77 results about "Air pressure effects" patented technology

The invention provides a pneumatic soft body gripper. The pneumatic soft body gripper comprises pneumatic soft body drivers and a clamping device; the pneumatic soft body drivers are of hollow columnar structures with air cavities, the cross sections are semi-circular, the three pneumatic soft body drivers are evenly distributed according to the circumference to form the gripper, one end of each pneumatic soft body driver is fixed to the clamping device which is designed in an auxiliary manner, under the air pressure effect, the free end can generate bending action facing the round center direction, and the three pneumatic soft body drivers are in coordination to achieve gripping task. Compressibility of gas and elasticity of the soft body drivers enable the gripper to have the good characteristic of grabbing fragile items in a non-damage manner. Due to the clamping device designed in the auxiliary manner, a gas source is connected into the pneumatic soft body drivers, the soft body gripper is fixed to the tail end of a mechanical arm, the soft body gripper only needs to have two states of inflation and deflation to achieve grabbing and releasing of the items, and the pneumatic soft body gripper is simple in structure, high in self-adaptation capacity, simple in control, low in cost, high in generality and suitable for automation work of small fruit and vegetable picking, dailysmall object classified storage and the like.

The invention provides an automobile skylight pressurized sealing system and belongs to the technical field of automobile skylight sealing. The automobile skylight pressurized sealing system comprises a skylight opening flange, skylight glass and a seal ring provided with a cavity in the inside, wherein the seal ring is fixed on the edge of the skylight glass and the skylight opening flange, and an interface communicated with the inside cavity is further arranged on the seal ring and communicated with an air inflating and deflating device including a magnetic valve and an electric air pump. When automobile skylight is opened or closed, the magnetic valve in the air inflating and deflating device can be controlled to discharge compressed air in the seal ring in to the atmosphere, the seal ring contracts under the elastic effect or the sucking negative-pressure effect of the electric air pump to enable sealing matched portions of the automobile skylight to be in clearance fit, and the friction resistance is very small when the automobile skylight is opened or closed. After the automobile skylight is closed, the electric air pump of the air inflating and deflating device inflates the air into the seal ring to enable the seal ring to expand under the air pressure effect, and the sealing matched portions of the automobile skylight are in clearance fit to form reliable sealing.

The invention provides a process and equipment for rapidly removing iron in slurry and belongs to a magnetic separation field of separating solid materials in fluid. The equipment comprises a slurry cylinder; a magnetic rod group is arranged in the slurry cylinder; a sealed air chamber is arranged at the upper end of the slurry cylinder; an elastic rubber casing pipe is arranged in the sealed air chamber; the magnetic rod group rises after a magnetic rod absorbs iron chips for certain time; when the magnetic rod passes through the elastic rubber casing pipe, the elastic rubber casing pipe and the magnetic rod are separated; the elastic rubber casing pipe protrudes towards the outer wall of the magnetic rod under an air pressure effect and is pressed on the outer wall of the magnetic rod; then the magnetic rod group falls down; the iron chips on the magnetic rod are adhered to the elastic rubber casing pipe after being removed; and the magnetic rod group continues to fall and reset, so that a primary iron removing process is completed. Compared with the prior art, motion states of the magnetic rod only have a rising process and a falling process. Furthermore, when the magnetic rod falls down, the iron chips not only can be removed but also can be absorbed in the slurry, so as to greatly reduce the time of removing the iron of each time and improve the production efficiency.

The invention relates to an assembly external wall heat insulation system and an assembly method of the assembly external wall heat insulation system, and belongs to the field of building external wall heat insulation. The assembly external wall heat insulation system mainly comprises a heat insulation material, a support seat, a keel, a wedge-shaped gasket, a heat insulation pad, a panel clamp element and an external wall panel, wherein the heat insulation material is connected to a wall body, the support seat is fixedly arranged on the wall body and is connected with the keel, and the panel clamp element is used for supporting the external wall panel and is connected with the keel. The assembly method comprises the following main steps that the support seat is fixedly arranged on the wall body, then, the heat insulation material is fixedly arranged on the wall body, the keel is fixedly arranged on the support seat, the panel clamp element and the external wall panel are installed, and then, gaps are sealed. The heat insulation material filling mode in the external wall heat insulation system can avoid the negative air pressure effect, the external wall heat insulation system can realize the horizontal, transverse and vertical three-dimensional adjustment in all angles, the panel installation position and the flatness are ensured, the field installation mode is adopted, the field construction efficiency can be improved, and the construction period is shortened.

