Multi-core connection box

Abstract

The utility model discloses a multi-core connection box, belongs to the technical field of power connection structures, and provides a multi-core connection box which can be quickly opened and is high in stability after being closed, and the multi-core connection box comprises a box body, a wiring tray is arranged in the box body, the upper surface of the wiring tray is provided with a flat cable connection groove, and the front side surface of the box body is provided with a lower connection plate and a clamping block. An inner screw hole is formed in the upper surface of the lower connecting plate, a cover plate is rotationally connected to the rear edge of the upper surface of the box body through a hinge structure, a buckle plate extending downwards is arranged on the front side face of the cover plate, a bayonet is formed in the buckle plate and is suitable for being meshed with the clamping block, an upper connecting plate is further arranged on the front side face of the cover plate, and a screw penetrates through the center of the upper connecting plate; the threaded section of the screw is suitable for being in threaded fit with the inner screw hole. The buckle structure and the threaded connection structure are arranged on the opening side of the cover plate and the opening side of the box body, so that the connection box has at least two closed states, connection is achieved only through clamping of the buckle plate and the clamping block, and the connection box can be rapidly opened and closed in the states.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power connection structures, in particular to a multi-core terminal box. BACKGROUND

[0002] The terminal box is a component for protecting the cable connection, since the connection of the wire core needs to be carried out inside the terminal box, the terminal box is usually openable, and in order to ensure the stability of the terminal box after installation, the existing terminal box usually uses bolts to constrain and fix the openable part, but the release and opening of the bolts are time-consuming, and it is troublesome to frequently open the terminal box to replace the connected wire core. SUMMARY

[0003] The application aims to provide a multi-core terminal box which can be quickly opened and has high stability after being closed.

[0004] In order to achieve the above purpose, the application provides a multi-core terminal box: a box body is arranged inside the box body, the upper surface of the terminal tray is provided with a wire arranging and connecting groove, the front side of the box body is provided with a lower connecting plate and a clamping block, the upper surface of the lower connecting plate is provided with an internal screw hole, the rear edge of the upper surface of the box body is rotationally connected with a cover plate through a hinge structure, the front side of the cover plate is provided with a downwardly extending clamping plate, the clamping plate is provided with a clamping hole, and the clamping hole is adapted to be engaged with the clamping block, and the front side of the cover plate is further provided with an upper connecting plate, a screw passes through the center of the upper connecting plate, and the threaded section of the screw is adapted to be threadedly connected with the internal screw hole, so that the operation probability of accidental opening can be effectively reduced.

[0005] As a preferred, the terminal tray is clamped with the inner wall of the box body, so that the terminal tray can be conveniently installed and dismounted.

[0006] As a preferred, the terminal tray is rotationally connected with the inner wall of one side of the box body, so that the terminal tray can be angle-adjusted in the connected state with the box body, and the wire core can be more conveniently arranged in the wire arranging and connecting groove after being inclined.

[0007] As a preferred, the inner wall of one side of the box body is provided with a cantilever, and the outer side of the terminal tray is provided with an end shaft, which is adapted to be inserted into the cantilever to form a rotational pair, so as to constrain the movement degree of freedom of the terminal tray.

[0008] As a preferred, the cantilever and the end shaft each have two, the top of the cantilever is provided with a notch, and the end shaft is adapted to be embedded into the notch to rotationally cooperate with the cantilever, so that the rotational cooperation in excess can keep the terminal tray in a stable inclined state after angle adjustment.

[0009] As a preferred, the bottom of the box has a positioning plate and a fixing plate, the positioning plate has a through slot extending from the outer side to the inner side, and the fixing plate has a through hole penetrating the upper and lower surfaces, and a connecting member such as a bolt passes through the through hole to fix the entire junction box on the mounting surface.

[0010] As a preferred, the positioning plate has one, and the fixing plate has two, and the two fixing plates are located on the same side of the box, and the positioning plate is located on the other side of the box, and the isosceles triangle area formed by the positioning plate and the fixing plate has good stability.

[0011] As a preferred, the cover plate has a fitting groove opposite to the lower surface of the box, and the top surface of the box has a fitting strip, which is adapted to cooperate with the fitting groove to form a closed sealing surface, so that the multi-core junction box has good internal and external isolation ability after being closed.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] (1) By setting the buckle structure and the threaded connection structure on the opening side of the cover plate and the box, the multi-core junction box has at least two closed states, one of which is not connected with the screw, and only the buckle plate is clamped with the clamping block to realize the connection, and in this state, the multi-core junction box can be quickly opened and closed; the other is the state of connecting the screw, and the buckle plate and the clamping block are also clamped, and in this state, the multi-core junction box can be kept closed stably for a long time, and the probability of being mistakenly opened can be reduced;

[0014] (2) By setting the detachable and inclined wiring tray structure in the box, the wiring and steps of the wire core are more convenient to operate, and after all the wire cores are connected and embedded into the corresponding wire arranging connecting groove, the wiring tray is horizontally placed in the box, which can improve the working efficiency of the multi-core junction box. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the closed state of the multi-core junction box.

