52results about How to "Accurate and stable connection" patented technology

An apparatus for a photovoltaic module frame assembly comprising a frame member including a vertical member and horizontal member that cover the outer circumference the photovoltaic module, which transforms solar energy into electric energy, and corner member that performs connections and fixation between the horizontal member and vertical member, which provides a solution to alleviate traditional frame structure issues that relate to the sharpness of the corner so that any accidents that may be caused by the corner can be prevented and enhance safety. Also a groove is included to fix the frame onto the corner member that, which covers the photovoltaic module and does not have any sides, and allows accurate coupling by fitting into the frame member so that various designs and formations can be provided.

The invention relates to the technical field of optics and projection, and particularly relates to a DMD component, a DLP light machine and a DLP projection device. The DMD component comprises a base with an accommodation groove on one side, a driving plate, a DMD chip which is arranged in the accommodation groove, a supporting plate and a fixation frame with an embedded through hole. A number of elastic hooks are arranged on the edge of one side of the embedded through hole. The driving plate is fixedly clamped between the fixation frame and the supporting plate through a fastener. The base is embedded into the embedded through hole from one side, which is close to the driving plate, of the fixation frame, and the elastic hooks on the other side hook the edge of the inner wall of the accommodation groove and contact the surface of the DMD chip. According to the invention, the accuracy and stability of the contact between the DMD chip and the contact of the driving plate are ensured; the quality of the final projection screen is improved; the difficulty of disassembly and assembly and the requirement on the size of associated structural members are reduced; the efficiency of processing and production is improved; and the production cost is reduced.

An HST control mechanism includes a rotary member, a servo unit, a telescopic member, and a biasing device. The rotary member for controlling a displacement of a hydrostatic transmission (HST) is pivoted outside of a casing incorporating the HST. The servo unit includes a telescopically movable actuator and a valve controlling the telescopic movement of the actuator. The actuator is interlockingly connected to the rotary member. The servo unit is pivotally supported on the casing via a first pivot. The servo unit rotates centered on the first pivot as the rotary member rotates according to the telescopic movement of the actuator hydraulically controlled by the valve. The telescopic member is pivotally supported on the casing via a second pivot. The telescopic member is provided with the biasing device that biases the telescopic member and the rotary member toward a position corresponding to a neutral state of the HST.

The invention discloses a quantitative-type grouting device of a sleeve of a PC component and with reinforcement positioning and sealing functions, relates to the technical field of sleeve grouting, and solves the problem of difficult control of grouting amount in the grouting process of an existing sleeve and poor positioning and sealing effects of the sleeve for a reinforcement. The quantitative-type grouting device of the sleeve of the PC component and with reinforcement positioning and sealing functions comprises a sleeve main body, a grouting port is formed in the outer side of the sleevemain body, a slurry outlet is formed above the grouting port, and a grouting pipe mechanism is mounted on the outer side of one end of the slurry outlet and comprises a slurry inlet pipe, a connecting circulating pipe, a blocking rod, a connecting protective sleeve, a connecting pipe, a fixed blocking seat, a regulating plate, a rotary handle and a slurry outlet pipe. According to the quantitative-type grouting device, centering and positioning can be conducted on a connecting reinforcement in the sleeve, quantitative-type grouting operation and slurry sealing can be conducted on the sleeve,the control of grouting amount and accurate positioning of the reinforcement can be achieved, and the connection quality of the sleeve is effectively guaranteed.

This invention provides a circuit expansion method characterizing that a signal connecting device is set on the shell of a containing circuit for transferring signals and/or inputting supply and a signal connecting device matched to it is set on the expnding shell of a containing expanding circuit correspondingly and the devices are connected with circuits in their shells separately, the circuits are connected to each other via the connecting devices and transmit signals or supplies and a locating device and the connecting device are set on the two shells correspondingly to be fixed and connected by the devices.

