46results about How to "Reliable installation and connection" patented technology

A pipeline connection pipe fitting comprises a nut, a connector outer frustum and a connection pipe horn mouth. The pipeline connection pipe fitting is characterized in that the nut is provided with an inner taper hole, a taper sleeve is arranged in the nut inner taper hole and is a hollow taper sleeve hole, a taper sleeve inner taper hole is arranged at the bottom of the taper sleeve hole, a horn groove is arranged on the taper sleeve inner taper hole, and a taper sleeve taper oblique angle is formed by the taper sleeve hole wall and the taper sleeve outer taper oblique surface. The connector outer frustum extrudes the horn mouth and the taper sleeve inner taper hole, and extrudes the taper sleeve taper oblique angle to the position between the nut inner taper hole and a connection pipe to achieve sealing of the connection pipe and metal hard sealing between the connector outer frustum and the taper sleeve inner taper hole, and the connection pipe horn mouth is extruded to the position between the connector outer frustum and the horn groove to achieve sealing of the horn groove. The pipeline connection pipe fitting has the advantages of being convenient in sealing connection, low in requirement for sealing process, high in sealing performance, adaptive to connection of pipes made from heterogeneous materials and completely interchangeable with a connection nut in the prior art.

A pipe connecting pipe fitting comprises a nut, a joint, an external frustum of the joint and a horn mouth of a connecting pipe. The pipe connecting pipe fitting is characterized in that an inner taper hole is formed in the nut, a clamping sleeve used in cooperation is arranged in the inner taper hole of the nut, the clamping sleeve is provided with a hollow clamping sleeve hole, an inner taper hole of the clamping sleeve is formed in the bottom of the clamping sleeve hole, the inner taper hole of the clamping sleeve is composed of an inner cylindrical hole of the clamping sleeve and a horn groove of the inner taper hole of the clamping sleeve, the wall of the clamping sleeve hole and the external taper bevel of the clamping sleeve form a taper angle of the clamping sleeve, the external frustum of the joint extrudes the inner cylindrical hole of the clamping sleeve to achieve taper face sealing, the external frustum of the joint extrudes the horn mouth of the connecting pipe in the horn groove of the inner taper hole of the clamping sleeve to achieve horn groove sealing, and the inner taper hole of the nut extrudes the clamping sleeve so as to extrude the connecting pipe to achieve clamping sleeve sealing. The pipe connecting pipe fitting has the advantages that sealing connection is convenient and fast to operate, the sealing technological requirements are low, the sealing performance is high, and the pipe connecting pipe fitting can be used for connecting low-hardness thin-wall metal pipelines made of different materials and can be totally interchangeable with a connecting nut in the prior art.

The invention discloses a three-dimensional afforesting box which comprises a box body, wherein the box body comprises a base plate and a plurality of lateral panels arranged on the base plate; at least one space used for accommodating green plants is encircled by the base plate and the lateral panels; a connecting structure used for fixing the box body or splicing a plurality of box bodies with each other is arranged on the base plate or / and at least one lateral panel; a drainage structure is formed on the base plate or / and at least one lateral panel. According to the invention, the structure design is reasonable; water supply, support, fixing, assembling and even storage transportation are fully considered for the structure design; the mounting connecting mode is more reliable; the strength is higher; the power supply and drainage modes are reasonable; the overall mounting speed of a three-dimensional afforesting wall is promoted; the application scope is wide.

The invention provides a special vehicle air cleaner. The air cleaner comprises an air cleaner housing, and an air outlet pipe and a dust outlet of a first-stage filter of the air cleaner are respectively connected with an air inlet of the air cleaner housing and an inlet of a dust exhaust housing. The air cleaner housing is internally provided with an air inflow separating plate which is verticalto an air outlet direction of the air outlet and includes a hole. The hole is provided with a second-stage filter on an air flow direction. The second-stage filter is a V-type filter. Through cooperation of the first-stage filter and the second-stage filter, the technical scheme can effectively remove impurity particles in air, and provides air whose purity is approach to 100% for an engine, andprevents abrasion and damages on internal components of the engine to the maximum extent. Even though in environment that dust content is high, long-time continuous operation of a vehicle can be guaranteed. The special vehicle air cleaner realizes characteristics of high air intake flow and slow resistance variation. The special vehicle air cleaner improves sealing property of filter element installation, and is simple and reliable in structure, and can be conveniently maintained and repaired.

