57results about How to "Play the role of secondary protection" patented technology

The invention discloses a mechanical automatic stop device of a wire coil machine. The mechanical automatic stop device comprises a mounting plate, a length measuring unit, a pressing unit, an abnormity detecting unit and an emergency stop unit, wherein the back side surface of the mounting plate is fixedly connected with a motor; an output shaft of the motor penetrates through a through hole of the mounting plate; the front end of the output shaft of the motor is fixedly connected with a mounting shaft; the back end of the outer arc surface of the mounting shaft is fixedly connected with a brake disc; the middle part of the front side surface of the mounting plate is fixedly connected with a third fixed plate; the left side surface of the third fixed plate is fixedly connected with an electric push rod; the left end of the electric push rod is fixedly connected with a brake pad; the brake pad is of an arc structure; the inner arc surface of the brake pad is corresponding to the outerarc surface of the brake disc; and the back end of the front side surface of the mounting plate is fixedly connected with a support plate. The mechanical automatic stop device of the wire coil machineis novel in structure, needs no external equipment to measure the length of a cable, can automatically take corresponding stop measures according to different conditions, and is high in safety and convenient to operate.

The invention discloses a secondary protection device for a receiving plate of a ship unloader. The secondary protection device aims to overcome the shortcoming that if an existing cam limiter arranged on the ship unloader for controlling steel wire ropes on a roller of a winch to lift the receiving plate breaks down, the steel wire ropes will be snapped and the receiving plate will fall. A rope penetrating frame with the vertical face parallel with the center line of the roller is installed on one side of the roller, the steel wire ropes penetrate through the rope penetrating frame, and swing arms capable of swinging along with the vertical face are oppositely installed on the two sides of the vertical face, opposite to the roller, of the rope penetrating frame respectively. The rope penetrating frame is further provided with a limiting switch, and when wires, wound around the roller, of the steel wire ropes move excessively towards the two sides respectively, the limiting switch can push the swing arms to cut off power of the winch. When the wires, wound around the roller, of the steel wire ropes continuously and excessively move towards the winding side or the releasing side, the parts, in the rope penetrating frame, of the steel wire ropes forcibly push the swing arms to be deflected towards one side of the limiting switch and to touch one side of the limiting switch, and therefore the power of the winch can be cut off, the accident that the steel wire ropes are snapped and the receiving plate falls is prevented, and secondary protection is achieved.

The invention relates to an implanting instrument with bionic micro-thorn attachment structures. The implanting instrument at least comprises an attachment frame, wherein the attachment frame is a self-expanding type support or a ball-expanding type support and comprises a plurality of frameworks and a plurality of bionic micro-thorn attachment structures; the bionic micro-thorn attachment structures are arranged on the outer surfaces of the frameworks; the bionic micro-thorn attachment structures are in the form of bionic plant surface sparse micro-thorns; each bionic micro-thorn attachment structure comprises a thorn root and a micro-thorn; each micro-thorn is composed of a thorn body and a thorn tip; each micro-thorn is linear or J-shaped or the combination of the linear micro-thorn andthe J-shaped micro-thorn; and the thorn bodies and / or the thorn tips of the micro-thorns can touch cavity tissue to achieve an attachment type anchoring function. The implanting instrument is wide inapplication range, free of anchoring damage, firm and high in safety.

The invention discloses a lithium ion battery diaphragm which comprises a microporous membrane. The two walls at the outer side of the microporous membrane are both coated with silicon dioxide coatings, the outer side walls of the silicon dioxide coatings are bonded with aramid fiber layers, and the outer side walls of the aramid fiber layers are coated with ceramic coatings. The preparation method of the lithium ion battery diaphragm comprises the following steps of S1, adding a polyethylene raw material, a pore-forming agent and an additive into a heating container at the temperature of 85-110 DEG C to be heated, bonding an aramid fiber layer to the outer side wall of the silicon dioxide coating, then coating the outer side wall of the aramid fiber layer with the ceramic coating. The ceramic coating can prevent lithium crystals from penetrating through the polyethylene diaphragm of a lithium battery, and the better protection effect is achieved. The aramid fiber layer can play a role in secondary protection and can also play a role in preventing static electricity from influencing the lithium battery, so that the problem that certain hidden dangers exist in the use process due to the fact that the polyethylene diaphragm is easy to penetrate is solved, and the use safety of the lithium battery is improved.

