30results about How to "Reduce the difficulty of opening" patented technology

The invention provides a high-temperature high-pressure thermal fluid seepage simulation device. The high-temperature high-pressure thermal fluid seepage simulation device at least comprises a diagenesis reaction control simulation device, a high-temperature high-pressure pump and a thermal fluid circulation unit. The high-temperature high-pressure pump and the thermal fluid circulation unit are communicated with the diagenesis reaction control simulation device. The diagenesis reaction control simulation device comprises a front cavity, a rear cavity and a connection block connected with the front cavity and the rear cavity. A press rod penetrating the connection block is arranged in the connection block. Two ends of the press rod are connected with two pistons respectively. The ends of the front cavity and the rear cavity are sealed by a front press cap and a rear press cap respectively. The diagenesis reaction control simulation device is communicated with the thermal fluid circulation unit through liquid outlet holes and a liquid inlet hole which are formed in the front cavity, and is communicated with the high-temperature high-pressure pump through an oil inlet hole of the rear press cap. Intelligently-controlled thermostatic sleeves sleeve the diagenesis reaction control simulation device and a circulation container of the thermal fluid circulation unit respectively. The high-temperature high-pressure thermal fluid seepage simulation device can simulate high-temperature high-pressure thermal fluid seepage of the stratum physically, can analyze influence degrees of different influence factors on diagenesis time quantitatively and can be used for production of artificial cores.

The invention discloses a floor type ventilation cabinet. The floor type ventilation cabinet comprises a cabinet body and a working table in the cabinet body; a front cabinet door of the cabinet body is an outward-pulling type double-door glass cabinet door; a waste gas collecting device is arranged at the top end of the cabinet body; the waste gas collecting device comprises a waste gas collecting cover, a filter bin and a heat exchange bin, wherein the filter bin is connected to the waste gas collecting cover, and the heat exchange bin is connected to the filter bin; the heat exchange bin is connected to an air suction pipeline; and the air suction pipeline is connected to an induced draft fan. The floor type ventilation cabinet is simple in structure, capable of effectively absorbing and filtering harmful gas and convenient to replace and maintain.

The invention relates to a power-assisted umbrella head for a tent, which comprises an upper umbrella head and a lower umbrella head. The lower umbrella head can move axially relative to the upper umbrella head; It is hinged with the connecting piece, and the other end is hinged with the lower umbrella head to form a triangular support structure; it also includes an independent booster assembly; the booster assembly includes a sleeve, an elastic piece and a clip; the elastic piece is pre-tensioned by the clip Encapsulated in a sleeve; the sleeve is detachably fixedly connected to the upper umbrella head and slidably sleeved in the lower umbrella head; the lower umbrella head is driven by the clamp to compress the elastic member axially; the umbrella head adopts an independent spring The sleeve independently carries the powerful booster component, which has the characteristics of modularization, can be assembled independently, integrated assembly, modular disassembly and replacement, which simplifies the installation and replacement procedures, reduces the difficulty, ensures the installation accuracy, and can be used as a common core component; The booster umbrella head provides booster for the tent during the tent stretching process.

The invention discloses a well-wall-mounted manhole cover intelligent monitoring lock device. The well-wall-mounted manhole cover intelligent monitoring lock device comprises a well wall, a manhole cover, a left elastic folding lock catch, a right elastic folding lock catch, a fixed manhole cover lock and an intelligent manhole cover lock. The left elastic folding lock catch and the right elasticfolding lock catch are installed at the bottom of the manhole cover, and the fixed manhole cover lock and the intelligent manhole cover lock which are separately matched with the left elastic foldinglock catch and the right elastic folding lock catch are separately mounted on the well wall. A well-wall-mounted manhole cover displacement dynamic monitoring probe is adopted to monitor the dip angledisplacement of the manhole cover in real time, and can be automatically folded; and the method of adopting magnetic induction to form a switching value is adopted to replace a commonly used gyroscope and inclinometer, and power consumption is greatly saved.

