44results about How to "Increase the difficulty of disassembly" patented technology

The invention discloses an anti-theft device for base station storage batteries. The storage batteries are connected with one another in series through electrodes to form a storage battery pack, wherein threaded holes are formed on the electrodes of the storage batteries. The anti-theft device comprises a connecting piece for connecting two adjacent storage battery motors, bolts in threaded connection with the threaded holes, and a wrench for screwing the bolts. The anti-theft device for the base station storage batteries has the advantages that a drawing type connecting piece is adopted to ensure that the anti-theft device can be arranged more simply and easily and is wider in applicable specification; and a specific bolt is hidden in a cavity of the connecting piece, and can only be screwed by a corresponding special wrench which is stretched into the cavity to clamp the bolt head, so that the dismounting difficulty is greatly increased, and the anti-theft performance is improved.

The invention discloses a building glass curtain wall structure which is easy to assemble and disassemble and has a self-locking structure. The longitudinal fixing frame is connected with the rear panel through the first fixing screw, and expansion wall nails are installed on both sides of the rear panel. There are two horizontal fixed frames arranged symmetrically with respect to the central axis of the vertical fixed frame, and the two horizontal fixed frames are respectively installed on both sides of the vertical fixed frame, and the cover panel is installed on a side of the vertical fixed frame far away from the rear plate. On the other hand, there are two glass curtain walls arranged symmetrically with respect to the central axis of the covering panel, and both ends of the glass curtain wall are groove-shaped structures. The sequence is reasonable, and the vertical fixing frame, the horizontal fixing frame and the covering panel are three independent parts, and they support each other after being connected as a whole, which improves the stability of the whole when in use.

The invention discloses a gas meter accurate in counting and having an anti-tamper structure. The gas meter comprises a meter case and a counter. The counter is provided with a counter wheel carrier which is clamped and fixed, and a counter housing. The counter housing is in a single-screw anti-tamper structure. The counter is provided with a counter wheel train with a change gear pair and a transition gear pair. A driving change gear forms the input end of the wheel train, and a driven change gear is tightly cooperated with a driving transition gear through a bulge loop section which is formed on the middle part of the driving transition gear. The driven change gear forms coaxial fixation through the driving transition gear, and is rotatably cooperated with an inner section of a supporting shaft. The driving transition gear is on the outer section of the supporting shaft. The inner side of the cooperation section of the supporting shaft is provided with a driven change gear spacing shaft shoulder. The front end of the cooperation section of the supporting shaft is provided with a crossette which stops the driving transition gear from withdrawing. The driven transition gear is connected with the first-level counter wheel of the counting wheel set through worm-gears. Beneficial effects of the gas meter are that counting is accurate, the counter wheel carrier is convenient and rapid in mounting and dismounting, and the counter housing has good anti-tamper structure.

The invention relates to a novel multifunction experimental training working table for a stamped die. The novel multifunction experimental training working table comprises a working table body, the stamped die and a die storage support for containing the stamped die. The working table body is of a three-layer platform structure formed by four supporting columns and three flat plates installed on the supporting columns, a first-layer platform is provided with a die disassembling and assembling locating groove, a die assembling hole and a vise assembling hole form top to bottom, a second-layer platform is provided with a tool and measuring implement storage box, a vise can be stored in a third-layer platform, the die storage support is a support provided with a two-layer frame structure and is installed on the first-layer platform, and a computer is further assembled on the first-layer platform. The novel multifunction experimental training working table for the stamped die has five functions, is highly integrated, and completely meets the experimental training teaching requirement of the stamping course; the die structure is simplified, disassembling and assembling are easily achieved, and stamping simulation is simple and convenient to operate; the structure is compact, and the practicability is high; stamping course experimental training multimedia and actual operation comprehensive three-dimensional teaching are achieved.

