Interlocking mechanism for linkage of switch cabinet door lock and grounding switch

Abstract

The utility model discloses an interlocking mechanism for linkage of a switch cabinet door lock and a grounding switch, relates to the technical field of switch cabinet door interlocking mechanisms, and aims to solve the problems that in an electric power system, a switch cabinet needs to be frequently switched on and switched off, a transmission part is abraded in the repeated movement process, and the operation is inconvenient. The problem that normal operation of a switch cabinet is affected due to the fact that the movement precision and reliability of a switch cabinet interlocking mechanism are reduced due to abrasion of a transmission part is solved, a rotating shaft is rotationally installed on one side in the switch cabinet, and a transmission rod is slidably installed on the other side in the switch cabinet. A linkage rod is slidably mounted in the center of the interior of the switch cabinet, a pushing block is mounted in the middle of one side of the interior of the switch cabinet, a pushing block rotating shaft is rotatably mounted in the middle of the upper end of the pushing block, and a powder adding mechanism is mounted above a second bevel gear and a driving gear; and a shifting mechanism is fixedly mounted on one side of the second bevel gear and one side of the driving gear.

Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear door interlocking mechanism technical field, specifically for a kind of interlocking mechanism for switchgear door lock and grounding switch linkage. BACKGROUND

[0002] The interlocking mechanism of switchgear door lock and grounding switch is an important safety device, which aims to ensure that the door of the switchgear cannot be mistakenly opened when the grounding switch is in a specific state, thereby preventing electric shock and other safety accidents. Ensure that the switchgear door cannot be opened when the grounding switch is not in the open state, thereby preventing the operator from being electrically shocked. Through the design of the interlocking mechanism, the overall safety of the switchgear is improved, and the risk of safety accidents is reduced. To ensure the normal work of the interlocking mechanism, it should be maintained and inspected regularly. This includes: checking whether the components of the interlocking mechanism are intact, and replacing them in time if they are damaged. Check if the cooperation of moving rod, top plate, boss and other components is tight, and tighten them if they are loose. Check if the cooperation of cam mechanism and transmission shaft is good, and repair or replace them if they are worn out. Check if the unlocking mechanism works smoothly and reliably, and troubleshoot it in time if it fails.

[0003] Chinese patent publication No. CN211628926U discloses a switch cabinet door interlocking mechanism, relating to the field of switch cabinets, comprising a cabinet body and a lower cabinet door. The lower cabinet door is located in the middle of the cabinet body. The rear end of the lower cabinet door is provided with a disconnecting switch fixator, a door lock core block, and a grounding switch fixator. The door lock core block is located on one side of the grounding switch fixator. The setting of the first clamping plate is beneficial to the control of the grounding switch fixator. It is beneficial to open or close the grounding switch during use, and it is beneficial to protect the safety of workers during use. The setting of the second clamping plate is beneficial to the control of the door lock core block, which can control the movement of the switch stop rod, making it easy to open and close the lower cabinet door 2. It is convenient and simple in structure, easy to maintain during use, and has better effect than traditional methods.

[0004] The existing technical solutions in the above have the following defects: In the power system, the switch cabinet needs to be frequently operated, and the transmission components will be worn out during repeated movement. The wear of the transmission components will cause the movement precision and reliability of the switch cabinet interlocking mechanism to decrease, thereby affecting the normal operation of the switch cabinet. Therefore, we propose an interlocking mechanism for switchgear door lock and grounding switch linkage to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0005] The utility model discloses a purpose at providing a kind of interlocking mechanism for switchgear door lock and grounding switch linkage, to solve the problem that the switchgear needs to be frequently operated in the power system in the above background art, transmission component can be worn in the repeated movement process, transmission component wear can lead to the movement precision and reliability of switchgear interlocking mechanism decline, to affect the normal operation of switchgear.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of interlocking mechanism for switchgear door lock and grounding switch linkage, including switchgear, the front side of the switchgear is equipped with switchgear front door, the inside one side of the switchgear is rotatably installed with rotating shaft, the inside other side of the switchgear is slidably installed with transmission rod, the inside center position of the switchgear is slidably installed with linkage rod, the inside one side of the switchgear is installed with push block in middle position, push block pivot is rotatably installed in the middle position of push block upper end, first bevel gear is fixedly sleeved with the outside of push block pivot side, second bevel gear is fixedly sleeved with the outside of rotating shaft front end, the first bevel gear is meshed with second bevel gear, the rear end of the rotating shaft is fixedly sleeved with limit wheel, the limit wheel is fixedly sleeved with driving gear on one side, the first gear rack is fixedly installed on the one side of linkage rod upper end, the second gear rack is fixedly installed on the one side of linkage rod lower end, powder adding mechanism is installed above second bevel gear and driving gear, the one side of second bevel gear and the one side of driving gear are fixedly installed with knob mechanism.

