84results about How to "Play a protective role" patented technology

The utility model relates to the technical field of transcoding equipment, and discloses transcoding equipment for conferences, which comprises a main body assembly. The main body assembly comprises: a box body, wherein a groove body is formed in the box body; the mounting plate is arranged in the groove body; the transcoder is arranged on the mounting plate; an adjusting assembly is arranged on the box body; the adjusting assembly comprises a first fastening bolt and a second fastening bolt, wherein the first fastening bolt is in threaded connection with the box body; when the transcoding device is used, after the mounting plate and the box body are pulled out, the fastening bolt I is rotated, the height of the transcoding device is fixed, on the contrary, after the transcoding device slides into the box body, the sliding block and the blocking cloth are pushed to be unfolded, the transcoding device is covered and protected, and when the transcoding device moves or collides, the transcoding device is well protected, and the transcoding device is prevented from being damaged. The conference transcoding device has the advantages that the position of the transcoding device can be conveniently and rapidly adjusted, the transcoding device is protected, meanwhile, a large use area is not occupied, and the problem that existing conference transcoding equipment does not have a good storage and protection function is solved.

The invention discloses a preparation method of a dendrobium loddigesii polysaccharide extract, which comprises the following steps: crushing cleaned dendrobium loddigesii into dendrobium loddigesii powder, extracting with ethanol, filtering, and drying to obtain dendrobium loddigesii powder to be extracted; mixing p-toluenesulfonic acid, n-butyl alcohol and water to obtain an extraction solution; adding to-be-extracted dendrobium loddigesii powder into the extracting solution, heating and extracting, separating, dialyzing to obtain a crude extracting solution, carrying out alcohol precipitation, dialyzing the precipitate, and freeze-drying to obtain the dendrobium loddigesii polysaccharide extract. The mixed solution is used for extracting the dendrobium loddigesii polysaccharide, extraction and separation of the dendrobium loddigesii polysaccharide extract can be achieved, deproteinization treatment is not needed, the purity of the obtained dendrobium loddigesii polysaccharide extract can reach 90% or above, the process is simple and convenient, reproducibility is good, cost is low, and large-scale production is easy. The invention further discloses application of the dendrobium loddigesii polysaccharide extract prepared by the preparation method and the pharmaceutical composition of the dendrobium loddigesii polysaccharide extract in preparation of drugs or health care products for preventing or treating liver injury.

The utility model discloses a liquid drive gate drive arrangement for regulating and storing pool, including hydraulic oil cylinder support, hydraulic oil cylinder and crossbeam support, the lower extreme of hydraulic oil cylinder support is connected with the pool wall of regulating and storing pool fixed, the fixed end of hydraulic oil cylinder is connected with the upper end of hydraulic oil cylinder support, and the movable end of hydraulic oil cylinder is connected with the upper end of crossbeam support, the lower extreme of crossbeam support is connected with liquid drive gate through a plurality of adjusting bolt. The utility model reduces equipment failure rate, fundamentally solves the problem that the gate cannot normally open and close after the push rod of two side hydraulic cylinders is out of step, and guarantees normal production operation.

The utility model discloses an acrylic cabinet door which comprises a door plate body, U-shaped clamping grooves are formed in the four edges of the door plate body respectively, two first U-shaped protection rods and two second U-shaped protection rods which are symmetrically arranged are clamped in the four U-shaped clamping grooves respectively in a sliding mode, two long clamping grooves are formed in the inner walls of the two ends of each first U-shaped protection rod respectively, and the two long clamping grooves are clamped in the second U-shaped protection rods respectively. The two ends of each second U-shaped protection rod are fixedly connected with two long clamping blocks, and the long clamping blocks on the two second U-shaped protection rods are clamped in the long clamping grooves in the two first U-shaped protection rods in a sliding mode respectively. According to the door plank, the four edges of the door plank body are protected through the first U-shaped protection rods and the second U-shaped protection rods, and the first U-shaped protection rods and the second U-shaped protection rods on the door plank body can be conveniently disassembled and assembled through sliding fit of the long clamping blocks and the long clamping grooves.

