99results about How to "Increase fixed range" patented technology

The invention relates to a fracture external fixing frame and particularly relates to a fracture external fixing frame with an adjustable axial pressure among bone blocks, belonging to external fixation instruments for fracture treatment. According to the fracture external fixing frame, the problem that the space among fractured blocks usually cannot be properly pressurized when fracture is steadily fixed by virtue of an existing fixing instrument is solved. The fracture external fixing frame is characterized in that a frame rod is segmented, and one or two ends of each segment is / are providedwith plugs or interfaces; spring devices (including one or more of metal springs, gas springs and elastic matter pads) are arranged in the plugs or the interfaces and are spliced to form connecting devices for adjusting the axial pressure among the bone blocks, and the frame rod segments can form an integrated combined frame rod by the connecting devices. By adjusting the elastic forces of the whole spring devices, the action forces of the connecting devices on two frame rod segments on two sides in the long-axis direction are changed, and therefore, the axial pressure among the bone blocks is adjusted. The fracture external fixing frame is applied to fracture fixation, and when the fracture is steadily fixed, excessive stress shielding can be avoided, and the axial pressure among the bone blocks can be flexibly quantized, adjusted and controlled into a proper level required by fracture healing, so that fracture healing is promoted.

The invention provides a dustproof protection device for a rare earth permanent magnet synchronous motor. The dustproof protection device includes a motor body, wherein a dustproof protection mechanism is fixed on the motor body; a support mechanism is welded and fixed at the lower end of the motor body; the support mechanism is located under the dustproof protection mechanism; the dustproof protection mechanism includes upper snap rings, lower snap rings, a connection strip block, micro fans, an ear plate, an arc guide rail, a dustproof net 1, elastic rubber sleeves, threaded rods, nuts, a handlebar and a dustproof net 2; and the support mechanism comprises a hollow plate, a base, an open slot 1, a connection plate, an open slot 2, limiting blocks, a support plate, a telescoping plate, alimiting groove opening and a through hole. Compared with the prior art, the dustproof protection device for a rare earth permanent magnet synchronous motor has the following advantages: achieving theaim of dustproof and shock absorbing protection, improving the use effect, facilitating carrying, improving the heat dissipation effect, achieving the aim of height adjustment, and expanding the fixed range so as to improve the fixing stability.

The invention belongs to the technical field of furniture production, and particularly relates to a nailing device used for furniture production. By the adoption of the nailing device used for furniture production, the problems that an existing workbench used for furniture production is constant in size, and the fixing range of fixing assemblies cannot be adjusted as required are solved. Accordingto the scheme, the nailing device used for furniture production comprises a workbench, wherein grooves are formed in the outer walls of the two sides of the workbench at equal intervals, second hydraulic rods are arranged on the inner walls of the grooves, the multiple second hydraulic rods are connected with a synchronous hydraulic system, and a fixing plate is arranged at the other ends of themultiple second hydraulic rods on the same size. According to the nailing device used for furniture production, the grooves, the second hydraulic rods and the fixing plates are arranged, and fixing assemblies are installed on the fixing plates; when furniture is fixed, if the size of the furniture exceeds the surface area of the workbench, the second hydraulic rods are adjusted to drive the fixingplates to move to increase the distance between the fixing assemblies, so that the fixing range of the fixing assemblies is widened, and the practical value of the nailing device is improved.

The invention discloses a piezoelectric material electric polarization clamping device. The piezoelectric material electric polarization clamping device is characterized in that a clamping and positioning mechanism can clamp and position a plurality of piezoelectric materials to be electrically polarized at the same time, a clamp supporting, positioning and locking mechanism can lock and positionthe clamping and positioning mechanism so as to replace the clamping and positioning mechanism, the piezoelectric materials to be electrically polarized are loaded, unloaded and replaced at the same time, the loading and unloading efficiency can be effectively improved, the electric polarization efficiency is improved. According to the piezoelectric material electric polarization clamping device,the piezoelectric materials can be clamped by another external clamping and positioning mechanism during electric polarization, and the use convenience is improved; the clamp supporting, positioning and locking mechanism is arranged, the clamping and positioning mechanism is supported through two supporting plates, the distance between the two supporting plates is adjusted through a rotary knob, afixing device is arranged, the clamping and positioning mechanism is pressed and fixed through a pressing device of the fixing device by rotating the rotary knob, the fixing range is large, and the operation is simple.

