Electrical junction box

Abstract

The utility model belongs to the technical field of electrical engineering, and discloses an electrical junction box, which comprises a box body and a box cover which are detachably connected, and further comprises a threading pipe as well as a connecting terminal, a fixing assembly and a lifting assembly which are arranged in the box body, a plurality of open holes are formed in the side wall of the box body, the threading pipe is communicated with the open holes, and the fixing assembly comprises a fixing frame. The connecting terminal is arranged in the fixed frame and connected with the fixed frame, the lifting assembly comprises a connecting piece, a screw rod, a lifting seat and a rotating piece, the rotating piece is located on the bottom face of the box body, the screw rod is vertically placed relative to the bottom face of the box body and connected with the rotating piece, the lifting seat is in threaded connection with the screw rod, and the connecting piece is connected with the fixed frame and the lifting seat. The electrical junction box can solve the problems that an existing electrical junction box is small in internal space, wiring operation is limited by space, operation is inconvenient, and meanwhile most connecting terminals are fixed to the bottom face of the electrical junction box and are inconvenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and in particular to an electrical junction box. Background Technology

[0002] Electrical junction boxes are devices used in electrical systems to connect, distribute, and protect wires. They can be classified into different types according to their purpose and installation environment, such as surface-mounted, concealed, and waterproof types, and are widely used in construction, industry, and other fields.

[0003] Electrical junction boxes used in chemical plants present challenges in wiring operations due to their limited internal space. This confinement and inconvenience stem from the fact that most terminals are fixed to the bottom, making installation, removal, and replacement difficult.

[0004] Therefore, there is an urgent need for an electrical junction box to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical junction box that can solve the problems of small internal space, limited space for wiring operations, inconvenient operation, and the fact that most of the connection terminals are fixed on the bottom of the electrical junction box, making replacement inconvenient.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An electrical junction box includes a detachably connected housing and a cover, the electrical junction box further comprising:

[0008] The enclosure includes a conduit, connecting terminals, a fixing component, and a lifting component located inside the housing. The side wall of the housing has several openings, and the conduit communicates with these openings. The fixing component includes a fixing frame, and the connecting terminals are located inside and connected to the fixing frame. The lifting component includes a connector, a screw, a lifting seat, and a rotating component. The rotating component is located on the bottom surface of the housing. The screw is placed vertically relative to the bottom surface of the housing and is connected to the rotating component. The lifting seat is threadedly connected to the screw. The connector connects the fixing frame and the lifting seat.

[0009] As a preferred technical solution for the electrical junction box, the rotating component includes a bearing, the bottom surface of the box body is provided with an assembly hole, the bearing is placed in the assembly hole, and the screw passes through the inner ring of the bearing and is connected to the lifting seat.

[0010] As a preferred technical solution for the electrical junction box, the rotating component further includes a worm gear, and a worm wheel is provided at the end of the screw that is away from the bearing, and the worm gear is connected to the worm wheel in a transmission connection.

[0011] As a preferred technical solution for electrical junction boxes, one end of the worm gear is provided with helical teeth, and the other end is provided with a rotating wheel, wherein the helical teeth are connected to the worm wheel for transmission.

[0012] As a preferred technical solution for the electrical junction box, the lifting assembly further includes two brackets, each bracket including a slide groove. The fixed frame has protrusions on two sides. The two brackets are respectively placed corresponding to the two protrusions and are vertically connected to the bottom of the box body. The protrusions are movably placed in the slide groove.

[0013] As a preferred technical solution for the electrical junction box, the two ends of the connector are respectively connected to the two protrusions, and the lifting seat is connected to the side wall of the connector.

[0014] As a preferred technical solution for electrical junction boxes, the upper surface of the box body is provided with a sealing groove, and the side of the box cover opposite to the box body is provided with a sealing ring. When the box cover and the box body are fastened together, the sealing ring and the sealing groove are interference-fitted.

[0015] As a preferred technical solution for the electrical junction box, the electrical junction box also includes a plug, which can selectively block the conduit.

[0016] As a preferred technical solution for the electrical junction box, the fixing component further includes a locking member and a rubber ring. The rubber ring is fitted and fixed to the inner wall of the fixing frame. The connecting terminal is provided with an assembly groove. The locking member passes through the fixing frame and the rubber ring and is threadedly connected to the assembly groove.

[0017] As a preferred technical solution for electrical junction boxes, the box body, the box cover, and the conduit are all made of glass fiber reinforced polyester.