The invention relates to a shakeproof lift-preventing anti-bending preformed pile and a manufacturing process of the preformed pile. The preformed pile is characterized by comprising a plurality of prestress main bars, concrete, end plates on both sides and circular truncated cones matched with the prestress main bars, wherein the prestress main bars are uniformly arranged in the preformed pile, and adjacent prestress main bars encircle a circle through stirrups. The concrete is filled around the prestress main bars and the stirrups to form the preformed pile. The end plates are provided with through holes threaded with the prestress main bars which pass through the through holes on the end plates and are matched and connected with the circular truncated cones arranged on the other sides of the end plates. The invention provides the novel preformed pile and the manufacturing process thereof. Demands such as connection and piling of piles are realized through special connectors. The preformed pile has the advantages that the performed pile is simple in structure, convenient to operate and quick to construct, and the preformed piles can be firmly and accurately connected, so that the work efficiency is greatly improved, and the performed pile is labor-saving and the like.

The invention discloses a domestic appliance switch. The domestic appliance switch comprises a box body, a handle sliding channel, a switch sliding groove, connecting pieces, connecting rings, a connector, inserting grooves, an insulating rubber shell, a connecting groove, a metal conductor, a spring and a control handle; the domestic appliance switch is characterized in that the handle sliding channel is formed in the outer wall of the front surface of the box body; the cylindrical switch sliding groove is formed in the box body; three connecting rings are arranged on the upper part of the inner wall of the switch sliding groove at equal spacings; the insulating rubber shell is arranged at the bottom of the switch sliding groove; the connecting rings are arranged in the insulating rubbershell; the connecting rings are connected with the connector through the connecting pieces; the connecting rings and the connecting pieces are integrally formed; the connecting rings and the connecting pieces are molten and casted in the box body; and inserting grooves are formed in the upper ends of the connecting pieces at the upper part of the switch sliding groove at equal spacings. The domestic appliance switch is convenient to operate and capable of improving equipment safety and preventing a user electric shock safety accident effectively.

The invention relates to the technical field of tractor devices, in particular to a tractor device for agricultural machinery manufacturing. The tractor device comprises a tractor body; a positioning mechanism which is fixedly connected with the tractor body; a control mechanism which is arranged on the outer side of the positioning mechanism and is connected with the tractor body; and an adsorption mechanism which is connected with the control mechanism, wherein the adsorption mechanism comprises an adsorption assembly; a connecting assembly which is arranged between the adsorption assembly and the control mechanism; a transmission assembly which is arranged between the connecting assembly and the control mechanism, the positioning mechanism and the adsorption mechanism are arranged, and the control mechanism is used for driving and connecting the positioning mechanism and the adsorption mechanism, so that the device not only can realize accurate fixation between the agricultural machinery body and the tractor body, and the connection reliability of the two parts is greatly improved.

The invention provides a pit structure mounting method which comprises the following steps: supplying a second upright column, and embedding the second upright column into the bottom of a foundation pit; supplying a bottom plate, and arranging the bottom plate at the bottom of the foundation pit to cover the second upright column; supplying a first upright column, enabling the first upright column to penetrate through the bottom plate, and inserting the first upright column into the second upright column; supplying a supporting plate, and horizontally arranging the supporting plate at the top end of the first upright column; fixedly arranging a pit bearing platform on the top of the supporting plate; and supplying a connecting mechanism, and fixedly connecting the connecting mechanism with the top of the pit bearing platform. When the pit structure mounting method is used for excavating the foundation pit, a fixing mechanism is arranged in a reserved space at the lower part of the pit bearing platform, and the pit bearing platform is supported by the supporting plate, so that the lower part of the pit bearing platform is effectively supported, steadiness of the pit structure mounting method is guaranteed, the pit is prevented from collapsing, the safety hidden dangers are eliminated and the like.

