155results about How to "Effective clamping and fixing" patented technology

The invention discloses an anti-displacement cold stamping drawing mold, and aims to provide a drawing mold capable of effectively and quickly positioning a drawing plate, effectively protecting the plate and guaranteeing the finished product quality. The anti-displacement cold stamping drawing mold comprises a concave mold positioned on the upper side, and a convex mold positioned on the lower side; the concave mold includes a molding table; a plate cavity is formed in the convex mold; multiple pre-limiting parts are arranged on the concave mold; the pre-limiting parts include pre-limiting cylinders and positioning frames; the positioning frames are provided with pressing bars rotationally connected with the positioning frames through middle parts; transverse slide holes are formed in the pressing bars; rotating shafts are arranged in the transverse slide holes; piston rods of the pre-limiting cylinders are rotationally connected with the rotating shafts; and a pre-limiting anti-interference cavity is formed in the concave mold. The anti-displacement cold stamping drawing mold has the following beneficial effects: the anti-displacement cold stamping drawing mold can provide effective clamping and fixation to guarantee smooth actuation of previous drawing process, has an automatic ejecting structure for automatically realizing ejection after mold separation, and can continuously fix the plate after failure of a pre-positioning structure to realize automatic deviation when the mold is to be closed, so that the smoothness of mold closing process is maintained.

The invention relates to a novel building construction cutting machine. The novel building construction cutting machine includes supports, a base, and a top plate; the front side and the back side of the top plate are connected to the base through a front support rod and a back support rod; a hydraulic cylinder is arranged on the bottom end of the top plate; the bottom end of a piston rod of the hydraulic cylinder is connected to a support plate; upper telescopic rods are connected between the top plate and the support plate; a first lower telescopic rod, a second lower telescopic rod, a first pressing block and a second pressing block are arranged on the bottom end of the support plate; spiral springs sleeve the first telescopic rod and the second telescopic rod; a motor is arranged on the right end of the support plate; a cutting disc is arranged on the right end of an output shaft of the motor; a base V-shaped groove is formed in a top plane of the base; a first concession through opening and a second concession through opening are formed in the base under the first pressing block and the second pressing block; a third concession through opening is formed in the base under the cutting disc; and the right end of the base is connected to a horizontal telescopic rod and a limiting plate. The novel building construction cutting machine is easy and fast to operate, can effectively fix profiles, can be flexibly adjusted so as to meet the different cutting length demands.

The invention relates to the technical field of medical devices, and discloses a head fixing device for the neurosurgery department. The head fixing device comprises a bottom plate, a fixed barrel ismounted in the middle of the upper end of the bottom plate, a lead screw is mounted in the fixed barrel, a lifting disc connected to the middle of the lead screw through a threaded structure and lifting rods mounted at the two ends of the lifting disc; the lifting rods penetrate through limiting grooves arranged at the middles of the two ends of the fixed barrel and are connected with traction ropes; a fixed plate is arranged on the upper end of the fixed barrel, traction frames are installed at the two sides of the lower end of the fixed plate, a rotating shaft is arranged in the middle of the lower end of each traction frame, and a traction wheel is installed at the middle of each rotating shaft, guide grooves are formed in the upper end of the fixed plate, guide springs are installed atthe bottom ends in the guide grooves, guide columns are installed at the upper ends of the guide springs, the upper ends of the guide columns penetrate through a top plate arranged at the upper end of the fixed plate and are connected with a headrest, the two ends of the top plate are hinged with clamping frames through joint shafts, and side pillows are arranged on the inner sides of the clamping frames. According to the head fixing device, the effective clamping and fixing effect of the clamping frames on the head is achieved, and adaptive adjustment can be conducted according to the headsof different sizes.

The invention discloses a drilling device for processing a ball-milling iron casting. The drilling device comprises a machine body shell, a main support table, a drilling workbench, universal clampingassemblies, an auxiliary support assembly and a drilling assembly, the drilling assembly is mounted on one side of the upper end surface of the main support table, the drilling workbench is arrangedon one side, close to a drill, of the upper surface of the main support table, the universal clamping assemblies and the auxiliary support assembly are both used for balancing and fixing a to-be-processed ball-milling iron casting, the universal clamping assemblies and the auxiliary support assembly are fixed on the main support table through the drilling workbench, the two groups of universal clamping assemblies are provided, and the auxiliary support assembly is fixedly arranged between the two groups of universal clamping assemblies through bolts.

