Transformer substation relay protection screen cabinet cable tensioning device

Abstract

The utility model relates to the technical field of cable tensioning devices, in particular to a cable tensioning device for a relay protection screen cabinet of a transformer substation, which improves the operation convenience of tensioning the cable of the relay protection screen cabinet of the transformer substation and improves the installation stability of the cable. Comprising a base and a first supporting seat, and the first supporting seat is arranged on the outer side wall of the base; the cable clamping device further comprises a clamping device, a supporting device, a limiting device, a first guide wheel, a second guide wheel and a third guide wheel, the first guide wheel is rotationally installed on the outer side wall of the first supporting base, the first supporting base is provided with the limiting device, the limiting device is used for limiting a cable, and the second guide wheel is rotationally installed on the outer side wall of the clamping device. The clamping device is arranged on the base and used for clamping and fixing a cable, the third guide wheel is rotationally installed on the supporting device, and the supporting device is used for driving the third guide wheel to ascend and descend.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tensioning devices, in particular to a cable tensioning device for a relay protection panel cabinet in a substation. Background Technique

[0002] In a substation, the relay protection panel cabinet, as an important carrier for protection and control equipment, undertakes the important tasks of monitoring the operating state of the power system, promptly discovering and isolating faults. In order to improve the reliability and convenience of cable fixing in the relay protection panel cabinet of the substation, it is usually necessary to tension and fix the cables.

[0003] Currently, in existing cable fixing devices, such as the patent with the authorization announcement number CN204760925U, this new type is to solve the problems of reliable, beautiful, convenient and practical fixing of cables with different outer diameters during the construction of secondary cable fixing for relay protection panels. The cable fixing device for the relay protection panel includes a cable tensioning device for the relay protection panel, a cable pressing device for the relay protection panel, a pressing plate, long screws and nuts; the cable tensioning device for the relay protection panel is used to tension the cable until it is close to the pressing plate.

[0004] However, it is found during the use of this device that it is not convenient to tension the cables with surplus length, which easily leads to the situation that the cables are loose and swing greatly after erection, reducing the installation stability of the cables. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a cable tensioning device for a relay protection panel cabinet in a substation, which improves the operation convenience of tensioning the cables of the relay protection panel cabinet in the substation and improves the installation stability of the cables.

[0006] A cable tensioning device for a substation relay protection panel cabinet of the present utility model includes a base and a first support seat, and the first support seat is arranged on the outer side wall of the base; it further includes a clamping device, a support device, a limiting device, a first guide wheel, a second guide wheel and a third guide wheel. The first guide wheel is rotatably installed on the outer side wall of the first support seat, and a limiting device is arranged on the first support seat for limiting the cable. The second guide wheel is rotatably installed on the outer side wall of the clamping device, and the clamping device is arranged on the base for clamping and fixing the cable. The third guide wheel is rotatably installed on the support device, and the support device is used to drive the third guide wheel to move up and down; the cable is conveyed above the first guide wheel and then below the third guide wheel, and then the cable is guided and conveyed to the upper part of the second guide wheel through the lower part of the third guide wheel, and the cable is guided and conveyed to the clamping device through the upper part of the second guide wheel, and the right part of the cable is clamped and fixed by the clamping device. When the support device drives the third guide wheel to move downward, the third guide wheel presses the cable downward. Since the right part of the cable is fixed by the clamping device, the left part of the cable is tightened by the support of the first guide wheel, improving the operation convenience of the device for tensioning the cables of the substation relay protection panel cabinet and improving the installation stability of the cables.

[0007] Preferably, the support device includes a second support seat, a slider, multiple groups of telescopic rods, multiple groups of first springs, a stud and a first handwheel. The second support seat is arranged at the top of the base. A guide rail is arranged on the second support seat. The slider is slidably installed on the guide rail up and down. The tops of multiple groups of telescopic rods are all connected to the outer side wall of the slider, and the bottoms of multiple groups of telescopic rods are all connected to the top of the third guide wheel. Multiple groups of first springs are respectively sleeved on the outer side walls of multiple groups of telescopic rods. The stud is screwed on the upper part of the second support seat, and the bottom end of the stud is rotatably connected to the top of the slider. The first handwheel is installed at the top of the stud; by grasping the first handwheel to drive the stud to rotate, after the stud rotates, it drives the slider to move up or down, so that the slider drives the third guide wheel to move up and down, improving the convenience of moving and adjusting the third guide wheel to tension the cable. By arranging multiple groups of telescopic rods and multiple groups of first springs, the elastic force of the third guide wheel pressing on the cable is increased, improving the protection effect on the cable.

