34results about How to "Limit relative rotation" patented technology

The invention relates to an orthopaedic robot guide needle positioner, a navigation unit and a positioning system. The orthopaedic robot guide needle positioner comprises a curved guide positioning device. The curved guide positioning device comprises a connecting rod and a support which are mutually connected, a sliding sleeve capable of sliding along the axis of the connecting rod is arranged on the connecting rod, a sleeve fixing structure is arranged on the support, a guide sleeve used for guiding a guide needle is fixedly disposed through the sleeve fixing structure, and the axis of the guide sleeve forms an angle ranging from 15 to 75 degrees with the axis of the connecting rod after the guide sleeve is disposed. By the arrangement of the curved guide positioning device, the guide needle for cooperation can be greatly shortened and is enabled to be far away from a mechanical arm of an orthopaedic robot, interference of the C-shaped arm and the guide needle is removed, and requirements on operation can be well met.

The invention discloses a welding platform for an anti-theft window. The welding platform comprises a frame body and a platform plate. The top of the frame body is fixedly provided with the platform plate in a welded mode. A front-rear positioning device is fixedly arranged on the lower side of the platform plate, and a left-right positioning device is arranged on the upper portion of the platformplate. An even positioning device is arranged on the lower portion of the platform plate, and a tool box is fixedly arranged on the right side of the middle of the frame body. An electrical box is fixedly arranged on the left side of the middle of the frame body, and travelling wheels are connected to and arranged at the bottom of the frame body through bolts. During using, rods of the anti-theftwindow are placed on the platform plate, thus it is ensured that a frame of the anti-theft window is mutually perpendicular through the front-rear positioning device and the left-right positioning device, and through the left-right positioning device and the left-right positioning device, handrails in the anti-theft window are evenly distributed; and the welding platform has the advantages of being simple in structure and convenient to use.

The invention provides a driving motor and an air conditioner indoor unit. The driving motor comprises a motor body and a motor shaft cap. The motor body is provided with a motor shaft, which is cooperated with a shaft hole. The motor shaft cap is disposed on the end part of the motor shaft in a sleeved manner, and can be inserted in the shaft hole. The driving motor provided by the invention is advantageous in that by arranging the motor shaft cap on the end part of the motor shaft, when an air deflector is detached, a finger can only touch the motor shaft cap through an air deflector installation hole, and cannot touch the metal motor shaft, and therefore safety hidden troubles caused by the exposed metal motor shaft are effectively solved; the structure of the motor shaft cap is simple, the size of the motor shaft is small, and the production cost of the motor shaft is low, and when the driving motor is assembled with the air deflector, the motor shaft cap and the motor shaft are together inserted in the air deflector shaft hole, and therefore by using an original assembly structure, the normal assembly of the driving motor and the air deflector is guaranteed, and the safety problem of the driving motor is solved in a cost effective way, and a good market popularization prospect is provided.

The invention discloses a clamping mechanism for a collet chuck of a CNC lathe. The clamping mechanism is characterized in that a through groove is arranged in the middle of a tool bar and used for allowing a tool to pass through, and a conical locking groove is further arranged in the through groove in one end of the tool bar and used for locking the collet chuck; the collet chuck is sleeved with a clamping sleeve, the clamping sleeve is connected to a plurality of sets of telescopic rods through clamping components, and the other ends of the telescopic rods are fixedly embedded into the tool bar; the clamping force applied to the clamping sleeve by the clamping components can be absorbed by the clamping sleeve; and the collet chuck can be driven to move towards the tool bar through contraction of the telescopic rods, so that the tool located in the collet chuck is locked step by step, the collet chuck and the tool in the collet chuck are stressed more uniformly, the situation that the tool shakes in the machining process is reduced, and the problems that an existing clamping mechanism is generally of a nut structure, the collet chuck is locked on the tool bar through a nut, the clamping and fixing effect is common, and the uniform locking force on the tool cannot be guaranteed are solved.

The invention provides a locking connecting part. The locking connecting part comprises a bolt, a nut, a cylindrical tube and an insertion bar. The bolt is composed of a screw rod and a head which arefixedly connected. The screw rod is internally provided with a first cylindrical cavity. The first cylindrical cavity penetrates through the end face, far away from the head, of the screw rod. The insertion bar is mounted in the first cylindrical cavity and located on the central axis of the first cylindrical cavity. The central axis of the first cylindrical cavity coincides with the central axisof the screw rod. According to the locking connecting part, through cooperation of a short bar on the insertion bar located in the screw rod and a groove in the inner wall of the cylindrical tube inthe nut, the effect of preventing g the nut from getting loosened from the screw rod is achieved after the nut and the screw rod are screwed through threads. Moreover, the nut and the screw rod are connected through the normal thread structure, and application of the locking connecting part in any environment applicable to bolts can be guaranteed.

