A small power taking box module

Abstract

The utility model discloses a small -size electricity taking box module for solving the problem that the plug connection is easy to loosen in traditional electricity taking box module, realizes one -handed convenient operation simultaneously, including electricity taking box, the electricity taking box is equipped with the outlet, and the electricity taking box is fixed with the plug interface, the plug interface is used for connecting the plug, be equipped with fixed establishment between the plug with the plug interface, the utility model discloses a fixed establishment that constitutes by first tooth plate, second tooth plate, connecting head and elastic dog, in the process that connecting head and plug interface thread connection, utilize the elasticity of first spring to make the right angle face of first meshing tooth and second meshing tooth abut, realize anti -loose locking, solved the problem that the plug connection is easy to loosen in traditional electricity taking box module, simultaneously, through the cooperation of elastic dog and bayonet, press elastic dog can make the clamping block separate from the bayonet, make two meshing tooth separate, realize one -handed dismounting, solved the inconvenient operation problem of existing anti -loose scheme.

Description

Technical Field

[0001] This utility model relates to the field of power collection box technology, specifically to a small power collection box module. Background Technology

[0002] In the field of voltage transformers, power take-up boxes are commonly used. Traditional power take-up boxes often use stainless steel shells and have internal terminals for wiring. Wiring requires tools to tighten, making the process cumbersome and resulting in poor connection reliability. Therefore, existing power take-up boxes often use aviation plugs for wiring connections. For example, the utility model patent disclosed in CN207425517U describes a transformer with waterproof and error-proof wiring functions. The lower side wall of the shell has a downward-facing junction box, inside which is a downward-facing aviation socket with an aviation plug for connecting cables for power output and signal transmission.

[0003] Currently, there are two main types of connection methods for aviation connectors: 1. Straight-insertion snap-fit ​​connection The direct-plug aviation connector uses a push-in structure with a spring-loaded latch on the side. When inserted into the socket, the latch automatically springs into the socket's slot to lock it in place. To remove it, simply press the latch to release the connector. This connection method is simple to operate and allows for fast insertion and removal, making it widely used in scenarios requiring frequent disassembly and assembly. However, the direct-plug connection lacks the axial clamping force generated by threaded engagement. Under vibration, the contact surfaces of the plug and socket may experience fretting wear, affecting the reliability of signal transmission.

[0004] II. Threaded Connection Because threaded connections have self-locking properties and can provide greater axial clamping force, their connection tightness is generally superior to that of snap-fit ​​connections, making them widely used in vibrating environments such as high-voltage transformers. However, under long-term, high-intensity vibration, threaded connections may still loosen and reverse, leading to poor contact or signal interruption.

[0005] To prevent the threaded locking parts from loosening, existing technologies generally add an additional limiting mechanism. However, this does not allow for one-handed operation. For example, the utility model patent with authorization announcement number CN208548530U discloses an aviation plug locking mechanism. When it is necessary to unplug the plug, one hand needs to be freed to move the elastic buckle to one side, while the other hand is used to turn the locking nut. This increases the difficulty of operation when working with high-voltage transformers (especially pole-mounted transformers installed on utility poles).

[0006] Therefore, how to achieve convenient one-handed operation while ensuring reliable connection and preventing vibration-induced loosening has become an urgent problem to be solved in this field. Utility Model Content

[0007] The purpose of this utility model is to provide a small power box module to solve the problem of easy loosening of plug connection in traditional power box modules, while realizing convenient one-handed operation.

[0008] To solve the above problems, this utility model discloses a small power collection box module, including a power collection box, the power collection box having a cable outlet and a plug interface fixed to the power collection box, the plug interface being used to connect a plug, and a fixing mechanism being provided between the plug and the plug interface. The fixing mechanism includes: A first toothed plate is fixed with a first meshing tooth. The first toothed plate can slide in the axial direction of the plug interface, and a first spring is connected between the first toothed plate and the plug interface. A connector, which is rotatably connected to the plug and threadedly connected to the plug interface; The second toothed plate is fixed with a second meshing tooth corresponding to the first meshing tooth, and the second toothed plate is provided with a connecting part, which is slidably installed on the connector in the axial direction; The elastic claw has one end fixed to the connector and the other end fixed with a locking block. The connector is provided with a locking slot corresponding to the locking block.

