102results about How to "Ensure connection tightness" patented technology

A connecting arrangement for coolant lines includes a first coupling piece, connected seal-tight to a first line endpiece, and a second coupling piece, connected seal-tight to a second line endpiece. The coupling pieces each have radially extending sealing surfaces on the side facing toward the other coupling piece. A sealing ring is mounted between the sealing surfaces. The coupling pieces are joined to each other via a screw arranged laterally offset from the sealing surfaces so the line endpieces connect to each other via respective bores in the coupling pieces. A form body between the coupling pieces arranged at a spacing from the screw on the side facing away from the sealing surfaces is configured so a lever action occurs when the coupling pieces are joined to each other leading to a uniform pressing together of the sealing ring between the sealing surfaces of the coupling pieces.

The invention discloses a device and a method for preparing a building structure based on 3D printing. The device comprises a 3D printing device and a steel bar loading device; the 3D printing devicecomprises a material storage cavity and a spray head which is connected with the material storage cavity and can move relative to a base frame; and the steel bar loading device is movably arranged relative to the base frame and is provided with a driving mechanism, wherein the driving mechanism drives short steel bars or short stripped bars to carry out inserting motion in the direction crossing the stacking direction of a cement-based paste layer, and the driving mechanism inserts the short steel bars or the short stripped bars into an interlayer interface which at least crosses over two adjacent layers of cement-based paste layers printed by the 3D printing device. No printing gap exists between the printed cement-based paste layers and the inserted steel bars, so that the connection tightness between cement paste and the steel bars is guaranteed, and the mechanical property and the toughness of the interlayer interface of 3D printed cement-based material are really improved.

The invention discloses a device for preparing a building structure based on 3D printing. The device comprises a 3D printing device and a steel bar loading device. The 3D printing device comprises a material storage cavity and a spray head which is connected with the material storage cavity and can move relative to a base frame; the steel bar loading device is movably arranged relative to the baseframe; the steel bar loading device comprises a cutting component, a feeding mechanism, and a driving mechanism, wherein the cutting component is used for cutting a long steel bar or a long strippedbar into short steel bars or short stripped bars, the feeding mechanism is used for feeding the long steel bar or the long stripped bar to a cutter head of the cutting component, and the driving mechanism is used for driving the short steel bars or the short stripped bars to carry out inserting motion in the direction crossing the stacking direction of a cement-based paste layer, and the driving mechanism inserts the short steel bars or the short stripped bars into an interlayer interface which at least crosses over two adjacent layers of cement-based paste layers printed by the 3D printing device. No printing gap exists between the printed cement-based paste layers and the inserted steel bars, so that the connection tightness between cement paste and the steel bars is guaranteed, and themechanical property and the toughness of the interlayer interface of 3D printed cement-based material are really improved.

The invention discloses a cutter linkage structure of a mixing cup, which comprises a cutter component rotatingly arranged in the mixing cup and a driving shaft rotatingly arranged in a cup cover component; the external end of the driving shaft is drivingly connected with a driving motor; the internal end is linked with the cutter component through a driving connector; an elastic liftout attachment is arranged between counterfaces of the driving connector and the cutter component to reduce the fit clearance and realize an automatic separation between the driving connector and the cutter component when the cover is opened. Through the arrangement of elastic liftout attachment between counterfaces of the driving connector and the cutter component, the invention can ensure tightness of connection between the driving connector and the cutter component when the cup cover component is covered with the mixing cup, thus effectively reducing shock, noises and abrasion; when the cup cover component is opened, the elastic liftout attachment separates the driving connector from the cutter component, thus solving dangers brought about as the cutter component stand on a driving connector to trigger a mistaken operation, effectively preventing injuries caused by the cutter to a human. The structure is simple and reasonable, safe and reliable; the service life is long.

