A hand-automatic connection fastening adjusting member and a connection structure thereof

Abstract

The utility model provides a hand -of -foot connection fastening adjusting part and connection structure, including friction element, the friction element is installed in the support nut coaxially and has the interference, the support nut is installed in the connecting nut threadedly, the rotation of locking bolt drives the support nut to rotate along the internal thread of connecting nut to adjust the height, the interference fit of connecting nut is pressed into the inner hole in buckle, the top side of buckle extends out the stop structure and the stop groove of support nut opposite arrangement, metal nut clamp is installed in buckle below and is locked with buckle, is set up in metal nut clamp and is opened the upper through -hole of installing connecting nut and the threaded hole of screwing connection locking bolt, forms the clearance of clamping lower automobile body sheet metal between upper through -hole and threaded hole. The utility model discloses a support nut in setting friction element and manual drive groove realizes hand -of -foot integrated adjustment, utilizes the stop structure on buckle and the stop groove of support nut top and reaches one -way anti -retrogression with the matching of stop groove, and has the characteristics of low cost and high integration.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to the field of axial adjustment components, specifically a manual / automatic integrated fastening adjustment component and its connection structure. Background Technology

[0002] In automotive sheet metal connections, adjusting components are often used to adjust the gap and secure the connection between upper and lower sheet metal parts. Traditional adjusting components mostly use threaded connections to achieve height adjustment, but in actual assembly, they often suffer from problems such as inconvenient adjustment, low assembly efficiency, easy loosening, and poor repeatability.

[0003] Currently, the adjustment components are assembled using a separate nut and clamp structure. When installing thin sheet metal structures such as car body panels, the manual and automatic clamps often cannot be used together, or the alignment is poor or the sheet thickness varies, resulting in insecure fixing. This leads to adjustment failure or loose connection, causing the adjustment to be incomplete. Manual intervention is often required, which increases the assembly cycle and cost.

[0004] A prior art patent (CN219865830U) discloses an axial tolerance adjustment device suitable for plastic sheet connections. The device includes a threaded tube with a large flat washer at its top. The inside of the threaded tube has a snap-fit ​​groove, consisting of three groove bodies. A friction unit is installed inside the threaded tube. A hexagonal nut is fitted around the outside of the threaded tube. A support member is located below the hexagonal nut, and the top of the support member has a first snap-fit ​​structure that engages with the hexagonal nut. The support is attached to the upper surface of the hexagonal nut by a hook. A spring is provided below the support. A second snap-fit ​​structure is provided between the support and the spring. A press-fit nut is riveted to the bottom of the spring. The flat washer on the upper surface has sufficient contact surface with the upper sheet metal. The pressure between the contact surfaces is small, which has a good anti-push-out effect. Each part is structurally independent and easy to combine with each other. The processing cost is low and the adjustment function is excellent. Although the disclosed structure also includes a friction unit, a support plate and a spring, which is equivalent to a metal nut clamp and is in the same field for tolerance adjustment, other structures have not been disclosed.

[0005] A tolerance absorber is disclosed in the prior art (patent number CN211852458U). The key technical points of this absorber are: it includes a compensation component and a base component. The compensation component is mounted on the base component. The compensation component includes a threaded tube, an inner liner, a fixing nut, and a fixing sleeve. The inner liner is inserted into the threaded tube and fixed. The threaded tube is internally threaded to the fixing nut. The fixing nut is inserted into the fixing sleeve and fixed. The fixing sleeve is detachably mounted on the base component. Although the disclosed structures are in the same field and are used for tolerance adjustment, and the snap-fit ​​nut structures are similar but not exactly the same, other structures are not disclosed.

[0006] A tolerance adjustment device is disclosed in the prior art (patent number CN221221098U). This device includes an upper support, a lower support, a threaded tube, a friction unit, and an adjusting nut. The threaded tube has a left-handed external thread on its surface and is fixedly connected to the upper support. The adjusting nut, which mates with the threaded tube, has a left-handed internal thread on its inner wall and is locked and fixedly connected to the lower support. The friction unit is fixedly fitted inside the threaded tube and is used to rotate the threaded tube by interference fit with a bolt. The lower support includes a retainer with a lower hook below it. The upper part of the sleeve is provided with an anti-disengagement hook for limiting the adjusting nut. The top of the anti-disengagement hook is provided with a damping mechanism extending to one side of the upper support member. The upper support member is a hollow flat pad, and the bottom is provided with a blocking mechanism that cooperates with the damping mechanism. The advantage of this utility model is that by setting the damping mechanism and the blocking mechanism, the blocking mechanism blocks the damping mechanism so that the upper support member cannot rotate continuously, which plays a role in preventing it from falling off during transportation. Although the disclosed one also includes a friction unit and a lower support member, which is equivalent to a buckle and is in the same field, used for tolerance adjustment, other structures have not been disclosed. Summary of the Invention

[0007] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a manual / automatic integrated fastening and adjustment component and its connection structure to solve the difficulties of the prior art.

