Fastener with external connection function

Abstract

The utility model provides a fastener with an external connection function, which comprises a fastening body, a length adjusting assembly is arranged in the fastening body, a locking assembly used for preventing the length adjusting assembly from loosening is arranged outside the fastening body, a locking state assembly is arranged in the locking assembly, and the length adjusting assembly is connected with the locking state assembly. According to the fastening piece with the external connection function, the connection length can be accurately adjusted through the length adjusting assembly, and different installation requirements are met; the locking assembly and the locking state assembly are dual-guaranteed, looseness after length adjustment is prevented, and the connection stability is ensured; and the diameter adjusting assembly can be flexibly adapted to connecting objects with different sizes, so that the universality of the fastener is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a fastener with external connection function. Background Technology

[0002] Fasteners are connecting accessories that serve a connecting function in specific fields. They are mainly used to connect accessories, enabling disparate parts to be used together. They are characterized by their small size, light weight, and portability.

[0003] While fasteners with external connectivity are currently available in a wide variety and widely used across multiple fields, they cannot be adjusted according to the length of the connected object. This necessitates fastener replacement when the length of the connected object changes, increasing operational complexity and time costs, affecting connection stability, and even reducing overall performance due to incompatibility.

[0004] Therefore, it is necessary to provide a fastener with external functionality to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a fastener with external connection function, which solves the problem that fasteners usually cannot adjust the connection length when connecting objects, which often leads to the need to replace different compatible fasteners.

[0006] To solve the above-mentioned technical problems, the present invention provides a fastener with external function, comprising: a fastening body, wherein a length adjustment component is provided inside the fastening body, a locking component for preventing the length adjustment component from loosening is provided outside the fastening body, a locking state component is provided inside the locking component, and a diameter adjustment component is provided on the right side of the fastening body.

[0007] Preferably, the length adjustment assembly includes an inner groove and an extension plate. The inner groove is symmetrically opened inside the fastening body. A limiting block is fixedly connected to the inner wall of the inner groove. A threaded rod for driving the extension plate is movably connected inside the limiting block. The threaded rod passes through the limiting block and extends to its outside. A limiting ring block for preventing the threaded rod from disengaging is fixedly connected to the outer surface of the threaded rod. A displacement block is slidably connected inside the inner groove. The interior of the displacement block is threadedly connected to the outer surface of the threaded rod. A round rod is fixedly connected to the inner wall of one of the inner grooves. A synchronization block is slidably connected to the outer surface of the round rod. The top of the extension plate is fixedly connected to the bottom of the displacement block. The bottom of the extension plate is fixedly connected to the top of the synchronization block. The threaded rod passes through the fastening body and extends to its outside. A fastening head block is fixedly connected to the right end of the threaded rod.

[0008] Preferably, the locking assembly includes a slot, a receiving groove, and a transverse groove rod. The slot is located outside the fastening head block, the receiving groove is located on the front of the fastening body, the transverse groove rod is installed on the inner wall of the receiving groove, a first elastic element is provided on the outer surface of the transverse groove rod, a transverse sleeve is slidably connected to the outer surface of the transverse groove rod, a blocking block is provided on the inner wall of the transverse sleeve, the blocking block passes through the transverse groove rod and extends to its outside, the outer surface of the blocking block is slidably connected to the inside of the transverse groove rod, a plug block is fixedly connected to the left side of the transverse sleeve, the outside of the plug block is inserted into the inside of the slot, and a retaining ring block for preventing the first elastic element from disengaging is fixedly connected to the right side of the transverse sleeve.

[0009] Preferably, the locking state component includes a square groove that begins at the top of the receiving groove, and a limiting frame for locking the retaining ring block is inserted inside the square groove, the limiting frame passing through the square groove and extending to its outside.

[0010] Preferably, the diameter adjustment assembly includes an adapter groove and a concave block. The adapter groove is located on the right side of the fastening body. The outer surface of the concave block is slidably connected to the interior of the adapter groove. The inner wall of the adapter groove is symmetrically provided with screw holes for installation. A bolt is threaded into the interior of the concave block. The bolt passes through the concave block and extends to its exterior. The left end of the bolt is threaded into the interior of the screw hole. A deformation block is installed on the inner side of the concave block.