The invention provides a process for welding a bent box type. The process for welding the bent box type comprises the following steps: S1, groove preparation: forming grooves in a box body wall plate and a part plate; S2, part plate assembling: placing a flange plate on an assembling jig frame, then assembling webs on two sides of the flange plate, finally, assembling an inner partition plate in the middle of the flange plate, to complete the part plate assembling action; S3, assembling an electroslag welding holding strip; S4, performing welding for the first time; S5, performing welding for the second time; S6, assembling a cover plate; S7, forming electroslag welding holes; S8, performing welding for the third time; and S9, performing ultrasonic acceptance inspection for a weld joint. According to the process, stable assembly of the bending box type is achieved through assembly of all the structures, then all the structures are stably welded together through electroslag welding operation, and accurate and stable connection between a partition plate and the flange plate when the angle between the partition plate and the flange plate is not 90 degrees is achieved.

A projecting connecting portion 32 which is fitted to a socket S10 and a valve seat 33 are provided in a plug main body 31 of a plug P10. The valve main body 31 having a valve head 35 which is urged to the valve seat 33 for sealing is provided in the plug main body 31 and the projecting connecting portion 32. Breaking starting portions 71 and 72 are provided in at least a part of the projecting connecting portion 32 and/or the valve stem 35b. A position at which breaking occurs when an excessive force exceeding a normal range of use is applied is set at a predetermined position whereby, when breakage occurs, the sealed state between the valve seat 33 and the valve head 35a can be maintained.

The invention discloses a connecting structure for a short joint and used for a fuel cell system, relates to the technical field of sealed connecting structures of vehicle fuel cell systems, and solves the problems of low fastening degree and poor durability in the prior art. The connecting structure comprises a first connector and a second connector, and further comprises a sealing connector, thesealing connector comprises an inner sleeve and an outer sleeve, a plug-in slot is formed between the inner sleeve and the outer sleeve, the first connector is in inserted connection within the innersleeve, the second connector is in inserted connection within the plug-in slot, and a locking piece is arranged on the outer side of the sealing connector. The connecting structure is reasonable in structure and reliable in connection, the two joints can be firmly connected, the fastening degree is high, the durability and the sealing performance are high, and the possible aging problem of glue after using of the glue is avoided.

The invention discloses an assembling process of a light segment prefabricated assembly bent cap, which belongs to the technical field of bent cap construction, and comprises the following steps of: mounting a prefabricated pier top segment on a pier column on a construction site by using a hoisting machine, respectively smearing sealant on the connecting end surfaces of a prefabricated standard segment, an end segment and the pier top segment, and sealing the prefabricated standard segment, the end segment and the pier top segment; in the transverse extending direction of the bent cap, at least one standard section is sequentially spliced and connected to the side end face of the pier top section in a cantilever mode through a hoisting machine, and the transverse channel communicates with a hollow cavity channel of the standard section; splicing and connecting an end section on a standard section which is connected with the side end of the pier top section along a transverse cantilever of the bent cap by utilizing a hoisting mechanical cantilever; and after the bent cap is assembled into a whole, arranging a plurality of prestressed tendons in the bent cap in a penetrating mode in the transverse stretching direction for fastening and tensioning. According to the assembling process, the light prefabricated sections are adopted, a large number of supporting frames and formworks do not need to be adopted, and the weight of each section and dependence on heavy machinery are reduced.

The invention discloses a steel structure connection process detection and correction method and system, and the method comprises the steps: obtaining steel structure installation information, which comprises steel structure frame information and steel structure connection information; calculating the parallelism and perpendicularity of each frame of the steel structure according to the frame information of the steel structure; according to the parallelism of each frame of the steel structure and/or the perpendicularity of each frame of the steel structure, judging and correcting whether the steel structure frame is abnormal or not; calculating a steel structure connection position accuracy value and a steel structure connection symmetry value according to the steel structure connection information; and judging whether the steel structure connection is abnormal or not according to the steel structure connection position accuracy value and/or the steel structure connection symmetry value, and correcting. The problem of how to detect and correct whether the relative position between the steel structure frames in the steel structure connection process is abnormal or not and whether the steel structure connection position is abnormal or not is solved.