16results about How to "Increase fit area" patented technology

The utility model discloses a kind of rotary mechanisms, it is installed in shell, comprising: connecting rod is rotated relative to shell;Rotary shaft is equipped with driving block;Rotary member is rotated with rotary shaft cooperation, rotary member is equipped with driving rib and driving groove, one end of connecting rod is located on the rotation track of driving rib;Energy storage component is connected with rotary member;Output member is rotated relative to shell, output member is equipped with cooperation part, recess and protrusion, cooperation part is cooperated with driving block, protrusion is cooperated with driving groove, recess is located on the movement track of connecting rod;Adopt this structure, through the cooperation between rotary member, output member, connecting rod, form a linkage cooperation effect, in the case of guaranteeing main contact fast split (main spring after passing through dead point, main circuit starts to break) through the transmission of connecting rod Angle break (angle increases to 90 ° or more Angle);Connecting rod self-reset, in the process of rotating from break state to close state, connecting rod can self-reset.

The utility model relates to the technical field of energy batteries, and discloses a battery and power equipment, which comprises a cover plate, a lower insulating part, a stop block and a flexible connecting piece, the cover plate is provided with an explosion-proof valve, the lower insulating part is arranged on the inner surface of the cover plate, the lower insulating part is provided with a convex hull extending far away from the cover plate, a mounting groove is formed in the convex hull, the stop block is arranged in the mounting groove, and the flexible connecting piece is arranged in the mounting groove. The stop block is suitable for being connected between the cover plate and the pole group in an abutting mode so that an exhaust gap can exist between the anti-explosion valve and the pole group, one end of the flexible connecting piece is connected with the cover plate, and the other end of the flexible connecting piece is connected with the stop block. When thermal runaway occurs, the pole group and the cover plate can be blocked through the stop block, so that an exhaust gap always exists between the anti-explosion valve and the pole group, the anti-explosion valve is prevented from being blocked, the pressure of the battery is released in time, safety accidents such as fire, explosion and the like are avoided, and the flexible connecting piece can prevent the stop block from shifting in the battery and also can absorb shock and buffer; and the collision damage probability of the pole group is reduced.

The transmission assembly of the linear lifting device comprises a lead screw, a spline sleeve and a hollow hollow shaft arranged on the outer side of the lead screw in a sleeved mode, the spline sleeve is arranged on the outer side of the lead screw in a sleeved mode and rotates synchronously with the lead screw, the spline sleeve is connected with the inner wall of the hollow hollow shaft in a circumferential relative fixing and axial relative moving mode, and the spline sleeve is composed of two half sleeve bodies. The two half sleeve bodies are folded in the radial direction of the lead screw to form a spline sleeve, one of the inner wall of each half sleeve body and the peripheral side of the lead screw is provided with a positioning protrusion, the other one is provided with a positioning groove, and the positioning protrusions and the positioning grooves are matched in a radial inserting mode so that the half sleeve bodies can be axially fixed relative to the lead screw. The hollow shaft sleeves the spline housing and is used for limiting the positioning protrusions from being separated from the positioning grooves. According to the transmission assembly, the assembly process is simplified, and the integrity and the structural strength of the lead screw are guaranteed; the two half sleeve bodies can be directly folded or separated in the radial direction, and disassembly and assembly are convenient. In addition, the utility model further discloses a linear lifting device provided with the transmission assembly.

The transmission assembly of the linear lifting device comprises a lead screw, a spline housing and a hollow hollow shaft arranged on the outer side of the lead screw in a sleeved mode, the spline housing is fixedly arranged on the outer side of the lead screw in a sleeved mode, and the spline housing is connected with the inner wall of the hollow hollow shaft in a circumferential relative fixing and axial relative moving mode. The spline sleeve comprises two half sleeve bodies and a connecting piece, the two half sleeve bodies are folded in the radial direction of the lead screw and then connected through the connecting piece to be kept in a folded state, one of the inner wall of each half sleeve body and the peripheral side of the lead screw is provided with a positioning protrusion, and the other one of the inner wall of each half sleeve body and the peripheral side of the lead screw is provided with a positioning groove. The positioning protrusions and the positioning grooves are matched in a radial inserting mode so that the half sleeve bodies can be axially fixed relative to the lead screw. In addition, the utility model further discloses a linear lifting device provided with the transmission assembly.

The utility model relates to the technical field of machine manufacturing, in particular to an interference fit five-axis machining accessory which comprises an assembling base, a rotating table is fixedly installed on the assembling base, a rotating base is installed on the rotating table, and a driving device used for driving the rotating base is installed on one side of the rotating table. A plurality of inserting grooves are formed in the upper surface of the rotating seat, and inserting holes are formed in the upper surface of the rotating seat between every two adjacent inserting grooves. According to the utility model, the defects in the prior art are overcome, the insertion rod is forcibly pressed into the insertion hole in the assembling process, so that the insertion rod and the insertion hole generate interference magnitude, tight connection is realized, the inner wall of the insertion hole is provided with the annular groove, the corresponding position of the insertion rod is provided with the annular boss matched with the annular groove, and the annular boss is embedded into the annular groove in the assembling process; the matching area is increased, and the connection stability and reliability are improved.