[0018] The beneficial effects of this utility model are as follows:

[0019] The electrical junction box provided by this utility model connects the connecting terminals to a fixed frame, and the fixed frame is connected to a lifting base via a connector. The lifting base is threadedly connected to a screw, and the screw is connected to a rotating component. By rotating the screw, the lifting base can move up and down along the screw. The connector links the fixed frame to the lifting base, so rotating the screw allows the connecting terminals connected to the fixed frame to move up and down with the lifting base. When workers are performing wiring operations, rotating the screw raises the connecting terminals from the bottom of the box to a certain height, thus avoiding wiring operations inside the box. Wiring operations are not limited by space, making the operation more convenient. Simultaneously, when it is necessary to disassemble the connecting terminals, workers can rotate the screw to raise the fixed frame and connecting terminals to a certain height with the lifting base, and then remove the connecting terminals from the fixed frame for quick disassembly. When it is necessary to install the connection terminal, simply connect the connection terminal to the fixed frame, and then turn the screw to lower the fixed frame and the connection terminal to the bottom of the box along with the lifting seat. This completes the installation of the connection terminal. The installation and removal of the connection terminal is not affected by the box space, allowing the staff to quickly replace the connection terminal. Attached Figure Description

[0020] Figure 1 This is a first structural schematic diagram of the electrical junction box provided by this utility model;

[0021] Figure 2 This is an exploded view of the electrical junction box provided by this utility model;

[0022] Figure 3 This is a partial structural diagram of the electrical junction box provided by this utility model. Figure 1 ;

[0023] Figure 4 This is a partial structural diagram of the electrical junction box provided by this utility model. Figure 2 ;

[0024] Figure 5 This is an exploded view of the connection terminals and fixing components of the electrical junction box provided by this utility model.

[0025] In the picture:

[0026] 1. Box body; 11. Sealing groove; 2. Box cover; 21. Sealing ring; 3. Conduit; 4. Connecting terminal;

[0027] 5. Fixing component; 51. Fixing frame; 511. Protrusion; 52. Locking element;

[0028] 6. Lifting assembly; 61. Connecting part; 62. Screw; 63. Lifting seat; 64. Rotating part; 641. Worm gear; 6411. Helical gear; 6412. Rotary wheel; 642. Worm wheel; 65. Bracket; 651. Slide groove;

[0029] 7. Plug. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] like Figures 1 to 4As shown, this embodiment provides an electrical junction box, including a box body 1, a box cover 2, a conduit 3, connecting terminals 4, a fixing component 5, and a lifting component 6. The connecting terminals 4, fixing component 5, and lifting component 6 are all located inside the box body 1. The box body 1 and the box cover 2 are detachably connected, facilitating easy inspection and maintenance of the connecting terminals 4 by personnel. Several openings are provided on the side wall of the box body 1, and the conduit 3 communicates with these openings, facilitating wire threading by personnel. The conduit 3 also allows for the branching of wires connected to the connecting terminals 4, ensuring a reasonable wire layout. The fixing component 5 includes a fixing frame 51, with the connecting terminals 4 located inside and connected to the fixing frame 51. The lifting component 6 includes a connector 61, a screw 62, a lifting seat 63, and a rotating component 64. The rotating component 64 is located on the bottom surface of the housing 1. The screw 62 is placed vertically relative to the bottom surface of the housing 1 and connected to the rotating component 64. The lifting seat 63 is threadedly connected to the screw 62. Therefore, when the screw 62 is rotated, the lifting seat 63 can move up and down along the screw 62, performing a lifting motion. The connecting component 61 connects the fixed frame 51 and the lifting seat 63. Thus, when the screw 62 is rotated, the fixed frame 51 can move up and down with the lifting seat 63, thereby causing the connecting terminal 4 to move up and down.

[0035] The electrical junction box provided in this embodiment connects the connecting terminal 4 to the fixed frame 51, and the fixed frame 51 is connected to the lifting seat 63 via a connector 61. The lifting seat 63 is threadedly connected to the screw 62, and the screw 62 is connected to the rotating component 64. By rotating the screw 62, the lifting seat 63 can move up and down along the screw 62. The connector 61 connects the fixed frame 51 to the lifting seat 63, so rotating the screw 62 allows the connecting terminal 4 connected to the fixed frame 51 to move up and down with the lifting seat 63. When the operator is performing wiring work, rotating the screw 62 can raise the connecting terminal 4 from the bottom of the box 1 to a certain height, thus avoiding wiring operations inside the box 1. The operator's wiring operations are not limited by space, making the operation more convenient.

[0036] Meanwhile, when it is necessary to disassemble the connecting terminal 4, the operator can rotate the screw 62 to raise the fixed frame 51 and the connecting terminal 4 to a certain height along with the lifting seat 63, and then remove the connecting terminal 4 from the fixed frame 51, thus quickly disassembling the connecting terminal 4. When it is necessary to install the connecting terminal 4, simply connect the connecting terminal 4 to the fixed frame 51, and then rotate the screw 62 to lower the fixed frame 51 and the connecting terminal 4 to the bottom surface of the box 1 along with the lifting seat 63, thus completing the installation of the connecting terminal 4. The installation and disassembly of the connecting terminal 4 are not affected by the space of the box 1, allowing the operator to quickly replace the connecting terminal 4.