[0009] By adopting the above technical solution, this utility model, through the setting of a fixing mechanism composed of a first toothed plate, a second toothed plate, a connector, and an elastic claw, utilizes the elastic force of the first spring to make the right-angle surfaces of the first and second meshing teeth abut against each other during the threaded connection between the connector and the plug interface, thereby achieving anti-loosening locking and solving the problem of easy loosening of the plug connection in traditional power box modules. At the same time, through the cooperation of the elastic claw and the locking slot, pressing the elastic claw can disengage the locking block from the locking slot, separating the two meshing teeth, realizing one-handed disassembly, and solving the problem of inconvenient operation of existing anti-loosening solutions.

[0010] According to another specific embodiment of the present invention, the plug interface is an aviation plug female end, and the plug is an aviation plug male end.

[0011] According to another specific embodiment of the present invention, a first sliding guide structure is provided between the plug interface and the first toothed plate.

[0012] According to another specific embodiment of the present invention, the first toothed plate is rotatably mounted on the plug interface, the plug interface is rotatably connected to a rotating ring, a second sliding guide structure is provided between the rotating ring and the first toothed plate, the first spring is connected between the rotating ring and the first toothed plate, a flange is fixed on the side of the rotating ring, and a limiting opening is provided through the flange. A limiting block is movably mounted on the side of the second toothed plate near the rotating ring. A second spring is connected between the limiting block and the second toothed plate. The limiting block is used to restrict the rotation of the rotating ring when it is inserted into the limiting port.

[0013] According to another specific embodiment of the present invention, the second toothed plate is provided with a movable groove on the side near the first toothed plate, a movable ring is movably installed in the movable groove, the second spring is connected between the movable ring and the movable groove, and the limiting block is fixed to the surface of the movable ring.

[0014] According to another specific embodiment of the present invention, the side of the connector is provided with a recessed portion, the connecting portion is slidably connected to the recessed portion, the elastic claw is disposed inside the recessed portion, and the elastic claw is located between the recessed portion and the connecting portion.

[0015] According to another specific embodiment of the present invention, the surface of the elastic claw is provided with a pressing part, and the pressing part is a groove structure.

[0016] According to another specific embodiment of the present invention, the side of the plug is provided with a limiting ring, and the connector is provided with a rotating groove that rotatably cooperates with the limiting ring.

[0017] According to another specific embodiment of the present invention, the cross-sectional tooth shape of the first meshing tooth and the second meshing tooth is a right-angled triangle.

[0018] According to another specific embodiment of this utility model, the outlet is fixed with an outlet rubber sleeve. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a side view of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the plug interface and plug structure of Embodiment 1 of this utility model; Figure 3 This is a three-dimensional structural schematic diagram of Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of the plug interface and plug structure of Embodiment 2 of this utility model; Figure 5 This is a cross-sectional structural diagram of Embodiment 2 of this utility model; Figure 6 This is Embodiment Two of the present utility model. Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the plug interface structure of Embodiment 2 of this utility model; Figure 8 This is a three-dimensional structural diagram of the connector of this utility model; Figure 9 This is a schematic diagram of the connection structure between the movable ring and the second toothed plate in Embodiment 2 of this utility model; Figure 10 This is Embodiment Two of the present utility model. Figure 4 Enlarged structural diagram at point B.

[0020] In the diagram: 10, power receiving box; 20, cable outlet; 30, plug interface; 40, plug; 41, limiting ring; 50, fixing mechanism; 51, first toothed plate; 511, first meshing tooth; 52, first spring; 53, connector; 531, recess; 54, second toothed plate; 541, second meshing tooth; 542, limiting block; 543, second spring; 544, movable ring; 55, connecting part; 56, elastic claw; 561, pressing part; 57, locking block; 60, first sliding guide structure; 70, rotating ring; 71, flange; 72, limiting port; 73, limiting groove; 80, second sliding guide structure; 90, third sliding guide structure. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the 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. Therefore, they should not be construed as limitations on the utility model.

[0023] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "set up," "connected," and "linked" 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 embodiment based on the specific circumstances.

[0025] like Figures 1 to 8 and combined Figure 10 As shown.

