Contact finger installation device

Abstract

The utility model discloses a contact finger installation device which comprises a plurality of supporting columns, a first fixing plate, a second fixing plate, a third fixing plate and a fourth fixing plate, the supporting columns are provided with first supporting seats and second supporting seats, the first supporting seats are provided with first extension columns and first guide rods, and the second supporting seats are provided with second extension columns and second guide rods. First connecting plates are connected to the end parts of the first extension column and the first guide rod, the first guide rod on one first supporting seat is replaced by a first screw rod, and the second fixing plate is in threaded connection with the first screw rod; the device further comprises a first driving device used for driving the first screw to rotate, second extending columns and second guide rods are arranged on the second supporting bases, the ends of the second extending columns and the ends of the second guide rods are connected with second connecting plates, the second guide rod on one second supporting base is replaced with a second screw, the fourth fixing plate is in threaded connection with the second screw, and the fourth fixing plate is in threaded connection with the second screw. And the second driving device is used for driving the second screw rod to rotate.

Description

Technical Field

[0001] This utility model relates to the field of disconnector switch technology, and specifically to a finger mounting device. Background Technology

[0002] Disconnect switches are common equipment in substations, widely present and numerous. When installing contact fingers for major repairs due to faults or maintenance, the internal structure of the contacts necessitates manual pressing of the contact fingers when replacing the disconnect switch springs. Chinese patent CN203617176U proposes a contact finger installation tool for disconnect switches. While this tool makes contact finger installation more convenient and labor-saving, in practice, it requires manually opening the first, second, third, and fourth fixing plates to insert the end of the contact finger. Then, tightening the nuts closes the fixing plates. Due to limited manpower, multiple nuts cannot be tightened manually simultaneously; usually, only one side is tightened first. When closing the plates, uneven force may cause deformation or loosening of the contact finger, affecting installation efficiency. Therefore, there is room for improvement. Utility Model Content

[0003] The purpose of this invention is to provide a finger mounting device to solve the problems mentioned in the background art.

[0004] To solve the above technical problems, this utility model adopts the following technical solution: a finger mounting device, comprising a plurality of support columns, a first fixing plate, a second fixing plate, a third fixing plate, and a fourth fixing plate. Each support column has a first support base and a second support base at both ends. The first support base has a first extension column and a first guide rod. The first fixing plate is slidably connected to the first extension column, and the second fixing plate is slidably connected to the first extension column and the first guide rod. The ends of both the first extension column and the first guide rod are connected to a first connecting plate. The first guide rod on one of the first support bases is replaced with a first screw, and the two ends of the first screw are respectively connected to the first support base and the first connecting plate. The system includes a rotating connection between the connecting plate and the second fixing plate, and a threaded connection between the second fixing plate and the first screw. It also includes a first driving device for driving the first screw to rotate. The second support base has a second extension column and a second guide rod. The third fixing plate is slidably connected to the second extension column, and the fourth fixing plate is slidably connected to the second extension column and the second guide rod. The ends of the second extension column and the second guide rod are each connected to a second connecting plate. The second guide rod on one of the second support bases is replaced by a second screw. The two ends of the second screw are rotatably connected to the second support base and the second connecting plate, respectively. The fourth fixing plate is threadedly connected to the second screw. The system also includes a second driving device for driving the second screw to rotate.

[0005] Using the above technical solution, during installation, the sliding first and second fixing plates clamp one end of the knife switch contact finger. The first driving device is activated, driving the first screw to rotate, which in turn moves the first and second fixing plates along the first guide rod, retracting one end of the knife switch contact finger. The sliding third and fourth fixing plates clamp the other end of the knife switch contact finger. The second driving device is activated, driving the second screw to rotate, which in turn moves the third and fourth fixing plates along the second guide rod, retracting the other end of the knife switch contact finger. The force on the contact finger is more balanced during the retraction process, reducing the occurrence of deformation or loosening.

