68results about How to "Guaranteed passability" patented technology

The present application discloses an intelligent driving decision-making method, a decision-making device, and a vehicle, which can be applied in the field of intelligent driving, including: identifying an object with uncertain intention (i.e., a game object) and its n road topologies, and determining the intention probability of the game object traveling along each road topology (a total of n), constructing a sampling game space including m game strategies, calculating the strategy cost of the m game strategies in each road topology (a total of n groups), determining n target strategy costs that meet preset conditions, and determining the decision result of the self-vehicle according to the target game strategy (one of the m). In the case of an object with uncertain intention, the present application uses the observed information to infer the intention probability of the object with unclear intention, and based on this, makes an uncertain interactive game decision to solve the best action of the self-vehicle, so that the self-vehicle can reasonably respond to the jump of the intention of the dynamic object, reduce unreasonable braking and mistaken rushing, and improve the riding comfort, safety, and passability of the self-vehicle.

The invention relates to a laser catheter with a developing ring anti-falling structure, the laser catheter comprises an outer sheath tube, an optical fiber bundle, a guide wire tube and a developing ring, the guide wire tube is arranged in the outer sheath tube, the optical fiber bundle is arranged between the outer sheath tube and the guide wire tube, and the outer sheath tube, the optical fiber bundle, the guide wire tube and the developing ring at the far end of the laser catheter are fixed through filling glue. The far end of the outer sheath tube is connected with the near end of the developing ring; the developing ring is of a hollow conical structure, and the diameter of the far end is larger than that of the near end. The invention further discloses a preparation method of the laser catheter. The preparation method comprises the steps of S1, prefabricating the developing ring assembly; s2, combining the developing ring assembly with the outer sheath tube assembly; s3, injecting glue; s4, curing is conducted; and S5, grinding. The developing ring is designed to be trumpet-shaped, so that the developing ring is prevented from falling off; in the glue injection process, a silica gel cap is adopted to be matched with a dispensing machine for glue injection, the silica gel cap prevents glue from flowing out to guarantee the clean environment, the dispensing machine accurately controls the glue outlet amount, and then the length of the curing area of the far-end working area and the passability of the guide pipe are guaranteed.

A novel steel wheel crawler-type highway-railway dual-purpose chassis mainly comprises a telescopic crawler-type chassis, a steel wheel device and a rotary platform. Connecting frames on the two sides of the telescopic crawler-type chassis can adjust the distance between the left crawler belt and the right crawler belt through telescopic oil cylinders, and the requirement that the whole machine walks in a ballastless track bed surface layer pit and the surface of a ballastless track plate and a ballast track bed is met. Steel wheel devices with power are arranged in front of and behind the working platform and are suitable for walking under the rail working condition after steel rails are laid; and by controlling the lifting oil cylinder of the steel wheel device, the steel wheel can fall off the rail and be suspended, so that the highway-railway dual-purpose running state is switched. A cab, a hydraulic system, an electrical system and different rail construction working devices can be carried on the working platform of the steel wheel crawler-type highway-railway dual-purpose chassis, and the steel wheel crawler-type highway-railway dual-purpose chassis has important significance on safe, efficient and convenient rail line construction and line operation overhaul and maintenance.

The invention relates to a laser catheter which comprises an outer sheath tube, an optical fiber bundle and a guide wire tube, the guide wire tube is arranged in the outer sheath tube, the optical fiber bundle is arranged between the outer sheath tube and the guide wire tube, and the outer sheath tube, the optical fiber bundle and the guide wire tube at the far end of the laser catheter are fixed through filling glue; metal powder is mixed in the glue, the area filled with the glue is a first developing area, and the glue mixed with the metal powder has the developing effect under X rays. The invention further discloses a preparation method of the laser catheter. The preparation method comprises the steps of S1, glue mixing; s2, injecting glue; s3, curing is conducted; and S4, grinding. A traditional developing ring is replaced by doping the metal powder in the glue at the far end of the laser catheter, and therefore the risk that the developing ring falls off is eradicated. In the glue injection process, the silica gel cap is adopted to be matched with the dispensing machine for glue injection operation, the silica gel cap can prevent glue from flowing out to guarantee the clean environment, the dispensing machine can accurately control the glue outlet amount, then the length of the curing area of the far-end working area is guaranteed, and therefore the passing ability of the catheter is guaranteed.

