CN-122000807-A - Intelligent power switch cabinet

CN122000807ACN 122000807 ACN122000807 ACN 122000807ACN-122000807-A

Abstract

The invention belongs to the technical field of switch cabinets, and discloses an intelligent power switch cabinet which comprises a switch cabinet body, a support, a breaker, a hand-pushing force storage mechanism and a locking mechanism, wherein the bottom of the breaker is a supporting plate and is slidably arranged on the support, the hand-pushing force storage mechanism is arranged on the support, the locking mechanism is used for locking the supporting plate in an initial state, and two protruding blocks are arranged at the bottom of the supporting plate. According to the scheme, the main sliding block is pushed to move through the rotary screw rod, one of the auxiliary sliding blocks is driven to move through the movement of the main sliding block, the tensile force of the tensile force piece is accumulated, after the tensile force piece reaches the preset position, the locking of the supporting plate is released through the locking mechanism, the supporting plate and the circuit breaker above the supporting plate can be rapidly pulled to move under the action of the elastic force of the tensile force piece, and finally the circuit breaker is rapidly moved from the test position to the working position, so that the problem that arc discharge can be caused when a moving contact and a moving contact are in the approaching stage due to the fact that the manual rotary screw rod drives the handcart to move slowly is solved.

Inventors

CHEN DEJU
LI FENG
YANG BAOFENG
HAN YONGBIN
YANG LINTAO
ZHANG YING
WANG KAIHUAI
YAN XIAOWEI
GUAN LEI
ZHAO LINA
ZHANG SHAOCHEN
ZHANG QIANG
CUI XIAOYUE

Assignees

陕西惠齐电力科技开发有限公司
中国铁路设计集团有限公司

Dates

Publication Date: 20260508
Application Date: 20260227

Claims (8)

1. The intelligent power switch cabinet comprises a switch cabinet body (1), a support (2) and a circuit breaker (3), wherein the bottom of the circuit breaker (3) is a supporting plate (31) and is slidably arranged on the support (2), and the intelligent power switch cabinet is characterized by further comprising a hand-pushing power storage mechanism (4) arranged on the support (2) and a locking mechanism (5) for locking the supporting plate (31) in an initial state; wherein, two convex blocks (32) are arranged at the bottom of the supporting plate (31); The hand-push force storage mechanism (4) comprises a screw rod (41) rotationally connected to the middle of the support (2), a group of limiting rods (42) are fixedly connected to the support (2), a main sliding block (43) is sleeved on the screw rod (41) in a threaded mode, two ends of the main sliding block (43) are movably sleeved on the two limiting rods (42) respectively, a tension piece (44) is fixedly connected to the protruding block (32), the other end of the tension piece (44) passes through the main sliding block (43) and is fixedly connected with an auxiliary sliding block (45), and the auxiliary sliding block (45) is movably sleeved on the limiting rods (42); The two convex blocks (32) are respectively positioned at different sides of two ends of the main sliding block (43), and the auxiliary sliding block (45) in the initial state is abutted against the main sliding block (43).
2. The intelligent power switch cabinet according to claim 1, wherein the locking mechanism (5) comprises two plate members (53) which are fixedly arranged at one side in the support (2) in a symmetrical direction, a plurality of bayonets (531) are equidistantly formed on the plate members (53), a top block (54) capable of blocking the bayonets (531) is movably arranged in the plate members (53), a frame body (51) is fixedly connected to the bottom of the supporting plate (31), tension spring combined oblique clamping blocks (52) capable of being clamped in the bayonets (531) are movably arranged at two ends of the frame body (51), and the inclined surface parts of the two tension spring combined oblique clamping blocks (52) face opposite to each other; the other side in the support (2) is also provided with a push-pull component (55) for controlling the two groups of ejector blocks (54) to move independently.
3. The intelligent power switch cabinet according to claim 2, wherein a straight notch (532) is formed in the bottom of the plate (53), and a protruding shaft (541) capable of penetrating through the straight notch (532) is fixedly connected to the top block (54); The push-pull assembly (55) comprises a tension spring combined rod (551) hinged in the support (2), a connecting rod (552) is hinged in the middle of the tension spring combined rod (551), the other end of the connecting rod (552) is hinged with a protruding shaft (541) in the diagonal direction, and one end of the tension spring combined rod (551) is rotatably connected with a contact wheel (553); the contact wheel (553) in the initial state has a superposition part with the main slider (43) in the moving direction of the main slider (43); when the main sliding block (43) moves and presses the contact wheel (553) to rotate the frame body (51), the corresponding bayonet (531) can be plugged by pulling the top block (54) through the connecting rod (552).
4. The intelligent power switch cabinet according to claim 2, wherein the distance between the two tension spring combined oblique clamping blocks (52) is larger than the length of the plate (53).
5. The intelligent power switch cabinet according to claim 1, wherein a shell (33) is fixedly connected to the bottom of the supporting plate (31), and a spring combination stop lever (6) is movably installed in the shell (33); one side in the support (2) is fixedly connected with an inclined block plate (21), and in an initial state, the spring combination stop lever (6) is subjected to self elasticity to enable one end of the spring combination stop lever to have an overlapping part with the inclined block plate (21) in the advancing direction; the advancing direction of the auxiliary sliding block (45) and one end of the spring combination stop lever (6) are in a dislocation state at the beginning, and when one end of the spring combination stop lever (6) is in butt joint with the inclined block plate (21), the other end of the spring combination stop lever can extend outwards and can be blocked in front of the auxiliary sliding block (45).
6. The intelligent power switch cabinet according to claim 5, wherein the spring combination stop lever (6) is provided with a ball at one end close to the support (2).
7. The intelligent power switch cabinet according to claim 1, wherein the auxiliary sliding block (45) is further provided with a damping mechanism (7) for protecting the supporting plate (31) after the supporting plate moves fast.
8. The intelligent power switch cabinet according to claim 7, wherein the damping mechanism (7) comprises a sleeve rod (71) with one end fixedly sleeved in the auxiliary sliding block (45), a plurality of first air holes (72) which can be communicated with a cavity of the sleeve rod (71) are formed in the sleeve rod (71) at equal intervals, second air holes (73) are formed in the end part of the sleeve rod (71), a piston rod (74) is fixedly connected to one end of the protruding block (32), and one end of the piston rod (74) can be sleeved in the sleeve rod (71); One end of the sleeve rod (71) facing the piston rod (74) is provided with a flaring.

