813results about How to "Improve connection tightness" patented technology

A composite baseball bat includes a handle, which has a tapered portion formed on one end of the handle body thereof and gradually increased in diameter in direction away from the handle body, a spacer member formed of a soft material having a uniformly distributed predetermined thickness and covered on the periphery of the tapered portion of the handle, and a barrel, which is sleeved onto the handle, having a first opening ad a second opening respectively located on two distal ends thereof for the passing of the handle body of the handle and a tapered portion located on one end around the first opening and pressed on the spacer member against the tapered portion of the handle.

The invention belongs to the field of washing devices and particularly relates to a washing machine control panel base and a washing machine with the same. The washing machine control panel base comprises a control panel base body (1) and a decoration plate (16) arranged on the upper surface of the control panel base body. A decoration strip (3) is annularly arranged on the periphery of the control panel base body and extends downwards along the periphery to form a wrapping edge (4) which wraps an upper edge (5) of a washing machine box body. The washing machine control panel base and the washing machine box body are fixedly installed through a fastener, are further reinforced through the decoration strip and are firmly connected. The installation procedures are simplified, installation is convenient, time is saved, and the installation efficiency is improved.

The invention relates to a pulse laser synchronous riveting and welding method and a device of ultrathin plates. An upper layer of plate and a lower layer of plate are stacked and positioned on a concave mold having mold holes; a bottom mold is arranged on the concave mold; a pulse laser beam is used for acting on the upper layer of plate or an energy absorbing layer coated on the surface of the upper layer of plate to form an explosive plasma; the lower layer of plate is collided by the upper layer of plate; the upper layer of plate and the lower layer of plate generate high-strain-rate plastic flow coupling; and under the restraint of the bottom mold, the upper layer of plate and the lower layer of plate are plasticized to form rivet button shapes so as to generate mechanical interlocking for riveting. In the plastic deformation process, the pressure stress exists on the contact interfaces of the upper layer of plate and the lower layer of plate, and the high-speed sliding and the shearing deformation are generated, so that the interfaces generate the melting and the atomic diffusion, and the upper layer of plate and the lower layer of plate are welded when colliding the bottom mold. The method and the device synchronously realize the riveting and the welding of the upper layer of plate and the lower layer of plate; and joints formed by the method and the device have higher connecting strength and fatigue resistance through the compounding effect characteristic of the mechanical bonding and the metallurgic bonding.

A fluid reservoir for a paint spray gun comprises a container having an opening and a cover body that sleeves on the opening; the cover body is provided with a connecting port that connects with the paint spray gun; a side of the container has scale and the container is provided with a ventilation device; a filtering device is installed in the fluid reservoir; the cover body is provided with a groove corresponding to the periphery of the container opening; the periphery of container opening is inserted into the groove; a buckle mechanism connects the cover body with the container. Compared with the structure of screw thread connection, such connection manner improves the tightness between the cover body and the container, and makes the cover body and the container easier to be assembled and disassembled.

The invention discloses a 3D-printing-based method for making a three-dimensional luminous character. The 3D-printing-based method for making the three-dimensional luminous character comprises the steps that (1) a character-shaped face plate is engraved; (2) surrounding edge materials of the luminous character are deposited along the edge of the face plate through a three-dimensional printing device so as to obtain a surrounding edge; (3) the periphery of the surrounding edge is milled; (4) a bottom plate is engraved, a character-shaped fixing groove is engraved in the bottom plate, LED particles are distributed on the bottom plate, the bottom plate provided with the LED particles is arranged on the surrounding edge machined in the step (3), and machining of the whole three-dimensional luminous character is finished. According to the 3D-printing-based method, a high automation degree is achieved, machining of the surface plate and processes of the surrounding edge of the three-dimensional luminous character are combined by creatively adopting 3D printing and engraving technologies, and therefore machining and fixing procedures of the surface plate and the surrounding edge are automated. A character bending machine is omitted, a great deal of manpower consumed in the fixing procedures of the surface plate and the surrounding edge is also avoided, and the machining speed is increased greatly.

The invention discloses a two-in-one linkage film sticking production line and a production process thereof. The two-in-one linkage film sticking production line comprises a feeding belt, a linkage carrying manipulator, a film sticking platform, a transfer platform film taking and sticking mechanism and a discharging belt, wherein the feeding belt and the discharging belt are respectively arrangedat the left end and the right end of a rack; the film sticking platform comprises two platforms; the transfer platform comprises two platforms; the linkage carrying manipulator is arranged at the front sides of the film sticking platform and the transfer platform along the left-right direction, and three sets of suction components are arranged on the linkage carrying manipulator; the film takingand film sticking mechanism comprises two sets, and the two sets of film taking and film sticking mechanisms are respectively arranged at the rear sides of the two film sticking platforms. According to the two-in-one linkage film sticking production line, the single film sheet is peeled off the peeling plate by pulling the discharge belt, the film pressing component is used for tearing off the film sheet from the mounting plate, meanwhile, the torn-off film sheet is roll-pressed on the glass plate to achieve the line contact type film sticking, the sticking air bubbles are effectively reduced,and through carrying the three sets of suction assemblies of the linkage carrying manipulator, the three groups of glass plates can be taken out and discharged, doubling the efficiency of the single-machine film sticking.