[0016] Figure 2 is a schematic view of the open state of the multi-core junction box.

[0017] Figure 3 is a schematic view of the open state of the multi-core junction box. Figure 2 is a partial enlarged view of A of the multi-core junction box.

[0018] Figure 4 is a partial enlarged view of B of the multi-core junction box. Figure 2

[0019] Figure 5 is a planar top view of the closed state of the multi-core junction box.

[0020] ​In the figure: 1, cover plate; 101, buckle plate; 102, bayonet; 103, upper connecting plate; 104, fitting groove; 2, box body; 201, positioning plate; 202, fixed plate; 203, lower connecting plate; 204, internal screw hole; 205, clamping block; 206, wiring tray; 207, cantilever; 208, end shaft; 209, fitting strip; 210, wire connecting groove; 12, hinged structure; 3, screw. DETAILED DESCRIPTION

[0021] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined with each other in any manner to form new embodiments, without conflict.

[0022] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

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

[0024] The terms "include" and "have" and any variations thereof in the specification and claims of the present 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 does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] As Figures 1-5The shown multi-core joint box includes a box body 2 in a substantially cuboid shape, which is made of plastic by injection molding, but the box body 2 is not a unitary structure, and further has detachable components inside. The bottom of the box body 2 has an integral positioning plate 201 and a fixing plate 202, the extension direction of the positioning plate 201 and the fixing plate 202 is parallel to the bottom surface of the box body 2, and the lower surface of the positioning plate 201 and the fixing plate 202 is flush with the bottom surface of the box body 2. The positioning plate 201 has a through slot extending from the outer side to the inner side, for the fixing column on the mounting surface to slide in, and the end of the fixing column further has a larger blocking ring structure for placing the positioning plate 201 to move along the axial direction of the fixing column, so as to play a good pre-positioning role during installation and fixation. The fixing plate 202 has a through hole penetrating through the upper and lower surfaces, for the connecting member such as a screw 3 to pass through and be fixed with the mounting surface. The positioning plate 201 has one, while the fixing plate 202 usually has at least two, and the two fixing plates 202 are located on the same side of the box body 2, and the positioning plate 201 is located on the other side of the box body 2. The triangular area surrounded by one positioning plate 201 and two fixing plates 202 in the embodiment has good stability.

[0026] A wiring tray 206 is arranged in the box body 2, and the cores are connected on the wiring tray 206. The wiring tray 206 is clamped with the inner wall of the box body 2, facilitating disassembly and assembly operation. The wiring tray 206 can be quickly taken out of or placed into the box body 2. The wiring tray 206 is rotationally connected with the inner wall of one side of the box body 2, so that the wiring tray 206 can be adjusted in inclination under the connected state with the box body 2, facilitating the connection operation of the cores on the wiring tray 206. The inner wall of one side of the box body 2 has a cantilever 207, and the outer side of the corresponding wiring tray 206 has an end shaft 208, which is inserted into the cantilever 207 to form a rotating pair. In order to maintain the stability of the rotational connection, the cantilever 207 and the end shaft 208 each have two, the axes of the two cantilevers 207 are collinear, and are respectively close to the left and right inner walls of the box body 2. The two end shafts 208 are respectively close to the left and right side surfaces of the wiring tray 206. The top of the cantilever 207 is provided with a notch, and the end shaft 208 can be embedded from the notch and then rotationally matched with the cantilever 207, so as to facilitate the matching and disassembly of the end shaft 208 and the cantilever 207. The upper surface of the wiring tray 206 has a wire arranging and connecting groove 210, and the wire arranging and connecting groove 210 has a plurality of wire arranging and connecting grooves 210, which separate the connected cores from each other.

[0027] The front side of the box body 2 has a lower connecting plate 203 and two clamping blocks 205. The upper surface of the lower connecting plate 203 is flush with the upper surface of the box body 2. The two clamping blocks 205 are close to the top of the box body 2 but not flush with the upper surface of the box body 2. The upper surface of the lower connecting plate 203 is provided with an internal screw hole 204. The rear edge of the upper surface of the box body 2 is rotatably connected to the cover plate 1 through the hinge structure 12. The front side of the cover plate 1 has a downwardly extending buckle plate 101. The buckle plate 101 protrudes from the lower surface of the cover plate 1. The buckle plate 101 is provided with a clamping hole 102. The clamping hole 102 extends through the front and rear sides of the buckle plate 101 and is used to engage with the clamping blocks 205. Since the buckle plate 101 is made of elastic plastic, it can quickly limit and release. In addition, the clamping hole 102 is convenient for observing whether the clamping blocks 205 are engaged in place. The front side of the cover plate 1 also has an upper connecting plate 103. The central part of the upper connecting plate 103 is provided with a screw 3. The screw 3 is rotatably connected to the upper connecting plate 103. The threaded section of the screw 3 is used to threadedly connect with the internal screw hole 204. In this way, even if the buckle plate 101 is lifted, the cover plate 1 can still maintain a closed state with the box body 2, so that the connection box cannot be mistakenly opened.

