PLC circuit board convenient to position

Abstract

The utility model relates to a PLC circuit board, and belongs to the technical field of PLC circuit boards, in particular to a PLC circuit board convenient to position, which comprises a circuit board body, mounting grooves are arranged on the side wall of the circuit board body close to corners, positioning assemblies are arranged in the mounting grooves, each positioning assembly comprises a fixing frame attached to the inner side wall of the corresponding mounting groove, and the fixing frames are arranged on the side wall of the circuit board body. A limiting disc is fixedly installed at the top end of the outer side wall of the fixing frame, two extension plates distributed in a mirror image mode are fixedly installed on the bottom wall face of the fixing frame, expansion rubber is fixedly installed on the bottom wall faces of the two extension plates, and the outer side walls of the two pieces of expansion rubber are in an inclined shape close to the close end; according to the utility model, the downward movement of the circuit board body and the inclined side wall surface of the expansion rubber can be guided, so that the extension plate can be conveniently introduced into the interior of the external copper column, thereby completing the positioning of the circuit board body; the problem that the position of an existing PCB is not easy to determine is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC circuit boards, in particular to a PLC circuit board which is easy to position. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. PCB circuit boards are usually installed on the top of copper pillars with internal threads by screws.

[0003] The Chinese patent with publication number CN219164799U discloses a PCB circuit board that is easy to install. The PCB circuit board that is easy to install includes a circuit board body, on which a plurality of openings are opened; a plurality of rotating shafts, which are rotatably installed in the plurality of openings and are arranged in pairs; a plurality of mounting tubes, which are fixedly installed between the plurality of rotating shafts that are corresponding to each other and are arranged in pairs corresponding to the plurality of openings; and a plurality of clamping rods, which are fixedly installed on the plurality of mounting tubes and are arranged in pairs corresponding to each other. The PCB circuit board that is easy to install provided by the utility model has the advantages of being easy to operate, being able to be installed quickly, and effectively preventing the missing of parts from affecting the installation.

[0004] In the above-mentioned prior art solution, the direction of the clamping rod can be adjusted as needed by cooperating with the mounting tube through the rotating shaft, so that the clamping rod can be extended into the mounting opening to more quickly install the circuit board body on the mounting plate. However, in actual use, the clamping rod can rotate around the rotating shaft, resulting in that when the circuit board moves downward, the clamping rod may be misaligned with the hole on the mounting plate due to the rotation, making it inconvenient to position the circuit board. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a PLC circuit board that is easy to position. The circuit board body is moved downward, and the inclined side wall of the expansion rubber can be guided to facilitate the introduction of the extension board into the interior of the external copper column, thereby completing the positioning of the circuit board body.

[0006] The technical solution to achieve the purpose of the utility model is: a PLC circuit board that is easy to position, including a circuit board body, side walls of the circuit board body are provided with installation grooves near the corners, and positioning components are arranged inside the plurality of installation grooves. The positioning component includes a fixed frame that fits with the inner wall of the installation groove, a limit plate is fixedly installed on the top of the outer wall of the fixed frame, and two extension plates distributed in a mirror image are fixedly installed on the bottom wall of the fixed frame, and expansion rubbers are fixedly installed on the bottom walls of the two extension plates, and the outer walls of the two expansion rubbers are inclined to approach the adjacent end.

[0007] In some embodiments, a fixing assembly is disposed inside the fixing frame, and the fixing assembly includes a downward pressure rod located at the center position inside the fixing frame, and a downward pressure cone is fixedly installed on the bottom wall of the downward pressure rod, and the side wall of the downward pressure cone is in contact with the inner wall of the extension plate.

[0008] In some embodiments, a lower pressure plate is fixedly mounted on the top wall of the lower pressure rod, and a side wall of the lower pressure plate is aligned with an inner side wall of the fixed frame.

[0009] In some embodiments, a connecting rod is fixedly installed on the side wall of the lower pressure plate, and a limit groove aligned with the connecting rod is opened on the inner wall of the fixed frame. The connecting rod is slidably installed inside the limit groove, and a limit block is slidably installed inside the connecting rod, and the limit block is fixedly connected to the bottom end of the connecting rod.

[0010] In some embodiments, a positioning gasket is sleeved on the bottom end of the outer side wall of the fixing frame.

[0011] In some embodiments, two connecting rubbers are disposed at the bottom of the fixing frame, and two ends of the two connecting rubbers are respectively fixedly connected to the side walls of the adjacent expansion rubbers.