A synchronous injection-type medicine mixer for a spraying machine comprises am engine. The engine drives a spray pump. The spray pump is provided with a water suction port and a water outlet. The water suction port is connected with a water suction component. The water outlet is connected with a spray pipe and a spray gun. The water suction component comprises a water suction pipe. The synchronous injection-type medicine mixer for the spraying machine is characterized in that: a mixing pipe is connected in the water suction pipe; the mixing pipe comprises a water inlet, a suction chamber, a mixing chamber and a liquid outlet; a jet flow nozzle with a conical inner bore is arranged in the water inlet; the opening of the jet flow nozzle is positioned in the suction chamber; a medicine suction port is formed in the wall of the mixing pipe in the suction chamber; a miniature electromagnetic injection pump is driven by the engine and a synchronous signal; pesticides in a mother solution container are sucked by a solution suction port of the electromagnetic injection pump; and a medicine outlet of the electromagnetic injection pump is connected with the medicine suction port of the mixing pipe.

A pipeline connecting pipe fitting comprises a nut, a joint, a joint external cone table and a connection pipe horn port and is characterized in that an inner cone hole is formed in the nut, a clamp sleeve for match usage is arranged in the inner cone hole of the nut, the clamp sleeve is provided with a hollow clamp sleeve hole, a clamp sleeve inner cone hole is formed in the bottom of the clamp sleeve hole and consists of a clamp sleeve inner cylinder hole and a clamp sleeve inner cone hole horn groove, the clamp sleeve inner cylinder hole is provided with a seal cone surface, a clamp sleeve hole wall and a clamp sleeve outer cone inclined surface form a clamp sleeve cone inclined angle, the joint outer cone table extrudes the seal cone surface to achieve cone surface sealing, the joint outer cone table extrudes the connection pipe horn port in the clamp sleeve inner cone hole horn groove to achieve horn groove sealing, and the nut inner cone hole extrudes the clamp sleeve to extrude a connection pipe to achieve clamp sleeve sealing. The pipeline connecting pipe fitting has the advantages that seal connection is convenient, seal process requirements are low, seal properties are high, the pipeline connecting pipe fitting can be applied to connection of low-hardness thin-wall metal pipes made of dissimilar materials and can be completely interchanged with connection nuts in the prior art.

The invention discloses a heat-radiating power cabinet mounted in a clamped mode. The heat-radiating power cabinet comprises a top plate, a power cabinet body, a base and support legs. An electric component mounting plate is arranged on the inner side of the power cabinet body. The top plate and the base are respectively arranged at the top and the bottom of the power cabinet body. The support legs are arranged at the bottom of the base. A plurality of upper insertion rods are mounted on the outer ring of the lower side of the top plate. Upper insertion grooves matched with the upper insertionrods are correspondingly formed in the top of the power cabinet body. A plurality of lower insertion rods are mounted on the outer ring of the upper side of the base. Lower insertion grooves matchedwith the lower insertion rods are correspondingly formed in the bottom of the power cabinet body. Fixing holes communicated with the upper insertion grooves and the lower insertion grooves are formedin the inner wall of the power cabinet body. Upper clamping components are mounted on the fixing holes corresponding to the upper insertion grooves. Lower clamping components are mounted on the fixingholes corresponding to the lower insertion grooves. The heat-radiating power cabinet has the advantages of novel structure, reasonable design, convenience in mounting and demounting, stability, reliability, improved construction efficiency, good heat radiation effect, convenience in later-period maintenance, and popularization and application benefiting.

The invention discloses a gas-liquid separator and a heat pump unit comprising the same. The gas-liquid separator comprises a casing, a first inlet/outlet pipe and a second inlet/outlet pipe; an inner cavity of the casing comprises a separation cavity; the separation cavity forms a rotating cavity extending vertically along an axis; an oil return port communicating with the separation cavity is formed in the bottom end of the casing; the first inlet/outlet pipe and the second inlet/outlet pipe are connected onto the casing; the first inlet/outlet pipe communicates with the separation cavity in the tangential direction to form a communicating port; the second inlet/outlet pipe extends into the inner cavity from the top end of the casing; and an opening, extending into the inner cavity, of the second inlet/outlet pipe is located below the communicating port. According to the gas-liquid separator, liquid oil drops in an oil-gas mixture are suitable to flow in the first inlet/outlet pipe when separated, so that the purity of a separated gaseous refrigerant can be improved; and a liquid refrigerant contained in a gas-liquid mixture is suitable to flow into the second inlet/outlet pipe when the liquid refrigerant is relatively many, thus, the separation speed can be increased, and the gas-liquid separator further has multiple functions during practical application.

