Self-positioning fastener

Abstract

The utility model provides a kind of automatic positioning fastener, it includes a sleeve, a positioning assembly, a screwing fastening positioning piece, a elastic member and a driving sleeve body, it is by the cooperation between the positioning assembly and the screwing fastening positioning piece, and realizes pre-pressing and elastic positioning function by elastic member, again cooperate the operation of the driving sleeve body prying department, automatic alignment, quick locking and release function can be completed, its structure can be used for the repeated assembly and stable connection between two preset plate members, and have the advantages such as tool-free, quick disassembly, suitable for various purposes needing quick assembly and positioning.

Description

Technical Field

[0001] This utility model relates to an automatic positioning fastener, and more particularly to an automatic positioning fastener with functions of rotary locking, automatic alignment and quick disassembly and assembly. It is used for a stable connection between two sets of plates or components, and has the advantages of tool-free and quick disassembly and assembly, and is suitable for occasions that require frequent disassembly and installation. Background Technology

[0002] Existing fastener structures commonly include bolt and nut fastening, spring clip fastening, and rivet fixing. While traditional screw or rivet types provide good fixing effects, they generally have the following drawbacks: they require tools for locking and disassembly, making construction inconvenient, and they are prone to wear and tear after repeated disassembly and assembly. If the alignment is not precise during installation, misalignment or loosening can occur, affecting the overall structural stability. Although spring clip fastening types have the characteristics of quick assembly, they are usually only suitable for light-load structures, and their positioning accuracy and durability are insufficient, making them unsuitable for industrial applications that require high stability and repeated disassembly and assembly.

[0003] In addition, although some existing structures are designed with simple positioning mechanisms, they still require users to make precise adjustments manually, making it difficult to achieve true automatic positioning and locking effects. Traditional fastener structures are clearly insufficient for applications requiring rapid assembly, high positioning accuracy, and repeated use.

[0004] Therefore, it is necessary to propose an automatic positioning fastener with a simplified structure, automatic positioning capability, and a rotary locking function to address the various shortcomings of existing technologies. This is the key area that those engaged in this industry urgently need to research and improve. Utility Model Content

[0005] Therefore, in view of the above-mentioned problems and deficiencies, the main purpose of this utility model is to provide an automatic positioning fastener.

[0006] This utility model provides an automatic positioning fastener, comprising a sleeve, a positioning component, a rotary positioning component, an elastic element, and a driving sleeve, characterized in that:

[0007] The sleeve has a through hole that runs longitudinally through it, and a protruding positioning protrusion is provided at the bottom of the sleeve.

[0008] The positioning component has a positioning post and a positioning cap. The positioning post is inserted into the through hole of the main body and has a longitudinal through hole inside. At least one limiting part extends from at least one side of the top surface of the positioning post, and a receiving space connected to the through hole is recessed at the bottom of the positioning post. A protruding locking part is provided on the outer wall of the bottom of the positioning post, and at least one locking flange corresponding to the position of the at least one limiting part is protruded from at least one side of the locking part. A locking space is formed between the at least one locking flange and the at least one limiting part. A sliding groove is formed on both sides of the at least one locking flange. The positioning cap is disposed inside the drive sleeve and has a longitudinal through assembly hole inside the positioning cap.

[0009] The rod of the swivel positioning component passes through the through hole of the positioning post, and a positioning part extends from the bottom of the rod.

[0010] The elastic element is fitted onto the rod of the snap-lock positioning element and is located within the accommodating space of the positioning column;

[0011] The drive sleeve has a hollow assembly space inside for positioning the positioning post. At least one positioning protrusion corresponding to the sliding groove is protruding inward from the bottom side of the drive sleeve, and at least one limiting groove corresponding to at least one limiting part is recessed on the bottom side of the drive sleeve. The locking space and the sliding groove are connected so that the at least one positioning protrusion moves between the locking space and the sliding groove as the drive sleeve moves outward or inward. When the swivel positioning member locks between a preset first fastener and a preset second fastener, the at least one positioning protrusion slides to the locking space to lock. When the swivel positioning member releases, the at least one positioning protrusion slides back to the sliding groove.

[0012] The automatic positioning fastener wherein a riveting portion is formed around the periphery of the positioning protrusion of the sleeve.