[0037] In this embodiment, the rotating component 64 includes a bearing, wherein an assembly hole is provided on the bottom surface of the housing 1, the bearing is placed in the assembly hole, and the screw 62 is connected to the lifting seat 63 after passing through the bearing, thus enabling the screw 62 to rotate smoothly. Preferably, retaining rings can be provided at the front and rear of the bearing to prevent the bearing from shifting when the screw 62 rotates, further improving the stability of the screw 62's rotation.

[0038] Furthermore, the rotating component 64 also includes a worm gear 641, wherein a worm wheel 642 is provided at the end of the screw 62 away from the bearing, and the worm gear 641 is drivingly connected to the worm wheel 642. When the operator needs to adjust the height of the connecting terminal 4, rotating the worm gear 641 will drive the worm wheel 642 to rotate, thereby causing the screw 62 to rotate. The arrangement of the worm wheel 642 and the worm gear 641 reduces the difficulty for the operator to rotate the screw 62, enabling the operator to quickly complete the wiring work and the installation and disassembly work of the connecting terminal 4. Preferably, one end of the worm gear 641 is provided with a helical tooth 6411, and the other end is provided with a rotating wheel 6412, wherein the helical tooth 6411 is drivingly connected to the worm wheel 642. The operator can rotate the worm gear 641 by rotating the rotating wheel 6412, realizing quick and convenient rotation of the screw 62, further reducing the difficulty of operation for the operator.

[0039] As a preferred option, such as Figures 3 to 5 As shown, the lifting assembly 6 also includes two brackets 65, each bracket including a slide groove 651. Two protrusions 511 are provided on two sides of the fixed frame 51. The two brackets 65 are respectively positioned corresponding to the two protrusions 511 and are vertically connected to the bottom of the housing 1. The protrusions 511 are movably positioned within the slide groove 651. When the screw 62 is rotated, causing the lifting seat 63 to move the fixed frame 51 up and down, the protrusions 511 move along the slide groove 651. The brackets 65 guide the movement of the fixed frame 51 and the lifting seat 63, allowing the fixed frame 51 to move more smoothly with the lifting seat 63 when the screw 62 is rotated. Furthermore, the two ends of the connector 61 are connected to the two protrusions 511 respectively, and the lifting seat 63 is connected to the side wall of the connector 61. This allows the connector 61 to more securely connect the fixed frame 51 and the lifting seat 63. Preferably, two protrusions 511 are disposed on two opposite sides of the fixed frame 51. The connector 61 is a U-shaped frame, with both ends of the U-shaped frame connected to the two protrusions 511 respectively. The middle area surrounds the outer perimeter of the fixed frame 51, which allows for a more compact layout among the fixed frame 51, connector 61, lifting seat 63, and screw 62, further improving the rationality of the electrical junction box design. The connector 61 and the protrusions 511 can be connected to each other by adhesive bonding.

[0040] In this embodiment, a sealing groove 11 is provided on the upper end face of the box body 1, and a sealing ring 21 is provided on the side of the box cover 2 opposite to the box body 1. When the box cover 2 and the box body 1 are fastened together, the sealing ring 21 and the sealing groove 11 are press-fitted together. The sealing groove 11 and the sealing ring 21 can improve the sealing performance between the box body 1 and the box cover 2, prevent external impurities and moisture from entering the interior of the box body 1, affecting the performance of the connection terminal 4, and improving the safety of the electrical junction box.

[0041] In this embodiment, the electrical junction box also includes a plug 7, which can selectively seal the conduit 3. When performing wiring work, the plug 7 can be used to seal any unused conduit 3 to prevent moisture and impurities from entering the box 1.

[0042] In this embodiment, the fixing component 5 further includes a locking member 52 and a rubber ring. The rubber ring is fitted and fixed to the inner wall of the fixing frame 51. The connecting terminal 4 has an assembly groove. The locking member 52 passes through the fixing frame 51 and the rubber ring and is threaded into the assembly groove. By providing the rubber ring, scratches can be avoided on the fixing frame 51 and the connecting terminal 4, thus protecting the connecting terminal 4 and the fixing frame 51. The fixing frame 51 has a fixing hole corresponding to the assembly groove. The assembly groove has an internal thread, and the locking member 52 has an external thread. After passing through the fixing hole, the external thread on the outer circumference of the locking member 52 will screw into the internal thread, locking the fixing frame 51, the rubber ring, and the connecting terminal 4 together. In this embodiment, the locking member 52 can be a bolt.