[0006] As a further optimization of this utility model, both the first fixing plate and the second fixing plate are provided with a first through hole, which is slidably connected to the first extension column; the second fixing plate is provided with a second through hole, which is slidably connected to the first guide rod; both the third fixing plate and the fourth fixing plate are provided with a third through hole, which is slidably connected to the second extension column; and the fourth fixing plate is provided with a fourth through hole, which is slidably connected to the second guide rod.

[0007] As a further optimization of this utility model, the first fixing plate is provided with a first screw hole and is threadedly connected to the first screw, and the fourth fixing plate is provided with a second screw hole and is threadedly connected to the second screw.

[0008] As a further optimization of this utility model, the first driving device is a first motor mounted on a first support base, and the output end of the first motor is connected to a first screw; the second driving device is a second motor mounted on a second support base, and the output end of the second motor is connected to a second screw.

[0009] The beneficial effects of this utility model are as follows: During installation, the sliding first fixing plate and the second fixing plate clamp one end of the knife switch contact finger. The first driving device is activated, driving the first screw to rotate, thereby driving the first fixing plate and the second fixing plate to move along the first guide rod, thus retracting one end of the knife switch contact finger. The sliding third fixing plate and the fourth fixing plate clamp the other end of the knife switch contact finger. The second driving device is activated, driving the second screw to rotate, thereby driving the third fixing plate and the fourth fixing plate to move along the second guide rod, thus retracting the other end of the knife switch contact finger. The force on the contact finger during the retraction process is more balanced, reducing the occurrence of deformation or loosening. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] The labels in the diagram have the following meanings: 1. Support column; 11. First support base; 12. Second support base; 21. First fixing plate; 22. Second fixing plate; 23. Third fixing plate; 24. Fourth fixing plate; 31. First extension column; 32. Second extension column; 41. First connecting plate; 42. Second connecting plate; 51. First through hole; 52. Second through hole; 53. Third through hole; 54. Fourth through hole; 61. First screw; 62. Second screw; 71. First screw hole; 72. Second screw hole; 81. First driving device; 82. Second driving device. Detailed Implementation

[0012] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0013] See appendix Figure 1 The present embodiment of the present utility model further includes: a finger mounting device, comprising a plurality of support columns 1, a first fixing plate 21, a second fixing plate 22, a third fixing plate 23 and a fourth fixing plate 24, wherein the two ends of the support columns 1 are respectively provided with a first support seat 11 and a second support seat 12;

[0014] The first support base 11 is provided with a first extension column 31 and a first guide rod. The first fixing plate 21 is slidably connected to the first extension column 31, and the second fixing plate 22 is slidably connected to the first extension column 31 and the first guide rod. Specifically, both the first fixing plate 21 and the second fixing plate 22 are provided with a first through hole 51, and the first through hole 51 is slidably connected to the first extension column 31.

[0015] The ends of the first extension post 31 and the first guide rod are both connected to the first connecting plate 41. The first guide rod on one of the first support seats 11 is replaced by a first screw 61. The two ends of the first screw 61 are rotatably connected to the first support seat 11 and the first connecting plate 41, respectively. The first fixing plate 21 is provided with a first screw hole 71 and is threadedly connected to the first screw 61. It also includes a first driving device 81 for driving the first screw 61 to rotate.

[0016] The second support base 12 is provided with a second extension column 32 and a second guide rod. The third fixing plate 23 is slidably connected to the second extension column 32, and the fourth fixing plate 24 is slidably connected to the second extension column 32 and the second guide rod. Specifically, both the third fixing plate 23 and the fourth fixing plate 24 are provided with a third through hole 53, which is slidably connected to the second extension column 32. The fourth fixing plate 24 is provided with a fourth through hole 54, which is slidably connected to the second guide rod.