[0008] To achieve the above and other related objectives, this utility model provides a manual / automatic integrated connection fastening adjustment component and its connection structure, comprising: Friction element 1, wherein a through hole is provided inside the friction element 1 through which the locking bolt 6 passes; A support nut 2, wherein a friction element 1 is coaxially and interference-fitted inside the support nut 2, and a platform supporting the upper body sheet metal 9 is formed at the top; The connecting nut 4, the support nut 2 is threadedly installed inside the connecting nut 4, and the height can be adjusted by rotating the locking bolt 6 to drive the support nut 2 to rotate along the internal thread of the connecting nut 4; The buckle 3, the connecting nut 4 is pressed into the inner hole of the buckle 3 with an interference fit, and the top side of the buckle 3 extends upward to form a stop structure 32 that matches the stop groove 26 of the support nut 2 to form a one-way anti-retraction mechanism. A metal nut clip 5 is installed below the buckle 3 and locked to the buckle 3. The metal nut clamp 5 has an upper through hole 55 for installing the connecting nut 4 and a threaded hole 56 for threaded connection locking bolt 6. A gap is formed between the upper through hole 55 and the threaded hole 56 to clamp the lower body sheet metal 7. After the locking bolt 6 is tightened, the upper through hole 55 and the threaded hole 56 are coaxially arranged.

[0009] In this technical solution, a friction element 1 is installed inside the support nut 2 and is screwed into the connecting nut 4 to form a height adjustment structure. The flange at the top of the support nut 2 supports the upper body sheet metal 9. The connecting nut 4 is press-fitted into the inner hole of the buckle 3 and forms a one-way anti-reverse mechanism through the stop structure 32 at the top of the buckle 3 and the stop groove 26 at the top of the support nut 2. The buckle 3 is locked with the metal nut clamp 5. The metal nut clamp 5 clamps the lower body sheet metal 7. When adjusting the gap, the overall locking is achieved by a locking bolt 6 that runs through all components.

[0010] According to the preferred embodiment, the support nut 2 includes: The support nut body 21 has a friction element mounting hole 23, a manual drive groove 24 and a tail hole 25 opened along the axial direction inside the support nut body 21. The inner diameter of the manual drive groove 24 is larger than the inner diameter of the friction element mounting hole 23 and the inner diameter of the tail hole 25 in sequence. A friction element 1 is installed in the friction element mounting hole 23. The inner diameter of the tail hole 25 is smaller than the inner diameter of the friction element 1. The top flange 22 of the support nut is integrally disposed on the top of the support nut body 21 and extends horizontally outward. A recessed stop groove 26 is provided on the outer periphery of the top flange 22 of the support nut.

[0011] Furthermore, the stop groove 26 is designed in an L-shape.

[0012] In this technical solution, the support nut 2 provides both manual and automatic adjustment modes using the manual drive groove 24 and the friction element mounting hole 23. When the locking bolt 6 is screwed in, the design of the tail hole inner diameter being smaller than the inner diameter of the friction element 1 causes the locking bolt 6 to squeeze the friction element 1, generating a huge frictional force, thereby driving the entire support nut 2 to rotate and achieve automatic lifting adjustment. If the automatic adjustment is not in place, a tool can be directly inserted into the hexagonal manual drive groove 24 for precise fine adjustment. It also provides a stop groove 26 to form a mating structure with the stop structure 32 on the buckle 3, thus achieving the effect of anti-retraction function.

[0013] According to the preferred embodiment, a set of stop grooves 26 are centrally symmetrically arranged on the top flange 22 of the support nut; The top flange 22 of the two support nuts on both sides, perpendicular to the direction of the set of stop grooves 26, is arranged in a horizontal structure.

[0014] Furthermore, the distance between the centers of the stops 26 and the distance between the centers of the horizontal structures are the same.