This utility model discloses a leak-proof check valve, belonging to the field of check valve technology. It includes a valve body and a valve cover. The valve body has an installation tube at its top, and an installation groove at its top. The valve cover is embedded in the installation groove, and a spring abuts against its bottom. A valve core is fixedly connected to the bottom of the spring. Multiple annularly distributed connecting grooves are formed on the inner wall of the installation groove. Connecting blocks that mate with the connecting grooves are slidably installed around the valve cover. A cavity is formed inside the valve cover, and a screw is rotatably installed within the cavity. A nut is fixedly connected to the upper end of the screw, and a slider is threaded onto the screw. A connecting rod is hinged between the slider and the connecting blocks. By using the connecting grooves, connecting blocks, screw, nut, slider, connecting rod, and limiting rod, the use of bolts is reduced, making the disassembly and assembly of the valve cover more convenient and improving the maintenance efficiency of the check valve.

The invention discloses a self-cleaning lighting street lamp based on a smart city, and relates to the technical field of lighting street lamps, and the self-cleaning lighting street lamp comprises a composite mechanism. According to the self-cleaning lighting street lamp based on the smart city, through the design of a composite mechanism, the lighting height can be adjusted according to the surface of the external environment such as foggy or windy weather, the lighting effect and equipment safety are benefited by properly reducing the height, equipment damage is avoided, and the service life of equipment is prolonged; the external connecting rod and the connector can be folded and inclined downwards, the influence of the external environment on equipment is avoided, the lamp achieves the urban lighting effect, the friction mechanism can be adjusted through the rotating block, the rotating block enables the friction mechanism to rotate in the direction opposite to the lamp, and the influence on the lamplight lighting effect is avoided; the distance between the friction mechanism and the lamp is adjusted through the first electric push rod, the surface of the lamp is rubbed through the friction mechanism, the surface of a component is kept clean, and the good lighting effect is maintained.

This utility model discloses a structure for preventing slip wheel jamming on a dump truck roof, including a tarpaulin, a canopy rod assembly for supporting the tarpaulin, a canopy rod drive assembly for driving the canopy rod assembly to move the tarpaulin to open or close the opening on the top of the dump truck body, and two canopy rod guide assemblies respectively disposed on the left and right side panels of the dump truck body for sliding engagement with the canopy rod assembly. Each canopy rod guide assembly includes a hollow guide rail frame fixedly connected to the side panel of the same side, a protective cover disposed on the side of the hollow guide rail frame away from the side panel of the same side, and an I-beam linear slide rail disposed inside the hollow guide rail frame for sliding engagement with the canopy rod assembly. The advantages of this utility model are: it prevents goods from falling into the I-beam linear slide rail, affecting the forward and backward movement of the canopy rod slide seat; it allows the canopy rod slide seat to slide freely on the I-beam linear slide rail, allowing the canopy rod assembly to retract freely.

The invention relates to the technical field of eye protection appliances, and discloses a hydrogel eye patch and an eyeshade, the hydrogel eye patch comprises an eyeshade patch which covers the eyes of a patient and is of a multi-layer structure; a bonding layer is arranged between a release paper layer and a net-shaped gauze layer in the eyeshade patch, and the eyeshade patch further comprises an outer covering film layer, a breathable layer and a hydrogel eye mask layer embedded in the breathable layer. The release paper layer covers the sticking layer and the hydrogel eye mask layer and is used for protecting the sticking layer and the hydrogel eye mask layer; the pasting layer is used for pasting the eyeshade paste; the hydrogel eye mask layer can adsorb protective liquid, is of a concave surface structure, covers the eyes of a patient and is used for isolating the eyes of the patient from the external environment; the net-shaped gauze layer is used for providing support for the hydrogel eye mask layer and improving the toughness and strength of the hydrogel eye mask layer, and the outer covering film layer is used for isolating the net-shaped gauze layer; according to the eye mask, the concave area formed by the hydrogel eye mask layer adsorbed with the protection liquid can cover the eyeballs of a patient, so that the eyeballs of the patient are located in a wet environment, and the eyeballs of the patient are protected.

