A pushing and rotating mechanism facilitating the latching of a circuit breaker and a circuit breaker

Abstract

The present invention relates to a push-and-turn mechanism and a circuit breaker for facilitating the locking of a circuit breaker. The push-and-turn mechanism comprises a pushing component, a rotating component, and a bottom shell. The connecting portion of the pushing component is movably connected to the bottom shell. The hand-pushing portion is located at the head end of the connecting portion, and the pull hook is located at the tail end of the connecting portion. The tail of the pull hook has a bent portion. The main body of the rotating component is sleeved on the fixed column of the bottom shell so that the rotating component can rotate relative to the bottom shell. The column of the main body is connected with a lever and a pushed component. The bottom shell is provided with a notch. The toggle end of the lever is located at the notch. A part of the bent portion of the pull hook is placed behind the pushed component. When the bent portion of the pull hook is moved by force, it pushes the pushed component so that the toggle end of the lever rotates at a certain angle. Adding the push-and-turn mechanism of the present invention to the circuit breaker can make it safer to repair the circuit breaker and improve the safety of the circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers. Background Art

[0002] Conventional circuit breakers have a rotating shaft that is pushed by a manual push switch. After the manual push switch is activated, the rotating shaft is at the on-state, and the rotating shaft contacts the fixed shaft of the circuit breaker to energize the circuit breaker. After the manual push switch is disconnected, the rotating shaft moves to the off-state, and the rotating shaft separates from the fixed shaft of the circuit breaker to de-energize the circuit breaker. However, when the circuit breaker fails, especially when the manual push switch fails and cannot be flexibly started and disconnected, the circuit breaker cannot be powered on or off normally, which poses a risk. Also, when the circuit breaker line needs maintenance, if the manual push switch is accidentally touched by maintenance personnel or other personnel, causing the manual push switch to be closed, the maintenance personnel are at risk of electric shock. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a push-and-turn mechanism and a circuit breaker which are convenient for locking the circuit breaker, so as to make the circuit breaker safer to repair.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a push-and-turn mechanism for facilitating the locking of a circuit breaker, comprising a pushing component, a rotating component, and a bottom shell, wherein the pushing component comprises a hand-pushing portion, a connecting portion, and a hook, wherein the connecting portion of the pushing component is movably connected to the bottom shell, the hand-pushing portion is located at the head end of the connecting portion, the hook is located at the tail end of the connecting portion, and the tail of the hook has a bending portion.

[0005] The bottom shell is provided with a fixing column, the rotating component has a main body, the main body of the rotating component is provided with a sleeve hole, and the main body of the rotating component is sleeved on the fixing column of the bottom shell so that the rotating component can rotate relative to the bottom shell.

[0006] The column of the main body is connected with a lever and a pushed part, the bottom shell is provided with a slot, the driving end of the lever is located at the slot, and a part of the bent part of the pull hook is placed behind the pushed part. When the bent part of the pull hook is moved by force, it pushes the pushed part so that the driving end of the lever rotates at a certain angle.

[0007] Preferably, the notch formed on the bottom shell is an arc-shaped notch, the toggle end of the lever is initially located at the start of the notch, and the toggle end of the lever is located at the end of the notch after rotating a certain angle.

[0008] Preferably, the bottom shell is provided with a first limiting column for blocking the lever member, and the bottom shell is provided with a second limiting column for blocking the pushed member.

[0009] Preferably, a first retaining spring end positioning post is further provided at the rear side of the second limiting post of the bottom case. A convex post is provided at the top of the main body part. The convex post is sleeved with a retaining spring. One lead-out end of the retaining spring abuts against the first retaining spring end positioning post, and the other lead-out end of the retaining spring abuts against a second retaining spring end positioning post provided on the lever member.

[0010] Preferably, the connection part of the pushing member is movably connected to the bottom case in the following manner: the connection part of the pushing member has a first guide rail strip, and the bottom case has a second guide rail strip, a first guide rail groove, and a second guide rail groove. A part of the bending part is placed in the first guide rail groove, the first guide rail strip of the pushing member is placed in the second guide rail groove, and the pushing member can move along the second guide rail strip.