[0008] Preferably, the clamping device includes a third support seat, two groups of clamping members, a lead screw and a second handwheel. The third support seat is installed at the top of the base. The second guide wheel is installed on the outer side wall of the third support seat. A guide groove is arranged at the top of the third support seat. Two groups of clamping members are both slidably installed on the guide groove. The lead screw is rotatably installed on the third support seat. Two groups of clamping members are respectively screwed on the outer side wall of the lead screw. The second handwheel is installed at the end of the lead screw; the right part of the cable is conveyed between two groups of clamping members, and by grasping the second handwheel to rotate the lead screw, two groups of lead screws drive two groups of clamping members to move closer to each other, so that two groups of clamping members clamp and fix the right part of the cable, improving the convenience of tightening the left part of the cable.

[0009] Preferably, the limiting device includes a fourth guide wheel, a plurality of guide columns and a plurality of second springs. The fourth guide wheel is installed at the bottom ends of the plurality of guide columns. A groove is provided on the fourth guide wheel. The plurality of guide columns are all slidably installed on the first support seat. The plurality of second springs are respectively sleeved on the outer side walls of the plurality of guide columns. When the cable is conveyed above the first guide wheel, the fourth guide wheel is pushed downward by the plurality of second springs, so that the groove of the fourth guide wheel is sleeved outside the cable, thereby limiting the cable by the fourth guide wheel and improving the stability of the cable position.

[0010] Preferably, it further includes a kit and a setscrew. The kit is installed at the top end of the second support seat. The stud rotates through the inside of the kit, and the setscrew is screwed onto the kit. By rotating the setscrew, the end of the setscrew is pressed against the outer side wall of the stud to fix the rotation of the stud.

[0011] Preferably, it further includes a fixing seat, and the fixing seat is arranged at the bottom end of the base. By providing the fixing seat, the convenience of installing and positioning the base is improved.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The cable is conveyed above the first guide wheel to below the third guide wheel, and then the cable is guided and conveyed to above the second guide wheel through the lower part of the third guide wheel, and the cable is guided and conveyed to the clamping device through above the second guide wheel. The right part of the cable is clamped and fixed by the clamping device. When the support device drives the third guide wheel to move downward, the third guide wheel presses the cable downward. Since the right part of the cable is fixed by the clamping device, the left part of the cable is tightened by the support of the first guide wheel, improving the operation convenience of the device for tightening the cables of the substation relay protection panel cabinets and improving the installation stability of the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an isometric structural schematic diagram of the present utility model;

[0014] Figure 2 is an isometric structural schematic diagram of the connection between the base and the first support seat, etc.;

[0015] Figure 3 is an isometric partial structural schematic diagram of the connection between the stud and the first handwheel, etc.;

[0016] Figure 4 is an isometric partial structural schematic diagram of the connection between the third support seat and the clamping member, etc.;

[0017] Figure 5 is an isometric partial structural schematic diagram of the connection between the fourth guide wheel and the guide column, etc.

[0018] Labels in the drawings: 1, base; 2, first support base; 3, first guide wheel; 4, second guide wheel; 5, third guide wheel; 6, second support base; 7, slider; 8, telescopic rod; 9, first spring; 10, stud; 11, first handwheel; 12, third support base; 13, clamping member; 14, lead screw; 15, second handwheel; 16, fourth guide wheel; 17, guide post; 18, second spring; 19, kit; 20, setscrew; 21, fixed base. Detailed implementation mode

