Outdoor vacuum circuit breaker suitable for high altitude area

Abstract

The utility model discloses an outdoor vacuum circuit breaker suitable for a high altitude area, which comprises a circuit breaker body, a lock catch mechanism and a support mechanism, the circuit breaker body is clamped at the bottom of the lock catch mechanism, and the support mechanism is connected at the bottom of the lock catch mechanism. According to the utility model, through the innovative structural design of self-weight driving clamping locking and pawl limiting, the problems of low disassembly and assembly efficiency, high maintenance cost and the like caused by the fact that a traditional vacuum circuit breaker depends on multi-screw fixation in a high altitude area are solved, a self-weight driving clamping mechanism is adopted to replace traditional screw fastening, and the self-weight of the circuit breaker is utilized to trigger locking, so that the safety of the vacuum circuit breaker is improved. Meanwhile, the pawl limiting device achieves instantaneous locking and releasing through mechanical clamping, the supporting mechanism is combined to ensure the installation precision, repeated adjustment is avoided, the tool dependence is remarkably reduced, the core pain point of low disassembly and assembly efficiency of the vacuum circuit breaker in the high-altitude area is overcome, and the disassembly and assembly efficiency of the vacuum circuit breaker in the high-altitude area is improved. And the method has environmental adaptability and safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit breaker, concretely is an outdoor vacuum circuit breaker suitable for high altitude area belongs to circuit breaker technical field. BACKGROUND

[0002] The "vacuum circuit breaker" is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, being suitable for frequent operation and arc extinguishing without maintenance, and is relatively popular in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV, 50 Hz three-phase alternating current system, which can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants and substations. With the expansion of the power system to extreme environments such as high altitude and high cold, higher requirements are placed on the environmental adaptability and maintenance convenience of power transmission and distribution equipment.

[0003] However, the existing circuit breakers mostly have various problems, for example, in the high-altitude outdoor pole-mounted vacuum circuit breaker disclosed in the publication No. CN216389175U, although it can quickly heat and dry the inside of the mechanism box, then discharge the gas generated after drying, avoid the occurrence of electrical element creepage, abnormal flashover discharge phenomenon caused by insulation spacing, and increase the overall safety performance, but due to the unique low air pressure, strong ultraviolet radiation, large diurnal temperature difference, condensation, and frequent icing in high-altitude areas (altitude ≥ 1000 meters), the insulation performance, mechanical strength, and sealing performance of outdoor power equipment are severely challenged. The traditional outdoor vacuum circuit breaker is prone to problems such as degradation of insulation medium performance, sealing failure, and corrosion of mechanical parts in high-altitude environments, resulting in increased failure rate and the need for frequent maintenance. However, the existing circuit breaker installation structure is complex and relies on a large number of screws and other fasteners, which severely restricts maintenance efficiency. Therefore, there is an urgent need to design an outdoor vacuum circuit breaker specifically for high-altitude areas that optimizes the disassembly and assembly structure to reduce operation and maintenance costs while ensuring reliability. SUMMARY

[0004] The technical solution of the utility model provides a solution significantly different from the prior art to solve the technical problem of the over-simplified prior art solution. Specifically, the purpose of the utility model is to solve the above-mentioned shortcomings in the prior art by providing an outdoor vacuum circuit breaker suitable for high-altitude areas.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution:

[0006] An outdoor vacuum circuit breaker suitable for high-altitude areas, comprising a circuit breaker body, a lock catch mechanism, and a support mechanism, the circuit breaker body is connected to the bottom of the lock catch mechanism, the support mechanism is connected to the bottom of the lock catch mechanism, and the support mechanism is fixed to an external support structure.

[0007] The lock catch mechanism comprises a fixed seat, a limiting seat, a linkage rod and a lock catch plate, the limiting seat is fixed at one end of the fixed seat, one end of the linkage rod is rotationally connected to the limiting seat, and the other end is rotationally connected to the lock catch plate, the bottom of the circuit breaker body is provided with a protrusion, and the lock catch plate protrusion is in abutment;

[0008] The supporting mechanism comprises a supporting rod and a telescopic rod, a rectangular cavity is arranged through the inside of the supporting rod, the telescopic rod is slidingly connected in the rectangular cavity, one end of the supporting rod is fixed to the fixed seat, and one end of the telescopic rod is fixed to the external supporting structure.

[0009] As a further scheme of the utility model: the lock catch mechanism further comprises an abutment rod and a driven rod, the center of the limiting seat is provided with a mounting cavity, the abutment rod is slidingly connected at the center of the mounting cavity and partially located outside the limiting seat, one end of the driven rod is rotationally connected to the end of the abutment rod away from the limiting seat, and the other end of the driven rod is rotationally connected to the end of the lock catch plate close to the linkage rod.