[0011] Preferably, the fastening body is provided with an angle adjustment component on its exterior. The angle adjustment component includes a movable groove, which is located on the left side of the fastening body. A rotating shaft is fixedly connected to the inner wall of the movable groove. A rotating plate is movably connected to the exterior of the rotating shaft. A short shaft is movably connected to the interior of the other end of the rotating plate. The short shaft passes through the rotating plate and extends to its exterior. Connecting blocks are fixedly connected to both ends of the short shaft. A mounting plate is fixedly connected to the exterior of the connecting blocks.

[0012] Compared with related technologies, the fastener with external connection function provided by this utility model has the following beneficial effects:

[0013] This utility model provides a fastener with external connection function. The connection length can be precisely adjusted through the length adjustment component to meet different installation requirements. The locking component and the locking state component provide double protection to prevent loosening after length adjustment and ensure connection stability. The diameter adjustment component can flexibly adapt to connection objects of different sizes, enhancing the versatility of the fastener. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the fastener with external function provided by this utility model;

[0015] Figure 2 for Figure 1 The rear view diagram shown;

[0016] Figure 3 for Figure 1 The front sectional view shown is illustrated.

[0017] Figure 4 for Figure 3 The enlarged schematic diagram of part A shown below;

[0018] Figure 5 for Figure 1 The diagram shows a partial cross-sectional view.

[0019] The following are the labeling elements in the diagram: 1. Fastening body; 2. Length adjustment assembly; 21. Inner groove; 22. Extension plate; 23. Limiting block; 24. Threaded screw; 25. Limiting ring block; 26. Displacement block; 27. Round rod; 28. Synchronization block; 29. ​​Fastening head block; 3. Locking assembly; 31. Slot; 32. Receiving groove; 33. Transverse groove rod; 34. First elastic element; 35. Transverse round sleeve; 36. Blocking block; 37. Plug block; 38. Retaining ring block; 4. Locking state assembly; 41. Square groove; 42. Limiting frame; 5. Diameter adjustment assembly; 51. Adaptor groove; 52. Concave block; 53. Screw hole; 54. Bolt; 55. Deformation block; 6. Angle adjustment assembly; 61. Movable groove; 62. Rotating shaft; 63. Rotating plate; 64. Short shaft; 65. Connecting block; 66. Mounting plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the fastener with external function provided by this utility model; Figure 2 for Figure 1 The rear view diagram shown; Figure 3 for Figure 1 The front sectional view shown is illustrated. Figure 4 for Figure 3 The enlarged schematic diagram of part A shown below; Figure 5 for Figure 1The diagram shows a partial cross-sectional view. The fastener with external function includes: a fastening body 1, a length adjustment component 2 disposed inside the fastening body 1, a locking component 3 disposed outside the fastening body 1 to prevent the length adjustment component 2 from loosening, a locking state component 4 disposed inside the locking component 3, and a diameter adjustment component 5 disposed on the right side of the fastening body 1.

[0022] The length adjustment assembly 2 includes an inner groove 21 and an extension plate 22. The inner groove 21 is symmetrically opened inside the fastening body 1. A limiting block 23 is fixedly connected to the inner wall of the inner groove 21. A threaded rod 24 for driving the extension plate 22 is movably connected inside the limiting block 23. The threaded rod 24 passes through the limiting block 23 and extends to its outside. A limiting ring block 25 for preventing the threaded rod 24 from disengaging is fixedly connected to the outer surface of the threaded rod 24. A displacement block 26 is slidably connected inside the inner groove 21. The interior of the displacement block 26 is threadedly connected to the outer surface of the threaded rod 24. A round rod 27 is fixedly connected to the inner wall of one of the inner grooves 21. A synchronization block 28 is slidably connected to the outer surface of the round rod 27. The top of the extension plate 22 is fixedly connected to the bottom of the displacement block 26. The bottom of the extension plate 22 is fixedly connected to the top of the synchronization block 28. The threaded rod 24 passes through the fastening body 1 and extends to its outside. A fastening head block 29 is fixedly connected to the right end of the threaded rod 24.

