Power distribution tool propelling mechanism and power distribution switch cabinet

Abstract

The utility model discloses a power distribution tool propulsion mechanism and a power distribution switch cabinet. The power distribution tool propulsion mechanism comprises a rack, a moving seat arranged on the rack, and a driving mechanism arranged on the rack. The driving mechanism is used for driving the moving seat to move; the driving mechanism comprises a driver, a gear set and a screw rod, and the driver, the gear set and the screw rod are all arranged on the rack; the gear set comprises a first gear and a second gear, the second gear is connected with the output end of the driver, and a plurality of transition gears are arranged between the first gear and the second gear; by setting the reduction ratio, the first gear has rotation resistance, and therefore the one-way transmission function is achieved: in the electric mode, the driver drives the second gear to rotate through the gear set, and then the movable base is driven to move; in the manual mode, when the lead screw is directly rotated, rotation resistance prevents the first gear from rotating reversely, so that the first gear can move along threads of the lead screw to drive the movable seat to move, and therefore the technical effect that even if the driver is damaged, reliable work can still be achieved in the manual mode is achieved.

Description

Technical Field

[0001] This utility model relates to power distribution equipment, specifically a power distribution tool propulsion mechanism and a power distribution switch cabinet. Background Technology

[0002] Currently, the driving methods for propulsion mechanisms in power distribution tools mainly include manual and automatic drive. In existing technology, manual and automatic drive are typically connected and switched using a clutch. When the clutch is engaged, the motor drives the moving seat; when the clutch is disengaged, the moving seat is driven manually. However, clutches are complex in structure and have reliability issues: when the clutch fails, neither manual nor electric drive may work, rendering the moving seat immobile and affecting normal use. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a power distribution tool propulsion mechanism and power distribution switch cabinet to solve the problem that the moving seat cannot move when the clutch malfunctions.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a power distribution tool propulsion mechanism, including a frame, a movable seat mounted on the frame, and a drive mechanism mounted on the frame; the drive mechanism is used to drive the movable seat to move; the drive mechanism includes a driver, a gear set, and a lead screw, all of which are mounted on the frame;

[0005] The gear set includes a first gear and a second gear. The first gear is threaded onto a lead screw, and the second gear is connected to the output end of the driver. Several transition gears are provided between the first gear and the second gear.

[0006] There is a reduction ratio between adjacent gears in the gear set, and the gear set achieves speed reduction transmission through the reduction ratio;

[0007] The driving force of the driver is reduced by the reduction ratio between the gear sets and then drives the first gear on the lead screw to rotate.

[0008] Furthermore, the first gear sleeved on the lead screw generates rotational resistance through a reduction ratio, and the moving seat moves along the lead screw by manually driving the lead screw to rotate.

[0009] As a further improvement of this utility model, the movable seat is provided with a through hole, and the frame is provided with a guide rod, which passes through the through hole;

[0010] The guide rod is used to limit the rotation of the movable seat, so that the movable seat can only move in a straight line along the extension direction of the lead screw.

[0011] As a further improvement of this utility model, a slot is provided at the bottom of the frame corresponding to the position of the lead screw;

[0012] The slot is used to insert a drive plug to drive the lead screw to rotate; the drive plug is detachably disposed in the slot.

[0013] It also includes a power distribution switch cabinet, comprising a cabinet body, a locking mechanism and a drive unit both disposed within the cabinet body, wherein the drive unit includes a power distribution tool propulsion mechanism as described in any of the above.

[0014] As a further improvement of this utility model, the locking mechanism includes a base mounted on the frame, a connecting rod movably connected to the base, and a pin plate connected to the connecting rod.

[0015] A tension spring is provided on the frame, and the tension spring is connected to the pin plate. The tension spring applies a pulling force to the pin plate in the locking direction and drives the connecting rod to move.

[0016] When the drive unit is in the first position, the movable seat cooperates with the connecting rod and restricts the movement of the locking mechanism. At this time, the locking mechanism is in the unlocked state.

[0017] When the drive unit is in the second position, the moving seat moves along the lead screw and disengages from the connecting rod, at which point the locking mechanism is in the locked state.

[0018] As a further improvement of this utility model, the base is provided with a guide groove; the guide groove is adapted to the connecting rod, and the connecting rod moves along the extension direction of the guide groove.

[0019] As a further improvement of this utility model, the locking mechanism further includes a limiting piece, which is movably connected to the base, and the connecting rod abuts against the movable seat through the limiting piece.

[0020] The beneficial effect of this utility model is that by setting a reduction ratio, the first gear has rotational resistance, thereby realizing the unidirectional transmission function: in electric mode, the driver drives the second gear to rotate through the gear set, which in turn drives the moving seat to move; in manual mode, when the lead screw is rotated directly, the rotational resistance prevents the first gear from reversing, so that the first gear can move along the lead screw thread and drive the moving seat to move. This achieves the technical effect that even if the driver is damaged, the manual mode can still work reliably. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first position in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the second position in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the drive mechanism in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the unlocking state of the locking mechanism in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the locking mechanism in the locking state according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the slot in an embodiment of the present invention.

