50results about How to "Act as a decompressor" patented technology

The invention discloses a link bolt capable of maintaining stable internal hydraulic pressure. The link bolt comprises a bolt head (1) and a screw (2), wherein a central passage (3) is formed in the screw (2); the wall of the screw (2) is provided with a transverse passage (4) communicated with the central passage (3); the link bolt also comprises an overflow valve; an overflow valve mounting passage (5) which is communicated with the central passage (3) is formed in the bolt head; the overflow valve comprises a gland bush (6), a valve core I (7), an adjusting nut (8), an adjusting rod (9), a piston type spring seat (10), a pressure adjusting piston (11), a spring I (12) and a spring II (13); the bolt is provided with an oil return hole (18) in the lateral direction; and the gland bush (6) and the bolt head are provided with oil discharge holes (19). By using the link bolt, the hydraulic pressure in the link bolt can be maintained constant; the hydraulic pressure is stabilized by the cooperative action of the overflow valve and the link bolt; and the link bolt has the advantages of convenient installation and low failure rate.

The invention discloses a magic ring toy for pressure relief. The magic ring toy includes a toy body, and a through hole is formed in the middle of the toy body. The magic ring toy is characterized inthat the toy body includes a first surface layer A, a second surface layer B, a third surface layer C, a fourth surface layer D, a fifth surface layer E and a sixth surface layer F; the first surfacelayer A is connected to the top of the toy body, multiple grooves are formed in the lateral side of the first surface layer A and internally provided with multiple plastic gears through bearings, a U-shaped groove is formed in the other side of the surface of the first surface layer A, and rolling beads are embedded in the U-shaped groove. Through arrangement of different types of small buttons and small toys, the daily life of a user is diversified, and the user can pay more attention on work so that some people who have the hobby of doing small exercise during work can be satisfied; the function of relieving pressure is achieved, and through arrangement of a lapping ring and a key ring mounting hole, the user can conveniently put the lapping ring on one finger and rotate the lapping ring.

The present invention relates to the technical field of photovoltaic tools, and discloses a photovoltaic module frame having a protection function. The photovoltaic module frame comprises a pedestal,the two sides of the top portion of the pedestal are fixedly connected with limiting seats, the top portions of the two limiting seats are fixedly connected with limiting columns, the outer surfaces of the two limiting columns are sleeved with limiting springs, the top portions of the two limiting springs are respectively fixedly connected with the two sides of the bottom portion of a rotary table, the middle portion of the bottom portion of the rotary table is fixedly connected with a location seat, the two sides of the bottom portion of the location seat are fixedly connected with hinge racks, one ends of the bottom portions of the two hinge racks are fixedly connected with the two sides of the middle portion of the top portion of the pedestal through hinge seats, the middle portions ofthe bottom portion of the location seat is fixedly connected with a first buffer rack, the bottom portion of the first buffer rack is fixedly connected with a pneumatic seat, and the bottom portion ofthe pneumatic seat is fixedly connected with a second buffer rack. The photovoltaic module frame having the protection function can have limiting and fixing effects on the photovoltaic panel throughprotection frames and location plates so as to ensure stability of the photovoltaic panel in the use process.

The invention discloses a keel triple-connection structure of an internal-connection curtain wall. The structure comprises a left horizontal keel, a vertical keel, a right horizontal keel and adjustment blocks, wherein the left horizontal keel and the right horizontal keel are fixed on the left side and the right side of the vertical keel respectively by connecting assemblies; each of the connecting assemblies comprises a connecting block and a friction block; one of the connecting blocks is disposed in the left horizontal keel and the right horizontal keel respectively; end parts of the connecting blocks penetrate through holes in the side wall of the vertical keel and get contact inside a groove of the vertical keel; the friction block is disposed between the two connecting blocks; a press plate is disposed on the top surface of the connecting block; a square hole and a connecting shaft are disposed on the lower side of the press plate; the top face of a transmission belt get contactwith a fixation pillar inside the groove of the vertical keel; and the lower part of the transmission belt extends into a pull force cylinder. The keel triple-connection structure of the internal-connection curtain wall disclosed by the invention has the beneficial effects that technical problems in the prior art that existing structures are not capable of rust resistance, seismic resistance andsize self-adjustment and have a high requirement for accuracy of a constituted part, and so forth can be solved; and promotion and application of the device can be promoted.

