132results about How to "Not easy to skew" patented technology

The invention relates to a rigid train front end anticreeper which comprises a draw gear box and an anti-creep device which are arranged on the back of an end beam. A through hole for the anti-creep device to pass through is formed on the end beam. The anti-creep device comprises anti-creep teeth, a supporting base and a base, wherein the anti-creep teeth, the supporting base and the base are sequentially connected. The rear portion of the base of the anti-creep device penetrates through the through hole and then is connected on the draw gear box, and is fixed with the end beam through fasteners. Because the anticreeper is of a rigid structure and free of a bumper, and the base and the draw gear box are connected in a welding mode, the anticreeper is strong in rigidity and can not easily deflect under impact. Furthermore, the anti-creep device is connected with the end beam through bolts, the anticrepper is easy to replace in the real use process.

The invention relates to the technical field of piston ring installation, and discloses a high efficient hand-pressing type piston ring rapid installation device. The high efficient hand-pressing typepiston ring rapid installation device comprises a guide tank and an extrusion rod, wherein the guide tank and the extrusion rod sleeve a piston. The extrusion rod is located on the side, away from the piston, of the guide tank, and a handle is fixedly connected to the end, away from the guide tank, of the extrusion rod. The tank bottom of the guide tank is arranged in the shape of a circular truncated cone, and a connecting rod is fixedly connected to the tank bottom outside the guide tank. The connecting rod and the extrusion rod are connected through a clamping structure, and the clamping structure includes a connecting groove. The connecting groove is formed in the end, close to the guide tank, of the extrusion rod, sliding holes are symmetrically formed in the opposite groove walls ofthe connecting groove, and the end, away from the guide tank, of the connecting rod penetrates through a groove opening of the connecting groove and extends into the connecting groove. According to the high efficient hand-pressing type piston ring rapid installation device, clamping blocks are matched with the sliding holes for use, the connecting rod and the extrusion rod are disassembled conveniently, a piston ring sleeves conveniently, and the installation efficiency is improved.

A wide-range horizontal mini-tiller for avoiding middle tillage omission by adopting a guide wheel matched lift-throwing type plow with a blade protecting disc adopts combination of a guide wheel (p9) and the lift-throwing type plow (p104) and serves as a novel tool applying front guide wheel matched plow to avoid middle tillage omission. Various safety measures are provided. By using a safe follow-up upper protective plate, a safe follow-up rear protective plate and left and right safe protective frames, the mud sticking amount is decreased, entangled grass is cut off, the work efficiency is improved, the mini-tiller is safe and up to the standard, and observation is facilitated. A safe resistance fork wheel does not easily incline and is easy to guide, movable protective plates are provided with detachable plates, and the transportation cost can be reduced. The mini-tiller is proved with a reverse gear and facilitates usage of an operator on the cultivated land edge, a handle is provided with an anti-misoperation device, the handle height is adjustable at high level, middle level and low level, a horizontal angle of the handle is adjustable at five levels, the height of a mud blocking rod is adjustable in vertical four levels, and rotary blades have overlapping phase difference and end teeth and facilitates sharpening of sawtooth blades. The safety is further improved by using the outer protective disc. In addition, due to the fact that the outer protective disc is a function wave protective disc and bounces when being pressed to deform, the mini-tiller has the effects of wide-range vibration reduction, vitality enhancing and multiple-point balancing. The guide wheel matched lift-throwing type plow provided with the blade protecting disc has the effect of avoiding the tillage omission.

