38results about How to "Small movement gap" patented technology

The invention discloses a special automobile rubber grinding machine for a rubber covered roller. The special automobile rubber grinding machine comprises a lathe head and a lathe bed which are sequentially connected, wherein the lathe head is provided with a headstock, the lathe bed is provided with a tailstock, and a workpiece is fixed between the headstock and the tailstock; the lathe bed below the workpiece is provided with a large planker, a sliding block and a gear are arranged on the large planker, the lathe bed is provided with a linear guide rail and a rack, the sliding block is matched with the linear guide rail, and the gear is matched with the rack; the large planker is provided with a premedial planker and a postmedial planker which can move on the large planker, the premedial planker is provided with a knife rest, and the postmedial planker is provided with a belt sanding machine. According to the special automobile rubber grinding machine, the firmness between a bonding agent and a central spindle can be guaranteed, a traditional sand blasting technology can be replaced, and the surface is not needed to be washed by any solvent, so that the balance of the central spindle can not be damaged, the production efficiency can be improved, the cost is reduced and the labor force is saved, and the key is that the bonding between the rubber and the central spindle can be reliably guaranteed. According to the special automobile rubber grinding machine, the consumable materials can be saved and the environment pollution can be reduced.

The invention relates to a folding screen terminal technology, and provides a folding screen terminal hinge length adjusting device and a folding screen terminal, the folding screen terminal hinge length adjusting device is arranged between a screen fixing plate and a hinge side plate of the folding screen terminal, and the adjusting device comprises a follower, a pushed part and a transmission part; the follower is arranged on a middle plate, the middle plate can rotate relative to the hinge side plate, the follower is provided with a pushing part, and the middle plate drives the follower tomove so as to drive the pushing part to move in the direction close to or far away from the pushed part; the pushed part comprises a pushed portion, the pushed portion corresponds to the pushing part,and the follower moves to drive the pushed part to move; the input end of the transmission part is in transmission connection with the pushed part, the output end of the transmission part is connected to the screen fixing plate, and the hinge side plate is driven to move in the direction close to or away from the screen fixing plate by moving and transmitting the pushed part to the transmission part.

The invention discloses a closed switch tube, comprising an insulator (310), a first conductor (320), a first support (330), a second conductor (340) and a third conductor (370). One end of the second electrical conductor (340) is disposed in the cavity formed by the insulator (310), the first electrical conductor (320) and the first support (330) and can be connected with the The first conductor (320) is contacted or separated, characterized in that the third conductor (370) is sleeved on the outside of the insulator (310) and is fixedly connected with the second conductor (340). A second elastic member (380) is arranged between the third electrical conductor (370) and the first support member (330), and the closed switch tube of the present invention is not affected by external force, and the internal conductive members are always in a constant state. Open state, can meet different applications.

The invention provides an engine speed regulating device which comprises a shifting fork, a pull rod, a rotating speed setting part, a speed regulating lever and a fixing frame, wherein the shifting fork is movably connected with the speed regulating lever; the shifting fork is provided with a ball head and an adjusting part; the ball head is hinged with the pull rod; the rotating speed setting part is movably connected with the fixing frame; the rotating speed setting part is provided with a rocker arm and a crank arm; the speed regulating lever comprises a first connecting part and a second connecting part; the first connecting part is connected with the adjusting part through a correction spring; the second connecting part is connected with the crank arm through a speed regulating spring; and the fixing frame is fixedly connected with the engine. The engine speed regulating device has full-range speed regulating and two-pole speed regulating functions, simple structure, fewer parts and small movement clearance, and the phenomenon of response lag of the speed regulating device can be eliminated; and due to multiple stamping parts, die castings and standard parts, the engine speed regulating device is convenient for mass production.

The invention discloses a small-scale high-pressure centrifugal blower. The small-scale high-pressure centrifugal blower comprises a main shaft, a gas inlet housing, a turbine, an exhaust housing, a spiral housing, a vane wheel and a side cover, wherein the gas inlet housing, the turbine, the exhaust housing, the spiral housing, the vane wheel and the side cover are sequentially arranged on the main shaft; the turbine is located in a shell formed by the gas inlet housing and the exhaust housing, and the moving gap between the turbine and the side wall of the shell is smaller than 0.5mm; and the spiral housing is a high-flow velocity type spiral housing, and is used for converting high-temperature gas from the exhaust housing into a volute flow type high-pressure gas to be supplied to the vane wheel. According to the small-scale high-pressure centrifugal blower disclosed by the invention, part of the advantages of an annular blower are applied to the vane wheel and the spiral housing, so that the comprehensive performance of the small-scale high-pressure centrifugal blower is far better than that of a secondary annular blower having many defects, and the outlet pressure can achieve 60kPa; the design of the structure of the small-scale high-pressure centrifugal blower is adopted, so that the blower can be safely operated for a long time.

The invention discloses a closed switch tube, which comprises an insulator (310), a first conductor (320), a first support member (330), a second conductor (340) and a third conductor (370), and is characterized in that one end of the second conductor (340) is arranged in a cavity formed by the insulator (310), the first conductor (320) and the first support member (330) and can be in contact with or separated from the first conductor (320), the closed switch tube is characterized in that the third electric conductor (370) is arranged outside the insulator (310) in a sleeving mode and fixedly connected with the second electric conductor (340), and a second elastic piece (380) is arranged between the third electric conductor (370) and the first support member (330). According to the closed switch tube, under the condition that no external force is applied, the internal conductive pieces are at a normal open state, and different application occasions can be met.