[0010] As a further scheme of the utility model: the lock catch mechanism further comprises a first ratchet groove and a first ratchet pawl, the first ratchet groove is arranged on the side wall of the abutment rod, the first ratchet pawl is rotationally connected in the mounting cavity of the limiting seat through a rotating rod, a torsional spring is sleeved on the rotating rod of the first ratchet pawl, one end of the torsional spring is fixed to the limiting seat, the other end is fixed to the first ratchet pawl, and one end of the first ratchet pawl is in abutment in the first ratchet groove.

[0011] As a further scheme of the utility model: the supporting mechanism further comprises a butt joint seat, a connecting rod, an adjusting rod and a second ratchet pawl, the butt joint seat is fixed to the supporting rod, the connecting rod is rotationally connected to the butt joint seat, one end of the adjusting rod is fixed to the connecting rod, the adjusting rod is rotationally connected to the butt joint seat through the connecting rod, one end of the second ratchet pawl is rotationally connected to the adjusting rod, a second ratchet groove is arranged on the upper surface of the telescopic rod, a rectangular slot is arranged through the supporting rod, one end of the second ratchet pawl passes through the rectangular slot and is slidingly connected in the second ratchet groove of the telescopic rod.

[0012] As a further scheme of the utility model: a first reset member is sleeved outside the connecting rod, one end of the first reset member is fixed to the butt joint seat, a clamping rod is fixed to the side wall of the adjusting rod, and the other end of the first reset member is fixed to the clamping rod.

[0013] As a further scheme of the utility model: a second reset member is arranged between the adjusting rod and the second ratchet pawl.

[0014] As a further scheme of the utility model: the second pawl is fixed with a push rod at one end away from the support rod, and a sliding slot is arranged through the adjusting rod.

[0015] The utility model discloses the beneficial effects are:

[0016] In the utility model, the innovative structural design of the self-weight driving clamping locking and the pawl limiting solves the problems of low dismounting efficiency, high maintenance cost and the like of the traditional vacuum circuit breaker in the high-altitude area caused by the dependence on multiple screws, adopts the self-weight driving clamping mechanism to replace the traditional screw fastening, utilizes the self-weight triggering locking of the circuit breaker, does not need manual screwing of the screw, reduces the dismounting steps, simultaneously, the pawl limiting device realizes instantaneous locking and releasing through mechanical clamping, combines the support mechanism to ensure installation precision, avoids repeated adjustment, and the tool dependence is obviously reduced, the core pain point of low dismounting efficiency of the vacuum circuit breaker in the high-altitude area is solved, and environmental adaptability, safety and economy are combined, and an efficient solution scheme is provided for plateau power equipment operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is whole structure schematic diagram of the utility model;

[0018] Figure 2 It is external structure schematic diagram of the utility model lock catch mechanism and support mechanism;

[0019] Figure 3 It is support mechanism structure schematic diagram of the utility model;

[0020] Figure 4 It is second pawl connecting structure schematic diagram of the utility model;

[0021] Figure 5 It is lock catch mechanism structure schematic diagram of the utility model.

[0022] In the drawing: 1, circuit breaker body, 2, lock catch mechanism, 21, fixed seat, 22, limiting seat, 23, linkage rod, 24, lock catch plate, 25, abutment rod, 26, driven rod, 27, first ratchet groove, 28, first pawl, 3, support mechanism, 31, support, 32, telescopic rod, 33, butt joint seat, 34, connecting rod, 35, adjusting rod, 36, second pawl, 37, clamping rod, 38, first reset piece, 39, second reset piece, 310, push rod, 311, sliding slot. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] Embodiment one

[0025] As Figures 1 to 5 shown, an outdoor vacuum circuit breaker suitable for high-altitude areas, comprising a circuit breaker body 1, a lock catch mechanism 2 and a support mechanism 3, the circuit breaker body 1 is clamped at the bottom of the lock catch mechanism 2, the support mechanism 3 is connected at the bottom of the lock catch mechanism 2, and the support mechanism 3 is fixed on an external support structure;

[0026] The lock catch mechanism 2 comprises a fixed seat 21, a limiting seat 22, a linkage rod 23 and a lock catch plate 24, the limiting seat 22 is fixed at one end of the fixed seat 21, one end of the linkage rod 23 is rotatably connected to the limiting seat 22, and the other end is rotatably connected to the lock catch plate 24, the bottom of the circuit breaker body 1 is provided with a protrusion, and the protrusion of the lock catch plate 24 abuts;

