27 results about "Pressure units" patented technology

This utility model discloses a dart impact testing machine for measuring material properties, comprising: a base with a mounting groove on its surface, a negative pressure chassis slidably inserted into the inner wall of the mounting groove, a mounting unit for limiting the position of the negative pressure chassis on the inner wall of the mounting groove, a negative pressure groove on the top of the negative pressure chassis, a pressure plate above the negative pressure chassis, a negative pressure unit, and a first driving unit, wherein the negative pressure unit applies negative pressure to the inside of the negative pressure groove. In this utility model, by creating a lifting groove on the surface of the base, and with a lifting block slidably inserted into the inner wall of the lifting groove, during use, the user rotates a threaded rod, which drives the lifting block, threaded onto the surface of the threaded rod, to slide along the inner wall of the lifting groove, thereby controlling the height of the impact dart and thus controlling the impact force.

The present application relates to the technical field of high-pressure unit control system, and particularly relates to a high-pressure unit integrated control method and system, wherein the high-pressure unit integrated control method comprises: obtaining start-stop costs and maximum loads of each generator in the high-pressure unit; predicting expected load demand of the high-pressure unit in a future period; based on the expected load demand and the maximum loads of each generator, selecting a target generator combination satisfying the expected load demand from each generator with the minimum overall start-stop cost of the high-pressure unit as an optimization target; and performing integrated control on each generator in the target generator combination. The present application realizes the mode change of the high-pressure unit from the current optimal to the period optimal by fusing future load prediction and start-stop cost optimization, reduces the overall operation cost and improves the energy efficiency level under the premise of guaranteeing power supply reliability.

This utility model provides a carbon fiber paper molding device, relating to the field of carbon fiber paper material processing technology. Specifically, it includes an upper carbon fiber paper mold and a lower carbon fiber paper mold. U-shaped plates are fixedly installed on corresponding sides of the lower carbon fiber paper mold. Hydraulic rods are installed on the top of both U-shaped plates, penetrating and fixedly connected to them. The output ends of both U-shaped plates are fixedly connected to the upper carbon fiber paper mold. This application utilizes multiple pressure units at the bottom of the pressure plate, through the coordinated action of a servo motor, lead screw, pressure sensor, and execution pressure head, to achieve independent and precise pressure control of different areas of the carbon fiber paper. The servo motor drives the lead screw to move the execution pressure head. Combined with real-time feedback from the pressure sensor, the pressure in each area can be flexibly adjusted according to the characteristics of the carbon fiber paper and molding requirements, effectively avoiding molding defects caused by uneven local pressure and significantly improving the molding quality of the carbon fiber paper.

This invention relates to the field of air purification equipment technology, and discloses an air filtration device for textile workshops, including a filter box and a mesh belt circulating within the filter box; an air inlet is provided on one side of the filter box; a negative pressure unit is provided in the internal cavity formed by the mesh belt, the negative pressure unit is used to generate negative pressure inside the filter box, guiding dust-laden air to be drawn in through the air inlet and pass through the front working area of ​​the mesh belt; a water circulation humidification mechanism is provided in the front working area of ​​the mesh belt for spraying and humidifying the dust and lint trapped on the mesh belt. By providing a thermal expansion peeling mechanism and a cleaning roller in the back working area of ​​the mesh belt, the moisture of the lint adhering to the surface of the mesh belt is heated and boiled, causing volume expansion, and then scraped off by the counter-rotating cleaning roller, avoiding the hardening and clogging of moist dust in the mesh belt pores, and improving the self-cleaning efficiency of the mesh belt.

The utility model relates to athletic shoes manufacturing technical field, concretely relates to a kind of equipment for the compression bonding of athletic shoes outsole and upper, especially a kind of safety type athletic shoes outsole compression bonding equipment;Including frame, control system, lower mould, upper mould, safety protection system, intelligent compression bonding system and pressure adaptive module;The safety protection system is made of safety grating and emergency stop solenoid valve of connection driving mechanism by being set in the front of lower mould two sides, can monitor dangerous area in real time and terminate dangerous action in millisecond level, completely eliminate press hand accident;The adaptive compression bonding system includes the heating plate of partition independent temperature control and the pressure adaptive module consisting of multiple independently controllable pressure unit, can accurate fit sole curve, realize the differentiating heating and pressurization of different regions;The utility model solves the two major industry problems of operation safety and compression bonding quality integrally, significantly improves production safety and product excellent rate.