The invention discloses a manufacture machine and method for a red jujube with a walnut kernel, and solves the problems of low production efficiency and high cost of the red jujube with the walnut kernel in the prior art. One series of work, including the pit removal and the opening of the red jujube and the assembling of the red jujube and the walnut kernel, for manufacturing the red jujube withthe walnut kernel is finished, and efficiency is high. The technical scheme of the invention is that the manufacture machine comprises a red jujube adding device, a walnut kernel adding device, a redjujube pit removal device, a red jujube opening device and a finished product assembling device, wherein the red jujube adding device comprises a red jujube adding box and a spacing transmission beltinstalled below the red jujube adding box; the walnut kernel adding device comprises a walnut kernel adding box and an anti-stacking plate connected to the tail end of the walnut kernel adding box; the red jujube pit removal device comprises a pit removal round disk and a pit removal device installed above the pit removal round disk; the red jujube opening device comprises an opening groove structure, wherein one side of the opening groove structure is provided with a pushing mechanism, and an opening cutter is installed above the opening groove structure; and the finished product assembling device comprises a fixed clamping element and a movable clamping element, wherein the movable clamping element can carry out out reciprocating motion to be near or be far away from the fixed clamping element.

The invention provides a differential pressure sliding sleeve. The differential pressure sliding sleeve comprises an outer cylinder, an upper connector, a lower connector, an inner cylinder and a bearing ring, wherein a plurality of flow guide holes are formed in the side wall of the outer cylinder; the upper connector and the lower connector are arranged at the two ends of the outer cylinder and used for being connected with an underground pipe column respectively; the inner cylinder is arranged in the outer cylinder and used for sealing the flow guide holes; the bearing ring is arranged between the lower connector and the inner cylinder and can be dissolved under the action of working fluid; and the area of the upper end face of the inner cylinder is set to be larger than that of the lower end face of the inner cylinder so that the working fluid can form a pressure difference between the axial end faces of the inner cylinder to provide downward pressure for the inner cylinder, and then the inner cylinder can move downwards under the action of the pressure after the bearing ring is dissolved to open the flow guide holes. The invention further provides an oil-gas well fracturing construction method using the differential pressure sliding sleeve.

The invention provides a using method of an air respirator. The using method comprises the steps that a user wears the air respirator; in the expiration process, a gas firstly expired by the user every time is introduced into the gas storage chamber to be stored, and the gas later expired by the user every time is exhausted to the atmospheric environment; the first exhaled gas refers to the gas inhaled by the user last time and stored in the trachea and/or oral cavity of the user, and the later exhaled gas refers to the gas inhaled by the user last time and subjected to gas exchange through the lung of the user; and in the inspiration process, the gas exhaled by the user last time and stored in the gas storage chamber is inhaled into the lung for reuse. After the scheme is adopted, the effective use time of an existing common air supply bottle filled with fresh air can be prolonged, and the comfort in the use process is good.

The invention relates to a valve body, and solves the problem that the welding position of a decorative panel on an annular sleeve is difficult to control accurately. The valve body comprises an annular pipeline, an inserting pipe, the decorative panel and an exhaust pipe, the inserting pipe, the decorative panel and the exhaust pipe are sequentially arranged on the annular pipeline in the exhaustdirection, an air inlet is formed in the inserting pipe, an exhaust port is formed in the exhaust pipe, the exhaust pipe comprises an inclined section, the inclined section extends upwards, the exhaust port is located above the inclined section, and the valve body is characterized in that the inserting pipe is arranged on the decorative panel in a manner different from the exhaust pipe.

