194results about How to "Uniform support" patented technology

The invention discloses a plate heat exchanger, which belongs to the field of heat exchange, and comprises a plate body I, a plurality of guide columns fixedly connected to one side of the plate body I, a plate body II movably sleeved outside the guide columns, and a heat exchange sheet positioned between the plate body I and the plate body II, the vertical installation assembly comprises a supporting column fixedly connected to one side of the first plate body, a rotating base rotationally connected to the outer portion of the supporting column in a sleeving mode, two lower side plates symmetrically and fixedly connected to the upper end of the rotating base, two upper side plates fixedly connected to the upper ends of the two lower side plates correspondingly, and guide parts fixedly connected to one sides of the two upper side plates and one sides of the two lower side plates. The heat exchange plate can be vertically inserted between the two upper side plates and the two lower side plates, the process of bending installation of the heat exchange plate is avoided, the mechanical stress effect on the heat exchange plate is remarkably reduced, damage such as deformation, scratches and creases possibly caused in the installation process is reduced, the structural integrity of the heat exchange plate is improved, and the service life of the heat exchange plate is prolonged.

The invention relates to the related technical field of high-voltage wires, in particular to a high-voltage connecting wire with a fixed shape and a shielding function, which comprises a metal conductor, and a supporting mechanism is arranged on the outer side surface of a sheath. According to the high-voltage connecting wire with the fixed shape and the shielding function, through the arrangement of the supporting mechanism, during installation, the first supporting block and the second supporting block are close to each other from the two sides of the sheath, the clamping blocks are pushed into the clamping grooves, the fixing blocks are extruded to push the limiting plates to compress the telescopic springs, and after the clamping blocks enter completely, the fixing blocks pop out under the action of the springs and are inserted into the fixing holes; the supporting blocks surround the sheath to provide stable support for the wire, and when the wire is subjected to external force, the supporting mechanism protects the internal wire structure, prevents deformation and damage, improves the use flexibility and tightly cooperates with the supporting blocks to provide rigid support and ensure that the shape of the wire is fixed by means of structural strength and elastic buffering. And the installation and use reliability is improved.

The utility model provides a roof photovoltaic assembly transportation device which comprises a carrying vehicle and a guide rail set used for bearing the carrying vehicle, and the guide rail set is arranged on a roof. The carrier comprises a bearing part for bearing the photovoltaic module and a guide wheel group arranged at the bottom of the bearing part, and the guide wheel group is matched with the guide rail group; the front end and / or the rear end of the bearing part are / is connected with a handle. According to the roof photovoltaic module transporting device, the guide rail set is arranged, and a foundation is laid for the carrying vehicle to move on a roof. By arranging the bearing piece, the carrying vehicle can bear the photovoltaic module; the guide wheel set is arranged at the bottom of the bearing part and matched with the guide rail set, so that the carrying vehicle can move on the roof along the guide rail set; the front end and / or the rear end of the bearing part are / is connected with the handle, so that a worker can conveniently push the carrier, and the photovoltaic module can be quickly transported to each assembly point along the guide rail group, so that the working efficiency can be improved, and the construction management difficulty and cost can be reduced. In addition, the photovoltaic module is carried through the carrying vehicle, so that the safety of the photovoltaic module and carrying personnel can be better guaranteed.

The utility model relates to the technical field of conveying equipment, and discloses a belt conveyor which comprises a shell, a controller is fixedly installed on the outer wall of the shell, a first motor is fixedly installed on the inner wall of the shell, a rotating wheel is fixedly installed on a power output shaft of the first motor, and a chain is meshed with the outer wall of the rotating wheel. A driven wheel is meshed with the inner wall of the chain, a transmission cylinder is fixedly installed on the outer wall of the driven wheel, a conveying belt is connected to the outer wall of the transmission cylinder in a rolling mode, and a second motor is fixedly installed on the inner wall of the other shell. According to the belt conveyor, the controller is operated, the second motor is used for driving the cleaning brush to rotate, so that materials scattered on the outer wall of the conveying belt are collected, when the belt conveyor is used, the cleaning brush can clean the outer wall of the conveying belt while the conveying belt runs, shutdown cleaning is not needed when the materials are attached to the conveying belt, and the working efficiency is improved.

