An adjustable shielding device that is easy to disassemble

Abstract

This utility model relates to an adjustable shielding device that is easy to assemble and disassemble. It includes a circuit board, a base mounted on the circuit board, a side frame connected to the base, and a top cover on the side frame. The top cover can move up and down within the side frame. The top cover, base, and side frame cooperate to form a shielding cavity. A push-pull assembly is provided between the top cover and the side frame, which includes an elastic element, a receiving hole, and a push rod. An adjustment locking assembly is also provided between the top cover and the side frame, which includes a pull rod, a limiting hole, and a limiting tooth. The pull rod has a handle; rotating the pull rod causes the handle to engage with the limiting tooth, thereby limiting and fixing the top cover and side frame. Adjusting the position of the handle on the limiting tooth adjusts the height of the shielding cavity. By setting the push-pull assembly and the adjustment locking assembly, the height of the shielding cavity can be adjusted to accommodate modules of different heights, making assembly, disassembly, and adjustment more convenient and facilitating later maintenance. The pull rod is an assembly of a screw rod and a screw hole rod, which is easy to fine-tune.

Description

Technical Field

[0001] This utility model belongs to the technical field of shielding covers, specifically relating to an adjustable shielding device that is easy to assemble and disassemble. Background Technology

[0002] A shielding enclosure is a tool used to shield electronic signals. Its function is to shield the influence of external electromagnetic waves on internal circuits and to prevent internally generated electromagnetic waves from radiating outwards. Placing equipment in a closed or nearly closed metal shell or metal mesh enclosure is called a shielding enclosure.

[0003] Since the module is fixed inside a shielding cover, which is then fixed to the circuit board, routine maintenance of the module requires first removing the shielding cover. However, most shielding covers on the market are currently fixed to the circuit board by soldering, which makes assembly complex, inconvenient to disassemble and reassemble, and difficult to maintain later. Moreover, the height of the module may change after maintenance, so in actual use, there is a need to adjust the shielding cover to accommodate changes in module height.

[0004] For example, Chinese utility model patent (authorization announcement number: CN205232678U) discloses a detachable and height-adjustable shielding cover structure, including screws, copper pillars, nuts, circuit boards, shielding cover bases, modules, and a shielding cover. The circuit board, the shielding cover base, and the module all have mounting holes. The shielding cover has a recessed hole. The screw passes through the recessed hole of the shielding cover and the mounting hole of the module in sequence and connects to the upper end of the copper pillar. The lower end of the copper pillar passes through the mounting holes of the shielding cover base and the circuit board in sequence and connects to the nut. The installation of the shielding cover makes full use of the module's space, achieving the goal of reducing the installation space required for the shielding cover. Furthermore, in different product scenarios, if the module requires different spaces, the height of the shielding cover can be adjusted by changing the height of the copper pillar to achieve the shielding effect. The shielding cover is fixed by screws, making it detachable. Only by unscrewing the screws can the internal components be repaired, facilitating future maintenance.

[0005] However, the aforementioned detachable and height-adjustable shielding cover structure involves complex operations during assembly, disassembly, and use, resulting in inconvenience and low operational efficiency. Therefore, it is necessary to design a new solution to address these issues. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable shielding device that is easy to assemble and disassemble, in order to solve the technical problem in the prior art that "it is inconvenient to assemble, disassemble and adjust the height of the shielding cover during use, and the operation efficiency is low".

[0007] To achieve the above objectives, this utility model provides an adjustable shielding device that is easy to assemble and disassemble, including a circuit board, a base mounted on the circuit board, a side frame connected to the base, a top cover on the side frame, the outer periphery of the vertical surface of the top cover being adapted to fit the inner side of the vertical surface of the side frame and being able to move up and down within the side frame, the top cover, the base, and the side frame forming a shielding cavity.

