10results about How to "Adjustable extension length" patented technology

The utility model relates to the technical field of indoor decoration, and provides a fabricated decoration wallboard which comprises boards, connecting pieces and a mounting structure frame. The mounting structure frame comprises a fixed frame and a connecting frame which are fixedly connected. The connecting piece is installed between a plate and a blank wall and comprises angle iron, an expansion bolt and a hanging piece. The angle iron is fixed on a blank wall through expansion bolts, the pendant is mounted at the upper end of the angle iron, the fixing frame is detachably connected with the pendant, and the connecting frame is arranged on one side of the fixing frame. Magnetic sheets and raised lines are arranged on the back side of the plate, the magnetic sheets are adsorbed on the connecting frame, and the raised lines support the connecting frame to share the weight of the plate. Through magnetic connection and a raised line supporting structure, rapid installation and replacement of the wallboard are achieved, meanwhile, the position of the hanging piece is adjusted to adapt to the uneven surface of a blank wall, and the overall flatness of the wall face is guaranteed.

This utility model discloses a production and processing equipment for diamond mesh security screens, belonging to the field of screen processing technology. It includes a workbench with mounting grooves on both sides of its upper surface. Each mounting groove is rotatably connected to a threaded screw via bearings. Each threaded screw has a mounting seat threaded onto its surface. A clamping plate is fixedly connected to the upper end of each mounting seat. Each clamping plate has sliding grooves at both ends, and sliding rods are movably connected inside the sliding grooves. This utility model, by setting up clamping plates, ensures the window frame's stable position and precise positioning during processing, improving the equipment's versatility and practicality. By setting up positioning components, the device can flexibly meet the positioning needs of different corners of the security screen, achieving effective positioning of each corner of the security screen, ensuring the security screen remains stable during processing, and improving the overall quality and aesthetics of the product.

The utility model discloses a special heating plate for a thermal cutting knife, which relates to the technical field of thermal cutting and comprises two symmetrically arranged heating main plates, one side of each heating main plate is fixedly connected with a heat insulation plate, and each heat insulation plate is connected with a limiting bolt through threads. The heat insulation plate is made of multiple layers, effective heat insulation can be carried out on one side of the heating main plate, and therefore scalding caused by the too high surface temperature of the heating plate is avoided, and potential safety hazards when the heating plate is used can be reduced; the heating plate can be installed on the two sides of the cutting knife in an auxiliary mode, the cutting knife is wrapped through the heating plate, the contact area between the cutting knife and the knife face is increased, an anti-sliding block on one side of an extending block makes contact with the knife face, displacement of the heating plate in the using process can be reduced, a limiting bolt is rotated, the extending length of the limiting bolt can be adjusted, and the heating plate is convenient to install and disassemble.

The application discloses an office partition steel structure frame, which comprises a first partition plate, a sliding groove is formed in the right end surface of the first partition plate, a sliding plate is slidably connected in the sliding groove, sliding grooves are symmetrically formed in the sliding groove, sliding plates which are matched with the sliding grooves are symmetrically and fixedly connected to the outer side of the sliding plate, a plurality of insertion grooves are formed in the inner wall of the sliding groove, a cavity is formed in the sliding plate, two sliding rods are symmetrically and slidably connected in the cavity, springs are fixedly connected between the two sliding rods, and moving grooves which are communicated with the cavity are formed in the two opposite sliding plates. The application realizes flexible adjustment of the partition angle, the second partition plate can freely rotate around the shaft rod through the cooperation of the sliding plate and the rotating groove, the limitation of the traditional ninety-degree right-angle partition is broken, the demand of special-shaped building space and diversified office layout is met, and the problem of insufficient adaptability of the existing rigid connection mode is solved.

The utility model discloses a modularized booth structure, and relates to the technical field of building equipment. The device comprises a supporting bottom plate and a first vertical beam body arranged over the supporting bottom plate, and further comprises a balancing weight fixed to the center of the upper end face of the supporting bottom plate, a trapezoidal clamping groove is formed in the upper end face of the balancing weight, and an adjusting assembly is clamped in the trapezoidal clamping groove; the rotating gear can be driven to rotate by rotating the rotating handle, and the rack is in meshed connection with the rotating gear, so that the extending square pipes on the two sides can be driven to move oppositely along with the rack, the extending length of the extending square pipes can be adjusted, and the distance and the position between the two sets of supporting bottom plates can be adjusted according to actual site requirements; and the arranged clamping plate bodies can be clamped in trapezoidal clamping grooves formed in the upper end faces of the balancing weights on the two sides, the supporting bottom plates on the two sides are connected, the stability of the whole exhibition stand structure is improved, the extending square pipes can be shortened to be stored during disassembly, and transportation is more convenient.