The utility model relates to the technical field of dies, and discloses a zinc alloy auto spare part forming die. The zinc alloy auto spare part forming die comprises a movable plate, a limiting column is fixedly installed on the upper portion of the movable plate, a bottom die is fixedly installed on the upper portion of the movable plate, a supporting frame is fixedly installed on the lower portion of the movable plate, and a connecting block is arranged on the lower portion of the supporting frame. The connecting frame surrounds the die-casting space between the bearing plate and the bottom die, in the die-casting process, cooling liquid can be guided into a copper pipe in the connecting frame through the connecting pipe, heat absorbed by the connecting frame is taken away through the cooling liquid, temperature difference is formed on the contact face between the bearing plate and a casting, and the casting quality is improved. Therefore, the heat of the casting can be quickly conducted to the bearing plate and is finally taken away from the mold through the cooling liquid in the copper pipe, the cooling forming time of the casting can be shortened in the mode, and the production efficiency is improved.

The invention discloses a pipe jacking construction device and a construction technology thereof, and relates to the technical field of pipeline construction, the pipe jacking construction device comprises a starting well, a backrest is fixedly connected to the inner wall of the left side of the starting well, an oil cylinder is fixedly connected to the right side of the backrest, a supporting frame is fixedly connected between the oil cylinder and the inner bottom wall of the starting well, and a grading ring is fixedly connected to the output end of the oil cylinder; the device further comprises an adaptive bearing auxiliary mechanism and a pipe jacking deviation testing mechanism, through the arrangement of the adaptive bearing auxiliary mechanism, according to the difference of geological conditions, construction conditions and engineering requirements of different starting wells, gaps between different transversely-arranged arc-shaped bottom supporting plates can be effectively adjusted so as to adapt to and support construction pipelines of different specifications, and the working efficiency is improved. Therefore, the whole supporting system does not need to be replaced, the flexibility and efficiency of construction are greatly improved, the matched arc-shaped bottom supporting plate can be more tightly attached to the surface of the pipeline, more uniform supporting force is provided, shaking and deviation of the pipeline in the moving process are reduced, and therefore the supporting stability is enhanced.

The invention relates to the technical field of massage equipment, and discloses a motor-based centrifugal force driven suspension type vibration / beating massager, which comprises a support mechanism for supporting the whole device, and during use, a part needing to be massaged is in contact with the support mechanism, so that subsequent vibration / beating massage operation can be carried out; the shaking mechanism is arranged in the supporting mechanism, the shaking mechanism comprises a flexible assembly and a driving assembly, and the flexible assembly is arranged in the supporting mechanism in a suspended mode and used for making contact with an area needing to be massaged. According to the invention, the design of a suspension structure is matched with the ball body, so that multi-angle stable fitting is realized, the device keeps the consistency of the massage effect under different body positions, and the comfort is improved. Meanwhile, centrifugal driving and a multi-layer vibration mode effectively meet the requirements of a user for beating and stimulation, and deeper and more flexible massage experience is provided.

The utility model discloses a building pressure-resistant waterproof structure which comprises a building wall body, an inner reinforcing layer is fixed in the middle of the interior of the building wall body, a water guide pipe is installed on one side of the interior of the building wall body, and anti-seepage sponges are fixed to the two sides of the water guide pipe. A sound insulation layer is fixed to the other side of the interior of the building wall body. The inner reinforcing layer is fixed in the middle of the interior of the building wall body, the reinforcing steel bars are evenly distributed in the inner reinforcing layer, the reinforcing steel bars can achieve the purpose of even supporting, then the water guide pipe is installed on one side edge of the inner reinforcing layer, and after the water guide pipe is installed, the water guide pipe is fixed to the inner side edge of the inner reinforcing layer. According to the water guide pipe, the purpose of guiding water and rain can be achieved, and after the anti-seepage sponge is fixed to the outer portion of the water guide pipe, the anti-seepage sponge can absorb seepage water, so that in the working process, water can be drained, the water accumulation problem is solved, and the good anti-seepage capacity and use strength are achieved.

