602 results about "Stable fixation" patented technology

The invention relates to the technical field of compression hemostasis in interventional operations, and particularly discloses an adjustable compression hemostasis fixing band for interventional operations, which comprises a compression hemostasis component and a fixing component, the compression hemostasis component comprises a mounting bag and a sandbag, an interlayer bag is arranged in the mounting bag, and first magic tapes are arranged on the upper and lower inner walls of openings at two ends of the mounting bag; the fixing assembly comprises a first elastic compression tourniquet, a second elastic compression tourniquet and elastic viscous fixing bands, the mounting bag is fixedly connected to the first elastic compression tourniquet, and the elastic viscous fixing bands are connected to openings in the two ends of the mounting bag; the first elastic compression tourniquet, the second elastic compression tourniquet and the elastic viscous fixing band are fixed to the thigh of the affected side of a patient and the paracentesis incision in a reinforced mode, and through stable fixation at multiple positions, the device is not prone to sliding and has no harm to the skin, and the comfort level of the patient is improved.

The utility model relates to the technical field of chuck jaws, and discloses a machine tool chuck jaw which comprises a fixed base, a handle is rotationally connected in the fixed base, a worm is fixedly connected to the outer wall of the handle, a worm gear is rotationally connected in the fixed base, the worm is meshed with the worm gear, and the worm gear is fixedly connected with the outer wall of the handle. An annular groove is formed in the top of the worm gear, a limiting assembly is arranged in the worm gear and used for stabilizing rotation of the worm gear, and a sliding plate is slidably connected to the top of the worm gear. According to the utility model, the problems that the centering and clamping stability of a workpiece is influenced due to the fact that the positions of the clamping jaws are difficult to be completely synchronized, and the friction force is insufficient and the clamping is unstable due to small contact area are solved, and stable fixation can be realized to ensure that the workpiece does not move or deviate from a preset position in the machining process; and meanwhile, the design of the contact surface is optimized, and the friction force and the clamping force can be remarkably improved.

The invention relates to the technical field of medical instruments, in particular to an artificial ligament braided fabric. The artificial ligament braided fabric comprises a braided part, the braided part is formed by interweaving warp yarns and weft yarns, a mesh staggered structure is formed, the warp yarns extend in the width direction of the braided part, and the weft yarns extend in the length direction of the braided part. Compared with the prior art, by optimizing the weaving structure and the size design, the complex movement requirements of various joint parts such as the ankle joint and the acromioclavicular joint can be met, the stable fixing effect is provided, and the risks of loosening and shifting of the graft are reduced.

The utility model provides a self-discharging type double-helix biliary stent, and belongs to the technical field of medical drainage catheters. Comprising a stent body, and the stent body comprises a connecting pipe, a first spiral pipe and a second spiral pipe; the connecting pipe is used for fixedly connecting the first spiral pipe and the second spiral pipe; the first spiral tube is mounted on one side of the connecting tube and used for draining bile; the second spiral pipe is installed on the side, away from the first spiral pipe, of the connecting pipe. Compared with an existing double-pigtail stent or a self-discharging type biliary tract spiral stent, the spiral structure of the two sets of spiral tubes can better adapt to the physiological form of the biliary tract, stable fixation is formed, the risk that an original stent with one end being of a vertical structure possibly pierces the intestinal wall is avoided, and the intestinal tract can be more stably fixed. Due to the arrangement of the self-discharging double-helix biliary stent, convenience is provided for taking out the stent subsequently.

The invention discloses a cable harness detection device for a new energy automobile, and belongs to the technical field of harness detection. The device is composed of a fixing mechanism, a tensioning mechanism, a bending mechanism, a torsion mechanism, a detection module and a control system. Through a pneumatic self-adaptive clamping structure and an elastic tensioning mechanism, stable fixation and constant tensioning of the wire harness are realized; the servo driving push rod and the rotatable mounting plate can simulate bending in multiple directions; the three-jaw chuck type torsion mechanism realizes low-speed and high-torque reciprocating torsion; the detection module integrates electrical performance detection and infrared temperature sensing, and monitors the conduction state, resistance, insulation strength and temperature rise in real time; the control system realizes automatic control of bending, torsion and composite loading based on a PLC, and can be connected with an upper computer or a cloud platform to realize data uploading and life curve analysis. The device can truly simulate the complex working condition of the vehicle, and improves the detection precision and reliability.