The invention discloses a horizontal pressure container with an auxiliary locking structure. The horizontal pressure container comprises a pressure container body. A pressure relief valve communicatesto the top of the pressure container body, a transmission bar is fixedly connected to an output end of the pressure relief valve, a rotating wheel is arranged on the surface of the transmission bar in a sleeving manner, and a bushing is fixedly connected to the right side of the rotating wheel. A limiting wheel is limited by a gear ring, so that an effect of locking the rotating wheel in an auxiliary wheel can be exerted to prevent the rotating wheel from rotating due to vibration. By pushing the rotating wheel to move, the rotating wheel drives the limiting wheel to be out of contact with the gear ring through the bushing, so that it is convenient for a user to operate the pressure relief valve. By way of replacing an operating mode of starting the locking structure independently, the starting difficulty of the locking structure is reduced, and the problem that a pressure in the pressure container is easy to change irregularly to lead to accidents when a valve shifts due to vibrationas an existing pressure container is not provided with the auxiliary locking structure is solved.

The invention discloses a safety box avoiding infant accidental touching. The safety box comprises a box body and a cover body which is provided with an opening in one end. Two sides of the box body are provided with through holes I. The lateral side of the cover body is provided with a through hole II. A connecting piece is arranged between the box body and the cover body, above the cover body and along the edge of the upper portion of the cover body and provided with a groove, a protrusion I and an adjusting device, wherein the groove is matched with the thickness of the cover body; the protrusion I is matched with the inner side of the box body; the adjusting device is used for adjusting the opening or closing of the cover body and comprises buttons and a protrusion II, the buttons arematched with the through hole I, the protrusion II is integrally formed, arranged above the buttons and matched with the through hole II, and the protrusion II, the buttons and the connecting piece are movably connected. When the buttons at the two ends of the box body are pressed, the protrusion II caves in along with the buttons, and the cover body slides to open the safety box, so that the connecting structure is stable, injuries, generated when an infant accidentally touches dangerous articles, to the infant are effectively avoided, the practicability is strong, and the safety box can be widely applied to the technical field of boxes.

The invention relates to the technical field of pipe hydraulic forming, and provides a hollow layer forming process. The process comprises the following steps: S1, performing blanking: preparing a plate with a preset size specification for rolling and plate rolling forming, and forming n through hole groups; S2, preparing a pipe blank: rolling the plate to sequentially form pipes from the first layer to the (n + 1)-th layer; S3, forming the hollow layer by adopting an internal high-pressure mode. In this way, multiple through holes are formed in the plate in advance, and then the plate is rolled into the pipe blank with the multi-layer pipe; a pre-bulging process in the prior art is replaced, so the development and manufacturing of a pre-bulging die are omitted, and the die development andprocess cost is saved. A hole patching procedure is omitted, so the forming difficulty of the water injection hole is greatly reduced; meanwhile, a plurality of groups of through holes can be formedin advance, and a plurality of water injection holes are formed after rolling, so the formation of a plurality of hollow layers is realized, and the blank of the prior art is filled. The invention provides a multi-hollow-layer thermal barrier pipe. The multi-hollow-layer thermal barrier pipe is provided with a plurality of hollow layers.

The invention discloses an RH pre-vacuumizing device and method, relates to the technical field of external refining, and solves the technical problems that a vacuum chamber in the prior art cannot have the vacuum degree before RH and a main valve is difficult to open. The device comprises a vacuum chamber, a main pipeline and a bypass pipeline, the vacuum chamber is connected with a dip pipe, the main pipeline is communicated between a vacuum system and the vacuum chamber, a main valve is arranged in the main pipeline, two ends of the bypass pipeline are respectively communicated with the main pipeline on two sides of the main valve, a bypass valve is arranged in the bypass pipeline, and the dip pipe is connected with a plugging device. By additionally arranging the bypass pipeline and the bypass valve on the main pipeline and sealing the dip pipe through the plugging device, the vacuum chamber can be pre-vacuumized through the bypass pipeline, and therefore the vacuum chamber has the vacuum degree before RH. Meanwhile, in the RH process, due to the fact that the two sides of the main valve have the vacuum degree, the opening difficulty of the main valve is lowered, and the RH efficiency is improved.