The application provides a battery, a battery pack and a power utilization device, the battery comprising a negative electrode sheet, the negative electrode sheet comprising a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector; the negative electrode active material layer comprising a negative electrode active material; the negative electrode active material comprising a negative electrode active substance and a coating layer existing on the surface of the negative electrode active substance, the coating layer comprising amorphous carbon; and a SEI film existing on the surface of at least part of the negative electrode active material of the negative electrode active material layer, the SEI film containing fluorine elements and oxygen elements, and the atomic ratio of the oxygen elements to the fluorine elements in the SEI film being (1.5-7.5):1. The application can improve the fast charging performance, high-temperature storage and high-temperature cycle performance of the battery.

The utility model provides a kind of hanging basket for bridge construction, including hanging basket subassembly and the hanging basket body of connecting hanging basket subassembly, four side directions protective net are connected on hanging basket body, each protective net is equipped with rectangular frame, three rectangular frames are fixedly arranged on hanging basket body, another rectangular frame is movably installed in hanging basket body by metal hinge, and the top end of each rectangular frame is equipped with heightening protection subassembly.The utility model has the beneficial effects as follows: by inserting heightening groove with protection plate two, personnel can manually pull protection plate two, so that the height of protection plate two and protection plate one is added, the protection height is further improved, the construction safety is further optimized, and the threaded hole one and threaded hole two are provided, and the screw is additionally configured to be fixed, i.e. protection plate two and protection plate one can be connected and fixed, so that the hanging basket designed by the utility model is simple, the protection height of four square sides can be adjusted, and the construction safety of hanging basket is ensured.

This utility model relates to the field of cotton yarn cradle technology, specifically to a cotton yarn cradle pressure adjustment module, including a module support base and an outer cotton yarn ring. A shaft is rotatably connected inside the module support base, and a first motor is fixedly connected inside the shaft. A rotating shaft is fixedly connected to the output end of the first motor. Multiple limiting grooves are formed on the outer surface of the rotating shaft, and a limiting rod is fixedly connected inside each limiting groove. A slider is slidably connected to the outer surface of the limiting rod. This utility model, by incorporating a first motor, causes the rotating shaft to rotate inside the shaft, thereby driving the slider to slide within the limiting groove. The sliding trajectory determines the distance between the inner cotton yarn rings. Adjusting the distance between the inner cotton yarn rings determines the tension of the cotton yarn, ensuring stable tension during the spinning process. The cradle, through the application of adjusting force, ensures consistent cotton yarn tension, thus achieving pressure adjustment and guaranteeing processing efficiency.

This invention relates to a solid waste crushing mechanism, comprising a crushing chamber, with crushing rollers symmetrically fixedly connected to the left and right inner walls of the crushing chamber, and a second motor connected to the outside of the crushing rollers. A supporting side seat is fixedly connected to the right inner wall of the crushing chamber, and a pressing roller is installed at the outer end of the supporting side seat. A first motor is connected to the pressing roller, and the pressing roller and the crushing roller cooperate with each other. In this solution, the jamming monitoring module in the image recognition device on the guide inclined seat can monitor the material feeding between the two crushing rollers in real time through the image recognition camera. The first motor drives the pressing roller to rotate downward, so that the solid waste body to be processed on the two crushing rollers receives pressure from the pressing roller, which can help accelerate the solid waste body to be processed through the two crushing rollers, resulting in fast material feeding speed, high crushing efficiency, and reduced energy consumption.

