56results about How to "Fixed shortcut" patented technology

The utility model relates to the technical field of building construction equipment, and particularly discloses building construction hoisting equipment which comprises a shell, an opening is formed in one side of the shell, a baffle is connected to the opening in a sliding mode, and a guide mechanism is connected to the position, located among a plurality of partition plates, of the inner bottom of the shell. Two sets of locking mechanisms are arranged on the upper portion of the outer side of the shell, the guiding mechanism comprises a plurality of guiding assemblies, each guiding assembly comprises a belt, limiting strips are fixed to the two sides of the outer portion of the belt, a plurality of anti-slip strips arranged at intervals are fixed between the two limiting strips, and each locking mechanism comprises a fixing frame and a connecting sleeve shell. The connecting sleeve shell is fixedly connected with the shell, the fixing frame is connected into the connecting sleeve shell in a sliding mode, and a plurality of rubber rollers arranged at intervals are rotationally connected to the lower portion of the fixing frame; according to the utility model, the hoisting stability and the hoisting efficiency are improved, and the damage to the glass when the glass is placed and taken can be avoided.

The utility model discloses a spin riveting device which comprises an upper fixing plate, a lower fixing plate, a guide rod, a bearing, a spin riveting rod, a spin riveting head, a pressing rod fixing plate, an outer pressing rod and a material pressing spring. The lower end of the guide rod is fixed to the lower fixing plate, the upper fixing plate movably sleeves the upper portion of the guide rod, the bearing is fixed to the middle of the upper fixing plate, the top face of the pressing rod fixing plate is fixed to the bottom face of the upper fixing plate, the upper portion of the spin riveting rod is fixed to an inner hole of the bearing, and the lower end of the spin riveting rod is fixed to the spin riveting head. The upper end of the outer pressing rod is movably arranged in the pressing rod fixing plate in a penetrating mode, the pressing spring is arranged in the pressing rod fixing plate in a sleeved mode, and the two ends of the pressing spring abut against the upper fixing plate and the upper end face of the outer pressing rod respectively. Corresponding spin riveting heads can be replaced according to the shapes of parts to be machined, machining of different spin riveting shapes is achieved, the application range is wide, and the device has the advantages of being rapid in part fixing, low in cost, good in maintainability, convenient to operate and the like.

The invention belongs to the technical field of node welding, and particularly relates to building steel structure node welding equipment which comprises a welding table, two fixing devices are arranged on one side of the welding table, a plurality of magnetic balls are used for fixing hemispheres, a welding head is slidably connected into a sliding cylinder, and a coating device is arranged on the other side of the welding table. The coating device is used for coating the welding position of the two hemispheres with anti-splashing coating. The hemispheres are attracted and fixed through the magnetic balls of the fixing device, the hemispheres can be fixed more quickly for welding, the butt joint of the hemispheres does not need to be manually fixed and adjusted by operators, and when the fixing device drives the hemispheres to abut against the hemispheres, the welding position of the two hemispheres can be automatically adjusted to be in a vertical state for welding; the coating is smeared beside the weld joints of the hemispheres through the roller, welding slag and sparks are prevented from splashing, after the anti-splashing coating is smeared, the two hemispheres are subjected to full welding to complete the welding work of the node balls, the fixing time of the node balls is shortened, and the welding efficiency of the node balls is improved.

The utility model relates to the technical field of geological investigation, and discloses a high-stability sampling device for geotechnical engineering investigation, which comprises a device table, vertical rods are fixedly connected to the left side and the right side of the top end of the device table, sliding blocks are slidably connected to the outer walls of the vertical rods, and transverse rods are fixedly connected to the opposite ends of the sliding blocks. Sampling assemblies are arranged at the opposite ends of the cross rods, a material collecting box is connected to the lower sides of the opposite ends of the vertical rods through lifting assemblies, a collecting barrel is fixedly connected to the bottom end of the material collecting box, and stabilizing shafts are connected to the opposite ends of the vertical rods through stabilizing assemblies; the outer walls of the stabilizing shafts are in threaded connection to the inner walls of the sides, away from the vertical rods, of the top ends of the device tables correspondingly, and reinforcing assemblies are arranged on the inner walls of the stabilizing shafts. According to the sampling device, the fixing work before the device is used is realized, manual operation is not needed, the fixing is faster, and the sampling position deviation caused by the fact that the two sides cannot be fixed at the same time is avoided.

