Junction box

Abstract

The utility model discloses a junction box, which relates to the technical field of electric power system accessories and comprises a junction box body, a cover plate is arranged at the top of the junction box body, a connector bar is fixedly arranged in the junction box body, a wire inlet hole is arranged on one side wall of the junction box body, and a wire outlet hole is arranged on the other side wall of the junction box body. The junction box body and the cover plate are provided with two groups of quick-release mechanisms close to two ends, the quick-release mechanisms are symmetrically distributed by taking the middle position of the junction box body as a symmetry axis, and the junction box body and the cover plate are provided with reset assemblies close to corners around the junction box body and the cover plate. According to the utility model, the cover plate and the junction box can be dismounted or mounted without using a dismounting tool, which is fast and convenient, and saves time and labor; the reset assembly pushes the cover plate to move upwards to realize separation of the cover plate and the junction box when the cover plate and the junction box are disassembled, so that a worker can take the cover plate conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of power system accessories, in particular to a junction box. Background Art

[0002] In the power system, the junction box is a commonly used device. The junction box is used to connect wires. For example, the junction box can connect the main line with multiple branch lines to transmit the power of the main line to the terminal equipment of each branch line. At present, the junction box and the cover plate are mostly fixed with screws. In this way, when the wiring row inside the junction box is inspected and maintained in the later stage, it is necessary to use a disassembly tool (such as a screwdriver) to disassemble and open it and close it for installation. This disassembly method takes a lot of time; and the thread matching method of the screw is prone to stripping and damage after multiple disassembly. Therefore, it is necessary to propose a junction box solution that solves the above technical problems. Summary of the invention

[0003] The purpose of the utility model is to provide a junction box in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A junction box comprises a junction box body, a cover plate is arranged on the top of the junction box body, a terminal block is fixedly arranged in the junction box body, a wire entry hole is arranged on one side wall of the junction box body, and a wire outlet hole is arranged on the other side wall of the junction box body, quick release mechanisms are arranged near both ends of the junction box body and the cover plate, the quick release mechanisms have two groups and are symmetrically distributed with the middle position of the junction box body as the symmetry axis, reset components are arranged near the four corners of the junction box body and the cover plate, the quick release mechanism locks or unlocks the junction box body and the cover plate, and the reset component pushes the cover plate open so that the bottom of the cover plate does not fit the top of the junction box body.

[0006] Preferably, the quick-release mechanism includes a fixing cylinder and a connecting column, a fixing cylinder is fixedly installed at a bottom position near the end of the junction box body, a connecting column is fixedly installed at a position corresponding to the fixing cylinder at the bottom of the cover plate, the connecting column and the fixing cylinder can be socketed, a through hole is processed at the end of the junction box body near the fixing cylinder, a first connecting rod is slidably arranged in the through hole, a first handle is fixedly arranged at the end of the first connecting rod located outside the junction box body, a through groove is processed on the side of the fixing cylinder near the first connecting rod, a fixing plate is fixedly arranged on the side of the first connecting rod near the through groove, a first spring is sleeved on the first connecting rod between the fixing plate and the junction box body, a groove is processed on the side of the connecting column at a position corresponding to the first connecting rod, and the first connecting rod can cross the through groove of the fixing cylinder and extend into the groove of the connecting column.

[0007] Preferably, the bottom of the connecting column is provided with an inclined portion facing the first connecting rod, and the end of the first connecting rod close to the connecting column is provided with a semi-spherical portion.

[0008] Preferably, the reset assembly includes a positioning cylinder and a positioning column. The positioning cylinder is fixedly installed near the four corners of the junction box body, and the positioning column is fixedly installed at the bottom of the cover plate corresponding to the positioning cylinder. The positioning column and the positioning cylinder can be socketed. A second spring and a slider are sequentially arranged in the positioning cylinder, one end of the second spring is fixedly connected to the bottom of the positioning cylinder, and the other end of the second spring is fixedly connected to the bottom of the slider.

