Drawer interlocking mechanism

Abstract

The present application discloses a drawer interlocking mechanism, including a base, a switch-on / off interlocking mechanism and an unlocking mechanism, wherein the unlocking mechanism includes an unlocking push rod; the switch-on / off interlocking mechanism includes: a switch-on bracket plate, which has a vertical portion, and the middle portion of the vertical portion has an escape opening, and the vertical portion is mounted on the unlocking push rod through the escape opening; an unlocking baffle plate, which is slidably and vertically slidably arranged on the switch-on bracket plate, and the unlocking baffle plate has a connecting portion, a first locking portion extending downward, and a second locking portion; a switch-on / off hook plate, which is rotatably mounted on the vertical portion, and the switch-on / off hook plate has an arc-shaped slideway and an operating hole for a square rod to pass through, and the connecting portion and the arc-shaped slideway are slidably matched. The middle portion of the switch-on bracket plate of the present application is mounted on the unlocking push rod, so that the switch-on / off interlocking mechanism and the unlocking mechanism are combined in one area, and the structure is compact, which can effectively reduce the volume.

Description

Technical Field

[0001] The invention relates to the field of electrical cabinets, and in particular to a drawer interlocking mechanism. Background Art

[0002] Withdrawable low-voltage power distribution cabinet (drawer-type electrical cabinet) has the advantages of space saving, reliable operation, easy installation and maintenance, strong breaking capacity, and multiple outgoing line circuits. It is widely used in power distribution systems in power plants, substations, factories, mines, enterprises and high-rise buildings. The main function of the power distribution cabinet is to convert, distribute and control the power of power distribution, motor control and lighting distribution equipment.

[0003] The drawer interlocking mechanism of the drawer-type electrical cabinet includes an opening and closing interlocking mechanism and an unlocking mechanism. The opening and closing interlocking mechanism and the unlocking mechanism are arranged in parallel, resulting in the drawer interlocking mechanism being not compact enough as a whole and having a large volume. Summary of the invention

[0004] In view of the above problems, the present invention proposes a drawer interlocking mechanism.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A drawer interlocking mechanism comprises a base and an opening and closing interlocking mechanism and an unlocking mechanism installed on the base, wherein the unlocking mechanism comprises:

[0007] A locking piece, slidably mounted on the base, the locking piece being used to cooperate with an external structure to lock or unlock the base;

[0008] A first spring, used to cooperate with the locking plate to make the locking plate have a movement tendency to move downward;

[0009] An unlocking push rod is slidably mounted on the base, the unlocking push rod has a matching portion and a locking groove, the matching portion is used to match with the locking plate, and the unlocking push rod has a first working position and a second working position; when the unlocking push rod is in the first working position, the lower end of the locking plate passes through the base, so that the base is positioned with the external structure; when the unlocking push rod is in the second working position, the unlocking push rod is pressed and moved, the matching portion drives the locking plate to move upward, and the base is no longer positioned with the external structure;

[0010] A second spring is used to cooperate with the unlocking push rod and return to the first working position when the unlocking push rod is not subjected to external force;

[0011] The opening and closing interlocking mechanism comprises:

[0012] A closing bracket plate, comprising a vertical portion and a horizontal portion located at the lower end of the vertical portion, wherein the horizontal portion is fixed to the base, and a middle portion of the vertical portion has an escape opening, and the vertical portion is mounted on the unlocking push rod through the escape opening;

[0013] An unlocking baffle is vertically slidably arranged on the closing bracket plate, and the unlocking baffle comprises a connecting portion, a first locking portion extending downward to pass through the bottom plate, and a second locking portion matched with the locking groove. When the unlocking push rod is in the first working position, the locking groove corresponds to the second locking portion and can be locked by the second locking portion.

[0014] The switch-opening and closing hook plate is rotatably mounted on the vertical portion. The switch-opening and closing hook plate has an arc-shaped slideway and an operating hole for the square rod to pass through. The connecting portion is slidably matched with the arc-shaped slideway.

[0015] The middle part of the closing bracket plate is mounted on the unlocking push rod, so that the closing and opening interlocking mechanism and the unlocking mechanism are combined in one area, the structure is compact, and the volume can be effectively reduced.

