A circuit breaker locking mechanism

Abstract

The application provides a circuit breaker locking mechanism, which comprises a shell and a locking mechanism, the shell comprises a shell base, a first shell cover and a second shell cover, and a containing cavity is arranged in the shell, first and second through holes are formed in the shell, the first through hole is formed in the first shell cover, and the second through hole is formed in the second shell cover; the locking mechanism comprises a first spring, a second spring and a handle, the first and second springs are arranged in the containing cavity, the first spring is provided with a first protruding unit which is adapted to extend out of the first through hole, the second spring is provided with a second protruding unit which is adapted to extend out of the second through hole, and the handle is connected with the first and second springs; the locking mechanism further comprises a first accommodating groove and a second accommodating groove, and the first and second accommodating grooves are formed in the handle. In the embodiment of the application, the circuit breaker is installed in the cabinet more simply and safely by arranging the above locking structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breaker, in particular to a circuit breaker locking mechanism. BACKGROUND

[0002] In recent years, with the development of science and technology, circuit breakers are more and more widely used, especially with the rapid development of 5G industry, circuit breakers are more and more valued in miniaturization, intelligence and reliability, and enterprises have higher requirements for the practicality, safety and reliability of circuit breakers, and traditional circuit breakers cannot meet the requirements of enterprises. The existing circuit breaker locking member and spring are separately arranged, which leads to a complex structure of the circuit breaker and inconvenient use. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the defect that the structure of the circuit breaker is relatively complex due to the separate arrangement of the circuit breaker locking member and the spring in the prior art.

[0004] To this end, the present application provides a circuit breaker locking mechanism, comprising:

[0005] A housing comprising a housing seat, a first housing cover and a second housing cover, the housing seat being arranged in a cavity formed by the first housing cover and the second housing cover; a containing cavity is further arranged in the housing; a first through hole is formed in the housing, and the first through hole is in communication with the containing cavity;

[0006] A locking mechanism arranged in the containing cavity, the locking mechanism abutting against the housing seat; the locking mechanism is adapted to be inserted and pulled in the containing cavity to realize the opening and closing of the circuit breaker;

[0007] A first spring arranged in the containing cavity, the first spring extending in the insertion and pulling direction of the locking mechanism, and a gap is arranged between the first spring and the locking mechanism; the first spring is provided with a first protruding unit adapted to protrude out of the first through hole;

[0008] When the locking mechanism is in the opening position, the locking mechanism does not act on the first spring, and the first protruding unit protrudes out of the first through hole; when the locking mechanism is in the closing position, the locking mechanism abuts against the first spring, and the first protruding unit enters the containing cavity.

[0009] Optionally, the circuit breaker locking mechanism further comprises:

[0010] A second through hole is formed in the housing, and the second through hole is in communication with the containing cavity;

[0011] A second spring is arranged in the accommodating cavity, and the second spring extends along the plugging direction of the locking mechanism. The second spring is provided with a second protruding unit adapted to protrude out of the second through hole. One end of the second spring is in abutment with the locking mechanism.

[0012] When the locking mechanism is in the open position, the locking mechanism does not act on the second spring, and the second protruding unit protrudes out of the second through hole.

[0013] When the locking mechanism is between the open position and the closed position, the locking mechanism is in abutment with the second spring, and the second protruding unit enters the accommodating cavity.

[0014] When the locking mechanism is in the closed position, the locking mechanism does not act on the second spring, and the second protruding unit protrudes out of the second through hole from the accommodating cavity.

[0015] Optionally, the locking mechanism further comprises:

[0016] A handle is arranged in the accommodating cavity, and the handle is connected with the first spring and the second spring respectively. The handle is adapted to be plugged in or out of the accommodating cavity to open or close the circuit breaker.

[0017] Optionally, the first protruding unit comprises:

[0018] A vertical portion is arranged on one side of the first protruding unit close to the handle.

[0019] An inclined portion is arranged on one side of the first protruding unit away from the handle, and the inclined portion is connected with the vertical portion.

