A leakage protector with anti-rotation line clamp

Abstract

The utility model provides a kind of leakage protector with anti-rotation wire clamp, including shell and the wire clamp being set to the tail part of shell, the wire clamp end is provided with the plug-in block inserted into shell, the shell is provided with the anti-drop slot for plug-in block card, the wire clamp is with shell between being provided with the positioning mechanism for preventing the circumferential rotation of wire clamp, the leakage protector with anti-rotation wire clamp can overcome the interface looseness of leakage protector in prior art, so as to cause the defect of leakage, short circuit even electric shock accident.

Description

Technical Field

[0001] This utility model relates to the field of residual current device (RCD) technology, specifically to an RCD with an anti-switching clip. Background Technology

[0002] The core function of a residual current device (RCD) is to prevent electric shock and electrical fires. It also has multiple functions such as monitoring circuit insulation and protecting equipment safety. In the current technology, an output power cord extends from the RCD. Since the power cord is made of flexible PVC material, it cannot be well positioned inside the casing and is often rotated inside the casing. This may cause the RCD's interface to loosen, thereby causing leakage, short circuit, or even electric shock accidents. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the existing leakage current protection device, which is loose at the interface, thus causing leakage, short circuit or even electric shock accidents, and thus provide a leakage current protection device with anti-rotation clamp to prevent the interface from rotating.

[0004] Therefore, this utility model provides a leakage current protector with an anti-rotation wire clamp, including a housing and a wire clamp disposed at the tail of the housing. The end of the wire clamp is provided with a plug-in block that can be inserted into the housing. The housing is provided with an anti-disengagement groove for the plug-in block to be inserted into. A positioning mechanism is provided between the wire clamp and the housing to prevent the wire clamp from rotating circumferentially.

[0005] Furthermore: the positioning mechanism includes a positioning rib disposed on one side of the plug-in block or the housing and a positioning groove disposed on the other side and adapted to the positioning rib, and the housing includes a lower housing and an upper housing covering the lower housing.

[0006] Furthermore: the positioning rib is disposed on the housing, the positioning groove is disposed on the wire clip, the positioning rib includes a first rib disposed on the upper housing position and a second rib disposed on the lower housing position, the positioning groove includes a first groove and a second groove disposed on the upper and lower ends of the plug block, when the upper housing and the lower housing are closed, the first rib is engaged in the first groove and the second rib is engaged in the second groove.

[0007] Furthermore: the housing is provided with a first arc-shaped column and a second arc-shaped column arranged opposite each other on the left and right, and the anti-detachment groove is formed between the first arc-shaped column and the second arc-shaped column.

[0008] Furthermore, the housing is also provided with a wire clamping block for fixing the wire. The wire clamping block is located on the side of the plug block facing away from the wire clip. The wire clamping block is provided with at least one wire clamping rib. The wire clamping block is provided with an assembly screw hole for positioning the wire clamping block. The housing is provided with a support base. The support base is provided with a connecting hole that communicates with the assembly screw hole. The fastening screw can pass through the assembly screw hole and the connecting hole in sequence to fix the wire clamping block above the support base.

[0009] Furthermore, the pressure ribs are provided with clearance ramps on both sides.

[0010] Furthermore, the housing is also provided with a button assembly, which includes a base and a test button positioned above the base. A cover is also provided above the test button, and a test spring is provided between the test button and the cover. A positioning post for positioning the test spring is provided inside the test button.

[0011] Furthermore: the positioning post includes a positioning core for the test spring to be sleeved on its outer periphery and a wrapping post surrounding the test spring, wherein the wrapping post is provided with at least one clearance groove.

[0012] The technical solution of this utility model has the following advantages:

[0013] 1. The present invention provides a leakage current protector with an anti-rotation clamp. The plug block at the end of the clamp is locked in the anti-detachment groove. The anti-detachment groove can only prevent the plug block from detaching from the anti-detachment groove, but cannot restrict the plug block from rotating in the anti-detachment groove. Through the setting of the positioning mechanism, it can effectively cooperate with the anti-detachment groove to fix the plug block and prevent the plug block from rotating circumferentially.

