31results about How to "Turn for easy control" patented technology

The invention discloses a high-voltage wire surface defect detection device. The high-voltage wire surface defect detection device comprises a walking mechanism and a detection apparatus; the detection apparatus is installed on the walking mechanism; the walking mechanism comprises a base, a rolling wheel group and a first power device; the base includes a first side plate, a second side plate and a bottom plate; the first side plate and the second side plate are installed on the bottom plate; the rolling wheel group comprises a first rolling wheel and a second rolling wheel; a gap for clamping a wire is formed between the first rolling wheel and the second rolling wheel; the first rolling wheel is arranged between the first side plate and the second side plate; the second rolling wheel is installed on a lifting mechanism which controls the lifting and descending of the second rolling wheel; the lifting mechanism is installed on the base; and the first power device drives the first rolling wheel to rotate and is installed on the base. With the high-voltage wire surface defect detection device of the invention adopted, detection personnel can directly observe the condition of each position of a high-voltage wire and accurately determine the specific location of a detect point on the high-voltage wire.

The invention discloses a power roller. The power roller comprises a supporting pipe made of an aluminum alloy material and roller bodies arranged in pair, wherein the roller bodies arranged in pair are installed on the supporting pipe. When a beginner uses the power roller, a speed change gear set produces resistance in the forward pushing process, and the direction of holding the power roller can be adjusted. When the strength of the hands and the abdomen reaches the limit and supporting is not enough, a reverse turning button can be pressed down, a motor in the supporting pipe rotates, a driven rotor rotates, a magnet b on the driven rotor drives a magnet a on annular gear to rotate, a drive base enables roller bodies to reduce speed and produce a backward force and enables the roller bodies to perform return motion so as to conveniently control rotation of the roller bodies, and the phenomenon that a user is sprained due to out-of-control rolling of the roller bodies.

The invention discloses a multifunctional fitness facility. The multifunctional fitness facility comprises two identical power roller monomers. A connecting chain is arranged between the power roller monomers. Each power roller monomer comprises a supporting pipe and two rollers, wherein a driven rotor is installed inside the supporting pipe, and an illumination lamp is fixedly installed at one end of the supporting pipe; when the two power rollers are in use, and strength of the hands or the belly is not large enough for supporting, a reverse button can be pressed down, so that rotation of the rollers can be controlled conveniently, and the phenomenon that a user is pulled due to the fact that rolling of the rollers is out of control is avoided. When the multifunctional fitness facility is adopted as a barbell, the rollers are changed into a load bearing material, the relative ends of the two supporting pipes are connected together through a connecting nut, and the multifunctional fitness facility can be used as the dumbbell when the connecting nut is disassembled. The two rollers are disassembled, and the connecting nut is disassembled, so that the multifunctional fitness facility can be used as a nunchakus; on this basis, the connecting nut is disassembled, the supporting pipe can be used as an electric torch independently.

The invention relates to the technical field of building construction, and discloses a coating device for building water-based paint processing. The coating device comprises an outer rod, wherein an inner rod is slidably connected into the outer rod, a first sliding way is formed in the surface of the outer rod, a clamping hole is formed in the surface of the first sliding way, and a sliding rod is fixedly connected to the surface of the inner rod. According to the coating device for building water-based paint processing, when vibration needs to be generated, a painting roller rotates, a second rotating rod does not rotate, the painting roller rotates, then a convex block rotates along with the painting roller, when the convex block rotates continuously, an extrusion vibration ball and a telescopic rod can contract inwards, then a reset spring is extruded, certain vibration is conveniently generated when the painting roller rotates, the fusion degree of water-based paint and the wall surface is improved, then the water-based paint is fused into a gap in the wall surface, the gap between the water-based paint and the wall surface is reduced, and the coating effect of the water-basedpaint is improved.

