5results about How to "Good locking effect" patented technology

A multifunctional composite inspection tool for automobile interior door panels and a method for using the same belong to the field of detection technology, and overcome the problem that the prior art cannot realize the three-coordinate full-size front and back detection function of the automobile interior injection molded door panel body and the door panel assembly. The invention is characterized in that a door panel iron door sheet metal profiling block, a positioning and locking mechanism, a door panel substrate main positioning block, a Y-direction limit mechanism and a Z-direction limit mechanism are installed in front of the inspection tool bottom plate, and a door panel assembly back profiling block, a back positioning and clamping spring sheet, a door panel assembly back handle profiling block and a door panel substrate back positioning block are installed behind the inspection tool bottom plate. The beneficial effect is that only one set of inspection tools needs to be developed, and the three-coordinate full-size front and back full-size detection functions of the injection molded door panel body and the door panel assembly and the imitation car door sheet metal matching gap measurement function are realized through the disassembly, assembly and switching of different mechanisms, thereby reducing the inspection tool development cost, realizing rapid installation and rapid disassembly, and improving the detection accuracy and the efficiency of the detection process.

A roller reamer for oilfield drilling, relating to the field of oilfield drilling tools, includes a connecting body, a roller shaft, a roller, a shaft seat, a connecting bolt, a connecting disc, and a locking sleeve. Two shaft seats are respectively connected and installed in slots opened on the connecting body using connecting bolts. The roller shaft is connected between the shaft seats, and the roller is fitted on the roller shaft. The head of the connecting bolt has a transverse groove. The connecting disc and the locking sleeve are sequentially installed in the bolt connection hole. An upper key pin and a lower key pin are respectively provided on the upper and lower end faces of the connecting disc. The lower key pin corresponds to and fits into the transverse groove. The inner circumferential surface of the locking sleeve has a reverse thread, and the bottom end has a limiting groove that corresponds to and fits into the upper key pin. A strip-shaped sawtooth ridge is provided in the bolt connection hole. The locking sleeve is interference-fitted and impact-embedded into the bolt connection hole, establishing a sawtooth meshing fit with the shaft seat. This can limit and constrain the connecting bolt in the axial direction and also rotate and constrain the connecting bolt in the circumferential direction, strengthening the locking effect on the connecting bolt and improving the locking effect.

The utility model belongs to the field of headrests, and provides a vehicle seat headrest which is characterized in that a guiding part parallel to the rotating direction of a front support is formed on a traction piece, and at least two locking grooves are distributed in the guiding part; the locking pin is connected to the front support and movably clamped in the locking groove so that the front support can be limited to the folding position or the unfolding position. Compared with the prior art, the utility model has the advantages that the locking pin is matched with the locking groove on the traction piece, so that the front support is firmly locked after being adjusted to a required position (whether folded or unfolded), the whole structure is simple, the whole thickness of the headrest is thinner, the space in a vehicle is saved, and the use is convenient. Compared with a hard locking structure of a ratchet wheel and a pawl, according to the headrest structure in the scheme, the position can be adjusted only by applying proper pressure to the front support by a user, the test requirement of a headrest whiplash test is met, and the use safety and stability are improved to a great extent.

The utility model provides a moving frame for a fan, and belongs to the technical field of fans. The device comprises a horizontally-arranged base frame, a plurality of universal wheels are arranged at the bottom of the base frame, two vertical frame sets which are the same in structure and oppositely arranged on the base frame are arranged above the base frame, each vertical frame set comprises two parallel side rods longitudinally arranged on the base frame, and a mounting transverse plate is arranged between the tops of the two side rods; a fan is arranged between the two mounting transverse plates and comprises a cylindrical fan cover, the two sides of the fan cover are movably hinged to the mounting transverse plates on the two sides, arc-shaped sliding grooves are formed in the mounting transverse plates, locking pads corresponding to the sliding grooves are fixed to the side walls of the fan cover, locking screw rods are arranged in the sliding grooves, and the locking screw rods are connected with the fan cover. The outer end of the locking screw extends out of the sliding groove and is fixedly provided with a hand wheel, and the inner end of the locking screw is in threaded connection with the locking pad. The device has the advantages of convenience in movement, convenience in angle adjustment and the like.

The invention discloses a mutually fixable telescopic guide rod and a construction method thereof, the mutually fixable telescopic guide rod comprises: an inner rod, one end of which is provided with an outer clamping part; the outer rod is arranged on the periphery of the inner rod in a sleeving manner, and an inner clamping part clamped with the outer clamping part is arranged at the other end of the outer rod; two fixing parts which are distributed up and down are further arranged on the periphery of the inner rod, when the inner rod and the outer rod are in a complete stretching-out state, the inner clamping part and the outer clamping part are attached, the low-position fixing part is exposed, and the fixing device is detachably connected with the low-position fixing part; and when the inner rod and the outer rod are in a complete contraction state, only the high-position fixing part is exposed, and the fixing device is detachably connected with the high-position fixing part. By means of the telescopic guide rod capable of being mutually fixed, the locking and fixing effect of the telescopic guide rod can be effectively improved, and the drilling effect of the telescopic guide rod can be improved.