A mobile vacuum circuit breaker

Abstract

The present invention discloses a mobile vacuum circuit breaker, comprising a circuit breaker body and a support seat arranged at the bottom of the circuit breaker body, wherein a base is arranged at the bottom of the support seat, a wheel frame is arranged inside the base, a connecting shaft and a locking plate are arranged inside the wheel frame, a wheel is movably arranged on the connecting shaft, a square hole and a supporting plate are arranged on the side plate of the wheel frame, a locking block that fits through the square hole and a strip groove that matches the supporting plate are arranged on the locking plate, when the locking block is located in the square hole, it is supported by the supporting plate and separated from the ground, after the locking block is separated from the square hole, the locking plate moves vertically downward and makes the supporting plate fit into the strip groove, at which time the locking block contacts the ground to prevent the wheel from rotating. The beneficial effect of the present invention is that the circuit breaker body can be moved or fixed by moving the locking plate horizontally, so as to adjust the position as needed.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a mobile vacuum circuit breaker. Background Art

[0002] A vacuum circuit breaker is a high-voltage electrical switchgear used to disconnect and protect circuits. Its working principle is that when a short circuit occurs or the circuit needs to be disconnected, the contacts in the vacuum circuit breaker will separate and generate an arc. Since the vacuum circuit breaker is in a high vacuum environment, the arc can be quickly extinguished. Currently, vacuum circuit breakers are widely used in industrial and mining enterprises, power plants, substations and other places.

[0003] Traditional vacuum circuit breakers are fixedly installed and used in specific locations, such as switch cabinets, distribution cabinets or poles. They do not have the function of mobility, and are not convenient for adjustment according to the actual access equipment location. At the same time, it increases the difficulty of vacuum circuit breaker maintenance and inspection. At present, there are also some technical solutions on the market that place vacuum circuit breakers on chassis vehicles for movement, which can solve the problem of vacuum circuit breakers being unable to move to a certain extent. However, on the one hand, the vacuum circuit breaker and the chassis vehicle are not a whole and are easy to separate. On the other hand, the chassis vehicle is easy to move when pushed by the operator, affecting the normal use of the vacuum circuit breaker. Therefore, it is necessary to develop a vacuum circuit breaker specifically for the above problems. Summary of the invention

[0004] In view of the existing vacuum circuit breaker, it is difficult to move the whole, it is not convenient to adjust it in real time according to the location of the access equipment, and the overall maintenance and inspection are difficult. The following invention is proposed:

[0005] A mobile vacuum circuit breaker comprises a circuit breaker body and a support seat arranged at the bottom of the circuit breaker body, wherein a base is arranged at the bottom of the support seat, a wheel frame is arranged inside the base, a connecting shaft and a locking plate are arranged inside the wheel frame, a wheel is movably arranged on the connecting shaft, a side plate is arranged on the side of the wheel frame, a square hole is arranged through the side plate and a support plate is arranged at the bottom of the square hole, a locking block is arranged at one end of the locking plate and is horizontally movably matched to pass through the square hole, and a strip groove matching the support plate is arranged on the locking plate. When the locking block is located in the square hole, it is supported by the support plate and separated from the ground, at which time the wheel can rotate and drive the circuit breaker body to move; the locking plate is pushed inward horizontally until the locking block is separated from the square hole, the locking plate moves vertically downward and makes the support plate cooperate to insert into the strip groove, at which time the locking block contacts the ground to prevent the wheel from rotating and fix the circuit breaker body.

[0006] Furthermore, a mounting block is provided on the outer side of the wheel frame, and a square groove is provided on the mounting block, which cooperates with and is connected to the square hole. The locking plate is laterally inserted into the square hole and the square groove at one end away from the wheel, and can move vertically and horizontally along the square groove. The square groove improves the stability of fixing the locking plate.

[0007] Furthermore, a support platform extending outward is installed on the top of the wheel frame, and a pull plate extending toward the support plate is provided on the top of the locking block, and the pull plate is matched with the top of the support platform.

[0008] Furthermore, one end of the connecting shaft is provided with a fixing head located on the outer side of the side plate, the mounting block is provided with a mounting hole for the fixing head to be inserted into, a disassembly groove is provided in the fixing head, and the other end is provided with a fixing sleeve for fixing the connecting shaft to the wheel frame.

[0009] Furthermore, a first fixing hole is provided in the disassembly groove, and a first fixing piece is threadedly connected in the first fixing hole to fix the mounting block to the outer side of the wheel frame from the outside.

[0010] Furthermore, a second fixing hole penetrating into the square groove is provided on the top of the mounting block, and a second fixing piece is threadedly connected in the second fixing hole and presses the locking plate downward from the top.

