55results about How to "With security protection" patented technology

The invention discloses an operating mechanism of a direct-acting three-position isolation switch. The operating mechanism comprises a driving shaft A, a driving shaft B and a driving shaft C which are arranged in parallel; a chain wheel A, a chain wheel B and a chain wheel C are arranged on the driving shaft A, the driving shaft B and the driving shaft C respectively; and the driving shaft A, the driving shaft B and the driving shaft C are linked with one another through transmission chains. The operating mechanism is characterized by further comprising a driving motor; and a transmission gear set is arranged between an output shaft and a driving shaft C of the driving motor. By the scheme of the invention, transmission parts are reduced; the cost is reduced, the structure is simple, the weight is light; and the three-position switch is safely protected.

The invention discloses an uncapping device for a vacuum test tube uncapping machine. The uncapping device comprises an uncapping frame, an uncapping frame lifting and driving device, an uncapping plate, an uncapping plate driving device and an ejector rob; the uncapping frame comprises an upper uncapping frame and a lower uncapping frame; the uncapping plate is arranged between the upper uncapping frame and the down uncapping frame; through holes through which a test tube passes are distributed on the upper uncapping frame and the low uncapping frame; the number and the positions of the upper uncapping frame are in one-to-one correspondence with the number and the positions of the lower uncapping frame; uncapping driving gears which are driven by a motor to rotate are distributed on the upper uncapping frame; each uncapping gear is provided with a rubber ring; the inner diameter of the rubber ring is so large that the rubber ring can be rightly sleeved on the cover of the test tube; and each uncapping gear corresponds to one through hole on the upper uncapping frame and the uncapping gear is arranged on the through hole. The invention discloses the vacuum test tube uncapping machine with the uncapping device. The uncapping device has the advantages of simple structure, low cost, small volume, high safety, and high efficiency and is easy to manufacture and can open vacuum test tubes with screw covers and straight covers.

The invention discloses a pressurized masticator for rubber and plastic. The pressurized masticator comprises a heating and cooling system, a pneumatic control system, a pressing device and a mixing kneading mechanism. The mixing kneading mechanism is arranged on a base, and comprises a mixing kneading chamber, a front rotor shaft and a rear rotor shaft. The front rotor shaft and the rear rotor shaft are connected with a gear box which is connected with a reducer. The reducer is connected with a main motor through a belt transmission device, and the mixing kneading chamber is provided with a turnover mechanism, and connected with a hopper. The hopper is provided with the pressing device which is fixed through a rack on the base. The pressurized masticator for the rubber and plastic has the advantages of being simple in structure, convenient to assemble and maintain, stable in transmission performance, and high in efficiency, and having safe protection function when overloaded.

The invention relates to a method for realizing electronic document transmission by means of RFID (radio frequency identification) and AES (advanced encryption standard) encryption technology, which aims to solve the problem that various consumption detailed lists and various reports need to be printed in various consumption places, so that paper and toner of printers are greatly consumed. The method includes the steps: generating an RFID electronic tag for a customer according to personal ID (identification) number information; utilizing an RFID reader to read RFID electronic tag information and upload the information to a central server when the customer is in consumption; authorizing consumption after the central server checks the information; after consumption, leading the central server to generate personal information and consumption data of the customer into an electronic report document according to predefined templates, encrypting the electronic report document by using a personal password of the customer as a secret key and by means of an AES encryption algorithm, and sending the electronic report document to the customer via a text, a multimedia message or an email. By the aid of the method, electronic document transmission is realized, personal data are safely protected to some degree, and a great number of printing costs are saved.

The invention discloses a universal forklift portal test bench. The universal forklift portal test bench comprises a flat plate carrying assembly capable of moving along the ground, a portal frame mounting seat used for fixing a horizontal part of a test portal frame, a vertical mounting seat used for being connected with a vertical part of the test portal frame, a portal frame inclination adjusting device used for adjusting an inclination angle needed by assembly of the vertical part, a portal frame lifting protection frame used for preventing the test portal frame from tipping over and a control device used for controlling the test portal frame to carry out corresponding experiment operation; wherein the gantry mounting base, the vertical mounting base and the control device are all arranged on the flat plate carrying assembly, one end of the gantry inclination adjusting device is connected with the vertical mounting base, the other end of the gantry inclination adjusting device is connected with a lug hole of the vertical part, the portal frame lifting protection frame is provided with a hollow part and a lifting channel so that the test gantry can pass through the hollow part to be assembled with the gantry mounting seat, and the vertical part can move along the lifting channel conveniently. According to the universal forklift portal frame test bench provided by the invention, accuracy, applicability and safety of the forklift portal frame performance test bed can be improved.

The invention discloses a new energy automobile power battery self-adaptive transshipment device which comprises a movable frame, a lifting bracket assembly, a transshipment clamping table and a positioning supporting table, the lifting bracket assembly is fixedly installed on the surface of the movable frame, and the lifting bracket assembly comprises a lifting guide frame, a moving arm, a bracket deflection steering wheel and a deflection steering engine; a lifting frame is slidably mounted on the inner side of the lifting guide frame, and the bracket deflection steering wheel is fixedly mounted at the top end of the lifting frame. According to the transport vehicle, by arranging an automatic guide type vehicle body structure and utilizing electromagnetic or optical or radar laser automatic guide mechanisms of equipment, the transport vehicle can run along a specified guide path, has safety protection and various transfer functions, and is provided with a trolley programming device, a parking selection device, safety protection and various transfer functions; and under the monitoring of a computer, the self-adaptive transshipment robot can be autonomously driven in an unmanned manner according to an instruction, automatically runs along a specified guide path and arrives at a specified place, so that a self-adaptive transshipment task is completed.

