False pull-out prevention buckle device and circuit breaker

Abstract

The utility model discloses a device for preventing a buckle from being pulled out by mistake. The device comprises a shell which can be inserted into or pulled out of a case, and a panel, a handle and a buckle which are arranged in the shell, wherein a clamping groove penetrating through the inside and the outside of the shell is formed in the side wall of the shell; the panel is close to the clamping groove and is arranged in the shell; the handle is arranged on the panel in a sliding manner; the buckle is installed in the shell in a sliding mode in the direction of the clamping groove, and the included angle between the face, back to the case, of the buckle and the outer side face, facing the buckle, of the shell is smaller than or equal to 90 degrees. When the handle slides into the shell, the buckle can extend out of the shell from the clamping groove under the action of external force; when the handle slides out of the shell, the buckle can be driven by the handle to retract into the shell. According to the utility model, when the circuit breaker is inserted into the cabinet and is switched on, the buckle extends out of the shell and is clamped in the preset groove of the cabinet, so that the circuit breaker cannot be pulled out of the cabinet in a switched-on state, the risk of electric shock of an operator in the process of switching on and switching off the cabinet is effectively 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 buckle device and a circuit breaker to prevent mis-pulling. Background Art

[0002] According to the installation method, molded case circuit breakers can be divided into plug-in, fixed and withdrawable types. The use of plug-in circuit breakers can effectively improve the safety of the electrical equipment use industry. At present, 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, a sliding button can be used to drive the system to disconnect or connect the circuit breaker. However, this type of circuit breaker cannot meet certain customer needs. Sometimes, after the circuit breaker is inserted into the cabinet and connected, it can also be pulled out. Pulling the circuit breaker out of the chassis when it is energized poses a risk of electric shock to the operator. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present invention is to provide an anti-accidental removal latch device and a circuit breaker, which can prevent the circuit breaker from being removed from the chassis when the circuit breaker is inserted into the chassis and connected, thereby avoiding the risk of electric shock to the operator during the connection and removal of the chassis.

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

[0006] A device for preventing accidental removal of a clip comprises a shell capable of being inserted into or removed from a chassis, and a panel, a handle and a clip arranged within the shell: a clip slot extending through the inside and outside of the shell is provided on a side wall of the shell; the panel is arranged within the shell near the clip slot; the handle is slidably arranged on the panel; the clip is slidably installed within the shell in the direction of the clip slot, with the angle between the surface of the clip facing away from the chassis and the outer side surface of the shell it faces being less than or equal to 90°; when the handle slides into the shell, the clip can extend from the clip slot to the outside of the shell under the action of an external force; when the handle slides out of the shell, the clip can be retracted into the shell under the drive of the handle.

[0007] Furthermore, in order to facilitate the insertion of the circuit breaker into the chassis, the buckle can automatically pop out of the shell and be stuck in a preset groove of the chassis to prevent the circuit breaker from being accidentally pulled out. The anti-accidental-pulling buckle device also includes an elastic member, which is arranged between the buckle and the panel or between the buckle and the shell; when the handle slides into the shell, the buckle can extend out of the shell from the slot under the action of the elastic force of the elastic member; when the handle slides out of the shell, the buckle can be driven by the handle to overcome the elastic force of the elastic member and retract into the shell.

[0008] Furthermore, the buckle is provided with a positive bevel facing the chassis, and correspondingly, the handle is provided with a reverse bevel facing away from the chassis. The positive bevel and the reverse bevel slide together. When the handle slides out of the shell, the reverse bevel contacts the positive bevel and slides relative to it. The handle pushes the buckle through the reverse bevel to slide away from the slot, so that the buckle retracts into the shell.

[0009] Furthermore, a sliding slope facing the chassis is provided on the portion where the clip extends out of the shell, so that when the circuit breaker is inserted into the chassis, the clip can be retracted into the shell under the push of the chassis until it is aligned with the preset groove in the chassis and then extends into the preset groove of the chassis.

