Interlocking mechanism for grounding switch and switch cabinet

Abstract

The utility model provides an interlocking mechanism for a grounding switch and a switch cabinet, and the interlocking mechanism comprises a lock plate which can rotate between an avoiding position and a blocking position, when the lock plate is located at the avoiding position, the lock plate can prevent a rear door from being opened, and when the lock plate is located at the blocking position, the rear door can be opened; when the locking block is located at the first position, the locking block stops the operation main shaft from rotating so as to enable the grounding switch to be kept in a closed state, and when the locking block is located at the second position, the operation main shaft can rotate; the transmission part is connected between the lock plate and the locking block, the locking block is located at the first position when the lock plate is located at the avoiding position, and the locking block is located at the second position when the lock plate is located at the blocking position. According to the interlocking mechanism for the grounding switch, the locking plate and the locking block are arranged, and the two parts are connected through the transmission piece, so that the locking plate can be close to the rear door, the locking block can be close to the grounding switch, and the interlocking reliability is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switch cabinet, especially a kind of interlocking mechanism and switch cabinet for grounding switch. BACKGROUND

[0002] Grounding switch and rear door are generally provided in switch cabinet.Grounding switch is used to protect the safety of staff, and generally requires that only in the closed state of grounding switch, the rear door can be opened to overhaul the equipment in cabinet.

[0003] Therefore, it is necessary to ensure the interlocking of grounding switch and rear door. SUMMARY

[0004] Therefore, the utility model provides an interlocking mechanism for grounding switch, the grounding switch includes operating spindle and grounding knife, the rotation of operating spindle can drive grounding knife to rotate between closed position and open position, the grounding switch is arranged in switch cabinet, and the switch cabinet includes cabinet body and rear door arranged on cabinet body, and the interlocking mechanism includes:

[0005] Locking plate, which can rotate between avoiding position and blocking position, locking plate can block rear door opening when locking plate is in avoiding position, and rear door can be opened when locking plate is in blocking position;

[0006] Locking block, which can move between first position and second position, locking block blocks the rotation of operating spindle to keep grounding switch in closed state when locking block is in first position, and operating spindle can rotate when locking block is in second position;

[0007] Transmission member, which is connected between locking plate and locking block, locking block is in first position when locking plate is in avoiding position, and locking block is in second position when locking plate is in blocking position.

[0008] According to the interlocking mechanism for grounding switch, two parts of locking plate and locking block are provided, and the two parts are connected by transmission member, so that locking plate is close to rear door, and locking block is close to grounding switch, thereby increasing the reliability of interlocking.In addition, the interlocking mechanism can be applied to various types of cabinet body, and the structure of grounding switch itself does not need to be changed, and the distance between locking plate and locking block can be adjusted by the length of transmission member, so that the versatility is strong.

[0009] According to the interlocking mechanism, optionally, the transmission member is a plate-shaped body, which is attached to the side wall of cabinet body.In this way, the influence of the transmission member on other components can be avoided as much as possible, and the insulation safety distance is increased.

[0010] According to the interlocking mechanism as described above, optionally, the lock plate is fixed to the transmission member, and rotation of the lock plate can drive the transmission member to move, so that the transmission member drives the locking block to move between the first position and the second position.

[0011] According to the interlocking mechanism as described above, optionally, further comprising: a reset member connected to the lock plate, and the reset member can reset the lock plate from the blocking position to the avoiding position. The reset member can ensure the reliability of the lock plate.

[0012] According to the interlocking mechanism as described above, optionally, the rear door has a stop member, and when the rear door is closed, the stop member abuts against the lock plate to keep the lock plate in the blocking position, and when the rear door is opened, the lock plate can move from the blocking position to the avoiding position. The stop member is used to interlock the rear door and the lock plate, and this way is relatively simple to realize.

[0013] According to the interlocking mechanism as described above, optionally, the stop member has a hook-shaped portion, and the lock plate has an opening, and when the rear door is in the closed state, the hook-shaped portion protrudes towards the opening and has a preset distance from the opening. Such a structure can avoid violent opening of the rear door as much as possible.

[0014] According to the interlocking mechanism as described above, optionally, the locking block has a groove, a pin body is arranged on the operation spindle, and when the locking block is in the first position, the pin body is located outside the groove, and the locking block blocks the operation spindle by blocking the pin body. Such a structure is relatively simple and convenient to realize, and when the locking block is in the second position, the rotation of the operation spindle can drive the pin body to move in the groove, and when the ground switch is in the open position, the pin body is located in the groove, and the locking block can be blocked by the pin body to keep the lock plate in the blocking position by preventing the transmission member from moving.

