Press-to-unlock Rotary Junction Box

Abstract

The present invention discloses a pressing-unlocking type rotary junction box, which is characterized in that: it includes a bottom shell, a face cover and a pressing plug panel. The bottom shell is provided with a cavity. The face cover is fixedly connected to the opening of the bottom shell by screws. A circular counterbore is formed in the middle of the inner top wall of the face cover. The pressing plug panel includes an integrally formed circular base and a frustum part. The pressing plug panel is arranged in the counterbore. The horizontal annular surface of the counterbore is provided with upper annular teeth, and the edge of the top wall of the circular base is provided with lower annular teeth. The side wall of the circular base is slidably matched with the cavity of the bottom shell. An insulating hollow column is fixedly connected to the bottom wall of the bottom shell. An upper live electric ring, an upper neutral electric ring and a ground wire ring are sequentially and fixedly sleeved on the outer wall of the insulating hollow column. During the rotation of the plug panel, the conductive contacts of the plug remain separated from the upper electric rings in the junction box, avoiding the generation of electric sparks between the two.

Description

Technical Field

[0001] The present invention relates to a junction box, and more particularly to a press-unlockable rotary junction box. Background Art

[0002] A rotary junction box refers to a type of junction box whose plug panel can rotate. When a plug is inserted into the plug panel, the plug panel can be driven to rotate by rotating the plug, thereby changing the angular position of the plug, and thus changing the outlet orientation of the plug wire, so that the plug wire can avoid other wires or objects, avoid winding, and make the application of the junction box more flexible.

[0003] However, in the prior art, since the plug panel can rotate freely (cannot be fixed), when it rotates to a suitable angular position, if the plug wire is touched by other external objects, the plug panel will be driven and thus rotate to other non-suitable angular positions, making it difficult for the plug panel to remain at the suitable angular position.

[0004] Furthermore, during the process of rotating the plug panel, the operator needs to twist the plug to drive the rotation of the plug panel. During the process of twisting the plug, the plug panel rotates, and there is a relative sliding process between the conductive contacts of the plug and the power-on ring in the junction box (due to the rotation of the plug panel). During the relative sliding process between the conductive contacts and the power-on ring, electric sparks and other phenomena are likely to occur between the two, easily causing local overheating and burning of the conductive contacts and the power-on ring, thus resulting in poor subsequent contact between the conductive contacts and the power-on ring. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a press-unlockable rotary junction box, whose plug panel can be locked and thus can remain at a suitable angular position. Furthermore, during the rotation of the plug panel, the conductive contacts of the plug and the power-on ring in the junction box remain disengaged, avoiding the generation of electric sparks between the two, and thus avoiding poor contact between the conductive contacts and the power-on ring.

[0006] The object of the present invention is achieved by adopting the following technical solutions:

[0007] Press-unlockable rotary junction box, comprising a bottom case, a face cover and a press plug panel. The bottom case is provided with a cylindrical cavity. The face cover is fixedly connected to the opening of the bottom case by screws. A circular counterbore is formed in the middle of the inner top wall of the face cover. The press plug panel includes an integrally formed circular base and a frustum portion. The press plug panel is disposed in the counterbore. An upper ring tooth is provided on the horizontal annular surface of the counterbore. A lower ring tooth is provided on the edge of the top wall of the circular base. The side wall of the circular base is slidably engaged with the cavity of the bottom case. An insulating hollow cylinder is fixedly connected to the bottom wall of the bottom case. A live wire power-on ring, a neutral wire power-on ring and a ground wire ring are sequentially fixedly sleeved on the outer wall of the insulating hollow cylinder. An outlet hole is formed in the bottom wall of the bottom case. The insulating hollow cylinder is provided with a plurality of wire passing holes. The top wall of the press plug panel is provided with a live wire jack, a neutral wire jack and a ground wire jack. A live wire extending rod, a neutral wire extending rod and a ground wire extending rod are fixedly connected to the bottom wall of the press plug panel. The bottom ends of the live wire extending rod, the neutral wire extending rod and the ground wire extending rod are respectively electrically connected to the live wire jack, the neutral wire jack and the ground wire jack. The bottom end of the live wire extending rod is hinged with a live wire swing rod. The bottom end of the neutral wire extending rod is hinged with a neutral wire swing rod. The bottom end of the ground wire extending rod is hinged with a ground wire swing rod. A force-receiving annular flange is provided on the inner side wall of the bottom case. When the press plug panel is in the reset state, the upper ring tooth is engaged with the lower ring tooth, and the bottom walls of the outer ends of the live wire swing rod, the neutral wire swing rod and the ground wire swing rod all abut against the top side of the force-receiving annular flange. The top side of the inner end of the live wire swing rod abuts against the bottom wall of the live wire power-on ring. The top side of the inner end of the neutral wire swing rod abuts against the bottom wall of the neutral wire power-on ring. The top side of the inner end of the ground wire swing rod abuts against the bottom wall of the ground wire ring.

