43results about How to "Reasonable design structure" patented technology

The novel tap hole structure comprises a furnace shell, an iron notch frame is installed on the side face of the furnace shell and located at the position of a blast furnace iron notch, and a plurality of prefabricated parts extending towards the interior of the furnace shell are arranged in the center of the interior of the iron notch frame. The multiple prefabricated parts are connected end to end, stemming channels penetrating through the iron notch frame are formed in the prefabricated parts, and first protruding parts which protrude outwards and are evenly arranged are arranged outside the prefabricated parts; the mud sleeve structure is reasonable in design structure and convenient to use, the mud sleeve structure formed by the prefabricated part is adopted to replace an existing mud sleeve structure formed by laying refractory bricks and pouring refractory materials in an iron notch area, the service life of the iron notch area can be prolonged on the premise that the thermal shock stability and the structural stability of the iron notch area are improved, and the service life of the iron notch area is prolonged. And the maintenance cost rise caused by frequent damage is avoided, and the normal working requirement of the blast furnace is met.

The invention relates to the technical field of photoelectric sensor production, and discloses a debugging platform for designing a photoelectric sensor, and the platform comprises a detection platform which is provided with an emitting through hole and a receiving through hole, the emitting through hole is used for the light emitted by a light emitter to pass through, and a light receiver receives a light signal through the receiving through hole; the transmitting end lens adjusting module comprises a first cylindrical part used for installing a transmitting end lens and a vertical adjusting assembly used for driving the first cylindrical part to move along the center line of the emitting through hole; the receiving end lens adjusting module comprises a second barrel-shaped part used for installing a receiving end lens and a transverse adjusting assembly used for driving the second barrel-shaped part to transversely move, and the moving direction of the second barrel-shaped part is perpendicular to the direction of the center line of the receiving through hole; and the detection circuit board is mounted on the detection table and is electrically connected with the light emitter and the light receiver respectively. According to the debugging platform for designing the photoelectric sensor, the photoelectric sensor with a more reasonable structure can be designed.

The utility model relates to a sliding heat preservation supporting device of a large-diameter collecting tube, which comprises a heat insulation component, a supporting component and two guide rail plates, and the two guide rail plates are horizontally, oppositely and fixedly arranged; the supporting assembly is installed on the two guide rail plates and connected with the two guide rail plates in a horizontal sliding mode. The heat insulation assembly is fixedly installed on the supporting assembly. The utility model has the beneficial effects that the structure is simple, the bearing capacity is strong, the construction is convenient, the production and construction period is shortened, the economic benefit is greatly improved, and the problem of thermal displacement generated by the stress of the high-temperature collecting tube with a larger diameter is solved.

The present invention relates to an underwater stripping device for radioactive metal channels, belonging to the field of nuclear, biological and chemical safety protection technology. The device comprises an underwater stripping device body, a control cabinet, a compressed air system and a special water tank. The special water tank is sealed on four sides and the bottom, and is open at the top. When in use, it is placed in a spent fuel storage pool. The underwater stripping device body comprises a rotating lifting assembly and a cutting unit. The rotating lifting assembly is arranged on the top of the special water tank. The rotating lifting assembly comprises a fixed operating frame, a rotating unit and a clamping lifting unit. The fixed operating frame provides support for the rotating unit and the clamping lifting unit. The rotating unit is used to control the rotation of the process pipe. The lower end of the clamping lifting unit is connected to the cutting unit. The cutting unit is arranged inside the special water tank. The lifting and lowering of the cutting unit is controlled by the clamping lifting unit, so as to realize cutting of process pipes of different lengths. The device provided by the present invention can solve the problem of spent fuel leakage in the underwater thermal cutting process.

