74results about How to "Avoid changing angles" patented technology

The invention discloses a rotating shaft welding fixture of a drawer seat drive mechanism of a low-voltage switch board, which has the technical scheme that a locating square bar is fixed in a square groove on a soleplate, both ends and the middle of the locating square bar are provided with locating notches, a guide block corresponding to small segment gears and a position locating block corresponding to big segment gears are fixed on the locating notches, a gear angle locating block is fixed in the position locating block, and a locating slide rod is fixed in the guide block; two shaft angle locating blocks are fixed on the soleplate between the position locating block and the guide block, and the side faces of the shaft angle locating blocks are fixed with a shaft direction locating block matched with a lantern ring groove on a rotating shaft; two clamps are respectively fixed on the two shaft angle locating blocks and are distributed at two sides of the two small segment gears, and two springs are arranged under the locating slide rod and are opposite to the two small segment gears in the vertical direction; the four segment gears are clamped and welded once, thereby enhancing the welding precision and having precise location and convenient and quick clamp.

The invention discloses a centering measurement apparatus for measuring the center distance of two intersecting holes in an intersecting hole system. The centering measurement apparatus comprises a two-hole positioning and centering device including an elastic centering expanding sleeve, a centering pull bar, a centering pressure bar, an eccentric wheel compacting mechanism and a positioning pin, a variable-pitch cam mechanism including a handle, a servo-actuated eccentric cam, a bearing positioning circular section and a cooperative column, and an auxiliary centering mechanism, wherein the two-hole positioning and centering device is inserted in a first hole system of a part to be measured, the eccentric wheel compacting mechanism is rotated to move the centering pull bar and centering pressure bar and open the elastic centering expanding sleeve to center the first hole system, and the variable-pitch cam mechanism and the auxiliary centering mechanism are inserted in two sides of a second hole system of the part to be measured. The handle is rotated to drive the cam to rotate, so that the rim of the cam is tangent to the excircle of the elastic centering expanding sleeve, and angle scales corresponding to different center distances of the first hole system and the second hole system are radially marked on the end face of the servo-actuated eccentric cam. The actual center distance of the intersecting holes of the part to be measured can be rapidly obtained by observing the angle graduation lines, and rapid and accurate measurement is realized.

The invention discloses a device assisting C-arm machines with accurate shooting, and relates to the field of medical instruments. The device assisting C-arm machines with accurate shooting comprisestelescopic circular hoops, wherein a plurality of mounting seats are arranged on the circular hoops; the mounting seats are detachably and fixedly connected to the circular hoops; a battery frame is arranged in each mounting seat; a laser lamp placing groove is formed in one side of the battery frame; a laser lamp is arranged in each laser lamp placing groove; an emission hole is formed in each mounting seat; each emission hole is communicated with each laser lamp placing groove; each laser lamp is a cross laser lamp; and each emission hole is eccentrically arranged against each laser lamp. The device has the beneficial effects that: the device can effectively and continuously fix the laser lamps, avoids the change of the laser beam angle caused by the displacement of the laser lamps, conveniently replaces the lost laser lamps, has a simple structure, can be installed on C-arm machines of different types easily, has low manufacturing cost and high cost performance, and can be popularized and applied all over the country.

The invention discloses a bump punching mechanism for a solar panel bracket. The bump punching mechanism comprises a base, wherein profile steel with a bottle-shaped cross section is arranged on the base. The bump punching mechanism is characterized in that supports are arranged on the base on two sides of the profile steel, and two transverse rod holes are formed in the same horizontal plane of each support; ejector rods are arranged in the transverse rod holes, ejecting blocks are fixed at inner ends of the two ejector rods on the same support, and bulges are arranged on adjacent surfaces of the two ejecting blocks; stop blocks are arranged at outer ends of the ejector rods, and a spring is arranged on an ejector rod section between each stop block and the adjacent support; a template is arranged above a gap between the two ejecting blocks, a cross hole is formed in the template, and the upper edge of the template is connected with a first push-and-pull mechanism; inserting plates and second push-and-pull mechanisms are arranged on two sides of the template; during working, bumps which are bulged inwards are punched on steel plates on two sides of a bottleneck part of the profile steel by the bulges on the adjacent surfaces of the two ejecting blocks and the cross hole by the virtue of the two inserting plates and the second push-and-pull mechanisms. With the adoption of the bump punching mechanism for the solar panel bracket, the mounting efficiency of a solar panel and solar receiving efficiency can be improved.

The invention discloses a protection device for a network quality and safety tester. The device comprises a protective frame, a cushion and a handle, through holes are formed in the two ends of the surface of one side of the protective frame; a bracket is mounted in the center of the surface of the same side of the through hole; clamping grooves are formed in the two ends, perpendicular to the side face of the through hole, of the protection frame, the buffering cushion is connected and fixed in the clamping grooves through clamping plates, the interior of the support is connected with a rotating frame in a penetrating mode through a bolt rod, a first spring is connected to the bolt rod, and a first knob is connected to the end, close to the first spring, of the bolt rod. The protection device for the network quality and safety tester is provided with the bolt bar; by unscrewing the first knob on the bolt rod, one end of the bolt rod is loosened to extrude the rotating frame, then therotating frame is rotated to a certain angle according to needs, and then the first knob is screwed down to enable the bolt rod to clamp and fix the rotating frame, so that the angle of the device isconveniently adjusted.