[0014] 2. The present invention provides a leakage current protector with an anti-rotation clamp. The housing is divided into an upper shell and a lower shell. The anti-detachment groove is integrally injection molded with the lower shell. During installation, the plug block is placed in the plug groove, and then the upper shell is placed on top of the lower shell. At this time, the positioning rib will be inserted into the positioning groove, thereby effectively restricting the plug block from rotating in a circle in the anti-detachment groove, thereby improving the user's experience of using the product. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 An exploded view of the internal structure of a residual current device (RCD).

[0017] Figure 2 A schematic diagram of the residual current device (RCD) after removing the top casing.

[0018] Figure 3 This is a cross-sectional view of the connection structure between the upper shell, lower shell, and wire clips.

[0019] Figure 4 This is a structural diagram of the line card;

[0020] Figure 5 This is a schematic diagram of the tension / compression block structure;

[0021] Figure 6 This is a cross-sectional structural diagram of a residual current device (RCD).

[0022] Figure 7 for Figure 6 Enlarged view of section A;

[0023] Figure 8 for Figure 6 Enlarged view of section B;

[0024] Figure 9 This is a schematic diagram of the test button and test spring.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Shell; 11. Lower shell; 12. Upper shell; 13. First arc-shaped column; 14. Second arc-shaped column; 2. Wire clamp; 21. Connector block; 3. Anti-detachment groove; 4. Positioning mechanism; 41. Positioning rib; 411. First rib; 412. Second rib; 42. Positioning groove; 421. First groove; 422. Second groove; 5. Wire pressing block; 51. Wire pressing rib position; 52. Assembly screw hole; 53. Clearance slope; 6. Support base; 61. Connecting hole; 7. Base; 71. Test button; 72. Cover; 73. Test spring; 74. Positioning post; 741. Positioning core; 742. Wrapping post; 75. Clearance groove. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Example

[0032] This embodiment provides a leakage current protector with an anti-rotation clamp, including a housing 1 and a clamp 2 disposed at the tail of the housing 1. The end of the clamp 2 is provided with a plug block 21 that is inserted into the housing 1. The housing 1 is provided with an anti-disengagement groove 3 for the plug block 21 to be inserted into. A positioning mechanism 4 is provided between the clamp 2 and the housing 1 to prevent the clamp 2 from rotating circumferentially.

[0033] The specific improvements mentioned above are as follows: Figure 1 and Figure 2 As shown, the plug-in block 21 at the end of the wire clip 2 is locked in the anti-detachment groove 3. The anti-detachment groove 3 can only prevent the plug-in block 21 from detaching from the anti-detachment groove 3, but cannot restrict the plug-in block 21 from rotating in the anti-detachment groove 3. With the setting of the positioning mechanism 4, it can effectively cooperate with the anti-detachment groove 3 to fix the plug-in block 21 and prevent the plug-in block 21 from rotating circumferentially.

[0034] Based on the above embodiments: the positioning mechanism 4 includes a positioning rib 41 disposed on one of the plug-in block 21 or the housing 1 and a positioning groove 42 disposed on the other and adapted to the positioning rib 41. The housing 1 includes a lower housing 11 and an upper housing 12 covering the lower housing 11.

[0035] The specific improvements mentioned above are as follows: Figures 1-3As shown, the housing 1 is divided into an upper housing 12 and a lower housing 11. The anti-detachment groove 3 is integrally injection molded with the lower housing 11. During the installation process, the plug-in block 21 is placed into the plug-in groove, and then the upper housing 12 is placed on top of the lower housing 11. At this time, the positioning rib 41 will be inserted into the positioning groove 42, thereby effectively restricting the plug-in block 21 from rotating in a circle within the anti-detachment groove 3, thereby improving the user's experience of using the product.

