84results about How to "Reduced chance of collapse" patented technology

The invention discloses a polyvinyl alcohol-polyurethane elastic buffing wheel and a preparation method of the polyvinyl alcohol-polyurethane elastic buffing wheel. The preparation method comprises the steps that firstly, polyvinyl alcohol is mixed with distilled water, and the mixture is dissolved for 20-30 minutes under the condition of 50-95 DEG C water bath and at the rotation speed of 400-600r/min to obtain a polyvinyl alcohol aqueous solution; then, the polyvinyl alcohol aqueous solution is heated up to 30-100 DEG C, grinding materials are firstly added into the polyvinyl alcohol aqueous solution, after the mixture of the grinding materials and the polyvinyl alcohol aqueous solution is stirred and mixed evenly at the rotation speed of 400-600r/min, polyurethane pre-polymers, catalysts and air hole generating agents are added, and all the components are stirred and mixed evenly at the rotation speed of 400-600r/min and react for 5-10min; solidification is conducted for 2-4h under the condition of 30-100 DEG C, and then the buffing wheel which is good in elasticity, good in water resistance, good in heat-dissipating performance and high in mechanical strength is obtained. The elastic buffing wheel is even in foam hole, good in abrasion resistance and grinding force, not prone to deforming or curling in humid environment and applicable to long-time grinding work.

The invention discloses a method for preparing a polyvinyl alcohol and polyurethane super absorbent sponge. The method includes mixing polyvinyl alcohol with distilled water at first, dissolving the polyvinyl alcohol for 20 to 30 minutes under the condition that the water bath temperature ranges from 50 DEG C to 95 DEG C and rotational speed ranges from 400r/min to 600r/min to obtain polyvinyl alcohol aqueous solution; and then heating the polyvinyl alcohol aqueous solution until the temperature of the polyvinyl alcohol aqueous solution ranges from 30 DEG C to 100 DEG C, adding water-based polyurethane prepolymer, catalysts and auxiliary foaming agents into the polyvinyl alcohol aqueous solution, stirring and uniformly mixing the mixture under the condition of rotational speed ranging from 400r/min to 600r/min, enabling the mixture to react for 5 minutes to 10 minutes, and solidifying the mixture for 2 to 4 hours at the temperature ranging from 30 DEG C to 100 DEG C to obtain the sponge with the water absorbent rate higher than 9.8. The water absorbent rate of the obtained sponge is increased to 10-20 times from the original 6-8 times of an existing polyvinyl acetal sponge, the water absorbing velocity of the sponge is increased to 8g/ming from the original 4g/ming, and the polyvinyl alcohol and polyurethane super absorbent sponge has a broad development prospect in fields of aquatic product processing, food, clinical medicine, water treatment and the like.

A two-stage lock assembly comprising a multi-element lock tab configured for disposition in a lateral structure of a lock device. The multi-element lock tab may include a body that includes an end on which a first element and a second element are disposed. The first element may extend from the body farther than the second element to enable the first element to be introduced into a receiver prior to the second element. The multi-element lock tab may be configurable in a disengaged configuration in which the first element and the second element are not positioned in a receiver, a first engaged configuration in which the first element is positioned in the receiver and the second element is not, and a second engaged configuration in which the first and the second elements are positioned in the receiver.

The invention relates to a single-floor masonry residential building steel-frame canopy guard structure and a construction method thereof. A single-floor masonry residential building is provided with an original roof truss, the bottom surface of the original roof truss is provided with a reinforced steel frame, the reinforced steel frame consists of at least two external transverse steel beams, two external longitudinal steel beams, four external steel columns and an external foundation, the external longitudinal steel beams are arranged on the inner side of an original longitudinal wall, the external transverse steel beams are arranged on the outer side of an original gable wall, the end part of each external longitudinal steel beam is lapped on and fixedly connected with the external transverse steel beam to collectively form a contour which is identical to the plane shape of the original structure, the external steel columns are closely attached to the original gable wall or the original longitudinal wall, the top end of the external steel column is supported on the end part of the external transverse steel beam, and the bottom end of the external steel column is supported on the external foundation. Due to the adoption of the single-floor masonry residential building steel-frame canopy guard structure, under the situation that the application function of the original structure is not influenced, the anti-seismic performance is improved, good economic benefit and social benefit can be realized, the single-floor masonry residential building steel-frame canopy guard structure can be widely used for reinforcing the masonry residential building structure and particularly for reinforcing a stone house or a brick house which does not have the supporting column.

