41results about How to "Avoid falling easily" patented technology

A damping opening and closing structure easy to mount and demount and applicable to a furniture folding door comprises a demountable opening and closing device, sliding grooves and at least two furniture door bodies. The demountable opening and closing device comprises a support element and rotating wheels arranged on a movable element. The at least two furniture door bodies are the first furniture door body and the second furniture door body correspondingly. The first furniture door body and/or the second furniture door body are/is connected with the support element in a matched mode, and thefirst furniture door body and the second furniture door body are hinged to each other and are opened or closed in the sliding grooves in a linked sliding mode through the rotating wheels of the support element when being hinged to each other. The damping opening and closing structure further comprises at least one hinge, and the hinges are connected with the first furniture door body and/or the second furniture door body in a matched mode and provided with dampers, and the first furniture door body and the second furniture door body are opened or closed in the sliding grooves in a damping mode through the dampers of the hinges when being hinged to each other. Through structural improvement, the damping opening and closing structure has high practicability.

The invention discloses a wheel type range finder which comprises a range finder body. The range finder body comprises a wheel carrier and a measurement wheel. The wheel carrier is connected with a guide wheel through a guide frame. A guide groove matched with a guide rail is formed in the wheel face of the guide wheel. The guide wheel is installed in front of the measurement wheel. The guide wheel with a positioning groove is installed on the wheel type range finder and conducts guiding in front of the measurement wheel, the guiding performance is good, it is avoided that the measurement wheel on the rail is likely to fall off the face of the rail, and the measurement precision is greatly improved. The range finder is placed on the face of the rail and can be pushed forwards at a high or low speed, more time and labor are saved for operators, the measurement efficiency is improved, the problems that in the prior art, measurement is not precise, operation is not convenient and time and labor are wasted are effectively solved, and the wheel type range finder has the advantages of being simple in structure, convenient to operate, use, assemble, disassemble and maintain, and low in price.

The invention discloses a mounting and dismounting device used for a pipe fitting material, and relates to the technical field of pipe fitting transporting. The mounting and dismounting device comprises a supporting mechanism. A mounting and dismounting mechanism is arranged on the inner side of the supporting mechanism and comprises a lifting mechanism and a pipe clamping mechanism arranged on the bottom side of the lifting mechanism. The supporting mechanism comprises a supporting frame, a hydraulic cylinder is fixedly mounted at the upper end of the supporting frame, a limiting guide rail is fixedly mounted on the bottom side of the supporting frame, and a limiting sliding groove is formed on the side face of the limiting guide rail. The lifting mechanism comprises a fixed seat. A transmission rod is driven by an electric push rod to move upwards, and therefore two arc clamping blocks are driven to be turned over and drawn in, the two arc clamping blocks cooperate to rapidly clamp apipe fitting, the pipe fitting can be moved into a transport compartment stably and gently, the pipe fitting is prevented from being prone to falling off in the mounting and dismounting process, andthe traditional manual binding and lifting manner is replaced to achieve mounting and dismounting; and the manual labor amount is reduced, the pipe fitting can be rapidly mounted and dismounted conveniently, and the mounting and dismounting work efficiency of the pipe fitting can be improved easily.

The invention relates to a speaker dust cap glue taking device, and belongs to the field of automation equipment. The speaker dust cap glue taking device comprises a glue taking lower support, a glue taking upper support and a glue taking inner support, wherein the upper end of the glue taking lower support is connected with the glue taking upper support through a screw, and the glue taking upper support is connected with the glue taking inner support. A glue box is placed below the glue taking upper support, the glue taking inner support is placed inside the glue box, and the glue taking lower support is pushed by a piston rod of a glue taking air cylinder to move vertically. The speaker dust cap glue taking device is simple, compact and reasonable in structure, and can achieve automation glue taking. The whole action process is high in mechanization degree, time is saved, labor is saved, the problem that the dust cap is easy to fall off and is not arranged in place because of manual operation is resolved, product rework rate and enterprise production cost are reduced, and production efficiency is greatly improved.

The invention discloses a kind of combined-type yellow platinum ringlike jewelry, processing equipment and a processing method of the processing equipment. The ringlike jewelry comprises a surface layer ringlike structure, a middle layer ringlike structure connected with the inner ring surface of the surface layer ringlike structure and an inner layer ringlike structure connected with the inner ring surface of the middle layer ringlike structure; the surface layer ringlike structure is provided with a display groove used for displaying the middle layer ringlike structure, and the display groove is in a regular curve shape; the two ends of the surface layer ringlike structure, the two ends of the middle layer ringlike structure and the two ends of the inner layer ringlike structure are flush, which is used for displaying different colors of the surface layer ringlike structure, the middle layer ringlike structure and the inner layer ringlike structure, the surface layer ringlike structure and the inner layer ringlike structure are made from a platinum material, and the middle layer ringlike structure is made from a gold material. The surface layer ringlike structure is provided withthe display groove capable of displaying the color of yellow platinum, and the colors are displayed mutually through a yellow platinum combination structure. The problems are solved that the gold part of the combined-type yellow platinum jewelry easily sheds and is broken off and abraded easily.

