83results about How to "Avoid wobbling" patented technology

An arbor for quick change and standard hole cutters, wherein each hole cutter includes a central aperture and at least one drive pin aperture. The arbor comprises an arbor body including an end portion engageable within the central aperture, a drive shank opposite the end portion for engaging a power tool, and an aperture for receiving a pilot bit. The arbor further comprises a drive pin plate and / or collar having at least one drive pin receivable in a corresponding drive pin aperture of the hole saw for drivingly engaging the hole saw. The arbor, in at least one embodiment, further comprises a pilot bit mechanism for engaging and releasing a quick change or standard pilot bit.

A drive device is assembled with a fitting outer wall of a heat sink and a fitting inner wall of a frame combined by an interference fit. The drive device allows for a sufficient assembly accuracy of coaxiality, and may prevent a pulsation of motor torque and a vibration sound caused by a tilt of a shaft. Further, heat conductivity at a contacting portion is improved for heat dissipation from an electronic element in a controller section via the heat sink, the frame, and a bottom plate.

In a lever device for a hydraulic operation where hydraulic pressure is generated in a master cylinder by rotation of a lever, to make invariable an operation of a pushrod, which operates a piston of the master cylinder by being pushed at one end thereof by an adjuster of the lever, irrespectively of an adjustment of the adjuster. The lever is supported by a rotational shaft to be rotatable around the rotational shaft relative to the master cylinder, while a knocker member separate from the lever is supported to be coaxially rotatable. A knocker portion of the knocker member receives an end of the pushrod, which operates the piston. A positional relationship between the pushrod and the knocker portion is made invariable irrespectively of a change in a distance between the adjuster and the knocker portion by an adjustment of the adjuster.

This invention provides a novel compact electronic device support that allows articulation for ideal positioning, aiming or viewing. It is compact, readily stored and quick to set up. Frictional and magnetic forces prevent rotational twisting and wobbling without mechanical parts. In one embodiment the system describes a ball and socket joint. In an alternate embodiment, the head of the threaded fastener is cup-shaped and the base support has a raised hemispherical pivot. In a further alternate embodiment, the base and the clip-on support together form a fob for a key-ring. The removable support can be connected to an electronic device and then connected to magnetic cup formed into the base for a ball and socket joint. In an additional alternate embodiment, the base support has a post having a geometric shape that inserts into a conforming threaded adapter that is removably attached into the electronic device's conventional tripod socket.

One embodiment of a system for receiving wind and converting it to storable power, includes a wind capturing apparatus, including a least three sails, the least three sails having a shape, oriented to have an axis of rotation perpendicular to a surface on which the system is positioned, wherein the wind capturing device captures induced wind; an axle, in communication with wind capturing apparatus such that it receives rotational energy when the wind capturing apparatus rotates about the axis of rotation; and a generating unit, the generating unit receiving rotational energy from the axle and transforming it into storable energy.

The invention provides a slide rail mechanism. The slide rail mechanism comprises first slide rail assemblies and second slide rail assemblies which are arranged oppositely, and a synchronizing mechanism, wherein each slide rail assembly comprises an upper rail, a middle rail and a lower rail which are in sliding fit with one another; the synchronizing mechanism is used for keeping the first slide rail assemblies and the second slide rail assemblies move synchronously; the synchronizing mechanism comprises steering parts, fixing parts and tensioning parts arranged on the two groups of slide rail assemblies; the tensioning parts are wound between the fixing parts of the two groups of slide rail assemblies through the steering parts; the steering parts comprise front steering parts and back steering parts fixed at the front and back ends of each middle rail respectively; the synchronizing mechanism further comprises a tension sleeve arranged between the two back steering parts; the lengths of the tensioning parts between the two back steering parts are greater than the distance between the two back steering parts; portions, which are positioned between the two back steering parts, of the tensioning parts are inserted into the tensioning sleeve; other portions, which are positioned outside the tensioning sleeve, of the tensioning parts are always in tensioned states, so that the two groups of slide rail assembles move synchronously.

An arbor for quick change and standard hole cutters, wherein each hole cutter includes a central aperture and at least one drive pin aperture. The arbor comprises an arbor body including an end portion engageable within the central aperture, a drive shank opposite the end portion for engaging a power tool, and an aperture for receiving a pilot bit. The arbor further comprises a drive pin plate and / or collar having at least one drive pin receivable in a corresponding drive pin aperture of the hole saw for drivingly engaging the hole saw. The arbor, in at least one embodiment, further comprises a pilot bit mechanism for engaging and releasing a quick change or standard pilot bit.