The invention discloses a multi-elevator and vertical lift three-dimensional parking garage, which belongs to the technical field of a parking lot. The parking garage includes a base, an elevator guide rail group, elevator guide rail seats, first guide rails, second guide rails, clamping mechanisms, annular parking spots and vehicle body adjustment devices; and the elevator guide rail group is disposed on the base, the base is connected with the elevator guide rail group in a shaft manner, the multiple elevator guide rail seats that can slide up and down are disposed on the elevator guide railgroup, the elevator guide rail seats are hinged to the first guide rails, the first guide rails are slidingly hinged to the second guide rails, the second guide rails are slidingly connected with theclamping mechanisms, the annular parking spots are disposed on the periphery of the elevator guide rail group in a circular manner, the upper end of the elevator guide rail group is connected to thetop of the annular parking spots in the shaft manner, and each parking space at entrance and exit layers of the annular parking spots is equipped with the vehicle body adjustment device. In the multi-elevator and vertical lift three-dimensional parking garage, through coordinated operation of multiple elevators, space of the parking garage is reduced, the efficiency of parking and picking up of vehicles is improved, a contradiction between the efficiency of parking and picking up of the vehicles and the number of parking spaces is solved, and smart city platform management is performed on thebasis of automatic operation.

The invention discloses a notching-type automobile drum brake lining. The notching-type automobile drum brake lining comprises a lining body, fixing plates, screw mounting bases and a drum brake. A lining movable end is arranged at the left side of the lining body, and a lining fixed end is arranged at the right side of the lining body. A lining friction face is arranged on the upper side surfaceof the lining body, and a lining mounting face is arranged on the lower side surface of the lining body. The fixing plates are arranged on the inner side surface of the lining body. Heat radiating grooves are formed between lining mounting plates of the fixing plates, and the lining mounting plates are distributed in a hexagon shape. The fixation range is wide, the number of the heat radiating grooves is large, the integral strength of the lining can be guaranteed and meanwhile the heat radiating effect of the lining is improved. In addition, the lining movable end is set to be thick, due to the facts that the movable end is pushed by a brake cylinder and the friction force between the movable end and the drum brake is large, the abrasion speed is high compared with the other end of the lining, the thick lining movable end can improve the braking effect of the lining at the later period, and the service life of the lining can be prolonged.

The invention discloses a blade surface rust stain treatment device for centrifugal pump maintaining. The device comprises a treatment shell body, the inner wall of the bottom of the treatment shell body is rotatably connected with a rotating shaft, a thread hole is formed in the outer wall of the top of the rotating shaft, the inner wall of the thread hole is rotatably connected with a thread rodthrough a thread, a round block is mounted on the outer wall of the top of the thread rod, a round rod is arranged on the outer wall of the top of the round block, an extrusion ring is rotatably connected to the circumference outer wall of the round rod through a thread, the same screw is rotatably connected to the inner walls of the two sides of the treatment shell body, the circumference outerwall of the screw is rotatably connected with a sliding block through a thread, the rotating shaft, the thread rod, the round block and the extrusion ring on the round rod are arranged, before use, the round block matched with a blade is selected, and then is fixed to the rotating shaft, the blade is inserted into the round rod, the extrusion ring is used for fixing, the centrifugal pump blade canbe rapidly fixed, the fixing range can be widened, use by a worker is facilitated, and the subsequent blade rust stain treatment is facilitated.

