8results about How to "Reduce pressure area" patented technology

The invention relates to the technical field of rock-soil anchoring engineering, in particular to a tension-compression composite type anti-floating anchor rod which comprises a water stop ring, an oval bearing body, an end cap, a threaded steel bar, a first isolation sleeve and an assembly type support, the water stop ring is installed at a drilling hole opening, and the threaded steel bar is sequentially connected with the oval bearing body, the assembly type support and the end cap from top to bottom. The bottoms of the twisted steel bars are fixedly mounted in the end caps; the oval bearing body comprises a bearing plate and a bearing cap which are fixedly connected, through rib penetrating holes are formed in the bearing plate and the bearing cap, the horizontal section of the bearing plate is oval, and a convex face is arranged on the surface of the bearing plate; by using the oval bearing body, the pressure bearing area is reduced, and the accumulation risk of muck on the bearing body can be obviously reduced; the oval bearing body adopts the convex surface design, when part of muck falls into the drill hole and falls onto the end face of the oval bearing body, the muck easily slides off from the convex surface, and accumulation is avoided.

The invention relates to the technical field of rock-soil anchoring engineering, in particular to a variable-diameter tension-compression composite anti-floating anchor rod which comprises a water stop ring, a spiral bar, a spherical bearing body, an assembly type support, an end cap, a threaded steel bar and an isolation sleeve, and the threaded steel bar is sequentially connected with the spherical bearing body, the assembly type support and the end cap from top to bottom; an isolation sleeve is sleeved outside the twisted steel from the spherical bearing body to the orifice end of the drilling hole; the spherical bearing body comprises a ball head, a ball plate and a ball nut, the ball head is spherical, the bottom of the ball head is connected with the upper surface of the ball plate, the bottom of the ball plate is connected with the ball nut, and the spherical bearing body is provided with a rib penetrating hole penetrating through the ball head, the ball plate and the ball nut. The spherical bearing body can slide coarse particles in a drill hole or muck falling from a hole opening in time through the arc line of the ball head, the muck accumulation phenomenon on a traditional plate type bearing body is eliminated, the situation that the compression bearing capacity of a grouting body at the position of the spherical bearing body is not affected is avoided, and then cooperative bearing of the pressure-bearing anchoring section and the tension anchoring section is guaranteed in a high-quality mode.

A plug valve in a CO2 air conditioning system comprises a hollow valve body, a throttling column with a through hole is arranged in the valve body, and the throttling column is floatingly arranged in the inner cavity of the valve body, an expansion groove is arranged on the throttling column, cylindrical sealing parts are symmetrically arranged on the left and right sides of the throttling column, and the cylindrical sealing parts are provided with contact surfaces adapted to the outer shape of the throttling column to form a hard seal together; a guide tube, a conical ring gasket, a butterfly spring and a plug cover are also arranged in the inner cavity of the valve body on the left and right sides of the cylindrical seal, one end of the guide tube is sealingly supported on the cylindrical seal, and the other end of the guide tube is sealingly supported on the plug cover, a conical ring gasket and a butterfly spring are mounted on the guide tube, and the plug cover presses the butterfly spring to make the cylindrical seal tightly embrace the throttling column to form a seal.

Provided is a valve capable of accurately moving a valve body in a direction away from a valve seat. A bellows 60 that is expandable and contractible in an axial direction is disposed across the valve body 51 and the valve housing 10 on an axially opposite side of a valve seat 10f through the valve body 51.

