Split combined type screw-free main board assembling pin

Abstract

The utility model discloses a split combined type screw-free main board assembly pin which comprises a rotating head and an installation cylinder fixedly installed at the lower end of the rotating head. And a rotating cylinder is clamped and mounted on the outer side of the mounting cylinder, a supporting cylinder is fixedly mounted at the lower end of the rotating cylinder, an expansion groove is formed in the lower end of the supporting cylinder, and meanwhile a limiting block is fixedly mounted on the outer side of the lower end of the supporting cylinder. According to the split combined type screw-free main board assembly pin, the two sets of limiting blocks are arranged on the outer side of the supporting cylinder, the limiting blocks can limit a main board, meanwhile, the split combined type screw-free main board assembly pin is suitable for installation and use of main boards with holes of different sizes, limiting installation of the main boards is rapidly completed, and the use convenience of the assembly pin is improved; the supporting barrel is supported through the supporting strips, the supporting stability of the limiting blocks on the outer side of the supporting barrel to the main board can be guaranteed, the butt joint stability of the mounting barrel and the rotating barrel can be guaranteed through clamping of the limiting strips and the limiting grooves, and therefore the using stability of the assembling pin is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of assembly pin technology, specifically a split-type screwless motherboard assembly pin. Background Technology

[0002] During the operation of the instrument, the various parts on the upper part of the main board inside the instrument need to work together. The main board is generally installed inside the instrument by pins. However, the existing pins have the following defects in use: it is difficult to remove the pins when performing maintenance on the main board. It is difficult to quickly remove the pins, which makes the later maintenance of mechanical equipment difficult, not only reducing the efficiency of maintenance, but also increasing the cost of maintenance.

[0003] The patent with patent authorization announcement number CN208845537U discloses a convenient disassembly type mechanical assembly pin. By setting a conical surface structure at the assembly head position to facilitate assembly, it is easier to assemble into the corresponding assembly hole during assembly. Furthermore, by setting a reinforcing stop structure on the right side of the pin, the accuracy of the assembly position is improved, preventing assembly over-extension during the assembly process and making the assembly more efficient.

[0004] In the aforementioned patent, the pin in the patent solves the problems mentioned above. However, the pin still has the following problems: during the use of the pin, the motherboard needs to be limited by the first disassembly and engagement plane and the second disassembly and engagement plane. However, the first disassembly and engagement plane and the second disassembly and engagement plane are fixedly set, which means that the first disassembly and engagement plane and the second disassembly and engagement plane can only be used for motherboards with fixed-size holes during installation and use, which reduces the applicability of the assembly pin.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing assembly pin structure. Utility Model Content

[0006] The purpose of this utility model is to provide a split-type screwless motherboard assembly pin to solve the problem mentioned in the background art, which is that the first disassembly engagement plane and the second disassembly engagement plane are fixedly set, which means that the first disassembly engagement plane and the second disassembly engagement plane can only be used for motherboards with fixed-size holes during installation and use, thus reducing the applicability of the assembly pin.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a split-type screwless motherboard assembly pin, including a rotating head and an mounting cylinder fixedly installed at the lower end of the rotating head; the rotating cylinder is engaged with the outer side of the mounting cylinder, and a support cylinder is fixedly installed at the lower end of the rotating cylinder, and an expansion groove is opened at the lower end of the support cylinder, while a limit block is fixedly installed on the outer side of the lower end of the support cylinder.

[0008] The lower end of the rotating head is provided with a limiting structure for controlling the position of the main board, and the interior of the mounting cylinder is provided with a positioning structure for controlling the position of the rotating head.

[0009] Preferably, two sets of limiting blocks are symmetrically arranged on the outer side of the lower end of the support cylinder, and the limiting blocks are arranged in a structure that is narrow at the bottom and wide at the top when viewed from the front, and the two sets of limiting blocks are located on both sides of the expansion groove.

[0010] Preferably, the limiting structure includes a support bar, which is fixedly installed inside the rotating head and located inside the mounting cylinder and the support cylinder, with the lower end of the support bar located outside the lower end of the support cylinder.

[0011] Preferably, the limiting structure further includes a limiting strip and a limiting groove. The limiting strip is fixedly installed on the outside of the mounting cylinder, and the limiting groove is opened inside the rotating cylinder. The limiting groove is engaged with the limiting strip, and two sets of limiting grooves and limiting strips are provided inside the rotating cylinder.

[0012] Preferably, the positioning structure includes a fixing groove, which is located on the outside of the mounting cylinder, and a docking block is slidably installed inside the fixing groove. A return spring is fixedly installed at one end of the docking block near the mounting cylinder.

