Buckle device capable of preventing mis-insertion during connection and circuit breaker

Abstract

The utility model discloses a buckle device and a circuit breaker capable of preventing mis-insertion during connection, the buckle device capable of preventing mis-insertion during connection comprises a housing, a handle, a panel and a buckle, the handle, the panel and the buckle are arranged in the housing, and the housing is provided with a clamping groove penetrating through the inside and the outside of the housing; the panel is arranged close to the clamping groove; the handle is mounted on the panel in a sliding manner; the buckle is rotatably installed on the panel, the buckle is in contact fit with the handle and can rotate along with sliding of the handle, a flange extending into the clamping groove is arranged on the buckle, and the flange can extend out of or retract into the shell from the clamping groove when the buckle rotates. The buckle is rotationally mounted on the panel in the following manner; the circuit breaker comprises the buckling device capable of preventing wrong insertion during connection. The buckle device for preventing mis-insertion during connection and the circuit breaker are scientific and reasonable in structure, when the circuit breaker is connected, the buckle extends out of the shell, and the circuit breaker cannot be inserted into the case, so that the risk of electric shock of an operator in the process of connecting and inserting the case is avoided, and the safety of the circuit breaker is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-voltage electrical equipment, and particularly relates to a card buckle device for preventing mis-insertion of connection and a circuit breaker. Background Art

[0002] Molded case circuit breakers are divided into plug-in, fixed and withdrawable types according to the installation method. The use of plug-in circuit breakers can effectively improve the safety of the electrical equipment use industry. Plug-in circuit breakers are widely used in various electrical equipment, such as the 1U terminal circuit breakers used in 5G communication equipment. Plug-in circuit breakers can be easily installed and removed from the circuit in a plug-in manner.

[0003] In existing 1U circuit breakers, the system is driven to disconnect or connect by sliding a button. This method cannot meet some customer needs. In addition, sometimes the circuit can be connected even if the circuit breaker is not fully inserted, increasing the risk of electric shock to operators during the insertion of the circuit breaker into the chassis, which is not very safe. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present invention is to provide a circuit breaker that cannot be inserted into the chassis when the circuit breaker is connected, thereby effectively avoiding the risk of electric shock to the operator during the insertion process.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A buckle device for preventing mis-insertion of connection comprises a shell, a handle, a panel and a buckle arranged within the shell, wherein the shell is provided with a slot extending through the inside and outside of the shell; the panel is arranged near the slot; the handle is slidably mounted on the panel; the buckle is rotatably mounted on the panel, the buckle contacts and cooperates with the handle and can rotate as the handle slides, the buckle is provided with a flange extending into the slot, and the flange can extend from the slot or retract into the shell when the buckle rotates. The buckle is rotatably mounted on the panel in the following manner. A supporting rib is provided on the panel, and an arc groove that cooperates with the supporting rib is provided on the buckle. The buckle is rotatably mounted on the supporting rib via the arc groove and can rotate around the supporting rib. The buckle is provided with a cantilever and a stepped surface with a height difference with the cantilever; the cantilever is arranged on the side of the buckle away from the handle, and the cantilever is provided with a guide surface connected to the step surface; the step surface is arranged on the side of the buckle close to the handle and contacts the handle; the handle can slide along the step surface toward the guide surface until it contacts the guide surface, pushing the buckle to rotate; the handle can slide along the guide surface toward the step surface until it contacts the step surface, pushing the buckle to rotate.

[0007] When the handle slides toward the inside of the shell, the buckle rotates forward under the drive of the handle, so that the flange on the buckle extends out of the shell from the slot; when the handle slides toward the outside of the shell, the buckle rotates backward under the drive of the handle, so that the flange on the buckle retracts from the slot out of the shell.

[0008] The utility model also provides a circuit breaker, comprising the above-mentioned anti-connection mistaken insertion buckle device.

[0009] The anti-connection mistaken insertion buckle device and circuit breaker of the utility model have a scientific and reasonable structure. When the circuit breaker is connected, the buckle extends out of the housing and the circuit breaker cannot be inserted into the chassis, thereby avoiding the risk of electric shock to the operator during the connection and insertion process of the chassis and improving the safety of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The structure of the present invention will be described in further detail below with reference to the accompanying drawings.

