31results about How to "The installation method is firm" patented technology

The invention provides a prefabricated box culvert system. The prefabricated box culvert system comprises at least two prefabricated box culverts. Two prefabricated box culverts are located at the head end and the tail end of the prefabricated box culvert system, the prefabricated box culverts at the head end and the tail end respectively comprise a box body and two connectors, at least one connector of each box culvert comprises a bundle of bars or a pre-buried water stop belt, and the box culverts of the prefabricated box culvert system are connected through bars or the water stop belts formed through overlap welding, and are connected into the integrally-formed box culvert system through poured concrete. The invention further provides an installation method of the prefabricated box culvert system. The installation method is used for connecting the at least two prefabricated box culverts into a whole and laying the box culverts on the bottom face of a road. Compared with the prior art, the prefabricated box culvert system is simple in construction, short in construction period, low in cost, wide in application range, and suitable for municipal engineering and other large-scale traffic construction.

The colored starlit device includes molded body, main body, fiber bundle, light emitter, driving element and rotating color sheet. The driving element is linked with the color sheet, the fiber bundle has tail installed onto the main body and is set on one side of the color sheet opposite to the light emitter, and the molded body has lattices for the fiber heads to be inserted in. The fiber mounting method includes following steps: making the heads of the fibers penetrate through the lattices for certain length; cutting the extended fiber heads tidily; heating the heads for melting to form size larger than the lattices and fix to the lattices. The present invention has high installing efficiency, low production cost and low power consumption, the color sheet can produce color change effect in the fibers, and the fibers are clamped firmly.

A clamp-type cable sheath grounding frame, including several grounding copper bar assemblies fixed on the wall, and its technical gist is: the grounding copper bar assembly includes several grounding copper bar units I and grounding copper bar units with the same structure II, between adjacent grounding copper bar units I or between grounding copper bar units II through bridging copper bars; A number of feet arranged at equal intervals at the bottom, insulating sheets located at both ends of the main body of the copper bar; the same side of the grounding copper bar assembly formed by the grounding copper bar unit I and the grounding copper bar assembly formed by the grounding copper bar unit II are simultaneously connected to the same The main grounding copper bar is fixed, and the grounding copper bar assembly is fixed on the wall through expansion bolts assembled on the insulating sheet. It fundamentally solves the problems of chaotic installation methods, poor uniformity, poor anti-interference performance, and poor resistance consistency of the grounding of the cable shielding layer.

The invention discloses an expansion joint-adjustable dual-waterproof installation construction process, comprising the following process steps of: plastering wall surfaces positioned on the expansion joint; carrying out construction measurement on both sides of the expansion joint; adhering waterstops; installing and fixing an aluminum alloy base; sizing the edges of the aluminum alloy base; embedding rubber strips; assembling and fixing a slide rod and a cover plate; processing the expansion joint, and cleaning an exterior. The invention has the advantages of firm installation, dual waterproofing, large expansion amount and elegant appearance without the raised margins of the cover plate.

The invention relates to a coil cooler arranged in a heating zone. The coil cooler is arranged at one side of the heating zone of a reflow oven and comprises a mounting plate, a stainless steel hose coil, a coil fixing device and a fixing plate, wherein the mounting plate is arranged above the stainless steel hose coil; the coil fixing device is used for fixedly mounting the stainless steel hose coil on a base plate; and the fixing plate is fixed to the side part of the stainless steel hose coil through a fixing screw. Compared with the prior art, the coil cooler arranged in the heating zone is safe and reliable, simple in structure, and convenient to mount and overhaul; therefore, better cooling effect can be achieved.

The invention relates to an airless tire and its production process. The main body of the tire is molded by pouring polyurethane rubber, and the inner support is placed in the main body of the tire; Positioning in the circumferential direction; the hub is made of aluminum alloy, one side of which is a raised edge rib structure, which is used for axial positioning of one side of the tire body, and the other side of the hub is connected by bolts There is a cover plate; the cover plate compresses the main body of the tire to the hub. The production process of the airless tire includes the pouring process of the tire body and the assembly process of the tire body and the wheel hub. In this application, the tire body is integrally molded by polyurethane rubber casting, and the inner support is cast in the tire body. The fully enclosed and wrapped tire body is close to the shape of the existing pneumatic tire, but it is safer and more reliable than the pneumatic tire, with high strength and wear resistance. Good performance, long life, suitable for large-scale automated production and processing.