The invention provides an infilled wall with build-in cross steel bars and a manufacturing method of the infilled wall, and belongs to the technical field of earthquake prevention and disaster reduction. The infilled wall is located in a frame structure and composed of energy dissipation strips, concrete blocks, a concrete frame, reserved steel tie bars and the cross steel bars. The concrete frame and the cross steel bars are manufactured according to common frames, and meanwhile the reserved steel tie bars are manufactured. The vertical energy dissipation strips are located on two sides of the frame infilled wall, and the energy dissipation strips not only prevent the frame structure from being damaged by the infilled wall and dissipate earthquake energy but also can make tight contact with frame columns and reduce the number of construction procedures. The cross steel bars enhance the shear-bearing capacity of the wall body, enhance overall performance of the wall body and improve energy-dissipating capacity. The infilled wall with the build-in cross steel bars makes full use of the energy-dissipating capacity of diagonal bracing portions and a masonry structure, light materials can be made of industrial waste, an ecological environmental protection effect is achieved, and the infilled wall is suitable for being used in the concrete frame structure and has wide application prospect.

The invention discloses a winding needle which is a columnar needle body made of an insulating rigid material. The winding needle is a columnar needle body made of an insulating rigid material, and the winding needle is wound in a diaphragm and a tab and is packaged into a battery shell along with a battery cell, so that the operation of pulling out a winding needle in the prior art is avoided, and the alignment degree of a wound battery cell is ensured, and the battery cell defect caused by the pulling-out of a silver winding needle in the existing technology is overcome. When the interior ofthe battery cell is short-circuited, the winding needle and a winding body ascend at the same time to press a safety valve on a battery cap, in order to realize rapid pressure relief and overcome thedefect that a center needle is separated from a battery cell due to gap. Heating is fast in the charging and discharging process, and due to winding tension, the pole pieces of the battery cell deform and extrude towards the inner ring of the battery cell, and the diaphragm looses and even collapses. Compared with the center needle, there is no gap between the winding needle and the diaphragm, the winding needle can well support the battery cell, and the looseness or collapse probability of the diaphragm is reduced. The invention further discloses a wound battery cell comprising the winding needle and a production process of the wound battery cell.

The invention relates to a filler wall with built-in crossed ladder reinforcing steel bars and a manufacture method of the filler wall. The filler wall is located in a framework structure and consists of energy dissipation strips, concrete blocks, a concrete framework, reserved rachel tendons, and a ladder reinforcing steel mesh inclined strut. During manufacture, according to the design and normal frameworks, the concrete framework and the inclined strut are manufactured, and simultaneously, the reserved rachel tendons are shaped through manufacture. The energy dissipation strips and the concrete blocks are used for construction, the reserved rachel tendons are completely arranged at the positions of reserved reinforcing steel bars of the concrete framework, by means of the vertical energy dissipation strips, the filler wall is prevented from destroying the framework structure in an earthquake and consuming earthquake energy, the filler wall can be closely contacted with framework columns, and construction processes are saved; by means of the crossed ladder reinforcing steel mesh inclined strut, shear capacity of a wall body is improved, integrality of the wall body is enhanced, and energy-dissipating capacity is improved; according to the filler wall with built-in crossed ladder reinforcing steel bars, energy consumption capacity of an inclined strut portion and a masonry structure are fully utilized, light materials can be manufactured from industrial waste, and a function of eco-environment protection is achieved.

