Supporting and fixing device for building electrical installation box

Abstract

The utility model relates to the technical field of building electrical installation boxes, in particular to a supporting and fixing device for a building electrical installation box, which comprises an electrical installation box and a concrete pile foundation, a flange base is arranged at the bottom end of the electrical installation box, and an anti-loosening ring installation groove is arranged at the top end of the flange base. One end of an anti-loosening ring is movably inserted into the anti-loosening ring mounting groove, and the other end of the anti-loosening ring extends out of the anti-loosening ring mounting groove and is arranged on the surface of the nut in a sleeving manner; the nut screwing device has the beneficial effects that when the nut is screwed, the anti-loosening ring is completely retracted into the anti-loosening ring mounting groove firstly, after the nut abuts against the top end of the elastic gasket, the nut continues to be finely adjusted in the screwing direction till the nut is aligned with the inner ring shape of the anti-loosening ring, then one end of the anti-loosening ring extends out of the anti-loosening ring mounting groove again and is arranged on the surface of the nut in a sleeving mode, and the nut is screwed tightly. And the other end of the anti-loosening ring stays in the anti-loosening ring mounting groove, so that the nut is peripherally limited by the anti-loosening ring, and the purpose of preventing the nut from loosening is achieved.

Description

Technical Field

[0001] This utility model relates to the field of building electrical installation boxes, specifically a support and fixing device for building electrical installation boxes. Background Technology

[0002] During construction, electrical installation boxes need to be temporarily erected on the construction site. Various electrical equipment can be installed in the electrical installation boxes, thereby providing protection for the electrical equipment.

[0003] In the prior art, the support and fixing structure of the electrical installation box usually involves first digging a pit in the ground and filling it with concrete pile foundation, then inserting screws into the concrete pile foundation, pre-drilling screw holes on the flange base of the electrical installation box, allowing the screws to pass through the screw holes, and then tightening nuts to achieve the support and fixing of the electrical installation box.

[0004] However, existing support and fixing structures lack effective methods to prevent thread loosening. Electrical installation boxes are usually installed outdoors, where the temperature difference is extreme. The thread friction between screws and nuts tends to decrease or even disappear with temperature changes. In addition, exposure to wind and sun can easily cause nuts to loosen. Utility Model Content

[0005] The purpose of this utility model is to provide a support and fixing device for building electrical installation boxes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a support and fixing device for an electrical installation box in a building, comprising: an electrical installation box and a concrete pile foundation, a flange base provided at the bottom of the electrical installation box, a screw hole provided on the surface of the flange base, one end of a screw being inserted and fixed at the top of the concrete pile foundation, the other end of the screw passing through the screw hole and rotatably connected to a nut, an anti-loosening ring mounting groove provided at the top of the flange base, one end of an anti-loosening ring being movably inserted into the anti-loosening ring mounting groove, and the other end of the anti-loosening ring extending out of the anti-loosening ring mounting groove and fitted onto the surface of the nut.

[0007] Preferably, the anti-loosening ring has a ring structure, with the outer ring of the anti-loosening ring being rectangular and the inner ring of the anti-loosening ring having the same shape as the nut.

[0008] Preferably, a fixed mounting seat is fixed on the inner wall of the bottom end of the anti-loosening ring mounting groove, a movable mounting seat is fixed on the bottom end of the anti-loosening ring, and a spring rod is fixed between the fixed mounting seat and the movable mounting seat.

[0009] Preferably, a support rod is fixed on the inner wall of the anti-loosening ring mounting groove, and the support rod abuts against the middle section of the elastic rod.

[0010] Preferably, a lever window is provided on the surface of the flange base, the lever window is in communication with the anti-loosening ring mounting groove, a lever is slidably connected in the lever window, one end of the lever is fixed to the surface of the anti-loosening ring, and the other end of the lever extends out of the lever window.

[0011] Preferably, a sealing plate groove is provided on the inner wall of the slot of the lever window, one end of the sealing plate is movably inserted into the sealing plate groove, and the other end of the sealing plate is fixed to the surface of the lever.