[0015] In this technical solution, the two stop grooves 26 are used to engage with the stop structure 32 of the buckle 3, which is conducive to realizing the one-way stop function. The centrally symmetrical structure is conducive to ensuring the balance of forces and preventing the support nut 2 from deflecting or jamming during adjustment and locking. This effectively improves the stability and reliability of the adjusting component and helps to extend its service life.

[0016] According to the preferred embodiment, the depth of the manual drive groove 24 is greater than the height of the top flange 22, and the manual drive groove 24 adopts a regular polygonal structure.

[0017] Furthermore, the manual drive slot 24 adopts a hexagonal structure.

[0018] In this technical solution, the manual drive slot 24 adopts a hexagonal structure with a depth greater than the height of the top flange. During use, it can ensure that the hexagonal wrench has sufficient depth to be fully inserted into the manual drive slot 24, thereby ensuring sufficient torque transmission contact area and engagement depth, effectively preventing the wrench from slipping or coming out, and significantly improving the convenience and stability of manual adjustment.

[0019] According to the preferred embodiment, the connecting nut 4 includes: The connecting nut body 41 has a through hole for installing the supporting nut body 21, and the outer side surface of the connecting nut body 41 is provided with knurling 43. The top flange 42 of the connecting nut is integrally set on the top of the connecting nut body 41 and extends horizontally outward. The outer diameter of the top flange 42 of the connecting nut is larger than the inner diameter of the buckle 3, but not larger than the outer diameter of the buckle body 31.

[0020] Furthermore, the knurling 43 uses vertical knurling.

[0021] In this technical solution, the connecting nut 4 is tightly fitted with the positioning protrusion on the inner wall of the buckle 3 through the vertical knurling 43 on its outer side, so as to achieve a reliable interference connection and effectively prevent relative rotation between the two. Since the outer diameter of the top flange 42 of the connecting nut is larger than the inner diameter of the buckle 3, it can achieve the effect of quick positioning when the buckle 3 is pressed in, and can avoid the occurrence of inaccurate positioning.

[0022] According to the preferred embodiment, the buckle 3 includes: The buckle body 31 has a through hole for interference fit connection to the nut body 41. The stop structure 32 is installed on the outside of the buckle body 31 and protrudes upward, with the top of the stop structure 32 being higher than the buckle body 31. The latch 33 is integrally disposed on both sides of the latch body 31 and extends downward, and the latch 33 has a J-shaped structure facing outward.

[0023] Furthermore, the inner surface of the buckle body 31 is provided with positioning protrusions 34 corresponding to the knurling 43 of the vertical lines, and multiple positioning protrusions 34 are arranged in a ring at equal intervals.

[0024] In this technical solution, the upward-protruding stop structure 32 is higher than the buckle body 31 after assembly, and can accurately engage with the L-shaped stop groove 26 on the top of the support nut 2, realizing a reliable one-way anti-retraction function. This allows the support nut 2 to be effectively locked when screwed in to prevent over-screwing, while overcoming the elastic deformation resistance when screwed out, thus achieving the dual effect of preventing loosening during transportation and stabilizing assembly. In addition, a locking foot 33 is provided to mate with the mating structure inside the metal nut clip 5, which helps to firmly lock the metal nut clip 5 in the slot 54, thereby connecting the upper structure with the lower clamping structure and achieving stable, reliable and rapid installation.

[0025] According to the preferred embodiment, the metal nut clip 5 includes a V-shaped snap-fit ​​structure 51 and a snap-fit ​​opening 54 mounted on the V-shaped snap-fit ​​structure 51 to engage the snap-fit ​​3. The V-shaped buckle structure 51 is formed by stamping and bending of sheet metal, including an upper structure 52 and a lower structure 53. In the free state, the included angle of the connecting end is greater than the included angle of the opening end, and the opening end is introduced into the lower body sheet metal 7. The upper structure 52 has an upper through hole 55, and the lower structure 53 has a threaded hole 56 extending downward. After the V-shaped buckle structure 51 buckles the lower body sheet metal 7, the upper through hole 55 and the threaded hole 56 are coaxially arranged.

[0026] Furthermore, the inner diameter of the through hole 55 is larger than the inner diameter of the threaded hole 56.

[0027] In this technical solution, the metal nut clip 5, through its V-shaped buckle structure 51, can easily and adaptively clamp lower body sheet metal 7 of different thicknesses by using its preset tilt angle in the free state. During the screwing of the locking bolt 6, the V-shaped buckle structure 51 can elastically close to ensure that the threaded hole 56 and the upper through hole 55 are automatically aligned and coaxial. The large inner diameter upper through hole 55 of the upper structure provides the necessary clearance space for the bolt, effectively avoiding interference between the locking bolt 6 and the metal nut clip 5 during final locking. This ensures that the locking bolt 6 can be smoothly inserted into the threaded hole 56 of the lower structure 53 and apply a uniform clamping force, ultimately achieving a firm and reliable connection with the lower body sheet metal 7.