[0027] Reference numerals: 1. Frame; 2. Movable base; 3. Driver; 4. Lead screw; 5. First gear; 6. Second gear; 7. Transition gear; 8. Guide rod; 9. Slot; 10. Base; 11. Connecting rod; 12. Pin; 13. Tension spring; 14. Guide groove; 15. Limiting plate. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0029] Reference Figure 1-6 As shown, a power distribution tool propulsion mechanism includes a frame 1, a movable seat 2 mounted on the frame 1, and a drive mechanism mounted on the frame 1; the drive mechanism is used to drive the movable seat 2 to move; the drive mechanism includes a driver 3, a gear set, and a lead screw 4, all of which are mounted on the frame 1.

[0030] The gear set includes a first gear 5 and a second gear 6. The first gear 5 is threaded onto the lead screw 4, and the second gear 6 is connected to the output end of the driver 3. Several transition gears 7 are provided between the first gear 5 and the second gear 6.

[0031] There is a reduction ratio between adjacent gears in a gear set, and the gear set achieves speed reduction transmission through the reduction ratio;

[0032] The driving force of the driver 3 is reduced by the reduction ratio between the gear sets and then drives the first gear 5 on the lead screw 4 to rotate.

[0033] Furthermore, the first gear 5 sleeved on the lead screw 4 forms rotational resistance through the reduction ratio, and the moving seat 2 moves along the lead screw 4 by manually driving the lead screw 4 to rotate.

[0034] In this embodiment, a gear set including a first gear 5 and a second gear 6 is provided, with several transition gears 7 between the first gear 5 and the second gear 6. The reduction ratio between adjacent gears is used to achieve speed reduction transmission. Compared with the clutch-driven method in the prior art, when the driver 3 is driven, the driving force is reduced by the reduction ratio to drive the first gear 5 to rotate, achieving electric propulsion. In manual mode, when the lead screw 4 is directly rotated, the first gear 5 forms rotational resistance through the reduction ratio, preventing the gear set from reversing. This allows the first gear 5 to move along the thread of the lead screw 4, driving the moving seat 2 to move. This achieves the technical effect that even if the driver 3 is damaged, the manual mode can still work reliably, avoiding the problem of the switch cabinet being unable to open after clutch wear or damage.

[0035] Preferably, the movable seat 2 is provided with a through hole, and the frame 1 is provided with a guide rod 8, which passes through the through hole; the guide rod 8 is used to restrict the rotation of the movable seat 2, so that the movable seat 2 can only move linearly along the extension direction of the lead screw.

[0036] In this embodiment, the guide rod 8 is used to restrict the rotation of the movable seat 2, so that the movable seat 2 can only move in a straight line along the extension direction of the lead screw; in the electric drive mode, the guide rod 8 can prevent the movable seat 2 from deflecting during the propulsion process; when the lead screw 4 is manually rotated, if there is no guide rod 8 to restrict it, the movable seat 2 will rotate accordingly and will not be able to achieve the propulsion function.

[0037] Furthermore, refer to Figure 6 A slot 9 is provided at the bottom of the frame 1 corresponding to the position of the lead screw 4; the slot 9 is used to insert a drive plug to drive the lead screw to rotate; the drive plug is detachably installed in the slot 9.

[0038] In this embodiment, a slot 9 is provided at the bottom of the frame 1 corresponding to the lead screw 4. The slot 9 is used to insert a drive plug to drive the lead screw to rotate. The drive plug is detachably disposed in the slot 9. Thus, when the driver 3 fails, the user can manually rotate the lead screw by inserting the drive plug. The operation is simple, and the drive plug is detachable and replaceable, making it widely applicable.

[0039] Preferably, a power distribution switch cabinet includes a cabinet body, a locking mechanism and a drive unit both disposed within the cabinet body, and the drive unit includes a power distribution tool propulsion mechanism as described in any of the above.

[0040] In this embodiment, the automatic pushing, locking and unlocking functions of the switch cabinet are integrated into one unit through the cooperation of the drive unit and the locking mechanism. The structure is compact and the operation is simple and reliable.

[0041] Preferably, the locking mechanism includes a base 10 disposed on the frame 1, a connecting rod 11 movably connected to the base 10, and a pin 12 connected to the connecting rod 11;

[0042] A tension spring 13 is provided on the frame 1. The tension spring 13 is connected to the pin plate 12. The tension spring 13 applies a pulling force to the pin plate 12 in the direction of locking and drives the connecting rod 11 to move.

[0043] Reference Figure 4 When the drive unit is in the first position, the movable seat 2 cooperates with the connecting rod 11 and restricts the movement of the locking mechanism. At this time, the locking mechanism is in the unlocked state.

[0044] Reference Figure 5 When the drive unit is in the second position, the movable seat 2 moves along the lead screw and disengages from the engagement state with the connecting rod 11, at which time the locking mechanism is in the locked state.