The invention relates to the technical field of building earthquake-resistance, and provides a building earthquake-resistance structure. The structure comprises transverse dampers, longitudinal dampers and reinforcing nets; the transverse dampers are uniformly arranged between a building body and a foundation pit in a surrounding mode and used for consuming and absorbing the transverse swing energy of the building body, reducing the transverse swing amplitude of the building body, and reducing the breaking strength of earthquake transverse waves to the building body; the longitudinal dampers are arranged between the bottom of the building body and the foundation pit and used for absorbing the longitudinal vibration energy of the building body, reducing the longitudinal vibration amplitudeof the building body, and reducing the breaking strength of earthquake longitudinal waves to the building body; and the reinforcing nets are coated on the two sides of a wall of the building body andused for increasing the strength of the wall so as to prevent the brittle collapse of the wall. According to the structure, the transverse dampers and the longitudinal dampers are arranged between thebuilding body and the foundation pit, so that the energy of the earthquake transverse waves and the energy of the earthquake longitudinal waves are consumed and absorbed, the transverse vibration amplitude and the longitudinal vibration amplitude of the building body is reduced, the collapse probability of the building body is reduced, and the earthquake-resistance capacity is improved.

The present invention relates to a percutaneous guided bone reaming tool device and its method. It mainly includes a blunt point guide pin and a guide screw tube, one end of said guide screw tube is made into a flat cone portion, its external surface is equipped with a helical toothed section. Said blunt point guide pin can be passed through skin and inserted into a bone tissue, said guide screw tube can be covered into said blunt point guide pin, and said flat cone portion and said helical toothed section can be clutched in said bone tissue, so that a working tube whose tube diameter can be covered into said guide screw tube can be punctured into said bone tissue along said guide screw tube.

The invention provides a production process of an aluminum pad based on a polyimide matrix. The production process comprises the following steps of: depositing a polyimide layer on a semiconductor device and photoetching the polyimide layer to form a trench pattern; sequentially depositing an aluminum film layer and a dielectric hard mask layer on the semiconductor device, spin coating photoresist and photoetching the photoresist to form a trench pattern; carrying out dry-method etching on the dielectric hard mask layer and removing the photoresist by ashing; carrying out dry-method etching on the aluminum film; and spin coating the polyimide layer, photoetching and opening the polyimide layer to form an aluminum pad pattern and then removing the dielectric hard mask layer on the aluminum pad by dry-method etching. In the production of the aluminum pad, the ashing step after the aluminum film is subjected to photoetching is omitted, and thus the damage to the polyimide matrix is avoided and the possibility of causing the collapse of a narrow aluminum line is reduced. The production process is relatively simple and the produced aluminum pad can meet the demand on the layout change of the aluminum pad.

The invention discloses a filler wall with herringbone ladder rebars inlaid and a construction method of the filler wall and belongs to the technical field of earthquake prevention and disaster mitigation. The filler wall is arranged in a frame structure and composed of energy-dissipation strips, concrete blocks, a concrete frame, preset connected rebars and diagonal ladder rebar net braces. During construction, the concrete frame and the diagonal braces are manufactured as designed according to common frames, and the preset connected rebars are manufactured and formed. With the presence of the vertical energy-dissipation strips, the frame structure is protected from damage by the filler wall in the earthquakes, and earthquake energy can be dissipated. Also, the filler wall can tightly contact with frame columns, and construction procedures are saved. Shear-bearing capacity of the filler wall is improved by the diagonal herringbone ladder rebar net braces, the integrality of the filler wall is improved and energy dissipation is increased. The filler wall with the herringbone ladder rebars inlaid sufficiently adopts energy dissipation of the braces and the block structure, is environment friendly due to the fact light materials thereof can be manufactured by industrial waste, and is applicable to concrete frame structures and wide in application prospect.