[0015] According to the interlocking mechanism as described above, optionally, further comprising: a bracket for supporting the stop block, and the stop block can move in the bracket.

[0016] According to the interlocking mechanism as described above, optionally, further comprising a ground switch.

[0017] The utility model also provides a switch cabinet, comprising the interlocking mechanism for ground switch of any one above. BRIEF DESCRIPTION OF DRAWINGS

[0018] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, so that those skilled in the art can more clearly understand the above and other features and advantages of the utility model, and the drawings are as follows:

[0019] Figure 1 It is the structure schematic view of the ground switch and interlocking mechanism according to the utility model and the ground switch is in the open position.

[0020] Figure 2 Structure diagram of interlocking mechanism when the back door is opened.

[0021] Figure 3 Structure diagram of interlocking mechanism when the lock plate is in the avoiding position.

[0022] Figure 4 Structure diagram of interlocking mechanism when the lock block is in the first position.

[0023] Figure 5 Structure diagram of interlocking mechanism when the lock block is in the second position.

[0024] Figure 6 Structure diagram of interlocking mechanism when the lock block is in the second position.

[0025] Wherein, the reference signs are as follows:

[0026] 1 - ground switch

[0027] 11 - operation main shaft

[0028] 111 - pin body

[0029] 12 - execution main shaft

[0030] 13 - ground blade

[0031] 21 - side wall of cabinet body

[0032] 211 - hole

[0033] 22 - back door

[0034] 3 - lock plate

[0035] 31 - opening

[0036] 32 - first axis

[0037] 4 - lock block

[0038] 41 - groove

[0039] 5 - transmission member

[0040] 51 - long hole

[0041] 52 - fixing member

[0042] 6 - reset member

[0043] 7 - stop member

[0044] 71 - hook portion

[0045] 8 - bracket

[0046] 91 - fixing pin DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following examples further explain the utility model in detail. The nouns and pronouns about people in the patent application are not limited to specific gender.

[0048] The utility model provides a kind of interlocking mechanism for grounding switch, it is used for the interlocking between grounding switch 1 and cabinet door.The grounding switch 1 generally includes operating spindle 11, execution spindle 12 and grounding blade 13, grounding blade 13 is fixed on execution spindle 12, operating spindle 11 can trigger the rotation of execution spindle 12, to drive grounding blade 13 rotates between closing position and opening position, Figure 1 The structure schematic diagram of grounding blade is located in opening position is shown.The switch cabinet includes cabinet body 21 and cabinet door, cabinet body 21 is provided with cabinet door, grounding switch 1 is located in cabinet body 21, to guarantee the safety of staff, only when grounding switch 1 is in the state of closing, cabinet door can be opened;Grounding switch 1 is in the state of opening, cabinet door cannot be opened.The cabinet door here is generally rear door 22, under the condition that rear door 22 is opened, staff can overhaul, repair or replace the equipment in cabinet body 21.

[0049] As Figure 1 The structure schematic diagram of the interlocking mechanism for grounding switch according to the utility model is shown; Figure 2 The rear door opening condition is shown, grounding switch is in blocking position at this time, lock plate is in avoiding position;As Figure 3 The enlarged schematic diagram of A part structure in Figure 1 The structure schematic diagram that rear door contacts lock plate and lock plate is located in avoiding position in Figure 3 The enlarged schematic diagram of B part structure in Figure 4 The structure schematic diagram that rear door contacts lock plate and lock plate is located in avoiding position in Figure 1 The enlarged schematic diagram of A part in Figure 4 The structure schematic diagram that locking block 4 is located in first position is shown;The enlarged structure schematic diagram of A part in Figure 5 The condition that lock plate is located in blocking position and rear door cannot be opened is shown; The enlarged structure schematic diagram of B part in Figure 1 The condition that locking block 4 is located in second position is shown. Figure 5 Figure 6 The enlarged structure schematic diagram of B part in Figure 1 The condition that locking block 4 is located in second position is shown. Figure 6 The condition that locking block 4 is located in first position is shown.

[0050] The interlocking mechanism for grounding switch in the utility model includes lock plate 3, locking block 4 and transmission part 5.