[0010] Furthermore, the elastic member is a compression spring, a tension spring, a spring sheet, etc.

[0011] Furthermore, the angle between the surface of the clip facing away from the chassis and the outer side surface of the shell it faces is equal to 90°, that is, a straight surface, to ensure that when the circuit breaker is in the on state, the straight surface can be restricted by the groove in the chassis, so that the clip will not be pressed into the shell by the chassis, thereby preventing the circuit breaker from being pulled out of the chassis when it is in the on state.

[0012] In addition, the utility model also provides a circuit breaker, which includes the above-mentioned anti-mistaken-pulling buckle device.

[0013] The utility model can make the buckle extend out of the shell and be stuck in the preset groove of the chassis when the circuit breaker is inserted into the chassis and turned on, so that the circuit breaker cannot be pulled out of the chassis when it is turned on, effectively avoiding the risk of electric shock to the operator during the process of connecting and pulling out the chassis, and improving the safety of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The structure of the present invention will be described in further detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the anti-mistaken-pulling buckle device and the circuit breaker of the present invention.

[0016] Figure 2 It is a side view of the anti-mistaken-removal buckle device and the circuit breaker of the present invention.

[0017] Figure 3 This is a structural schematic diagram of the anti-mistaken-removal buckle device and the circuit breaker in the connected state according to the present invention.

[0018] Figure 4 This is a structural schematic diagram of the anti-mistaken-pullout buckle device and the circuit breaker in the disconnected state according to the present invention.

[0019] Figure 5 This is a schematic structural diagram of the handle of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the buckle described in the utility model.

[0021] As shown in the figure: 1-handle, 11-reverse slope, 2-panel, 3-clip, 31-positive slope, 32-sliding slope, 4-elastic part, 5-shell. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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

[0025] like Figure 1-6As shown, this embodiment provides a circuit breaker, which includes an anti-mistaken-pullout buckle device, and the anti-mistaken-pullout buckle device includes a housing 5, and a panel 2, a handle 1 and a buckle 3 arranged in the housing 5.

[0026] The housing 5 is a flat rectangular box body, which serves as the mounting base of the circuit breaker and can be inserted into or removed from the chassis. A slot is provided on the side wall of the housing 5 that passes through the inside and outside of the housing 5. In this embodiment, when the circuit breaker is inserted into the chassis, the slot faces downward.

[0027] The panel 2 is disposed in the housing 5 close to the card slot and is parallel to the side wall of the housing 5 where the card slot is located.

[0028] The handle 1 is slidably arranged on the panel 2; the handle 1 and the panel 2 are slidably connected via grooves and protrusions that are arranged on the contact surfaces of the two and slidably fit together.

[0029] The buckle 3 is slidably installed in the shell 5 in the direction of the slot. The buckle 3 is slidably installed in the preset slide groove in the shell 5. In this embodiment, the slide groove is vertically arranged. The buckle 3 can slide back and forth along the slide groove in the direction away from or close to the slot. The angle between the surface of the buckle 3 facing away from the chassis and the outer side surface of the shell 5 it faces is 90°, that is, a straight surface, to ensure that when the circuit breaker is in the on state, the straight surface can be restricted by the groove in the chassis, so that the buckle 3 will not be pressed into the shell 5 by the chassis, thereby preventing the circuit breaker from being pulled out of the chassis when it is in the on state.

[0030] The buckle 3 is provided with a positive bevel 31 facing the chassis, and correspondingly, the handle 1 is provided with a reverse bevel 11 facing away from the chassis. One end of the handle 1 located inside the circuit breaker extends to the side of the buckle 3 facing the chassis, and the reverse bevel 31 is provided on this end. The positive bevel 31 and the reverse bevel 11 slide in cooperation. When the handle 1 slides out of the housing 5, the reverse bevel 11 contacts the positive bevel 31 and slides relative to each other. The handle 1 pushes the buckle 3 to slide away from the slot through the reverse bevel 11, so that the buckle 3 is retracted into the housing 5.