The utility model relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with an anti-shaking cabinet door, which comprises a base, the upper end of the base is fixedly connected with a protection plate, the inner side of the protection plate is provided with a bidirectional motor, and the output end of the bidirectional motor is fixedly connected with a bidirectional threaded rod. Left and right opposite threaded blocks are in threaded connection with the outer side of the bidirectional threaded rod, clamping plates are fixedly connected to the upper ends of the two threaded blocks, sliding blocks are fixedly connected to the rear ends of the two threaded blocks, left and right opposite sliding grooves are formed in the inner wall of the lower end of the inner side of the protection plate, and sliding grooves are slidably connected to the other ends of the two sliding blocks. According to the power distribution cabinet, through cooperation of the bidirectional motor, the bidirectional threaded rod, the threaded block, the clamping plate and the limiting groove, the effect of clamping and fixing the power distribution cabinet body is achieved, the problem that a cabinet door is prone to shaking when the power distribution cabinet body works is solved, and therefore normal work and operation of the power distribution cabinet body are guaranteed.

The utility model discloses a short circuit piece, a motor and a household electrical appliance, the short circuit piece is used for the motor, the motor is provided with a first connection point and a second connection point, the short circuit piece comprises a first terminal and a second terminal, the first terminal is electrically connected with the first connection point, and the second terminal is electrically connected with the second connection point; the short circuit piece further comprises an electric conductor which is arranged between the first terminal and the second terminal and is integrally connected with the first terminal and the second terminal. According to the utility model, the long-strip-shaped metal conductor is arranged, the circular first terminal and the circular second terminal are arranged on the conductor, and the bending part is matched to be attached to the connecting point of the motor, so that the purposes of attractive and neat wiring, reliable short-circuit connection and economical and practical price are achieved.

The utility model discloses a motor protection shell, which comprises a protection shell main body, a motor body is arranged in the protection shell main body, the motor protection shell further comprises a mounting frame, the mounting frame is arranged on one side of the protection shell main body in the width direction, and a driving mechanism is arranged on one side of the interior of the mounting frame. And a driving shaft of the driving mechanism is fixedly connected with a screw rod. According to the scheme, the draught fan arranged on one side of the protective shell body is started to generate suction wind power, meanwhile, the driving mechanism arranged in the mounting frame is started to drive the screw to rotate to be separated from the filtering end, the bottom end of the second communicating pipe rotates to be separated from the second collecting cavity, and the second collecting cavity is separated from the second collecting cavity. And the first collecting cavity and the second collecting cavity are detached to treat the dust, so that the dust attached to the heat dissipation opening is quickly cleaned, the situation that the normal heat dissipation of the shell is affected due to excessive dust accumulation is avoided, and the effect of improving the practicability of the device is achieved.

The utility model relates to the technical field of building construction equipment, and discloses a pre-embedded device for hanging a creeping formwork, which comprises a connecting plate frame, a positioning cone is connected to one side of the connecting plate frame, an internal threaded hole is formed in one side of the connecting plate frame, and a strong magnetic seat is in threaded connection with the internal threaded hole. A plurality of elastic frames are connected between the inner sides of the connecting plate frames, one ends of the elastic frames are connected with the same connecting disc, and a groove is formed in the other side of the connecting disc. Different mounting modes can be selected according to different materials of a pouring template through the positioning cone and the strong magnetic seat, and the holding frame can be driven to slide along the guide rail through the connection between the guide groove and the traction bolt head by rotating and twisting the hand pipe through the connecting plate frame, so that embedded parts with different sizes and diameters can be quickly fixed; the application range is effectively widened, meanwhile, use convenience is guaranteed, and through limiting of the positioning mechanism, the connecting and positioning effect of the holding frame on the embedded part can be effectively guaranteed.