[0011] Preferably, a transverse retaining wall and a vertical retaining wall are further provided at the edge of the bottom case. A notch for placing the hand-pushing part is formed at the intersection of the transverse retaining wall and the vertical retaining wall; the movement of the hand-pushing part is limited by the transverse retaining wall; the pushing member is further provided with a spring positioning convex block, and the spring positioning convex block is provided with a spring positioning post; one end of the spring is sleeved on the spring positioning post, and the other end of the spring abuts against the inner wall surface of the vertical retaining wall; the bottom case has a third guide rail strip, and the bottom surface of the spring positioning convex block is located on the top surface of the third guide rail strip.

[0012] Preferably, the hand-pushing part is provided with a through hole penetrating through the top and bottom.

[0013] Preferably, the hand-pushing part further has a hand-pushing convex block.

[0014] Preferably, the hand-pushing convex block is provided with a groove.

[0015] A circuit breaker adopts the above-mentioned pushing and rotating mechanism.

[0016] The beneficial effect of the present invention is that by adding the pushing and rotating mechanism of the present invention to the circuit breaker, the maintenance of the circuit breaker can be made safer, and the safety of the circuit breaker can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the pushing member in the present invention;

[0019] Figure 2 is a three-dimensional structural schematic diagram of the pushing member in another direction in the present invention;

[0020] Figure 3 is Figure 1 a top view schematic diagram of

[0021] Figure 4 is a three-dimensional structural schematic diagram of the rotating member in the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating component in another direction of the present invention;

[0023] Figure 6 yes Figure 4 A top view schematic diagram of

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the bottom shell of the present invention;

[0025] Figure 8 yes Figure 7 A top view schematic diagram of

[0026] Figure 9 It is a structural schematic diagram of a state in which the driving end of the driving lever of the present invention is initially located at the starting part of the notch;

[0027] Figure 10 It is a structural schematic diagram of a state in which the toggle end of the toggle lever of the present invention is located at the rear end of the notch after being rotated by a certain angle;

[0028] Among them, 1. Pushing component, 2. Rotating component, 3. Bottom shell, 4. Rotating shaft, 5. Circlip, 6. Spring;

[0029] 101, hand push portion, 102, connecting portion, 103, pull hook, 104, first guide rail, 105, spring positioning protrusion, 106, spring positioning column, 107, through hole, 108, hand push protrusion;

[0030] 201, main body, 202, lever member, 203, push member, 204, second clamp spring end positioning column, 205, convex column;

[0031] 301. Fixed column, 302. Notch, 303. First limiting column, 304. Second limiting column, 305. First retaining spring end positioning column, 306. Second guide rail, 307. Third guide rail, 308. First guide groove, 309. Second guide groove, 310. Horizontal retaining wall, 311. Vertical retaining wall. DETAILED DESCRIPTION

[0032] The present invention will now be further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] like Figure 9 , Figure 10 As shown, a push-and-turn mechanism for facilitating the locking of a circuit breaker comprises a pushing component 1, a rotating component 2, and a bottom shell 3. Figure 10 The direction of the straight arrow in the middle is the pushing direction of the push component 1 when it is pushed outward. Figure 10The direction of the middle arc arrow is the rotation direction of the rotating component 2 relative to the bottom shell 3 when the pushing component 1 is pushed outward.

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, the pushing component 1 has a hand-pushing portion 101, a connecting portion 102 and a hook 103. The connecting portion 102 of the pushing component 1 is movably connected to the bottom shell 3. The hand-pushing portion 101 is located at the head end of the connecting portion 102, and the hook 103 is located at the tail end of the connecting portion 102. The tail of the hook 103 has a bending portion.

[0035] like Figure 7 , Figure 8 As shown, Figure 7 , Figure 8 The bottom shell shown in FIG. 3 only shows the parts related to the present invention, and the bottom shell 3 is provided with a fixing column 301. Figure 4 , Figure 5 , Figure 6 As shown, the rotating component 2 has a main body 201 , and a sleeve hole is opened in the main body 201 of the rotating component 2 . The main body 201 of the rotating component 2 is sleeved on the fixing column 301 of the bottom shell 3 so that the rotating component 2 can rotate relative to the bottom shell 3 .

[0036] The column of the main body 201 is connected with a lever 202 and a pushed piece 203. The bottom shell 3 is provided with a slot 302. The driving end of the lever 202 is located at the slot 302. A part of the bent portion of the hook 103 is placed behind the pushed piece 203. When the bent portion of the hook 103 is moved by force, it pushes the pushed piece 203 so that the driving end of the lever 202 rotates at a certain angle.