The invention discloses a dual-purpose mounting structure of a pole-mounted circuit breaker, relates to the technical field of power equipment, and aims to solve the technical problems that the matching precision of the mounting structure and a circuit breaker body is influenced by temperature fluctuation, and the service life is influenced. Through collaborative design of the two-way shape memory alloy deformation sleeve, the self-adaptive bolt, the spiral section and the waterproof heating structure, efficient dual-purpose adaptation to the cold winter environment and the high-temperature summer environment is achieved, at the high temperature summer, the deformation sleeve is heated to expand to push the positioning ring to be matched with the self-adaptive bolt expansion sleeve to stretch elastically, rigid extrusion of metal parts is avoided, and the service life of the metal parts is prolonged. Meanwhile, the spiral section is driven to secondarily press the rubber layer, the wind resistance and skid resistance are improved, and stable fixation under high-temperature strong wind is guaranteed; in extremely cold winter, the deformation sleeve is subjected to phase change shrinkage to pull the positioning ring, the self-adaptive bolt fills the cold shrinkage gap, the spiral drainage track dredges dew, the metal net is heated to prevent icing, and the pressing force of the spiral joint is matched to avoid the risk of gap expansion and slipping.

The invention relates to the technical field of intelligent manufacturing saw cutting equipment, in particular to an aluminum profile long edge full-automatic cutting device which comprises an intelligent manufacturing table, a saw cutting mechanism installed on one side of the top end of the intelligent manufacturing table and an auxiliary frame fixed to one side of the bottom end of the intelligent manufacturing table. Two first rectangular blocks are symmetrically arranged at the top end, close to one side of the sawing mechanism, of the intelligent manufacturing table, two second rectangular blocks are symmetrically arranged at the top end, close to the other side of the sawing mechanism, of the intelligent manufacturing table, and placing grooves are formed between the two first rectangular blocks and the two second rectangular blocks. Through the double-rectangular-block clamping and positioning system, the long edge of the T-shaped aluminum profile is embedded into the containing grooves of the two first rectangular blocks and the two second rectangular blocks, all-directional stable fixing is achieved in cooperation with the clamping driving assembly, by means of the back-off type installation design, direct extrusion on the long edge is avoided when the sawing mechanism descends for operation, the risk of bending deformation of the long edge is eliminated, and the working efficiency is improved. And it is ensured that the cut profile meets the assembly requirement.

The utility model discloses a cannon connector female head structure, which comprises a plug body, a main body and a casing, one end of the main body is connected with the plug body, the other end of the main body is provided with external threads, the inner wall of the casing is provided with internal threads, the main body is connected with the casing through the threads, and the casing is provided with external threads. One end of the main body away from the plug body is provided with a wire fixing device. The linker female head is provided with the fixing device, so that a user can repair the linker female head by himself / herself, and when a lead is broken, the shell of the connector female head is detached to expose an internal wiring area. And then accurately inserting the wire core of the broken wire into a preset wire hole. And then, proper pressure is applied to the wire core through rotation operation by utilizing the configured wire pressing bolt, so that the stable fixation of the wire is realized.

The utility model relates to the technical field of automobile manufacturing, in particular to a device for controlling camber assembly errors of automobile front wheels, which comprises a brake attaching plate (1). One end of the brake attaching plate (1) is connected with a brake (2), and the other end of the brake attaching plate (1) is connected with a rotating arm (3); a shock absorber limiting plate assembly is arranged on the rotating arm (3); a shock absorber (4) is connected in the shock absorber limiting plate assembly; the brake attaching plate can achieve stable fixing of the brake. The shock absorber limiting plate assembly can achieve fixation of the shock absorber. The mounting positions of the rotating arm and the brake attaching plate can be adjusted; according to the device, the assembly position between the shock absorber and the brake can be adjusted and fixed, so that the assembly precision of front wheel camber can be ensured; and meanwhile, the device is simple in structure and use, and the production cost is greatly reduced.