The utility model discloses a concrete pouring device which comprises a pouring pump body and further comprises a connecting frame. And the first motor is arranged on one side of the connecting frame in the length direction, and a driving shaft of the first motor is fixedly connected with a screw rod. According to the scheme, the second motor arranged on one side of the moving base drives the rotating column to rotate, the first electric push rod can be changed into the vertical state from the horizontal state, the pouring pipe is fixed through the fixing mechanism, and the first motor arranged on one side of the connecting frame drives the screw to rotate; the movable seat can perform directional horizontal movement, so that the mode that a pouring pipe is fixed to the surface of a mold through a hoop is replaced, the position and the orientation of the pouring pipe are rapidly adjusted, the pouring pipe does not need to be frequently loosened and fixed, the time spent in the process is saved, the adjustment process of the pouring pipe is simplified, and the production efficiency is improved. Therefore, the effect of improving the practicability of the device is achieved.

The utility model provides tapping equipment for valve accessory production. The tapping equipment for valve accessory production comprises a base and a supporting plate fixedly installed on the top of the base. The electric guide rail is assembled on the supporting plate; the hydraulic cylinder is mounted on the electric guide rail, and a tapping assembly is assembled on the hydraulic cylinder; the circular placing plate is arranged above the base; the cleaning mechanism is arranged on the base and is used for cleaning scrap iron on the circular placing plate; and the rotating mechanism is arranged on the base and the circular placing plate and is used for driving the circular placing plate to rotate. The tapping equipment for valve accessory production has the advantages that scrap iron on the containing plate can be automatically cleaned, and then the machining efficiency can be improved.

The utility model relates to the technical field of personal care equipment, in particular to a water pump assembly and personal care flushing equipment. A water pump assembly comprises a water pump fixing support, the water pump fixing support comprises a main frame, a water pump limiting structure and a buckle piece, the water pump limiting structure is arranged on the main frame, the water pump limiting structure and the main frame jointly define a water pump limiting space, and the buckle piece is arranged on the main frame; the water pump is contained in the water pump limiting space, and the buckling piece is used for being connected with the water pump in a clamped mode so that the water pump can be fixed in the water pump limiting space. According to the water pump assembly, the water pump can be fixed to the water pump fixing support very conveniently and rapidly.

This utility model discloses a blood centrifuge, comprising: a centrifuge body, a receiving groove on one side of the top of the centrifuge body, a centrifuge turntable movably mounted in the receiving groove, a receiving groove on the surface of the centrifuge turntable, fastening components on both sides of the inner wall of the receiving groove, arc-shaped clamping plates in the empty slots on both sides of the inner wall of the receiving groove, a support frame on one side of the arc-shaped clamping plates, and an electric telescopic rod on one side of the support frame. This utility model, by setting up fastening components and positioning blocks, allows centrifuge tubes to be quickly placed into the positioning blocks and fastening components through the receiving groove. The positioning groove has a gradient texture and an anti-slip rubber pad on its inner surface to position the centrifuge tubes and prevent slippage. The electric telescopic rod drives a pushing block, which in turn drives trapezoidal sliders on both sides of the pushing block to slide within a trapezoidal groove in a movable block, thereby moving the movable block and causing the arc-shaped clamping plates to clamp and fix the centrifuge tubes, achieving the purpose of quickly fixing test tubes of different sizes.

