126results about How to "Make sure it fits" patented technology

The invention relates to a double seat valve, which is capable of cleaning the seat and which is improved compared to that of the prior art, whereby a delivery as free from turbulence as possible of the seat cleaning flow into and out of the leakage cavity is ensured, and a pressure-increasing direct action upon the seat areas is reliably prevented.; This is achieved in that: the second closing element (4), when in its closed position, rests with a stopping surface (4f), which is placed on a face of its cylindrical projection (4*) and which, together with the peripheral wall (4c, 4h), forms a second wraparound edge (U2), upon the interface (2e, 2e*), and to be precise, directly upon the first seating (2a) in an adjoining manner; the peripheral wall (4c), at its end facing away from the first closing element (3), merges into a rotationally symmetric reversing surface (4d) (starting point of contour K)), and this reversing surface (4d) leads in a face (4e) of the recess (4b) oriented, in essence, perpendicular to the longitudinal axis of the second closing element (4) (leading point of contour K)), and; ; when viewing the meridian section, the reversing surface (4b) has a contour (K) with a bend-free curve, a direction vector in the leading point of the reversing surface (4d) points into a discharge borehole (3d, 3d*) centrally provided in the first closing element (3) without colliding with the first closing element (3) in the vicinity of its areas bordering the leakage cavity (5) and forming dynamic pressure.

The invention discloses a model correcting method based on a defective modal structure. The model correcting method first formats initial data, and the initial data of a required format is obtained through an adjustment of freedom degree numbers and a real number conversion of a complex mode. The extension of defective modal data is achieved by conducting matrix QR decomposition on model data to be corrected after the formatting of the initial data, obtaining a matrix equation of the defective modal data and utilizing least square method to solve the matrix equation. The confirming of corrected parameters is achieved by building a matrix equation of corrected parameters through extended modal data and utilizing a structure preserving iterative algorithm to solve the matrix equation. The corrected model is a finite element model calculated and corrected by the corrected parameters which are obtained through the structure preserving iterative algorithm and non-overflowing revising format. The model correcting method based on the defective modal structure can not only deal with the difficulty that the freedom degree of the modal data is not complete in actual measurement, thus avoiding a modal unfolding process or a model reduction process, but also keep the corrected model in a primary symmetrical structure and guarantee that the model which does not need correction is kept the same before and after the model correcting.

The invention belongs to the technical field of electric car battery production and processing, and particularly relates to an erecting welding tool for a soft package battery module. The erecting welding tool for a soft package battery module comprises an overturn frame, a support and a base, wherein the overturn frame is rotationally arranged on the support along the horizontal axis, the support is installed on the base, a limiting device is arranged on the support, and the overturn frame can be locked to stay in the horizontal state or the vertical state by the limiting device. The overturn frame comprises a rectangular frame body and two end plates, wherein the rectangular frame body is formed by a bottom plate, two side plates and a top plate in an enclosure manner, each end plate is arranged at one end of the rectangular frame body, the distance between the top plate and the bottom plate is set to be adjustable, at least the end plate on one side is detachably connected with the rectangular frame body, a chamber for containing a battery module is formed inside the overturn frame, and notches for exposing the welding positions of the battery module are formed in each of the two end plates. With the erecting welding tool for a soft package battery module, the position of the battery module can be fixed, it is guaranteed that all the soft package batteries are aligned accurately, and meanwhile, the shell of the battery module can be tightly clamped, it is guaranteed the batteries inside the shell of the battery module are pressed tightly, and the accuracy of welding is guaranteed.

The invention aims to provide a printed matter checking device for preventing the single sheet from jiggling while photographing for checking the printed matter. In the device of the invention, a photographing unit is equipped for photographing the checked surface of the printed matter, a first blowing unit 4 for blowing air from the upper front direction of the conveying and a second blowing unit 5 for blowing air from the upper rear direction of the conveying are disposed on the photographed position, and an air absorbing unit 6 is disposed upon the checking position between the two blowing units for absorbing at least the air from the first unit 4 and the second unit 5.

The invention provides a nail-head component of a hemorrhoid anastomat, which at least comprises a nail tube and a nail anvil, wherein the nail tube comprises a housing; the rear end of the housing is used for connecting a hemorrhoid anastomat body; a rise stopping tube is arranged in the housing; the nail anvil comprises a nail anvil ring and a nail anvil shaft which are fixed and connected to each other; the through-hole of the rise stopping tube comprises at least two planes arranged along the axis of the rise stopping tube; guide grooves are respectively arranged on the planes; and at least two planes are correspondingly arranged on the nail anvil shaft, and guide ribs are respectively arranged on the planes in a way that the guide ribs can slide in the guide groove. The invention has the following beneficial effects that: by arranging two symmetrical guide ribs, the nail anvil shaft and the rise stopping tube are in finer fit, thereby ensuring the fit of the nail tube and the nail anvil and further ensuring the effect of anastomosis.