The invention discloses combinative abdominal muscle exercising equipment, which comprises two identical abdominal building wheel monomers, wherein a connecting chain is arranged between the abdominal building wheel monomers; each abdominal building wheel monomer comprises a supporting pipe and two roller wheels; driven rotors are mounted inside the supporting pipes; certain ends of the supporting pipes are fixedly provided with illuminating lamps; when the abdominal building wheels of a double-row wheel are used, and when the physical strength of a hand or an abdomen is not enough for supporting, a reversing button can be pressed down; thus, the rotation of the roller wheels is controlled conveniently; pulling injury of a user caused as the rolling of the roller wheels is out of control is prevented from happening. When the combinative abdominal muscle exercising equipment is used as a barbell, the roller wheels are changed to load bearing materials; opposite ends of the two supporting pipes are connected together by using a connecting nut. Two groups of the roller wheels are disassembled; moreover, the connecting nut is disassembled; thus the combinative abdominal muscle exercising equipment can be used as a nunchaku. The connecting nut is removed on the basis, and the supporting pipes can be separately used as flashlights.

The invention discloses a detection apparatus for surface defects of a high-voltage power line. The detection apparatus comprises a running gear and a detection unit for detecting surface defects of the high-voltage power line, wherein the detection unit is installed on the running gear; the running gear comprises a pedestal, a roller train and a first power unit; the pedestal comprises a first side plate, a second side plate and a base plate, and the first side plate and the second side plate are mounted on the base plate; the roller train comprises a first roller and a second roller, and a gap for clamping the high-voltage power line is formed between the first roller and the second roller; the first roller is installed between the first side plate and the second side plate; the second roller is mounted on an elevator mechanism controlling elevation of the second roller; the elevator mechanism is mounted on the pedestal; and the first power unit drives rotation of the first roller and is mounted on the pedestal. The detection apparatus has the beneficial effects that detection personnel can visually observe the status of each position of the high-voltage power line and accurately determine the specific positions of defect points on the high-voltage power line.

The invention relates to the technical field of civil air defense basements, and discloses a counter-pulling device for reinforcing a top plate beam of a civil air defense basement. The counter-pulling device comprises the top plate beam and a bearing beam, wherein the bearing beam is perpendicular to the top plate beam, and the top end of the bearing beam is fixedly connected with the bottom of the top plate beam; a fixing block is fixedly connected to the outer side of the bearing beam in a sleeving mode, and the outer section of the fixing block is of an annular structure; screw rods are symmetrically arranged on the upper surface of the fixing block, and the two ends of the screw rods are correspondingly and rotationally connected with the fixing block and the top plate beam through bearing seats; the screw rods are connected with the fixing block through driving assemblies, and matched nuts are connected to the screw rods in a threaded and sleeving mode; and two concentric-square-shaped plates which are symmetrical about the bearing beam are arranged on the top plate beam in a sleeving mode, connecting rods are hinged to the bottoms of the concentric-square-shaped plates, and the two connecting rods are symmetrically arranged. According to the counter-pulling device, reinforcing supporting points of the top plate beam can be conveniently adjusted according to actual building requirements, moreover, a locking function is achieved, and the positions of the reinforcing supporting points are effectively prevented from being changed.

The invention discloses abdominal muscle exercise equipment. The abdominal muscle exercise equipment comprises a supporting pipe, two rollers arranged on the supporting pipe and a speed change mechanism installed between the two rollers. Motors are fixedly installed at the two ends in the supporting pipe respectively, a circuit board and a storage battery are fixedly installed at the positions, at the outer ends of the two motors, in the supporting pipe respectively, portable power sources are installed at the two ends in the supporting pipe, and a reverse rotation button is fixedly connected to the position, close to one roller, of the outer wall of the supporting pipe. The speed change mechanism comprises a transmission base, a positioning frame and an annular gear. According to the abdominal muscle exercise equipment, rotation of the rollers can be conveniently controlled, and the situation that as the rollers roll out of control, strain of a user is caused can be prevented; the abdominal muscle exercise equipment can serve as a common abdominal exercise roller by taking out the speed change mechanism; the portable power sources in the supporting pipe can be taken out as needed to serve as a portable charger.