[0011] The first fixing member detachably fixes the mounting block to the side of the wheel frame, and the second fixing member presses the locking plate from above to ensure that the locking block does not move upward and leave the ground.

[0012] Furthermore, an annular plate protruding inwards is provided around the square hole, and the bottom of the annular plate is a supporting plate.

[0013] Furthermore, the wheel frame is respectively provided on the left and right sides of the base, and the two wheel frames are fixedly connected by a connecting plate.

[0014] Furthermore, a limiting plate is provided on the outer side of the locking plate to prevent the locking plate from escaping from the square groove, thereby further improving the stability of fixing the locking plate.

[0015] The present invention proposes a mobile vacuum circuit breaker, comprising a circuit breaker body and a wheel frame arranged at the bottom of the circuit breaker body, wherein the wheel frame is provided with a movably rotatable wheel and a locking plate that can be moved horizontally and vertically, and the wheel can be rotated or fixed by moving the locking plate to separate from or contact the ground, so that an operator can move the circuit breaker body according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2It is a schematic diagram of the three-dimensional structure of the wheel frame in the present invention;

[0018] Figure 3 It is a schematic diagram of the split structure of the wheel frame in the present invention;

[0019] Figure 4 It is a schematic diagram of a partial three-dimensional structure of a wheel frame in the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting shaft in the present invention.

[0021] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0022] 1. Circuit breaker body; 2. Support seat; 3. Wheel frame; 4. Connecting shaft; 5. Locking plate; 6. Support platform; 11. Base; 12. Terminal block; 21. Square hole; 22. Ring plate; 23. Support plate; 24. Side plate; 31. Wheel; 32. Connecting plate; 33. Square groove; 34. Mounting block; 35. Mounting hole; 41. Fixing sleeve; 42. Fixing head; 43. First fixing hole; 44. Second fixing hole; 45. Disassembly groove; 46. First fixing piece; 47. Second fixing piece; 51. Locking block; 52. Strip groove; 53. Limiting plate; 54. Pull plate. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0024] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0026] In addition to being used to indicate a position or location relationship, some of the above terms may also be used to indicate other meanings. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1-Figure 5 As shown, it is a preferred embodiment of the present invention, a mobile vacuum circuit breaker, comprising a circuit breaker body 1, a support seat 2, and a base 11, a wiring terminal 12 is provided on the circuit breaker body 1, the circuit breaker body 1 is mounted on the support seat 2, the support seat 2 is mounted on the base 11, a wheel frame 3 is provided on each of the left and right sides of the base 11, the two wheel frames 3 are connected by a horizontal connecting plate 32, a connecting shaft 4 and a locking plate 5 are provided in the wheel frame 3, a wheel 31 is movably provided on the connecting shaft 4, in this embodiment, the number of connecting shafts 4 and wheels 31 in each wheel frame 3 is two, a side plate 24 is provided on the side of the wheel frame 3, a square hole 21 is provided on the side plate 24, and a support plate 23 is provided at the bottom of the square hole 21. One end of the locking plate 5 moves out horizontally from the square hole 21 toward the outside of the wheel frame 3, and the other end is provided with a locking block 51 that moves horizontally and fits through the square hole 21, and a strip groove 52 vertically matched with the support plate 23 is provided on the locking plate 5.

[0029] The locking block 51 is located between the two wheels 31. When the locking plate 5 is pulled horizontally until the locking block 51 is inserted into the square hole 21, the locking block 51 is separated from the ground by the support plate 23, and the wheel 31 can rotate freely, so that the operator can move the circuit breaker plate body; by pushing the locking plate 5 inward until the locking block 51 is completely separated from the square hole 21, the support plate 23 is inserted into the strip groove 52, and the locking block 51 contacts the ground, preventing the wheel 31 from rotating, so as to prevent the circuit breaker body 1 from moving, so as to facilitate its normal use.

[0030] Furthermore, a mounting block 34 is provided on the outer side of the wheel frame 3, and a square groove 33 is provided on the mounting block 34, which is matched with and connected to the square hole 21. The locking plate 5 is laterally movable and inserted into the square hole 21 and the square groove 33 at one end away from the wheel 31; a fixing head 42 is provided at one end of the connecting shaft 4 on the outer side of the side plate 24, and a mounting hole 35 is provided on the mounting block 34 for the fixing head 42 to be matched and inserted. Figure 5 As shown, a disassembly groove 45 is provided in the fixing head 42 , and a fixing sleeve 41 fixedly connected to the connecting shaft 4 to fix the connecting shaft 4 on the wheel frame 3 is provided at the other end.