The present invention belongs to the technical field of anti-blocking equipment, and relates to an anti-blocking device for an integrated pump station, characterized in that it includes a water inlet pipe, a reaction box, a crushing component, a filtering component and a drain pipe, the reaction box is provided with a water inlet pipe and a drain pipe on both sides, the reaction box and / or the water inlet pipe are provided with the crushing component, and the reaction box and / or the drain pipe are provided with the filtering component. The beneficial effects of the present invention are as follows: through the crushing component and the filtering component, the large impurities in the sewage are first crushed and then filtered, and the blockage caused by large and more impurities is reduced, which saves costs; the angle of the pump station to extract sewage is adjusted by the adjustment component, so that the pump station can adapt to different working environments and can fully extract the sewage; the structural design is reasonable, the operation is simple, the efficiency of classifying and processing impurities is high, the blockage of the pump station by impurities is reduced to the greatest extent, and the service life of the pump station is extended.

The utility model relates to a children's pushchair wheel directional structure belongs to children's pushchair production technical field. Including front support and pushchair wheel component, the upper and lower ends of front support are connected with front leg joint and front wheel seat respectively, the cavity of front leg joint is rotatably provided with cam, the linkage that is matched with cam is set up in the front support, the directional bolt that can move between directional locking position and directional unlocking position is slidably arranged in the plug of wheel seat, the directional lock hole that is matched with directional bolt is set up on pushchair wheel component, the transmission of linkage is between cam and directional bolt, through the rotation operation to cam, makes directional bolt between directional locking position and directional unlocking position displacement. The utility model has the following beneficial effects: the structure of linkage is reasonable, and the reliability is higher, and the service life is longer, makes product whole design structure reasonable, and the conception is ingenious, has good practicality, has essential characteristics and progress compared with prior art.

The invention relates to a double-acting torque driven vibration well cementation float shoe which comprises an upper connector and a lower connector. The stator assembly is in threaded connection with the upper joint and is used for changing the flowing direction of the cement fluid in the stator assembly; and the rotating assembly is rotatably connected with the stator assembly and is used for rotating on the basis of changing the flowing direction of the cement fluid to generate axial vibration and radial vibration. The accident rate of well cementation operation under complex working conditions can be reduced, and the well cementation quality is improved; meanwhile, the tool is simple in structure, stable in vibration, convenient to assemble and manufacture, long in service life and high in applicability.

The utility model provides a small-sized simulation mine hoist for a friction liner test. The small-sized simulation mine hoist comprises a rack; a rotatable hoist drum; the friction liners are installed on the outer wall of the winding drum, the multiple friction liners are connected end to end and surround the circumferential direction of the winding drum, and at least two rope grooves are formed in the outer surface of each friction liner; the repairing mechanism comprises a repairing tool which can freely move in the horizontal direction and can rotate; according to the utility model, the design structure is reasonable, the mini mine hoist similar to the actual equipment structure is designed to test and simulate the use of the friction liner, the cost is low, the potential safety hazard is small, the data such as the rotating speed and the load of the hoist drum can be effectively controlled, and the test precision is improved; in addition, the repairing tool is arranged on one side of the hoist winding drum, the rope groove can be rapidly repaired under the condition that the rope groove of the friction liner is abraded and the friction liner is not detached, and the beneficial effects of being convenient to operate and high in working efficiency are achieved.

The invention discloses a clamping mechanism and a wafer cleaning device.The clamping mechanism comprises a plurality of clamping assemblies used for clamping wafers, each clamping assembly comprises a driving part and a clamping part, the clamping parts are arranged on a supporting table, and the driving parts are located below the clamping parts and used for driving clamping jaws of the clamping parts to swing; the multiple clamping assemblies are evenly distributed in the circumferential direction of the supporting table, and every two clamping assemblies are oppositely arranged to form a plurality of clamping sets. The multiple clamping sets have at least two clamping jaw swing angle ranges. By adopting the technical scheme, the defect that the wafer is easily jacked by the clamping jaw in the process of feeding the wafer through the manipulator in the prior art is overcome, and the tolerance to the transverse stroke error of the manipulator is remarkably improved, so that the manipulator can better adapt to the deviation in actual operation, the smoothness of the clamping process is ensured, and the working efficiency is improved.