[0020] A first boss is arranged on one side of the handle close to the first protruding unit.

[0021] When the locking mechanism is in the open position, the first boss does not act on the first protruding unit, and the first protruding unit protrudes out of the first through hole. When the locking mechanism is in the closed position, the first boss is in abutment with the vertical portion. During the closing process of the locking mechanism, the first boss enters the accommodating cavity under the action of the inclined portion and the first through hole.

[0022] Optionally, the second protruding unit comprises:

[0023] A triangular portion adapted to protrude out of the second through hole.

[0024] A bent portion, one end of the bent portion is connected with the triangular portion, and the other end of the bent portion is in abutment with the first boss.

[0025] Optionally, the locking mechanism comprises:

[0026] A first displacement slot is arranged on one side of the first boss close to the second protruding unit.

[0027] When the locking mechanism is in the open position, the first boss does not act on the bent part, and the triangular part extends out of the second through hole.

[0028] When the locking mechanism moves from the open position to the closed position, the bent part abuts against the first boss, and the triangular part enters the accommodating cavity; when continuously moving, the bent part enters the first displacement slot and separates from the first boss, and the triangular part extends out of the accommodating cavity through the second through hole.

[0029] When the locking mechanism is in the closed position, the triangular part extends out of the second through hole.

[0030] Optionally, the first protruding unit is further provided with an extension part, the extension part is connected with the vertical part, and the extension part extends in a direction opposite to the plug-in direction; the extension part is inserted into the accommodating cavity through the handle.

[0031] Optionally, the handle is provided with a step structure on one side close to the first protruding unit, and the step structure is located below the first boss.

[0032] Optionally, the locking mechanism further comprises:

[0033] A second displacement slot is arranged on one end of the step structure away from the first protruding unit, and the extension part is inserted into the accommodating cavity through the second displacement slot.

[0034] Optionally, the first through hole is arranged on the first shell cover, the second through hole is arranged on the second shell cover, the first through hole is adapted to cooperate with the first protruding unit, and the second through hole is adapted to cooperate with the second protruding unit.

[0035] The technical scheme of the present application has the following advantages:

[0036] 1. The present application provides a circuit breaker locking mechanism, comprising a shell and a locking mechanism, the shell comprises a shell seat, a first shell cover and a second shell cover, the shell seat is arranged in the cavity formed by the first shell cover and the second shell cover, and the shell further comprises an accommodating cavity, a first through hole and a second through hole, the first through hole and the second through hole are in communication with the accommodating cavity; the locking mechanism is arranged in the accommodating cavity, and the locking mechanism abuts against the shell seat; the locking mechanism is adapted to be plugged in the accommodating cavity, so as to realize the opening and closing of the circuit breaker.

[0037] The locking member and the buckle of the existing circuit breaker are separately arranged, and each utilizes a spring to reset, resulting in complicated structure of the circuit breaker and complicated production and processing.

[0038] 2. The application provides a circuit breaker locking mechanism, which comprises a first spring, a second spring and a handle, the first spring is matched with the first through hole to act, the second spring is matched with the second through hole to act, and the handle is matched with the first spring and the second spring to realize opening and closing control of the circuit breaker.

[0039] 3. The application provides a circuit breaker locking mechanism, which is provided with a step structure, the step structure is provided with a second displacement slot, and the second displacement slot is arranged at one end of the step structure away from the first protruding unit. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of the application;

[0042] Figure 2 It is a schematic diagram of the structure of one side of the shell seat of the application;

[0043] Figure 3 It is a schematic diagram of the structure of the other side of the shell seat of the application;

[0044] Figure 4 It is a schematic diagram of the locking mechanism of the application;

[0045] Figure 5 It is a schematic diagram of the handle structure of the application;

[0046] Figure 6 It is a schematic diagram of the first spring structure of the application;

[0047] Figure 7The second spring structure of the present application is shown in the schematic view.

