71results about How to "Not easy to pull" patented technology

The invention discloses a grounding nail, which relates to the field of electric power tools. The grounding nail comprises a ground drilling guide head, a foundation rod detachably connected with theground drilling guide head, and a striking device detachably connected with the foundation rod, wherein the ground drilling guide head, the foundation rod and the striking device are connected in sequence. The grounding nail also comprises a lengthening pipe arranged between the foundation rod and the striking device. The lower end of the lengthening pipe is detachably connected with the foundation rod, and the upper end of the lengthening pipe is detachably connected with the striking device; water through holes are formed in the lengthening pipe and the foundation rod, so that water passingresistance reduction can be realized when the conductive resistance cannot meet the requirement; and a blade arranged on the drilling guide head not only can guide, but also can increase the groundingarea. The grounding nail is not prone to deviating when the nail is nailed into loose soil, and the length can be changed, so that the nail is suitable for being used in the loose soil.

The invention belongs to the technical field of electrical cabinets and specifically relates to an explosion-proof electrical cabinet, which includes a cabinet body. Square grooves are disposed on both sides of the cabinet body. Matching hinged plates are embedded in the square grooves, and are flush with the inner and outer surfaces of the cabinet body. The side of each hinged plate close to theinterior of the cabinet body is provided with two stretching devices. In the present invention, the hinged plates are embedded in the square groove by the stretching devices to fit the cabinet body closely so as to improve sealing performance. In addition, when an explosive gas inside the cabinet body impacts the inner wall of the cabinet body, the hinged plates are pushed and have two motion states after removed from the square grooves, in one of which two motion states, the gas drives the bottoms of the hinged plates to rotate, and in the other of of which two motion states, the hinged plates continues staying away from the cabinet body. Finally the expanded gas is ejected not only from the deflected positions on the bottoms of the hinged plates, but also from a gap between the tops of the hinged plates and the cabinet body, thereby expanding the diffusion range of the expanded gas, and the hinged plates are clamped to the positions of the square grooves, and are not easy to pull soas to improve safety.

The invention discloses a mold for molded barb type side bending. The mold comprises an upper mold body, a lower mold body, an upper mold fixed molded block, a lower mold fixed molded block, slotting tools and side molded blocks. The upper mold body and the lower mold body are connected and matched through a plurality of locating guide columns and a plurality of springs; the upper mold fixed molded block is fixedly arranged on the upper mold body, and the lower mold fixed molded block is fixedly arranged on the lower mold body; the two sides of the lower mold fixed molded block are each provided with one side molded block through a guide rail and a reset spring on the lower mold body; and the lower mold fixed molded block comprises a main body, a lifting block and an inserting block. The mold is simple in structure and reasonable in design, and when two symmetric products with barbs are bent and punched, the aim that the two products are synchronously machined at one time is achieved; the shape consistency of the two products is very high, and the material pulling phenomenon is not prone to appearing in a gap reserved after machining.

The invention relates to a part of a welding clamp, in particular to an electric conductor of the welding clamp. The electric conductor of the welding clamp comprises an electric conductor formed by punching a sheet copper, and is characterized in that the wiring end of the electric conductor is provided with a tubular sheath, and the tubular sheath is provided with groove screw holes. The electric conductor of the welding clamp has the advantages that the wiring end of the electric conductor is not easy to deform; groove screws are not easy to loose, and a lead is not easy to pull, so that wiring is more stable; sparks are not easy to generate, and temperature is stably increased, so that hands cannot be scalded by the welding clamp; the service life is long, the labor strength of a welding operator is reduced, the welding efficiency is high, the welding cost is low, and the like. The electric conductor of the welding clamp is high in cost performance.

The invention provides an intelligent ascites drainage device capable of observing drainage speed and the interior of an abdominal cavity. The intelligent ascites drainage device comprises a punctureneedle head, a drainage tube, a vacuum negative pressure bottle and a fixing box, wherein the two ends of the drainage tube are connected with the puncture needle head and the vacuum negative pressurebottle respectively, and the vacuum negative pressure bottle is placed in the fixing box; the device also comprises a control valve for controlling the drainage speed and installed on the drainage tube; the lower port of the drainage tube is connected with an anti-backflow valve for preventing a solution in a vacuum bottle from flowing back; and the device also comprises a recording module whichis used for displaying the weight and the flow speed of the drainage solution, a camera module which is used for observing the interior of the abdominal cavity, and a supporting module which is used for fixing the drainage tube. The intelligent ascites drainage device is excellent in performance, has more functions compared with a traditional ascites drainage device, can meet the requirements of medical staff, and improves the working efficiency of the medical staff.