[0031] In addition, the portion where the clip 3 extends out of the housing 5 is provided with an inclined sliding surface 32 facing the chassis, so that when the circuit breaker is inserted into the chassis, the clip 3 can be retracted into the housing 5 under the push of the chassis until it is aligned with the preset groove in the chassis and then extends into the preset groove of the chassis.

[0032] Working principle:

[0033] After the circuit breaker is inserted into the chassis and locked in place:

[0034] When the handle 1 slides into the housing 5 to turn on the circuit breaker, the clip 3 can extend from the slot outside the housing 5 under the action of external force (the clip 3 slides downward under its own weight) and is stuck in a preset groove in the chassis. The surface of the clip 3 facing away from the chassis cooperates with the groove of the chassis. At this time, when the housing 5 is pulled outward laterally, the clip 3 is blocked by the groove of the chassis, and the housing 5 is difficult to be pulled out when it is turned on.

[0035] When the handle 1 slides out of the housing 5 to disconnect the circuit breaker, a reverse bevel 11 is provided on the handle 1 to contact the positive bevel 31 and slide relative to each other. During the relative sliding process, the handle 1 pushes the buckle 3 to slide away from the slot through the reverse bevel 11, so that the buckle 3 retracts into the housing 5. When the handle 1 completes the circuit breaker disconnection, the buckle 3 is completely retracted into the housing 5. At this time, the circuit breaker can be pulled out. Example 2

[0036] To facilitate the automatic ejection of the buckle 3 from the housing 5 and the locking of the buckle 3 in the preset groove of the chassis after the circuit breaker is inserted into the chassis, thereby preventing the circuit breaker from being accidentally pulled out, the following settings are made in this embodiment relative to the first embodiment:

[0037] First, an elastic member 4 is added to the anti-mistaken-pullout buckle device. In addition, there is no special restriction on the position and direction of the card slot, which can be set on any one of the four side walls of the shell.

[0038] The elastic member 4 is a compression spring, a tension spring, a spring sheet, etc. The elastic member 4 is arranged between the buckle 3 and the panel 2 or between the buckle 3 and the shell 5 (when the elastic member 4 is arranged between the buckle 3 and the panel 2, a compression spring or a spring sheet is selected; when the elastic member 4 is arranged between the buckle 3 and the shell 5, a tension spring is selected).

[0039] The working principle is:

[0040] After the circuit breaker is inserted into the chassis and locked in place:

[0041] When the handle 1 slides into the housing 5 to turn on the circuit breaker, the clip 3 can extend from the slot outside the housing 5 under the elastic force of the elastic member 4 and be stuck in a preset groove in the chassis. The surface of the clip 3 facing away from the chassis cooperates with the groove of the chassis. At this time, when the housing 5 is pulled outward laterally, the clip 3 is blocked by the groove of the chassis, and the housing 5 is difficult to be pulled out when it is turned on.

[0042] When the handle 1 slides out of the housing 5 to disconnect the circuit breaker, a reverse bevel 11 is provided on the handle 1 to contact the positive bevel 31 and slide relative to each other. During the relative sliding process, the handle 1 pushes the buckle 3 to slide away from the slot through the reverse bevel 11, so that the buckle 3 overcomes the elastic force of the elastic member 4 and retracts into the housing 5. When the handle 1 completes the circuit breaker disconnection, the buckle 3 is completely retracted into the housing 5, and the circuit breaker can be pulled out. Example 3

[0043] Compared with Embodiments 1 and 2, this embodiment provides a structure in which the position and direction of the card slot are not particularly restricted and the elastic member 4 is not used. The configuration is as follows:

[0044] The buckle 3 is provided with an inclined surface 1 facing the chassis, and correspondingly, the handle 1 is provided with an inclined surface 2 facing the chassis. The inclined surface 1 and the inclined surface 2 are slidably matched. When the handle 1 slides into the shell 5, the handle 1 can push the buckle 3 to slide out of the shell 5 through the inclined surface 2.