The invention discloses a transmission protection system. The transmission protection system comprises a first motorized valve, a gear locking piston, a transverse shift level, a shift rail and a combined air cylinder. The first motorized valve is controlled by the shift rail of the combined air cylinder of an auxiliary box; when the auxiliary box is just in a high gear or low gear, an opening A of the first motorized valve is communicated with an opening T of the first motorized valve, the first motorized valve exhausts air, the gear locking piston does not have an air pressure effect, and the transverse shift level can engage a gear by rotating; when the auxiliary box is not properly in a high gear or low gear, an opening P of the first motorized valve is communicated with the opening A of the first motorized valve, the first motorized valve takes in air, and the gear locking piston locks the transverse shift level under the air pressure effect so that the transverse shift level can not engage a gear by rotating. Because the transverse shift level is prevented from rotating by the gear locking piston so as to prevent two non-standard gear shifting operations, the service life of a transmission can be effectively prolonged.

The invention relates to a child guard railing. A plurality of transverse rods are welded through vertical rods for forming an integral grid type. The child guard railing is characterized in that the transverse rods are formed through welding and fixing the tail ends of two horizontal pneumatic rods in arrangement of opposite directions, and the end parts of piston rods of the pneumatic rods are connected with rubber pads in suction disc structures. The child guard railing has the advantages that when the child guard railing is used, the piston rods of the pneumatic rods are firstly pressed back, the length of the piston rods extending out of a pneumatic rod cylinder body is reduced so that the whole of the guard railing can be placed between two side walls at stairs, toilets or kitchen gates, a bleeder valve of the pneumatic rods is opened, the piston rods of the two pneumatic rods respectively and outwards extend under the internal air pressure effect, the rubber pads arranged at the end parts of the pneumatic rods are butted against the walls at two sides for realizing the fixation, the use is very convenient, the rubber pads are in the suction disc structures, the friction between the transverse rods and the walls is enhanced, and the safety performance is improved.

The invention discloses anti-dazzle electronic grade glass and a manufacturing process thereof. The manufacturing process comprises the following steps: adding an abrasive material of a certain mesh number into a solution, fully mixing, acting on the surface of a glass body by virtue of the air pressure effect of 1-5MP so as to produce roughness of 0.05-1.2UM; performing chemical polishing on theglass body so as to form an anti-dazzle layer on the surface; cutting the glass body into a shape of a certain size; performing toughening treatment on the glass body; forming at least one ink printing layer with a certain color and identifier on the back of the glass body by adopting a silk-screen printing process; adding an anti-oil layer on the surface of the glass body; and adhering gum to theback of the glass body. The anti-dazzle electronic grade glass disclosed by the invention has the beneficial effects that contamination in the manufacturing process is reduced, and the anti-dazzle electronic grade glass has the characteristics of being anti-dazzle, anti-oil and difficult to deform.

The invention discloses a watermelon juicer facilitating separating seeds. The watermelon juicer comprises a base. A machine body is arranged on the top wall of the base. A cover is in threaded connection with the upper end of the machine body. A filtering cover is slidably connected with the inner wall of the machine body. A plurality of through holes are formed in the bottom wall of the filtering cover. An installation seat is rotatably connected with the inner bottom wall of the filtering cover. A threaded rod is mounted at the top end of the installation seat. A casing pipe is arranged onthe lateral wall of the threaded rod in a sleeving mode. A threaded cover is in threaded connection with the top end of the threaded rod. Through cooperation of structures, watermelon juicing processcan be quickly conducted; watermelon juice can be separated form the seeds in the juicing process; the watermelon juice can be discharged through air pressure effect; and the seeds can be taken out after juicing. The structure is simple and operation is convenient, the watermelon juice can be conveniently separated from the seeds, juicing operation can be accelerated, and commercial activity conduction is facilitated.