The utility model discloses a vibration detector capable of adjusting the length of a detection head, which relates to the technical field of handheld vibration detectors and comprises a detector body. A sliding groove is formed in one side of the detector body, a sliding base sliding along the sliding groove is arranged in the sliding groove, a cylinder is connected to one side of the sliding base, a detection head is installed at the end, away from the sliding base, of the cylinder, the detection head is connected with a transmission line, the transmission line penetrates through the cylinder and the sliding base, and the other end of the transmission line is connected with the detector body. The detection head is driven to move through a sliding structure of the sliding seat and the sliding groove, the extension length of the detection head can be adjusted, the detection flexibility is improved, and the vibration detection device is suitable for vibration detection of a sunken part or a gap part of equipment; and during storage, the detection head can be prevented from extending too long, so that the detector is regular in appearance and convenient to store, and the damage to the detection head is reduced.

A self-locking mechanism comprises a positioning sliding seat, a positioning sliding sleeve, a supporting rod, a locking rod, a first guiding positioning sleeve, a second guiding positioning sleeve and a third guiding positioning sleeve, the positioning sliding sleeve is arranged in the positioning sliding seat in a sliding fit mode and is limited in the circumferential direction, the first guiding positioning sleeve, the second guiding positioning sleeve and the third guiding positioning sleeve are sequentially fixed in the positioning sliding sleeve, and four first oblique teeth are arranged on the annular face of the first guiding positioning sleeve; two groups of second helical teeth are arranged on the annular surface of the second guide positioning sleeve, an opening groove extending in the radial direction is formed between every two adjacent groups of second helical teeth, the number of the helical teeth of each group of second helical teeth is two, a guide strip-shaped hole is formed in the side wall of the third guide positioning sleeve, and the lock rod is rotatably arranged in the second guide positioning sleeve. One end of the locking rod extends out of the positioning sliding seat and is fixedly provided with a hook head, the locking rod is provided with a fixed clamping arm extending in the radial direction, the other end of the locking rod is sleeved with a movable clamping arm, one end of the supporting rod is fixedly connected with the positioning sliding sleeve, and the other end of the supporting rod extends out and is sleeved with a reset spring. The self-locking device is simple in structure and low in machining cost and has a self-locking function.

The utility model relates to the technical field of limit switch, and disclose a kind of adjustable elevator limit switch, including fixed part, the side of fixed part is provided with switch part, the side of switch part towards fixed part is provided with connecting piece, the symmetrical both sides of connecting piece are all fixedly connected with side frame, the circumferential surface of fixed part is recessed to form annular groove, the side of connecting piece away from switch part is rotatably connected on fixed part, the free end of two side frames is all inside annular groove, and the second limit rod is screw-connected on two side frames;The utility model is through being provided with fixed part, annular groove, side frame and second limit rod, when using, rotating around the annular groove on fixed part by connecting piece and second limit rod, when switch needs to be reinstalled positioning, without disassembly, not only reduce maintenance cost and workload, also shorten elevator downtime, can not affect normal use of elevator.

The present invention proposes a back connection device for a lower limb rehabilitation robot, comprising a bottom structure connected to the lower limb rehabilitation robot, an intermediate structure arranged in the bottom structure and movable up and down, a connection structure installed on the intermediate structure, and an upper backrest structure and a lower backrest structure with adjustable extension length arranged on the connection structure away from the bottom structure, a lead screw is vertically arranged in the middle of the bottom structure, a worm gear pair is arranged on the top of the lead screw, and the first worm gear is coaxial with the lead screw, the worm is perpendicular to the lead screw and a first hand wheel is arranged at both ends, a moving block matching the lead screw is sleeved on the lead screw, and the intermediate structure is fixedly connected to the moving block. The present invention solves the problems of inflexible up and down and left and right adjustment of the left and right leg fixing mechanism of the lower limb rehabilitation robot and inconvenient adjustment of the supporting position of the backrest structure.