12results about How to "Close flexible" patented technology

This utility model relates to the field of water treatment technology, and in particular to an intelligent control dosing device, including a mixing tank. The inner wall of the mixing tank is equipped with dosing components, and a mounting plate is installed on one side wall of the mixing tank. This utility model controls the lifting stroke of a metering cylinder via an electric actuator. When the metering cylinder descends below the water level, it draws the chemical solution by gravity. After rising to a specific position, the chemical solution is again discharged under gravity through a corresponding cylindrical groove, a circular hole, and an outlet pipe, achieving quantitative dosing. Three sets of dosing components are arranged side-by-side on the crossbeam. According to actual needs, all three sets can be selected for simultaneous dosing, significantly improving work efficiency and meeting the needs of large-scale production scenarios. Alternatively, designated valves can be flexibly closed, allowing for individual dosing through designated outlet pipes, enhancing the device's versatility and practicality. The inlet pipe and dosing pipe independently transport water and chemicals. Combined with a bottom motor-driven stirring shaft, this ensures thorough mixing of the chemical solution within the mixing tank, effectively avoiding localized uneven concentrations.

The invention discloses a control valve and a packer, and belongs to the technical field of oilfield development, the control valve comprises a pipeline assembly and a control assembly, a moving channel is formed in the pipeline assembly, and a closing position and an opening position are arranged in the axial direction of the moving channel; the control assembly comprises a sliding sleeve and an elastic piece, the sliding sleeve is in sliding connection with the moving channel, the elastic piece is arranged between the sliding sleeve and the opening position, and when external pressure is larger than internal pressure of the moving channel, the sliding sleeve moves to the opening position in the axial direction of the moving channel under the action of pressure and compresses the elastic piece, so that the control valve is opened; when the external pressure is smaller than the internal pressure of the moving channel, the elastic piece recovers deformation and drives the sliding sleeve to move to the closing position in the axial direction of the moving channel, and therefore the control valve is closed. The packer is provided with the control valve. Through the synergistic effect of the sliding sleeve and the elastic piece, the control valve can be opened and closed repeatedly, the operation efficiency is improved, and the use cost is reduced.

The utility model discloses an adjustable agricultural product freezer, including the body of a library, the body of a library sets up the upside of base, the inside of body of a library is equipped with the baffle, the baffle will body of a library divide into three cabins, and is equipped with corresponding sensor in each cabin, the cabin of middle is connected with refrigeration equipment, and is equipped with the sealed door in the front side of each cabin, and is equipped with handle in the front side of sealed door, the utility model can close the air -conditioning supply of idle sub cabin, avoid the waste of cold quantity, reduce operation energy consumption greatly, fan forced circulation air -conditioning, shorten the time of reaching the set temperature of two sides sub cabin, improve the efficiency, the compound damping mechanism effectively insulates the external vibration (such as removal, uneven ground, nearby equipment operation), protect the body of a library structure, reduce the damage of inside article because of vibration (especially to the tender agricultural product), prolong the life of equipment.

This utility model provides a hand-held landing net with a closable opening, relating to the field of landing net technology. The hand-held landing net includes: a handle assembly, a frame assembly joined to the handle assembly, a control assembly joined to the frame assembly, a first net body, and a second net body. The frame assembly is constructed as a frame structure. The first net body is joined to the frame assembly to form a net bag with the frame assembly as an opening. The control assembly includes a slidable slider joined to the frame assembly, and a first control member and a second control member for driving the slider to slide. The second net body is joined between the slider and the frame assembly, and one end is movable with the slider. The second control member is configured to drive the slider to move away from the second net body to close the opening through the second net body. The first control member is configured to drive the slider to move towards the second net body to open the opening. This solves the limitations of existing landing nets in catching prey.