The invention relates to a mine tunnel water gushing-out advance rescue real-time embedded control device, and belongs to the technical field of real-time embedded detection control. The device is composed of device front part, a device middle part and a device rear part. The device front part comprises a device front part spiral bit. The device middle part is composed of a rotary joint, a telescopic rod, a claw part spiral bit, a forward driving claw, an external sound source receiving device, a communication module, a circulating moving plate, an LED light source and a three-dimensional imaging device. The device rear part comprises a cable data wire I, a power supply line I, an air channel, a rescue goods bin and a sound transmit-receive device. The mine tunnel water gushing-out advance rescue real-time embedded control device is capable of entering a rescue point to contact trapped persons in time after a water gushing-out accident of a mine tunnel and before a life channel is available, determining the trapped position and the surrounding environment, and providing bases and guidance for the next search and rescue decision; in addition, the device is internally provided with the rescue goods bin and the air channel, thereby providing the basic water source, food, drugs and fresh air to the trapped persons.

The invention provides a connector terminal, comprising a body and a projection portion. The body comprises a first contact portion, a first intermediate portion, and a first connecting portion connected with each other in sequence. The first contact portion is used to contact with a pair of connector terminals. The first connecting portion is used to connect with a circuit board. The projection portion is raised on the first intermediate portion along a normal direction of a contact surface of the first contact portion. The invention also provides a connector which includes a casing, a base and the above connector terminals, and a manufacturing method of the connector. Through arranging the projection portion on the first intermediate portion of the connector terminal, an operator can push the projection portion through a jig or by hands, so as to push the first contact portion into a first groove to complete assembly. If the jig is used to push the projection portion, certain force application can be maintained, so the connector terminal does not easily incline when being installed. In manual installation, the projection portion increases contact area between an operator finger and the connector terminal, so as to improve possibility that the connector terminal is correctely installed in the base.

The invention discloses a numerically controlled universal flange machine, and relates to the field of mechanical manufacture. The numerically controlled universal flange machine comprises a base (1), a motor (2), frames (3), a speed reducer (4), an upper roller (5) and a lower roller (6), wherein the upper roller (5) and the lower roller (6) are arranged between two frames (3); the speed reducer (4) is connected with the upper roller (5); and the motor (2) and the frames (3) are arranged on the base (1). The numerically controlled universal flange machine also comprises a mold (7) which is arranged outside the lower roller (6). The upper roller can move to prebend plates; the rolling speed is high; manual subsequent processing is not needed; and the working efficiency is improved. The mold is arranged on the lower roller; the lower roller can clamp the plates; poor conditions such as deflection, displacement and the like cannot occur in the rolling process; and the use is convenient.

The invention discloses an electric brush structure installed in a slide wire current collector and relates to the technical field of slide wires. The electric brush structure comprises a current collector shell and an electric brush; an electric brush fixing groove is formed in the current collector shell, a guide brush holder is fixed in the electric brush fixing groove, an opening groove is formed in one side of the guide brush holder, a constant force driving spring assembly is clamped in the opening groove, the constant force driving spring assembly comprises a constant force coil springand an L-shaped fixed support which are riveted together through rivets, the constant force coil spring is placed in a cavity of the guide brush holder, the electric brush is further arranged in the cavity of the guide brush holder in a sliding mode, the constant force coil spring contacts and abuts against the bottom surface of the electric brush, a guide sliding chute is formed in one side of the electric brush, and the guide sliding chute is in sliding fit with the head of a cylindrical end of the rivet. According to the electric brush structure in the invention, the electric brush can be well guided during telescopic motions, the electric brush is not prone to skewing and jamming, and the electric brush is not easy to wear; the constant force spring driving structure can provide balanced driving force, thereby facilitating stable and reliable power supply of the slide wire in the moving process.

The invention discloses a refrigerator. The refrigerator comprises a refrigerator body, a door body, a compressor and a water pan, wherein a compartment is defined in the refrigerator body; a compressor cabin is arranged on the lower part of the refrigerator body; the compressor is arranged in the compressor cabin; a first installation portion is arranged at the top of the compressor; the bottom surface of the water pan is fit with the top surface of the compressor; and a second installation portion is arranged at the bottom of the water pan and is fit with the first installation portion along the up-down direction so as to fix the water pan at the top of the compressor. According to the refrigerator disclosed by the embodiment of the invention, the water pan is fixed at the top of the compressor by fitting the first installation portion with the second installation portion along the up-down direction, the assembly method is simple and feasible and the first and second installation portions are convenient to butt, thus improving the assembly efficiency; and the water pan fit along the up-down direction can be designed to have larger area to be contacted with the top surface of the compressor and the contact area of the water pan and the compressor is enlarged, so the water pan is not easy to fall in the transport process.

