Special nuclear phase vehicle for centrally installed switchgear

Abstract

The special nuclear phase vehicle comprises a first base and a second base arranged on the right side of the first base, an opening groove is formed in the right side of the top of the first base, the bottom of an inner cavity of the opening groove is slidably connected with a lap joint plate matched with the opening groove, and the right side of the lap joint plate is fixedly connected with the second base. When the phase checking device is used, the hydraulic push rod pushes the transverse plate to move vertically, and the connecting column drives the phase checking arm to move synchronously, so that the position of the induction type phase checking device can be adjusted according to the position of a static contact in the centrally installed switchgear; the second threaded rod rotates to drive the connecting column to ascend and descend, so that the position of one induction type nuclear phase device can be independently adjusted, and the use flexibility of the nuclear phase vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of phase comparison equipment for central cabinets, and in particular to a special phase comparison vehicle for central cabinets. Background Technology

[0002] Before power is supplied to equipment, a phase comparison tool is needed to check whether the phase and phase sequence of two power sources or loops are the same. When performing phase comparison in the medium-voltage switchgear on the low-voltage side, the internal valve baffle needs to be opened while the equipment is energized, and the phase comparison tool needs to be used to approach or contact the upper and lower stationary contacts. Currently, due to the lack of a dedicated valve baffle opening tool, at least two workers are required to use insulated rods and other tools to pry open the valve baffle and forcefully keep it open during the phase comparison process, which poses certain safety hazards. The large number of personnel involved in phase comparison at the medium-voltage switchgear also adds to the inconvenience. For the new inductive phase comparison device, the data acquisition unit needs to be brought close to the upper and lower stationary contacts and their relative positions fixed. If a switch trolley is used as a fixed carrier to push it into the cabinet, there is a possibility of accidental energization. Currently, there is a lack of dedicated auxiliary devices. Utility Model Content

[0003] One of the objectives of this utility model is achieved through the following technical solution:

[0004] A dedicated phase comparison vehicle for a centrally located cabinet includes a first base and a second base located to the right of the first base. An opening slot is formed on the top right side of the first base, and a matching overlapping plate is slidably connected to the bottom of the inner cavity of the opening slot. The right side of the overlapping plate is fixedly connected to the second base, and an adjustment mechanism is provided at the bottom of the overlapping plate. Positioning plates are fixedly connected to the top of both the first and second bases near their rear sides, and several threaded blind holes are formed on the front side of the positioning plates. The same mounting plate is fitted to the front sides of both the first and second bases, and bolts are threadedly connected to the four corners of the mounting plate. The threaded portion of the bolts is inserted into the inner cavity of adjacent threaded blind holes, allowing the mounting plate to be quickly fixed to the positioning plates after the horizontal distance between the two positioning plates is adjusted. Three laterally distributed phase comparison arms are slidably connected to the mounting plate near the top and bottom, and an inductive phase comparison device is provided on the phase comparison arm near its front end.

[0005] An adjustment mechanism is provided on the outer side of the nuclear phase arm. Two rollers distributed in front and behind are rotatably connected to the side of the first base and the second base that are far apart from each other. An opening guide plate is fixedly connected to the front part of the side of the first base and the second base that are far apart from each other. Two push plates distributed vertically are provided on the side of the two opening guide plates that are far apart from each other.

[0006] Furthermore, the adjustment mechanism includes a connecting block, which is fixedly connected to the bottom of the overlapping plate. The first base has a first cavity, and the top of the first cavity has a through groove that matches the connecting block. The bottom of the connecting block passes through the through groove and is fixedly connected to a moving block, which has a first threaded hole.

[0007] The inner cavity of the first threaded hole is threaded with a first threaded rod, and one end of the first threaded rod is rotatably connected to the inner wall of the first cavity. A circular groove is provided on the left side of the first base, and a through hole communicating with the inner cavity of the first cavity is provided on the right side of the inner cavity of the circular groove. The left end of the first threaded rod passes through the through hole, extends into the inner cavity of the circular groove, and is fixedly connected to a first hand crank. By rotating the first hand crank, the first threaded rod can be rotated, and the moving block can be moved horizontally. Thus, the connecting block can be used to move the overlapping plate horizontally, and the width between the first base and the second base can be adjusted to suit the central cabinet of different sizes.

