Plastic shell convenient to replace

Abstract

The utility model discloses a plastic shell convenient to replace, and relates to the technical field of plastic shells. The plastic shell convenient to replace comprises a bottom shell and a concave shell, second sliding grooves are formed in the left side and the right side of the bottom shell, first fixing holes communicated with the concave position of the concave shell are formed in the left side and the right side of the concave shell, a first fixing device is arranged on the bottom shell, and a second fixing device is arranged on the concave shell. The second fixing device is arranged on the two second sliding grooves, the second fixing device comprises two second sliding blocks, installation of the concave shell and the bottom shell is completed in a clamping mode, and compared with fixing through fixing bolts, a user can install the plastic shell more conveniently; and when the surface of the concave shell or the bottom shell is damaged, the concave shell and the bottom shell can be detached without using a specific tool, so that the practicability of the plastic shell convenient to replace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic shells, in particular to a plastic shell which is easy to replace. Background Art

[0002] General power supplies require a power supply casing, which not only serves as an insulation but also has a certain protective effect.

[0003] The plastic shell of the power supply has a certain elasticity, but when it encounters puncture from sharp objects, it will be damaged and easily penetrated, resulting in reduced protection and even leakage. This requires the replacement of the plastic shell of the power supply. The existing plastic shell of the power supply is generally fixed by fixing bolts to the upper shell and the lower shell. Users need to use specific tools to remove the fixing bolts in turn, and the fixing bolts may also be stripped, causing inconvenience to users in replacement and reducing practicality. Therefore, a plastic shell that is easy to replace is needed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a plastic shell that is easy to replace. The utility model can solve the problem that the existing power supply plastic shell is generally fixed with an upper shell and a lower shell by fixing bolts, and the user needs to use specific tools to remove the fixing bolts in turn, and the fixing bolts may also be stripped, causing inconvenience to the user during replacement.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic shell that is easy to replace, including a bottom shell and a concave shell;

[0008] The left and right sides of the bottom shell are provided with second slide grooves, the left and right sides of the concave shell are provided with first fixing holes and first fixing devices communicating with the concave part thereof, and the first fixing devices are arranged on the bottom shell;

[0009] A second fixing device, the second fixing device is arranged on the two second slide grooves, the second fixing device comprises two second sliders, the two second sliders are slidably connected to the inner walls of the two second slide grooves, and the two second sliders are fixedly connected to the concave part of the concave shell;

[0010] Wherein, the two second sliding blocks are each provided with a second guide hole, the inner walls of the two second guide holes are slidably connected with a second guide rod, and the two second guide rods are fixedly connected to the inner walls of the two second sliding grooves.

[0011] Preferably, the upper and lower surfaces of the two second guide rods are each provided with a second fixing hole, and the inner walls of the four second fixing holes are each fixedly connected with a second spring;

[0012] Among them, the two upper and lower opposite surfaces of the second springs corresponding to each other are fixedly connected with fixing columns, and the four fixing columns are slidably connected to the inner walls of the four second fixing holes.

[0013] Preferably, the first fixing device comprises a rectangular block, the rectangular block is fixedly connected to the rear surface of the bottom shell, and a first guide hole is opened on the rectangular block;

[0014] Wherein, a first slide groove is opened on the rear surface of the rectangular block, and the first slide groove is communicated with the inside of the first guide hole.

[0015] Preferably, the first fixing device further comprises two circular plates, both of which are slidably connected to the inner wall of the first guide hole, and the first spring is fixedly connected to the opposite surfaces of the two circular plates;

[0016] The opposing surfaces of the two circular plates are fixedly connected with fixing rods, and the opposing ends of the two fixing rods slide through the two first fixing holes.

[0017] Preferably, the first fixing device further comprises two first sliding blocks, and the two first sliding blocks are both slidably connected to the inner wall of the first sliding groove;

[0018] The two first sliding blocks are respectively fixedly connected to the two circular plates, and the rear surfaces of the two first sliding blocks are fixedly connected to connecting plates.

[0019] Preferably, a plug connector is fixedly connected to the front surface of the bottom shell, and a circular hole communicating with the plug connector is opened on the rear surface of the bottom shell.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (1) The easily replaceable plastic shell uses a snap-fit ​​method to complete the installation of the concave shell and the bottom shell. Compared with fixing with fixing bolts, it is more convenient for users to install the plastic shell. When the surface of the concave shell or the bottom shell is damaged, the concave shell and the bottom shell can be removed without using specific tools, thereby improving the practicality of the easily replaceable plastic shell.