[0012] Preferably, the screw has a cylindrical rod structure, and an elastic washer is fitted on the surface of the screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The support and fixing device for building electrical installation boxes proposed in this utility model involves first fully retracting the anti-loosening ring into the anti-loosening ring mounting groove when tightening the nut. After the nut abuts against the top of the elastic washer, the nut is further finely adjusted in the tightening direction until the nut is aligned with the inner ring shape of the anti-loosening ring. Then, one end of the anti-loosening ring is allowed to extend out of the anti-loosening ring mounting groove and fit onto the surface of the nut, while the other end of the anti-loosening ring remains in the anti-loosening ring mounting groove. This achieves the purpose of circumferentially limiting the nut with the anti-loosening ring, thereby preventing the nut from loosening. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 Schematic diagram of the cross-sectional structure of the anti-loosening ring mounting groove;

[0019] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Electrical installation box; 2. Flange base; 3. Concrete pile foundation; 4. Screw; 5. Screw hole; 6. Nut; 7. Anti-loosening ring mounting groove; 8. Anti-loosening ring; 9. Toggle bar window; 10. Toggle bar; 11. Fixed mounting base; 12. Movable mounting base; 13. Elastic rod; 14. Support rod; 15. Sealing plate groove; 16. Sealing plate; 17. Elastic gasket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a support and fixing device for an electrical installation box in a building, comprising: an electrical installation box 1 and a concrete pile foundation 3. The bottom end of the electrical installation box 1 is provided with a flange base 2, and a screw hole 5 is opened on the surface of the flange base 2. One end of a screw 4 is inserted and fixed to the top end of the concrete pile foundation 3. The other end of the screw 4 passes through the screw hole 5 and is rotatably connected to a nut 6. The top end of the flange base 2 is provided with an anti-loosening ring mounting groove 7. One end of an anti-loosening ring 8 is movably inserted into the anti-loosening ring mounting groove 7. The other end of the anti-loosening ring 8 extends out of the anti-loosening ring mounting groove 7 and is sleeved on the surface of the nut 6. The anti-loosening ring 8 has a ring structure. The outer ring of the anti-loosening ring 8 is rectangular, and the inner ring shape of the anti-loosening ring 8 is the same as that of the nut 6. The screw 4 has a cylindrical rod structure, and an elastic washer 17 is sleeved on the surface of the screw 4.

[0023] In actual use, concrete pile foundation 3 is first poured on the ground, and screws 4 are inserted during pouring. Screw holes 5 are opened on the flange base 2 at the bottom of the electrical installation box 1. After the concrete pile foundation 3 is poured, the flange base 2 at the bottom of the electrical installation box 1 is placed on the top of the concrete pile foundation 3, and the screws 4 are passed through the screw holes 5. Then, the elastic washer 17 is put on the rod of the screw 4, and then the nut 6 is screwed on. This support and fixing device for building electrical installation boxes, when tightening the nut 6, first let the anti-loosening ring 8 retract completely into the anti-loosening ring mounting groove 7. After the nut 6 is against the top of the elastic washer 17, continue to finely adjust the nut 6 in the tightening direction until the nut 6 is aligned with the inner ring shape of the anti-loosening ring 8. Then let one end of the anti-loosening ring 8 extend out of the anti-loosening ring mounting groove 7 and put on the surface of the nut 6. The other end of the anti-loosening ring 8 stays in the anti-loosening ring mounting groove 7, thereby realizing the circumferential limitation of the nut 6 by the anti-loosening ring 8, and thus achieving the purpose of preventing the nut 6 from loosening.

[0024] Example 2: Based on Example 1, in order to achieve position control of the anti-loosening ring 8, a fixed mounting seat 11 is fixed on the inner wall of the bottom end of the anti-loosening ring mounting groove 7, a movable mounting seat 12 is fixed on the bottom end of the anti-loosening ring 8, a spring rod 13 is fixed between the fixed mounting seat 11 and the movable mounting seat 12, a support rod 14 is fixed on the inner wall of the anti-loosening ring mounting groove 7, the support rod 14 abuts against the middle section of the spring rod 13, a lever window 9 is opened on the surface of the flange base 2, the lever window 9 is in communication with the anti-loosening ring mounting groove 7, a lever 10 is slidably connected in the lever window 9, one end of the lever 10 is fixed on the surface of the anti-loosening ring 8, and the other end of the lever 10 extends out of the lever window 9.

