Plastic housing for electrical device

Abstract

The utility model provides a plastic shell for an electrical device, which is suitable for the technical field of plastic shells, and adopts the scheme that the plastic shell for the electrical device comprises a first assembly plate, second assembly plates, a rotating seat, a protective plate, supporting leg holes and a concentric-square-shaped block, the second assembly plates are symmetrically and fixedly arranged on the front and rear side surfaces of the first assembly plate, and the rotating seat is arranged on the rotating seat; rotating seats are symmetrically and fixedly connected to the upper surface of the first assembling plate, protective plates are rotatably connected to the interiors of the two rotating seats, four supporting foot holes are symmetrically formed in the bottom of the first assembling plate, and four concentric-square-shaped blocks are symmetrically and fixedly connected to the front side face and the rear side face of the first assembling plate; the first assembling plate and the second assembling plate can be assembled or separated by installing the limiting mechanism, when the surface of the second assembling plate is damaged, replacement and maintenance are convenient, and meanwhile heat dissipation holes of the electrical device can be protected; the utility model is also suitable for the plastic housing field.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic shells, in particular to a plastic shell for an electrical device. Background Art

[0002] In order to protect the outer shell of an electrical device (electrical control box), a plastic shell needs to be installed for the electrical device. Existing plastic shells mostly adopt an integrated design. During the use of the plastic shell, if the surface is squeezed or collided and damaged, the entire plastic shell must be replaced. It is inconvenient to disassemble the damaged part for replacement and maintenance, which reduces the practicality of the plastic shell. At the same time, the heat dissipation holes of the existing plastic shell are hollow. When the electrical device is shut down, the existing plastic shell is not convenient for protecting the heat dissipation holes of the electrical device, which reduces the protective performance of the plastic shell.

[0003] Therefore, it is necessary to provide a new plastic housing for electrical devices to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a plastic housing for an electrical device.

[0005] The plastic housing for an electrical device provided by the utility model comprises: a first assembly plate, a second assembly plate, a rotating seat, a protective plate, a leg hole and a circular block, the second assembly plate is symmetrically fixedly installed on the front and rear sides of the first assembly plate, the upper surface of the first assembly plate is symmetrically fixedly connected with the rotating seat, the two rotating seats are internally rotatably connected with the protective plate, four leg holes are symmetrically opened on the bottom of the first assembly plate, and four circular blocks are symmetrically fixedly connected on the front and rear sides of the first assembly plate; a limiting mechanism, four limiting mechanisms are symmetrically installed inside the second assembly plate, and the first assembly plate and the second assembly plate are fixedly connected by sliding the limiting mechanisms in cooperation with the circular block. The two assembly plates are firmly connected, and the two second assembly plates are placed close to the front and rear sides of the first assembly plate. The circular block enters the limiting mechanism, and the first assembly plate and the second assembly plate are assembled or separated through the limiting mechanism. When the second assembly plate is damaged, the second assembly plate is inspected and maintained. When the electrical device protected by the first assembly plate is started, the protective plate is rotated and moved to the top of the first assembly plate to ensure normal heat dissipation of the electrical device. When the electrical device inside the first assembly plate is turned off, the protective plate is rotated and moved to the side surface of the first assembly plate close to the rotating seat to protect the heat dissipation holes of the electrical device. The support leg holes are convenient for placing the support legs of the electrical device.

