15results about How to "Guaranteed passability" patented technology

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.

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.

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 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 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.

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.

A highly adaptable wheelset belongs to the field of material handling equipment technology. This invention includes a wheelset frame, wheel plates, and load-bearing wheels. Two load-bearing wheels are rotatably connected between two wheel plates. The two wheel plates are rotatably connected to opposite sides within the wheelset frame. The wheelset frame is provided with a limiting structure to restrict the maximum upward swing angle of at least one wheel plate. This invention effectively avoids jamming when driving on uneven ground, resulting in higher maneuverability.

The invention relates to the technical field of bee product filtering, in particular to a composite filtering device and process for bee product production and processing. Comprising a supporting frame, the supporting frame is fixedly connected with a treatment shell, a filtering shell is fixedly connected into the treatment shell, a plurality of circles of filtering holes distributed in an array mode are formed in the filtering shell, a cover plate is installed on the filtering shell, an intercepting net is arranged in the filtering shell, a fixing frame is fixedly connected into the filtering shell, and the fixing frame is rotationally connected with a shearing roller. The shearing roller is located in the intercepting net, and the circulation area of the filtering holes in the filtering shell is smaller than that of meshes in the intercepting net. Honey between the intercepting net and the filtering shell is in a flowing state through relative rotation of the intercepting net and the filtering shell, so that the probability that honey impurities block the filtering shell is reduced, the contacted impurities are cut and smashed through rotation of the shearing roller, the impurities are dispersed, residual honey in the impurities is released, and meanwhile blockage of the impurities to the intercepting net is reduced.

This invention relates to the field of battery technology, and discloses a cell cover assembly, a cell, and a battery pack. The cell cover assembly includes a cover body, an explosion-proof valve, and an explosion-proof valve protective patch. The cover body has an explosion-proof valve mounting hole and an injection hole; the explosion-proof valve is located in the explosion-proof valve mounting hole; the explosion-proof valve protective patch is located on the first surface of the cover body away from the cell electrode assembly, completely covering the explosion-proof valve mounting hole, and has a detection gas channel, which is an elongated structure arranged along the width direction of the cover body; the total dimension of the detection gas channel along the width direction of the cover body is L1, and the dimension of the explosion-proof valve protective patch at the detection gas channel along the width direction of the cover body is L, satisfying: 0.12≤L1 / L≤0.25. This invention can ensure the accuracy of helium detection, ensuring that damage to the explosion-proof valve can be detected, and can also block the overflow of electrolyte, effectively preventing the explosion-proof valve from being contaminated or corroded by the electrolyte.

This invention relates to the field of suspension system technology for engineering vehicles, and discloses a hydropneumatic suspension system and a tracked engineering vehicle, including a front suspension cylinder, a middle suspension cylinder, a rear suspension cylinder, a front swing arm, a middle swing arm, a rear swing arm, a buffer cylinder, a tensioning cylinder, a brake arm, and an eccentric shaft; one end of each of the front, middle, and rear suspension cylinders is hinged to the vehicle frame, and the other end is hinged to the front, middle, and rear swing arms, respectively; a tensioning cylinder cylinder seat is fixedly connected to the rear of the cylinder barrel of the tensioning cylinder, and the cylinder barrel of the buffer cylinder is placed inside the tensioning cylinder cylinder seat, allowing it to swing within the tensioning cylinder cylinder seat; the piston rod end of the buffer cylinder is hinged to the brake arm; the piston rod end of the tensioning cylinder is hinged to the vehicle frame. The beneficial effects of this invention are: it can significantly attenuate the vibration generated during high-speed operation, improve the overall comfort of the vehicle, and ensure that the tracks are tensioned in real time during high-speed operation, preventing slippage and derailment, thus guaranteeing the vehicle's mobility and passability.

The utility model provides a cooling oil injection ring, a motor and a vehicle, and relates to the technical field of vehicle parts. The cooling oil injection ring comprises a first ring section and a second ring section, the first ring section and the second ring section are connected end to end to form an annular structure, the inner diameter of the first ring section is larger than that of the second ring section, the second ring section is provided with an oil duct, and an oil injection hole communicated with the oil duct is formed in the inner side wall of the second ring section. According to the cooling oil injection ring, aiming at the characteristic that the radial size of the winding end part is non-uniformly distributed in the circumferential direction, the structure of the whole oil injection ring is optimized by adopting a sectional type variable inner diameter structural design, accurate adaptation to the winding end part is realized, the trafficability of the winding end part is ensured, and the service life of the oil injection ring is prolonged. And the problem that the oil injection ring cannot be arranged due to insufficient radial thickness of the oil injection ring is also avoided.

The application discloses a tube blocking device for a tracheotomy cannula and belongs to the technical field of medical devices, which comprises a tube blocking body in communication with the tracheotomy cannula, an inlet-outlet air passage is formed in the center of the tube blocking body, the inlet-outlet air passage is in communication with the tracheotomy cannula, an adjusting mechanism for acting on the inlet-outlet air passage is arranged on one side of the inlet-outlet air passage in the tube blocking body, the adjusting mechanism can adjust the inner diameter of the inlet-outlet air passage, and a release mechanism for instantaneously opening the adjusting mechanism is arranged on the side of the adjusting mechanism relative to the inlet-outlet air passage; the tube blocking body is in communication with the tracheotomy cannula, the inlet-outlet air passage in the tube blocking body is in communication with the trachea, the inner diameter of the inlet-outlet air passage is adjusted through the adjusting mechanism, the release mechanism is used to instantaneously release the adjusting mechanism while the adjusting is performed, the passability of the inlet-outlet air passage is ensured, and then the tracheotomy cannula is blocked by the tube blocking body, thereby assisting the patient in slowly recovering the physiological respiratory state.