[0051] The lock plate 3 can rotate between an avoiding position and a blocking position. When the lock plate 3 is in the avoiding position, the rear door 22 can be opened. When the lock plate 3 is in the blocking position, the lock plate 3 can block the rear door 22 from being opened.

[0052] The lock block 4 can move between a first position and a second position. When the lock block 4 is in the first position, the lock block 4 blocks the operation spindle 11 from rotating so that the grounding switch 1 is kept in the closed state. When the lock block 4 is in the second position, the operation spindle 11 can rotate, so that the grounding knife 13 can rotate between the closed position and the open position.

[0053] The transmission member 5 is connected between the lock plate 3 and the lock block 4. When the lock plate 3 is in the avoiding position, the lock block 4 is in the first position. When the lock plate 3 is in the blocking position, the lock block 4 is in the second position. As an exemplary illustration, the transmission member 5 can be a plate-shaped body which is attached to the side wall of the cabinet 21. In this way, the influence of the transmission member 5 on other components can be avoided as much as possible. In addition, the transmission plate structure can reduce the occupied space, increase the insulation safety distance, and is simple to manufacture, so that the cost of the interlocking mechanism is relatively low.

[0054] According to the interlocking mechanism for the grounding switch, by arranging the lock plate 3 and the lock block 4 in two parts, and connecting the two parts through the transmission member 5, the lock plate 3 can be close to the rear door 22, and the lock block 4 can be close to the grounding switch 1, thereby increasing the reliability of the interlocking. In addition, the interlocking mechanism can be suitable for various types of cabinet 21, and the structure of the grounding switch 1 itself does not need to be changed. The distance between the lock plate 3 and the lock block 4 can be adjusted by the length of the transmission member 5, so that the versatility is strong.

[0055] Optionally, the lock plate 3 is fixed to the transmission member 5, and the rotation of the lock plate 3 can drive the transmission member 5 to move, so that the transmission member 5 drives the lock block 4 to move between the first position and the second position. As shown in Figures 1 to 6 , the fixing pin 91 can be arranged through the lock plate 3 and the transmission member 5, so that the two are fixed together. The lock plate 3 can also be hinged to the side wall 21 of the cabinet, as shown in Figure 2 , Figure 3 and Figure 5 , the lock plate 3 can rotate along the first axis 32, so that the rotation of the lock plate 3 can drive the transmission member 5 to move, and then drive the lock block 4 to move. Such a structure is simple and easy to implement.

[0056] Optionally, the lock plate 3 has a reset member 6 connected to the lock plate 3, and the reset member 6 can reset the lock plate 3 from the blocking position to the avoiding position. The reset member 6 can be a spring, as shown in Figure 3 and Figure 5As shown, one end of the reset component 6 is fixed to the side wall 21 of the cabinet, and the other end is fixed to the lock plate 3. The use of the reset component 6 ensures the reliability of the lock plate 3.

[0057] Optionally, the rear door 22 has a stop 7. When the rear door 22 is closed, the stop 7 abuts against the lock plate 3 to keep the lock plate 3 in the blocking position. When the rear door 22 is open, the lock plate 3 can move from the blocking position to the yielding position. More specifically, the lock plate 3 can rotate from the blocking position to the yielding position under the action of the reset member 6 when no force is applied. Using the stop 7 to interlock the rear door 22 and the lock plate 3 is a relatively simple method to implement. The stop 7 protrudes from the door panel of the rear door 22, so that as the rear door 22 gradually closes, the protrusion of the stop 7 can push the lock plate 3 from the yielding position to the blocking position.

[0058] Optionally, the stop 7 has a hook-shaped portion 71, and the lock plate 3 has an opening 31. When the rear door 22 is closed, the hook-shaped portion 71 protrudes toward the opening 31 and is at a predetermined distance from the opening 31. Figure 5 As shown. Thus, when the rear door 22 is closed and the grounding switch 1 is in the open state, if someone accidentally tries to open the rear door 22, the stop 7 will enter the opening 31 as the rear door 22 opens, thus preventing the rear door 22 from being opened further. At this time, the rear door 22 is only slightly open and cannot accommodate personnel entering the cabinet 21. The cooperation between the hook-shaped part 71 and the opening 31 can minimize the risk of the rear door 22 being forcibly opened. The stop 7 can interlock with the lock plate 3 through the hole 211 in the cabinet 21.