The invention discloses abdominal fitness equipment which comprises a supporting tube made of an aluminum alloy, a speed change mechanism and rollers in pairs, wherein the rollers in pairs are mountedon the supporting tube; and the speed change mechanism is arranged between the rollers in pairs. When an abdominal roller is used by a beginner, the speed change mechanism generates resistance in theforward pushing process, and the direction of holding the abdominal roller can be adjusted; when hand or abdominal strength reaches the limit and is not enough to support, a reverse button can be pressed down, a motor in the supporting tube runs, a driven rotor rotates, a magnet b on the driven rotor drives a magnet a on a ring gear to rotate, the ring gear is rotated to drive a gear b, a gear dis driven by a gear a, a gear c drives an internal gear on a transmission base to rotate, and the transmission base enables the roller to slow down to generate backward force so as to make the rollerreturn. Therefore, rotation of the roller is conveniently controlled, and the condition that pull of a user is caused by out-of-control rolling of the roller is avoided.

The invention discloses an abdominal fitness roller which comprises a supporting tube made of an aluminum alloy, and rollers in pairs, wherein the rollers in pairs are mounted on the supporting tube.When the abdominal fitness roller is used by a beginner, a change gear set generates resistance in the forward pushing process, and the direction of holding the abdominal fitness roller can be adjusted; and when hand or abdominal strength reaches the limit and is not enough to support, a reverse button can be pressed down, a motor in the supporting tube runs, a driven rotor rotates, a magnet b onthe driven rotor drives a magnet a on a ring gear to rotate, the ring gear is rotated to drive a gear b, a gear d is driven by a gear a, a gear c drives an internal gear on a transmission base to rotate, and the transmission base enables the roller to slow down to generate backward force so as to make the roller return. Therefore, rotation of the roller is conveniently controlled, and the condition that pull of a user is caused by out-of-control rolling of the roller is avoided.

The invention belongs to the technical field of flue gas dust removal, and particularly discloses a flue gas exhaust pipe and pipeline support. The support comprises a gas exhaust pipeline, connectingpipes are installed at the two sides of the gas exhaust pipeline, and the exterior of the gas exhaust pipeline is fixed to the pipeline support; the connecting pipes are in a circular truncated coneshape, the large diameter ends of the connecting pipes are communicated with the gas exhaust pipeline, a plurality of rows of axially-arranged plug rods are distributed at the peripheral direction ofthe upper edges of the connecting pipes, and the plug rods are parallel to the center lines of the connecting pipes; a cavity is formed in the pipe wall of each connecting pipe, one end of each pistonrod is in sliding sealed connection with the corresponding cavity, and an ejector rod in sliding sealed connection with each cavity is arranged at the exterior of the corresponding connecting pipe; afirst magnet is arranged at the end, away from each connecting pipe, of the corresponding ejector rod, fixing plates corresponding to the ejector rods in position are hinged to the joints of the connecting pipes and the gas exhaust pipeline, and second magnets are arranged on the fixing plates. Compared with the prior art, the flue gas exhaust pipe and pipeline support is convenient to install, the height can be adjusted as needed, dust can be collected by means of the flue gas flowing effect, dust can be cleaned conveniently, and the gas exhaust pipeline can be conveniently used for a long time.

The invention provides a small agricultural irrigation device. The device comprises a hose, a hard pipe, a casing pipe, a nozzle, a water pump, damping springs, a threaded rod and a filtering net. Thehose is connected to the right end of the hard pipe, the water pump is connected to the left end of the hard pipe, the right end of the hard pipe extends to the right end of a water tank, the casingpipe is assembled on the annular side face of the hard pipe, the nozzle is connected with the water pump through a connecting pipe, the water pump is fixed in the water tank through screws, the lowerend of the threaded rod penetrates through a mounting frame to be connected with a moving plate through a bearing base, and the filtering net is assembled on the right portion of the interior of the hose. The design achieves the function that convenience is provided for damping, fixation and use according to the position of a water source; by means of the device, convenience is provided for damping, fixation and use according to the position of the water source, and the reliability is high.

