30results about How to "Raise or lower height" patented technology

The invention discloses a frame specification conversion structure. The frame specification conversion structure comprises a five-way connecting pipe which is used for being connected with a lower branch pipe, a middle pipe and a lower pipe, wherein a groove-shaped pipe opening is formed in the five-way connecting pipe in the axial direction of the middle pipe. The frame specification conversion structure further comprises an axle hole pipe which penetrates through the groove-shaped pipe opening and is used for fixing a crankset, wherein a detachable adjusting block is further arranged on the side portion of the groove-shaped pipe opening, the cross section of the adjusting block is a crescent face, and when the adjusting block is inserted into one side of the groove-shaped pipe opening, a round opening which facilitates fixation of the axle hole pipe is formed by the crescent face and the groove-shaped pipe opening. The adjusting block comprises two side portion clamping blocks, a middle clamping block arranged between the two side portion clamping blocks, and a bolt, wherein the two side portion clamping blocks are provided with opposite slopes respectively, the middle clamping block comprises conical faces corresponding to the slopes of the two side portion clamping blocks, and the bolt movably penetrates through one of the side portion clamping blocks and the middle clamping block and then is fixed to the other side portion clamping block in a screwed mode. Due to the fact that the frame specification conversion structure can adjust the height of the axle hole pipe which is used for fixing the crankset, the requirement that the same frame is used in cooperation with wheels with different sizes can be met.

The invention discloses a quartz crystal automatic conveying and sorting device, which comprises a bottom plate, a mounting plate 1 is fixedly connected to the left side of the top of the bottom plate, a motor 1 is fixedly installed on the front surface of the mounting plate 1, and the output end of the motor 1 Roller 1 is fixedly connected, and mounting plate 2 is fixedly connected to the right side of the top of the bottom plate. The front surface of mounting plate 2 is movably connected to rotating column 1 through bearings, and the end of rotating column 1 away from mounting plate 2 is fixed. The roller 2 is connected, and the roller 1 and the roller 2 are connected through a transmission belt, and a sorting box is fixedly connected to the top of the conveyor belt. The present invention can raise or lower the height of the adjusting rod through the cooperation of the adjusting rod, the lifting plate, the connecting rod, the second motor, the first pulley, the second rotating column, the second pulley, the belt, the rotating rod and the connecting rod, thereby adjusting the height of the bottom plate and the conveyor belt. High height, convenient for docking different equipment, easy to transport quartz crystal.

The invention discloses a ladder structure for installation of building circuits, which comprises a left ladder, a right ladder and a telescopic ladder. A guide sleeve is arranged between the left ladder and the right ladder, and a base is arranged at the bottom of the guide sleeve, and the left and right sides of the base are The two ends are respectively fixed on the bottom of the left ladder and the right ladder. At the same time, two sets of telescopic cylinders are installed on the inner bottom of the guide sleeve, and the upper end of the telescopic cylinder is supported on the bottom of the telescopic ladder. The telescopic movement of the lower part of the telescopic ladder is set on the guide sleeve Inside. The building circuit is installed with a ladder structure, the structure is reasonable, stable and reliable, the left ladder and the right ladder are arranged symmetrically about the guide sleeve, which is convenient for two people to use at the same time, which helps to improve the overall work efficiency, and is more convenient and practical. At the same time, the telescopic ladder is convenient. Lifting activities, in order to increase or decrease the height of the telescopic ladder, more practical and more flexible and convenient.

The invention discloses pit slot cleaning equipment and an optimal parameter determination method. The pit slot cleaning equipment comprises a support pipe, a gas pipe is sleeved by the support pipe, one end of the gas pipe is connected to a high pressure air feeder, the other end of the gas pipe is connected to an air motor driven by high pressure air, the air motor is connected to the support pipe, the lower part of the air motor is provided with a cleaning brush head for cleaning a pit slot, and the middle of the support pipe is connected to a wheel shaft assembly for moving the pit slot cleaning equipment. The pit slot cleaning equipment can remove dust and broken stone on a pit slot repair interface, remove loose parts of the repair interface and remove water stains on the repair interface thereby providing a clean and dry pit slot repair interface with good contact conditions.