The invention discloses a method for realizing the pressure P-displacement characteristic of a bellows vacuum capsule, and aims to provide a method for realizing the pressure P-displacement characteristic of the bellows vacuum capsule, which has high structural strength and reliability and is suitable for higher environment working temperature. The invention is realized by the following technicalscheme: a single welding bellows is used as an elastic sensitive element, the pressure P-displacement W characteristic required by the vacuum capsule is converted into the uniform distribution force rigidity K'P of the vacuum capsule, the material and the elastic modulus E are determined, a dimensionless effective area is obtained, the effective area of the welding bellows vacuum capsule and the concentrated force rigidity of the welding bellows are calculated, and compared with the concentrated force rigidity of the welding bellows, the design of the welding bellows vacuum capsule is checkedto judge whether the pressure P-displacement W characteristic requirement of the vacuum capsule of the valve is met, and otherwise, according to the difference of the concentrated force rigidity Kf ofthe welding bellows vacuum capsule, the values of the wave plate thickness H, the wave number n and the wave height H are adjusted, and the calculation is redesigned.

The invention discloses a pipe joint. The pipe joint comprises a pipe connection section, a joint body and a locking nut, wherein the locking nut is connected to one end of the joint body, the pipe connection section is connected to the other end of the joint body, and ring-shaped grooves are formed in the pipe connection section. The pipe joint provided by the invention has the advantage that the ring-shaped grooves are formed in the pipe connection section, so as to improve the connection leakproofness between the joint and a pipe during use.

The invention discloses a battery housing and a manufacturing method thereof, a battery, a battery bank, a battery pack and an electric vehicle. The housing comprises a cover board and a shell, wherein an opening is formed in at least one end; at least one of the cover board or the shell comprises a support structure and a bending part; and the cover board is hermetically connected with the shell in an atom binding manner. The battery housing disclosed by the invention can have relatively good connection strength and sealing property.

The invention discloses a protective bridge elastic guardrail structure and a mounting method, the protective bridge elastic guardrail structure comprises a bearing mechanism and a fixing mechanism, and the fixing mechanism is mounted at the upper end of the bearing mechanism. According to the guardrail structure, an elastic sleeve is connected between a mounting plate and the bottom surface of abearing frame; the outer wall of the side, away from a rescue rod assembly, of the bearing frame is connected with a plurality of buffer columns. A buffer plate is mounted at the front ends of the buffer columns; so that when a vehicle is out of control and collides with the guardrail, the out-of-control vehicle can be buffered for the first time by utilizing the buffer plate and the buffer columns; the impact force is prevented from directly acting on the guardrail to damage the guardrail; meanwhile, when the impact force is too large, a rubber gasket on the elastic sleeve can be used for conducting secondary buffering on the out-of-control vehicle, the head of the out-of-control vehicle can be deflected through a center rotary drum, the direction of the out-of-control vehicle head is turned to a front rail, and casualties caused by the fact that the vehicle easily breaks through the guardrail and falls into a river after colliding with the guardrail are avoided.

The invention relates to a push type landslide physical model test system and a push type landslide physical model test method under action of reservoir water. The push type landslide physical model test system comprises a U-shaped groove, and one end of the U-shaped groove is provided with a baffle plate in a sealed manner. A simulated slide bed is disposed in the U-shaped groove, and is provided with a simulated landslide body. The slope surface of the simulated landslide body faces the baffle plate. The U-shaped groove, the baffle plate, the simulated slide bed, and the simulated landslide body are used to form a water reservoir in an encircled manner, and the water reservoir is connected with a water inlet device and a water outlet device. A thrust loading device is provided, and is disposed on the trailing edge of the simulated landslide body. The landslide physical model test system used for reservoir water cyclical fluctuation downward push type landslide evolution process and deformation failure mode research is provided. Based on two actual conditions, namely reservoir water level and rainfall, the reservoir water level fluctuation and the application of the landslide trailing edge thrust are reasonably matched with each other, and then actual landslide external conditions are simulated. The test system has advantages of simple structure, convenient operation, economy, practicability, and convenient popularization.

A heat sink and mounting bracket arrangement includes a radiation fin module including a stack of radiation fins and an insertion hole located in one end of the stack of radiation fins, and a mounting bracket made from a metal plate sheet by stamping and including a bottom panel clamped on a bottom wall of the stack of radiation fins, an angled mounting panel rearwardly extending from one end of the bottom panel, a mounting slot cut through opposing top and bottom walls of the mounting panel for the mounting of a fastening member to affix the mounting bracket to an external substrate, and an angled plug plate forwardly extending from the bottom panel and tightly press-fitted into the insertion hole of the radiation fin module.