[0025] When it is necessary for the anti-loosening ring 8 to be fully retracted into the anti-loosening ring mounting groove 7, the lever 10 is moved, causing it to slide downwards in the lever window 9. The movement of the lever 10 drives the anti-loosening ring 8 downwards, thus causing the anti-loosening ring 8 to be fully retracted into the anti-loosening ring mounting groove 7. The movement of the anti-loosening ring 8 drives the movable mounting base 12 downwards, which in turn drives one end of the spring rod 13 downwards. The other end of the spring rod 13 is fixed to the fixed mounting base 11, which is fixed to the inner wall of the bottom end of the anti-loosening ring mounting groove 7, thereby causing the spring rod 13 to... The other end remains stationary, and the support rod 14 abuts against the middle section of the elastic rod 13, causing the elastic rod 13 to bend. When it is necessary to extend one end of the anti-loosening ring 8 out of the anti-loosening ring mounting groove 7 again, simply release the lever 10. The elastic rod 13 returns to its original shape under its own elasticity, causing one end of the elastic rod 13 fixed on the movable mounting base 12 to move upward. The movement of the elastic rod 13 drives the movable mounting base 12 to move upward, and the movable mounting base 12 pushes the anti-loosening ring 8 upward, causing one end of the anti-loosening ring 8 to extend out of the anti-loosening ring mounting groove 7 again.

[0026] Example 3: Based on Example 2, in order to prevent debris from entering the anti-loosening ring mounting groove 7 from the lever window 9 and causing the movement of the anti-loosening ring 8 to be obstructed, a sealing plate groove 15 is provided on the inner wall of the groove of the lever window 9. One end of the sealing plate 16 is movably inserted into the sealing plate groove 15, and the other end of the sealing plate 16 is fixed to the surface of the lever 10.

[0027] In normal operation, the lever 10 is positioned at the top of the lever window 9, and the sealing plate 16 is fixed below the lever 10 to seal the lever window 9, thereby preventing debris from entering the anti-loosening ring mounting groove 7 from the lever window 9. At the same time, when the lever 10 is moved downward, the sealing plate 16 can be inserted into the extension of the sealing plate groove 15, thereby preventing the sealing plate 16 from obstructing the movement of the lever 10.