The utility model relates to the technical field of drivers, in particular to a high-efficiency strip-shaped driver, which comprises a shell, a main board is arranged in the shell, a driving chip is arranged on the main board, the main board is sleeved by a reinforcing frame, first buffer springs are arranged between two sides of the reinforcing frame and the shell, and the first buffer springs are connected with the driving chip. Four sets of limiting grooves are formed in the bottom end of the shell, and first elastic blocks and second elastic blocks are installed on the limiting grooves correspondingly. According to the device, the whole mainboard is sleeved with a driver through a reinforcing frame piece, so that the whole mainboard is protected, the driver is matched with a first buffer spring and a buffer plate at the two ends to conduct buffer protection on the mainboard, and the two ends of a limiting groove in the bottom end of a shell are buckled to limiting grooves in a first elastic block and a second elastic block through connecting wires correspondingly; limiting of the connecting line is achieved, and potential safety hazards are prevented while the connecting line is prevented from being too long to affect attractiveness.

The utility model belongs to technical field, concretely relates to a combined crash barrier, including first barrier board and second barrier board, the size of first barrier board and second barrier board is same, and the lower extreme of first barrier board and second barrier board is fixedly connected with a plurality of support legs respectively, the lower extreme of support leg is fixedly connected with support block, support block is provided with a plurality of threaded holes, first barrier board and second barrier board are provided with combination mechanism, first barrier board and second barrier board are provided with buffer crashproof mechanism. The utility model discloses through the lower pressure of the first barrier board and the second barrier board of the pressure block, the lower end of the first barrier board and the second barrier board is tightly attached to the top block, the front slide bar is connected with the front lug plate sliding, the rear slide bar is connected with the rear lug plate sliding, then the lower end of the front slide bar and the rear slide bar is limited by the nut, thereby the lower end of the front slide bar and the rear slide bar is fixedly limited, avoids the front slide bar and the rear slide bar to separate, thereby the effect of the loading and unloading of the first barrier board and the second barrier board is convenient to reach.

The invention provides a new application of exogenous pancreatic acinus cell ALDH2 in preparation of drugs or health care products for preventing or treating acute pancreatitis. Experiments prove that on a mouse acute pancreatitis model, after pancreatic acinus cell ALDH2 expression is specifically knocked out, the pancreatic tissue damage degree is increased, and the pancreatic tissue inflammation infiltration degree is increased; the levels of AMY and LPS reflecting the severity of acute pancreatitis and the overall inflammation level in mouse serum are increased; the level of NLRP3 inflammasome closely related to occurrence and development of acute pancreatitis in pancreatic tissue is remarkably increased, and the results show that the pancreatic acellular cell ALDH2 protein has a protective effect on the severity and prognosis of acute pancreatitis.

The application provides application of tanshinone or a derivative thereof in preparation of a monkeypox virus resisting drug. In a cell model infected by the monkeypox virus, production of infectious virus particles can be significantly reduced. In a mouse infection model, Tanshinone VII can effectively reduce pathological damage of lung tissues and improve survival rate of animals. The above evidence indicates that Tanshinone VII has potential efficacy in resisting the monkeypox virus. It is inferred that tanshinone or the derivative thereof can play a double role in resisting the monkeypox virus and host protection.

The utility model discloses a kind of automobile body side structure, it is related to automobile parts technical field, including side wall, the inner wall of side wall is fixedly connected with reinforcing rib, the inner wall of side wall is installed with sound insulation cotton, the side wall of side wall is fixedly connected with guide rail.The utility model is provided with side wall, reinforcing rib and sound insulation cotton, by the reinforcing rib of honeycomb shape being set, honeycomb reinforcing rib is supported by grid element mutually, the tensile force, shear force or bending force received is dispersed to multiple grid nodes, and the mechanical transmission path of " multiple point stress - overall bearing " is formed, to improve shear strength, strengthen the protection function of device, in the flexible matrix of using sound insulation cotton, the vibration transmission of side wall can be weakened by damping effect, metal component vibration can be blocked by solid conduction, avoid noise transmission into cabin to provide tranquil cabin environment for driver and passenger.