The application relates to the technical field of valves, in particular to an electromagnetic valve. The electromagnetic valve comprises a valve body, an electromagnetic mechanism, a valve body diaphragm, a connecting rod and a pressure-reducing diaphragm. The valve body diaphragm is arranged between a seat rack and a main valve opening. Additionally, the main valve opening is sealed or opened. The valve body diaphragm is equipped with a by-pass opening and a pilot hole. The connecting rod is slidably inserted into the pilot hole and comprises a blocking end and a connecting end. In the normalstate, the blocking end opens up the pilot hole. The connecting end is connected with the pressure-reducing diaphragm. The pressure-reducing diaphragm is arranged at one end where a medium outlet communicates with the main valve opening and opposite to the main valve opening. At least a part of the pressure-reducing diaphragm can slide along the axial direction of the pilot hole relative to the valve body. Only the valve body diaphragm and the pressure-reducing diaphragm are required to be added into the electromagnetic valve so that the pressure reduction effect is realized. Therefore, the electromagnetic valve and a pressure-reducing valve gather together. The electromagnetic valve has a simple structure. Without reinstalling the electromagnetic valve or increasing the size thereof, cost is lowered.

The invention provides a subway electric power maintenance workbench convenient to maintain. The workbench comprises a supporting frame, anti-skid seats, inserting shells, inserting boxes, a fixed topseat, a fastening block, a threaded rod, a bearing, a jacking plate, a rotating handle, a cleaning box structure, a machining and grinding disc structure, a supporting and standing seat structure anda pressure reduction plate structure, wherein the anti-skid seats are correspondingly in threaded connection with the lower end of the supporting frame, meanwhile, a pressure reduction plate structure is arranged at the upper end of the supporting frame, and the fixed top seat is arranged on the left side of the upper surface of the pressure reduction plate structure through bolts. The subway electric maintenance workbench convenient to maintain has the beneficial effects that through the arrangement of the cleaning box structure, clean water can be conveniently injected into a cleaning blockconveniently, meanwhile, subway electric power parts can be cleaned conveniently through the cleaning block, and then the maintenance work can be conveniently carried out; and due to the arrangementof the machining and grinding disc structure, during work, the grinding function can be achieved on the subway electric power parts, and then the functions of the subway electric power maintenance workbench are increased.

The energy-saving heat exchange equipment comprises a fixed pipeline, a fixed ring is fixedly connected to one side of the fixed pipeline, a plurality of clamping grooves are formed in the surface of the fixed ring, the clamping grooves are formed in the surface of the fixed ring in an annular array mode, a water drainage opening is formed in the fixed ring, and a connecting ring is fixedly connected to the other end of the fixed pipeline; external threads are arranged on the outer wall of the connecting ring, a limiting groove is formed in one end of the connecting ring, a plurality of water inlet holes are formed in the limiting groove, and a supporting rod is fixedly connected to the inner wall of the limiting groove; compared with the prior art, when sewage passes through the driving shaft, the driving shaft can be driven to rotate under the action of a driving piece, and in the rotating process of the driving shaft, under the action of a fixed shaft and a movable groove, the driving shaft can reciprocate back and forth, and the flow direction of the sewage can be intermittently changed; the heat exchange time of sewage can be prolonged, and meanwhile, the sewage can be stirred, so that the condition of non-uniform sewage temperature is avoided.

The invention discloses an internal connection type curtain wall keel triple connection structure, which comprises a left horizontal keel, a vertical keel, a right horizontal keel and an adjustment block, the left horizontal keel and the right horizontal keel are respectively fixed on the left side of the vertical keel and the On the right side, the connecting assembly includes a connecting block and a friction block. A connecting block is respectively arranged inside the left horizontal keel and the right horizontal keel, and the end of the connecting block passes through the through hole on the side wall of the vertical keel and is inside the groove of the vertical keel Contact, the middle of the two connecting blocks is provided with a friction block, the top surface of the connecting block is provided with a pressure plate, the lower side of the pressure plate is provided with a square hole, a connecting shaft, and the top surface of the transmission belt is arranged in the groove of the vertical keel. The fixed columns are in contact with each other, and the lower part of the transmission belt extends into the tension cylinder. The triple connection structure of internally connected curtain wall keels disclosed by the invention solves the technical problems in the prior art that it does not have anti-rust, anti-seismic, size self-adjustment capabilities, and high precision requirements for components, and is beneficial to the popularization and application of the device.

The invention relates to a flexible freezing spray pipe for spraying freezing treatment in an airway, and the spray pipe comprises a high-pressure spray pipe and a return pipe sleeved outside the high-pressure spray pipe; an annular return space is formed between the return pipe and the high-pressure spray pipe, a plurality of spraying holes are formed in the end face of one end of the return pipe, one end of the high-pressure spray pipe is provided with an opening, the opening end of the high-pressure spray pipe directly faces the spray hole of the return pipe, and the other end of the high-pressure spray pipe is connected with high-pressure gas-liquid CO2. According to the flexible freezing spray pipe for the in-airway injection freezing treatment, CO2 is adopted as a refrigerant, the freezing effect is generated at the top end of the guide pipe through gas release and rapid expansion, the lowest temperature of the top end of a probe can reach about-80 DEG C, and the temperature is not low as liquid nitrogen, so the flexible freezing spray pipe is relatively safe to the airway, high-pressure CO2 is prevented from being directly injected into the airway, and the damage to the air passage is reduced.