[0016] In the initial state, the unlocking push rod is in the first working position. At this time, the lower end of the locking plate passes through the base and cooperates with the external structure to limit the base. The lower end of the first locking part of the unlocking baffle also passes through the base and cooperates with the external structure to limit the base, and the second locking part is inserted into the locking groove, so that the unlocking push rod cannot be pressed; when the operation of the opening and closing hook plate rotates, thereby driving the unlocking baffle to move up, the first locking part disengages from the external structure, and the second locking part disengages from the locking groove. At this time, the unlocking push rod can be pressed, and when pressed, it can switch from the first working position to the second working position.

[0017] The opening and closing interlocking mechanism of the present application has a simple structure. By rotating the opening and closing hook plate, the connecting part can be driven to move the unlocking baffle up and down, so that the first locking part and the second locking part can unlock or lock the corresponding structure of the hand-cranked interlocking device.

[0018] In one embodiment of the present invention, the unlocking baffle has a plurality of vertical holes arranged vertically, and the opening and closing interlocking mechanism further includes a first screw, which is screwed on the vertical portion and passes through the corresponding vertical holes.

[0019] In one embodiment of the present invention, the connecting portion has a threaded hole, and the opening and closing interlocking mechanism further includes a second screw, and the second screw passes through the arc-shaped slideway and is connected to the threaded hole of the connecting portion.

[0020] In one embodiment of the present invention, the horizontal portion has a limiting hole for the first locking portion to pass through.

[0021] In one embodiment of the present invention, the second locking portion is a slot.

[0022] In one embodiment of the present invention, a multi-station bracket is further included which is mounted on the base, and the multi-station bracket includes:

[0023] The frame is a plastic part, having an electric operation position mounting hole, a connection position mounting hole and a test position mounting hole, and the frame has two mounting cavities between the connection position mounting hole and the test position mounting hole;

[0024] A first micro switch, used for being installed in the electric control position installation hole;

[0025] The second micro switch is used to be installed in the connection position mounting hole or the test position mounting hole;

[0026] The trigger assembly is installed in the installation cavity close to the second micro switch and is used to cooperate with the second micro switch to trigger the second micro switch.

[0027] In one embodiment of the present invention, the trigger component includes:

[0028] A trigger rod is slidably mounted in the mounting cavity, the lower end of the trigger rod passes through the frame, and the upper end of the trigger rod is used to cooperate with a switch button of a corresponding micro switch;

[0029] The trigger spring is installed in the installation cavity and cooperates with the trigger rod to make the trigger rod have a movement tendency to move downward.

[0030] In one embodiment of the present invention, the upper end of the trigger rod has an inclined surface, and the inclined surface cooperates with the switch button of the corresponding micro switch.

[0031] The inclined surface can better cooperate with the switch button of the micro switch.

[0032] In one embodiment of the present invention, a third micro switch is further included, and the second micro switch and the third micro switch are respectively installed in the connection position mounting hole and the test position mounting hole; there are two trigger components, which are respectively installed in the two mounting cavities, and the two trigger components respectively cooperate with the second micro switch and the third micro switch to trigger the corresponding micro switches.

[0033] In one embodiment of the present invention, the unlocking push rod has a trigger portion. When the unlocking push rod is in the second working position, the unlocking push rod is pressed and moved. The trigger portion is used to cooperate with the first micro switch to trigger the first micro switch.

[0034] In one embodiment of the present invention, the frame has three position marks, and the three position marks correspond to the electric control installation hole, the connection installation hole and the test installation hole respectively.

[0035] In one embodiment of the present invention, the frame has two mounting grooves, and the frame also includes a clamping member clamped on the top of the mounting groove, the clamping member has hollow parts corresponding to the two mounting grooves respectively, and the mounting groove and the clamping member form two mounting cavities; at least one hollow part has a baffle.

[0036] When one installation cavity is idle, the retaining net can be used to block debris from entering the lower end of the frame through the hollow part. When both installation cavities need to install trigger components, because the frame is a plastic part, the retaining net can be disconnected from the hollow part by simply pressing hard.

[0037] In one embodiment of the present invention, an indicator assembly mounted on the base is further included, and the indicator assembly includes:

[0038] The indicating crank arm has a middle portion rotatably mounted on the base through a rotating shaft, one end of the indicating crank arm passes through the base and has a pressure-bearing portion, and the other end is an indicating end;

[0039] An indication bracket, fixed to the indication end, with a plurality of indication marks on the indication bracket;

[0040] The indicating torsion spring is installed on the base and is used to cooperate with the indicating crank arm to reset the indicating crank arm.