The invention discloses a deepwater cofferdam slot sinking construction method, which is characterized by comprising the following processes in turn: before cofferdam wall sinking construction, forming a slot at the design position of the cofferdam wall on a riverbed by using slotting equipment; sinking the cofferdam wall into the formed slot; removing soil on the riverbed on the inner side of the cofferdam wall; and casting construction bottom sealing concrete, and forming a cofferdam after the bottom sealing concrete reaches a strength. The slotting operation is performed at the design position on the riverbed by using the slotting equipment and then the cofferdam can be smoothly put into the slot so as to prevent the over hard riverbed from blocking the sinking of the cofferdam and ensure that the position of the cofferdam is matched with the design position.

The invention relates to a double seat valve, which is capable of cleaning the seat and which is improved compared to that of the prior art, whereby a delivery as free from turbulence as possible of the seat cleaning flow into and out of the leakage cavity is ensured, and a pressure-increasing direct action upon the seat areas is reliably prevented. This is achieved in that: the second closing element (4), when in its closed position, rests with a stopping surface (4e), which is placed on a face of its cylindrical projection (4*), upon the interface (2e; 2e*) and, to be precise, directly upon the first seating (2a, 2g) in an adjoining manner; in the face of the second cylindrical projection (4*), a central recess (4d) is provided which, radially outside, starts (starting point of contour (K)) with a rotationally symmetric reversing surface (4b) and is delimited on the face by a face (4c) oriented, in essence, essentially perpendicular to the longitudinal axis of the second closing element (4), the reversing surface (4b) leading into the face (4c) (leading point of contour (K)) ; the reversing surface (4b) and the stopping surface (4e) form a second wraparound edge (U2) that, when the second closing element (4) is closed, directly abuts against a first end section (2g) of the first seating (2a); when viewing the meridian section, the reversing surface (4b) has a contour (K) with a bend-free curve, a direction vector in the leading point of the reversing surface (4b) points into a discharge borehole (3d) centrally provided in the first closing element (3) without colliding with the first closing element (3) in the vicinity of its areas bordering the leakage cavity (5) or of the middle seal (8; 8*) and forming dynamic pressure, and a front-side delimitation of the first closing element (3) facing the leakage cavity (5) is at an axial safe distance (x) from the direction vector on an outlet point of the interface (2e) into the first end section (2g).

The invention relates to a hardware product hemming stamping die. The hardware product hemming stamping die comprises a workbench, two attaching devices, a limiting device, an ejection device, a U-shaped frame, a stamping device and four clamping devices, wherein the attaching devices are symmetrically arranged on the upper end surface of the workbench in a bilateral symmetry mode, the two clamping devices are connected by the limiting device, the ejection device is arranged behind the lower end of the workbench, the clamping devices are symmetrically arranged on the left side and the right side of the workbench, the U-shaped frame is installed at the front end of the right side of the workbench, and the stamping device is installed on the lower end surface of the U-shaped frame. The hardware product hemming stamping die can solve the problems that when an existing iron sheet is punched, the iron sheet can be directly placed into a clamping groove, and a fixing device is not arranged in the clamping groove, and during stamping, wrinkles can be generated between the iron sheets in the punching process, the iron sheet can also shake, stamping deviation is avoided, and hemming is noteasy to form, and meanwhile, an existing external rigid clamping device and an iron sheet contact part are easy to deform.

The invention relates to a feeder, particularly to a novel feeder, and provides the novel feeder which can accurately enable a working hopper to be right below a conical funnel, facilitates dredging of the conical funnel, and is aimed at solving the technical problem. The novel feeder provided to solve the technical problem comprises a hopper lifting feeding machine, a mounting plate, slide rails, sliding blocks, first springs, electric wheels, steel wire ropes, a movable plate, a connecting rod, travel switches, a placing bucket, and the like, wherein the mounting plate is in bolted connection with the bottom of the hopper lifting feeding machine; a through hole is formed in the mounting plate; the slide rails are in bolted connection with the front and back walls in the mounting plate; and the travel switches are in screw connection with the right sides of the inner walls of the slide rails. According to the novel feeder designed by the invention, the placing bucket and the hopper lifting feeding machine are combined, and the placing bucket can move left and right.