[0028] In actual use, concrete pile foundation 3 is first poured on the ground, and screws 4 are inserted during pouring. A screw hole 5 is provided on the flange base 2 at the bottom of the electrical installation box 1. After the concrete pile foundation 3 is poured, the flange base 2 at the bottom of the electrical installation box 1 is placed on top of the concrete pile foundation 3, and the screws 4 are passed through the screw hole 5. Then, the elastic washer 17 is fitted onto the shaft of the screw 4, and the nut 6 is tightened. This is a support and fixing device for building electrical installation boxes. When tightening the nut 6, the anti-loosening ring 8 is first fully retracted into the anti-loosening ring mounting groove 7. After the nut 6 is against the top of the elastic washer 17, the tightening continues. Fine-tighten nut 6 in the tightening direction until nut 6 aligns with the inner ring shape of anti-loosening ring 8. Then, allow one end of anti-loosening ring 8 to extend out of anti-loosening ring mounting groove 7 and fit onto the surface of nut 6, while the other end of anti-loosening ring 8 remains in anti-loosening ring mounting groove 7. This achieves circumferential restraint of nut 6 by anti-loosening ring 8, thereby preventing nut 6 from loosening. When it is necessary to fully retract anti-loosening ring 8 into anti-loosening ring mounting groove 7, move lever 10 to slide downward in lever window 9. The movement of lever 10 drives anti-loosening ring 8 downward, thereby fully retracting anti-loosening ring 8 into anti-loosening ring mounting groove 7. The movement of ring 8 causes the movable mounting base 12 to move downwards, which in turn causes one end of the spring rod 13 to move downwards. The other end of the spring rod 13 is fixed to the fixed mounting base 11, which is fixed to the inner wall of the bottom end of the anti-loosening ring mounting groove 7. This keeps the other end of the spring rod 13 stationary, while the support rod 14 abuts against the middle section of the spring rod 13, causing the spring rod 13 to bend. When it is necessary to extend one end of the anti-loosening ring 8 out of the anti-loosening ring mounting groove 7 again, simply release the lever 10. The spring rod 13 will return to its original shape under its own elasticity, thus fixing the spring rod 13 to the movable mounting base 12. One end of the mounting base 12 moves upward, and the movement of the spring rod 13 drives the movable mounting base 12 to move upward. The movable mounting base 12 then pushes the anti-loosening ring 8 upward, so that one end of the anti-loosening ring 8 extends out of the anti-loosening ring mounting groove 7 again. In normal state, the lever 10 is at the top of the lever window 9, and the sealing plate 16 is fixed below the lever 10 to block the lever window 9, thereby preventing debris from entering the anti-loosening ring mounting groove 7 from the lever window 9. At the same time, when the lever 10 is pushed downward, the sealing plate 16 can be inserted into the extension of the sealing plate groove 15, thereby preventing the sealing plate 16 from obstructing the movement of the lever 10.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support and fixing device for a building electrical installation box, comprising: An electrical installation box (1) and a concrete pile foundation (3) are provided. The bottom end of the electrical installation box (1) is provided with a flange base (2). A screw hole (5) is opened on the surface of the flange base (2). One end of a screw (4) is inserted and fixed at the top end of the concrete pile foundation (3). The other end of the screw (4) passes through the screw hole (5) and the other end of the screw (4) is rotatably connected to a nut (6). The flange base (2) is provided with an anti-loosening ring mounting groove (7). One end of an anti-loosening ring (8) is movably inserted into the anti-loosening ring mounting groove (7). The other end of the anti-loosening ring (8) extends out of the anti-loosening ring mounting groove (7) and is sleeved on the surface of the nut (6).

2. The support and fixing device for building electrical installation boxes according to claim 1, characterized in that: The anti-loosening ring (8) has a ring structure. The outer ring of the anti-loosening ring (8) is rectangular, and the inner ring of the anti-loosening ring (8) has the same shape as the nut (6).

3. A support and fixing device for a building electrical installation box according to claim 2, characterized in that: A fixed mounting seat (11) is fixed on the inner wall of the bottom end of the anti-loosening ring mounting groove (7), and a movable mounting seat (12) is fixed on the bottom end of the anti-loosening ring (8). A spring rod (13) is fixed between the fixed mounting seat (11) and the movable mounting seat (12).

4. A support and fixing device for a building electrical installation box according to claim 3, characterized in that: A support rod (14) is fixed on the inner wall of the anti-loosening ring mounting groove (7), and the support rod (14) abuts against the middle section of the elastic rod (13).

5. A support and fixing device for a building electrical installation box according to claim 4, characterized in that: A lever window (9) is provided on the surface of the flange base (2). The lever window (9) is connected to the anti-loosening ring mounting groove (7). A lever (10) is slidably connected in the lever window (9). One end of the lever (10) is fixed on the surface of the anti-loosening ring (8), and the other end of the lever (10) extends out of the lever window (9).

6. A support and fixing device for a building electrical installation box according to claim 5, characterized in that: A sealing plate groove (15) is provided on the inner wall of the groove of the lever window (9). One end of the sealing plate (16) is movably inserted into the sealing plate groove (15), and the other end of the sealing plate (16) is fixed on the surface of the lever (10).

7. A support and fixing device for a building electrical installation box according to claim 6, characterized in that: The screw (4) has a cylindrical rod structure, and an elastic washer (17) is fitted on the surface of the screw (4).

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