[0048] Explanation of reference numerals in the drawings of the embodiments:

[0049] 1, housing; 2, locking mechanism;

[0050] 11, housing seat; 12, first housing cover; 13, second housing cover; 14, first through hole; 15, second through hole;

[0051] 21, first spring; 22, second spring; 23, handle; 24, first accommodation slot; 25, second accommodation slot;

[0052] 211, first protruding unit;

[0053] 2111, vertical part; 2112, inclined part; 2113, first boss; 2114, protruding part;

[0054] 221, second protruding unit;

[0055] 2211, triangular part; 2212, bent part. DETAILED DESCRIPTION

[0056] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0057] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as they do not conflict with each other.

[0060] Embodiment

[0061] As Figures 1 to 3 shown, the embodiment provides a circuit breaker locking mechanism, which comprises a shell 1 and a locking mechanism 2, the shell 1 comprises a shell base 11, a first shell cover 12 and a second shell cover 13, the shell base 11 is arranged in the cavity surrounded by the first shell cover 12 and the second shell cover 13; a containing cavity is further arranged in the shell 1; a first through hole 14 and a second through hole 15 are formed on the shell 1, both the first through hole 14 and the second through hole 15 are communicated with the containing cavity; the locking mechanism 2 is arranged in the containing cavity, and the locking mechanism 2 abuts against the shell base 11; the locking mechanism 2 is adapted to be inserted and pulled out in the containing cavity, so as to realize the opening and closing of the circuit breaker.

[0062] The locking member and the buckle of the existing circuit breaker are separately arranged, and both of them are reset by their own springs, which leads to the complicated structure of the circuit breaker and the cumbersome production and processing. In the embodiment of the application, the new locking mechanism can quickly lock the working state of the circuit breaker, and improves the use safety of the circuit breaker.

[0063] Specifically, as Figure 4 shown, the locking mechanism 2 comprises a first spring 21 and a second spring 22, both the first spring 21 and the second spring 22 are parallelly and rotatably connected to the first shell cover 12, the first spring 21 is arranged in the containing cavity, the first spring 21 extends along the insertion and pulling direction of the locking mechanism, and a gap is arranged between the first spring 21 and the locking mechanism 2; the first spring 21 is provided with a first protruding unit 211, the first protruding unit 211 is adapted to protrude out of the first through hole 14; the second spring 22 is also arranged in the containing cavity, the second spring 22 extends along the insertion and pulling direction of the locking mechanism, the second spring 22 is provided with a second protruding unit 221, the second protruding unit 221 is adapted to protrude out of the second through hole 15, and one end of the second spring 22 abuts against the locking mechanism 2. In the embodiment of the application, the first spring 21 and the second spring 22 are arranged to replace the buckle and the spring of the original circuit breaker, so that the required components of the circuit breaker are reduced, the structure is simpler, and the service life of the circuit breaker can be increased by using the spring.

[0064] Further, the locking mechanism 2 further comprises a handle 23 arranged in the accommodating cavity, the handle 23 being connected with the first spring 21 and the second spring 22; the handle 23 is adapted to be inserted and pulled out in the accommodating cavity, and the circuit breaker is opened and closed.

[0065] When the circuit breaker is in the open state, the locking mechanism 2 is in the open position, the handle 23 does not act on the first spring 21, and the first protruding unit 211 protrudes out of the first through hole 14; the handle 23 also does not act on the second spring 22, and the second protruding unit 221 protrudes out of the second through hole 15.

[0066] When the circuit breaker is in the state of being installed in the cabinet and not being installed in place, the cabinet presses down the first protruding unit 211 and the second protruding unit 221, and the first protruding unit 211 and the second protruding unit 221 are both retracted into the accommodating cavity.

[0067] When the circuit breaker is in the closed state, the locking mechanism 2 is in the closed position, the first spring 21 returns to the original position, and the first protruding unit 211 protrudes out of the accommodating cavity; the handle 23 acts on the second spring 22, and the second protruding unit 221 is retracted into the accommodating cavity.