[0028] According to the preferred embodiment, the upper structure 52 is integrally provided with buckle connection ends 57 on both sides of the lower body sheet metal 7 in the direction of introduction, and the buckle connection ends 57 are provided with slots 54 for mating buckle feet 33.

[0029] Furthermore, the top of the snap-fit ​​connection end 57 is inclined outward in an arc shape.

[0030] In this technical solution, the buckle connection end 57 and the bayonet 54 are effectively and quickly locked together. Secondly, the arc-shaped inclined design at the top of the buckle connection end 57 plays a guiding role during assembly, which can smoothly guide the buckle foot into the bayonet 54, thus improving the assembly efficiency.

[0031] According to the preferred embodiment, the lower structure 53 is located on one side of the opening end and is inclined downward in an arc shape, and is provided with an anti-detachment hole 58.

[0032] Furthermore, anti-detachment protrusions 8 are provided on the lower body sheet metal 7 corresponding to the anti-detachment holes 58.

[0033] In this technical solution, the downward-facing arc-shaped inclined design of the lower structure 53 can smoothly guide the lower body sheet metal 7 into the V-shaped buckle structure 51 during installation, while the anti-detachment protrusion 8 can prevent the metal nut clip 5 from falling off the sheet metal after being snapped in, thus improving stability.

[0034] According to the preferred embodiment, a component connection structure using a manual-automatic integrated fastening and adjustment component and its connection structure is also provided, including a manual-automatic integrated fastening and adjustment component and its connection structure, an upper body sheet metal 9, a lower body sheet metal 7, and a locking bolt 6. The upper body sheet metal 9 is abutted by the top of the supporting nut 2; The lower body sheet metal 7 is clamped in the metal nut clamp 5; The locking bolt 6 passes through the upper body sheet metal 9 and is inserted into the lower body sheet metal 7 below. Under the action of the friction element 1, the manual and automatic connection fastening adjustment component and its connection structure are rotated to adjust the distance between the upper body sheet metal 9 and the lower body sheet metal 7. The lower body sheet metal 7 is provided with guide strips 10 corresponding to the lower structure 53.

[0035] Furthermore, the guide bar 10 is provided with a set where the width of the entrance end is greater than the width of the other side.

[0036] In this technical solution, the upper body sheet metal 9 is supported on the top of the adjusting component, and the lower body sheet metal 7 is clamped in the metal nut clamp 5 and connected by locking bolts 6, which realizes a stable connection between the upper and lower body sheet metals and precise adjustment of the gap; the guide strip 10 set on the lower body sheet metal 7 can quickly guide during installation and improve installation efficiency.

[0037] This utility model has the following beneficial effects: (1) Manual and automatic adjustment: By setting friction elements and manual drive groove in the support nut, the dual functions of automatic drive of power tool and manual fine adjustment of wrench are realized, ensuring the accuracy of gap adjustment in a variety of situations; (2) One-way anti-retraction structure: The stop structure on the buckle cooperates with the L-shaped stop groove on the top of the support nut to form a one-way stop, which effectively prevents loosening in transportation and vibration environment, and ensures the consistency of product condition and assembly.

[0038] (3) Low cost and high integration: The buckle and metal nut clamp integrate multiple parts into one, which significantly reduces the number of parts and simplifies the assembly process, thereby reducing its own manufacturing cost and production cost.