[0023] (2) The easily replaceable plastic shell can fix the front sides of the concave shell and the bottom shell by providing a second fixing device, thereby increasing the overall strength of the concave shell and the bottom shell and improving the firmness of the fixing of the concave shell and the bottom shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the rear surface of the utility model as a whole;

[0027] Figure 3 This is a schematic diagram of the connection between the circular plate and the first spring of the utility model;

[0028] Figure 4 This is a schematic diagram of the surface of the bottom shell of the utility model;

[0029] Figure 5 This is a schematic diagram of the surface of the second guide rod of the utility model;

[0030] Figure 6 It is a schematic diagram of the connection between the second slider and the second slider of the utility model.

[0031] Figure numerals: 1. bottom shell; 2. concave shell; 3. plug connector; 4. fixing rod; 5. first slider; 6. rectangular block; 7. first slide groove; 8. round hole; 9. connecting plate; 10. first guide hole; 11. first fixing hole; 12. round plate; 13. first spring; 14. second slide groove; 15. second guide rod; 16. second fixing hole; 17. fixing column; 18. second slider; 19. second guide hole; 20. second spring. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] See also Figure 1-6 The utility model provides a technical solution: a plastic shell that is easy to replace, including a bottom shell 1 and a concave shell 2, the bottom shell 1 is provided with a second slide groove 14 on both sides, the concave shell 2 is provided with a first fixing hole 11 communicating with the concave part thereof on both sides, and a first fixing device, the first fixing device is arranged on the bottom shell 1;

[0037] A second fixing device, which is arranged on the two second slide grooves 14, and includes two second sliders 18, which are slidably connected to the inner walls of the two second slide grooves 14, and the two second sliders 18 are fixedly connected to the concave part of the concave housing 2;

[0038] The two second slide blocks 18 are each provided with a second guide hole 19 , the inner walls of the two second guide holes 19 are slidably connected with the second guide rods 15 , and the two second guide rods 15 are fixedly connected to the inner walls of the two second slide grooves 14 .

[0039] Furthermore, the upper and lower surfaces of the two second guide rods 15 are provided with second fixing holes 16, and the inner walls of the four second fixing holes 16 are fixedly connected with second springs 20;

[0040] The two upper and lower surfaces of the second springs 20 that correspond to each other are fixedly connected with fixing columns 17 , and the four fixing columns 17 are slidably connected to the inner walls of the four second fixing holes 16 .

[0041] Furthermore, the first fixing device comprises a rectangular block 6, which is fixedly connected to the rear surface of the bottom housing 1, and a first guide hole 10 is formed on the rectangular block 6;

[0042] A first slide groove 7 is formed on the rear surface of the rectangular block 6 , and the first slide groove 7 is communicated with the interior of the first guide hole 10 .

[0043] Furthermore, the first fixing device further comprises two circular plates 12, both of which are slidably connected to the inner wall of the first guide hole 10, and the first spring 13 is fixedly connected to the opposite surfaces of the two circular plates 12;

[0044] The opposite surfaces of the two circular plates 12 are fixedly connected with the fixing rods 4 , and the opposite ends of the two fixing rods 4 slide through the two first fixing holes 11 .

[0045] Furthermore, the first fixing device further comprises two first sliding blocks 5, and the two first sliding blocks 5 are both slidably connected to the inner wall of the first sliding groove 7;

[0046] The two first sliding blocks 5 are fixedly connected to the two circular plates 12 respectively, and the rear surfaces of the two first sliding blocks 5 are fixedly connected to the connecting plates 9 .

[0047] Furthermore, a plug connector 3 is fixedly connected to the front surface of the bottom shell 1 , and a circular hole 8 communicating with the plug connector 3 is formed on the rear surface of the bottom shell 1 .

[0048] Furthermore, when the concave shell needs to be replaced, first pick up the new concave shell 2 and slide the two second sliders 18 to connect them to the inner walls of the two second slide grooves 14, and slide the two second guide rods 15 to the inner walls of the two second guide holes 19. At the same time, press the two connecting plates 9 with two fingers to make the two connecting plates 9 pass through the two circular plates 12. The two circular plates 12 drive the two fixing rods 4 to move to opposite positions. When the fixing column 17 contacts the inner wall of the second guide hole 19, it will slide into the inner wall of the second fixing hole 16. When the two second sliders 18 are in contact with the rear inner walls of the two second slide grooves 14, the four fixing columns 17 slide out of the inner walls of the four second fixing holes 16 again under the action of the four second springs 20 to fix the second sliders 18. The concave shell 2 and the bottom shell 1 are completed by using a snap-on method. Compared with fixing with fixing bolts, it is more convenient for users to install the plastic shell. When the surface of the concave shell 2 or the bottom shell 1 is damaged, the concave shell and the bottom shell can be removed without using specific tools, thereby improving the practicality of this plastic shell that is easy to replace. At the same time, the staff will open the two connecting plates 9 by hand, and the first spring 13 will reset and push the two fixing rods 4 to opposite positions through the two circular plates 12, so that the two fixing rods 4 are respectively engaged with the inner walls of the two first fixing holes 11. By setting the first fixing device, the concave shell 2 and the rear side of the bottom shell 1 can be fixed, and by setting the second fixing device, the concave shell 2 and the front side of the bottom shell 1 can be fixed, thereby increasing the overall strength of the concave shell 2 and the bottom shell 1, and improving the firmness of the fixing of the concave shell 2 and the bottom shell 1.