[0041] In one embodiment of the present invention, a positioning member is further included for fixing on the partition of the electrical cabinet, the positioning member has two trigger grooves, the two trigger grooves correspond to the lower ends of the two mounting cavities respectively, the trigger groove has a trigger convex surface, the trigger convex surface is used to cooperate with the trigger rod, so that the trigger rod overcomes the elastic force of the trigger spring and moves upward to trigger the switch button of the micro switch;

[0042] The positioning member also has a pressure-applying surface matched with the pressure-bearing portion, and the pressure-bearing portion is driven by the pressure-applying surface to drive the indicating crank arm to rotate.

[0043] In one embodiment of the present invention, a pressure column is installed on the locking plate, and the matching portion is a driving surface. After the unlocking push rod is pressed and moved, the matching portion cooperates with the pressure column to drive the locking plate to move upward. Through the cooperation of the driving surface and the pressure column, it is convenient for the unlocking push rod to drive the locking plate to move upward after being pushed.

[0044] In one embodiment of the present invention, the base has an L-shaped plate, the L-shaped plate includes a vertical plate and a horizontal plate located at the upper end of the vertical plate, the upper end of the locking plate is slidably arranged on the horizontal plate, the first spring sleeve is arranged on the upper part of the locking plate and the upper end is against the horizontal plate; the vertical plate has a strip-shaped vertical hole for the end of the pressure column to pass through. The pressure column and the locking plate can be further defined by the strip-shaped vertical hole, and the structure is more reliable during movement. The setting of the L-shaped plate facilitates the reliable force of the locking plate.

[0045] In one embodiment of the present invention, the vertical plate has a strip-shaped vertical hole for the end of the pressure column to pass through. The pressure column and the locking plate can be further defined by the strip-shaped vertical hole, and the structure is more reliable during movement.

[0046] In one embodiment of the present invention, the base has a vertical portion, one end of the unlocking push rod is slidably disposed on the vertical portion, the second spring is sleeved on one end of the unlocking push rod adjacent to the vertical portion, and one end of the second spring abuts against the vertical portion. The vertical portion is provided to facilitate installation of the unlocking push rod and the second spring.

[0047] The beneficial effect of the present invention is that the middle part of the closing bracket plate is mounted on the unlocking push rod, so that the closing and opening interlocking mechanism and the unlocking mechanism are combined in one area, the structure is compact, and the volume can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a structural diagram of the drawer interlocking mechanism;

[0049] Figure 2 This is a schematic diagram of the drawer interlocking mechanism without the multi-station bracket;

[0050] Figure 3 This is a schematic diagram of the drawer interlocking mechanism from another angle after removing the multi-station bracket;

[0051] Figure 4 is a schematic diagram of a positioning member;

[0052] Figure 5 It is a schematic diagram of the frame;

[0053] Figure 6 This is a schematic diagram of the frame from another angle;

[0054] Figure 7 It is a schematic diagram of a multi-station bracket;

[0055] Figure 8 It is a top view of the multi-station bracket;

[0056] Fig. 9 This is a schematic diagram of the multi-station bracket from another angle;

[0057] Fig.10 yes Figure 8 AA section view;

[0058] Fig.11 is a schematic diagram of the second micro switch and the trigger assembly;

[0059] Fig.12 Schematic diagram of the drawer interlocking mechanism of embodiment 2.

[0060] The reference numerals in the figures are:

[0061] 1. Base; 2. Indicator assembly; 3. Interlocking mechanism for opening and closing the switch; 4. Multi-station bracket; 5. Unlocking mechanism; 6. Positioning piece; 7. Trigger slot; 8. Trigger convex surface; 9. Indicator crank arm; 10. Rotating shaft; 11. Pressure-bearing part; 12. Indicator end; 13. Avoidance; 14. Indicator bracket; 15. Indicator mark; 16. Indicator torsion spring; 17. Closing bracket plate; 18. Vertical part; 19. Horizontal part; 20. Unlocking baffle; 21. First locking part; 22. Second locking part; 23. Opening and closing hook plate; 24. Arc slide; 25. Operating hole; 26. Connecting part; 27. Vertical hole; 28. First screw; 29. ​​Second screw; 31. Locking plate; 32 , first spring; 33, unlocking push rod; 34, locking groove; 35, second spring; 36, pressure column; 37, L-shaped plate; 38, vertical plate; 39, horizontal plate; 40, strip vertical hole; 41, vertical part; 42, pressure surface; 43, trigger part; 45, limit hole; 58, frame; 59, electric operation position mounting hole; 60, connection position mounting hole; 61, test position mounting hole; 62, mounting cavity; 63, first micro switch; 64, second micro switch; 65, trigger assembly; 66, trigger rod; 67, switch button; 68, trigger spring; 69, inclined surface; 72, position mark; 73, mounting groove; 74, clamp; 75, hollow part; 76, retaining net. DETAILED DESCRIPTION