[0027] The support mechanism 3 comprises a support rod 31 and a telescopic rod 32, a rectangular cavity is provided inside the support rod 31, the telescopic rod 32 is slidingly connected in the rectangular cavity, and one end of the support rod 31 is fixed to the fixed seat 21, and one end of the telescopic rod 32 is fixed to the external support structure;

[0028] The lock catch mechanism 2 further comprises an abutment rod 25 and a driven rod 26, a mounting cavity is provided at the center of the limiting seat 22, the abutment rod 25 is slidingly clamped at the center of the mounting cavity, and part of the abutment rod 25 is located outside the limiting seat 22, one end of the driven rod 26 is rotatably connected to the end of the abutment rod 25 away from the limiting seat 22, and the other end of the driven rod 26 is rotatably connected to the end of the lock catch plate 24 close to the linkage rod 23;

[0029] The lock catch mechanism 2 further comprises a first ratchet groove 27 and a first ratchet claw 28, the first ratchet groove 27 is provided on the side wall of the abutment rod 25, the first ratchet claw 28 is rotatably connected in the mounting cavity of the limiting seat 22 through a rotating rod, and a torsional spring is sleeved on the rotating rod of the first ratchet claw 28, one end of the torsional spring is fixed to the limiting seat 22, the other end is fixed to the first ratchet claw 28, and one end of the first ratchet claw 28 abuts in the first ratchet groove 27;

[0030] The support mechanism 3 further comprises a butt joint base 33, a connecting rod 34, an adjusting rod 35 and a second pawl 36, the butt joint base 33 is fixed on the support rod 31, the connecting rod 34 is rotationally connected on the butt joint base 33, one end of the adjusting rod 35 is fixed on the connecting rod 34, and the adjusting rod 35 is rotationally connected with the butt joint base 33 through the connecting rod 34, one end of the second pawl 36 is rotationally connected in the adjusting rod 35, and a second ratchet groove is arranged on the upper surface of the telescopic rod 32, and a notch is arranged through on the support rod 31, one end of the second pawl 36 passes through the rectangular notch and is slidably connected in the second ratchet groove of the telescopic rod 32.

[0031] In the utility model, through the innovative structural design of the self-weight driving clamping locking and the pawl limiting, the problems of low dismounting efficiency, high maintenance cost and the like caused by the dependence of the traditional vacuum circuit breaker on multiple screws in high-altitude areas are solved, the self-weight driving clamping mechanism is used to replace the traditional screw fastening, the circuit breaker self-weight is used to trigger the locking, manual screwing is not needed, the dismounting steps are reduced, the pawl limiting device is mechanically clamped to realize instantaneous locking and releasing, the installation precision is ensured in combination with the support mechanism 3, repeated adjustment is avoided, tool dependence is significantly reduced, the core pain point of low dismounting efficiency of the vacuum circuit breaker in high-altitude areas is solved, environmental adaptability, safety and economy are combined, and an efficient solution is provided for plateau power equipment operation and maintenance.

[0032] Embodiment two

[0033] As shown in Figures 1 to 5 the embodiment, in addition to all the technical features in the embodiment one, the embodiment further comprises:

[0034] The connecting rod 34 is externally sleeved with a first reset member 38, one end of the first reset member 38 is fixed with the butt joint base 33, a clamping rod 37 is fixed on the side wall of the adjusting rod 35, the other end of the first reset member 38 is fixed with the clamping rod 37, and the adjusting rod 35 can be quickly reset through the elastic force of the first reset member 38.

[0035] A second reset member 39 is arranged between the adjusting rod 35 and the second pawl 36, and the one end of the second pawl 36 can always abut against the telescopic rod 32 through the second reset member 39.

[0036] A push rod 310 is fixed on the end of the second pawl 36 away from the support rod 31, a sliding groove 311 is arranged through on the adjusting rod 35, the push rod 310 passes through the sliding groove 311, the second pawl 36 is driven to rotate through the push rod 310, so that the second pawl 36 can be quickly separated from the telescopic rod 32, and the telescopic rod 32 can be quickly moved in the support rod 31.

[0037] Working principle: when installing the circuit breaker, the protrusion at the bottom of the circuit breaker body 1 abuts against the abutting rod 25 during installation, and when abutting, the abutting rod 25 is moved by the weight of the circuit breaker body 1, the driven rod 26 is linked by the movement of the abutting rod 25, and in turn synchronously links the linkage rod 23 and the lock plate 24, and the protrusion is quickly clamped and locked by the lock plate 24, at this time the first pawl 28 is clamped in the first ratchet groove 27 to limit the abutting rod 25, then the reciprocating adjusting rod 35 is rotated, the second pawl 36 pushes the telescopic rod 32 to slide, and the circuit breaker body 1 is adjusted to the appropriate height, when disassembling, press the first pawl 28 to rotate, make it separate from the first ratchet groove 27, at this time the abutting rod 25 can slide freely, make the lock plate 24 separate from the protrusion at the bottom of the circuit breaker body 1.