The invention discloses an EPP keyboard with good secrecy performance. The EPP keyboard comprises a keyboard panel, a frame, a plurality of metal keys, a plastic gasket, a keyboard base plate, a keyboard sensing plate, a core circuit board, a core protective cover and a keyboard rear cover, wherein the keyboard panel, the frame, the metal keys, the plastic gasket, the keyboard base plate, the keyboard sensing plate, the core circuit board, the core protective cover and the keyboard rear cover are sequentially arranged from top to bottom, the metal keys are connected with the frame, the keyboard panel is sequentially connected with the frame, the plastic gasket and the keyboard base plate, the keyboard sensing plate is sequentially connected with the core circuit board and the core protective cover, and the keyboard rear cover covers the core protective cover and the plastic gasket and is connected with the keyboard base plate. The keyboard has the advantages that the disassembling difficulty is large, the anti-attack capability is strong, data safety is good, the risks of information leakage and property damage of a cardholder are reduced, and it is ensured that money in an account of the cardholder is not prone to being stolen.

The invention discloses an anti-theft municipal inspection well cover. The anti-theft municipal inspection well cover comprises a well seat and a well cover body. A bearing seat is horizontally constructed on the inner wall of the upper end of the well seat. A bearing rod is perpendicularly welded to one side of the bearing seat. The bearing rod is sleeved with a strong spring. The fixed end of the well cover body is rotatably arranged on the bearing rod in a sleeving mode. The well cover body abuts against the strong spring. The side, far away from the fixed end, of the well cover body is provided with a first-stage vertical slot and a first-stage horizontal slot. A handle is rotatably arranged in the first-stage vertical slot. According to the anti-theft municipal inspection well cover,the well cover body and the well seat are integrated to improve the stability of the well cover body and the well seat; the well cover body and the well seat are mounted in a secret mode through a built-in plug pin and a built-in limiting pin to be prevented from being found easily by a thief. Limitation to the plug pin is stopped by pressing the well cover and adsorbing a fixed magnet and the limiting pin through a movable magnet so that the thief is not likely to found the limiting pin. A person cannot rotate the plug pin through the handle, so that the opening difficulty of the well cover is improved, and the anti-theft protection effect on the well cover is achieved.

The invention discloses an ATM machine keyboard with good safety. The machine keyboard comprises a keyboard panel, a key frame, a silica gel gasket, a keyboard base plate, a keyboard mainboard and a keyboard rear cover, wherein the keyboard panel, the key frame, the silica gel gasket, the keyboard base plate, the keyboard mainboard and the keyboard rear cover are sequentially arranged from front to back, the keyboard panel, the key frame, the silica gel gasket and the keyboard base plate are sequentially connected, the keyboard mainboard and the keyboard rear cover are respectively connected with the keyboard base plate, a plurality of keys are arranged on the key frame, a plurality of button protrusions matched with the keys are arranged on the silica gel gasket, a controller is arranged on the lower surface of the keyboard mainboard, a state indicator lamp is arranged on the keyboard panel, and the state indicator lamp is electrically connected with the controller. The ATM machine keyboard has the advantages that disassembling difficulty of the keyboard is large, the anti-attack capability is strong, the data safety is good, the state indicating function is obtained, the risks of information leakage and property damage of a cardholder are reduced, and it is ensured that money in an account of the cardholder is not prone to being stolen.

The invention discloses a transformer convenient for experimental testing, which comprises a casing, the casing is provided with a connecting groove, the side wall of the casing is fixedly connected with a bending block, and the bending block is rotatably connected with a turning block. The end of the turning block is provided with a screw groove, the side wall of the housing is provided with a circular groove matching the end of the turning block, and a connecting shell is slidably connected in the connecting groove. In the present invention, when the sliding bar moves along the horizontal direction under the restriction of the fixed bar, it is affected by the elastic force of the second spring, and the force given by the second spring to the block and the force given by the third spring to the vertical block can effectively move the block in the horizontal groove. It plays a restrictive role. When the block is not affected by the force of the rotating block, the block can maintain the state of protruding from the horizontal groove, so that the block can better play the role of fixing the connecting shell and the shell, and the end of the block is fixed. The connected screw block can be threadedly connected with the screw groove so that the connection shell is engaged with the shell.