8 results about "Limited angle" patented technology

The utility model discloses a back cushion angle adjusting structure and a body-building stool, and the back cushion angle adjusting structure comprises a bottom frame; the seat cushion is used for sitting on the buttocks, and the seat cushion is slidably arranged on the bottom frame in the linear direction; the back cushion is used for supporting the back, one end of the back cushion is rotationally connected with the seat cushion, and the other end is connected with the underframe through a connecting rod mechanism; when the seat cushion slides, the back cushion rotates around the rotating axis connected with the seat cushion so as to adjust the inclination angle of the back cushion and the seat cushion in a stepless mode. The back cushion and the seat cushion are designed to be in a linkage adjustment mode, the back cushion and the bottom frame are connected through the connecting rod mechanism, when the seat cushion slides in the linear direction of the bottom frame, the back cushion can conduct stepless angle adjustment around the rotating axis connected with the seat cushion, and the problems that in an existing fitness stool, the adjustment angle of the back cushion is limited, and adjustment is inconvenient are solved; in the linkage application between the back cushion and the seat cushion, a user can accurately adjust the angle of the back cushion according to own requirements, and higher individuation and flexibility are provided.

To prevent damage to the workpiece or tool. [Solution] A robot that operates to perform work on a workpiece using a tool, and restricts such operation only when taught an operation that could damage the workpiece or the tool. The robot polishes or grinds the workpiece by rotating the tool and bringing the workpiece into contact with the tool. The direction of rotation of the tool is opposite to the direction from the center of the workpiece toward the edge. The angle of the workpiece relative to the tool is restricted to a limited angle range in which there is no possibility of damage to the workpiece or the tool due to contact between the workpiece and the tool. Since the operation is restricted only when taught an operation that could damage the workpiece or the tool, damage to the workpiece or the tool can be prevented.

This utility model provides a positioning device for saw blade tooth grinding, belonging to the technical field of saw blade processing equipment, including a saw blade and a positioning device. The positioning device consists of a base, a fixed block, a movable block, and multiple inclined positioning grooves. The positioning groove on the upper surface of the base is inclined at 60° to the front surface, adapting to the inclined surface of the bottom end of the saw blade, and cooperating with a multi-tooth grinding wheel to achieve inclined tooth profile grinding, improving cutting efficiency. The fixed block and the movable block are engaged with the saw blade head and connecting part through notches, combined with a 10° inclined surface clamping design to prevent the saw blade from shifting or tilting in the horizontal and vertical directions during grinding, ensuring positioning stability. The clearance groove is precisely matched with the bottom end of the saw blade, distributing the force and reducing processing errors. The movable block is detachable, facilitating saw blade loading and unloading, and making operation convenient. The grinding wheel shaft can rotate and swing up and down to compensate for the angle deviation of the grinding surface, achieving efficient one-time forming. This utility model solves the problems of unstable positioning, limited angle adjustment, and low efficiency of existing devices.

A positioning tool and a scribing method for the reverse side of a steel plate belong to the technical field of ship outfitting. The tool combines an elastic chuck with a hinged assembly with a micro high-precision bearing seat and a cylindrical pin shaft, so that the clamping mouth can smoothly swing within a limited angle in the normal direction of the plate. It can not only adapt to the thickness and surface state of the steel plate to achieve precise positioning with manual fine adjustment and stable positioning, but also realize quick and reliable fixing of the front and back sides through the detachable magnetic sheet with a boss. The positioning gap on the front side is convenient for aligning the reference line, and the positioning gap on the back side can be directly used as the scribing reference. The tool can obtain the accurate position of the back side through mechanical transmission after one-time alignment on the front side, and is suitable for various regular steel plates through the design of a large opening degree. The tool has compact overall structure, accurate positioning and simple operation, and greatly improves the efficiency and precision of scribing the reverse side of the steel plate.

A mechanism for linkage between the open state of a device containment apparatus and an electrical switch, relating to the technical field of electrical and electromechanical technology, comprising: a switch shaft (1-1), which is rotatably arranged on a side wall of a box, case, cabinet or enclosure; a lock hook (1-2), which is arranged inside the box, case, cabinet or enclosure, one end thereof being fixed at an inner end of the switch shaft (1-1); a hook head (1-3), which is mounted at the other end of the lock hook (1-2) via a hook head rotating shaft (1-6), the hook head (1-3) rotating around the hook head rotating shaft (1-6) through a limited angle; a spring (1-4), which is mounted between the lock hook (1-2) and the hook head (1-3); a lock pin (2-1), which is fixed on the inner side of a door or cover of the box, case, cabinet or enclosure, the rotation axis thereof being parallel or perpendicular to that of the hook head (1-3); and a switch block (1-10), which is fixed on the lock hook (1-2), controlling an electrical switch (1-5) to turn on or off during rotation of the lock hook (1-2). When the switch shaft (1-1) is rotated to a locked position, since the hook head (1-3) is rotatable, the hook head (1-3) does not obstruct closing of the door or cover, thereby preventing the problem of component damage due to improper use, and preventing the problem of linkage failure between the open state of the box, case, cabinet or enclosure and the electrical switch.

This utility model relates to a material distribution plate device and a material distribution system. The material distribution plate device includes a material distribution unit, two movable units, two locking units, and a control unit. Its advantages lie in that the control unit controls the movement of the movable units, thereby driving the material distribution unit to rotate and adjust its angle. The locking units are used to lock the material distribution unit in place, thus securing its position. Operation is simple and easy, the angle adjustment of the material distribution unit is precise and efficient, and it allows for flexible adjustment of multiple angles, solving the problems of low efficiency and limited angle adjustment of the material distribution plate.

The utility model discloses a modularized measuring platform, relates to the technical field of prism supports, and solves the technical problems that the existing prism support can only move in the vertical direction after being fixed, the measuring scene is limited, and the measuring precision is difficult to guarantee. A connecting block which slides in a certain area is arranged in the prism support, rotating unfolding rods are arranged on the two sides of the connecting block, then outward-unfolding structures exist on the two sides of the prism support, the unfolding rods can be rotated to be outwards unfolded when the prism support is shielded by an object, and extension rods for fixing the position of the prism are arranged in the unfolding rods. The prism support is provided with a structure capable of extending outwards and fixing the prism, the prism support can be suitable for various occasions during measurement, a plurality of structures for limiting angles are arranged between the extending rod and the connecting block, and the end, away from the prism support, of the extension rod can be adjusted to the proper height and position according to needs during use. Therefore, the measurement is not limited by the measurement space to a certain extent.

1. Name of the product in this design: Disc Valve Disc. 2. Purpose of this design: It is a butterfly plate of a butterfly valve. By rotating the butterfly plate at a limited angle, the butterfly valve can be controlled to open or close or to regulate its operation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.