[0026] Example 1 A small power receiving box module includes a power receiving box 10. A cable outlet 20 is fixedly provided on one side of the power receiving box 10, and a cable outlet sleeve is fixed to the cable outlet 20 for introducing the secondary cable of a voltage transformer. A plug interface 30 is fixedly provided on the other side of the power receiving box 10. The plug interface 30 is electrically connected to the internal circuit of the power receiving box 10 and is used to connect an external plug 40. In this embodiment, the plug interface 30 is a female terminal of an aviation plug, and the plug 40 is a male terminal of an aviation plug. In the field of high-voltage transformers, connecting the lines to the inside of the power receiving box 10 and connecting the internal circuit of the power receiving box 10 to the plug interface 30 of the aviation plug are existing technologies. Related technologies can be found in the utility model patent with authorization announcement number CN211265256U, "A Safe, Convenient, and Pollution-Resistant Voltage Transformer," which will not be described in detail here.

[0027] To prevent the plug 40 from becoming loose, a fixing mechanism 50 is provided between the plug 40 and the plug interface 30.

[0028] The fixing mechanism 50 includes a first toothed plate 51, a connector 53, a second toothed plate 54, and a resilient pawl 56.

[0029] Please see Figure 1 and combined Figure 5 As shown, the connector 53 is rotatably connected to the plug 40. Specifically, a limiting ring 41 is fixedly provided on the side of the plug 40 housing, and a rotating groove that rotatably engages with the limiting ring 41 is embedded in the inner side of the connector 53. After the plug 40 is inserted into the plug interface 30, the connector 53 is rotated to make the inner wall of the connector 53 threadedly connected to the outer wall of the plug interface 30, thereby fixing the plug 40.

[0030] See Figures 1 to 2As shown, the first toothed plate 51 is sleeved on the outside of the plug interface 30, so that the first toothed plate 51 can slide in the axial direction of the plug interface 30. The first toothed plate 51 has a first meshing tooth 511 fixed on the side near the plug 40. The first meshing tooth 511 is arranged circumferentially on the surface of the first toothed plate 51, and a first spring 52 is connected between the first toothed plate 51 and the plug interface 30.

[0031] See Figures 1 to 2 As shown, the second toothed plate 54 is fixed with a second meshing tooth 541 corresponding to the first meshing tooth 511. The second meshing tooth 541 is arranged circumferentially on the surface of the second toothed plate 54. The second toothed plate 54 is provided with a connecting part 55. The connecting part 55 is slidably installed on the head of the connector 53 in the axial direction. The connecting part 55 is symmetrically arranged on both sides of the second toothed plate 54.

[0032] See Figures 1 to 2 As shown, the connector 53 has a recessed portion 531 on its side, and the connecting portion 55 is a sliding plate structure, which is slidably connected to the recessed portion 531. An elastic claw 56 is located inside the recessed portion 531, between the recessed portion 531 and the connecting portion 55. One end of the elastic claw 56 is fixed to the connector 53, and the other end of the elastic claw 56 is fixed with a locking block 57. The connecting portion 55 has a slot on its side corresponding to the locking block 57. The locking block 57 is engaged inside the slot, thus limiting the connecting portion 55 to the head of the connector 53.

[0033] In this embodiment, the cross-sectional tooth shape of the first meshing tooth 511 and the second meshing tooth 541 is a right-angled triangle.

[0034] The usage of this embodiment is described below: 1. When connecting the plug 40, insert the plug 40 into the plug interface 30 and rotate the connector 53 to make the connector 53 threadedly connected to the outer wall of the plug interface 30. During the tightening process of the connector 53, the second toothed plate 54 is driven to move towards the first toothed plate 51 through the connecting part 55, so that the first meshing tooth 511 and the second meshing tooth 541 gradually approach each other. When the inclined surface of the second meshing tooth 541 contacts the inclined surface of the first meshing tooth 511, the relative sliding between the inclined surfaces generates an axial component force, which pushes the first toothed plate 51 to compress the first spring 52 and retract. As the connector 53 continues to rotate, the tooth tip of the second meshing tooth 541 passes the highest point of the tooth tip of the first meshing tooth 511, and the inclined surfaces of the two teeth are misaligned. The compressed first spring 52 releases its elastic force instantly, pushing the first toothed plate 51 to reset, so that the right-angled surface of the first meshing tooth 511 and the right-angled surface of the second meshing tooth 541 are tightly engaged. At this point, since the right-angled surface cannot generate an axial force that causes the reverse rotation, the second toothed plate 54 is locked and cannot be reversed, thereby preventing the connector 53 from loosening.