[0068] When the circuit breaker is in the tripped state, the handle 23 acts on the first spring 21, so that the first protruding unit 211 enters the accommodating cavity, and the second protruding unit 221 is still in the accommodating cavity.

[0069] Further, as shown in Figure 6 The first protruding unit 211 comprises a vertical part 2111, an inclined part 2112 and a first boss 2113, the vertical part 2111 is arranged on the side of the first protruding unit 211 close to the handle 23; the inclined part 2112 is arranged on the side of the first protruding unit 211 away from the handle 23, and the inclined part 2112 is connected with the vertical part 2111; and the first boss 2113 is arranged on the side of the handle 23 close to the first protruding unit 211.

[0070] In particular, the first protruding unit 211 is further provided with an extension part 2114, the extension part 2114 is connected with the vertical part 2111, and the extension part 2114 extends in the direction opposite to the insertion direction, and the extension part 2114 is inserted into the accommodating cavity through the handle 23.

[0071] Further, as shown in Figure 7As shown, the second protruding unit 221 comprises a triangular portion 2211 adapted to protrude out of the second through hole 15, and a bent portion 2212 connected with the triangular portion 2211, and the other end of the bent portion 2212 abuts against the first boss 2113.

[0072] Further, the handle 23 is provided with a step structure on the side close to the first protruding unit 211, and the step structure is located below the first boss 2113.

[0073] Further, as shown, Figure 5 As shown, the locking mechanism 2 comprises a first displacement slot 24 and a second displacement slot 25, the first displacement slot 24 is opened on the side of the first boss 2113 close to the second protruding unit 221, and the second displacement slot 25 is opened on the end of the step structure away from the first protruding unit 211, and the protruding portion 2114 is inserted into the accommodating cavity through the second displacement slot 25.

[0074] Specifically, when the circuit breaker is in the off state, the locking mechanism 2 is in the open position, the first protruding unit 211 and the second protruding unit 221 are not pressed down by the cabinet, the first protruding unit 211 protrudes out of the first through hole 14, and the first boss 2113 does not act on the first protruding unit 211; the second protruding unit 221 protrudes out of the second through hole 15, and the first boss 2113 abuts against the bent portion 2212 and is in the same horizontal plane, the handle 23 cannot be closed, and the locking mechanism 2 is in the open locking state.

[0075] Specifically, when the circuit breaker is in the off state, the locking mechanism 2 is in the open position, the first protruding unit 211 and the second protruding unit 221 are not pressed down by the cabinet, the first protruding unit 211 protrudes out of the first through hole 14, and the first boss 2113 does not act on the first protruding unit 211; the second protruding unit 221 protrudes out of the second through hole 15, and the first boss 2113 abuts against the bent portion 2212 and is in the same horizontal plane, the handle 23 cannot be closed, and the locking mechanism 2 is in the open locking state.

[0076] Specifically, when the circuit breaker is in the closed state, the locking mechanism 2 is in the closed position, the first protruding unit 211 is matched with the cabinet, the first protruding unit 211 returns to the original position, the first protruding unit 211 extends out of the first through hole 14, in the process of moving the handle 23, the extension part 2114 enters the second accommodation slot 25 and slides in the second accommodation slot 25 until the vertical part 2111 abuts against the first boss 2113, and the handle 23 completes the closing; the second protruding unit 221 is still in the state of being pressed by the cabinet, the second protruding unit 221 is retracted into the second through hole 15, the bent part 2212 is lower than the first boss 2113 and separated from the first boss 2113, and the bent part 2212 enters the first accommodation slot 24 and can slide in the first accommodation slot 24.

[0077] Specifically, when the circuit breaker is in the tripped state, the first protruding unit 211 extends out of the first through hole 14, when the handle 23 is pulled outward, the first boss 2113 acts on the extension part 2114 to make the first protruding unit 211 move downward and retract into the first through hole 14, and the circuit breaker is tripped from the cabinet; the second protruding unit 221 is still in the state of being pressed by the cabinet, the second protruding unit 221 is retracted into the second through hole 15, the bent part 2212 slides in the first accommodation slot 24 until the circuit breaker is separated from the cabinet, and the second protruding unit 221 returns to the original position.