The invention discloses an abdominal muscle exercise device. The abdominal muscle exercise device comprises a supporting tube, two rolling wheels arranged on the supporting tube, and a speed change mechanism arranged between the two rolling wheels, wherein motors are fixedly mounted at two ends of the inside of the supporting tube; a circuit board and a storage battery are fixedly mounted at the positions, at the outer ends of each motor, in the supporting tube; portable power supplies are mounted at two ends of the inside of the supporting tube; a reversing button is fixedly connected to theposition, close to the rolling wheels, of the outer wall of the supporting tube; the speed change mechanism comprises a transmission base, a positioning frame and an annular gear. For the abdominal muscle exercise device, the rotation of the rolling wheels can be conveniently controlled, so that the strain caused to a user due to the fact that the rolling wheels are out of control during rolling is avoided; after the speed change mechanism is taken out, the abdominal muscle exercise device can be used as a common abdomen building wheel; the portable power supplies in the supporting tube can betaken out according to requirements and used as charge pals.

The invention discloses an assistant mirror mounting device in urological microsurgery. The assistant mirror mounting device comprises a base and an assistant mirror, an upper surface of the base is fixedly connected with a supporting rod, an upper end face of the supporting rod is horizontally and fixedly connected with a supporting arm, a lower surface of the supporting arm is fixedly connectedwith a connecting rod, a lower end of the connecting rod is fixedly connected with a connecting block, the lower surface of the connecting block is rotationally connected with a fixing plate, a control cavity is disposed in the connecting block, a control mechanism for controlling the rotation of the fixing plate is rotatably connected to a side wall of the control cavity, and a fixing block is fixedly connected to the side wall of the auxiliary mirror, an accommodating groove is formed in the side wall of the fixing plate, and the fixing block is located in the accommodating groove; and the assistant mirror mounting device disclosed by the invention not only can facilitate the installation and disassembly of the assistant mirror, but also can facilitate the maintenance and care of the assistant mirror by a worker, and can also adjust the direction of the assistant mirror according to needs, and the assistant mirror mounting device is simple to operate and convenient to use.

The invention discloses a clamping device for processing an aluminum-based circuit board of an LED lamp. The clamping device comprises a base plate; a telescopic rod is fixedly installed in the middle of the upper end of the base plate; a limiting rotary button is fixedly installed in the middle of the right end of the telescopic rod; a rotating device is arranged at the upper end of the telescopic rod; the rotating device comprises a limiting base, an adjusting groove, inner gear rings, insection structures, an inner edge support, a first fixing shaft, a first gear, a second fixing shaft and a second gear; the limiting base is fixedly installed at the upper end of the telescopic rod; the adjusting groove is formed in the circumferential side of the front end of the limiting base; and the inner gear rings are symmetrically installed at the upper end and the lower end in the limiting base. When the clamping device is in use, the lower inner gear ring is controlled to rotate through the adjusting groove, the lower inner gear ring and the first gear are subjected to insection meshing, and therefore the upper inner gear ring is further forced to rotate through the insection meshing of the first gear and the second gear, rotation of a clamping device body on the upper portion is completed, and machining is convenient.

The invention discloses multifunctional abdomen exercise equipment. The multifunctional abdomen exercise equipment comprises two identical single power rollers. A connecting chain is arranged between the single power rollers. Each single power roller comprises a supporting pipe and two rollers. A driven rotor is installed in each supporting pipe, and an illuminating lamp is fixedly installed at one end of each supporting pipe. When the power rollers with double rows of wheels are used, when hand or abdomen force is not enough for supporting, a reversal button can be pressed, the wheels are conveniently controlled to rotate accordingly, and the situation that a user is strained due to out of control of rolling of the rollers is avoided. When the multifunctional abdomen exercise equipment is used as a barbell, the rollers are replaced with load bearing materials, and the opposite ends of the two supporting pipes are connected through a connecting nut. The two sets of rollers are detached, the connecting nut is detached, and the multifunctional abdomen exercise equipment can be used as nunchucks. The connecting nut is detached on the basis, and the supporting pipes can be independently used as flashlights.