A portable elbow support having a hanger portion, a horizontal stabilizing portion, a vertical stabilizing portion, a support platform, and an elbow receiving portion that is coupled to the support platform.

A slide mechanism (20) includes a rear cover (22), a front cover (24) slidably connected to the rear cover, and at least two magnetic members positioned on the rear cover and the front cover respectively. The front cover can be opened / closed relative to the rear cover semi-automatically via a magnetic force created by the at least two magnetic members. One of the front cover and the rear cover forms at least one protruding portion, and the other one of the front cover and the rear cover defines at least one recessed portion for engaging with the protruding portion. When the front cover is slid to an opened or closed position, the at least one protruding portion engages in the at least one recessed portion correspondingly.

The invention provides a slide rail mechanism. The slide rail mechanism comprises first slide rail assemblies and second slide rail assemblies which are arranged oppositely, a synchronizing mechanism and a motor assembly, wherein each slide rail assembly comprises an upper rail, a middle rail and a lower rail which are in sliding fit with one another; the synchronizing mechanism is used for driving the first slide rail assemblies and the second slide rail assemblies move synchronously; the synchronizing mechanism comprises steering parts arranged on the two groups of slide rail assemblies, fixing parts and tensioning parts; the tensioning parts are wound between the fixing parts of the two groups of slide rail assemblies through the steering parts; the motor assembly is provided with a first connecting portion and a second connecting portion for winding or releasing the tensioning parts; two portions, which are positioned on the front and back sides of the same fixing part, on the tensioning parts are connected to the first connecting portion and the second connecting portion respectively in a winding way; during working of the motor assembly, the tensioning parts are contracted through one of the first connecting portion and the second connecting portion, and the other releases the tensioning parts to move the tensioning parts, so that the middle rails and the upper rails ae driven to move through the fixing parts.

The invention relates to a live working R-type pin recover which comprises a base, a linkage rotary shaft, a pin removing head, a drive rod, an operation rod component and a tension spring, wherein one end of the base is provided with a rotary socket, and the other end is provided with a guide slot; the linkage rotary shaft is inserted in the rotary socket; the pin removing head is matched with the guide slot; one end of the drive rod is connected with the pin removing head, and the other end is connected with the linkage rotary shaft through a rotary shaft connection plate; the operation rodcomponent is in pivot joint with the linkage rotary shaft; and the tension spring connects the base and the operation rod component. The live working R-type pin remover has the outstanding substantive characteristics: the shape of the pin remover is changed, and the pin remover can be independently used to smoothly remove an R-type pin and replace an insulator in live working situations. By rotating the operation rod, an operation strut, the linkage rotary shaft, the rotary shaft connection plate and the drive rod can be sequentially driven to act so as to drive the pin removing head to pull out the R-type pin; and during pin removal, only the operation rod (made of insulator materials) needs to be operated, thereby ensuring that the pin remover is suitable for live working. In the process of removing the R-type pin, a matched insulator pin ball connecting rod can be used for clamping and positioning, and the swing of the insulator is avoided, thereby improving the smoothness of the removal work.

The invention discloses a novel infantry grenade system. The system mainly comprises a grenade body, a battle part, a fuse and a firing device, wherein a tail pipe of the rear part of the grenade body is inserted inside the grenade body through a grenade tail ring, a propellant powder column is arranged inside the tail pipe, and a piston is arranged behind the propellant powder column; a tail hoop is arranged on the tail part of the tail pipe, a stabilizer fin is arranged at the front part of the tail pipe, and the head part of the tail pipe is sharp; a safety protective cover is arranged at the front part of the manual start type trigger and delay dual-functional fuse in the grenade body; a directional ejector piston is arranged in front of a vertical support of the firing device; a tray plate on the upper part of the firing device is provided with a front connecting seat and a main connecting seat; and the main connecting seat is provided with a cantilever type direct sighting telescope. According to the novel infantry grenade system, an electronic firing mode is adopted, a battery shell is arranged behind the vertical support of the tray plate, a sliding power supply connecting switch which slides in a slide groove is arranged on the battery shell, the electronic firing device is arranged on the lower part of the battery shell, and a trigger button is arranged in the front part of the battery shell, and a finger protective baffle is arranged at the lower part of the vertical support. The novel infantry grenade system has the advantages of good concealment, multiple functions and does not occupies the system.