The invention relates to a lockhole-free full-automatic intelligent door. The lockhole-free full-automatic intelligent door comprises a door body, an intelligent lock of which opening and closing are controlled electrically, an information collection device, an electric door closer and a control module. The information collection device and the intelligent lock are embedded into the door body. The control module is electrically connected with an electric control part of the electric closer and an electric control part of the intelligent lock. The lockhole-free full-automatic intelligent door further comprises a human body sensor and a door closing sensing device; the human body sensor is arranged on the door body and electrically connected with the control module; and the door closing sensing device is connected with the control module and used for sensing whether the door body and a door frame are well combined. The lockhole-free full-automatic intelligent door has the beneficial effects that the safety is effectively improved, the effect that the outside of the door is free of a lockhole can be achieved thoroughly, meanwhile, after the electric door closer is additionally arranged, opening and closing of the door are both controlled automatically and conveniently, and the intelligent degree is high.

The invention provides a slide-to-position method for a large earth-covering bullet pot. The method comprises the following steps: S1, according to a planning design of a sand bed, calculating the fall between the elevation of a field installed and welded region and the elevation of the bullet pot in position on the sand bed, and designing the height, to which the bullet pot needs to be jacked; S2, performing a jacking operation: jacking the earth-covering bullet pot to the field installed and welded region to the designed height by using a jacking bracket; S3, sliding the bracket to position: after the earth-covering bullet pot is jacked to the designed height, transferring the bullet pot to a slide bracket on a slide rail, and jacking the slide bracket till the elevation of the bullet pot exceed the minimum passage height of the sand bed; S4, horizontally pushing and sliding: pushing the bullet pot to the corresponding designed position on the sand bed by using a pushing device; and S5, enabling earth-covering bullet pot to be in position: moving the slide bracket in the bottom of the bullet pot out, wherein the bullet pot fully falls to the corresponding position of the sand bed. The method provided by the invention can mount the large earth-covering bullet pot in position, and is relatively low in cost and high in using efficiency.

The invention provides an image reading method used for dynamically configuring a decoding parameter and a device. The method and the device are applied to an electronic device. The electronic device comprises a camera and a display. When the target electronic device is used to decode a current dot-matrix two-dimensional code, a preset decoding parameter which matches the target electronic device is acquired to configure the target electronic device. The decoding parameter is suitable for the target electronic device. When the configured target electronic device decodes the current dot-matrix two-dimensional code, the code point of the dot-matrix two-dimensional code in an acquired preview image is appropriate. The success rate of the target electronic device for current dot-matrix two-dimensional code decoding is ensured.

The invention relates to a screw drill motor stator manufacturing and forming machining machine and machining method. The screw drill motor stator manufacturing and forming machining machine comprises a bottom plate, a placing device, a driving device and a grinding device, wherein the placing device and the driving device are sequentially installed at the upper end of the bottom plate from left to right, and the portion, close to the left end, of the outer surface of the driving device is rotatably connected with the grinding device through a bearing. By means of the screw drill motor stator manufacturing and forming machining machine and machining method, the problems that when an existing machine conducts surface grinding on the inner walls of screw drill motor stators, inner wall grinding can only be conducted on the stators of the same specification generally, corresponding adjustment cannot be conducted within a certain range according to the diameters of the inner walls of the stators, thus the inner walls of the stators of different sizes cannot be ground, the mechanical use flexibility is reduced, corresponding adjustment cannot be conducted according to the radians of arc-shaped protrusions on the inner walls of the stators, thus grinding effects are reduced, moreover, a grinding mechanism cannot be replaced, thus the grinding effects of the grinding machine after long-term use are reduced, and the like can be solved.

The invention discloses a sliding vane type three-way electromagnetic valve. The sliding vane type three-way electromagnetic valve comprises a valve body, a sealing base, a valve element assembly andan electromagnetic driving assembly, wherein the valve body is provided with a valve cavity, an inlet, a first outlet and a second outlet; the sealing base is provided with a first valve port communicating with the first outlet and a second valve port communicating with the second outlet, the valve element assembly comprises a valve element, the valve element comprises a first slide piece and an elastic sealing element, and the face, facing the first sliding piece, of the elastic sealing element is provided with a first protruding part and a second protruding part; the first sliding piece is provided with a first protruding part penetrating hole and a second protruding part penetrating hole, and each protruding part penetrates through the corresponding protruding part penetrating hole correspondingly, and abuts against the sealing base; when the valve element assembly is in a first position, the second protruding part is used for blocking a second valve port, and the inlet communicateswith the first outlet through the first valve port; when the valve element assembly is in a second position, the first protruding part is used for blocking the first valve port, the inlet communicates with the second outlet through the second valve port. According to the valve, the closed outlet can be ensured to obtain a reliable fluid seal.