The utility model discloses an adjustable electrophoretic spraying device which comprises a supporting frame, the supporting frame is connected to external equipment, an adjusting mechanism is arranged on the supporting frame, the adjusting mechanism comprises a transverse plate, a follow-up block, a threaded sleeve, a threaded ring, a fixing rod, a push disc, an attaching disc, a tension spring and a fixing mechanism, the transverse plate is attached to the supporting frame, and the follow-up block is arranged on the transverse plate. A transverse groove is formed in the supporting frame, the follow-up block is clamped in the transverse groove, the adjusting mechanism allows a user to easily adjust the position of the hook through the ingenious design of a transverse plate, the follow-up block, a threaded sleeve, a threaded ring, a fixing rod, a push disc and a tension spring so as to adapt to workpieces of different sizes and shapes, the transverse plate is tightly attached to the supporting frame, and the adjusting mechanism is convenient to use. The stability of the whole mechanism is ensured, the tension spring keeps continuous tension, and it is ensured that the adjusted position is stable and reliable.

The utility model discloses an external connection structure of a healthy all-in-one machine shell, and belongs to the field of external connection of shells. An external connection structure of a health all-in-one machine shell comprises the health all-in-one machine shell and further comprises a connection port formed in the health all-in-one machine shell, a limiting frame is fixedly connected in the connection port, and an arc-shaped guide plate is fixedly connected to the back of the limiting frame; the connecting piece is detachably connected to the connecting port, a limiting groove is formed in the connecting piece, a limiting column is fixedly connected to the limiting frame, the limiting groove is connected into the limiting column in a clamped mode, and the connecting piece is matched with the arc-shaped guide plate; according to the health all-in-one machine shell, the connecting piece can be more conveniently installed in the connecting port, so that the health all-in-one machine shell can be conveniently fixed to the installation base or a table top, and meanwhile the connecting piece can be disassembled or installed without finding tools.

The utility model discloses a mechanism for judging positive and negative rotation of a pasting type fan applied to a medium-voltage frequency conversion product, which comprises a base and a turntable, and the base is connected with the turntable through a 90-degree limiting bearing; the base and the rotating disc are each divided into four parts, the upper surface of the base is alternately coated with two different colors, and fan-shaped holes are formed in the two spaced parts of the rotating disc. The device can be simply and conveniently adhered to the rotating shaft position of a fan or a unit, and the device is visually colored when rotating forwards and is visually colored when rotating reversely, so that the forward and reverse rotation conditions of the device can be conveniently judged.

The utility model relates to the technical field of magnetic control wheel production equipment, in particular to a rough turning device convenient for fixing a magnetic control wheel, which comprises a base, the inner top wall of the base is fixedly connected with the bottom of a driving part, the inner wall of the driving part is fixedly connected with the outer wall of a lifting part, the back surface of the lifting part is fixedly connected with the front surface of a feeding part, and the feeding part is fixedly connected with the feeding part. The outer wall of the discharging piece is rotationally connected with the inner wall of the rotating piece, the inner wall of the base is slidably connected with the outer wall of the lifting piece, the inner top wall of the base movably abuts against the bottom of the discharging piece, a driving motor is started, the driving motor drives a worm to rotate, the worm drives a transmission gear to rotate, and the transmission gear rotates to drive a threaded rod to rotate; the sliding block slides in the sliding groove, the sliding block slides to drive the discharging frame to ascend, the discharging frame drives the magnetic control wheel to slide to the position of the fixing clamp, the magnetic control wheel is clamped and fixed through the fixing clamp, the magnetic control wheel can be rapidly fixed to the fixing clamp, and convenience is brought to people.

The utility model discloses chemical experiment test tube cleaning equipment, which belongs to the field of chemical instruments and comprises a base, a stand column is fixedly connected to the upper side face of the base, a support assembly is slidably connected to the stand column, and a brush is arranged on the support assembly through a motor. A clamping assembly capable of clamping test tubes of different sizes is arranged at the position, located below the brush, of the stand column, the clamping assembly comprises a fixing frame fixed to the stand column through a positioning plate, a pair of clamping plates used for clamping the test tubes are arranged in the fixing frame, and the opposite faces of the two clamping plates are arranged in a V shape. According to the chemical experiment test tube cleaning equipment, clamping of test tubes of different sizes can be achieved through the clamping assembly, and in the test tube cleaning process, the test tubes of different sizes can be conveniently clamped and fixed, so that the test tubes of different sizes can be conveniently cleaned, and use of the cleaning equipment is facilitated.