The invention provides a real-time online gamma and electron absorbed dose rate testing system which comprises a front-end dosimeter, a clamp, a radiation-resistant cable, a multichannel scanning card component, a current-voltage measuring device and a control computer containing recording and calculation software. A semiconductor diode sold on the market is used as the dosimeter which increases measuring precision and space resolution as compared with an ionization chamber dosimeter, dosimeter cost is lowered, the dosimeter is easy to replace, high-voltage bias is not needed, and the dosimeter is unaffected by air pressure. The real-time online gamma and electron absorbed dose rate testing system has the advantages that real-time online monitoring of absorbed dose rate is achieved, and the system is applicable to remote real-time monitoring of the absorbed dose rate of strong radiation fields such as a cobalt source radiation device, an electron beam radiation device and a nuclear power station; the system is good in radiation resistance, and multiple dosimeters can be assembled to the system so as to achieve multi-point measuring and data processing of the dose rate.

The invention discloses a printing ink cartridge and a printing device. According to the printing ink cartridge, a linear piston cylinder is used as a main body of the ink cartridge, and a squeezing cavity in the cylinder is used as an ink cartridge cavity for containing ink. The ink is kept in the ink cartridge cavity under the air pressure effect in the cavity and refers to liquid metal. By means of the printing ink cartridge and the printing device, by using the material and function characteristics of the liquid metal and the cylinder, a conventional piston cylinder is made into the ink cartridge for containing the liquid metal, and the problem that the liquid metal ink cannot be used in a traditional 3D printer due to the limitations of a material conveying power structure of the printer is solved. Meanwhile, the requirements for extra die opening and liquid metal ink cartridge customization according to the liquid metal ink are avoided, no processing equipment for preparing the liquid metal into wires is required, the matching adjustment of the liquid metal and the subsequent impurity removing technology are needless, and the 3D printing cost of the liquid metal is greatly reduced.

The invention discloses a storage tank for an efficient preservative for the metal surface. The storage tank comprises a tank body and a third sleeve; the third sleeve is mounted at the top end of the right side inside the tank body and penetrates through the tank body; a handle is arranged at the top end of the third sleeve; the handle is connected with the third sleeve through a second sleeve; a second piston is arranged in the third sleeve; and the second sleeve penetrates through the third sleeve and is connected to the second piston in a lap joint mode. According to the storage tank for the efficient preservative for the metal surface, through matching of the second sleeve and a second compression spring, the working strength of operating worker is relieved; through matching of a baffle and a torsion spring, air backflow can be prevented; through matching of a first piston and a first compression spring, air and medicament backflow under the air pressure effect can be prevented; and through matching of a gear and a transmission shaft, the gear rotates in pressurization, a fan blade is rotated through a rotating shaft to stir a medicament, and thus the situation that the medicament contains a precipitate is prevented.

The invention discloses an aluminum plastic film shell forming device which comprises a concave mould plate and a pressing plate. The concave mould plate is fixedly arranged; the top surface of the concave mould plate is used for placing an aluminum plastic film; a concave pit is formed in the top surface of the concave mould plate; and the concave pit corresponds to a sunken part which needs to be formed in shape, of an aluminum plastic film shell. The pressing plate can be arranged above the concave mould plate in an up-down sliding mode; the pressing plate can slide to the position where the pressing plate covers the top surface of the concave mould plate; the pressing plate and the concave mould plate can jointly tightly press the aluminum plastic film to enable an airtight containing cavity to be formed between the pressing plate and the aluminum plastic film; an air inlet channel is formed in the pressing plate and communicates with the airtight containing cavity; and air is pumped into the airtight containing cavity through the air inlet channel, and the middle of the top side of the aluminum plastic film can be deformed under the air pressure effect to be sunken into the concave pit.