A hollow cylindrical pulley body 5 is carried rotatably by a hollow cylindrical shaft member 11. A support rod 8 is inserted in the shaft member 11, and the shaft member 11 is elastically supported to the support rod 8 through an elastic body 10. The elastic body 10 is provided within a quarter of the periphery of the support rod 8 that is located, when viewed along the axis of the shaft member 11, forward of the line of action of a radial shaft load on the shaft member 11 with respect to the direction of rotation of the pulley body 5. With this configuration, when the drive belt 3 deviates to one side, the pulley body 5 is immediately angularly moved so that it is inclined with a level difference with respect to the direction of the radial shaft load and is positioned obliquely relative to the drive belt 3. In this manner, a force of compensating for the deviation of the drive belt 3 is produced to avoid its wobbling.

The invention discloses a brake device or a pawl device used for acting between the inner surface of a shaft, a cage or a skip and the inner surface of a fixing and guiding component or a winch gallery or a lift shaft, and aims at providing a rope wheel brake which is simple in structure, high in safety and capable of closing a rope wheel according to other signals. According to the rope wheel brake, a PLC receives a signal of a sensor, makes a judgment and controls an electromagnet to enable the electromagnet to control a push rod and a connecting rod, and the effect of controlling idler wheels to move up and down is achieved. The distance between the lower end face of a boss and the circumferential face of a brake disc becomes smaller gradually, the brake disc radial direction component force of the pressure between the idler wheels on one side and the lower end face of the boss and the upper end face of the brake disc on the other side becomes larger gradually, the brake disc radial direction component force of the rotation force of the brake disc becomes larger gradually, the friction force becomes larger gradually, and the brake disc is braked. The effect of rope wheel braking is achieved through the contacted friction force between the brake disc and the rope wheel.

The invention belongs to the technology of the design of vacuum casting furnaces and relates to the improvement on a feeding mechanism for a vacuum casting furnace. The feeding mechanism comprises a feeding chamber [1] and a driving mechanism [2] and is characterized in that three or four guide mechanisms with the same structure are uniformly distributed around a material-grasping mechanism [3] along a circumference; and each guide mechanism consists of a guide rod [5], two connecting pieces [7] and two fixing rods [8]. The feeding mechanism has the advantages of preventing the material-grasping mechanism from wobbling and shaking in a feeding process, improving the coaxiality of a charge bar and a crucible, greatly improving the precision and stability of feeding, and avoiding major equipment accidents caused by splashing molten steel resulted from the dropping of the charge bar.

The invention provides a slide rail mechanism. The slide rail mechanism comprises first slide rail assemblies and second slide rail assemblies which are arranged oppositely, and a synchronizing mechanism, wherein each slide rail assembly comprises an upper rail, a middle rail and a lower rail which are in sliding fit with one another; the synchronizing mechanism is used for driving the first slide rail assemblies and the second slide rail assemblies to move synchronously; the synchronizing mechanism comprises front steering parts and back steering parts arranged at the front and back ends of each middle rail respectively, and fixing parts and tensioning parts arranged on the two groups of slide rail assemblies; the fixing parts comprise upper fixing parts arranged on the two upper rails respectively and lower fixing parts arranged on one lower rail; the tensioning parts form a loop between the fixing parts of the two groups of slide rail assemblies through the front steering parts and the back steering parts; during movement of the upper rails or the middle rails of the first slide rail assemblies, the tensioning parts are used for driving the upper rails or the middle rails of the second slide rail assemblies to move towards the same direction by the same distance through the fixing parts; the starting points and the end points of the tensioning parts extending on the loop are positioned on the same upper rail or the same lower rail of the slide rail assemblies.

A hollow cylindrical pulley body 5 is carried rotatably by a hollow cylindrical shaft member 11. A support rod 8 is inserted in the shaft member 11, and the shaft member 11 is elastically supported to the support rod 8 through an elastic body 10. The elastic body 10 is provided within a quarter of the periphery of the support rod 8 that is located, when viewed along the axis of the shaft member 11, forward of the line of action of a radial shaft load on the shaft member 11 with respect to the direction of rotation of the pulley body 5. With this configuration, when the drive belt 3 deviates to one side, the pulley body 5 is immediately angularly moved so that it is inclined with a level difference with respect to the direction of the radial shaft load and is positioned obliquely relative to the drive belt 3. In this manner, a force of compensating for the deviation of the drive belt 3 is produced to avoid its wobbling.