The invention discloses a temperature control device for magnesium alloy die casting forming, and relates to the technical field of die casting forming. Comprising a base, a die-casting die system is arranged on the base, the die-casting die system comprises a movable die and a fixed die, cooling and heating pipelines are arranged in the movable die and the fixed die, butt-joint openings are formed in the two sides of the movable die and the two sides of the fixed die respectively, and the butt-joint openings are communicated with the cooling and heating pipelines; a temperature control mechanism is arranged on the base and comprises a temperature control sliding table arranged on the temperature control mechanism in a sliding mode, a support is arranged on the temperature control sliding table, a clearing mechanism is arranged on the support, and cleaning machines are arranged on the two sides of the temperature control sliding table. Temperature control pieces are further arranged on the two sides of the temperature control sliding table respectively, and each temperature control piece comprises two cooling boxes and two hot boxes; the cooling box is used for conveying cooling liquid for cooling control; the hot box is used for conveying hot oil so as to perform heating control; the temperature of the mold can be detected in real time, temperature control adjustment can be conducted in real time, butt joint disassembly and assembly are fast, and follow-up maintenance is facilitated.

The utility model relates to the technical field of Parylene coating, and discloses a PCB coating fixing structure, which comprises a product left and right fulcrum plate, a PCB body, a bottom mounting plate, three short fixing columns and three long fixing columns, the product left and right fulcrum plate is triangular and is provided with accommodating grooves, the middle part of the upper end surface of the product left and right fulcrum plate is provided with a square groove, and the bottom mounting plate is provided with three long fixing columns. A plurality of second annular grooves are annularly formed in the upper end face of the product left-right fulcrum plate, a round hole is formed in the middle of the upper end face of the bottom mounting plate, a plurality of fan holes are annularly formed in the upper end face of the bottom mounting plate, and a plurality of first annular grooves are annularly formed in the upper end face of the bottom mounting plate. According to the utility model, the products to be processed can be orderly and stably fixed for coating, the space of the coating cavity can be utilized to the greatest extent in space, and the compartments between the products are consistent, so that the film layer is more uniform and better in consistency when acting on the products, the safety is higher, the reliability is higher, and the risk that the products fall off is completely eradicated.

The utility model discloses a slope earthwork construction temporary protective net quick fixing structure, which belongs to the field of protective net fixing, and comprises a fixing shell, a rope is clamped in the fixing shell, the middle of the upper surface of the fixing shell is in threaded connection with a clamping mechanism, and two sides of the bottom of the fixing shell are fixedly connected with mounting mechanisms. One end of the rope is fixedly connected with a bolt, and the outer surface of the bolt is in threaded connection with a nut; through cooperative use of the devices, the protective net fixing device is simple in structure and convenient to operate, when a protective net is fixed, ropes are crossed on the protective net, the ropes are rewound on the fixing shell to stretch and fix the protective net after crossing is completed, the ropes are reinforced through the clamping mechanism, then the ropes are pulled outwards through the mounting mechanism, and then the protective net is fixed. According to the fixing mode, welding is conducted through an external tool, fixing is directly conducted in a threaded mode, the protective net can be fixed more rapidly, and the stability is improved.

The embodiment of the present application provides a prefabricated building construction hoisting device and a hoisting method thereof, and relates to the field of construction hoisting technology. A prefabricated building construction hoisting device and a hoisting method thereof, including a bottom support frame, a load-bearing plate, a hoisting hole, a top support plate, a side clamp, a limit plate and a high-stability and quick fixing component, starting the double-axis motor can drive the top support plate to move up and down through the screw rod and the matching rod, and can drive the top support plate to be close to the top of the prefabricated building, when the double-axis motor is started, it can drive the two side clamps to move toward the center, so as to clamp and fix the prefabricated building, and achieve the effect of fixing and installing the prefabricated building more quickly, and the double-axis motor can drive the limit plate to rotate with the rotating shaft as the center, and the limit plate will move to one side of the connecting rope, thereby improving the stability of the connecting rope, preventing its shaking or shaking from affecting the construction, and improving the practicality of the hoisting device.

