A high-voltage switchgear self-weight isolation valve mechanism
A high-voltage switchgear and valve technology, which is applied to switchgear parts, substation/power distribution device shells, etc., can solve the problems of decreased protection level, valves that cannot be completely closed, and potential safety hazards in equipment maintenance.
Inactive Publication Date: 2017-01-11
DONGDIAN ELECTRIC TECH HANGZHOU CO LTD
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Problems solved by technology
When the handcart of the circuit breaker is withdrawn, the valve jams due to the fatigue and weakening of the spring, causing the valve to not be completely closed, and the protection level is reduced, which brings safety hazards to equipment maintenance
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[0013] A self-weight isolation valve mechanism of a high-voltage switchgear of the present invention includes an upper valve 1, a lower valve 2, a second valve guide plate 3, a valve limit plate 4, a return spring 5, a valve upper connecting plate 6, a valve lower connecting plate 7, Valve guide plate 8, backing plate 9, valve upper pull plate 10, valve pull down plate 11, guide rod 12, fan-shaped counterweight plate 13, roller 14, guide rail 15 and first valve guide plate 16;
[0014] like figure 1 , figure 2 As shown, the bottom of the high-voltage switch cabinet is provided with two guide rails, and one of the guide rails 15 has two parallel elongated through holes, and the elongated through hole near the front of the high-voltage switch cabinet is the first through hole. , the other through hole is the second through hole, the bottom of the first through hole is on the same level as the top of the second through hole, each through hole is provided with a roller 14, the f...
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The invention discloses a dead-load insulating valve mechanism for a solid cabinet. A traditional middle-placed switch cabinet breaker withdraws from an insulating valve mechanism through boosting, and spring tension is used as motive power, while buckling of the valve is frequent due to the tension fatigue of a spring. When a breaker handcart withdraws, the valve is clamped due to the elasticity reduction caused by spring fatigue, so that the valve cannot be completely closed, the protective grade is reduced, and potential safety hazards are brought to staff during equipment maintenance. The dead-load insulating valve mechanism comprises an upper valve, a lower valve, a second valve guide plate, a valve limiting plate, a reset spring, a valve upper connection plate, a valve lower connection plate, a valve guide plate, a backing plate, a valve upper pulling plate, a valve lower pulling plate, a guiding rod, a fan-shaped counterweight plate, rollers, a guide rail and a first valve guide plate. By the adoption of the dead-load insulating valve mechanism, the clamping phenomena of the valve, which is caused by the elasticity reduction due to spring fatigue, can be prevented as the spring tension manner is completely changed.
Description
technical field [0001] The patent of the invention relates to a new type of intelligent high-voltage power distribution equipment, in particular to a self-weight isolation valve mechanism of a high-voltage switch cabinet. Background technique [0002] The push-and-exit isolation valve mechanism of the traditional central cabinet circuit breaker mainly uses spring tension as the driving force, and the valve buckles are often caused by spring tension fatigue. When the handcart of the circuit breaker is withdrawn, the valve jams due to the weakening of spring fatigue and elastic force, resulting in the failure of the valve to be completely closed and the decrease of the protection level, which brings safety hazards to equipment maintenance. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a self-weight isolation valve mechanism for a solid cabinet. [0004] The self-weight isolation valve mechanism of a solid cabi...
Claims
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IPC IPC(8): H02B1/26H02B11/02
Inventor 张红亮曹利吴友敏
Owner DONGDIAN ELECTRIC TECH HANGZHOU CO LTD