The invention relates to the technical field of geological survey, in particular to survey equipment for geological survey. The survey equipment comprises an engine, a speed reducer arranged at the output end of the engine, a coupler arranged at the output end of the speed reducer, a rock core pipe arranged on a coupler and a drill bit in threaded connection with the rock core pipe. Guide pipes are fixedly arranged on the two sides of the engine, guide rods are arranged in the guide pipes in a sliding mode, positioning rings are arranged on the guide rods in a sliding mode, and locking assemblies used for fixing the positioning rings are arranged on the positioning rings. The survey equipment has the effect that a worker can conveniently control the feeding distance of the drill bit.

The invention provides a disposable oropharynx pathway oxygen feeding mask which comprises a mask main body and a skin pad jointed to a port of the mask main body in an encircling manner, wherein the outer side of the mask main body is convex; the inner side of the mask main body is concave; a connecting tube head with an oxygen feed port is connected to the outer side of the mask main body; an oropharynx parichnos is connected to the edge of the oxygen feed port on the inner side of the mask main body; and the through hole of the oropharynx parichnos is communicated with the oxygen feed port. The oxygen feeding mask has the benefits that the advantages of a mask are maintained while obstruction caused by a tongue can be avoided during oropharynx ventilation, so that limited airflow can enter the airway of a patient directly, the supply quantity of gas is enlarged, the lungs of the patient can be expanded better, the consumption of oxygen can be reduced, the availability of breathing emergency aid can be improved, the possibility of warping is low, required airflow can be fed to the airway of the patient accurately, and the tongue and the teeth of a twitching patient can be prevented from being damaged. The oxygen feeding mask further has the advantages that the operation is simple and fast; the use is convenient; and the cost is low.

The invention relates to an automatic labelling device for a packaging tape rewinder. The automatic labelling device for the packaging tape rewinder comprises a rack, wherein a lug is arranged on theinner side wall of the rack; a groove is formed in the upper surface of the lug along a conveying direction perpendicular to a packaging tape; a label is arranged in the groove in a penetrating way; acutting device is arranged on the rack; a first roll shaft and a second roll shaft are rotatably arranged between the rack; a third roll shaft is rotatably arranged right under the second roll shaft;a slide rail is arranged between the rack; a clamping assembly is slidably arranged on the slide rail; an electromotor is driven, so that a packaging tape to be winded passes through the third roll shaft and then penetrates through the first roll shaft and the second roll shaft so as to move; then the clamping assembly slides along the slide rail, so that the label is extracted from a gap betweena pressing block and the groove; then the cutting device is used for cutting off the label; and the third roll shaft is driven to rotate, so that the label attached onto the surface of the third rollshaft is abutted against the packaging tape to be winded and is adhered onto the packaging tape. The automatic labelling device for the packaging tape rewinder provided by the invention has the effects on preventing the label from being pasted slantways and preventing the label waste.

The electric vehicle battery mounting structure comprises a seat cask, a battery and a female seat, the battery is placed in the seat cask, the female seat comprises a connector integrally connected with a main wire harness and a fixing part arranged at the upper end of the connector, the lower end of the seat cask is concaved downwards to form a groove, a floating structure is arranged in the groove, and the floating structure is arranged in the groove. The fixing piece is fixed on the floating structure, and the connector is located below the floating structure; the lower end of the battery is provided with a male head inserted into the upper portion of the fixing piece. The floating structure drives the connector to synchronously float up and down along with the bumping of the battery, so that the connector is always in plugging connection with the male connector, and the phenomenon of loose connection or short circuit is reduced; meanwhile, the pulling of the main wire harness can be reduced.