Connector box

Abstract

The utility model discloses a connector box, belongs to the technical field of cable connection structures, and is used for providing a connector box with adjustable constraint tightness, the connector box comprises a bottom box, a connector seat and a wire clamping plate are arranged in the bottom box, the rear edge of the top surface of the bottom box is rotatably connected with an upper cover through a hinge structure, and the front side surface of the bottom box is provided with a lower constraint plate. A receding cavity is formed in the center of the lower restraining plate, a limiting clamping plate is arranged on the inner wall of the receding cavity, an upper restraining plate is arranged on the front side face of the upper cover, a fixing nut is arranged in the center of the upper restraining plate, a locking piece is in threaded connection with the interior of the fixing nut, and a limiting hook plate is arranged on the portion, located outside the fixing nut, of the locking piece. And when the limiting hook plate rotates towards the lower part of the limiting clamping plate, the limiting hook plate ascends to be in close contact with the limiting clamping plate. According to the application, the locking piece structure capable of realizing compression through rotation is arranged on the open sides of the bottom box and the upper cover, so that the constraint tightness between the upper cover and the bottom box is adjustable, and the adjustable flexibility is relatively high.

Description

Technical Field

[0001] This application relates to the field of cable connection structure technology, and in particular to a junction box. Background Technology

[0002] To facilitate quick connection of cables with identical connectors, junction boxes are typically used. Existing junction boxes have a snap-fit ​​structure on the open side for easy opening and closing. However, since the constraint distance of the snap-fit ​​structure is fixed, the constraint tightness of the two parts that are open and closed is also relatively fixed. When the cables connected to the junction box have different thicknesses, the constraint tightness of the connector and the cable will change. Sometimes it is too loose and lacks stability, and sometimes it is too tight and will cause pressure damage to the cable surface. Summary of the Invention

[0003] The purpose of this application is to provide a junction box with adjustable constraint tightness.

[0004] To achieve the above objectives, this application provides a junction box: including a base box, wherein a connector seat and a wire clamping plate are further provided inside the base box, and a top cover is rotatably connected to the rear edge of the top surface of the base box via a hinge structure. A buckle assembly is movably connected to the front side of the base box, suitable for constraining the top cover. The front side of the base box has a lower constraint plate, and a clearance cavity is formed in the center of the lower constraint plate. A limiting plate is provided on the inner wall of the clearance cavity. The front side of the top cover has an upper constraint plate, and a fixing nut is provided in the center of the upper constraint plate. A locking member is internally threaded to the fixing nut. The portion of the locking member outside the fixing nut has a limiting hook plate. When the locking member is inserted into the clearance cavity and the limiting hook plate rotates downward toward the limiting plate, the limiting hook plate will rise and make close contact with the limiting plate, thereby providing a constraining clamping force.

[0005] As a preferred embodiment, one side of the connector is rotatably connected to the inner wall of the base box; one side wall of the base box is provided with a plug-in groove extending downward from the top surface, and the wire clamping plate is embedded in the plug-in groove. The wire clamping plate can be easily replaced to accommodate wires of different thicknesses.

[0006] As a preferred embodiment, the cable clamping plate has a lead wire groove on the top surface of the plug slot. The lead wire groove connects the inner and outer spaces of the bottom box, allowing the cable to pass through the side wall of the connector box and extend into the connector box.

[0007] As a preferred embodiment, there are several lead slots, which are equidistantly arranged along the length of the upper surface of the wire clamping plate. Each lead slot is provided with a rubber pad to increase the contact friction with the outer surface of the wire.

[0008] As a preferred embodiment, the upper surface of the bottom box has a fitting strip, the upper surface of the cable clamp plate also has a fitting strip, and the upper cover has a fitting groove facing the lower surface of the bottom box, which is suitable for close contact with the fitting strip to form a closed sealing surface, thereby improving the dustproof and waterproof performance of the junction box.

[0009] As a preferred embodiment, the buckle assembly includes a first-stage rotating plate, one side of which is rotatably connected to the front of the base box, and the other side is rotatably connected to a second-stage buckle plate. The upper surface of the top cover is provided with a locking groove, which is suitable for engaging with the second-stage buckle plate, thereby achieving stable limiting constraint.

[0010] As a preferred embodiment, the second-stage buckle plate is L-shaped, and the locking groove extends from the upper surface of the top cover to the front side; the front side of the bottom box also has a groove for accommodating the first-stage rotating plate, so that the front side of the bottom box has better flatness when the buckle assembly is engaged.

[0011] As a preferred embodiment, the outer surface of the locking member has an external thread, which is suitable for engaging with the internal thread of the fixing nut. The upper surface of the upper constraint plate is connected to a rubber cap, which is suitable for fastening to one end of the fixing nut. The inner bottom of the bottom box is provided with a wire clamp, which is used to constrain excessively long wires within the junction box.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By setting a locking structure that can be pressed by rotation on the open side of the bottom box and the top cover, the tightness of the constraint between the top cover and the bottom box is adjustable and the adjustment flexibility is relatively high.