The invention discloses an easy-to-install rotary cultivator cutter shaft assembly comprising a shaft pipe. Two ends of the shaft pipe are provided with a pipe through hole; internal baffle blocks are evenly welded on the peripheral inner wall of the pipe through hole; thread holes are formed on the peripheral outer wall of the pipe through hole; an external ring sleeve and a fixing column are vertically welded in the center of the other side wall of a connection welding member; internal baffle grooves are evenly formed in the side wall of the fixing column; the internal baffle blocks are placed in the internal baffle grooves; and an end port of a bolt passes through the thread hole and extends to the through hole. A pipe orifice is right clamped in the annular groove, so weeds cannot enter a seam between the shaft head and the shaft pipe; weed winding can be avoided and service life of the cutter shaft can be prolonged; the shaft pipe is in a threaded connection with the shaft head; the structure can be conveniently assembled and disassembled and low manufacturing cost is achieved; a loose problem can be prevented; the internal baffle blocks are embedded into the internal baffle grooves; the rotary cutters are staggered, so soil-penetrating resistance of blades can be reduced; and the soil after the rotary cultivation cannot knot, so rotary cultivation effect can be greatly improved.

The invention relates to the technical field of locomotive safety and discloses a manual rearview mirror with trapezoidal teeth having a limiting function for a locomotive. The manual rearview mirrorwith the trapezoidal teeth having the limiting function for the locomotive comprises a rearview mirror body, the rearview mirror body comprises a lower mounting base and a stop rod, the stop rod and the lower mounting base are positioned by adopting the trapezoidal teeth, and the teeth are in surface contact, thereby limiting the relative rotation between the stop rod and the lower mounting base.The manual rearview mirror provided by the invention has the advantages that involute profile positioning is changed to trapezoidal tooth positioning, and the teeth are in surface contact, thereby limiting the relative rotation between the stop rod and the lower mounting base so as to ensure that the mirror body can not shake after being positioned; and when the position of the rearview mirror isadjusted, the stop rod is pressed to enable the teeth of the stop rod to be separated from the teeth of the lower mounting base, and then, the position of the mirror body can be adjusted randomly.

The invention discloses a garlic conveying device and a sowing machine. The garlic conveying device comprises a vertical section, an arc section and a horizontal section which are communicated with one another in sequence, wherein the vertical section comprises a conveying cylinder of which the cross section is oval, and a seed pressing block is cooperatively arranged in the conveying cylinder, cooperatively provided with a tension spring, and used for pushing garlic seeds in the conveying cylinder to the arc section under the effect of the tension spring; a seed putting port is formed in theend, close to the arc section, of the horizontal section, the arc section is cooperatively provided with a seed collecting claw, and the seed collecting claw is used for conveying the garlic seeds inthe conveying cylinder into the seed putting port. Through the arrangement of a pushing device, garlic can be planted in the way that bulbil faces upwards, and the backs have the same orientation. Theproblems in the prior art that garlic is manually planted with a squatting gesture, and therefore, the efficiency is low, and the work intensity is large are solved.

The invention discloses a seismic mitigation and isolation platform, and relates to the technical field of seismic isolation mechanisms. The seismic mitigation and isolation platform comprises a horizontal foundation. A placement bedplate is arranged in parallel right above the horizontal foundation, and at least three damping universal ball seismic isolation pieces which are not located on the same horizontal line are fixedly arranged on the horizontal foundation. A reset surface used for limiting the moving range of the placement bedplate is arranged on the placement bedplate, and ball bodies of the damping universal ball seismic isolation pieces abut against the reset surface. A limiting mechanism is arranged between the placement bedplate and the horizontal foundation and comprises a plurality of limiting assemblies, each limiting assembly comprises a connecting piece used for connecting the placement bedplate and the horizontal foundation, and the two ends of each connecting pieceare hinged to the placement bedplate and the horizontal foundation through an upper hinge shaft and a lower hinge shaft respectively. The distances between the axes of the lower hinge shafts and theaxes of the upper hinge shafts in the limiting assemblies can be synchronously adjusted. The seismic mitigation and isolation platform has an all-around damping effect on the articles placed on the placement bedplate in the horizontal plane.