[0011] Figure 1 This is a structural diagram of the anti-connection mistaken insertion buckle device and the circuit breaker of the present invention.

[0012] Figure 2 This is a structural schematic diagram of the anti-connection mistaken insertion buckle device and the circuit breaker in the disconnected state according to the present invention.

[0013] Figure 3 This is a structural schematic diagram of the anti-misinsertion buckle device and the circuit breaker in the connected state according to the present invention.

[0014] Figure 4 It is a structural schematic diagram of the shell of the present invention.

[0015] Figure 5 It is a structural schematic diagram of the panel of the present invention.

[0016] Figure 6 This is a schematic structural diagram of the handle of the present invention.

[0017] Figure 7 It is a structural schematic diagram of the buckle described in the utility model.

[0018] As shown in the figure: 1-handle, 11-bump, 2-panel, 21-support rib, 3-clip, 31-cantilever, 32-step surface, 33-arc groove, 34-flange, 35-guide surface, 36-transition slope, 4-shell, 41-slot. DETAILED DESCRIPTION

[0019] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The embodiments described are merely a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0020] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of this utility model. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose of the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of this utility model without substantially changing the technical content.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. It should be noted that the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. Example 1

[0022] like Figure 1-7 As shown, this embodiment provides a circuit breaker, which is a plug-in circuit breaker and includes a latch device for preventing mis-insertion of the connection. The latch device includes a housing 4 and a handle 1, a panel 2 and a latch 3 arranged in the housing 4.

[0023] like Figure 4 As shown, the housing 4 serves as a supporting base for various components of the circuit breaker. The housing 4 is hollow and can be inserted into or removed from the chassis. A slot 41 is provided on the housing 4 that passes through the inside and outside of the housing 4. The slot 41 is a square slot.

[0024] like Figure 5 As shown, the panel 2 is arranged in the housing 4 near the slot 41, and the panel 2 is located below the slot 41. A supporting rib 21 is provided on the panel 2, and the supporting rib 21 is cylindrical and parallel to the sliding surface of the handle 1.

[0025] like Figure 6 As shown, the handle 1 is slidably mounted on the panel 2 and is located below the slot 41. The handle 1 can slide toward or away from the slot 41. One end of the handle 1 is located outside the housing 4. To facilitate pulling or pushing the handle 1, the end of the handle 1 located outside the housing 4 is L-shaped, C-shaped, or U-shaped, etc., which is convenient for pulling.

[0026] like Figure 7 As shown, the buckle 3 is rotatably mounted on the panel 2. The buckle 3 contacts and cooperates with the handle 1 and can rotate as the handle 1 slides. A flange 34 extending into the slot 41 is provided on the buckle 3 (the top of the side away from the handle 1). The flange 34 is a square protrusion that cooperates with the slot 41. The flange 34 can extend from the slot 41 or retract into the housing 4 when the buckle 3 rotates.

[0027] like Figure 1-3 As shown, the buckle 3 is rotatably mounted on the panel 2 in the following manner: an arc groove 33 is provided on the buckle 3 to cooperate with the support rib 21 , and the buckle 3 is rotatably mounted on the support rib 21 through the arc groove 33 and can rotate around the support rib 21 .

[0028] like Figure 1-3 As shown, the buckle 3 contacts and mates with the handle 1 in the following manner: the buckle 3 is further provided with a cantilever 31 and a stepped surface 32 with a height difference from the cantilever 31; the cantilever 31 is provided on the side of the buckle 3 away from the handle 1 and below the flange 34; the cantilever 31 is provided with a guide surface 35 that communicates with the stepped surface 32, and the guide surface 35 is located below the stepped surface 32; the stepped surface 32 is provided on the side of the buckle 3 closer to the handle 1 and contacts the handle 1. Both the stepped surface 32 and the guide surface 35 are provided on the underside of the buckle 3 and can contact and mate with the upper surface of the handle 1 at one end within the housing 4.