The invention relates to the technical field of wafer defect detection, and discloses a detection method of a wafer defect detection system, the wafer defect detection system comprises a hollow operation box, and the right side of the hollow operation box is fixedly connected with a detection terminal. When the wafers are detected, the stacked wafers are placed in the vertical conveying mechanism, when the lower pressing plate and the sealing sleeve move to the position above the inner cavity of the pressure cavity, gas in the inner cavity of the pressure cavity is pumped out from the three installation gas rings, and therefore the wafer conveying device has the advantages that in the process of conveying the wafers downwards, the gas in the inner cavity of the pressure cavity is pumped out from the three installation gas rings; a plurality of wafers can be placed in a centralized mode, the wafers can be fixed in the radial direction by means of the air pressure effect and utilizing the protruding strips to move outwards, the wafers placed at the lowest position are limited by the limiting head due to the fact that the distance exists between the protruding strips and the limiting head, and then the wafers can be blocked in a centralized mode. And the effect of centralized discharging can be achieved.

The invention discloses a brake for a large rotating shaft. The brake comprises a rotating mechanism and a braking mechanism. The rotating mechanism comprises a supporting device. A shaft sleeve is arranged on the top of the supporting device. The large rotating shaft is fixed in the shaft sleeve through a bearing. A first braking plate is fixed to one end of the rotating shaft through a fixing plate. The braking mechanism comprises a main hollow shell fixing plate. A main hollow shell is fixed to the top of the main hollow shell fixing plate. An electromagnetic mechanism is installed in the center of the main hollow shell. A connecting rod penetrating through the main hollow shell is installed in the electromagnetic mechanism. By combining the electromagnetic effect and the air pressure effect, the effective and rapid braking effect can be achieved, and the rotating shaft can be braked in time; by arranging a gas pressure control mechanism in an aerodynamic part, the brake can have aneffective protection effect and is long in service life and strong in practicability.

The invention belongs to the technical field of thermal spraying, and particularly relates to a thermal spraying treatment system and a thermal spraying treatment method.In the thermal spraying treatment system, a spraying mechanism can adjust the position and the angle of a spraying head, so that the extension line of the spraying head is tangent to the surface of a workpiece, and the spraying head is fixed to the surface of the workpiece; irregular splashing when paint sprayed by the spray head makes contact with the surface of the workpiece is avoided, meanwhile, the paint is blocked through a material blocking plate, and paint splashing is further avoided; the position of a workpiece is adjusted through a positioning block, the axis of the workpiece, the axis of a first horizontal column and the axis of a second horizontal column are kept in a coincident state, the workpiece abuts against the second horizontal column through a pressing ring, and meanwhile the end face of the workpiece is tightly sucked to the end face of the pressing ring through the air pressure effect; therefore, it is guaranteed that the first horizontal column and the second horizontal column can drive the workpiece to rotate at a constant speed when rotating, the axis does not deviate when the workpiece rotates, and the surface coating thickness of the workpiece is guaranteed.

The invention discloses a simulated projectile landslide experimental device and method. The experimental device adopts a pneumatic projectile power system including a vibration device. A simulated structural surface is arranged at the top of the vibration device; a side slope soil body is arranged at the simulated structural surface; and the inside of the side slope soil body is connected with anitrogen bottle through a ventilation pipe. A simulated rainfall device is arranged at the top of the simulated structural surface. A high-strength fiber ventilating layer, an acceleration sensor, a displacement sensor and a stress sensor are arranged between the simulated structural surface and the side slope soil body. The inside of the simulated structural surface is filled with a magnetic filler; and an electromagnet is arranged inside the side slope soil body and cooperates with a flexible iron piece disposed in a projectile soil body to generate an electromagnetic force. After simulationof the motion process of the projectile soil body under the air pressure effect and the motion process of the projectile soil body under vibration, the energy losses are analyzed and thus the real principle of causing the earthquake and projectile landslide is disclosed.

