10results about How to "Exempt from replacement" patented technology

The application relates to the technical field of tunnel lighting, in particular to a tunnel lighting device utilizing sunlight refraction, which comprises a turning pipe, an inner light guide pipe, an outer light guide pipe and the like. The turning pipe is a pipeline structure with a vertical bend and is used for changing the light transmission direction, the horizontal end of the turning pipe is connected with the inner light guide pipe, and the vertical end of the turning pipe is connected with the outer light guide pipe. The application does not need photoelectric conversion in the whole process, directly uses natural light for illumination, has no power consumption, no carbon emission and no battery replacement problem, and has low operation cost. A large-diameter light collecting cover is used to cooperate with a large-pipe-diameter installation pipe to improve the initial light collecting area. The light is gathered into a collimated light beam through a first focusing lens and a collimating lens, so that the divergence loss is reduced.

The bending equipment for metal material manufacturing comprises a workbench, supporting columns are fixedly mounted at the four corners of the bottom of the workbench correspondingly, fixing columns are fixedly connected between the four supporting columns correspondingly, dampers are arranged at the bottoms of the four supporting columns correspondingly, a first mounting groove is formed in one side of the top of the workbench, and a second mounting groove is formed in the other side of the top of the workbench; a clamping assembly is arranged in an inner cavity of the first mounting groove, a bending assembly is arranged in an inner cavity of the workbench, a second limiting groove is formed in the top of the workbench, and a plurality of scale marks are arranged on the surface of the second limiting groove. Through the arrangement of the bending assembly, when the device is used for bending a metal pipe, the bending angle can be adjusted in real time according to the design requirements of different workpieces, equipment hardware does not need to be replaced or transformed, the production cost is reduced, production diversity is met, and meanwhile the overall production efficiency is improved.

The present application belongs to the technical field of tooling fixture, and discloses a stop block, a stop block preparation method and a fixture. The stop block comprises a base piece, a protection piece and a connecting assembly. The base piece is arranged on a base. The protection piece comprises a mounting cavity, and the base piece can be embedded in the mounting cavity. The protection piece is used for abutting against a product. The base piece and / or the protection piece are detachably connected with the base through the connecting assembly. The base piece is embedded in the mounting cavity of the protection piece. Compared with a 0.1mm-thick Teflon tape or flannelette, the protection piece can provide better buffering performance. Even if the product contacts the stop block with great force or angular deviation, the damage to the product can be effectively reduced. The protection piece can withstand frequent product contact and friction, has good wear resistance and is not easy to break. The protection piece can be used for a long time without maintenance and replacement, thereby reducing the working strength of workers, reducing material costs, and having a positive impact on production efficiency and economic benefits.

The utility model relates to a profiling LED bulb for an automobile, which comprises a lampshade, a lamp holder, a circuit board and a light-emitting component, the lampshade and the lamp holder are of a profiling structure of a C5W halogen bulb, the lampshade is of a split structure and comprises two shells with the same structure, semicircular connectors are arranged at two ends of each shell, the lamp holder is sleeved outside the connectors of the two shells, and the circuit board is connected with the light-emitting component. The circuit board is installed in the lampshade and comprises a body, end heads are arranged at the two ends of the body, a receding hole is formed in the surface of the body, and the light-emitting assembly is arranged in the receding hole. The LED signal lamp solves the technical problems that when a halogen bulb is replaced by an LED signal lamp, adaptability is poor, light distribution is uneven, and the light pattern effect is affected.