[0045] Its working principle is:

[0046] After the circuit breaker is inserted into the chassis and locked in place:

[0047] When the handle 1 slides into the shell 5 to turn on the circuit breaker, the second bevel contacts the first bevel and slides relative to each other during the sliding process of the handle 1. The handle 1 pushes the buckle 3 to slide toward the card slot through the second bevel, so that the buckle 3 extends out of the shell 5 and is locked into a preset groove in the chassis for limiting. The surface of the buckle 3 facing away from the chassis cooperates with the groove of the chassis. At this time, when the shell 5 is pulled outward laterally, the buckle 3 is blocked by the groove of the chassis, and the shell 5 is difficult to be pulled out when it is turned on.

[0048] When the handle 1 slides out of the housing 5 to disconnect the circuit breaker, the reverse bevel 11 provided on the handle 1 contacts the positive bevel 31 and slides relative to each other. During the relative sliding process, the handle 1 pushes the buckle 3 to slide away from the slot through the reverse bevel 11, so that the buckle 3 is inside the housing 5. When the handle 1 completes the circuit breaker disconnection, the buckle 3 is completely retracted into the housing 5. At this time, the circuit breaker can be pulled out.

[0049] Other aspects of the present invention that are not described in detail are all conventional technologies known to those skilled in the art.

[0050] 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.

[0051] 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 accidental removal, comprising a housing (5) capable of being inserted into or removed from a chassis, and a panel (2), a handle (1) and a buckle (3) arranged in the housing (5), characterized in that: A slot is provided on the side wall of the shell (5) and passes through the inside and outside of the shell (5); the panel (2) is arranged near the slot; the handle (1) is slidably arranged on the panel (2); the buckle (3) is slidably installed in the shell (5) in the direction of the slot, and the angle between the surface of the buckle (3) facing away from the chassis and the outer side surface of the shell it faces is less than or equal to 90°; when the handle (1) slides into the shell (5), the buckle (3) can extend from the slot to the outside of the shell (5) under the action of an external force; when the handle (1) slides out of the shell (5), the buckle (3) can be retracted into the shell (5) under the drive of the handle (1).

2. The anti-mistaken-removal buckle device according to claim 1, characterized in that: It also includes an elastic member (4), wherein the elastic member (4) is arranged between the buckle (3) and the panel (2) or between the buckle (3) and the housing (5); When the handle (1) slides into the housing (5), the buckle (3) can extend from the housing (5) out of the housing (5) under the elastic force of the elastic member (4); When the handle (1) slides out of the housing (5), the buckle (3) can be driven by the handle (1) to overcome the elastic force of the elastic member (4) and retract into the housing (5).

3. The anti-mistaken-removal buckle device according to claim 1, characterized in that: The buckle (3) is provided with a positive bevel (31) facing the chassis, and correspondingly, the handle (1) is provided with a negative bevel (11) facing away from the chassis. The positive bevel (31) and the negative bevel (11) are slidably matched. When the handle (1) slides out of the shell (5), the negative bevel (11) contacts the positive bevel (31) and slides relative to it. The handle (1) pushes the buckle (3) to slide away from the slot through the negative bevel (11), so that the buckle (3) is retracted into the shell (5).

4. The anti-mistaken-removal buckle device according to claim 1, characterized in that: The portion of the buckle (3) extending out of the housing (5) is provided with an inclined sliding surface (32) facing the chassis.

5. The anti-mistaken-removal buckle device according to claim 2, characterized in that: The elastic member (4) is a compression spring, a tension spring, or a spring sheet.

6. A circuit breaker, characterized in that: It includes the anti-mistaken-pulling buckle device according to any one of claims 1 to 5.

Images