The invention discloses a high-voltage wire surface defect detection device. The high-voltage wire surface defect detection device comprises a walking mechanism and a detection apparatus; the detection apparatus is installed on the walking mechanism; the walking mechanism comprises a base, a rolling wheel group and a first power device; the base includes a first side plate, a second side plate and a bottom plate; the first side plate and the second side plate are installed on the bottom plate; the rolling wheel group comprises a first rolling wheel and a second rolling wheel; a gap for clamping a wire is formed between the first rolling wheel and the second rolling wheel; the first rolling wheel is arranged between the first side plate and the second side plate; the second rolling wheel is installed on a lifting mechanism which controls the lifting and descending of the second rolling wheel; the lifting mechanism is installed on the base; and the first power device drives the first rolling wheel to rotate and is installed on the base. With the high-voltage wire surface defect detection device of the invention adopted, detection personnel can directly observe the condition of each position of a high-voltage wire and accurately determine the specific location of a detect point on the high-voltage wire.

The invention relates to a joint transmission device of an industrial robot arm. The joint transmission device comprises a base, wherein a movable block is mounted inside the base, a fixed sleeve is arranged on the top of the movable block, a first linkage rod is installed inside the fixed sleeve, a first bearing is mounted on one end of the first linkage rod, a second linkage rod is mounted on the other end of the first linkage rod, a first fixed sleeve is mounted on one end of the second linkage rod, a second fixed sleeve is fixedly mounted on the other end of the second linkage rod, the upper part of the second fixed sleeve is provided with a connecting block, the upper part of the connecting block is fixedly provided with a base, a fixed screw rod is mounted on one side of the base, alimiting block is installed at one end of the fixed screw rod, and a limiting slot is formed in the middle of the movable block. The joint transmission device has the advantages of simple structure, obvious effect, low cost and strong practicability, can facilitate joint transmission of the industrial robot arm conveniently and testing of a transmission angle, can better protect the use effect ofthe product and prolong the service life of the product, and is easy to install and use.

The invention discloses a frame of a photovoltaic cell module. The frame comprises a frame body, wherein the inner side wall of the frame body is fixedly connected with a connection plate; the lower surface of the connection plate is fixedly connected with two fixed blocks; the lower end surface of each fixed block is rotationally connected with a movable column; a control box is arranged at the lower sides of the movable columns; the lower ends of the movable columns pass through through holes in a top plate of the control box and are fixedly connected with racks; the racks are located in thecontrol box; a gear is meshed between the racks and fixedly connected with a rotating cylinder; one end of the rotating cylinder is rotationally connected with the inner side wall of the control box;and the other end of the rotating cylinder passes through a through hole in the side wall of the control box and is fixedly connected with an annular rotating block. According to the frame, the inclination angle of the frame body can be adjusted to receive light to the maximum extent, therefore, the frame of the photovoltaic cell module is worthy of popularization.

The invention discloses an abdominal muscle exercise device. The abdominal muscle exercise device comprises a supporting tube, two rolling wheels arranged on the supporting tube, and a speed change mechanism arranged between the two rolling wheels, wherein motors are fixedly mounted at two ends of the inside of the supporting tube; a circuit board and a storage battery are fixedly mounted at the positions, at the outer ends of each motor, in the supporting tube; portable power supplies are mounted at two ends of the inside of the supporting tube; a reversing button is fixedly connected to theposition, close to the rolling wheels, of the outer wall of the supporting tube; the speed change mechanism comprises a transmission base, a positioning frame and an annular gear. For the abdominal muscle exercise device, the rotation of the rolling wheels can be conveniently controlled, so that the strain caused to a user due to the fact that the rolling wheels are out of control during rolling is avoided; after the speed change mechanism is taken out, the abdominal muscle exercise device can be used as a common abdomen building wheel; the portable power supplies in the supporting tube can betaken out according to requirements and used as charge pals.