The invention discloses a donkey-hide gelatin cake cutting machine. The donkey-hide gelatin cake cutting machine comprises a screw cap, a material pushing bar, a knife dish component, a material holding box, a machine body, foundations, a motor and a control switch, wherein a cover cap and a material pushing cavity are arranged on the screw cap, and an opening at the bottom of the screw cap is communicated with the knife dish component; the material pushing bar can be inserted into a hollow passageway of the material pushing cavity; the knife dish component is installed at the upper part of the machine body, and a cutting blade is horizontally installed in a weld knife dish and can rotate around a rotating shaft; the material holding box is movably arranged on one side of the machine body and is located below a discharge hole of the weld knife dish; the machine body provides installing bases for all the components; the foundations comprise a machine body foundation and an electronic control module installed on the machine body foundation; the motor is installed inside the machine body through a motor support and is connected to the rotating shaft of the cutting blade; the control switch controls start and stop of the motor. According to the donkey-hide gelatin cake cutting machine, quantitative cutting of the decocted donkey-hide gelatin cake barstock can be achieved, blanking is uniform and stable, bonding and damage of donkey-hide gelatin blocks can be avoided, appearance of a donkey-hide gelatin cake slice product is improved, convenience is brought to eating of a client, the situation that a finger accidentally touches the cutting blade from a material feeding opening is prevented, and thus the safety of operating personnel is guaranteed.

The invention belongs to the technical field of electrical equipment and particularly relates to a PCB (printed circuit board) signal unit shield grounding device. The PCB signal unit shield groundingdevice comprises a shielding case used for shielding PCB signal units, connecting pieces are arranged on the outer side of the shielding case, and after the PCB signal units are shielded by the shielding case, the connecting pieces contact with the inner wall of a cabinet shell provided with a PCB. The shielding case used for shielding the PCB signal units is arranged, the connecting pieces are arranged on the shielding case, and the PCB signal units are shielded and grounded, so that problems that PCB signal units are grounded badly leading to mutual interference in the prior art are solved,the PCB signal units are assuredly well grounded, good shielding effect is achieved, normal use of the PCB signal units and the PCB is guaranteed, and good use functions are achieved.

A toy assembling apparatus is disclosed. The toy assembling apparatus includes at least one connector, and each connector having at least one of a first connecting portion and a second connecting portion. The first connecting portion includes a connection plate and a connection pillar disposed on the connection plate. The second connecting portion includes a left side board, a right side board, a back side board, a bottom board, and a top board, which jointly form a containing slot for inserting the first connecting portion. The containing slot includes a plate slot for containing the connection plate and a pillar slot for containing the connection pillar. Limit grooves or limit protrudes are formed on the connection pillar. The pillar slot has protrudes or grooves formed thereon correspondingly. The limit grooves match the limit protrudes, such that the first connecting portion matches the second connecting portion of another connector tightly.

The invention discloses a mounting rack for an integrated cooker fan. The mounting rack comprises a base and an arc-shaped clamping seat, the arc-shaped clamping seat is arranged on the base, the arc-shaped clamping seat comprises a bottom support and an arc-shaped frame, and the arc-shaped frame is located in the bottom support. A mounting method comprises the following steps that 1) the arc-shaped clamping seat is mounted; 2) the arc-shaped clamping seat and the base are mounted; 3) a motor supporting part and an air inlet pipe supporting part are mounted; and 4) the fan and the mounting rack are mounted. According to the mounting rack for the integrated cooker fan, mounting and fixing between the mounting rack and the inner wall of an integrated cooker are realized through the base, thearc-shaped clamping seat can be used for clamping and fixing a turbine casing on the fan, meanwhile, a motor on the fan is supported through the motor supporting part, and then an air inlet pipe on the fan is supported by using the air inlet pipe supporting part, so that the mounting firmness and reliability between the whole fan and the mounting rack are effectively guaranteed, the structural stability of the integrated cooker is improved, moreover, the angle of an air outlet pipe can be adjusted according to the actual position of an air duct pipe in the integrated cooker after the fan is mounted on the arc-shaped clamping seat.