[0008] At least one set of push-top components is provided between the top cover and the side frame. The push-top components include an elastic element, a receiving hole, and a push rod. The receiving hole is located on the side of the side frame and is parallel to the vertical direction of the side frame. The push rod is aligned with the receiving hole and is located at the edge of the top surface of the top cover and is perpendicular to the top surface of the top cover. The elastic element is placed in the receiving hole and is limited by the receiving hole. The push rod is adapted to extend into the receiving hole and the head of the push rod elastically abuts against the elastic element.

[0009] When the top cover moves vertically downward along the inner side of the side frame, the push rod presses against the elastic element, causing the top cover and the side frame to move away from each other;

[0010] At least one set of adjusting and locking components is provided between the top cover and the side frame. The adjusting and locking components include a pull rod, a limiting hole and a limiting tooth. One end of the pull rod is provided with a handle and the other end is provided with a pull rod head. The limiting hole is located at the edge of the top surface of the top cover and is perpendicular to the top surface of the top cover. The pull rod rotates within the limiting hole and the pull rod head is limited by the limiting hole. The limiting tooth is located on the outside of the side frame.

[0011] Optionally, the pull rod includes a screw rod and a screw hole rod; the end of the screw rod away from the pull rod head is provided with a threaded section, and the end of the screw hole rod away from the handle is provided with a threaded hole, and the screw hole rod is threadedly connected to the screw rod.

[0012] Optionally, the adjusting locking assembly further includes a guide groove, which is located beside the limiting tooth on the side frame and aligned with the limiting hole, and the screw rod passes through the guide groove and is connected to the screw rod.

[0013] Optionally, the top of the pull rod head of the screw is provided with an internal hexagonal hole.

[0014] Optionally, the limiting hole provided on the top cover is a countersunk hole.

[0015] Optionally, the bottom of the receiving hole on the side frame is provided with a locking part, and the elastic element is detachably connected to the locking part.

[0016] Optionally, the limiting tooth is provided with a semi-circular groove.

[0017] Optionally, the pushing assembly is provided in four sets, with each of the four sets of pushing assemblies arranged in pairs on opposite sides of the shielding device, and the two sets of pushing assemblies on the same side being arranged at the left and right ends respectively; the adjusting and locking assembly is provided in two sets, with each of the two sets of adjusting and locking assemblies being arranged on the two sides where the pushing assembly is located, and the adjusting and locking assembly being located between the two sets of pushing assemblies on the same side.

[0018] The adjustable shielding device provided in this utility model embodiment, which is easy to assemble and disassemble, has at least one of the following technical effects: In this utility model, by setting a pushing component and an adjusting locking component between the top cover and the side frame, the height of the shielding cavity can be adjusted to adapt to modules of different heights, and disassembly and adjustment are more convenient, which is also beneficial for later maintenance and repair. The pull rod in the adjusting locking component is designed as a screw rod and a screw hole rod assembled together, which makes it easy to fine-tune when adjusting the height of the shielding cavity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0020] Figure 1 A schematic diagram of the structure of the adjustable shielding device that is easy to assemble and disassemble, provided for an embodiment of this utility model;

[0021] Figure 2 An exploded view of the adjustable shielding device that is easy to assemble and disassemble, provided for an embodiment of this utility model;

[0022] Figure 3 A top view of an adjustable shielding device that is easy to assemble and disassemble, provided for an embodiment of this utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross section at point AA;

[0024] Figure 5 Another top view of the adjustable shielding device that is easy to assemble and disassemble according to an embodiment of the present utility model;

[0025] Figure 6 for Figure 5 Schematic diagram of the cross section at point BB;

[0026] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0027] Figure 8This is a schematic diagram of the structure of the adjusting locking assembly provided in an embodiment of the present utility model;

[0028] Figure 9 for Figure 8 Enlarged view of point D in the middle;

[0029] Figure 10 A top enlarged schematic diagram of the pull rod provided in an embodiment of this utility model;

[0030] Figure 11 for Figure 10 A cross-sectional view of the EE section.