A self-adjusting furniture glide attachable to an article of furniture is described. The self-adjusting furniture glide comprises an outer shell comprising an upper portion and a lower portion, wherein the upper portion and the lower portion are joined together to form a hollow cavity and a center member disposed in the outer shell. The center member is seated in the outer shell above a cup-shaped cushion, and comprises a means capable of attaching the self-adjustable furniture guide to an article of furniture attached to a top surface of the center member. The center member is capable of vertical movement within the outer shell and the vertical movement of the center member in the outer shell compresses the cup-shaped cushion.

The invention provides a display device. The device comprises a visible carrying device, a driving mechanism, a collection device and a control system, wherein a plurality of display parts are arranged in the visible carrying device; the driving mechanism comprises at least one driving unit; each driving unit corresponds to a display part, and is used for driving the corresponding display part to move; the collection device is arranged on the visible carrying device, and is used for collecting profile information of a person or object near the visible carrying device and outputting the profile information; the control system is used for receiving the profile information and controlling the corresponding driving unit to move according to the profile information, so that the plurality of display parts corresponding to persons or objects show shapes related to the profiles of persons or objects. The display device enables the plurality of display parts corresponding to persons or objects to show the shapes related to profiles of persons or objects, and can sufficiently interact with persons or objects to motivate attention and passion of visitors or persons passing by, so that attention of the visitors and persons passing by can be effectively attracted.

The invention relates to the field of electric connectors, in particular to a cable-connecting radio-frequency coaxial connector. The cable-connecting radio-frequency coaxial connector comprises an outer conductor and an inner conductor assembled in the outer conductor via an insulator, wherein an insulated hard stop body is arranged in the outer conductor, and the hard stop body is located at the rear end of the inner conductor and is provided with a threading hole for a core wire of the coaxial cable to pass through. When the connector is connected with the corresponding coaxial cable, a shielding layer of the coaxial cable blocks the hard stop body from moving backwards in the outer conductor, and the hard stop body is abutted against the inner conductor and blocks the inner conductor from moving backwards in the outer conductor. Compared with the traditional cable-connecting radio-frequency coaxial connector, the cable-connecting radio-frequency coaxial connector provided by the invention can prevent the inner conductor from retracting backwards through the corresponding coaxial cable and the hard stop body in use, and the needle retraction problem that the traditional cable-connecting radio-frequency coaxial connector is solved.

The invention provides a three-gear manual screwdriver, belonging to the manual tool; the prior art has a defect that the original function is lost while realizing the positioning orientation function. The three-gear manual screwdriver achieves the conversion in three gears of a roller correspondingly to a handle and a workpiece by a gear-shifting part; when in a positive gear, the handle can be rotated to transmit the positive torque only towards the workpiece rod by a positive torque transmission roller; when in a reverse gear, the handle can be rotated to transmit the reverse torque only towards the workpiece rod by a reverse torque transmission roller; when in a bidirectional gear, the handle can be rotated to transmit the positive torque towards the workpiece rod by the positive torque transmission roller and also can transmit the reverse torque towards the workpiece rod by the reverse torque transmission roller, thus having both functions of oriented torque transmission and traditional bidirectional torque transmission.

The invention discloses an anti-swing device of a crane. The device comprises a supporting foot stand, a fixed bottom plate, a balance bottom plate, a fixed supporting arm, a telescopic arm and a siderotating foot rod. Butt joint clamping seats are fixedly mounted on the outer surfaces of the two sides of the fixed bottom plate. The supporting foot stand is fixedly mounted at the front part of the fixed bottom plate. The side rotating foot rod is movably installed on one side of the supporting foot stand. The outer surface of the side rotating foot rod is movably sleeved by a side rotating clamping rod. Inclined supporting feet are movably installed at the bottom of the side rotating foot rod. Spherical clamping grooves are formed in the middles of the inner sides of the inclined supporting feet. A ball clamping pin is fixedly installed on the outer surface of the lower end of the side rotating foot rod. The upper portion, fixedly close to the ball clamping pin, of the outer surface of the side rotating foot rod is movably sleeved by a fixing clamping sleeve. According to the crane anti-swing device, the crane anti-swing device is provided with an inclination angle adjusting structure, so that the stability of the crane anti-swing device is improved; meanwhile, the crane anti-swing device is provided with an inclination auxiliary fixing structure, so that the fixing operationis firmer, and the anti-swing effect of the crane anti-swing device is improved.

