14results about How to "Solve supportive" patented technology

The application provides a method and device for establishing a fine choke system in a middle-deep shale gas horizontal well flowback stage, and the method comprises the following steps: S100, collecting original data of a research area; S200, calculating a production pressure difference corresponding to different choke sizes; S300, obtaining a stress sensitivity curve of the production pressure difference corresponding to different choke sizes; S400, obtaining artificial fracture parameters through history matching; S500, establishing a flowback model; S600, establishing a flowback numerical model; and S700, analyzing based on a numerical simulation result of the flowback numerical model. The application solves the problem that a field horizontal well flowback system lacks theoretical support and technical guidance, can reduce the influence of stress sensitivity damage, support agent backflow and embedding, and ground process erosion or blockage in the flowback process, and lays a foundation for maximizing the productivity of a shale gas well.

The application discloses a kind of across existing line portal pier deck beam construction platform and its installation method, including double-layer bailey beam component;Double-layer bailey beam component includes two bailey beam assemblies erected in the transverse direction of main crossbeam at the both ends of main crossbeam, bailey beam assembly is oppositely spaced;Located in the lower layer of double-layer bailey beam component is provided with installation platform, and the lower layer main protective shed frame is arranged between the two bailey beam assemblies on installation platform, and the lower layer walking platform and the lower layer side protective shed frame are arranged outside the two bailey beam assemblies on installation platform;Located in the middle layer of double-layer bailey beam component is provided with middle layer support platform, and middle layer support platform is between the two bailey beam assemblies;Located in the upper layer of double-layer bailey beam component, upper layer walking platform and upper layer protective shed frame are respectively arranged at the upper end of the two bailey beam assemblies.Using protective structure composed of double-layer bailey frame component, the problem existing in deck beam support and protection in the construction of across existing line deck beam is well solved.

The utility model relates to the technical field of pneumatic jumbolters, in particular to a pneumatic jumbolter for a coal mine, and aims to solve the problems that the bottom of a drilling machine lacks an auxiliary supporting mechanism, the drilling machine is only placed on the ground and is easy to support unstably, slide and deviate during working, so that the whole device falls to the ground, and the drilling machine is inconvenient to operate. Therefore, an operator is hurt, and the movement is inconvenient. Comprising a pneumatic jumbolter body, a drill bit assembly is arranged on the top area of the pneumatic jumbolter body, a control handle is arranged on the top area of the pneumatic jumbolter body, and a supporting mechanism is arranged at the bottom end of the pneumatic jumbolter body; the supporting mechanism further comprises a supporting seat, a first bearing, a fixing column, a rotating table, a fixing plate and a first rotating shaft, a mounting groove is formed in the top end of the supporting seat, the first bearing is fixedly connected with the corresponding mounting groove, and the fixing column is fixedly sleeved with the corresponding first bearing.

This invention relates to the field of door and window profile cutting technology, and more particularly to a cutting support device for calibrating the verticality of the end face of PVC door and window profiles. The device includes support legs and a worktable, with the worktable fixedly connected to the top of the support legs. A horizontally movable cutting device is located on the rear side of the top of the worktable. This invention significantly improves clamping stability and processing accuracy during the cutting process by integrating a dynamic pressure compensation mechanism. Specifically, the calibration extrusion plate performs initial clamping and verticality calibration of the profile under the drive of a micro-electric steel. An integrated thin-film pressure sensor monitors the clamping force in real time and forms a closed-loop control system with the PLC controller and the micro-electric steel. When the movable cutting device encounters resistance changes due to uneven profile wall thickness, the system can instantly fine-tune the clamping force based on pressure feedback, achieving active suppression of cutting vibration and dynamic compensation for clamping loosening, thereby ensuring the verticality and flatness of the cut end face.

The application discloses a large-scale diffusion section dismounting device, which comprises a hanging beam, a movable hook arranged at the top end of the hanging beam, a main shaft, one end of which is connected with the hanging beam through a rotating mechanism, the other end of which is connected with a rocker arm sliding block mechanism, the rocker arm sliding block mechanism comprising a supporting disc, a driving rod and a sliding block assembly arranged on the supporting disc, a rocker arranged between the driving rod and the sliding block assembly, a handle connected with the driving rod, and a locking rod for locking the supporting disc and the driving rod, one end of the main shaft being sequentially connected with the supporting disc and the driving rod, the sliding block assembly comprising a first sliding rail and a second sliding rail and a sliding block arranged between the first sliding rail and the second sliding rail, the sliding block being slidable to the outside of the edge of the supporting disc, a diffusion section wrench arranged on the main shaft and at one end of the rotating mechanism, the diffusion section wrench being connected with the two ends of the diffusion section respectively. The application provides a large-scale diffusion section dismounting method, and the device and the method realize efficient, safe and reliable installation of the large-scale diffusion section.

