CN210517568U - Longitudinal driving mechanism for drawer of switch cabinet - Google Patents
Longitudinal driving mechanism for drawer of switch cabinet Download PDFInfo
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- CN210517568U CN210517568U CN201921619501.2U CN201921619501U CN210517568U CN 210517568 U CN210517568 U CN 210517568U CN 201921619501 U CN201921619501 U CN 201921619501U CN 210517568 U CN210517568 U CN 210517568U
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- drawer
- outer cylinder
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Abstract
A longitudinal driving mechanism for a drawer of a switch cabinet comprises a loop compartment, wherein the drawer is arranged in the loop compartment in a longitudinally movable manner, a horizontal compartment plate is arranged at the bottom of the loop compartment, a longitudinally extending rack is fixedly arranged on the horizontal compartment plate, the drawer is provided with a first gear and a second gear, the first gear is meshed with the rack, the first gear and the second gear are coaxially and fixedly connected through a transmission shaft, and a tooth socket of the second gear is square; the handle is also arranged and comprises a handle outer cylinder and a handle inner core; a return spring is arranged in the handle outer cylinder, and the first end part of the handle inner core is wedge-shaped and contacts with the edge of the second gear; the second end part of the handle inner core is far away from the second gear, and the eccentric position of the inner core cap is fixedly connected with a positioning short pin; two guide blind holes are formed in the end part of the handle outer cylinder, and the positioning short pin of the handle inner core is inserted into one of the guide blind holes. The utility model discloses can not take place the condition that can not find the handle in the time of emergency.
Description
Technical Field
The utility model belongs to the technical field of electrical switchgear, especially, relate to a cubical switchboard drawer longitudinal drive mechanism.
Background
The circuit on the low-voltage switch cabinet is designed into a drawer type, each circuit comprises a corresponding circuit compartment, a drawer can be longitudinally movably arranged in each circuit compartment, an electrical component is arranged in each drawer, after the drawer enters the circuit compartment, the primary connector and the secondary connector are electrically connected with a socket of the circuit compartment, so that a separation position, a test position and a connection position are sequentially formed in the longitudinal movement track of the drawer, and the functional position of the drawer is frequently required to be longitudinally changed in the using process.
The existing longitudinal drive mechanism for the drawer of the switch cabinet generally utilizes a screw mechanism to drive a drawer module to move longitudinally, so that the drawer can be pushed or withdrawn longitudinally. The screw rod is matched with an operating crank, and the operating crank drives the screw rod to rotate during operation, so that the rotary motion of the operating crank is converted into the linear motion of the screw rod mechanism.
However, in the above structure, since the crank is exposed out of the front of the drawer front panel for a long length, the front end of the operating crank and the rear end of the screw rod need to be designed into a movable sleeve-insertion matching relationship, and when the drawer needs to be pushed, the crank and the rear end of the screw rod are inserted together; after the operation is finished, the operator pulls the crank away from the rear end section of the screw rod. However, the conventional longitudinal driving mechanism for the drawer of the switch cabinet often cannot find the crank when needing to be operated on the operation site; more typically, in an emergency situation where the downstream load needs to be powered off urgently and the drawer is taken out of the cabinet, a person may not find the crank to complete the operation before reaching the switch cabinet, and thus certain potential safety hazards may exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a longitudinal driving mechanism for a drawer of a switch cabinet, which can not find a handle in emergency.