The invention discloses a safety injector which comprises an outer sleeve, a push rod, a rubber plug and a screw opening. The outer sleeve is perpendicularly arranged, the push rod is inserted into the outer sleeve from a lower end opening of the outer sleeve, the rubber plug is arranged on the push rod in a sleeving mode and located in the outer sleeve, a rubber plug installing opening and a breakage notch are sequentially formed in the upper portion of the outer circumferential face of the push rod from top to bottom, and a push rod boss is arranged at the top end of the push rod. The screw opening is inserted into the outer sleeve from an upper end opening of the outer sleeve. The push rod boss is inserted into the screw opening from a lower end opening of the screw opening. The safety injector is simple in structure and convenient to operate, the shape damage effect on a used injector is obvious, and repeated use of the injector can be prevented.

The invention discloses a modular multi-chip packaging structure and a packaging method thereof. A plurality of packaging units are arrayed on a substrate, and the packaging unit is formed by a plurality of chips stacked in steps. The lead ends of the chips stacked in steps are located on the steps. On the surface, the lead ends of multiple chips are connected by chip wiring, and the chips do not need to be wired, which reduces the packaging volume of the chip and avoids the loss of electrical performance on the wirebond line. The plastic package is plastic-sealed. The bottom of the first plastic package is provided with an etched circuit connected to the chip wiring, and the connecting wiring is arranged on the substrate. The etched circuit at the bottom of the first plastic package is connected to the connection wiring on the substrate. Multiple packaging units are sealed on the substrate, and the chips are vertically placed on the substrate after plastic packaging. The independent modules can be packaged together to integrate different functions, which breaks the limitations of traditional multi-chip packaging, and has a simple structure. The connection is stable.

The invention discloses a ready-to-use general practice medical kit, which comprises a lower kit body, an upper kit body and a placing area, wherein the upper kit body is hinged to the lower kit body, the placing area is arranged in the lower kit body, a display is arranged in the upper kit body, a diagnosis integral machine is arranged in the placing area and is connected with the display, a wiring port of the diagnosis integral machine is respectively connected with two or more than two detection probes through connecting wires, one side of the wiring port of the diagnosis integral machine is provided with a space for placing the detection probes, the wiring port of the diagnosis integral machine is provided with a clamping plate for fixing a plug of each connecting wire onto the wiring port, the clamping plate is provided with wire clamping grooves, the width of each wire clamping groove is smaller than the diameter of each plug at the wiring port of the diagnosis integral machine, the display and the diagnosis integral machine are connected in a wireless way, and one side of the lower kit body is provided with a pull-out window. The medical kit has the advantages that the time and labor are saved, the convenience in use is realized, the inserting and plugging are not needed, and the internal space is flexible and variable.

The invention relates to a rotational structure of a mechanical arm for an automatic lathe. The rotational structure comprises a fixing plate A and a fixing plate B. A bearing pedestal is fixed to the upper portion of the fixing plate A. A linear bearing A is fixed to the upper end of the fixing plate B, a linear bearing B is fixed to the lower end of the fixing plate B, and a rotating shaft penetrates through the linear bearing A and the linear bearing B. A fixing shaft block is fixed to the upper side of the lower end of the fixing plate B, a rubber gasket is arranged between the fixing shaft block and the linear bearing A, and a buffer spring is arranged on the outer circumference of the linear bearing A. A protrusion part is arranged at the lower end of the rotating shaft. A rotating part is arranged on the lower portion and the protrusion part of the rotating shaft. The rotating part comprises a fixing piece A, a fixing disk, a fixing piece B, a fixing groove and a bolt. A bearing A is arranged inside the fixing disk, and a bearing B is arranged in the fixing groove. Two nuts are fixed to the lower end of the fixing groove. The nuts are connected with a threaded pipe, and a grabbing part is welded to the lower end of the threaded pipe. The rotational structure of the mechanical arm for the automatic lathe has the advantages of being easy and convenient to operate, capable of saving manpower and high in economic benefit.