The utility model provides a sintering air bellow wear-resistant material conveying device which comprises a bottom frame assembly with the height capable of being adjusted in a lifting mode, a conveying frame with one end hinged to the bottom frame assembly is installed above the bottom frame assembly, and a driving piece used for adjusting the inclination angle when the conveying frame works is arranged between the conveying frame and the bottom frame assembly. Conveying shafts are installed at the two ends of the conveying frame, and a conveying belt is arranged on the two conveying shafts in a winding mode. The conveying frame is reasonable in design structure and convenient to use, the lifting function of the conveying frame can be achieved through the bottom frame assembly at the bottom, meanwhile, the height difference between the two ends of the conveying frame can be solved through the oil cylinder, and the conveying frame has the advantages of being flexible to adjust and wide in application range. Besides, the conveying shaft with the conical part is matched with the V-shaped structure of the conveying belt, so that the conveying belt can be always arranged in the center of the conveying shaft, the problem of displacement is avoided, normal work of the conveying device is guaranteed, and the service life of the conveying device is prolonged.

The invention discloses a high-temperature physical property measuring instrument, comprising a bed, an operating platform is fixedly installed on the upper surface of the bed, a furnace is fixedly arranged at the center position of the upper surface of the operating platform, a sample tube for placing samples is arranged on one side of the furnace, an axial fine-tuning device for driving the sample tube with the samples to rotate along its own axis is arranged at the end of the sample tube, a sample fine-tuning slide is installed below the axial fine-tuning device, and a mobile sample feeding device for driving the sample fine-tuning slide, the axial fine-tuning device and the sample tube to reciprocate along the length direction of the operating platform is arranged below the sample fine-tuning slide. The invention has a reasonable design structure and is easy to use. A plc control system is adopted to automatically operate the measuring instrument, and the operation is simple. The axial fine-tuning device can be used to perform horizontal rotation adjustment on the sample, and the sample position can be fine-tuned by using the sample fine-tuning slide.

The utility model relates to a novel stem pulling roller and a corn harvester, the stem pulling roller comprises a roller and a plurality of blades, the plurality of blades are uniformly and fixedly arranged on the roller at intervals along the circumferential direction of the roller, and respectively extend along the axial direction of the roller; the rear ends of the blades extend out of rear end extending parts respectively, the rear end extending parts are located outside the rear end of the roller respectively, and the rear ends of the rear end extending parts extend to the inner side of a rear sliding plate fixedly installed on the rack respectively. The front ends of the plurality of blades respectively extend to form front end extension parts, and the plurality of front end extension parts respectively extend to be flush with the front end of the roller. The utility model has the beneficial effects that the structure is simple, the design is reasonable, the working length of the stem pulling roller can be effectively increased, the stem pulling stroke can be improved, meanwhile, the occurrence of rear end blockage faults can be effectively reduced, the adaptability of the equipment in mountainous and hilly areas is improved, and the reliability and the competitiveness of products are improved.

The invention provides a load simulation test device for a bearing retainer. The load simulation test device comprises a workbench; the movable part is movably mounted on the surface of the workbench, and the bearing retainer and the roller can be placed above the movable part; the pressurizing part is arranged above the movable part in a liftable manner and is used for applying pressure to the roller above the movable part when the movable part moves; a ballast member which is installed below the pressing member and forms, with the movable member, a raceway for accommodating the cage and the roller; the device is reasonable in design structure, on one hand, the actual rotation radius of the retainer during working can be simulated, the actual working condition is met in size, and on the other hand, the roller can be pressed through the pressurizing piece to move in the pressed state, so that the actual stress state of the retainer can be simulated, and the working efficiency of the retainer is improved. After the retainer is damaged or broken, the actual service life of the retainer can be calculated, and the method has the advantages of being easy to operate and high in precision.