[0029] like Figure 1-3As shown, the handle 1 can slide along the stepped surface 32 toward the guide surface 35 (near the slot 41) until it contacts the guide surface 35, pushing the buckle 3 to rotate. Driven by the handle 1, the buckle 3 rotates forward, causing the flange 34 on the buckle 3 to extend from the slot 41 to the outside of the housing 4. The handle 1 can also slide along the guide surface 35 toward the stepped surface 32 (away from the slot 41) until it contacts the stepped surface 32, pushing the buckle 3 to rotate. Driven by the handle 1, the buckle 3 rotates in the opposite direction, causing the flange 34 on the buckle 3 to retract from the slot 41 to the outside of the housing 4. A protrusion 11 is provided on the handle 1 to contact and cooperate with the buckle 3. The protrusion 11 can slide back and forth along the stepped surface 32 and the guide surface 35. The protrusion 11 is an inclined surface, and the height of the side facing the guide surface 35 is lower than the height of the side away from the guide surface 35.

[0030] Working principle:

[0031] When the circuit breaker is turned on, Figure 2 As shown, the handle 1 moves along the panel 2 toward the inside of the housing 4 of the circuit breaker. During the movement of the handle 1, the protrusion 11 of the handle 1 slides along the step surface 32 toward the guide surface 35 (close to the slot 41). When the protrusion 11 of the handle 1 moves onto the guide surface 35, due to the height difference between the guide surface 35 and the step surface 32, and the guide surface 35 is located on the lower side of the step surface 32, when the handle 1 continues to move onto the guide surface 35, it will push the buckle 3 to rotate. Driven by the handle 1, the buckle 3 rotates forward (counterclockwise), driving the flange 34 on the buckle 3 to rotate counterclockwise synchronously. At the same time, the step surface 32 becomes inclined, so that the flange 34 on the buckle 3 extends out of the housing 4 from the slot 41. At this time, the circuit breaker is in the following state. Figure 3 In the connected state shown in FIG. 1 , when the circuit breaker is to be inserted into the chassis, the flange 34 on the latch 3 interferes with the chassis, so that the circuit breaker cannot be inserted into the chassis, thereby avoiding the risk of electric shock to the operator during the connection and insertion process, and improving the safety of the circuit breaker.

[0032] If you want to insert the circuit breaker into the chassis, you need to keep the circuit breaker in the disconnected state. Figure 3 The displayed on state changes to Figure 2The operation of the disconnecting state shown is as follows: the handle 1 moves along the panel 2 toward the outside of the housing 4 of the circuit breaker. During the movement of the handle 1, the protrusion 11 of the handle 1 slides along the guide surface 35 toward the step surface 32 (away from the slot 41). When the protrusion 11 of the handle 1 moves onto the step surface 32, due to the height difference between the guide surface 35 and the step surface 32, the step surface 32 becomes inclined and then remains inclined. Therefore, when the handle 1 continues to move onto the step surface 32, it pushes the buckle 3 to rotate. The buckle 3 rotates in the opposite direction (clockwise) driven by the handle 1, driving the flange 34 on the buckle 3 to rotate clockwise synchronously, so that the flange 34 on the buckle 3 retracts into the slot 41 in the housing 4. At this time, the circuit breaker is in the state as shown in FIG. Figure 2 In the disconnected state shown in FIG. 1 , when the circuit breaker is to be inserted into the chassis, the circuit breaker can be smoothly inserted into the chassis because there is no interference of the flange 34 with the chassis. Example 2

[0033] In order to facilitate the stable sliding of the handle 1 and provide a stable guide for the sliding of the handle 1, this embodiment adds the following structure on the basis of embodiment 1:

[0034] One end of the panel 2 extends out of the housing 4 and provides a guide for the sliding of the handle 1. Two sliding grooves are provided on it along the sliding path of the handle 1. A sliding strip is provided at the bottom of the end of the handle 1 extending out of the housing 4, which slides with the sliding groove on the panel 2 to facilitate stable sliding of the handle 1. Example 3

[0035] In order to reduce the influence of the height difference between the stepped surface 32 and the guide surface 35 on the movement of the handle 1, the following structure is added on the basis of Example 1 or Example 2:

[0036] The step surface 32 and the guide surface 35 are transitioned by a transition slope 36, so that the handle 1 can move back and forth smoothly between the step surface 32 and the guide surface 35. During the back and forth movement of the handle 1 between the step surface 32 and the guide surface 35, the transition of the transition slope 36 makes the handle 1 move stably and reliably.