The invention discloses a quality inspection detection device for the size of an inner cavity of a flywheel casing. The quality inspection detection device comprises a base, a translation mechanism, a combined clamping mechanism and a graduated scale. The device has the beneficial effects that by arranging the lifting mechanism, not only can the measurement height of the graduated scale be adjusted, but also the depth of the inner cavity of the flywheel shell can be measured by adjusting the lifting of the graduated scale, so that the quality inspection efficiency is improved; when the flywheel shell is clamped, one side of the flywheel shell can be placed in a clamping groove of an L-shaped fixing block, then an adjusting screw rod on the adjacent side is rotated, the adjusting screw rod drives a limiting plate to get close to the L-shaped fixing block and gradually drives an abutting block to extrude a spring, and the flywheel shell is fixed through the elastic force effect of the spring; flywheel housings with different signals can be fixed, the fixing range of the flywheel housings can be expanded, the transverse size of the flywheel housing can be read by attaching the graduated scales on the two sides to the inner cavity wall of the flywheel housing and through the positions of the scale marks where the connecting rods on the two sides are located, and the testing accuracy is high.

The invention discloses a turning device for mold surface treatment and a machining method thereof, and relates to the field of mold surface treatment.The turning device comprises a device body, a linear motor is installed at the top of the device body, a moving assembly is installed at the top of the linear motor, and a connecting rod is arranged at the top of a moving block; a first connecting block is rotatably connected to the top of the connecting rod, a guide rail is mounted in the center of the top of the connecting frame, a mounting part is mounted on the outer wall of the guide rail, and a second positioning block is movably connected to the left side of an inner cavity of the mounting part. An extension block is movably connected into an inner cavity of the positioning assembly, and a fine adjustment assembly is installed on the outer wall of the extension block. According to the turning machining device for mold surface treatment and the machining method of the turning machining device, the positions of a turning tool for turning and a mold material can be adjusted through the structure, and meanwhile adaptability is good.

The utility model discloses a vehicle positioner machining device which comprises a bottom plate, a first connecting plate is welded to the left side of the upper end of the bottom plate, a second connecting plate is welded to the right side of the upper end of the bottom plate, a control box is arranged on the right end face of the second connecting plate, and an adjusting mechanism is arranged between the first connecting plate and the second connecting plate. The right end of the adjusting mechanism partially penetrates through the second connecting plate and is located in the control box. The adjusting mechanism is arranged between the two connecting plates, the motor is controlled to drive the threaded rod to rotate, then adjustment is conducted according to the width of the positioner, the fixing range of the positioner is enlarged, the rotating device and the fixing device are arranged at the upper ends of the two connecting plates, and after the positioner is fixed, the rotating device and the fixing device can be conveniently adjusted. And the fixing plate can be rotationally adjusted according to the machining face requirement of the positioner, the fixing plate is fixed through the locking nut after rotation, and firmness is improved.

The utility model discloses a gate valve processing fixing device which comprises a base, the lower side of the base is movably connected with a first horizontal gear, the inner side of the first horizontal gear is movably connected with an adjusting screw rod, the outer side of the adjusting screw rod is in threaded connection with a fixing plate, and the fixing plate is fixedly connected with the base. A second horizontal gear is meshed with the outer side of the first horizontal gear, a driving rod is fixedly connected to the upper side of the second horizontal gear, a first clamping plate is fixedly connected to the upper side of the driving rod, and a cross groove is formed in the inner side of the base. By arranging the first horizontal gear, the first clamping plates can be mutually rotated to be close to each other, so that four surfaces of gate valves with different sizes can be conveniently clamped and fixed, the fixing effect of the device is improved, the fixing range is expanded, and by arranging the first bevel gear, the second clamping plates can be mutually close to each other to clamp the gate valves, so that the clamping effect is improved. And the fixing effect of the device is further improved, and the problem that the fixing effect of the gate valve machining fixing device is poor is solved.