The utility model discloses an electric pile air inlet end plate for a fuel cell, and relates to the technical field of fuel cells, the electric pile air inlet end plate comprises a first plate, a second plate and a third plate, the first plate is provided with a hollow area, and a sealing groove enclosing the hollow area is arranged outside the hollow area; a mounting hole and a connecting hole are further formed in the first plate; a boss capable of being embedded into the hollow area is arranged on the second plate, and a channel opening for gas-liquid circulation is formed in the boss; the end face, provided with the boss, of the second plate is provided with a locking hole communicated with the mounting hole. The third plate is wrapped on the outer side of the second plate, and a fixing hole communicated with the connecting hole is formed in the third plate. According to the air inlet end plate of the electric pile, the structures of holes of the first plate, the second plate and the third plate are directly connected with the bolts, the air inlet end plate of the electric pile is simple to assemble, the overall structure is high in adaptability, and the structural strength and the bending strength of the air inlet end plate of the electric pile can be effectively improved.

The utility model relates to a cooling structure, turbulence unit and turbine blade relates to aircraft technical field to solve the problem of turbine blade trailing edge cooling performance is poor, radial distribution uneven in the prior art. The cooling structure of the utility model, including turbulence rib and turbulence column, the periphery of turbulence rib sets at least 2 turbulence columns. The utility model can increase the contact area between turbine blade pressure side wall surface and suction side wall surface, thereby enhancing the pressure -bearing capacity of turbine blade, and promoting structural strength.

The utility model relates to the field of microbial fermentation, in particular to a simple microbial fermentation device for aquatic products, which can connect a plurality of tank bodies together and share one driving mechanism, can greatly reduce the cost and is convenient to maintain. Comprising a plurality of tank bodies which are transversely arranged at intervals, the tank bodies are spherical, gear discs meshed with each other are fixedly arranged at the vertical maximum diameter positions of the adjacent tank bodies, transverse rotating shafts are fixedly arranged at the center positions of the left side face and the right side face of each tank body respectively, and the rotating shafts are rotationally connected with bearings on a rectangular frame surrounding all the tank bodies respectively. Supporting pieces are arranged on the bottom face of the rectangular frame at intervals, the bottoms of the supporting pieces are fixed to a bottom plate, the gear disc on the leftmost tank body is connected with a driving mechanism on the left side, and the driving mechanism is fixed to the bottom plate. A material injection opening is formed in the tank body on one side of the gear disc, and a sealing cover is in threaded sealing connection with the material injection opening; and a pressure release valve is also arranged on the tank body on one side of the sealing cover. The device is simple to operate, convenient to use and suitable for fermentation of various microbial bacteria.

This utility model discloses a structure for a municipal road landscape green corridor, belonging to the technical field of green corridors. It includes corridor columns, with a water storage component at the top of each column. The water storage component includes a water tank, which is fixedly connected to the top of the column. Collection pipes are installed at both ends of the water tank, and inspection valve covers are connected to both ends of each collection pipe. A cleaning component includes a reciprocating scraper that slides inside the water tank. The cleaning component allows for scraping and cleaning of the inner wall of the water tank. The reciprocating scraper removes sediment and impurities from inside the tank, which are then deposited in the collection pipes. This allows for easy cleaning of the water storage component by removing the inspection valve covers at both ends of the collection pipes.

