31results about How to "Does not affect axial movement" patented technology

The invention relates to a steel-sleeve steel steam insulation pipe and a rolling supporting mechanism thereof, wherein the nominal diameter of an inner sleeve steel pipe of the steel-sleeve steel steam insulation pipe is DN 250-DN 500. The rolling supporting mechanism comprises an upper steel hoop, a lower steel hoop, two upper idler wheels and two lower idler wheels, wherein the upper idler wheels and the lower idler wheels are respectively arranged on the upper steel hoop and on the lower steel hoop and distributed symmetrically; the end parts of the upper steel hoop and the lower steel hoop are clamped tightly by bolts; and when the axes of the inner sleeve steel pipe and an outer sleeve steel pipe are overlapped, the two lower idler wheels and the inner wall of the outer sleeve steelpipe are contacted in a rolling friction way, and fit-up gaps are left between the upper idler wheels and the inner wall of the outer sleeve steel pipe. The steel-sleeve steel steam insulation pipe comprises the inner sleeve steel pipe, the outer inner sleeve steel pipe, the rolling supporting mechanism, insulation material and heat-preservation material, wherein the external diameter of the heat-preservation layer is smaller than the internal diameter of the outer sleeve steel pipe and an air layer is formed between the heat-preservation layer and the sleeve steel pipe. The rolling supportingmechanism has small friction force, therefore, the stress of the rolling supporting mechanism and the inner sleeve steel pipe is reduced.

The invention relates to a steel-sleeve steel steam insulation pipe and a rolling supporting mechanism thereof, wherein the nominal diameter of an inner sleeve steel pipe of the steel-sleeve steam insulation pipe is DN 600-DN 700. The rolling supporting mechanism comprises an upper steel hoop, a lower steel hoop, two upper idler wheels arranged on the upper steel hoop and distributed symmetrically, and four lower idler wheels arranged on the lower steel hoop and distributed symmetrically, wherein the four lower idler wheels are evenly divided into two groups; the end parts of the upper steel hoop and the lower steel hoop are connected by bolts; and when the axes of the inner sleeve steel pipe and an outer sleeve steel pipe are overlapped, the four lower idler wheels and the inner wall of the outer sleeve steel pipe are contacted in a rolling friction way, and gaps are left between the two upper idler wheels and the inner wall of the outer sleeve steel pipe. The steel-sleeve steel steaminsulation pipe comprises the rolling supporting mechanism and also comprises insulation material positioned between the rolling supporting mechanism and the inner sleeve steel pipe, heat-preservation material with the external diameter smaller than the internal diameter of the outer sleeve steel pipe, an air evaporation valve arranged on the outer sleeve steel pipe, and erosion resistant coatingsleeved outside the outer sleeve steel pipe. The rolling supporting mechanism has small friction force, therefore, the stress of the rolling supporting mechanism and the inner sleeve steel pipe is reduced.

The invention relates to an adjustable continuous injector. The injector comprises a sleeve, a piston, a core rod, a fixed handle, a movable handle and an adjusting screw rod, wherein the rear part of the sleeve is connected with the fixed handle; a screw hole is formed at the bottom of the fixed handle; the adjusting screw rod passes through the screw hole and is contacted with the lower lateral face of the movable handle; the adjusting screw rod pushes the movable handle to rotate with a pin roll, and the core rod is driven to displace, so that adjustment of injection amount is realized; a slotted hole is formed in the middle of the upper end of the movable handle along the axial direction of the core rod; the movable handle is sleeved on the core rod; a core rod catch, a gasket and a spring are sleeved on the core rod close to protruded cambered surfaces of the front and rear parts of the movable handle; and when the movable handle drives the core rod to move front and back, the movable handle can freely and slightly float up and down relative to the core rod, the core rod is prevented from generating friction, and axial movement of the core rod is not influenced. The adjustable continuous injector has the advantages of reasonable structure, accurate quantitation, convenience in adjustment, reliability in operation, good stability of injection quantity control and long service life.