The utility model relates to the field of refrigeration pipelines, in particular to a fixing device for laying of refrigeration pipelines of a refrigeration house, and aims to solve the technical problems that in the prior art, the distance and the parallelism between the pipelines are inconvenient to control during laying, and the pipelines are prone to being damaged by equipment during fixing, the fixing device is characterized in that a pipeline groove is formed in the lower portion of a thick-edge plate, and the width of the pipeline groove is equal to the outer diameter of the pipelines; the thick-edge plate is connected with the thin-edge plate through a first sliding rail, a first sliding positioning plate is connected to the first sliding rail in a sliding mode and can slide and be locked on the first sliding rail, scales are marked on the first sliding rail, a reference pipeline is firstly fixed, and then the first sliding positioning plate slides on a pipeline groove of the thick-edge plate with the reference pipeline as the reference. The metal pipelines are buckled in the pipeline grooves of the first sliding positioning plate, the parallelism and the distance between the adjacent pipelines are guaranteed, positioning can be completed by buckling the pipeline grooves, clamping is not needed, the metal pipelines cannot be damaged, and when the pipeline distance is long, the second sliding positioning plate slides to extend the fixing range.

The invention discloses a portable distance measuring device for engineering supervision. The portable distance measuring device for engineering supervision comprises an annular frame; a measuring device which is connected with the annular frame and is used for directional measurement; at least three groups of stabilizing assemblies which are arranged outside the measuring device and are used for fixing and stabilizing the measuring device, wherein the measuring device comprises at least three groups of adjusting assemblies, and the adjusting assemblies are arranged outside the annular frame and are used for adjusting and connecting external assemblies; and a distance measuring assembly which is connected with the adjusting assemblies and is used for directional distance measurement. The portable distance measuring device has the advantages that the device is reasonable in design, multi-angle fixing of the device can be achieved through the external fixing arm assembly, the fixing range is large, the internal adjusting assemblies are matched with the distance measuring assembly, the distance measuring range is further widened, the outer annular frame facilitates overall taking of the device, the defects of an existing device are overcome, and the device has high practicability and market prospects and is suitable for large-scale application and popularization.

The invention discloses a steel structure building welding main beam monitoring device, and relates to the technical field of monitoring. The steel structure building welding main beam monitoring device comprises a steel structure body and two fixing mechanisms, each fixing mechanism comprises a supporting shell, the inner walls of the two ends of each supporting shell are rotatably connected with a bidirectional screw rod, and the two ends of the circumferential outer wall of the bidirectional screw rod are rotatably connected with sliding blocks through threads; and a first fixing shell and a second fixing shell are installed on the outer walls of one sides of the two supporting shells correspondingly, and a monitoring mechanism is arranged at one end of the second fixing shell. The fixing mechanism is arranged, a rotating block is rotated to drive a two-way lead screw to rotate so as to drive fixing plates on the two sliding blocks to move in opposite directions, due to fixing rods, buffer springs and extrusion arc-shaped blocks on the fixing plates, the device can be rapidly fixed to a steel structure body, and the fixing rods can move front and back. Therefore, the supporting shell can be fixed to the inner side or the outer side of the steel structure body, and the fixing range is widened.

The utility model belongs to the technical field of multi-section cutting for spinning paper tubes, and particularly relates to a multi-section cutting device for spinning paper tubes, which comprises a working table, a U-shaped plate fixedly mounted at the top of the working table, a sliding groove formed in the U-shaped plate, a fixing rod fixedly mounted in the U-shaped plate and positioned above the sliding groove, a sliding block slidably mounted on the fixing rod, and a sliding block mounted on the sliding block. The bottom end of the sliding block extends into the sliding groove, and a cutting machine is rotationally mounted at the top of the sliding block. The threaded rod is rotationally installed in the sliding groove, one end of the threaded rod penetrates through the sliding block and the U-shaped plate and extends to the outside, the threaded rod is in threaded connection with the sliding block, and the threaded rod is rotationally connected with the U-shaped plate; the fixing range is expanded through the supporting plate, spinning paper tubes with different calibers can be fixed, and under the action of the threaded rod and the fixing rod, the sliding block can be prevented from shaking, so that the cutting machine is more stable, and errors caused by deviation during cutting are avoided.