The invention belongs to the technical field of flue gas dust removal, and particularly discloses a flue gas exhaust pipe and pipeline support. The support comprises a gas exhaust pipeline, connectingpipes are installed at the two sides of the gas exhaust pipeline, and the exterior of the gas exhaust pipeline is fixed to the pipeline support; the connecting pipes are in a circular truncated coneshape, the large diameter ends of the connecting pipes are communicated with the gas exhaust pipeline, a plurality of rows of axially-arranged plug rods are distributed at the peripheral direction ofthe upper edges of the connecting pipes, and the plug rods are parallel to the center lines of the connecting pipes; a cavity is formed in the pipe wall of each connecting pipe, one end of each pistonrod is in sliding sealed connection with the corresponding cavity, and an ejector rod in sliding sealed connection with each cavity is arranged at the exterior of the corresponding connecting pipe; afirst magnet is arranged at the end, away from each connecting pipe, of the corresponding ejector rod, fixing plates corresponding to the ejector rods in position are hinged to the joints of the connecting pipes and the gas exhaust pipeline, and second magnets are arranged on the fixing plates. Compared with the prior art, the flue gas exhaust pipe and pipeline support is convenient to install, the height can be adjusted as needed, dust can be collected by means of the flue gas flowing effect, dust can be cleaned conveniently, and the gas exhaust pipeline can be conveniently used for a long time.

The invention discloses an ice skate blade mounting piece for skating training and relates to the field of skating training. The ice skate blade mounting piece for the skating training comprises ice skates, ice skate blade assemblies and rotating plates, wherein the ice skates are fixedly connected with mounting sleeves, the ice skates are fixedly connected with connecting rods, the ice skate blade assemblies are fixedly connected into the mounting sleeves through the two rotating plates, each ice skate blade assembly comprises a mounting strip, an ice skate blade body and a rotating shaft, the mounting strip is provided with two rectangular insertion holes, and the two rectangular insertion holes are formed in the mounting strip; the ice skate blade body is fixedly connected with two rectangular insertion blocks, the ice skate blade body is slidably connected with the mounting strip through the rectangular insertion holes and the rectangular insertion blocks, the mounting strip is provided with a rotating hole, the rotating shaft is rotatably connected in the rotating hole, and the mounting strip is fixedly connected with the ice skate blade body through the rotating shaft. The ice skate blade mounting piece for the skating training has the function that the speed of mounting and dismounting the mounting strips on ice skates can be increased through connection of the ice skate blade bodies and the mounting strips.

The invention discloses multifunctional abdominal workout equipment which comprises two identical single power rollers; a connecting chain is arranged between the single power rollers; each single power roller consists of a supporting tube and two rollers; a driven rotor is arranged inside the supporting tube, and an illuminating lamp is fixedly arranged on one end of the supporting tube; when thepower rollers of a roller skate are in use and hand or abdominal power is not enough to support, a reverse button can be pressed down so as to conveniently control the rotation of the rollers and prevent a user from causing strain due to uncontrollable rolling of the rollers. When being used as a barbell, the rollers are replaced with a load bearing material, and the opposite ends of the two supporting tubes are connected together through connecting nuts. The two groups of rollers are disassembled, and the connecting nuts are disassembled as nunchakus for use. On the basis, the connecting nuts are disassembled, and the supporting tube can be separately used as a flashlight for use.

