Mechanical part connecting structure

Abstract

This utility model relates to the field of mechanical parts structure technology, and provides a mechanical parts connection structure, including a component body, a through hole at the center of the surface of the component body, and symmetrical limit holes on the inner sidewall of the through hole. A connecting frame is placed inside the through hole, and a limit mechanism is provided on the upper surface of the connecting frame. This utility model uses the cooperation of a first return spring, a limit block, and a groove. In the initial state, the limit block is located inside the moving groove, and the plug-in plate is located in the groove. When connecting two sets of components, the connecting frame is placed in the through hole, and the push-pull block is pulled upward. The push-pull block stretches the second return spring and drives the plug-in plate to move out of the groove. At this time, the first return spring rebounds and drives the limit block to insert into the limit hole to assemble the two sets of component bodies. By turning the knob, the bidirectional screw is rotated to control the gap between the two sets of component bodies, which facilitates subsequent maintenance and improves the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts connection technology, and in particular to a mechanical parts connection structure. Background Technology

[0002] Fastening connections are commonly used connectors in mechanical equipment. They ensure that two or more mating parts can be tightly connected. As is well known, fastening connections between mechanical parts usually involve opening holes in the mechanical parts for screws to pass through, and then using the threaded connection between the screws and nuts to fix the two mechanical parts.

[0003] For example, CN222415540U discloses a fastening connection structure for mechanical parts, belonging to the technical field of parts connection structures. This structure includes part one, part two, a bolt, and a nut. The bottom end of the bolt passes through part one and part two and is threadedly connected to the nut. A circular groove is formed at the top of the bolt, and limiting grooves are formed on both sides of the bottom of the circular groove. T-shaped pressure columns are provided within the limiting grooves, with the ends of the two T-shaped pressure columns extending away from each other to the outside of the bolt. A moving block can drive a pressing block to rotate into the circular groove and press the inclined surface of the inclined block, causing the T-shaped pressure columns to move outward, thereby limiting the bolt and preventing it from loosening. Simultaneously, multiple fastening screws are added to the nut, so that after the nut and bolt fasten the two parts, the nut can be limited, preventing loosening due to vibration and improving the stability of the structure.

[0004] However, in existing technologies, components are usually connected by pre-tightening bolts, which can easily cause micro-movement or loosening under high loads or impacts, resulting in a decrease in overall rigidity and making subsequent disassembly and maintenance inconvenient. This limits the practicality of the device to a certain extent. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that under high loads or impacts, fretting or loosening is easily generated, resulting in a decrease in overall rigidity and making subsequent disassembly and maintenance inconvenient.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical part connection structure, comprising a component body, a through hole at the center of the surface of the component body, symmetrically provided limit holes on the inner sidewall of the through hole, a connecting frame placed inside the through hole, a limit mechanism provided on the upper surface of the connecting frame, a bidirectional lead screw driven at the center of the inner cavity of the connecting frame, a movable plate symmetrically driven on the surface of the bidirectional lead screw, symmetrically provided on both sides of the two sets of movable plates, a limit block slidably provided inside the movable groove, a plurality of first return springs elastically provided between the inner side of the limit block and the inner sidewall of the movable groove, a groove provided on one side of the upper surface of each set of limit blocks, a plug-in plate symmetrically slidably provided on both sides of the upper surface of the connecting frame, a push-pull block fixedly provided on the upper surface of the plug-in plate, a second return spring symmetrically elastically provided between the lower surface of the push-pull block and the upper surface of the connecting frame, and the groove fits into the plug-in plate.

[0007] In a preferred embodiment, an installation block and a movable block are symmetrically fixedly arranged between the upper and lower sets of limiting blocks, and the lower surface of the installation block is fixedly connected to the upper surface of the lower limiting block, the upper surface of the movable block is fixedly connected to the lower surface of the upper limiting block, and the movable block is slidably arranged in the inner cavity of the installation block.

[0008] In a preferred embodiment, guide rods are symmetrically fixed on both sides of the middle of the inner cavity of the connecting frame, and the guide rods are slidably connected to the two sets of movable plates.

[0009] In a preferred embodiment, the top of the bidirectional lead screw extends through to the upper part of the connecting frame and is equipped with a knob for transmission.

[0010] In a preferred embodiment, the limiting mechanism includes a fixing block, which is fixedly disposed on the upper surface of the connecting frame near the knob.

[0011] In a preferred embodiment, the surface of the fixing block is threaded with a screw, and the end of the screw is provided with a limit ring, which limits the movement of the knob.