[0008] Furthermore, the front and rear sides of the second base are fixedly connected with the first sealing plate, and the first sealing plate is fitted to the outer wall of the first base, so as to seal the front and rear sides of the first base and the second base.

[0009] Furthermore, a second sealing plate is attached to the rear side of the positioning plate on the left side, and the second sealing plate is fixedly connected to the positioning plate on the right side, which can seal the gap between the two positioning plates.

[0010] Furthermore, the three nuclear phase arms located on the same side of the transverse direction are provided with the same horizontal plate, and the left and right sides of the horizontal plate are slidably connected with fixed plates. Both fixed plates are fixedly connected to the mounting plate. A connecting post corresponding to the nuclear phase arm slides through the horizontal plate, and the connecting post is fixedly connected to the adjacent nuclear phase arm. The outer side of each of the three connecting posts is covered with a U-shaped plate, and the U-shaped plate is fixedly connected to the horizontal plate. Each of the three U-shaped plates has a second threaded hole, and the inner cavity of the second threaded hole is threaded with a second threaded rod. One end of each of the three second threaded rods is rotatably connected to the adjacent connecting post, and the other end of each of the three second threaded rods is fixedly connected to a knob. By rotating the knob, the second threaded rod can be rotated, and the height of the connecting post can be adjusted, thereby allowing the position of one of the nuclear phase arms to be adjusted individually.

[0011] The horizontal plate has two flat plates distributed on the side away from the phase arms, and the flat plates are fixedly connected to the mounting plate. Each of the two flat plates is equipped with a hydraulic push rod, and the power end of the hydraulic push rod is fixedly connected to the horizontal plate. The position of the three phase arms on the same side can be adjusted simultaneously by the operation of the hydraulic push rod, which improves the convenience of adjustment.

[0012] Furthermore, both the first and second bases have a second cavity near the rear side, and a limit block is slidably connected to the inner cavity of the second cavity. A third threaded hole is formed at the top of each of the two second cavities, and a third threaded rod is threadedly connected to the inner cavity of the third threaded hole. One end of each of the two third threaded rods is rotatably connected to the top of an adjacent limit block, and the other end of each of the two third threaded rods is fixedly connected to a second hand crank. A slot is formed at the bottom of each of the two second cavities, and a limit locking tongue is slidably connected to the inner cavity of the slot. The top of each of the two limit locking tongues is fixedly connected to an adjacent limit block. By rotating the two second hand cranks, the adjacent third threaded rods can be rotated, pushing the limit block downwards, thereby inserting the limit locking tongue into the limit slot in the central cabinet to improve the stability of the phase detection vehicle installation.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The horizontal plate is moved vertically by a hydraulic push rod, and the phase comparison arm is moved synchronously by the connecting column. The position of the inductive phase comparison device can be adjusted according to the position of the stationary contact in the central cabinet. In addition, the second threaded rod can be rotated by turning the knob. The rotation of the second threaded rod drives the connecting column to rise and fall, so that the position of one of the inductive phase comparison devices can be adjusted individually, thereby improving the flexibility of the phase comparison vehicle.

[0015] 2. By rotating the first hand crank, the first threaded rod can be rotated, which in turn drives the moving block to move horizontally. This allows the overlapping plate to slide horizontally via the connecting block, thereby adjusting the width between the first base and the second base. Simultaneously, the relative displacement of the two positioning plates can move the second sealing plate. This allows the system to meet the sealing requirements of the nuclear phase vehicle while being suitable for use in central cabinets of different sizes, thus improving its practicality. Attached Figure Description

[0016] Figure 1 This is a perspective view of this embodiment;

[0017] Figure 2 This is a cross-sectional view of the first and second bases in this embodiment;

[0018] Figure 3 This is a schematic diagram of the positioning plate structure in this embodiment;

[0019] Figure 4 This is a schematic cross-sectional view of the first base structure in this embodiment;

[0020] Figure 5 for Figure 1 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. First base; 2. Second base; 3. Opening slot; 4. Overlap plate; 5. Mounting plate; 6. Moving block; 7. First threaded rod; 8. Circular groove; 9. First hand crank; 10. Connecting block; 11. Through groove; 12. First sealing plate; 13. Opening guide plate; 14. Push plate; 15. Positioning plate; 16. Threaded blind hole; 17. Bolt; 18. Phase comparison arm; 19. Inductive phase comparison device; 20. Fixing plate; 21. Horizontal plate; 22. Flat plate; 23. Hydraulic push rod; 24. Connecting column; 25. U-shaped plate; 26. Second threaded rod; 27. Knob; 28. Second sealing plate; 29. ​​Roller; 30. Limiting block; 31. Limiting locking tongue; 32. Third threaded rod; 33. Second hand crank. Detailed Implementation