[0006] Preferably, the surface of the rotating seat away from the first assembly plate is fixedly connected to the first limiting block, the surface of the first assembly plate is fixedly connected to the second limiting block, and the second limiting block is located on one side of the rotating seat, and the surface of the first assembly plate close to the rotating seat is symmetrically fixedly connected to the transmission seat, and the inner wall of the transmission seat is slidably connected to the moving block, and the inner wall of the transmission seat is rotatably connected to the screw rod, and the threaded surface of the screw rod is meshed with the inner wall of the circular hole of the moving block. When the protective plate moves to the side of the first assembly plate close to the rotating seat, the screw rod is rotated, the screw rod rotates on the inner wall of the transmission seat, and the threaded surface of the screw rod contacts the inner wall of the circular hole of the moving block, moving the moving block to the surface of the first limiting block, and the side surface of the first assembly plate close to the rotating seat is firmly assembled with the protective plate. When the protective plate moves to the top of the first assembly plate, the second limiting block supports the protective plate to prevent the surface of the protective plate from contacting the upper surface of the first assembly plate and causing wear on the upper surface of the first assembly plate.

[0007] Preferably, the upper surface of the first assembly plate is symmetrically fixedly connected to the buckle seat, and the inner wall of the buckle seat is slidably mounted with a buckle block, and the inner wall of the buckle seat is symmetrically provided with a slide groove, and the left and right sides of the buckle block are symmetrically fixedly connected to the slider, and the slider slides on the inner wall of the slide groove, and the side of the buckle block close to the buckle seat is symmetrically fixedly connected to the second spring, and the side of the second spring away from the buckle block is fixedly connected to the inner wall of the buckle seat. When the protective plate moves to the top of the first assembly plate, the buckle block is pressed into the inside of the buckle seat, the second spring is squeezed and contracted, and the slider slides along the inner wall of the slide groove, and the second limiting block supports the protective plate. When the buckle block is released, the second spring resets and expands, and the buckle block is moved out of the inside of the buckle seat. The buckle block contacts the surface of the protective plate, and the upper surface of the first assembly plate is firmly assembled with the protective plate.

[0008] The cam is fixedly provided with a first spring which is fixed on the surface of the cam and a second spring which is fixed on the surface of the cam, so that the cam can move relative to the first spring when the cam is in a state of rotation and the second spring is moved along the axis of the cam.

[0009] Preferably, the edge of the driving bar is provided with a rounded corner, which reduces the friction force at the edge of the driving bar. When the driving bar is pressed, the edge of the driving bar reduces the wear on the surface of the finger.

[0010] Preferably, the first assembly plate, the second assembly plate and the protective plate are made of PTFE material, which has a low friction coefficient and high chemical resistance. It also has excellent bending strength, electrical resistance, weather resistance and thermal stability, and can provide excellent strength, weather resistance and electrical insulation in hot and humid environments.

[0011] Compared with the related art, the plastic housing for electrical devices provided by the present invention has the following beneficial effects:

[0012] The utility model provides a plastic housing for an electrical device:

[0013] 1. By installing a limiting mechanism, the first assembly board and the second assembly board can be assembled or separated. When the surface of the second assembly board is damaged, it is convenient for replacement and maintenance. At the same time, the heat dissipation holes of the electrical device can be protected.

[0014] 2. The first assembly plate, the second assembly plate and the protective plate are made of PTFE material. PTFE material has a low friction coefficient and high chemical resistance. It also has excellent bending strength, electrical resistance, weather resistance and thermal stability. It can provide excellent strength, weather resistance and electrical insulation in hot and humid environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0016] Figure 2 A schematic diagram of the split structure provided by the utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the buckle seat provided by the utility model;

[0018] Figure 4 A schematic cross-sectional view of the transmission seat provided by the present utility model;

[0019] Figure 5 This is a schematic diagram of the limiting mechanism structure provided by the utility model.