The invention discloses an efficient micromolecular material sublimating and purifying inner pipe and a device. The efficient micromolecular material sublimating and purifying inner pipe comprises a sleeve, a sublimating inner pipe, a single-hole connecting pipe and a condensation inner pipe. The sublimating inner pipe, the single-hole connecting pipe and the condensation inner pipe are arranged in the sleeve, the sublimating inner pipe is located at the sealed end of the sleeve, the perforated end of the sleeve is connected with one end of the single-hole connecting pipe, and the other end ofthe single-hole connecting pipe is connected with the condensation inner pipe. According to the efficient micromolecular material sublimating and purifying inner pipe, the sleeve sleeves the sublimating inner pipe and the condensation inner pipe, the diffusion path of sublimating gas towards the normal temperature of an outer pipe is sealed, the problem of bidirectional diffusion is solved, and the sublimation productivity is improved. The sublimating inner pipe and the condensation inner pipe are connected through the single-hole connecting pipe, the clearance between the connecting faces issmall, it can be effectively avoided that a material is gasified to escape from the connecting clearance and is deposited on the inner wall of the outer pipe to cause waste, and the inner pipes can be prevented from being bonded. Multiple through holes equal in aperture are formed in the condensation inner pipe, the diffusion distance of the material is shortened, and the efficient micromolecularmaterial sublimating and purifying inner pipe can be suitable for purifying the material very likely to gasify. A collecting brush is arranged, and the material can be fast collected.

An object of the present invention is to provide a rotor of a rotating electrical machine capable of effectively preventing relative rotation of an end plate with respect to a rotor shaft while reducing the press-in load of a rotor yoke. A rotor (10) for a rotating electrical machine is provided with a rotor shaft (20), a rotor yoke (30), and first and second end plates (50, 60). The first end plate (50) is disposed between a plate fixing part (23) provided on the rotor shaft (20) and one end surface (30a) in the axial direction of the rotor yoke (30). The plate fixing part (23) is provided with an inclined surface (24); the inclined surface is inclined so that the outer diameter (D) becomes larger as the inclined surface is away from the end surface (30a) of the rotor yoke (30) in the press-fitting direction of the rotor yoke (30). The inner peripheral surface of the shaft insertion hole (51) of the first end plate (50) has an inner peripheral inclined surface (52) that is in contactwith the inclined surface (24) of the plate fixing part (23).

The invention relates to the field of building structures, in particular to an integral structure of a rural resettlement house, which comprises an industrial area and a living area which are built on the upper layer of the ground; the industrial area comprises a plurality of shops and garages; the plurality of shops are connected to form a semi-closed building with at least one opening in a surrounding mode; the garage is arranged in a space defined by the semi-closed building; the garage is connected with an opening; the living area comprises dwellings and greening areas; the dwellings are built on the upper layer of the shop; the greening areas are located between the adjacent dwellings; and the greening areas are arranged on the upper side of the garage. The invention aims to overcome the defects in the prior art, and provides the integral structure of the rural resettlement house, so that income creation of the building industry is realized, quality life is provided for villagers on the premise of guaranteeing the income of the villagers, and the courtyard plot of the villagers is met.

The invention relates to a shock absorber installation end cover assembly integrated with a nut. The shock absorber installation end cover assembly integrated with the nut comprises an end cover and flange nut; the end cover comprises two layer structures, i.e. a decoration board and an installation board; the decoration board and the installation board are grooved structures, the grooved structures are provided with outwards turned-over edges, and the centers of the bottoms of the groove structures are provided with a through hole; the flange nut is fixedly arranged in the center of the bottom of the installation board and the flange nut is communicated with the through hole of the installation board; the through hole of the installation board is provided with inner anti-rotating notches along the circumference, the inner anti-rotating notches are clamped with positioning bulge mechanisms on shock isolating rubber, the outer edge of the installation board is provided outer anti-rotating notches along the circumference, and the outer anti-rotating notches are matched with limiting characteristics of a car body metal sheet. By integrating the end cover and the installation nut in the technical scheme, the assembling steps are reduced; since an anti-rotating design is adopted and a reverse anti-rotating function is realized, the phenomena such as reduction of moment between a shock absorber system and a car body and falling can be avoided; since the circumferential diameter of a limiting mechanism is large, large torque is prevented from being applied to the shock absorber system.