[0014] (2) By designing a replaceable cable clamp structure, the junction box can be adapted to various cables of different thicknesses, and the cables can be fitted with the junction box with a suitable tightness, so that they will not be crushed or easily loosened. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the junction box in the closed state.

[0016] Figure 2 This is a three-dimensional structural diagram of the junction box in its open state.

[0017] Figure 3 For this junction box Figure 2 A magnified view of part A.

[0018] Figure 4 For this junction box Figure 2 A magnified view of section B.

[0019] Figure 5This is a three-dimensional structural diagram of the junction box in its fully unfolded state.

[0020] In the diagram: 1. Base box; 101. Fitting strip; 102. Lower constraint plate; 103. Relief cavity; 104. Limiting plate; 2. Top cover; 201. Fitting groove; 202. Engaging groove; 203. Upper constraint plate; 204. Fixing nut; 205. Cable clamp; 206. Insertion groove; 12. Hinge structure; 3. Buckle assembly; 301. First-stage rotating plate; 302. Second-stage buckle plate; 4. Rubber cap; 5. Connector seat; 6. Cable clamping plate; 601. Lead wire groove; 7. Locking element; 701. Limiting hook plate; 702. External thread. Detailed Implementation

[0021] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] like Figure 1-5The junction box shown includes a base box 1 with a large internal space. A cable tie 205 is provided at the bottom of the base box 1 to constrain the cable routing. The top of the cable tie 205 has an opening through which the cable can slide into the cable tie 205. The base box 1 also contains a connector seat 5 and a cable clamping plate 6. The connector seat 5 has many evenly arranged plugs for mating with the plugs at the cable ends. One side of the connector seat 5 is rotatably connected to the inner side wall of the base box 1, allowing the connector seat 5 to be flipped out of the base box 1 for easier cable insertion. A plug slot 206 extending downwards from the top surface is provided on one side wall of the base box 1, which the cable clamping plate 6 can precisely accommodate. The cable clamping plate 6, which is installed in the plug slot 206, comes in various specifications. Different specifications of cable clamping plates 6 can be used to constrain cables of different thicknesses. The cable clamping plate 6 has a lead wire groove 601 on the top surface of the plug slot 206. The lead wire groove 601 connects the inner and outer spaces of the bottom box 1. In this way, the cable pressed into the lead wire groove 601 can extend out from the inside of the connector box. There are several lead wire grooves 601, which are evenly arranged along the length of the upper surface of the cable clamping plate 6, and multiple cables can be constrained side by side. Each lead wire groove 601 is provided with a rubber pad to tightly wrap the outer side of the cable, which can provide good waterproof and dustproof function, and at the same time avoid damage to the outer surface of the cable caused by hard contact.

[0026] The rear edge of the top surface of the bottom box 1 is rotatably connected to the top cover 2 via a hinge structure 12, which is used to cover and close the upper opening of the bottom box 1. The upper surface of the bottom box 1 has a fitting strip 101, which is made of rubber or silicone material. The upper surface of the wire clamping plate 6 also has a fitting strip 101, but the fitting strip 101 on the wire clamping plate 6 is formed by the protruding part of the rubber pad inside the lead wire groove 601, and is not integrated with the fitting strip 101 on the upper surface of the bottom box 1. The top cover 2 has a fitting groove 201 facing the lower surface of the bottom box 1, which is in close contact with the fitting strip 101 to form a closed annular sealing surface connected end to end.

[0027] The front side of the base box 1 is movably connected to a buckle assembly 3, which is suitable for constraining the top cover 2. Specifically, the buckle assembly 3 includes a first-stage rotating plate 301, one side of which is rotatably connected to the front of the base box 1, and the other side is rotatably connected to a second-stage buckle plate 302. The rotation axes on both sides of the first-stage rotating plate 301 are horizontal. The upper surface of the top cover 2 is provided with a locking groove 202 for engaging with the second-stage buckle plate 302. In fact, the second-stage buckle plate 302 is L-shaped. Correspondingly, the locking groove 202 extends from the upper surface of the top cover 2 to the front side. The front side of the base box 1 also has a groove for accommodating the first-stage rotating plate 301. When the first-stage rotating plate 301 is rotated vertically, the front of the base box 1 has better flatness.

[0028] The front side of the base box 1 has a lower constraint plate 102, the upper surface of which is flush with the upper surface of the base box 1. A clearance cavity 103 is formed in the center of the lower constraint plate 102, which is enclosed by the cylindrical structure on the front of the base box 1. The inner wall of the clearance cavity 103 has an integral limiting plate 104. The front side of the upper cover 2 has an upper constraint plate 203, the lower surface of which is flush with the lower surface of the upper cover 2. A fixing nut 204 is provided in the center of the upper constraint plate 203. A locking member 7 is internally threaded into the fixing nut 204. The locking member 7 is generally cylindrical. The outer side of the fixing part 7 has an external thread 702 for engaging with the internal thread of the fixing nut 204. The upper surface of the upper constraint plate 203 is connected to a rubber cap 4 for fastening one end of the fixing nut 204 to cover the end of the locking part 7 and reduce the probability of the locking part 7 being accidentally touched. The part of the locking part 7 outside the fixing nut 204 has a limiting hook plate 701. When the locking part 7 is inserted into the relief cavity 103 and the limiting hook plate 701 rotates downward toward the limiting plate 104, the limiting hook plate 701 will rise and make tight contact with the limiting plate 104, thereby preventing the upper cover 2 from moving away from the bottom box 1.