The purpose can be realized according to the following scheme: a longitudinal driving mechanism of a switch cabinet drawer comprises a loop compartment, wherein the drawer is longitudinally movably arranged in the loop compartment and comprises a drawer bottom plate and a drawer front panel, an electric component is arranged in the drawer, and a horizontal compartment plate is arranged at the bottom of the loop compartment; the handle is also arranged and comprises a handle outer cylinder and a handle inner core;
the handle outer cylinder is rotatably arranged on a rotating shaft of the second gear in a relative rotating way, and the length direction of the handle outer cylinder is vertical to the rotating shaft of the second gear; the front panel of the drawer is provided with a handle hole, the swinging end of the handle outer cylinder is exposed out of the handle hole of the front panel of the drawer, the handle outer cylinder is sleeved outside the handle inner core in a loose fit manner, a return spring is arranged in the handle outer cylinder, the return spring applies pressure to the handle inner core, the direction of the pressure points to a rotating shaft of the second gear, the first end part of the handle inner core is close to the second gear, and the first end part of the handle inner core is wedge-shaped and contacts with the edge of the second gear; the second end of the handle inner core is far away from the second gear, the second end of the handle inner core is fixedly connected with a circular inner core cap, the diameter of the inner core cap is larger than the inner diameter of the handle outer cylinder, the eccentric position of the inner core cap is fixedly connected with a positioning short pin, and the axial direction of the positioning short pin is parallel to the axial direction of the handle inner core;
two guide blind holes are formed in the end portion of the handle outer barrel, the center lines of the two guide blind holes are parallel to the central axis of the handle outer barrel, the two guide blind holes are symmetrical with respect to the central axis of the handle outer barrel, and the positioning short pin of the handle inner core is inserted into one of the guide blind holes.
The utility model has the advantages of it is following and effect:
firstly, the handle outer cylinder is rotatably mounted on the rotating shaft of the second gear, so that the handle outer cylinder and the rotating shaft of the second gear can rotate relatively, namely, the rotation of the handle outer cylinder does not directly and necessarily cause the rotating shaft of the second gear to rotate. The handle inner core is loosely sleeved in the handle outer cylinder, the wedge-shaped end part of the handle inner core is contacted with the edge of the second gear, and when the handle rotates, the handle inner core can drive the second gear to rotate only when the handle rotates towards the direction opposite to the direction of the wedge-shaped surface; when the handle rotates towards the direction of the wedge-shaped surface, the wedge-shaped surface converts the second gear resistance force received by the end part of the handle inner core into a force along the radial direction of the second gear, and the spring is compressed, so that the handle inner core moves outwards (relative to the handle outer cylinder) along the radial direction of the second gear, and the second gear cannot rotate, and the mechanism actually forms a ratchet mechanism for transmitting torque in a single direction; furthermore, because the positioning short pin of the handle inner core is transferred from one guide blind hole to the other guide blind hole, the orientation of the wedge-shaped surface can be adjusted by 180 degrees, so that the direction of the torque transmitted by the ratchet mechanism can be changed by 180 degrees.
Due to the properties, when the drawer needs to be withdrawn, the handle can be repeatedly swung back and forth to enable the second gear to rotate forwards, the first gear rotates forwards, and then the first gear moves forwards relative to the rack to drive the drawer to move forwards; on the contrary, when the drawer needs to be pushed forward, the positioning short pin of the handle inner core can be transferred to the other guiding blind hole from one guiding blind hole, namely the handle inner core can change 180 degrees relative to the relative direction of the handle outer cylinder, the handle is repeatedly swung, the second gear is reversely rotated to drive the first gear to reversely rotate, and then the first gear moves backwards relative to the rack to drive the drawer to move backwards. Therefore, the utility model discloses can realize vertically advancing the drawer or withdraw from.
Secondly, the handle can be linked on the drawer in a vertically swinging way, so that the situation that the handle cannot be found in emergency can not happen. When the handle is not needed, the handle can be pulled to an inclined state, so that the tail end of the handle is not exposed out of the front panel of the drawer basically.
Drawings
Fig. 1 is a schematic side view of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a in fig. 1.
Fig. 3 is a schematic front view of the structure shown in fig. 1.
Fig. 4 is a schematic bottom view of the drawer of fig. 3.
Fig. 5 is an enlarged schematic view of a part B of fig. 4.
Fig. 6 is a perspective view of an assembled structure of the first gear, the second gear and the handle.
Fig. 7 is a schematic front view of the structure shown in fig. 6.
Fig. 8 is a schematic cross-sectional view of the structure of fig. 7 in one state of use.