[0013] The automatic positioning fastener, wherein: a first positioning hole is provided on the top surface of the accommodating space of the positioning column; the top of the positioning block protruding from the bottom of the rod of the screw-on positioning member is formed with a bearing surface corresponding to the top surface, and a second positioning hole is provided on at least one side of the bearing surface; a pushing surface is formed on the other side of the bearing surface of the positioning block; a first fixing end extends from the top of the elastic member into the first positioning hole at the bottom of the positioning column for positioning; and a second fixing end extends from the bottom of the elastic member into the second positioning hole at the bottom of the positioning block for positioning.

[0014] The automatic positioning fastener, wherein: the positioning block protruding from the bottom of the rod of the screw positioning fastener is housed in the accommodating space at the bottom of the positioning column, and a stop block extends from each side of the positioning portion extending from the bottom of the positioning block, and a stop surface is formed on the top of the stop block.

[0015] The automatic positioning fastener, wherein: the top of the rod of the screw-on positioning fastener is provided with a docking part that extends into the assembly hole of the positioning cap for assembly, and a positioning tooth row is provided around the outer wall of the docking part.

[0016] The automatic positioning fastener wherein: the lever part formed on one side of the drive sleeve is provided with anti-slip structures on both sides.

[0017] The automatic positioning fastener wherein: the top of the drive sleeve is provided with a connecting hole for positioning the positioning cap.

[0018] The automatic positioning fastener, wherein: the outer surface of the locking part of the positioning column is surrounded by an anti-slip toothed section, and the outer wall of the positioning cap is surrounded by a toothed section.

[0019] The automatic positioning fastener, wherein: after the positioning protrusion of the sleeve is assembled with the first plate of the preset first fastener, a gap is formed between the positioning protrusion and the first plate that can effectively compensate for positioning errors.

[0020] The automatic positioning fastener, wherein: after the positioning protrusion of the sleeve is assembled to the preset first fastener, a gasket is also assembled around the periphery of the riveting part of the first plate that passes through the preset first fastener, and a through hole is provided in the center of the gasket for the positioning part to pass through, and a gap is formed between the first plate and the gasket to effectively compensate for positioning errors.

[0021] This invention enables tool-free quick assembly and disassembly. Attached Figure Description

[0022] Figure 1 This is an exploded perspective view of the automatic positioning fastener of this utility model.

[0023] Figure 2 This is an exploded perspective view of the automatic positioning fastener of this utility model.

[0024] Figure 3 This is a schematic diagram of the automatic positioning fastener of this utility model before positioning.

[0025] Figure 4 This is a schematic diagram of the positioning of the automatic positioning fastener of this utility model.

[0026] Figure 5 This is a schematic diagram of the automatic positioning fastener of this utility model after positioning.

[0027] Figure 6 This is a schematic diagram of the rotation action of the automatic positioning fastener of this utility model.

[0028] Figure 7 This is a side sectional view of the automatic positioning fastener of this utility model before it rotates.

[0029] Figure 8 This is a side cross-sectional view of the automatic positioning fastener of this utility model after it has been rotated.

[0030] Explanation of reference numerals in the attached drawings: 1-Sleeve; 11-Main body; 110-Through hole; 111-Positioning protrusion; 1111-Riveting part; 2-Positioning component; 21-Positioning post; 210-Through hole; 2100-Accommodation space; 2101-Top surface; 2102-First positioning hole; 211-Limiting part; 212-Clamping part; 2120-Sliding groove; 2121-Clamping flange; 2122-Clamping space; 2123-Anti-slip toothed row; 22-Positioning cap; 220-Assembly hole; 221-Toothed row part; 3-Hook-lock positioning component; 31-Rod; 311-Positioning block; 3110-Second positioning hole; 3111-Abutting surface; 3112-Pushing Surface; 312-Positioning part; 3121-Stop block; 3122-Stop surface; 32-Mating part; 321-Positioning tooth row; 4-Elastic element; 41-First fixed end; 42-Second fixed end; 5-Drive sleeve; 50-Assembly space; 51-Connecting hole; 52-Positioning protrusion; 53-Limiting groove; 54-Actuating part; 541-Anti-slip structure; 6-Washer; 60-Through hole; 7-Preset first fastener; 71-First plate; 710-First connecting hole; 72-Connecting part; 720-First connecting hole; 73-Preset fastener; 8-Preset second fastener; 80-Second connecting hole; 81-Second plate; 810-Second connecting hole. Detailed Implementation