[0017] The ends of the second extension column and the second guide rod are both connected to the second connecting plate 42. The second guide rod on one of the second support seats 12 is replaced by the second screw 62. The two ends of the second screw 62 are rotatably connected to the second support seat 12 and the second connecting plate 42 respectively. The fourth fixing plate 24 is provided with a second screw hole 72 and is threadedly connected to the second screw 62. It also includes a second driving device 82 for driving the second screw 62 to rotate.

[0018] Specifically, the first drive device 81 is a first motor mounted on the first support base 11, and the output end of the first motor is connected to the first screw 61; the second drive device 82 is a second motor mounted on the second support base 12, and the output end of the second motor is connected to the second screw 62.

[0019] The principle of this utility model is as follows: During installation, the sliding first fixing plate 21 and the second fixing plate 22 clamp one end of the knife switch contact finger. The first driving device 81 is activated, which drives the first screw 61 to rotate, thereby driving the first fixing plate 21 and the second fixing plate 22 to move along the first guide rod, thus retracting one end of the knife switch contact finger. The sliding third fixing plate 23 and the fourth fixing plate 24 clamp the other end of the knife switch contact finger. The second driving device 82 is activated, which drives the second screw 62 to rotate, thereby driving the third fixing plate 23 and the fourth fixing plate 24 to move along the second guide rod, thus retracting the other end of the knife switch contact finger. The force on the contact finger is more balanced during the retraction process, reducing the occurrence of deformation or loosening.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A finger installation device comprising a plurality of support columns (1), a first fixed plate (21), a second fixed plate (22), a third fixed plate (23), and a fourth fixed plate (24), characterized in that, The support column (1) has a first support base (11) and a second support base (12) at its two ends. The first support base (11) has a first extension column (31) and a first guide rod. The first fixing plate (21) is slidably connected to the first extension column (31), and the second fixing plate (22) is slidably connected to the first extension column (31) and the first guide rod. The ends of the first extension column (31) and the first guide rod are connected to a first connecting plate (41). The first guide rod on one of the first support bases (11) is replaced by a first screw (61). The two ends of the first screw (61) are rotatably connected to the first support base (11) and the first connecting plate (41) respectively. The second fixing plate (22) is threadedly connected to the first screw (61). The support column (1) also includes a mechanism for driving the first extension column (11). The first driving device (81) for rotating the screw (61) includes a second extension column (32) and a second guide rod on the second support base (12). The third fixing plate (23) is slidably connected to the second extension column (32), and the fourth fixing plate (24) is slidably connected to the second extension column (32) and the second guide rod. The ends of the second extension column and the second guide rod are connected to a second connecting plate (42). The second guide rod on one of the second support bases (12) is replaced by a second screw (62). The two ends of the second screw (62) are rotatably connected to the second support base (12) and the second connecting plate (42) respectively. The fourth fixing plate (24) is threadedly connected to the second screw (62). The device also includes a second driving device (82) for driving the second screw (62) to rotate.

2. The finger mounting device of claim 1, wherein The first fixing plate (21) and the second fixing plate (22) are each provided with a first through hole (51), the first through hole (51) is slidably connected to the first extension post (31), the second fixing plate (22) is provided with a second through hole (52), the second through hole (52) is slidably connected to the first guide rod, the third fixing plate (23) and the fourth fixing plate (24) are each provided with a third through hole (53), the third through hole (53) is slidably connected to the second extension post (32), and the fourth fixing plate (24) is provided with a fourth through hole (54), the fourth through hole (54) is slidably connected to the second guide rod.

3. The finger mounting device of claim 1, wherein The first fixing plate (21) is provided with a first screw hole (71) and is threadedly connected to the first screw (61), and the fourth fixing plate (24) is provided with a second screw hole (72) and is threadedly connected to the second screw (62).

4. The finger mounting device of claim 1, wherein The first drive device (81) is a first motor mounted on the first support base (11), and the output end of the first motor is connected to the first screw (61). The second drive device (82) is a second motor mounted on the second support base (12), and the output end of the second motor is connected to the second screw (62).

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