[0009] Preferably, a wire management assembly is fixedly provided at a position corresponding to the wire entry hole on the inner side wall of the junction box body, and a wire management assembly is also fixedly provided at a position corresponding to the wire exit hole on the inner side wall of the junction box body, and the wire management assembly comprises a fixed block, which is fixedly mounted on the inner side wall of the junction box body, and a wire passing hole is processed at a position corresponding to the wire entry hole or the wire exit hole, a guide groove connected to the wire passing hole is processed near the top of the fixed block, a through hole connected to the guide groove is processed at the top of the fixed block, and a accommodating cavity is processed at a position between the wire passing hole and the through hole, a clamping block is slidably provided in the guide groove, a second connecting rod is fixedly provided at one end of the clamping block away from the wire passing hole, the second connecting rod crosses the through hole and extends to the outside of the fixed block, a second handle is fixedly provided at the end of the second connecting rod located outside the fixed block, a third spring is provided in the accommodating cavity, and the third spring is sleeved on the second connecting rod.

[0010] Preferably, an arc portion is processed at one end of the clamping block close to the wire hole.

[0011] Preferably, the number of the wire outlet holes is 2 to 6.

[0012] The beneficial effects of the present invention are as follows: (1) the quick-release mechanism of the present invention replaces the existing screw connection solution, and the cover plate and the junction box can be disassembled or installed without using a disassembly tool, which is quick and convenient, saving time and effort; (2) when the cover plate and the junction box are disassembled, the reset component pushes the cover plate upward to separate the cover plate and the junction box, making it convenient for the staff to take the cover plate; (3) the wire management component can clamp and fix the main line or branch line to avoid mutual interference between multiple branch lines, thereby improving the stability of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2This is a three-dimensional diagram of the junction box body of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the cover plate of the utility model;

[0016] Figure 4 It is a cross-sectional view of the quick-release mechanism of the utility model;

[0017] Figure 5 It is a cross-sectional view of the reset assembly of the utility model;

[0018] Figure 6 It is a cross-sectional view of the cable management assembly of the utility model;

[0019] Figure 7 It is a partial enlarged view of the cable management component of the utility model.

[0020] Description of reference numerals:

[0021] 1. Junction box body; 11. Ear plate; 111. Mounting hole; 12. Wire outlet hole; 13. Wire inlet hole; 14. Through hole;

[0022] 2. Cover plate;

[0023] 3. quick release mechanism; 31. fixing tube; 311. through groove; 32. first connecting rod; 321. semi-spherical part; 33. first handle; 34. connecting column; 341. groove; 342. inclined part; 35. fixing plate; 36. first spring;

[0024] 4. Reset assembly; 41. Positioning cylinder; 42. Sliding block; 43. Positioning column; 44. Second spring;

[0025] 5. Terminal block; 51. Terminal section;

[0026] 6. Cable management assembly; 61. Fixed block; 611. Cable hole; 612. Guide groove; 613. Accommodating cavity; 62. Clamping block; 63. Second connecting rod; 64. Second handle; 65. Third spring;