The invention discloses a repairing device applied to a multi-main-grid photovoltaic module, which comprises a base, wherein a cross beam is supported and fixed on the surface of the top end of the base, a motor is fixed to the surface of one side of the cross beam, an output shaft of the motor is rotationally connected with a lead screw, one end of the lead screw penetrates through the cross beamand extends into an inner cavity of the cross beam, a threaded moving block is connected to a bearing of the lead screw in a sleeving mode, and an infrared welding lamp box is fixed to the front surface of the threaded moving block; and a lubricating sleeve and a cleaning sleeve are sequentially fixed to the surfaces of the two sides of the threaded moving block from left to right and rotationally connected to the outer wall of the lead screw in a sleeving mode. By arranging the lubricating sleeve, the surface of the lead screw can be conveniently and efficiently lubricated, and the working efficiency of the device is improved; through the arrangement of the cleaning sleeve, the surface of the lead screw can be conveniently and rapidly cleaned; and through the arrangement of the screw, the multi-main-grid photovoltaic module can be conveniently and efficiently clamped and fixed.

The invention discloses a dispersion machine for a UV radiation treatment agent capable of setting a stirring range. The dispersion machine comprises a base, a supporting top plate, a screw, a movement slide block, a clamping plate, a screw rod and a stirring part, wherein the movement slide block is connected onto the screw by virtue of an internal thread through hole in a sleeving manner; a stirring part is fixedly connected at the bottom end of the movement slide block; a plurality of internal thread mounting holes are uniformly formed in the supporting top plate; a switch mounting seat isdetachably mounted on the internal thread mounting holes by virtue of connecting bolts; a change-over switch is arranged on the switch mounting seat; a supporting plate is fixedly arranged on the movement slide block in a bolted connection manner; and a touch rod is fixedly arranged on the top of the supporting plate. The dispersion machine disclosed by the invention is simple in structure and convenient to use, and materials in the charging tank can be stirred in a specific range by the stirring part, so that the materials in the charging tank can be uniformly and fully stirred.

The invention relates to a novel logistics stacking box which comprises a box body. A first partition plate is embedded in the box body. The left side and the right side of the first partition plate are connected with the left wall and the right wall of the box body in a sliding manner respectively. A left bar-shaped locating hole and a right bar-shaped locating hole are formed in the upper portion of the left wall of the box body and the upper portion of the right wall of the box body respectively. A left locating bolt and a right locating bolt are arranged on the left side and the right side of the first partition plate respectively. A second partition plate and a third partition plate are embedded between the front wall of the box body and the first partition plate. At least one telescopic rod is connected between the second partition plate and the third partition plate, wherein the outer portion of the telescopic rod is sleeved with a spiral spring. An upper bar-shaped locating hole and a lower bar-shaped locating hole are formed in the upper portion and the lower portion of the front wall of the box body respectively. An upper locating bolt and a lower locating bolt are arranged on the second partition plate. By means of the structure, cargos placed in the novel logistics stacking box can be effectively clamped and fixed, and therefore the use performance of the stacking box and storage and transportation safety of the cargos are greatly ensured.

The invention relates to the technical field of logistics, and discloses a novel logistics tray. The novel logistics tray comprises a base plate, wherein a driving mechanism is fixedly arranged in the base plate. According to the novel logistics tray, through the arrangement of the base plate, a top plate, movable grooves, a sliding seat, a lower fixing plate, an upper fixing plate, a rolling shaft and other structures, goods are placed on the surface of a cross-shaped bearing plate, and a movable rod moves downwards under the gravity action of the goods; the movable rod moves to enable a threaded rod in the movable rod to drive a driving gear to rotate horizontally, and the driving gear drives a winding roller to rotate through a driven gear, so that a pull rope is wound on the surface of the winding roller; the pull rope drives the sliding seat to move inwards through a connecting plate while being wound, so that the rolling shaft is tightly attached to the outer side of the goods, the goods can be effectively clamped and fixed, and the possibility that the goods slide and fall in the transportation process is reduced; and meanwhile, a worker does not need to manually and actually fix the goods, so that the novel logistics tray is convenient to operate and use by the worker.