The utility model relates to the technical field of cup body structures, and discloses an aluminum cup mounting structure, which comprises an aluminum cup main body, a working part and a mounting part, the aluminum cup main body is arranged on the working part, and the aluminum cup main body and the working part are connected through the mounting part; the mounting part comprises a fixing ring, the fixing ring is arranged on the peripheral side of the aluminum cup body in a sleeving mode, and the fixing ring is connected with the working part. According to the utility model, the fixing ring is used instead of welding or glue bonding, so that the mounting structure prevents the oxidation layer or other protective coatings on the surface of the aluminum cup from being damaged by high-temperature welding or glue permeation, thereby keeping the gloss and protective performance of the surface of the aluminum cup. The mechanical connection mode of the fixing ring can provide a more stable fixing effect, and the problem that bonding is not firm or disengagement occurs after long-term use is solved.

The invention discloses a fixing device for osteoporotic fracture, which comprises a tightening mechanism and a mounting mechanism, the tightening mechanism comprises a fixing plate and a fixing cylinder, the fixing cylinder is welded on the left side of the fixing plate, and a plurality of partition plates are uniformly welded in the fixing cylinder. According to the fixing device for the osteoporotic fracture, stable fixation is provided for the osteoporotic fracture part through the tightening mechanism, the loosening problem caused by infirm fixation is avoided, fracture healing is facilitated, the ratchet wheel is installed on the outer ring of the rotating shaft to be matched with the pawl, and the fixing stability is further guaranteed; the fixing effect is prevented from being affected by loosening of the lacing rope caused by reverse rotation of the rotating shaft, the fracture position of the leg of a patient can be conveniently installed and fixed through the installation mechanism when the leg of the patient is fractured and the leg is inconvenient to lift, operation of medical staff is facilitated, and through cooperative use of a ratchet wheel and a pawl, the fixing stability is guaranteed, and meanwhile the fixing effect is improved. And the fixing device can be conveniently and quickly loosened in emergency, so that the safety of the patient is guaranteed.

The wrist stabilizer for rehabilitation comprises a wearing sleeve, and the wearing sleeve is sleeved backwards from the front portion of a palm to the rear portion of a wrist; the front end of the wearing sleeve is provided with finger holes corresponding to five fingers; the front end of the wearing sleeve is sleeved to the root of a finger, so that most of the finger is exposed; a plurality of guide blocks are respectively arranged on one side, corresponding to the hand back, of the wearing sleeve along the palm back, the wrist and the back of the wrist; a posture fixing chain sequentially penetrates through the guide blocks; the posture fixing chain is sleeved with an elastic outer sleeve. The posture fixing chain comprises a plurality of chain block single bodies which are sequentially opposite end to end and a pull wire which slides and penetrates through the centers of the chain block single bodies in the axial direction at the same time. Through the simple and light structural design, flexible adjustment and stable fixation of the wrist posture are successfully achieved, and it is ensured that a user can obtain the best supporting and protecting effect in the rehabilitation and daily use process.

The utility model provides a carbon fiber pipeline capable of being quickly installed, which relates to the technical field of carbon fiber pipeline equipment, and comprises pipelines, connecting discs are arranged on pipeline bodies, and two adjacent pipelines are connected through a middle pipe; the two ends of the middle pipe are connected with the two pipelines in an inserted mode respectively and connected with connecting discs of the pipelines through fixing discs. Comprising a support, the support comprises a chassis, a fixing frame is fixedly arranged on the chassis and movably connected with a middle pipe, and the chassis is connected with a pipeline through a clamp. The pipeline fixing device has the advantages of being reasonable in design, simple in structure, safe and reliable, achieving rapid installation and stable fixing of the pipeline, and reducing the risk of pipeline damage.