The invention relates to a rack mounting and connection method for test equipment which can be applied to a performance test of an aviation axial flow air compressor. The rack mounting method comprises the step of acquiring a working clearance between an input shaft (1) of an air compressor sample and an output shaft (3) of test equipment air exhaust passage by adopting a pre-installation method before an air compressor is installed. The rack mounting method designs a corresponding front auxiliary supporting structure and an air inlet sealing connection method based on a specific structure type of the air compressor sample.

The invention discloses a channel with anti-loosening and anti-slip functions and its installation and connection device, which consists of a channel (1), a special bolt for the channel (2), an anti-loosening and anti-slip pad (3), and an installed and connected device. The workpiece (d) is composed. The channel (1) has continuous and evenly distributed serrations 5 on the outer surface of the opening; the pad (3) has serrations 4 matching the outer surface serrations 5 of the channel (1) on both sides of the pad (3). There is a downward clip hook 1; the T-shaped head of the bolt (2) is put into the inner groove of the channel (1), the head 2 hooks the inner hook 3 of the channel (1), and the clamp pad (3) passes through The shank portion of the bolt (two), its tooth surface 4 and the teeth 5 on the outer surface 6 of the groove are engaged, and the clip hook 1 clamps and hooks the head 2 of the bolt (two). The bolt (2) passing through the clip (3) will not move (slide) along the length of the channel under load, which is convenient for the pre-precise positioning of the bolt (2) before the workpiece (4) is installed and during use. The installation connection is more stable and reliable; the whole positioning and locking are stable and reliable, easy to operate, no special tools and accessories are required, and can be reused, with excellent economy.

The invention relates to a drum-shaped non-excitation tap switch for accurately installing a transmission rod. The drum-shaped non-excitation tap switch comprises a tap switch contact system, a switch self-locking system, a transmission rod coupler system, a transmission rod guide system, a transmission rod connecting system, an end cap installation system, a transmission rod assembling device and a transmission rod locking device. A brand-new breakthrough mode is adopted, the advantages of a traditional non-excitation tap switch are undertaken, the relation of installation requirements of a concentric reducer shaft end, a self-locking device and the tap switch is ingeniously applied, and limiting nails and an auxiliary drill installing device which are simple in process and low in cost are added and used in perfect cooperation in the installation process. The installation problem of the non-excitation tap switch is completely solved, installation and connection are reliable, accurate and easy, the installation dislocation or inaccuracy of a transformer factory is effectively avoided, the repeated installation performance is good, the running safety and reliability of the tap switch can be well ensured, and the possibility of after-overhaul repeated installation dislocation or angle deviation of the tap switch is completely eliminated.

The invention discloses a detachable lighting lamp tube which is conveniently fastened and connected, which comprises a lighting assembly, the lighting assembly includes a lamp tube and a connecting cover, terminals are arranged at both ends of the lamp tube, and conductive heads are vertically arranged on the terminals , the connecting cover is sleeved on both ends of the lamp tube, the connecting cover is embedded on the outer wall of the terminal and connected to the terminal in rotation; and a barrier sleeve, the lamp holder is provided with a cavity, the barrier sleeve is installed in the cavity, and the conductive head is inserted into the cavity through the connection cover and connected with the barrier sleeve; the present invention adds A fastening device is provided to match the lamp holder. The outer wall is made of insulating material, which makes the installation safer, avoids direct contact with the internal wires during installation, reduces the risk of leakage, and makes the installation and connection more reliable. It has the function of ventilation and heat dissipation, and reduces electrical conductivity The temperature of the wire can increase the service life.