The invention relates to the technical field of metallographic cutting, in particular to a clamping and positioning device for cutting a metallographic sample and a clamping and positioning method thereof. The clamping and positioning device comprises a support mechanism and a clamp mechanism, wherein the support mechanism comprises a support base, a support, a sliding sleeve, a sliding sleeve adjusting and locking assembly, a sliding block and a locking base, and the clamp mechanism comprises a supporting block, an upper clamping block, a lower clamping block, a jacking screw, two supportingguide rods and a plurality of pressing screws. When a metallographic cutting machine is used for cutting the special-shaped sample, the clamping and positioning device can effectively clamp and fix the special-shaped sample, the sample is firmly locked, thus loosening or falling in the cutting process is avoided, the sample cutting is precise without damaging equipment, the relative positions of the sample and the cutting knife can be conveniently and flexibly adjusted, and precise positioning is realized, so that the required sample part can be cut, the cutting requirement is met without frequently replacing a clamp, the labor intensity is reduced, the cutting efficiency is improved, and the equipment is effectively maintained.

The invention discloses a circuit board drilling positioning device. The circuit board drilling positioning device comprises a bottom plate, wherein a placement table is fixedly connected to the rightside of the top of the bottom plate; a side plate is fixedly connected to the rear end of the right side of the top of the bottom plate; and a top plate is fixedly connected to the top of the side plate. According to the circuit board drilling positioning device, a fixed plate, a first threaded rod, a nut, a pull plate, an adjusting clamping plate, a first limiting block, a box body, a stepping motor, a second threaded rod, a threaded block, a movable plate, a push rod, a movable clamping plate, a second limiting block, a sliding groove, a sliding block, a bearing and a buffer pad are arranged and cooperate with one another, so that the advantage of good positioning effect on a circuit board is achieved, when the circuit board is drilled and positioned, the circuit board can be effectively clamped and fixed, the sliding displacement of the circuit board is prevented, meanwhile, the drilling damage of the circuit board is prevented, meanwhile, adjustment can be carried out according tothe size of the circuit board, the defective products of the circuit board are reduced, and the production cost of a factory is reduced.

The invention relates to the technical field of welding tools, in particular to a tool for an automobile welding. The tool comprises a workbench and two clamping plates, two first sliding grooves are symmetrically formed in the two sides of the center of the upper end of the workbench, two second sliding grooves are symmetrically formed in the two sides of each of the two first sliding grooves, a containing plate is horizontally arranged between the two first sliding grooves, and a control panel is integrally arranged at the lower end of the center of the clamping plates. According to the device, through independent adjustment of a telescopic rod in a telescopic groove and adjustment of the rotating angle of a pressing plate driven by a rotating rod, to-be-welded parts of different shapes and sizes can be effectively clamped and fixed, the device is wide in application range, a shifting wheel rotates under the action of a gear plate to pressurize air in an air bag, then the air pressure in the air bag is automatically controlled through an adjusting valve, expansion and contraction of an air cushion are controlled through adjustment of a control valve when a weldment is clamped, and it is guaranteed that the shape of the weldment to be welded is not changed while clamping is conducted.

The invention discloses an outdoor retractable clothes airing rod device and relates to the field of family decoration. The device comprises two symmetrically-arranged brackets and a plurality of clothes airing rods, wherein each bracket comprises a base a, a base b, a main arm, a support arm, a front arm and a shaft; the main arm is of a shifting fork structure and is connected with the base a through a hinge pin, and a motor a is also arranged at the outer side of the main arm; the support arm is of a thin slab structure and is connected with the base b through a hinge pin, and one end of the support arm away from the base b is connected with the main arm to form a crank-slider mechanism; one end of the main arm away from the base a is connected with the front arm through the shaft, anda motor b is arranged at one end of the shaft; a telescopic mechanism is arranged in the front arm, and a driving gear of the telescopic mechanism is connected with the shaft; and the device also comprises a controller, and the controller is electrically connected with the motor a and the motor b respectively. The clothes airing rod device is arranged at outdoors, solves the problem of difficult clothes airing of urban residents and especially building occupants, and can automatically shield clothes to avoid the aired clothes from being wet by rain.