[0031] The following are the labeling elements in the figure:

[0032] Circuit board 1, base 2, side frame 3, top cover 4, shielding cavity 5;

[0033] Pushing assembly 6, elastic element 61, receiving hole 62, clamping part 621, push rod 63;

[0034] Adjustable locking assembly 7, pull rod 71, screw 711, pull rod head 7111, internal hexagonal hole 71111, threaded section 7112, screw hole rod 712, handle 7121, threaded hole 7122, limit hole 72, limit tooth 73, semi-circular groove 731, guide groove 74. Detailed Implementation

[0035] The embodiments of the present invention are described in detail below, examples of which 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 intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, 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.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 embodiment of the invention according to the specific circumstances.

[0039] In one embodiment of this utility model, such as Figure 2 and Figure 4 As shown, an adjustable shielding device that is easy to assemble and disassemble is provided, including a circuit board 1, a base 2 mounted on the circuit board 1, and a side frame 3 connected to the base 2, the side frame 3 being a hollow frame with two hollow sides and four closed sides. A top cover 4 is provided on the side frame 3. The top cover 4 is a cavity structure formed by four vertical surfaces and a top surface intersecting the four vertical surfaces. The outer periphery of the vertical surface of the top cover 4 is adapted to fit the inner side of the vertical surface of the side frame 3 and can move up and down within the side frame 3. The side frame 3 guides the up and down movement of the top cover 4 and restricts the range of motion of the top cover 4 in the horizontal direction. The top cover 4, the base 2, and the side frame 3 cooperate to form a shielding cavity 5, so that the module can be placed inside it.

[0040] like Figure 2 and Figure 7 As shown, at least one set of push-pull components 6 is provided between the side frame 3 and the top cover 4. The push-pull component 6 includes an elastic element 61, a receiving hole 62, and a push rod 63. The elastic element 61 is generally a compression spring. The receiving hole 62 is located on the side of the side frame 3 and is parallel to the vertical direction of the side of the side frame 3. The push rod 63 is aligned with the receiving hole 62. The push rod 63 is located on the edge of the top surface of the top cover 4 and is perpendicular to the top surface of the top cover 4. The receiving hole 62 is located on the outside of the side frame 3 instead of the inside, which facilitates the observation of the quick alignment of the push rod 63 with the receiving hole 62 during the initial installation of the shielding device, and does not occupy the internal space of the shielding cavity 5, thus avoiding interference with the internal modules. The receiving hole 62 is a blind hole. The elastic element 61 is placed in the receiving hole 62 and is limited by the receiving hole 62. The push rod 63 is adapted to extend into the receiving hole 62, and the head of the push rod 63 elastically abuts against the elastic element 61.

[0041] like Figure 2 , Figure 9 and Figure 11 As shown, at least one set of adjusting locking components 7 is also provided between the top cover 4 and the side frame 3. The adjusting locking components 7 include a pull rod 71, a limiting hole 72, and limiting teeth 73. One end of the pull rod 71 is provided with a handle 7121, and the other end is provided with a pull rod head 7111. The handle 7121 is a branch structure perpendicular to the body of the pull rod 71. The size of the pull rod head 7111 is larger than the diameter of the limiting hole 72. The limiting hole 72 is located at the edge of the top surface of the top cover 4 and is perpendicular to the top surface of the top cover 4. The pull rod 71 rotates within the limiting hole 72, and the pull rod head 7111 is limited by the limiting hole 72. The limiting teeth 73 are located on the outside of the side frame 3. The limiting teeth 73 are several raised square blocks distributed at a certain interval and perpendicular to the outer surface of the side frame 3. When installing the shielding device, the top cover 4 is placed inside the side frame 3, and the height of both is adjusted vertically to ensure the height of the shielding cavity 5 is suitable. Then, the pull rod 71 is rotated to engage the handle 7121 with the limiting tooth 73, thereby fixing the top cover 4 and the side frame 3. Specifically, by setting a push assembly 6 and an adjusting locking assembly 7 between the top cover 4 and the side frame 3, the relative position between the top cover 4 and the side frame 3 is fixed, thus forming the shielding cavity 5 that accommodates the module. Adjusting the position of the handle 7121 on different teeth of the limiting tooth 73 adjusts the height of the shielding cavity 5 to accommodate modules of different heights. When opening the shielding device, the engagement between the handle 7121 and the limiting tooth 73 is released, and the elastic element 61 of the push assembly 6 releases its elastic force to push the top cover 4 out. This makes disassembly, assembly, and adjustment of the shielding device more convenient during use, and facilitates later maintenance and repair.