[0007] Preferably, the lower end of the push block is provided with a first pressing plate sliding groove on one side, and the first pressing plate sliding groove is slidably connected with the first pressing plate.

[0008] Preferably, the front side of the switchgear is provided with a switchgear rear door, a second pressing plate is fixedly installed on one side of the switchgear rear door, a linkage plate is rotatably installed on one side in the inside of the switchgear through a linkage plate pivot, a second pressing plate sliding groove is formed on one side of the upper end of the linkage plate, the second pressing plate sliding groove is slidably connected with the second pressing plate, the second pressing plate extends to the inside of the switchgear, and a linkage plate sliding groove is formed in the lower end of the linkage plate.

[0009] Preferably, the rear end of the transmission rod is fixedly installed with a linkage block, the linkage plate sliding groove is slidably connected with the linkage block, and a tension spring is fixedly installed between the upper end of the linkage plate and the inner wall of the switchgear.

[0010] Preferably, the front end of the transmission rod is fixedly installed with a limiting block, the outer side of the limiting wheel is annularly provided with four limiting grooves, the limiting grooves are in meshing connection with the limiting block, the lower portion of the switch cabinet is installed with an earthing switch, the inside of the earthing switch is rotatably installed with an earthing knife through an earthing knife rotating shaft, the front end of the earthing knife rotating shaft is fixedly installed with an earthing knife driven gear, the lower end of the linkage rod is fixedly installed with a second gear row, and the second gear row is in meshing connection with the earthing knife driven gear.

[0011] Preferably, the lower end of the pushing mechanism is provided with a pushing mechanism mounting ring, a pushing mechanism through hole is formed at the middle position of the pushing mechanism mounting ring, and the upper end of the pushing mechanism is fixedly provided with a pushing mechanism pushing rod.

[0012] Preferably, the upper end of the powder adding mechanism is provided with a material bin, the lower end of the powder adding mechanism is provided with a lower hopper, the lower end of the material bin is provided with a discharging pipe, the lower portion of the material bin is rotatably installed with a limiting turntable, the middle position of the limiting turntable is installed with a limiting turntable rotating shaft, the limiting turntable is in close fit with the discharging pipe, the inside of the limiting turntable rotating shaft is annularly provided with six discharging through holes, the outside of the limiting turntable is annularly fixedly installed with limiting turntable baffles, and the upper end of the pushing mechanism pushing rod is located between adjacent limiting turntable baffles.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The rotating shaft drives the pushing mechanism to rotate synchronously, the pushing mechanism pushing rod pushes the limiting turntable baffle when the pushing mechanism rotates, thereby driving the limiting turntable to rotate, moving the discharging through hole to the lower portion of the discharging pipe and then moving away, thereby allowing a small amount of graphite powder used for lubrication in the material bin to fall above the first bevel gear and the second bevel gear, thereby lubricating the transmission, solving the problem that the switch cabinet needs to be frequently operated in the power system, the transmission component is worn in the repeated movement process, the transmission component wear causes the movement precision and reliability of the switch cabinet interlocking mechanism to decrease, thereby affecting the normal operation of the switch cabinet.

[0015] 2. When the detection is completed, if the rear door of the switch cabinet is in the open state, the lower end of the linkage plate will rotate forward under the pulling of the first tension spring, thereby driving the linkage block to slide forward under the limiting pushing of the linkage plate sliding groove, and the transmission rod sliding forward will cause the limiting block to be clamped into the limiting groove of the limiting wheel, thereby limiting the rotation of the limiting wheel, so that the rotating shaft cannot be rotated when closing, thereby causing the first pressing plate to be unable to push the pushing block, and the closing operation of the front door of the switch cabinet cannot be completed, thereby causing the staff to find that the rear door of the switch cabinet is not closed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the utility model;

[0017] Figure 2 is a partial enlarged view of A area in the utility model Figure 1 ;

[0018] Figure 3 is a partial enlarged view of B area in the utility model Figure 1 ;

[0019] Figure 4 is a connection relation diagram of the rotating shaft, transmission rod and limit wheel in the utility model;

[0020] Figure 5 is a structural schematic view of the limit wheel and limit block in the utility model;

[0021] Figure 6 is a structural schematic view of the powder adding mechanism in the utility model;

[0022] Figure 7 is a C-C direction sectional view of the utility model Figure 6 ;

[0023] Figure 8 is a perspective view of the pushing mechanism in the utility model.