[0031] One end of the locking plate 5 is inserted into the square hole 21 and the square groove 33, and can move horizontally and vertically therein. After the locking block 51 contacts the ground, the end of the locking plate 5 is attached to the bottom surface of the square groove 33. In this embodiment, the disassembly groove 45 is hexagonal, and the connecting shaft 4 can be disassembled by inserting a tool matching the disassembly groove 45.

[0032] Furthermore, a first fixing hole 43 is provided in the disassembly groove 45, and a first fixing member 46 is threadedly connected to the first fixing hole 43 to fix the mounting block 34 to the outer side of the wheel frame 3 from the outside; a second fixing hole 44 is also provided at the top of the mounting block 34 and passes through the square groove 33, and a second fixing member 47 is threadedly connected to the second fixing hole 44 to press the locking plate 5 from the top downward.

[0033] Furthermore, a support platform 6 is installed on the top of the wheel frame 3. The support platform 6 is toward the outer edge of the wheel frame 3. An L-shaped pull plate 54 is provided on the top of the locking block 51. The end of the pull plate 54 extends horizontally toward the support platform 6. After the pull plate 54 is engaged with the top of the support platform 6, the support platform 6 supports the pull plate 54 to prevent the locking block 51 from moving downward.

[0034] In this embodiment, the square hole 21 is surrounded by an annular plate 22 protruding inward, and the bottom of the annular plate 22 is a support plate 23; the outer side of the locking plate 5 is provided with a limit plate 53, and the limit plate 53 protrudes inward to prevent the locking plate 5 from escaping from the square groove 33 inward.

[0035] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A mobile vacuum circuit breaker, comprising a circuit breaker body (1) and a support base (2) arranged at the bottom of the circuit breaker body (1), wherein a base (11) is arranged at the bottom of the support base (2), characterized in that: A wheel frame (3) is also provided in the base (11), a connecting shaft (4) and a locking plate (5) are provided inside the wheel frame (3), a wheel (31) is movably provided on the connecting shaft (4), a side plate (24) is provided on the wheel frame (3), a square hole (21) passing through the side plate (24) and a support plate (23) located at the bottom of the square hole (21), a locking block (51) is provided at one end of the locking plate (5) and is horizontally movably fitted through the square hole (21), and a locking block (51) is provided at the end of the locking plate (5) 5) is also provided with a strip groove (52) matching with the support plate (23), when the locking block (51) is located in the square hole (21), it is supported by the support plate (23) and separated from the ground, and the locking plate (5) is pushed inward horizontally until the locking block (51) is separated from the square hole (21), and the locking plate (5) moves vertically downward and makes the support plate (23) cooperate to insert into the strip groove (52), at which time the locking block (51) contacts the ground to prevent the wheel (31) from rotating; A mounting block (34) is provided on the outer side of the wheel frame (3), and a square groove (33) is provided on the mounting block (34) and is matched with and communicated with the square hole (21); the locking plate (5) is laterally movable at one end away from the wheel (31) and inserted into the square hole (21) and the square groove (33), and can move vertically and horizontally along the square groove (33); A support platform (6) extending outward is mounted on the top of the wheel frame (3), and a pull plate (54) extending toward the support plate (23) is provided on the top of the locking block (51), wherein the pull plate (54) is matched with the top of the support platform (6).

2. The vacuum circuit breaker according to claim 1, characterized in that: One end of the connecting shaft (4) is provided with a fixing head (42) located on the outer side of the side plate (24); the mounting block (34) is provided with a mounting hole (35) for the fixing head (42) to be inserted into; a disassembly groove (45) is provided in the fixing head (42); and the other end is provided with a fixing sleeve (41) for fixing the connecting shaft (4) on the wheel frame (3).

3. The vacuum circuit breaker according to claim 2, characterized in that: A first fixing hole (43) is provided in the disassembly groove (45), and a first fixing member (46) is threadedly connected to the first fixing hole (43) for fixing the mounting block (34) to the outer side of the wheel frame (3) from the outside.

4. The vacuum circuit breaker according to claim 3, characterized in that: A second fixing hole (44) penetrating into the square groove (33) is also provided at the top of the mounting block (34), and a second fixing member (47) is threadedly connected to the inner surface of the second fixing hole (44) and presses the locking plate (5) downward from the top.

5. The vacuum circuit breaker according to claim 1, characterized in that: An inwardly protruding annular plate (22) is provided around the square hole (21), and the bottom of the annular plate (22) is a supporting plate (23).

6. The vacuum circuit breaker according to claim 1, characterized in that: The wheel frame (3) is provided on each of the left and right sides of the base (11), and the two wheel frames (3) are fixedly connected via a connecting plate (32).

7. The vacuum circuit breaker according to claim 1, characterized in that: A limiting plate (53) is provided on the outer side of the locking plate (5) to prevent the locking plate (5) from escaping from the square groove (33).

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