The present application relates to a drying device and a drying process thereof, including a frame on which a plurality of drying cylinders are arranged to rotate horizontally. The drying cylinder includes two turntables, a first sleeve, a second sleeve, a water inlet pipe and a For the water outlet pipe, the two turntables are respectively rotatably installed on the frame, the two ends of the second sleeve are respectively installed on the two turntables, the first sleeve is coaxially sleeved on the second sleeve, and the two ends of the first sleeve are respectively installed on the two turntables. The ends are respectively installed on the two turntables, the water inlet pipe and the water outlet pipe are respectively connected on the two turntables, and both the water inlet pipe and the water outlet pipe are communicated with the first casing and the second casing. The present application has the effect of fully transferring the heat in the hot water to the first sleeve, reducing the amount of hot water required to heat the first sleeve, thereby improving the utilization rate of heat in the hot water, and saving resources.

The invention relates to the field of cards, in particular to an intelligent card capable of preventing a magnetic stripe from being worn, which comprises an intelligent card body, a sliding block and a protection block, a magnetic strip is fixedly arranged on the intelligent card body, a sliding groove is formed in the sliding block, the intelligent card body penetrates through the sliding groove, the sliding block is in sliding fit with the intelligent card body, the protection block is rotationally connected with the sliding block, a first magnet is fixedly arranged on the side wall, facing the intelligent card body, of the protection block, a second magnet is fixedly arranged on the side wall, facing the protection block, of the intelligent card body, and the first magnet and the second magnet attract each other. The magnetic strip can be prevented from being abraded under the action of external force.

The invention relates to a welding machine plug. The welding machine plug of the present invention comprises an outer sleeve shell, a conductive assembly, a guide plugging structure and an identification assembly; the conductive assembly can be arranged in the outer sleeve shell in a penetrating manner; the guide plugging structure is arranged between the outer sleeve shell and the conductive assembly; the guiding plugging structure can guide the conductive assembly to penetrate through the outer sleeve shell and can limit relative rotation of the conductive assembly and the outer sleeve shell; the identification assembly is arranged on the outer sleeve shell to identify the plugging position of the conductive assembly relative to the outer sleeve shell; and when a user assembles the conductive assembly and the outer sleeve shell, a user can move the conductive assembly to a proper position relative to the outer sleeve shell according to the prompt of the plugging position identified by the identification assembly, so that the guide plugging structure between the outer sleeve shell and the conductive assembly can guide the conductive assembly to penetrate through the outer sleeve shell, assembly is simpler and more convenient, production efficiency is improved; and after the conductive assembly penetrates through the outer sleeve shell, the guide plugging structure can limit relative rotation of the conductive assembly and the outer sleeve shell, so that the connection is firm.

The invention discloses a wire clamp which comprises clamp body and further comprises rivets, wherein the clamp body comprises a ring-shaped clamping part; an opening is arranged on the clamping part;fastening platforms are correspondingly connected with two ends of the openings; tongue pressing sheets are stacked on and cling to the outer side surfaces of the fastening platforms; first through holes are formed in the tongue pressing sheets; concave notches are formed in the inner walls of the first through holes; second through holes being coaxial with the first through holes are formed in the parts, directly facing the first through holes, of the fastening platforms; the rivets are used for fixing the tongue pressing sheets with the fastening platforms, and comprise flanges and hollow cylinders; the hollow cylinders are perpendicularly fixed to the flanges and inserted into both the first through holes and the second through holes; materials of the outer walls of the hollow cylinders are embedded in the concave notches; the hollow cylinders are fixedly connected with the edges of the second through holes; and the surfaces, which do not fit the fastening platforms, of the tonguepressing sheets are tightly pressed by the flanges. By adoption of the wire clamp disclosed by the invention, the relative rotation of the tongue pressing sheets and the fastening platforms is restricted; the misplaced rotation phenomenon during the wire clamp fastening process is avoided; and furthermore, no welding operation is needed, the appearance is aesthetic, and the machining efficiency ishigh.

The invention discloses a multifunctional string lifting appliance, comprising a tie-back module, a torque-bearing module, a locking module and a lifting module connected with one another. The multifunctional string lifting appliance can apply hydraulic pressure on the ground to lift a downhole string at the premise of not moving a wellhead, the ground applied hydraulic pressure enables the downhole string to descend, torque is transmitted in the whole course, an elongation state is locked during tripping-in, and the ground applied hydraulic pressure is unlocked after the string is descended in place. The multifunctional string lifting appliance is applicable to clean-up of injection wells.