[0024] In the drawing: 1, switch cabinet; 2, switch cabinet front door; 3, first pressing plate; 4, pushing block; 5, powder adding mechanism; 6, rotating shaft; 7, transmission rod; 8, second pressing plate; 9, linkage plate; 10, limit wheel; 11, linkage rod; 12, grounding switch; 13, grounding knife driven gear; 14, second gear row; 15, grounding knife; 16, grounding knife rotating shaft; 17, first pressing plate sliding groove; 18, pushing block rotating shaft; 19, first bevel gear; 20, second bevel gear; 21, pushing mechanism; 22, first tension spring; 23, second pressing plate sliding groove; 24, linkage plate rotating shaft; 25, linkage plate sliding groove; 26, linkage block; 27, switch cabinet rear door; 28, limit block; 29, driving gear; 30, first gear row; 31, pushing mechanism pushing rod; 32, limit groove; 33, material bin; 34, limit rotating disc; 35, discharging pipe; 36, discharging hopper; 37, limit rotating disc rotating shaft; 38, limit rotating disc baffle; 39, discharging through hole; 40, pushing mechanism mounting ring; 41, pushing mechanism through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Please refer to Figures 1-8The utility model provides an embodiment: a kind of interlock mechanism for switchgear door lock and grounding switch linkage, including switchgear 1, the front side of switchgear 1 is equipped with switchgear front door 2, the inside one side of switchgear 1 is rotatably installed with rotating shaft 6, the inside other side of switchgear 1 is slidably installed with transmission rod 7, the center position of inside of switchgear 1 is slidably installed with linkage rod 11, the middle position of inside one side of switchgear 1 is equipped with push block 4, the middle position of push block 4 upper end is rotatably installed with push block pivot 18, the outside of push block pivot 18 one side is fixedly equipped with first bevel gear 19, the outside of rotating shaft 6 front end is fixedly equipped with second bevel gear 20, first bevel gear 19 is engaged with second bevel gear 20, the rear end of rotating shaft 6 is fixedly equipped with limit wheel 10, one side of limit wheel 10 is fixedly equipped with driving gear 29, the one side of driving gear 29 linkage rod 11 upper end is fixedly installed with first gear row 30, the one side of linkage rod 11 lower end is fixedly installed with second gear row 14, second bevel gear 20 and driving gear 29 are installed with powder adding mechanism 5 above, one side of second bevel gear 20 and one side of driving gear 29 are fixedly installed with dialing mechanism 21.

[0027] Rotating rotating shaft 6 drives dialing mechanism 21 synchronous rotation, dialing mechanism 21 rotates when the dialing mechanism push rod 31 above pushes limit turntable baffle 38, to drive limit turntable 34 to rotate, let the blanking hole 39 move to the lower side of blanking pipe 35 and then move away, so that the graphite powder for lubrication in bunker 33 falls a small amount above first bevel gear 19 and second bevel gear 20, to lubricate transmission.

[0028] Please refer to Figures 1-2 , the one side of push block 4 lower end is equipped with first pressing plate sliding slot 17, and first pressing plate sliding slot 17 is slidably connected with first pressing plate 3.

[0029] Please refer to Figure 1 And Figure 3 , the front side of switchgear 1 is equipped with switchgear rear door 27, and the one side of switchgear rear door 27 is fixedly installed with second pressing plate 8, and the one side in the inside of switchgear 1 is rotatably installed with linkage plate 9 by linkage plate pivot 24, and the one side of linkage plate 9 upper end is equipped with second pressing plate sliding slot 23, and second pressing plate sliding slot 23 is slidably connected with second pressing plate 8, and second pressing plate 8 extends to the inside of switchgear 1, and the lower end of linkage plate 9 is equipped with linkage plate sliding slot 25, and the rear end of transmission rod 7 is fixedly installed with linkage block 26, and linkage plate sliding slot 25 is slidably connected with linkage block 26, and the upper end of linkage plate 9 and the inner wall of switchgear 1 are fixedly installed with first tension spring 22.

