42results about How to "Avoid drooping" patented technology

A hanger includes an elongated member having a rod with a plurality of positioning portions spaced in a vertical direction. An engaging portion is formed on a bottom of the rod for engaging with an engagement portion. A coupling block includes a connecting head. The coupling block further includes a body and a resilient plate that are located below the connecting head. The body and the resilient plate together define a passageway having an opening in a lower end thereof. The rod is slideable in the passageway in the vertical direction. The resilient plate includes a free end having a hook that is spaced from the body. At least a portion of the hook extends into the passageway. The hook is releasably engaged with a selected one of the positioning portions. The resilient plate is operable to disengage the hook from the positioning portions.

A guide rail machining device comprises a working table. A drilling tool main shaft driven by a DC synchronous motor is arranged on the working table, arranged on a transverse guide rail and connected with a lead screw and nut mechanism driven by a motor. A supporting table for supporting a workpiece and a pressing cylinder for fixing the workpiece are installed on the working table. A pull rod for pulling the workpiece is arranged at the front end of the working table. By means of the structure, the guide rail is moved through the pull rod and fixed through the pressing cylinder, the drilling tool main shaft is only moved transversely without being moved longitudinally, and therefore the hopping of the drilling tool main shaft is reduced, and the machining quality of the guide rail is improved. The lead screw and nut mechanism driven by the motor mainly comprises a motor, a lead screw and a nut pair, wherein the motor drives the lead screw to rotate and drives the nut pair to move as well.

The invention relates to a metal 3D printer which comprises a rack, a working table, a working table moving mechanism, a printing head moving mechanism, a printing head, a feeding mechanism and an electric control box. The metal 3D printer is characterized in that the working table moving mechanism comprises a working table transverse moving mechanism driving the working table to move transversely, a working table longitudinal mechanism driving the working table to move longitudinally, a working table vertical rotating mechanism driving the working table to rotate vertically, and a working table horizontal rotating mechanism driving the working table to rotate horizontally. The printing head moving mechanism comprises a printing head vertical linear moving mechanism driving the printing head to move vertically, a printing head horizontal rotating mechanism driving the printing head to rotate horizontally, and a printing head vertical rotating mechanism driving the printing head to rotate vertically.

The invention relates to a lifting supporting wheel assembly and a cantilever sliding door, and belongs to the technical field of sliding doors. The lifting supporting wheel assembly is characterized by comprising a case, a slider-crank mechanism, a drive mechanism and a lifting wheel; the case is a hollow cavity with an opening in the bottom face, and a guide rod is transversely arranged in the case; the slider-crank mechanism comprises a slider, a crank and a connecting rod connecting the slider and the crank through two rotating pairs; the slider is arranged on the guide rod in a sliding and sleeving manner, the upper portion of the crank is rotationally connected to the case, and the lower portion of the crank is hinged to the lifting wheel; and the drive mechanism is used for driving the slider to slide. Compared with the prior art, the lifting supporting wheel assembly and the cantilever sliding door have the following beneficial effects that the slider-crank mechanism can be driven by the drive mechanism to run, and meanwhile the lifting wheel is driven to ascend and descend. When the lifting wheel abuts against the ground, a cantilever door body can be prevented from hanging down and deforming. Meanwhile, the lifting wheel can be folded upwards and hung above the ground, the suspension vision effect of the cantilever door body cannot be affected, or stable running of the door body cannot be hindered.

The invention is applicable to the field of bed position control, and provides a bed position control system and a control method of the bed position control system. A programmable multi-axis control driver is in communication connection with a vertical moving servo driver through a field bus communication loop; the programmable multi-axis control driver controls a horizontal moving servo system to move the bed position in the horizontal direction according to a horizontal moving control instruction; the vertical moving servo driver receives a vertical moving control instruction sent by the programmable multi-axis control driver and controls a vertical moving servo system to move the bed position in the vertical direction; a position limiting switch limits the moving range of the bed position; when the bed position moves to touch the position limiting switch, the position limiting switch sends touch information to the programmable multi-axis control driver; and the programmable multi-axis control driver controls the bed position to stop moving. The servo driver and a host system are connected through a field bus; the use cost of the field bus of the bed position control system is reduced; and the characteristics of high precision equipment synchronism, optional cable redundancy and functional security protocols are realized.

The present invention relates to a fluid supply apparatus including: an inner tube in which a plurality of holes are arranged to distribute a fluid supplied from a supply unit and both ends of which are sealed to have a predetermined length; and an outer tube which is coaxially or non-coaxially arranged with respect to the inner tube and in which a plurality of slots are arranged to inject the fluid distributed to the inside through the holes to the outside and which have substantially the same length as the inner tube.

