12results about How to "Avoid tension" patented technology

This invention relates to the technical field of emulsion explosive packaging, and more particularly to a processing device for emulsion explosives. A feeding pipe is located in the middle of the machine body, connecting to an external feeding device. A mounting plate is fixedly connected to the top of the machine body, and a cylindrical block is located at the bottom of the mounting plate. The lower end of the feeding pipe passes through the cylindrical block. Symmetrical sliding blocks are provided on the mounting plate, and clamping arc blocks are slidably connected to the sliding blocks. A bidirectional threaded rod is rotatably connected to the mounting plate, and the bidirectional threaded rod is threadedly connected to the sliding blocks. A dual-axis motor is mounted on the mounting plate, and the dual-axis motor is connected to the bidirectional threaded rod. This solution effectively solves the problem of powder splashing and scattering during existing powder bagging processes, ensuring the health of operators and meeting industrial production safety and environmental protection requirements. The dual-axis motor and bidirectional threaded rod drive the clamping arc blocks to clamp the pre-made bag opening, and in conjunction with a piston rod and air cylinder, inflates the airbag block, sealing the gap between the bag opening and the cylindrical block.

The application discloses a method, device and medium for managing a candidate set and an operation set in a coordinated multi-point operation. The method comprises: an access point saving candidate set information and a coordinated operation state of the access point, determining an operation set member according to the saved candidate set information if the coordinated operation state of the access point is not participating in performing the coordinated multi-point operation, setting and saving operation set information, and setting the coordinated operation state of the access point to participating in performing the coordinated multi-point operation; and setting the coordinated operation state of the access point to not participating in performing the coordinated multi-point operation after the coordinated multi-point operation ends. Through implementation of the application, the control and management of the access point do not participate in too many coordinated multi-point operations, thereby on the one hand, the quality of site service is guaranteed, and on the other hand, the problem that resource occupation of the coordinated multi-point operation causes site resource shortage in the access point is avoided, so that wireless resources are more effectively used.

The invention relates to a motorized chain saw and a method for tensioning a saw chain of a motorized chain saw, in particular a motorized chain saw with a housing (2) and a drive motor (3). A guide rail (5) is held at the housing (2) via a releasable fastening device (8) and can be moved relative to the housing (2) in the direction of the longitudinal axis (6) of the guide rail via a tensioning device (10) when the fastening device (8) is released. The motorized chain saw (1) comprises a chain lifting device (11) which is constructed separately from the tensioning device (10). The chain lifting device (11) is configured for deflecting the saw chain (7) in a deflection position (40) of the chain lifting device (11) when the tensioning device (10) tensions the saw chain (7) and relaxing the saw chain (7) in an operating position (41) of the chain lifting device (11) when the guide rail (5) is fastened.

The invention discloses a sectional type middle section prestress tensioning opposite-pulling prestress anchor rod and a construction method. The sectional type middle section prestress tensioning opposite-pulling prestress anchor rod comprises an air gun, an air supply system, a grouting system, a prestress tensioning system, an anchor rod connecting pipe sleeve and a sectional type anchor rod body. A construction method of a sectional type middle section prestress tension anchor rod of a small-clear-distance tunnel comprises a drilling system, a grouting system, a prestress tension system and a monitoring system, and mainly comprises the following steps that (1) construction of an advance hole is confirmed; (2) hole site paying-off is carried out; (3) drilling operation; (4) the anchor rods are assembled in a driven mode; (5) performing grouting operation; (6) pre-stress tensioning construction is conducted; (7) checking after tensioning; and (8) the tensioning jack is dismantled, and the exposed end of the anchor rod is coated with guniting. According to the method, sufficient prestress tensioning of the anchor rod can be guaranteed, the problem that tensioning cannot be conducted after one end is fixed in two-end tensioning in a traditional method is solved, the stability of tunnel construction of a small clear distance section is effectively improved, the stability of a middle rock pillar is improved, the tunnel construction risk is reduced, meanwhile, the tunnel construction progress can be guaranteed, and the construction efficiency is improved. And the engineering cost of tunnel engineering construction is greatly reduced.

This invention discloses a rapid concrete cutting device for road and bridge expansion joints, relating to the field of concrete cutting technology. The technical solution includes a base plate, two housings, a rotating shaft, a vertical plate, a position adjustment component, and a cutting component. The two housings are fixedly connected to the top of the base plate, the rotating shaft is rotatably connected to the two housings, the vertical plate is fixedly connected to the top of the base plate, the position adjustment component is connected between the vertical plate and the rotating shaft, and the cutting component is connected to the position adjustment component. The beneficial effects of this invention are: by setting up a limiting component including a limiting slider and a locking element, when the cutting component encounters a hard material and generates a reaction force causing a reversal tendency, the trigger element contacts the locked limiting slider, restricting the upward movement of the limiting slider, thereby rigidly blocking the transmission of the reversing torque and preventing the reaction force from directly acting on the hydraulic system of the position adjustment component, effectively preventing damage to the driving component from rigid impact.

The utility model discloses an intraoperative adjustable support for interventional operation, which comprises a support frame comprising at least two horizontal support rods arranged in an umbrella shape, a connecting rod comprising a head rod and a tail rod connected in an extendable manner, the support frame being connected to the top end of the head rod and being rotatable about the connecting rod, and a base provided on the bottom end of the tail rod, the base being detachably fixed to the bed plate of a treatment bed. The intraoperative adjustable support for interventional operation has the advantages of simple structure, reasonable design, quick installation, small folding space occupation and convenient storage. The support can provide sufficient operation space for the operator, avoid covering the patient's mouth and nose directly with thick sterile cloth, reduce the feeling of suffocation and asphyxia of the patient during breathing, ensure the emotional stability of the patient during the operation, facilitate the observation of the patient's intraoperative changes by the surgeon and the circulating nurse, and greatly improve the operation efficiency and safety.

