35results about How to "Less prone to detachment" patented technology

The invention discloses a method for preparing a fiber braided tube embedded enhanced type polymer hollow fiber microporous membrane, which is characterized by adopting a fiber-braiding and coextrusion integrative membrane forming process, namely a core liquid tube is fixed in the middle of the braded tube, a fibrous bundle is braided into a fiber braided tube along the core liquid tube, then casting film liquid, core liquid and the fiber braided tube are co-extruded by an extrusion die, and the fiber braided tube embedded enhanced type polymer hollow fiber microporous membrane is prepared bya phase transformation method. The method successfully embeds the fiber braided tube into the body of the hollow fiber microporous membrane and introduces the core liquid into the inner cavity of thebraided tube, and effectively controls the inside diameter of the hollow fiber microporous membrane, so that the technical problems that in the prior coating process of preparing a fiber braided tubeenhanced type hollow fiber membrane, a polymer layer is easy to break away from the fiber braided tube, the hollow fiber inner cavity is easy to be blocked, and the like are solved, thus the polymer hollow fiber microporous membrane with high backwashing pressure, high mechanical strength, high flux, high retention performance and hydrophilic property is obtained.

The invention relates to an electric balance bike and solves the technical problems of inconvenience in steering and folding adjustment of the existing electric balance bikes. The electric balance bike comprises a pedal pedestal, a running driving mechanism, a control circuit, a power supply module, a control rod, a turning axle bed, two handle bodies, a rotating shaft and swinging connection joints. Clutch positioning mechanisms are arranged between the two ends of the rotating shaft and the turning axle bed, sleeves sleeve the peripheries of the swinging connection joints, the sleeves are connected with axial positioning mechanisms, when the sleeves can move axially after the axial positioning mechanisms release the axial positioning on the sleeves, thus the swinging connection joints are made to be positioned outside the sleeves, and the handle bodies can swing relative to the rotating shaft. The electric balance bike has the advantages that control handles can be folded and rotated, the control handles can be held in multiple postures, thus electronic equipment can be quickly installed and fixed, a display screen is automatically turned off when the electronic equipment is installed, the electronic equipment is good in installation stability and does not fall easily, and the electronic equipment can be released quickly through upwards pushing a lower holder.

The invention discloses a following type walking mechanism for a double-beam dispatching and transporting crane, and belongs to the technical field of crane machines. The following type walking mechanism comprises a cross beam, wherein transmission cases are both mounted at the two ends of the cross beam; each transmission case comprises a front cover and a rear cover; a first wheel body, a secondwheel body and a third wheel body are arranged between each front cover and each rear cover; each first wheel body comprises a bearing and a wheel; a plurality of rectangular groove openings are formed in one side of the corresponding front cover while a horizontal groove is formed in the other side of the corresponding front cover; the corresponding first wheel body, the corresponding second wheel body and the corresponding third wheel body are fixedly connected with each other through connecting wrenches; a pair of end plates are arranged between the two connecting wrenches; each end plateis fixedly connected with an electromagnetic pull plate and a piston rod; a transmission shaft is mounted on each rear cover; each transmission shaft is in belt connection with each rotating shaft through a corresponding belt. According to the following type walking mechanism for the double-beam dispatching and transporting crane disclosed by the invention, positions of the wheel bodies are controlled, so that a stress state of horizontal walking of the crane is changed, the wheel bodies are effectively protected, and the service life of the wheel bodies is prolonged.