Fig. 9 is a schematic cross-sectional view of another state of use of the structure shown in fig. 7.
Fig. 10 is an enlarged view of a part C of fig. 8.
Fig. 11 is an enlarged view of a portion D of fig. 9.
Fig. 12 is an exploded view of the structure shown in fig. 9.
Fig. 13 is an enlarged view of a lower half of the structure shown in fig. 8.
Fig. 14 is an enlarged view of a lower half of the structure shown in fig. 9.
Detailed Description
The switch cabinet drawer longitudinal driving mechanism shown in fig. 1, 2, 3, 4 and 5 comprises a loop compartment, a drawer 1 is installed in the loop compartment in a longitudinally movable manner, the drawer 1 comprises a drawer bottom plate 11 and a drawer front plate 12, an electrical component is installed in the drawer 1, a horizontal compartment plate 2 is arranged at the bottom of the loop compartment, a longitudinally extending rack 3 is fixedly installed on the horizontal compartment plate 2, a first gear 41 and a second gear 42 are installed on the drawer 1, the lower edge of the first gear 41 is exposed below the drawer bottom plate 11, the first gear 41 is meshed with the rack 3, the first gear and the second gear 41 are coaxially and fixedly connected through a transmission shaft 43, and the tooth space of the second gear 42 is square; the handle 5 is also arranged, and the handle 5 comprises two parts, namely a handle outer cylinder 51 and a handle inner core 52;
as shown in fig. 4, 5, 6, 7, 8, 13 and 14, the handle outer cylinder 51 is relatively rotatably mounted on the rotating shaft of the second gear 42, i.e. when the rotating shaft of the second gear 42 is fixed and does not rotate, the handle outer cylinder 51 can rotate around the rotating shaft of the second gear 42; the length direction of the handle outer cylinder 51 is vertical to the rotating shaft of the second gear 42; the drawer front panel 12 is provided with a handle hole 10, the swinging end of the handle outer cylinder 51 is exposed out of the handle hole 10 of the drawer front panel, the handle outer cylinder 51 is loosely sleeved outside the handle inner core 52, a return spring 53 is arranged inside the handle outer cylinder 51, the return spring 53 applies pressure to the handle inner core 52, the direction of the pressure is directed to the rotating shaft of the second gear 42, the first end 521 of the handle inner core 52 is close to the second gear 42, and the first end 521 of the handle inner core 52 is wedge-shaped and contacts the edge of the second gear 42; the second end 522 of the handle inner core 52 is far away from the second gear 42, the second end 522 of the handle inner core is fixedly connected with a circular inner core cap 6, the diameter of the inner core cap 6 is larger than the inner diameter of the handle outer cylinder 51, the eccentric position of the inner core cap 6 is fixedly connected with a positioning short pin 7, and the axial direction of the positioning short pin 7 is parallel to the axial direction of the handle inner core 52;
as shown in fig. 9, 10 and 11, two blind guide holes 8 are formed at the end of the handle outer cylinder 51, the center lines of the two blind guide holes 8 are parallel to the central axis of the handle outer cylinder 51, the two blind guide holes 8 are symmetrical with respect to the central axis of the handle outer cylinder 51, and the positioning short pin 7 of the handle inner core 52 is inserted into one of the blind guide holes 8.
