Handcart type circuit breaker frame

Abstract

The utility model relates to a handcart type circuit breaker frame. The technical problem to be solved by the utility model is to provide a handcart type circuit breaker frame with a locking structure. According to the technical scheme, the frame comprises a frame body, a frame outer support, a frame upper plate assembly and a locking mechanism, the locking mechanism comprises a locking button, a button butt joint block, a connecting plate and a locking plate, one end of the connecting plate is connected with the button butt joint block, and the other end of the connecting plate is hinged to the locking plate; the button butt joint block is provided with a butt joint block limiting protrusion, the locking button comprises a button handheld part, a button end face part and a button butt joint part, and button limiting notches are formed in the upper end and the lower end of the button butt joint part. The utility model has the advantages that the locking mechanism is additionally arranged, so that the locking of the handcart type circuit breaker frame and the high-voltage cabinet body is realized, unauthorized or improper operation can be prevented, safety accidents caused by misoperation of personnel are effectively avoided, and the operation safety of equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to a trolley type circuit breaker frame. Background Art

[0002] The trolley circuit breaker is a switchgear widely used in medium and high voltage power systems, and the trolley circuit breaker frame is the main supporting structure of the vacuum circuit breaker, which is connected and disconnected by moving the bottom trolley. The existing trolley circuit breaker frame does not have a locking mechanism between itself and the high-voltage cabinet, lacks secondary safety protection, and easily increases the risk of operator misoperation. Operators are prone to closing or opening the circuit breaker without carefully confirming whether the circuit breaker is fully inserted or correctly positioned, which may cause electrical accidents; in addition, during maintenance or overhaul, if the circuit breaker is not locked correctly, other personnel may misoperate and cause the circuit breaker to close accidentally, causing electric shock or mechanical injury, which is poor in safety. Improvements and optimizations are made for this. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a trolley-type circuit breaker frame with a locking structure.

[0004] The technical solution adopted by the handcart type circuit breaker frame of the utility model is characterized in that it comprises a frame body, frame outer brackets arranged on the left and right sides of the frame body, a frame upper plate assembly arranged between the two frame outer brackets, and a locking mechanism arranged on the frame upper plate assembly, wherein the locking mechanism comprises a locking button, a button docking block, a connecting plate and a locking plate, wherein one end of the connecting plate is connected to the button docking block and the other end thereof is hinged to the locking plate, the button docking block is provided with a docking block limiting protrusion, the locking button comprises a button hand-held portion, a button end face portion and a button docking portion, and the upper and lower ends of the button docking portion are provided with button limiting recesses corresponding to the docking block limiting protrusion;

[0005] The frame upper plate assembly includes a frame upper plate and a button rear fixing plate, the frame upper plate includes an upper plate body, the middle part of the upper plate body is provided with an upper plate through hole for the button handle to pass through, the back of the upper plate body is provided with a longitudinally arranged rear baffle and a transversely arranged guide plate at the left and right ends of the upper plate through hole, the rear baffle is provided with a rear baffle limit opening for limiting the action of the connecting plate, and the guide plate is provided with a guide plate guide groove for the insertion and guidance of the locking plate.

[0006] The locking mechanism includes a locking spring, one end of which abuts against the button docking portion and the other end abuts against the button rear fixing plate, a button anti-rotation arc protrusion is provided on the front side of the button end surface portion, and the upper plate main body is provided with upper plate limiting arc recesses corresponding to the button anti-rotation arc protrusion at arc intervals at the upper plate through hole.

[0007] A spring positioning column is provided at the back of the button docking part, a spring fixing seat is provided on the button rear fixing plate, a spring positioning hole is provided in the spring fixing seat, one end of the locking spring is placed in the spring positioning hole and the other end is sleeved on the spring positioning column.

[0008] The button rear fixing plate is detachably fixed to the rear baffle.

[0009] The button handle is a cylindrical structure, and protective lines are arranged on the outer wall thereof.

[0010] The advantages of the trolley type circuit breaker frame of the utility model are: a locking mechanism is added to realize the locking of the trolley type circuit breaker frame and the high-voltage cabinet, which can prevent unauthorized or improper operation, effectively avoid safety accidents caused by personnel misoperation, and greatly improve the safety of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0012] Figure 1 It is a structural schematic diagram of the frame of the trolley type circuit breaker of the utility model;

[0013] Figure 2 It is an exploded view of the locking mechanism of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the button docking block of the utility model;

[0015] Figure 4 It is a schematic diagram of the back structure of the locking button of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the frame upper plate assembly of the utility model;

[0017] Figure 6 It is a structural schematic diagram of the upper plate of the frame of the utility model;

[0018] Figure 7 It is a structural schematic diagram of the locking button of the utility model;

[0019] Figure 8 It is a front structural schematic diagram of a button rear fixing plate of the utility model. DETAILED DESCRIPTION