The invention relates to a steel-sleeve steel steam insulation pipe and a rolling supporting mechanism thereof, wherein the nominal diameter of an inner sleeve steel pipe of the steel-sleeve steel steam insulation pipe is DN 150-DN 200. The rolling supporting mechanism comprises an upper steel hoop, a lower steel hoop, one upper idler wheel arranged at the right center of the upper steel hoop, andtwo lower idler wheels arranged on the lower steel hoop and distributed symmetrically, wherein the end parts of the upper steel hoop and the lower steel hoop are clamped tightly by bolts; and when the axes of the inner sleeve steel pipe and an outer sleeve steel pipe are overlapped, the two lower idler wheels and the inner wall of the outer sleeve steel pipe are contacted in a rolling friction way, and a fit-up gap is left between the upper idler wheel and the inner wall of the outer sleeve steel pipe. The steel-sleeve steel steam insulation pipe comprises the inner sleeve steel pipe and theouter inner sleeve steel pipe, and also comprises the rolling supporting mechanism, insulation material, heat-preservation material, an air evaporation valve and erosion resistant coating. The rollingsupporting mechanism has small friction force, therefore, the stress of the rolling supporting mechanism and the inner sleeve steel pipe is reduced.

The invention relates to the technical field of electric tools, in particular to a handheld electric cutting tool which is used for cutting a pipe and comprises a shell, a handle and a handle. The cutter feeding device is rotatably mounted in the shell; a clamping position is arranged in the cutter feeding device, and a cutting knife is arranged on the peripheral side of the clamping position; when the feeding device rotates, the cutting knife executes a cutting action; and the driving device is used for providing power for the execution device. The driving device is used for driving the cutter feeding device to work, cutter feeding is achieved, cutting force is generated, pipes are cut, and the problems that in the prior art, due to the fact that the elastic force of an elastic piece is limited, the cutting force is small, high-hardness and thick pipes cannot be cut, and use is inconvenient are solved.

The invention discloses a cleaning spraying head assembly and a self-cleaning bathtub. The cleaning spraying head assembly comprises a support, a spraying head and a rotating driving assembly, whereinthe support is provided with a water inlet channel, and the spraying head is installed on the support and communicates with the water inlet channel. The cleaning spraying head assembly is characterized in that a first spraying hole and a second spraying hole are formed in the water outlet end of the spraying head, and the rotating driving assembly is connected with and drives the spraying head torotate within a certain angle range so as to output a double-layer sector-shaped cleaning water curtain. The cleaning spraying head assembly and the self-cleaning bathtub are small in assembly number, simple in structure, large in cleaning area and good in cleaning effect.

The invention provides a leveling device, a washing machine with the leveling device and a control method of the washing machine with the leveling device. The leveling device is used for supporting and leveling of a household appliance and comprises adjusting bottom feet; the adjusting bottom feet comprise fixed parts, movable adjusting parts and phase-change material media, wherein the fixed parts are arranged at the bottom of the household appliance, the movable adjusting parts sleeve the fixed parts and can move axially relative to the fixed parts, containing cavities are formed between themovable adjusting parts and the fixed parts, and the phase-change material media are arranged in the containing cavities; at least two adjusting bottom feet communicate with each other through a communicating device, wherein at least one adjusting bottom foot and/or the communicating devices are provided with heating devices correspondingly; the heating devices are used for heating the phase-change material media, the phase-change material media are converted into liquid, and the liquid flows among the adjusting bottom feet and drives the movable adjusting parts to move axially so as to carryout leveling under the action of pressure; and when the heating devices stop heating, the phase-change material media are converted into solid, and the rigid support in a leveling state is kept.

The invention discloses a rotary button lock. The rotary button lock comprises a lock bracket, a driving piece, a swing arm, a sliding block, a support and a pressing head, wherein the driving piece,the swing arm, the sliding block, the support and the pressing head are arranged on the lock bracket, a driving insertion hole is formed in one side of the lock bracket, a sliding groove is formed inthe other side of the lock bracket, the driving piece is sleeved with the driving insertion hole, the sliding block is installed in the sliding groove, one end of the swing arm is connected with the driving piece, the other one end of the swing arm is connected with one end of the sliding block, the support is in a bent shape, one end of the support is hinged to the lock bracket, guide grooves areformed in the middle of the support, the other end of the support is connected with the pressing head, a shifting pin is arranged at the other end of the sliding block, the end part of the shifting pin extends into the guide groove, the driving piece comprises a shaft shell and an ejector rod, the shaft shell is sleeved with the driving insertion hole, a through groove is formed in the shaft shell, and a limiting clamping block is arranged on the ejector rod. The rotary button lock is simple in structure, small in size, light in weight, convenient to install and rapid and reliable in unlocking and locking operation, no protruding structure exists on the surface of a covering cap after installation, and the better aerodynamic configuration of an aircraft is guaranteed.