[0028] The lower surface of the cover plate 1 opposite to the box body 2 is provided with a matching groove 104. The matching groove 104 is a continuous closed structure. The matching groove 104 is close to the outer side of the cover plate 1. The shape of the matching groove 104 is similar to the edge of the lower surface of the cover plate 1. The top surface of the box body 2 is provided with a matching strip 209. The shape of the matching strip 209 is similar to the shape of the matching groove 104. In this way, the matching strip 209 can cooperate with the matching groove 104 to form a closed sealing surface, so as to reduce the probability of water seepage in the inner wall after the connection box is closed.

[0029] Working principle: before the cable connection, first open the cover 1, the wiring tray 206 to the appropriate angle, because the end shaft 208 and cantilever 207 is interference fit, so the inclined wiring tray 206 can be well maintained stable, then the corresponding core of the cable connection, each connected core is embedded in a row of connection slot 210, all the core connection and embedded after, close and down cover 1, the block 205 will automatically slip into the card mouth 102 with buckle plate 101 card, then let the screw 3 through the upper connecting plate 103 and lower connecting plate 203 inner screw hole 204 is tight enough, because the cover 1 and box 2 are made of plastic, so has good contact with the sealing characteristics, so the sealing surface formed by the fit strip 209 and fit groove 104 can be very good to prevent water vapor into the splice box; because the cover 1 and box 2 have two kinds of constraints of card and bolt connection, so the splice box can have two kinds of closed state, in need of often open and close the cover 1 conditions, only buckle plate 101 and block 205 card can be connected without screw 3; in need of long time to maintain stable closed state, let buckle plate 101 and block 205 card at the same time, also need to use screw 3 is tight fixed, reduce the probability of misoperation open.

[0030] The above describes the basic principles of the present application, the main features and advantages of the present application. The skilled person in the art should understand that the present application is not limited to the above examples, the above examples and described in the specification is only the principle of the present application, without departing from the spirit and scope of the present application will have various changes and improvements, these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the appended claims and their equivalents.

Claims

1. A multi-core connector box, characterized in that: The box includes a housing (2), inside which is a wiring tray (206). The upper surface of the wiring tray (206) has a cable connection groove (210). The front side of the housing (2) has a lower connecting plate (203) and a locking block (205). The upper surface of the lower connecting plate (203) has an internal thread hole (204). The rear edge of the upper surface of the housing (2) is rotatably connected to a cover plate (1) through a hinge structure (12). The front side of the cover plate (1) has a downwardly extending buckle plate (101). The buckle plate (101) has a latch (102) that is suitable for engaging with the locking block (205). The front side of the cover plate (1) also has an upper connecting plate (103). A screw (3) passes through the center of the upper connecting plate (103). The threaded section of the screw (3) is suitable for threaded engagement with the internal thread hole (204).

2. The multi-core connector box as described in claim 1, characterized in that: The wiring tray (206) is snapped into the inner wall of the box (2).

3. The multi-core connector box as described in claim 2, characterized in that: The wiring tray (206) is rotatably connected to one side inner wall of the box (2).

4. The multi-core connector box as described in claim 3, characterized in that: The inner wall of one side of the box (2) has a cantilever (207), and the outer side of the wiring tray (206) has an end shaft (208), which is suitable for engaging with the cantilever (207) to form a rotating pair.

5. The multi-core connector box as described in claim 4, characterized in that: There are two cantilever arms (207) and two end shafts (208). The top of the cantilever arm (207) is provided with a notch, and the end shaft (208) is adapted to be inserted into the notch and rotate with the cantilever arm (207).

6. The multi-core connector box as described in any one of claims 1 to 5, characterized in that: The bottom of the box (2) has a positioning plate (201) and a fixing plate (202). The positioning plate (201) has a through groove extending from the outer side to the inner side, and the fixing plate (202) has a through hole penetrating the upper and lower surfaces.

7. The multi-core connector box as described in claim 6, characterized in that: There is one positioning plate (201) and two fixing plates (202). The two fixing plates (202) are located on the same side of the box body (2), and the positioning plate (201) is located on the other side of the box body (2).

8. The multi-core connector box as described in any one of claims 1 to 5, characterized in that: The cover plate (1) has a fitting groove (104) on the lower surface of the box body (2), and the top surface of the box body (2) has a fitting strip (209) which is suitable for cooperating with the fitting groove (104) to form a closed sealing surface.

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