The invention relates to the technical field of gear grinding, and discloses a gear inner ring machining and grinding device which comprises a rotating assembly, a lifting assembly, an inner clamping assembly, a conveying assembly, a guiding assembly, a conductive assembly, an outer clamping assembly, a rotating lead screw, a rotating gear and a grinding assembly. The gear inner ring is accurately positioned through the inner clamping assembly, it is ensured that the gear and the rotating assembly are strictly coaxial, the hole diameter is prevented from being out of tolerance during grinding, the size precision and the surface flatness of the inner ring are ensured, the outer clamping assembly is designed in a self-adaptive clamping mode and can be matched with the gear with the irregular outer surface, and flexible attaching and rigid supporting are combined, so that the machining precision of the gear is improved. Even if not all clamping surfaces are in contact, the axis can be kept stable, and stable fixation can be achieved without complex adjustment. And the inner clamping assembly can return to the telescopic positioning cavity after positioning is completed, interference to grinding operation is avoided, and the grinding effect is further guaranteed in cooperation with precise feeding of the grinding assembly.

The utility model discloses a gravity type wheel catch device for a hydraulic turning plate car unloader, relates to the technical field of gravity type wheel catch devices, solves the technical problems of failure rate and low efficiency in the existing technical scheme, and comprises a main base, a main turning plate and a hydraulic cylinder, the hydraulic cylinder is rotationally installed in the main base, the telescopic end of the hydraulic cylinder is rotationally connected to the lower wall face of the main turning plate, a rotating shaft is rotationally installed on the main turning plate, and a wheel blocking block is fixedly installed on the rotating shaft. The fault occurrence probability is obviously reduced; the gravity type wheel blocking device ensures that the vehicle is stably fixed in the loading and unloading process, and time waste caused by position adjustment is avoided; and by arranging the gravity block, the stability of the wheel blocking block is improved, potential safety hazards in the operation process are greatly reduced, and the safety of personnel and equipment is guaranteed.

The utility model discloses a cutting device for diamond processing, which comprises a workbench, the top of the workbench is fixedly provided with a fixing frame, one side of the top of the fixing frame is slidably provided with a cutting assembly for cutting diamond, the inside of the fixing frame is symmetrically and slidably provided with first clamping plates, and the first clamping plates are symmetrically and slidably provided with second clamping plates. The two first clamping plates are driven to move oppositely through operation of a motor, meanwhile, the two second clamping plates are driven to be close to each other through connection of a connecting rod to a mounting block so that the first clamping plates and the second clamping plates can move synchronously, and diamonds can be clamped and fixed, and meanwhile in the moving process of the second clamping plates, the diamonds can be clamped and fixed. The rubber soft body of the inner ring of the second clamping plate and the diamonds extrude to drive the second clamping plate to slide along the interior of the sliding hole, the second clamping plate clamps diamond workpieces of different sizes, meanwhile, the diamonds of different shapes are fixed through extrusion of the rubber soft body and the diamonds, and it is guaranteed that the diamonds of different shapes are stably fixed.

The utility model discloses a combined type pet belt buckle convenient to adjust. The combined type pet belt buckle comprises a bandage assembly, an inserting buckle assembly and a rapid tightness adjusting assembly. And the other end of the quick tightness adjusting assembly is connected in series with the middle section of the bandage assembly. The quick tightness adjusting assembly is composed of a fastener body, a pressing plate rotating shaft, a pressing plate operating handle, a bandage pressing block, a bandage pressing strip and a bandage winding beam, and quick adjusting and fixing of the bandage assembly are achieved by turning up and pressing down the pressing plate operating handle. The buckle assembly is used for achieving quick connection of the pet belt buckle. The bandage assembly is composed of a fixed-section bandage, an adjusting-section bandage and a wearing product, and the adjusting-section bandage bypasses a gap between the pressing strip anti-skid teeth and the bandage pressing block and a gap between the bandage pressing strip and the bandage winding beam and then is overlapped, so that length adjustment is achieved. The utility model has the advantages of convenient adjustment, fast connection, stable fixation and the like, is suitable for various pet wearing products, and provides more convenient and reliable pet supply choices for pet owners.

