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CN-224217978-U - Propelling mechanism for draw-out type switch cabinet

CN224217978UCN 224217978 UCN224217978 UCN 224217978UCN-224217978-U

Abstract

The application discloses a pushing mechanism for a draw-out type switch cabinet, which belongs to the technical field of draw-out type switch cabinets and has the technical scheme that the pushing mechanism comprises a transmission screw arranged on a bottom plate of a drawer through a bracket, a groove-shaped positioning piece arranged on a cabinet body layer plate and a rocking handle, wherein a rotating shaft at one end of the transmission screw far away from the cabinet body layer plate is provided with a driven gear which is coaxial with the transmission screw and is used for driving the transmission screw to rotate, a secondary moving gear meshed with the driven gear is rotatably arranged on the bracket, one end of the secondary moving gear far away from the transmission screw is provided with a position indicating disk with three positions, the bracket is rotatably provided with a rotary positioning device which is meshed with the driven gear and is used for positioning at the three positions, the rotary positioning device is mutually matched with the rocking handle, and the bracket is provided with a warning device for warning the three-position connecting state.

Inventors

  • CHEN TINGXIANG
  • Fang Huina
  • CHEN JINSONG

Assignees

  • 开恩(厦门)电力科技有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (6)

  1. 1. The pushing mechanism for the draw-out type switch cabinet comprises a transmission screw (3) arranged on a bottom plate of a drawer (2) through a support (1), a groove-shaped positioning piece (5) arranged on a layer plate of a cabinet body (4) and a rocking handle (6), and is characterized in that a rotating shaft at one end of the layer plate of the cabinet body (4) is far away from the transmission screw (3), a driven gear (7) which is coaxial with the transmission screw and used for driving the transmission screw (3) to rotate is arranged, a secondary driving gear (8) meshed with the driven gear (7) is rotatably arranged on the support (1), a position indicating disc (9) with three positions is arranged at one end of the secondary driving gear (8) far away from the transmission screw (3), a rotary positioning device which is meshed with the driven gear (7) and used for positioning at three positions is rotatably arranged on the support (1), and the rotary positioning device is matched with the rocking handle (6), and a warning device used for warning the connection state at three positions is arranged on the support (1).
  2. 2. The pushing mechanism for the draw-out type switch cabinet according to claim 1, wherein the rotary positioning device comprises a rotary support rod (10) which is rotatably arranged on a bracket (1) and moves along the extending direction of the rotary support rod, a driving gear (11) which is coaxially arranged on the rotary support rod (10) and meshed with a driven gear (7), a rotary sleeve (12) which is coaxially arranged on one end of the rotary support rod (10) far away from a transmission screw (3) and matched with a rocking handle (6), a force application spring (13) which is sleeved on the rotary support rod (10) and always applies a force far away from the transmission screw (3) to the rotary support rod (10), a limiting block (14) which is arranged on one end of the rotary support rod (10) far away from the rotary sleeve (12), and a positioning block (15) which is arranged on one end face of the driving gear (11) towards the rotary sleeve (12), wherein three positioning holes (17) corresponding to three positions on a position indicating disc (9) are arranged on the limiting plate (16), the three positioning blocks (17) are axially extended to a certain length of the driving gear (7) and axially extend to a certain length (7), in the process of the driving gear (11) moving along the length direction, the driving gear (11) and the driven gear (7) are always in a meshed state.
  3. 3. The pushing mechanism for the draw-out type switch cabinet according to claim 2, wherein limit flanges (18) which are used for acting with the end faces of the driven gear (7) are arranged on the edges of the two end faces of the driving gear (11).
  4. 4. The pushing mechanism for the draw-out type switch cabinet according to claim 2, wherein the support (1) is provided with a limit sleeve (19) sleeved with the rotary support rod (10).
  5. 5. The pushing mechanism for the draw-out type switch cabinet according to claim 1, wherein the warning device comprises a main contact pin (20) and an auxiliary contact pin (21) which are arranged on the upper surface of a laminate of a cabinet body (4), a main trolley conductor rail (22) which is arranged on a bracket (1) and is positioned at the lower end of a bottom plate of a drawer (2) and is electrically connected and matched with the main contact pin (20), a first auxiliary trolley conductor rail (23) and a second auxiliary trolley conductor rail (24) which are arranged on the bracket (1) and are positioned at the lower end of the bottom plate of the drawer (2) and are electrically connected and matched with the auxiliary contact pin (21), a controller (25) and a battery (26) which are arranged at the upper end of the bottom plate of the drawer (2), and a warning lamp (27) which is arranged at one side of the bracket (1) far away from a transmission screw (3), wherein the main trolley conductor rail (22), the first auxiliary trolley conductor rail (23) and the second auxiliary trolley conductor rail (24) are mutually parallel and extend in the same direction as the bottom plate of the drawer (2), the first auxiliary trolley conductor rail (9) is positioned at the position of the second auxiliary trolley conductor rail (25) and is electrically connected with the corresponding to the battery (25), the main contact pin (20) is electrically connected with the auxiliary contact pin (21), when the main trolley conductor rail (22) is communicated with the main contact pin (20) and the second auxiliary trolley conductor rail (24) is communicated with the auxiliary contact pin (21), the drawer (2) is in a test position state, the warning lamp (27) emits green light, and when the main trolley conductor rail (22) is communicated with the main contact pin (20) and the first auxiliary trolley conductor rail (23) is communicated with the auxiliary contact pin (21), the drawer (2) is in a connection position state, and the warning lamp (27) emits red light.
  6. 6. The pushing mechanism for the draw-out type switch cabinet according to claim 5, wherein the opening end faces of the main trolley conductor rail (22), the first auxiliary trolley conductor rail (23) and the second auxiliary trolley conductor rail (24) are all rounded.