The invention discloses a gearbox shaft rotating speed position sensor fixing device, which relates to the technical field of gearboxes, and solves the problem that a sensor fixing device is poor in compatibility with gearboxes of different sizes. The gearbox shaft rotating speed position sensor fixing device comprises a base. The base comprises a buffer column and a connecting block, and the top of the base is rotationally connected with the connecting block; the connecting block is rotationally connected with the buffer column; the top of the base is slidably connected with a shear fork frame; the shear fork frame comprises lower supporting strips, and the bottom end of the shear fork frame is connected with one lower supporting strip in a sliding mode; the top of the shear fork frame is slidably connected with a fixing seat; the fixing seat comprises a sliding seat, a fixing column and a fixing strip, and the sliding seat is slidably connected to the middle of the fixing seat; and the top of the fixing seat is slidably connected with a fixing column. The compatibility of different gearbox fixing hole sites is enhanced through the slidable fixing strips and the supporting seats.

The utility model relates to the technical field of medical auxiliary instruments, in particular to a lumbar postoperative body position fixator which comprises a front panel corresponding to the front face and a back panel corresponding to the back face, the front panel corresponds to the back panel in position, and side face fixing plates are arranged on the opposite faces of the front panel and the back panel. Guide columns are arranged on the opposite faces of the two side face fixing plates, and first rectangular grooves and second rectangular grooves are formed in the side face fixing plates. Through cooperation of the front panel, the back panel and the side fixing plates, the front panel and the side fixing plates form a structure located on the front face of the body, the back panel and the side fixing plates form a structure located in the range of the body, and the front panel and the side fixing plates are combined to form a lumbar vertebra fixing structure. The distance between the front face plate and the side face fixing plate and the distance between the back face plate and the side face fixing plate can be adjusted, so that the body position fixing device can adapt to patients of different figures and is high in universality, and compared with a traditional body position fixing device, the fixing range of the body position fixing device is greatly widened.

The milling clamp comprises a base, a machining table is fixedly connected to the end face of the base, a first positioning seat is fixedly connected to the left side of the machining table, a second positioning seat is fixedly connected to the right side of the machining table, and a connecting rod small end fixing structure is installed on the edge of the left side of the machining table. By installing the connecting rod big end fixing structure, the sliding block slides in the sliding groove according to the size of the big end of the connecting rod, and the height position of the second pressing plate is adjusted according to the thickness of the connecting rod till the second pressing plate presses the big end of the connecting rod. The sliding block can be detached in a sliding mode and reinstalled at a proper position to fix the large end of the connecting rod, the installed connecting rod small end fixing structure enables the clamping plate to be extruded at the small end of the connecting rod through adjustment, then the connecting rod fixing range is widened, and the connecting rod small end fixing structure and the connecting rod large end fixing structure are matched with each other to fix the large end of the connecting rod. And therefore, the stability of the connecting rod is improved.

The utility model provides a cargo fixing device for freight storage, and relates to the technical field of freight storage devices, the cargo fixing device comprises a carrier, a fixing mechanism is arranged on the carrier, the fixing mechanism comprises two placing grooves and two U-shaped plates, sliding grooves are formed in the two sides of the inner walls of the two placing grooves, and the U-shaped plates are arranged in the sliding grooves. And a sliding block is slidably connected to the interior of each sliding groove, rectangular plates are arranged in the two first rectangular grooves, two symmetrical second rectangular grooves are formed in the opposite faces of the two rectangular plates, and hand screwing bolts penetrate through the inner walls of the two grooves of each concave plate in a threaded mode. According to the cargo fixing device, the fixing mechanism is arranged, so that cargoes on the carrier can be quickly fixed and unfixed, the working time and workload of workers are reduced, the using effect of the cargo fixing device is improved, and meanwhile the using efficiency of the cargo fixing device is improved.