The invention discloses a plug device with ribs for an oil conveying pipe. The plug device comprises air bags, valves arranged on the air bags, a flexible pipe connected with the valves, an inflation pump connected to the tail end of the flexible pipe and a pressure gauge installed on the flexible pipe. The plug device further comprises setting ribs uniformly arranged on the outer surfaces of the air bags, Since an air bag is provided, the only thing needs to be is pumping out petroleum in the air bags on the two ends during emergency maintenance. The operation process is simple, labor-saving and time saving, and the work efficiency is substantially improved. The pressure gauge allows a worker to decide to aerate or discharge the air bags based on the pressure value on the pressure gauge, the setting ribs uniformly arranged on the outer surface of the air bags retain the profile of the air bag, so that the air bags can be well stuck in the petroleum pipe.

The invention relates to the technical field of pet supplies, in particular to an LED light emitting pet collar with a positioning function. The LED light emitting pet collar comprises a collar belt,a positioning box, a flexible hook-face liquid crystal screen, a fancy and colored lamp strip and a collar electromagnetic lock, two cutting lines are embedded in the portion, close to the edge, in the collar belt in the length direction of the collar belt, a lithium battery is connected with a power supply port of an MCU single-chip microcomputer through a voltage drop module, a UWB chip, a GPS chip, and a communication chip are all connected with a serial port of the MCU single-chip microcomputer, the flexible hook-face liquid crystal screen is installed on the positioning box, the fancy andcolored lamp strip is electrically connected to the MCU single-chip microcomputer, the collar electromagnetic lock is electrically connected to the MCU single-chip microcomputer, and a heart rate sensor is embedded in the inner side of the collar belt and electrically connected with the MCU single-chip microcomputer. The LED light emitting pet collar has diversified functions, has nighttime lightemitting identifications, and can position a pet after the pet gets lost, and display effective information and emergency contacts of the pet.

The invention discloses a portable small rice harvester, which comprises a gasoline engine, an extruding plate, a second pillar and a sliding plate, and a protective sleeve is sleeved on the outer wall on the left side of the connecting sleeve, and the outer wall of the connecting sleeve is fixedly connected to the There is a handrail, the right side of the connecting sleeve is welded with a connecting frame, and the top of the first pillar is hinged with a second pillar, the outer wall of the second pillar is sleeved with a limited round block, and the second pillar The top of the top is equipped with a straw upturning piece, and the back of the straw upturning piece is uniformly provided with a limit insertion piece, and the back side of the straw upturning piece is welded with a handle. The present invention is equipped with a strap combined straw upturning structure, which can be disassembled when carrying the straw upside down structure, which is small in size and easy to carry. It has a reinforced structure to strengthen the fixing of the cutting and harvesting rotor to ensure cutting efficiency.

The invention provides a letter and number mechanical coded lock. The letter and number mechanical coded lock sequentially comprises a handle, a code confirming part, a spring bolt and a connecting rod penetrating through the handle and the code confirming part. An interval exists between one end of the connecting rod and the spring bolt. At least two parallel code rotary discs are arranged in the code confirming part, through holes through which the connecting rod penetrates are formed in the centers of the code rotary discs, and grooves are formed in the edges of the through holes. A plurality of code grooves are formed in the peripheral edges of the code rotary discs. A connecting rod sliding groove is connected with a movable head protruding from the connecting rod, and horizontal elastic pieces of a movable part in the movable head are inserted into lower positions of inclined surfaces of inclined surface grooves of inclined surface groove pieces. A restoration elastic piece clamped between the two inclined surface groove pieces enables the horizontal elastic pieces to break away from the inclined surface grooves when turning upwards. The safety performance of the coded lock is very outstanding, when a code is not correct, the code rotary discs touch the restoration elastic piece, and the restoration elastic piece lifts up the horizontal elastic pieces so that the inclined surface groove pieces can break away from the limitation of the horizontal elastic pieces and return to the original positions. A metal round ball in a safe box makes sound, and the internal action sound is prevented from leaking outwards.