[0045] In this embodiment, a locking mechanism comprising a base 10, a connecting rod 11, a pin 12, and a tension spring 13 is used. The tension spring 13 applies a pulling force to the pin 12 in the locking direction, causing the connecting rod 11 to move. This, combined with the positional change of the drive unit, achieves automatic locking and unlocking. When the drive unit is in the first position, the movable seat 2 engages with the connecting rod 11, restricting the movement of the locking mechanism. At this time, the locking mechanism is in the unlocked state, and the switch cabinet can be opened and closed freely. When the drive unit moves to the second position, the movable seat 2 disengages from the connecting rod 11, and the tension spring 13 pulls the connecting rod 11 and the pin 12, causing the locking mechanism to be in the locked state, thus locking the cabinet. This solution utilizes elastic elements and mechanical cooperation to achieve automatic locking, requiring no manual intervention, providing rapid response, and ensuring safety and reliability.

[0046] Preferably, the base 10 is provided with a guide groove 14, which is adapted to the connecting rod 11, and the connecting rod 11 moves along the extension direction of the guide groove 14.

[0047] In this embodiment, by providing a guide groove 14 on the base 10 that is compatible with the connecting rod 11, the connecting rod 11 moves along the extension direction of the guide groove 14, thereby limiting the movement trajectory of the connecting rod 11 and improving the consistency and stability of the locking mechanism's action.

[0048] Furthermore, the locking mechanism also includes a limiting piece 15, which is movably connected to the base 10, and the connecting rod 11 abuts against the movable seat 2 through the limiting piece 15.

[0049] In this embodiment, by setting a limiting piece 15 on the base 10 and movably connecting the limiting piece 15 to the base 10, the connecting rod 11 abuts against the movable seat 2 through the limiting piece 15, thus avoiding direct contact between the connecting rod 11 and the movable seat 2; when the movable seat 2 abuts against the connecting rod 11, the limiting piece 15 first contacts and limits the connecting rod 11, keeping the locking mechanism in a stable state; after the movable seat 2 disengages, the limiting piece 15 releases its restriction on the connecting rod 11; this structure further improves the smoothness and reliability of the locking mechanism's operation.

[0050] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A power distribution tool propulsion mechanism, comprising a frame, a movable seat mounted on the frame, and a drive mechanism mounted on the frame; the drive mechanism is used to drive the movable seat to move; the drive mechanism includes a driver, a gear set, and a lead screw, wherein the driver, gear set, and lead screw are all mounted on the frame; Its features are, The gear set includes a first gear and a second gear. The first gear is threaded onto a lead screw, and the second gear is connected to the output end of the driver. Several transition gears are provided between the first gear and the second gear. There is a reduction ratio between adjacent gears in the gear set, and the gear set achieves speed reduction transmission through the reduction ratio; The driving force of the driver is reduced by the reduction ratio between the gear sets and then drives the first gear on the lead screw to rotate. Furthermore, the first gear sleeved on the lead screw generates rotational resistance through a reduction ratio, and the moving seat moves along the lead screw by manually driving the lead screw to rotate.

2. The power distribution tool propulsion mechanism according to claim 1, characterized in that, The movable base is provided with a through hole, and the frame is provided with a guide rod, which passes through the through hole; The guide rod is used to limit the rotation of the movable seat, so that the movable seat can only move in a straight line along the extension direction of the lead screw.

3. The power distribution tool propulsion mechanism according to claim 1, characterized in that, The bottom of the frame is provided with a slot corresponding to the position of the lead screw; The slot is used to insert a drive plug to drive the lead screw to rotate; the drive plug is detachably disposed in the slot.

4. A power distribution switchgear, characterized in that, It includes a cabinet, a locking mechanism and a drive unit, both of which are installed inside the cabinet. The drive unit includes the power distribution tool propulsion mechanism as described in any one of claims 1-3.

5. The power distribution switchgear according to claim 4, characterized in that, The locking mechanism includes a base mounted on the frame, a connecting rod movably connected to the base, and a pin connected to the connecting rod; A tension spring is provided on the frame, and the tension spring is connected to the pin plate. The tension spring applies a pulling force to the pin plate in the locking direction and drives the connecting rod to move. When the drive unit is in the first position, the movable seat cooperates with the connecting rod and restricts the movement of the locking mechanism. At this time, the locking mechanism is in the unlocked state. When the drive unit is in the second position, the moving seat moves along the lead screw and disengages from the connecting rod, at which point the locking mechanism is in the locked state.

6. The power distribution switchgear according to claim 5, characterized in that, The base is provided with a guide groove. The guide groove is adapted to the connecting rod, and the connecting rod moves along the extension direction of the guide groove.

7. The power distribution switchgear according to claim 5, characterized in that, The locking mechanism also includes a limiting piece, which is movably connected to the base, and the connecting rod abuts against the movable seat through the limiting piece.

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