The application relates to a shield tunnel staged grouting system and method in an operation period, which comprises a positioning unit, a passage control unit, a grouting pressure unit and an intelligent control unit. The positioning unit is used for collecting positioning data of a grouting position; the passage control unit is used for adjusting the opening and closing states of valves of a plurality of pipelines based on a passage control scheme sent by the intelligent control unit, so as to adjust the formula of slurry; the grouting pressure unit is used for collecting grouting pressure data in the grouting process; and the intelligent control unit is configured to: extract the distance between the current position to be grouted and the grouting equipment based on the positioning data; determine whether the passage control scheme is changed based on the distance between the position to be grouted and the grouting equipment; and retrieve the passage control scheme corresponding to the grouting stage from a preset mapping table based on the grouting stage and send the passage control scheme to the passage control unit.

The application provides a flexible yielding and supporting device and method for roadway floor heave, and relates to the technical field of coal mine roadway supporting. The device comprises a rigid bearing framework, a compressible bag, a gravel force transmission layer, a grouting hardening layer, a gravel removal unit and a bag refilling pressure unit. The compressible bag is filled with compressible buffer medium, and the deformation energy is absorbed by compression when the floor heaves to achieve flexible yielding and supporting; a pressure sensor cooperates with a solenoid valve to maintain the bag pressure within a set range; a flow sensor monitors the medium discharge amount, and triggers an extreme early warning when the threshold is reached; the gravel removal unit quantitatively removes the compacted gravel in the framework to provide space for the bag reset, and the device is recycled by using the downhole pressure pipeline to refill the pressure. The application has the functions of self-adaptive yielding and supporting, extreme early warning and recycling, solves the problems of poor coordination between the existing supporting structure and soft rock large deformation, unstable treatment effect and one-time use of the device, and significantly improves the floor heave treatment effect and economic benefits.

The application provides a drill strength comprehensive detection device, and mainly relates to the field of quality detection. The drill strength comprehensive detection device comprises a frame body, a containing cavity in the frame body, adjustment tracks arranged on both sides of the containing cavity, a stretching unit and a pressure unit slidingly arranged on the adjustment tracks, a torsion unit arranged at one end of the containing cavity, and an impact unit arranged at the rear side of the torsion unit. The torsion unit comprises a torsion clamp and a torsion motor arranged in rotation, the stretching unit comprises a stretching frame, a plurality of stretching sleeves are arranged on a mounting plate, a stretching clamp is fixedly arranged on the front side of a stretching plate, a stretching cylinder is arranged at the rear side of the stretching frame, the pressure unit comprises an adjustment frame, at least one middle clamp is arranged on the adjustment frame, and a plurality of middle oil cylinders are arranged between the adjustment frame and the middle clamp. The drill strength test under multiple load loads is realized by the application, drill strength data more in line with actual environment is obtained, and reference is provided for the use of the drill.

Heat exchanger cleaning device (1) for high-pressure cleaning of the inside of the tubes (24) of a heat exchanger (W), wherein the heat exchanger cleaning device (1) comprises the following: a) a high-pressure unit (2), wherein the high-pressure unit (2) has at least two high-pressure hoses (58) and the high-pressure hoses (58) can each be connected to a high-pressure source at one end and have a nozzle at their other end, b) a positioning device (90) for positioning the high-pressure hoses (58), wherein the positioning device (90) is a The feed device (100) comprises a motor for moving the at least two high-pressure hoses (58) in the longitudinal direction (LR) of the high-pressure hoses (58), wherein the feed device (100) comprises at least two drive motors (59) and the drive motors (59) each interact with exactly one high-pressure hose (58). and c) a control unit (74) which is designed to control the at least two propulsion motors (59) independently of each other.

This application relates to a cleaning body and a cleaning device. The cleaning body includes a cleaning main body, a partition, a rotating cleaning unit, and the partition unit. The partition is provided on the outside of the cleaning main body to separate a first negative pressure unit area and an assembly area within the cleaning main body. A negative pressure channel space is provided inside the cleaning main body, and the negative pressure channel space communicates with the first negative pressure unit area. The rotating cleaning unit is configured to be rotatably mounted on the cleaning main body, and the rotating cleaning unit is located within the assembly area. The rotating cleaning unit is configured to move relative to the cleaning main body along a first direction. The partition unit is mounted within the assembly area. Along the first direction, the partition unit is located between the cleaning main body and the rotating cleaning unit. Along a second direction, the width of the partition unit is smaller than the width of the first negative pressure unit area. Thus, the cleaning body according to this application not only adapts to terrain changes but also prevents the rotating cleaning unit from tilting upwards to enhance ground adhesion and improve cleaning performance.