The present invention belongs to the technical field of suspended matter filtration, and specifically refers to a suspended matter sedimentation and separation device for sewage treatment, including a sedimentation tank, a support column, a slow-speed filtering mechanism and an anti-floating weight sensing mechanism, multiple groups of the support columns are arranged on the bottom wall of the sedimentation tank, the sedimentation tank is arranged with an upper opening, the slow-speed filtering mechanism is arranged on the sedimentation tank, the anti-floating weight sensing mechanism is arranged on the support column, and the slow-speed filtering mechanism includes a guiding mechanism, a filtering mechanism and a locking mechanism. The present invention provides a suspended matter sedimentation and separation device for sewage treatment that can not only finely filter suspended matter in sewage, but also ensure the passability of sewage when it flows through the filter net, and has the ability to monitor the impurities at the bottom of the sedimentation tank in real time.

This invention provides an intelligent vibration temperature control device for concrete pouring in hydraulic engineering, relating to the field of vibration equipment technology. It includes a main vibrating rod, a lower connecting support rod, an external temperature control hose, and a temperature control storage tank. The lower connecting support rod and the external temperature control hose are arranged in a ring array on the outer side of the main vibrating rod. The external temperature control hose and the temperature control storage tank are interconnected. The tail end of the lower connecting support rod is rotatably connected to a middle connecting rod, and the tail end of the middle connecting rod is rotatably connected to the head end of an upper connecting support rod. The middle connecting rod, the upper connecting support rod, and the lower connecting support rod together form a V-shaped linkage mechanism and are arranged in a ring array outside the main vibrating rod. The external temperature control hose maintains a V-shaped bend simultaneously. The external temperature control hose extends and moves away from the main vibrating rod, expanding the temperature control influence range and improving temperature control efficiency. This solves the problem that the fixed, close-fitting temperature control pipeline for vibration can only cool a very small area of ​​concrete in the center of the vibrating rod, resulting in a small temperature control influence range.

The utility model relates to medical instrument technical field, concretely is a kind of superhard guide wire, including mandrel, Tip head, first spring, second spring, first coating, second coating;The distal end of mandrel is provided with transition section and shaping section;Tip head is connected in the end of shaping section;First spring is sleeved on shaping section;Second spring is sleeved outside first spring, and one end extends to transition section, and second spring is provided with multiple connecting areas;The one coating is coated in second spring and the distal end of mandrel;Second coating is coated in Tip head and first coating outside, and extends to the distal end of mandrel.This embodiment's superhard guide wire, multiple connecting areas are provided on second spring, and the flexibility of multiple connecting areas can improve second spring, so that it can have better anti-unraveling capacity, to avoid stress concentration on first coating and second coating when mandrel is used, reduce the risk that coating is pulled apart and falls off, improve the controllability and safety of guide wire in surgical process.

The invention discloses a high-power connector with low resistance and high heat dissipation for quick connection, and relates to the field of connectors, the high-power connector comprises a support frame, reeds and busbar clamping bodies, the two busbar clamping bodies are assembled on the support frame, the busbar clamping bodies are integrally formed stamping parts, and the surfaces of the busbar clamping bodies are not provided with holes, so that the high-current passing capacity is ensured; a clamping space is formed between the two busbar clamping bodies, a reed is assembled between one end, far away from the clamping space, of each busbar clamping body and the supporting frame, a rear contact is formed at one end of each busbar clamping body, a front contact is formed at the other end of each busbar clamping body, and under the action of the reeds, the busbar clamping bodies are in contact with the supporting frame. The rear contacts of the two busbar clamping bodies are enabled to clamp the second busbar, the busbar clamping bodies are enabled to be unfolded by taking the rear contacts as rotating points, and the front contacts of the two busbar clamping bodies are enabled to clamp the first busbar, so that the problem of position errors of the first busbar and the second busbar caused by manufacturing tolerance or external reasons is solved, normal transmission of current is realized, and an abnormal interruption phenomenon is avoided.