The utility model provides a perforated plate section bar combined type grating decoration frame, which is characterized in that vertical edges on the inner side and the outer side of a perforated metal plate on two side surfaces of the grating decoration frame are respectively connected with a U-shaped connecting piece and a Z-shaped connecting piece in a hidden manner, and the U-shaped connecting piece and the Z-shaped connecting piece are respectively inserted into an inner opening section bar and an outer opening section bar and are connected through screws; the upper end and the lower end of the inner opening profile and the upper end and the lower end of the outer opening profile are connected to the connecting structures at the upper end and the lower end respectively through the inner opening steel adapting pieces and the outer opening steel adapting pieces at the upper end and the lower end, and all the connecting screws are connected in a hidden mode. The processing and mounting quality control is easy, the replaceability is good, and the like, and the grating decoration frame has wide application space and good popularization prospect in the design and mounting of the grating decoration frame in the field of constructional engineering.

The utility model provides air brick casting molding equipment which is characterized by comprising a top plate, a bottom plate and a conical mold which is arranged between the top plate and the bottom plate and is provided with an opening in the circumferential direction, and the opening of the conical mold is arranged in a penetrating mode from the upper end face to the lower end face of the conical mold. A plurality of open grooves are formed in the edge positions of the surfaces of the top plate and the bottom plate, the open grooves are evenly distributed around the centers of the top plate and the bottom plate, cylindrical heads with the same number as the open grooves are arranged on the outer end faces of the top plate and the bottom plate, and the cylindrical heads are installed between every two adjacent open grooves in the direction close to the centers of the top plate and the bottom plate. The punching device is reasonable in design structure and convenient to use, the open grooves capable of containing the plastic strips are designed in the edges of the top plate and the bottom plate, so that a worker can rapidly wind the plastic strips on the top plate and the bottom plate in a winding mode, the problem that a large amount of time is consumed during punching is solved, and the punching efficiency is improved. And the working efficiency can be improved.

The utility model provides a fire-resistant prefabricated member with a rapid cooling function. The fire-resistant prefabricated member comprises a fire-resistant base body; the metal base is fixedly connected to one side of the non-working surface of the refractory base body, and a hollow cooling cavity is formed in the metal base; the metal fins are fixedly connected to the surface of the base and extend towards the interior of the fireproof base body, and the extending depth is 30%-70% of the thickness of the fireproof base body; according to the utility model, the design structure is reasonable, the perfect combination of efficient cooling and long-acting service is realized through the design of a metal and refractory material composite structure, a cooling system formed by the metal base and the metal fins can quickly lead out heat accumulated in the refractory base body, and the heat dissipation efficiency can be obviously improved; besides, the thermal stress between the metal and the refractory material is effectively relieved through the reinforcing layer and the wrapping layer, the thermal shock resistance and the structural stability of the prefabricated part are greatly enhanced, and the metal assembly subjected to antioxidant treatment shows excellent durability in a high-temperature corrosion environment.

The utility model provides an intelligent composite air cooling device which comprises an outer shell, a draught fan, a dry type air cooling unit, a water collecting device, a spraying pipe, an evaporative cooling unit and a circulating water tank are sequentially arranged in the outer shell from top to bottom, and the dry type air cooling unit is communicated with the evaporative cooling unit. A working medium can be led out after sequentially passing through the dry-type air cooling unit and the evaporative cooling unit, and a medium leading-out pipe communicated with the evaporative cooling unit is mounted on the outer shell; the fresh air channel is arranged between the dry-type air cooling unit and the water collecting device, so that outside air can penetrate through the electric shutter to enter the fresh air channel, newly introduced cold air and wet and hot air penetrating through the water collecting device are mixed to achieve the cooling purpose, the original logarithmic temperature difference of an air cooling section is improved, and the cooling efficiency is improved. Meanwhile, the total heat load of the evaporation section can be reduced, the water consumption of the evaporation section is reduced, and the total amount of water vapor entering the air cooling section is reduced.

The utility model discloses a pull valve for a wire drawing machine, which relates to the technical field of wire drawing machines and comprises a wire drawing machine case, a front plate component is mounted on the wire drawing machine case, a central shaft is rotatably connected in the front plate component, a transmission component is mounted on the front plate component, and a plurality of pull valve components are inserted into the transmission component; according to the device, valve wire outlet holes with different hole diameters are designed, flexible adaptation to metal wires with different diameters is achieved, the universality and flexibility of equipment are improved, the same equipment can process the metal wires with different specifications, the production cost and the equipment investment are reduced, and the production efficiency is improved. And moreover, the overall design structure is compact and reasonable, all parts are well matched, so that the operation of the equipment is more stable and reliable, and the equipment has the capability of flexibly adapting to metal wires of different specifications, the modular design, the auxiliary equipment configuration and the stable and reliable performance.