[0020] Numbers in the figure: 1. First assembly plate; 2. Second assembly plate; 3. Rotating seat; 4. Protective plate; 5. Limiting mechanism; 51. Limiting mounting groove; 52. Connecting plate; 53. Driving bar; 54. Guide groove; 55. Guide block; 56. First spring; 6. Support foot hole; 7. Reciprocating block; 8. First limiting block; 9. Second limiting block; 10. Snap seat; 11. Snap block; 12. Slide groove; 13. Slider; 14. Second spring; 15. Transmission seat; 16. Moving block; 17. Screw. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the plastic housing for electrical devices includes: a first assembly plate 1, a second assembly plate 2, a rotating seat 3, a protective plate 4, a support leg hole 6 and a circular block 7, the first assembly plate 1 is symmetrically fixed with the second assembly plate 2 on the front and rear sides, the upper surface of the first assembly plate 1 is symmetrically fixedly connected with the rotating seat 3, the two rotating seats 3 are internally rotatably connected with the protective plate 4, the bottom of the first assembly plate 1 is symmetrically provided with four support leg holes 6, the front and rear sides of the first assembly plate 1 are symmetrically fixed with four circular blocks 7; a limiting mechanism 5, four limiting mechanisms 5 are symmetrically installed inside the second assembly plate 2, and the first assembly plate 1 and the second assembly plate are fixedly connected by sliding the limiting mechanism 5 in cooperation with the circular block 7. The plates 2 are firmly connected, and the two second assembly plates 2 are placed close to the front and rear sides of the first assembly plate 1. The circular block 7 enters the limiting mechanism 5, and the first assembly plate 1 and the second assembly plate 2 are assembled or separated through the limiting mechanism 5. When the second assembly plate 2 is damaged, the second assembly plate 2 is inspected and maintained. When the electrical device protected by the first assembly plate 1 is started, the protective plate 4 is rotated and the protective plate 4 is moved to the top of the first assembly plate 1 to ensure normal heat dissipation of the electrical device. When the electrical device inside the first assembly plate 1 is turned off, the protective plate 4 is rotated and the protective plate 4 is moved to the side surface of the first assembly plate 1 close to the rotating seat 3 to protect the heat dissipation holes of the electrical device. The support leg holes 6 are convenient for placing the support legs of the electrical device.

[0023] Example 1:

[0024] In the specific implementation process, Figure 2 and Figure 4As shown, the surface of the rotating seat 3 away from the first assembly plate 1 is fixedly connected to the first limiting block 8, the upper surface of the first assembly plate 1 is fixedly connected to the second limiting block 9, and the second limiting block 9 is located on one side of the rotating seat 3, and the surface of the first assembly plate 1 close to the rotating seat 3 is symmetrically fixedly connected to the transmission seat 15, the inner wall of the transmission seat 15 is slidingly connected to the moving block 16, the inner wall of the transmission seat 15 is rotatably connected to the screw rod 17, and the threaded surface of the screw rod 17 is engaged with the inner wall of the circular hole of the moving block 16, and the moving block 16 is moved to the surface of the first limiting block 8, and the side surface of the first assembly plate 1 close to the rotating seat 3 is firmly assembled with the protective plate 4. When the protective plate 4 moves to the top of the first assembly plate 1, the second limiting block 9 supports the protective plate 4 to prevent the surface of the protective plate 4 from contacting the upper surface of the first assembly plate 1 and causing wear on the upper surface of the first assembly plate 1.

[0025] refer to Figure 2 and Figure 3 As shown, the upper surface of the first assembly plate 1 is symmetrically fixedly connected with a snap seat 10, and a snap block 11 is slidably installed on the inner wall of the snap seat 10, and a slide groove 12 is symmetrically opened on the inner wall of the snap seat 10, and the snap block 11 is symmetrically fixedly connected with a slider 13 on the left and right sides, and the slider 13 slides on the inner wall of the slide groove 12, and the snap block 11 close to the snap seat 10 is symmetrically fixedly connected with a second spring 14, and the second spring 14 is fixedly connected to the inner wall of the snap seat 10 on the side away from the snap block 11. When the protective plate 4 moves to the top of the first assembly plate 1, the snap block 11 is pressed into the inside of the snap seat 10, the second spring 14 is squeezed and contracted, and the slider 13 slides along the inner wall of the slide groove 12, and the second limiting block 9 supports the protective plate 4, releases the snap block 11, and the second spring 14 resets and expands, moving the snap block 11 out of the inside of the snap seat 10, and the snap block 11 contacts the surface of the protective plate 4, so that the upper surface of the first assembly plate 1 and the protective plate 4 are firmly assembled.