A square hole shaft comprises a large column in the middle and small columns arranged at the two ends of the large column in the length direction, and at least part of the end, close to the small columns, of the large column in the circumferential direction is contracted inwards to form a step structure; the utility model provides a handle lock rotating structure with a bearing and a pull rod and a handle lock. A first shifting piece and a second shifting piece are respectively sleeved at a step structure of a square hole shaft to form stable fixation; the two rotary bearings are arranged on the two small columns respectively in a sleeving mode, in the rotating process of the square hole shaft, the square hole shaft drives the inner rotating part to rotate, the outer fixing parts of the rotary bearings are fixed respectively and rotate, the rotary bearings support the square hole shaft, meanwhile, resistance in the rotating process is reduced, and operation resistance and noise are controlled. The spring provides resilience force for realizing the latch bolt, and the guide column provides sliding guide of the latch bolt and position limitation of the spring.

The utility model discloses an eccentric reducing elbow, and relates to the technical field of pipeline fittings. The eccentric reducing elbow comprises the eccentric reducing elbow body and the adjusting mechanism, the adjusting mechanism comprises the shell, the limiting groove is formed in the outer surface of the shell, and the adjusting mechanism is arranged, so that the angle and the position of the eccentric reducing elbow can be adjusted according to actual requirements in the installation and use process; according to the adjustability, the application range of the eccentric reducing elbow is widened, the eccentric reducing elbow can be installed in a complex pipeline system more flexibly and conveniently, the product practicability is improved, the eccentric pipe body is stably fixed after being adjusted through the sleeve block, the clamping block and the fixing bolt, the fixing mode is simple and reliable, and the practicability is high. And the eccentric pipe body is effectively prevented from loosening or shifting in the use process, so that the connection stability and the service life of the eccentric reducing elbow are ensured.

The invention discloses a power taking and replacing device applied to a robot camera, and relates to the technical field of power transmission, and the power taking and replacing device comprises a protection unit which comprises a protection cylinder, a plurality of groups of open grooves, a plurality of groups of driven parts and a protection cover; the replacing unit comprises a fixed cylinder, a cover cylinder, a movable cylinder and a driving part. The mechanical arm has the beneficial effects that the camera can be quickly mounted on the mechanical arm, stably fixed, effectively protected against impact and conveniently maintained, and the lens can be quickly replaced. And through forward rotation locking of the cover cylinder and fixation of the camera shooting integrated board by the baffle plate, installation rapidness and stability are ensured. And meanwhile, the matching of the convex block and the spring column can quickly respond when being collided, so that the lens is protected and secondary damage is reduced. In addition, the design of the guide column and the spring wedge block allows quick unlocking, and the inspection and maintenance process is simplified.

This utility model relates to the field of target material packaging technology and discloses a special flight case for rotating targets. The case includes a case body, a hinge fixedly connected to the outside of the case body, a cover plate fixedly connected to the outside of the hinge, and the lower surface of the cover plate disposed on the upper surface of the case body. An upper shell is fixedly connected to the inside of the case body. A sliding groove is formed inside the upper shell, and a pressing plate is slidably connected inside the sliding groove. A spring is disposed on the lower surface of a retaining plate, a sponge block is fixedly connected to the outside of the pressing plate, and a rebound assembly is disposed outside the pressing plate. In this utility model, the sliding groove inside the upper shell guides the pressing plate to slide, and the retaining plate and spring limit the target material, thereby achieving stable fixation and safe protection of the target material, meeting the high-precision protection requirements of rotating targets.