The invention provides a cantilever scaffold board comprising a horizontal board body and a reinforcement tightening rod. The edge of one side of the horizontal board body is provided with more than two clamping grooves perpendicular to the edge; the reinforcement tightening rod is provided with a vertical angle iron and a horizontal angle iron which are connected perpendicularly; the vertical angle iron comprises a first plane and second plane of the vertical angle iron, the horizontal angle iron comprises a first plane and second plane of the horizontal angle iron, the first plane of the vertical angle iron is connected to the clamping grooves in a clamped manner, the second plane of the vertical angle iron is provided with a connecting hole used for connecting to a scaffold, and the first plane of the horizontal angle iron is horizontal basically and is connected to the horizontal board body. The cantilever scaffold board is mainly applied to construction, and the problems that when the scaffold is used during operation, the scaffold board is difficult to disassemble and inconvenient to install, the placed tools and materials are prone to falling, and a construction worker is prone to missing steps are solved.

The optical scanner includes carrier, casing, driving unit and transmission unit. The carrier has one buckle and is provided with one optical system. The casing has one guide rail formed integrallyon the outside of the casing and with one buckled part for combination with the carrier. The transmission unit is connected to the driving unit and the carrier, so that the driving unit drives the transmission unit and thus the carrier and the carrier can slide along the guide rail via the buckled part and the buckle.

The invention relates to a fabricated building overhung balcony position external envelope structure, comprising a vertical prefabricated shear wall; the prefabricated shear wall is provided with a balcony floor slab overhung at the outer side face of the prefabricated shear wall; the outer side face of the prefabricated shear wall is connected with two external protective frames; each external protective frame comprises a horizontal pedal, and the upper surface of each pedal is connected with a vertical forward guard plate; the forward guard plates are flushed with the side faces, far away from the prefabricated shear wall, of the pedals; the two external protective frames are respectively positioned at the two ends of the balcony floor slab; the pedals are flushed with the balcony floorslab; extending protective plates, used for protecting the corresponding ends of the balcony floor slab, extend from the ends, close to the balcony floor slab, of the forward guard plates; a verticalouter protective plate is connected between the two extending protective plates in a detachable way by means of a connecting piece; the outer protective plate is flushed with the overhung side face ofthe balcony floor slab and is used for protecting the outer side of the balcony floor slab. The overhung balcony envelope structure is simpler; the external protective frames and the outer protectiveplate are detachable, so that the construction is facilitated while the safety is guaranteed.

The invention discloses an earphone. The earphone comprises an earphone main body into which a loudspeaker is embedded, and an ear cap, wherein the earphone main body is provided with a hollow extension portion which is communicated with the inside of the earphone main body; the hollow extension portion is sleeved with the ear cap; meanwhile the ear cap is further provided with a small hole which is communicated with the inside of the hollow extension portion; a voice diaphragm of the loudspeaker faces a channel which is communicated with the small hole of the hollow extension portion; the peripheral wall of the hollow extension portion is provided with more than one exhaust groove. The peripheral wall of the hollow extension portion is provided with the exhaust groove, and air in the small hole of the ear cap can be exhausted from the exhaust groove when the small hole of the ear cap is blocked and the ear cap is connected to the hollow extension portion in a sleeved way due to error operation of a user, so that deformation of the voice diaphragm of the loudspeaker due to extrusion of the air in the small hole into the earphone main body is effectively avoided, and the quality of the earphone is ensured.

The invention relates to the technical field of building equipment, and discloses an assembly type building prefabricated part hoisting device which comprises a shell. A pneumatic control device is fixedly connected to the interior of the shell, a first shell is fixedly connected to the interior of the shell, and a first piston is slidably connected to the interior of the first shell; and the interior of the first piston is in threaded connection with a first screw rod, the bottom end of the first screw rod is fixedly connected with a fixing block, and the middle of the first screw rod is rotationally connected with a first connecting rod. According to the assembly type building prefabricated part hoisting device, through connection of the shell and the first connecting rod, the problem that a hoisting device in the prior art does not fix and pre-tighten a hoisting rod is solved, the hoisting rod is wedged tightly through a wedge-shaped structure, the situation that the hoisting rod is prone to falling off in the transportation process is avoided, and practicability and safety are improved; and a vacuum device is used for assisting, so that the wind load influence is reduced, the wind resistance strength is improved in the moving process, and large-amplitude shaking is avoided.