[0026] refer to Figure 1 and Figure 5As shown, the limiting mechanism 5 includes a limiting mounting groove 51, a connecting plate 52, a driving strip 53, a guide groove 54, a guide block 55 and a first spring 56. Four limiting mounting grooves 51 are symmetrically opened inside the second assembly plate 2, and the support leg hole 6 is slidably connected with the limiting mounting groove 51. The connecting plate 52 is slidably installed on the inner wall of the limiting mounting groove 51, and the connecting plate 52 is slidably connected with the rectangular hole of the round-shaped block 7. The surface of the connecting plate 52 is fixedly connected with the driving strip 53. The inner wall of the limiting mounting groove 51 is symmetrically opened with a guide groove 54. The guide blocks 55 are symmetrically fixedly connected on both sides of the connecting plate 52. The surface is fixedly connected with a first spring 56, and the side of the first spring 56 away from the guide block 55 is fixedly connected to the inner wall of the guide groove 54. The two second assembly plates 2 are moved close to the first assembly plate 1. Before the circular block 7 enters the limit installation groove 51, the driving bar 53 is pressed to drive the connection plate 52 into the limit installation groove 51. The guide block 55 slides along the inner wall of the guide groove 54. The first spring 56 is squeezed and contracted. After the circular block 7 enters the limit installation groove 51, the driving bar 53 is released, and the first spring 56 is reset and opened, sending the connection plate 52 into the rectangular hole of the circular block 7, and the first assembly plate 1 and the second assembly plate 2 are firmly assembled.

[0027] refer to Figure 5 As shown, the edge of the driving bar 53 is rounded to reduce the friction at the edge of the driving bar 53 . When the driving bar 53 is pressed, the edge of the driving bar 53 reduces the wear on the surface of the finger.

[0028] Example 2:

[0029] refer to Figure 1 and Figure 2 As shown, the first assembly plate 1, the second assembly plate 2 and the protective plate 4 are made of PTFE material. PTFE material has a low friction coefficient and high chemical resistance. It also has excellent bending strength, electrical resistance, weather resistance and thermal stability, and can provide excellent strength, weather resistance and electrical insulation in hot and humid environments.

[0030] Working principle: When the plastic housing for the electrical device of the present invention is in use, the two second assembly plates 2 are brought close to the front and rear sides of the first assembly plate 1, and the circular block 7 enters the interior of the limiting mechanism 5. Through the limiting mechanism 5, the first assembly plate 1 and the second assembly plate 2 are assembled or separated. The two second assembly plates 2 are brought close to the first assembly plate 1. Before the circular block 7 enters the interior of the limiting installation groove 51, the driving bar 53 is pressed to drive the connecting plate 52 to be received into the interior of the limiting installation groove 51. The guide block 55 slides along the inner wall of the guide groove 54. The first spring 56 is squeezed and contracted. After the circular block 7 enters the interior of the limiting installation groove 51, the driving bar 53 is released, and the first spring 56 is reset and opened, sending the connecting plate 52 into the circular block. Inside the rectangular hole of block 7, the first assembly plate 1 and the second assembly plate 2 are firmly assembled, reducing the friction at the edge of the drive bar 53. When pressing the drive bar 53, the edge of the drive bar 53 reduces the wear on the surface of the finger. When the second assembly plate 2 is damaged, the second assembly plate 2 is inspected and maintained. When the electrical device protected by the first assembly plate 1 is started, the protective plate 4 is rotated and the protective plate 4 is moved to the top of the first assembly plate 1 to ensure normal heat dissipation of the electrical device. When the electrical device inside the first assembly plate 1 is turned off, the protective plate 4 is rotated and the protective plate 4 is moved to the side surface of the first assembly plate 1 close to the rotating seat 3 to protect the heat dissipation holes of the electrical device. The support leg holes 6 are convenient for placing the support legs of the electrical device.

