55results about How to "Reduce disassembly process" patented technology

The invention discloses a brake drum. The brake drum comprises a brake drum body. The brake drum body comprises a hub connecting part and a brake part. A transition connecting part is arranged between the hub connecting part and the brake part and provided with a balance part used for adjusting the balance amount of the brake drum body. Compared with the prior art, the balance part achieving the adjustment on the balance amount is far away from the brake part and is close to the hub connecting part, meanwhile, the balance amount of the brake drum body in the axial direction is achieved, and the rotation centrifugal force and external throwing force are greatly reduced; and accordingly, the burden of a bearing is greatly reduced, and the service life of the bearing is prolonged.

The invention belongs to the field of centrifugal pumps and particularly relates to a series-parallel connection centrifugal pump which has the flow channel series-parallel connection switching capacity. The series-parallel connection centrifugal pump comprises a pump body and a pump shaft. The pump shaft is provided with two impeller parts, and a first cavity channel and a second cavity channel are formed in a pump cavity corresponding to the two impeller parts. A first bypass flow channel, a second bypass flow channel, a first liquid outlet flow channel and a second liquid outlet flow channel are formed in the pump body, wherein the first bypass flow channel and the second bypass flow channel are used for communicating an outlet of an external liquid inlet pipeline and an inlet of the first cavity channel as well as the outlet of the external liquid inlet pipeline and an inlet of the second cavity channel respectively, and the first liquid outlet flow channel and the second liquid outlet flow channel are used for communicating an inlet of the external liquid outlet pipeline and an outlet of the first cavity channel as well as the inlet of the external liquid outlet pipeline and an outlet of the second cavity channel. A branch flow channel is further arranged in the pump cavity, one end of the branch flow channel is communicated with a liquid inlet of the second cavity channel, and the other end of the branch flow channel is communicated with the first liquid outlet flow channel to form a three-way joint. The series-parallel connection centrifugal pump further comprises a switching part, a switching assembly is arranged at the second liquid outlet flow channel, and the switching assembly and the switching part are in electric linkage or mechanical linkage. Due to the linkage structure, the series-parallel connection centrifugal pump is reasonable and practical in structure, long in service life and reliable and stable in work.

The invention discloses a compact stay cable steel anchor beam and a construction method thereof. The steel anchor beam comprises a steel straining beam mechanism, beam end steel anchoring mechanisms and a stay cable anchor head bearing mechanism, wherein the steel straining beam mechanism, the beam end steel anchoring mechanisms and the stay cable anchor head bearing mechanism are matched to form the novel stay cable steel anchor beam. The construction method comprises the steps of (1), assembling the steel anchor beam; (2), hoisting the steel anchor beam; (3), after the steel anchor beam is hoisted to the position, relieving and removing hoisting equipment and installing the steel anchor beam; (4), binding steel bars of a tower column, installing templates and pouring the tower column. The steel anchor beam is simple and compact in structure, convenient to construct, low in construction cost, high in safety and long in service life. The construction method has the advantages that construction is convenient, the construction cost is low and the construction efficiency is high.

The present invention provides a watch and its strap assembly, the strap assembly may include a charging assembly, the charging assembly includes a USB connector, a charging cable and a charging connector, the USB connector and the charging connector are respectively connected to At both ends of the charging cable, most of the charging cable is embedded in the main body of the strap assembly, and the USB connector and the charging connector are exposed to the outside. When using the charging assembly to charge the watch In the case of the watch, the charging connector is coupled to the watch to be able to charge the watch. According to the wristwatch of the embodiment of the present invention, not only the charging of the wristwatch can be realized, but also the wristband can be replaced at will according to needs. In addition, since the strap is detachably connected to the case, no special tools are required when assembling or disassembling the strap, which can reduce the assembly or disassembly process and shorten the assembly or disassembly time.

The invention discloses a cargo outer packing telescopic folding frame. The cargo outer packing telescopic folding frame comprises an upper folding frame, a lower folding frame and telescopic supports, wherein the telescopic supports are fixed and connected through square tube supports on the upper folding frame and the lower folding frame, supporting connecting rods are arranged at four corners of the upper folding frame and the four corners of the lower folding frame respectively, one end of each supporting connecting rod is fixed on the folding frame in a hinged mode, and the other end of each supporting connecting rod is fixed on a nut of the folding frame through a hook. According to the cargo outer packing telescopic folding frame, foldable storage and reutilization can be realized,and resources can be effectively saved; mounting and dismounting do not need external tools, and time and labor are saved; and the size can be flexibly adjusted according to the specification of cargoes, and the telescopic folding frame is wide in application range. In addition, the structure is firm and reliable, strong in bearing capacity, and good in resisting effect on external force influencein circulation and storage processes. The cargo outer packing telescopic folding frame is suitable for being used in the logistics field and is one of the current wooden outer packing frames.