[0062] The present invention is described in detail below in conjunction with the accompanying drawings.

[0063] Example 1

[0064] like Figure 1 , 2 As shown in FIG. 3 , a drawer interlocking mechanism comprises a base 1 and an opening and closing interlocking mechanism 3 and an unlocking mechanism 5 installed on the base 1 , wherein the unlocking mechanism 5 comprises:

[0065] A locking piece 31 is slidably mounted on the base 1, and the locking piece 31 is used to cooperate with the external structure to lock or unlock the base 1;

[0066] The first spring 32 is used to cooperate with the locking piece 31 to make the locking piece 31 have a movement tendency to move downward;

[0067] The unlocking push rod 33 is slidably mounted on the base 1. The unlocking push rod 33 has a matching portion and a locking groove 34. The matching portion is used to match with the locking plate 31. The unlocking push rod 33 has a first working position and a second working position. When the unlocking push rod 33 is in the first working position, the lower end of the locking plate 31 passes through the base 1, so that the base 1 is positioned with the external structure. When the unlocking push rod 33 is in the second working position, the unlocking push rod 33 is pressed and moved, and the matching portion drives the locking plate 31 to move upward, so that the base 1 is no longer positioned with the external structure.

[0068] The second spring 35 is used to cooperate with the unlocking push rod 33, and when the unlocking push rod 33 is not subjected to external force, it returns to the first working position;

[0069] The opening and closing interlocking mechanism 3 comprises:

[0070] The closing bracket plate 17 has a vertical portion 18 and a horizontal portion 19 located at the lower end of the vertical portion 18, the horizontal portion 19 is fixed on the base 1, and the middle of the vertical portion 18 has an escape opening 13, and the vertical portion 18 is mounted on the unlocking push rod 33 through the escape opening 13;

[0071] The unlocking baffle 20 is vertically slidably arranged on the closing bracket plate 17. The unlocking baffle 20 has a connecting portion 26, a first locking portion 21 extending downward to pass through the bottom plate, and a second locking portion 22 matched with the locking groove 34. When the unlocking push rod 33 is in the first working position, the locking groove 34 corresponds to the second locking portion 22 and can be locked by the second locking portion 22.

[0072] The switch-opening and closing hook plate 23 is rotatably mounted on the vertical portion 18 . The switch-opening and closing hook plate 23 has an arc-shaped slideway 24 and an operating hole 25 for the square rod to pass through. The connecting portion 26 is slidably matched with the arc-shaped slideway 24 .

[0073] The middle part of the closing bracket plate 17 is mounted on the unlocking push rod 33, so that the closing and opening interlocking mechanism 3 and the unlocking mechanism 5 are combined in one area, the structure is compact, and the volume can be effectively reduced.

[0074] In the initial state, the unlocking push rod 33 is in the first working position. At this time, the lower end of the locking plate 31 passes through the base 1 and cooperates with the external structure to limit the base 1. The lower end of the first locking portion 21 of the unlocking baffle 20 also passes through the base 1 and cooperates with the external structure to limit the base 1, and the second locking portion 22 is inserted into the locking groove 34, so that the unlocking push rod 33 cannot be pressed; when the operation of the opening and closing hook plate 23 rotates, thereby driving the unlocking baffle 20 to move upward, the first locking portion 21 disengages from the external structure, and the second locking portion 22 disengages from the locking groove 34. At this time, the unlocking push rod 33 can be pressed, and when pressed, it can switch from the first working position to the second working position.

[0075] In this embodiment, the second locking portion 22 is a card slot. The switch-on / off interlocking mechanism 3 of the present application has a simple structure, and by rotating the switch-on / off hook plate 23, the connecting portion 26 can be driven to move the unlocking baffle 20 up and down, so that the first locking portion 21 and the second locking portion 22 can unlock or lock the corresponding structure of the hand-cranked interlocking device.