The utility model relates to a vehicle middle seat and sleeping berth combination device, a middle seat assembly is arranged in a vehicle cab, a sleeping berth assembly is arranged right behind the middle seat assembly, the middle seat assembly and the sleeping berth assembly are both of an overturning folding structure, and the middle seat assembly is used for supporting the sleeping berth assembly in an unfolding state when in a folding state. The folding state of the sleeping berth assembly is used for providing a turnover space for the middle seat assembly; according to the utility model, the middle seat assembly and the sleeping berth assembly are combined; the functions of a middle seat and a sleeping berth are achieved, and meanwhile the passing ability in a vehicle cab is guaranteed.

The invention provides a blade point type small pipeline desilting centrifugal drill bit which comprises a drill bit body, a centrifugal rotating body and a torsion spring, the centrifugal rotating body is rotationally installed on a rotating shaft of the drill bit body, the torsion spring is installed on the drill bit body to provide torsion Ft to enable the centrifugal rotating body to be folded, and when the centrifugal drill bit rotates, the torsion Ft is driven by the torsion Ft to rotate. And under the action of centrifugal force, the centrifugal rotating body overcomes the torsion Ft to be opened. According to the small pipeline dredging device, different dredging diameters can be expanded according to the rotating speed after the small pipeline dredging device is shrunk and enters the inside through a variable-diameter bent pipeline, small pipeline dredging of pipelines with different diameters can be achieved, a power source and a driver are arranged outside the pipeline, and high-dose radiation can be resisted. The spent fuel post-treatment pipeline dredging device solves the problem of spent fuel post-treatment pipeline dredging, and guarantees passing ability and dredging thoroughness in narrow, variable-diameter, multi-turning and high-radiation pipelines.

The utility model discloses a tunnel ventilation branch pipe and a tunnel humidification and dust fall maintenance system, which comprise a connecting structure and a whistle telescopic pipeline in a vortex structure, and a plurality of secondary air outlets are arranged on the whistle telescopic pipeline. The connecting structure is used for being connected with the connecting end of the rolling whistle telescopic pipeline and the outer wall of a ventilation pipeline of a tunnel and used for controlling communication between the rolling whistle telescopic pipeline and the ventilation pipeline. The whistle rolling telescopic pipeline is used for stretching to abut against the two lining waist portions and being stable under the action of wind power when the whistle rolling telescopic pipeline is communicated with the ventilation pipeline and is used for rolling back to the scroll structure when no air enters the ventilation pipeline.

This invention discloses a fluidized bed hydrotreating catalyst, its preparation method, and its application. The hydrotreating catalyst includes a hydrotreating active metal component, a support, and optional auxiliary phosphorus. The support is a carbon-containing alumina composite support. The preparation method includes the following steps: (1) spheroidizing a first pseudoboehmite powder to obtain a first support precursor; (2) treating an aqueous solution of the first support precursor, an additive, and an organic polymer B to obtain a second support precursor; (3) treating the second support precursor, the second pseudoboehmite powder, and an acidic solution to obtain a third support precursor; (4) subjecting the third support precursor to low-temperature heat treatment to obtain a fourth support precursor; (5) mixing the fourth support precursor with an auxiliary solution, drying, and calcining to obtain an auxiliary-modified carbon-containing alumina composite support; (6) introducing a hydrotreating active metal component onto the composite support, followed by drying and calcining to obtain the fluidized bed hydrotreating catalyst.

The utility model relates to the technical field of anti-mosquito gates, and discloses an environment-friendly and clean anti-mosquito gate which comprises a municipal sewage discharge pipe and an anti-mosquito pipe, the bottom of the anti-mosquito pipe fixedly communicates with a filter pipe, the filter pipe and the municipal sewage discharge pipe are fixedly embedded, and the inner wall of the anti-mosquito pipe is fixedly connected with a closed ring. And the bottom of the closed ring is in contact with two closed plates. According to the environment-friendly and clean anti-mosquito gate, through the arrangement of a sealing ring and a sealing plate, the purposes that the sealing plate is opened downwards due to downward pressing of rainwater in rainy weather and the sealing plate is reset at the end of the rainy season can be achieved, smell of a municipal drainage pipe can be effectively prevented from spreading upwards, and through the arrangement of filtering holes, the purpose of filtering small impurities can be achieved; according to the device, mosquitoes and rats can be effectively prevented from passing upwards, a municipal sewage discharge pipe can be prevented from being blocked, impurities filtered by filter holes can be conveyed through the arranged packing auger, sewage pumping of a user is facilitated, the filter holes can be prevented from being blocked, and the passing ability of rainwater is guaranteed.

