Electric power rail

Abstract

The utility model provides an electric power track, and belongs to the technical field of track sockets. The rail comprises a rail strip and a junction box arranged at one end of the rail strip. A wiring structure is arranged in the junction box, the wiring structure comprises a wiring seat provided with a wiring cavity, a screw through hole is formed in one end of the wiring cavity on the wiring seat, and a wiring screw is arranged in the screw through hole; a stop block protruding inwards is arranged on the side wall of the screw penetrating hole, and the stop block abuts against and limits the end of the wiring screw so as to prevent the wiring screw from being separated from the wiring base. The power track is reasonable in structural arrangement, capable of effectively preventing the wiring screws from falling off, good in protection performance and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the field of track socket structure design, in particular to a power track. Background Art

[0002] Track socket is a new type of power socket. Compared with fixed socket, track socket is more flexible to use and has been widely used. Track socket usually includes power track and adapter. The adapter can be assembled at different positions of the power track to draw power. A junction box is set at one end of the power track. The junction box is provided with a wiring structure for connecting external wires. The wiring structure usually includes wiring screws. In actual use, the wiring screws in the existing wiring structure lack limit and are easily completely screwed out and fall off, which brings inconvenience to actual operation. Utility Model Content

[0003] In view of the deficiencies pointed out in the background technology, the utility model provides an electric rail which can prevent the connection screws from falling off.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides an electric track, comprising a track bar and a junction box arranged at one end of the track bar;

[0006] The junction box is provided with a wiring structure, the wiring structure includes a wiring seat provided with a wiring cavity, the wiring seat is provided with a screw through hole at one end of the wiring cavity, and the screw through hole is provided with a wiring screw;

[0007] A stopper protruding inward is provided on the side wall of the screw through hole, and the stopper blocks and limits the end of the connecting screw to prevent the connecting screw from being separated from the connecting seat.

[0008] In some embodiments, a cover is mounted on the wiring seat, and when the cover is closed, it covers the end of the wiring screw and the screw through hole.

[0009] In some embodiments, the cover is rotatably connected to the wiring seat via a connecting shaft, and a buckle structure is provided between the cover and the wiring seat, and the cover is locked by the buckle structure when closed.

[0010] In some embodiments, the buckle structure includes a buckle protrusion and a buckle slot, one of the buckle protrusion and the buckle slot is arranged on the cover, and the other is arranged on the wiring seat.

[0011] In some embodiments, the bottom of the junction box is open, the ends of the connection screws are facing downward, and the cover is installed at the bottom of the wiring seat.

[0012] In some embodiments, the terminal block includes a base and a shell base, the base is fixed on the inner top wall of the terminal box, the shell base is connected to the base, the terminal cavity is formed between the base and the shell base, the screw perforation is provided on the shell base, and the cover is installed on the bottom of the shell base.

[0013] In some embodiments, two sides of the shell seat are snap-fitted to the base, and the middle of the shell seat is fixed to the base by locking screws.

[0014] In some embodiments, a stop step is provided in the screw through hole to abut against the inner side surface of the end of the connecting screw, and the stop step cooperates with the stop block to limit the axial position of the connecting screw;

[0015] The wiring structure also includes a wiring piece with one end extending into the wiring cavity and a wiring frame sleeved on the wiring piece, wherein the wiring frame is a rectangular frame structure and is threadedly connected to the wiring screw;

[0016] The other end of the wiring piece extends out through the positioning hole on the side of the base, and the end of the wiring piece in the wiring cavity is pressed against the base through the shell seat.

[0017] In some embodiments, a mounting groove is provided at the bottom of one end of the track bar, and the junction box is embedded in the mounting groove and fixed by fixing screws;

[0018] The opposite sides of the installation groove are provided with limiting slots arranged along the length direction of the track bar, the two side edges of the junction box are respectively plugged into the two limiting slots, and the outer end surface of the junction box is flush with the end surface of the corresponding end of the track bar.

[0019] In some embodiments, a sloped surface is disposed on the exterior of the stopper.

