38results about How to "Avoid loose damage" patented technology

An impeller structure comprising a lower cover (1) and multiple arced blades (2) designed on the lower cover (1). The blades (2) are connected to a shaft (8) and involutely distributed along the lower cover (1). The impeller structure is applicable in a high vacuum, high rotational speed brushless direct-current vacuum cleaner motor. The impeller structure is a semi-opened impeller structure and relatively small in size, reduces the amount of materials used, and is inexpensive to manufacture. An impeller cover (3) is arranged above the blades (2). The blades (2) and the impeller cover (3) are in an interference fit. The impeller cover (3) also serves as an upper cover in the structure and is assembled together with the lower cover (1) and the blades (2) into a closed impeller structure, thus not only reducing motor size but also ensuring work efficiency of the impeller.

The invention discloses an electric vehicle charging pile with the functions of sorting and intercepting. On the upper left side of the charging main unit, there is an electric box at the bottom of the charging main unit, and the control panel is installed in the middle of the charging main unit. When the charging gun of the present invention is buckled into the external buckle groove on the integrated wire aligner after use, the lifting assembly is driven by the translation frame. During the ascent, the charging cable is moved up and clamped by the clamping frame. The gun mechanism seals and protects the charging gun, which has the effect of preventing leakage. After the overall cooperation, the charging gun and the charging cable can be guaranteed The line will not be in a dragging state, which benefits long-term use and avoids loosening and damage.

The invention provides an installation mechanism of a roadheader foam dust removal device. The installation mechanism comprises a lower hoop, a lower clamping plate, a two-way lead screw, an upper clamping pate, a fixed frame, an upper hoop, a lower support plate, an upper support plate, a sliding groove and a moving clamping plate; the fixed frame is fixed on the left end face of the upper hoop;the two-way lead screw is fixed in the fixed frame; the upper clamping plate is connected with the two-way lead screw through a ball nut I; the ball nut I is assembled at a position of the upper portion of an annular side face of the two-way lead screw; the lower clamping plate is connected with the two-way lead screw located at the lower side of the lower hoop through a ball nut II, and the stability of the mechanism installation is improved; the lower clamping plate is fixed on the upper side of an annular side face of the upper hoop, and the buffer function of the mechanism is realized by the design; the moving clamping plate is fixed on the upper end face of a sliding block, and the design facilitates the installation of the foam dust removal device; and the installation mechanism of the roadheader foam dust removal device is good in stability, convenient to operate, long in service life, and high in reliability after installing.

The present invention relates to a bamboo-shaped free turning junction box. The bamboo-shaped free turning junction box comprises an insulated center cylinder and a plurality of outer cylinders rotationally sleeving on the center cylinder in order; three first raised lines are arranged at the outer portion of the center cylinder along the axis direction; the three first raised lines perform equal division of the outer circumference of the center cylinder; the outer surface of the center cylinder between two adjacent first raised lines is provided with arc first conducting strips; three second raised lines are arranged at the inner circles of the outer cylinders; the three second raised lines perform equal division of the circumference of the inner circles of the outer cylinders; the second raised lines are coated with second conducting strips; the second conducting strips are in respective sliding electrical contact with the first conducting strips; the center cylinder is provided with a main firing line hole, a main null line hole and a main ground wire hole along the axis direction; and the outer cylinders comprise branch firing line holes, branch null line holes and branch wire holes along the radial direction of the outer cylinders. The bamboo-shaped free turning junction box can allow each branching to have a free rotation angle approach to 120 degrees to facilitate wiring, and has moistureproof, waterproof and convenient dismounting and mounting, and the service life of the wire is long.

The invention discloses a protective outer frame for a frequency converter of a grinding machine, including an outer frame, the front side of the outer frame is provided with an opening, first fixed springs are uniformly distributed and fixedly connected on the bottom surface of the inner cavity of the outer frame, the tops of the first fixed springs are fixedly connected with a first support plate, the top surface of the first support plate is provided with a first fixing clamping groove, second fixing springs are uniformly distributed and fixedly connected on the top surface of the inner cavity of the outer frame, and the bottom surfaces of the second fixing springs are fixedly connected with a second support plate. The invention relates to the technical field of frequency converter protection equipment. The invention relates to the protective outer frame for the frequency converter of the grinding machine, achieves the purpose of prolonging the service life of the frequency converter, which can effectively cushion and damp the vibration of the frequency converter and play an effective dust-proof role, and the frequency converter can be clamped and fixed on the surface of the grinding machine by using the outer frame, so that the frequency converter is convenient to dismounted from and mount on the surface of the grinding machine, and the frequency converter is not easy to damage and convenient to use.