[0059] Optionally, such as Figure 4 and Figure 6As shown, the locking block 4 has a groove 41, and the operating spindle 11 is provided with a pin 111, when the locking block 4 is in the second position, the rotation of the operating spindle 11 can drive the pin 111 to move in the groove 41, when the grounding switch 1 is in the open position, the pin 111 is in the groove 41, so as to block the movement of the transmission member 5, and the locking block 41 can be blocked by the pin 111 to prevent the movement of the transmission member 4, so as to keep the locking plate 3 in the blocking position; when the locking block 4 is in the first position, the pin 111 is out of the groove 41, and the locking block 4 blocks the rotation of the operating spindle 11 by blocking the pin 111. The pin 111 is perpendicular to the axis of the operating spindle 11, when the locking block 4 is in the second position, the locking block 4 can avoid the pin 111 through the groove 41, so that the operating spindle 11 can rotate freely, when the operating spindle is in the open position, the pin 111 is in the groove 41, so that the pin 111 can also prevent the movement of the transmission member 5, when the transmission member 5 cannot move, the locking plate 3 also cannot move, and the locking plate 3 remains in the blocking position, so that the rear door 22 cannot be opened; after the locking block 4 is in the first position, the locking block 4 can block the rotation of the operating spindle 11 by blocking the pin 111, so as to realize the interlocking between the rear door 22 and the grounding switch 1. Such structure is relatively simple and convenient to realize.

[0060] Optionally, the interlocking mechanism for the grounding switch further comprises a bracket 8, the bracket 8 is used for supporting the locking block 4, and the locking block 4 can move in the bracket 8. As shown, Figure 4 and Figure 6 As shown, the bracket 8 has a through hole, and the locking block 4 can move in the bracket 8 through the through hole. The through hole can also limit the movement direction of the locking block 4, so as to ensure the reliability of the locking block 4.

[0061] Optionally, the transmission member 5 is provided with a long hole 51, and the fixing member 52 is arranged in the long hole 51 and the side wall 21 of the cabinet body, and the cooperation can limit the movement direction of the transmission member 5, so as to ensure the reliability of the interlocking mechanism.

[0062] Optionally, the interlocking mechanism further comprises the grounding switch 1 as above.

[0063] The working process of the interlocking mechanism for the grounding switch will be described in detail below.

[0064] The grounding switch 1 is closed, at this time, the rear door 22 is in an open state, as shown, Figure 2 As shown, the stopper 7 on the rear door 22 is away from the locking plate 3, and the locking plate 3 has been rotated to the avoiding position under the action of the reset member 6. As shown, Figure 4As shown, at this time, the pin 111 on the operating spindle 11 of the grounding switch 1 is blocked by the locking block 4 in the first position, so that the operating spindle 11 cannot rotate, and the grounding switch 1 will always be in the closed state.

[0065] The staff has completed the inspection and is slowly closing the back door 22. Figure 3 The diagram shows the structure where the stop 7 of the rear door 22 just contacts the lock plate 3 and the lock plate 3 is still in the avoidance position. As the rear door 22 moves, the stop 7 will abut against the lock plate 3 and apply a pushing force to it, causing the lock plate 3 to rotate clockwise along the first axis 32, thereby causing the lock plate 3 to rotate from the avoidance position to the position shown. Figure 5 The indicated blocking position, at the same time, the rotation of the locking plate 3 will push the transmission component 5 along the path. Figure 3 The first arrow D1 moves in the direction of the transmission component 5, which in turn pushes the locking block 4 from... Figure 4 The first position shown is moved to Figure 6 The second position is shown, in which the rear door 22 is completely closed. (As shown) Figure 6 As shown, the groove 41 of the locking block 4 can form a clearance space, and the pin 111 of the operating spindle 11 can rotate in the groove 41, thereby allowing the grounding switch 1 to rotate to the open position. When the grounding switch 1 is rotated to the open position, the pin 111 is located in the locking block 4. In this way, the pin 111 can also prevent the transmission member 5 from moving along the second arrow D2, so that the locking plate 3 is kept in the blocking position, and can also apply resistance to the locking plate 3 to prevent the rear door 22 from being forcibly opened.