[0031] Please see Figure 1 , Figure 2 , Figure 7 The figures shown are an exploded perspective view, an exploded perspective view from another angle, and a side sectional view before rotation of the automatic positioning fastener of this utility model. This utility model provides an automatic positioning fastener, mainly comprising a sleeve 1, a positioning component 2, a rotating positioning component 3, an elastic component 4, and a driving sleeve 5. The connection relationships of the aforementioned components are as follows:

[0032] The main body 11 of the sleeve 1 is provided with an internal longitudinal through hole 110, and the bottom of the main body 11 is provided with a protruding positioning protrusion 111, and a riveting part 1111 is formed around the positioning protrusion 111.

[0033] The positioning component 2 has a positioning post 21 and a positioning cap 22. The positioning post 21 passes through the through hole 110 of the main body 11, and the positioning post 21 has a longitudinal through hole 210 inside. At least one limiting part 211 extends from at least one side of the top surface of the positioning post 21, and the bottom of the positioning post 21 has a recessed receiving space 2100 connected to the through hole 210. A first positioning hole 2102 is provided at the top surface 2101 formed at the top of the receiving space 2100. The bottom outer wall of the positioning post 21 has a protruding locking part 212. At least one side of 212 is provided with at least one locking flange 2121 corresponding to the position of at least one limiting part 211, and a locking space 2122 is formed between the at least one locking flange 2121 and the at least one limiting part 211. A sliding groove 2120 is formed on both sides of the at least one locking flange 2121. An anti-slip tooth row 2123 is provided around the outer surface of the locking part 212. The positioning cap 22 is disposed inside the drive sleeve 5, and the positioning cap 22 is provided with a longitudinally penetrating assembly hole 220. A tooth row part 221 is provided around the outer wall surface of the positioning cap 22.

[0034] The rod 31 of the swivel positioning member 3 passes through the through hole 210 of the positioning column 21, and the positioning block 311 protruding from the bottom of the rod 31 is housed in the receiving space 2100 at the bottom of the positioning column 21. The top of the positioning block 311 has a supporting surface 3111 corresponding to the top surface 2101, and a second positioning hole 3110 is provided on at least one side of the supporting surface 3111. The positioning block 311 has a pushing surface 3112 on the other side of the supporting surface 3111. A stop block 3121 extends from each side of the positioning part 312 extending from the bottom of the positioning block 311, and a stop surface 3122 is formed on the top of the stop block 3121. The top of the rod 31 is provided with a docking part 32 that extends into the assembly hole 220 of the positioning cap 22 for assembly, and a positioning tooth row 321 is provided around the outer wall of the docking part 32.

[0035] The elastic element 4 is sleeved on the rod body 31 of the snap-lock positioning element 3 and is located between the positioning block 311 and the positioning column 21. The top of the elastic element 4 extends into the first positioning hole 2102 at the bottom of the positioning column 21 for positioning, and the bottom of the elastic element 4 extends into the second positioning hole 3110 at the bottom of the positioning block 311 for positioning, and the second fixing end 42 extends into the second positioning hole 3110 at the bottom of the positioning block 311 for positioning.

[0036] The drive sleeve 5 has a hollow assembly space 50 for positioning the positioning column 21. The top of the drive sleeve 5 has a connecting hole 51 for positioning the positioning cap 22. The bottom side of the drive sleeve 5 has at least one positioning protrusion 52 corresponding to the sliding groove 2120. The bottom side of the drive sleeve 5 has at least one limiting groove 53 corresponding to at least one limiting part 211. The lever part 54 formed on one side of the drive sleeve 5 has anti-slip structures 541 on both sides.