The invention discloses an automobile part assembling auxiliary device. The auxiliary device comprises a base, a supporting plate, a supporting column, a bearing plate and an electric telescopic rod;the supporting plate can slide parallel to the bottom plate, the lower end of the supporting column is rotationally mounted on the supporting plate, the lower end of the electric telescopic rod is hinged to the supporting column, and the upper end of the electric telescopic rod is hinged to the edge of the lower side surface of the bearing plate; and a left side plate and a right side plate are arranged on the upper side surface of the bearing plate, an extrusion column opposite to an extrusion screw is arranged on the right side plate, an extrusion crank is arranged on the outer end part of the extrusion screw, and a rubber anti-skid pad is arranged at the center of the upper side edge of the bearing plate. According to the automobile part assembling auxiliary device, the extrusion screw,the extrusion column, the extrusion plate and the extrusion crank form a transverse extrusion mechanism so that a supported automobile component can be effectively clamped and fixed, meanwhile, stable support can be achieved under the action of the rubber anti-skid pad, and the requirement of accurate positioning assembling can be met.

The invention relates to an electric vehicle underground garage center conveying table assembly which comprises two rotating guide rails arranged in parallel. A lifting synchronous belt is installed on the rotating guide rails in a cycle mode. A conveying table driven by the lifting synchronous belt is arranged between the rotating guide rails. The conveying table comprises a transverse frame, a guide rail sliding base and a two-layer vehicle bearing device. The two ends of the transverse frame are provided with a guide rail sliding base running on the rotating guide rails in a guided mode. The two-layer vehicle bearing device is horizontally and perpendicularly installed on the transverse frame. An upper vehicle carrying frame, an upper vehicle trailing frame, a lower vehicle carrying frame and a lower vehicle trailing frame are installed on a two-layer guide rail frame of the two-layer vehicle bearing device, the upper vehicle trailing frame and the lower vehicle trailing frame are hung together or disengaged through a hook mechanism, the upper vehicle carrying frame and the lower vehicle carrying frame are hung together or disengaged through a hook mechanism, and the guide rail sliding base is fixedly connected with the lifting synchronous belt. The electric vehicle underground garage center conveying table assembly of the structure is applicable to storing vehicles such as electric vehicles with large weight, and has the advantages of being large in bearing weight, stable in structure, safe and reliable.

The invention discloses urine stem cell preparation equipment, and particularly relates to the field of stem cell preparation, the urine stem cell preparation equipment comprises a preparation workbench, two partition plates are arranged on the upper surface of the preparation workbench, a preparation mechanism is arranged between the two partition plates, two placement mechanisms are arranged onthe opposite sides of the two partition plates, and the number of the placement mechanisms is two. The preparation mechanism is arranged; a culture dish is placed in the culture barrel; a good preparation environment is provided for stem cell preparation by utilizing the leakproofness of the cavity; meanwhile, the culture dish can be conveniently taken out by pulling the limiting strips; the probability of artificial contact with the culture dish is reduced, the probability of contamination of the culture dish is further reduced, meanwhile, an inclination mechanism is arranged, a pressing threaded rod is rotated, a culture barrel is driven to incline according to the lever principle, a worker can conveniently transfer liquid to a culture medium, culture operation on urine stem cells is facilitated, and actual use is facilitated.