[0012] Compared with the prior art, the utility model has the following significant advantages:

[0013] First, in the utility model, when the fixing frame is aligned with the inner wall of the external copper column, the circuit board body moves downward, so that the expansion rubber contacts the inner wall of the copper column, and the inclined side wall of the expansion rubber can guide and facilitate the introduction of the extension plate into the interior of the external copper column, thereby completing the positioning of the circuit board body; solving the problem that the position of the existing PCB circuit board is not easy to determine.

[0014] Second, in the utility model, when the pressing rod is pressed downward, the pressing cone fits with the inner wall of the expansion rubber, so that the bottom end of the expansion rubber expands outward and fits tightly with the thread groove of the inner wall of the copper column, so that the position of the expansion rubber is fixed, thereby achieving the effect of installing the position of the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is the front view of the PLC circuit board that is easy to locate in the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the installation slot of the utility model;

[0018] Figure 3 It is a cross-sectional view of a fixed frame of the utility model.

[0019] Description of reference numerals:

[0020] 1. Circuit board body; 2. Positioning assembly; 21. Fixing frame; 22. Limiting plate; 23. Positioning gasket; 24. Extension plate; 25. Expansion rubber; 26. Connecting rubber; 3. Fixing assembly; 31. Down-pressing rod; 32. Down-pressing plate; 33. Down-pressing cone; 34. Limiting groove; 35. Connecting rod; 36. Limiting block; 4. Mounting groove. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides a PLC circuit board that is easy to locate through improvement. The technical solution of the utility model is:

[0023] like Figure 1 - Figure 3As shown, a PLC circuit board that is easy to position includes a circuit board body 1, and mounting grooves 4 are opened on the side walls of the circuit board body 1 near the corners. Positioning components 2 are arranged inside the plurality of mounting grooves 4. The positioning components 2 include a fixing frame 21 that fits the inner wall of the mounting groove 4, and a limiting plate 22 is fixedly installed on the top of the outer wall of the fixing frame 21; the limiting plate 22 is preferably formed integrally with the fixing frame 21. By forming the limiting plate 22 and the fixing frame 21 integrally, it is convenient to limit the position of the fixing frame 21, thereby ensuring the stability of the position of the fixing frame 21. The bottom wall of the fixed frame 21 is fixedly installed with two extension plates 24 in mirror distribution; by arranging the extension plate 24 at the bottom of the fixed frame 21, the bottom end of the fixed frame 21 is extended, and when the fixed frame 21 is aligned with the inner wall of the external copper column, the downward movement of the circuit board body 1 can make the extension plate 24 inside the external copper column, thereby completing the positioning of the circuit board body 1 and facilitating the installation of the circuit board body 1. The bottom wall of the two extension plates 24 is fixedly installed with expansion rubbers 25, and the outer walls of the two expansion rubbers 25 The bottom of the extension plate 24 is in an inclined shape that is close to one end; an expansion rubber 25 is provided at the bottom of the extension plate 24, so that when the expansion rubber 25 contacts the inner wall of the copper column, the inclined side wall surface of the expansion rubber 25 can be guided, so that the extension plate 24 is conveniently introduced into the interior of the external copper column, and the circuit board body 1 is further conveniently positioned. A positioning gasket 23 is sleeved on the bottom end of the outer wall of the fixing frame 21; the bottom end of the fixing frame 21 is restricted by the positioning gasket 23, and at the same time, when the circuit board body 1 is placed on the copper column, the positioning gasket 23 is located between the copper column and the circuit board. Between the side walls of the main body 1, the bottom wall of the circuit board main body 1 is protected, and two connecting rubbers 26 are arranged at the bottom of the fixing frame 21, and the two ends of the two connecting rubbers 26 are respectively fixedly connected to the side walls of the adjacent expansion rubbers 25; the two expansion rubbers 25 and the two connecting rubbers 26 are preferably integrally formed, and by arranging the expansion rubbers 25 and the connecting rubbers 26 as an integral molding, production is facilitated, and at the same time, the elasticity of the connecting rubber 26 can be used to pull the two expansion rubbers 25 to a nearby end, so that the extension plate 24 can enter the interior of the copper column.

