Plastic shell with embedded fixing structure

Abstract

The utility model discloses a plastic casing of an embedded fixing structure, which comprises a plastic casing body and a panel, notches are arranged at four corners of the plastic casing body, positioning blocks are arranged in the notches, fixing plates are mounted at four corners of an opening of the plastic casing body, and the panel is fixed on the panel. And extrusion blocks used for extruding the positioning blocks to move outwards are arranged between the fixing plates and the positioning blocks, a plurality of screw holes are formed in the bottom face of the plastic shell body, hand screwing bolts are in threaded connection with the interiors of the screw holes, and the panel is clamped and fixed into the plastic shell body. The plastic shell is simple in structure, the bottom surface of the plastic shell body can be in multi-point contact with the groove formed in the wall by rotating the hand-screwing bolt, the opening end face of the plastic shell body is parallel to the wall, and after the positioning block moves outwards, the plastic shell body can be extruded, so that the plastic shell body is centered and aligned.

Description

Technical Field

[0001] This utility model relates to the field of plastic shell technology, specifically to a plastic shell with an embedded fixing structure. Background Technology

[0002] Plastic housings generally refer to outer shells or covers made of plastic. These housings are widely used in various electronic devices, daily necessities, and industrial products to protect internal components.

[0003] Currently, some plastic shells are embedded in walls, such as junction boxes and socket shells. However, these plastic shells lack positioning function during installation. Because the grooves on the wall are uneven, the plastic shell cannot be centered after insertion, causing misalignment during fixing and affecting the accuracy and flatness of subsequent installation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a plastic shell with an embedded fixing structure, which can be centered and positioned parallel to the wall by hand-tightening bolts and positioning blocks, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an embedded fixed structure plastic shell, including a plastic shell body and a panel. The plastic shell body has notches at all four corners, and positioning blocks are provided in each notch. Fixing plates are installed at all four corners of the opening of the plastic shell body. There are extrusion blocks between the fixing plates and the positioning blocks for squeezing the positioning blocks to move outward. The bottom surface of the plastic shell body has multiple screw holes, and hand-tightening bolts are threaded into each screw hole. The panel is snapped and fixed inside the plastic shell body.

[0006] As a preferred technical solution, the inner side of the plastic shell body is provided with multiple positioning grooves, and the side of the panel protrudes to form positioning parts opposite to the positioning grooves. The positioning parts are slidably disposed in the positioning grooves. The end of the positioning groove away from the opening is provided with a limiting port that communicates with the outside. The outer end face of the positioning part is provided with a groove, and a limiting block is provided in the groove. One end of the limiting block is inserted into the limiting port, and the other end is equipped with a compression spring. The other end of the compression spring is installed on the inner wall of the groove.

[0007] As a preferred technical solution, bearings are embedded in the fixed plate, and screw holes are vertically provided in the extrusion blocks opposite to the bearings. Screws are installed in the inner rings of the bearings, one end of the screws is threaded into the screw hole, and the other end is equipped with a rotating block. The rotating blocks are all hexagonal in shape.

[0008] As a preferred technical solution, each of the positioning blocks has a first guide portion with an arc-shaped structure on the end face facing the fixing plate, and each of the extrusion blocks has a second guide portion with an arc-shaped structure on the end face facing the positioning block.

[0009] As a preferred technical solution, both sides of the positioning block are in contact with the inner side of the notch, and the bottom surface of the positioning block is in contact with the bottom surface of the inner cavity of the plastic shell.

[0010] As a preferred technical solution, multiple fixing parts are formed on the end face of the opening of the plastic shell body, and each fixing part is provided with a fixing hole.

[0011] The beneficial effects of this utility model are: the utility model has a simple structure. By rotating the hand-tightening bolt, the bottom surface of the plastic shell body can make multiple contacts with the groove opened on the wall, so that the open end face of the plastic shell body is parallel to the wall. After the positioning block moves outward, it can squeeze the plastic shell body, so that the plastic shell body is centered and aligned, thus ensuring the stability of the installation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model after the panel has been disassembled;

[0015] Figure 3 This is a schematic diagram of the structure of the plastic shell body of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model after the plastic shell body has been removed.

[0017] The components are: 1. Plastic shell body; 2. Panel; 3. Positioning block; 4. Extrusion block; 5. Fixing plate; 6. Rotating block; 7. First guide section; 8. Positioning groove; 9. Positioning part; 10. Limiting block; 11. Limiting port; 12. Hand-tightening bolt; 13. Notch; 14. Second guide section. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention discloses an embedded fixed structure plastic shell, including a plastic shell body 1 and a panel 2. The plastic shell body 1 has notches 13 at each of its four corners, and each notch 13 has a positioning block 3. Fixing plates 5 are installed at each of the four corners of the opening of the plastic shell body 1. There are pressing blocks 4 between the fixing plates 5 and the positioning blocks 3 for pressing the positioning blocks 3 to move outward. The bottom surface of the plastic shell body 1 has multiple screw holes, and each screw hole is threaded with a hand-tightening bolt 12. The panel 2 is snapped and fixed inside the plastic shell body 1.