The invention relates to a humidifier air duct structure which comprises a humidifier machine shell, an air inlet is formed in the surface of the humidifier machine shell, and an inner cavity of the humidifier machine shell communicates with the outside through the air inlet; the rotating wheel assembly is rotatably installed at the position of an inner cavity of the humidifier machine shell, a hollow cavity is formed in the rotating wheel assembly, and a plurality of ventilation gaps for communicating the outer space of the rotating wheel assembly with the hollow cavity are formed in the circumferential direction of the rotating wheel assembly; the fan is arranged on one side of the hollow cavity of the rotating wheel assembly, and an air inducing opening of the fan is communicated with the hollow cavity; the humidifier is reasonable in design, air outside the humidifier sequentially passes through the air inlet of the humidifier shell, the ventilation gaps, the hollow cavity of the rotating wheel assembly, the draught fan and the air outlet of the draught fan in an air inducing mode to form a surrounding type air channel, and therefore air can evenly pass through each ventilation gap in the rotating wheel assembly, and the ventilation effect is improved. And the evaporation area is effectively increased, the humidification amount is multiplied, meanwhile, effective utilization of the rotating wheel assembly is guaranteed, and the humidification efficiency is remarkably improved.

The invention provides a non-invasive respirator mask for nasal feeding patients, which comprises a connecting assembly, a sealing assembly and a wrapping assembly, the connecting assembly is composed of a connecting mechanism and a blocking mechanism, the blocking mechanism and the connecting mechanism are respectively located on the inner side and the outer side of the mask assembly, and the sealing assembly is movably sleeved with the surface of a nasal feeding tube. The sealing assembly is embedded into the connecting mechanism, and one end of the wrapping assembly is attached to the surface of the connecting mechanism. The breathing mask is provided with the through hole, the nasal feeding tube is led out of the through hole, the connecting assembly is arranged on the breathing mask, the nasal feeding tube can be rapidly connected, the use performance of the breathing mask is improved, the sealing assembly and the wrapping assembly which are detachable can be conveniently and rapidly dismantled after use, and the breathing mask is convenient to use. The problem that the nasal feeding tube is possibly pulled is solved, the function of fixing the nasal feeding tube in the using process is provided, it is ensured that the nasal feeding tube is stably fixed while it is ensured that a nasal feeding patient wears the breathing mask without being affected, and the using effect of the breathing machine mask is improved.

The utility model provides a steel ladle brick strength detection device which comprises a base, the upper surface of the base is provided with a protruding limiting protruding strip with three faces surrounded, a bottom plate is installed in the space defined by the limiting protruding strip in a sliding mode, a pressing plate capable of ascending and descending is arranged above the bottom plate, and the bottom plate is provided with a first plane parallel to the horizontal plane. The other side, away from the first plane, of the bottom plate is provided with a concave part with the center of the inner bottom plate concave, the pressing plate is provided with a second plane parallel to the horizontal plane, the other side, away from the second plane, of the pressing plate is provided with a protruding part protruding towards the outer portion of the pressing plate, and under different use conditions, the second plane and the protruding part of the pressing plate can face downwards. Therefore, the bricks are pressed; the brick strength detection device is reasonable in design structure and convenient to use, can realize brick strength detection by adopting the pressing plate and the bottom plate which can be quickly overturned up and down and can meet different positions of a brick, has the characteristic of convenience in disassembly and assembly, and can meet the detection requirements of different positions of the brick.