The invention relates to a PTFE (Polytetrafluoroethylene) film roof transitional region waterproof cover opening and a construction method thereof. The PTFE film roof transitional region waterproof cover opening is characterized by comprising a PTFE cover opening film, a film connecting plate, reinforcing ribs and a film cover opening supporting part, wherein the film connecting plate is vertically and fixedly arranged on a top surface of a roof beam; the plurality of reinforcing ribs are fixedly connected with two side surfaces of the film connecting plate; the film cover opening supporting part is arranged at the upper part of the film connecting plate; the PTFE cover opening film covers the top of the film cover opening supporting part; the construction method comprises the following steps of positioning a steel beam, welding the film connecting plate, welding the reinforcing ribs, mounting the film cover opening supporting part, laying a film cover opening, carrying out first-time thermal connection, and carrying out second-time thermal connection and third-time thermal connection. The PTFE film roof transitional region waterproof cover opening and the construction method, provided by the invention, have the advantages that a three-step laminated and thermal connection method is adopted, so that the thermal connection tightness can be effectively enhanced, the thermal connection strength is guaranteed, and cracking and falling of a connector under the action of dynamic load can also be avoided, and furthermore, water seepage hidden troubles are reduced; the construction and installation are simple and convenient, and cover opening film abrasion and seepage risks, caused by the fact that a PTFE film roof is suffered from a negative air pressure effect for a long period, can be effectively reduced, and the service life is greatly prolonged.

The invention relates to an air outlet mechanism and an air treatment device. The air treatment device is provided with a vertical air duct, and the first upper end surface of the air duct is inclined; the air outlet mechanism comprises a first air outlet plate and a second air outlet plate, the first air outlet plate surrounds the higher side of the first upper end surface and is rotationally connected with the air treatment device, and the second air outlet plate surrounds the other parts of the first upper end surface and is connected with air treatment device; and the first air outlet plate includes a straight plate rotationally connected with the air treatment device and a curved plate connected with the straight plate, the second air outlet plate is inclined toward the outer side ofthe air duct in the direction away from the first upper end surface, an air outlet is formed between the first air outlet plate and the second air outlet plate, and the first air outlet plate can be rotated to adjust the air outlet. The first air outlet plate can be rotated to adjust the shape, size and air outlet direction of the air outlet, the air outlet flexibility and controllability are increased, control is facilitated, the satisfactory air supply volume and air pressure effect are achieved, and the air supply dead angles are eliminated; and the air outlet mechanism is high in integrity, convenient to produce and simple in assembly.

The invention provides a down slow pneumatic control distributing valve comprising a valve body, a slide seal valve core, a cylinder body, and a commutation piston in the cylinder body; the improvements are that a down slow piston is arranged between the commutation piston and a cover plate, and sealed with the cylinder body; a first air inlet is arranged between the commutation piston and the down slow piston; the cover plate is provided with a second air inlet; a journey limit sleeve mounting structure is arranged in the cylinder body, a mounting step is arranged in the cylinder body, the journey limit sleeve is sealed with a cylinder body cavity in a slide manner, and limited by the mounting step; the center of the cover plate on the tail portion of the cylinder body is provided with an adjusting bolt; the head of the adjusting bolt extends into the cylinder body. When down slow is needed, compressed air passes the second air inlet, the down slot piston pushes the commutation piston and the valve core to move for certain distance under air pressure effect, thus reducing an oil return channel, and realizing reliable and stable down slow speed; in addition, the journey limit sleeve mounting structure in the cylinder body is simple, so the journey limit sleeve is convenient to make and assemble.

The invention provides a needle storage device based on an air pressure effect, and relates to the technical field of daily supplies. The needle storage device based on the air pressure effect comprises a cylinder body, and a cylinder cover is in threaded connection with the upper end of the cylinder body; a mounting plate connected into the cylinder body in a sliding mode; a sewing needle storagemechanism connected with the mounting plate, wherein the sewing needle storage mechanism comprises a spherical air bag, a soft air guide pipe, needle storage cylinders, a hard air guide pipe, a thread ball and an elastic air bag; the spherical air bag is arranged above the mounting plate, and the outer surface of the spherical air bag is fixedly connected with a plurality of needle storage cylinders which are evenly distributed and open at one end; the thread ball for inserting a sewing needle is fixedly connected in the needle storage cylinders; and the soft air guide pipe is fixedly connected to the lower surface of the mounting plate, and one end of the soft air guide pipe is communicated with the hard air guide pipe. The needle storage device based on the air pressure effect providedby the invention has the advantage that the sewing needle can be conveniently taken and stored.