Description

Intelligent power switch cabinet Technical Field The invention belongs to the technical field of switch cabinets, and particularly relates to an intelligent power switch cabinet. Background The power switch cabinet is a power distribution cabinet, and is complete electrical equipment used for ensuring power safety and high-efficiency transmission and distribution and use in a power system. On the basis of the traditional switch cabinet, the intelligent power switch cabinet integrates an intelligent monitoring and communication unit, and the intelligent power switch cabinet can report the conditions of all parts in the switch cabinet in real time. While the PT cart is an important part in the switch cabinet, an operator can shake the PT cart from the "working position" to the "test position" or pull the PT cart out of the cabinet completely to facilitate maintenance or debugging thereof. After the equipment is overhauled or debugged, an operator can drive the PT handcart to push from a test position to a working position by rotating the screw rod, so that a moving contact of equipment on the handcart is matched with a fixed contact on the cabinet body. However, due to the fact that the screw pitch of the screw rod is short, the moving contact of the equipment on the handcart moves too slowly when approaching the fixed contact, so that the operation time is prolonged, arc discharge can be caused due to insufficient speed in the approaching final stage of the contact, the surface of the contact is damaged, and finally the reliability of electrical connection can be affected. Therefore, in order to solve the problems, an intelligent power switch cabinet is provided. Disclosure of Invention In order to solve the problems in the background art, the invention provides an intelligent power switch cabinet, which solves the problem that arc discharge can be caused when a moving contact and a fixed contact approach phases due to the fact that a handcart is driven by a manually rotating screw rod to move at a low speed. The intelligent power switch cabinet comprises a switch cabinet body, a support, a breaker, a hand-pushing force storage mechanism and a locking mechanism, wherein the bottom of the breaker is a supporting plate and is slidably arranged on the support; The hand-push force storage mechanism comprises a screw rod rotationally connected to the middle of a support, a group of limiting rods are fixedly connected to the support, a main sliding block is sleeved on the screw rod in a threaded mode, two ends of the main sliding block are respectively movably sleeved on the two limiting rods, a tension piece is fixedly connected to the protruding block, the other end of the tension piece passes over the main sliding block and is fixedly connected with an auxiliary sliding block, and the auxiliary sliding block is movably sleeved on the limiting rods; the two protruding blocks are respectively positioned on different sides of two ends of the main sliding block, and the auxiliary sliding block in the initial state is abutted with the main sliding block. Preferably, the locking mechanism comprises two plate members which are fixedly arranged at one side in the support in the symmetrical direction, a plurality of bayonets are formed in the plate members at equal intervals, a top block capable of plugging the bayonets is movably arranged in the plate members, the bottom of the support plate is fixedly connected with a frame body, two ends of the frame body are movably provided with tension spring combined inclined clamping blocks capable of being clamped in the bayonets, and inclined surface parts of the two tension spring combined inclined clamping blocks face opposite directions; the other side in the support is also provided with a push-pull component for controlling the two groups of ejector blocks to move independently. Preferably, the bottom of the plate is provided with a straight notch, and the top block is fixedly connected with a convex shaft which can pass through the straight notch; The push-pull assembly comprises a tension spring combined rod hinged in the support, a connecting rod is hinged in the middle of the tension spring combined rod, the other end of the connecting rod is hinged with a convex shaft in the diagonal direction, and one end of the tension spring combined rod is rotatably connected with a contact wheel; the contact wheel in the initial state has an overlapping part with the main sliding block in the moving direction of the main sliding block; And when the main sliding block moves and extrudes the contact wheel to enable the frame body to rotate, the corresponding bayonet can be plugged by pulling the top block through the connecting rod. Preferably, the distance between the two tension spring combined oblique clamping blocks is larger than the length of the plate. Preferably, the bottom of the supporting plate is fixedly connected with a shell, and a spring combination stop lever is mo