the four studs 12 are distributed in a rectangular shape in the middle of the support base 1, which has a simple structure and good stability during installation.

[0048] like Figure 2 , Fig. 9 and Fig.10 As shown, the terminal row 5 in the above technical solution has a plurality of connection terminals 51 arranged along the left-right direction, so as to meet the connection requirements of multiple cables 9.

[0049] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A cable transfer box, characterized in that: The invention comprises a support base (1), a bottom box (2), a top cover (3), a guide rail (4) and a row of terminals (5), wherein the support base (1) is arranged horizontally, the base is in the shape of a U-groove, and is horizontally mounted in the middle of the upper end of the support base (1) along the left-right direction, and its front and rear sides are connected, the top cover (3) is in the shape of a groove, the notch of the top cover (3) faces downward and is buckled on the upper end of the bottom box (2) to form a cavity (6) with threading holes (61) at the lower part of the front and rear ends together with the bottom box (2), the guide rail (4) is arranged in the cavity (6), and is horizontally arranged in the middle of the inner bottom wall of the bottom box (2) along the left-right direction, and the row of terminals (5) is located in the cavity (6) and is mounted on the guide rail (4).

2. The cable transfer box according to claim 1, characterized in that: The height of the top cover (3) buckled on the upper end of the bottom box (2) is adjustable to adjust the height of the cavity (6).

3. The cable transfer box according to claim 2, characterized in that: The groove walls on the left and right sides of the bottom box (2) are provided with threaded holes (21) penetrating therethrough, and the groove walls on the left and right sides of the top cover (3) are provided with strip holes (31) penetrating therethrough, and the strip holes (31) are aligned with the threaded holes (21) and a fastening bolt (7) is inserted therein, and the fastening bolt (7) is tightened to fasten the top cover (3) to the upper end of the bottom box (2), and the fastening bolt (7) is loosened to adjust the height of the top cover (3) relative to the bottom box (2).

4. The cable transfer box according to claim 3, characterized in that: Both sides of the bottom box (2) are provided with a plurality of threaded holes (21) spaced apart in the front-to-back direction, the number of strip holes (31) on both sides of the top cover (3) is consistent with the number of threaded holes (21) on the corresponding sides and are arranged correspondingly, and the corresponding threaded holes (21) and strip holes (31) are aligned and one of the fastening bolts (7) is inserted.

5. The cable transfer box according to claim 1, characterized in that: Both front and rear sides of the bottom wall of the bottom box (2) are folded upward to form a folding groove (22) with a notch facing the middle of the bottom box (2), and a plurality of holes (221) are arranged at intervals along the left-right direction at the upper end of the folding groove (22), and the holes (221) are used for cable binding.

6. The cable transfer box according to claim 1, characterized in that: The front and rear sides of the notch of the top cover (3) are both provided with curling edges (32).

7. The cable transfer box according to claim 1, characterized in that: The left and right ends of the support base (1) are bent outward and downward to form a step-shaped connecting portion (11).

8. The cable transfer box according to claim 1, characterized in that: A plurality of studs (12) are protruded from the upper end of the middle part of the support base (1) and are distributed at intervals. A plurality of connection holes (23) are arranged at intervals on the bottom wall of the bottom box (2). The plurality of connection holes (23) correspond to the plurality of studs (12) one by one and are aligned with each other. The upper end of each stud (12) passes through the corresponding connection hole (23) and at least one nut (8) is installed on the upper end of the stud (12), so as to install the bottom box (2) on the upper end of the support base (1).

9. The cable transfer box according to claim 8, characterized in that: Four of the studs (12) and four of the connection holes (23) are provided, and the four studs (12) are distributed in a rectangular shape in the middle of the support base (1).

10. The cable transfer box according to claim 1, characterized in that: The row of terminals (5) has a plurality of connection terminals (51) arranged in the left-right direction.

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