The invention relates to the technical field of fixing devices, in particular to a rechargeable electronic equipment fixing device convenient to use. The rechargeable electronic equipment fixing device convenient to use comprises a box body and a moving plate. The moving plate is connected with the inner side of the box body in a sliding mode, a sliding groove is formed in the center of the innerside of the moving plate, and a groove is formed in the inner side of the moving plate. Fixing rings are fixedly connected with the two sides of the inner end face of the box body, and touch switchesare fixedly connected with the top ends of the fixing rings. Clamping plates are connected with the inner side of the moving plate in a sliding mode, cam sliding blocks are fixedly connected with thebottom ends of the clamping plates, and multi-slot cams are connected with the bottom ends of the cam sliding blocks in a sliding mode. A mechanism which comprises the multi-slot cams and the like iscompact in structure, high in reliability, good in flexibility and convenient to use, a used traction wheel and a used driven wheel are simple in structure and convenient to repair and manufacture, the cost expenditure can be effectively reduced, and the rechargeable electronic equipment fixing device has the huge economic benefit and the broad market prospect, and is worth using and popularizing.

The invention discloses a 5G mobile phone support frame. The 5G mobile phone support frame structurally comprises a flat plate, the upper side of the flat plate is provided with a supporting installation device used for installing a 5G communication mobile phone. Balance supporting devices which are located on the upper side and the lower side of the flat plate and used for adjusting the supporting and installing device and supporting equipment are arranged on the lower side of the supporting installation device. The 5G mobile phone support frame adopts the supporting installation device and the balance supporting devices, so that the 5G mobile phone support frame can efficiently clamp and fix the 5G communication mobile phone to facilitate the use of personnel, and the 5G mobile phone support frame adopts a series of structures convenient to adjust and mount, so that the 5G mobile phone support frame has an efficient mounting and adjusting function, and the practicability of the 5G mobile phone support frame is improved.

The invention relates to the technical field of heat preservation pipe manufacturing, in particular to a polyurethane sprayed polyethylene wound heat preservation pipe manufacturing equipment and process. The polyurethane sprayed polyethylene wound heat preservation pipe manufacturing equipment includes supporting columns, supporting frames, intermittent rotation devices, clamping drive devices, limit rotation devices, a polyurethane spraying structure and a polyethylene spraying structure, the tops of the inner side surfaces of the supporting columns are rotatably connected with the supporting frames, the clamping drive devices are fixedly arranged on the outer sides of the other ends of the supporting frames, the limited rotation devices are fixedly arranged on two sides of the clampingdrive devices, the intermittent rotation devices are arranged on the other sides of the supporting columns on one side, a fixed frame is arranged on the rear sides of the supporting columns, and the polyurethane spraying structure and the polyethylene spraying structure are slidably arranged at the top end of the fixed frame. According to the polyurethane sprayed polyethylene wound heat preservation pipe manufacturing equipment and process, a heat preservation pipe to be processed can be better and effectively clamped and fixed by arranging the clamping drive devices and the limit rotation devices and can be better driven to rotate, so that a coating can be better sprayed on the surface of the heat preservation pipe.

The invention provides a clinical interventional therapy catheter fixing device for medical oncology, and relates to the technical field of medical auxiliary instruments. The clinical interventional therapy catheter fixing device for the medical oncology department comprises a fixing plate, wherein a fixing base is fixedly arranged in the middle of the upper end of the fixing plate, a limiting cylinder is fixedly arranged in the fixing base, four extrusion rings are fixedly connected to the upper end of the limiting cylinder, and extrusion soft cushions are fixedly arranged in the four extrusion rings; a bottom guide ring is fixedly connected to the lower end of the limiting cylinder, a protective soft cushion is fixedly arranged at the lower end of the fixing plate, and connecting rings are fixedly arranged on the two sides of the fixing plate. According to the clinical interventional therapy catheter fixing device for the medical oncology, a catheter can be effectively clamped and fixed, so that the device can be suitable for fixing catheters with different pipe diameters and is convenient to use. The situation that the position, where the catheter is implanted, of a patient is damaged due to shaking of an external catheter can be prevented, and the device can be suitable for patients with different body types and is excellent in adaptability.