[0036] Based on the above embodiments: the positioning rib 41 is disposed on the housing 1, the positioning groove 42 is disposed on the wire clip 2, the positioning rib 41 includes a first rib 411 disposed on the upper housing 12 and a second rib 412 disposed on the lower housing 11, the positioning groove 42 includes a first groove 421 and a second groove 422 disposed on the upper and lower ends of the plug-in block 21, when the upper housing 12 and the lower housing 11 are closed, the first rib 411 is engaged in the first groove 421 and the second rib 412 is engaged in the second groove 422.

[0037] The specific improvements mentioned above are as follows: Figure 3 and Figure 4 As shown, a second rib 412 is provided at the lower shell 11, a second rib 412 is provided at the upper shell 12, and a first rib 411 is provided at the lower shell 11. When the plug-in block 21 on the wire clip 2 is inserted into the anti-detachment groove 3, the first rib 411 will be adapted to the first groove 421, and the second rib 412 will be adapted to the second groove 422. Through the setting of the first groove 421 and the second groove 422, the positions of the upper and lower ends of the plug-in block 21 can be effectively fixed to prevent it from rotating in the anti-detachment groove 3.

[0038] Based on the above embodiments: the housing 1 is provided with a first arc-shaped column 13 and a second arc-shaped column 14 arranged opposite to each other, and the anti-detachment groove 3 is formed between the first arc-shaped column 13 and the second arc-shaped column 14.

[0039] The specific improvements mentioned above are as follows: Figure 2 As shown, a first arc-shaped column 13 and a second arc-shaped column 14 are respectively arranged on both sides of the anti-detachment groove 3. By setting the first arc-shaped column 13 and the second arc-shaped column 14, the space of the anti-detachment groove 3 can be effectively limited, and the plug-in block 21 is limited within the anti-detachment groove 3.

[0040] Based on the above embodiments: the housing 1 is further provided with a wire clamping block 5 for fixing the wire. The wire clamping block 5 is located on the side of the plug block 21 facing away from the wire clip 2. The wire clamping block 5 is provided with at least one wire clamping rib 51. The wire clamping block 5 is provided with an assembly screw hole 52 for positioning the wire clamping block 5. The housing 1 is provided with a support base 6. The support base 6 is provided with a connecting hole 61 that communicates with the assembly screw hole 52. The fastening screw can pass through the assembly screw hole 52 and the connecting hole 61 in sequence to fix the wire clamping block 5 above the support base 6.

[0041] Based on the above embodiment: the pressure rib position 51 is provided with clearance slopes 53 on both sides.

[0042] The specific improvements mentioned above are as follows: Figures 5-7 As shown, the wire clamping block 5 is provided with a wire clamping rib 51, a clearance ramp 53, and a mounting screw hole 52. A wire clamping groove is provided on the support base 6. When the wire clamping block 5 is fixed on the support base 6 by two mounting screws and the wire is clamped, the wire clamping rib 51 will press the wire into the wire clamping groove. The wire is in a bent state. When the wire is bent, it will bend up along the clearance ramps 53 on both sides. In this way, the wire assembly can be firmly pressed on the support base 6.

[0043] Based on the above embodiments: a button assembly is also provided inside the housing 1. The button assembly includes a base 7 and a test button 71 positioned above the base 7. A cover 72 is also provided above the test button 71. A test spring 73 is provided between the test button 71 and the cover 72. A positioning post 74 for positioning the test spring 73 is provided inside the test button 71.

[0044] Based on the above embodiments: the positioning post 74 includes a positioning core 741 for the test spring 73 to be sleeved on its outer periphery and a wrapping post 742 surrounding the test spring 73, wherein the wrapping post 742 is provided with at least one clearance groove 75.

