99results about How to "No axial movement" patented technology

The invention relates to a portable automatic window breaking device, which comprises a glass breaking assembly, wherein the glass breaking assembly is arranged in a sleeve; one end of the sleeve is fixedly connected with a handle, and the other end of the sleeve is fixedly connected with a sucker; a circuit control board is arranged in the handle; a pressure contact switch is arranged between the glass breaking assembly and the circuit control board; the bottom of the glass breaking assembly axially presses the pressure contact switch to release protection; the glass breaking assembly which releases protection is controlled by a starting switch on the circuit control board to act; and electric signals are provided by an energy storage battery. The portable automatic window breaking device has large initial kinetic energy, easily and quickly breaks glass, has the glass breaking capacity which is 5 to 25 times that of the traditional safety hammer and can break common toughened glass which is 3-12mm in thickness; a safety protection structure is arranged to ensure that the portable automatic window breaking device is safe and reliable in the carrying and glass breaking processes; meanwhile, the device has functions such as sound warning, flash warning and lighting.

The invention discloses a fixture for a turning ball head shaft type part. The fixture comprises a fixture body, a supporting body and a gland; the supporting body is of a stepped shaft structure, thesmall-diameter segment of the back portion of the supporting body is inserted into a guiding blind hole formed in the front end face of the fixture body in a clearance fit mode, the large-diameter segment of the front portion of the supporting body is inserted into a guiding hole formed in the back end face of the gland in a clearance fit mode, and the guiding hole comprises a circular guiding portion arranged at the front end and a conical clamping portion arranged at the back end; a conical positioning groove is formed in the front end face of the supporting body, and a ball head of the part is fixedly clamped through the conical positioning groove and the conical clamping portion; and the gland is provided with an axial through hole which communicates with the guiding hole and is usedfor allowing a part shaft body to penetrate. According to the fixture for the turning ball head shaft type part, the workpiece ball head is fixed to the interior of the fixture through relative extrusion of the supporting body and the gland, a compression spring between the supporting body and the fixture body can ensure that a workpiece is always fixedly compressed, the shaft body of the workpiece stretches out of the gland, subsequent machining is convenient, and the fixing mode is reliable and stable.

Disclosed is a mechanism for connecting free flanged pipe ends or tube ends (2, 22). Said mechanism comprises several hingedly interconnected clamp segments (3A, 3B, 3C, 3D) that have a substantially U-shaped cross-section, a clamping lever (4), one end of which is arranged at a free end of a clamp segment (3A), and at least one spring (5). The clamp segments (3A, 3B, 3C, 3D) externally overlap the flanges of the joined pipe ends or tube ends (2, 22) while the free ends of the first and the last clamp segment (3A and 3D) can be locked by means of the clamping lever (4) and the spring (5). In order to reliably prevent the closed mechanism from automatically opening under all circumstances, the clamping lever (4) can be positively connected to the free end of the adjacent clamp segment (3D)and can be locked in the tightened position.

The invention provides an LED (Light-Emitting Diode) energy-saving lamp, which belongs to the technical field of lamps and is used for solving the technical problems of incapability of using heat dissipated by the conventional LED energy-saving lamp, poor energy-saving effect and the like existing in the prior art. The energy-saving lamp comprises a lamp cap, wherein the lamp cap comprises a lamp cap main body and an insulator; soldering tin is fixedly arranged at the outer end of the insulator; a round table is fixedly arranged at the outer end of the lamp cap main body; two LED light sources are fixedly arranged on the round table; a lampshade is sleeved on each LED light source; a slot is formed between the two lampshades; a heat-collecting tube is inserted into the slot; a heat-conducting graphite film is coated on the side wall of the heat-collecting tube; the heat-conducting graphite film is attached to the lampshades; an annular radiating fin is further sleeved on the lamp cap main body; a heat-conducting graphite film is also arranged between the annular radiating fin and the lamp cap main body; an inner cavity is formed in the heat-collecting tube; a heat-conducting cavity communicated with the inner cavity is formed in the annular radiating fin; repellent liquid is filled into the inner cavity and the heat-conducting cavity; and a through hole is formed in the top end of the heat-conducting cavity. The LED energy-saving lamp has a good energy-saving effect.

The invention is applicable to the technical field of pipeline disassembly and assembly auxiliary tools, and provides a pipeline disassembly and assembly auxiliary table. The pipeline disassembly and assembly auxiliary table comprises a control structure, a driving component, a transmission mechanism, two sets of lead screw components and pipe clamp components, wherein the control structure comprises a control panel, two gear grooves and gear rods; the driving component comprises a driving bevel gear; the transmission mechanism comprises two sets of gear shaft components matched with the driving bevel gear; each set of lead screw components comprises a driven bevel gear, a lead screw inner rod and a lead screw outer rod, wherein the lead screw inner rod and the lead screw outer rod are connected to the driven bevel gear, the two driven bevel gears are matched with one set of gear shaft components respectively, the bottoms of the driven bevel gears are connected to the gear rods correspondingly, and the gear rods can control the driven bevel gears to move up and down; and the pipe clamp components are movably connected to the tops of the lead screw outer rods correspondingly and can be driven by the lead screw components to ascend or descend. Therefore, pipe clamps and a lead screw transmission mechanism are combined, the relative height of the two pipe clamps is adjusted through a handle, and the position and the angle of a pipeline needing to be installed are adjusted for manual installation, welding and other operations.