[0027] 7. Electrical wires. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] like Figure 1 and Figure 2As shown, the utility model provides a junction box, including a junction box body 1, and a cover plate 2 is arranged on the top of the junction box body 1. An ear plate 11 is fixedly arranged on the outside of the junction box body 1, and a mounting hole 111 is arranged on the ear plate 11, and the ear plate 11 is convenient for fixing the junction box body 1 at the target position. A wiring row 5 is fixedly arranged inside the junction box body 1, and a wiring part 51 is arranged on the wiring row 5. The wiring part 51 is fixedly connected to the main line or the branch line by screws to realize circuit connection. An inlet hole 13 is arranged on one side wall of the junction box body 1, and the inlet hole 13 is used for the main line to pass through. An outlet hole 12 is arranged on the other side wall of the junction box body 1, and the outlet hole 12 is used for the branch line to pass through. A quick release mechanism 3 is arranged near the two ends of the junction box body 1 and the cover plate 2. There are two groups of quick release mechanisms 3 and they are symmetrically distributed with the middle position of the junction box body 1 as the symmetry axis. Pulling the two groups of quick release mechanisms 3 at the same time realizes the disassembly of the cover plate 2 and the junction box body 1. The junction box body 1 and the cover plate 2 are provided with reset components 4 near the four corners. In this embodiment, the junction box body 1 has four corners, so four sets of reset components 4 are used, and the four sets of reset components 4 work simultaneously and cooperate with each other. The quick release mechanism 3 locks or unlocks the junction box body 1 and the cover plate 2, and the reset component 4 pushes the cover plate 2 away so that the bottom of the cover plate 2 does not fit the top of the junction box body 1.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, on the basis of the above embodiment, further, the quick release mechanism 3 includes a fixed cylinder 31 and a connecting column 34. The fixed cylinder 31 is fixedly installed at the bottom position near the end of the junction box body 1, and the connecting column 34 is fixedly installed at the bottom of the cover plate 2 at a position corresponding to the fixed cylinder 31, and the connecting column 34 and the fixed cylinder 31 can be sleeved and slidably connected. A through hole 14 is processed at the end of the junction box body 1 near the fixed cylinder 31. A first connecting rod 32 is slidably arranged in the through hole 14, and the end of the first connecting rod 32 located outside the junction box body 1 can be fixedly installed with a first handle 33 by threaded connection. A through groove 311 is processed on the side of the fixed cylinder 31 near the first connecting rod 32. A fixed plate 35 is fixedly installed on the side of the first connecting rod 32 near the through groove 311 by threaded connection. A first spring 36 is sleeved on the first connecting rod 32 between the fixed plate 35 and the junction box body 1, and one end of the first spring 36 contacts the end of the fixed plate 35, and the other end of the first spring 36 contacts the inner side wall of the junction box body 1. A groove 341 is formed on the side of the connecting column 34 at a position corresponding to the first connecting rod 32, and the shape of the groove 341 is the same as the cross-sectional shape of the first connecting rod 32. The first connecting rod 32 can extend into the groove 341 of the connecting column 34 by passing through the through slot 311 of the fixing cylinder 31.

[0031] like Figure 3 and Figure 4As shown, on the basis of the above embodiment, further, the bottom of the connecting column 34 is provided with an inclined portion 342 facing the first connecting rod 32, and the inclined portion 342 is an inclined plane having an angle with the horizontal plane. The inclined portion 342 facilitates the connecting column 34 to squeeze the first connecting rod 32 out of the fixed cylinder 31, and makes room for the connecting column 34 in the fixed cylinder 31. The end of the first connecting rod 32 close to the connecting column 34 is provided with a semi-spherical portion 321, and the semi-spherical portion 321 is semi-spherical. The semi-spherical portion 321 can cooperate with the inclined portion 342 of the connecting column 34, and the connecting column 34 can squeeze the first connecting rod 32 out of the fixed cylinder 31 with more effort.

[0032] like Figure 2 , Figure 3 and Figure 5 As shown, on the basis of the above embodiment, further, the reset component 4 includes a positioning cylinder 41 and a positioning column 43. The positioning cylinder 41 is fixedly installed near the four corners in the junction box body 1, and the positioning column 43 is fixedly installed at the bottom of the cover plate 2 corresponding to the positioning cylinder 41. The positioning column 43 and the positioning cylinder 41 can be connected and slidably connected. The second spring 44 and the slider 42 are sequentially arranged in the positioning cylinder 41, one end of the second spring 44 is fixedly connected to the bottom of the positioning cylinder 41, and the other end of the second spring 44 is fixedly connected to the bottom of the slider 42. The cross section of the slider 42 is the same as the shape of the inner cavity of the positioning cylinder 41. On the one hand, the reset component 4 can help the cover plate 2 to separate from the junction box body 1 during disassembly, which is convenient for the cover plate 2 to be taken, and on the other hand, it can help the cover plate 2 to be quickly positioned with the junction box body 1 during installation, so as to achieve quick installation.