[0008] Specifically, a lower concave pit is provided on the top wall of the insulating hollow cylinder, and an upper concave pit is provided on the bottom wall of the circular base. The lower concave pit and the upper concave pit are coaxially arranged. A reset compression spring is provided between the lower concave pit and the upper concave pit. The upper and lower ends of the reset compression spring respectively abut against the bottom walls of the lower concave pit and the upper concave pit.

[0009] Specifically, the live wire swing rod, the neutral wire swing rod or the ground wire swing rod is bent twice to form three sections of rods, and the first section and the last section of the three sections of rods are parallel to each other.

[0010] Specifically, a live wire reset tension spring is connected between the live wire extending rod and the live wire swing rod, a neutral wire reset tension spring is connected between the neutral wire extending rod and the neutral wire swing rod, and a ground wire reset tension spring is connected between the ground wire extending rod and the ground wire swing rod.

[0011] Specifically, a limiting annular flange is provided on the inner wall of the bottom case. When the face cover moves to the limiting annular flange, the outer ends of the live wire swing rod, the neutral wire swing rod, and the ground wire swing rod are respectively abutted by the force-bearing annular flange, so that the live wire swing rod, the neutral wire swing rod, and the ground wire swing rod all swing to their respective inner ends and are respectively separated from the live wire power-on ring, the neutral wire power-on ring, and the ground wire ring.

[0012] Specifically, the top ends of the live wire extending rod, the neutral wire extending rod, and the ground wire extending rod are respectively located in the live wire jack, the neutral wire jack, and the ground wire jack, and contact spring pieces are provided at the top ends of the live wire extending rod, the neutral wire extending rod, and the ground wire extending rod respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] During the process of rotating and pressing the plug panel, the inner ends of the live wire swing rod, the neutral wire swing rod, and the ground wire swing rod are respectively separated from the live wire power-on ring, the neutral wire power-on ring, and the ground wire ring, thereby avoiding the relative sliding between the live wire swing rod and the live wire power-on ring (the neutral wire swing rod and the neutral wire power-on ring) in the conductive state to generate electric sparks, thereby avoiding the high temperature of the live wire swing rod and the live wire power-on ring (the neutral wire swing rod and the neutral wire power-on ring) and being scorched, and thus avoiding subsequent poor contact. Moreover, during the process of rotating the plug panel by pressing, the plug panel is made to be non-powered, improving the electrical safety. Description of the Drawings

[0015] Figure 1 is the top view of the pressing and unlocking type rotary wiring box;

[0016] Figure 2 is the top view of the pressing plug panel;

[0017] Figure 3 is Figure 1 the sectional view corresponding to the A-A section in

[0018] Figure 4 is Figure 3 the partial enlarged view at B in

[0019] In the figure: 1. Bottom case; 11. Wire outlet hole; 12. Limiting annular flange; 13. Stress-bearing annular flange; 2. Face cover; 21. Counterbore; 3. Pressing plug panel; 31. Circular base; 32. Frustum part; 33. Live wire jack; 34. Neutral wire jack; 35. Ground wire jack; 36. Live wire extension rod; 361. Live wire swing rod; 362. Live wire return spring; 37. Neutral wire extension rod; 371. Neutral wire swing rod; 372. Neutral wire return spring; 38. Lower ring teeth; 39. Contact spring piece; 4. Insulating hollow cylinder; 41. Live wire energizing ring; 42. Neutral wire energizing ring; 43. Ground wire ring; 44. Wire passing hole; 5. Return compression spring. Detailed implementation manners