The invention discloses a multifunctional ignition switch cover which is a bilateral symmetry cover body and is formed by casting. An ignition switch hole is arranged in the middle of the cover body, the left side and the right side of the upper portion of the cover body upwards extend to form instrument installation lugs respectively, horizontally penetrating instrument installation holes are arranged on the instrument installation lugs, an upper connection plate installation hole is arranged on the lower portion of the cover body, a horizontally penetrating semi-circular handbar snapping notch is arranged on the rear side of the lower portion of the cover body, a cover body plane where the ignition switch hole is located is lower than a cover body plane where the upper connection plate installation hole is located, an axis of the ignition switch hole is parallel to an axis of the upper connection plate installation hole, and the middle of the cover body gradually and backwards inclines relative to the upper portion and the lower portion of the cover body. According to the multifunctional ignition switch cover, functions of an instrument installation bracket, a handbar clamp and the ignition switch cover are integrated, parts are reduced, space is saved, processing and manufacturing are easy, and installation and connection are firm and reliable.

The invention relates to a construction method for arranging a steel corbel on a concrete frame column. The construction method comprises the steps of assembling steel reinforcements to form a steel reinforcement framework, and fixing at least four pre-cast screws on at least one face of the steel reinforcement framework according to the designed elevation, wherein one end of each pre-cast screw and the steel reinforcements in the steel reinforcement framework are in point welding to be fixed, and the other end of each pre-cast screw is exposed out of the steel reinforcement framework; installing a formwork on the outer side of the steel reinforcement framework, wherein the portions, exposed out of the formwork, of the pre-cast screws are protected by being wound with adhesive plasters; pouring concrete in the steel reinforcement framework; after the concrete reaches the design strength, disassembling the formwork to form the concrete frame column; installing the steel corbel on the concrete frame column, wherein the steel corbel is provided with a plurality of transverse adjustable bolt holes, and the steel corbel is fixed on the pre-cast screws through bolt holes in an adjustable mode.

The invention relates to a double-faced electric smelting pipe fitting composed of a metal reinforced material layer serving as the middle and thermoplastic plastic composite layers serving as inner and outer layers and used for steel-plastic composite pressure pipeline and a connecting method. When a composite pipe interlayer is made of metal, the electric smelting pipe fitting in a casing pipe is firstly arranged on the outer surface of the composite pipe end in a sleeving mode, then the electric smelting pipe fitting outside the casing pipe is sleeved with a gasket and is inserted into a composite pipe hole, the step end face of the electric smelting pipe fitting outside the casing pipe is fit with the step end face of the electric smelting pipe fitting in the casing pipe, the composite pipe and a pipe network are fixed, an electric smelting welder is turned on, the electric smelting pipe fitting in the casing pipe and the outer surface of the composite pipe are molten integrally, whether an outward protruding state and size of a welding measurement core meet the requirements or not are detected through the welding measurement core, then the electric smelting pipe fitting outside the casing pipe is turned on and is molten with the inner surface of the composite pipe and the electric smelting pipe fitting in the casing pipe, and finally whether the outward protruding state and size of the welding measurement core meet the design requirements or not are detected through the welding measurement core.

The invention relates to a pressure releasing passage of a switch cabinet. A pressure releasing cover covers a pressure releasing window in a top plate of a cabinet body of the switch cabinet, one side of the pressure releasing cover is fixedly connected with the top plate of the cabinet body by a plastic screw, the other side of the pressure releasing cover is hinged with the top plate of the cabinet body via a hinge, a groove s formed in a top plate of the pressure releasing cover and is sunken, two side walls of the groove incline towards a downward and outward direction along a vertical central line of the groove so that the two side walls of the groove form a slanted inclined opening, through holes are formed in the two side walls of the groove, and the two sides of the pressure releasing cover are connected to the top plate of the cabinet body of the switch cabinet by the plastic screw and the hinge. The opening resistance of the pressure releasing cover can be reduced, the pressure releasing cover rotates and is turned over along the hinge after being opened and cannot be ripped off and lost, and the pressure releasing passage is reliable to install and connect; the groove is formed in the top plate of the pressure releasing cover and is sunken, the two side walls of the groove incline to form the slanted inclined opening, an edge of the groove is convenient to grasp, the carrying and installation operation is convenient, the through holes in the two side walls of the groove form auxiliary pressure releasing holes, and the pressure releasing effect is improved.