The invention discloses an assembled wooden door comprising a wooden door base plate and a fixing frame. The wooden door base plate is connected into the fixing frame in a clamped mode and comprises afirst side base plate body, an inner core plate and a second side base plate body. The inner core plate is located between the first side base plate body and the second side base plate body. A firstdecorating layer is arranged on one side of the fixing frame. A second decorating layer is arranged on the other side of the fixing frame. The fixing frame comprises a limiting frame and an anti-collision frame. The limiting frame is connected into the anti-collision frame in a clamped mode and comprises an upper limiting frame body and a lower limiting frame body. A manufacturing method of the assembled wooden door comprises the following steps that (1) the wooden door base plate is prepared; (2) the fixing frame is prepared; (3) sound insulation pads are prepared; (4) the decorating layers are prepared; and (5) the wooden door is assembled. The assembled wooden door is ingenious and reasonable in overall structural design, the structural strength and stability of the wooden door are improved, droop deformation of the wooden door is effectively prevented, meanwhile, the four side edges of the wooden door can be protected through the design of the fixing frame, the service life of thewooden door is prolonged, and the comprehensive utilization rate is increased.

The invention discloses a locking hook assembly for hooking and locking a first object and a second object in relative movement. The locking hook assembly comprises a first locking hook and a second locking hook which are respectively arranged on the first object and the second object, and the first locking hook and the second locking hook are oppositely arranged and can elastically move, wherein by relative moment of the first object and the second object, the relative slip of the first locking hook along the second locking hook enables the first locking hook and / or the second locking hook to elastically move, so that the first locking hook can be selectively hooked and locked with or separated from the second locking hook. The invention also discloses a folding arm support of an engineering machine using the locking hook assembly. Sagging of a lower joint arm when the folding arm support is in a folded state can be effectively prevented. In addition, the invention also discloses concrete pumping equipment using the folding arm support of the engineering machine.

The invention discloses a suspension-free integrated ceiling. The suspension-free integrated ceiling comprises gusset plates, staggered floor beams, side shrinking strips, keels and electric appliance hangers; each gusset plate comprises a gusset plate plane, strengthening ribs, a gusset plate clamping slot and a gusset plate fixing slot; each staggered floor beam comprises a first splicing buckle, a first leveling structure, a first clamping slot, a first strengthening slot, a second splicing buckle, a second leveling structure and a gusset plate bearing platform; each side shrinking strip comprises a side shrinking splicing buckle, a side shrinking leveling structure and a side shrinking gusset plate bearing table; each keel comprises a first flatting structure, a second flatting structure, a bearing slot, a first strengthening frame, a second strengthening frame, splicing clamping slots and a screw installation slot. By means of the suspension-free integrated ceiling, the step of hanging installation suspension rods can be avoided in the staggered floor beam installation process, and the integrality and the attractiveness of overall indoor ceiling installation can be met.

The invention discloses a safety protection type new energy charging pile. A control panel is arranged on one side of the front surface of a charging pile main body; an accommodating vertical box is fixedly connected to the position of one side of the charging pile main body; guide vertical grooves are formed in the middles of the two sides of the interior of the accommodating vertical box; and alimiting bolt is connected with the top, corresponding to the guide vertical grooves, of the accommodating vertical box through a thread in a penetrating manner. According to the charging pile, a cross beam is erected at the top of the front face of the storage vertical box through a completely-lifted supporting turnover plate, so that a power transmission cable is distributed at the top of the supporting turnover plate in the using process of the charging pile, an arch-shaped channel is formed in one side of the accommodating vertical box, a user can pass through the bottom of the supportingturnover plate in the charging process, the power transmission cable is effectively prevented from being drooped between an automobile and the charging pile main body in the using process of the charging pile, the phenomenon that the user is stumbled and injured by the power transmission cable in the process of using the charging pile is effectively avoided, and the using process of the charging pile is optimized.

The invention discloses a steel lifting device. The steel lifting device comprises a lifting plate device, a driving device, a steel lifting roller track and a detecting device; and the detecting device can transmit a signal to control the driving device to lift up or put down the lifting plate device. According to the steel lifting device, rolled pieces which are suspended out of the roller trackcan be lifted up and be kept at the same plane with the roller track, the problems of bending and slouch head of the rolled pieces due to sawing-cutting force in the sawing-cutting process are reduced maximally, and safety in the rolling process is greatly improved; and the structure is simple, applicability is high, the product coverage range is wide, and the steel lifting device can be appliedto different types and specifications of rolled pieces such as profile steel, big sticks and other profiles, and can be widely used in mechanical equipment with the same functional requirements.