The invention discloses a data transmission structure for mathematical algorithm storage equipment based on a graph theory, and specifically relates to the technical field of data transmission. The data transmission structure comprises a data transmission structure body, wherein the two sides of the data transmission structure body are integrally connected with data interfaces, the two sides of the top part and the bottom part of the data transmission structure body are fixedly connected with heat dissipation shells; a plurality of heat conduction copper columns are fixedly connected to innercavities of the heat dissipation shells, a plurality of heat conduction pieces are fixedly connected to the outer side walls of the heat conduction copper columns, a clamping base is fixedly connectedto one side of the data transmission structure body, first sliding sleeves are embedded in the two sides of the inner cavity of the clamping base, and first sliding rods are slidably connected into the first sliding sleeves. By arranging the clamping base and the heat dissipation shells, compared with the prior art, the tightness of data interface connection is effectively improved, the fixing safety of the data transmission structure body during data transmission is guaranteed, heat accumulated during work is effectively dissipated, and the service life of the data transmission structure body is guaranteed.

The invention discloses an electronic cigarette blowing unlocking device and method. The device comprises an unlocking shell, damping springs, a microphone assembly, a connecting ring, an electric connecting groove, a second fastening spring, an indicator light bar, a fastening block, a connecting column and an electric connecting block, a first fixing lug is arranged on the inner wall of the unlocking shell, the first fixing lug is hinged to a first damping block, and the side, away from the first fixing lug, of the first damping block is provided with a damping support rod. According to the invention, vibration generated in the using process is buffered through the arranged damping springs, the connection tightness in the device is ensured, and therefore the working stability of the device is improved; blowing unlocking of an electronic cigarette is achieved through the microphone assembly, an extra key switch does not need to be added, the machining difficulty is reduced, and the economic benefit of a product is improved; and the unlocking device is merged into an operation circuit of the electronic cigarette through mutual cooperation of the electric connecting block and the connecting column, disassembly and assembly are convenient, and the labor intensity of maintenance is reduced.

The invention discloses a wind power ring blank capable of reducing stress concentration and a preparation process thereof. An inner sleeve is connected with the inner wall of a ring body in an interference fit mode, so that the assembled wind power ring blank is connected more tightly, positioning holes are matched with first threaded holes, locking bolts installed at the positioning holes guarantee the connection tightness of the wind power ring blank and can effectively reduce stress concentration, when the wind power ring blank is prepared, the ring body and an inner sleeve blank are prepared firstly, then rough turning is conducted on the ring body and the inner sleeve blank, hardening and tempering are conducted, then finish machining is carried out, stress relief annealing is performed on the inner sleeve blank, stress relief annealing can relieve stress and ensure the hardness of the inner sleeve, then, natural cooling and assembly of the inner sleeve are carried out, the windpower ring blank is connected more tightly through interference fit, and the whole wind power ring blank has obviously reduced stress concentration phenomenon and high strength as compared with traditional parts after installation; and meanwhile, the preparation process of the wind power ring blank is relatively simple.

The invention provides a steel structure building wallboard unit structure easy to assemble. The steel structure building wallboard unit structure comprises a mounting underframe, a connecting column, an upper gland, upper positioning grooves and lower positioning grooves, wherein walls are fixedly connected to the upper portion of the mounting underframe, and the lower surfaces of the walls are located in a mounting underframe groove; the connecting column is movably connected between the two sets of walls; the upper positioning grooves are formed in the left sides and the right sides of the upper surfaces of the walls correspondingly in two positions; the upper gland is fixedly connected to the upper portions of the upper positioning grooves through screws; the lower positioning grooves are formed in the lower surfaces of the walls; the mounting underframe is an arched groove body, and a lower reinforcing block of a trapezoidal structure is connected to the upper surface of the mounting underframe in a welded mode; and a lower fixing hole is formed in front of the lower reinforcing block and is an internal threaded hole. Therefore, the connecting mode of the spliced walls is improved, a middle connecting mechanism is improved, and the problems of stress concentration and insufficient airtightness of the wall connecting positions are reduced while the connecting strength is ensured.

