38results about How to "Adjust the length of use" patented technology

The invention discloses a threaded cutter used for oil exploitation and convenient to use adjust. The threaded cutter comprises a threaded cutter head, a bearing and an extending rod. A connecting block is welded on and fixed to the top of the threaded cutter head, the connecting block and a fixed rod are fixed through a bolt, the bearing and the fixed rod are connected through penetration, each lateral side block is connected with one end of a corresponding supporting rod through a connecting shaft, a threaded tightening bush is installed on the connecting shaft, a built-in rod is arranged inside the other end of each supporting rod, one end of the extending rod is arranged inside the fixed rod, an installing block is fixed to the other end of the extending rod, a connecting groove is formed in the center of the upper surface of the connecting block, and installing holes are reserved symmetrically in the two sides of the exterior of the connecting block. By arranging the fixed rod andthe extending rod of telescopic structures, the using length of the threaded cutter can be adjusted; with the supporting rods and the built-in rods of telescopic structures, triangular supporting blocks realize supporting at different positions.

The invention relates to the technical field of bicycles, in particular to a safety protection frame for a bicycle. The safety protection frame comprises first main bodies. Bottom cushions are fixedlyinstalled on the outer surfaces of the bottom ends of the first main bodies; lifting plates are movably installed on the outer surfaces of the first main bodies; clamping sleeves are fixedly installed on the outer surfaces of the upper ends of the first main bodies; protection plates are fixedly installed on the outer surfaces of the upper ends of the lifting plates; supports are fixedly installed on the outer surfaces of the upper ends of the clamping sleeves; foam cushions are fixedly installed on the outer surfaces of the upper ends of the supports; and baffles are arranged on the outer surfaces of the front ends of the first main bodies. The novel safety protection frame for the bicycle is provided with the foaming cushions, slope frames and grooves; the situation that the bicycle isbumped and consequently damaged when placed on the protection frame can be prevented; a user can conveniently push the bicycle into the protection frame; and the multiple protection frames can be better spliced and detached, and better using prospects are achieved.

The invention discloses a handrail for a tractor with a position-limiting function, comprising a first socket, a second socket, a first support rod and a second support rod, and the first support rod is fixedly sleeved on the first socket The outer surface of one side of the first support rod is fixedly sleeved on the outer surface of the other side of the first socket, the second socket is arranged at one end of the first socket, and one end of the first socket The outer surface is fixedly equipped with a first card holder, and the outer surface of one end of the second socket is fixedly installed with a second card holder, and the first socket and the second socket are connected by the first card holder and the second card holder. The seats are docked and fixed, two groups of rotating grooves are provided on the inner side of the first card seat, and two groups of rotating snap rings are fixedly installed on the outer surface of the side of the second card seat; so that the tractor handrail has a limit locking structure, and the lifting Its own functionality also makes it have a rotary angle adjustment structure, which improves the flexibility of tractor handrail operation.

The invention discloses a precise and intelligent needle-type water light meter for deep hydration and anti-aging, which includes a water light meter body. And the storage shelf is provided with a fixed shell between the inner and outer walls, the upper surface of the fixed shell is rotatably connected with a transparent cover, the right end of the transparent cover is fixedly connected with a suction head, and one end of the suction head is provided with a filter tube, which is driven by the rotation of the rotating motor. The fixed wheel rotates, so that the driving wheel drives the adjustment rod to rotate, so that the moving tube moves in the connecting tube and pushes the push rod, so that the installation plate and the needle slide on the support rod, so as to realize the function of adjusting the use length of the needle, which can be used on different parts of the skin. Through the fixing of the first fixed cover and the second fixed cover, and then turning the first threaded rod and the second threaded rod, the first push plate and the second push plate can be driven to fix the needle tube and the adjustment mechanism, which can be easily disassembled by the user Cannula and needles.

The invention provides a preparation method of an electrochemical micro-detection system based on a disposable pipette tip and a lead core electrode array and relates to the preparation method of the electrochemical micro-detection system, aiming at solving the technical problems that a conventional electrochemical detection system is high in preparation cost, and complicated and strict in process, only can be circularly utilized, easily causes secondary pollution and needs more samples to be detected, and an existing electrochemical micro-detection system commonly has a plane structure so that a real reference electrode is difficult to arrange and the accuracy and sensitivity are relatively poor. The preparation method comprises the following steps of: 1, preparing a lead core array; 2, decorating the lead core electrode array; 3, assembling a three-electrode system; 4, preparing an electrolytic cell; and 5, assembling the electrochemical micro-detection system. The invention designs the simple and novel three-dimensional electrochemical micro-detection system based on the disposable pipette tip and a lead core, and the system is uniquely combined with the structure advantages of the real reference electrode; the sensitive detection of micro samples is realized and the accuracy and sensitivity of the electrochemical detection are effectively improved.

Disclosed is a length adjustable working table. The length adjustable working table comprises a body, an extending part, a guide unit and a pulling device, wherein the guide unit is connected with the extending part and enables the extending part to slide relative to the body, the pulling device comprises a controlling part, a driving unit and a positioning part, the controlling part is operated to be in linkage with the driving unit and the positioning part so as to enable the extending part to shift relative to the body, and the using length of the working table can be adjusted.

The invention discloses a respiratory intelligent respirator for pediatric internal medicine, which belongs to the field of medical equipment, and comprises a breathing mask, an air intake mask, a lower jaw fixing tray and a "Y"-shaped fixing belt. Both ends and the bottom of the breathing mask are evenly installed with The fixing rings, and the fixing rings at both ends of the breathing mask are equipped with "Y"-shaped fixing belts, the fixing rings at the bottom of the breathing mask are fixed with connecting belts, and one end of the connecting belts is connected with a jaw fixing tray. The invention is equipped with a breathing mask, a lower jaw fixing tray, a tray fixing belt, a connecting belt, an elastic belt, a "Y"-shaped fixing belt, a fixing ring and a silicone sleeve, so that the breathing mask is conveniently placed at the position of the child's mouth and nose, and makes The elastic belt is fixed on the back of the child's head, the chin fixing tray is fixed on the bottom of the child's chin, and the tray fixing belt and the elastic belt are fixed to fully fix the device on the child's face to avoid falling off during use.

The invention discloses a feeding mechanism for a textile machine capable of layered carding and pretreatment of cotton spun yarns, comprising a fixed frame, a first carding plate, a doubling cylinder, a telescopic cutting blade, a threaded rod and a textile machine body. A take-up roller is rotatably connected in the fixed frame, and the cotton spinning yarn body is wound on the take-up roller. The screws in the fixed frame are connected to the first carding plate, and the screws in the fixed frame are connected to the second carding plate. The drive motor is fixed by welding, and the output end of the drive motor is rotatably connected with a fixed shaft, and a transmission belt is meshed and connected with the fixed shaft. The feeding mechanism is provided with a second carding plate, under the action of the first carding plate, the cotton spinning yarn body on the winding roller can be combed in the first stage, and the cotton spinning yarn body after the primary carding passes through the second Under the action of the carding plate, the dispersed secondary carding work can be carried out, which effectively improves the carding efficiency of the cotton spinning yarn and reduces the processing cost at the same time.