[0037] Other aspects of the present invention that are not described in detail are all conventional technologies known to those skilled in the art.

[0038] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements that are inherent to such process, method, article, or apparatus.

[0039] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A buckle device for preventing mis-insertion of a connection, comprising a housing (4) and a handle (1), a panel (2) and a buckle (3) arranged in the housing (4), characterized in that: The housing (4) is provided with a slot (41) that passes through the inside and outside of the housing (4); the panel (2) is arranged near the slot (41); the handle (1) is slidably mounted on the panel (2); the buckle (3) is rotatably mounted on the panel (2); the buckle (3) is in contact with the handle (1) and can rotate as the handle (1) slides; the buckle (3) is provided with a flange (34) that extends into the slot (41); the flange (34) can extend from the slot (41) or retract into the housing (4) when the buckle (3) rotates.

2. The anti-connection mistake insertion buckle device according to claim 1, characterized in that: A supporting rib (21) is provided on the panel (2), and an arc groove (33) cooperating with the supporting rib (21) is provided on the buckle (3). The buckle (3) is rotatably mounted on the supporting rib (21) through the arc groove (33) and can rotate around the supporting rib (21).

3. The anti-connection mistake insertion buckle device according to claim 1, characterized in that: The buckle (3) is provided with a cantilever (31) and a stepped surface (32) having a height difference with the cantilever (31); the cantilever (31) is provided on the buckle (3) at a side away from the handle (1), and the cantilever (31) is provided with a guide surface (35) communicating with the stepped surface (32); the stepped surface (32) is provided on the buckle (3) at a side close to the handle (1) and in contact with the handle (1); the handle (1) can slide along the stepped surface (32) toward the guide surface (35) until it contacts the guide surface (35), thereby pushing the buckle (3) to rotate; the handle (1) can slide along the guide surface (35) toward the stepped surface (32) until it contacts the stepped surface (32), thereby pushing the buckle (3) to rotate.

4. The anti-connection mistake insertion buckle device according to claim 3, characterized in that: The step surface (32) and the guide surface (35) are transitioned via a transition slope (36).

5. The anti-connection mistake insertion buckle device according to claim 3, characterized in that: The stepped surface (32) and the guide surface (35) are both arranged on the lower side of the buckle (3) and can both be in contact with and fit with the upper surface of the handle (1) at one end inside the housing (4).

6. The anti-connection mistake insertion buckle device according to claim 5, characterized in that: A protrusion (11) is provided on the handle (1) and is in contact with the buckle (3). The protrusion (11) can slide back and forth along the stepped surface (32) and the guide surface (35).

7. The anti-connection mistaken insertion buckle device according to claim 1, characterized in that: One end of the handle (1) is located outside the shell (4), and correspondingly, one end of the panel (2) also extends out of the shell (4) and provides a guide for the sliding of the handle (1). Two sliding grooves are provided on it along the sliding direction of the handle (1), and a sliding strip is provided at the bottom of the end of the handle (1) extending out of the shell (4) to slide with the sliding groove on the panel (2).

8. The anti-connection mistake insertion buckle device according to claim 7, characterized in that: One end of the handle (1) located outside the housing (4) is L-shaped.

9. The anti-connection mistake insertion buckle device according to claim 1, characterized in that: When the handle (1) slides toward the inside of the housing (4), the buckle (3) rotates forward under the drive of the handle (1), so that the flange (34) on the buckle (3) extends from the slot to the outside of the housing (4); when the handle (1) slides toward the outside of the housing (4), the buckle (3) rotates in the opposite direction under the drive of the handle (1), so that the flange (34) on the buckle (3) retracts from the slot to the outside of the housing (4).

10. A circuit breaker, characterized in that: The invention comprises the anti-connection mistake insertion buckle device according to any one of claims 1 to 9.

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