[0029] Working principle: In use, first open the buckle assembly 3, lift the rubber cover 4, and then rotate the locking part 7 to allow the limiting hook plate 701 to descend and move away from under the limiting clamping plate 104. The constraint interference of the bottom box 1 on the upper cover 2 disappears, and the upper cover 2 can be flipped upward. At this time, the connector seat 5 and the wire clamping plate 6 are exposed. Flip the connector seat 5 forward to tilt it, and then you can quickly plug in the cable. After plugging in each cable, press the cable with the constrained end into the lead wire groove 601. In this way, the plugged-in cable can maintain good stability, as long as no particularly large force is used. When the cable is dragged, the cable connector will not detach from the connector 5. After all cables are plugged in and secured, the top cover 2 can be closed. The lower end of the locking piece 7 will automatically embed into the clearance cavity 103. Rotating the locking piece 7 in the opposite direction will press the limit hook plate 701 against the limit plate 104 again. Finally, the buckle assembly 3 is fastened upwards, and the entire connector box is installed. At this time, the top cover 2 will press the cable more tightly in the lead groove 601. The rubber outer sheath of the cable will generate strong friction with the rubber pad in the lead groove 601, making it more difficult for the cable connector to detach from the connector 5 under dragging.

[0030] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A splice closure, characterized by: The utility model provides a kind of bottom box (1), connector seat (5) and cable clamping plate (6) are also provided in the bottom box (1), the top surface rear edge of the bottom box (1) is rotatably connected with upper cover (2) by hinged structure (12), the front side of the bottom box (1) is movably connected with buckle assembly (3), suitable for restraining the upper cover (2), the front side of the bottom box (1) has lower restraint plate (102), the central of the lower restraint plate (102) is provided with let room cavity (103), the inner wall of the let room cavity (103) is provided with limit card (104), the front side of the upper cover (2) has upper restraint plate (203), the central of the upper restraint plate (203) is provided with fixed nut (204), the inside screw thread of the fixed nut (204) is connected with locking piece (7), the part of the locking piece (7) outside the fixed nut (204) is provided with limit hook plate (701), when the locking piece (7) is inserted into the let room cavity (103), and limit hook plate (701) rotates below limit card (104), limit hook plate (701) will rise and be in close contact with limit card (104).

2. The splice case of claim 1, wherein: One side of the connector seat (5) is rotatably connected with the inner side wall of the bottom box (1); one side wall of the bottom box (1) is provided with an insertion slot (206) extending downward from the top surface, and the cable clamping plate (6) is embedded in the insertion slot (206).

3. The splice case of claim 2, wherein: The top surface of the cable clamping plate (6) is provided with a lead slot (601) at the top surface of the insertion slot (206), and the lead slot (601) communicates the inner and outer spaces of the bottom box (1).

4. The splice case of claim 3, wherein: The lead slot (601) has a plurality of lead slots (601) arranged equidistantly along the length direction of the upper surface of the cable clamping plate (6), and each lead slot (601) is provided with a rubber pad.

5. The splice case of claim 2, wherein: The upper surface of the bottom box (1) has a fitting strip (101), the upper surface of the cable clamping plate (6) also has a fitting strip (101), and the lower surface of the bottom box (1) is provided with a fitting groove (201) opposite to the upper cover (2), which is suitable for being in close contact with the fitting strip (101).

6. The splice case of any one of claims 1-5, wherein: The buckle assembly (3) comprises a first rotating plate (301), one side of the first rotating plate (301) is rotatably connected with the front surface of the bottom box (1), and the other side is rotatably connected with a second buckle plate (302), the upper surface of the upper cover (2) is provided with a clamping groove (202) suitable for engaging with the second buckle plate (302).

7. The splice case of claim 6, wherein: The second buckle plate (302) is L-shaped, and the clamping groove (202) extends from the upper surface of the upper cover (2) to the front surface; the front surface of the bottom box (1) also has a groove for accommodating the first rotating plate (301).

8. The splice case of any one of claims 1-5, wherein: The outer surface of the locking piece (7) has an external thread (702) suitable for cooperating with the internal thread of the fixed nut (204), the upper surface of the upper restraint plate (203) is connected with a rubber cover (4) suitable for being buckled at one end of the fixed nut (204), and the inner bottom of the bottom box (1) is provided with a wire clamp (205).

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