[0035] 2. When unplugging the plug 40, hold the base of the plug 40 with the palm of one hand and press the side of the elastic claw 56 with your thumb and forefinger. When the elastic claw 56 is pressed, it causes the locking block 57 to disengage from the locking jaw of the connecting part 55. Under the elastic force of the first spring 52, the second toothed plate 54 is pushed to slide away from the first toothed plate 51, so that the first engaging tooth 511 and the second engaging tooth 541 are separated. At this time, rotating the connector 53 in the opposite direction with one hand will separate the connector 53 from the plug interface 30 and allow the plug 40 to be easily unplugged.

[0036] See Figure 2 As shown, in this embodiment, a first sliding guide structure 60 is provided between the plug interface 30 and the first toothed plate 51 to guide the first toothed plate 51 to move along the axial direction of the plug interface 30 and prevent the first toothed plate 51 from rotating.

[0037] See Figure 8 As shown, in order to facilitate pressing the elastic claw 56, the surface of the elastic claw 56 is provided with a pressing part 561. The pressing part 561 has a groove structure, which makes it easy to insert a finger for pressing.

[0038] Example 2 See Figures 3 to 7 and combined Figure 10 As shown, Embodiment 2 has a structure that is largely the same as Embodiment 1, except that: the first toothed plate 51 is rotatably mounted on the plug interface 30, and a rotating ring 70 is rotatably connected to one end of the plug interface 30 near the power collection box 10. The first toothed plate 51, the rotating ring 70, and the plug interface 30 are coaxially arranged, and a second sliding guide structure 80 is provided between the rotating ring 70 and the first toothed plate 51. (See [reference to previous section] for details.) Figure 7 As shown, the first toothed plate 51 moves along the axial direction of the rotating ring 70 and prevents the first toothed plate 51 from rotating relative to the rotating ring 70. The first spring 52 is connected between the rotating ring 70 and the first toothed plate 51 for resetting. A flange 71 is fixed on the side of the rotating ring 70, and a limiting port 72 is provided through the flange 71. A limiting groove 73 is provided on the side wall of the power take-up box 10 corresponding to the limiting port 72.

[0039] See Figure 6 As shown, a limiting block 542 is movably installed on the side of the second toothed plate 54 near the rotating ring 70. A second spring 543 is connected between the limiting block 542 and the second toothed plate 54. The limiting block 542 is used to limit the rotation of the rotating ring 70 when it is inserted into the limiting port 72 and the limiting groove 73.

[0040] Further, see Figure 6 and combined Figure 9As shown, the second toothed plate 54 has a movable groove on the side near the first toothed plate 51, and a movable ring 544 is movably installed in the movable groove. A third sliding guide structure 90 connects the movable ring 544 and the second toothed plate 54. A second spring 543 is connected between the movable ring 544 and the movable groove, and a limiting block 542 is fixed to the surface of the movable ring 544.

[0041] The usage of this embodiment is described below: 1. When connecting plug 40, insert plug 40 into plug interface 30. Initially, the first engaging tooth 511 and the second engaging tooth 541 do not contact each other, and the limiting block 542 is not inserted into the limiting port 72 and limiting groove 73, allowing the first tooth plate 51 to rotate freely. Rotating connector 53 causes the first engaging tooth 511 and the second engaging tooth 541 to gradually approach and begin to contact. In the initial contact phase, the preload of the first spring 52 is small, the friction between the first engaging tooth 511 and the second engaging tooth 541 is very low, and connector 53 rotates smoothly, allowing for easy operation. As the connector 53 continues to rotate, the first spring 52 is gradually compressed, and the normal pressure between the first meshing tooth 511 and the second meshing tooth 541 increases. When the frictional force increases to a level sufficient to overcome the rotational inertia of the first tooth plate 51, the second meshing tooth 541 no longer slides relative to the first meshing tooth 511. Instead, the first tooth plate 51 rotates together with the first meshing tooth 511 through the biting force between the second meshing tooth 541 and the first meshing tooth 511, so that there is no relative slippage between the second meshing tooth 541 and the first meshing tooth 511, thus avoiding wear and operational difficulties caused by continuous friction. When the connector 53 rotates to near its limit position, that is, when it is about to be tightened, the surface of the limiting block 542 begins to contact the surface of the flange 71, and the second spring 543 is continuously compressed. When the rotating ring 70 rotates, aligning the limiting port 72 with the limiting block 542, the limiting block 542 moves under the elastic force of the second spring 543 and inserts into the limiting port 72. The rotating ring 70 rotates again, aligning the limiting groove 73 with the limiting block 542, and the limiting block 542 moves again under the elastic force of the second spring 543 and inserts into the limiting groove 73. The rotating ring 70 is locked and cannot rotate, and the first toothed plate 51 connected to it also cannot rotate. Furthermore, under the elastic force of the first spring 52, the right-angled surfaces of the first meshing tooth 511 and the second meshing tooth 541 abut against each other, further completely jamming the connector 53.