[0033] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, on the basis of the above embodiment, further, a wire management component 6 is fixedly arranged at a position corresponding to the inlet hole 13 on the inner side wall of the junction box body 1, and a wire management component 6 is also fixedly arranged at a position corresponding to the outlet hole 12 on the inner side wall of the junction box body 1. The wire management component 6 includes a fixed block 61, and the fixed block 61 can be fixedly mounted on the inner side wall of the junction box body 1 by screws. A wire passing hole 611 is processed at a position corresponding to the inlet hole 13 or the outlet hole 12 on the fixed block 61, and the wire passing hole 611 is used for the main line or branch line to cross the wire management component 6. A guide groove 612 connected to the wire passing hole 611 is processed near the top of the fixed block 61, and a through hole 14 connected to the guide groove 612 is processed at the top of the fixed block 61, and a receiving cavity 613 is processed at the position between the wire passing hole 611 and the through hole 14. A clamping block 62 is slidably arranged in the guide groove 612, and the guide groove 612 provides a limiting guide function for the clamping block 62. The end of the clamping block 62 away from the wire hole 611 can be fixedly installed with a second connecting rod 63 by means of a threaded connection. The second connecting rod 63 crosses the through hole 14 and extends to the outside of the fixed block 61. The end of the second connecting rod 63 located outside the fixed block 61 is fixedly installed with a second handle by means of a threaded connection. A third spring 65 is arranged in the accommodating cavity 613, and the third spring 65 is sleeved on the second connecting rod 63. Among them, the clamping block 62 is processed with an arc portion at one end close to the wire hole 611, and the arc portion cooperates with the contour of the wire hole 611 to facilitate clamping the wire 7. The number of the outlet holes 12 is 2 to 6, and the number of the outlet holes 12 can be selected according to actual needs. In this embodiment, the number of the outlet holes 12 is 4.

[0034] When working, (1) connect the lines, such as Figure 1 and Figure 2 As shown, the main line is inserted into the interior of the junction box body 1 through the wire entry hole 13 and the wire through hole 611 in turn, and then the end of the main line is fixedly connected to the wiring part 51 of the wiring row 5 by screws; multiple branch lines are inserted into the interior of the junction box body 1 through the wire exit hole 12 and the wire through hole 611 in turn, and then the end of the branch line is fixedly connected to the wiring part 51 of the wiring row 5 by screws to achieve circuit connection. (2) Arrange the lines, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the second handle pulls the second connecting rod 63 to drive the clamping block 62 to slide along the guide groove 612 in the direction away from the wire hole 611, and then the main line (i.e., wire 7) or the branch line (i.e., wire 7) is arranged. After the arrangement is completed, the second handle is released, and the restoring force of the third spring 65 drives the clamping block 62 to move toward the wire hole 611 to clamp and fix the main line or the branch line to avoid mutual interference between multiple branch lines. (3) The fixed installation of the cover plate 2 and the junction box body 1, as shown in FIG. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the positioning column 43 at the bottom of the cover plate 2 is aligned with the positioning cylinder 41 on the junction box body 1. At this time, the connecting column 34 at the bottom of the cover plate 2 is also aligned with the fixing cylinder 31 on the junction box body 1 at the same time; then, the cover plate 2 is pushed toward the junction box body 1, and the connecting column 34 at the bottom of the cover plate 2 slides in the fixing cylinder 31 of the junction box body 1. The inclined portion 342 at the bottom of the connecting column 34 contacts the first connecting rod 32 and squeezes and pushes the first connecting rod 32 to withdraw from the fixing cylinder 31. The connecting column 34 continues to slide downward until the bottom of the cover plate 2 is in contact with the top of the junction box body 1 and stops sliding. At this time, the groove 341 on the side of the connecting column 34 corresponds to the through groove 311 on the fixing cylinder 31. The first connecting rod 32 passes through the through groove 311 and enters the groove 341 under the driving force of the restoring force of the first spring 36. At this time, the connecting column 34 is locked and fixed in the fixing cylinder 31 and cannot move, thereby realizing the fixed installation of the cover plate 2 and the junction box body 1. (4) The cover plate 2 is disassembled and separated from the junction box body 1, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when maintenance is needed, the staff pulls the first connecting rod 32 toward the direction away from the junction box body 1 through the first handles 33 of the two sets of quick-release mechanisms 3 by hand at the same time. When the end of the first connecting rod 32 withdraws from the groove 341 on the side of the connecting column 34, the restoring force of the second spring 44 drives the slider 42 to push the positioning column 43 toward the direction away from the junction box body 1, thereby separating the cover plate 2 from the junction box body 1. Then, the staff takes away the cover plate 2 and can carry out maintenance work.