The invention relates to a mineral exploration and detection device with a striking function, which comprises a supporting seat, a receding hole is formed in the supporting seat, a driving mechanism and a probing and striking mechanism connected to the output end of the driving mechanism are arranged on the supporting seat, and the driving mechanism acts on the probing and striking mechanism, so that the probing and striking mechanism can penetrate through the receding hole and move up and down relative to the receding hole; the probing and beating mechanism comprises a probing pipe and a beating assembly connected to the bottom end of the probing pipe. A detector is arranged in the detection tube; the beating assembly comprises a beating fixed pipe and a beating movable pipe movably connected to the bottom end of the beating fixed pipe. According to the striking assembly, through the arrangement of the piston pipe and the piston column, the telescopic driving device can drive the striking head to instantly stretch out of the striking movable pipe in a non-contact mode so as to strike blocked broken stone, the probing and striking mechanism can conveniently and smoothly enter a drilling area, and a detector can conduct detection work at the specific depth; the device has the advantages of high efficiency and stable operation.

This utility model discloses an electromagnetic interference-resistant cleanroom robot cable package, including a cable package body. The cable package body includes a cable clamp for securing the cable and a protective sleeve. The protective sleeve is detachable and wraps around the outside of the cable clamp. The protective sleeve includes an outer protective layer and an inner shielding layer. The inner shielding layer can shield signals generated during cable use, and the outer protective layer is made of ePTFE material. A cable package mounting and fixing device is also disclosed. The bottom of the cable package clamp is detachably connected to a connecting base. A fixing strap can fix the connecting base to a robotic arm. The cable package clamp includes an upper clamp cover and a lower clamp cover. The upper clamp cover is detachably fitted onto the lower clamp cover, forming a receiving chamber between the upper and lower clamp covers for the cable package body to be inserted. This utility model can shield interference signals, preventing the cable from becoming entangled or damaged by the robotic arm, thus avoiding the robot's malfunction.

The utility model relates to the technical field of perfume sprayers, and discloses a perfume sprayer with a protective structure, which comprises a water bottle, a spraying component used for spraying perfume is mounted at the top of the water bottle, and a protective component used for protection is mounted on the outer side of the water bottle. The bottom of the water containing bottle is provided with a dismounting and mounting assembly used for dismounting and replacing work, the protection assembly comprises a buffer layer fixedly connected to the outer side of the water containing bottle, the side, close to the water containing bottle, of the buffer layer is provided with evenly-distributed mounting grooves, and the inner sides of the mounting grooves are fixedly connected with rubber air bags; the outer side of the buffer layer is fixedly connected with a protective shell, and the outer side of the protective shell is slidably connected with a sliding cylinder. According to the perfume sprayer with the protection structure, the protection effect on the perfume sprayer can be achieved, perfume leakage caused by bottle breakage is prevented, meanwhile, disassembly and assembly are convenient, and the practicability of the perfume sprayer is greatly improved.

The utility model relates to the technical field of candle processing, and discloses a candle cup clamping mechanism for candle processing, which comprises a base frame and a placing table, the placing table is placed on one side of the base frame, the upper top end of the base frame is fixedly connected with a side plate, and the side plate and the outer side wall of the placing table are fixedly connected with an electric push rod. The telescopic end of the electric push rod is fixedly connected with a U-shaped frame, a clamping assembly for limiting a candle cup is arranged at the inner bottom end of the U-shaped frame, two sets of same clamping plates are driven by the telescopic end of an air cylinder to move, at the moment, a rack drives a gear to rotate, the other rack is driven by the gear to move, and therefore the transmission effect is achieved; due to the fact that the clamps below the clamping plates are arranged in a staggered mode, when the two sets of clamping plates move, the clamping plates can make contact with the outer wall of a candle cup, the candle cup is clamped through the moving clamping plates, the arranged elastic blocks can make contact with the outer wall of the cup, and the purposes of protection and clamping effect improvement can be achieved.