This utility model relates to the technical field of pipe processing equipment and discloses a pipe fitting spacing cutting device with an adjustable positioning module. This pipe fitting spacing cutting device with an adjustable positioning module includes a base and a cutting machine. The cutting machine includes a saw blade. The top of the base is fixedly connected to the cutting machine by bolts. An arched block is fixedly connected to the top of the base. The arched block has a through hole running horizontally through it. This device has advantages such as enabling rapid positioning of pipe fittings and adjustable cutting length, adapting to different pipe diameter requirements, improving cutting accuracy, and reducing human error. It solves the problem that fixed baffles cannot quickly adapt to different pipe diameters or cutting length requirements, requiring frequent manual adjustments, leading to low production efficiency. Furthermore, manual measurement is prone to introducing human error, and marking may cause cutting deviations, affecting the consistency of pipe fitting dimensions. Especially in mass production, accumulated errors will reduce product quality.

The utility model discloses a tubular motor fixing framework, which comprises a main body assembly and a fixing assembly, the main body assembly comprises a motor body, a clamping sleeve and a fixing sleeve, the clamping sleeve is arranged in the motor body, the fixing sleeve is sleeved on the outer side of the clamping sleeve, and the fixing assembly is arranged on one side of the motor body and comprises a fixing part, an unlocking part, a moving part and an extrusion part. The fixed part is located in the clamping sleeve, the unlocking part is arranged in the motor body, the movable part is located in the clamping sleeve, and the extrusion part is arranged on one side of the movable part. The lifting device has the advantages that the main body assembly is used for driving the rolling gate to ascend and descend, the fixing sleeve can be simply and rapidly fixed to the outer side of the tubular motor through the fixing assembly, and therefore the situation that time and labor are consumed in operation is avoided; and the situation that the connection between the fixing sleeve and the tubular motor is loosened in the using process is avoided.

The utility model discloses a magnetic fixed type adjustable centering instrument suitable for guide centering adjustment, which comprises an annular base, an adjustable bottom plate, a display panel, a front-back adjusting bolt, an up-down adjusting bolt, a horizontal adjusting bolt, a gradienter, a light source and a switch, the annular base is arranged at the left end of the adjustable bottom plate, and the display panel is arranged at the right end of the adjustable bottom plate; a magnetic body is arranged on the annular base; a front-back adjusting bolt is arranged on the adjustable bottom plate in the horizontal direction, an up-down adjusting bolt is arranged on the top, and a horizontal adjusting bolt is arranged on the right end face; a gradienter is arranged in the middle of the top of the display panel; a light source and a switch are arranged at the right end of the top of the display panel; and scale marks are arranged on the display panel. According to the utility model, the fixation is convenient and fast, the guide centering inspection is visual and quantitative, and the guide installation precision is high; the device can be used for inspection of inlet guides and outlet guides. The guide centering device is simple in structure, reliable in work, easy and convenient to operate and suitable for guide centering adjustment.

The utility model relates to water cooling radiator technical field, concretely is a kind of broken code screen water cooling radiator, the water cooling radiator includes heat dissipation device, it is mainly used for heat dissipation, the heat dissipation device includes heat dissipation plate, the heat dissipation plate side is provided with several flow guide mechanism, and heat dissipation plate inside is provided with fin, side is provided with several for the limiting mechanism of fixed flow guide mechanism;Heat conduction device, it is mainly used for heat conduction, the heat conduction device is communicated with heat dissipation device, and heat conduction device includes two hoses, two the hose one end is connected with heat dissipation plate, and the other end is connected with water pump, the water pump side is provided with broken code screen body. The utility model has simple structure, reasonable in design, and it is convenient for user to disassemble and assemble cooling row and fan, simple operation also has the advantages that the efficiency of user cleaning cooling row inside dust is improved, it is worth promoting and use.