[0045] The specific improvements mentioned above are as follows: Figure 8 and Figure 9 As shown, during installation, the test spring 73 is fitted around the outer periphery of the positioning core 741, and the wrapping post 742 is wrapped around the outer periphery of the test spring 73. Two clearance grooves 75 are provided on the wrapping post 742 to prevent the button surface from shrinking.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A residual current device (RCD) with an anti-switching clamp, characterized in that: The device includes a housing (1) and a wire clip (2) located at the tail of the housing (1). The end of the wire clip (2) is provided with a plug-in block (21) that can be inserted into the housing (1). The housing (1) is provided with an anti-disengagement groove (3) for the plug-in block (21) to be inserted into. A positioning mechanism (4) is provided between the wire clip (2) and the housing (1) to prevent the wire clip (2) from rotating circumferentially.

2. A residual current device with anti-switching clamp according to claim 1, characterized in that: The positioning mechanism (4) includes a positioning rib (41) disposed on one of the plug-in block (21) or the housing (1) and a positioning groove (42) disposed on the other and adapted to the positioning rib (41). The housing (1) includes a lower shell (11) and an upper shell (12) covering the lower shell (11).

3. A residual current device with anti-switching clamp according to claim 2, characterized in that: The positioning rib (41) is disposed on the housing (1), and the positioning groove (42) is disposed on the wire clip (2). The positioning rib (41) includes a first rib (411) disposed on the upper shell (12) and a second rib (412) disposed on the lower shell (11). The positioning groove (42) includes a first groove (421) and a second groove (422) disposed on the upper and lower ends of the plug-in block (21). When the upper shell (12) and the lower shell (11) are closed, the first rib (411) is engaged in the first groove (421) and the second rib (412) is engaged in the second groove (422).

4. A residual current device with anti-switching clamp according to claim 3, characterized in that: The housing (1) is provided with a first arc-shaped column (13) and a second arc-shaped column (14) arranged opposite to each other, and the anti-detachment groove (3) is opened between the first arc-shaped column (13) and the second arc-shaped column (14).

5. A residual current device with anti-switching clamp according to any one of claims 1-4, characterized in that: The housing (1) is also provided with a wire clamping block (5) for fixing the wire. The wire clamping block (5) is located on the side of the plug block (21) facing away from the wire clip (2). The wire clamping block (5) is provided with at least one wire clamping rib (51). The wire clamping block (5) is provided with an assembly screw hole (52) for positioning the wire clamping block (5). The housing (1) is provided with a support base (6). The support base (6) is provided with a connecting hole (61) that communicates with the assembly screw hole (52). The fastening nail can pass through the assembly screw hole (52) and the connecting hole (61) in sequence to fix the wire clamping block (5) above the support base (6).

6. A residual current device with anti-switching clamp according to claim 5, characterized in that: The pressure rib (51) is provided with clearance ramps (53) on both sides.

7. A residual current device with anti-switching clamp according to any one of claims 1-4, characterized in that: The housing (1) is also provided with a button assembly, which includes a base (7) and a test button (71) positioned above the base (7). A cover (72) is also provided above the test button (71). A test spring (73) is provided between the test button (71) and the cover (72). A positioning post (74) for positioning the test spring (73) is provided inside the test button (71).

8. A residual current device with anti-switching clamp according to claim 7, characterized in that: The positioning post (74) includes a positioning core (741) for the test spring (73) to be sleeved on its outer periphery and a wrapping post (742) surrounding the test spring (73), the wrapping post (742) being provided with at least one clearance groove (75).

9. A residual current device with anti-switching clamp according to claim 5, characterized in that: The housing (1) is also provided with a button assembly, which includes a base (7) and a test button (71) positioned above the base (7). A cover (72) is also provided above the test button (71). A test spring (73) is provided between the test button (71) and the cover (72). A positioning post (74) for positioning the test spring (73) is provided inside the test button (71).

10. A residual current device with anti-switching clamp according to claim 9, characterized in that: The positioning post (74) includes a positioning core (741) for the test spring (73) to be sleeved on its outer periphery and a wrapping post (742) surrounding the test spring (73), the wrapping post (742) being provided with at least one clearance groove (75).

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