[0022] Please see Figures 1 to 5 The present invention provides the following technical solution:

[0023] A special phase comparison vehicle for a central cabinet includes a first base 1 and a second base 2 located on the right side of the first base 1. An opening groove 3 is provided on the top right side of the first base 1, and a matching overlapping plate 4 is slidably connected to the bottom of the inner cavity of the opening groove 3. The right side of the overlapping plate 4 is fixedly connected to the second base 2, and an adjustment mechanism is provided at the bottom of the overlapping plate 4. Positioning plates 15 are fixedly connected to the top of the first base 1 and the second base 2 near the rear side, and several threaded blind holes 16 are provided on the front side of the positioning plate 15. The same mounting plate 5 is attached to the front side of the first base 1 and the second base 2. Bolts 17 are threadedly connected to the four corners of the mounting plate 5, and the threaded part of the bolt 17 is inserted into the inner cavity of the adjacent threaded blind hole 16. After the horizontal distance between the two positioning plates 15 is adjusted, the mounting plate 5 can be quickly fixed to the positioning plate 15 using the bolts 17. Three horizontally distributed phase comparison arms 18 are slidably connected to the mounting plate 5 near the top and bottom, and an inductive phase comparison device 19 is provided on the phase comparison arm 18 near the front end.

[0024] An adjustment mechanism is provided on the outer side of the nuclear phase arm 18. Two rollers 29 distributed in front and back are rotatably connected to the side of the first base 1 and the second base 2 that are far apart from each other. An opening guide plate 13 is fixedly connected to the front part of the side of the first base 1 and the second base 2 that are far apart from each other. Two push plates 14 distributed vertically are provided on the side of the two opening guide plates 13 that are far apart from each other.

[0025] The adjustment mechanism includes a connecting block 10, which is fixedly connected to the bottom of the overlapping plate 4. A first cavity is provided on the first base 1, and a through groove 11 adapted to the connecting block 10 is provided on the top of the first cavity. The bottom of the connecting block 10 passes through the through groove 11 and is fixedly connected to a moving block 6, which has a first threaded hole.

[0026] The inner cavity of the first threaded hole is threaded with a first threaded rod 7, and one end of the first threaded rod 7 is rotatably connected to the inner wall of the first cavity. A circular groove 8 is provided on the left side of the first base 1, and a through hole communicating with the inner cavity of the first cavity is provided on the right side of the inner cavity of the circular groove 8. The left end of the first threaded rod 7 passes through the through hole, extends into the inner cavity of the circular groove 8, and is fixedly connected to a first hand crank 9. First sealing plates 12 are fixedly connected to both the front and rear sides of the second base 2, and the first sealing plates 12 are fitted against the outer wall of the first base 1, allowing for the adjustment of the first... The front and rear sides of the base 1 and the second base 2 are sealed. The second sealing plate 28 is attached to the rear side of the positioning plate 15 on the left side, and the second sealing plate 28 is fixedly connected to the positioning plate 15 on the right side. It can seal the gap between the two positioning plates 15. By rotating the first hand crank 9, the first threaded rod 7 can be rotated, and the moving block 6 can be moved horizontally. Thus, the overlapping plate 4 can be moved horizontally through the connecting block 10, and the width between the first base 1 and the second base 2 can be adjusted to suit the central cabinet of different sizes.