The invention discloses a detection device for precise hardware production, and belongs to the technical field of hardware detection. The detection device for precision hardware production comprises a mounting box and further comprises a detection assembly arranged on the mounting box. a dust removal assembly arranged on the mounting box; a mounting frame connected into the mounting box in a sliding manner; and a transportation assembly arranged on the mounting frame. According to the invention, the two sets of mounting frames are made to move close to each other or move away from each other at the same time, so that the distance between the two conveying belts can be adjusted conveniently, plates of different widths and trays containing parts can be conveyed conveniently, and the initial position between the two sets of clamping rods can be adjusted. Therefore, compression resistance testing can be conveniently carried out on the plates with different lengths, the toughness and the recovery performance of the plates can be detected by comparing the pictures of the plates before and after being pressed, and the detection effect on hardware workpieces is improved.

The invention discloses a computer display screen connecting mechanism. The computer display screen connecting mechanism comprises a display screen; a guide groove is formed in the inner side of the display screen; the side part of the guide groove is connected with a guide rail; a through hole is formed in the outer side of the guide groove; the lower part of the guide groove is connected with aconnecting block; the side part of the connecting block is connected with a connecting rope; one end of the connecting rope is connected with a pin; the lower part of the connecting block is connectedwith a clamping ring; the clamping ring is rotationally connected with a damping rotating shaft; a support rod is arranged at the lower part of the damping rotating shaft; and a base is arranged at the lower part of the support rod. The guide groove is formed in the display screen, and the connecting block is arranged at the lower part of the guide groove, so that the height adjustment of the display screen is realized; and the display screen is fixed through the pin, so that the angle adjustment of the display screen is realized through the clamping ring and the damping rotating shaft, the height and angle adjustment of the display screen is conveniently and quickly realized, the adjustment demands of users on the display screen are met, and the provision of comfortable office and entertainment interfaces is facilitated.

The invention discloses a clamping mechanical arm for a 3D printer nozzle, which comprises a printer body. The printer body is connected with a mechanical arm structure through a rotating box. The topend of the mechanical arm structure is connected with a clamp. Clamping plates are connected to the two sides of the front end of the clamp. The inner sides of the two groups of clamping plates are connected with silica gel plates. A nozzle is clamped between the silica gel plates. A fifth stepping motor and a connecting shaft box are installed at one end of the printer body, the fifth stepping motor is in engaged connection with a second bevel gear through a first bevel gear, the second bevel gear is connected to a screw rod, a first sliding block is arranged at the bottom of the rotating box, and the first sliding block is in threaded connection to the screw rod. The mechanical arm is adopted for fixing and clamping the nozzle, the printing process is achieved, the motor is arranged formoving and adjusting the mechanical arm system, the mechanical arm can conduct all-around printing operation, the adjusting clamp is arranged, the silica gel plate and the spring are arranged on theclamp, and the nozzle is prevented from being damaged by clamping.

The invention relates to a deep foundation pit support construction technology, and relates to the technical field of engineering facility construction. A single row of piles is arranged on the inside of the deep foundation pit, and the single row of piles is evenly distributed along the extension direction of the side wall of the deep foundation pit; At a position of 5 meters, the bottom of the fixed pile is lower than the preset lowest point of the deep foundation pit; S300: A horizontal steel frame is installed between the fixed pile and the single row of piles, and the two ends of the horizontal steel frame are connected to the fixed pile and the single row of piles respectively. The pile connection, the length direction of the horizontal steel frame is perpendicular to the side wall of the deep foundation pit. The invention has the effect of improving the verticality of the side wall of the deep foundation pit under the condition of reducing the occupation of the space in the deep foundation pit.

The invention discloses a small photovoltaic power generation device that automatically follows sunlight, which comprises a base, a first extension tube and a second extension tube, the diameter of the base decreases from bottom to top, and a bottom case is installed on the bottom of the base, and the bottom case The central axis of the base and the central axis of the base are on the same vertical line. The overall structure of the device is compact, in the form of a lamppost structure, with a small footprint and is suitable for various occasions. There are eight blade-type photovoltaic panels on the top. The umbrella-shaped structure is formed as a whole, which improves the overall aesthetics of the device. At the same time, the battery is buried under the ground with the bottom case, which can effectively prevent the sun from causing the battery to heat up too quickly, and the ground wrapping outside the bottom case can improve the overall heat dissipation efficiency and improve Use security.

The invention relates to a universal device of a subway interconnecting passage MJS reinforcing device power head. The universal device comprises a movable frame, a power head, a fixed frame, and a movable frame fixed locking device. The universal device is characterized in that the power head is arranged on the movable frame, the movable frame is rotatably connected with the fixed frame through a bearing and a bearing pedestal 3, so that the power head can be adjusted in any angle in the range of -30 DEG to 70 DEG. The movable frame fixed locking device is arranged between the fixed frame and the movable frame, and the movable frame fixed locking device is used for locking after angle adjustment of the power head 2. Through adding a universal structure frame on the rear of the power head, the power head can be adjusted in any angle in the range of -30 DEG to 70 DEG. After angle adjustment is completed, the power head is locked through a one-way cylinder added on a slideway and a strut on the rear end of a support. Aimed at part of relatively large tunnels, a lifting mechanism can be assembled on the lower part of the structure frame, and horizontal position of the device can be adjusted.