The utility model provides a kind of battery box and the battery with it, battery box includes box, the inside of box has accommodating cavity, at least one support seat is provided on box;Supporting assembly, supporting assembly is detachably connected with box, supporting assembly is movably arranged relative to box along first direction, supporting assembly has the working position of being completely located in accommodating cavity, when supporting assembly is located in working position, supporting assembly is connected with at least one support seat, and supporting assembly separates accommodating cavity into at least two sub-cavities along second direction, wherein, at least one sub-cavity forms the installation space of accommodating single-layer battery module.The present application solves the problem that battery box in prior art requires large space when installing double-layer module.

The utility model discloses a multi-directional positioning railway track gantry hydraulic supporting device which comprises a gantry body, hoisting equipment is installed at the upper end of the gantry body, a walking mechanism is arranged at the lower end of the gantry body, installation plates are fixed to the two sides of the gantry body, bearing blocks are fixed to one sides of the installation plates, and the bearing blocks are fixed to the other sides of the installation plates. A sliding groove is formed in one side of the bearing block, a forward and reverse screw rod is jointly and rotationally connected between the opposite side walls in the sliding groove, and two sliding blocks are installed in the sliding groove. The portal frame can be accurately positioned to a position where the portal frame needs to work, improves the construction efficiency and the installation precision of track parts, meanwhile can enable supporting force to be evenly distributed, avoids the problem that a traditional portal frame is uneven in supporting force on a curve track section, further enhances the supporting stability, and reduces the construction cost. Risks of shaking and inclining of the portal frame in the working process are reduced, and life safety of constructors and normal operation of construction equipment are guaranteed.

The utility model provides a kind of head-mounted video recording module and multi-scene connecting structure, belong to head-mounted video recording equipment technical field, including ear clip, elastic connecting pipe, plug-in part, video recording module, plug-in positioning mechanism and elastic pressure contact mechanism, the modular assembly of video recording module is realized by double buckle structure of plug-in positioning mechanism and elastic pressure contact mechanism composition, so that in the cooperation guide plug-in strip accurate alignment of positioning slot and ear seat, utilize torsional spring drive's pressure buckle locking elastic pressure slot, realize firm connection;Not only applicable to binaural wearing, but also can be through the overturning of silica gel cover to adapt to the different width of glasses leg of glasses, effectively eliminate shaking, significantly improve the scene compatibility and wearing reliability of equipment;Elastic connecting pipe uses the composite pipe body of embedded elastic metal core, outer coating flexible silica gel layer, two ends connect ear clip, utilize self elastic restoring force to provide sustained clamping force, ensure that wearing is stable and comfortable.

The application provides a lifting device and an air conditioning unit, the lifting device is used for driving a fan assembly of the air conditioning unit to perform lifting movement, and the lifting device comprises a fixed plate used for bearing the fan assembly; a lifting assembly rotatably connected with the fixed plate, a bottom end of the lifting assembly used for contacting a supporting base surface; and a transmission assembly connected with the lifting assembly to drive the lifting assembly to rotate relative to the fixed plate, so that the bottom end of the lifting assembly moves relative to the supporting base surface, and the fixed plate is lifted relative to the supporting base surface to drive the fan assembly to perform lifting movement. The fan assembly is lifted by the lifting device and supported after descending, so that the problems of difficult lifting and difficult bottom supporting of the fan assembly in the air conditioning unit in the prior art are solved.

