Abstract:
A packaging structure for assembling to a printed circuit board (PCB) comprises a captive screw having a screw head, a threaded shank and a sleeve; and a fixture pressing against the screw head for a part of the threaded shank to expose from a distal end of the sleeve, and clamping the fixture on the sleeve.
Abstract:
A quick assembly apparatus includes a fastening unit, a control unit and an elasticity unit. The fastening unit includes a head section and a fastening section, a through channel connecting the head section and the fastening section, and a notch at the fastening section to form a plurality of elastic fastening elements. The control unit is movably inserted in the through channel, includes a supporting section supporting the elastic fastening elements, a control shaft connected with the supporting section and extending out from the fastening section, and an extension shaft connected with the supporting section and extending towards the head section. The elasticity unit is fitted around the extension shaft of the control unit, and has its one end pushed against the control unit and its another end pushed against the fastening unit. Accordingly, the quick assembly apparatus is capable of quickly and steadily assembling two plates.
Abstract:
A floating fastener for mounting to a first object and then fastening into a second object includes a fastening main body having, from top to bottom, sequentially connected handling portion, shank portion and fastening portion; a cap portion having a connecting section connected to the handling portion and a first stop section extended into the cap portion; and a sleeve movably located around the shank portion and having a second stop section movably interfering with the first stop section for the sleeve and the cap portion to movably connect together without separating from each other, a floating displacement limiting section located below the second stop section and horizontally abutted on the first stop section for preventing the sleeve from swaying, and a fixing section formed around a lower end of the sleeve. The floating fastener can possess a degree of floating displacement without having a swaying or inclined sleeve.
Abstract:
A packaging structure for assembling to a printed circuit board (PCB) comprises a captive screw having a screw head, a threaded shank and a sleeve; and a fixture pressing against the screw head for a part of the threaded shank to expose from a distal end of the sleeve, and clamping the fixture on the sleeve.
Abstract:
A quick assembly apparatus includes a fastening unit, a control unit and an elasticity unit. The fastening unit includes a head section and a fastening section, a through channel connecting the head section and the fastening section, and a notch at the fastening section to form a plurality of elastic fastening elements. The control unit is movably inserted in the through channel, includes a supporting section supporting the elastic fastening elements, a control shaft connected with the supporting section and extending out from the fastening section, and an extension shaft connected with the supporting section and extending towards the head section. The elasticity unit is fitted around the extension shaft of the control unit, and has its one end pushed against the control unit and its another end pushed against the fastening unit. Accordingly, the quick assembly apparatus is capable of quickly and steadily assembling two plates.
Abstract:
A packaging method for assembling a captive screw to a printed circuit board (PCB) includes the steps of providing a captive screw having a screw head, a threaded shank and a sleeve; pressing a fixture toward the screw head for a part of the threaded shank to exposed from a distal end of the sleeve, and then clamping the fixture on the sleeve; providing a PCB having through holes and a layer of solder provided thereon; using a tool to pick up the fixture and the captive screw and align the threaded shank with one through hole on the PCB; releasing the fixture and the captive screw from the tool for a flange at the distal end of the sleeve to extend into the through hole; heating, melting and then cooling to harden the solder layer, so that the sleeve is fixedly held to the PCB; and removing the fixture.
Abstract:
A method for assembling captive screw includes the steps of providing an annular base and positioning an annular washer on a top of the annular base; providing a screw, a coil spring, and a sleeve; downward passing the screw through the coil spring and a top opening of the sleeve; and threading a threaded section of the screw through the annular washer, so that the annular washer is fitted around a shank of the screw to locate below the top opening of the sleeve and above the threaded section of the screw. An inner circumferential edge of the annular washer is not worn away by the threaded section of the screw threaded therethrough, enabling the annular washer to keep a small inner diameter for tightly fitting around the shank of the screw and ensuring reliable assembling of the sleeve to the screw.
Abstract:
An improved lock device includes: a ferrule having a through hole disposed at the center of the ferrule, and a groove disposed around the external periphery of the through hole; a locking unit having a force exerted portion and a screw rod that passes through the through hole; a resilient element sheathed onto the screw rod, and an end of the resilient element being disposed in a groove around the ferrule, and another end of the resilient element pressing against a surface of the force exerted portion; and a knob fixed onto the force exerted portion and movably coupled to the ferrule. Therefore, the resilient element can be fixed between the ferrule and the locking unit, and covered with the knob for preventing the resilient element from being damaged by external forces or tilted by external objects to achieve a better stability of using the resilient element.
Abstract:
A fluid conduit structure includes a first conduit, a second conduit, a first blocking body, and a second blocking body. The first conduit and the second conduit include a first body portion and a second body portion extending along a conduction direction. The first blocking body is movably assembled to the first body portion and is used to close the first conduit. The second blocking body is provided in the second body portion and is used to close the second conduit. The second blocking body is used to enter the first body portion to push against the first blocking body, and when the second blocking body pushes against the first blocking body, the first blocking body and the second blocking body open the first conduit and the second conduit to generate a flow line in the first body part.