[0027] Three nuclear phase arms 18 located on the same side of the transverse direction are provided with a common horizontal plate 21 on their outer sides. Fixed plates 20 are slidably connected to both sides of the horizontal plate 21, and both fixed plates 20 are fixedly connected to the mounting plate 5. Connecting posts 24 corresponding to the nuclear phase arms 18 slide through the horizontal plate 21, and the connecting posts 24 are fixedly connected to adjacent nuclear phase arms 18. U-shaped plates 25 are provided on the outer sides of each of the three connecting posts 24, and the U-shaped plates 25 are fixedly connected to the horizontal plate 21. Each of the three U-shaped plates 25 has a second threaded hole, and a second threaded rod 26 is threadedly connected to the inner cavity of the second threaded hole. One end of each of the three second threaded rods 26 is connected to an adjacent connecting post 24. The three second threaded rods 26 are rotatably connected, and the other ends of the three second threaded rods 26 are fixedly connected to knobs 27. By rotating the knobs 27, the second threaded rods 26 can be rotated, and the height of the connecting column 24 can be adjusted. Thus, the position of one of the core phase arms 18 can be adjusted individually. On the side of the horizontal plate 21 away from the core phase arm 18, there are two flat plates 22 distributed to the left and right. The flat plates 22 are fixedly connected to the mounting plate 5. Each of the two flat plates 22 is equipped with a hydraulic push rod 23, and the power end of the hydraulic push rod 23 is fixedly connected to the horizontal plate 21. By working the hydraulic push rod 23, the position of the three core phase arms 18 on the same side can be adjusted at the same time, improving the convenience of adjustment.

[0028] Both the first base 1 and the second base 2 have a second cavity near the rear side, and a limit block 30 is slidably connected to the inner cavity of the second cavity. The top of both second cavities has a third threaded hole, and a third threaded rod 32 is threadedly connected to the inner cavity of the third threaded hole. One end of each of the two third threaded rods 32 is rotatably connected to the top of the adjacent limit block 30, and the other end of each of the two third threaded rods 32 is fixedly connected to a second hand crank 33. The bottom of both second cavities has a slot, and a limit locking tongue 31 is slidably connected to the inner cavity of the slot. The top of each of the two limit locking tongues 31 is fixedly connected to the adjacent limit block 30. After the phase detection vehicle is pushed into the central cabinet, the adjacent third threaded rod 32 can be rotated by rotating the two second hand cranks 33, and the limit block 30 can be pushed downward to slide. This allows the limit locking tongue 31 to be inserted into the limit slot in the central cabinet, thereby improving the stability of the phase detection vehicle installation.

[0029] Working principle: In use, the hydraulic push rod 23 is activated to move the horizontal plate 21 vertically, thereby moving the phase comparison arm 18 vertically. The position of the inductive phase comparison unit 19 is adjusted as a whole according to the position of the stationary contact in the central cabinet. When individual adjustment is required, the knob 27 can be turned to rotate the second threaded rod 26. The rotation of the second threaded rod 26 causes the connecting column 24 to move up and down, thereby adjusting the position of the corresponding phase comparison arm 18 individually. Then, the first base 1 and the second base 2 are slid into the central cabinet, and the roller 29 is slid into the trolley track in the central cabinet. The second hand crank 33 is then turned. The third threaded rod 32 is rotated, which causes the limiting block 30 to slide downwards and insert the limiting locking tongue 31 into the limiting slot in the central cabinet. In addition, when it is necessary to adjust the width of the first base 1 and the second base 2 according to the size of the central cabinet, the first hand crank 9 can be rotated to drive the first threaded rod 7 to rotate. The rotation of the first threaded rod 7 causes the moving block 6 to move horizontally. The horizontal movement of the moving block 6 can drive the overlapping plate 4 to slide horizontally relative to the first base 1 through the connecting block 10. At the same time, it can drive the first sealing plate 12 and the second sealing plate 28 on the front and rear sides to slide synchronously to ensure the sealing effect of the phase-checking car adjustment.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special phase-checking vehicle for a central control cabinet, comprising a first base (1) and a second base (2) disposed on the right side of the first base (1), characterized in that: An opening groove (3) is provided on the top right side of the first base (1), and a matching overlapping plate (4) is slidably connected to the bottom of the inner cavity of the opening groove (3). The right side of the overlapping plate (4) is fixedly connected to the second base (2). An adjustment mechanism is provided at the bottom of the overlapping plate (4). A positioning plate (15) is fixedly connected to the top of the first base (1) and the second base (2) near the rear side. Several threaded blind holes (16) are provided on the front side of the positioning plate (15). The same mounting plate (5) is attached to the front side of the first base (1) and the second base (2). Bolts (17) are threadedly connected to the four corners of the mounting plate (5). The threaded part of the bolt (17) is inserted into the inner cavity of the adjacent threaded blind hole (16). Three horizontally distributed phase comparison arms (18) are slidably connected to the mounting plate (5) near the top and bottom. An inductive phase comparison device (19) is provided on the phase comparison arm (18) near the front end.