[0078] Specifically, as shown in Figure 1 The first through hole 14 is arranged on the first shell cover 12, the second through hole 15 is arranged on the second shell cover 13, the first through hole 14 is adapted to be matched with the first protruding unit 211, and the second through hole 15 is adapted to be matched with the second protruding unit 221. Of course, the present embodiment does not limit the arrangement positions of the first through hole 14 and the second through hole 15, and those skilled in the art can change the arrangement positions of the first through hole 14 and the second through hole 15 according to actual conditions, as long as the same technical effects can be achieved.

[0079] The circuit breaker locking mechanism provided by the present application has the following working process in the process of being installed in the cabinet:

[0080] When the circuit breaker is not installed, the first and second protruding units 211 and 221 are both extended out of the shell 1, the bent part 2212 abuts against the first boss 2113, so that the handle 23 cannot be closed; when the circuit breaker is installed in the cabinet but not in place, the first and second protruding units 211 and 221 are both retracted into the shell 1, the extended part 2114 abuts against the step structure, so that the handle 23 still cannot be closed; when the circuit breaker is installed in place in the cabinet, the first protruding unit 211 is extended out of the shell 1, the second protruding unit 221 is retracted into the shell 1, the extended part 2114 slides in the second accommodation slot 25, and the bent part 2212 slides in the first accommodation slot 24, until the vertical part 2111 abuts against the first boss 2113, and the handle 23 is closed; when the circuit breaker is tripped, the handle 23 is pulled outward, the extended part 2114 acts on the first boss 2113, so that the first protruding unit 211 moves downward, the circuit breaker is tripped from the cabinet, and the second protruding unit 221 remains in the state of being retracted into the shell 1, until the circuit breaker is separated from the cabinet, the second protruding unit 221 returns to the original position and is extended out of the shell 1. Thus, the whole process of installing and tripping the circuit breaker is completed.

[0081] Obviously, the above embodiments are merely exemplary and not intended to limit the embodiments. Based on the description above, other variations or changes can be made by those skilled in the art. Here, all the embodiments are not enumerated, and the obvious changes or variations are still within the protection scope of the present application.

Claims

1. A circuit breaker locking mechanism, characterized in that, include: The housing (1) includes a housing base (11), a first housing cover (12) and a second housing cover (13). The housing base (11) is disposed in the cavity formed by the first housing cover (12) and the second housing cover (13). The housing (1) also has a receiving cavity. The housing has a first through hole (14) which communicates with the receiving cavity. A locking mechanism (2) is provided in the receiving cavity, and the locking mechanism (2) abuts against the housing (11); the locking mechanism (2) is adapted to be inserted and removed in the receiving cavity to realize the opening and closing of the circuit breaker; A first spring (21) is disposed in the receiving cavity. The first spring (21) extends along the insertion and extraction direction of the locking mechanism, and a gap is provided between the first spring (21) and the locking mechanism (2). The first spring (21) is provided with a first protruding unit (211), which is adapted to extend out of the first through hole (14). When the locking mechanism (2) is in the open position, the locking mechanism (2) does not act on the first spring (21), and the first protruding unit (211) extends out of the first through hole (14); when the locking mechanism (2) is in the closed position, the locking mechanism (2) abuts against the first spring (21), and the first protruding unit (211) enters the receiving cavity.