[0031] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic housing for an electrical device, characterized in that: include: A first assembly plate (1), a second assembly plate (2), a rotating seat (3), a protective plate (4), a support leg hole (6) and a circular block (7), wherein the second assembly plate (2) is symmetrically fixedly installed on the front and rear sides of the first assembly plate (1), the rotating seat (3) is symmetrically fixedly connected to the upper surface of the first assembly plate (1), the two rotating seats (3) are internally rotatably connected with the protective plate (4), the bottom of the first assembly plate (1) is symmetrically provided with four support leg holes (6), and the front and rear sides of the first assembly plate (1) are symmetrically fixedly connected with four circular blocks (7); The limiting mechanism (5) is symmetrically installed with four limiting mechanisms (5) inside the second assembly plate (2). The first assembly plate (1) and the second assembly plate (2) are firmly connected by sliding the limiting mechanisms (5) and cooperating with the circular block (7).

2. The plastic housing for an electrical device according to claim 1, wherein: A first limiting block (8) is fixedly connected to the surface of the rotating seat (3) away from the first assembly plate (1), and a second limiting block (9) is fixedly connected to the upper surface of the first assembly plate (1), and the second limiting block (9) is located on one side of the rotating seat (3).

3. The plastic housing for an electrical device according to claim 1, wherein: A buckle seat (10) is symmetrically fixedly connected to the upper surface of the first assembly plate (1), and a buckle block (11) is slidably mounted on the inner wall of the buckle seat (10).

4. The plastic housing for an electrical device according to claim 3, wherein: The inner wall of the buckle seat (10) is symmetrically provided with a slide groove (12), and the left and right sides of the buckle block (11) are symmetrically fixedly connected with a slide block (13), and the slide block (13) slides on the inner wall of the slide groove (12), and the side of the buckle block (11) close to the buckle seat (10) is symmetrically fixedly connected with a second spring (14), and the side of the second spring (14) away from the buckle block (11) is fixedly connected to the inner wall of the buckle seat (10).

5. The plastic housing for an electrical device according to claim 1, wherein: The surface of the first assembly plate (1) close to the rotating seat (3) is symmetrically fixedly connected to a transmission seat (15), the inner wall of the transmission seat (15) is slidably connected to a moving block (16), the inner wall of the transmission seat (15) is rotatably connected to a screw rod (17), and the threaded surface of the screw rod (17) is meshed with the inner wall of the circular hole of the moving block (16).

6. The plastic housing for an electrical device according to claim 1, wherein: The limiting mechanism (5) includes a limiting installation groove (51), a connecting plate (52), a driving bar (53), a guide groove (54), a guide block (55) and a first spring (56). Four limiting installation grooves (51) are symmetrically opened inside the second assembly plate (2), and the support leg hole (6) is slidably connected to the limiting installation groove (51). The connecting plate (52) is slidably installed on the inner wall of the limiting installation groove (51), and the connecting plate (52) is slidably connected to the rectangular hole of the circular block (7). The driving bar (53) is fixedly connected to the surface of the connecting plate (52). The guide grooves (54) are symmetrically opened on the inner wall of the limiting installation groove (51). The guide blocks (55) are symmetrically fixedly connected on both sides of the connecting plate (52). The surface of the guide block (55) is fixedly connected to the first spring (56), and the side of the first spring (56) away from the guide block (55) is fixedly connected to the inner wall of the guide groove (54).

7. The plastic housing for an electrical device according to claim 6, wherein: The edge of the driving bar (53) is provided with a rounded corner.

8. The plastic housing for an electrical device according to claim 1, wherein: The first assembly plate (1), the second assembly plate (2) and the protective plate (4) are made of PTFE material.

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