Description

Propelling mechanism for draw-out type switch cabinet Technical Field The application relates to the technical field of draw-out type switch cabinets, in particular to a propelling mechanism for a draw-out type switch cabinet. Background In the field of power distribution and control, the low-voltage transformer cabinet plays a vital role. The traditional drawer type low-voltage transformer cabinet is widely applied to various industrial places, commercial buildings, residential communities and the like, and provides guarantee for stable operation of a power system. However, the existing drawer type low-voltage transformer cabinet has some problems to be solved urgently. At present, the Chinese patent publication No. CN101217229A discloses a propelling mechanism for a drawer of a low-voltage draw-out type switch cabinet, which comprises a precession mechanism and a three-position locking mechanism, wherein the precession mechanism pushes the drawer to move in the cabinet body, when the drawer is sequentially pushed to each designated position, the three-position locking mechanism locks the precession mechanism to realize three electric connection states of separation, test and connection of the drawer and the cabinet body, the precession mechanism comprises a transmission screw installed on a bottom plate of the drawer through a bracket and a groove-shaped locating piece installed on a layer plate of the cabinet body and pushing the drawer to move back and forth in a matched manner with the transmission screw, and the linear movement of the drawer is effectively controlled through a spiral bulge of the transmission screw and a chute of the groove-shaped locating piece, so that the drawer is prevented from being skewed due to stress when the drawer is subjected to reverse withdrawal force, and mechanical movement dead points are generated. The three-position locking mechanism is arranged in the bracket and comprises a three-position positioning disk, an unlocking rod and a transmission gear set which enables the three-position positioning disk to be in linkage with the transmission screw, wherein the unlocking rod is provided with an unlocking groove, the three-position positioning disk is provided with a positioning groove, the unlocking rod is provided with a reset spring which enables the unlocking rod to reset, when the drawer needs to be pushed in, the three-position positioning disk can be embedded into the unlocking groove of the unlocking rod through moving the unlocking rod, the three-position positioning disk is unlocked, and when the drawer is pushed to a designated position, the unlocking rod is reset under the action of the reset spring and is clamped into the positioning groove of the three-position positioning disk to lock the three-position positioning disk. In the prior art, the pushing mechanism is complex in structure, an operator is required to press the unlocking rod by one hand and rotate the rocking handle by the other hand to unlock the pushing mechanism, when the unlocking groove for pressing the unlocking rod is not aligned with the positioning groove, the three-position positioning disc is not rotatable, the unlocking rod is required to be pressed by one hand and then the other hand is required to rotate by rotating the rotating sleeve every time, the operation is inconvenient, the pull-out type switch cabinet does not have a drawer position warning function of a separation position state, a test position state and a connection position state, and the damage to equipment can be caused easily when the joint on the drawer and the joint on the pull-out type switch cabinet are in a virtual lap state and the position indication disc on the drawer is displayed as a connection state. In view of this, the present inventors devised a push mechanism for a draw-out type switchgear which is convenient to operate and has a warning function. Disclosure of utility model Aiming at the defects of the prior art, the utility model aims to provide the pushing mechanism for the draw-out type switch cabinet, which has the advantages that an operator can operate the pushing mechanism by one hand and respectively warn the drawer in a three-state of a separation position state, a test position state and a connection position state, so that equipment damage caused by the fact that the drawer and the draw-out type switch cabinet are in a virtual load is avoided, and the effects of simplicity and convenience in operation and safety warning are achieved. The pushing mechanism for the draw-out type switch cabinet comprises a transmission screw arranged on a drawer bottom plate through a support, a groove-shaped positioning piece arranged on a cabinet body layer plate and a rocking handle, wherein a rotating shaft at one end of the transmission screw far away from the cabinet body layer plate is provided with a driven gear which is coaxial with the transmission screw and is used for driving the transmission scre