This utility model relates to the field of bending equipment technology, specifically disclosing a sheet metal bending device, including a table mechanism. A bending pushing mechanism is arranged in the middle of the table mechanism, and a bending shaping mechanism is arranged on one side of the table mechanism. The table mechanism includes a base, an operating table, and a sheet metal body. This solution uses cylinder one to adjust the height of the operating table to adapt to sheet metal bodies of different thicknesses, ensuring a tight fit with the bending mold. Cylinder two drives a limiting plate, and cylinder three controls a pressure plate, which work together to achieve precise positioning and clamping of the sheet metal before bending, effectively preventing offset or slippage during the bending process. The guide rail slide and cylinder four in the bending pushing mechanism can adjust the horizontal and vertical positions of the pushing bending plate, avoiding uneven local force during bending and ensuring the uniformity of the bent edge. The bending conveying limiting block is quickly limited by cylinder five, further ensuring the accuracy of the bending position, thereby significantly improving bending precision and finished product consistency.

The utility model discloses a die-cutting knife line separating device, and relates to the technical field of mechanical engineering. Comprising a machine shell and further comprises a fifth lead screw, the outer wall of the fifth lead screw is rotationally connected with the inner wall of the machine shell, the outer wall of the fifth lead screw is in threaded connection with third cutter adjusting plates, and the third cutter adjusting plates are arranged along the central axis of the fifth lead screw in a linear array mode. Compared with a traditional integral adjusting device, an operator can regulate and control the die-cutting knife die and the line pressing part according to actual requirements, mutual influence between the die-cutting knife die and the line pressing part does not need to be considered, tedious operation and possible error accumulation caused by integral adjustment are avoided, and the purpose of the die-cutting knife line separating device is achieved.

The utility model relates to a kind of oblique car center frame rotary top head in oblique bed center frame technical field, comprising: intermediate top head, axial sliding connection in center frame frame body;The intermediate top head head end is equipped with rotary top wheel, tail end is isosceles trapezoidal structure and is equipped with the driving equipment that drives its axial movement;Side top head, it has two, and respectively symmetrically distributed in the upper and lower sides of the intermediate top head;The side top head rotation is connected in center frame frame body, its head end is equipped with rotary top wheel, tail end is equipped with follower wheel, to facilitate under the slope effect of the isosceles trapezoidal structure Outward movement;The utility model is through the slope cooperation of isosceles trapezoidal structure and follower wheel in intermediate top head tail end, by driving equipment drives the axial movement of intermediate top head, while, two side top heads also act, so that three rotary top wheels clamp workpiece, for the workpiece of same diameter, it can improve clamping efficiency, also can improve the consistency of clamping force.

The utility model relates to the field of bar production discloses a kind of bar weighing and removing device, including support seat, conveyer a, weighing platform, conveyer b, falling mechanism and display controller, the conveyer a, weighing platform, conveyer b are sequentially fixedly installed on the upper portion of support seat from left to right, the falling mechanism is fixedly connected in support seat right side, the lower portion of support seat is provided with adjusting assembly;The adjusting assembly includes fixedly installed in the deceleration motor of the lower side inner wall of support seat. In the utility model, adjusting assembly is driven bidirectional screw rod rotation by deceleration motor, drives threaded sleeve to move along screw rod, then it is slid by the hinged link of staggered arrangement to push moving piece, finally realize the automatic adjustment of the spacing of guide piece, without manual disassembly or replacement component, different diameter bar can be quickly adapted, and without shutdown, substantially shorten the time of change type, improve the adaptability of equipment to multi-specification production.

The utility model provides a kind of for high-strength metal sample reciprocating torsion split type clamp, including oppositely arranged first clamp and second clamp, first clamp has the first side surface towards second clamp, second clamp has the second side surface towards first clamp, first clamping plate is detachably assembled on first side surface, second clamping plate is detachably assembled on second side surface, the side of first clamping plate towards second clamping plate is first clamping surface, the side of second clamping plate towards first clamping plate is second clamping surface, first clamping surface and second clamping surface can form the clamping of high-strength metal sample, the vickers hardness of first clamping plate and second clamping plate is higher than the vickers hardness of first clamp and second clamp.The utility model can effectively improve the clamping stability of sample, avoid sample skidding phenomenon in reciprocating torsion process, and service life is longer, reduces test cost, maintenance, replacement is more convenient.