The invention provides an indoor-outdoor supporting hanger for banners, comprising a body. The body includes a first supporting hanging mechanism, a connection mechanism and a second supporting hanging mechanism; the first supporting hanging mechanism is connected with the second supporting hanging mechanism through the connection mechanism; the first supporting hanging mechanism includes a firsthanging barrel, a first adjusting rod, a first sleeve, a first lock, a first bearing base and first moving wheels. Two end shafts of a banner are placed in the hanging barrels respectively; one supporting hanging mechanism enables the banner to fully spread; the requirement on the use of banners having different lengths can be met. The lengths of extensions of the adjusting rods in the sleeves areadjusted so that the banner reaches a required height and is horizontally hung. The indoor-outdoor supporting hanger for banners is convenient to use, has no need for ladders and other climbing devices, has no potential safety hazards, can be disassembled and assembled, is low transport space consumption, convenient to carry and move and reusable and helps utilize resources maximally.

The invention discloses a manual hole digging pile blasting protection device. The blasting protection device comprises a shell, a first protective layer and a second protective layer; the first protective layer and the second protective layer are located on the outer side of the shell; the second protection layer is located under the first protection layer; sliding grooves are formed in the outer walls of the two sides of the shell separately and are symmetric; two first moving blocks are fixedly arranged on the inner walls of the two sides of the first protective layer separately, and two second moving blocks are fixedly arranged on the inner walls of the two sides of the second protective layer separately; threaded holes are formed in the first moving blocks and the second moving blocks; and a first motor and a second motor are fixedly arranged at the top of the shell. According to the blasting protection device, the protection layers are combined with the shell structure so that the safety protection of constructors can be effectively improved, and the amount of blasting residues in a hole and around the hole can be decreased, meanwhile, a certain protection effect can be achieved on the protective walls, and the construction cost can be effectively lowered.

The invention discloses an exhibition box which comprises a box body and a box cover. The exhibition box is characterized by further comprising an exhibition table, four hollow square hard strips and two U-shaped pushing rods, wherein two straight rods of one of the two U-shaped pushing rods penetrate through two second through holes in a left plate and two first through holes and two strip-shaped clamping grooves in the hollow square hard strips located above the U-shaped pushing rod in a one-to-one corresponding mode to be connected to the left side wall of the exhibition table in a left-and-right movement and inserted mode, two straight rods of the other one of the two U-shaped pushing rods penetrate through two third through holes in a right plate and two first through holes and two strip-shaped clamping grooves in the hollow square hard strips located above the U-shaped pushing rod in a one-to-one corresponding mode to be connected to the right side wall of the exhibition table in a left-and-right movement and inserted mode, and a clamping groove plate matched with a clamping groove unit is fixed to the position, close to a corresponding bent rod, of each straight rod of each U-shaped pushing rod. The exhibition box is simple in structure and novel in design; meanwhile, the functions of storing and exhibiting objects are achieved.

The invention discloses an ecological soil road which is characterised in that a road drain with a section of an arc shape having a small curvature is positioned in the middle of the road; the bottom width of the drain is 50 to 100 cm and the height thereof is 10 to 20 cm; two sides of the road are slopes on which shrubs are planted; and arbor belts with a width of 50 cm are also planted on the two sides of the road. The invention can substantially reduce drain collapse probabilities, smooth draining and minimize pavement radial flows; simultaneously planted grass in the drain can fix and conserve soil; furtherly lightweight vehicles can move in the drain for a short distance, so that a clear road is ensured. The invention possesses relatively substantial social benefits.

The invention relates to a complex pull wire. The feature is adding a steel pipe on the pull wire and there is clearance between the wire and the pipe to make the wire have the function of compression resistant. The steel pipe is fixed with the groundsill firmware of the pull wire. When the connection component between pull wire, or pull wire and perch, or the connection component between pull wire and groundsill is broken, the side direction moving would be stopped by steel pipe. Thus, the possibility of the perch break down would be reduced.