[0020] The utility model has the following positive effects: (1) In the electric rail of the utility model, by arranging the stopper in the screw hole, after the connection screw is inserted into the screw hole, the stopper blocks the end of the connection screw to limit the position, thereby preventing the connection screw from slipping outward and ensuring the structural integrity. (2) In the electric rail of the utility model, by installing a cover on the connection seat, the end of the connection screw and the screw hole are covered after the cover is closed, and the cover plays a covering role to prevent foreign matter from entering the screw hole and contacting the connection screw, thereby enhancing the safety protection performance of the connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the power rail in the utility model;

[0023] Figure 2 for Figure 1 A partial view of another perspective of the power rail shown;

[0024] Figure 3 It is a structural schematic diagram of the junction box in the utility model;

[0025] Figure 4 for Figure 3 A top view of the junction box;

[0026] Figure 5 For along Figure 4 Sectional view cut along line AA;

[0027] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0028] Figure 7 This is a schematic diagram of the structure of the junction box (cover opened state) in the utility model;

[0029] Figure 8 This is an exploded view of the junction box in the utility model.

[0030] Reference numerals shown in the figure: 1-track bar; 11-installation slot; 12-limiting slot; 2-junction box; 21-junction seat; 210-base; 211-shell seat; 212-positioning hole; 213-support platform; 214-pressing portion; 22-junction cavity; 23-screw hole; 24-junction screw; 241-terminal; 25-block; 251-slope surface; 26-cover; 27-clamping protrusion; 28-clamping slot; 29-junction frame; 20-resisting step; 3-junction piece; 4-locking screw. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The structure of the power rail in this embodiment is shown in Figures 1 to 8 As shown, it includes a track bar 1 and a junction box 2 arranged at one end of the track bar 1; a junction box 2 is provided with a junction structure, which is used for transition between a junction piece and an external wire; the junction structure includes a junction seat 21 provided with a junction cavity 22, a screw through hole 23 is provided on the junction seat 21 at one end of the junction cavity 22, and a junction screw 24 is provided in the screw through hole 23; a stopper 25 protruding inwardly is provided on the side wall of the screw through hole 23, and the stopper 25 blocks and limits the end 241 of the junction screw 24 to prevent the junction screw 24 from detaching from the junction seat 21; in the scheme of this embodiment, by arranging the stopper 25 in the screw through hole 23, after the junction screw 24 is installed in the screw through hole 23, the end 241 of the junction screw 24 is blocked by the stopper 25, thereby preventing the junction screw 24 from slipping outward. During the process of inserting the connection screw 24 , the end 241 squeezes the stopper 25 to cause elastic deformation at the stopper 25 . After the end 241 passes through the stopper 25 , the stopper 25 returns to its original position to resist and limit the end 241 .

[0035] like Figure 6 As shown, the outside of the stopper 25 is provided with a slope surface 251, that is, the slope surface 251 is arranged at the open end facing the screw through hole, so that when the connecting screw 24 is inserted into the screw through hole 23, the slope surface 251 can play a guiding role, reducing the resistance of the stopper 25 to the end head 241, so as to avoid the problem that the connecting screw 24 cannot be installed due to excessive resistance of the outer end of the stopper 25 to the end head 241.

[0036] like Figures 3 to 8 As shown, in order to enhance the safety protection performance of the wiring structure, a cover 26 is installed on the wiring seat 21. When the cover 26 is closed, it covers the end 241 of the wiring screw 24 and the screw through-hole 23. The cover 26 plays a covering role to prevent foreign matter from entering the screw through-hole 23 and contacting the wiring screw 24.

[0037] Further, if Figure 7 As shown, the cover 26 is rotatably connected to the wiring socket 21 via a connecting shaft, and a snap-fit ​​structure is provided between the cover 26 and the wiring socket 21. The cover 26 is locked by the snap-fit ​​structure when closed. Connecting the cover 26 to the wiring socket 21 via the connecting shaft can effectively prevent the cover 26 from falling off and being lost. Moreover, by providing the snap-fit ​​structure, the cover 26 can be effectively and quickly positioned when it is rotated to the closed state, thereby preventing the cover 26 from being easily opened.