The invention discloses an electric power storage device for a new energy vehicle. The device comprises a shell, an end cover is hinged to one side of the top of the shell, and a wiring board is embedded in the middle of the top of the shell; a damping spring is fixedly installed at the bottom of the end cover, a press plate is fixedly connected to the bottom of the damping spring, and the shell comprises an outer shell body and an inner shell body; a heat exchange coil pipe is installed between the outer shell body and the inner shell body, a water inlet pipe and a water outlet pipe which arefixedly connected with the two ends of the heat exchange coil pipe are welded to one side of the outer shell body separately, heat dissipation fins are embedded in the front and rear ends of the outer shell body, and a heat conduction sheet is embedded in the surface of the inner shell body; an air pressure damper is fixedly installed at the bottom in the inner shell body, and a supporting plateis fixedly connected to the top of the air pressure damper. The device is simple and reasonable in structural design, convenient to operate, disassemble and assemble, good in water prevention, heat dissipation and damping effect, safe, stable, wide in application range and beneficial to popularization.

The invention discloses a laser welding workstation for a turbine hardware. The laser welding workstation for the turbine hardware comprises a table body, a plastic uptake tray, a mounting frame, a feeding structure, a grabbing structure, a clamping structure, a welding structure and a dust removal structure, supporting legs are fixedly connected to the top of the table body, a fixing disc is fixedly connected to the ends, away from the table body, of the supporting legs, a first motor is fixedly connected to the bottom of the fixing disc, a rotating table is fixedly connected to one end of an output shaft of the first motor, placing grooves distributed at equal intervals are formed in the bottom of the plastic uptake tray, and hardware bodies are placed in the placing grooves. The laser welding workstation has the beneficial effects that the hardware bodies can be subjected to continuous full-automatic welding work through the workstation, so that the welded hardware bodies are uniform in weld joints and free of grooves, cracks and burrs, the welding efficiency of the hardware bodies is greatly improved, and the welding quality of the hardware bodies is also improved.

The invention discloses a woodworking planer. Two sets of support columns are respectively welded on both sides of the top of the support table, a work table is fixedly connected to the top of the support table, and a first knife slot is opened in the middle of the work table. Rollers are movably connected to the front and back of the lower part of both sides of the box body, a clamping device is fixedly connected to the top of the first slider, and a positioning device is fixedly connected to the front and back of both sides of the bottom of the box body. A plurality of through holes are evenly opened in the middle of the top of the support table, and an impurity removal device is fixedly connected to the middle of the top of the inner cavity of the box. In the present invention, the slot, the insertion rod, the first clamping block, the second clamping block, the pressure plate, the first spring, the roller, the threaded sleeve, the threaded rod, the supporting leg, the rubber gasket, the through hole, the miscellaneous groove, the miscellaneous guide Slots, sieves, centrifugal fans and collection boxes make this wood planer practical.

The invention relates to the technical field of computers, and discloses a quick-release computer hard disk shock absorption mounting structure. The quick-release computer hard disk shock absorption mounting structure includes a fixed bottom plate, limiting grooves are formed in two sides of the upper end of the fixed bottom plate; limiting blocks are slidably arranged in the limiting grooves; theupper ends of the two limiting blocks are respectively hinged with a first connecting rod and a second connecting rod which are crossed; the upper ends of the first connecting rod and the second connecting rod are hinged to two sides of the hard disk base; a plurality of damping springs are installed at the upper end in the hard disk base; a damping plate is mounted at the upper ends of the damping springs; a hard disk body is placed at the upper end of the damping plate. Fixing blocks are installed at the upper ends of the two sides of the hard disk base. Fixing shafts are arranged in the middles of the fixing blocks. Sleeves are rotatably connected to the outer sides of the fixing shafts. Rotating columns are installed at the upper ends of the sleeves. Clamping bases are installed at the upper ends of the rotating columns. The installation process is convenient and fast, the hard disk cannot be damaged, meanwhile, through the effects of the first connecting rod, the second connecting rod and the damping springs, the hard disk can bear a certain degree of impact after being installed, and the reliability of the whole quick-release computer hard disk shock absorption mounting structure is further improved.