The invention relates to an operating device (10) with an externally pressable control element (18), a sensor unit (20) comprising a sensor element and an associated pressure unit (24), wherein the pressure unit (24) has a pressure chamber in a receiving housing (28) which is mechanically coupled to the control element (18) so that when pressure is applied to the control element (18), the pressure is transmitted to the receiving housing (28), the pressure chamber being filled with a medium, and wherein the sensor element is arranged relative to the medium such that it detects the pressure of the medium or a change in a physical property of the medium when pressure is applied. The invention further relates to a vehicle steering wheel with the operating device (10).

The present application relates to the technical field of respiratory protection, in particular to a multi-unit compressed air source sequencing control and automatic switching pressure reducer. The present application provides a multi-unit compressed air source sequencing control and automatic switching pressure reducer, which only needs to open the connected compressed air source valve, without the need for operators to monitor and manually switch, each high-pressure unit module automatically switches the delivery of high-pressure gas according to the sequence, and the reduced pressure common module continuously reduces the pressure to supply air for respiratory protection, which not only improves the convenience and accuracy of operation, but also improves the utilization rate of compressed air source. The present application adopts a module design structure of axial series sequencing, radial parallel control and automatic switching delivery, and continuous pressure reduction for air supply of each high-pressure unit, which is composed of a plurality of high-pressure unit modules composed of a high-pressure unit cylinder + a unit control valve + a unit switch valve, and a high-pressure cylinder cover and a reduced pressure cylinder + a reduced pressure valve composed of a reduced pressure common module.

A printing unit (4) for a printing machine (2) is described, comprising one or more printheads (10) for printing a paper web (12) with ink (14). Downstream of the printheads (10), the unit has an extraction chamber (22) for extracting ink mist (16). The unit includes a housing element (26) that delimits the extraction chamber (22). The housing element (26) has an air guide contour (30) that is aligned with the paper web (12), forming a flow path (P2) that leads along the air guide contour (30), over the paper web (12), and into the extraction chamber (22). A corresponding housing element (26) and a method for operating the printing unit (4) are also described.

This invention discloses a dynamic monitoring system and method for backfilling and contact grouting in high-pressure steel-lined tunnels. The dynamic monitoring system includes a pressure monitoring unit and a display unit. The pressure monitoring unit includes an upper pressure monitoring unit and a lower pressure monitoring unit. The upper pressure monitoring unit is installed on the rock excavation surface in the arch area, and the lower pressure unit is installed on the bottom surface of the steel lining. This invention pre-embeds the upper and lower pressure monitoring units between the surrounding rock and the steel lining. During backfilling and grouting, the upper pressure monitoring unit monitors the density between the concrete and the surrounding rock, and during contact grouting, the lower pressure monitoring unit monitors the density between the steel lining and the concrete. This ensures a tight bond between the steel lining and the concrete, minimizing the impact on tunnel concrete pouring. It maximizes the effectiveness of backfilling and contact grouting without damaging the overall structure of the steel plate, avoiding the need for remedial measures to repair quality defects after grouting and reducing the risk of openings in the high-pressure steel plate.

The utility model discloses a kind of multi-direction bending special machines, including frame, the frame is connected with fixed assembly and extrusion assembly, the fixed assembly includes the first adjusting piece of a plurality of first adjusting piece and a plurality of second adjusting piece that can independently change own relative position, each first adjusting piece can be arranged to form first bending profile, each second adjusting piece can be arranged to form second bending profile, the extrusion assembly includes the first pressure unit of the first adjusting piece and the second pressure unit of the second adjusting piece, the movement direction of first pressure unit and second pressure unit is staggered.The utility model provides a kind of multi-direction bending special machine, can realize the multi-direction bending action of same workpiece in once positioning process, to reduce the action of installation and disassembly, improve production efficiency.

The utility model relates to energy storage equipment detection technical field especially relates to a kind of battery pressure test equipment, including rack, pressure unit and detection unit. Wherein, pressure unit is set in rack, and pressure unit includes stage and pressure piece, stage is used to place the measured piece, and pressure piece can be moved towards measured piece, and with preset pressure pressure measured piece. Detection unit includes displacement sensor, and displacement sensor is set on pressure piece, and displacement sensor is used to detect the depth of measured piece subsidence after pressure piece pressure measured piece. The battery pressure test equipment is set on pressure piece by displacement sensor, the distance of pressure piece movement can be obtained, subtract the distance between pressure piece and measured piece, and the depth of measured piece pressure deformation can be calculated.