The invention discloses an automatic blanking device of a hardware stamping die, and relates to the technical field of hardware manufacturing. The automatic blanking device of the hardware stamping die comprises an automatic feeding and discharging mechanism, a stamping head and a stamping table, wherein the bottom of the stamping head is provided with the upper surface of the stamping table; thefront end of the upper surface of the stamping table is provided with the rear end of the automatic feeding and discharging mechanism; and the lower surface of the stamping head is provided with a rear end for automatic feeding and discharging. According to the automatic blanking device of the hardware stamping die provided by the invention, by combining a silicone rubber suction bottom, a sand storage part and an air pump, fine sand in the sand storage part is sucked into a pneumatic cavity of the silicone rubber suction bottom through suction force, the fine sand is tightly stacked on the surface of a stamping part through downward pressure and air pressure extrusion, and a gap between the silicone rubber suction bottom and the surface of the stamping part is blocked; and negative pressure is generated in a sealed adsorption cavity after air is pumped out, and the silicone rubber suction bottom and the surface of the stamping part are tightly adsorbed due to the air pressure effect,so that the problem that the stamping part with the frosted surface or the uneven stamping part falls off and is damaged in the sucker transportation process is solved.

The embodiment of the invention provides a forging method and device for controlling die-forging warping through a long-rod-type forge piece. The forging method comprises the steps that after a preformed blank is fixed into a die required by forging equipment, the preformed blank is continuously hammered by n times under the working air pressure effect of the forging equipment, and then an intermediate blank is obtained; the preformed blank is obtained by secondarily heating and forging bar materials; n is a positive integer; under the working air pressure effect, the intermediate blank is hammered by m times, and thus a required forge piece is obtained; m is a positive integer; and the forge piece is slowly cooled. According to the forging method and device for controlling die-forging warping through the long-rod-type forge piece, great resource waste caused by the fact that products are scrapped due to unqualified wrapping can be reduced.

The invention discloses a dust removal mechanism. The mechanism comprises a vertical plate, a supporting spindle, a middle transition disc, a rear cavity and a front cavity, wherein the rear cavity and the front cavity are arranged in the direction of the supporting spindle; a front seal cover is provided with a feeding opening used for allowing a material to be subjected to dust removal to enterin the front cavity and a discharging opening used for allowing the material to be subjected to dust removal to penetrate out from the front cavity, a passing roller set used for the material to be subjected to dust removal to be coiled is arranged in the front cavity, a small through hole used for vacuum pumping is formed in the position, corresponding to the passing roller set, of the middle transition disc, a large through hole communicating with the rear cavity is formed in the vertical plate, a blowing device and a gas conveying pipeline communicating with the blowing device are included,the blowing device is arranged to be used for blowing the material to be subjected to dust removal to enable dust on the material to be subjected to dust removal to be blown, meanwhile, the rear cavity is subjected to vacuum pumping treatment to form negative pressure, the blown dust is discharged out of the front cavity under the air pressure effect at the first time, dust is prevented from falling on the material to be subjected to dust removal again, the dust removal effect is achieved, the material can be subjected to more thorough dust removal, and the product quality is improved.

The present invention discloses a motorcycle pedal, including a pedal body and a pedal cover, the pedal cover is fixed on the pedal body, the pedal cover is made of elastic material and includes a pedal part and a connecting part, the pedal cover is connected to the pedal body through the connecting part, a hollow structure is arranged between the pedal part and the connecting part. By means of the air pressure effect formed by the hollow structure, it is capable of increasing the elasticity and damping characteristic of the pedal part, effectively buffering the vibration of the motorcycle transmitted to a driver and a passenger, improving the comfortability of the driver and the passenger, being available for the driver and the passenger to keep balance, and eliminating a potential safety hazard caused by the lose of the balance. Due to the reduce of the vibration, there is non infection or reduced infection to the driver, thus the driver may complete the operations of hanging steps, braking and the like accurately, such that the driving safety hazard is eliminated effectively, and the running safety of the motorcycle is ensured maximum. The motorcycle pedal has advantages of a simple structure, easy assembly and disassembly, and a low fabricating cost.