The utility model relates to the technical field of numerical control machine tools, and discloses an anti-shock cutter handle for a numerical control machine tool, which comprises a cutter handle main body, a first through hole is arranged in the cutter handle main body, a threaded limiting cylinder is arranged on the inner top wall of the first through hole, and an annular limiting hole communicated with the first through hole is arranged in the cutter handle main body. A cutter with one end extending to the bottom of the cutter handle body is arranged on the inner wall of the threaded limiting cylinder, and an anti-vibration assembly tightly attached to the outer portion of the cutter is arranged at the bottom of the cutter handle body. According to the anti-shock cutter handle for the numerical control machine tool, the limiting clamping assembly is arranged, a threaded rod is rotated to drive an upper threaded block and a lower threaded block to move relatively, and under the cooperative use of the upper threaded block, the lower threaded block, a connecting rod and clamping plates, the left clamping plate and the right clamping plate move relatively to be clamped and limited with a cutter, and looseness caused by connection between the cutter and a threaded limiting cylinder is avoided; and the practicability of the device is further improved, and workers can use the device conveniently.

The invention discloses a piezoelectric material electrode polarization clamping device. The clamping and positioning mechanism of the invention can simultaneously clamp and position multiple piezoelectric materials to be polarized, and the clamp support positioning and locking mechanism can clamp and position The positioning mechanism is locked and positioned so that the clamping and positioning mechanism can be replaced, so that multiple piezoelectric materials to be polarized can be loaded, unloaded and replaced at the same time, which can effectively improve the efficiency of loading and unloading, and improve the efficiency of electric polarization. The present invention can be used in During electric polarization, another external clamping and positioning mechanism is used to clamp the piezoelectric material to improve the convenience of use; the present invention supports the positioning and locking mechanism by setting the clamp, and uses two support plates to support the clamping and positioning mechanism. The distance between the two support plates is adjusted by rotating the knob, and a fixing device is provided, and the pressing device of the fixing device can press and fix the clamping and positioning mechanism by rotating the knob, the fixing range is large, and the operation is simple.

The utility model relates to the technical field of garment processing, in particular to an ironing workbench for garment fabric processing, the ironing workbench for garment fabric processing comprises an ironing table and a sliding pressing assembly, the bottom end of the ironing table is connected with an air suction pipe, and the front wall and the rear wall of the ironing table are both provided with movable sliding rails; the sliding pressing assembly is arranged at the top end of the outer side of the movable sliding rail, the sliding pressing assembly comprises a sliding connecting block and a supporting frame, and the supporting frame is connected to the outer side of the sliding connecting block; the device has the beneficial effects that the direction is adjusted and pressing is carried out through sliding connection between the movable sliding rail and the sliding pressing assembly, the fixing range of cloth is widened, then the applicability of the device is improved, the sleevelet ironing assembly is adjusted outside the adjusting rod, then the outer side of the sleevelet ironing assembly is elastically supported through the elastic supporting assembly, and the practicability of the device is improved. And the cloth sleeved outside can be expanded, so that the flattening effect is conveniently achieved, and the ironing efficiency is improved.

The invention discloses a driving speed change device for agricultural machinery. The driving speed change device comprises a push rod, a receiving barrel, a harvesting head, a guide revolving body and a boosting wheel, wherein the push rod is welded on the outer surface of a bottom fixed plate; the receiving barrel is arranged on the upper surface of the bottom fixed plate; the guide revolving body is driven to move by a driving transmission box in order to harvest external Chinese chives; a rotary box body inside the driving transmission box is driven to rotate together; the fixing range ofan extension main core is expanded by a surface core; and under the external stress, an internal inclination fixed core fixed by a fixing ball extends by an inclination angle, and an inclination sidedrives an ejector headers against the inclination fixed core at certain hardness, so that an outer layer is subjected to certain inclination guide fixing. Contact force is uniformly born by a spreading side and a protection rubber body to drive a middle fixed column to move, so that the collision force is variable during internal driving speed change. The buffering depth is adjusted according to the collision distance and the force, so that deformation and loosening after long-time collision and contact are prevented.

