82results 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.

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 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.

A direction restricting device, for the inner and outer tubes of a bicycle seat post, includes at least one axial groove arranged on the wall of one of the tubes, and a direction restricting element fastened to the other tube at the position relative to the axial groove wall. The direction restricting element may be inserted into the axial groove and at least includes an elastic slider provided with an axial opening in the middle. The direction restricting element may be inserted into the axial groove to enable the axial outer walls of the direction restricting element to engage with the axial inner walls of the axial groove to eliminate the interspace between the slider and the axial groove to prevent deflection and wobbling and to reinforce the steadiness of both tubes when the inner and outer tubes rotate relative to each other.

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.

The invention discloses a steel coil transfer self-locking lifting appliance. The steel coil transfer self-locking lifting appliance comprises a mounting sliding plate, an adjusting sliding groove is formed in the mounting sliding plate, a sliding limiting plate is slidably connected into the adjusting sliding groove, a clamping limiting mechanism is arranged on the sliding limiting plate, a top limiting plate is welded to the top of the sliding limiting plate, a lifting mounting block is inserted into the upper surface of the top limiting plate, a lifting ring is fixedly connected to the top of the lifting mounting block, a lifting block is inserted into the top of the sliding limiting plate, a T-shaped slot is formed in the position, corresponding to the lifting block, of the top limiting plate, one end of the lifting block is inserted into the T-shaped slot, and the top of the lifting block is fixedly connected with the lower surface of the lifting mounting block; and a clamping groove is welded to the lower surface of the sliding limiting plate. According to the steel coil transfer self-locking lifting appliance, through cooperative arrangement of the adjusting sliding groove, the sliding limiting plate, the clamping limiting mechanism and a locking inserting groove, steel coils with different sizes and specifications can be effectively clamped and fixed in the using process, and the using range is greatly widened.

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 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.