A connector includes, an elongate web member, a pair of first and second elongate members extending outward from an end of the web member at a first angle relative to each other to form a V-shape, and a pair of third and fourth elongate members extending outward from an opposite end of the web member at a second angle relative to each other to form a V-shape. The first and second elongate members each have a respective longitudinal free end, and the third and fourth elongate members each have a respective longitudinal free end. The first and second elongate members are slidably engaged with respective receiving slots in a first element, and the third and fourth elongate members are slidably engaged with receiving slots in a second element to join the first and second elements together.

The present invention provides a connection system for removably connecting first and second pieces one to another. The connection system comprises: a tapering recess formed in, or connected to, the first piece. The tapering recess has an opening which is shaped and dimensioned to receive a wedge formed in, or connected to, the second piece. The wedge has a dovetail profile which is adapted to engage with walls of the recess.

The wedge is shaped and dimensioned to slide in a first direction and thereby wedge into the tapered recess. Each piece has at least one aperture which receives a lock piece. The first and second pieces when connected and which when oriented in a user preferred direction, cause the lock piece to fall from a first aperture into a second aperture, thereby locking the wedge in the tapering recess and preventing movement in an opposite sliding direction.

Tenon-joints-attached Frames for Aluminum Furniture has features that include the male tenon and the female tenon which once fixed together and assembled to Aluminum Furniture Frame 1 and Aluminum Furniture Frame 2 in order. Once assembled, the male tenon and the female tenon will hide inside the grooves aforementioned where the male tenon which is characterized by a wide area and a rectangular body works by being inserted into Aluminum Furniture Frame 1 to fix them together. Next to the wide area is constructed a narrow area that is characterized by being a sheet that is perpendicular to the wide area. The walls of the narrow area will have at least one extrusion that works by inserting the extrusions into the intrusions of the female tenon. The female tenon, which is characterized by a rectangular body, works by being inserted into Aluminum Furniture Frame 2 to fix them together. One position on the rectangular body will have at least one intrusion to facilitate the fitting with the extrusions from the male tenon wherein the male tenon and the female tenon will be fixed together in a vertical direction.

A demountable assembly structure includes a first body, second body, and engaging component. The first body has a first sliding surface and a slide switch recess positioned proximate to the first sliding surface. The second body has a second sliding surface and an engaging channel positioned proximate to the second sliding surface. The engaging channel is opposite the slide switch recess. The engaging component has a slide switch and a resilient element. The resilient element has a basal portion fixedly disposed in the slide switch recess and a resilient engaging arm extended from the basal portion to the engaging channel and engaged inside the engaging channel. The resilient engaging arm has a guide surface opposite the engaging channel. When the first sliding surface slides onto the second sliding surface, the resilient engaging arm gets engaged inside the engaging channel by having the guide surface slid along the engaging channel.

The present subject matter discloses a board coupling structure with a first board and a second board. The first board and the second board are respectively formed with strip-shaped ribs and strip-shaped grooves that can be interlocked with each other. The strip-shaped rib can comprise at least one longitudinally extending arm and one or more transversely extending arms. In particular, the one or more spaced apart transversely extending arms can increase the contact surface of the strip-shaped rib and the strip-shaped groove. Moreover, the connected boards do not need connectors. In addition, the board coupling structure can have a wide range of applications with a particular use in connecting two adjacent boards of a box.

A method of manufacturing a heat exchanger. The method includes additively manufacturing a first body with a first plurality of passages extending through the first body. Additively manufacturing a second body with a second plurality of passages extending through the second body. The method also includes, interlocking the first body with the second body such that the first plurality of passages is aligned with the second plurality of passages and fluidically connected with the second plurality of passages.

An anchor assembly for wall installation includes a toggle body that is elongated along an axis, and a strap connected to and extending from the toggle body, wherein the strap includes a main segment that extends in a first direction away from an axis of the toggle body when the strap and toggle body are in an unstressed state, and the main segment is bendable down toward the toggle body such that the main segment extends in a second direction, where the second direction runs more closely to parallel with the axis than does the first direction. A locking sleeve mounted for movement along the strap toward the toggle body. The strap is substantially L-shaped and includes a small segment extending laterally relative to the main segment, wherein the small segment is seated within a recess on the toggle body.

A mounting structure of two resin components includes a primary component including an insertion piece extendedly provided from a base portion, and an engagement recessed portion formed in the insertion piece; and a secondary component formed capable of being mounted to the primary component and including an insertion portion configured to guide the insertion piece formed at the base portion, an engagement protruding portion formed in the insertion portion and configured to fit into the engagement recessed portion of the insertion piece, and a restriction wall configured to cover a root side of the insertion piece inserted into the insertion portion, and in a top plan view, a width of the restriction wall being gradually decreased toward a direction separating from a side where the primary component is mounted.

A single dovetail tenon joint mechanism has a first panel and a second panel; the first panel is provided with a single dovetail tenon groove; the cross-section of the single dovetail tenon groove is a right-angled trapezoid; the right-angle sides of the right-angled trapezoid are near the edge side of the first panel; the long base of the right-angled trapezoid is located at the deepest part of the single dovetail tenon groove; one end of the second panel is provided with a single dovetail tenon that matches the single dovetail tenon groove. The single dovetail tenon is wedged into the single dovetail tenon groove for attachment therewith. During installation, a single dovetail tenon can be inserted from one end of the single dovetail tenon groove, thereby attaching the first panel to the second panel.

A device which can slide up and down on a chain or cable, can be loosened to attach to the chain or cable, but does not have any parts that come free when the part is loosened. The device includes first and second pieces, each made of structural material, the first and second pieces fitting together at concave and convex surfaces, to form an interlock forms inner surfaces with a through hole of a first shape that can slide along either a cable or a chain.