The utility model relates to the technical field of building construction, and discloses a sand screening device for building construction, which comprises a sand screening box, a U-shaped screen plate is placed on the inner side wall of the sand screening box, four reset plates are fixedly connected to the front inner side wall and the rear inner side wall of the sand screening box respectively, a reset rod is fixedly connected between every two adjacent reset plates, and the reset rods are fixedly connected to the left side wall and the right side wall of the sand screening box respectively. Each reset rod is connected with the screen plate close to the reset rod in an inserted mode, the face, close to the screen plate, of each reset plate is fixedly connected with a spring, each spring is in a reset state, and two vibration shafts are rotationally connected between the left inner side wall and the right inner side wall of the sand screening box through bearings. According to the sand screening device for building construction, through rapid rotation of a cam, a screen plate is extruded to move up and down in a reciprocating mode under limiting of a reset rod, the screening effect of a screen is achieved, in the screening process, a linkage beating shaft rotates to generate centrifugal force, a beating ball is thrown to continuously beat the bottom of the screen plate, and the screening effect is improved. Filtering holes of the sieve plate are prevented from being blocked through vibration, and the trafficability of the filtering plate is ensured.

The invention relates to the technical field of artificial fish reefs, and discloses an artificial fish reef and a throwing method based on a combined artificial fish reef, the artificial fish reef comprises a base, the base is provided with an inner reef body, an outer reef body, an intercepting rod and a channel dredging mechanism, the inner reef body is movably arranged in the outer reef body, and the outer reef body is fixedly installed on the upper surface of the base; according to the artificial fish reef, by arranging the outer reef body, the inner reef body and the intercepting rods, three layers of fish reef chambers are formed and used for growth of fish fries and juvenile fishes of different sizes, by arranging the inner reef body, the inner reef body can move up and down in the outer reef body, and a push plate and an insertion rod are driven to clean an outer reef access channel and an inner reef access channel; when the inner reef body moves, the lifting pressing base drives the intercepting blades to rotate, the situation that algae, shellfish and other organisms breed and grow among the outer reef access channel, the inner reef access channel and the intercepting rods to block the channels is avoided, cleaning of the artificial fish reef is facilitated, and the passing performance of the artificial fish reef is guaranteed.

The utility model relates to engineering equipment accessory technical field discloses a kind of excavator track shoe with anti-skid tooth, first refitting type track shoe includes L type main plate, convex part, track shoe pivot and butt joint part, convex part and butt joint part are placed respectively in the front and rear end of L type main plate, the side wall borehole insertion track shoe pivot of convex part, gap for next stage refitting line track shoe butt joint part insertion is set between two convex parts, butt joint groove for next stage refitting line track shoe convex part insertion is set between two butt joint parts. Refitting type track shoe connection system provides stable basis for anti-skid protruding tooth mechanism, so that anti-skid protruding tooth can effectively play a role under various terrain;With refitting type track shoe connection system jointly ensure the stability and passability of excavator under complex terrain;Both common action improves the overall performance and work efficiency of excavator, reduces failure rate and maintenance cost.

The utility model relates to a drum separator, and aims to solve the technical problem that the separation effect of the drum separator is affected due to the fact that screen holes of a drum are easily blocked by wet sand when an existing drum separator works and is used, the drum separator comprises a separator body and a cleaning mechanism, the separator body comprises a workbench, the workbench is provided with the drum, and the cleaning mechanism is arranged on the workbench. Protective covers are arranged on the two sides of the roller, and the cleaning mechanism is arranged on the top of the roller; the motor drives the long shaft to rotate, the long shaft drives the belt to rotate, due to the effect of centrifugal force, the belt can straighten and hit the surface of the roller when rotating, sand blocked in screen holes of the roller is knocked down, and the passing ability of the screen holes of the roller is guaranteed. The other end of the L-shaped clamping plate is moved upwards, one end of the L-shaped clamping plate rotates on the baffle, the spine is separated from the belt, the damaged belt can be taken down, one end of a new belt is inserted into a clamping space formed by one end of the L-shaped clamping plate and one end of the bottom plate, the L-shaped clamping plate is rotated downwards, the spine is inserted into one end of the belt, and the new belt is fixed.