[0020] Next, in combination with the accompanying drawings and specific implementation manners, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0021] See Figures 1 to 4 , the pressing and unlocking type rotary wiring box includes a bottom case 1, a face cover 2 and a pressing plug panel 3. The bottom case 1 is provided with a cylindrical cavity, and the face cover 2 is fixedly connected to the opening of the bottom case 1 by screws. A circular counterbore 21 is formed in the middle of the inner top wall of the face cover 2. The pressing plug panel 3 includes an integrally formed circular base 31 and a frustum part 32.

[0022] The pressing plug panel 3 is arranged in the counterbore 21. The horizontal annular surface of the counterbore 21 is provided with upper ring teeth, and the edge of the top wall of the circular base 31 is provided with lower ring teeth 38. The side wall of the circular base 31 is slidably matched with the cavity of the bottom case 1. An insulating hollow cylinder 4 is fixedly connected to the bottom wall of the bottom case 1, and a live wire energizing ring 41, a neutral wire energizing ring 42 and a ground wire ring 43 are sequentially and fixedly sleeved on the outer wall of the insulating hollow cylinder 4.

[0023] A wire outlet hole 11 is formed in the bottom wall of the bottom case 1, and the insulating hollow cylinder 4 is provided with a plurality of wire passing holes 44. The top wall of the pressing plug panel 3 is provided with a live wire jack 33, a neutral wire jack 34 and a ground wire jack 35 ( Figure 3 not shown). A live wire extension rod 36, a neutral wire extension rod 37 and a ground wire extension rod (not shown in the figure) are fixedly connected to the bottom wall of the pressing plug panel 3. The tops of the live wire extension rod 36, the neutral wire extension rod 37 and the ground wire extension rod are respectively electrically connected to the live wire jack 33, the neutral wire jack 34 and the ground wire jack 35.

[0024] The bottom end of the live wire extending rod 36 is hinged with a live wire swing rod 361. The bottom end of the neutral wire extending rod 37 is hinged with a neutral wire swing rod 371. The bottom end of the ground wire extending rod is hinged with a ground wire swing rod (not shown in the figure). A force-bearing annular flange 13 is provided on the inner side wall of the bottom case 1. When the plug panel 3 is pressed to be in the reset state, the upper ring teeth and the lower ring teeth 38 are engaged, and the outer end bottom walls of the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod all abut against the top side of the force-bearing annular flange 13. The inner end top side of the live wire swing rod 361 abuts against the bottom wall of the live wire power-on ring 41. The inner end top side of the neutral wire swing rod 371 abuts against the bottom wall of the neutral wire power-on ring 42. The inner end top side of the ground wire swing rod abuts against the bottom wall of the ground wire ring.

[0025] Specifically, a concave pit is provided on the top wall of the insulating hollow cylinder 4, and a concave pit is provided on the bottom wall of the circular base 31. The concave pit and the upper concave pit are coaxially arranged, and a reset compression spring 5 is provided between the lower concave pit and the upper concave pit. The upper and lower ends of the reset compression spring 5 respectively abut against the bottom walls of the lower concave pit and the upper concave pit.

[0026] Specifically, the live wire swing rod 361, the neutral wire swing rod 371 or the ground wire swing rod is bent twice to form three sections of rods, and the first section and the last section of the three sections of rods are parallel to each other.

[0027] Specifically, a live wire reset tension spring 362 is connected between the live wire extending rod 36 and the live wire swing rod 361. A neutral wire reset tension spring 372 is connected between the neutral wire extending rod 37 and the neutral wire swing rod 371. A ground wire reset tension spring (not shown in the figure) is connected between the ground wire extending rod and the ground wire swing rod.

[0028] A limiting annular flange 12 is provided on the inner wall of the bottom case 1. When the face cover 2 moves to the limiting annular flange 12, the outer ends of the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod are all abutted by the force-bearing annular flange 13, so that the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod all swing to their respective inner ends to be separated from the live wire power-on ring 41, the neutral wire power-on ring 42 and the ground wire ring 43 respectively.

