34results about How to "Easy width adjustment" patented technology

The invention relates to a printed circuit board (PCB) locating device which comprises a motor. The motor is fixedly installed on a speed reducer, the speed reducer is fixedly installed on a base seat, a big chain wheel is installed on an output shaft of the speed reducer, a small chain wheel is installed on a transmission shaft, the transmission shaft penetrates through conveying chain wheels and is connected with a guide rail, the conveying chain wheels are arranged at two ends of conveying chains, the conveying chain wheels are installed in grooves on the side faces of the guide rail, PCB locating rods and PCB supporting rods are fixedly welded on the side faces of the conveying chains, each set comprises two PCB locating rods, and the PCB supporting rods are welded between every two sets of the PCB locating rods, threads are formed in vertical portions of the PCB locating rods, two sets of holes are formed in two sides of a to-be-welded PCB, the two sets of holes are installed on the PCB locating rods and are fastened by clamp nuts, guide rail sliding blocks are fixed on a support and are connected with the guide rail, a hand wheel is installed on a guide rail lead screw, and the guide rail lead screw penetrates through fixing parts which are welded below the guide rail. The PCB locating device has the advantages of being simple in structure and easy to achieve, and adjusting of width of the PCB locating device is convenient.

An orthopedic shoulder weight halter and corresponding weight(s) are described which allow one or more weights to be attached to shoulder straps by fastening material strips. Fourteen points of adjustment in the halter allow for a universe of different torso sizes. The harness possesses two shoulder straps, two front support straps, a waist strap, a chest strap, an upper back/chest strap, four double-D rings and two quick release buckles. The harness and the weight(s) can be easily put on or taken off of the wearer.

The invention discloses an intelligent tool with multi-point limiting and clamping functions for carbon sliding plate machining. The intelligent tool comprises a bottom plate. Bases are arranged in the four corners of the bottom face of the bottom plate. A telescopic cylinder of each first telescopic cylinder is movably connected with a roller through a sliding assembly, second connecting blocks are arranged on the end portions of a telescopic cylinder of a second telescopic cylinder, and a second sliding rod is sleeved with a connecting rod mechanism. Rectangular-block-shaped fixed seats arearranged on the two sides of the top face of the bottom plate, a sliding connecting block is arranged on the end portion of a telescopic rod of each sliding telescopic cylinder, the outer side face ofeach sliding connecting block is fixedly connected with a sliding plate on the same side, and a clamping mechanism is arranged on the top face of each sliding plate. The invention further discloses ause method of the intelligent tool with the multi-point limiting and clamping functions for carbon sliding plate machining. As a complete set of tool structure is designed, the tool can meet the requirements of machining carbon sliding plates with different sizes, and is convenient to disassemble and assemble and capable of adapting to structures with different heights, meanwhile, the convenienceof movement of the tool is improved, and the stability and the working efficiency in the using process are improved.

The invention relates to a fabricated building wall body. The fabricated building wall body comprises two wallboards, a connecting frame, two side supporting plates, side supporting springs, attachedplates and a limiting mechanism, clamping grooves are formed in the front inner side surfaces and the rear inner side surfaces of the wallboards, and the connecting frame is located between the two wallboards. The two side supporting plates are distributed on the front side surface and the rear side surface of the connecting frame, the side supporting plates are symmetrically installed on the leftside surface and the right side surface of the connecting frame, the outer side surfaces of the side supporting plates and the outer side surfaces of the wallboards are located in a same plane, the side supporting plates are located in the clamping grooves of the wallboards, square grooves are formed in the side surfaces of the side supporting plates, the attached plates are installed in the square grooves of each side supporting plate through the side supporting springs, and four buffering mechanisms are symmetrically installed on the connecting frame. According to the fabricated building wall body, the problem that the splicing size of two current wall bodies cannot be adjusted during splicing is solved; and the wall bodies are positioned through labor using boards during wall body splicing, the positioning mode is poor in precision, the wall body positioning is inaccurate, and the service life of the wall body can be further affected.

“A micro beam collimator for compressing beams is described, where the collimator has channel means for providing a channel having a cross section and guiding the beams from an entrance end to an exit end of the channel. The invention provides a micro beam collimator for compressing beams which allows easy adjustment of the width of the cross section of the beams while making it possible at the same time to adjust the length of the cross section of the beams. The invention forms the channel means by at least three rod members each of which having at least one bordering surface for bordering the cross section, wherein the rod members are moveable against each other along the bordering surfaces so that the geometry of the cross action is variable.”