[0012] In a preferred embodiment, the limiting block is fitted with the limiting hole.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This invention utilizes the interaction of a first reset spring, a limiting block, and a groove. In the initial state, the limiting block is located inside the moving groove, and the plug-in plate is located in the groove. When connecting two sets of components, the connecting frame is placed in the through hole, and the push-pull block is pulled upward. The push-pull block stretches the second reset spring and moves the plug-in plate out of the groove. At this time, the first reset spring rebounds and drives the limiting block to insert into the limiting hole to assemble the two sets of component bodies. By turning the knob, the bidirectional lead screw is rotated to control the gap between the two sets of component bodies, which facilitates subsequent maintenance and improves the practicality of the device.

[0015] This invention features a limiting mechanism. After the two sets of connections are completed, the screw is turned, causing it to rotate in the fixed block and move the limiting ring horizontally. This allows the limiting ring to abut against the knob for limiting, preventing the bidirectional screw from loosening and improving the stability of the device. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a mechanical part connection structure provided by this utility model;

[0017] Figure 2 A schematic diagram of a limiting hole structure for a mechanical part connection structure provided by this utility model;

[0018] Figure 3 A cross-sectional view of the connecting frame structure of a mechanical parts connection structure provided by this utility model;

[0019] Figure 4 This is a three-dimensional top view of a mechanical parts connection structure provided by this utility model.

[0020] Legend:

[0021] 1. Component body; 2. Through hole; 3. Limiting hole; 4. Connecting frame; 5. Two-way lead screw; 6. Knob; 7. Fixing block; 8. Screw; 9. Limiting ring; 10. Guide rod; 11. Movable plate; 12. Moving groove; 13. First return spring; 14. Limiting block; 15. Groove; 16. Insertion plate; 17. Push-pull block; 18. Second return spring; 19. Mounting block; 20. Movable block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a mechanical part connection structure, including a component body 1, a through hole 2 at the center of the surface of the component body 1, limit holes 3 symmetrically formed on the inner sidewall of the through hole 2, a connecting frame 4 placed inside the through hole 2, a limit mechanism provided on the upper surface of the connecting frame 4, a bidirectional lead screw 5 driven at the center of the inner cavity of the connecting frame 4, movable plates 11 symmetrically driven on the surface of the bidirectional lead screw 5, moving grooves 12 symmetrically formed on both sides of the two sets of movable plates 11, limit blocks 14 slidably arranged inside the moving grooves 12, a plurality of first return springs 13 elastically arranged between the inner side of the limit block 14 and the inner sidewall of the moving groove 12, a groove 15 formed on one side of the upper surface of each set of limit blocks 14, and plug-in plates symmetrically slidably arranged on both sides of the upper surface of the connecting frame 4. 16. A push-pull block 17 is fixedly installed on the upper surface of the plug-in plate 16. A second return spring 18 is symmetrically and elastically installed on both sides of the lower surface of the push-pull block 17 and the upper surface of the connecting frame 4. The groove 15 fits into the plug-in plate 16. In the initial state, the limiting block 14 is located inside the moving groove 12. At this time, the plug-in plate 16 is located in the groove 15. When connecting the two sets of parts, the connecting frame 4 is placed in the through hole 2, and the push-pull block 17 is pulled upward. The push-pull block 17 stretches the second return spring 18 and drives the plug-in plate 16 to move out of the groove 15. At this time, the first return spring 13 rebounds and drives the limiting block 14 to insert into the limiting hole 3 to assemble the two sets of parts bodies 1. The knob 6 is turned to drive the bidirectional screw 5 to rotate to control the gap between the two sets of parts bodies 1, which is convenient for subsequent maintenance.

[0024] like Figure 1-4 As shown, mounting blocks 19 and movable blocks 20 are symmetrically fixed between the upper and lower sets of limiting blocks 14. The lower surface of the mounting block 19 is fixedly connected to the upper surface of the lower limiting block 14, and the upper surface of the movable block 20 is fixedly connected to the lower surface of the upper limiting block 14. The movable block 20 is slidably disposed in the inner cavity of the mounting block 19. Through the coordinated work of the upper and lower sets of limiting blocks 14, a dual limiting function is achieved to prevent loosening or displacement. The sliding fit between the mounting block 19 and the movable block 20 ensures smooth movement and reduces jamming. The compact design improves the structural integration, distributes the force evenly, and enhances durability. The modular design facilitates quick installation, disassembly, and maintenance, and has self-resetting and buffer protection functions to improve safety.

[0025] like Figure 1-4 As shown, guide rods 10 are symmetrically fixed on both sides of the inner cavity of the connecting frame 4, and the guide rods 10 are slidably connected to the two sets of movable plates 11.