[0019] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] Embodiment 1

[0021] As Figures 1 to 5 shown, a cable tensioning device for a substation relay protection panel cabinet of the present invention includes a base 1 and a first support base 2, and the first support base 2 is arranged on the outer side wall of the base 1; it further includes a clamping device, a support device, a limiting device, a first guide wheel 3, a second guide wheel 4 and a third guide wheel 5. The first guide wheel 3 is rotatably installed on the outer side wall of the first support base 2, and a limiting device is arranged on the first support base 2 for limiting the cable. The second guide wheel 4 is rotatably installed on the outer side wall of the clamping device, the clamping device is arranged on the base 1, and the clamping device is used for clamping and fixing the cable. The third guide wheel 5 is rotatably installed on the support device, and the support device is used for driving the third guide wheel 5 to move up and down;

[0022] As Figure 3 shown, the support device includes a second support base 6, a slider 7, multiple groups of telescopic rods 8, multiple groups of first springs 9, a stud 10 and a first handwheel 11. The second support base 6 is arranged at the top of the base 1, a guide rail is arranged on the second support base 6, the slider 7 is slidably installed up and down on the guide rail, the tops of multiple groups of telescopic rods 8 are respectively connected to the outer side wall of the slider 7, the bottoms of multiple groups of telescopic rods 8 are respectively connected to the top of the third guide wheel 5, multiple groups of first springs 9 are respectively sleeved on the outer side walls of multiple groups of telescopic rods 8, the stud 10 is screwed on the upper part of the second support base 6, the bottom end of the stud 10 is rotatably connected to the top of the slider 7, and the first handwheel 11 is installed at the top end of the stud 10;

[0023] In this embodiment, the cable is conveyed above the first guide pulley 3 and then below the third guide pulley 5. After that, the cable is guided and conveyed to the upper part of the second guide pulley 4 through the lower part of the third guide pulley 5, and then to the clamping device through the upper part of the second guide pulley 4. The right part of the cable is clamped and fixed by the clamping device. When the support device drives the third guide pulley 5 to move downward, the third guide pulley 5 presses the cable downward. Since the right part of the cable is fixed by the clamping device, the left part of the cable is tightened by the support of the first guide pulley 3, improving the operation convenience of the device for tightening the cables of the substation relay protection panel cabinets and enhancing the installation stability of the cables.

[0024] Embodiment 2

[0025] On the basis of Embodiment 1, as Figure 4 shown, the clamping device includes a third support base 12, two groups of clamping members 13, a lead screw 14 and a second handwheel 15. The third support base 12 is installed at the top end of the base 1, and the second guide pulley 4 is installed on the outer side wall of the third support base 12. A guide groove is provided at the top end of the third support base 12. The two groups of clamping members 13 are both slidably installed on the guide groove. The lead screw 14 is rotatably installed on the third support base 12. The two groups of clamping members 13 are respectively screwed on the outer side wall of the lead screw 14 in a matching manner, and the second handwheel 15 is installed at the end of the lead screw 14;

[0026] As Figure 5 shown, the limiting device includes a fourth guide pulley 16, multiple groups of guide posts 17 and multiple groups of second springs 18. The fourth guide pulley 16 is installed at the bottom ends of the multiple groups of guide posts 17. A groove is provided on the fourth guide pulley 16. The multiple groups of guide posts 17 are all slidably installed on the first support base 2, and the multiple groups of second springs 18 are respectively sleeved on the outer side walls of the multiple groups of guide posts 17 in a matching manner;

[0027] As Figure 3 shown, it further includes a kit 19 and a setscrew 20. The kit 19 is installed at the top end of the second support base 6. The stud 10 rotatably passes through the inside of the kit 19, and the setscrew 20 is screwed on the kit 19 in a matching manner;

[0028] As Figure 2 shown, it further includes a fixing base 21, and the fixing base 21 is provided at the bottom end of the base 1;

[0029] In this embodiment, the first handwheel 11 is grasped to drive the stud 10 to rotate. After the stud 10 rotates, it drives the slider 7 to move upward or downward, so that the slider 7 drives the third guide wheel 5 to move up and down, improving the convenience of moving and adjusting the third guide wheel 5 to tighten the cable. By setting multiple groups of telescopic rods 8 and multiple groups of first springs 9, the elastic force of the third guide wheel 5 pressing on the cable is increased, improving the protection effect on the cable. The right part of the cable is conveyed through between two groups of clamping members 13. By grasping the second handwheel 15 to rotate the lead screw 14, the two lead screws 14 drive the two groups of clamping members 13 to move closer to each other, so that the two groups of clamping members 13 clamp and fix the right part of the cable, improving the convenience of tightening the left part of the cable.