The invention relates to the technical field of pressure maintaining equipment, in particular to modularized pressure maintaining equipment. Comprising a base used for horizontally fixing a material disc, and all pieces to be subjected to pressure maintaining are sequentially placed on the material disc in a rectangular array mode; a plurality of groups of pressure plates are arranged above the material plate, and a plurality of pressure maintaining air bags which are in one-to-one correspondence with corresponding pieces to be subjected to pressure maintaining are arranged on each pressure plate; the pressure maintaining air bags on each group of pressure plates are matched with each other to form rectangular array distribution which is the same as that of to-be-pressure-maintained pieces on the material plate; and pressure maintaining telescopic assemblies capable of driving the pressure plates to tightly press the part to be subjected to pressure maintaining are arranged on the pressure plates. According to the invention, each region on the tray is subjected to independent partitioned pressure maintaining through each pressure maintaining module, so that the pressure maintaining efficiency can be effectively improved.

The utility model relates to the field of crushing devices, and particularly discloses a ball mill with uniform stress, which comprises a base, a rotating shaft seat and a barrel, the barrel is driven to rotate, a pair of auxiliary rollers is arranged between the base and the barrel, and the auxiliary rollers are driven by a spring to extrude and press and then approach to and abut against the barrel. According to the scheme, a flexible bearing mode is adopted to share part of pressure of the barrel, the auxiliary roller provides balance through the spring, the contact face of the barrel and the auxiliary roller is located on the side lower portion, part of small pressure is decomposed in the horizontal direction and counteracted by the elastic force of the spring, and part of large pressure is decomposed in the vertical direction and counteracted by the guide groove. The positions and the supporting force of the auxiliary rollers can be adjusted in real time by changing the elastic force of the springs, and the two auxiliary rollers can adapt to barrels with different diameters; and the rotating shaft can also be matched with the rotating shaft, over-positioning does not exist, and finally, the barrel is uniformly supported.

The utility model relates to the technical field of pile foundation construction, in particular to a tool type orifice protection device which comprises a reinforcing ring, a plurality of wall protection pipe columns and fixing parts, the wall protection pipe columns are evenly distributed in the circumferential direction of a drilling pile hole, the wall protection pipe columns are vertically arranged in the drilling pile hole and abut against the hole wall of the drilling pile hole, and the reinforcing ring is detachably connected to the wall protection pipe columns. The reinforcing ring is horizontally arranged in a surrounding area formed by the wall protecting pipe columns, and the fixing pieces are used for connecting and fixing the reinforcing ring and the wall protecting pipe columns; the arranged tool type orifice protection device can be tightly attached to the hole wall in the wet and soft soil layer through the synergistic effect of the multiple protection wall pipe columns and the reinforcing rings, it is avoided that a gap is formed between a protection wall and the hole wall, orifice hole shrinkage of the wet and soft soil layer is effectively prevented, and the service life of the hole is prolonged. And the application range of the orifice protection device to different geological conditions and construction environments is widened.

The invention relates to the technical field of pipeline laying, in particular to a trenchless pipeline laying construction method which comprises the following steps: S1, surveying and setting out, and determining a construction position; s2, working pits are excavated, and the working pits are excavated in the two sides of the road surface correspondingly; s3, a drilling machine is placed in place, and the drilling machine is placed at a designated position; s4, guide hole drilling is conducted, specifically, the position of a guide drill bit of a drilling machine is adjusted, so that the guide drill bit drills into the soil according to a pre-designed track, and a drill hole communicating with the working pits on the two sides is drilled; s5, broaching is conducted, specifically, after the guiding drill bit reaches the expected position, the guiding drill bit is detached, a broaching drill bit is replaced, broaching is conducted through the broaching drill bit, then the broaching drill bits with the diameters increasing in sequence are sequentially replaced, broaching operation is repeatedly conducted, and the diameter of a drilled hole reaches the designed diameter; s6, pipe pulling is conducted, specifically, the pipeline is pulled into the drill hole, and the pipeline is laid at the designated position; and S7, pipeline welding. The method has the effect of avoiding adverse effects on life and traffic of residents in the construction process.

