Drawer switch operating mechanism and drawer switch cabinet

Abstract

The present invention provides a drawer switch operating mechanism and a drawer switch cabinet, wherein the drawer switch operating mechanism comprises: a movable bottom plate, which moves with the drawer switch; an auxiliary switch II, which has a normally open contact II and a normally closed contact II, wherein the normally closed contact II is connected in series with a secondary circuit of a circuit breaker, and a first indicator light is connected in series in the circuit connected with the normally open contact II; a connecting piece, which is suitable for contacting the auxiliary switch II, and when the drawer switch moves to an opening position, the connecting piece contacts the auxiliary switch II, so that the normally closed contact II of the auxiliary switch II is disconnected and the normally open contact II is connected; the drawer switch operating mechanism of the present invention, after the drawer switch is operated to move to the opening position, when the secondary circuit of the circuit breaker is disconnected, the first indicator light is on, so that the operator can clearly see from the scene whether the secondary circuit of the circuit breaker is disconnected, so as to ensure the safety of the maintenance personnel, and the closing coil will not be turned on, so as to ensure that the closing coil will not be burned.

Description

Technical Field

[0001] The invention relates to the technical field of a drawer-type switch device that can be pulled out for isolation, and in particular to a drawer switch operating mechanism and a drawer-type switch cabinet. Background Art

[0002] The drawer-type switchgear is a closed housing made of steel plates. The electrical components of the incoming and outgoing line circuits are installed in the drawer, forming a functional unit that can complete a certain type of power supply task. The functional unit is separated from the busbar or cable by a grounded metal plate or a functional board made of plastic, forming three areas of the busbar, functional unit and cable. There are also isolation measures between each functional unit. The drawer-type switchgear has high reliability, safety and interchangeability. It is a relatively advanced switchgear. Most of the switchgear currently produced are drawer-type switchgear. They are suitable for industrial and mining enterprises and high-rise buildings that require high power supply reliability as a centralized control distribution center.

[0003] The development of the drawer unit is the key to realizing the overall function of the switch cabinet, and a systematic study is required to achieve its optimal protection. The existing low-voltage withdrawable switch cabinets such as MNS, GCS, and GCK in China are equipped with three mechanical positions (open, test, and connect), but they are not obvious enough, which is not conducive to the operation and maintenance of operators. In order to solve this problem, Chinese patent document CN206293809U discloses a low-voltage drawer switch cabinet propulsion mechanism and a low-voltage drawer switch cabinet, including: a bottom plate, a positioning seat, and an indicator sign connecting rod rotatably connected to the bottom plate. When the drawer is opened or closed, the bottom plate is driven to slide along the positioning seat, and the inclined surface on the positioning seat drives the indicator sign connecting rod to swing, so that the indicator sign located on the indicator sign connecting rod displays different positions to indicate the current state of the drawer. In the above scheme, the drawer position is clearly indicated mechanically.

[0004] However, when the circuit breaker is in the open state, the secondary circuit of the circuit breaker should also be in the disconnected state in theory. However, during on-site operation, it is only judged based on the position of the drawer switch, and it is not possible to directly determine that the secondary circuit has been disconnected. If the secondary circuit is still connected when the circuit breaker is in the open state, it will bring danger to the maintenance work, and if the electrical closing is performed due to misoperation at this time, the closing coil will burn out. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that when the circuit breaker is in the open state, it is impossible to determine on site whether the secondary circuit is also disconnected, thereby providing a drawer switch operating mechanism that can clearly display that the secondary circuit is in the disconnected state when the circuit breaker is in the closed state.

[0006] The invention also provides a drawer-type switch having the drawer switch operating mechanism.

[0007] In order to solve the above technical problems, the present invention provides a drawer switch operating mechanism, comprising:

[0008] Movable bottom plate moves with the drawer opening and closing;

[0009] Auxiliary switch II, having a normally open contact II and a normally closed contact II, wherein the normally closed contact II is connected in series with the secondary circuit of the circuit breaker, and the primary circuit connected to the normally open contact II is connected in series with a first indicator light;

[0010] The connecting piece is suitable for contacting the auxiliary switch II. When the drawer switch moves to the opening position, the connecting piece contacts the auxiliary switch II to disconnect the normally closed contact II of the auxiliary switch II and connect the normally open contact II.

[0011] As a preferred solution, the auxiliary switch II is fixedly connected to the movable bottom plate.

[0012] As a preferred solution, the connecting piece is movably connected to the movable bottom plate.