This disclosure provides a cleaning module and cleaning equipment, relating to the field of cleaning equipment technology. The cleaning module includes a module support, a drive motor, and a heat sink. The drive motor is mounted on the module support and drives the target object of the cleaning module; the heat sink is located on the outer periphery of the drive motor, and liquid flows through the heat sink; wherein, with the direction perpendicular to the surface to be cleaned when the cleaning module is in working state as the height direction of the cleaning module, the upper side of the drive motor has a clearance area, and the heat sink is positioned to avoid the clearance area. This disclosure ensures effective heat dissipation for the drive motor while avoiding increasing the height of the cleaning equipment, ensuring the convenience and accessibility of the cleaning equipment, and facilitating the cleaning equipment to clean low areas, such as under sofas and beds.

The present invention is a standing platform for a human-machine collaborative cargo conveyor. The main body is a standing platform, which is installed on the front part of the frame of the human-machine collaborative cargo conveyor; it includes a base, which is installed in front of the frame; a top seat, which is located above the base; a lifting mechanism, which is connected between the base and the top seat, and controls the top seat to move up and down relative to the base; a standing platform, which is located above the top seat and is connected to the top seat at the front and back sides, and a chamber is formed between the standing platform and the top seat; a sliding platform, which is located in the chamber, is provided with two sliding platforms and the two sliding platforms are distributed left and right, and the sliding platforms are slidably installed on the surface of the top seat; and a transmission mechanism, which is connected to the two sliding platforms, drives the two sliding platforms to move toward or in the opposite direction; the transmission mechanism drives the two sliding platforms to move toward each other so that they are completely retracted into the chamber, or drives the two sliding platforms to move in the opposite direction so that they extend out of the left and right ends of the standing platform. The width and height of the standing platform can be adjusted to make it suitable for the human-machine collaborative cargo conveyor.

The application provides an RT tire, which is provided with a tread, a carcass arranged on the radially inner side of the tread, and a belt layer between the tread and the carcass, the tread comprises a crown and a sidewall, the sidewall comprises an upper sidewall and a lower sidewall from top to bottom, the tread is provided with circumferential grooves extending along the circumferential direction of the tire and transverse grooves extending along the width direction of the tire, the circumferential grooves and the transverse grooves divide the tread into a plurality of block patterns, the width of the crown is TDW, the crown arc radius is R1, and the crown arc length is RL, and the following relationships are met: TDW = NSW * (78% to 84%), R1 = NSW * (350% to 420%), and RL = TDW * (55% to 65%), the width of the belt layer is WBL, and the following relationship is met: WBL = TDW * (95% to 105%), the radius of the upper sidewall is SUHR, the radius of the lower sidewall is SDHR, and the following relationship is met: SUHR = SDHR * (80% to 99%), the total area of the plurality of block patterns is Ag, the total area of the whole tread is At, and the following relationship is met: 40% ≤ Ag / At ≤ 45%. The RT tire can meet the requirements of low noise, high comfort, safety and passability in bad road conditions.

The invention discloses a railway wagon coupler buffer device and an installation method, solves the problems that in the prior art, a coupler buffer device is small in passing radius and has safety risks, and has the beneficial effects that the vehicle passing ability is guaranteed, and the operation risk is reduced. The supporting component is located on the inner side of the vehicle body end plate, the supporting component and the vehicle body end plate are arranged at intervals, a connecting hook and a traction hook are movably arranged at the two ends of the supporting component respectively and penetrate through the vehicle body end plate, and an elastic buffering mechanism is arranged on the other side, opposite to the connecting hook, of the supporting component. One end of the elastic buffering mechanism is movably connected with the supporting component, the elastic buffering mechanism is connected with the vehicle body, the traction hook is connected with a connecting hook at the end of another vehicle body through a connecting component, the connecting hook is connected with a traction hook at the end of another vehicle body through a connecting component, the length of the connecting component is adjustable, and the connecting component can be locked after the length of the connecting component is adjusted.