The utility model discloses a metal plate welding working table which comprises a table plate, a plurality of supports are annularly arranged at the bottom of the table plate, the table plate is separated from the ground under the action of the supports, the table plate is round, a groove is formed in the plate face of the table plate, the groove is located on the diameter line of the table plate, and the support is arranged on the table plate. A groove is formed in the table plate, a screw rod is rotationally arranged in the groove, one end of the screw rod extends to the outside of the table plate, a rack plate is installed on the outside of the table plate, a first servo motor for driving the screw rod to rotate is installed on the rack plate, a shaft hole is formed in the axis of the table plate, a rotating shaft is rotationally installed in the shaft hole, and the rotating shaft is connected with the rack plate. A bearing is arranged between the rotating shaft and the shaft hole in a matched mode, and a servo gear motor is installed at the bottom of the platen. The device can be used for quickly fixing the metal plate.

The anti-riot shield capable of being quickly spliced comprises an anti-riot shield body, two sets of mounting frames are fixedly connected to one side of the anti-riot shield body, lifting grooves are formed in the mounting frames, mounting blocks are slidably connected to the interiors of the lifting grooves, a first threaded rod is in threaded connection with the interior of the mounting block on one side, and a second threaded rod is in threaded connection with the interior of the mounting block on the other side. The tail portion of the first threaded rod is rotationally connected with a side mounting plate, a second threaded rod is slidably connected into the mounting block on the other side, one end of the second threaded rod is fixedly connected with the other side mounting plate, the other side of the mounting plate is fixedly connected with locking teeth, and the two sides of the anti-riot shield are fixedly connected with fixing teeth matched with the locking teeth. A connecting plate is fixedly connected between the mounting plates on the two sides, two mounting cylinders are fixedly connected to one side of the connecting plate, and limiting rings are slidably connected into the mounting cylinders, so that a grip and a fixing handle of the anti-riot shield can be conveniently and quickly mounted, and the fixing device can be adjusted according to the length of the forearm of a person.

The utility model provides a vacuum chip suction device for a drilling and tapping machine, which relates to the technical field of chip suction equipment and comprises a cutting table, a base table detachably connected to the back of the cutting table, a dust collection box fixed at the bottom of the base table and a support column fixed at the top of the base table. If chippings are not cleared away in time, follow-up punching machining can be affected, dust accumulation damage to equipment can be caused, a vacuum environment is required when part of workpieces are machined, the air density is extremely low, a drilling and tapping machine uses water to cool a drill bit, and a cutting platform is generally inconsistent in height in order to enable water to flow out, so that the whole cutting platform is in an inclined plane. The height of an existing chip suction device is fixed, when chip suction operation is carried out, due to the fact that the height is fixed, the chip suction effect at the high position of an inclined plane is good, the chip suction effect at the low position is poor, chips and dust cannot be efficiently and thoroughly removed at the same time, and dust which is not removed can raise dust in a machining workshop and pollute the air environment.

The invention discloses a turning device for metal roller machining, which comprises a turning device pedestal, and further comprises a filter hopper, and the filter hopper is detachably mounted at the top of the turning device pedestal; the side plates are oppositely arranged on the two sides of the filter hopper in the width direction. According to the scheme, when the filter hopper needs to be disassembled, firstly, a sleeving seat is horizontally moved, at the moment, a spring I arranged in a fixed seat I generates compression deformation, so that a clamping plate arranged on the surface of a side plate can be separated from a clamping groove formed in the sleeving seat, and then a connecting seat can rotate around a rotating roller by a certain angle; and the sleeving seat can be separated from the surface of the side plate after being rotated, so that the filter hopper can be moved out of the top of the turning device pedestal, and the cleaned filter hopper can be quickly fixed, so that the influence of accumulated scraps on normal filtration of the filter hopper is avoided, the normal turning work is ensured, and the overall practicability of the device is improved.