The invention relates to an apparatus and to a process for cohesively joining two plates (1 and 2) having differing melting points, one of which plates, the end plate (1), comprises a light metal material, in particular aluminium material, and the other of which plates, the connecting plate (2), comprises an iron and/or titanium material, wherein a coating (9) preferably on the basis of zinc or aluminium is provided at least partially on at least one of the abutting faces (3', 3'') of the abutting edge (3) of the connecting plate (2) which extend inclined with respect to one another, in which process both plates (1 and 2) are joined together by braze welding so as to abut against one another along their common joint using an additional material (5) on the basis of light metal, in particular on the basis of aluminium. In order to provide advantageous process conditions, the invention proposes that a recess (10) be made, before joining, in the abutting edge (4) of the end plate (1) for receiving at least part of the coated abutting edge (3) of the connecting plate (2), wherein, during joining, braze welding is carried out at least partially over a flank (11 or 12) of the recess (10) overlapping the coating (9) of the connecting plate part.

The invention relates to an automatic packing box forming machine and a forming method of the automatic packing box forming machine. The automatic packing box forming machine comprises a die assembly, a die lifting device and a die turning device. The die assemble comprises a movable die, a fixed die and auxiliary turning dies, wherein the movable die is arranged on the die lifting platform, the fixed die and the movable die are oppositely arranged, the auxiliary turning dies are arranged on the two sides of the fixed die respectively, and the auxiliary turning dies are connected with the die turning device. The die lifting device drives the movable die to press the end face, opposite to the movable die, of the fixed die. The die turning device makes the lateral sides, adjacent and parallel to the fixed die, of the auxiliary turning dies turn to press the side face of the movable die. The automatic packing box forming machine and the forming method can be used for manufacturing square packing boxes of different shapes and sizes, the automation degree of the production process can be improved, the production efficiency and the finished product rate can be increased, and the production cost can be reduced.

The invention relates to the technical field of western-style clothes making, and in particular to a two-time cutting process for a front piece of western-style clothes. The process comprises the following steps: (1) making a front piece fabric rough cutting sample; (2) making a lining rough cutting sample; (3) making a front piece fabric rough cutting sheet; (4) making a lining rough cutting sheet; (5) with the back side of the front piece fabric cutting sheet facing upwards and the side that an adhesive side is lined facing downwards, emptying empty lining of a front fly, a lapel, shoulder seams, muffs, side seams, a hem and a first dart in accordance with preset empty lining cutting openings and fish dart point eyes; (6) implementing natural flattening, and conducting binding via a binding machine; (7) after implementing binding, implementing natural flattening and promoting rebound; and (8) conducting secondary fine cutting via a fine cutting sample, so that a net front piece fabric sheet and a net lining sheet are obtained. With the application of the two-time cutting process provided by the invention, phenomenons that original cutting sheets can become shorter and become smaller easily, fish dart deformation can be caused, clothing sheets are not bilaterally symmetrical and the cutting sheets are not completely united with samples can be solved; the cutting sheets are united with the samples, so that the size of finished clothes can be guaranteed; and meanwhile, problems of the finished clothes that pockets are not flat and are not bilaterally symmetrical can be alsosolved; and uniform size can be guaranteed in various batches of the finished clothes.

The invention discloses a household raw fish slice cutter and belongs to the field of kitchen serviceable tools. The household raw fish slice cutter comprises a transparent cutter body, a blade, a gasket and a fixing device, wherein one end of the cutter body is bent upwards to form a curved surface; and the gasket is arranged between the cutter body and the blade. The curved surface of the cutter body is tightly close to fish so that a cutting edge can be in sufficient contact with the fish in a cutting process; the state of the fish is observed through the transparent cutter body; and finally, fish slices are cut according to the thickness of the gasket. The household raw fish slice cutter provided by the invention has a simple structure and low cost and is convenient and easy to use; and the large and complete fish slices with the thickness of about 1mm can be sliced, so that the household raw fish slice cutter is very suitable for household application.