Provided is a printed circuit board (PCB) transmission system of a selective crest welder capable of steadily transmitting. The PCB transmission system comprises a pair of supports with equal height, and a pair of slide rails which are placed in a parallel mode and fixed on the supports. Both ends of the pair of transmission guide rails are respectively arranged on a pair of slide rails through a sliding groove. One ends of the pair of transmission guide rails are fixed on the slide rails; the other ends of the transmission guide rails are capable of sliding on the slide rails. A transmission bracket is arranged on the transmission rails, transmission screw rods are respectively arranged at the outer ends of the pair of the transmission rails, and both ends of the pair of the transmission screw rods are fixedly arranged on a bearing of the transmission rails. Two guide rail screw rod fixing parts are arranged on the lower portion of a fixing end next to the pair of transmission rails. A transmission screw nut is sleeved on the transmission screw rods and is fixedly assembled with the transmission bracket. A chain wheel is arranged at a shaft end of the pair of the transmission screw rods next to a slidable end of the pair of transmission rails. The guide rail screw rods penetrate through the two guide rail screw rod fixing parts. The hand wheel is arranged at one end of each guide rail screw rod. The transmission system has the advantages of being simple in structure and steady in transmission, and the width is convenient to adjust.

The invention relates to the technical field of plastic thin film production, and particularly discloses an inclination frame adjusting mechanism. The mechanism comprises a rack and a herringbone plate, the herringbone plate comprises two opposite inclination frames, limiting rollers, a supporting frame, a width adjusting assembly and a driving assembly located on the rack are further included, the limiting rollers are located between the two inclination frames, sliding rods are arranged on the two inclination frames, the two ends of the limiting rollers are in sliding connection to the sliding rods on the two inclination frames, the two inclination frames are connected to the supporting frame, the driving assembly is used for driving the supporting frame to rotate, the width adjusting assembly is located between the two limiting rollers, the width adjusting assembly comprises a guide rod, a sliding base and two push rods, the guide rod is rotatably connected to one sliding rod, the sliding base is in sliding connection to the guide rod, one ends of the two push rods are rotatably connected to the sliding base, and the other ends of the two push rods are rotatably connected to thetwo limiting rollers. Through the scheme, the problem that in the prior art, bubbles are easily extruded to form by the herringbone plate, and the bubble thickness is not uniform is solved.

The invention discloses a low-cost and high-quality warp-knitted unidirectional fabric and a production process thereof. A multiaxial warp knitting machine is adopted. The production process comprises the following steps that 1, weft yarns are laid, wherein the weft yarns are laid in a weft yarn laying zone of the multiaxial warp knitting machine, and it is ensured that the separation distances of the weft yarns are equal; 2, weft insertion and binding are performed, wherein the laid weft yarns are conveyed to a warp knitting machine head of the multiaxial warp knitting machine, are compounded with 0-degree warp yarns and then are bound by binding yarns, it is limited that one weft yarn is inserted every one rotating circle of the machine head and is bound. By adopting the process, the weft yarns equal in separating distance can be produced, the unidirectional fabric with the independently bound weft yarns has a flat cloth cover and is flat and straight, the weft yarns can be rough yarns of 200 tex and 300 tex, the raw materials are relatively lower in price, and the fabric cost is lower. In addition, fabric width adjustment is more convenient, waste is relatively little, the cost can be also controlled through device change, and the process is smooth and stable in operation.

The invention discloses a floating root cutter assembly used on a mint harvester, and relates to the technical field of cutters. The floating root cutter assembly comprises a first connecting rod, a first connecting block, a first telescopic rod, a second connecting block, a second telescopic rod, a contraction mechanism, a cutting device and a distance measuring device; one end of the first telescopic rod is fixedly connected with the first connecting block; the other end of the first telescopic rod is fixedly connected with the first connecting block; and the cutting device comprises a horizontal plate and a cutting blade. By arranging the first connecting rod, the first connecting block and the first telescopic rod, the height of the cutting device of the harvester is more convenient toadjust, and mint roots are prevented from being damaged during cutting; and the second connecting block, the second telescopic rod, the contraction mechanism and the cutting device are arranged, so that the width of the cutting device is adjusted more flexibly, the cutting device can adapt to harvesting operation in different planting areas, and the adaptability of the harvester is improved.

