Circuit board with positioning holes

Abstract

The utility model discloses a circuit board with positioning holes, which comprises a mounting casing and a circuit board body, the circuit board body is arranged above the mounting casing, a mounting plate is fixedly connected onto the inner wall of the mounting casing, and the circuit board further comprises an adjustable fixing unit. The adjustable fixing unit comprises a sliding groove formed in the mounting plate, and an adjustable threaded column is arranged on the sliding groove in a sliding mode. The utility model belongs to the technical field of circuit boards, and effectively solves the problems that the part structure of the circuit board is easy to damage to influence the installation, the maintenance is inconvenient, and the adjustability of the installation with different dimensions is poor.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit boards, and specifically refers to a circuit board with positioning holes. Background Art

[0002] When the existing circuit board is installed on the bottom plate, most of them are fixedly connected by screws. However, the circuit board is usually thin and does not have bolt holes itself. Screws are passed through the circuit board to the bottom plate and connected to the threaded posts on the bottom plate. At least four screws are required to install one circuit board. When installing through the above connection method, because the threaded posts are blocked by the circuit board, it is often impossible to quickly align the screws with the threaded posts, which is time-consuming; when manufacturing the circuit board, positioning holes need to be precisely manufactured in cooperation with the outer mold. Because the circuit board itself is brittle and thin, and the positioning holes are easily damaged during use.

[0003] Publication (Announcement) Number: CN219999678U, a circuit board with positioning holes, can perform pre-positioning when installing the circuit board, making the installation more convenient and fast.

[0004] However, when the above patent is in use, when the connection structure of the threaded post is damaged, it is more inconvenient to maintain, increasing the equipment replacement cost, and it is also more inconvenient to install circuit boards of different specifications. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the component structure of the circuit board is prone to damage, which affects the installation, is more inconvenient to maintain, and has poor adjustability for installation of different size specifications.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A circuit board with positioning holes proposed by the utility model includes an installation housing and a circuit board body. The circuit board body is arranged above the installation housing. An installation plate is fixedly connected to the inner wall of the installation housing, and an adjustable fixing unit is further included;

[0008] The adjustable fixing unit includes a sliding groove opened on the installation plate, and an adjustable threaded post is slidably arranged on the sliding groove.

[0009] Further, a limiting member is inserted at the lower end of the adjustable threaded post. The limiting member is composed of a set of cylinders and a set of circular plate-like structures combined up and down.

[0010] Further, a bayonet for snap-fitting with the limiting member is opened at the lower part of the installation plate. The bayonet is opened at the four corners of the sliding groove.

[0011] Further, a bottom sealing plate is fixedly connected to the lower part of the installation housing.

[0012] Furthermore, a telescopic rod is fixedly connected to the lower end of the limiting member, a return spring is sleeved on the telescopic rod, and the return spring is arranged between the telescopic rod and the limiting member.

[0013] Furthermore, a fixing screw penetrates through the upper part of the circuit board body, and a connecting thread for screwing with the adjustable threaded column is provided at the lower end of the fixing screw.

[0014] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0015] 1. By providing a structure that facilitates the combined installation of independent threaded columns, it is convenient for adjustment and quick replacement, reducing the equipment replacement cost;

[0016] 2. By providing a telescopic rod and a spring mechanism, and cooperating with the bayonet on the mounting seat, automatic limiting can be achieved, improving the installation efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of the bottom view structure of the mounting plate;

[0019] Figure 3 is a schematic diagram of the installation structure of the adjustable threaded column and the fixing screw;

[0020] Figure 4 is a schematic diagram of the combined structure of the connection structure on the limiting member.

[0021] Among them, 1, mounting housing; 2, circuit board body; 3, mounting plate; 4, sliding groove; 5, adjustable threaded column; 6, limiting member; 7, bayonet; 8, bottom sealing plate; 9, telescopic rod; 10, return spring; 11, fixing screw; 12, connecting thread. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a circuit board with positioning holes proposed by the present utility model includes a mounting housing 1 and a circuit board body 2. The circuit board body 2 is arranged above the mounting housing 1. A mounting plate 3 is fixedly connected to the inner wall of the mounting housing 1. It further includes an adjustable fixing unit; the adjustable fixing unit includes a sliding groove 4 opened on the mounting plate 3, and an adjustable threaded column 5 is slidably arranged on the sliding groove 4; a fixing screw 11 penetrates through the upper part of the circuit board body 2, and a connecting thread 12 for screwing with the adjustable threaded column 5 is provided at the lower end of the fixing screw 11.