[0013] As a preferred solution, the connecting piece is rotatably connected to the movable bottom plate via a rotating shaft.

[0014] As a preferred solution, it also includes:

[0015] A guide positioning seat, fixedly arranged relative to the movable bottom plate and located below the movable bottom plate;

[0016] The connecting piece has a sliding column extending downward and slidingly contacting with the guide positioning seat. When the movable bottom plate moves with the drawer switch, the sliding column slides relatively along the guide positioning seat to drive the connecting piece to rotate around the rotating shaft on the movable bottom plate.

[0017] As a preferred solution, it also includes:

[0018] A closing locking rod, connected to the opening and closing rod of the circuit breaker, having a locking state of extending downward as the opening and closing rod rotates;

[0019] The closing lock hole is arranged on the bottom plate of the drawer compartment. When the drawer switch is in the closing position, the closing lock hole is opposite to the closing locking rod, so that the closing locking rod locks the drawer switch by inserting into the closing lock hole when extending downward.

[0020] As a preferred solution, it also includes:

[0021] The insert seat is arranged on the movable bottom plate and has a guide through hole for accommodating the closing and locking rod, so that the closing and locking rod can move telescopically in the guide through hole.

[0022] As a preferred solution, it also includes:

[0023] A movable special-shaped plate, movably connected to the movable bottom plate, having an insertion hole for coinciding with or staggering with the closing lock hole;

[0024] The unlocking connecting plate is slidably connected to the panel of the drawer switch and is connected to the movable special-shaped plate. The movable special-shaped plate is driven by sliding so that the insertion hole of the movable special-shaped plate coincides with or is staggered with the guide through hole of the insertion seat and the through hole of the movable bottom plate.

[0025] As a preferred solution, the movable special-shaped plate is rotationally connected to the movable bottom plate and the unlocking connecting plate respectively via a rotating shaft.

[0026] The drawer-type switch cabinet provided by the present invention comprises at least one drawer switch operating mechanism according to any one of the above-mentioned solutions.

[0027] The technical solution of the present invention has the following advantages:

[0028] 1. The drawer switch operating mechanism provided by the present invention, when the drawer switch is operated to move to the opening position, the connecting piece contacts the auxiliary switch II, so that the normally closed contact II of the auxiliary switch II is connected in series with the secondary circuit of the circuit breaker to be disconnected, and the circuit of the normally open contact II of the auxiliary switch II is connected, so that the first indicator light connected in series in the primary circuit connected to the normally open contact II lights up to indicate that the secondary circuit of the circuit breaker has been disconnected, so that the operator can clearly see whether the secondary circuit of the circuit breaker is disconnected from the scene, so as to ensure the safety of the maintenance personnel; and, in the case that the normally closed contact II of the auxiliary switch II is disconnected, even if the electrical closing is performed, the closing coil will not be turned on, so as to ensure that the closing coil will not be burned.

[0029] 2. The drawer switch operating mechanism provided by the present invention has a guide positioning seat, which can drive the connecting piece to rotate and move between different positions when the drawer switch moves, thereby realizing the contact and separation of the connecting piece and the auxiliary switch II; at the same time, a display board is connected to the connecting piece, which can make the display board rotate accordingly to change the different positions displayed by the display board toward the outside of the panel of the drawer switch, thereby intuitively displaying the closing, testing or opening position of the drawer switch.

[0030] 3. The drawer switch operating mechanism provided by the present invention has a closing locking rod and a closing lock hole. When the drawer switch is in the closing position, the closing locking rod is opposite to the closing lock hole. When the opening and closing rod of the circuit breaker is rotated to close the primary circuit of the circuit breaker, the closing locking rod extends downward following the rotation of the opening and closing rod, so that the closing locking rod extends into the closing lock hole, locking the drawer switch and preventing it from moving, thereby ensuring that the drawer switch cannot be manually operated in the closed state.

[0031] 4. The drawer switch operating mechanism provided by the present invention has a movable special-shaped plate and an unlocking connecting plate. When the drawer is operated, the movable special-shaped plate is rotated by pressing the unlocking connecting plate, and the insertion hole on the movable special-shaped plate can be used to determine whether the closing locking rod is still inserted in the closing lock hole, thereby ensuring that the closing locking rod has been pulled out of the closing lock hole when the drawer is switched, avoiding unnecessary impact on the closing locking rod, the drawer compartment bottom plate or the opening and closing rods of the circuit breaker.