[0020] like Figure 1-8As shown, the trolley-type circuit breaker frame involved in the utility model comprises a frame body 1, a frame outer bracket 2 arranged on the left and right sides of the frame body 1, a frame upper plate assembly 3 arranged between the two frame outer brackets 2, and a locking mechanism 4 arranged on the frame upper plate assembly 3, wherein the locking mechanism 4 comprises a locking button 6, a button docking block 7, a connecting plate 8 and a locking plate 9, wherein one end of the connecting plate 8 is connected to the button docking block 7 and the other end is hinged to the locking plate 9, the button docking block 7 is provided with a docking block limiting protrusion 18, the locking button 6 comprises a button hand-held portion 12, a button end surface portion 13 and a button docking portion 14, and the upper and lower ends of the button docking portion 14 are provided with button limiting recesses 17 corresponding to the docking block limiting protrusion 18; the frame upper plate assembly 3 comprises a frame upper plate 20 and a button rear fixing plate 21, the frame upper plate 20 comprises an upper plate body 23, the upper plate body 2 A through hole 24 for the button hand-held part 12 to penetrate is provided in the middle of the upper plate 3, and a longitudinally arranged rear baffle 25 and a transversely arranged guide plate 26 are provided on the back of the upper plate body 23 at the left and right ends of the upper plate through hole 24. The rear baffle 25 is provided with a rear baffle limiting opening 27 for limiting the action of the connecting plate 8, and a guide plate guide groove 28 for inserting and guiding the locking plate 9 is provided in the guide plate 26. The locking plate 9 is pushed out to both ends by rotating the locking button 90 degrees to achieve the locking of the trolley-type circuit breaker frame and the high-voltage cabinet. The locking mechanism can prevent unauthorized or improper operation, effectively avoid safety accidents caused by personnel misoperation, thereby greatly improving the safety of equipment operation. The locking mechanism can ensure that the circuit breaker is in a locked state when not in operation, avoiding the misclosing and misopening of the circuit breaker caused by misoperation, which is very important for the safety of maintenance personnel and the reliable operation of equipment.

[0021] The locking mechanism 4 includes a locking spring 10, one end of which abuts against the button docking portion 14 and the other end abuts against the button rear fixing plate 21. A button anti-rotation arc protrusion 30 is provided on the front of the button end surface portion 13. The upper plate main body 23 is provided with upper plate limiting arc recesses 31 corresponding to the button anti-rotation arc protrusion 30 around the upper plate through hole 24 at arc intervals. When the locking button 6 is not operated, the locking button 6 is effectively limited to prevent accidental locking or mislocking, thereby further improving safety.

[0022] The number of the upper plate limiting circular arc notches 31 is 4, and the rotation action is more stable and reliable.

[0023] A spring positioning column 15 is provided at the back of the button docking portion 14, a spring fixing seat 33 is provided on the button rear fixing plate 21, a spring positioning hole 34 is provided in the spring fixing seat 33, one end of the locking spring 10 is placed in the spring positioning hole 34 and the other end is sleeved on the spring positioning column 15, so that the spring action is more stable and reliable and the service life is longer.

[0024] The button rear fixing plate 21 is detachably fixed to the rear baffle plate 25, so as to facilitate maintenance and replacement at a later stage.

[0025] The button handle 12 is a cylindrical structure, and a protective pattern 37 is provided on its outer wall to facilitate operation.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A trolley type circuit breaker frame, characterized in that: The invention comprises a frame body (1), frame outer brackets (2) arranged on the left and right sides of the frame body (1), a frame upper plate assembly (3) arranged between the two frame outer brackets (2), and a locking mechanism (4) arranged on the frame upper plate assembly (3); the locking mechanism (4) comprises a locking button (6), a button docking block (7), a connecting plate (8) and a locking plate (9); one end of the connecting plate (8) is connected to the button docking block (7) and the other end is hinged to the locking plate (9); the button docking block (7) is provided with a docking block limiting protrusion (18); the locking button (6) comprises a button hand-held portion (12), a button end surface portion (13) and a button docking portion (14); the upper and lower ends of the button docking portion (14) are provided with button limiting recesses (17) corresponding to the docking block limiting protrusion (18); The frame upper plate assembly (3) comprises a frame upper plate (20) and a button rear fixing plate (21), the frame upper plate (20) comprising an upper plate body (23), a middle portion of the upper plate body (23) being provided with an upper plate through hole (24) for the button hand-held portion (12) to pass through, a longitudinally arranged rear baffle plate (25) and a transversely arranged guide plate (26) being provided on the back of the upper plate body (23) at the left and right ends of the upper plate through hole (24), the rear baffle plate (25) being provided with a rear baffle limiting opening (27) for limiting the movement of the connecting plate (8), and a guide plate guide groove (28) for inserting and guiding the locking plate (9) being provided in the guide plate (26).

2. The trolley type circuit breaker frame according to claim 1, characterized in that: The locking mechanism (4) comprises a locking spring (10), one end of the locking spring (10) abuts against the button docking portion (14) and the other end abuts against the button rear fixing plate (21), a button anti-rotation circular arc protrusion (30) is provided on the front of the button end surface portion (13), and upper plate limiting circular arc recesses (31) corresponding to the button anti-rotation circular arc protrusion (30) are provided at intervals around the upper plate through hole (24) on the upper plate main body (23).

3. The trolley type circuit breaker frame according to claim 2, characterized in that: The number of the upper plate limiting circular arc notches (31) is 4.

4. The trolley type circuit breaker frame according to claim 2, characterized in that: A spring positioning column (15) is provided on the back of the button docking portion (14), a spring fixing seat (33) is provided on the button rear fixing plate (21), a spring positioning hole (34) is provided in the spring fixing seat (33), one end of the locking spring (10) is placed in the spring positioning hole (34) and the other end is sleeved on the spring positioning column (15).

5. The trolley type circuit breaker frame according to claim 1, characterized in that: The button rear fixing plate (21) is detachably fixed to the rear baffle plate (25).

6. The trolley type circuit breaker frame according to claim 1, characterized in that: The button handle (12) is a cylindrical structure, and a protective pattern (37) is provided on its outer wall.

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