[0029] The top ends of the live wire extending rod 36, the neutral wire extending rod 37 and the ground wire extending rod are respectively located in the live wire jack 33, the neutral wire jack 34 and the ground wire jack 35. Contact spring pieces 39 are provided at the top ends of the live wire extending rod 36, the neutral wire extending rod 37 and the ground wire extending rod. The contact spring pieces 39 are used to contact the pins of the plug to ensure good contact.

[0030] The working principle of the pressing and unlocking type rotary wiring box of the present invention is as follows:

[0031] In the reset state (as Figure 3 shown):

[0032] The elastic force of the reset compression spring 5 acts on the insulating hollow cylinder 4 and the pressing plug panel 3, so that the upper ring teeth of the horizontal ring surface of the counterbore 21 are kept engaged with the lower ring teeth 38 at the edge of the top wall of the circular base 31. In this state, the circular base 31 cannot rotate (the upper ring teeth and the lower ring teeth 38 are kept engaged), and the inner ends of the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod respectively abut against the live wire power-on ring 41, the neutral wire power-on ring 42 and the ground wire ring 43, so that the live wire jack 33, the neutral wire jack 34 and the ground wire jack 35 are respectively connected to the live wire power-on ring 41, the neutral wire power-on ring 42 and the ground wire ring 43, and thus the live wire jack 33, the neutral wire jack 34 and the ground wire jack 35 are powered on. When a plug is inserted into the junction box, the pressing plug panel 3 will automatically return to the above-mentioned reset state.

[0033] When it is necessary to rotate the orientation of the plug:

[0034] Manually press the plug, so that the plug together with the pressing plug panel 3 moves downward until the bottom wall edge of the pressing plug panel 3 touches the limiting annular flange 12 (the reset compression spring 5 will be further compressed during the downward movement). During the downward movement, the upper ring teeth of the horizontal ring surface of the counterbore 21 are disengaged from the lower ring teeth 38 at the edge of the top wall of the circular base 31, and the outer ends of the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod are all abutted by the force-applying annular flange 13, so that the inner ends of the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod swing downward and respectively disengage from the live wire power-on ring 41, the neutral wire power-on ring 42 and the ground wire ring 43 (the live wire reset tension spring 362, the neutral wire reset tension spring 372 and the ground wire reset tension spring are further stretched), so that the live wire jack 33, the neutral wire jack 34 and the ground wire jack 35 are not powered on. At this time, the pressing plug panel 3 can be rotated to a suitable angular position. During the rotation of the pressing plug panel 3, the inner ends of the live wire swing rod 361, the neutral wire swing rod 371 and the ground wire swing rod are respectively disengaged from the live wire power-on ring 41, the neutral wire power-on ring 42 and the ground wire ring 43, so as to avoid the relative sliding between the live wire swing rod 361 and the live wire power-on ring 41 (the neutral wire swing rod 371 and the neutral wire power-on ring 42) in the conductive state and generate electric sparks, so as to avoid the high temperature of the live wire swing rod 361 and the live wire power-on ring 41 (the neutral wire swing rod 371 and the neutral wire power-on ring 42) and cause charring, so as to avoid subsequent poor contact. Moreover, during the rotation of the pressing plug panel 3, the pressing plug panel 3 is not powered on, improving the electrical safety.

[0035] When the plug rotates to a suitable angular position:

[0036] Release the pressing plug panel 3, and the pressing plug panel 3 resets under the elastic action of the reset compression spring 5 (as Figure 3As shown, the upper ring teeth of the horizontal annular surface of the counterbore 21 are engaged with the lower ring teeth 38 at the edge of the top wall of the circular base 31 again (to lock the pressing plug panel 3), and the live wire extension rod 36, the neutral wire extension rod 37, and the ground wire extension rod are moved upward, so that the inner ends of the live wire swing rod 361, the neutral wire swing rod 371, and the ground wire swing rod swing upward respectively to contact the live wire energizing ring 41, the neutral wire energizing ring 42, and the ground wire ring 43 (under the pulling force of the live wire return spring 362, the neutral wire return spring 372, and the ground wire return spring), so that the live wire jack 33, the neutral wire jack 34, the ground wire jack 35, and the plug are energized.