[0042] Furthermore, such as Figures 9-11 As shown, the pull rod 71 includes a screw 711 and a threaded rod 712. The end of the screw 711 furthest from the pull rod head 7111 has a threaded section 7112. The end of the threaded rod 712 furthest from the handle 7121 has a threaded hole 7122. The threaded rod 712 and the screw 711 are threadedly connected. This design allows for easy and efficient assembly of the adjusting locking assembly 7 by simply screwing the screw 711 and the threaded rod 712 together when installing the shielding device. Furthermore, when adjusting the height of the shielding cavity 5, coarse adjustment is achieved by adjusting the position of the handle 7121 on different teeth of the limiting tooth 73, and fine adjustment is achieved by screwing the threaded section 7112 and the threaded hole 7122, allowing for quick and precise adaptation to modules of different heights. The top of the pull rod head 7111 of the screw 711 is also provided with an internal hexagonal hole 71111 to accommodate tools such as internal hexagonal wrenches, making it easier to operate the screw 711 and the screw hole rod 712 for tightening, thus improving the practicality of this utility model. Specifically, the screw 711 can be an internal hexagonal bolt.

[0043] Furthermore, such as Figure 9As shown, the adjusting locking assembly 7 also includes a guide groove 74. The guide groove 74 is an annular structure with one open side and three closed sides. The guide groove 74 is located beside the limiting tooth 73 on the side frame 3 and aligned with the limiting hole 72. The screw rod 712 passes through the guide groove 74 and is connected to the screw rod 711. The guide groove 74 is provided to guide the pull rod 71 when its position is adjusted on different teeth of the limiting tooth 73, limiting the movement of the pull rod 71 in three directions and preventing it from swinging arbitrarily, making the operation easier. The size of the guide groove 74 allows the pull rod 71 to move freely up and down. Therefore, when removing the top cover 4 of the shielding device, it is only necessary to release the contact between the handle 7121 and the limiting tooth 73 and rotate it until the length direction of the handle 7121 is parallel to the direction of the opening side of the guide groove 74, and the top cover 4 can be quickly popped out and removed.

[0044] Furthermore, such as Figure 9 As shown, the limiting hole 72 provided on the top cover 4 is a countersunk hole, which allows the pull rod head 7111 to work normally without exceeding the top periphery of the top cover 4, saving space and not interfering with the external arrangement of the top cover 4.

[0045] Furthermore, such as Figure 7 As shown, the receiving hole 62 on the side frame 3 has a locking part 621 at the bottom. The elastic element 61 and the locking part 621 are detachably connected to prevent the elastic element 61 from running out of the receiving hole 62 during the disassembly and assembly of the shielding device, thus affecting work efficiency.

[0046] Furthermore, such as Figure 9 As shown, the limiting tooth 73 is provided with a semi-circular groove 731. The semi-circular groove 731 is a groove provided at the root of each tooth of the limiting tooth 73, which allows the handle 7121 to sink into it, so as to better fix the handle 7121 and prevent it from slipping off.

[0047] Furthermore, such as Figure 2 , Figure 7 , Figure 9 and Figure 11 As shown, there are four sets of pushing components 6, with each set positioned in pairs on opposite sides of the shielding device. Two sets of pushing components 6 on the same side are located at the left and right ends, respectively. There are two sets of adjusting and locking components 7, each positioned on one of the sides where the pushing components 6 are located, with the adjusting and locking components 7 positioned between the two sets of pushing components 6 on the same side. This arrangement ensures that the force is evenly distributed in all directions when pushing and pulling the top cover 4 and the side frame 3, resulting in smoother pushing and pulling. Simultaneously, it prevents the top cover 4 from being pulled over between the top cover 4 and the side frame 3 due to localized force when the height of the shielding cavity 5 approaches its highest point, thus affecting the normal operation of the shielding device.