The utility model discloses a turnover embracing column support for accurate positioning and installation of a large-span orthogonal steel truss, which comprises a steel column, an annular steel column hoop is connected with the steel column through high-strength bolts, a triangular steel platform is welded with the annular steel column hoop, steel column brackets are arranged on two sides of the steel column, and the triangular steel platform is connected with the annular steel column hoop through high-strength bolts. The steel column bracket is used for being welded with a large-span orthogonal truss steel beam; steel column hoops are arranged on supports on the two sides of a large-span steel structure, a tripod steel platform is hinged to steel columns, and the tripod steel platform serves as a supporting point of the large-span steel truss and serves as a horse stool for welding a vertical component bracket and the large-span steel truss, so that a welder is helped to keep a welding piece at the correct position and angle, and the welding efficiency is improved. In the welding process of the large-span steel truss, the split heads can prevent a welding piece from displacing due to the influence of gravity or welding heat in the welding process, meanwhile, uniform supporting force can be provided, thermal deformation in the welding process can be reduced, the original shape and size of a steel structure can be kept, and therefore the welding precision and quality are guaranteed.

The utility model discloses a pressing plate type glass curtain wall which comprises a glass curtain wall positioning frame, a glass body is installed on the inner wall of the glass curtain wall positioning frame in a positioning mode, and a pressing plate positioning mechanism is installed at the upper end of the glass curtain wall positioning frame in a positioning mode. The pressing plate positioning mechanism comprises a glass outer positioning frame, an inner movable groove, a triangular preliminary positioning block, a limiting block, a damper, an elastic piece, an insertion positioning groove, an anti-skid cushion block, an inner supporting abutting plate, a positioning preliminary groove, an inner filling rubber pad, a positioning pressing plate frame and an insertion positioning block. According to the pressing plate type glass curtain wall, due to the arrangement of the pressing plate positioning mechanism, it can be guaranteed that the glass plate is installed more smoothly, the problem that the surface is uneven is solved, meanwhile, larger wind loads and earthquake loads can be borne, the safety of the curtain wall is improved, and under the extreme weather condition, the curtain wall is not prone to falling off. The embedded positioning can effectively prevent the glass plate from falling off, and the risk of property loss and personal injury is reduced.

The utility model relates to the technical field of aluminum foil container processing, and discloses an embossing device for an aluminum foil container production line, which comprises a supporting seat and an embossing structure, two supporting plates are arranged on the supporting seat, the embossing structure is arranged between the two supporting plates, a conveying rod is arranged at the side part of the embossing structure, a winding roller is arranged on the supporting seat, and the winding roller is arranged on the supporting seat. The winding roller is located on the front side of the embossing structure, a pressing rod is installed between the embossing structure and the conveying rod, an adjusting frame is installed outside the pressing rod, an adjusting assembly is arranged in the adjusting frame and a supporting plate, and through an adjusting gear and a rack on the adjusting frame, an operator can accurately adjust the position of the pressing rod and the applied pressure so as to adapt to aluminum-foil paper of different thicknesses; therefore, consistency and quality of the embossing effect are guaranteed, the control crank is arranged on the adjusting frame, operation is visual and simple, an operator only needs to rotate the adjusting gear, the adjusting process can be completed, and complex operation steps or professional skills are not needed.

The utility model discloses an unmanned aerial vehicle-mounted radar hanger structure with a damping function, which relates to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body, a base net rack and a pull net rack. The base net rack is connected to the bottom surface of the unmanned aerial vehicle body through bolts, and the lower part of the base net rack is provided with a sunken upper mounting groove; the pull net rack is arranged below the base net rack, the edge of the pull net rack is connected with the base net rack through a plurality of elastic connecting pieces, the upper portion of the pull net rack is provided with a sunken lower installation groove, and the lower installation groove corresponds to the upper installation groove and is used for being connected with the airborne radar in a clamped mode. Through the elastic connecting pieces between the base net rack and the towing net rack and the elastic supporting pieces on the towing net rack, vibration and impact generated in the flying process of the unmanned aerial vehicle can be effectively absorbed and buffered, precise equipment such as airborne radar can be protected, the performance of the unmanned aerial vehicle is improved, and the service life of the unmanned aerial vehicle is prolonged.