The invention discloses a rotary waterproof button lock. The rotary waterproof button lock comprises a lock seat, a driving assembly, a swing arm, a sliding block, a support and a pressing head, wherein the driving assembly comprises a shaft shell and an ejector rod; the shaft shell is sleeved with a driving insertion hole; a through groove is formed in the shaft shell; a pin shaft is arranged onthe ejector rod and extends into the through groove; a spring is arranged in the portion, below the pin shaft, of the ejector rod; a locking groove matched with the end of the pin shaft is formed in the lock seat; the sliding block is installed in a sliding groove; the swing arm is connected with the shaft shell and hinged to the sliding block through a connecting rod; the support is bent; one endof the support is hinged to the lock seat, a guide groove is formed in the middle of the support, and the other end of the support is connected with the pressing head; a shifting pin is arranged on the sliding block and extends into the guide groove; and a sliding supporting face used for guiding the sliding block is arranged in the lock seat. The rotary waterproof button lock is simple in structure, small in size, low in weight and convenient to install, unlocking and locking operation is rapid and reliable, no protruding structure exists on the surface of an opening cover after installation, and the good aerodynamic configuration of an airplane is guaranteed.

The invention provides hydraulic lifting bottom legs, a washing machine with the bottom legs and a control method of the washing machine. The hydraulic lifting bottom legs include hydraulic bottom legbodies, a communicating device and a liquid storage device. The hydraulic bottom leg bodies include a fixing part and a movable adjusting part, wherein the fixing part is installed on the bottom of ahousehold appliance, and the movable adjusting part sleeves the fixing part and can relatively move in the axial direction. A containing cavity for containing a hydraulic medium is formed between thefixing part and the movable adjusting part; at least two hydraulic bottom leg bodies and the liquid storage device are communicated with each other through the communicating device. Along with the changes of pressure, the hydraulic medium flows among the hydraulic bottom leg bodies and drive the movable adjusting part to move axially under the action of pressure for levelling. The hydraulic medium is injected into/ sucked out of the hydraulic bottom leg bodies through the liquid storage device, and lifting adjustment of the hydraulic bottom legs is controlled. The hydraulic lifting bottom legs are particularly applicable to a roller washing machine, the supporting height of the hydraulic bottom leg bodies is increased by means of the liquid storage device in order to lift an opening of adoor body, and therefore the water level is lower than the opening of the door body so that the door body can be opened for adding clothes during running of the washing machine.

The invention provides a leveling device of a household appliance and a washing machine with the same. The leveling device comprises hydraulic bottom legs; each hydraulic bottom leg comprises a fixingpart, a movable adjusting part and a containing cavity; and for each hydraulic bottom leg, the movable adjusting part sleeves the outer side of the fixing part and can move axially relative to the fixing part, the containing cavity for containing a hydraulic medium is formed between the fixing part and the movable adjusting part, and along with the change of the pressure, the hydraulic medium drives the movable adjusting part to axially move along the exterior of a protective sleeve to carry out leveling. According to the leveling device, when the hydraulic bottom legs are fixed on a bottom plate of the household appliance, the movable adjusting part capable of moving up and down sleeves the outer side of the fixing part so that the transverse size of the movable adjusting part can be increased, the contact area between the movable adjusting part and a supporting surface is effectively increased, and the supporting stability of the leveling device on the household appliance is improved.