The utility model relates to the technical field of automobile accessories, in particular to an automobile oil way connecting pipe. According to the technical scheme, the pipe fitting comprises a cylindrical pipe fitting main body structure, and a connecting stable matching column is arranged at the end of the pipe fitting main body structure and is characterized in that the connecting stable matching column is machined in an extrusion production mode; a concave sealing combination safety groove with the arc-shaped section is formed in the edge of the outer side of the connecting stable matching column, a hollow main body conveying channel is formed in the pipe fitting main body structure, and heat dissipation safety and stability grooves which are evenly distributed in the circumferential direction are formed in the side, close to the connecting stable matching column, of the interior of the main body conveying channel. The sealing structure has the advantages that the sealing structure is more convenient to install, the sealing structure can be matched with a sealing ring accurately by arranging the sealing combined safety groove with the arc-shaped section, a larger matching area and limiting matching during installation can be provided for the sealing ring, and better sealing performance during connection is guaranteed.

The utility model relates to the technical field of material forming, and discloses a composite material structural part forming die which comprises a lower die plate and an upper die plate, a first fixing die block is attached to one side of the upper surface of the lower die plate, and a second fixing die block is attached to the upper surface of the lower die plate. According to the composite material structural part forming mold, the lower mold plate, the upper mold plate, the first fixing mold block, the second fixing mold block, the lower molded surface mold block, the upper molded surface mold block, the arc-shaped mold block, the first pressurizing mold block, the second pressurizing mold block and the third pressurizing mold block are assembled, and a mold pressing device for machining and forming a composite material is obtained; meanwhile, one end of the whole body is of an arc structure and a connecting pipe type structure, a main body is of a foam sandwich structure, the weight can be obviously reduced, the solid width of one side face is increased, the matching area is increased, the connecting strength is guaranteed, the precision degree of a formed material is guaranteed, and the forming rate of the material is increased; meanwhile, the whole device is of a detachable structure, and personnel can conduct distributed operation conveniently.

The invention provides an integrated duplex countershaft gear structure and an assembly body of the integrated duplex countershaft gear structure and a countershaft, and belongs to the technical field of gearbox accessories. The assembly body of the integrated duplex countershaft gear structure and the countershaft comprises the countershaft and the integrated duplex countershaft gear structure; an integrated duplex countershaft gear structure comprises two countershaft gears and a gear spacer bush connected with the two countershaft gears. Countershaft assembly holes are formed in the centers of the countershaft gear and the gear spacer bush; the auxiliary shaft assembly hole is a conical hole; the taper of the auxiliary shaft is matched with the taper of the auxiliary shaft assembly hole, and the auxiliary shaft is in interference fit with the auxiliary shaft assembly hole. It can be ensured that the countershaft gear works reliably and does not rotate, the assembly requirement is met, and the part cost is reduced.

The present application relates to the field of medical devices, in particular to an anchoring system and a forming device thereof. In an embodiment of the present application, a limiting rod is arranged on the anchoring device, which limiting rod extends outwardly with the connecting rod as the center in a natural state, so that the blocking piece can prevent the anchoring needle from being screwed into the tissue excessively after implantation, which enables the operator to easily determine the implantation condition of the anchoring needle by operating the rotating force even in an invisible condition, and the blocking piece can press the anchoring area of the implanted device like a "washer" to provide a lateral stabilizing force, and when used for ring contraction, the blocking piece can prevent the fabric layer from being separated from the anchoring needle during the contraction process.

Embodiments of the present application provide a semiconductor device, comprising: a substrate; a plurality of floating gate structures disposed on a first region of the substrate and spaced apart from each other; a dielectric layer continuously covering sidewalls and top surfaces of the plurality of floating gate structures; a control gate layer above the dielectric layer, the control gate layer covering the plurality of floating gate structures and the dielectric layer, the control gate layer extending into spaces between the plurality of floating gate structures; a floating gate layer disposed on a second region of the substrate different from the first region and connected to each of the plurality of floating gate structures; and a plurality of conductive vias connected to an active region of the substrate and the control gate layer in the first region, respectively, and connected to the floating gate layer in the second region. The present application aims to at least increase the cooperation area between the control gate layer and the plurality of floating gate structures, thereby increasing the capacitance, and additionally, the process requirement for forming the conductive vias is not strict.

This utility model provides an electrical connector assembly (100), including a first component (1), a second component (2), and a third component (3). A generally flat plate (12) is provided at one end of the first component. A plurality of electrical contacts (14, 15) are provided on the surface of the plate, and a plurality of electrical contacts (22, 32) are provided on the surfaces of the second component and the third component. The plurality of electrical contacts (14, 15) provided on the surface of the plate are respectively provided on two surfaces of the plate opposite in the thickness direction. The second component and the third component abut against the two surfaces of the plate opposite in the thickness direction, such that the plurality of electrical contacts (22) on the surface of the second component respectively contact the corresponding electrical contacts (14) on one surface of the plate, and the plurality of electrical contacts (32) on the surface of the third component respectively contact the corresponding electrical contacts (15) on the other surface of the plate.