[0032] 5. The drawer-type switch cabinet provided by the present invention has the advantages described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a three-dimensional structural schematic diagram of the drawer switch operating mechanism.

[0035] Figure 2 for Figure 1 Top view of the .

[0036] Figure 3 for Figure 2 Magnified view of area A.

[0037] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure.

[0038] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure behind the hidden opening and closing rods.

[0039] Figure 6 for Figure 5 Top view of the .

[0040] Figure 7 It is a schematic diagram of the three-dimensional structure of the drawer compartment bottom plate.

[0041] Figure 8 for Figure 7 Magnified view of area B.

[0042] Fig. 9 A top view of the guide and positioning seat.

[0043] Fig.10 It is a schematic diagram of the three-dimensional structure of the opening and closing rod and the closing locking rod.

[0044] Fig.11 It is a schematic diagram of the three-dimensional structure of the insertion seat.

[0045] Fig.12 It is a schematic diagram of the three-dimensional structure of the movable base plate.

[0046] Fig.13 It is a schematic diagram of the three-dimensional structure of the movable special-shaped plate.

[0047] Fig.14 This is the primary circuit diagram of the circuit breaker.

[0048] Fig.15 This is the secondary circuit diagram of the circuit breaker.

[0049] Description of reference numerals:

[0050] 1. Drawer switch; 2. Drawer compartment; 3. Movable bottom plate; 4. Auxiliary switch I; 5. Auxiliary switch II; 6. Connecting piece; 7. Display plate; 8. Panel; 9. Insertion seat; 10. Guide through hole; 11. Opening and closing lever; 12. Closing and locking lever; 13. Through hole; 14. Movable special-shaped plate; 15. Unlocking connecting plate; 16. Insertion hole; 17. First torsion spring; 18. Second torsion spring; 19. Guide positioning seat; 2 0. Closing lock hole; 21. Test lock hole; 22. Closing positioning groove; 23. Test positioning groove; 24. Sliding column; 25. Positioning column; 26. Inclined surface; 27. Positioning surface; 28. Connecting rod; 29. ​​Limiting step; 30. Arc-shaped through hole; 31. First connecting hole; 32. Second connecting hole; 33. Normally open contact I; 34. Normally closed contact I; 35. Normally open contact II; 36. Normally closed contact II; 37. Closing coil. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] This embodiment provides a drawer-type switch cabinet, including at least one drawer switch 1 operating mechanism, wherein the drawer switch 1 operating mechanism is as follows: Figure 1 As shown, it includes: a drawer switch 1 and a drawer compartment 2. The drawer switch 1 is pulled and moved in the drawer compartment 2 to switch between a closing position, a test position and an opening position, thereby realizing the switching on and off of a closing coil 37 of a circuit breaker in the drawer switch 1.

[0056] like Figure 2 As shown, the drawer switch 1 is in the state of pulling out the drawer compartment 2, and at this time the drawer switch 1 is in the open position.

[0057] like Figure 3 As shown, in the drawer switch 1, there is a movable bottom plate 3, which moves with the drawer switch 1, and auxiliary switches I4 and II5 are fixedly provided on the movable bottom plate 3. A connecting piece 6 is also connected to the movable bottom plate 3, and the connecting piece 6 is rotatably connected to the movable bottom plate 3 through a rotating shaft. A display board 7 is connected to the end of the connecting piece 6. The display screen displays different positions toward the outside of the panel 8 of the drawer switch 1 according to the rotation of the connecting piece 6, so as to intuitively display the closing, testing or opening position of the drawer switch 1.

[0058] like Figure 4As shown, an insertion seat 9 is also connected to the movable bottom plate 3, and the insertion seat 9 has a guide through hole 10. A closing lock rod 12 is connected to the opening and closing rod 11 of the circuit breaker, and the closing lock rod 12 is inserted into the guide through hole 10. On the movable bottom plate 3, below the guide through hole 10, a through hole 13 is coaxially arranged. The opening and closing rod 11 is rotated so that the closing lock rod 12 can extend downward or retract upward along the guide through hole 10 through the through hole 13 on the movable bottom plate 3 below the guide through hole 10.

