30results about How to "Avoid Soldered Connections" patented technology

The invention discloses a demountable support device and an assembling method thereof. The demountable support device comprises an embedded part, a support and a connecting device. The embedded part comprises an anchor jaw and a U-shaped steel plate, the anchor jaw is welded to the back face of the U-shaped steel plate, and the support is connected to the concave face of the U-shaped steel plate through the connecting device. The connecting device comprises a connecting plate and a plurality of connecting units. The support is fixed to the connecting plate, and the connecting plate is connected to the concave face of the U-shaped steel plate through the connecting units. According to the support device, the support is mechanically connected with the embedded part, construction can be carried out by common operation workers at the same time, construction efficiency and construction quality are greatly improved compared with traditional welded connection, and the construction period of a project is greatly shortened.

in particular a low height small-sized high power AC, DC electromagnetic relay with a plurality of contacts by utilizing a press-button arrangement, wherein a seesaw structure press-button mechanism is arranged on the top of the outer casing, one end will move forward and backward through the press-button, the other end of the press-button will drive the moving reed row of the relay, thus realizing the contact conversion. The moving reed lead-out sheets are also linked into lead-out row through the insulation member, and are connected through rivet compression, the press-button is mounted on the side surface of the outer casing, a support rotation shaft is arranged at the center of the press-button.

The invention belongs to the field of fan blade of turbofan engine, relating to an aeroengine hollow fan blade. The blade is a combined structure composed of a blade main body and a local panel, the blade main body comprises a blade body and a complete tenon, one side of the blade body is provided with a groove at the center, the edge of the blade body is solid, the local panel is a curved flat plate corresponding to the shape of the groove area of the blade main body, and the ribs of the groove on the blade body of the blade main body and the edge of the groove area are welded with the localpanel to form the hollow blade. Compared with the conventional titanium alloy hollow fan blade manufacturing scheme, the invention has the outstanding advantage of simple manufacturing process, and the blade use safety is also effectively improved. Compared with solid blade, the weight of the blade of the invention is obviously reduced.

The invention relates to the technical field of sensors, in particular to a pressure and temperature sensor for oil. The sensor comprises a ceramic pressure module provided with a signal processing chip, the ceramic pressure module is connected with upper pins, part of the upper pins are connected with lower pins through springs, and the lower pins are connected with a thermistor; the thermistor, the lower pin and part of the spring are packaged through an NTC base. The upper pin and part of the spring are arranged in a sleeved mode through a connector. The NTC base can be buckled with the connector to form a cavity capable of positioning the ceramic pressure module; and a part of the NTC base and a part of the connector are sleeved through the shell to form protection. The device is simple and reliable in structure and production process, is convenient to assemble, does not generate any influence on electronic components, and solves the problems that the sensor is complex in assembly process and has high requirements on assembly equipment.

The invention relates to a turbomachine (1) having a bearing housing (30), a shaft (40', 40") rotatably supported in an inner chamber (31) of the bearing housing (30), through a weld (S' , S") is materially connected to the longitudinal end (41', 41 ") of the shaft (40', 40") and is arranged in the working impeller chamber (22) outside the inner chamber (31) ( 25', 25") and a seal (50), which is arranged on the circumference of the shaft (40', 40"), thereby sealing the inner chamber (31) relative to the working impeller chamber (22), wherein the seal For sealing, it cooperates with two mutually oppositely rotating sealing surfaces (51', 52'; 51", 52"). The object of the present invention is to provide a turbomachine in which undesired loosening of the welded connection between the impeller wheel and the shaft is reliably prevented. This is achieved in that the sealing surface material of at least one of the two sealing surfaces forms an insulating layer (T', T") arranged between the seal and the impeller.

The invention relates to a profiled brace (1), in particular for a motor vehicle, comprising a top chord (2); a bottom chord (3); two mutually spaced lateral walls (4, 5) which together with the top chord (2) and the bottom chord (3) delimit an interior (6); two profiled ends (7, 16); and an end piece (8A, 8B) which is arranged in each profiled end (7, 16), the end pieces being connected together by means of a connecting web (18), wherein the end face (9, 10) of each end piece (8A, 8B) rests against adjacent inner wall regions (11 and 12) of the bottom chord (3) and the top chord (2), respectively, and an intermediate region (17) which is designed as a tunnel that is introduced into the bottom chord (3) is formed between the profiled ends (7, 16).

The invention discloses an electrochemical reactor and a method for processing the organic pollutant in water. The electrochemical reactor comprises a direct-current power supply, an electrolytic bath and an electrode assembly arranged in the electrolytic bath. The electrochemical reactor is characterized in that the electrode assembly mainly comprises an electrode stand, a cathode plate and an anode plate, wherein the electrode stand and the electrolytic bath are in a split structure; the electrode stand comprises two insulated side walls, a cathode conducting bar and an anode conducting bar; the cathode conducting bar and the anode conducting bar are respectively fixed on the bottoms of the inner sides of the two side walls; the opposite inner sides of the two side walls are respectively provided with longitudinal grooves; the cathode plate and the anode plate are inserted in the groove between the two side walls and are arranged at an interval; the lower end of the cathode plate is in contacted connection with the cathode conducting bar; the lower end of the anode plate is in contacted connection with the anode conducting bar; the cathode conducting bar is electrically connected with the cathode of the direct-current power supply; and the anode conducting bar is electrically connected with the anode of the direct-current power supply. The electrochemical reactor disclosed by the invention has the advantages that energy consumption is less, electrocatalytic oxidation effect is good, the electrode is easy to install, and the subsequent electrode and the subsequent electrolytic bath are easy to clean.

The invention relates to a low height small-sized high power AC, DC electromagnetic relay with a plurality of contacts and winding shaft pushing mechanism, wherein at least a group of moving reeds of the contact system are linked into moving reed row through an insulation member, the insulation member is provided with a rotation shaft on the two ends, a corresponding shaft hole is arranged on the pushing block, thus forming a hinge connection and pushing the rotation shaft hole on the block to be fastened on the boss of the armature, the movement of the armature drives the moving contact portion of the relay for actuation through the pushing block transmission action. The invention realizes lowered relay height, high electric distance, creepage distance, penetration insulating distance and dielectric pressure resistance.

A pressure guiding module mounted in a flute-shaped pipe comprises a base, a pipe sleeve, a coating nut and a hollow straight joint, wherein the base has a joint surface which is matched with the outer surface of the flute-shaped pipe, is provided with a second through hole, and is fixed on the flute-shaped pipe in a non-welding manner, so that the joint surface is bonded with the outer surface of the flute-shaped pipe in an air sealing manner and the second through hole is aligned to a first through hole; one end of the pipe sleeve is fixedly connected with a pressure guiding pipe which is connected to a pressure sensor, and the other end of the pipe sleeve is provided with a joint part which is outwards projected in the radial direction; the side wall of the coating nut is provided with an internal thread at a first end, and a second end of the coating nut is provided with an end wall, inwards extending in the radial direction, for sleeving the joint part of the pipe sleeve in an accommodating cavity; the accommodating cavity is formed by side walls and the end wall; and the hollow straight joint is provided with a first end which is in threaded connection with the second through hole of the base, and a second end which is in threaded connection with the internal thread of the coating nut. As a result, the pressure guiding pipe guides hot gas pressure at the tail end of the flute-shaped pipe to the pressure sensor to measure the hot gas pressure so as to verify pressure drop and flow distribution of the flute-shaped pipe.