The invention relates to a puncture outfit with a positioning function, and relates to the technical field of medical instruments, the puncture outfit comprises a puncture cannula, the upper end of the puncture cannula is detachably provided with a sealing cap through threads, the upper side of the sealing cap is fixedly provided with a first valve membrane, the lower side of the sealing cap is fixedly provided with a second valve membrane, and one side of the sealing cap is fixedly provided with a connecting pipe; an air hole is formed in the middle of the connecting pipe, a tail handle is arranged on the inner wall of the sealing cap, a puncture rod is fixed to the middle of the tail handle, a puncture head is fixed to the other end of the puncture rod, and a plurality of scale grooves are formed in the lower side of the puncture cannula. According to the puncture outfit, rotation operation is conducted by manually rotating the handle, on one hand, the effect of precisely positioning the puncture depth is achieved, the safety of the puncture outfit in the clinical use process is remarkably improved, on the other hand, the stable fixing effect is achieved, the stability of the puncture outfit in the use process is remarkably improved, and on the other hand, the wound sealing effect is achieved; and the use protection performance of the puncture outfit is obviously improved.

The utility model provides a filter bag component convenient to replace, which belongs to the technical field of air purification and comprises a positioning ring, a connecting rope is fixedly mounted on one side of the positioning ring, and one end of the connecting rope is fixedly connected with a connecting pipeline. The positioning mechanism is evenly distributed on the periphery of the top through the four stand columns, the rotating shaft is installed at the top ends of the stand columns, the positioning rod is fixedly connected with the top of the rotating shaft, the soft rubber rope is arranged at one end of the positioning rod, and therefore a stable supporting structure is formed. According to the technical scheme, the front side, the rear side and the right side of the positioning ring are respectively arranged, and an accurate limiting function is provided through fixed connection of the balls and the fastening bolts and sleeving of the threaded ring sleeve, so that stable positioning of the filter bag body is effectively ensured, and the assembly cost is reduced through simplified operation steps and reduced assembly number. The convenience and the efficiency of replacing the filter bag body are obviously improved.

The invention discloses a detection device for a metal corrugated pipe, and relates to the technical field of corrugated pipe detection, the device comprises a base, the left side and the right side of the upper end of the base are respectively and symmetrically fixed with a fixed plate I and a fixed plate II, and the upper ends of the fixed plate I and the fixed plate II are provided with surface detection structures for detecting the outer surface of a pipe fitting. According to the internal supporting structure, through a linkage mechanism of the internal supporting lead screw and the gear, stable fixation of the interior of the pipe fitting and synchronous rotation during detection are achieved; meanwhile, the surface detection structure utilizes a reciprocating screw rod to drive a detection piece to do linear reciprocating motion, and the outer surface of the pipe fitting is comprehensively scanned; therefore, the stability of the pipe fitting in the detection process is ensured, errors caused by shaking or displacement are avoided, and the detection precision is remarkably improved; omnibearing detection capability ensures that tiny defects on the surface of the pipe fitting are accurately found, and detection quality and reliability are further improved.

The utility model provides a battery shell processing fixing tooling, including bottom plate and adjusting plate, the one side of bottom plate top is provided with the adjusting mechanism, and the one side of bottom plate top far away from the adjusting mechanism is provided with the spacing mechanism, the utility model discloses through the use of fixing mechanism, realized battery shell high-efficiency stable fixation, when in use, the fixing mechanism is not influenced by the fixing mechanism. A worker places a battery shell on the surface of an adjusting plate, then electric push rods on the two sides are started, the electric push rods drive fixing plates to move towards the edges of the two sides of the shell, and when the fixing plates make contact with the edges of the shell, a plurality of fixing blocks located on one side of the fixing plates can extrude springs to different degrees according to the shape of the edges of the shell, so that the shell is fixed more firmly; the fixing device is simple and convenient to operate, adapts to battery shells of different shapes and sizes through the elastic effect of the spring, and ensures the stability and reliability in the fixing process.

The utility model relates to an automatic lifting device, and belongs to the technical field of vehicle body operation equipment. Comprising a frame, a steering mechanism, wheels and a brake mechanism, lifting mechanisms are arranged at the bottom of the frame, the lifting mechanisms are located at the two ends of the frame, the steering mechanism is located at the top of the frame, the brake mechanism comprises a hand brake and a foot brake, the foot brake is located on the side, close to the steering mechanism, of the frame, and the hand brake is located on the frame. The utility model provides an automatic lifting and lifting device, which realizes automatic lifting, accurate adjustment and stable fixation of a body in white through the synergistic effect of a lifting mechanism, a steering mechanism, wheels and a brake mechanism.