[0042] 2. When unplugging plug 40, the operation method is similar to that in Example 1, and will not be described in detail here.

[0043] By adopting the above technical solution, this utility model uses a fixing mechanism 50 composed of a first toothed plate 51, a second toothed plate 54, a connector 53, and an elastic claw 56. When the connector 53 is threadedly connected to the plug interface 30, the elastic force of the first spring 52 causes the right-angle surfaces of the first meshing tooth 511 and the second meshing tooth 541 to abut against each other, thereby achieving anti-loosening locking and solving the problem of easy loosening of the plug connection. When pulling out the plug 40, the connector 53 can be held with one hand and the elastic claw 56 can be pressed to move the second toothed plate 54 away from the first toothed plate 51, causing the two meshing teeth to separate. The connector 53 can then be pulled out by rotating it in the opposite direction, achieving one-handed disassembly.

[0044] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A small power collection box module, characterized in that, The device includes a power receiving box, which has a cable outlet and a plug interface fixed to it. The plug interface is used to connect a plug, and a fixing mechanism is provided between the plug and the plug interface. The fixing mechanism includes: A first toothed plate is fixed with a first meshing tooth. The first toothed plate can slide in the axial direction of the plug interface, and a first spring is connected between the first toothed plate and the plug interface. A connector, which is rotatably connected to the plug and threadedly connected to the plug interface; The second toothed plate is fixed with a second meshing tooth corresponding to the first meshing tooth, and the second toothed plate is provided with a connecting part, which is slidably installed on the connector in the axial direction; The elastic claw has one end fixed to the connector and the other end fixed with a locking block. The connector is provided with a locking slot corresponding to the locking block.

2. The miniature power collection box module according to claim 1, characterized in that, The plug interface is an aviation plug female terminal, and the plug is an aviation plug male terminal.

3. The miniature power collection box module according to claim 1, characterized in that, A first sliding guide structure is provided between the plug interface and the first toothed plate.

4. The miniature power collection box module according to claim 1, characterized in that, The first toothed plate is rotatably mounted on the plug interface, the plug interface is rotatably connected to a rotating ring, a second sliding guide structure is provided between the rotating ring and the first toothed plate, the first spring is connected between the rotating ring and the first toothed plate, a flange is fixed on the side of the rotating ring, and a limiting port is provided through the flange; A limiting block is movably mounted on the side of the second toothed plate near the rotating ring. A second spring is connected between the limiting block and the second toothed plate. The limiting block is used to restrict the rotation of the rotating ring when it is inserted into the limiting port.

5. The miniature power collection box module according to claim 4, characterized in that, The second toothed plate has a movable groove on the side near the first toothed plate. A movable ring is movably installed in the movable groove. The second spring is connected between the movable ring and the movable groove. The limiting block is fixed to the surface of the movable ring.

6. The miniature power collection box module according to claim 1, characterized in that, The connector has a recessed portion on its side, the connecting portion is slidably connected to the recessed portion, the elastic claw is located inside the recessed portion, and the elastic claw is located between the recessed portion and the connecting portion.

7. The miniature power collection box module according to claim 6, characterized in that, The surface of the elastic claw is provided with a pressing part, which is a groove structure.

8. The miniature power collection box module according to claim 1, characterized in that, The plug has a limiting ring on its side, and the connector has a rotating groove that rotatably engages with the limiting ring.

9. The miniature power collection box module according to claim 1, characterized in that, The cross-sectional tooth profiles of the first and second meshing teeth are right-angled triangles.

10. The miniature power collection box module according to claim 1, characterized in that, The outlet is fixed with an outlet sleeve.

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