This utility model relates to the field of venting technology for packaging bags, and discloses a venting assembly for the production of bagged dry powder mortar. The assembly includes a frame, a conveyor belt on the upper side of the frame, a cover on the upper side of the conveyor belt, a cylinder on the upper side of the cover, a crossbar fixedly connected to the top of the cylinder, a negative pressure unit on the upper side of the crossbar, and drive mechanisms at both ends of the crossbar. Supports are slidably connected to the drive mechanisms, with the two supports located on opposite sides of the conveyor belt. This utility model, through the frame, supports, conveyor belt, crossbar, cylinder, cover, drive mechanism, and negative pressure unit, solves the problems of limited contact area between the roller and the packaging bag in existing technologies, making it difficult to ensure comprehensive and uniform venting, poor adaptability to packaging bags of different thicknesses and materials, and potential localized damage to the packaging bag due to uneven rolling pressure.

This invention discloses a small-scale slipform paver for mines. The main body of the equipment includes a main frame, with a first transport box, a slipform forming chamber, and a driver's cab integrated on top. Wheels are located on both sides, and a leveling and compaction module and a slipform forming module are mounted at the front via hydraulic cylinders. The first transport box contains a negative pressure unit and a mixing device, and is equipped with a motor compartment, a telescopic hydraulic cylinder, and an openable / closable top cover. It has multiple discharge ports and is connected to a movable delivery pipe. The slipform forming chamber is equipped with a spray nozzle, a concrete delivery pump, and a detachable delivery hose. The leveling and compaction module integrates a counter-rotating auger, a vibration module, an infrared level, and a depth sensor, allowing for adaptive adjustment. The slipform forming module is equipped with a shrink plate, shrinkage fillets, and a vibration structure. The driver's cab integrates control, power supply, and safety protection components. The equipment is suitable for narrow and complex mine working conditions, and can integrate concrete delivery, leveling and compaction, and slipform forming operations, achieving high paving accuracy and stable construction, significantly improving the efficiency and quality of mine roadway lining construction.

The embodiment of the application provides a kind of brake system and car, it is related to automobile technical field, wherein the brake system includes: brake master cylinder, build pressure unit, liquid storage tank, first filter assembly, first master cylinder isolation valve, second master cylinder isolation valve, pedal feeling simulation load and wheel brake circuit;The first liquid outlet and the second liquid outlet of the liquid storage tank are connected with the liquid inlet side of the first master cylinder isolation valve and the liquid inlet side of the second master cylinder isolation valve respectively through the first piston cavity and the second piston cavity, the third liquid outlet of the liquid storage tank is connected with the first liquid inlet pipe of the build pressure cavity in build pressure unit, and the first filter assembly is arranged in the liquid pipe of the first liquid outlet.The brake system is arranged with filter assembly in the liquid pipe of the liquid outlet of the liquid storage tank, realizes the filtration of the brake fluid flowing at the liquid outlet of the liquid storage tank, reduces the impurities in the brake fluid, prevents these impurities from affecting the sealing effect of the sealing element in the automobile brake system, thereby improves the stability of the brake system, and reduces the security risk.

The application provides a kind of test device of pallet strength, which includes support, pressure unit, contact and support;The pressure unit is fixedly connected with the support, the output end of the pressure unit is in abutment with the contact, the support is placed on the workbench, for supporting the pallet to be tested from the bottom, the contact can apply pressure to the top surface of the pallet to be tested under the action of the output end of the pressure unit, and then test the strength of the pallet.The test device of pallet strength provided by the embodiments of the application has the characteristics of simple structure, convenient operation, accurate testing, high efficiency and comprehensive test parameters compared with manual testing method, which can check the pallet and prevent the stack from collapsing due to insufficient strength of the pallet.

The utility model discloses a kind of pressing equipment of manual pressing machine magnetic attraction positioning fixture, involve mechanical processing equipment technical field.The pressing equipment of manual pressing machine magnetic attraction positioning fixture, including pressure-bearing unit and pressure unit, the pressure unit is inserted in pressure-bearing unit inside, the pressure unit includes cylinder and pressing plate, power output rod is inserted in cylinder inside, the pressing plate sleeve is connected in power output rod outside, the pressing plate bottom is connected with second positioning pin, the second positioning pin is magnetic attraction positioning fixture and provides magnetic attraction anchor point, the pressing plate bottom is inserted with eccentric clamping block.The pressing equipment of manual pressing machine magnetic attraction positioning fixture, by setting second positioning pin as magnetic attraction anchor point, cooperate magnetic attraction positioning fixture, quick and accurate positioning can be realized, and pressing precision and efficiency are improved;The setting of eccentric clamping block can be firmly clamped to magnetic attraction positioning fixture, prevent fixture loosening in pressing process, guarantee the stability of pressing process.