The utility model discloses a high-precision low-flow-resistance stop valve, belongs to the technical field of valves, and provides the following technical scheme for solving the problem that the flow pressure adjusting precision is reduced due to vibration of a valve clack of a traditional stop valve: the valve clack is connected with a valve rod through a plurality of groups of supporting assemblies which are uniformly distributed in the circumferential direction, and an inner rod and an outer rod form an axial telescopic structure; and the turntable is in running fit with the valve rod through the L-shaped connecting ring. An annular communicating groove is formed in the top of the valve clack, an annular connecting groove is formed in the corresponding position of the bottom of the valve clack, the two grooves are communicated through communicating holes in an annular array, and a sealing ring capable of being embedded into the connecting groove is arranged in the corresponding position of the inner wall of the valve cavity. When the valve is opened, fluid can directly penetrate through the valve clack through the communicating hole to reduce impact force, the supporting assembly counteracts lateral acting force of the fluid on the valve clack through the axial bearing structure, and bending deformation of the valve rod is prevented. According to the valve, the fluid control precision and the operation stability are effectively improved while the sealing performance is kept by optimizing the fluid channel shape and the valve clack supporting structure.

The present invention relates to a device and method for measuring blood pressure and pulse wave, wherein the device for measuring blood pressure and pulse wave is provided with two air bags of different widths so that the air bags are wound around the body to press different parts of the body, and the areas of the body being pressed are different, so that the blood pressure and pulse wave data are measured, and the pulse wave air bag with a small width is used to reduce the area of ​​the body being pressed, and at the same time, the air bag is pressed on the body at the parts equivalent to the three parts of the inch, guan and chi of the body joints used in the traditional Chinese medicine pulse diagnosis, so that the pulse wave of the human body is measured more effectively and accurately, and in addition, the pulse wave air bag collects pulse waves of three bands equivalent to the floating pulse wave, the middle pulse wave and the sinking pulse wave in the process of the traditional Chinese medicine pulse diagnosis at different pressure points, and collects the three bands to form a complete pulse wave, so that the pulse wave obtained in this way is not only accurate but also convenient to collect, so that the pulse wave can be measured while measuring blood pressure.

The invention discloses an industrial pipeline orifice plate pressure-taking integrated valve group in the field of petrochemical technology, comprising a pressure-taking flange and a pressure-taking main valve and a pressure-taking auxiliary valve installed on the pressure-taking flange, wherein the pressure-taking main valve is a first sealing valve for cutting off the pressure-taking flow path, and the pressure-taking auxiliary valve is a second sealing valve for cutting off the pressure-taking flow path, and the flow paths of the two valves are both designed as bottom-sealed angle valve structures; the bottom flow path of the pressure-taking main valve is directly connected to the pressure-taking hole of the pressure-taking orifice plate, and the bottom of the pressure-taking auxiliary valve is opened in the bottom valve body chamber of the pressure-taking main valve, and after the main valve is closed and cut off, the pressure-taking flow path is completely cut off, and after the auxiliary valve is cut off, the pressure-taking flow path is also completely cut off, and the main valve and the auxiliary valve form a series double cutoff in the pressure-taking flow path. The technical problems of unsightly layout and potential safety hazards in the prior art are solved.

The utility model discloses an anti-leakage stoma base plate which comprises a plate body and two buckle noses arranged on the two sides of the plate body respectively, an integrated half protruding ring is arranged on the front surface of the plate body, a sealing rubber ring is further installed on the front surface of the half protruding ring, and an installation structure is arranged between the sealing rubber ring and the half protruding ring. An arc-shaped sliding groove is formed in the side edge of the tray body, and a T-shaped sliding block is arranged in the arc-shaped sliding groove in a sliding mode. According to the semi-convex stoma base plate, a full-convex stoma base plate in the prior art is improved and optimized, the semi-convex stoma base plate with the semi-convex ring on the surface is designed, the fitting degree can be improved and leakage can be prevented when the stoma of a patient is close to the side edge of the abdomen, meanwhile, the pressed area of the abdomen skin of the patient is reduced, and discomfort is relieved; and the buckle nose is designed to be movably adjustable, so that an operator does not need to consider the situation that the position of the buckle nose is wrong in direction and cannot tie a waistband when replacing the stoma base plate, and the replacement difficulty is reduced.