The invention discloses a method for designing a bionic bone scaffold based on unit cell size gradient change, and belongs to the field of biological material design. The method comprises the following steps: calculating the overall wall thickness of FCC, TH and G cell size gradient models according to the required porosity; a unit is selected as a unit cell size radial gradient, in order to better simulate a natural bone structure, the overall porous structure morphology is designed as a cylinder model, and the unit cell sizes of the outer layer and the inner layer of each model are designed as required; the overall porosity of the three novel porous structure scaffolds reaches 55% by changing the wall thickness; carrying out mechanical property testing on the novel porous structure; observing the compression deformation behavior of each model and recording the numerical results of the elastic modulus and the yield strength after simulation; the designed novel porous scaffold has different functional gradients in the radial direction, and the application range of the energy absorption material unit in bionic bone scaffold design is expanded.

The application relates to the technical field of household appliances, in particular to a refrigerator comprising a cabinet, a cabinet inner container, a refrigeration pipeline, a fixing assembly, the cabinet inner container is provided with a mounting port, the fixing assembly comprises a fixing piece used for fixing the refrigeration pipeline and a screwing piece connected to the fixing piece, and the screwing piece is configured to rotate relative to the mounting port so as to fix the refrigeration pipeline to the cabinet inner container. The fixing assembly used for mounting the refrigeration pipeline is convenient to install and reliable in connection.

The utility model discloses a vertical pouring prefabricated box culvert shaping template which comprises an outer forming die and an inner forming die, a pouring cavity is formed between the outer forming die and the inner forming die, and the outer forming die is formed by splicing two first supporting side templates and two second supporting side templates. The adjacent first supporting side formwork and second supporting side formwork are detachably connected through a sealing connecting assembly, a lower sealing assembly is arranged at the bottom of the outer forming die, a synchronous inner supporting assembly is arranged in the inner forming die, and a pouring sealing assembly is arranged at the top of the outer forming die. The box culvert pouring sealing device has the advantages that the structure is simple, uniform pouring work of concrete is facilitated, demolding work of a formed box culvert is facilitated, the overall sealing performance is good during pouring, stable supporting can be provided for an inner forming mold, and the problem of deformation of the inner forming mold is avoided.

The present invention discloses a device for simulating weightlessness environment based on nitrogen springs and air floating pads, comprising a base plate, a hinge fixing mechanism, a space hinge, a counterweight, an air floating support mechanism and an exciting device, wherein the hinge fixing mechanism, the air floating support mechanism and the exciting device are sequentially mounted on the base plate, one end of the space hinge is connected to the hinge fixing mechanism, the other end of the space hinge is connected to a side surface of the counterweight, the other side surface of the counterweight is connected to an exciting rod of the exciting device, the counterweight is arranged on the air floating support mechanism and air floating support is formed for the counterweight through the air floating support mechanism; the device is used for measuring dynamic stiffness, so the inherent characteristics of the rubber rope will affect the accuracy of the test result, while the present invention uses an air floating device to reduce the external influence on the dynamic stiffness of the hinge.

The utility model discloses a clamping device for metal steel pipe processing, which comprises a steel pipe clamping device, the two sides of the top of the steel pipe clamping device are fixedly connected with support rings, the inner sides of the support rings are rotatably connected with metal rods, and the surfaces of the metal rods are fixedly connected with hold-down rings. A servo motor is started, the servo motor drives a second bevel wheel to rotate, the second bevel wheel drives a first bevel wheel to rotate, the first bevel wheel drives a screw to rotate, the screw drives a lifting plate to move upwards, the lifting plate drives a toothed plate to move upwards, and the toothed plate moves to drive a gear to rotate. The gear rotates to drive the metal rod to turn over, the metal rod turns over to drive the pressing ring to press the steel pipe, the steel pipe can be fully fixed, the steel pipe can be clamped and fixed, follow-up machining and cutting are facilitated, an existing manual clamping mode is replaced, and therefore the efficient and automatic clamping effect is achieved.