[0059] like Figure 5 As shown, a movable special-shaped plate 14 is also connected to the movable bottom plate 3, and the movable special-shaped plate 14 is rotatably connected to the movable bottom plate 3 through a rotating shaft. One end of the movable special-shaped plate 14 is rotatably connected to the unlocking connecting plate 15, and the other end can be extended between the insertion seat 9 and the movable bottom plate 3. An insertion hole 16 is provided on the end of the movable special-shaped plate 14 that can be extended between the insertion seat 9 and the movable bottom plate 3, and the insertion hole 16 can overlap or stagger with the guide through hole 10 of the insertion seat 9 and the through hole 13 of the movable bottom plate 3. At the end of the movable special-shaped plate 14 that is rotatably connected to the unlocking connecting plate 15, the unlocking connecting plate 15 is slidably connected to the panel 8 of the drawer switch 1. By linearly sliding the unlocking connecting plate 15, the movable special-shaped plate 14 can be rotated, thereby driving the insertion hole 16 of the movable special-shaped plate 14 to overlap or stagger with the guide through hole 10 of the insertion seat 9 and the through hole 13 of the movable bottom plate 3. A first torsion spring 17 is further provided between the movable profiled plate 14 and the movable bottom plate 3 , and has a biasing force for making the insertion hole 16 of the movable profiled plate 14 coincide with the guide through hole 10 of the insertion seat 9 and the through hole 13 of the movable bottom plate 3 .

[0060] like Figure 6 As shown, a second torsion spring 18 is further provided between the connecting piece 6 and the movable bottom plate 3 , and the second torsion spring 18 has a biasing force for rotating the connecting piece 6 toward the direction of contacting the auxiliary switch II5 .

[0061] like Figure 7 As shown, a guide positioning seat 19 is provided on the drawer compartment 2 below the movable bottom plate 3. The guide positioning seat 19 is fixed relative to the movable bottom plate 3. When the movable bottom plate 3 moves with the drawer switch 1, the downwardly extending sliding column 24 connected to the connecting piece 6 slides relatively along the guide positioning seat 19, so that the connecting piece 6 is driven to rotate around the rotating shaft on the movable bottom plate 3.

[0062] On the drawer compartment 2, below the movable bottom plate 3, two through holes are provided, which are, from inside to outside, a closing lock hole 20 and a test lock hole 21. When the drawer switch 1 is in the closing position, the guide through hole 10 of the insertion seat 9, the insertion hole 16 of the movable special-shaped plate 14 and the through hole 13 of the movable bottom plate 3 are all overlapped with the closing lock hole 20. At this time, rotating the opening and closing rod 11 of the circuit breaker can link the closing lock rod 12 to extend downward, and finally insert it into the closing lock hole 20, so that the drawer switch 1 and the drawer compartment 2 are locked.

[0063] Similarly, when the drawer switch 1 is in the test position, the guide through hole 10 of the insertion seat 9, the insertion hole 16 of the movable special-shaped plate 14 and the through hole 13 of the movable bottom plate 3 all coincide with the test lock hole 21. At this time, rotating the opening and closing rod 11 of the circuit breaker can link the closing locking rod 12 to extend downward and finally insert it into the test lock hole 21, so that the drawer switch 1 is locked with the drawer compartment 2.

[0064] like Figure 8 As shown, a positioning structure is provided on one side of the guide positioning seat 19, and the positioning structure is two grooves, which are respectively a closing positioning groove 22 and a test positioning groove 23 from the inside to the outside. When the drawer switch 1 is in the closing position, the positioning column 25 extending downward connected to the movable special-shaped plate 14 is opposite to the closing positioning groove 22. At this time, the positioning column 25 can be inserted into the closing positioning groove 22, so that the movable special-shaped plate 14 can be rotated to: make the insertion hole 16 at one end coincide with the guide through hole 10 of the insertion seat 9, so that the closing locking rod 12 can be inserted into the closing lock hole 20.

[0065] Similarly, when the drawer switch 1 is in the test position, the positioning column 25 extending downwardly connected to the movable special-shaped plate 14 is opposite to the test positioning groove 23. At this time, the positioning column 25 can be inserted into the test positioning groove 23, so that the movable special-shaped plate 14 can be rotated to: make the insertion hole 16 at one end coincide with the guide through hole 10 of the insertion seat 9, so that the closing lock rod 12 can be inserted into the closing lock hole 20.