[0035] The above are only preferred embodiments of the present invention, and do not limit the scope of the present invention. A person skilled in the art should understand that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principles and purposes of the present invention, which should all be included in the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A junction box, comprising a junction box body, a cover plate is arranged on the top of the junction box body, a wiring row is fixedly arranged in the junction box body, a wire inlet hole is arranged on one side wall of the junction box body, and a wire outlet hole is arranged on the other side wall of the junction box body, characterized in that: The junction box body and the cover plate are provided with quick release mechanisms near both ends, and there are two groups of quick release mechanisms which are symmetrically distributed with the middle position of the junction box body as the symmetry axis. The junction box body and the cover plate are provided with reset components near the four corners. The quick release mechanisms lock or unlock the junction box body and the cover plate, and the reset components push the cover plate open so that the bottom of the cover plate does not fit the top of the junction box body.

2. A junction box according to claim 1, characterized in that: The quick-release mechanism includes a fixing cylinder and a connecting column. A fixing cylinder is fixedly installed at a bottom position near the end of the junction box body, a connecting column is fixedly installed at a position corresponding to the fixing cylinder at the bottom of the cover plate, and the connecting column and the fixing cylinder can be socketed. A through hole is processed at the end of the junction box body near the fixing cylinder, a first connecting rod is slidably arranged in the through hole, a first handle is fixedly arranged at the end of the first connecting rod located outside the junction box body, a through groove is processed on the side of the fixing cylinder near the first connecting rod, a fixing plate is fixedly arranged on the side of the first connecting rod near the through groove, a first spring is sleeved on the first connecting rod between the fixing plate and the junction box body, a groove is processed on the side of the connecting column at a position corresponding to the first connecting rod, and the first connecting rod can cross the through groove of the fixing cylinder and extend into the groove of the connecting column.

3. A junction box according to claim 2, characterized in that: The bottom of the connecting column is provided with an inclined portion facing the first connecting rod, and the end of the first connecting rod close to the connecting column is provided with a semi-spherical portion.

4. A junction box according to claim 1, characterized in that: The reset assembly includes a positioning cylinder and a positioning column. The positioning cylinder is fixedly installed near the four corners of the junction box body, and the positioning column is fixedly installed at the bottom of the cover plate corresponding to the positioning cylinder. The positioning column and the positioning cylinder can be socketed. A second spring and a slider are sequentially arranged in the positioning cylinder, one end of the second spring is fixedly connected to the bottom of the positioning cylinder, and the other end of the second spring is fixedly connected to the bottom of the slider.

5. A junction box according to claim 1, characterized in that: A wire management component is fixedly provided at a position corresponding to the wire entry hole on the inner side wall of the junction box body, and a wire management component is also fixedly provided at a position corresponding to the wire exit hole on the inner side wall of the junction box body. The wire management component comprises a fixed block, which is fixedly mounted on the inner side wall of the junction box body, and a wire passing hole is processed at a position corresponding to the wire entry hole or the wire exit hole. A guide groove connected to the wire passing hole is processed near the top of the fixed block, and a through hole connected to the guide groove is processed at the top of the fixed block. A accommodating cavity is processed at a position between the wire passing hole and the through hole, and a clamping block is slidably provided in the guide groove. A second connecting rod is fixedly provided at one end of the clamping block away from the wire passing hole, and the second connecting rod crosses the through hole and extends to the outside of the fixed block. A second handle is fixedly provided at the end of the second connecting rod located outside the fixed block, and a third spring is provided in the accommodating cavity, and the third spring is sleeved on the second connecting rod.

6. A junction box according to claim 5, characterized in that: An arc portion is processed on one end of the clamping block close to the wire hole.

7. A junction box according to claim 1, characterized in that: The number of the wire outlet holes is 2 to 6.

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