The invention discloses a coating machine which comprises a rack, a coating head, a comma doctor roll, a glue retaining mechanism and a driving mechanism, wherein the comma doctor roll and the glue retaining mechanism are erected on the rack; the coating head is arranged at a glue scraping position of the comma doctor roll; the comma doctor roll is positioned above the glue retaining mechanism; an output shaft of the driving mechanism is in transmission connection with the comma doctor roll; and a clamping mechanism is arranged on the comma doctor roll and is used for clamping the comma doctor roll. According to the clamping mechanism, the comma doctor roll is supported, so that the comma doctor roll can be used for a long time and does not easily sag or deform, and the coating quality of the product can be effectively guaranteed.

The embodiment of the invention provides a transition device. The transition device includes a transition device body part, and the transition device body part is arranged between an upstream plate blank conveying belt for conveying plate blanks and a downstream plate blank conveying belt for conveying the plate blanks in the conveying direction of the plate blanks. The transition device also includes a supporting part used for supporting the transition device body part to make the whole surfaces of the transition device body part positioned at the same plane in the conveying direction of theplate blanks. The embodiment of the invention also provides a plate blank conveying system including the transition device.

The invention provides an improved steel pipe scaffold straightening device for building construction, relates to the technical field of steel pipe straightening, and solves the problem that straightness of a steel pipe is affected due to the fact that no supporting device is arranged at an outlet end of an existing straightening device and the droop phenomenon of the steel pipe discharged from the outlet occurs. The improved steel pipe scaffold straightening device for building construction comprises a bearing mechanism, wherein a straightening mechanism is fixedly mounted on the right side of the top end surface of the bearing mechanism, and an auxiliary supporting mechanism is in sliding connection with the left end of the straightening mechanism. By means of the auxiliary supporting mechanism, when the scaffold steel pipe is straightened by the straightening mechanism and driven out from a round through hole A formed in the left end surface of a rectangular shell, the scaffold steel pipe is inserted into a round through hole B and makes contact with a roll ball B in the round through hole B, so that the scaffold steel pipe is supported, and the droop phenomenon of the steel pipe is effectively prevented.

The invention discloses a rotary welding device for preventing the middle part of a tower crane base section from drooping during welding, which comprises a base section, and further comprises a driving mechanism, a left support, a middle support, a right support and a rotary frame, the left support and the right support are fixedly arranged on the left side and the right side respectively, the driving mechanism is fixedly arranged on the left support, the middle support comprises a supporting seat and a supporting rotary drum, and the supporting seat is fixedly arranged on the supporting rotary drum. The supporting seat is fixedly arranged at the middle position between the left support and the right support, a plurality of rollers capable of rotating freely are fixedly arranged on the supporting seat, the supporting rotating cylinder is placed on the rollers, the outer circle of the supporting rotating cylinder is in rolling contact with the rollers, the rotating frame penetrates through the supporting rotating cylinder and is fixed to the supporting rotating cylinder in the radial direction, and the left end of the rotating frame is fixedly connected with the driving mechanism. And the right end is rotationally connected with the right support. The motor is used for driving the base joint to rotate, supporting force can be applied to the middle of the base joint when the base joint is static and rotates, the middle of the base joint is prevented from drooping and deforming, and it is ensured that the product quality reaches the expected quality standard.

The invention discloses a method for reducing the negative bending moment of a T-type rigid bridge. The method comprises the steps that in the design stage, an upward jacking load design value is calculated according to a counter force design value of side pier supports and a set reducing value of the negative bending moment of a main beam arranged at a main pier, and an upward jacking displacement design value sdesign is calculated according to the upward jacking load design value; in the construction stage, the upward jacking displacement design value sdesign is corrected according to a construction error of the height of the cantilever end of the T-type rigid bridge to obtain an actual upward jacking displacement value sactual, an actual upward jacking load F is determined according to the actual upward jacking displacement value sactual, then a jack is adopted to apply the actual upward jacking load F at the cantilever end of the T-type rigid bridge, and the T-type rigid bridge is made to meet the requirement of a bridge line. According to the method, the negative bending moment of the main beam arranged at the bridge pier is reduced, stress is reasonable, and materials are saved; the counter force of the side pier supports is appropriately increased, and disengaging and dropping of the side pier supports can be effectively prevented; main beam drooping deformation generated during construction is effectively solved, and the driving comfort is improved.

The invention relates to a sun-shading roller shutter structure and a vehicle. The sun-shading roller shutter structure comprises a mounting base frame, a reel and a lifting support seat. The mountingbase frame is used for providing mounting positions for the reel, the lifting support seat and other components by the sun-shading roller shutter structure and fixing the sun-shading roller shutter structure behind a windshield; the reel is rotatably arranged on the mounting base frame, and a roller shutter is wound on the reel; the lifting support seat is arranged on the mounting base frame andis used for lifting the reel and the roller shutter wound on the reel so as to prevent the middle part of the reel from drooping and deforming. According to the sunshade roller shutter structure, thelifting support seat is additionally arranged and thus the reel can be effectively supported; the overall strength of the sun-shading roller shutter structure is better; in addition, the abnormal sound problem caused by deformation, vibration and other reasons is solved, the length of the sunshade curtain can be increased to 2 m, and the integrity of the sunshade cloth cannot be affected; the common sunshade curtain cloth can support at least twenty thousand times of endurance tests without failure, and the use reliability of the whole life cycle of the vehicle can be completely met.