The invention provides an automatic shoe sole grinding machine. The automatic shoe sole grinding machine comprises a base, a workbench, a case, a motor rack, a plurality of clamps and a processor, wherein the workbench can be movably arranged on the base; the case is vertically arranged at one end of the workbench; the motor rack is movably arranged at one side of the case; the motor rack is positioned above the workbench; a drive motor is mounted on the motor rack; a grinding disc is mounted on the output shaft of the drive motor; the clamps are mounted on the workbench and are used for clamping a to-be-processed shoe sole; the processor is mounted in the case and is used for controlling the workbench to move; and the motor rack moves to drive the motor to rotate. The automatic shoe solegrinding machine provided by the invention can perform sufficient grinding on the shoe sole, and is high in grinding efficiency.

The invention relates to the technical field of display, and discloses a commercial stepless adjustment type annular display device which comprises a base, a sleeve is fixedly connected to the upper surface of the base, a connecting rod is movably connected to the inner bottom wall of the sleeve through a shaft seat, and a first gear is fixedly connected to the middle of the connecting rod. According to the commercial stepless adjustment type annular display device, the base, a second gear, a transmission rod and other structures are arranged; a rotating wheel is rotated to drive the second gear to rotate through the transmission rod, the second gear drives the connecting rod to rotate, and the connecting rod drives a threaded rod to rotate, so an upper connecting ring can move, and posters with different heights can be conveniently displayed; through the arrangement of structures such as adjusting rings, supporting blocks, arc-shaped clamping blocks and reset springs, the telescopic plates are rotated to enable the adjacent telescopic plates to be opened and closed at a proper angle, the positions of the adjusted telescopic plates are fixed through clamping devices, and thus posters with different widths can be displayed, and multiple posters can be displayed at the same time.

The invention relates to a wire cable clamping and fixing device used for an X1K type container refrigerator car. The wire cable clamping and fixing device comprises a lower retaining ring, an upper retaining ring and a locking device, wherein the lower retaining ring is used for fixedly arranging the wire cable clamping and fixing device on a door shield of the X1K container car; the first end of the lower retaining ring is rotatably connected to the upper retaining ring; the locking device is arranged on the second end of the lower retaining ring; the upper retaining ring rotates relative to the lower retaining ring, thereby opening or closing the wire cable clamping and fixing device; a lower wire cable groove and an upper wire cable groove which are matched in shape are respectively formed in the middle parts of the lower retaining ring and the upper retaining ring and are used for clamping and fixing wire cables; and the locking device can lock the lower retaining ring and the upper retaining ring. The wire cable clamping and fixing device has the beneficial effects that the wire cables are effectively clamped and fixed by using the upper retaining ring and the lower retaining ring which can rotate relatively and are matched mutually, are ordered and regular, and are convenient to disassemble and manage, thereby avoiding the conditions of wire cable falling or damage and the like; and the wire cable clamping and fixing device can be widely applied to the clamping and fixation of lots of detachable wire cables needed in the container refrigerator car.

The invention relates to a lathe chuck fixture for stainless steel forged rail machining. The lathe chuck fixture comprises an upper mold and a lower mold which are each of a semi-cylindrical structure, cavities matched with the appearance of a forged rail workpiece are formed in the upper mold and the lower mold, the forged rail workpiece is clamped between the upper mold and the lower mold, anda cylindrical structure is formed; symmetrical upper mold bosses are arranged on the two edges, in the axial direction, of the upper mold, each upper mold boss is provided with positioning pins and pressing plate blocks, and an upper mold countersunk groove, a first square platform, an upper mold cavity and a second square platform are sequentially arranged between the two upper mold bosses; and symmetrical lower mold bosses are arranged on the two edges, in the axial direction, of the lower mold, each lower mold boss is provided with positioning pin holes, and a lower mold countersunk groove,a first lower mold groove, a lower mold cavity and a second lower mold groove are sequentially formed between the two lower mold bosses. According to the lathe chuck fixture, machining of forged railtwo ends including the oil inlet end and the pressure detecting end is completed, the upper mold and the lower mold are closed and then put into two jaw chucks to be clamped for machining, an irregular forged rail workpiece can be effectively clamped and fixed, and the machining precision is guaranteed.