The present invention discloses a vibration transport device, including a vibration component, a driven component, an active component and a magnet group, wherein the vibration component contains goods; the driven component is connected to the vibration component; the active component is arranged on one side of the driven component, and a certain gap is arranged between the active component and the driven component; the magnet group includes a first mounting shell, a second mounting shell, and a magnetic part, and the magnetic part on the first mounting shell cooperates with the magnetic part on the second mounting shell. The vibration transport device provided by the present invention can realize the vibration conveying function normally and stably, and the operation is safe and reliable; there is no collision caused by linear motion, which reduces most of the friction loss during the rotation process, and greatly reduces noise and wear; the adjustment process is simpler and faster, and the parameters are strongly fixed and the effect reproducible; the active component and the driven component are independent of each other, with a high degree of modularization and convenient disassembly. The present invention has significant effects and is suitable for wide promotion.

The invention discloses a maintenance bin door winding device convenient to maintain for a nodular cast iron pipe, and belongs to the technical field of winding equipment, the maintenance bin door winding device comprises a gear motor and a driving shaft, and the driving shaft is composed of a first shaft part inserted into the gear motor and second shaft parts detachably connected to the two ends of the first shaft part. According to the maintenance bin door winding device convenient to maintain for the nodular cast iron pipe, the driving shaft of the winding device is designed into three sections which are detachably connected through the couplings, disassembly, assembly and maintenance of the speed reducing motor are very convenient, the maintenance efficiency of the speed reducing motor is improved, and the equipment maintenance time is shortened; and workers are effectively prevented from working in a high-temperature and high-humidity environment for a long time, and a powerful guarantee is provided for orderly production of the nodular cast iron pipes.

The utility model provides a combined air brick structure which comprises a shell with a conical structure, an upper brick body arranged at the upper part in the shell and a lower brick body arranged at the lower part in the shell, and further comprises a buffer layer arranged at a position between the upper brick body and the lower brick body and arranged to coordinate the thermal expansion difference between the upper brick body and the lower brick body, the upper brick body or the lower brick body is prevented from cracking; the reinforcer is arranged at the inner position of the integral structure formed by the upper brick body, the buffer layer and the lower brick body and is used for enhancing the bonding strength between adjacent interfaces; the air brick is reasonable in design structure, the thermal expansion difference of the upper brick body and the lower brick body is coordinated by arranging the buffer layer, the problem of brick body cracking caused by overhigh thermal stress under the high-temperature working condition is avoided, and the bonding strength of adjacent interfaces can be remarkably enhanced by utilizing the reinforcers, so that the overall structure of the air brick is more stable under the high-temperature working condition, and the service life of the air brick is prolonged. And the service life of the air brick is prolonged.

The utility model provides a sealing device for single pipe leakage test, which comprises a connecting piece used for being connected with a to-be-tested pipeline, one end of the to-be-tested pipeline can extend into the connecting piece and is fixedly connected with the connecting piece, the other end of the connecting piece is connected with a pressing connector, and a sealing ring is arranged in the pressing connector. One end of the sealing ring can be tightly attached to the pipeline to be detected when the pressing connector is in a screwed state, so that sealing is achieved, and the other end of the pressing connector is connected with a pressure detection assembly; the sealing device is reasonable in design structure and convenient to use, can replace a welding mode in the prior art to connect a single pipe opening with a water meter pipeline, can be quickly connected to the single pipe opening in a detachable mode, reduces the complexity of the leakage testing process, and improves the leakage testing efficiency. And the device has the advantages of being safe and convenient to use, quick and accurate to operate, labor-saving, easy to operate, capable of greatly improving the working efficiency, reducing the labor intensity, saving time and reducing the cost.

The utility model provides an auxiliary investigation device for forest fruit wild germplasm resources, which comprises an elastic band capable of being wound and installed at the position of a tree trunk, a box body is fixed in the middle of the elastic band, and a satellite positioning module, a temperature and humidity detection module, an illumination intensity measurement module and an image acquisition module are arranged on the box body. The box body is also provided with a tree circumference measuring device; the fruit tree investigation device is reasonable in design structure, can be fixed at the trunk position of a forest fruit, can realize accurate positioning of a fruit tree by adopting a built-in satellite positioning module, and avoids the problem that the fruit tree cannot be found; the temperature and humidity detection module, the illumination intensity measurement module and the image acquisition module are adopted to monitor environmental data around the fruit tree in real time, the tree circumference measurement device is adopted to accurately measure the growth change of the fruit tree, reliable data basis is provided for the growth condition of the fruit tree, and investigation, analysis and research of the fruit tree are facilitated.