[0039] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0040] Figure 1 The diagram shown is a three-dimensional structural schematic of Embodiment 1; Figure 2 Displayed as the front view of Embodiment 1; Figure 3 show Figure 2 AA section view; Figure 4 The diagram shows the assembly between the friction element and the support nut in Embodiment 1. Figure 5 The image shown is a cross-sectional view of the support nut in Example 1; Figure 6 The diagram shown is an enlarged three-dimensional structural schematic of the connecting nut in Embodiment 1; Figure 7 The diagram shown is an enlarged three-dimensional structural schematic of the buckle in Embodiment 1; Figure 8 The diagram shown is an enlarged three-dimensional structural schematic of the metal nut clip in Embodiment 1; Figure 9 This is a magnified three-dimensional structural diagram of the metal nut clip from another perspective in Embodiment 1; Figure 10 The diagram shown is a three-dimensional structural schematic of Example 2; Figure 11 This is a three-dimensional structural schematic diagram from another perspective of Embodiment 2; Figure 12 Displayed as the front view of Embodiment 2; Figure 13The view shown is a cross-sectional view of Embodiment 2; Label Explanation 1. Friction elements; 2. Support nut; 21. Support nut body; 22. Support nut top flange; 23. Friction element mounting hole; 24. Manual drive groove; 25. Tail hole; 26. Stop groove. 3. Buckle; 31. Buckle body; 32. Stop structure; 33. Buckle foot; 34. Positioning protrusion; 4. Connecting nut; 41. Connecting nut body; 42. Connecting nut top flange; 43. Knurling. 5. Metal nut clip; 51. V-shaped buckle structure; 52. Upper structure; 53. Lower structure; 54. Bayonet; 55. Upper through hole; 56. Threaded hole; 57. Buckle connection end; 58. Anti-disengagement hole. 6. Tighten the bolts; 7. Lower body sheet metal; 8. Anti-slip protrusions; 9. Upper body sheet metal work; 10. Guide strip. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0042] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0043] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0044] This utility model proposes a manual / automatic integrated fastening and adjusting component and its connecting structure for use in automotive sheet metal connections. This utility model does not limit the type of sheet metal, but the structure of the manual / automatic integrated fastening and adjusting component and its connecting structure is particularly suitable for the needs of adjusting the gap between the upper and lower sheet metal of automobiles. Example

[0045] The manual / automatic integrated fastening and adjusting component and its connection structure proposed in this utility model mainly include a friction element 1, a support nut 2, a connecting nut 4, a buckle 3, and a metal nut clip 5. See also... Figure 1 It shows the arrangement of friction element 1, support nut 2, connecting nut 4, buckle 3 and metal nut clip 5.

[0046] To address the issue of manual adjustment when automatic adjustment is insufficient, and to resolve the problem in the background art where existing adjustment components often fail to hold securely or become loosely connected due to unstable clamping, misalignment, or variations in sheet thickness when installed on thin sheet metal structures like car bodies, resulting in incomplete adjustment and requiring manual intervention, thus increasing assembly time and costs, this embodiment provides a solution where a friction element 1 is installed inside the support nut 2 and screwed into the connecting nut 4 to form a height adjustment structure. The flange at the top of the support nut 2 supports the upper car body sheet metal 9, and the connecting nut 4 is press-fitted into the inner hole of the buckle 3. The buckle 3's top stop structure 32 and the support nut 2's top stop groove 26 form a one-way anti-reverse mechanism. The buckle 3 is locked to the metal nut clamp 5. The metal nut clamp 5 clamps the lower car body sheet metal 7, and the gap is adjusted by a locking bolt 6 that runs through all components to achieve overall locking.

[0047] Specifically, the support nut 2 includes a support nut body 21 and a support nut top flange 22. The support nut body 21 has an axially oriented friction element mounting hole 23, a manual drive groove 24, and a tail hole 25. A friction element 1 is coaxially and interference-fitted into the friction element mounting hole 23. The inner diameter of the tail hole 25 is smaller than the inner diameter of the friction element 1 to abut against the friction element 1, improving installation efficiency. In this embodiment, the inner diameter of the manual drive groove 24 is successively larger than the inner diameter of the friction element mounting hole 23 and the inner diameter of the tail hole 25. The support nut 2 provides both manual and automatic adjustment modes using the manual drive groove 24 and the friction element mounting hole 23. When the locking bolt 6 is tightened... When screwed in, the design of the inner diameter of the tail hole being smaller than the inner diameter of the friction element 1 causes the locking bolt 6 to squeeze the friction element 1, generating a huge frictional force, which in turn drives the entire support nut 2 to rotate and achieve automatic lifting and adjustment. If the automatic adjustment is not in place, the tool can be directly inserted into the hexagonal manual drive groove 24 for precise fine adjustment. The preferred manual drive groove 24 adopts a hexagonal structure with a depth greater than the height of the top flange. During use, it can ensure that the hexagonal wrench has sufficient depth to be fully inserted into the manual drive groove 24, thereby ensuring sufficient torque transmission contact area and engagement depth, effectively preventing the wrench from slipping or coming out, and significantly improving the convenience and stability of manual adjustment. Furthermore, the top flange 22 of the support nut is integrally set on the top of the support nut body 21 and extends horizontally outward. A recessed stop groove 26 is provided on the outer periphery of the top flange 22 of the support nut. The stop groove 26 is designed in an L-shape and forms a mating structure with the stop structure 32 on the buckle 3, achieving the effect of anti-retraction function. A set of stop grooves 26 is centrally symmetrically arranged on the top flange 22 of the support nut. The two top flanges 22 of the support nut perpendicular to the direction of the set of stop grooves 26 are arranged in a horizontal structure. The distance through the center between the set of stop grooves 26 is the same as the distance through the center between the set of horizontal structures. The two stop grooves 26 are used to engage with the stop structure 32 of the buckle 3, which is conducive to realizing the one-way stop function. The centrally symmetrical structure is conducive to ensuring force balance and preventing the support nut 2 from deflecting or jamming during adjustment and locking, effectively improving the stability and reliability of the adjusting part and extending its service life.