[0076] like Figure 1 , 2As shown in FIG. 3 , in this embodiment, the unlocking baffle 20 has a plurality of vertical holes 27 arranged vertically, and the opening and closing interlocking mechanism 3 further includes a first screw 28 , which is screwed onto the vertical portion 18 and passes through the corresponding vertical hole 27 .

[0077] In this embodiment, the connection portion 26 has a threaded hole, and the opening and closing interlocking mechanism 3 further includes a second screw 29 , which passes through the arc-shaped slideway 24 and is connected to the threaded hole of the connection portion 26 .

[0078] like Figure 1 and 3 As shown, in this embodiment, the horizontal portion 19 has a limiting hole 45 for the first locking portion 21 to pass through.

[0079] like Figure 1 , 5 , 6, 7, 8, 9, 10 and 11, in this embodiment, a multi-station bracket 4 is also included which is mounted on the base 1. The multi-station bracket 4 includes:

[0080] The frame 58 is a plastic part, having an electric operation position mounting hole 59, a connection position mounting hole 60 and a test position mounting hole 61. The frame 58 has two mounting cavities 62 between the connection position mounting hole 60 and the test position mounting hole 61.

[0081] A first micro switch 63, used for being installed in the electric control position installation hole 59;

[0082] A second micro switch 64, used for being installed in the connection position installation hole 60 or the test position installation hole 61;

[0083] The trigger assembly 65 is installed in the installation cavity 62 close to the second micro switch 64 and is used to cooperate with the second micro switch 64 to trigger the second micro switch 64 .

[0084] like Fig.10 and 11 As shown, in this embodiment, the trigger component 65 includes:

[0085] A trigger rod 66 is slidably mounted in the mounting cavity 62, the lower end of the trigger rod 66 passes through the frame 58, and the upper end of the trigger rod 66 is used to cooperate with a switch button 67 of a corresponding micro switch;

[0086] The trigger spring 68 is installed in the installation cavity 62 and cooperates with the trigger rod 66 to make the trigger rod 66 have a movement tendency to move downward.

[0087] In this embodiment, the upper end of the trigger rod 66 has an inclined surface 69 , and the inclined surface 69 cooperates with the switch button 67 of the corresponding micro switch.

[0088] The inclined surface 69 can better cooperate with the switch button 67 of the micro switch.

[0089] In other embodiments, the multi-station bracket 4 also includes a third microswitch, and the second microswitch 64 and the third microswitch are respectively installed in the connection position mounting hole 60 and the test position mounting hole 61; there are two trigger components 65, which are respectively installed in two mounting cavities 62, and the two trigger components 65 respectively cooperate with the second microswitch 64 and the third microswitch to trigger the corresponding microswitches.

[0090] like Figure 3 As shown, in this embodiment, the unlocking push rod 33 has a trigger portion 43. When the unlocking push rod 33 is in the second working position, the unlocking push rod 33 is pressed and moved. The trigger portion 43 is used to cooperate with the first micro switch 63 to trigger the first micro switch 63.

[0091] like Figure 1 As shown, in this embodiment, the frame 58 has three position marks 72 , and the three position marks 72 correspond to the electric control installation hole 59 , the connection installation hole 60 , and the test installation hole 61 , respectively.

[0092] like Figure 5 and 10 As shown, in this embodiment, the frame 58 has two mounting grooves 73, and the frame 58 also includes a clamp 74 clamped on the top of the mounting groove 73, the clamp 74 has hollow parts 75 corresponding to the two mounting grooves 73 respectively, and the mounting grooves 73 and the clamp 74 form two mounting cavities 62; at least one hollow part 75 has a retaining net 76.

[0093] When one of the mounting cavities 62 is idle, the blocking net 76 can block debris from falling into the lower end of the frame 58 through the hollow portion 75. When both mounting cavities 62 need to be installed with the trigger assembly 65, because the frame 58 is a plastic part, the blocking net 76 can be disconnected from the hollow portion 75 by simply pressing hard.

