Positioning device

Abstract

This invention relates to a positioning device, comprising: a base, including a main body and a receiving cavity, the top surface of the main body having a limiting hole and at least one guide plate, and a fixing part having a fixing part on the bottom side of the main body; a fixing member, inserted into the receiving cavity of the base, the fixing member including a head and a positioning rod inserted through the head, an elastic member sleeved outside the head, and the head extending downward to include a neck, a rod body, and a positioning body exposed on the bottom side of the base; a cover having a receiving chamber inside and at least one assembly part formed in the receiving chamber, a receiving groove formed on the inner wall of the receiving chamber for positioning the other end of the elastic member, and at least one guide structure for resisting and positioning when the guide plate of the base rotates, the guide structure including a first positioning wall, a guide arc part, and a second positioning wall, so as to achieve the effect of quick locking and unlocking of the positioning device.

Claims

1. A positioning device, comprising: A base includes a main body with an internal cavity, a limiting hole communicating with the cavity on the top surface of the main body and at least one upwardly extending guide plate, and a fixing portion on the bottom side of the main body; a fixing member passing through the cavity of the base, the fixing member including a head passing through the limiting hole of the base and a positioning rod passing through the head laterally, an elastic member having one end fixed to the top surface of the main body of the base sleeved outside the head, and the head having a neck, a rod body and a positioning body extending downward; and a cover having an internal receiving chamber with at least one assembly portion for receiving and fixing the positioning rod, a receiving groove for positioning the other end of the elastic member formed on the inner wall of the receiving chamber, and at least one guide structure for supporting and positioning the guide plate of the base when it rotates, the guide structure including a first positioning wall, a guide arc portion and a second positioning wall.

2. The positioning device as claimed in claim 1, wherein the fixing part of the base is fixed to the first through hole of the preset first plate by stamping, riveting or welding.

3. The positioning device as claimed in claim 1, wherein the main body and the fixing part of the base have a cut-shaped anti-rotation surface on one side, and a stop edge is formed at the location of the first perforation of the pre-set first plate corresponding to the anti-rotation surface of the fixing part.

4. The positioning device as claimed in claim 1, wherein the main body of the base is provided with two guide plates and the cover has corresponding two guide structures, and an elliptical limiting hole and a positioning hole for the first positioning end of the elastic member to be inserted are formed between the two guide plates.

5. The positioning device as claimed in claim 1, wherein the head and both sides of the rod of the fixing member are cut to form alignment surfaces, the top side of the head is provided with a through groove for the positioning rod to pass through, and the bottom side of the two alignment surfaces of the rod is formed with an outwardly expanding limiting portion, and a neck in the shape of a contracted round rod is provided between the head and the rod.

6. The positioning device as claimed in claim 1, wherein the positioning body of the fixing member includes a connecting portion that is connected to the rod body and is in a contracted shape, a locking block extending to both sides below the connecting portion, and both sides of the connecting portion and the two locking blocks are cut to form longitudinal sections, and a second through hole of a pre-set second plate corresponds to the positioning body to form an elongated rectangular through hole through which the positioning body can pass.

7. The positioning device as claimed in claim 1, wherein the cover is generally pentagonal in shape and has a pointing protrusion at one corner of the pentagon, and an anti-slip structure with alternating ridges and grooves is formed on the two sides of the pointing protrusion.

8. The positioning device as claimed in claim 1, wherein the cover has two assembly parts, each assembly part including a guide slope that tapers towards the bottom from the opening of the receiving chamber, a positioning part with a large slope at the end of the guide slope, a limiting groove for accommodating the positioning rod formed beyond the positioning part, the cover having notches at both ends of the limiting groove to resist the outward stress when the positioning rod passes through, and a circular recessed area in the middle of the limiting groove for the top end of the head of the fixing member to abut.

9. The positioning device as claimed in claim 1, wherein the receiving chamber of the cover is recessed at the corresponding pointing protrusion to form the receiving groove for receiving and positioning the second positioning end of the elastic member.

10. The positioning device as claimed in claim 1, wherein the top surface of the cover is provided with an unlocking direction indicator image including an arrow and an unlocked lock.

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