The invention relates to the technical field of speed reducer installing and positioning, and discloses a speed reducer installing and positioning device facilitating shaft alignment. The speed reducer installing and positioning device comprises a fixing plate, a clamping base is arranged on the inner wall of the fixing plate, a rotating shaft is fixedly installed in the fixing plate, and a rotating plate is movably installed on the outer wall of the rotating shaft. a magnet is fixedly installed inside a clamping base, and the inner wall of the rotating plate is fixedly connected to a spring. By slightly rotating the rotating shaft, when the magnet in a circular ring is aligned with the magnet in the clamping base, when the magnet is not aligned with the magnet in the clamping base, the attraction force between the two magnets can be blocked under the action of a baffle, after the rotating shaft is aligned with the fixing plate, under the action of the magnets, the circular ring expands towards the outer side, an air bag pushes the circular ring on the outer side to expand, an ejector rod ejects the rotating plate, the rotating plate enters the clamping base, the rotating shaft and the fixing plate move synchronously, and the effect of precise butt joint of the rotating shaft of the speed reducer is achieved.

The invention discloses a movement-facilitating gantry type filter press, and relates to the technical field of filter presses. The movement-facilitating gantry type filter press comprises a machine body, wherein a push handle is fixedly mounted on one side of the machine body; four vibration absorption sleeves are arranged at the bottom of the machine body; first springs are arranged in the vibration absorption sleeves; one end of each first spring is fixedly connected with the bottom of the machine body, and the other end of the first spring is fixedly connected with a lifting plate; the sides, backing onto the first springs, of the lifting plates are movably connected with ball shafts. According to the movement-facilitating gantry type filter press disclosed by the invention, by the arrangement of the first springs in the vibration absorption sleeves and cooperative arrangement of the lifting plates, the ball shafts and a stable frame, a vibration absorption effect is achieved in amoving process of the gantry type filter press; by insertion of bolts into fixed sleeves and fixed rods and fixed cooperative arrangement of the bolts by screw caps, the stability of a lower structureof the gantry type filter press can be effectively improved.

The invention relates to an anti-seismic foundation applied to a subway. The anti-seismic foundation comprises an anti-seismic pillar, a bearing table foundation, steel fiber reinforced concrete, anti-seismic spring steel pieces, steel piece embedded parts, anti-seismic outer rigid cylinders, anti-seismic interior rigid cylinders, bearing table stressed ribs, bearing table frame vertical ribs, bearing table distributed ribs, vertical tie bars and oblique tie bars. The anti-seismic pillar stretches in the bearing table foundation. The anti-seismic spring steel pieces are arranged on the periphery of the anti-seismic pillar from top to bottom. The anti-seismic spring steel pieces are connected with the bearing table foundation and the end portion of the anti-seismic pillar through the steelpiece embedded parts. The outer sides of the steel piece embedded parts are provided with the anti-seismic outer rigid cylinders, and the steel piece embedded parts, the anti-seismic outer rigid cylinders and the anti-seismic interior rigid cylinders are of an integrated structure. The anti-seismic foundation has the beneficial effects that the anti-seismic spring steel pieces high in elastic limit and high in fatigue strength are arranged, and the effects of resisting earthquakes and eliminating energy are improved in the subway movement process of the foundation.

The invention discloses a multi-pipe connected confluence device. The device comprises a confluence joint, wherein an outgoing pipe is arranged on the bottom surface of the confluence joint; connecting pipes are arranged on the four side walls of the confluence joint; each end part of the four connecting pipes is connected with an incoming pipe; the incoming pipe is connected with the connecting pipe through a rotating cylinder; one end of the rotating cylinder is screwed with the connecting pipe; the other end of the rotating cylinder is clamped with the incoming pipe; and the rotating cylinder comprises a left semi-arc cylinder and a right semi-arc cylinder. The device has the advantages that the structure is simple, the practicability is high; according to the multi-pipe connected confluence device, the butt joint between the pipelines and the main pipeline is simpler; the butt joint between the pipelines at different angles and the main pipeline can be realized through one confluence device; the connecting difficulty between the pipelines and the main pipeline is effectively simplified; and meanwhile, the confluence device can play a certain buffering role, so that the impact strength of the water flow which flows into the main pipeline is buffered to a certain extent.

The invention refers to a modular adapter for a connector insert, characterized in that it comprises a hollow body provided with a through cavity for receiving a connector insert, an external wall of said hollow body being provided with reversible retention means able to cooperate with the internal wall of a through hole in a connector box in which said adapter is intended to be mounted. The invention also refers to a connection unit comprising two modular adapters, respectively male and female adapters.