The invention relates to a battery cover plate assembly, a battery cell, a battery module, a power battery pack and an electric automobile. The battery cover plate assembly comprises a first afflux leading-out piece, a second afflux leading-out piece and a sealed package which is filled with a gas production medium and positioned on the inner side of the cover plate, wherein a first polar piece and a second polar piece which are in contact with the gas production medium respectively are arranged on the sealed package; the first polar piece is electrically connected with the first afflux leading-out piece; the second polar piece is electrically connected with the second afflux leading-out piece; and when the voltage difference between the first polar piece and the second polar piece exceedsa rated value, gas is produced by the gas production medium, the sealed package is torn under the air pressure effect of the gas, and the gas is drained from the sealed package and flows into a current interrupt structure so as to disconnect the electrical connection between an electrode inner terminal and an electrode outer terminal. The gas production of the sealing cavity inside the cover plate assembly can be independent from gas production inside the battery, so that air pressure can be established for the current interrupt structure in time, the current interrupt structure is snapped intime, and the safety of the battery is promoted.

The invention discloses an intelligent heat preservation cabinet with a fireproof function, which comprises a heat preservation cabinet door, a cooling liquid storage cavity is fixedly formed in the inner wall of the lower side of the heat preservation cabinet door, a cooling liquid supplementing cavity is fixedly formed in the inner wall of the upper side of the heat preservation cabinet door, and an elastic baffle is rotationally connected to the joint of the cooling liquid supplementing cavity and the cooling liquid storage cavity; a water inlet is fixedly formed in the side wall of the cooling liquid supplementing cavity, a heat dissipation box is fixedly connected to the side wall of the heat preservation cabinet door, and a ventilation pipe is fixedly installed between the side wall of the heat dissipation box and the cooling liquid storage cavity. The outer wall of the cabinet is cooled through cooling liquid, meanwhile, the blowing heat dissipation function on the internal environment of the cabinet is achieved through the evaporation effect of water liquid and the driving effect of bevel gears, in addition, through the air pressure effect generated by evaporation of the cooling liquid in the cooling liquid storage cavity, the volume evaporation of the cooling liquid is reduced, and by means of the structural arrangement of the ejector block, the function of quantitatively supplementing cooling liquid in the cooling liquid storage cavity is achieved.

The invention provides a coal seam drilling dedusting device and a drilling machine and relates to the technical field of coal seam drilling construction. The coal seam drilling dedusting device comprises a drill rod assembly and a spray assembly; a water spraying hole is formed in the drill rod assembly; and the spray assembly communicates with the drill rod assembly and is used for injecting water and air into the drill rod assembly, so that the technical problem that in the prior art, in the coal seam drilling construction process, the atomization space of a dedusting device cannot be omnidirectional, and thus the effect is poor is solved. The spray assembly injects the water and the air into the drill rod assembly, the water is sprayed out to be mist through the water spraying hole under the air pressure effect, and thus the dedusting effect is achieved. The water spraying hole is formed in the drill rod assembly, the atomization space can cover the whole interior of a drilled hole, therefore, the dedusting effect is better, the operation environment of a construction place is effectively improved, the probability of combustion explosion of coal dust is decreased, hole collapse accidents are effectively controlled, and the drilling success rate is increased; and meanwhile, the coal seam drilling dedusting device is small in size and weight and easy and convenient to operate.

The invention discloses a foundry casting die assembly comprising a base. The top of the base is provided with a movable disc, the both sides of the movable disc are provided with support plates, a side plate is arranged on the rear side of the base, the top of the side plate is provided with a top plate, a lifting shell is arranged on the bottom of the top plate and the top of the movable disc, the interior of the lifting shell is provided with a top mold, and the two sides of the inner wall of the lifting shell are provided with cooling devices. The foundry casting die assembly is provided with the lifting shell and a vacuum pump, liquid state casting materials are injected into a bottom mold, then a hydraulic lifting rod works to be capable of pushing the lifting shell to descend, protruding blocks are sequentially inserted into grooves in the support plates to make the inside of a space of the lifting shell sealed, and then vacuum pump works to vacuumize the inside of the lifting shell, so that the internal pressure of the lifting shell is at a stable value, it is ensured that the occurrence of pores caused by the fact that the casting materials bear the air pressure effect inthe molding process is avoided, and the quality of products is guaranteed.