7results about How to "Won't rotate" patented technology

The utility model relates to a large-caliber electronic expansion valve applying a double-valve needle structure, which comprises a stator assembly and a valve seat assembly, the valve seat assembly comprises a valve seat component, a non-magnetic tube arranged at the upper end of the valve seat component and a magnetic rotor component arranged in the non-magnetic tube, and an outer valve needle and a valve needle spring are arranged in the valve seat component. A valve port is formed in the bottom of the valve seat assembly, one end of the outer valve needle is inserted into the valve port, a first inner cavity is formed in the outer valve needle, a valve port cover is installed at the lower end of the outer valve needle, a hole is formed in the bottom of the valve port cover, a side hole communicated with the hole is formed in the outer side wall of the valve port cover, a nut is slidably installed in the first inner cavity, and an inner valve element is installed at the lower end of the nut. A second inner cavity is formed in the lower portion of the inner valve element, an inner valve needle and a compression spring are installed in the second inner cavity, and the lower end of the magnetic rotor assembly is axially connected with the nut. When the opening degree is small and large, high-precision adjustment can be achieved, the energy-saving effect is obvious, installation is convenient, and the pressure balancing function is achieved.

The invention discloses a medium borosilicate glass cold start electric melting kiln, and relates to the technical field of cold start electric melting kilns, the medium borosilicate glass cold start electric melting kiln comprises an electric melting kiln main body, the top surface and the upper side of the inner wall of the electric melting kiln main body are respectively provided with an air suction groove and an air guide groove, and the lower side of the interior of the air suction groove is fixedly provided with a filter screen plate; a connecting cylinder is fixedly mounted at the center of the top surface of the filter screen plate, a rotating mechanism is arranged on the inner wall of the connecting cylinder, a sealing cover is fixedly mounted on the upper side of the inner wall of the air suction groove through bolts, and a limiting ring is fixedly connected to the lower side of the inner wall of the air guide groove. Through the elastic force of the extrusion springs, the pressure relief effect can be guaranteed when the pressure in the electric melting kiln body is too high, air flow is used for driving the fan blades to rotate while pressure relief is conducted, then the filter screen plate is cleaned through the brush plate, the problem that the filter structure is blocked by particles is solved, and the service life of the electric melting kiln is prolonged. And the quality and the use safety of borosilicate glass in the processing process of the device are ensured.

The utility model discloses a cable tension detection device, including work table, the one side of work table is installed with mounting bracket through moving mechanism, the inner wall of mounting bracket is installed with pressure sensor through push mechanism, the one side of pressure sensor and the top of work table all are fixedly installed with the mounting block of installing, the one side fixed mounting of mounting block has the first clamping plate. Through reset mechanism drive installation post to leave the inner wall of installation slot, can through the rotation screw rod drive second clamping plate to descend, can through first clamping plate and second clamping plate to the cable clamping fixed, through reset mechanism drive installation post to insert the inner wall of installation slot, can to installation disc carry out the location, and then to screw rod carry out the location, through push mechanism drive cable to move, and through pressure sensor to the tension detection, can to the tension of cable carry out the detection, through moving mechanism drive mounting block to move, can to the mounting block position of right side carry out the adjustment.

The utility model discloses a guide structure of a train image acquisition device, which relates to the technical field of guide structures of image acquisition devices, and comprises a guide frame, a rail is fixedly connected in the guide frame, a transverse acquisition device is arranged on the side surface of the guide frame, a longitudinal acquisition device is arranged in the guide frame, and the transverse acquisition device and the longitudinal acquisition device are arranged on the guide frame. And one end of the longitudinal acquisition device is fixedly connected with a clamping device. The motor, the lead screw, the collecting plate and the moving rod are matched, vehicles need to be detected when the trains are received and dispatched, however, the heights and the widths of the vehicles are different, the position of the collecting device can be adjusted through the transverse motor and the longitudinal motor so as to meet different working requirements, and the clamping device, the fixed clamp, the movable clamp and the spring are matched so as to meet different working requirements. When acquisition or equipment replacement is needed, acquisition or equipment replacement can be completed quickly, delay time is reduced, and meanwhile, an anti-skid pad can also prevent the acquisition device from falling off.

The utility model provides an anti-rotation structure of a strap stopping shaft of a binding device, and belongs to the technical field of binding devices. The problem that an existing binding device is insufficient in stability is solved. The binding device comprises a wrench, two connecting holes are formed in the wrench, a belt stopping shaft penetrates through the wrench, the two ends of the belt stopping shaft penetrate through the two connecting holes respectively, and an anti-rotation structure comprises at least one limiting step located at one end of the belt stopping shaft and at least one limiting face on the hole wall of one connecting hole. The limiting face abuts against the step face of the limiting step so that the belt stopping shaft and the wrench can be positioned in the circumferential direction, and the two ends of the belt stopping shaft protrude and deform towards the periphery through external force so that the belt stopping shaft and the wrench can be positioned in the axial direction. The anti-rotation structure of the strap stopping shaft of the binding device has the advantages of preventing the strap stopping shaft from rotating and improving the stability of the binding device.

The double-valve-needle structure comprises an outer valve needle and a nut, a first inner cavity is formed in the outer valve needle, a valve port cover is installed at the lower end of the outer valve needle, an open hole is formed in the bottom of the valve port cover, a side hole communicated with the open hole is formed in the outer side wall of the valve port cover, and the outer side wall of the valve port cover is provided with a second inner cavity. A nut is installed in the first inner cavity in a sliding mode, an inner valve element is installed at the lower end of the nut, a second inner cavity is formed in the lower portion of the inner valve element, an inner valve needle sliding up and down and a compression spring assisting in resetting of the inner valve needle are installed in the second inner cavity, and the open hole is blocked or opened by controlling axial movement of the inner valve needle. The flow regulating valve not only can regulate small flow, but also can regulate large flow, so that the flow regulating precision is greatly improved, and the adaptive capacity is stronger.

The utility model discloses a turbine rotor fulcrum bearing mounting device which comprises a chassis, and a locking assembly, a first supporting assembly, a first mounting assembly, a second supporting assembly, a second mounting assembly and a third supporting assembly are sequentially arranged from one end to the other end of the chassis. The locking assembly is provided with sleeve teeth used for being matched with a spline of the rotating shaft. The first supporting assembly, the second supporting assembly and the third supporting assembly are all used for supporting a rotating shaft of the turbine rotor. The first mounting assembly and the second mounting assembly are both used for mounting the torque multiplier. The first supporting assembly, the second supporting assembly and the third supporting assembly are arranged for supporting from different positions of the rotating shaft, the locking assembly is arranged for ensuring that the rotating shaft cannot rotate around the axis of the rotating shaft, and the first mounting assembly and the second mounting assembly are arranged for mounting the torque multiplier; by means of the two torsion multipliers which can correspond to the two fulcrum bearings respectively, the two fulcrum bearings can be installed, the turbine rotor does not need to be turned over in the installation process, and safety is higher.