The utility model provides an adjustable handrail which comprises a fixing support, a lifting frame capable of moving in the vertical direction is installed in the fixing support, a rotatable locking block is installed in the lifting frame, and the locking block can enable the lifting frame and the fixing support to achieve relative locking in the free state. A top block capable of sliding in the vertical direction relative to the lifting frame is further arranged in the lifting frame, and when the lifting frame moves to the upper limit position, the top block can drive the locking block to rotate so as to make contact with the locking state of the locking block; the top of the lifting frame is provided with a movable shell capable of moving in the horizontal direction. The armrest mechanism is reasonable in design structure and convenient to operate, the height adjustment of the armrest can be conveniently and quickly realized by adopting the structural design of the top block and the locking block, the horizontal position adjustment of the armrest can be met under the condition that the movable shell is driven in the horizontal direction, and the armrest mechanism has the advantages of low cost and low assembly difficulty.

The invention discloses a continuous dynamic male dog urine flow rate measuring device, which relates to the technical field of veterinary medicine and comprises a protective bag, a urine storage bag, a drawstring, an abutting structure, a communicating structure, a stretching structure, a limiting structure and a measuring structure. The device is connected with the rear leg of the male dog through the drawstring, and the communication and sealing of the urination catheter and the urine storage bag are realized by utilizing the drawing force of the rear leg during the movement of the male dog through a propping structure and a lever principle. Meanwhile, the urine storage bag is protected by the stretching structure and the limiting structure when the male dog runs or moves, so that urine is prevented from leaking out. The measuring structure is arranged between the protective bag and the urine storage bag, and the urine flow rate of the dog is continuously detected for 24 hours through the dynamic urine flow rate detection system. The device solves the problems that in the prior art, urine is prone to seeping out, and practicability is poor, and an accurate and stable detection means is provided for urodynamics research in the veterinary medicine field.

The invention discloses an ultrasonic excitation and acid fracturing integrated permeability enhancement coal seam enhanced extraction system, comprising an ultrasonic excitation and acid fracturing integrated drilling and delivery device, an ultrasonic control box, and a mixing liquid box. The invention also discloses an ultrasonic excitation and acid fracturing integrated permeability enhancement coal seam enhanced extraction method, comprising the following steps: step S1, collecting samples in the coal seam; step S2, constructing four extraction boreholes with different distances to the coal seam; step S3, performing gas concentration detection on the extraction boreholes; step S4, starting an ultrasonic transducer, starting a fracturing pump for fracturing; starting the ultrasonic transducer again; step S5, closing the fracturing pump after repeating step S4 five times, and then starting the ultrasonic transducer; step S6, performing gas concentration detection on all extraction boreholes. The invention has the advantages of mutual coupling of ultrasonic excitation and acid fracturing, improving coal body pore structure, increasing pore and fracture connectivity, promoting gas desorption, and improving coal seam gas extraction efficiency.

The utility model discloses a pit structure for detecting and debugging an automobile chassis, which relates to the field of automobile maintenance and comprises a target ground, a pit main body is arranged on the target ground, a stair part for workers to go in and out is arranged on one side wall of the pit main body, and a workbench is clamped on the inner bottom surface of the pit main body in a sliding manner. A plurality of placement grooves are formed in the bottom face of the pit body, hydraulic cylinders are fixedly installed in the placement grooves, reinforcing ribs are fixedly installed on the lower surface of the workbench, and a plurality of evenly-distributed lifting claws are fixedly installed on the sides, close to the stair component, of the reinforcing ribs. The structure can be used as a common ground when the structure is not used, personnel or other sundries are prevented from falling off, the safety of the device when the device is not used is guaranteed, the working table is lifted to the ground position, cleaning is more convenient, the interior of the pit body is kept clean, and harmful substances are prevented from damaging workers.