[0066] like Fig. 9As shown, a guide structure is provided on the other side of the guide positioning seat 19, and the guide structure has three groups of inclined surfaces 26 and positioning surfaces 27 connected in sequence. When the drawer switch 1 moves, the downwardly extending slide 24 connected to the connecting piece 6 slides along the inclined surface 26 or the positioning surface 27. When the slide 24 is on the positioning surface 27, the connecting plate is located at a fixed preset position; when the slide 24 slides on the inclined surface 26, the connecting plate is in a state of rotating from one fixed position to another fixed position. The slide 24 slides on the inclined surface 26 and the positioning surface 27 to drive the connecting plate, and when the drawer switch 1 is located at the closing position, the test position and the opening position, it also has three positioning positions respectively.

[0067] like Fig.10 As shown, the opening and closing rod 11 of the circuit breaker is a square rod, and a connecting rod 28 is arranged between the opening and closing rod 11 and the closing and locking rod 12. The connecting rod 28 is fixedly connected to the opening and closing rod 11, and the connecting rod 28 is hingedly connected to the closing and locking rod 12. Therefore, when the opening and closing rod 11 rotates, the closing and locking rod 12 can be driven to telescopically move in the up and down directions through the connecting rod 28.

[0068] like Fig.11 As shown, a limiting step 29 is provided at the bottom of the insertion seat 9 for cooperating with the first torsion spring 17 to limit the rotation angle of the movable special-shaped plate 14 .

[0069] like Fig.12 As shown, the movable bottom plate 3 is provided with two arc-shaped through holes 30 , which are used to pass through the sliding column 24 connected to the connecting plate 6 and the positioning column 25 connected to the movable special-shaped plate 14 .

[0070] like Fig.13 As shown, the movable special-shaped plate 14 is provided with a first connection hole 31 for fixed connection with the positioning column 25 and a second connection hole 32 for rotationally connecting with the movable bottom plate 3 .

[0071] like Fig.14 As shown, in the primary circuit of the circuit breaker, the normally open contact I33 and normally closed contact I34 of the auxiliary switch I4, and the normally open contact II35 of the auxiliary switch II5 are all connected in parallel. When the drawer switch 1 is in the closing position, only the normally open contact I33 of the auxiliary switch I4 is connected, and the indicator light connected in series with the normally open contact I33 is on; when the drawer switch 1 is in the test position, only the normally closed contact I34 of the auxiliary switch I4 is connected, and the indicator light connected in series with the normally closed contact I34 is on; when the drawer switch 1 is in the opening position, the normally closed contact I34 of the auxiliary switch I4 is connected and the normally open contact II35 of the auxiliary switch II5 is connected, and the indicator light connected in series with the normally closed contact I34 and the indicator light connected in series with the normally open contact II35 are both on.

[0072] like Fig.15 As shown, in the secondary circuit of the circuit breaker, the normally closed contact II36 of the auxiliary switch II5 is connected in series with the closing coil 37 of the circuit breaker. When the drawer switch 1 is in the closing position and the test position, the normally closed contact II36 of the auxiliary switch II5 is in a connected state, so that the closing coil 37 can be electrically closed; when the drawer switch 1 is in the opening position, the normally open contact II35 is connected, so that the normally closed contact II36 is disconnected, and the circuit of the closing coil 37 is disconnected, and the electric closing cannot be performed.

[0073] Directions:

[0074] Open position: When the drawer switch 1 is in the open position, the indicator shows "Separated".

[0075] Test position: Hold the left and right handles of the drawer with both hands and push the drawer gently until the status display card 7 shows "test", the normally closed contact II36 is energized and the secondary circuit is connected.

[0076] Closing position: Press the unlocking button on the left handle of the drawer connected to the unlocking connecting plate 15 with your left hand, and push the drawer forward until the status display card 7 shows "connected", the primary and secondary circuits are connected, and the normally open contact Ⅰ33 is energized.

[0077] When closing the switch, rotate the opening and closing handle from opening to closing, and the handle drives the opening and closing rod 11 to rotate, so that the closing locking rod 12 is inserted into the bottom plate of the drawer compartment 2. At this time, the closing locking rod 12 and the cabinet are in a locked state, and the drawer cannot be pushed in or pulled out. The drawer can only be pulled out after opening the switch, that is, after the main switch is opened, press the unlocking button on the left handle of the drawer with your left hand to pull out the drawer.