[0023] The inner groove 21 provides installation space for each component. The limiting block 23 and the limiting ring block 25 are used to constrain the threaded rod 24, allowing it to rotate only and limiting axial displacement. The threaded rod 24 converts rotational motion into linear motion through threaded engagement with the displacement block 26. The displacement block 26 slides in the inner groove 21, driving the extension plate 22 to achieve length adjustment. The round rod 27 cooperates with the synchronizing block 28 to ensure the stability and synchronicity of the movement of the extension plate 22. The fastening head block 29 facilitates the operator to apply force to rotate the threaded rod 24. All components work together to achieve precise adjustment of the connection length.

[0024] The locking assembly 3 includes a slot 31, a receiving groove 32, and a transverse groove 33. The slot 31 is located outside the fastening head block 29, the receiving groove 32 is located on the front of the fastening body 1, and the transverse groove 33 is installed on the inner wall of the receiving groove 32. A first elastic element 34 is provided on the outer surface of the transverse groove 33, and a transverse sleeve 35 is slidably connected to the outer surface of the transverse groove 33. A blocking block 36 is provided on the inner wall of the transverse sleeve 35. The blocking block 36 passes through the transverse groove 33 and extends to its outside. The outer surface of the blocking block 36 is slidably connected to the inside of the transverse groove 33. A plug block 37 is fixedly connected to the left side of the transverse sleeve 35, and the outside of the plug block 37 is inserted into the inside of the slot 31. A retaining ring block 38 for preventing the first elastic element 34 from disengaging is fixedly connected to the right side of the transverse sleeve 35.

[0025] The fastening head block 29 is mounted on the outside of the slot 31 and cooperates with the plug block 37 to achieve plug-in locking; the receiving groove 32 provides installation space for each component; the transverse groove rod 33 serves as a support and guide structure, and the first elastic element 34 mounted on it provides a reset elastic force; the transverse sleeve 35 can slide along the transverse groove rod 33, and the blocking block 36 on its inner wall prevents the transverse sleeve 35 from disengaging from the transverse groove rod 33, while controlling the extension and retraction of the plug block 37 during sliding; the plug block 37 is inserted into the slot 31 to lock the fastening head block 29 and the fastening body 1, preventing the threaded screw 24 from rotating accidentally; the retaining ring block 38 is fixed on the right side of the transverse sleeve 35 to prevent the first elastic element 34 from disengaging from the transverse groove rod 33. The components work together to achieve reliable locking after length adjustment.

[0026] The first elastic element 34 includes, but is not limited to, compression springs, disc springs, wave springs, rubber elastomers, etc.

[0027] In this embodiment, the first elastic element 34 is preferably a compression spring. The compression spring has a simple structure, low cost, and can stably provide axial elastic force. In the locking assembly 3, it can effectively push the transverse sleeve 35 to drive the plug block 37 into the slot 31, thereby achieving reliable locking of the fastening head block 29. Moreover, the elastic deformation and recovery performance of the compression spring are stable, and it can adapt to frequent locking and unlocking operations.

[0028] The locking state component 4 includes a square groove 41 that begins at the top of the receiving groove 32. A limiting frame 42 for locking the retaining ring block 38 is inserted inside the square groove 41. The limiting frame 42 passes through the square groove 41 and extends to its outside.

[0029] When the position of the displacement block 26 needs to be adjusted, first, manually push the transverse sleeve 35 to the right with one hand to compress the first elastic element 34, while simultaneously pulling the limiting frame 42 out of the square slot 41 with the other hand. After the transverse sleeve 35 is pushed to the designated position, reinsert the limiting frame 42 into the square slot 41, and then release the transverse sleeve 35. At this point, the first elastic element 34 is no longer compressed, the limiting frame 42 blocks the retaining ring block 38, and the plug block 37 disengages from the slot 31. The operator can then use a wrench to rotate the tightening head block 29 to adjust the position of the displacement block 26. After adjustment, pull out the limiting frame 42, and the first elastic element 34 pushes the transverse sleeve 35 back to its original position.