[0024] like Figure 2 and Figure 3As shown, in one embodiment, in order to facilitate the installation of the circuit board body 1, a fixing assembly 3 is provided inside the fixing frame 21, and the fixing assembly 3 includes a pressing rod 31 located at the center position inside the fixing frame 21, and a pressing cone 33 is fixedly installed on the bottom wall of the pressing rod 31, and the side wall of the pressing cone 33 fits with the inner wall of the extension plate 24; when the pressing rod 31 is pressed downward, the pressing cone 33 fits with the inner wall of the expansion rubber 25, so that the bottom end of the expansion rubber 25 expands outward and fits tightly with the thread groove of the inner wall of the copper column, so that the position of the expansion rubber 25 is fixed. The top wall of the lower pressing rod 31 is fixedly mounted with a lower pressing plate 32, and the side wall of the lower pressing plate 32 is aligned with the inner wall of the fixed frame 21; the area of ​​the top of the lower pressing rod 31 is increased by the lower pressing plate 32, which makes it convenient for people to press the lower pressing rod 31, and at the same time, the outer wall of the lower pressing plate 32 is aligned with the inner wall of the fixed frame 21, so that the lower pressing plate 32 can be stuck in the interior of the fixed frame 21, and the interior of the fixed frame 21 is sealed to prevent external dust from falling into the interior of the fixed frame 21, thereby improving the overall aesthetics of the fixed frame 21.

[0025] like Figure 2 and Figure 3 As shown, in one embodiment, in order to position the lower pressure rod 31, a connecting rod 35 is fixedly installed on the side wall of the lower pressure plate 32, and a limiting groove 34 aligned with the connecting rod 35 is opened on the inner wall of the fixed frame 21, and the connecting rod 35 is slidably installed inside the limiting groove 34, and a limiting block 36 is slidably installed inside the connecting rod 35, and the limiting block 36 is fixedly connected to the bottom end of the connecting rod 35; through the mutual cooperation of the limiting groove 34, the connecting rod 35 and the limiting block 36, the position of the lower pressure rod 31 is limited to prevent the lower pressure rod 31 from falling from the inside of the fixed frame 21 and being easily lost.

[0026] The specific working method is: when the fixing frame 21 is aligned with the inner wall of the external copper column, the circuit board body 1 moves downward so that the expansion rubber 25 contacts the inner wall of the copper column, and the inclined side wall of the expansion rubber 25 can be guided to facilitate the introduction of the extension plate 24 into the interior of the external copper column, thereby completing the positioning of the circuit board body 1. When the pressing rod 31 is pressed downward, the pressing cone 33 fits with the inner wall of the expansion rubber 25, so that the bottom end of the expansion rubber 25 expands outward and fits tightly with the threaded groove of the inner wall of the copper column, so that the position of the expansion rubber 25 is fixed, thereby achieving the effect of installing the position of the circuit board body 1.

[0027] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A PLC circuit board that is easy to position, comprising a circuit board body (1), the side walls of the circuit board body (1) are provided with mounting grooves (4) near the corners, and the characteristics are: A positioning assembly (2) is arranged inside each of the plurality of mounting grooves (4), the positioning assembly (2) comprising a fixing frame (21) fitted with an inner wall of the mounting groove (4), a limiting plate (22) fixedly mounted on the top of an outer wall of the fixing frame (21), two mirror-distributed extension plates (24) fixedly mounted on the bottom wall of the fixing frame (21), expansion rubbers (25) fixedly mounted on the bottom walls of the two extension plates (24), and the outer walls of the two expansion rubbers (25) are inclined to approach one end.

2. A PLC circuit board that is easy to locate according to claim 1, characterized in that: A fixing assembly (3) is arranged inside the fixing frame (21), and the fixing assembly (3) comprises a pressing rod (31) located at the center of the fixing frame (21), a pressing cone (33) is fixedly mounted on the bottom wall of the pressing rod (31), and the side wall of the pressing cone (33) is in contact with the inner wall of the extension plate (24).

3. A PLC circuit board that is easy to locate according to claim 2, characterized in that: A lower pressing plate (32) is fixedly mounted on the top wall of the lower pressing rod (31), and the side wall of the lower pressing plate (32) is aligned with the inner side wall of the fixed frame (21).

4. A PLC circuit board that is easy to locate according to claim 3, characterized in that: A connecting rod (35) is fixedly mounted on the side wall of the lower pressure plate (32); a limiting groove (34) aligned with the connecting rod (35) is provided on the inner side wall of the fixed frame (21); the connecting rod (35) is slidably mounted inside the limiting groove (34); a limiting block (36) is slidably mounted inside the connecting rod (35); and the limiting block (36) is fixedly connected to the bottom end of the connecting rod (35).

5. A PLC circuit board that is easy to locate according to claim 1, characterized in that: A positioning gasket (23) is sleeved on the bottom end of the outer wall of the fixing frame (21).

6. A PLC circuit board that is easy to locate according to claim 1, characterized in that: Two connecting rubbers (26) are arranged at the bottom of the fixing frame (21), and the two ends of the two connecting rubbers (26) are respectively fixedly connected to the side walls of the adjacent expansion rubbers (25).

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