An excavation working face wind distributor comprises a machine body, a left wind cylinder connector, a right wind cylinder connector, a wind outlet and a conversion valve. The left wind cylinder connector is installed on the left side of the machine body. The right wind cylinder connector is installed on the right side of the machine body. The wind outlet and the conversion valve are installed at the side end of the machine body. When the excavation working face wind distributor is used, the left wind cylinder connector and the right wind cylinder connector are respectively connected with a ventilation wind cylinder and connected into a ventilation pipeline of the ventilation wind cylinder, one end of the ventilation wind cylinder is connected with a local fan, and the other end of the ventilation wind cylinder is communicated to the position nearby the head-on portion of an excavation working face. The local fan is started, the conversion valve is closed, at the moment, the wind outlet is opened, the end, communicated with the head-on portion of the excavation working face, of the ventilation wind cylinder is closed, and a wind current outflows from the wind outlet in the radial direction. The conversion valve is opened, at the moment, the wind outlet is closed, the end, communicated with the head-on portion of the excavation working face, of the ventilation wind cylinder is opened, and the wind current axially flows to the position nearby the head-on portion of the excavation working face. According to the excavation working face wind distributor, the axial wind current is converted into the radial wind current, and the dust removal effect is improved.

The invention discloses a tensioning disassembly-free head board on a square pile die. The head board comprises a frame head board body, wherein a tensioning screw hole is formed in the center of the head board body; a reinforcing rib is connected between the tensioning screw hole and each edge of the head board body; every two adjacent reinforcing ribs and edges of the board body, which are connected with the two adjacent reinforcing ribs, form a hollow region; and each hollow region at least accommodates a connecting bolt for connecting an end board and a tensioning board. The head board is reasonable in structure. By the head board, the connecting bolt for connecting the end board and the tensioning board of a pile body product can be disassembled under the condition that the head board is not required to be disassembled, so that the disassembly procedure is reduced, and the disassembly time is saved; and therefore, the working efficiency is improved, the working intensity is reduced, and the recruitment pressure is relieved.

The present invention provides a watch and its strap assembly. The strap assembly may include: a strap lower cover, a strap upper cover combined with the strap lower cover, and a strap upper cover combined with the strap lower cover and the strap lower cover. The watchband main body of the watchband upper cover, a pressing member and an elastic member arranged on the pressing member are installed in the internal space formed by the combination of the watchband lower cover and the watchband upper cover, and the watchband lower cover A first through hole and a second through hole for installing the pressing member are formed on the top, and the pressing member can overcome the resistance of the elastic member and move toward the upper cover side of the watch band under the action of an external force. According to the wristwatch of the embodiment of the present invention, not only the charging of the wristwatch can be realized, but also the wristband can be replaced at will according to needs. In addition, since the strap is detachably mounted to the casing, no special tools are required when assembling or disassembling the strap, which can reduce the assembly or disassembly process and shorten the assembly or disassembly time.

The invention provides a membrane bioreactor device for retarding membrane pollution and a sewage treatment method. The membrane bioreactor device is characterized in that a three-phase separator is arranged in a membrane bioreactor, and a sewage treatment device with a membrane reaction zone at the upper part and a contact oxidation zone at the lower part is formed; sewage enters the contact oxidation zone from the bottom of the reactor and then enters the membrane reaction zone from a slit of the three-phase separator; under the combined action of the absorption of activated sludge and the interception of membranes, the treatment of the sewage is realized; with the adoption of a rotating membrane filtering component, the rotating shear force is increased to retard the membrane pollution, and meanwhile, the fact that all the membranes have uniform cleaning strength is guaranteed, and cleaning dead corners are reduced; the three-phase separator is connected with a gas guide tube, so that residual gas in the contact oxidation zone is guided into the membrane reaction zone at the upper part to be used as a gas washing source of a membrane component, therefore the energy consumption is reduced; online ultrasonic cleaning and chemical cleaning equipment is arranged to reduce the assembly and disassembly procedures in the membrane cleaning process. The sewage treatment device and method have the advantages of high treatment efficiency, small membrane pollution, stable effluent water quality and good convenience in operation and management.

The invention discloses an integral hoisting method for a hydraulic cylinder in limited space. The method comprises the following steps that after a unit tail water tunnel is emptied, a maintainer enters the lower part of a gate groove through a tail man door, bottom positioning frames are vertically and symmetrically arranged right under a gate and are used for supporting a gate body, and meanwhile, leakage water at a bottom space tunnel is discharged; after the gate falls down and sits on the bottom positioning frames, a hydraulic cylinder lifting head is disassembled; and an oil station isstarted, a piston rod of the hydraulic cylinder is retracted, and a hydraulic locking part is put. According to the integral hoisting method of the hydraulic cylinder in the limited space, under the condition that a special tool is not required to be manufactured, a planning scheme is precisely calculated by using existing equipment, the psychological pressure and the injury risk of the maintainerworking in the limited space for a long time can be greatly eliminated, meanwhile, the unnecessary disassembling process is omitted, an equipment body is greatly protected, and the service life of the equipment is prolonged.