50results about How to "Achieve pre-fixation" patented technology

The invention relates to the field of scaffold fasteners and particularly relates to a scaffold steel tube spatial assembling fastener and a sliding sleeve thereof. The fastener comprises the sliding sleeve, two sets of pressing assemblies are arranged on the outer sides of the sliding sleeve, each pressing assembly comprises hinge bases oppositely distributed on the sliding sleeve along the axial direction of the sliding sleeve, the hinge axes of the two hinge bases are parallel and spatially and perpendicularly crossed with a central line of the sliding sleeve, a containing opening for containing scaffold steel tubes is enclosed between the upper portions of the two hinge bases, an expansion block installation groove is enclosed between the lower portions of the two hinge bases, an opening is arranged between the two hinge bases on the wall of the sliding sleeve, a pressing slider is assembled in the opening, an expansion slider for being firmly wedged between the scaffold steel tubes and the pressing slider in the containing opening is assembled in the expansion block installation groove, and the hinge bases of the two sets of pressing assemblies are spatially and perpendicularly crossed. The scaffold steel tube spatial assembling fastener has the advantages of being convenient to operate, reliable to fix and not apt to lose and can simultaneously fix three spatially crossed scaffold steel tubes.

The invention relates to a hose connecting device (1) for connecting at least one hose, comprising at least, one hollow connecting section (2, 2') which has a fluid flow opening (20) in its interior and is sized and shaped so that a hose is directly attachable on the connecting section (2, 2') from the outside, wherein at least one sealing element (30, 31, 32, 30', 31', 32') is arranged on the connecting section (2).

The invention relates to the field of buildings, and discloses a prefabricated stair structure which comprises beams and a stair. The stair comprises step parts and fixing parts at the two ends of thestair parts. The beams are supported at the lower ends of the fixing parts. Supporting rollers are arranged in the beams. The rotating axes of the supporting rollers extend in the length direction ofthe beams. The upper ends of the supporting rollers abut against the lower ends of the fixing parts. The lower ends of the fixing parts are provided with positioning grooves where the supporting rollers are embedded. The positioning grooves extend in the length direction of the fixing parts. Inserting pipes for inserting reinforcing steel bars are embedded in the fixing parts and the beams. Whenthe supporting rollers are embedded in the positioning grooves, the inserting pipes on the fixing parts are aligned with the inserting pipes on the beams. The stair is driven by the supporting rollersto move, and the aim of pre-fixing and installing the stair on the beams is conveniently realized.

The invention discloses a heating table for seamless bonding of underwear, which comprises a machine body with a table top, a hollow opening penetrating up and down on the table top, and a heat insulation board is detachably installed in the hollow opening. A hollow groove having the same shape as the cut piece to be heated is provided on the heat insulating plate, and a heating device is also provided below the hollow opening. The invention uses a hollow groove with the same shape as the cut piece to be heated for positioning, and the positioning is accurate and fast; the cut piece to be heated in the hollow groove is heated by a heating plate without manual ironing, which reduces labor intensity and greatly improves production efficiency.

The invention relates to scaffold fasteners, in particular to a wedge-caulking type cross fastener and a sliding sleeve thereof. The wedge-caulking type cross fastener comprises the sliding sleeve capable of being sleeved on a scaffold base pipe in sliding mode. Two hinged supports for assembling a pressing cover and a hasp in hinged mode respectively are arranged on one side of the sliding sleeve. The two hinged supports are arranged oppositely along the axial direction of the sliding sleeve, the upper portions of the two hinged supports define an accommodating port for containing a scaffold cross pipe, and the lower portions of the two hinged supports define an expansion block installing groove. An opening penetrating through the inside and the outside is arranged at a position between the two hinged supports on a sleeve wall of the sliding sleeve. A pressing sliding block for pressing the scaffold base pipe is arranged in the opening, and an expansion sliding block for being wedged between the scaffold cross pipe and the pressing sliding block is assembled in the expansion block installing groove. During use of the fastener, only one pressing cover is required to be operated, then the expansion sliding block is knocked, operation is convenient and fast, and convenience of operation of the fastener is improved. The safety and operation convenience of the cross fastener are further improved.

The invention discloses a household electrical appliance. The household electrical appliance comprises storage parts (R1, D1) with openings, and a door used for closing the openings, wherein the storage parts (R1, D1) and the door are connected through a hinge unit (H); the hinge unit (H) comprises a hinge shaft (41); the door comprises a door frame (20), the door frame (20) comprises a pair of frame strips (201) which extend in the width direction and the length direction of the door correspondingly and corner connecting pieces (202) used for connecting the pair of frame strips (201); and thehinge shaft (41) is fixed on one of the corner connecting pieces (202), or one of the corner connecting pieces (202) is internally provided with a shaft hole (51) which extends in the axial directionof the hinge shaft (41) so as to receive the hinge shaft (41). In the scheme, the corner connecting pieces do not only have a connecting function for connecting the frame strips, and can also meet more complex installation requirements.

The invention relates to an adjusting device for adjustably securing at least two orthotic components (1, 2) to each other, comprising a first holder (10) which has a first fastening element (31) forsecuring a first orthotic component (1), and a second holder (20) which has a second fastening element (32) for securing to a second orthotic component (2), the holders (10, 20) being mounted such that they can be moved in relation to each other and secured to each other in at least two orientations.

The invention discloses a frame for a table. The frame for the table comprises a long rod and a wide rod; the long rod and the wide rod are spliced into a frame; the long rod comprises a first long rod and a second long rod; a sliding groove is formed in the first long rod; a sliding block is arranged on the second long rod; the sliding groove is provided with an annular groove; the internal partof the annular groove is rotatably connected with a rotating block; an embedding groove is formed in the rotating block; a plurality of first clamping grooves are formed in the sliding groove; a firstmounting groove is formed in the sliding block; a first marble is arranged in the first mounting groove; a first reset mechanism is arranged on the first marble; a second marble is arranged on a rotating block; a second clamping groove is formed in the inner wall of the annular groove; a second reset mechanism is arranged in a conducting groove; after the sliding block enters the embedding groove, the first marble abuts against the second marble through the conducting groove; an inserting column and a wide rod second fixing mechanism are arranged on the wide rod; so that the shape of the whole frame can be adjusted to adapt to table plates with different shapes.