[0043] In this embodiment, the box body 1, the cover 2, and the conduit 3 are all made of glass fiber reinforced polyester. Glass fiber reinforced polyester, commonly known as glass fiber reinforced polyester or polyester fiberglass, is a composite material composed of unsaturated polyester resin and glass fiber. It has advantages such as light weight, high strength, and corrosion resistance, thus enabling the electrical junction box to be lightweight, abrasion-resistant, and corrosion-resistant.

[0044] The working principle of the electrical junction box in this embodiment is as follows: During the wiring operation, the operator can rotate the wheel 6412 to rotate the screw 62. The lifting seat 63 moves vertically upward along the screw 62 as it rotates, thereby driving the fixed frame 51 and the connecting terminal 4 upward through the connector 61 until the connecting terminal 4 rises to the upper end of the box 1. Then, the operator rotates the plug 7 to disengage it from the conduit 3, and passes the multiple wires to be wired into the box 1 through the conduit 3. The wire cores of the multiple wires are then connected to the corresponding wiring holes in the connecting terminal 4. Then, the wheel 6412 is rotated in the opposite direction, causing the lifting seat 63 to drive the fixed frame 51 and the connecting terminal 4 to descend to the bottom of the box 1, thus completing the wiring work.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electrical terminal block comprising a detachably connected block body (1) and a block cover (2), characterized in that The electrical junction box further comprises: The wire pipe (3) and the connecting terminal (4), the fixing assembly (5) and the lifting assembly (6) placed inside the box body (1), the side wall of the box body (1) is provided with a plurality of openings, the wire pipe (3) communicates with the openings; the fixing assembly (5) comprises a fixing frame (51), the connecting terminal (4) is placed inside the fixing frame (51) and is connected with the fixing frame (51); the lifting assembly (6) comprises a connecting piece (61), a screw rod (62), a lifting seat (63) and a rotating piece (64), the rotating piece (64) is located at the bottom surface of the box body (1), the screw rod (62) is placed vertically relative to the bottom surface of the box body (1), and the screw rod (62) is connected with the rotating piece (64), the lifting seat (63) is threadedly connected with the screw rod (62), and the connecting piece (61) connects the fixing frame (51) and the lifting seat (63).

2. The electrical junction box according to claim 1, wherein The rotating piece (64) comprises a bearing, the bottom surface of the box body (1) is provided with a mounting hole, the bearing is placed in the mounting hole, and the screw rod (62) is connected with the lifting seat (63) after penetrating through the inner ring of the bearing.

3. The electrical junction box of claim 2, wherein, The rotating piece (64) further comprises a worm (641), one end of the screw rod (62) is provided with a worm wheel (642) away from the bearing, and the worm (641) is in transmission connection with the worm wheel (642).

4. The electrical junction box of claim 3, wherein, One end of the worm (641) is provided with a helical tooth (6411), and the other end is provided with a rotating wheel (6412); the helical tooth (6411) is in transmission connection with the worm wheel (642).

5. The electrical junction box of claim 1, wherein, The lifting assembly (6) further comprises two supports (65), the support (65) comprises a sliding groove (651), two side edges of the fixing frame (51) are provided with protruding portions (511), two supports (65) are placed correspondingly with two protruding portions (511) respectively and are connected with the bottom of the box body (1) vertically, and the protruding portion (511) is movably placed in the sliding groove (651).

6. The electrical junction box of claim 5, wherein, Two ends of the connecting piece (61) are connected with two protruding portions (511) respectively, and the lifting seat (63) is connected with the side wall of the connecting piece (61).

7. An electrical junction box according to any one of claims 1-6, characterised in that The upper end surface of the box body (1) is provided with a sealing groove (11), one side of the box cover (2) opposite to the box body (1) is provided with a sealing ring (21) correspondingly, the sealing ring (21) is in interference fit with the sealing groove (11) when the box cover (2) and the box body (1) are mutually buckled.

8. The electrical junction box according to any one of claims 1-6, characterized in that, The electrical junction box further comprises a plug (7), and the plug (7) can selectively plug the wire pipe (3).

9. An electrical junction box according to any one of claims 1-6, characterized in that The fixing assembly (5) further comprises a locking piece (52) and a rubber ring, the rubber ring is fixedly attached to the inner wall of the fixing frame (51), the connecting terminal (4) is provided with a mounting groove, and the locking piece (52) is in threaded connection with the mounting groove after penetrating through the fixing frame (51) and the rubber ring.

10. The electrical junction box according to any one of claims 1-6, characterized in that, The box body (1), the box cover (2) and the wire pipe (3) are all made of glass fiber reinforced polyester material.

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