The invention relates to a steel sheathed steel steam heat preserving pipeline with the nominal diameter of an inner sheathed steel pipe below DN125 and a sliding support mechanism thereof. The mechanism comprises an upper steel hoop, a lower steel hoop, an upper sliding support plate and two lower sliding support plates, wherein the upper sliding support plate is positioned in the center of the upper steel hoop, and the two lower sliding support plates are symmetrically distributed on the lower steel hoop; when the inner sheathed steel pipe is displaced along an axis in an outer sheathed steel pipe, the lower sliding support plates are in contact with the inner wall of an outer steel sheath in a sliding friction way, and an assembly clearance is arranged between the upper sliding support plate and the inner wall of the outer steel sheath. The steel sheathed steel steam heat preserving pipeline comprises the inner sheathed steel pipe, the outer sheathed steel pipe, the sliding support mechanism, heat insulating materials, heat preserving material and a corrosion preventing layer, wherein the corrosion preventing layer is sleeved outside the outer sheathed steel pipe. The invention is just provided with the three sliding support plates and has quite simple process and low cost.

The invention provides a bottom foot for a household electrical appliance and the household electrical appliance. The bottom foot for the household electrical appliance comprises a hydraulic plate, asheath, an adjusting foot, hydraulic medium and a communicating device, wherein the sheath is fixedly connected with the hydraulic plate; the adjusting foot is arranged in the sheath and can move axially relative to the adjusting foot; a containing cavity is formed among the hydraulic plate, the sheath and the adjusting foot; the hydraulic medium is arranged in the containing cavity, and the hydraulic medium is compressed along with the change of the pressure and the adjusting foot is expanded to drive the adjusting foot to axially move in the sheath to be leveled; the communicating device communicates with bottom feet of at least two household electric appliances to achieve the circulation of the hydraulic medium in the bottom feet of the household electric appliances; and a throttling structure used for relieving the flow velocity of the hydraulic medium is arranged in the communicating device. According to the bottom foot for the household electrical appliance, the throttling structure is arranged in the communicating device, so that the rapid flowing of the hydraulic medium is avoided, and the adjusting process is more stable; and in addition, the throttling structure can havea good buffering function under the condition that the pressure change of the bottom foot of the household electrical appliance is large.

The invention relates to a drainage device of a steel-sleeve steel steam insulation pipe, which comprises a section of inner sleeve steel pipe, a section of outer sleeve steel pipe, insulation material, a supporting mechanism, a header tank inner sleeve, an outlet entrance, a header tank outer sleeve, insulation material, a discharge opening arranged at the bottom of the header tank inner sleeve,another discharge opening arranged at the matched header tank outer sleeve, and erosion resistant coating sleeved outside the outer sleeve steel pipe and at the outer part and at the bottom of the header tank outer sleeve, wherein water in the discharge openings is discharged in a discharge well by an external pipe. The invention avoids digging a hole at the lower side of the inner sleeve steel pipe, simplifies the welding technology and also ensures the strength of the inner sleeve steel pipe.

The invention relates to the technical field of electric tools, in particular to an anti-idling device of a handheld electric cutting tool, which comprises a cutting seat, a roller seat and a cutter seat are mounted in the cutting seat, a roller is mounted on the roller seat, and a cutter is mounted on the cutter seat; a clamping position is formed between the roller and the cutting knife; the guide rod is movably mounted in the cutting seat, and the roller seat or the tool apron is connected to the guide rod; the sensor is mounted outside the cutting seat and is used for sensing the guide rod; and when the pipe enters the clamping position, the roller seat or the tool apron is opened to move, so that the end part of the guide rod is far away from the sensor. When the pipe enters the clamping position, the roller seat is opened to move, so that the end part of the guide rod is far away from the sensor, and therefore, the equipment can work normally, and the problems of equipment damage, electric quantity waste and influence on the service life caused by idling in the prior art are solved.

The invention discloses a stepless latching mechanism for a press slider and belongs to the field of press slider locking devices. The stepless latching mechanism can lock any portion of a latching rod to achieve stepless self-locking of the press slider. The stepless latching mechanism for the press slider comprises a shell, wherein the latching rod used for being connected with the press slider is arranged in the shell, at least two clamping blocks are arranged on the periphery of the latching rod at intervals, wedge blocks located on the outer sides of the at least two clamping blocks and extrusion pieces controlling the corresponding wedge blocks to move in an axial direction of the latching rod are arranged in the shell, and the wedge blocks control the at least two clamping blocks to clamp or loosen the latching rod when sliding in the axial direction of the latching rod. For the stepless latching mechanism, the wedge blocks are controlled to ascend and descend by controlling ascending and descending of the extrusion pieces, and stepless self-locking of the press slider is achieved.