[0094] like Figure 1 , 2 As shown in FIG. 3 , in this embodiment, an indication component 2 mounted on the base 1 is also included, and the indication component 2 includes:

[0095] The indicating crank arm 9 has a middle portion rotatably mounted on the base 1 via a rotating shaft 10, one end of the indicating crank arm 9 passes through the base 1 and has a pressure-bearing portion 11, and the other end is an indicating end 12;

[0096] An indication bracket 14 is fixed to the indication end 12, and a plurality of indication marks 15 are provided on the indication bracket 14;

[0097] The indicating torsion spring 16 is installed on the base 1 and is used to cooperate with the indicating crank arm 9 to reset the indicating crank arm 9.

[0098] like Figure 4 As shown, in this embodiment, the drawer interlocking mechanism further includes a positioning member 6 for fixing on the partition of the electrical cabinet, the positioning member 6 has two triggering grooves 7, the two triggering grooves 7 respectively correspond to the lower ends of the two mounting cavities 62, and the triggering groove 7 has a triggering convex surface 8, the triggering convex surface 8 is used to cooperate with the triggering rod 66, so that the triggering rod 66 overcomes the elastic force of the triggering spring 68 and moves upward to trigger the switch button 67 of the micro switch;

[0099] The positioning member 6 also has a pressure surface 42 that cooperates with the pressure-bearing portion 11 , and the pressure-bearing portion 11 is driven by the pressure surface 42 to drive the indicating crank arm 9 to rotate.

[0100] like Figure 2 and 3 As described above, in this embodiment, a pressure column 36 is installed on the lock plate 31, and the matching portion is a driving surface. After the unlocking push rod 33 is pressed and moved, the matching portion cooperates with the pressure column 36 to drive the lock plate 31 to move upward. Through the cooperation between the driving surface and the pressure column 36, it is convenient for the unlocking push rod 33 to be pushed and drive the lock plate 31 to move upward.

[0101] like Figure 2 and 3 As described above, in this embodiment, the base 1 has an L-shaped plate 37, which includes a vertical plate 38 and a horizontal plate 39 located at the upper end of the vertical plate 38. The upper end of the locking plate 31 is slidably arranged on the horizontal plate 39. The first spring 32 is sleeved on the upper part of the locking plate 31 and the upper end is against the horizontal plate 39. The vertical plate 38 has a strip-shaped vertical hole 40 for the end of the pressure column 36 to pass through. The pressure column 36 and the locking plate 31 can be further defined by the strip-shaped vertical hole 40, and the structure is more reliable during movement. The setting of the L-shaped plate 37 facilitates the reliable force of the locking plate 31.

[0102] like Figure 2 and 3 As described above, in this embodiment, the vertical plate 38 has a strip-shaped vertical hole 40 for the end of the pressure column 36 to pass through. The pressure column 36 and the locking plate 31 can be further defined by the strip-shaped vertical hole 40, and the structure is more reliable during movement.

[0103] like Figure 2 and 3 As described above, in this embodiment, the base 1 has a vertical portion 41, one end of the unlocking push rod 33 is slidably disposed on the vertical portion 41, the second spring 35 is sleeved on one end of the unlocking push rod 33 adjacent to the vertical portion 41, and one end of the second spring 35 abuts against the vertical portion 41. The vertical portion 41 is provided to facilitate the installation of the unlocking push rod 33 and the second spring 35.

[0104] Example 2

[0105] like Fig.12 Shown is a drawer interlocking mechanism with another layout form.

[0106] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A drawer interlocking mechanism, characterized in that: It includes a base and an opening and closing interlocking mechanism and an unlocking mechanism installed on the base, and the unlocking mechanism includes: A locking piece, slidably mounted on the base, the locking piece being used to cooperate with an external structure to lock or unlock the base; A first spring, used to cooperate with the locking plate to make the locking plate have a movement tendency to move downward; An unlocking push rod is slidably mounted on the base, the unlocking push rod has a matching portion and a locking groove, the matching portion is used to match with the locking plate, and the unlocking push rod has a first working position and a second working position; when the unlocking push rod is in the first working position, the lower end of the locking plate passes through the base, so that the base is positioned with the external structure; when the unlocking push rod is in the second working position, the unlocking push rod is pressed and moved, the matching portion drives the locking plate to move upward, and the base is no longer positioned with the external structure; The second spring is used to cooperate with the unlocking push rod, and when the unlocking push rod is not subjected to external force, it returns to the first working position; the opening and closing interlocking mechanism includes: A closing bracket plate, comprising a vertical portion and a horizontal portion located at the lower end of the vertical portion, wherein the horizontal portion is fixed to the base, and a middle portion of the vertical portion has an escape opening, and the vertical portion is mounted on the unlocking push rod through the escape opening; An unlocking baffle is vertically slidably arranged on the closing bracket plate, and the unlocking baffle comprises a connecting portion, a first locking portion extending downward to pass through the bottom plate, and a second locking portion matched with the locking groove. When the unlocking push rod is in the first working position, the locking groove corresponds to the second locking portion and can be locked by the second locking portion. A switch-on / off hook plate is rotatably mounted on the vertical portion, the switch-on / off hook plate has an arc-shaped slideway and an operating hole for the square rod to pass through, and the connecting portion is slidably matched with the arc-shaped slideway; A pressure column is installed on the locking plate, and the matching portion is a driving surface. After the unlocking push rod is pressed and moved, the matching portion cooperates with the pressure column to drive the locking plate to move upward; The base has a vertical portion, one end of the unlocking push rod is slidably arranged on the vertical portion, the second spring is sleeved on one end of the unlocking push rod adjacent to the vertical portion, and one end of the second spring is against the vertical portion.