[0013] Preferably, the reset spring is located inside the fixing groove, and the reset spring is fixedly connected to the mounting cylinder. Furthermore, two sets of the reset spring, fixing groove, and docking block are provided inside the mounting cylinder.

[0014] Preferably, the positioning structure further includes a docking groove, which is formed inside the rotating cylinder and engages with a docking block. The docking block is distributed in an inclined structure at one end near the docking groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting two sets of limiting blocks on the outside of the support cylinder, the limiting blocks can limit the main board, and at the same time, it can be used for the installation of main boards with different sized holes, quickly completing the limiting installation of the main board and improving the convenience of using the assembly pins.

[0017] 2. By supporting the support cylinder with support bars, the stability of the support cylinder's outer limiting block in supporting the main board can be ensured;

[0018] 3. Furthermore, the engagement of the limiting strip and the limiting groove ensures the stability of the connection between the mounting cylinder and the rotating cylinder, thereby ensuring the stability of the assembly pin in use;

[0019] 4. Furthermore, by engaging the docking block with the docking slot, the rotating head can be limited, thereby ensuring the stability of the support bar supporting the support cylinder and improving the overall stability of the assembly pin's limiting support to the main board.

[0020] 5. Furthermore, by splicing the mounting cylinder and the rotating cylinder, the mounting pin can be quickly positioned on the motherboard, and the mounting pin can be quickly removed when the motherboard is disassembled, effectively improving the ease of use of the pin. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the limiting block of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the rotating head of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the support strip of this utility model;

[0025] Figure 5 This is a three-dimensional cross-sectional view of the rotating cylinder of this utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the docking block of this utility model.

[0027] In the diagram: 1. Rotating head; 2. Mounting cylinder; 3. Rotating cylinder; 4. Support cylinder; 5. Limiting block; 6. Support bar; 7. Limiting bar; 8. Limiting groove; 9. Fixing groove; 10. Connecting block; 11. Return spring; 12. Connecting groove; 13. Expansion groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1: This embodiment is an example Figures 1-4 The process by which the mounting pin limits the position of the motherboard is shown:

[0030] A rotating head 1 and a mounting cylinder 2 fixedly installed at the lower end of the rotating head 1; a rotating cylinder 3 is engaged with the outer side of the mounting cylinder 2, and a support cylinder 4 is fixedly installed at the lower end of the rotating cylinder 3, and an expansion groove 13 is opened at the lower end of the support cylinder 4, while a limit block 5 is fixedly installed on the outer side of the lower end of the support cylinder 4.

[0031] When using this split-type screwless motherboard assembly pin, first place the motherboard to be positioned in the desired location. Then, the motherboard can be positioned using the assembly pin. During this process, the support cylinder 4 needs to pass through the holes inside the motherboard and the instrument housing. Then, the support bar 6 can pass through the support cylinder 4, causing the lower end of the support cylinder 4 to be in an open state. During this process, the limiting block 5 will limit the motherboard, thus completing the limiting process of the assembly pin on the motherboard, effectively improving the ease of use of the assembly pin.

[0032] Example 2: This embodiment is an example Figures 1-5 The following diagram illustrates the specific positioning process of the assembly pin on the motherboard:

[0033] The lower end of the rotating head 1 is provided with a limiting structure for controlling the position of the main board. Two sets of limiting blocks 5 are symmetrically arranged on the outer side of the lower end of the support cylinder 4. The limiting blocks 5 are arranged in a structure that is narrow at the bottom and wide at the top when viewed from the front. The two sets of limiting blocks 5 are located on both sides of the expansion groove 13. The limiting structure includes a support bar 6, which is fixedly installed inside the rotating head 1. The support bar 6 is located inside the mounting cylinder 2 and the support cylinder 4. At the same time, the lower end of the support bar 6 is located on the outer side of the lower end of the support cylinder 4. The limiting structure also includes a limiting strip 7 and a limiting groove 8. The limiting strip 7 is fixedly installed on the outer side of the mounting cylinder 2. The limiting groove 8 is opened inside the rotating cylinder 3 and is engaged with the limiting strip 7. Two sets of limiting groove 8 and limiting strip 7 are arranged inside the rotating cylinder 3.

[0034] When using this split-type screwless motherboard assembly pin, the rotating cylinder 3 is used to allow the support cylinder 4 to pass through the housing and the motherboard, and the motherboard needs to be positioned between the limiting block 5 and the housing. At this time, the lower ends of the support cylinder 4 move closer together, and then the rotating head 1 can align with the rotating cylinder 3. During the alignment process, the support bar 6 enters the interior of the support cylinder 4 and supports it. At this time, the lower end of the support cylinder 4 expands, causing the two sets of limiting blocks 5 to move away from each other. As the limiting blocks 5 move away from each other, they limit the motherboard, thus making it suitable for motherboards with different sized holes. The limiting bar 7 engages with the limiting groove 8, and after the limiting bar 7 is fully engaged with the limiting groove 8, the rotating head 1 and the rotating cylinder 3 are aligned, thus completing the specific positioning and installation process of the assembly pin on the motherboard, effectively improving the convenience of using the assembly pin.