The invention provides a grid structure, a panel assembly and an air conditioner. The grid structure comprises grid bars, a grid frame and clamping hooks, wherein the multiple grid bars are arranged,the grid bars are arranged on the grid frame, first clamping grooves are formed in the grid frame, one ends of the clamping hooks are connected with the first clamping grooves in a clamped mode, and the other ends of the clamping hooks are provided with clamping parts which are connected with a fixing base for fixing the grid structure in a matched and clamped mode. According to the grid structure, the first clamping grooves are formed in the grid frame where the grid bars are installed so that the grid structure can be fixed through penetrating arrangement of the clamping hooks, and then thegrid structure can be conveniently disassembled; and a grid can be fixed by arranging the plurality of first clamping grooves and clamping hooks in a matching manner, so that the grid is prevented from drooping and deforming, and meanwhile, the ventilation area is increased.

The invention provides a double-cross-beam UV flat plate printing machine. The machine comprises a machine frame, a nozzle device and an ink supply device; a worktable is arranged on the machine frame; two Y-axle support beams are arranged on the upper surfaces of two ends of the worktable separately; two parallel X-axle cross beams are arranged above the two Y-axle support beams; spraying cars are arranged on the lower surfaces of the adjacent ends of the two X-axle cross beams; at least one Y-axle guide rail is arranged on the outer walls of the two Y-axle support beams; at least one spraying car clamping groove combined with the Y-axle guide rails is arranged on the inner walls of the spraying cars; the spraying cars can slide relative to the Y-axle support beams; the inner walls of thetwo X-axle cross beams are each provided with at least one X-axle guide rail; and the nozzle device can slide relative to the X-axle cross beams. The structures of the two X-axle cross beams are adopted to effectively prevent the dropping deformation of the X-axle cross beams caused by the gravity of the nozzle device as well as self-weight of the X-axle cross beams, so that the stability of theX-axle cross beams is not changed, and the printing quality is improved advantageously.

The invention relates to strong viscous mouse adhesive. The strong viscose mouse adhesive is used for catching mice and is characterized by comprising, by weight, 12-18 parts of naphthenic oil, 10-15 parts of SEBS (styrene-ethylene / butylenes-styrene block copolymers) HS105, 15-20 parts of SEPS 2825, 18-25 parts of No.1 C5 petroleum resin, 12-18 parts of pentaerythritol ester 145 and 14-30 parts of hydrogenated petroleum resin FP100. The strong viscous mouse adhesive has the advantages that the strong viscous mouse adhesive is good in resilience, tensile property and weather resistance, free of vertical flow phenomena and stable in performance, and the viscosity of the strong viscous mouse adhesive can keep unchanged for a long time.

The invention provides a dental chair for a dyskinesia patient. The dental chair comprises slide wrists, pressing frame insertion plates, an ejecting frame, ejecting frame insertion rods, a rotating rod, rotating plates, a threaded shaft sleeve and insertion sleeves. Shaft sleeves are welded and fixed to the top ends of the two ejecting frame insertion rods at the rear end respectively. Two connecting supporting plates are symmetrically welded to the two ends of the rotating rod respectively. The rotating rod is rotationally connected with two shaft sleeves in a sleeved and inserted mode through rotating shafts on the two inner sides of the tail ends of the two connecting supporting plates. The rotating rod is rotationally sleeved with the two rotating plates in a spaced mode. Two threadedshafts are inward supported by and welded to the inner walls of the rear ends of the two rotating plates respectively. The threaded shaft sleeve is rotationally connected between the two threaded shafts in a threaded and sleeved mode. By arranging pressing hanging plates, the two pressing hanging plates can be pushed by threads of two pushing bolts to slide to one side along with pressing platestill the head of a patient is pressed and positioned between a pressing frame and the ejecting frame, and therefore the head is stably limited and fixed.

The embodiment of the invention provides a transition device. The transition device comprises a transition device body part. The transition device body part is arranged between an upstream plate blankconveyor belt for conveying plate blanks and a downstream plate blank conveyor belt for conveying the plate blanks in the plate blank conveying direction. The transition device further comprises clamping parts used for clamping the transition device body part and tensioning mechanisms used for driving the clamping parts to tension the transition device body part. The embodiment of the invention further provides a plate blank conveying system comprising the transition device.