[0030] For a cable tightening device of a substation relay protection panel cabinet of the present utility model, during operation, the cable is conveyed above the first guide wheel 3 and below the third guide wheel 5, and then the lower part of the third guide wheel 5 guides the cable to the upper part of the second guide wheel 4. The upper part of the second guide wheel 4 guides the cable to the clamping device, and the clamping device clamps and fixes the right part of the cable. When the support device drives the third guide wheel 5 to move downward, the third guide wheel 5 presses the cable downward. Since the right part of the cable is fixed by the clamping device, the left part of the cable is tightened by the support of the first guide wheel 3.

[0031] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A cable tensioning device for a relay protection panel cabinet in a substation, comprising a base (1) and a first support base (2), the first support base (2) being arranged on the outer side wall of the base (1); characterized in that, It also includes a clamping device, a supporting device, a limiting device, a first guide wheel (3), a second guide wheel (4) and a third guide wheel (5). The first guide wheel (3) is rotatably installed on the outer side wall of the first support base (2). A limiting device is arranged on the first support base (2), and the limiting device is used for limiting the cable. The second guide wheel (4) is rotatably installed on the outer side wall of the clamping device. The clamping device is arranged on the base (1), and the clamping device is used for clamping and fixing the cable. The third guide wheel (5) is rotatably installed on the supporting device, and the supporting device is used for driving the third guide wheel (5) to move up and down.

2. The cable tensioning device for a substation relay protection panel cabinet according to claim 1, wherein The supporting device includes a second support base (6), a slider (7), multiple groups of telescopic rods (8), multiple groups of first springs (9), a stud (10) and a first handwheel (11). The second support base (6) is arranged at the top end of the base (1). A guide rail is arranged on the second support base (6). The slider (7) is slidably installed up and down on the guide rail. The top ends of multiple groups of telescopic rods (8) are respectively connected to the outer side wall of the slider (7). The bottom ends of multiple groups of telescopic rods (8) are respectively connected to the top end of the third guide wheel (5). Multiple groups of first springs (9) are respectively sleeved on the outer side walls of multiple groups of telescopic rods (8). The stud (10) is screwed on the upper part of the second support base (6). The bottom end of the stud (10) is rotatably connected to the top end of the slider (7). The first handwheel (11) is installed at the top end of the stud (10).

3. The cable tensioning device for a substation relay protection panel cabinet according to claim 1, characterized in that, The clamping device includes a third support base (12), two groups of clamping members (13), a lead screw (14) and a second handwheel (15). The third support base (12) is installed at the top end of the base (1). The second guide wheel (4) is installed on the outer side wall of the third support base (12). A guide groove is arranged at the top end of the third support base (12). Two groups of clamping members (13) are both slidably installed on the guide groove. The lead screw (14) is rotatably installed on the third support base (12). Two groups of clamping members (13) are respectively screwed on the outer side wall of the lead screw (14). The second handwheel (15) is installed at the end of the lead screw (14).

4. The cable tensioning device for a substation relay protection panel cabinet according to claim 1, characterized in that, The limiting device includes a fourth guide wheel (16), multiple groups of guide posts (17) and multiple groups of second springs (18). The fourth guide wheel (16) is installed at the bottom ends of multiple groups of guide posts (17). A groove is arranged on the fourth guide wheel (16). Multiple groups of guide posts (17) are all slidably installed on the first support base (2). Multiple groups of second springs (18) are respectively sleeved on the outer side walls of multiple groups of guide posts (17).

5. The cable tensioning device for a substation relay protection panel cabinet according to claim 2, characterized in that, It also includes a kit (19) and a setscrew (20). The kit (19) is installed at the top end of the second support base (6). The stud (10) rotatably passes through the inside of the kit (19). The setscrew (20) is screwed on the kit (19).

6. The cable tensioning device for a substation relay protection panel cabinet according to claim 1, characterized in that, It also includes a fixed seat (21), and the fixed seat (21) is arranged at the bottom end of the base (1).

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