The invention discloses a detection apparatus for surface defects of a high-voltage power line. The detection apparatus comprises a running gear and a detection unit for detecting surface defects of the high-voltage power line, wherein the detection unit is installed on the running gear; the running gear comprises a pedestal, a roller train and a first power unit; the pedestal comprises a first side plate, a second side plate and a base plate, and the first side plate and the second side plate are mounted on the base plate; the roller train comprises a first roller and a second roller, and a gap for clamping the high-voltage power line is formed between the first roller and the second roller; the first roller is installed between the first side plate and the second side plate; the second roller is mounted on an elevator mechanism controlling elevation of the second roller; the elevator mechanism is mounted on the pedestal; and the first power unit drives rotation of the first roller and is mounted on the pedestal. The detection apparatus has the beneficial effects that detection personnel can visually observe the status of each position of the high-voltage power line and accurately determine the specific positions of defect points on the high-voltage power line.

The invention discloses multifunctional abdomen exercise equipment. The multifunctional abdomen exercise equipment comprises two identical single power rollers. A connecting chain is arranged between the single power rollers. Each single power roller comprises a supporting pipe and two rollers. A driven rotor is installed in each supporting pipe, and an illuminating lamp is fixedly installed at one end of each supporting pipe. When the power rollers with double rows of wheels are used, when hand or abdomen force is not enough for supporting, a reversal button can be pressed, the wheels are conveniently controlled to rotate accordingly, and the situation that a user is strained due to out of control of rolling of the rollers is avoided. When the multifunctional abdomen exercise equipment is used as a barbell, the rollers are replaced with load bearing materials, and the opposite ends of the two supporting pipes are connected through a connecting nut. The two sets of rollers are detached, the connecting nut is detached, and the multifunctional abdomen exercise equipment can be used as nunchucks. The connecting nut is detached on the basis, and the supporting pipes can be independently used as flashlights.

The invention provides a lock cylinder structure in an anti-theft label. A lock cavity is formed in the center of the lower part of a lock housing, and a lock cylinder is mounted in the lock cavity, wherein a lock hole is formed in the left side of the center of the upper part of the lock housing; a rotating cavity is formed in the position, on the right side of the lock hole, in the lock housing,the left end of the rotating cavity communicates with the lock hole; the center of the rotating cavity communicates with the upper part of the lock cavity through a communicating cavity; a rotating baffle is rotationally arranged in the rotating cavity; one end of the rotating baffle is fixedly connected with the upper end of the lock cylinder through a connecting rod arranged in the communicating cavity in a sliding and penetrating manner, and the other end of the rotating baffle can stretch into the lock hole in the rotating process; a plurality of grooves A are formed in one side of the lock cylinder; a plurality of grooves B are formed in the position, on one side of the lock cavity, of the lock housing; springs are arranged on the inner sides of the grooves B; lock pins are arrangedon the outer sides of the grooves B; the lock pins stretch into the grooves A in a sliding manner under the action of the springs; a key slot hole is formed in the axial direction of the lock cylinder; and one side of the key slot hole communicates with a plurality of grooves A. The lock cylinder can achieve a good anti-theft function and can meet the anti-theft requirements of some special commodities.

The invention provides metal engraving machining equipment which comprises a supporting table, a limiting stopping table, a groove, a movable stopping table, a nut base, a driving motor, a first chainwheel, a second chain wheel, a driving shaft and a lead screw. The supporting table is fixed to the upper end face of a driving shaft, the limiting stopping table is fixed to the left portion of theupper side face of the supporting table, the groove is formed in the right portion of the upper side face of the supporting table, the movable stopping table is fixed to the upper end face of the nutbase, the nut base is installed on the annular side face of the lead screw, the driving motor is arranged on the right portion of the lower side face of the working table, the first chain wheel is arranged on the lower end face of the driving motor, the second chain wheel is fixed to the lower end face of the driving shaft, the driving shaft is arranged at the middle portion of the working table,and the lead screw is installed at the middle portion in the groove. By means of the design, quick clamping and engraving angle adjusting functions on to-be-machined workpieces are achieved; and the metal engraving machining equipment is reasonable in structure, good in workpiece clamping effect, adjustable in machining angle and high in practicability.