[0038] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0039] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An outdoor vacuum circuit breaker suitable for high altitude areas comprising a circuit breaker body (1), a latch mechanism (2) and a support mechanism (3), characterized in that, The circuit breaker body (1) is clamped at the bottom of the lock mechanism (2), the supporting mechanism (3) is connected at the bottom of the lock mechanism (2), and the supporting mechanism (3) is fixed on the external support structure; The lock mechanism (2) comprises a fixed seat (21), a limiting seat (22), a linkage rod (23) and a lock plate (24), one end of the limiting seat (22) is fixed on the fixed seat (21), one end of the linkage rod (23) is rotatably connected on the limiting seat (22), the other end is rotatably connected with the lock plate (24), and the bottom of the circuit breaker body (1) is provided with a protrusion, and the protrusion of the lock plate (24) abuts. The supporting mechanism (3) comprises a supporting rod (31) and a telescopic rod (32), a rectangular cavity is arranged through the inside of the supporting rod (31), the telescopic rod (32) is slidably connected in the rectangular cavity, and one end of the supporting rod (31) is fixed with the fixed seat (21), and one end of the telescopic rod (32) is fixed on the external support structure.

2. The outdoor vacuum circuit breaker suitable for high altitude areas as claimed in claim 1 wherein: The lock mechanism (2) further comprises an abutment rod (25) and a driven rod (26), a mounting cavity is arranged at the center of the limiting seat (22), the abutment rod (25) is slidably clamped at the center of the mounting cavity, and part of the abutment rod (25) is located outside the limiting seat (22), one end of the driven rod (26) is rotatably connected with the end of the abutment rod (25) away from the limiting seat (22), and the other end of the driven rod (26) is rotatably connected with the end of the lock plate (24) close to the linkage rod (23).

3. The outdoor vacuum circuit breaker suitable for high altitude areas as claimed in claim 2 wherein: The lock mechanism (2) further comprises a first ratchet groove (27) and a first ratchet claw (28), the first ratchet groove (27) is arranged on the side wall of the abutment rod (25), the first ratchet claw (28) is rotatably connected in the mounting cavity of the limiting seat (22) through a rotating rod, a torsional spring is sleeved on the rotating rod of the first ratchet claw (28), one end of the torsional spring is fixed with the limiting seat (22), the other end is fixed with the first ratchet claw (28), and one end of the first ratchet claw (28) abuts in the first ratchet groove (27).

4. The outdoor vacuum circuit breaker suitable for high altitude areas as claimed in claim 1 wherein: The supporting mechanism (3) further comprises a butt joint seat (33), a connecting rod (34), an adjusting rod (35) and a second ratchet claw (36), the butt joint seat (33) is fixed on the supporting rod (31), the connecting rod (34) is rotatably connected on the butt joint seat (33), one end of the adjusting rod (35) is fixed on the connecting rod (34), the adjusting rod (35) is rotatably connected with the butt joint seat (33) through the connecting rod (34), one end of the second ratchet claw (36) is rotatably connected in the adjusting rod (35), a second ratchet groove is arranged on the upper surface of the telescopic rod (32), a rectangular slot is arranged through the supporting rod (31), one end of the second ratchet claw (36) passes through the rectangular slot and is slidably clamped in the second ratchet groove of the telescopic rod (32).

5. The outdoor vacuum circuit breaker suitable for high altitude areas as claimed in claim 4 wherein: The connecting rod (34) is externally sleeved with a first reset member (38), one end of the first reset member (38) is fixed with the butt joint seat (33), a clamping rod (37) is fixed on the side wall of the adjusting rod (35), and the other end of the first reset member (38) is fixed with the clamping rod (37).

6. The outdoor vacuum circuit breaker suitable for high altitude areas as claimed in claim 4 wherein: A second reset member (39) is arranged between the adjusting rod (35) and the second pawl (36).

7. The outdoor vacuum circuit breaker suitable for high altitude areas as claimed in claim 4 wherein, A push rod (310) is fixed on one end of the second pawl (36) away from the supporting rod (31), a sliding groove (311) is arranged through the adjusting rod (35), and the push rod (310) passes through the sliding groove (311).

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