52results about How to "Increase support length" patented technology

The invention relates to support means, which is for supporting a lateral conveyor adapted for mounting upon a mobile chassis, including a tail section, middle section and at least one head section having pivot points related to the conveyor frame separating said sections from each other. The support means includes a variable length mounting arm comprising at least first and second sections and first and second ends, and means for locking the length of the mounting arm into at least one fixed length corresponding to the length of the conveyor in use. The first end is fixed immobile in relation to the mobile chassis and the second end is fixed immobile in relation to the head section of the conveyor. Also, the support means is configured to provide at least three kinematic pairs, a first kinematic pair being formed by the first section and the mobile chassis, a second kinematic pair is formed by the first and second sections, and the third kinematic pair is formed by the second section and the head section of the conveyor and is provided by a joint, the support means being further configured such that the first, second and third kinematic pairs respectively provide for two, one and three degrees of freedom of movement.

The present disclosure relates to diagnostic test devices that provide increased comfort and ease of use. The diagnostic test device can include a test member, such as a lateral flow assay test strip. The test device can further comprise a housing that comprises a substantially arch shaped handle. The housing of the test device can comprise a base member that is attached to a curved lower surface of the housing and that can improve stability of the device in an upward facing position as well as enable angled positioning of the device relative to a flat, horizontal surface. The curvature of the test device in particular can provide secure handling of the device while also improving ease and comfort of use thereof. The disclosure further relates to methods of determining the presence of an analyte in a fluid sample and methods for evaluating a test result of a personal use diagnostic test device.

The invention relates to an in-time supporting device for a fully-mechanized coal mining machine, comprising a pedestal, a top beam, a hydraulic upright post which connects the pedestal and the top beam, side frames which consist of four link mechanisms, and a telescopic connecting beam and a hydraulic cylinder which are hinged between two side frames. The invention adopts the technical key pointsthat: top beams of the side frames adopt front top beams or continuous top beams; the side frames which are arranged in parallel and provided with the front top beams or the continuous top beams arehinged into a front support or a continuous support through an arched beam or a horizontal beam; shun beams are arranged on the arched beam or the horizontal beam at intervals; belt guard beams or telescopic shun beams are arranged between adjacent shun beams. The in-time supporting device for the fully-mechanized coal mining machine effectively solves the problems in the prior art of lagged supporting means, difficult frame movement, requirement of stop operation, low efficiency and so on, is reasonable in structural design, stable in supporting operation, convenient in assembly and disassembly and maintenance, and safe and reliable in use, preferably meets the requirements of matched operation of underworkings and the fully-mechanized coal mining machine, realizes in-time mechanical support of a just exposed roof of a tunneling work surface of a laneway, and shields the fully-mechanized coal mining machine to realize continuous operation.

The invention belongs to the technical field of a gun head of a hot riveting gun, and particularly relates to a gun head of a pneumatic hot riveting gun. The gun head of the pneumatic hot riveting guncomprises a connecting block, four installing and clamping heads and installing heads, wherein first slide grooves in uniform arrangement are formed in the end surface of the left side of the connecting block; a first slide block is glidingly connected in each first slide groove; the four installing and clamping heads are fixedly connected with the first slide blocks in a one-to-one mode; the right side of each installing and clamping head is rotationally connected with a first driving block in the inner wall of the connecting block; first arc-shaped grooves in uniform arrangement are formedin the inner wall of the first driving block; and each first slide block is glidingly connected with the arc-shaped grooves in uniform arrangement. The gun head of the pneumatic hot riveting gun is mainly used for solving the problems that an existing gun head of the hot riveting gun in the market can only be used for installing the same kind of bolts or rivets, and when bolts or rivets of different models need to be installed, gun heads of other models need to be replaced, so that the installation efficiency is reduced, and resource waste is caused; and meanwhile, the existing gun head of thehot riveting gun can only be installed on the hot riveting guns of the same model.

Provided is a shock absorber, comprising an oil storage cylinder (13), a working cylinder (14), a piston rod (6), a guiding and sealing assembly used to guide the movement of the piston rod (6), and an expansion and circulation valve assembly and a compression and compensation valve assembly provided on a piston (16). The guiding and sealing assembly comprises a guide seat (27, 29) and an oil seal (34) located at the upper end of the guide seat. The face of the upper end of the guide seat (27, 29) is formed with an oil storage groove, and the oil storage groove has an oil-air separation contact surface (35). An elastic separation lip (36) is formed on the oil seal (34) and the elastic separation lip (36) is in airtight contact with the oil-air separation contact surface (35) such that the oil storage groove is separated into an outside part and an inside part. Moreover, further provided are a vehicle suspension system and a vehicle comprising the shock absorber. The piston rod of the shock absorber has good movement stability, the friction between the piston and the inner wall of the working cylinder is low, and the shock absorber has a long service life and has significantly improved dampening effects.

The invention discloses a masonry structure integrity reinforcing method. In the method, an end reinforcing member is arranged at the junction between a floor and a wall surface; an upper end reinforcing member is arranged at the top of the wall, and a lower end reinforcing member is arranged at the bottom of the wall; when a ring beam exists, the upper end reinforcing member is not necessary, and a wall end reinforcing member is arranged at the junction of two walls; when a constructional column exists, the wall end reinforcing member is not necessary, a plate bottom reinforcing member is arranged at the bottom surface of the floor and is in cross connection with the upper end reinforcing member, and a wall surface reinforcing member is arranged on the wall surface and is in cross connection with the end reinforcing member; the upper end reinforcing member is connected with the wall surface reinforcing member, the plate bottom reinforcing member and the wall end reinforcing member; the lower end reinforcing member is connected with the wall surface reinforcing member and the wall end reinforcing member; and the upper end reinforcing member, the lower end reinforcing member, the wall end reinforcing member, the wall surface reinforcing member and the plate bottom reinforcing member are connected in a whole. Compared with the traditional reinforcement, the reinforcement of the floor and the reinforcement of the wall surface are connected with each other, the structural integrity is better, and the construction is simple and convenient and free from the influence of ambient temperature.

The invention relates to a guide ring overwelding seam large-cylinder bottom double-telescopic upright column. The telescopic ratio of the double-telescopic upright column is effectively enhanced through a guide ring overwelding seam structure and a method for increasing the spheric radius of the bottom of an outer cylinder; the safety of the double-telescopic upright column is effectively enhanced by adding a bypass safety valve to the double-telescopic upright column; and the guide ring overwelding seam is realized by adopting an interference avoidance structure without processing after a cylinder bottom and a cylinder barrel are welded, thereby the processing process is simplified and the maintenance of a cylinder body is facilitated in the using process; and in addition, the invention is especially suitable for a low-coal-seam hydraulic support and a hydraulic support which has lower support efficiency caused by insufficient telescopic ratio of the double-telescopic upright column.