The invention relates to a two-way disengagement prevention sealed pipe connecting structure. The structure comprises at least two pipes, wherein one pipe is connected with a first insertion port section, and the other pipe is connected with a second insertion port section. The structure further comprises a tubular connector can be arranged on the peripheries of the first insertion port section and the second insertion port section in a sleeving manner and is used for connecting the first insertion port section and the second insertion port section, a limiting inner flange is arranged in the tubular connector, and a first matching groove and a second matching groove are formed in an inner cavity of the tubular connector. A sealing ring and a disengagement prevention piece are arranged between the first insertion port section and the first matching groove, and another sealing ring and another disengagement prevention piece are arranged between the second insertion port section and the second matching groove. According to the bidirectional anti-falling sealed pipe connecting structure, the first insertion port section and the second insertion port section of the two pipes are connected through the tubular connector, sealing and disengagement prevention are conducted through the two sealing rings and the disengagement prevention pieces, the overall connection operation is easy and quick to carry out, the manufacturing cost is low, it can be effectively avoided that the sealing rings drive the pipes to axially rebound, the sealing effect is guaranteed, even if geologic settlement happens later, disengagement will not happen, and the service life is long.

The invention provides a sacroiliac joint fusion cage, a holding device of the sacroiliac joint fusion cage and an implantation channel setting tool of the sacroiliac joint fusion cage. The fusion cage body comprises a bone grafting cylinder and two anti-torsion cylinders; a bone grafting cavity is formed in the bone grafting cylinder, a plurality of bone grafting holes are formed in the outer side surface of the bone grafting cylinder, and each bone grafting hole is communicated with the bone grafting cavity; the two anti-torsion cylinders are oppositely arranged on the outer side face of the bone grafting cylinder, and each anti-torsion cylinder is provided with an axial channel; the front end of each anti-torsion cylinder is provided with an opening head; a notch part is arranged on the outer side surface of each expanding head and faces the bone grafting cylinder; the notch part extends to the rear end of the opening head; a sunken groove is formed in the outer side face of each expanding head in the circumferential direction of the outer side face of the expanding head, and the sunken grooves are located in the connecting positions of the expanding heads and the anti-torque cylinder; each screw is used for penetrating into the corresponding axial channel. According to the sacroiliac joint fusion cage, the number of implants is small, and the surgical operation steps are simple.

The invention provides a rotor, a motor, a water pump and a vehicle. The rotor comprises a rotor iron core, permanent magnets and a plastic coating body; a shaft hole for accommodating a rotating shaft and mounting grooves for mounting the permanent magnets are formed in the rotor iron core; the permanent magnets are mounted in the mounting grooves; the plastic coating body is connected with the rotor iron core and at least covers the opening ends of the mounting grooves so as to package the permanent magnets in the rotor iron core; and at least one end of the plastic coating body is provided with an axial extension part, and the radial inner end of the axial extension part is flush with the inner side surface of the rotor iron core. According to the rotor provided by the invention, the axial extension part is arranged, so that the axial distance between the rotor iron core and external gas or liquid is increased, the external gas or liquid can be effectively prevented from being in contact with the rotor iron core and even entering the rotor iron core through a gap between the shell and the rotating shaft, the rotor iron core is prevented from being corroded, a rust-proof effect can be realized, and meanwhile, liquid pollution can be prevented.

The invention provides an automatically-controlled anti-theft intelligent valve. The automatically-controlled anti-theft intelligent valve comprises a shell, an actuator and a valve body; a connecting seat is arranged on the shell, a positioning groove is formed in the end part of the connecting seat, and a connecting cap is rotationally arranged outside the connecting seat; a mounting seat is arranged on the valve body, and a positioning seat is arranged at the end part of the mounting seat; and the connecting cap comprises an inner core and an outer sleeve, a limiting groove is formed in the outer wall of the inner core, an annular electromagnet is arranged in the inner core, a power source is arranged at the end of the inner core, a containing groove is formed in the inner wall of the outer sleeve, a spring is arranged in the containing groove, a sliding block is arranged at the end of the spring, and limiting teeth are arranged at the end of the sliding block. The power source is disconnected from the annular electromagnet, the spring can pull the sliding block into the containing groove, the limiting teeth are separated from the limiting groove, and then the connecting cap and the mounting seat cannot be separated even if the outer sleeve is rotated, so that the safety of the intelligent valve is improved; and the shell and the actuator are not prone to being stolen, so that normal use of the intelligent valve is not prone to being affected.