This invention relates to the field of food packaging technology, and particularly to a powder negative pressure filling system, a powder filling machine, and a working method. The powder negative pressure filling system includes: a tank sealing structure and a filling head, which changes the pressure environment inside the tank to achieve switching between negative pressure filling and stopping filling; a height adjustment unit to change the insertion length of the filling head relative to the tank; a negative pressure unit to provide filling negative pressure inside the tank; and a first weighing unit, the obtained weight of which guides the vertical height control of the height adjustment unit. The maximum powder filling capacity is negatively correlated with the insertion length of the filling head relative to the tank. The powder filling machine includes the powder negative pressure filling system for coarse powder filling and a screw filling system for fine powder filling. This invention replaces the mechanical screw with a negative pressure filling mechanism and introduces a height-adjustable structural unit and weighing feedback to achieve filling without mechanical contact, avoiding mechanical damage to powder particles and maintaining high filling rate and accuracy.

This invention relates to the field of pipe cutting technology, and in particular to a cutting device for processing automotive shock absorber outer tubes. The device includes a feeding unit, a clamping unit mounted on the feeding unit, a negative pressure unit mounted on the clamping unit, and a cutting unit mounted on the feeding unit. The invention uses a connecting sleeve to drive the upper and lower clamping components to abut against each other, initially clamping the outer surface of the pipe to prevent excessive clamping force from causing pipe deformation. The cutting gap, combined with the cutting tool, ensures the overall stability of the pipe during shearing. Simultaneously, when the connecting sleeve drives the clamping assembly to clamp the pipe, the toothed plate 1 drives the toothed plate 2 through gears, causing the piston to move within the movable cavity, generating negative pressure in the inner cavity. This, combined with the contact pad, firmly holds both sides of the cutting gap, further fixing the position of the pipe and preventing the pipe from loosening during cutting, thus improving cutting accuracy.

The utility model belongs to packaging equipment technical field provides a disc type bag strip packing device, including the frame body that is provided with top cover and bottom support and cloth transfer mechanism and push material packing mechanism, cloth transfer mechanism includes rotatable setting cloth carousel on bottom support, detachable setting in cloth carousel upper end face's support seat and with the corresponding layout of the blocking unit of support seat, push material packing mechanism includes fixedly setting in the push unit of top cover lower end face and fixedly setting first pressure unit and second pressure unit in the tail end of push unit, and push unit drives first pressure unit and second pressure unit reciprocating motion. The disc type bag strip packing device provided by the utility model is compact in structure and small in floor area, is applicable to different production sites and space environment, and can adjust the direction of feeding and discharging according to the need, and is practical and widely applicable.

This invention relates to the field of nail surgical instruments, specifically providing an adjustable-depth drilling sampler and its method of use. The sampler includes a head and a drive unit for rotating the drill bit. The outer surface of the drill bit is provided with graduation lines, and the drill bit has a hollow structure. It also includes a negative pressure unit, on which the drill bit is mounted. The negative pressure unit communicates with the hollow area of ​​the drill bit, and can generate negative pressure to extract drilling debris from the hollow area of ​​the drill bit. This invention proposes a drilling tool specifically for surgical nail drilling, which not only allows for neat drilling of the nail but also enables free adjustment of the drilling size and depth by changing the drill bit and the graduation lines on it. It also has a debris absorption and sampling function. It can also be made visually accessible for application in minimally invasive surgeries such as bone tumor sampling and bone cyst surgery.

This utility model discloses a bacterial filtration structure for a medical vacuum negative pressure unit, relating to the field of medical vacuum negative pressure equipment technology. The utility model includes a base, with several lifting sleeves fixedly connected to the top outer wall of the base. Each of the lifting sleeves has a lifting groove on its inner wall. By incorporating convex shafts, the utility model allows for clockwise rotation of a handle, which in turn drives a worm gear, which in turn drives a worm wheel, which in turn drives a transmission rod. The transmission rod then drives one end of each of the convex shafts to rotate, which in turn drives one end of a connecting rod to move. This connecting rod then drives an extension rod to move upwards, which in turn raises a fixed base. The fixed base then drives several racks to rise, thus achieving a height that can be freely adjusted to accommodate varying heights in different environments and ventilation systems with different elevations, thereby improving the equipment's versatility.