Automatic positioning fasteners

Abstract

This invention is an automatic positioning fastener, comprising a sleeve, a positioning component, a rotary positioning component, an elastic component, and a driving sleeve. It achieves pre-compression and elastic positioning functions through the cooperation between the positioning component and the rotary positioning component, and through the elastic component. With the operation of the lever part of the driving sleeve, it can complete the functions of automatic alignment, quick locking and release. Its structure can be used for repeated assembly and stable connection between two preset plates, and has the advantages of tool-free and quick assembly and disassembly. It is suitable for various applications that require quick assembly and positioning.

Claims

1. An automatic positioning fastener, comprising a sleeve, a positioning component, a rotary positioning element, an elastic element, and a driving sleeve, wherein: The main body of the sleeve has an internal longitudinal through hole, and the bottom of the main body has a protruding positioning protrusion. 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 the positioning post 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 the bottom of the positioning post has a recessed receiving space connected to the through hole. The outer wall of the bottom of the positioning post has a protruding locking part, and at least one locking flange corresponding to the position of the at least one limiting part is protruding 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 the positioning cap has a longitudinal through assembly hole inside. The rod of the snap-lock positioning component passes through the through hole of the positioning post, and the bottom of the rod extends into a positioning part. The elastic element is sleeved on the rod of the snap-lock positioning member and located in the receiving space of the positioning column. The drive sleeve has a hollow assembly space for positioning the positioning column. At least one positioning protrusion corresponding to the sliding groove is protruding inward from the bottom side of the drive sleeve. 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 snap-lock 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 snap-lock 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, wherein a riveting portion is formed around the periphery of the positioning protrusion of the sleeve.

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

4. The automatic positioning fastener as described in claim 1, wherein the positioning block protruding from the bottom of the rod of the screw-on positioning member 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, wherein the top of the rod of the screw-on positioning member is provided with a mating 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 mating part.

6. The automatic positioning fastener as described in claim 1, wherein the lever portion 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, wherein the top of the drive sleeve is provided with a connecting hole for positioning the positioning cap.

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

9. The automatic positioning fastener as described in claim 1, 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.

10. The automatic positioning fastener as described in claim 2, wherein after the positioning protrusion of the sleeve is assembled to the preset first fastener, a gasket is further assembled around the periphery of the riveting portion of the first plate of the preset first fastener, and a through hole for the positioning portion to pass through is provided in the center of the gasket, and a gap is formed between the first plate and the gasket to effectively compensate for positioning errors.

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