The invention relates to the technical field of fire fighting equipment, in particular to a safety strengthening type partition valve box for an offshore booster station. Comprising a box; a pipeline and an electric control box are arranged in the box body; a manual ball valve, a maintenance ball valve, a pressure gauge and an electric ball valve are sequentially arranged on the pipeline; the manual ball valve, the maintenance ball valve, the pressure gauge and the electric ball valve are all communicated with the pipeline; the electric ball valve, the manual ball valve and the maintenance ball valve are all connected with the electric control box; a mechanical emergency operation device communicated with the pipeline is arranged on the pipeline; the pressure gauge is connected with the electric control box through a pressure switch; a water drain valve is arranged on the pipeline; one end of the water drain valve is communicated with the pipeline, and the other end extends out of the box body; the manual ball valve, the maintenance ball valve and the electric ball valve are all connected with the test device; the fault rate of the system can be reduced, the overall safety and reliability of the system are improved, and stable operation of the offshore booster station pipeline system and safety of personnel and equipment are ensured.

The utility model belongs to the technical field of support plate adsorption equipment, and particularly relates to a support plate vacuum adsorption platform which comprises a vacuum sealing plate, a sealing rubber ring and a vacuum adsorption table. The vacuum sealing plate comprises a sealing plate body, a first air suction area, a division bar and a second air suction area. The vacuum adsorption table comprises an adsorption table body, a first main air suction hole and a second main air suction hole. The first main air suction hole and the first air suction area form a first independent adsorption channel. And the second main air suction hole and the second air suction area form a second independent adsorption channel. According to the carrier plate vacuum adsorption platform provided by the invention, the adsorption force can uniformly act on the carrier plate through the first air suction holes, the second air suction holes and the upper air suction holes in the division bars; the first independent adsorption channel and the second independent adsorption channel can realize independent adsorption control on different areas; according to the size and the shape of the carrier plate, part of the adsorption channels can be flexibly selected to be opened or closed, and the applicability and the flexibility of the adsorption platform are improved.

This invention relates to the field of conveyor technology and discloses a belt conveyor belt storage bin alignment device, including a mobile trolley. A first mobile support roller is mounted on the mobile trolley, and a first rotating shaft is fixedly connected to the inner surface of the first mobile support roller. A cleaning component is fixedly connected to one end of the first rotating shaft. The cleaning component is used for wind-powered cleaning of photoelectric sensors. The cleaning component includes a first gear, and a second gear is meshed with the side surface of the first gear. This invention allows for convenient cleaning of dust from the probe surface of the photoelectric sensor without manual operation. It also allows for easy opening and closing of the fan. Furthermore, while the adjusting component controls the fan to stop rotating, it simultaneously drives a protective baffle to move to one side of the fan for shielding, thereby preventing small particles scattered on the conveyor belt from directly impacting or entering the fan when the fan is not in use, thus protecting the fan.

This utility model relates to the field of check valve technology, specifically disclosing a double-plate fireproof check valve with good sealing effect. It includes a valve body, a flue clamp on the side of the valve body, an air inlet channel on the outward side of the valve body, an air inlet at the outward end of the air inlet channel, a partition plate in the middle of the air inlet dividing the air inlet into two parts, and two valve plates rotatably mounted on the inward side of the partition plate to seal the two parts of the air inlet respectively. A spring-loaded device is also provided on the inward side of the partition plate, with its two ends contacting the inward sides of the two valve plates respectively. A crossbeam is also provided at the air inlet, located on the outward side of the partition plate, with magnets on the inward side of the crossbeam corresponding to the two valve plates for adsorbing the valve plates. This utility model's double-plate structure, combined with the rubber sleeves on the valve plate edges, effectively seals the air inlet, reducing gas leakage. Simultaneously, the magnets on the crossbeam adsorb the valve plates, further enhancing the sealing performance.