This utility model relates to the field of wire feeding technology and discloses a high wire feeding device. A mounting bracket is provided on one side of the top of a support. A first channel is located at the end of the mounting bracket away from the support. The first end of a rotating arm is located at the bottom of the first channel, and the second end of the rotating arm is lower than the first end and located away from the first channel. The rotating arm can rotate around the axis of the first channel. When the driven wire passes sequentially through the second end of the rotating arm, the first end of the rotating arm, and the first channel, the rotating arm drives the wire to rotate. This utility model, by having the rotating arm rotate around the first channel, allows the wire to swing under the upward spiral force of the wire, thereby throwing off the wire that has reached a certain height, preventing it from tangling or becoming taut due to tension. Through the mounting bracket and the rotating arm, the wire's entry point into the high wire feeding device is far from the support, thus preventing the wire from colliding with the support during ejection and ascent, and avoiding deviation of the wire's transport path.

This invention provides a lightweight circuit breaker operating mechanism, relating to the field of circuit breaker technology. The lightweight circuit breaker operating mechanism includes a circuit breaker housing, inside which a circuit-breaking mechanism is disposed. The circuit-breaking mechanism includes a rotating shaft rotatably disposed inside the circuit breaker housing, a rotating plate fixedly connected to the outer side of the rotating shaft, a first connecting rod hinged to one side of the rotating plate, and a handle push rod hinged to one side of the first connecting rod. The rotating shaft is fixedly connected inside the circuit breaker housing, the handle push rod is rotatably connected to the rotating shaft, an armature is fixedly disposed on the inner side of the handle push rod, and a permanent magnet is fixedly disposed on the outer side of the circuit breaker housing. A spring is disposed on the outer side of the rotating shaft, with one end of the spring fixedly connected to the rotating shaft. In this invention, while the moving contact gains power and separates from the outer side of the stationary contact, the stationary contact can undergo a small range of displacement. Furthermore, the tension generated when the spring contracts can accelerate the movement of the moving and stationary contacts, thereby improving the circuit breaker's breaking speed.

The invention provides a flexible photovoltaic support control method and system, and belongs to the field of photovoltaic support control, and the photovoltaic support system comprises a control device, a wind measurement device, a self-locking device, a force measurement device, a rope and a flexible photovoltaic support. The control method is applied to the control device and comprises the steps that different wind speed control instructions are generated according to the size relation between the environment wind speed and a wind speed preset threshold value, and the different wind speed control instructions are used for controlling a self-locking device to be in a rope pulling state or a rope loosening state; different cable force control instructions are generated according to the size relation between the cable force of the rope and a cable force preset threshold value, and the different cable force control instructions are used for controlling the self-locking device to be in a rope pulling pause state or a rope loosening pause state. According to the flexible photovoltaic support control method and system provided by the invention, the photovoltaic power generation stability and the photovoltaic power generation efficiency can be improved.

The utility model discloses a hydraulic anchor, include: the body middle part side wall is equipped with radial anchor tooth hole, its inside installation has the anchor tooth, the anchor tooth outside is provided with the centralizer, is installed between the anchor tooth and the centralizer spring piece, the body inner chamber is equipped with the central tube, the body bottom end inner wall is connected with the lower joint of screw thread, the sliding joint of the body top and central tube has the deblocking pipe, the deblocking pipe top is connected with the upper joint of screw thread, the lower joint inside is equipped with the pressurized anchoring liquid channel, and it is one -way channel, and the central tube top is equipped with the pressure -relief deblocking liquid channel, and the pressure -relief deblocking liquid channel maintains the normally closed state, and when lifting the deblocking pipe, the pressure -relief deblocking liquid channel opens, and the body resets after pressure relief. The utility model discloses through setting up pressurized anchoring liquid channel and pressure -relief deblocking liquid channel, and the anchor tooth is anchored through pressurized anchoring liquid channel when hitting hydraulic pressure, and does not deblock after pressure relief, after lifting the pipe column, the pressure -relief deblocking liquid channel opens, and the anchor tooth deblocks, and the body resets after deblocking, realizes the repeated anchoring, deblocking in the pit.

This utility model belongs to the field of clothing technology, specifically relating to a pair of jeans with a 3D hip area. The jeans include a front panel, a back body, and a waistband. A longitudinal tapering line is provided between the back waistband opening and the back crotch line on the outer seam side of the back body. The longitudinal tapering line extends along the edge of the outer seam side of the back body. When the back body is laid flat, the corresponding position of the hip area is raised. The jeans of this utility model form a natural bulge conforming to the curve of the human hip at the corresponding position of the hip area of ​​the back body, thus fitting the curve of the human hip.

The present application relates to the technical fields of dry electrode film preparation, and discloses a dry electrode film roll pressing composite equipment, which comprises a pre-composite non-powered unwinding assembly, a hot pressing roller assembly with a hot pressing passing gap and two separator film unwinding assemblies; the pre-composite non-powered unwinding assembly comprises a current collector unwinding shaft, a pre-composite passing roller and two dry film unwinding shafts arranged in sequence along a second direction, a dry film passing gap is formed between the two dry film unwinding shafts, a tangent line of the outer diameter of the pre-composite passing roller and a midpoint of the dry film passing gap along the second direction are sequentially arranged along a first direction and projectively coincide, and the two separator film unwinding assemblies are sequentially arranged along the second direction. The dry electrode film roll pressing composite equipment avoids the dry film attached to the current collector due to the air flow disturbance or tension fluctuation of the protective separator film, at the same time, avoids the wrinkle of the separator film, effectively reduces the defect rate, and improves the roll pressing composite quality and the stability of the roll pressing composite operation.