2. The dedicated phase-checking vehicle for a central-mounted switchboard as described in claim 1, characterized in that: An adjustment mechanism is provided on the outer side of the nuclear phase arm (18). Two rollers (29) are rotatably connected to the side of the first base (1) and the second base (2) that are far apart. An opening guide plate (13) is fixedly connected to the front part of the side of the first base (1) and the second base (2) that are far apart. Two push plates (14) are provided on the side of the two opening guide plates (13) that are far apart.

3. The dedicated phase-checking vehicle for a central control cabinet as described in claim 2, characterized in that: The adjustment mechanism includes a connecting block (10), and the connecting block (10) is fixedly connected to the bottom of the overlapping plate (4). The first base (1) has a first cavity, and the top of the first cavity has a through groove (11) that matches the connecting block (10). The bottom of the connecting block (10) passes through the through groove (11) and is fixedly connected to a moving block (6), and the moving block (6) has a first threaded hole.

4. The dedicated phase-checking vehicle for a central control cabinet as described in claim 3, characterized in that: The inner cavity of the first threaded hole is threaded with a first threaded rod (7), and one end of the first threaded rod (7) is rotatably connected to the inner wall of the first cavity. A circular groove (8) is provided on the left side of the first base (1), and a through hole communicating with the inner cavity of the first cavity is provided on the right side of the inner cavity of the circular groove (8). The left end of the first threaded rod (7) passes through the through hole, extends to the inner cavity of the circular groove (8), and is fixedly connected with a first hand crank (9).

5. The dedicated phase-checking vehicle for a central control cabinet as described in claim 1, characterized in that: The second base (2) is fixedly connected to the front and rear sides with the first sealing plate (12), and the first sealing plate (12) is fitted to the outer wall of the first base (1).

6. The dedicated phase-checking vehicle for a central-mounted switchboard as described in claim 1, characterized in that: A second sealing plate (28) is attached to the rear side of the positioning plate (15) on the left side, and the second sealing plate (28) and the positioning plate (15) on the right side are fixedly connected.

7. The dedicated phase-checking vehicle for a central-mounted cabinet as described in claim 1, characterized in that: The three nuclear phase arms (18) located on the same side of the transverse direction are provided with the same horizontal plate (21), and the left and right sides of the horizontal plate (21) are slidably connected with fixed plates (20). The two fixed plates (20) are fixedly connected to the mounting plate (5). The horizontal plate (21) is slidably connected with the corresponding connecting post (24) of the nuclear phase arm (18), and the connecting post (24) is fixedly connected to the adjacent nuclear phase arm (18). The three connecting posts (24) are covered with U-shaped plates (25) on their outer sides, and the U-shaped plates (25) are fixedly connected to the horizontal plate (21). The three U-shaped plates (25) are covered with the horizontal plate (21). Each of the three threaded rods (26) is provided with a second threaded hole, and the inner cavity of the second threaded hole is threaded with a second threaded rod (26). One end of each of the three second threaded rods (26) is rotatably connected to the adjacent connecting column (24), and the other end of each of the three second threaded rods (26) is fixedly connected with a knob (27). The side of the horizontal plate (21) away from the nuclear phase arm (18) is provided with two left and right distributed flat plates (22), and the flat plates (22) are fixedly connected to the mounting plate (5). Each of the two flat plates (22) is provided with a hydraulic push rod (23), and the power end of the hydraulic push rod (23) is fixedly connected to the horizontal plate (21).

8. The dedicated phase-checking vehicle for a central control cabinet as described in claim 1, characterized in that: The first base (1) and the second base (2) are provided with a second cavity near the rear side, and the inner cavity of the second cavity is slidably connected to a limit block (30). The top of the two second cavities is provided with a third threaded hole, and the inner cavity of the third threaded hole is threadedly connected to a third threaded rod (32). One end of the two third threaded rods (32) is rotatably connected to the top of the adjacent limit block (30), and the other end of the two third threaded rods (32) is fixedly connected to a second hand crank (33). The bottom of the two second cavities is provided with a slot, and the inner cavity of the slot is slidably connected to a limit locking tongue piece (31). The top of the two limit locking tongue pieces (31) is fixedly connected to the adjacent limit block (30).

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