The invention relates to a coal burning system with a safety protection function. The coal burning system comprises a coal burning hearth and a burning device used for burning dry gas discharged from the coal burning hearth. The burning device comprises a burner, a feeding system and a frequent-blowing device. A dry gas inlet of the feeding system is connected with a dry gas discharge outlet of the coal burning hearth. A dry gas outlet of the feeding system is connected with a feeding port of the burner. A by-pass emptying valve used for discharging dry gas in the feeding system is arranged inside the feeding system. When the coal burning system operates normally, gas supply of the burner is stopped, and the by-pass emptying valve is normally opened; when the burner operates, the by-pass emptying valve is normally closed; once dry gas leaks or dry gas remains in a pipe, the dry gas is discharged through the by-pass emptying valve. According to the coal burning system with the safety protection function, if the dry gas leaks or the dry gas remains in a pipeline, dangers and hidden dangers can be eliminated as long as the emptying valve is opened, so that the coal burning system is convenient and quick to use, and high in security coefficient.

The invention relates to a convenient-to-fold stroller, which is characterized by comprising a front frame, a rear frame, a pushing frame, a first linkage sliding block, a first locking device, a second linkage sliding block, a second locking device and an unlocking cord pull. Two T-shaped rods are arranged on the upper part of the rear frame, and the upper end of each T-shaped rod is hinged to one upper end of the front frame; the pushing frame is hinged to the upper ends of the T-shaped rods; the two ends of the first linkage sliding block are hinged to a first linkage rod and a second linkage rod; the first locking device is used for locking the first linkage sliding block; the two ends of the second linkage sliding block are hinged to a third linkage rod and a fourth linkage rod; the second locking device is used for locking the second linkage sliding block; the two ends of the unlocking cord pull are arranged on the first locking device and the second locking device and can drive the first locking device and the second locking device to be unlocked, the first locking device comprises a first locking piece, and a double-lock button capable of retaining the first locking piece is arranged on the first locking device. The convenient-to-fold stroller has a simple structure, and is convenient to fold, and the size of the stroller is small after being folded.

The invention discloses a safety protection device for building electrical construction. The safety protection device comprises a protection box body with an opening in the front side, an auxiliary inclined plate is connected to the end, located at the opening, of a bottom plate, and vertical sliding grooves are respectively formed in two side plates. Sliding blocks are slidably arranged in the sliding grooves, and the inner sides of the sliding blocks are fixedly connected with arc-shaped lower supports with upward openings. The lower supports are located outside the sliding grooves. The twolower supports are provided with cable coil shafts in a lapped mode, and the bottom ends of the lower supports are connected with lifting rods. A fixing seat is further installed at the bottom end ofthe bottom plate, the fixing seat is rotatably connected with a threaded rod, and the threaded rod is connected with a slide-moving block in a threaded mode. The two sides of the slide-moving block are respectively and rotatably connected with bending connecting rods, and the two bending connecting rods penetrate through the bottom plate to be rotatably connected with the bottom ends of the two lifting rods. When the cable coil shafts move to the upper parts of the lower supports, the threaded rod is rotated so as to enable the slide-moving block to move along the threaded rod, under the connecting rod transmission of the bending connecting rods, the lifting rods can be raised in the vertical direction, so that cable coils can be placed, the operation is time-saving and effort-saving, andmanpower is not required more.

The invention discloses an operating mechanism of a direct-acting three-position isolation switch. The operating mechanism comprises a driving shaft A, a driving shaft B and a driving shaft C which are arranged in parallel; a chain wheel A, a chain wheel B and a chain wheel C are arranged on the driving shaft A, the driving shaft B and the driving shaft C respectively; and the driving shaft A, the driving shaft B and the driving shaft C are linked with one another through transmission chains. The operating mechanism is characterized by further comprising a driving motor; and a transmission gear set is arranged between an output shaft and a driving shaft C of the driving motor. By the scheme of the invention, transmission parts are reduced; the cost is reduced, the structure is simple, the weight is light; and the three-position switch is safely protected.

The invention discloses a fuel gas pressure regulation device for a city gas gate station. The fuel gas pressure regulation device for the city gas gate station comprises a filtering purification system 1, a metering system 2, a safety protection facility system 3, a pressure regulation system 4, a valve system 5, a heat exchange system 6, a leakage alarm controller and sound-light alarm system 7, a pressure transmitting system 8, a temperature transmitting system 9, and a data collection system 10. The fuel gas pressure regulation device (skid-mounted device) for the city gas gate station is the key equipment for a natural gas long-distance transport pipeline to enter a city pipe network and has the functions of purification, metering, pressure regulation, distribution, safety protection and the like, a fuel gas alarm system, an automatic control system and an odorizing device can be arranged according to requirements, and the pressure-regulation gas gate station is generally of a skid-mounted structural form. The fuel gas pressure regulation device for the city gas gate station can be widely used for transportation and distribution stations, city gas gate stations, regional pressure regulation and the like.

The invention relates to a distribution substation monitoring practical method based on a distribution network system. At a power distribution transformer substation terminal, a bus of a single main transformer is additionally provided with a triangular coil PT with an opening to obtain a zero-sequence voltage; 10V is taken as a 3U0 value to trigger an upload out-of-limit action remote signaling signal condition, and an out-of-limit action remote signaling signal is linked with an analog switch, so when the out-of-limit action remote signaling signal appears, the analog switch maintains an upload opening remote signaling signal; by combining a distribution network system research and judgment popup principle, setting is carried out in a distribution network system database to realize unlocalized monitoring; at a main station terminal, a distribution network system database is improved, main transformer tapping point position signals and oil temperature data are collected on site, and display and remote control on a distribution network system are achieved. The method can be applied to power distribution substations in different stages, can give full play to the effect of the powerdistribution transformer, and has popularization and application values.