[0066] To reopen the back door 22, staff must first ensure that grounding switch 1 is in the closed position, i.e., restored to its original state. Figure 4 In the state shown by grounding switch 1, pin 111 is located outside groove 41. Next, the operator can open rear door 22. During the opening process, rear door 22 moves outward with stop 7, gradually disengaging from lock plate 3. During this process, lock plate 3, under the action of reset member 6, moves from... Figure 5 The indicated blocking position is rotated to Figure 3 The indicated clearance position causes the transmission component 5 to move, allowing the locking block 4 to move from... Figure 6 The second position shown is moved to Figure 4 In the first position shown, pin 111 is blocked by the stop block and cannot rotate, thus keeping the grounding switch 1 in the closed state. In this way, the operator can continue to fully open the rear door 22, as... Figure 2 As shown.

[0067] If staff attempt to force open the door during this process, it will be due to the lock plate 3 being located... Figure 5In the shown blocking position, the hook 71 of the stopper directly enters into the opening 31 of the lock plate 3 and is hooked by the lock plate 3, avoiding further opening of the back door 22.

[0068] The utility model also provides a switch cabinet, the switch cabinet includes the interlocking mechanism for the grounding switch of any preceding.

[0069] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An interlocking mechanism for a grounding switch (1), the grounding switch (1) comprising an operating spindle (11) and a grounding blade (13), rotation of the operating spindle (11) being capable of driving the grounding blade (13) to rotate between a closed position and an open position, the grounding switch (1) being arranged in a switch cabinet, the switch cabinet comprising a cabinet body and a rear door (22) arranged on the cabinet body, characterized in that, The interlocking mechanism comprises: a lock plate (3) capable of rotating between a retreat position and a blocking position, the rear door (22) being capable of being opened when the lock plate (3) is in the retreat position, the lock plate (3) being capable of blocking the rear door (22) from being opened when the lock plate (3) is in the blocking position; a locking block (4) capable of moving between a first position and a second position, the locking block (4) blocking the operation spindle (11) from rotating to keep the grounding switch (1) in the closed state when the locking block (4) is in the first position, the operation spindle (11) being capable of rotating when the locking block (4) is in the second position; a transmission member (5) connected between the lock plate (3) and the locking block (4), the locking block (4) being in the first position when the lock plate (3) is in the retreat position, the locking block (4) being in the second position when the lock plate (3) is in the blocking position.

2. The interlock mechanism of claim 1, wherein, The transmission member (5) is a plate-shaped body abutting against the side wall (21) of the cabinet.

3. The interlock mechanism of claim 1, wherein, The lock plate (3) is fixed to the transmission member (5), and the rotation of the lock plate (3) can drive the transmission member (5) to move, so that the transmission member (5) drives the locking block (4) to move between the first position and the second position.

4. The interlock mechanism of claim 1, wherein, Further comprising: a reset member (6) connected to the lock plate (3), the reset member (6) being capable of resetting the lock plate (3) from the blocking position to the retreat position.

5. The interlock mechanism of claim 1, wherein, The rear door (22) has a stop member (7), the stop member (7) abutting against the lock plate (3) to keep the lock plate (3) in the blocking position when the rear door (22) is closed, the lock plate (3) being capable of moving from the blocking position to the retreat position when the rear door (22) is opened.

6. The interlock mechanism of claim 5, wherein, The stop member (7) has a hook-shaped portion (71), the lock plate (3) has an opening (31), the hook-shaped portion (71) protruding towards the opening (31) and having a preset distance from the opening (31) when the rear door (22) is in the closed state.

7. The interlock mechanism of claim 1, wherein, The locking block (4) has a groove (41), the operation spindle (11) is provided with a pin (111), the pin (111) being located outside the groove (41) when the locking block (4) is in the first position, the locking block (4) blocking the operation spindle (11) from rotating by blocking the pin (111), the operation spindle (11) being capable of driving the pin (111) to move in the groove (41) when the locking block (4) is in the second position, the pin (111) being located in the groove (41) when the grounding switch (1) is in the open position, the locking block (4) being blocked by the pin (111) to keep the lock plate (3) in the blocking position by preventing the transmission member (5) from moving.

8. The interlock mechanism of claim 7, wherein, Further comprising: a bracket (8) for supporting the locking block (4), and the locking block (4) being capable of moving in the bracket (8).

9. The interlock mechanism of any one of claims 1-8, wherein, Further comprising the grounding switch (1).

10. Switchgear, characterized in that The interlocking mechanism for the grounding switch (1) according to any one of claims 1-9.

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