The utility model discloses a double sealing surface gate valve relates to valve body technical field, the utility model discloses a pipe body and front mounting panel, one end of pipe body is with the lateral surface fixed connection of front mounting panel, the one end fixed connection of pipe body is away from the rear mounting panel of front mounting panel, and the circumference of pipe body is provided with adjusting device. The utility model discloses the mutual cooperation between the cylinder, cylinder cover and connecting column etc. components in adjusting device, has realized the flexible opening and closing of gate valve, and through the setting of buffer spring and buffer pad, effectively reduced the impact intensity of sealing gate in the opening and closing process, prolonged the service life of gate valve. In addition, the side section of sealing gate is set to semicircle, not only improves the sealing performance of gate valve, but also ensures that the fluid does not leak when the gate valve is closed, further enhances the applicability of the gate valve. Solve the problem of high -efficient sealing and buffer protection of double sealing surface gate valve in the related art.

The application discloses a railway station opening and closing method, and the station closing method comprises the following steps: sending inquiry information to two adjacent stations respectively by a station to be closed, and confirming whether the station to be closed is allowed to be closed; after obtaining the permission reply, the station to be closed drives all main line switches to the position of opening the main line, and sends a station closing command; after checking that the station closing condition is met, an interlocking system executes the closing command of the station; and the station to be closed sends station closing information to the two adjacent stations, so that the two adjacent stations cut off the blocking relationship with the station to be closed respectively, and a cross-station blocking relationship is established between the two adjacent stations. After the station is closed, the blocking is established between the left and right two adjacent stations, and only one blocking procedure is needed, so that the train can run between two stations, the two procedures of the original inter-station blocking are reduced to one, meanwhile, the interval between stations is lengthened, the running speed is improved, and the operation efficiency is improved.

The present application belongs to the technical field of textile equipment, and particularly relates to a cloth dustproof compression box, which comprises a box body provided with a front sidewall, a rear sidewall, a left sidewall, a right sidewall and a bottom wall, the rear sidewall of the box body is provided with a partition plate, the front sidewall of the box body is provided with a front-opening door, and the top of the box body is provided with an upper cover; the box body is internally provided with a lifting mechanism, a connecting rod mechanism and a cover opening mechanism; the lifting mechanism comprises a motor, the output shaft at the top of the motor is connected with a screw rod, and a push-pull rod is sleeved on the screw rod; the connecting rod mechanism comprises a sliding plate, the sliding plate is hingedly connected with a first connecting rod, the other end of the first connecting rod is hingedly connected with a second connecting rod, the other end of the second connecting rod is hingedly connected with a pressing rod, the middle of the pressing rod is hingedly connected with one end of a fixed rod, and the fixed rod is fixedly connected with the sliding plate; the cover opening mechanism comprises a supporting plate, the supporting plate is connected with a push plate, the top surface of the sliding plate is provided with a jacking rod, and the top of the jacking rod is provided with a pulley. The present application is provided with the connecting rod mechanism, the lifting mechanism and the cover opening mechanism, so that the compression operation is convenient, the cloth compression effect is good, and the practicability is high.

The utility model provides an electric shock prevention structure of a power supply module, relates to the power supply module protection equipment field, and comprises a protection shell, the protection shell comprises a top cover, a bottom plate and a flip cover, one end of the top cover is provided with a groove, the bottom plate is arranged at the bottom of the top cover, the top of the bottom plate is fixedly connected with a power supply module body and a wiring terminal, and the flip cover is fixedly connected with the power supply module body. The wiring terminal is located at one end of the top of the bottom plate, and the input end of the wiring terminal is connected with the output end of the power supply module body; according to the utility model, the top cover, the bottom plate and the flip cover form the protective shell, the flip cover and the groove can provide protection for the wiring terminal, and the top cover and the bottom plate can provide protection for the power supply module body, so that people can be prevented from directly contacting the electrified wiring terminal and the power supply module body, the electric shock risk is effectively reduced, and the safety of a user is guaranteed; and the flip cover is movably connected with the inner wall of the groove through the damping rotating shaft and can be flexibly opened and closed during use, so that wiring operation is facilitated, and timely protection can be realized when the device is not used.