32results about How to "Prevent pull up" patented technology

The present invention belongs to the field of combination piles, especially involving a kind of civil engineering building combination pile, including piles and support piles.There are multiple buffer springs between the buffer board and the fixed connection between the buffer board and the support pile. There is a partition of the sliding connection in the inserting pile, and the lower side of the partition is injected with water.There are multiple stretching springs in a fixed connection. The lower end of the buffer plate is fixed with a variable resistor, and a metal guide rod is fixed on the resistor.There is a adjustment mechanism that cooperates with the slide sheet on the partition.The present invention allows the combined pile to automatically regulate the resistance between itself and the soil according to the changes in temperature, to avoid the combination piles from being pulled up, affecting the stability of the overall structure.

The invention belongs to the field of overhead cable testing, and relates to an experimental method and device for bending stiffness of an overhead cable under tension-bending combination. The traditional three-point bending test cannot measure the response of overhead cables under combined tension and bending loads. This proposal provides a measurement device and experimental method for the bending stiffness of overhead cables. According to the actual working conditions, the load equivalent method is adopted. By improving the three-point bending test, design a set of experimental support consisting of base support, extension frame and vertical support frame, and use a universal testing machine to apply radial tension, and hang weights at both ends of the sample cable to exert force on the sample cable. Axial tensile force, the tensile force output from the universal testing machine and the displacement data of the middle point of the cable body, combined with the data of two laser sensors symmetrical to the middle point, the bending of the overhead cable under the combination of multiple reciprocating stretching and bending is calculated and analyzed. The hysteresis curve of moment and curvature can be used to study the change of bending stiffness.

The invention relates to a brush roll cotton picker and belongs to the technical field of agricultural machinery. The brush roll cotton picker comprises a picking table, an air conveying device, a cotton boll separating device, an impurity cleaning device and a cotton collecting box which are arranged on a self-walking chassis, the impurity cleaning device comprises primary, secondary and tertiary tooth rollers, one side of the primary tooth roller is provided with an upper brush, one side of the secondary tooth roller is provided with a middle brush, one side of the tertiary tooth roller is provided with a lower brush, sides of the primary, secondary and tertiary tooth rollers are provided with interval arranged beating rods respectively, an upper brush roller is arranged below the primary tooth roller, a lower brush roller with bristles which simultaneously contact with outer circles of the secondary and tertiary tooth rollers is arranged below the secondary tooth roller, an arc barrier is mounted on the lower side of the tertiary tooth roller, one side in a casing, which is far from the beating rods, is provided with a cotton collecting flow channel which conveys air flow from bottom to top, and the cotton collecting flow channel is provided with upper and lower flow suction openings. The bottom of the cotton collecting flow channel is connected with an air outlet of a cotton conveying fan. By means of the brush roll cotton picker, cotton fiber damages can be remarkably reduced, the impurity cleaning effect is improved, the impurity content rate is lower than 10%, meanwhile, the recycling effect is enhanced, and the unginned cotton loss can be greatly reduced.

The invention discloses a two-way pleated fabric preparation device and a debugging method thereof, comprising: a gripping mechanism and a pulling mechanism connected to the gripping mechanism, the gripping mechanism includes two side splints and a middle splint, and the side splints are respectively located at On both sides of the width of the middle splint, the side splints are rotationally connected to the middle splint through the rotating shaft, and the outer edge of the side splint far away from the rotating shaft is semi-fixedly connected to the outside, the outer edge can only move in a straight line, and the middle splint is fixedly connected to the pulling mechanism; The pulling mechanism includes a traction column and a base box that is movably connected to the traction column. The middle splint is fixedly connected to one end of the traction column. The base box is located at the end of the traction column away from the middle splint. The base box moves horizontally in the opening, and the present invention can remake the fabric into a bidirectional pleat pattern through the sequential cooperation of the two side splints and the middle splint, and the fully automatic process greatly saves labor costs.

The invention discloses a grouting suction anchor comprising a cylinder body; the cylinder body has an integral structure comprising an upper part, an intermediate part and a lower part; the diameter of the upper cylinder body is identical to that of the lower cylinder body; the diameter of the intermediate cylinder body is less than those of the upper cylinder body and the lower cylinder body; the upper, the intermediate and the lower cylinder body share a same center line; a top part of the upper cylinder body is provided with multiple grouting inlets and scuppers; the grouting inlets are communicated with a grouting channel inside a side wall of the upper cylinder body; the grouting channel extends downwards to a lower end surface of the upper cylinder body; an outlet of a lower end of the grouting channel is positioned between the outer lateral surface of the upper cylinder body and the outer lateral surface of the intermediate cylinder body; the grouting channel and the cylinder body inner chamber are separated from each other. The invention also discloses an installation method of the suction anchor. After downward penetration of the suction anchor is completed, the intermediate cylinder body and soil body interspace are filled with cement mortar which can improve the lateral bearing capacity of the suction anchor. After the cement mortar is solidified, the friction coefficient between surrounding soil body and anchor cylinder contact surface is increased and the limit bearing capacity of the suction anchor is increased.