[0037] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. Press-unlockable rotary junction box, characterized in that: It includes a bottom shell, a face cover and a pressing plug panel. The bottom shell is provided with a cylindrical cavity. The face cover is fixedly connected to the opening of the bottom shell by screws. A circular counterbore is formed in the middle of the inner top wall of the face cover. The pressing plug panel includes an integrally formed circular base and a frustum part. The pressing plug panel is arranged in the counterbore. The horizontal annular surface of the counterbore is provided with upper annular teeth, and the edge of the top wall of the circular base is provided with lower annular teeth. The side wall of the circular base is slidably matched with the cavity of the bottom shell. The bottom wall of the bottom shell is fixedly connected with an insulating hollow cylinder. The outer wall of the insulating hollow cylinder is sequentially fixedly sleeved with a live wire power-on ring, a neutral wire power-on ring and a ground wire ring. The bottom wall of the bottom shell is provided with a wire outlet hole. The insulating hollow cylinder is provided with a plurality of wire passing holes. The top wall of the pressing plug panel is provided with a live wire jack, a neutral wire jack and a ground wire jack. The bottom wall of the pressing plug panel is fixedly connected with a live wire extending rod, a neutral wire extending rod and a ground wire extending rod. The bottom ends of the live wire extending rod, the neutral wire extending rod and the ground wire extending rod are respectively electrically connected to the live wire jack, the neutral wire jack and the ground wire jack. The bottom end of the live wire extending rod is hinged with a live wire swinging rod, the bottom end of the neutral wire extending rod is hinged with a neutral wire swinging rod, and the bottom end of the ground wire extending rod is hinged with a ground wire swinging rod. The inner side wall of the bottom shell is provided with a force-bearing annular flange. When the pressing plug panel is in the reset state, the upper annular teeth are engaged with the lower annular teeth, and the outer end bottom walls of the live wire swinging rod, the neutral wire swinging rod and the ground wire swinging rod all abut against the top side of the force-bearing annular flange. The inner end top side of the live wire swinging rod abuts against the bottom wall of the live wire power-on ring, the inner end top side of the neutral wire swinging rod abuts against the bottom wall of the neutral wire power-on ring, and the inner end top side of the ground wire swinging rod abuts against the bottom wall of the ground wire ring.

2. The push-unlock type rotary junction box according to claim 1, characterized in that: The top wall of the insulating hollow cylinder is provided with a lower concave pit, and the bottom wall of the circular base is provided with an upper concave pit. The lower concave pit and the upper concave pit are coaxially arranged, and a reset compression spring is arranged between the lower concave pit and the upper concave pit. The upper and lower ends of the reset compression spring respectively abut against the bottom walls of the lower concave pit and the upper concave pit.

3. The pressing-unlocking type rotary junction box according to claim 1, wherein: The live wire swinging rod, the neutral wire swinging rod or the ground wire swinging rod is bent twice to form three sections of rods, and the first section and the last section of the three sections of rods are parallel to each other.

4. The push-unlock type rotary junction box according to claim 1, wherein: A live wire reset tension spring is connected between the live wire extending rod and the live wire swinging rod, a neutral wire reset tension spring is connected between the neutral wire extending rod and the neutral wire swinging rod, and a ground wire reset tension spring is connected between the ground wire extending rod and the ground wire swinging rod.

5. The pressing-unlocking type rotary junction box according to claim 1, wherein: The inner wall of the bottom shell is provided with a limiting annular flange. When the face cover moves to the limiting annular flange, the outer ends of the live wire swinging rod, the neutral wire swinging rod and the ground wire swinging rod are respectively abutted by the force-bearing annular flange, so that the live wire swinging rod, the neutral wire swinging rod and the ground wire swinging rod all swing to their respective inner ends to be separated from the live wire power-on ring, the neutral wire power-on ring and the ground wire ring respectively.

6. The push-unlock type rotary junction box according to claim 1, wherein: The top ends of the live wire extending rod, the neutral wire extending rod, and the ground wire extending rod are respectively located in the live wire jack, the neutral wire jack, and the ground wire jack, and contact reeds are provided at the top ends of the live wire extending rod, the neutral wire extending rod, and the ground wire extending rod respectively.

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