The invention discloses a concrete curing device of a double-layer water retention system and a construction method.The concrete curing device comprises a first supporting frame and a second supporting frame, the second supporting frame is installed on the first supporting frame in an inserted mode, width adjusting assemblies are installed at the bottoms of the first supporting frame and the second supporting frame, and installation grooves are formed in the first supporting frame and the second supporting frame; a first supporting shaft rod and a second supporting shaft rod are arranged on the first supporting frame and the second supporting frame, the first supporting shaft rod and the second supporting shaft rod are installed in an inserted mode, bearings are installed at the ends of the first supporting shaft rod and the second supporting shaft rod, and the bearings are installed in the installation grooves and fixed through fixing plates. The first supporting shaft rod and the second supporting shaft rod are arranged on the first supporting frame and the second supporting frame, the film barrel is installed on the first supporting shaft rod and the second supporting shaft rod, a film is conveniently laid on the concrete ground, operation is convenient and easy, the traditional mode that a user spreads the film with hands is replaced, and the laying efficiency is improved.

The invention discloses packing machine membrane arrangement equipment and belongs to the technical field of packing equipment. The packing machine membrane arrangement equipment comprises a support and a membrane passing roller. The packing machine membrane arrangement equipment is characterized in that the support comprises a first seat plate, a second seat plate, a first supporting plate, a second supporting plate and a supporting point shaft connected between the first supporting plate and the second supporting plate; the first supporting plate is fixed to the first seat plate, and the second supporting plate is fixed to the second seat plate; one end of the membrane passing roller is connected with the first seat plate, and the other end of the membrane passing roller is connected with the second seat plate; a first carrier roller and a second carrier roller are arranged between the first seat plate and the second seat plate side by side; and the supporting point shaft is providedwith a swing arm, the swing arm is fixedly provided with a servo motor, and the servo motor is connected with an active glue wrapping wheel. By means of the packing machine membrane arrangement equipment, a winding drum package membrane is quite convenient to replace, time and labor are saved, membrane arrangement stability is good, and membrane arrangement efficiency and quality can be effectively improved.

The invention provides a vehicle shelf. The vehicle shelf comprises beams, fixing rods, moving frames, supporting frames, fixing seats, rope fixing buckles and connecting seats, wherein the beams andthe fixing rods are two, the two beams are oppositely placed, and meanwhile, the two fixing rods which are located at the bottom of the two beams and the beams are arranged in a cross mode. The connecting seats are used for connecting the beams and the fixing rods, through the cooperation of bolts, bolt connecting parts and clamping plates, the connecting seats can move along sliding grooves of the beams and upper sliding grooves I of the fixing rods, the connecting seats can further be fixed at the same time; the two supporting frames are further fixed to the bottom of each of the fixing rods, the tops of the supporting frames can move along lower sliding grooves I of the fixing rods by the cooperation of the bolts, the bolt connecting parts and the clamping plates and can further be fixed at the same time; the bottoms of the supporting frames are supplied for fixing the fixing seats; and the moving frames are fixed to the two beams, the moving frames can move back and forth along thebeams and can further be fixed at the same time. Of course, the rope fixing buckles can further move along the sliding grooves at the bottoms of the beams and can be fixed.

The invention belongs to the technical field of rail engineering truck body steel structure unwheeling. The width-adjustable rail engineering truck body unwheeling platform comprises two unwheeling piers, a cross beam, a first hydraulic jack, a second hydraulic jack and a transverse movement adjusting unit, wherein the two unwheeling piers are correspondingly arranged left and right. The two ends of the cross beam are fixedly arranged on the two unwheeling piers respectively. The first hydraulic jack is arranged at the first end part of the cross beam. The second hydraulic jack is arranged at the second end part of the cross beam. The transverse movement adjusting unit is arranged between at least one of the first hydraulic jack and the second hydraulic jack and the cross beam, and the transverse movement adjusting unit adjusts the position of the first hydraulic jack or/and the second hydraulic jack on the cross beam. The overall structural design is reasonable, the structural stability is high, the width adjustment is made more convenient, the practicability is high in the operations of rail engineering trucks and the adjustment is made convenient.

The invention relates to the field of agricultural machinery, and provides a hydraulic retractable orchard fertilizer applicator, the left end and the right end of a front suspension main body rack are respectively provided with a fertilizer application assembly, the two fertilizer application assemblies can fertilize multiple rows of fruit trees at a time, and the width of the two fertilizer application assemblies is respectively adjusted through a width adjusting hydraulic cylinder; the front suspension main body rack is provided with a hydraulic fixing seat, one ends of two width adjusting hydraulic cylinders are hinged to the hydraulic fixing seat, and the other ends of the two width adjusting hydraulic cylinders are assembled on the two fertilizing assemblies respectively; the fruit tree fertilizing device is simple in structure and convenient to operate, effectively integrates traditional fertilizing procedures, has a width adjusting function, is simple in structure, can be used for fertilizing two rows of fruit trees at a time, is suitable for orchards with various line spacings, and greatly improves the fertilizing efficiency.