[0037] like Figure 7 , Figure 8 As shown, preferably, the slot 302 provided on the bottom shell 3 is an arc slot. The toggle end of the lever 202 is initially located at the start of the slot 302, and the toggle end of the lever 202 is located at the end of the slot 302 after rotating a certain angle.

[0038] Preferably, the bottom shell 3 is provided with a first limiting column 303 for blocking the lever member 202 , and the bottom shell 3 is provided with a second limiting column 304 for blocking the pushed member 203 .

[0039] Preferably, a first retaining spring end positioning column 305 is also provided on the rear side of the second limiting column 304 of the bottom shell 3, and a protruding column 205 is provided on the top of the main body 201, and the protruding column 205 is inserted into the retaining spring 5, and one lead end of the retaining spring 5 is against the first retaining spring end positioning column 305, and the other lead end of the retaining spring 5 is against the second retaining spring end positioning column 204 provided on the lever 202.

[0040] Preferably, as Figure 7 and Figure 8 shown, the way that the connecting part 102 of the pushing component 1 is movably connected to the bottom case 3 is as follows: The connecting part 102 of the pushing component 1 has a first guide rail strip 104, and the bottom case 3 has a second guide rail strip 306, a first guide rail groove 308, and a second guide rail groove 309. A part of the bending part is placed in the first guide rail groove 308, the first guide rail strip 104 of the pushing component 1 is placed in the second guide rail groove 309, and the pushing component 1 can move along the second guide rail strip 306.

[0041] Preferably, a transverse stop wall 310 and a vertical stop wall 311 are further provided at the edge of the bottom case 3. A notch for placing the hand-pushing part 101 is opened at the intersection of the transverse stop wall 310 and the vertical stop wall 311; the movement of the hand-pushing part 101 is limited by the transverse stop wall 310; the pushing component 1 is further provided with a spring positioning convex block 105, and the spring positioning convex block 105 is provided with a spring positioning column 106; One end of the spring 6 is sleeved on the spring positioning column 106, and the other end of the spring 6 abuts against the inner wall surface of the vertical stop wall 311; the bottom case 3 has a third guide rail strip 307, and the bottom surface of the spring positioning convex block 105 is located on the top surface of the third guide rail strip 307.

[0042] Preferably, the hand-pushing part 101 is provided with a through hole 107 penetrating from top to bottom. The hand-pushing part 101 further has a hand-pushing convex block 108. A groove is opened on the hand-pushing convex block 108. The hand-pushing convex block 108 can be manually pushed to push the hand-pushing part 101 outwards relative to the bottom case 3.

[0043] A circuit breaker adopts the push-rotation mechanism of the circuit breaker described in any one of the above.

[0044] As Figure 9 and Figure 10As shown, adding the push-turn mechanism of the present invention to the circuit breaker can make the maintenance of the circuit breaker safer and improve the safety of the circuit breaker. The rotating shaft 4 of the circuit breaker extends out from the notch 302 of the bottom shell 3. When the rotating shaft 4 is in the electrical potential, it is located at the starting part of the notch 302. The toggle end of the lever member 202 is initially located at the starting part of the notch 302. When the circuit breaker needs to be repaired or the circuit breaker needs to be powered off, the hand-pushing part 101 of the push member 1 is pushed outward relative to the bottom shell 3. When the bent part of the hook 103 is forced to move, it pushes the pushed member 203 so that the toggle end of the lever member 202 rotates at a certain angle. When the toggle end of the lever member 202 rotates, the rotating shaft 4 is toggled to the end of the notch 302, so that the rotating shaft 4 is in the power-off potential, so that the circuit breaker is powered off. Even if the manual push switch of the circuit breaker is touched by mistake, the rotating shaft 4 is blocked by the toggle end of the lever 202 and cannot be moved to the potential, so the circuit breaker can still be in the power-off state, and the maintenance personnel are not easy to get an electric shock, thereby protecting the safety of the maintenance personnel. After the bar-shaped object is inserted into the through hole 107 of the hand-pushing part 101, the hand-pushing part 101 can be maintained in the state of being pushed outward, that is, the lever 202 of the rotating component is maintained at the end of the notch 302, and the rotating shaft 4 is also maintained at the end of the notch 302, that is, the rotating shaft 4 is maintained at the off potential, and the circuit breaker can be continuously in the power-off state, ensuring maintenance safety. The push-turn mechanism of the present invention is added, and the original manual push switch of the circuit breaker is added to realize the mechanical double safety protection of the circuit breaker, effectively guarantee electrical safety, reduce the risk of electric shock to the human body, and enhance the safety of the circuit breaker.