The working principle of the above embodiment is as follows:
when the drawer needs to be withdrawn, the positioning short pin of the handle inner core can be inserted into the first guide blind hole 8, as shown in fig. 8, 10 and 13, and then the handle is repeatedly swung, in this state, when the handle rotates towards the direction shown by the arrow a in fig. 13, the second gear is driven to rotate (clockwise rotation), and the second gear drives the first gear to rotate (clockwise rotation); when the handle is rotated in the direction opposite to the direction indicated by the arrow a in fig. 13, the wedge-shaped surface of the first end 521 of the handle inner core 52 converts the second gear resistance force applied to the end of the handle inner core into a force in the radial direction of the second gear, and the return spring 53 is compressed, so that the handle inner core 52 moves outwards (relative to the handle outer cylinder) in the radial direction of the second gear 42, and the second gear does not rotate; in a word, in the process of repeatedly swinging the handle, the second gear 42 rotates forward (rotates clockwise), the first gear 41 rotates forward, and then the first gear 41 moves forward relative to the rack to drive the drawer to move forward;
on the contrary, when the drawer needs to be pushed forward, the positioning short pin 7 of the handle inner core can be transferred from one of the blind guide holes 8 to the other blind guide hole, as shown in fig. 9, 11 and 14, in this state, the handle 5 is repeatedly swung, only when the handle rotates towards the direction shown by the arrow b in fig. 14, the second gear 42 is reversed (anticlockwise rotated), the first gear 41 is driven to be reversed (anticlockwise rotated), and then the first gear 41 moves backwards relative to the rack 3, and the drawer 1 is driven to move backwards; when the handle is rotated in the direction opposite to the direction indicated by the arrow b in fig. 14, the second gear 42 does not rotate and the drawer 1 does not move. In a word, in the process of repeatedly swinging the handle, the second gear 42 rotates reversely (rotates counterclockwise), the first gear 41 rotates reversely, and then the first gear 41 moves backwards relative to the rack, so as to drive the drawer to move backwards;
thus, the above-described embodiment enables the drawer 1 to be longitudinally advanced or withdrawn.
Claims (1)
1. A longitudinal driving mechanism of a switch cabinet drawer comprises a loop compartment, wherein the loop compartment is internally and longitudinally movably provided with the drawer, the drawer comprises a drawer bottom plate and a drawer front panel, an electric component is arranged in the drawer, and the bottom of the loop compartment is provided with a horizontal compartment plate; the handle is also arranged and comprises a handle outer cylinder and a handle inner core;
the handle outer cylinder is arranged on a rotating shaft of the second gear in a relatively rotating manner, and the length direction of the handle outer cylinder is vertical to the rotating shaft of the second gear; the front panel of the drawer is provided with a handle hole, the swinging end of the handle outer cylinder is exposed out of the handle hole of the front panel of the drawer, the handle outer cylinder is sleeved outside the handle inner core in a loose fit manner, a return spring is arranged in the handle outer cylinder, the return spring applies pressure to the handle inner core, the direction of the pressure points to a rotating shaft of the second gear, the first end part of the handle inner core is close to the second gear, and the first end part of the handle inner core is wedge-shaped and contacts with the edge of the second gear; the second end of the handle inner core is far away from the second gear, the second end of the handle inner core is fixedly connected with a circular inner core cap, the diameter of the inner core cap is larger than the inner diameter of the handle outer cylinder, the eccentric position of the inner core cap is fixedly connected with a positioning short pin, and the axial direction of the positioning short pin is parallel to the axial direction of the handle inner core; two guide blind holes are formed in the end portion of the handle outer barrel, the center lines of the two guide blind holes are parallel to the central axis of the handle outer barrel, the two guide blind holes are symmetrical with respect to the central axis of the handle outer barrel, and the positioning short pin of the handle inner core is inserted into one of the guide blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921619501.2U CN210517568U (en) | 2019-09-26 | 2019-09-26 | Longitudinal driving mechanism for drawer of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921619501.2U CN210517568U (en) | 2019-09-26 | 2019-09-26 | Longitudinal driving mechanism for drawer of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210517568U true CN210517568U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921619501.2U Active CN210517568U (en) | 2019-09-26 | 2019-09-26 | Longitudinal driving mechanism for drawer of switch cabinet |
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| Country | Link |
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| CN (1) | CN210517568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123006A (en) * | 2022-01-25 | 2022-03-01 | 山东万海电气科技有限公司 | Drawer type low-voltage switch cabinet with locking mechanism |
-
2019
- 2019-09-26 CN CN201921619501.2U patent/CN210517568U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123006A (en) * | 2022-01-25 | 2022-03-01 | 山东万海电气科技有限公司 | Drawer type low-voltage switch cabinet with locking mechanism |
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