The invention discloses a novel bridge damping support. The novel bridge damping support comprises a base, wherein fixing mechanisms are fixedly mounted at two ends of two sides of the interior of thebase; sliding mechanisms are fixedly mounted on the top surface of the base; a fixing plate is fixedly connected to the center of the top surface of the base; damping rings are arranged on the top surface of the fixing plate; a clamping groove is formed in one sides of the damping rings away from the top surface of the fixing plate; and a second damping spring is arranged inside the clamping groove. The invention relates to the technical field of bridge supports. The novel bridge damping support has the advantages that the base can be fixed relatively stably; furthermore, filler is arranged,so that the stability of the base is increased, and the device has good bearing performance; and a first damping spring and the second damping spring are arranged, so that when earthquake happens, thebridge support has a good earthquake-proof function, and the condition of collapse of the bridge support can be effectively reduced.

The invention relates to the technical field of transformer supporting structures. The utility model discloses a supporting structure and particularly relates to a multifunctional transformer mountingsupporting structure. The supporting structure comprises two telegraph pole bodies and two fixing plates, wherein the two fixing plates are symmetrically arranged on column bodies of the two telegraph pole bodies, second open grooves are formed in the positions, close to the middle, of the opposite faces of the two fixing plates, and sliding grooves are formed in the two sides, away from the second open grooves, of the opposite faces of the two fixing plates. The supporting structure is advantaged in that the fixing plates, the bearing plate, the mounting plate, the fixing block, the fixing sleeve and other structures are designed, the transformer can be effectively mounted, during installation, the length of the supporting structure can be adjusted according to the distance between the two telegraph pole bodies, the supporting structure can be installed between telegraph pole bodies with different intervals, so applicability of the supporting structure is greatly improved, that the device has good stability after installation is completed can be guaranteed, and stability of the transformer after installation is improved.

A chip package structure including a chip, a lead frame, first bonding wires and second bonding wires is provided. The chip has an active surface, a back surface and bonding pads disposed on the active surface. The lead frame includes a die pad, an insulating layer, transfer bonding pads and inner leads. The back surface of the chip is fixed on the die pad. The insulating layer is disposed on the die pad outside the chip. The transfer bonding pads are disposed on the insulating layer. The first bonding wires are respectively connected to the bonding pads and the transfer bonding pads. The second bonding wires are respectively connected to the transfer bonding pads and the inner leads. The chip package structure has smaller volume and a higher yield rate.

The invention relates to a stacking method for a grass planting brick, and the stacking method is mainly completed by a stacking machine for the grass planting brick. The stacking machine for the grass planting brick comprises a bottom shell, wherein a support plate is fixedly installed on the left side of the upper surface back of the bottom shell, and a support frame is fixedly installed on theright side of the upper surface back of the bottom shell. According to the invention, an alignment device is movably installed on an upper surface of a stacking frame, so a handle is pushed to a rightmost end after a bearing plate is placed on a drive screw rod, and then a limiting pin is placed in a limiting hole to fix the position of a limiting correction block; and then according to a shape, apushing block which is the same as the limiting correction block pushes the brick on a conveyor belt into the stacking frame under a drive effect of a pushing device, so that the brick is translatedto the upper surface of the bearing plate. Due to the limitation of the shape of the limiting correction block and the pushing block and the clamping effect produced by the limiting correction block and the pushing block, a placement angle and a position of each pushed brick are ensured to be exactly the same; and thus the center of gravity is not shift, which not only ensures the safety of workers, but also ensures to not increase the production cost.

The invention discloses a diverse reading kiosk integral structure. The diverse reading kiosk integral structure comprises a kiosk body, the kiosk body comprises a base, an outer frame, a glass door and a ceiling, wherein the kiosk body is detachably designed, the glass door is arranged on the outer frame, an anti-pinch mechanism is arranged on one side of the glass door, and the top of the ceiling is rectangular; a pushing mechanism is arranged on the top of the ceiling, a power mechanism is arranged on the pushing mechanism, and the power mechanism is connected with one side of the pushing mechanism in a transmission mode. The diverse reading kiosk integral structure is scientific and reasonable in structure and safe and convenient to use, a manufacturing mode of integrated forming in a market is changed, a detachable assembling mode is adopted, the structure is stable, installation is convenient, so that the production cost and the transportation cost can be effectively saved, and the damage probability of glass is reduced, and buckle structure is easy and convenient to install.