The invention discloses a clamp-type cable sheath grounding cabinet, comprising a support frame arranged on the ground, a cabinet body and a plurality of grounding copper bars and characterized in that a right-angled edge strip with holes is respectively arranged on four corners in the cabinet body in the height direction, a plurality of fixed plates I and fixed plates II installed in the width direction of the cabinet body are arranged between the adjacent right-angled edge strips, a plurality of transverse copper bars I or transverse copper bars II are arranged perpendicular to the fixed plates I in the width direction of the cabinet body at intervals, the transverse copper bars I or the transverse copper bars II are installed on the fixed plates I through insulators I, longitudinal copper bars I are fixed on the transverse copper bars I, longitudinal copper bars II are fixed on the transverse copper bars II, total leading-out copper bars I are fixed on the longitudinal copper bars I, total leading-out copper bars II are fixed on the longitudinal copper bars II, and the total leading-out copper bars I and the total leading-out copper bars II are supported by insulators II fixed on the right-angled edge strips. The clamp-type cable sheath grounding cabinet radically solves the problems of disordered installation mode, poor uniformity, poor anti-interference property, poor resistance uniformity and the like when a cable shielding layer is grounded.

The invention discloses a square waterproof connector for information transmission. The square waterproof connector comprises a five-core connector; the five-core connector comprises a connector body,first connecting devices, a mounting device, second connecting devices and a third connecting device; the first connecting devices are arranged on one side of the connector body, and the two first connecting devices are symmetrically disposed with respect to the connector body; the first connecting devices are fixedly connected to the connector body; the second connecting devices are arranged onone side of the connector body; and the number of the second connecting devices is two. According to the square waterproof connector for information transmission, waterproof devices adopt limiting blocks and waterproof pads to prevent water under the action of limiting springs. The waterproof function is strong; the number of the waterproof devices is two, and the waterproof effect is better, so that the waterproof function of the five-core connector is better; and on the one hand, the short circuit of internal components can be prevented, and on the other hand, the service life of the five-core connector is prolonged.

The invention discloses a device and method for installing a bolt and eccentric assembly in a hole. The device comprises a bolt formed by connecting a bolt head and a screw and is characterized in that a hole which is matched with the external diameter of the bolt head and can be used for placing the bolt head is drilled on a building body or a building decoration plate; a hole bottom expanding groove with diameter being more than the diameter of the hole is formed by expanding the hole bottom towards the sides of the hole bottom; the screw and the bolt head are inserted into the hole and eccentrically move to the side of the hole; the hook part of the bolt head is clamped on the edge of the hole bottom expanding groove under the hole; a crescent gap is formed between the side of the screw and the side wall of the hole; and an insertion strip or filling part is inserted in the crescent gap for fixation. The device and the method have the following advantages: the bolt can be stably fixed on the building body or the building decoration plate, in the presence of the firm fixed bolt, various objects such as air-conditioner brackets, curtain walls and the like can be connected on the bolt, and the building decoration plate can be firmly fixed on the building wall body; and the installation is simple, convenient and firm.

The invention discloses a bolt stretching device which comprises a hydraulic cylinder, a stretching rod and a stretching nut. The cross section of a cylinder body of the hydraulic cylinder is annular, a cavity is defined by the cylinder body of the hydraulic cylinder, and the end face of a piston of the hydraulic cylinder forms an ejecting face. An inner thread is arranged at one end of the stretching rod, and the other end of the stretching rod penetrates through the cavity and is provided with an outer thread. The stretching nut is composed of a first nut sleeve buckle and a second nut sleeve buckle. When the first nut sleeve buckle and the second nut sleeve buckle are locked together, an inner thread of the first nut sleeve buckle and an inner thread of the second nut sleeve buckle form an inner thread matched with the outer thread of the stretching rod together, and the end face, close to the hydraulic cylinder, of the stretching nut is provided with a stress face matched with the ejecting face so that the stretching nut can move under the ejecting of the piston in the direction parallel to the axial direction of the hydraulic cylinder. The bolt stretching device achieves the technical purpose that the defects that the connection operation of a stretching nut of an existing bolt stretching device and a bolt to be stretched is complex and consumes much time are overcome, and the bolt stretching device is easy and convenient to use and capable of achieving quick connection of the stretching nut and the bolt.

The invention discloses a hydraulic stretching device which comprises a hydraulic cylinder and a stretching nut. The cross section of a cylinder body of the hydraulic cylinder is annular, a cavity for one end of a bolt to be stretched to penetrate is defined by the cylinder body of the hydraulic cylinder, and the end face of a piston of the hydraulic cylinder forms an ejecting face. The stretching nut is composed of a first nut sleeve buckle and a second nut sleeve buckle. When the first nut sleeve buckle and the second nut sleeve buckle are locked together, an inner thread of the first nut sleeve buckle and an inner thread of the second nut sleeve buckle form an inner thread matched with an outer thread of the bolt together, and the end face, close to the hydraulic cylinder, of the stretching nut, is provided with a stress face matched with the ejecting face so that the stretching nut can move under the ejecting of the piston in the direction parallel to the axial direction of the hydraulic cylinder. The hydraulic stretching device achieves the technical purpose that the defects that the connection operation of a stretching nut of an existing hydraulic stretching device and a bolt to be stretched is complex and consumes much time are overcome, and the hydraulic stretching device is easy and convenient to use and capable of achieving quick connection of the stretching nut and the bolt.