2. The circuit breaker locking mechanism according to claim 1, characterized in that, The circuit breaker locking mechanism further includes: A second through hole (15) is formed on the housing (1), and the second through hole (15) communicates with the receiving cavity; A second spring (22) is disposed in the receiving cavity. The second spring (22) extends along the insertion and extraction direction of the locking mechanism. The second spring (22) is provided with a second protruding unit (221). The second protruding unit (221) is adapted to extend out of the second through hole (15). One end of the second spring (22) abuts against the locking mechanism (2). When the locking mechanism (2) is in the open position, the locking mechanism (2) does not act on the second spring (22), and the second protruding unit (221) extends out of the second through hole (15). When the locking mechanism (2) is between the open and closed positions, the locking mechanism (2) abuts against the second spring (22), and the second protruding unit (221) enters the receiving cavity; When the locking mechanism (2) is in the closed position, the locking mechanism (2) does not act on the second spring (22), and the second protruding unit (221) extends outward from the receiving cavity through the second through hole (15).

3. The circuit breaker locking mechanism according to claim 2, characterized in that, The locking mechanism (2) further includes: A handle (23) is disposed in the receiving cavity. The handle (23) is connected to the first spring (21) and the second spring (22) respectively. The handle (23) is adapted to be inserted and removed in the receiving cavity to open and close the circuit breaker.

4. The circuit breaker locking mechanism according to claim 3, characterized in that, The first protrusion unit (211) includes: A vertical part (2111) is provided on the side of the first protruding unit (211) near the handle (23); An inclined portion (2112) is provided on the side of the first protruding unit (211) away from the handle (23), and the inclined portion (2112) is connected to the vertical portion (2111); The first protrusion (2113) is disposed on the side of the handle (23) near the first protrusion unit (211); When the locking mechanism (2) is in the open position, the first boss (2113) does not act on the first protruding unit (211), and the first protruding unit (211) extends out of the first through hole (14); when the locking mechanism (2) is in the closed position, the first boss (2113) abuts against the vertical part (2111), and during the closing process, the first boss (2113) enters the receiving cavity under the action of the inclined part (2112) and the first through hole (14).

5. The circuit breaker locking mechanism according to claim 4, characterized in that, The second protruding unit (221) includes: The triangular portion (2211) is adapted to extend out of the second through hole (15); The bending portion (2212) has one end connected to the triangular portion (2211) and the other end abutting against the first boss (2113).

6. The circuit breaker locking mechanism according to claim 5, characterized in that, The locking mechanism (2) includes: The first clearance groove (24) is formed on the side of the first boss (2113) near the second protruding unit (221); When the locking mechanism (2) is in the open position, the first boss (2113) does not act on the bent part (2212), and the triangular part (2211) extends out of the second through hole (15). When the locking mechanism (2) moves from the open position to the closed position, the bent part (2212) abuts against the first boss (2113), and the triangular part (2211) enters the receiving cavity; when it continues to move, the bent part (2212) enters the first relief groove (24), separates from the first boss (2113), and the triangular part (2211) extends outward from the receiving cavity through the second through hole (15); When the locking mechanism (2) is in the closed position, the triangular part (2211) extends out of the second through hole (15).

7. The circuit breaker locking mechanism according to claim 6, characterized in that, The first protruding unit (211) is also provided with a protrusion (2114), which is connected to the vertical part (2111) and extends in a direction opposite to the insertion and removal direction. The protrusion (2114) is inserted into the receiving cavity through the handle (23).

8. The circuit breaker locking mechanism according to claim 7, characterized in that, The handle (23) has a stepped structure on the side near the first protrusion unit (211), and the stepped structure is located below the first protrusion (2113).

9. The circuit breaker locking mechanism according to claim 8, characterized in that, The locking mechanism (2) further includes: The second clearance groove (25) is provided at one end of the stepped structure away from the first protrusion unit (211), and the protrusion (2114) is inserted into the receiving cavity through the second clearance groove (25).

10. The circuit breaker locking mechanism according to any one of claims 2 to 9, characterized in that, The first through hole (14) is provided in the first shell cover (12), and the second through hole (15) is provided in the second shell cover (13). The first through hole (14) is adapted to cooperate with the first protruding unit (211), and the second through hole (15) is adapted to cooperate with the second protruding unit (221).

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