The invention discloses a garden lawn trimming anti-pedaling device, and relates to the field of a garden device. The garden lawn trimming anti-pedaling device comprises an ascending and descending mechanism, an anti-pedaling mechanism and a trimming mechanism, wherein the ascending and descending mechanism comprises support bases; the support bases are laid on the ground and are in parallel arrangement; pressure maintaining water pipes in uniform distribution are arranged in the height direction in a groove; the anti-pedaling mechanism comprises a grid plate; the lower end of the grid plate is provided with mutually parallel support plates in uniform distribution; the trimming mechanism comprises grass cutting cutter blades and a moving device; the grid plate is divided into an upper grid plate and a lower grid plate which are glidingly connected; the grass cutting cutter blades in uniform distribution are arranged between the upper grid plate and the lower grid plate; the moving device comprises a motor arranged at the lower grid plate; and the output end of the motor is provided with an eccentric rotating wheel. The garden lawn trimming anti-pedaling device has the beneficial effects that the lawn can provide a leisure function; a good protection effect is achieved on the lawn; meanwhile, the lawn is automatically trimmed; the manual labor is reduced; and the landscape effect is enhanced.

The invention discloses a suspension lifting adjusting device. The suspension lifting adjusting device comprises an adjusting component. The adjusting component is connected with a spring base of the suspension so that the spring base is driven to move up and down. Through adjusting the position when the spring base moves and the position of a car body, the suspension lifting adjusting device in the embodiment of the invention does not change a stress point of an absorber. In addition, the suspension lifting adjusting device is simple in structure, low in cost and wide in application.

The invention relates to the technical field of furniture, and discloses a method for applying a foldable wall desk. The method includes steps of forming a groove in a wall by means of digging, inserting a fixing bolt, mounting the foldable wall desk on the wall and reserving an extending end on the fixing bolt; connecting a fixing plate with a groove onto the fixing bolt in an anchored manner and inserting the extending end of the fixing bolt into the groove of the fixing plate; propping up a desk plate hinged onto the fixing plate and laying down a support rod and legs; supporting adjusting devices on a floor and inserting the support rod into spaces among adjusting teeth in an inclination manner; adjusting the adjusting devices to lift or lower the legs and enabling the desk plate to be parallel to the ground. The extending end of the fixing bolt extends out of the groove of the wall. The size of the groove of the fixing plate is identical to that of the groove of the wall. The support rod and the legs are hinged onto the bottom surface of the desk plate. The adjusting devices are connected to the lower ends of the legs. According to the scheme, the method has the advantages that the inclination of the desk plate can be adjusted, accordingly, the desk plate can be prevented from inclining due to uneven grounds or deformation of components of the wall desk after the components are used for a long time, and the mounting flexibility and the durability of the desk can be greatly improved.

The invention discloses a partially-adjustable flexibility compensation bench for bending machines and belongs to the technical field of bending machines. The partially-adjustable flexibility compensation bench comprises a cover plate, a base, a sliding plate mechanism and an adjusting mechanism; the base is longitudinally provided with a groove in which the sliding plate mechanism is disposed; the sliding plate mechanism comprises an upper sliding plate and a lower sliding plate; the upper sliding plate is disposed above the lower sliding plate; the lower surface of the upper sliding plate and the upper surface of the lower sliding plate are both longitudinally provided with a plurality of pairs of slants equal in upper and lower slope; the slope of the slants gradually decreases from the longitudinal middle to the two ends; the upper sliding plate and the lower sliding plate are transversely provided with a pair of slants equal in slope. The partially-adjustable flexibility compensation bench has the advantages that flexibility compensation for workpieces is made matching with actual flexibility and deformation of the workpiece, full-length uniformity of bending angle of the workpiece is guaranteed, and linearity of the workpiece is guaranteed.