[0022] In this embodiment, the inner side of the plastic shell body 1 is provided with multiple positioning grooves 8. The side of the panel 2 protrudes to form positioning parts 9 opposite to the positioning grooves 8. The positioning parts 9 are slidably disposed in the positioning grooves 8. The end of the positioning groove 8 away from the opening is provided with a limiting port 11 that communicates with the outside. The outer end face of the positioning part 9 is provided with a groove. The groove is provided with a limiting block 10. One end of the limiting block 10 is inserted into the limiting port 11, and the other end is equipped with a compression spring. The other end of the compression spring is installed on the inner wall of the groove.

[0023] After the limiting block is pressed inward, it can be moved out of the limiting opening and retracted into the inside of the groove. At this time, the panel can be taken out along the positioning groove, which makes it easy to disassemble.

[0024] In this embodiment, bearings are embedded in the fixing plate 5. Each extrusion block 4 is vertically provided with a screw hole that passes through the extrusion block 4 at the bearing. A screw is installed in the inner ring of each bearing. One end of the screw is threaded into the screw hole, and the other end is equipped with a rotating block 6. The rotating block 6 is hexagonal in shape.

[0025] In this embodiment, each of the positioning blocks 3 has a first guide portion 7 with an arc-shaped structure on one end face facing the fixing plate 5, and each of the extrusion blocks 4 has a second guide portion 14 with an arc-shaped structure on one end face facing the positioning blocks 3.

[0026] In this embodiment, both sides of the positioning block 3 are in contact with the inner side of the notch 13, and the bottom surface of the positioning block 3 is in contact with the bottom surface of the inner cavity of the plastic shell body 1, so that the positioning block can only extend upward along the notch or retract into the interior of the plastic shell body.

[0027] In this embodiment, multiple fixing parts protrude from the end face of the opening of the plastic shell body 1, and each fixing part is provided with a fixing hole, so that the shell cover corresponding to the plastic shell body can be fixed in the fixing hole by screws.

[0028] During installation, place the plastic shell body into the groove opened on the wall, and rotate the hand-tightening bolt according to the flatness of the bottom surface of the groove, so that the hand-tightening bolt extends outward or retracts inward along the screw hole until one end of the hand-tightening bolt can contact the inner wall surface of the groove at different heights. The hand-tightening bolt with multiple contact points can ensure that the open end face of the plastic shell body is parallel to the wall.

[0029] After the above is completed, the rotating block can be rotated. The rotation of the rotating block drives the lead screw, and the rotation of the lead screw drives the extrusion block, causing the extrusion block to move downward along the inner wall surface of the corner of the plastic shell body. During the movement, the second guide part on the extrusion block can extrude the first guide part on the positioning block outward, causing the positioning block to move outward along the inner side of the notch until it abuts against the corner of the groove. The distance the positioning block moves can center and position the plastic shell body in the groove to ensure the stability of the installation.

[0030] After the plastic shell body is fixed, the panel can be inserted into the interior of the plastic shell body, and the positioning part on the panel moves along the positioning groove. After the limiting block is aligned with the limiting port, the limiting block is pushed outward by the rebound of the compression spring and inserted into the limiting port, thereby positioning the inserted panel.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A plastic shell with an embedded fixing structure, characterized in that: The device includes a plastic shell body (1) and a panel (2). The plastic shell body (1) has notches (13) at all four corners, and each notch (13) has a positioning block (3). Each of the four corners of the opening of the plastic shell body (1) is equipped with a fixing plate (5). Each fixing plate (5) and the positioning block (3) is provided with a pressing block (4) for pressing the positioning block (3) to move outward. The bottom surface of the plastic shell body (1) has multiple screw holes, and each screw hole is threaded with a hand-tightening bolt (12). The panel (2) is snapped and fixed inside the plastic shell body (1).

2. The plastic shell of the embedded fixing structure according to claim 1, characterized in that: Multiple positioning grooves (8) are provided on the inner side of the plastic shell body (1). The side of the panel (2) protrudes from the positioning grooves (8) to form positioning parts (9). The positioning parts (9) are slidably disposed in the positioning grooves (8). The end of the positioning groove (8) away from the opening is provided with a limiting port (11) that communicates with the outside. The outer end face of the positioning part (9) is provided with a groove. The groove is provided with a limiting block (10). One end of the limiting block (10) is inserted into the limiting port (11), and the other end is equipped with a compression spring. The other end of the compression spring is installed on the inner wall of the groove.

3. The plastic shell of the embedded fixing structure according to claim 1, characterized in that: Bearings are embedded in the fixed plate (5). The extrusion block (4) is vertically provided with a screw hole that passes through the extrusion block (4) at the bearing. A screw is installed in the inner ring of the bearing. One end of the screw is threaded into the screw hole, and the other end is equipped with a rotating block (6). The rotating block (6) is hexagonal in shape.

4. The plastic shell of the embedded fixing structure according to claim 1, characterized in that: The positioning block (3) is provided with a first guide part (7) with an arc structure on one end face facing the fixing plate (5), and the extrusion block (4) is provided with a second guide part (14) with an arc structure on one end face facing the positioning block (3).

5. The plastic shell of the embedded fixing structure according to claim 1, characterized in that: Both sides of the positioning block (3) are in contact with the inner side of the notch (13), and the bottom surface of the positioning block (3) is in contact with the bottom surface of the inner cavity of the plastic shell body (1).

6. The plastic shell of the embedded fixing structure according to claim 1, characterized in that: Multiple fixing parts are formed on the open end face of the plastic shell body (1), and each fixing part is provided with a fixing hole.

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