[0045] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pushing and rotating mechanism facilitating the latching of a circuit breaker, characterized in that: The invention comprises a pushing component (1), a rotating component (2) and a bottom shell (3); the pushing component (1) comprises a hand-pushing portion (101), a connecting portion (102) and a hook (103); the connecting portion (102) of the pushing component (1) is movably connected to the bottom shell (3); the hand-pushing portion (101) is located at the head end of the connecting portion (102); the hook (103) is located at the tail end of the connecting portion (102); and the tail of the hook (103) comprises a bending portion; The bottom shell (3) is provided with a fixing column (301), the rotating component (2) has a main body (201), the main body (201) of the rotating component (2) is provided with a sleeve hole, and the main body (201) of the rotating component (2) is sleeved on the fixing column (301) of the bottom shell (3) so that the rotating component (2) can rotate relative to the bottom shell (3); The column of the main body (201) is connected with a lever (202) and a pushed piece (203); the bottom shell (3) is provided with a notch (302); the moving end of the lever (202) is located at the notch (302); a part of the bent portion of the pull hook (103) is located behind the pushed piece (203); when the bent portion of the pull hook (103) is moved by force, it pushes the pushed piece (203) so that the moving end of the lever (202) rotates at a certain angle.

2. The push-rotation mechanism for facilitating the latching of a circuit breaker according to claim 1, characterized in that: The notch (302) provided on the bottom shell (3) is an arc-shaped notch, the toggle end of the toggle lever (202) is initially located at the start of the notch (302), and the toggle end of the toggle lever (202) is located at the end of the notch (302) after rotating a certain angle.

3. The push-rotation mechanism for facilitating the latching of a circuit breaker according to claim 1, characterized in that: The bottom shell (3) is provided with a first limiting column (303) for blocking the lever member (202), and the bottom shell (3) is provided with a second limiting column (304) for blocking the pushed member (203).

4. The push-rotation mechanism facilitating the latching of a circuit breaker according to claim 1, wherein: A first retaining spring end positioning column (305) is also provided on the rear side of the second limiting column (304) of the bottom shell (3); a convex column (205) is provided on the top of the main body (201); the convex column (205) is inserted into the retaining spring (5); one leading end of the retaining spring (5) abuts against the first retaining spring end positioning column (305); and the other leading end of the retaining spring (5) abuts against the second retaining spring end positioning column (204) provided on the lever member (202).

5. A push-rotation mechanism facilitating the latching of a circuit breaker according to claim 1, characterized in that: The connecting portion (102) of the push component (1) is movably connected to the bottom shell (3) in the following manner: the connecting portion (102) of the push component (1) has a first guide rail (104), the bottom shell (3) has a second guide rail (306), a first guide rail groove (308), and a second guide rail groove (309); part of the bent portion is inserted into the first guide rail groove (308), the first guide rail (104) of the push component (1) is inserted into the second guide rail groove (309), and the push component (1) can move along the second guide rail (306).

6. The push-rotation mechanism for facilitating the latching of a circuit breaker according to claim 1, wherein: A transverse retaining wall (310) and a vertical retaining wall (311) are further provided at the edge of the bottom case (3). A notch for placing the hand-pushing part (101) is formed at the intersection of the transverse retaining wall (310) and the vertical retaining wall (311); the movement of the hand-pushing part (101) is limited by the transverse retaining wall (310); the pushing member (1) is further provided with a spring positioning convex block (105), and the spring positioning convex block (105) is provided with a spring positioning post (106); one end of the spring (6) is sleeved on the spring positioning post (106), and the other end of the spring (6) abuts against the inner wall surface of the vertical retaining wall (311); the bottom case (3) has a third guide rail strip (307), and the bottom surface of the spring positioning convex block (105) is located on the top surface of the third guide rail strip (307).

7. The push-rotation mechanism for facilitating the latching of a circuit breaker according to claim 1, characterized in that: The hand-pushing part (101) is provided with a through hole (107) penetrating from top to bottom.

8. A push-rotation mechanism facilitating the latching of a circuit breaker according to claim 1, characterized in that: The hand-pushing part (101) further has a hand-pushing convex block (108).

9. The push-rotation mechanism for facilitating the latch of a circuit breaker according to claim 8, characterized in that: A groove is formed in the hand-pushing convex block (108).

10. A circuit breaker adopting the pushing and rotating mechanism according to any one of claims 1-9.

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