[0048] As mentioned above, the support nut 2 is threadedly installed inside the connecting nut 4. The height is adjusted by rotating the locking bolt 6, which causes the support nut 2 to rotate along the internal thread of the connecting nut 4. In this embodiment, the connecting nut 4 includes a connecting nut body 41 and a connecting nut top flange 42. The connecting nut body 41 has a through hole for installing the support nut body 21. Vertical knurling 43 is provided on the outer surface of the connecting nut body 41. The connecting nut 4 tightly engages with the positioning protrusion on the inner wall of the buckle 3 through the vertical knurling 43 on its outer surface. The inner surface of the buckle body 31... Positioning protrusions 34 are provided on the knurling 43 corresponding to the vertical lines on the surface. Multiple positioning protrusions 34 are arranged in a ring at equal intervals to achieve a reliable interference fit and effectively prevent relative rotation between the two. The top flange 42 of the connecting nut is integrally set on the top of the connecting nut body 41 and extends horizontally outward. The outer diameter of the top flange 42 of the connecting nut is larger than the inner diameter of the buckle 3, but not larger than the outer diameter of the buckle body 31. Since the outer diameter of the top flange 42 of the connecting nut is larger than the inner diameter of the buckle 3, it can achieve a quick positioning effect when the buckle 3 is pressed in, and can avoid the occurrence of inaccurate positioning.

[0049] Based on this, the preferred embodiment of the buckle 3 includes a buckle body 31, a stop structure 32, and a buckle foot 33. The buckle body 31 has a through hole for interference fit to connect the nut body 41. The stop structure 32 is installed on the outside of the buckle body 31 and protrudes upward. The top of the stop structure 32 is higher than the buckle body 31 and has an L-shaped stop groove 26 that can accurately engage with the top of the support nut 2, so as to achieve a reliable one-way anti-retraction function. This allows the support nut 2 to be effectively locked when screwed in to prevent over-screwing, while it needs to overcome the elastic deformation resistance when screwed out, thus achieving the dual effect of preventing loosening during transportation and stabilizing assembly. The locking feet 33 are integrally set on both sides of the buckle body 31 and extend downward. The locking feet 33 have an outward J-shaped structure. The locking feet 33 are designed to match the matching structure inside the metal nut clip 5, which helps to firmly lock the metal nut clip 5 in the slot 54, thereby connecting the upper structure and the lower clamping structure and realizing stable, reliable and quick installation.