[0030] The diameter adjustment assembly 5 includes an adapter groove 51 and a concave block 52. The adapter groove 51 is located on the right side of the fastening body 1. The outer surface of the concave block 52 is slidably connected to the interior of the adapter groove 51. The inner wall of the adapter groove 51 is symmetrically provided with screw holes 53 for installation. The interior of the concave block 52 is threaded with a bolt 54. The bolt 54 passes through the concave block 52 and extends to its exterior. The left end of the bolt 54 is threadedly connected to the interior of the screw hole 53. A deformation block 55 is installed on the inner side of the concave block 52.

[0031] The adapter groove 51 is located on the right side of the fastener body 1, providing sliding space and mounting base for the concave block 52. The screw hole 53 on its inner wall is used to mate with the bolt 54 for installation. The concave block 52 can slide in the adapter groove 51, and its position is fixed by the threaded connection between the bolt 54 and the screw hole 53. Tightening or loosening the bolt 54 can adjust the position of the concave block 52 in the adapter groove 51. The deformation block 55 is installed on the inner side of the concave block 52. When the position of the concave block 52 changes, the deformation block 55 can be squeezed or released, thereby changing the contact range between the fastener and the connected object, realizing the diameter adjustment function and meeting the connection requirements of different sizes.

[0032] Among them, the deformable block 55 includes, but is not limited to, rubber block, elastic metal sheet, silicone body, shape memory alloy sheet, etc.

[0033] In this embodiment, the deformation block 55 is preferably a rubber block. The rubber block has good elasticity and flexibility, and can produce large deformation when squeezed by the concave block 52, tightly adhering to the surface of the object to be connected, enhancing friction and preventing loosening; at the same time, it has stable chemical properties, is wear-resistant and corrosion-resistant, can adapt to a variety of working environments, and is low in cost and easy to process, making it easy to install on the inner side of the concave block 52, effectively achieving adaptation and fastening of objects of different sizes when adjusting the diameter.

[0034] An angle adjustment component 6 is provided on the outside of the fastening body 1. The angle adjustment component 6 includes a movable groove 61, which is located on the left side of the fastening body 1. A rotating shaft 62 is fixedly connected to the inner wall of the movable groove 61. A rotating plate 63 is movably connected to the outside of the rotating shaft 62. A short shaft 64 is movably connected to the other end of the rotating plate 63. The short shaft 64 passes through the rotating plate 63 and extends to its outside. Connecting blocks 65 are fixedly connected to both ends of the short shaft 64. A mounting plate 66 is fixedly connected to the outside of the connecting blocks 65.

[0035] An angle-adjusting component 6 is installed on the outside of the fastening body 1 to adjust the angle of the fastening body 1. A movable slot 61 is formed on the left side of the fastening body 1, providing installation space for other components. A rotating shaft 62 on the inner wall is movably connected to a rotating plate 63, allowing the rotating plate 63 to rotate around the shaft 62. The other end of the rotating plate 63 is movably connected to a connecting block 65 via a short shaft 64, ensuring flexibility in movement between the rotating plate 63 and the connecting block 65. The connecting block 65 is fixedly connected to a mounting plate 66, which can be used to install the entire angle-adjusting component 6 into a designated position. Through the coordinated action of these components, the fastening body 1 can achieve angle adjustment to adapt to different usage scenarios.

[0036] The working principle of the fastener with external connection function provided by this utility model is as follows: First, when using the fastener with external connection function, if the lengths of the connected objects differ, the length adjustment component 2 can be operated. This component is located inside the fastener body 1 and can flexibly change the overall length of the fastener body 1 to accurately adapt to different length connection requirements and ensure the fit of the connection. Then, when the diameters of the connected objects are different, the diameter adjustment component 5 located on the right side of the fastener body 1 can be used. This component can adjust the diameter of the right side of the fastener body 1, allowing the fastener to tightly connect objects of different diameters and enhancing the versatility of the connection. Finally, to ensure the stability and reliability of the connection and prevent the length adjustment component 2 from loosening during use, the locking component 3 located outside the fastener body 1 needs to be activated. At the same time, the locking state component 4 inside the locking component 3 is used to confirm and consolidate the locking effect, ensuring that the length adjustment component 2 remains in the adjusted state, thereby allowing the entire fastener to securely connect all components.