The invention provides a trailer arm assembly belonging to the technical field of vehicle dragging devices and solving the problem of poor stability of the existing trailer arm. The trailer arm assembly is characterized by comprising a connecting arm, a supporting arm, a main ball head and an auxiliary ball head, wherein the supporting arm is connected with the connecting arm, and a mounting hole is formed in the supporting arm; the main ball head is provided with a cylindrical extension part inserted to the mounting hole; and the auxiliary ball head is provided with a mounting part which is inserted to the extension part and is in threaded connection with the extension part. The trailer arm assembly has the advantages of simple structure, connection firmness and good stability.

The invention discloses a cross axle-type universal coupling which consists of a jaw, an end cover, an annular check ring, a bearing housing, a cross axle, a roller bearing and a loose rib. The axle journal of the cross axle is arranged in an axle hole of the jaw; the root of the axle journal of the cross axle is provided with the loose rib; the roller bearing is arranged on the axle journal of the cross axle; the inner wall of the axle hole of the jaw is provided with the bearing housing; the right end surface of the bearing housing is pressed on the loose rib; a wave spring is arranged between the roller bearing and the loose rib; the outer wall of the bearing housing has a certain conicity and cooperates with the axle hole with the conicity of the jaw; at the position of the left end surface of the bearing housing, the inside diameter of the axle hole of the jaw is provided with an annular slot; the annular check ring cooperating with the annular slot is arranged in the annular slot; the conicity cooperating with the annular check ring is set on the end cover; a bolt is utilized to connect the end cover and the bearing housing, and the annular check ring is tightly pressed on the bearing housing; and a certain clearance is arranged between the end cover and the left end surface of the bearing housing, thereby achieving easy assembly and detaching, reliable use and long service life.

The invention belongs to the technical field of polishing processing of valve components, and in particular relates to a stainless steel valve stem polishing machine, which includes a horizontal bottom plate, a vertical plate is fixedly installed on the upper surface of the bottom plate, a drive motor is fixedly installed horizontally on the vertical plate, and the output of the drive motor is The shaft runs through the vertical plate and is fixedly equipped with a clamping mechanism; in the process of grinding and deburring the threaded part on the valve stem and polishing the unthreaded part on the surface of the formed valve stem, the clamping mechanism controls the valve The stem is clamped, the clamping mechanism and the valve stem are driven to rotate through the drive motor, and the valve stem is limited by the polishing mechanism, so that the axis of the valve stem always coincides with the axis of the drive motor, so as to ensure the fixed axis rotation of the valve stem and ensure To ensure the uniformity of grinding and polishing, the end of the valve stem is positioned by a positioning ball to ensure that the valve stem does not move axially when it rotates, further ensuring the uniformity of grinding and polishing.

The invention discloses a saw blade dismounting and mounting device facilitating remote replacement operation. The device comprises a saw cutting reduction gearbox and a saw cutting drive. The saw cutting drive is fixed to the saw cutting reduction gearbox, the saw cutting reduction gearbox comprises a saw cutting reduction gearbox output mechanism, and the saw cutting reduction gearbox output mechanism is fixed to the top end of the saw cutting reduction gearbox. The saw cutting reduction gearbox output mechanism is detachably connected with a saw blade assembly. According to the saw blade dismounting and mounting device facilitating remote replacement operation, a pressing nut on the saw cutting assembly is in nut connection with an output shaft in the middle of the saw cutting reduction gearbox output mechanism, the spiral tightening direction of threads of the pressing nut is opposite to the rotating direction of a saw blade in the saw cutting work process, and the contact face of the pressing face and the saw blade assembly is an annular section with the outer diameter being as large as possible. The enough large fastening torque for preventing the saw blade from loosening can be provided, the tedious steps of field operation are greatly simplified, meanwhile, the process of coarse positioning first and then fine positioning is completed step by step, and the installation requirement for high positioning precision can be met easily.

A novel assembling mechanism of a radio-frequency coaxial connector comprises an inner conductor and an outer conductor, and further comprises a first electrical insulator arranged in the outer conductor and a second electrical insulator which is adjacent to the first electrical insulator and arranged outside the first electrical insulator. The first electrical insulator is arranged in the second electrical insulator, and inner bores of the inner conductor, the first electrical insulator and the outer conductor are overlapped to form a filling opening. The filling opening adopts an epoxy resin filling and sealing mechanism. The size of the inner bore of the second electrical insulator is equal to the size of a thin cable conductor to be used for righting a core wire. The core wire is guaranteed not to move in the axial direction, the outer conductor (3) and a mask layer of the thin electric cable adopt a welding mechanism. The novel assembling mechanism of the radio-frequency coaxial connector has the advantage that the cable conductor can be prevented from breaking and loosing.