The utility model discloses a kind of no-tillage seeding machine anti-winding hob devices, including driving shaft, driving shaft is spline shaft, multiple crushing components and hob assembly are sleeved on driving shaft, and crushing component and hob assembly are slidably installed to the main body of driving shaft along the end of driving shaft;Crushing component includes spline sleeve A, multiple knife holders that are circumferentially distributed are fixedly connected to the periphery of spline sleeve A, and crushing blade is installed in the end of the knife holder away from spline sleeve A;Hob assembly includes spline sleeve B, and the length of spline sleeve B is same with spline sleeve A, two cutterheads that are side by side arranged are sleeved on the main body of spline sleeve B, and anti-winding blade that is arranged in pairs is installed on the periphery of cutterhead.The hob device provided by the utility model can solve the problem of easy winding of straw and rhizome, can meet the needs of different agronomy and plot, and improve the versatility and adaptability of equipment.

The utility model discloses a candy machine which comprises a containing mechanism and an output mechanism, the containing mechanism is arranged at the top of the output mechanism, and the containing mechanism is communicated with the output mechanism; a connecting hole is formed in the bottom of the accommodating mechanism; an input hole is formed in the top of the output mechanism, an output hole is formed in the bottom of the output mechanism, and the input hole communicates with the output hole through the internal space of the output mechanism; the connecting hole is matched and connected with the input hole, so that the accommodating mechanism is communicated with the output mechanism; the output mechanism comprises a shell and a connecting structure. The top of the shell is connected with the containing mechanism. The connecting structure is arranged in the shell, and one end of the connecting structure is connected with the connecting hole in a matched mode. According to the candy machine disclosed by the utility model, candies are accommodated and stored through the accommodating mechanism, and the candies are taken out of the accommodating mechanism through the output mechanism, so that the storage function of the candy machine on the candies is realized, and meanwhile, a consumer can conveniently take out the candies from the accommodating mechanism through the output mechanism.

The humidifying structure, the humidifying filter element and the humidifier provided by the embodiments of the present application relate to the technical field of humidifiers, and the humidifying structure comprises: a hydrophilic layer made of a hydrophilic material; a hydrophobic layer arranged on one side of the hydrophilic layer; and a filter layer arranged on the side of the hydrophobic layer away from the hydrophilic layer. In the embodiments of the present application, the filter layer is arranged on the side of the windward surface of the hydrophilic layer. During humidification, the airflow passes through the filter layer and the hydrophobic layer in sequence, and then passes through the hydrophilic layer, and the moisture in the hydrophilic layer is brought into the air to realize humidification. The filter layer can filter dust particles in the airflow, and can reduce the situation that the dust particles in the airflow directly contact the hydrophilic layer, thereby reducing the probability that the dust particles in the airflow pollute the water quality of the humidification. Meanwhile, the filter layer and the humidifying layer are arranged with the hydrophobic layer, the hydrophobic layer can play a role of physical separation, and can reduce the flow of water in the hydrophilic layer to the filter layer, thereby helping to ensure the filtering performance of the filter layer and the passing performance of the airflow.

The present invention belongs to the field of highway construction detection equipment, and proposes a sampling device for highway construction detection, including a drill tube, a transmission mechanism, a first motor and a beam base, wherein the transmission mechanism includes a rotating transmission component and a vertical transmission component, and a deformation frame group is arranged at both ends of the beam base, and a support arm connected to the beam base shaft is arranged above the outer side of the deformation frame group, and a moving seat is arranged at one end of the support arm away from the beam base, and a rear box plate slidingly matched with the rear box plate is arranged on the outer side of the moving seat, and a cantilever, a screw shaft, a pulley group, a second motor and a connecting seat are arranged on the rear box plate, and a third motor is arranged on the connecting seat, and a pay-off wheel and a pulley group are arranged on the transmission side of the third motor, and the pay-off wheel and the pulley group are connected by a wire rope transmission, and the third motor drives the pay-off wheel and the pulley group to transmit and deform the deformation frame group. The present invention has a reasonable design, can be synchronously transferred with a vehicle, is conducive to improving sampling efficiency, reducing work intensity, and is suitable for large-scale promotion.