[0037] Please refer to the following: Figures 3-8 The diagram shows the automatic positioning fastener before positioning, during positioning, after positioning, rotation, and a side sectional view before and after rotation. In practical application, the positioning protrusion 111 at the bottom of the main body 11 is first pressed against the first engagement hole 710 on the first plate 71 of a pre-set first fastener 7. The riveting part 111 then protrudes through the first engagement hole 710. A gasket 6 is further attached around the periphery of the riveting part 1111 protruding from the first plate 71. The gasket 6 has a through hole 60 in the center for the positioning part 312 to pass through and be positioned around the periphery of the riveting part 1111 (see [reference]). Figure 7 , Figure 8 As shown in the diagram, at this time, the preset first fastener 7 is pushed to engage with the preset second fastener 8. The stop block 3121 provided on the positioning part 312 at the bottom of the screw-on positioning member 3, which protrudes from the positioning protrusion 111, abuts against the outer edge of the second engagement hole 810 corresponding to the second plate 81 of the preset second fastener 8 with the force of pushing in. The inclined structure of the outer wall of the stop block 3121, combined with the direction of the pushing force, guides the stop block 3121 to slide into the second engagement hole 810. At this time, the preset first fastener 7 is further pushed so that the pushing surface 3112 on one side of the positioning block 311 abuts against the outer wall surface of the second plate 81. As the pushing force is applied, the elastic element 4 between the positioning block 311 and the positioning post 21 undergoes elastic compression deformation within the accommodating space 2100. Furthermore, with the applied force, at least one positioning protrusion 52 within the driving sleeve 5 is displaced from the sliding groove 2120 into the locking space 2122, thus being positioned between the at least one limiting part 211 and the at least one locking flange 2121. This causes the driving sleeve 5 to automatically retract outwards. Simultaneously, the positioning part 312 of the snap-lock positioning member 3 changes direction as the driving sleeve 5 retracts outwards, causing the stop block 3121 of the positioning part 312 to abut against the wall surface of the second plate 81 (e.g., Figure 5 As shown), this is to achieve the effect of automatically locking the preset first fastener 7 and the preset second fastener 8.

[0038] Furthermore, after the positioning protrusion 111 of the sleeve 1 is assembled with the first plate 71, a gap will be generated between the positioning protrusion 111 and the first plate 71, and a gap will also be formed between the first plate 71 and the gasket 6. This allows for a tolerance design by reserving a gap between the first plate 71 and the positioning protrusion 111 of the sleeve 1. When the first plate 71 is assembled with the second plate 81, the positioning error can be effectively compensated, allowing the snap-lock positioning member 3 to be smoothly inserted and locked onto the second plate 81, thereby improving the tolerance adaptability and structural stability of the overall assembly.

[0039] Furthermore, the aforementioned preset first fastener 7 is aligned with the second connecting hole 80 of the preset second fastener 8 through the first connecting hole 720 of the connecting part 72, and is locked by a preset fastener 73, so as to further tighten the preset first fastener 7 and the preset second fastener 8, thereby facilitating the assembly of the preset first fastener 7 and the preset second fastener 8.

[0040] Furthermore, when the aforementioned preset first fastener 7 and preset second fastener 8 are to be separated, the drive sleeve 5 can be rotated to cause the elastic member 4 to generate an elastic restoring force to push the positioning block 311. The pushing surface 3112 on the other side of the positioning block 311 will be pushed forward by the elastic restoring force to impact the wall of the second plate 81, and then, under the influence of the reaction force of the wall of the second plate 81, the positioning block 311 will be pushed backward, so that the positioning block 311 will separate from the positioning post 21 (e.g., Figure 7 As shown, the pushing force of the pushing surface 3112 promotes the rapid disengagement between the preset first fastener 7 and the preset second fastener 8, so that the user can unlock without tools and easily remove the automatic positioning fastener of this utility model. In this way, the locking state between the preset first fastener 7 and the preset second fastener 8 can be effectively released. The operation is carried out by the elastic force of the elastic member 4 and the locking part 212 of the positioning column 21, so that the driving sleeve 5 can automatically complete the fastening and locking, thereby reducing the time for manual adjustment and reducing the risk of misalignment.

[0041] Therefore, the main feature of this utility model is that the drive sleeve 5 is displaced between the sliding groove 2120 and the locking space 2122 of the positioning column 21 by the at least one positioning protrusion 52, so as to drive the utility model to switch states. The positioning block 311 of the swivel positioning member 3 will also lock or release the states between the preset first fastener 7 and the preset second fastener 8 as the states change.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Therefore, any simple modifications and equivalent structural changes made based on the description and drawings of the present utility model should also be included in the patent scope of the present utility model.