The utility model discloses an inflatable lower limb fixator which comprises a plastic plate, a plurality of first plastic plate fixing belts are fixedly arranged on the front side of the plastic plate, a plurality of second plastic plate fixing belts are fixedly arranged on the rear side of the plastic plate, and the first plastic plate fixing belts and the second plastic plate fixing belts are arranged in a one-to-one correspondence mode. The first plastic plate fixing belt and the second plastic plate fixing belt are detachably and fixedly connected, an air cushion is detachably and fixedly arranged at the top of the plastic plate, a plurality of air chambers are evenly and fixedly arranged in the air cushion in a sealed mode, an inflation part is fixedly connected to one side of the air cushion, and a sponge cloth cushion is installed on the air cushion. The lower limb restraint strap solves the problems that a restraint strap is mainly applied clinically at present to restrain the lower limbs of a patient, but the effect is not obvious, and the function of preventing lower limb thrombus cannot be achieved.

The utility model discloses a fiber support inflatable cushion which comprises a top layer, a bottom layer, a covered edge and a plurality of fiber drawing wires, the top layer and the bottom layer are oppositely arranged, the covered edge is connected to the periphery of the side top layer and the periphery of the bottom layer, a sealed inflatable cavity is formed among the top layer, the bottom layer and the covered edge, and the fiber drawing wires are located in the inflatable cavity. One end of the fiber drawing wire is connected with the top layer, and the other end is connected with the bottom layer; the air bag further comprises a built-in air pump and a deflation mechanism, and the built-in air pump and the deflation mechanism are both arranged on the wrapping edge and communicated with the inflation cavity. Wherein the base layer is formed by weaving composite fibers, the middle layer is made of cloth, the outer layer is made of polyvinyl chloride, and the inflatable cushion is excellent in air permeability, high in elasticity, light in weight and capable of being automatically inflated and deflated; the inflatable cushion is further provided with the deflation mechanism, the deflation mechanism can assist the built-in air pump to deflate together, the deflation efficiency of the inflatable cushion is improved, and the abandoning time of the inflatable cushion is saved.

The utility model relates to the technical field of jack, and disclose a four -column jack lifting frame, including main part mechanism, both sides of main part mechanism all are provided with fixed establishment, main part mechanism includes bottom plate, bottom plate top corner all are fixedly connected with hydraulic jack body, the pump rocker of two hydraulic jack bodies behind bottom plate both sides all have and insert the first connecting rod, first connecting rod front end fixedly connected with connecting barrel, connecting barrel is provided with two, two connecting barrel all insert support rod, two support rod far from two connecting barrel one end fixedly connected with second connecting rod. This four -column jack lifting frame, four -column jack lifting frame adopts four hydraulic jack bodies to work simultaneously, can provide even support force, compared with single -point jack, when supporting larger area or longer object, has improved stability greatly, has reduced the risk of lateral tilting effectively, has guaranteed operation safety.

The utility model discloses a scratchproof steel roll hoisting sling and buffer protection device belongs to metallurgical product hoisting equipment technical field, scratchproof steel roll hoisting sling and buffer protection device, including main rod and ring, the ring is screwed on the top of main rod, the below of main rod is connected with riser, the below of riser is connected with the connecting seat of bolt, and the left lower corner and right lower corner position of riser are installed with conical seat respectively, through setting up by the flexible clamping structure of arc seat and arc clamp cover, realized to the full package formula, non -injury clamping of steel roll outer circumferential surface, in the hoisting process, two arc seats are driven under the four connecting rod mechanism and move inwards synchronously, and the arc clamp cover of its inside is made of flexible material (rubber), can completely adhere to the outer circumferential surface of steel roll, and this clamping mode avoids the mode of traditional sling insertion steel roll inner diameter or with metal hook, thoroughly eliminates the direct contact of metal parts and steel roll surface.