[0030] Please refer to Figure 1 And Figure 5The front end of the transmission rod 7 is fixedly installed with a limiting block 28, four limiting grooves 32 are annularly arranged on the outer side of the limiting wheel 10, the limiting grooves 32 are in meshing connection with the limiting block 28, the lower part of the switch cabinet 1 is installed with an earthing switch 12, the earthing switch 12 is internally rotatably installed with an earthing knife 15 through an earthing knife rotating shaft 16, the front end of the earthing knife rotating shaft 16 is fixedly installed with an earthing knife driven gear 13, the lower end of the linkage rod 11 is fixedly installed with a second gear row 14, and the second gear row 14 is in meshing connection with the earthing knife driven gear 13.

[0031] Please refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 The lower end of the poking mechanism 21 is provided with a poking mechanism installation ring 40, a poking mechanism through hole 41 is arranged at the middle position of the poking mechanism installation ring 40, and the upper end of the poking mechanism 21 is fixedly provided with a poking mechanism pushing rod 31. The upper end of the powder adding mechanism 5 is provided with a material bin 33, the lower end of the powder adding mechanism 5 is provided with a lower hopper 36, the lower end of the material bin 33 is provided with a lower discharging pipe 35, the lower part of the material bin 33 is rotatably installed with a limiting turntable 34, the limiting turntable 34 is installed with a limiting turntable rotating shaft 37 at the middle position, the limiting turntable 34 is in close contact with the lower discharging pipe 35, the inside of the limiting turntable rotating shaft 37 is annularly provided with six discharging through holes 39, the outside of the limiting turntable 34 is annularly fixedly installed with a limiting turntable baffle 38, and the upper end of the poking mechanism pushing rod 31 is located between adjacent limiting turntable baffles 38.

[0032] Working principle: when the switch cabinet 1 is opened, the rotating switch cabinet front door 2 will drive the first pressing plate 3 to move to the outside of the switch cabinet 1, the pushing block 4 is rotated counterclockwise under the tension of the second tension spring 42, the pushing block 4 drives the first bevel gear 19 to rotate through the pushing block shaft 18, the first bevel gear 19 drives the second bevel gear 20 to rotate through meshing, the second bevel gear 20 drives the rotating shaft 6 to rotate synchronously, the rotating shaft 6 drives the actuating mechanism 21 to rotate synchronously, when the actuating mechanism 21 rotates, the actuating mechanism pushing rod 31 on the upper side pushes the limiting turntable baffle 38, so that the limiting turntable 34 is driven to rotate, the discharging through hole 39 moves to the lower side of the discharging pipe 35 and then moves away, so that a small amount of graphite powder for lubrication in the material bin 33 falls on the upper side of the first bevel gear 19 and the second bevel gear 20, thereby lubricating the transmission, the rotating shaft 6 drives the driving gear 29 on the rear side to rotate, the linkage rod 11 provided with the first gear row 30 of the driving gear 29 slides downward, so that the second gear row 14 at the lower end of the linkage rod 11 slides downward, thereby driving the grounding knife driven gear 13 to rotate, the grounding knife driven gear 13 drives the grounding knife shaft 16 to rotate, and the grounding knife shaft 16 drives the grounding knife 15 to fall, thereby realizing the closing of the grounding switch 12, when the detection is completed, if the switch cabinet rear door 27 is in the opened state, the lower end of the linkage plate 9 will rotate forward under the pulling of the first tension spring 22, thereby driving the linkage block 26 to slide forward under the limiting pushing of the linkage plate sliding groove 25, the transmission rod 7 sliding forward will make the limiting block 28 clamped into the limiting groove 32 of the limiting wheel 10, thereby limiting the rotation of the limiting wheel 10, so that the rotating shaft 6 cannot be rotated when closing, thereby making the first pressing plate 3 unable to push the pushing block 4, and unable to complete the closing operation of the switch cabinet front door 2, thereby prompting the staff to find that the switch cabinet rear door 27 is not closed.