The invention discloses a hydraulically-acting valve seat puller and a method for using the same, and relates to the technical field of fracturing pumps, and solves the technical problems of abnormal matching between a drawing rod and a drawing head, thread fracture and bonding. The invention comprises a valve seat body, a drawing head and a drawing rod, one end of the drawing rod is connected to the inner thread of the drawing head, a barb is formed at the lower end of the drawing head, and the upper surface of the barb matches with the lower surface of the valve seat body. The invention comprises a limit block and a locking ring, the limit block is located at the upper end of the drawing head, the limit block is connected to the upper end of the drawing head by screws, the locking ring is located at the outer wall of the drawing head, the inner wall of the locking ring contacts and matches with the outer wall of the drawing head, an inner step is provided on the lower end face of the limit block, the inner step is formed from the geometric center of the limit block toward the radial outward direction, and the inner step presses the upper end of the drawing head; it is used for good matching between the drawing rod and the drawing head, and the invention improves the operation efficiency of the equipment and has the advantages of good operation of the equipment.

The present invention discloses a flexible connection structure of a composite material thin-walled circular tube, comprising a plurality of circular tubes and a metal ring for connecting adjacent circular tubes; the outer edge of the metal ring extends outward to form a shoulder, the wall thickness of the shoulder is greater than the wall thickness of the metal ring; a stopper is provided on the circular tube, the metal ring is fitted on the stopper of the circular tube by gluing the shoulder, and a composite material layer is wound around the connection between the circular tube and the metal ring. The present invention solves the problems of low connection strength and poor structural sealing of the traditional connection structure, and at the same time has good assembly processability, and can avoid damage to the metal ring during the assembly process.

The utility model relates to an electric tool. Comprises: a gearbox for accommodating a reduction gear mechanism; one end of the output shaft is inserted into the electric tool gearbox, and the other end of the output shaft is used for assembling a tool head; the at least two bearings and the at least two electric tool bearings are the same in specification and sequentially and axially abut against one another, inner rings of the electric tool bearings are connected to the periphery of the electric tool output shaft in a sleeving mode, and the peripheries of the electric tool bearings are supported on the electric tool gearbox; the torsion adjusting sleeve extends in the axial direction of the electric tool output shaft and is arranged on the periphery of the electric tool gear box in a sleeving mode, one end of the torsion adjusting sleeve is provided with a first abutting part extending in the radial direction, and the electric tool gear box is provided with a second abutting part; the at least two electric tool bearings are limited between the first abutting part and the second abutting part of the electric tool. According to the technical scheme, the development of the electric tool in the light weight and portability direction is facilitated, the cost is reduced, and the jumping of the output shaft can be reduced.

The invention discloses a rapid sample changing device for a low-temperature cavity, and relates to the technical field of low-temperature detection equipment.The rapid sample changing device is characterized in that a heat conduction base is arranged in a detection cavity, the detection cavity is provided with a sample transferring channel, a sample bearing piece can carry a sample to enter and exit from the detection cavity through the sample transferring channel, the sample bearing piece comprises a sample support and a mounting base, and the mounting base is provided with a second connecting part; the mounting seat rotates along the first direction relative to the heat conducting seat, the first connecting part is matched with the second connecting part, so that the mounting seat and the heat conducting seat are locked, the mounting seat rotates along the second direction relative to the heat conducting seat, the first connecting part is separated from the second connecting part, and the mounting seat and the heat conducting seat are unlocked; the valve is used for opening or closing the sample transfer channel. According to the scheme, the problem of low efficiency caused by limitation of an operation space for replacing a sample is reduced, the detection cavity and / or the sample bearing piece do not need to be heated when the sample is taken out, the detection cavity does not need to be cooled when a new sample is put in, the sample replacement time is effectively shortened, and the sample replacement efficiency is effectively improved.

The utility model relates to the field of automobile safety products discloses a kind of reinforced connection structure and child safety seat.It includes base module and rotating module, base module is suitable for being connected with automobile seat, rotating module is located at the top of base module, and is rotatably connected with base module;Fixedly equipped with carousel fixed frame on base module, fixedly equipped with reinforcing plate on rotating module, carousel fixed frame is above reinforcing plate, carousel fixed frame is suitable for blocking the overturning of reinforcing plate relative to base module occurs.The carousel fixed frame of the utility model can play the blocking effect when reinforcing plate overturns, meanwhile bears part of overturning force, disperses overturning force, avoids that some place is relatively concentrated under stress, strengthens the stability after the connection of base module and rotating module, improves strength, so that rotating module is not prone to overturning and warping, improves the comfort of riding;The strength and stability after installation of carousel fixing piece are strengthened;The strength after cooperation of carousel fixed frame and reinforcing plate is higher.