6results about How to "Avoid insufficient clamping force" patented technology

The utility model provides a flange circumference detection tool, which relates to the technical field of flange detection tools and comprises a base, a telescopic driving device, a bearing table, a top table and a clamping mechanism. According to the flange circumference detection tool, a to-be-fixed flange plate is placed on the upper end face of the bearing table in a sleeving mode, the telescopic driving device is started, the center shaft drives the upper base to move downwards, in the downward moving process of the upper base, the side shafts on the circumferential side of the upper base make contact with the sliding shafts and push the sliding shafts to slide outwards along the sliding grooves, and the clamping plates on one sides of the sliding shafts expand outwards; the multiple clamping plates conduct expansion clamping on an inner round hole of the flange plate at the same time, after the clamping mechanism clamps the flange plate stably, the threaded rod is sleeved with the pressing plate, the pressing plate is fixed through the fixing nut, the flange plate is prevented from longitudinally slipping, the clamping operation process is simple and rapid, then circumference detection is conducted on the flange plate, and the tool provides enough clamping force, so that the machining efficiency is improved. The flange plate can be effectively fixed, displacement or distortion cannot occur in the detection process, and the accuracy of the detection result is ensured.

The invention discloses a section bar for a photovoltaic module frame and the photovoltaic module frame, and relates to the technical field of solar photovoltaic modules, the section bar comprises a section bar body, the section bar body comprises a supporting assembly, the side surface of the supporting assembly is fixedly connected with a connecting plate, the side surface of the connecting plate is fixedly connected with a limiting assembly and a mounting assembly, and the limiting assembly is fixedly connected with the mounting assembly. The mounting assembly is located below the limiting assembly. In the using process, the telescopic compensation frame is arranged between the first fixing plate and the limiting plate and is designed to be S-shaped, and when the overall profile body generates thermal expansion deformation to loosen limiting of the solar cell, the S-shaped telescopic compensation frame can generate thermal expansion deformation towards the two sides at the moment, so that the solar cell is prevented from being damaged. The limiting plate is pushed through thermal expansion deformation generated by the telescopic compensation frame, so that it is ensured that the limiting plate and the second fixing plate have enough clamping force on the solar cell to limit and fix the solar cell, and the reliability, stability and power generation efficiency of the whole photovoltaic module are improved.

The present invention relates to an adaptive stent delivery device, comprising: a microcatheter, comprising a catheter lumen; a push guide wire, one end of which is movably arranged in the catheter lumen, and the other end of which is located to penetrate the catheter lumen to the outside; a first pad group, comprising a first friction pad and a second friction pad, one end of the first friction pad and the second friction pad are both arranged on the push guide wire; the other end of the first friction pad and the other end of the second friction pad are arranged in a direction away from each other, and an angle is formed between the two; the first friction pad and the second friction pad are respectively arranged on both sides of the push guide wire along its length direction; the first friction pad is longer than the second friction pad, and the first friction pad is thicker than the second friction pad; wherein the first pad group can move toward the distal end or the proximal end with the push guide wire. The tension formed between the first friction pad and the second friction pad is used to support the stent outward and adapt to a variety of microcatheters with different inner diameters.

The utility model provides a bullet cabinet with a protection device, which relates to the technical field of bullet storage, and comprises a main body and a protection mechanism, the protection mechanism is arranged on one side of the main body, through the arrangement of the protection mechanism, each group of guns are independently isolated, the independent protection of each group of guns is realized, the damage range is controlled through isolation, and the replacement is convenient. The gun rear support is placed in the groove of the isolation plate, the lower sponge mat provides flexible protection, the control screw is rotated to adjust the height of the fixing frame to adapt to different gun lengths, the upper section of a gun is clamped by the retention sponge mat and the sliding sponge mat, flexible protection is provided, the tension spring pulls the sliding block to slide towards the fixing frame, and enough clamping force is provided. The multiple sets of main bodies and the protection mechanisms are connected through clamping grooves in the splicing box to achieve independent isolation of the multiple sets of guns, meanwhile, the damaged protection mechanisms are convenient to replace, separation blades abut against the main bodies to prevent falling, and an external elastic protection plate reduces damage to the guns in the device caused by external collision.

The utility model belongs to concrete guardrail unloading technical field, concretely relates to a kind of double-side grabbing type concrete guardrail unloading structure, including lifting support, and two clamping mechanisms that are symmetrical left and right are installed on lifting support, the clamping mechanism includes swing frame hinged on lifting support, swing frame drive assembly is connected between the upper end of swing frame and lifting support, the lower end of swing frame is fixedly connected with shaft seat, and turnover shaft is rotatably connected in shaft seat, one end of turnover shaft is connected with turnover shaft drive assembly, the other end of turnover shaft is fixedly connected with mounting seat, and clamping seat is hinged on mounting seat.The utility model can drive two swing frames to swing relatively by the action of two swing frame drive assemblies, to drive two clamping seats to clamp concrete guardrail, to realize the grabbing of concrete guardrail;By the action of two turnover shaft drive assemblies, two turnover shafts can be driven to rotate 180 °, i.e., concrete guardrail can be driven to overturn 180 °, to realize that the bottom surface of concrete guardrail is placed downward.

This utility model belongs to the field of fixture technology, and in particular to an adjustable fixture for drilling heat exchangers. It includes a worktable with mounting plates at the four corners of its top. A fixture body is mounted on the top of each mounting plate, and the fixture body is used to clamp the workpiece. Multiple positioning holes are arranged on the top of the worktable, and locking nuts are installed at the bottom of the mounting plates. By setting mounting plates at the four corners of the worktable top, and by having the locking nuts at the bottom of the mounting plates cooperate with the positioning holes on the top of the worktable and the bottom insert rods, this utility model allows the fixture body to be flexibly adjusted on the worktable according to the specific size, shape, and drilling position requirements of the heat exchanger workpiece. This design breaks the limitations of traditional fixtures with fixed positions. Whether it is small-area precision drilling of small heat exchanger workpieces or multi-position drilling of large workpieces, adaptation can be achieved by simply adjusting the position of the mounting plates.