The utility model relates to vertical machining center technical field, and public a kind of vertical machining center of foldable tool magazine structure, it include: fixed subassembly, the fixed subassembly includes machining center body, movable door, fixed block, fixed frame, plug-in rod and compression spring, the rear side of movable door is through pivot swing connection in the front side of machining center body, the rear side of fixed block and fixed frame is all fixedly connected in the front side of movable door, the left side of plug-in rod extends to the inside of fixed block and is penetrated through fixed frame, the surface of plug-in rod is sleeved in compression spring, the left side of compression spring is fixedly connected in the right side of plug-in rod, the right side of compression spring is fixedly connected in the inside of fixed frame, through fixed subassembly, when closing fixed movable door, the rebound force of compression spring drives plug-in rod to move left, makes the insertion of plug-in rod in the inside of fixed block, the stable fixation of movable door is prevented loose, through the slot, when plug-in rod is inserted and fixed, accurately inserted into the inside of fixed block.

The utility model provides a controllable micro-motion elastic internal fixation device with a bidirectional locking pressing plate structure, and belongs to the technical field of orthopedic medical instruments. Comprising a plurality of bridging rods; and the two end blocks are arranged at the two ends of the bridging rod. A stable frame structure is constructed through the combination of the bridging rod, the end block and the fixing screw, a fracture part is effectively connected and fixed in the axial direction, then a bidirectional locking mechanism is formed through the upper pressing plate, the lower pressing plate, the adjusting lead screw and the locknut, and the fracture part is locked by screwing the locknut. The distance and pressure between the pressing plates can be accurately adjusted and locked, dynamic force generated by factors such as muscle contraction and limb movement can be effectively resisted in the long-term use process, the pressing plates are prevented from loosening or displacing, and it is ensured that the fixing device always keeps the stable fixing effect; and the problems of poor fracture healing or malformation healing and the like caused by fixation failure are avoided.

The utility model provides a conveying belt frame fixing block machining fixing tool and belongs to the technical field of machining. Comprising a workbench, a fixing assembly and a machining assembly, wherein the workbench is provided with an inner cavity; the fixing assembly comprises a gear rotationally connected with the inner cavity. The connecting block is pushed to move through the air cylinder, then the toothed plate is driven to move transversely, the gear is driven to rotate through movement of the toothed plate, the toothed plate on the other side of the gear is driven to move oppositely while the gear rotates, and finally the two clamping plates are driven to move oppositely through opposite movement of the two toothed plates. At the moment, the fixing block is placed between the two clamping plates, the two clamping plates move towards the center position to fix the fixing block, the fixing firmness and stability of the fixing block can be improved, meanwhile, the fixing blocks of different sizes can be stably fixed, and the application range of the device is widened.

The guiding tube sheath comprises a multi-cavity tube and a handle, the multi-cavity tube comprises an outer tube and a plurality of inner tubes parallelly arranged in the outer tube in a penetrating mode, the tube wall of the outer tube is provided with a first positioning structure, the handle is provided with an insertion channel used for allowing the multi-cavity tube to be inserted in, and a second positioning structure is arranged in the insertion channel; the second positioning structure and the first positioning structure are connected in a matched mode in the radial direction of the multi-cavity tube so as to fix the handle and the multi-cavity tube. Through the cooperation of the first positioning structure and the second positioning structure, accurate positioning and stable fixing between the handle and the multi-cavity tube can be achieved, and the situation that the clinical operation of a guide tube sheath or an endoscope is affected due to the fact that the multi-cavity tube moves or rotates relative to the handle can be prevented; the guide tube sheath can be used for guiding the multi-cavity tube and providing support for improving the structural sealing performance of the multi-cavity tube and the structural sealing performance between the multi-cavity tube and the handle, so that the risk that germs on an endoscope are transmitted to the guide tube sheath is effectively reduced when the guide tube sheath is matched with the endoscope by enhancing the structural stability and sealing performance of the guide tube sheath.