[0078] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A drawer switch operating mechanism, characterized in that: include: The movable bottom plate (3) moves along with the drawer switch (1); Auxiliary switch II (5) having a normally open contact II (35) and a normally closed contact II (36), wherein the normally closed contact II (36) is connected in series with the secondary circuit of the circuit breaker, and the primary circuit connected to the normally open contact II (35) is connected in series with a first indicator light; a connecting piece (6) adapted to contact the auxiliary switch II (5); when the drawer switch (1) moves to the opening position, the connecting piece (6) contacts the auxiliary switch II (5) so that the normally closed contact II (36) of the auxiliary switch II (5) is disconnected and the normally open contact II (35) is connected; A closing locking rod (12) is connected to the opening and closing rod (11) of the circuit breaker and has a locking state in which the closing and opening rod (11) extends downward as the closing and opening rod (11) rotates; A closing lock hole (20) is arranged on the bottom plate of the drawer compartment (2); when the drawer switch (1) is in the closing position, the closing lock hole (20) is opposite to the closing lock rod (12), so that the closing lock rod (12) can lock the drawer switch (1) by inserting into the closing lock hole (20) when extending downward; An insertion seat (9) is arranged on the movable bottom plate (3) and has a guide through hole (10) for accommodating the closing locking rod (12), so that the closing locking rod (12) can move telescopically in the guide through hole (10); a limiting step (29) is provided at the bottom of the insertion seat (9); A movable special-shaped plate (14) is movably connected to the movable bottom plate (3) and has an insertion hole (16) for coinciding with or staggering with the closing lock hole (20); one end of the movable special-shaped plate (14) extends between the insertion seat (9) and the movable bottom plate (3); An unlocking connection plate (15) is slidably connected to the panel (8) of the drawer switch (1) and is connected to the movable special-shaped plate (14). The movable special-shaped plate (14) is driven by sliding so that the insertion hole (16) of the movable special-shaped plate (14) coincides with or is offset from the guide through hole (10) of the insertion seat (9) and the through hole (13) of the movable bottom plate (3); In the primary circuit of the circuit breaker, the normally open contact I (33) and the normally closed contact I (34) of the auxiliary switch I (4), and the normally open contact II (35) of the auxiliary switch II (5) are all connected in parallel; when the drawer switch (1) is in the closed position, only the normally open contact I (33) of the auxiliary switch I (4) is connected, and the indicator light connected in series with the normally open contact I (33) is lit; when the drawer switch (1) is in the test position, only the normally closed contact I (34) of the auxiliary switch I (4) is connected, and the indicator light connected in series with the normally closed contact I (34) is lit; when the drawer switch (1) is in the open position, the normally closed contact I (34) of the auxiliary switch I (4) is connected and the normally open contact II (35) of the auxiliary switch II (5) is connected, and the indicator light connected in series with the normally closed contact I (34) and the indicator light connected in series with the normally open contact II (35) are both lit; In the secondary circuit of the circuit breaker, the normally closed contact II (36) of the auxiliary switch II (5) is connected in series with the closing coil (37) of the circuit breaker; when the drawer switch (1) is in the closing position and the test position, the normally closed contact II (36) of the auxiliary switch II (5) is in a connected state, so that the closing coil (37) can be electrically closed; when the drawer switch (1) is in the opening position, the normally open contact II (35) is connected, so that the normally closed contact II (36) is disconnected, and at this time, the circuit of the closing coil (37) is disconnected, and the electric closing cannot be performed.

2. The drawer switch operating mechanism according to claim 1, characterized in that: The auxiliary switch II (5) is fixedly connected to the movable bottom plate (3).

3. The drawer switch operating mechanism according to claim 2, characterized in that: The connecting piece (6) is movably connected to the movable bottom plate (3).

4. The drawer switch operating mechanism according to claim 3, characterized in that: The connecting piece (6) is rotatably connected to the movable bottom plate (3) via a rotating shaft.

5. The drawer switch operating mechanism according to claim 4, characterized in that: Also includes: A guide positioning seat (19) is fixedly arranged relative to the movable bottom plate (3) and is located below the movable bottom plate (3); The connecting piece (6) has a sliding column (24) extending downwardly and slidingly contacting the guide positioning seat (19). When the movable bottom plate (3) moves with the drawer switch (1), the sliding column (24) slides relatively along the guide positioning seat (19), driving the connecting piece (6) to rotate around the rotating axis on the movable bottom plate (3).

6. The drawer switch operating mechanism according to any one of claims 1 to 5, characterized in that: The movable special-shaped plate (14) is rotationally connected to the movable bottom plate (3) and the unlocking connection plate (15) respectively via a rotating shaft.

7. Drawer-type switch cabinet, characterized in that: The invention comprises at least one drawer switch (1) operating mechanism according to any one of claims 1 to 6.

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