[0033] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than by the above description, and all changes coming within the meaning and equivalency range of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An interlocking mechanism for the lock of a switchgear door and the linkage of a grounding switch, comprising a switchgear (1), characterized in that: The front side of the switch cabinet (1) is provided with a switch cabinet front door (2), one side of the inside of the switch cabinet (1) is rotatably provided with a rotating shaft (6), the other side of the inside of the switch cabinet (1) is slidably provided with a transmission rod (7), the central position of the inside of the switch cabinet (1) is slidably provided with a linkage rod (11), the middle position of one side of the inside of the switch cabinet (1) is provided with a push block (4), the middle position of the upper end of the push block (4) is rotatably provided with a push block rotating shaft (18), the outside of one side of the push block rotating shaft (18) is fixedly provided with a first bevel gear (19), the outside of the front end of the rotating shaft (6) is fixedly provided with a second bevel gear (20), the first bevel gear (19) is meshedly connected with the second bevel gear (20), the rear end of the rotating shaft (6) is fixedly provided with a limiting wheel (10), one side of the limiting wheel (10) is fixedly provided with a driving gear (29), one side of the upper end of the linkage rod (11) is fixedly provided with a first gear row (30), one side of the lower end of the linkage rod (11) is fixedly provided with a second gear row (14), the upper side of the second bevel gear (20) and the driving gear (29) is provided with a powder adding mechanism (5), one side of the second bevel gear (20) and one side of the driving gear (29) are fixedly provided with a pushing mechanism (21).

2. The interlocking mechanism for the linkage of the door lock and grounding switch of the switch cabinet according to claim 1, characterized in that: One side of the lower end of the push block (4) is provided with a first pressing plate sliding groove (17), and the first pressing plate sliding groove (17) is slidably connected with a first pressing plate (3).

3. The interlocking mechanism for the linkage of the door lock and grounding switch of the switch cabinet according to claim 1, characterized in that: The front side of the switch cabinet (1) is provided with a switch cabinet rear door (27), one side of the switch cabinet rear door (27) is fixedly provided with a second pressing plate (8), one side of the inside of the switch cabinet (1) is rotatably provided with a linkage plate (9) through a linkage plate rotating shaft (24), one side of the upper end of the linkage plate (9) is provided with a second pressing plate sliding groove (23), and the second pressing plate sliding groove (23) is slidably connected with the second pressing plate (8); the second pressing plate (8) extends to the inside of the switch cabinet (1), and the lower end of the linkage plate (9) is provided with a linkage plate sliding groove (25).

4. The interlocking mechanism for the linkage of the door lock and grounding switch of the switch cabinet according to claim 3, characterized in that: The rear end of the transmission rod (7) is fixedly provided with a linkage block (26), the linkage plate sliding groove (25) is slidably connected with the linkage block (26), and the first tension spring (22) is fixedly arranged between the upper end of the linkage plate (9) and the inner wall of the switch cabinet (1).

5. The interlocking mechanism for the linkage of the door lock and grounding switch of the switchgear cabinet according to claim 1, characterized in that: The front end of the transmission rod (7) is fixedly provided with a limiting block (28), four limiting grooves (32) are annularly formed on the outer side of the limiting wheel (10), the limiting grooves (32) are meshedly connected with the limiting block (28), a grounding switch (12) is arranged below the switch cabinet (1), a grounding knife (15) is rotatably arranged in the grounding switch (12) through a grounding knife rotating shaft (16), a grounding knife driven gear (13) is fixedly arranged at the front end of the grounding knife rotating shaft (16), the lower end of the linkage rod (11) is fixedly provided with a second gear row (14), and the second gear row (14) is meshedly connected with the grounding knife driven gear (13).

6. The interlocking mechanism for the linkage of the door lock and grounding switch of the switch cabinet according to claim 1, characterized in that: The lower end of the dial mechanism (21) is provided with a dial mechanism mounting ring (40), a dial mechanism through hole (41) is opened at the middle position of the dial mechanism mounting ring (40), and the upper end of the dial mechanism (21) is fixedly provided with a dial mechanism push rod (31).

7. The interlocking mechanism for the linkage of the door lock and grounding switch of the switch cabinet according to claim 6, characterized in that: The upper end of the powder adding mechanism (5) is provided with a hopper (33), the lower end of the powder adding mechanism (5) is provided with a lower hopper (36), the lower end of the hopper (33) is provided with a lower feeding pipe (35), a limiting turntable (34) is rotatably installed below the hopper (33), a limiting turntable rotating shaft (37) is installed at the middle position of the limiting turntable (34), the limiting turntable (34) is attached to the lower feeding pipe (35), six lower feeding through holes (39) are annularly opened in the limiting turntable rotating shaft (37), a limiting turntable baffle (38) is fixedly installed outside the limiting turntable (34), and the upper end of the dial mechanism push rod (31) is located between adjacent limiting turntable baffles (38).

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