2. The drawer interlocking mechanism according to claim 1, characterized in that: It also includes a multi-station bracket installed on the base, and the multi-station bracket includes: The frame is a plastic part, having an electric operation position mounting hole, a connection position mounting hole and a test position mounting hole, and the frame has two mounting cavities between the connection position mounting hole and the test position mounting hole; A first micro switch, used for being installed in the electric control position installation hole; The second micro switch is used to be installed in the connection position mounting hole or the test position mounting hole; The trigger assembly is installed in the installation cavity close to the second micro switch and is used to cooperate with the second micro switch to trigger the second micro switch.

3. The drawer interlocking mechanism according to claim 2, characterized in that: The trigger component comprises: A trigger rod is slidably mounted in the mounting cavity, the lower end of the trigger rod passes through the frame, and the upper end of the trigger rod is used to cooperate with a switch button of a corresponding micro switch; The trigger spring is installed in the installation cavity and cooperates with the trigger rod to make the trigger rod have a movement tendency to move downward.

4. The drawer interlocking mechanism according to claim 2, characterized in that: The unlocking push rod has a triggering portion. When the unlocking push rod is in the second working position, the unlocking push rod is pressed and moved. The triggering portion is used to cooperate with the first micro switch to trigger the first micro switch.

5. The drawer interlocking mechanism according to claim 2, characterized in that: The frame has three position markings, which respectively correspond to the electric operation position mounting hole, the connection position mounting hole and the test position mounting hole; the frame has two mounting slots, and the frame also includes a clamp connected to the top of the mounting slot, the clamp has hollow parts corresponding to the two mounting slots respectively, and the mounting slot and the clamp form two mounting cavities; at least one hollow part has a retaining net.

6. The drawer interlocking mechanism according to claim 2, characterized in that: Also included is an indicator assembly mounted on the base, the indicator assembly comprising: The indicating crank arm has a middle portion rotatably mounted on the base through a rotating shaft, one end of the indicating crank arm passes through the base and has a pressure-bearing portion, and the other end is an indicating end; An indication bracket, fixed to the indication end, with a plurality of indication marks on the indication bracket; The indicating torsion spring is installed on the base and is used to cooperate with the indicating crank arm to reset the indicating crank arm.

7. The drawer interlocking mechanism according to claim 6, characterized in that: It also includes a positioning member for fixing on the partition of the electrical cabinet, the positioning member having two trigger grooves, the two trigger grooves respectively corresponding to the lower ends of the two mounting cavities, the trigger groove having a trigger convex surface, the trigger convex surface being used to cooperate with the trigger rod, so that the trigger rod overcomes the elastic force of the trigger spring and moves upward to trigger the switch button of the micro switch; The positioning member also has a pressure-applying surface matched with the pressure-bearing portion, and the pressure-bearing portion is driven by the pressure-applying surface to drive the indicating crank arm to rotate.

8. The drawer interlocking mechanism according to claim 1, characterized in that: The base has an L-shaped plate, which includes a vertical plate and a horizontal plate located at the upper end of the vertical plate. The upper end of the locking plate is slidably arranged on the horizontal plate. The first spring sleeve is arranged on the upper part of the locking plate and the upper end is against the horizontal plate. The vertical plate has a strip-shaped vertical hole for the end of the pressure column to pass through.

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