The invention relates to the technical field of furniture, in particular to a linkage waist-supporting chair frame, which comprises a seat frame, a waist-supporting seat, a waist-supporting seat, a waist-supporting seat and a waist-supporting seat, the back frame is connected with the linkage seat; the sliding backrest is mounted on the back frame in a manner of sliding up and down; the sliding hinge mechanism is arranged between the linkage seat and the sliding backrest and is used for driving the sliding backrest to slide up and down when the back frame leans forwards and backwards; the upper end of the waist rest is rotatably connected with the sliding backrest; one end of the waist supporting mechanism is rotatably connected with the back frame, and the other end of the waist supporting mechanism is rotatably connected with the waist rest. When the back frame leans backwards, the waist jacking mechanism rotates relative to the back frame and the waist rest, so that the waist rest is jacked upwards relative to the sliding backrest. Through mechanical linkage formed by the linkage seat, the sliding hinge mechanism, the sliding backrest and the waist jacking mechanism, when the chair back leans backwards, the waist rest can automatically generate jacking action matched with the motion trail of the waist of a human body and is always attached to the waist, and the problem that the waist support is weakened or disappears when the chair back leans backwards is effectively solved; and the comfort and healthy support in a relaxed state are improved.

The application provides a method and device for determining a choke system of a shale gas horizontal well in a flow-back stage. The method comprises the following steps: obtaining artificial fracture parameters, geological parameters and fracturing engineering parameters of a target shale gas horizontal well, and establishing a flow-back model based on the parameters. Then, a maximum choke size of the target shale gas horizontal well is determined according to production pressure differentials corresponding to different choke sizes. Furthermore, a choke replacement mode optimization model, an open-well choke size optimization model and a per-stage choke increase / decrease amplitude optimization model are established based on the production pressure differentials, a stress sensitivity curve, the flow-back model and production conditions of the target shale gas horizontal well. The choke system of the target shale gas horizontal well can be determined according to the models, and the choke system comprises a choke replacement mode, an open-well choke size and a per-stage choke increase / decrease amplitude. The method solves the problem that the determination of the choke system of the shale gas horizontal well in the flow-back stage lacks theoretical support and technical guidance.

The application provides a lifting device and an air conditioning unit, the lifting device is used for lifting operation of a fan assembly, and the lifting device comprises a lifting frame, a lifting assembly and a supporting assembly, the lifting frame has a moving opening for the fan assembly to pass through; the lifting assembly is connected with the fan assembly to lift the fan assembly on the lifting frame, the lifting assembly is movably arranged relative to the fan assembly to be movably arranged in a vertical direction relative to a supporting base surface through relative movement between the fan assembly and the lifting assembly; the supporting assembly is used for being installed at a bottom end of the fan assembly to support the fan assembly through contact with the supporting base surface when the fan assembly passes through the moving opening and drops to a predetermined position, so that the problem of difficult lifting and difficult bottom support of the fan assembly in the air conditioning unit in the prior art is solved.

The utility model discloses a kind of for storing roll-shaped material's shelf support beam structure, realize the weight of shelf can be reduced, shelf strength can be guaranteed again;Setting up bending shelf plate (4) with cross section M between shelf front crossbeam (2) and shelf rear crossbeam (3), the included angle (5) between the top two V-shaped bending top plate of bending shelf plate (4) is 164 degrees, L-shaped foot plate (6) is set up in the bottom of the two sides of bending shelf plate (4), connecting bolt (7) is set up between L-shaped foot plate (6) and shelf front crossbeam (2);Rubber antiskid board strip (8) is respectively set up on the top two V-shaped bending top plate of bending shelf plate (4), and rubber antiskid board strip (8) is fixedly connected on V-shaped bending top plate by screw (9);Reinforcing rib plate (11) is set up in the M-shaped inner cavity of bending shelf plate (4) at intervals;The problem of roll-shaped material storage difficulty and supporting architecture is heavy is solved.

The present application relates to a kind of typhoon can be released with platform's water isolation sleeve support system and its use method, wherein, typhoon can be released with platform's water isolation sleeve support system for supporting the water isolation sleeve of subsea well, subsea well is configured with deepwater self-elevating production platform around, the deepwater self-elevating production platform includes hull, the water isolation sleeve support system includes moving mechanism, bottom foundation and water isolation sleeve support frame, moving mechanism is set on the deck of hull;Bottom foundation is set to the sea bottom near deepwater self-elevating production platform;The bottom end of water isolation sleeve support frame is detachably connected on the bottom foundation, and the top end of water isolation sleeve support frame is connected with hull by moving mechanism.When typhoon is encountered, the moving mechanism releases water isolation sleeve support frame, realizes that water isolation sleeve support frame is quickly released from deepwater self-elevating production platform when typhoon is encountered;When deepwater self-elevating production platform moves or reinstallation, the moving mechanism will water isolation sleeve support frame be lifted to the deck of hull, realize that deepwater self-elevating production platform is moved together with water isolation sleeve support frame and reinstallation.