The utility model relates to a body position pad, in particular to a multifunctional semi-reclining body position pad. Comprising an upper body bottom pad, a sacrococcygeal pad and an adduction pad, and the upper body bottom pad is wedge-shaped and used for supporting the upper body of a patient by a certain angle; the sacrococcygeal pad is arranged at the lower part of the upper body bottom pad and is used for supporting the sacrococcygeal part of the patient to prevent the patient from sliding down due to gravity; the first end of the adduction pad is connected to the sacrococcygeal pad, the second end of the adduction pad is far away from the sacrococcygeal pad, and the adduction pad is used for supporting a patient. Through the wedge-shaped upper body bottom pad, the upper body of a patient can be effectively supported to a proper angle, body pressure is relieved, meanwhile, the sacrococcyx pad and the adduction pad are arranged to prevent the patient from sliding down due to gravity, and stable support is provided.

This invention relates to the field of precast wall panel technology, and more particularly to a fixing device for inclined support of precast wall panels. The technical solution includes: a support member comprising a support plate, a rotating rod, a stop block, a helical spring, support legs, and a lower pressure plate. The bottom of the support plate is fixedly connected to a base plate. The middle part of the rotating rod is rotatably connected to the support plate via a rotating shaft. Two rotating rods are provided, symmetrically positioned about the center line of the support plate on its sides. The sides of the rotating rods, near their ends, are elastically connected to the stop blocks via helical springs. The bottom of the rotating rod is fixedly connected to the support legs, which have an L-shaped structure. The lower pressure plate is rotatably connected to the support legs via a rotating shaft. This invention transmits the pressure of the precast wall panel to the lower pressure plate. The component force generated by the lower pressure plate presses down, increasing the friction with the ground and preventing the precast wall panel from tilting and being pushed, thus avoiding damage caused by the precast wall panel tipping over.

The utility model discloses a prism module, a periscopic lens and electronic equipment, and belongs to the technical field of mobile terminal cameras. The prism carrier is mounted on the base, and a mounting cavity is formed in the prism carrier; the prism part is mounted in the mounting cavity; the glue joint reinforcing part is mounted on the base, or on the prism carrier, or between the base and the prism carrier, the glue joint reinforcing part is provided with a glue joint surface, the glue joint surface is provided with an inverted buckle forming part, the glue joint surface is at least partially exposed in the cavity space of the mounting cavity, and the inverted buckle forming part is exposed in the cavity space of the mounting cavity; and at least part of the glue layer is arranged between the prism part and the glue joint surface exposed in the cavity space. The inverted buckle forming part not only increases the contact area of the adhesive layer and the carrier, but also realizes mechanical interlocking through an inverted buckle structure formed by the inverted buckle forming part and the adhesive layer, so that the prism can be effectively prevented from falling off under the condition that the weight is increased.

The present invention relates to an adaptive ground leveling device and a leveling method thereof, which belongs to the field of leveling technology and solves the problems of platform leveling lag and inconsistent force on each leg in the prior art. The leveling device of the present invention includes a rocker arm, a horizontal sensor, an encoder, four legs and a balancing mechanism. The first and second legs are hinged to the platform body through the first and second rocker arms, and the connection points are two rotating pairs. The third and fourth legs are hinged to the platform body through the third and fourth rocker arms. A parallelogram mechanism is formed between the legs and the two rotating pairs, which can swing around the platform body as a whole, and the linkage of the two sets of parallelogram mechanisms is maintained through the balancing mechanism, so that the legs are perpendicular to the platform, and the leg spacing and landing position can be measured. The present invention realizes the leveling of the leveling device and ensures that each leg lands at the same time by adjusting the length and landing position of the legs, and can provide balanced support.

The invention belongs to the technical field of biomedical mechanics tests, and relates to a hollow tubular sample work fixture and a test method, the hollow tubular sample work fixture comprises an anti-crushing expansion bolt and a tester chuck; the anti-crushing expansion bolts are installed in the two ends of the hollow tubular sample, and the hollow tubular sample provided with the anti-crushing expansion bolts is clamped and loaded through a testing machine chuck. The tool clamp is installed in a clamping section pipe of the hollow tubular sample, the hollow tubular sample can be supported by screwing down the anti-crushing expansion bolt, the clamping section of the hollow tubular sample is effectively prevented from being crushed, the clamping section of the hollow tubular sample is made to be the same as that of a solid sample, and the clamping efficiency of the hollow tubular sample is improved. And the clamping load of a testing machine can be borne without being crushed.