Claims

1. An automatic positioning fastener, comprising a sleeve, a positioning component, a rotary positioning component, an elastic element, and a driving sleeve, characterized in that: The sleeve has a through hole that runs longitudinally through it, and a protruding positioning protrusion is provided at the bottom of the sleeve. The positioning component has a positioning post and a positioning cap. The positioning post is inserted into the through hole of the main body and has a longitudinal through hole inside. At least one limiting part extends from at least one side of the top surface of the positioning post, and a receiving space connected to the through hole is recessed at the bottom of the positioning post. A protruding locking part is provided on the outer wall of the bottom of the positioning post, and at least one locking flange corresponding to the position of the at least one limiting part is protruded from at least one side of the locking part. A locking space is formed between the at least one locking flange and the at least one limiting part. A sliding groove is formed on both sides of the at least one locking flange. The positioning cap is disposed inside the drive sleeve and has a longitudinal through assembly hole inside the positioning cap. The rod of the swivel positioning component passes through the through hole of the positioning post, and a positioning part extends from the bottom of the rod. The elastic element is fitted onto the rod of the snap-lock positioning element and is located within the accommodating space of the positioning column; The drive sleeve has a hollow assembly space inside for positioning the positioning post. At least one positioning protrusion corresponding to the sliding groove is protruding inward from the bottom side of the drive sleeve, and at least one limiting groove corresponding to at least one limiting part is recessed on the bottom side of the drive sleeve. The locking space and the sliding groove are connected so that the at least one positioning protrusion moves between the locking space and the sliding groove as the drive sleeve moves outward or inward. When the swivel positioning member locks between a preset first fastener and a preset second fastener, the at least one positioning protrusion slides to the locking space to lock. When the swivel positioning member releases, the at least one positioning protrusion slides back to the sliding groove.

2. The automatic positioning fastener as described in claim 1, characterized in that: A rivet is formed around the locating protrusion of the sleeve.

3. The automatic positioning fastener as described in claim 1, characterized in that: The top surface of the accommodating space of the positioning column is provided with a first positioning hole, and the top of the positioning block protruding from the bottom of the rod of the screw-on positioning member is provided with a bearing surface corresponding to the top surface, and a second positioning hole is provided on at least one side of the bearing surface. The positioning block is provided with a pushing surface on the other side of the bearing surface. The top of the elastic member extends into the first positioning hole at the bottom of the positioning column for positioning, and the bottom of the elastic member extends into the second positioning hole at the bottom of the positioning block for positioning.

4. The automatic positioning fastener as described in claim 1, characterized in that: The positioning block protruding from the bottom of the rod of the swivel positioning component is housed in the receiving space at the bottom of the positioning column, and a stop block extends from each side of the positioning portion extending from the bottom of the positioning block, and a stop surface is formed on the top of the stop block.

5. The automatic positioning fastener as described in claim 1, characterized in that: The top of the rod of the swivel positioning component is provided with a docking part that extends into the assembly hole of the positioning cap for assembly, and a positioning tooth row is provided around the outer wall of the docking part.

6. The automatic positioning fastener as described in claim 1, characterized in that: The lever part formed on one side of the drive sleeve is provided with anti-slip structures on both sides.

7. The automatic positioning fastener as described in claim 1, characterized in that: The top of the drive sleeve has a connecting hole for positioning the positioning cap.

8. The automatic positioning fastener as described in claim 1, characterized in that: The outer surface of the locking part of the positioning column is surrounded by an anti-slip toothed section, and the outer wall of the positioning cap is surrounded by a toothed section.

9. The automatic positioning fastener as described in claim 1, characterized in that: After the positioning protrusion of the sleeve is assembled with the first plate of the preset first fastener, a gap is formed between the positioning protrusion and the first plate that can effectively compensate for positioning errors.

10. The automatic positioning fastener as described in claim 2, characterized in that: After the positioning protrusion of the sleeve is assembled to the preset first fastener, a washer is also assembled around the riveting part of the first plate that passes through the preset first fastener, and a through hole is provided in the center of the washer for the positioning part to pass through, and a gap is formed between the first plate and the washer to effectively compensate for the positioning error.

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