[0038] A specific snap-fit ​​structure is illustrated in the accompanying drawings: the snap-fit ​​structure includes a snap-fit ​​protrusion 27 and a snap-fit ​​groove 28, wherein the snap-fit ​​protrusion 27 is arranged on the cover 26, and the snap-fit ​​groove 28 is arranged on the terminal block 21, and when the cover 26 is rotated to the closed state, the snap-fit ​​protrusion 27 and the snap-fit ​​groove 28 form a snap-fit ​​fit, thereby positioning the cover 26; as a variation, in actual operation, the positions of the snap-fit ​​protrusion 27 and the snap-fit ​​groove 28 are interchangeable.

[0039] like Figure 3 , Figure 5 and Figure 6 As shown, in order to simplify the structure of the junction box 2, the bottom of the junction box 2 is set to be open, the end 241 of the wiring screw 24 is downward, and the cover 26 is installed at the bottom of the wiring seat 21. When wiring, the external wire is introduced into the wiring cavity of the junction box 2, and the wiring is completed by screwing the wiring screw 24. The end 241 of the wiring screw 24 is downward, so the screwdriver can be inserted from the bottom opening of the junction box 2 to screw the wiring screw 24, which is easy to operate.

[0040] like Figure 8As shown, the wiring base 21 includes a base 210 and a shell base 211, the base 210 is fixed on the inner top wall of the wiring box 2, the shell base 211 is connected to the base 210, the wiring cavity 22 is formed between the base 210 and the shell base 211, the screw through hole 23 is provided on the shell base 211, and the cover 26 is installed on the bottom of the shell base 211; the wiring base 21 adopts a separate assembly structure of the base 210 and the shell base 211, which is convenient for injection molding and also facilitates the installation of components in the wiring cavity 22. In actual production, the base 210 can be integrally injection molded with the wiring box 2, or the base 210 can be fixed to the wiring box 2 by assembly.

[0041] In order to reliably assemble the shell seat 211 and the base 210, in this embodiment, the two sides of the shell seat 211 are connected to the base 210 by snapping, and the middle part of the shell seat 211 is fixed to the base 210 by locking screws 4. The fixing method combining snapping and locking screws 4 has higher fixing reliability.

[0042] like Figure 6 As shown, a stop step 20 is provided in the screw through hole 23 to abut against the inner side surface of the end 241 of the connecting screw 24. The stop step 20 cooperates with the stop block 25 to limit the axial position of the connecting screw 24, so that the connecting screw 24 cannot move axially and can only rotate around its central axis.

[0043] Further, such as Figures 5 to 8 As shown, the wiring structure also includes a wiring piece 3 with one end extending into the wiring cavity 22 and a wiring frame 29 sleeved on the wiring piece 3. The wiring frame 29 is a rectangular frame structure, which is screwed with the wiring screw 24. When wiring, the end of the wire is inserted into the wiring frame 29, and then the wiring screw 24 is screwed with a screwdriver. During the process of screwing the wiring screw 24, the wiring frame 29 is driven to move relative to the wiring piece 3, so that the end of the wire is pressed between the wiring frame 29 and the wiring piece 3 to achieve connection. The wire-hugging wiring can make the wiring more reliable; the other end of the wiring piece 3 extends out through the positioning hole 212 on the side of the base 210 for connecting to the conductor in the track bar 1, and the end of the wiring piece 3 in the wiring cavity 22 is pressed against the base 210 through the shell seat 211, so that the wiring piece 3 is reliably positioned; specifically, as Figure 6 As shown in the figure: a support platform 213 is provided on the base 210, and a pressing portion 214 is provided on the shell base 211. After the shell base 211 is connected to the base 210, the pressing portion 214 presses the corresponding part of the wiring piece 3 against the support platform 213.