[0048] The working principle of the easily detachable and adjustable shielding device in this invention is as follows:

[0049] When installing the shielding device, press the top cover 4 to move it downwards within the side frame 3 to a suitable height, and rotate the pull rod 71 to make the handle 7121 engage with the limiting tooth 73, thereby limiting and fixing the top cover 4 and the side frame 3. At this time, the elastic force of the elastic element 61 makes the handle 7121 and the limiting tooth 73 abut and connect tightly.

[0050] When fine-tuning the height of the shielding device, turn the screw 711 in the forward or reverse direction to change the length of the pull rod 71, thereby adjusting the shielding cavity 5 to a suitable height.

[0051] When opening the shielding device, rotate the two handles 7121 180° to align the handles 7121 with the opening of the guide groove 74 and then release them. At this time, the elastic element 61 releases its elastic force to push the top cover 4 open.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable shielding device that is easy to assemble and disassemble, comprising a circuit board, wherein a base is mounted on the circuit board, characterized in that: A side frame is connected to the base, and a top cover is provided on the side frame. The outer periphery of the vertical surface of the top cover is adapted to fit the inner side of the vertical surface of the side frame and can move up and down within the side frame. The top cover, the base, and the side frame cooperate to form a shielding cavity. At least one set of push-top components is provided between the top cover and the side frame. The push-top components include an elastic element, a receiving hole, and a push rod. The receiving hole is located on the side of the side frame and is parallel to the vertical direction of the side frame. The push rod is aligned with the receiving hole and is located at the edge of the top surface of the top cover and is perpendicular to the top surface of the top cover. The elastic element is placed in the receiving hole and is limited by the receiving hole. The push rod is adapted to extend into the receiving hole and the head of the push rod elastically abuts against the elastic element. At least one set of adjusting and locking components is provided between the top cover and the side frame. The adjusting and locking components include a pull rod, a limiting hole and a limiting tooth. One end of the pull rod is provided with a handle and the other end is provided with a pull rod head. The limiting hole is located at the edge of the top surface of the top cover and is perpendicular to the top surface of the top cover. The pull rod rotates within the limiting hole and the pull rod head is limited by the limiting hole. The limiting tooth is located on the outside of the side frame.

2. The adjustable shielding device for easy assembly and disassembly according to claim 1, characterized in that: The pull rod includes a screw rod and a screw hole rod; the screw rod has a threaded section on its periphery at the end away from the pull rod head, and the screw hole rod has a threaded hole at the end away from the handle, and the screw hole rod is threadedly connected to the screw rod.

3. The adjustable shielding device for easy assembly and disassembly according to claim 2, characterized in that: The adjusting locking assembly also includes a guide groove, which is located on the side of the limiting tooth on the side frame and aligned with the limiting hole. The screw rod passes through the guide groove and is connected to the screw rod.

4. The adjustable shielding device for easy assembly and disassembly according to claim 3, characterized in that: The top of the pull rod head of the screw is provided with an internal hexagonal hole.

5. The adjustable shielding device for easy assembly and disassembly according to any one of claims 1-4, characterized in that: The limiting hole provided on the top cover is a countersunk hole.

6. The adjustable shielding device for easy assembly and disassembly according to claim 5, characterized in that: The bottom of the receiving hole on the side frame is provided with a locking part, and the elastic element is detachably connected to the locking part.

7. The adjustable shielding device for easy assembly and disassembly according to claim 6, characterized in that: The limiting tooth is provided with a semi-circular groove.

8. The easily detachable adjustable shielding device according to claim 6 or 7, characterized in that: The pushing assembly is provided in four sets, with each set of the pushing assembly arranged in pairs on opposite sides of the shielding device. The two sets of pushing assemblies on the same side are respectively located at the left and right ends. The adjusting and locking assembly is provided in two sets, with each set of adjusting and locking assemblies arranged on the two sides where the pushing assembly is located. The adjusting and locking assembly is located between the two sets of pushing assemblies on the same side.

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