The invention relates to a food container. The food container comprises a box body, a cover body and a lock catch, the cover body is buckled above the box body, the peripheral edge part of the box body is clamped and connected with the peripheral edge part of the cover body, a storage cavity is formed between the box body and the cover body, the outer edge of the box body wraps the outer edge of the cover body, a section of gap is formed in the outer edge of the box body, the gap is exposed out of the outer edge of the cover body, the lock catch consists of a sealing strip and a pull ring part, the sealing strip is arranged in the gap, the sealing strip is connected with a cross section formed by the box body at the gap through a plurality of connecting bridges, and the pull ring part is arranged on the outer side of the sealing strip and is connected with the sealing strip. The food container is easy to open and can also ensure the sealing performance.

The invention discloses a reaction kettle pressure relief auxiliary device for p-chlorobenzyl chloride production, and relates to the technical field of chemical production. The reaction kettle pressure relief auxiliary device for p-chlorobenzyl chloride production comprises a mounting frame, a penetrating pipe is arranged at the bottom of the mounting frame, a device shell is arranged at the top of the mounting frame, a main electric control valve is arranged in an inner cavity of the device shell, and the control end of the main electric control valve penetrates through the left side of the device shell and is arranged outside the shell. According to the reaction kettle pressure relief auxiliary device for p-chlorobenzyl chloride production, two air outlet structures are additionally arranged on the reaction kettle, air pressure inside and outside the reaction kettle is balanced before the reaction kettle is opened, the opening difficulty of an operator is reduced, meanwhile, a circuit system of the whole device is simple and exists independently, the manufacturing cost is relatively low, and the existing reaction kettle can be improved, so that the waste of the existing reaction kettle is avoided, and the improvement cost is saved to a great extent.

The invention discloses a cold storage device, relates to the technical field of cold storage devices, and aims at reducing the opening difficulty of a door body of the cold storage device. The cold storage device comprises a cold storage chamber and a door body assembly, wherein the door body assembly comprises a door body which is used for opening or closing the storage chamber and a power handle which is installed on the door body; the power handle comprises a handle body, and the handle body is rotatably installed on a non-pivot side of the door body through a handle rotary shaft; a driving part and a supporting part are arranged on the parts, located on the two opposite sides of the handle rotary shaft, of the handle body; the supporting part is close to the pivot side of the door body, and the driving part is away from the pivot side of the door body; the supporting part can be driven to move along the frame of the storage chamber by the rotation of the driving part to further drive the non-pivot side of the door body to move in the direction away from the cold storage chamber. The cold storage device is used for low-temperature storage of items.

The invention relates to the technical field of oil production engineering, and discloses a sliding sleeve assembly and a construction pipe column. The sliding sleeve assembly comprises a ball intercepting sliding sleeve and at least one ball passing sliding sleeve, wherein the at least one ball passing sliding sleeve is coaxially connected to the front of the ball intercepting sliding sleeve, the ball passing sliding sleeve is configured to be capable of pushing a first sealing inner sleeve to move to the rear section of a first outer sleeve through pressure building of a fracturing ball so as to open a first flow guide opening and release the fracturing ball into the ball passing sliding sleeve or the ball intercepting sliding sleeve behind the first flow guide opening, and the ball intercepting sliding sleeve is configured to be capable of pushing a second sealing inner sleeve to move to the rear section of a second outer sleeve through pressure building of the fracturing ball so as to open a second flow guide opening and block a rear end opening of the second outer sleeve. According to the sliding sleeve assembly, the ball passing sliding sleeve and the ball intercepting sliding sleeve can be completely opened through one-time ball throwing, the level difference does not exist between the sliding sleeves, the number of construction sections of the construction pipe column can be increased on the premise that the extreme difference of the fracturing ball is not changed, and therefore the productivity advantage of an oil-gas well is fully exerted.