The invention discloses a garbage compressor and a butt joint locking device for a garbage can. The butt joint locking device (100) comprises a supporting piece (101), a driving piece (103) and a connecting piece (104), and the driving piece (103) can drive the supporting piece (101) to surround a first hinge joint (106) to rotate in a pivoted mode so that the second end of the supporting piece (101) can support and jack the garbage can (300). A first supporting portion of the supporting piece (101) can jack the connecting piece (104) to enable a hook portion (111) of the connecting piece (104) to be fastened with a block bar of the garbage can (300). Through the technical scheme, the supporting piece and the connecting piece bear the vertical pressure and horizontal tensile force of the garbage can correspondingly, and impacting of horizontal tensile force on the supporting piece and the driving piece is avoided, so that the phenomenon that a hinge joint structure of the supporting piece is loosened and damaged under the effect of horizontal tensile force is avoided, and the service life is prolonged.

The invention relates to a head-mounted reinforced earphone. The head-mounted reinforced earphone includes an earphone housing, the earphone housing includes an earphone bottom shell, an earphone cover shell is adhered to the upper end surface of the earphone bottom shell, and an application plate is extended inwardly from the earphone cover shell, The outer surface of the application plate is provided with an insertion hole, the upper end surface of the earphone bottom case is fixedly connected with an insertion block, the outer surface of the insertion block is connected with a reinforcement, the insertion block penetrates the insertion hole, and the reinforcement The volume of the part becomes larger, clamping the sticking plate and the earphone bottom shell; the reinforcement part is a capsule; the outer surface of the insertion block is provided with a vent hole, and the vent hole is located inside the capsule body, and the insertion block The ventilation hole of the headphone is connected with a connecting pipe, and the connecting pipe is connected with a ventilation mechanism; the head-mounted reinforced earphone has a simple structure, convenient disassembly and operation, good sealing performance, and remarkable reinforcement effect, which can effectively prevent it from falling. In the case of damage to the parts of the shell, it is convenient to popularize and use.

An impeller, applicable in a brushless vacuum cleaner motor. The impeller comprises a lower cover (1). A gradual protrusion (5) is upwardly formed at the center of the lower cover (1). Both the upper and lower surfaces of the lower cover (1) form arced surfaces (6). The impeller (2) is fixedly arranged on the upper surface of the lower cover (1). The impeller comprises only the lower cover (1) and multiple arced blades (2) thereon, thus forming a semi-opened impeller. The impeller is relatively small in size, convenient to carry, and inexpensive to manufacture. The lower cover (1) is protruded upwards at the center thereof to form the arced surfaces (6), thus allowing the impeller to be structurally compact, and effectively reducing the size of the impeller. The impeller (2), the lower cover (1), and a central shaft (7) are integrally processed and molded, thus allowing for high structural strength and improved use performance.

The invention provides an U-shaped steel reinforced composite anchor net support structure for a high-stress soft rock tunnel of a deep well and a construction method thereof. The construction method comprises the following steps of firstly, punching an anchor bolt and an anchor cable into a surrounding rock, supporting the surrounding rock, and exposing with setting lengths; then, sequentially paving and hanging a polyester fiber net and a reinforcement net on the exposing parts of the anchor bolt and the anchor cable, tightly paving the polyester fiber net onto the surrounding rock, tightly paving the reinforcement net onto the polyester fiber net, building an U-shaped steel bracket, enabling the anchor bolt and the anchor cable to sequentially penetrate through the polyester fiber net and the reinforcement net, and fixing on the reinforcement net by trays and screw caps; casting a concrete spray layer to seal the whole support structure. The construction method has the advantages that by using the U-shaped steel bracket, the reinforcement net and the polyester fiber net as skeletons, and forming a reinforced concrete sealing structure with the concrete spraying layer, the flexibility and pressure relief functions of the polyester fiber net are utilized, the pressure of the surrounding rock is uniformly distributed into the whole support system, and the active support property of the anchor bolt and anchor cable, and the passive support property of the reinforcement net and the U-shaped steel bracket are fully utilized.

The invention discloses a sliding bearing raise-boring machine inserted tooth hob capable of being disassembled quickly. The sliding bearing raise-boring machine inserted tooth hob capable of being disassembled quickly comprises a hob shell, a hob shaft and a rock breaking inserted tooth. The hob shell and the hob shaft are connected through a sliding bearing. The rock breaking inserted tooth is installed on the outer side wall of the hob shell. The hob shell is designed in a spilt mode, a hob shell core is forged by bearing steel and has higher impact resistance, and the surface on which thehob shell core is in contact with the sliding bearing can be subjected to chromizing to improve the wear resistance of the surface; an outer hob shell is forged with a single metal wear-resistant material to further improve the mechanical properties of the outer hob shell, and a split structure can make full use of the advantages of the two materials and simplify the bimetal casting process, so that manufacturing cost of the hob shell is reduced. When the rock breaking inserted tooth is worn and needs to be replaced, the outer hob shell and the hob shell core can be quickly disassembled by thesliding bearing and replaced with a new hob outer shell and a new hob shell core, and then the new hob outer shell and the new hob shell core are mounted on the hob shaft through the sliding bearing.