The side edge pressing assembly for the stainless steel sheet metal part recessing machine comprises an operation table, supporting legs are installed on the two sides of the bottom end of the operation table, a containing plate is arranged on the front side of the upper end of the operation table, two bottom columns of a symmetrical structure are installed on the rear side of the upper end of the containing plate, and the bottom columns are arranged on the upper end of the operation table. A connecting column is arranged in the bottom column, and a top plate is arranged at the top end of the connecting column. The adjusting mechanism is arranged between the placing plate and the top plate, the height of the placing plate and the height of the top plate can be adjusted by rotating an adjusting cylinder, then two fixing devices are used for further adjustment, the height can be adjusted in two directions, the application range of the pressing assembly is widened, and the practicability of the pressing assembly is improved. The fixing devices are arranged on the front side and the rear side of the top plate correspondingly, the two fixing plates are of an arc-shaped structure and a rectangular structure correspondingly, selective use can be conducted according to the shape of the sheet metal part, and then the fixing range of the sheet metal part is enlarged.

The invention discloses a village residential area land intensive utilization model, which is characterized in that a scouring mechanism, an anti-blocking mechanism and a seat assembly are respectively arranged on a sand table device of the village residential area intensive utilization model, and the three mechanisms are independently used or cooperatively used, so that the fatigue of a user caused by standing for use for a long time can be solved; in addition, the upper portion of the sand table is rotatable, a user can observe in all directions only by rotating the sand table, in addition, a flushing mechanism and an anti-blocking mechanism are arranged above the sand table, when building points above the device need to be replaced, sand above the device can be loosened through the flushing mechanism, it is avoided that caking is difficult to clean, and the device is convenient to use. An anti-blocking mechanism at the lower part can seep excessive water at the lower part, so that the incorrect proportion of water to sand is prevented, and the whole sand table is provided with a rotatable sand table bottom plate at the upper part and a double-layer fixed inclined plane frame capable of adjusting the height of the telescopic main shaft at the lower part; and the problem of rollover caused by unequal weight above when the position height of the sand table bottom plate is adjusted is avoided.

The utility model discloses a building structure reinforcing device, which relates to the technical field of building structures and comprises a reinforcing transverse plate, the left side of the top of the reinforcing transverse plate is fixedly connected with an angle adjusting component, and the right side of the top of the reinforcing transverse plate is fixedly connected with two reinforcing vertical plate fixing components which are symmetrical front and back. A first reinforcing vertical plate is rotationally connected between the opposite side walls of the two reinforcing vertical plate fixing assemblies. The second reinforcing vertical plate can slide in the first reinforcing vertical plate, kidney-shaped holes are formed in the front side and the rear side of the second reinforcing vertical plate, the first bolts arranged on the front side and the rear side of the first reinforcing vertical plate are adjusted to firmly abut against the inner walls of the kidney-shaped holes, the device is suitable for relatively fixing different positions of a building, the application range of the device is further expanded, and the practicability is high. The included angle between the reinforcing transverse plate and the first reinforcing vertical plate can be changed through the angle adjusting assembly and the reinforcing vertical plate fixing assembly, the building structure is further reinforced, and meanwhile different angles between the building structures are adapted.

The invention provides a dustproof protection device for a rare earth permanent magnet synchronous motor. The dustproof protection device includes a motor body, wherein a dustproof protection mechanism is fixed on the motor body; a support mechanism is welded and fixed at the lower end of the motor body; the support mechanism is located under the dustproof protection mechanism; the dustproof protection mechanism includes upper snap rings, lower snap rings, a connection strip block, micro fans, an ear plate, an arc guide rail, a dustproof net 1, elastic rubber sleeves, threaded rods, nuts, a handlebar and a dustproof net 2; and the support mechanism comprises a hollow plate, a base, an open slot 1, a connection plate, an open slot 2, limiting blocks, a support plate, a telescoping plate, alimiting groove opening and a through hole. Compared with the prior art, the dustproof protection device for a rare earth permanent magnet synchronous motor has the following advantages: achieving theaim of dustproof and shock absorbing protection, improving the use effect, facilitating carrying, improving the heat dissipation effect, achieving the aim of height adjustment, and expanding the fixed range so as to improve the fixing stability.