[0035] Example 3: This embodiment is an example Figures 1-6 The process of assembling the pin for stable support is shown in the figure.

[0036] The mounting cylinder 2 has a positioning structure inside to control the position of the rotating head 1. The positioning structure includes a fixing groove 9, which is located on the outside of the mounting cylinder 2. A docking block 10 is slidably installed inside the fixing groove 9. A return spring 11 is fixedly installed at one end of the docking block 10 near the mounting cylinder 2. The return spring 11 is located inside the fixing groove 9 and is fixedly connected to the mounting cylinder 2. There are two sets of return spring 11, fixing groove 9, and docking block 10 inside the mounting cylinder 2. The positioning structure also includes a docking groove 12, which is located inside the rotating cylinder 3. The docking groove 12 is engaged with the docking block 10. The docking block 10 is distributed in an inclined structure at one end near the docking groove 12.

[0037] When using this split-type screwless motherboard to assemble the pins, the mounting cylinder 2 enters the interior of the rotating cylinder 3. At this time, the rotating cylinder 3 contacts the docking block 10 and presses the docking block 10. The docking block 10 then slides into the fixing groove 9, causing the return spring 11 to retract. After the mounting cylinder 2 and the rotating cylinder 3 are engaged, the motherboard is automatically limited, and the fixing groove 9 aligns with the docking groove 12. The retracted return spring 11 expands and pushes the docking block 10 to move. During the movement of the docking block 10, it moves towards the docking groove 12 and engages with it, thereby limiting the mounting cylinder 2 inside the rotating cylinder 3. This ensures the stability of the support bar 6 supporting the lower end of the support cylinder 4 and increases the overall practicality.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type screwless motherboard assembly pin, comprising a rotating head (1) and an mounting cylinder (2) fixedly mounted on the lower end of the rotating head (1); characterized in that A rotating cylinder (3) is engaged with the outer side of the mounting cylinder (2), and a support cylinder (4) is fixedly installed at the lower end of the rotating cylinder (3). An expansion groove (13) is opened at the lower end of the support cylinder (4), and a limit block (5) is fixedly installed on the outer side of the lower end of the support cylinder (4). The lower end of the rotating head (1) is provided with a limiting structure for controlling the position of the main board, and the interior of the mounting cylinder (2) is provided with a positioning structure for controlling the position of the rotating head (1).

2. The split-combination screwless mainboard assembly pin of claim 1, wherein: Two sets of limiting blocks (5) are symmetrically arranged on the outer side of the lower end of the support cylinder (4), and the limiting blocks (5) are arranged in a structure that is narrow at the bottom and wide at the top when viewed from the front, and the two sets of limiting blocks (5) are located on both sides of the expansion groove (13).

3. The split-combination screwless mainboard assembly pin of claim 1, wherein: The limiting structure includes a support bar (6), which is fixedly installed inside the rotating head (1). The support bar (6) is located inside the mounting cylinder (2) and the support cylinder (4), while the lower end of the support bar (6) is located outside the lower end of the support cylinder (4).

4. The split-combination screwless mainboard assembly pin of claim 1, wherein: The limiting structure also includes a limiting strip (7) and a limiting groove (8). The limiting strip (7) is fixedly installed on the outside of the mounting cylinder (2). The limiting groove (8) is opened inside the rotating cylinder (3) and is engaged with the limiting strip (7). There are two sets of limiting groove (8) and limiting strip (7) inside the rotating cylinder (3).

5. The split-combination screwless mainboard assembly pin of claim 1, wherein: The positioning structure includes a fixing groove (9), which is located on the outside of the mounting cylinder (2). A docking block (10) is slidably installed inside the fixing groove (9). A return spring (11) is fixedly installed at one end of the docking block (10) near the mounting cylinder (2).

6. The split-combination screwless mainboard assembly pin of claim 5, wherein: The reset spring (11) is located inside the fixing groove (9) and is fixedly connected to the mounting cylinder (2). Two sets of reset spring (11), fixing groove (9) and docking block (10) are provided inside the mounting cylinder (2).

7. The split-combination screwless mainboard assembly pin of claim 1, wherein: The positioning structure also includes a docking groove (12), which is located inside the rotating cylinder (3). The docking groove (12) is engaged with the docking block (10), and the docking block (10) is inclined at one end near the docking groove (12).

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