[0044] like Figure 1 and Figure 2As shown, a mounting groove 11 is provided at the bottom of one end of the track bar 1, and the junction box 2 is embedded in the mounting groove 11 and fixed by fixing screws; the opposite sides of the mounting groove 11 are provided with limiting slots 12 arranged along the length direction of the track bar 1, and the two side edges of the junction box 2 are respectively plugged into the two limiting slots 12, so that the junction box 2 is effectively combined with the track bar 1, and the fixed connection is reliable; further, in order to increase the aesthetics of the appearance of the power track, the outer end face of the junction box 2 is arranged to be flush with the end face of the corresponding end of the track bar 1.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An electric track, comprising a track bar (1) and a junction box (2) arranged at one end of the track bar (1); The junction box (2) is provided with a junction structure, the junction structure comprising a junction seat (21) provided with a junction cavity (22), the junction seat (21) being provided with a screw through hole (23) at one end of the junction cavity (22), and a junction screw (24) being provided in the screw through hole (23); It is characterized in that A stopper (25) protruding inward is provided on the side wall of the screw through hole (23), and the stopper (25) blocks and limits the end (241) of the connecting screw (24) to prevent the connecting screw (24) from detaching from the connecting seat (21).

2. The electric rail according to claim 1, characterized in that: The wiring seat (21) is provided with a cover (26), and when the cover (26) is closed, it covers the end (241) and the screw through hole (23) of the wiring screw (24).

3. The electric rail according to claim 2, characterized in that: The cover (26) is rotatably connected to the wiring seat (21) via a connecting shaft, and a buckle structure is provided between the cover (26) and the wiring seat (21). When the cover (26) is closed, it is locked by the buckle structure.

4. The electric rail according to claim 3, characterized in that: The buckle structure comprises a buckle protrusion (27) and a buckle groove (28); one of the buckle protrusion (27) and the buckle groove (28) is arranged on the cover (26), and the other is arranged on the wiring seat (21).

5. The electric rail according to claim 2, characterized in that: The bottom of the junction box (2) is open, the end (241) of the connection screw (24) is facing downward, and the cover (26) is mounted on the bottom of the connection seat (21).

6. The electric rail according to claim 5, characterized in that: The wiring seat (21) comprises a base (210) and a shell seat (211); the base (210) is fixed on the inner top wall of the wiring box (2); the shell seat (211) is connected to the base (210); the wiring cavity (22) is formed between the base (210) and the shell seat (211); the screw through hole (23) is provided on the shell seat (211); and the cover (26) is mounted on the bottom of the shell seat (211).

7. The electric rail according to claim 6, characterized in that: The two sides of the shell seat (211) are clamped with the base (210), and the middle part of the shell seat (211) is fixed to the base (210) by means of locking screws.

8. The electric rail according to claim 6 or 7, characterized in that: The screw through hole (23) is provided with a stop step (20) which abuts against the inner side surface of the end (241) of the connecting screw (24), and the stop step (20) cooperates with the stop block (25) to limit the axial position of the connecting screw (24); The wiring structure also includes a wiring piece (3) with one end extending into the wiring cavity (22) and a wiring frame (29) sleeved on the wiring piece (3); the wiring frame (29) is a rectangular frame structure and is screwed to the wiring screw (24); The other end of the wiring piece (3) extends out through a positioning hole (212) on the side of the base (210), and one end of the wiring piece (3) located in the wiring cavity (22) is pressed against the base (210) through a shell seat (211).

9. The electric rail according to claim 1, characterized in that: A mounting groove (11) is provided at the bottom of one end of the track bar (1), and the junction box (2) is embedded in the mounting groove (11) and fixed by fixing screws; The installation groove (11) is provided with limiting slots (12) arranged along the length direction of the track bar (1) on opposite sides, and the two side edges of the junction box (2) are respectively plugged into the two limiting slots (12), and the outer end surface of the junction box (2) is flush with the end surface of the corresponding end of the track bar (1).

10. The electric rail according to claim 1, characterized in that: The outside of the stopper (25) is provided with a slope surface (251).

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