[0049] Working principle: When the concave shell needs to be replaced, first pick up the new concave shell 2 and slide the two second sliders 18 to connect them to the inner walls of the two second slide grooves 14, and slide the two second guide rods 15 to connect them to the inner walls of the two second guide holes 19. At the same time, press the two connecting plates 9 with two fingers to make the two connecting plates 9 pass through the two circular plates 12. The two circular plates 12 drive the two fixing rods 4 to move to opposite positions. When the fixing column 17 contacts the inner wall of the second guide hole 19, it will slide into the inner wall of the second fixing hole 16. When the two second sliders 18 are in contact with the inner wall of the rear side of the two second slide grooves 14, the fixing column 17 will slide into the inner wall of the second fixing hole 16. After the walls are fitted together, the four fixing columns 17 slide out of the inner walls of the four second fixing holes 16 again under the action of the four second springs 20, and the second slider 18 is fixed. The installation of the concave shell 2 and the bottom shell 1 is completed by adopting a snap-fitting method. When the concave shell 2 or the bottom shell 1 is damaged, it is convenient to replace the two without having to throw away the entire plastic shell. At the same time, the staff will open the two connecting plates 9 by hand, and the first spring 13 will reset and push the two fixing rods 4 to opposite positions through the two circular plates 12, so that the two fixing rods 4 are respectively snapped into the inner walls of the two first fixing holes 11.

[0050] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A plastic shell that is easy to replace, characterized in that: include: A bottom housing (1) and a concave housing (2); The left and right sides of the bottom shell (1) are both provided with second slide grooves (14), the left and right sides of the concave shell (2) are both provided with first fixing holes (11) communicating with the concave part thereof, and a first fixing device, the first fixing device being arranged on the bottom shell (1); A second fixing device, the second fixing device is arranged on the two second slide grooves (14), the second fixing device comprises two second sliders (18), the two second sliders (18) are slidably connected to the inner walls of the two second slide grooves (14), and the two second sliders (18) are fixedly connected to the concave part of the concave housing (2); The two second slide blocks (18) are each provided with a second guide hole (19), the inner walls of the two second guide holes (19) are slidably connected to a second guide rod (15), and the two second guide rods (15) are fixedly connected to the inner walls of the two second slide grooves (14).

2. The easily replaceable plastic housing according to claim 1, characterized in that: The upper and lower surfaces of the two second guide rods (15) are each provided with a second fixing hole (16), and the inner walls of the four second fixing holes (16) are each fixedly connected with a second spring (20); The two upper and lower corresponding second springs (20) are both fixedly connected to the facing surfaces with fixing columns (17), and the four fixing columns (17) are all slidably connected to the inner walls of the four second fixing holes (16).

3. The easily replaceable plastic housing according to claim 1, characterized in that: The first fixing device comprises a rectangular block (6), the rectangular block (6) is fixedly connected to the rear surface of the bottom shell (1), and a first guide hole (10) is opened on the rectangular block (6); A first slide groove (7) is provided on the rear surface of the rectangular block (6), and the first slide groove (7) is communicated with the interior of the first guide hole (10).

4. The easily replaceable plastic housing according to claim 3, characterized in that: The first fixing device further comprises two circular plates (12), the two circular plates (12) are both slidably connected to the inner wall of the first guide hole (10), and the first spring (13) is fixedly connected to the opposite surfaces of the two circular plates (12); The facing surfaces of the two circular plates (12) are fixedly connected to fixing rods (4), and the facing ends of the two fixing rods (4) slide through the two first fixing holes (11).

5. The easily replaceable plastic housing according to claim 1, characterized in that: The first fixing device further comprises two first sliding blocks (5), and the two first sliding blocks (5) are both slidably connected to the inner wall of the first sliding groove (7); The two first sliding blocks (5) are respectively fixedly connected to the two circular plates (12), and the rear surfaces of the two first sliding blocks (5) are both fixedly connected to a connecting plate (9).

6. The easily replaceable plastic housing according to claim 1, characterized in that: The front surface of the bottom shell (1) is fixedly connected with a plug connector (3), and the rear surface of the bottom shell (1) is provided with a circular hole (8) communicating with the plug connector.

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