[0023] The lower end of the adjustable threaded post 5 is inserted with a limiting member 6, and the limiting member 6 is composed of a set of cylinders and a set of circular plate-like structures combined up and down; a bayonet 7 for snap-fitting with the limiting member 6 is provided at the lower part of the mounting plate 3, and the bayonet 7 is opened at the four corners of the sliding groove 4.

[0024] A bottom sealing plate 8 is fixedly connected to the lower part of the installation housing 1; a telescopic rod 9 is fixedly connected to the lower end of the limiting member 6, a return spring 10 is sleeved on the telescopic rod 9, and the return spring 10 is arranged between the telescopic rod 9 and the limiting member 6; it should be noted that the extended length of the telescopic rod 9 is greater than the distance between the mounting plate 3 and the bottom sealing plate 8, and the return spring 10 is in a compressed state at the installation position.

[0025] During specific use, before the user assembles and installs this device, the adjustable threaded post 5 can be slid on the sliding groove 4, and the limiting member 6 is inserted and fixed at the lower part of the adjustable threaded post 5 to prevent it from falling. It should be noted that the minimum number of adjustable threaded posts 5 for use is four, and a number greater than four can be used as spares. Then, the bottom sealing plate 8 is fixed to the bottom of the installation housing 1;

[0026] The position of the adjustable threaded post 5 can be adjusted by sliding it on the sliding groove 4. When it moves to a position close to the four corners, the bayonet 7 corresponds to the limiting member 6, leaving an upward space. At this time, the elastic potential energy of the return spring 10 pushes the limiting member 6 upward and snaps it into the bayonet 7 to achieve limiting, and the telescopic rod 9 extends (when the telescopic rod 9 is in a contracted state, the lower end always fits with the bottom sealing plate 8 to provide a supporting force when the return spring 10 releases elastic potential energy);

[0027] The fixing screw 11 can be rotated to screw and install the connecting thread 12 with the adjustable threaded post 5; when the adjustable threaded post 5 is damaged, press down the adjustable threaded post 5 at the four corner positions, and slide the spare adjustable threaded post 5 to the same position for quick replacement;

[0028] When fixing circuit boards of different specifications, the adjustable threaded post 5 can be slid and adjusted on the sliding groove 4 (only the installation position change within the trajectory of the sliding groove 4) to provide a certain degree of adjustable adaptability;

[0029] The above is the entire usage process of a circuit board with positioning holes.

[0030] The above description of the present utility model and its implementation manners is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural manners and embodiments similar to the technical solution without departing from the gist of the creation of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A circuit board with positioning holes, comprising a mounting housing (1) and a circuit board body (2), the circuit board body (2) is arranged above the mounting housing (1), and a mounting plate (3) is fixedly connected to the inner wall of the mounting housing (1), characterized in that: It further includes an adjustable fixing unit; The adjustable fixing unit includes a sliding groove (4) formed in the mounting plate (3), and an adjustable threaded column (5) is slidably arranged on the sliding groove (4).

2. The circuit board with positioning holes according to claim 1, wherein: A limiting member (6) is inserted at the lower end of the adjustable threaded column (5), and the limiting member (6) is composed of a set of cylinders and a set of circular plate-like structures combined up and down.

3. The circuit board with positioning holes according to claim 2, characterized in that: A bayonet (7) for clamping and cooperating with the limiting member (6) is formed at the lower part of the mounting plate (3), and the bayonet (7) is formed at the four corners of the sliding groove (4).

4. The circuit board with positioning holes according to claim 3, characterized in that: A bottom sealing plate (8) is fixedly connected to the lower part of the installation housing (1).

5. A circuit board with positioning holes according to claim 4, characterized in that: A telescopic rod (9) is fixedly connected to the lower end of the limiting member (6), a return spring (10) is sleeved on the telescopic rod (9), and the return spring (10) is arranged between the telescopic rod (9) and the limiting member (6).

6. The circuit board with positioning holes according to claim 5, characterized in that: A fixing screw (11) penetrates through the upper part of the circuit board body (2), and a connecting thread (12) for screwing with the adjustable threaded column (5) is formed at the lower end of the fixing screw (11).

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