[0026] like Figure 1-4As shown, the top of the bidirectional lead screw 5 extends through to the upper part of the connecting frame 4, and a knob 6 is driven thereon. The limiting mechanism includes a fixing block 7, which is fixedly set on the upper surface of the connecting frame 4 near the knob 6. A screw 8 is threaded on the surface of the fixing block 7, and a limiting ring 9 is driven at the end of the screw 8. The limiting ring 9 limits the knob 6, and the limiting block 14 fits into the limiting hole 3. The bidirectional lead screw 5 is driven by the knob 6 to achieve up and down adjustment. The fixing block 7, screw 8 and limiting ring 9 are integrated on the connecting frame 4, which can set a reliable stop point at any position to prevent overtravel. The overall compact layout is easy to install and maintain, and can be quickly locked without additional tools. The cooperation between the limiting ring 9 and the knob 6, and between the limiting block 14 and the limiting hole 13, ensures that it will not loosen under vibration or frequent adjustment, and can accurately return to its original position after each adjustment, meeting the requirements of high precision and repeatability adjustment.

[0027] Working principle: During installation and use, align the two sets of component bodies 1, then place the connecting frame 4 into the limiting hole 3. Initially, the limiting block 14 is located inside the moving groove 12, and the plug-in plate 16 is located in the groove 15. When connecting the two sets of components, place the connecting frame 4 into the through hole 2, and pull the push-pull block 17 upward. The push-pull block 17 stretches the second return spring 18 and moves the plug-in plate 16 out of the groove 15. At this time, the first return spring 13 rebounds, causing the limiting block 14 to insert into the limiting hole 3 to assemble the two sets of component bodies 1. Because the movable block 20 slides in the mounting block 19, the upper and lower grooves 15 can... To eliminate the gap between the two sets of component bodies 1, the knob 6 is turned, which drives the bidirectional lead screw 5 to rotate. The bidirectional lead screw 5 drives the two sets of movable plates 11 to move towards each other along the guide rod 10. The movable plates 11 will drive the two sets of component bodies 1 to move towards each other through the limit block 14, so as to adjust the distance between the two sets of component bodies 1. After the adjustment is completed, the screw 8 is turned, which rotates in the thread in the fixed block 7 and drives the limit ring 9 to move horizontally. The limit ring 9 abuts against the knob 6 to limit the movement, prevent the bidirectional lead screw 5 from loosening, and ensure the stability of the device. The overall structure is easy to disassemble and maintain, and is suitable for large-scale application and promotion.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the above-disclosed technical content and apply them to other fields. However, any simple modifications, equivalent variations and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mechanical part connection structure, comprising a part body (1), characterized in that: A through hole (2) is provided at the center of the surface of the component body (1). Limiting holes (3) are symmetrically provided on the inner sidewall of the through hole (2). A connecting frame (4) is placed inside the through hole (2). A limiting mechanism is provided on the upper surface of the connecting frame (4). A bidirectional lead screw (5) is driven at the center of the inner cavity of the connecting frame (4). Movable plates (11) are symmetrically driven on the surface of the bidirectional lead screw (5). Moving grooves (12) are symmetrically provided on both sides of the two sets of moving plates (11). Limiting blocks (14) are slidably provided inside the moving grooves (12). A plurality of first return springs (13) are elastically arranged between the inner side of the limiting block (14) and the inner sidewall of the moving groove (12). A groove (15) is provided on one side of the upper surface of each group of limiting blocks (14). A plug-in plate (16) is symmetrically slidably arranged on both sides of the upper surface of the connecting frame (4). A push-pull block (17) is fixedly arranged on the upper surface of the plug-in plate (16). A second return spring (18) is symmetrically elastically arranged between the two sides of the lower surface of the push-pull block (17) and the upper surface of the connecting frame (4), and the groove (15) fits into the plug-in plate (16).

2. The mechanical parts connection structure according to claim 1, characterized in that: An installation block (19) and a movable block (20) are symmetrically fixed between the upper and lower sets of limiting blocks (14). The lower surface of the installation block (19) is fixedly connected to the upper surface of the lower limiting block (14), and the upper surface of the movable block (20) is fixedly connected to the lower surface of the upper limiting block (14). The movable block (20) is slidably disposed in the inner cavity of the installation block (19).

3. The mechanical parts connection structure according to claim 1, characterized in that: Guide rods (10) are symmetrically fixed on both sides of the inner cavity of the connecting frame (4), and the guide rods (10) are slidably connected to the two sets of movable plates (11).

4. The mechanical parts connection structure according to claim 1, characterized in that: The top end of the bidirectional lead screw (5) extends through to the upper position of the connecting frame (4) and is equipped with a knob (6).

5. The mechanical parts connection structure according to claim 1, characterized in that: The limiting mechanism includes a fixing block (7), which is fixedly disposed on the upper surface of the connecting frame (4) near the knob (6).

6. The mechanical part connection structure according to claim 5, characterized in that: The surface of the fixing block (7) is threaded with a screw (8), and the end of the screw (8) is provided with a limit ring (9), which limits the movement of the knob (6).

7. The mechanical parts connection structure according to claim 1, characterized in that: The limiting block (14) fits into the limiting hole (3).

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