The utility model relates to the technical field of shot blasting machines, and discloses a shot blasting device for metal steel casting production, the shot blasting device comprises a shot blasting machine body, the front surface of the shot blasting machine body is provided with a material inlet, and the material inlet is internally provided with a placing box. According to the shot blasting device for metal steel casting production, through rotation of the arranged turn-over pipe, a workpiece can be turned over through friction, the workpiece can make full contact with steel shots sprayed by the shot blasting machine body, the polishing efficiency is improved, the passing ability of the steel shots can be guaranteed through the shot falling holes formed in the turn-over pipe at equal intervals, and the production efficiency is improved. And after shot blasting is finished, a placement box is pulled to be located above a water tank, reciprocating overturning of a nozzle can be achieved through the arrangement of incomplete teeth, overturning teeth and a torsional spring, so that a workpiece is evenly cleaned, used water can be filtered through an arranged filter screen, and therefore the water can be recycled, and the service life of the shot blasting machine is prolonged. The recycling effect of clean water is achieved, and water sources are saved.

This invention relates to the field of pipeline temperature control switch technology, and more particularly to a temperature control valve, comprising a valve body, a valve core, a temperature control unit, and a drive device. The valve body has an inlet channel and an outlet channel separated by a partition, and the partition has a connecting port. The valve core includes a push block positioned above the connecting port, with multiple arc teeth on its lower part. The output end of the drive device is connected to the push block. A sleeve is provided on the push block, with one end of a rotating rod connected to the output end of a drive motor, and the other end threadedly connected to the sleeve. The drive device causes the push block to gradually move towards the connecting port, and the lower part of the arc teeth gradually enters the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels between adjacent arc teeth form a multi-channel structure, reducing pressure loss and side leakage, greatly improving the performance of this temperature control valve. The threaded connection allows for more precise control of the channel opening size and flow rate ratio, resulting in more accurate temperature control.

The utility model discloses a closure and water retaining device for water conservancy construction. Relates to the technical field of hydraulic engineering and comprises a first baffle, a water inlet is formed in the first baffle, a filter plate is arranged at the water inlet, a plurality of insertion rods are connected to the bottom of the first baffle, a concave mounting block is connected to the top of the first baffle, and two sliding blocks are connected to the bottom of the concave mounting block; sliding grooves are formed in the opposite sides of the sliding blocks correspondingly, and second baffles are connected into the sliding grooves. The filter plate, the motor, the rotating rod, the gear, the rack, the second baffle plate and the scraper plate are matched for use, so that the water flow can be cut off, garbage and impurities in water can be filtered, and the filter plate for filtering the garbage and the impurities is cleaned when water is introduced every time, so that the cleaning effect is good, and the cleaning effect is good. The filter plate plays a positive role in improving the downstream water quality, ensures the trafficability of the filter plate, and does not need to be cleaned frequently.

The utility model discloses a spraying rod mechanism capable of being folded vertically on a single side, and relates to the technical field of spraying rods, the spraying rod mechanism is characterized in that the inner wall of a storage box is rotatably connected with a rotating rod, the surface of the rotating rod is fixedly connected with a first display board, and the upper surface of the first display board is provided with a second display board; two second rotating rollers are rotationally connected to the side, away from the first display board, of the second display board, a top board is installed at the other ends of the two second rotating rollers, the top board is rotationally connected with the second rotating rollers, and a first rotating roller is rotationally connected to the side, close to the second display board, of the first display board. The spraying rod mechanism capable of being folded vertically on the single side solves the problems that in the prior art, a folding structure for a spraying rod usually adopts an overlapped folding arm structure, so that the load strength of a connecting shaft is high, the service life of the folding structure for the spraying rod is prone to being affected, and meanwhile the passing ability in the liquid medicine spraying process is affected due to the fact that the width of the overlapped folding arm is large.