The invention provides a display device. The display device comprises a visible bearing device, a driving mechanism, an information acquisition unit and a control system, wherein the visible bearing device comprises a first reflection part and a second reflection part which are oppositely arranged; a plurality of display parts are arranged between the first reflection part and the second reflection part; a reflection surface of the first reflection part faces the display parts, and an observation surface of the first reflection part faces passing people or objects; a reflection surface of the second reflection part faces the display parts; the driving mechanism comprises at least one driving unit for driving the display parts to move; the information acquisition unit is arranged on the visible bearing device and is used for acquiring information of people or objects closing to the visible bearing device and outputting feedback information; and the control system is used for receiving feedback information and controlling the corresponding driving unit to move according to the feedback information. According to the display device, visitors or passing people can observe endless dynamic images of the display parts in the visible bearing device from the observation surface of the first reflection part and have an intense visual impact effect and deep impression.

The invention discloses an automatic buoy recycling and laying device which comprises a connecting frame used for connecting a floating plate and a plurality of stable oscillation stopping mechanisms, and the multiple stable oscillation stopping mechanisms used for preventing the floating plate from shaking and swinging in the floating plate recycling and laying process are installed at the bottom end of the connecting frame and connected with a buoy through the multiple stable oscillation stopping mechanisms. By designing a plurality of stable swing stopping mechanisms on the connecting frame, when the buoy is connected, recycled and laid, the buoy can be effectively prevented from shaking and swinging in the moving process, the buoy is prevented from colliding with personnel and equipment on a stern deck, and the influence on the connecting stability of the hook in the floating plate shaking process can also be avoided.

The invention provides a three-gear manual screwdriver, belonging to the manual tool; the prior art has a defect that the original function is lost while realizing the positioning orientation function. The three-gear manual screwdriver achieves the conversion in three gears of a roller correspondingly to a handle and a workpiece by a gear-shifting part; when in a positive gear, the handle can be rotated to transmit the positive torque only towards the workpiece rod by a positive torque transmission roller; when in a reverse gear, the handle can be rotated to transmit the reverse torque only towards the workpiece rod by a reverse torque transmission roller; when in a bidirectional gear, the handle can be rotated to transmit the positive torque towards the workpiece rod by the positive torque transmission roller and also can transmit the reverse torque towards the workpiece rod by the reverse torque transmission roller, thus having both functions of oriented torque transmission and traditional bidirectional torque transmission.

The invention discloses a friction pendulum array shock insulation layer with overall consistency of the curvature of slide grooves, relates to a shock insulation layer, in particular to a friction pendulum array shock insulation layer with overall consistency of the curvature of slide grooves, and belongs to the field of building. The friction pendulum array shock insulation layer solves the problem that the shock insulation effect of a traditional shock insulation structure is poor and comprises a plurality of integrated friction pendulum shock insulation supports, wherein the integrated friction pendulum shock insulation supports are uniformly distributed in a circular form, each integrated friction pendulum shock insulation support comprises a support slide groove and a support slide plate, the support slide plates are installed on support slide groove slide faces of the support slide grooves, and the support slide groove slide faces of the support slide grooves of the integrated friction pendulum shock insulation supports are located on the same curvature virtual faces.

The invention relates to a radio frequency coaxial connector and an application method thereof, and belongs to the technical field of electronic components. The radio frequency coaxial connector comprises a nut, wherein a lining is sleeved in the nut; a waterproof sealing ring is arranged between the nut and the lining; an outer shell is clamped on the periphery of the lining; a reverse tensile groove is arranged in the middle of the lining; a step is arranged at the tail end of the lining; and a first V-shaped groove and a second V-shaped groove are respectively processed on the middle and rear parts of the outer shell. According to the radio frequency coaxial connector, two V-shaped grooves are processed on the outer shell and are extruded by using an extruder, so that the conductors sleeved in the grooves can be tightly pressed and are prevented from swinging, and the reliability of the equipment is improved; and the reverse tensile groove is arranged on the lining, so that the tensile property of the connector is improved. Through the overall design, the radio frequency coaxial connector can be widely applied in the communication industry.