The utility model discloses an anti-seismic support connecting device which comprises a mounting plate and a mounting sleeve, the mounting sleeve is fixedly arranged on the right side of the mounting plate, and a clamping assembly is arranged in the mounting sleeve. Through the design of double clamping functions, the inner wall and the outer wall of the pipeline can be clamped, the situation that the pipeline deforms due to the fact that the one-way clamping force of the pipeline is too large is avoided, and therefore by means of the device, the pipeline clamping and fixing effect is improved, and the pipeline is protected. Through the design of a supporting function, the internal strength of the mounting sleeve can be strengthened, the stability of the overall strength of the mounting sleeve is ensured, in addition, through the design of the receding holes and the receding holes, the interior of a pipeline can be in a communicated state with the outside, and it can be known that by means of the device, the pipeline can be effectively protected. And the normality of the pipeline in use is ensured.

The casement window sash frame structure with the water guide structure is characterized by comprising a frame body, a clamping groove is formed in the top of the frame body, the outer groove bottom of the clamping groove is a water guide inclined face which is high inside and low outside, a shielding wing which extends obliquely downwards is arranged on the outer wall of the frame body, and the water guide inclined face is arranged on the outer wall of the frame body. At least one drainage hole is formed in the outer wall of the frame body, the inner end opening of the drainage hole is located on the lower top face of the water guiding inclined face, and the outer end opening of the drainage hole is located above the shielding wing. The waterproof sealing rubber strip not only can play a very good role in water diversion, but also can play a very good role in shielding and protection, is favorable for improving the waterproof performance and prolonging the service life of the sealing rubber strip so as to greatly reduce the probability that rainwater flows backwards into a room, and has the advantages of simple structure, good waterproof performance, strong applicability and the like.

This utility model belongs to the technical field of track wheel equipment limiting devices, specifically relating to a non-track parking stop support device for track wheel equipment. The device includes a track wheel seat and a retaining ring; wherein the track wheel seat matches the shape of the track wheel and can accommodate up to half of one track wheel; the track wheel seat and the retaining ring are detachably connected to encircle the track wheel. This utility model provides a non-track parking stop support device for track wheel equipment, effectively solving the problems of limited track space and inconvenience in accessing track wheel equipment, improving the efficiency of accessing and storing track wheel equipment when parked off-track, protecting the ground during operation, preventing track wheel equipment from rolling, and eliminating the risk of safety accidents.

This utility model discloses a pressure control mechanism for a steam generating device, belonging to the field of steam equipment pressure control. The pressure control mechanism includes a housing with through holes on its left and right side walls. A heat dissipation structure is installed on the housing, and protective structures are installed on the left and right side walls of the housing corresponding to the through holes. The heat dissipation structure includes a dual-axis motor installed on the inner cavity end face of the housing and two sets of rotating rods rotatably installed on the inner cavity side walls of the housing. By setting up the heat dissipation structure, the control flow inside the housing is accelerated, quickly removing heat from the circuit components. This avoids the problem in existing pressure control mechanisms where electronic components generate heat during operation, and the heat cannot be dissipated from the machine in time by relying solely on the pressure control mechanism's own heat dissipation holes, leading to overheating and malfunctions of electronic components. This protects the circuit components inside the housing and extends the service life of the pressure control structure.

The utility model discloses an electrostatic chuck thimble telescopic protection tube, which comprises a metal shell, a thimble body, an outer tube sleeve and an inner tube sleeve, the thimble body is arranged inside the metal shell, the top end of the thimble body extends to the outside of the metal shell, and a spring piece is arranged inside the metal shell outside the thimble body. The spring piece is connected with the ejector pin body, the outer wall of the top of the ejector pin body is sleeved with the inner pipe sleeve, the inner pipe sleeve is sleeved with the outer pipe sleeve, mounting holes are formed in the outer wall of the top of the ejector pin body, and threaded holes are formed in the positions, at the mounting holes, of the outer wall of the inner pipe sleeve. And a screw is in threaded connection with the interior of the threaded hole, and one end of the screw extends into the mounting hole. The ejector pin can be protected from being collided and damaged, the service life of the ejector pin is prolonged, and the ejector pin is smooth to extend and retract and is not blocked.