[0050] It should be specifically explained that the metal nut clip 5 includes a V-shaped buckle structure 51 and a latch 54 installed on the V-shaped buckle structure 51 to mate with the buckle 3. The V-shaped buckle structure 51 is formed by stamping and bending sheet metal and includes an upper structure 52 and a lower structure 53. In the free state, the included angle of the connecting end is greater than the included angle of the opening end. The opening end is used to guide the lower body sheet metal 7. The metal nut clip 5 can easily guide and adaptively clamp lower body sheet metal 7 of different thicknesses through the preset tilt angle of its V-shaped buckle structure 51 in the free state. Next, an upper through hole 55 is provided in the upper structure 52, and a snap-fit ​​connection end 57 is integrally provided on both sides of the lower body sheet metal 7 in the direction of introduction. The snap-fit ​​connection end 57 is provided with a slot 54 for mating snap feet 33. The top of the snap-fit ​​connection end 57 is inclined outward in an arc shape. The snap-fit ​​connection end 57 and the slot 54 are effectively and quickly locked together. In addition, the arc-shaped inclined design at the top of the snap-fit ​​connection end 57 plays a guiding role during assembly, which can smoothly guide the snap feet into the slot 54, improving assembly efficiency. In addition, the lower structure 53 has a threaded hole 56 extending downwards, with one side of the opening end inclined downwards in an arc shape. During installation, it can smoothly guide the lower body sheet metal 7 into the V-shaped buckle structure 51. The lower structure 53 also has an anti-detachment hole 58, and the lower body sheet metal 7 is provided with an anti-detachment protrusion 8 corresponding to the anti-detachment hole 58. The anti-detachment protrusion 8 can prevent the metal nut clip 5 from falling off the sheet metal after being snapped in, thus improving stability. During the screwing of the locking bolt 6, the V-shaped snap-fit ​​structure 51 can elastically retract to ensure that the threaded hole 56 and the upper through hole 55 are automatically aligned and coaxial; the large inner diameter upper through hole 55 of the upper structure provides the necessary clearance space for the bolt, effectively avoiding interference between the locking bolt 6 and the metal nut clip 5 during final tightening, thereby ensuring that the locking bolt 6 can be smoothly inserted into the threaded hole 56 of the lower structure 53 and apply a uniform clamping force, ultimately achieving a firm and reliable connection with the lower body sheet metal 7. Example

[0051] like Figure 10 As shown, this embodiment uses the structure of Embodiment 1 for component connection, specifically including a manual / automatic integrated fastening and adjusting component and its connecting structure, an upper body sheet metal 9, a lower body sheet metal 7, and a locking bolt 6. The upper body sheet metal 9 is supported by the top of the supporting nut 2. The lower body sheet metal 7 is clamped in the metal nut clamp 5. The locking bolt 6 passes through the upper body sheet metal 9 and is inserted into the lower body sheet metal 7 below. Under the action of the friction element 1, the manual / automatic integrated fastening and adjusting component and its connecting structure are driven to rotate and adjust the gap between the upper body sheet metal 9 and the lower body sheet metal 7. The lower body sheet metal 7 is provided with a guide strip 10 corresponding to the lower structure 53. A set of guide strips 10 is provided, with the width of the entrance end being greater than the width of the other side. The upper body sheet metal 9 is supported by the top of the adjusting component, and the lower body sheet metal 7 is clamped in the metal nut clamp 5 and connected by the locking bolt 6, realizing a stable connection and precise gap adjustment between the upper and lower body sheet metals. The guide strip 10 provided on the lower body sheet metal 7 can quickly guide during installation and improve installation efficiency.

[0052] Before use, first install the friction element 1 into the support nut 2, then screw the assembled support nut 2 into the connecting nut 4 for threaded connection, then install the buckle 3 into the metal nut clamp 5, and finally assemble the previously assembled connecting nut 4 according to the positional alignment of the stop area structure of the support nut 2 and the buckle 3.

[0053] When using it, the following steps are included: First, insert the metal nut clip 5 into the appropriate plate thickness, and then drive in the locking bolt 6. When the locking bolt 6 rotates inside the product, the friction force of the friction element 1 will be greater than the stopping force of the clip 3 and the support nut 2, causing the support nut 2 to rotate and the flange to rise and meet the sheet metal support above the customer. Then the bolt continues to rotate, locking into the threaded hole of the metal nut clamp 5; When the threads are tightened, the V-shaped jaw of the metal nut clamp 5 will be parallel to the body sheet metal when subjected to the tightening force. At this time, the gap between the upper body sheet metal 9 and the lower body sheet metal 7 is adjusted and then tightened to form a connection between the upper and lower body sheet metal. If the automatic installation fails to raise the device to the correct position due to environmental factors, the device can be manually adjusted using the manual drive groove 24 inside the support nut 2 before tightening. The locking bolt 6 can then be used to secure the device.

[0054] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A manual / automatic integrated fastening and adjusting component and its connecting structure, characterized in that, include: Friction element (1), wherein a through hole is provided in the friction element (1) through which the locking bolt (6) passes; A support nut (2) is provided, which is coaxially and interference-fitted with a friction element (1) and forms a platform on top to support the upper body sheet metal (9). The connecting nut (4) and the support nut (2) are threadedly installed inside the connecting nut (4). The height can be adjusted by rotating the locking bolt (6) to drive the support nut (2) to rotate along the internal thread of the connecting nut (4). The buckle (3) is press-fitted into the inner hole of the buckle (3) with the connecting nut (4) and the top side of the buckle (3) extends upward to form a stop structure (32) which matches the stop groove (26) of the support nut (2) to form a one-way anti-reverse mechanism. A metal nut clip (5) is installed below the buckle (3) and locked to the buckle (3). The metal nut clamp (5) has an upper through hole (55) for installing the connecting nut (4) and a threaded hole (56) for threaded connection locking bolt (6). A gap is formed between the upper through hole (55) and the threaded hole (56) to clamp the lower body sheet metal (7). After the locking bolt (6) is tightened, the upper through hole (55) and the threaded hole (56) are coaxially arranged.

2. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 1, characterized in that, The support nut (2) includes: The support nut body (21) has a friction element mounting hole (23), a manual drive groove (24) and a tail hole (25) opened along the axial direction inside the support nut body (21). The inner diameter of the manual drive groove (24) is larger than the inner diameter of the friction element mounting hole (23) and the inner diameter of the tail hole (25) in sequence. A friction element (1) is installed in the friction element mounting hole (23). The inner diameter of the tail hole (25) is smaller than the inner diameter of the friction element (1). The top flange (22) of the support nut is integrally set on the top of the support nut body (21) and extends horizontally outward. A recessed stop groove (26) is provided on the outer periphery of the top flange (22).

3. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 2, characterized in that, A set of stop grooves (26) are centrally symmetrically arranged on the top flange (22) of the support nut; The top flanges (22) of the two side support nuts, which are perpendicular to the direction of the set of stop grooves (26), are arranged in a horizontal structure.

4. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 3, characterized in that, The depth of the manual drive groove (24) is greater than the height of the top flange (22), and the manual drive groove (24) adopts a regular polygonal structure.

5. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 4, characterized in that, The connecting nut (4) includes: The connecting nut body (41) has a through hole for installing the supporting nut body (21) and the outer side surface of the connecting nut body (41) is provided with knurling (43). The top flange (42) of the connecting nut is integrally set on the top of the connecting nut body (41) and extends horizontally outward. The outer diameter of the top flange (42) of the connecting nut is larger than the inner diameter of the buckle (3) but not larger than the outer diameter of the buckle body (31).

6. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 5, characterized in that, The buckle (3) includes: The buckle body (31) has a through hole for interference fit connection nut body (41) inside; A stop structure (32) is installed on the outside of the buckle body (31) and protrudes upward, with the top of the stop structure (32) being higher than the buckle body (31). The latch (33) is integrally disposed on both sides of the latch body (31) and extends downward. The latch (33) has a J-shaped structure facing outward.

7. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 6, characterized in that, The metal nut clip (5) includes a V-shaped buckle structure (51) and a bayonet (54) for mounting a mating buckle (3) on the V-shaped buckle structure (51). The V-shaped buckle structure (51) is formed by stamping and bending of sheet metal, including an upper structure (52) and a lower structure (53). In the free state, the included angle of the connecting end is greater than the included angle of the opening end, and the opening end is introduced into the lower body sheet metal (7). The upper structure (52) has an upper through hole (55), and the lower structure (53) has a threaded hole (56) extending downward. After the V-shaped buckle structure (51) buckles the lower body sheet metal (7), the upper through hole (55) and the threaded hole (56) are coaxially arranged.

8. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 7, characterized in that, The upper structure (52) has a snap-fit ​​connection end (57) integrally provided on both sides of the lower body sheet metal (7) in the direction of introduction. The snap-fit ​​connection end (57) has a snap-fit ​​opening (54) for the mating snap-fit ​​foot (33).

9. The manual / automatic integrated connection fastening and adjustment component and its connection structure according to claim 8, characterized in that, The lower structure (53) is located on one side of the opening end and is inclined downward in an arc shape, and is provided with anti-detachment holes (58).

10. A connection structure employing the manual / automatic integrated fastening and adjusting component as described in any one of claims 1-9, characterized in that, Includes manual / automatic connection fastening adjustment parts and their connection structure, upper body sheet metal (9), lower body sheet metal (7) and locking bolts (6); The upper body sheet metal (9) is abutted by the top of the support nut (2); The lower body sheet metal (7) is clamped in the metal nut clamp (5); The locking bolt (6) passes through the upper body sheet metal (9) and is inserted into the lower body sheet metal (7). Under the action of the friction element (1), the manual-automatic connection fastening adjustment component and its connection structure are rotated to adjust the distance between the upper body sheet metal (9) and the lower body sheet metal (7). The lower body sheet metal (7) is provided with a guide strip (10) corresponding to the lower structure (53).

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