[0037] Compared with related technologies, the fastener with external connection function provided by this utility model has the following beneficial effects:

[0038] This utility model provides a fastener with external connection function. The connection length can be precisely adjusted by the length adjustment component 2 to meet different installation requirements. The locking component 3 and the locking state component 4 provide double protection to prevent loosening after length adjustment and ensure connection stability. The diameter adjustment component 5 can flexibly adapt to connection objects of different sizes, enhancing the versatility of the fastener.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fastener with external connection function, characterized in that, include: The fastening body has a length adjustment component inside and a locking component outside to prevent the length adjustment component from loosening. The locking component has a locking state component inside and a diameter adjustment component on the right side of the fastening body.

2. The fastener with external connection function according to claim 1, characterized in that, The length adjustment assembly includes an inner groove and an extension plate. The inner groove is symmetrically opened inside the fastening body. A limiting block is fixedly connected to the inner wall of the inner groove. A threaded rod for driving the extension plate is movably connected inside the limiting block. The threaded rod passes through the limiting block and extends to its outside. A limiting ring block for preventing the threaded rod from disengaging is fixedly connected to the outer surface of the threaded rod. A displacement block is slidably connected inside the inner groove. The interior of the displacement block is threadedly connected to the outer surface of the threaded rod. A round rod is fixedly connected to the inner wall of one of the inner grooves. A synchronization block is slidably connected to the outer surface of the round rod. The top of the extension plate is fixedly connected to the bottom of the displacement block. The bottom of the extension plate is fixedly connected to the top of the synchronization block. The threaded rod passes through the fastening body and extends to its outside. A fastening head block is fixedly connected to the right end of the threaded rod.

3. The fastener with external connection function according to claim 1, characterized in that, The locking assembly includes a slot, a receiving groove, and a transverse groove. The slot is located on the outside of the fastening head block, the receiving groove is located on the front of the fastening body, the transverse groove is mounted on the inner wall of the receiving groove, a first elastic element is provided on the outer surface of the transverse groove, a transverse sleeve is slidably connected to the outer surface of the transverse groove, a blocking block is provided on the inner wall of the transverse sleeve, the blocking block passes through the transverse groove and extends to its outside, the outer surface of the blocking block is slidably connected to the inside of the transverse groove, a plug block is fixedly connected to the left side of the transverse sleeve, the outside of the plug block is inserted into the inside of the slot, and a retaining ring block for preventing the first elastic element from disengaging is fixedly connected to the right side of the transverse sleeve.

4. The fastener with external connection function according to claim 1, characterized in that, The locking state component includes a square groove that begins at the top of a receiving groove, and a limiting frame for locking the retaining ring block is inserted inside the square groove, the limiting frame passing through the square groove and extending to its exterior.

5. The fastener with external connection function according to claim 1, characterized in that, The diameter adjustment assembly includes an adapter groove and a concave block. The adapter groove is located on the right side of the fastening body. The outer surface of the concave block is slidably connected to the interior of the adapter groove. The inner wall of the adapter groove is symmetrically provided with screw holes for installation. A bolt is threaded into the interior of the concave block. The bolt passes through the concave block and extends to its exterior. The left end of the bolt is threaded into the interior of the screw hole. A deformation block is installed on the inner side of the concave block.

6. The fastener with external connection function according to claim 1, characterized in that, An angle adjustment assembly is provided on the outside of the fastening body. The angle adjustment assembly includes a movable groove, which is opened on the left side of the fastening body. A rotating shaft is fixedly connected to the inner wall of the movable groove. A rotating plate is movably connected to the outside of the rotating shaft. A short shaft is movably connected to the other end of the rotating plate. The short shaft passes through the rotating plate and extends to its outside. Connecting blocks are fixedly connected to both ends of the short shaft. A mounting plate is fixedly connected to the outside of the connecting blocks.

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