189results about How to "Ensure close contact" patented technology

The present invention relates to, in part, methods, reagents and apparatuses for the detection of agents. The present invention also relates, in part, to compositions including, but not limited to, flow cells, assay chambers, reagent reservoir delivery units and devices for holding an assay chamber. The present invention also provides various components and combinations of components for various detection apparatuses. The present invention also relates to a portable agent detection apparatus that can be used in the field or at a point of care and is not limited to specialized laboratories or limited to use by highly skilled users.

Disclosed are an efficient electric defrost device for a refrigerator, and a method thereof, belonging to the defrost field. In the device, a compressor, an oil separator, a condenser, a filter and a regenerator are connected in sequence through pipe flanges, and the regenerator is then connected with the compressor through a pipe flange; the regenerator, a solenoid valve, an expansion valve and a coil pipe are connected through pipe thread; the coil pipe is connected with a gas collecting pipe through welding; the gas collecting pipe is connected with the regenerator through a pipe flange; the gas collecting pipe is bound with a temperature controller; fins are inserted in the coil pipe and an electric heating pipe; a return air door is arranged on an enclosure box; a blower, the coil pipe, the fins, the electric heating pipe, the gas collecting pipe, the temperature controller and a temperature bulb B are arranged inside the enclosure box which is connected with a water discharge pipe through thread; and the electric heating pipe, the temperature controller, a controller, a protector and the solenoid valve are electrically connected. The method comprises the following steps: the device jumps off at 8 DEG C and gets resetted at 3 DEG C; the solenoid valve is closed in the refrigeration and defrost delay time, then the blower stops, while the compressor and the condenser start to work; the refrigerant enters into the condenser for cold storage; the return air door is closed; the electric heating pipe is electrified for defrosting in a set defrost time; the water discharge time is set; and the return air door is opened for refrigeration. The device is used for defrosting, which is energy-saving and highly efficient.

The invention belongs to the technical field of in-situ test equipment and relates to a creep test loading device for a non-metal anti-floating anchor. An anchor body is of a solid rod-shaped structure and is bonded with a steel casing pipe. H-shaped steel is perpendicular to a concrete cushion layer and is symmetrically arranged on the two sides of the anchor body. A counterforce beam is a box-type section formed by welding two pieces of H-shaped steel. The counterforce beam is provided with a steel base plate. The steel base plate, a penetrating jack, a spring, a steel plate, an anchor cable axial force meter and an anchorage device are stacked on the counterforce beam and arranged outside the steel casing pipe in a sleeved mode. The anchorage device is welded to the outside of the steel casing pipe. A dial indicator is arranged on L-shaped organic glass in an erecting mode. The L-shaped organic glass is arranged on the interface of the concrete cushion layer and the anchor body. A magnetic indicator base of the dial indicator is arranged on a standard beam arranged on a concrete buttress. The concrete buttress is arranged on the concrete cushion layer. The creep test loading device is simple in overall structure, convenient to install, high in testing precision and high in operability.

The invention relates to a machine-made sand light-expansion high early strength grouting material and a preparation method thereof. The grouting material comprises the following ingredients: 40-55 wt% of machine-made sand, 40-55 wt% of ordinary portland cement, 1-5 wt% of expansion and shrinkage-reducing components, and 1-5 wt% of reinforcing component, wherein, the expansion and shrinkage-reducing component comprises high-alumina cement and anhydrite according to the weight ratio of 0.5 to 1.5 : 1, and the reinforcing component comprises polycarboxylic acid water reducer powder and siliceous dust according to the weight ratio of 0.05 to 0.15 : 1. The grouting material is prepared by carrying out two stage dry mix on the ingredients. According to the invention, the problem of difficult use of machine-made sand with large amount in the grouting material production is solved; the product has the advantages of high early strength, light expansion, no shrinkage and the like; and the preparation method has the advantages of simple process, low cost, and no secondary pollution. The invention can be widely applied for anchoring foundation bolt, embedding steel bar secondary grouting of device, reinforcing the beams, plates, columns and floors of buildings and the like, having a wide application range.

The invention provides a junction device. The junction device comprises a wire holder, a plurality of installing grooves arranged side by side are formed in the wire holder, and springing pieces are arranged in the installing grooves and installed in the installing grooves through fixing assemblies. Each springing piece is provided with an installing part, wherein the installing part can be respectively connected with a circuit breaker body plugged into the corresponding installing groove and a cable terminal. A ridge is formed between every two adjacent installing grooves and provided with a circuit breaker body positioning assembly. Each circuit breaker body positioning assembly comprises a sliding piece and a fixing piece for fixing the positioning assembly to the corresponding ridge, wherein the sliding piece can slide along the ridge so as to be fixedly connected in a plugged mode or separated from the corresponding circuit breaker body. The device solves the technical problems that in the prior art, the operation of connection between a circuit breaker and a cable is complex, and time and labor are wasted, avoids the phenomenon that when installing the circuit breaker, a user uses a large number of screws to connect the circuit breaker and the cable, and is convenient for the user to use.

Infant warming systems are described herein generally comprising a temperature regulation assembly which encloses a phase change material (PCM). The temperature regulation assembly may be initially heated (or re-heated) by water contained within a heating assembly and then placed within a retaining pouch of an infant bedding. The PCM may then provide constant heat over a period of time to the infant. A control / indicator interface coupled to the regulation assembly may constantly monitor the temperature of the PCM as well as the ambient temperature to provide one or more indications or alerts to the user with respect to one of several states of the warming assembly.

The invention relates to an adjustable multipurpose three-phase test set and belongs to the field of testing. The adjustable multipurpose three-phase test set comprises a test bar; the front end of the test bar is provided with a left phase contact probe, a middle phase contact probe and a right contact probe; the left, middle and right phase contact probes are correspondingly connected with three signal input ends of a three-phase tester; the three-phase tester is fixed to a handle of the test bar; two sides of a transverse bar at the front end of the test bar are provided with two rotary spring clamps, respectively; the left and right phase contact probes are fixed to the rotary spring clamps on two sides of the transverse bar, respectively; the middle phase contact probe is fixed to the transverse bar at the front end of the test bar through a spring. A measuring mode wherein three-phase measuring points are in contact at the same time is adopted, an operator contacts a live device fewer times, work is less dangerous for testing staff, interphase short circuit is avoided, the test set is suitable for test objects having different interphase distances, work preparation time is shortened, and testing speed can be increased. The test set is widely applicable to the field of three-phase power signal testing for low-voltage power supply systems.

The invention discloses a printed circuit board test connector. The printed circuit board test connector comprises an inner conductor, an outer conductor and an insulator, wherein the outer conductor is provided with a hollow cavity; the insulator and the inner conductor are arranged in the hollow cavity of the outer conductor; the inner conductor is isolated from the outer conductor by the insulator; the inner conductor comprises a first inner conductor and a second inner conductor which is inserted into the first inner conductor; a spring is nested in the first inner conductor; one end of the spring is resisted against the first inner conductor; and the other end of the spring is resisted against the second inner conductor. The printed circuit board test connector is simple and reliable in structure, and capable of realizing quick insertion and extraction, and connecting stability.