The invention discloses a high-strength automobile rear-row seat framework, which comprises a seat frame of a closed frame-shaped structure, a plurality of front seat legs and a plurality of rear seat legs are arranged below the seat frame, the front seat legs and the rear seat legs are arranged front and back in two rows, the top ends of the front seat legs are connected with the front part of the seat frame, and the top ends of the rear seat legs are connected with the rear part of the seat frame; and a plurality of inclined supports are arranged in the seat frame at intervals, the front end of each inclined support is connected with the lower part of one front seat leg, and the rear end of each inclined support is connected with the rear part of the seat frame. According to the rear-row seat framework structure, the front and rear seat leg structural design is adopted, the rear-row seat framework structure can be suitable for an automobile body structure without protrusions in the rear row, meanwhile, when an automobile collides and a safety belt stretches forwards, the seat framework, the supporting legs and the inclined supports form a truss structure, part of stress of the rear seat legs is transmitted to the front seat legs, and the strength of the framework is improved, so that the rear seat legs are prevented from being directly pulled up from the floor surface of the vehicle body.

The invention provides a crane, a tower arm control method and a tower arm control device, and relates to the technical field of engineering machinery. When the main arm stretches, the controller obtains the actual angle between the tower arm and the mast structure; adjusts the retracting speed of the winch according to the comparison between the actual angle and the preset safe angle range so that the actual angle is stable at the preset Safe angle range. In the tower arm control device, the acquisition module is used to obtain the actual angle between the tower arm and the mast structure; the control module is used to adjust the winding speed of the winch according to the comparison between the actual angle and the preset safe angle range. The crane, the control method of the tower arm and the control device of the tower arm can facilitate the coordinated control of the winch and the main arm. The risk of vehicle overturning due to the lifting of the tower arm from the ground is convenient for operation and good in reliability.

The invention discloses an intelligent sample processor, and in particular relates to a medical instrument capable of helping doctors to finish certain mechanical work. The intelligent sample processor comprises a system control device, a pipette device, sample transfer equipment and a sample transfer frame, wherein a user drives the pipette device to perform related operation through a command input through the system control device; the pipette device comprises a large hand, a small hand, a supporting plate and two fleeing prevention pressing plates, wherein the large hand, the small hand and the supporting plate cooperate with each other to finish the pipetting operation; the sample transfer equipment comprises a pipette, a sample bottle and a centrifuge tube; and the sample transfer frame comprises a pipette limit hole, a sample bottle limit hole, a centrifuge tube limit hole and a transfer frame limit hole. The intelligent sample processor is suitable to be used in large hospitals when sampled liquid of patients is transferred so as to avoid excessive personnel input in the mechanical work.

To provide a manufacturing technique of an adhesive tape roll capable of always forming a cutting line for cutting an adhesive tape at a fixed position. There is a take-up roller (32) for winding the adhesive tape (2) drawn out from the mother roller (31), and it is arranged between the mother roller (31) and the take-up roller (32), and the adhesive tape (2) The cutting line forming rollers (33) on which the cutting lines (4) are formed at predetermined intervals make the take-up roller (32) and the cutting line forming rollers (33) rotate synchronously via predetermined gears (40).

The invention discloses an automobile sag repairing tool. The automobile sag repairing tool comprises a pulling force part and a pair of adsorption chains; each adsorption chain is formed in the modethat at least four rectangular hinge blocks are hinged to one another, and the bottoms of the side faces, in the same direction, of the opposite faces of the rectangular hinge blocks are provided withhinge points used for allowing the adjacent rectangular hinge blocks to be hinged; hooks are arranged on the rectangular hinge blocks located at the corresponding ends of the sides, far away from thehinge points, of the adsorption chains; and the rectangular hinge blocks are provided with T-shaped fixing rods in a penetrating mode in the width direction, and suction cups are arranged at the ends, close to the hinge points, of the T-shaped fixing rods. According to the automobile sag repairing tool, in the repairing process, a pair of the adsorption chains are symmetrically adsorbed to the two sides of an automobile sag, a rotating handle is rotated to enable a rotating shaft to wind a first connecting rope and a second connecting rope, the first connecting rope and the second connectingrope pull the adsorption chains to rotate to repair the sag, no supporting point is needed in the repairing process, the condition that in the repairing process, counter-acting force is generated to act on an automobile to generate an adverse effect is avoided, labor is saved, operation is easy, and the automobile sag repairing tool is suitable for a green hand.

The invention discloses a foundation pile hole reinforcement device for building construction with double reinforcement effects, which includes a reinforcement device body, which includes: two symmetrically arranged fixing plates, and bolt fixing blocks are symmetrically installed up and down on the outer sides of the two fixing plates The internal thread of the bolt fixing block is connected with bolts, and the left and right sides of the bolt are threaded with fixing nuts, and the two symmetrically arranged fixing plates are connected through the bolts and fixing nuts; the two opposite outer sides of the fixing plates are symmetrically arranged with fixing devices; The foundation is fixed in two symmetrically installed fixed plates, and the foundation piles are fixed on the ground under the cooperation of the fixed plates, so that it is not easy to cause deviation. At the same time, the fixing device fixes the fixed plates so that the fixed plates can be fixed on the ground, so that The foundation is further stabilized, which has a double reinforcement effect on the foundation piles, improves the structural reinforcement effect, improves the stability of the foundation of the building or ground engineering, and plays a reinforcing role in the building or the stratum.