The invention discloses an elevator car rope head installation structure comprising a rope head plate (1), a car rope head fixing device (2), a car guide rail (3) and a speed limiter installing base (4) used for installing an elevator speed limiter. The back side of the rope head plate (1) is connected to a shaftway wall through a fixing support (5); the rope head plate (1) is provided with a plurality of connection holes for installing the car guide rail (3) in the vertical direction; the car guide rail (3) is fixedly connected to the front side of the rope head plate (1) through fastening pieces connected with the connection holes; and the car rope head fixing device (2) and the speed limiter installing base (4) are fixedly arranged on the front side of the rope head plate (1) and located on the two sides of the car guide rail (3). The elevator car rope head installation structure can be used for installing the elevator speed limiter at the same time, has the beneficial effects of being simple in structure, safe, steady and convenient to install and is particularly suitable for being used on an elevator without a machine room.

The invention discloses a connecting pier for isolation and protection of motor vehicles and non-motor vehicles on the inner side of a bridge. The upper surface is connected with a placement board, and the upper middle part of the placement board is fixed with an inner rod, and the outer side of the inner rod is covered with a roller. Buckles are provided on the outer side of the upper part of the column, fixed blocks are installed on the upper and lower ends of the front side surface of the installation base, baffles are provided on the inner surface of the extruded plate, and the inner side of the baffle is connected to the installation base through a pull cord, and The outer surface of the baffle is provided with balls. The motor vehicle and non-motor vehicle isolation protection connecting pier inside the bridge can protect passing vehicles and avoid secondary casualties in the event of a traffic accident.

The invention discloses an electronic seal of a container, comprising a monitoring circuit unit, a current circuit unit, a wireless transmission module, a power supply circuit unit and a charging circuit unit. The current circuit unit is electrically connected with the monitoring circuit unit, the wireless transmission module is electrically connected with the monitoring circuit unit, the power supply circuit unit is electrically connected with the monitoring circuit unit and the current circuit unit so as to supply working voltage of the power supply circuit unit, and the charging circuit unit is electrically connected with the monitoring circuit unit. An alarm message can be sent to a management center at the first time after the container electronic seal is damaged so that a manager can accurately and quickly know the time, the position and the cargo information of the stolen container, and the possibly generated loss is reduced or even avoided when the cargo is stored in the container. The novel container electronic seal can send the position and the cargo information of the container to the management center of a warehouse while the electronic seal of the container is pried, and staff can arrive at the scene at the first time, thereby the effect of secondary protection is achieved.

The invention discloses a novel high-efficiency air door structure capable of preventing spontaneous combustion. The novel high-efficiency air door structure capable of preventing spontaneous combustion comprises a mounting frame, three rotating shafts, a fire extinguishing assembly and a driving assembly, wherein the front and rear side surfaces are both fixedly connected with fixed plates, and the inner side surfaces of the fixed plates are respectively and fixedly connected with the front and rear side surfaces of a protective cover; the outer cambered surfaces of the three rotating shaftsare respectively and rotatably connected with the inner walls of round holes formed in a top plate and bottom plate of the mounting frame, the three rotating shafts are distributed at equal intervals,the middle part of the outer cambered surface of each rotating shaft is fixedly connected with the inner wall of a through hole in the center of a wind shield, and a connecting assembly is arranged on the upper end of each rotating shaft; the fire extinguishing assembly is arranged on the upper surface of a bottom plate of the protective cover; and the driving assembly is arranged on the upper surface of the mounting frame. According to the novel high-efficiency air door structure capable of preventing spontaneous combustion, the control is automatically carried out, so that the manual operation is reduced, the use is convenient, the direction and volume of air inlet are convenient to adjust, and the application range is wide; and the fixed-point fire extinguishing is realized, the position is accurate, the reliability is high, the fire extinguishing speed is high, and the safety is good.