394results about How to "Control displacement" patented technology

The utility model relates to the technical field of transformer cushion blocks, and provides a vacuum pouring cushion block for a 110kV dry-type transformer, which comprises a resin cushion block body, a first top surface is arranged at the top of the resin cushion block body; the first top surface is provided with a first platform, a second platform and a first clamping groove; the first clamping groove is located between the first platform and the second platform. A lug boss is arranged at the front end of the resin cushion block body; a second top surface is arranged at the top of the lug boss; the second top surface is lower than the first top surface; a second clamping groove is formed in the second top surface; and umbrella skirts are arranged at the rear end and two side surfaces of the resin cushion block body. According to the resin cushion block, the protruding part is arranged at the front end of the resin cushion block body, the second clamping groove is formed in the top of the protruding part and used for installing the low-voltage insulating cylinder located between the iron core and the low-voltage coil, insulation failure caused by discharge breakdown of the low-voltage coil of the 110 kV dry type transformer to the iron core can be effectively avoided, and market requirements are met.

The invention relates to the field of soft soil area retaining wall design, and discloses a soft soil area roadbed slope self-anchored light soil retaining wall which comprises a first foundation, a second foundation is placed on the first foundation, and a road surface is laid on the second foundation; the two retaining wall bodies are symmetrically arranged and are piled on the two sides of the first foundation and the two sides of the second foundation; the concentration plate is arranged on the retaining wall main body, and one end of the concentration plate extends into the foundation I and the foundation II; the multiple grids are arranged, the corresponding grids are connected with one another, and the grids are arranged in the second foundation and the retaining wall body. Additional reinforcement treatment on the foundation is reduced, meanwhile, through the combined action of various mechanisms, a good meshing effect can be formed, displacement of soil particles is controlled, and the overall strength and stability of the roadbed and retaining wall structure are improved; the mutual traction effect of the roadbed and the retaining wall is increased, and the anti-overturning and anti-sliding capacity of the retaining wall is improved.

The invention provides a foam concrete slope crest reconstruction and extension structure in a landslide field area and a construction method thereof. The slope crest reconstruction and extension structure comprises a slope surface protection structure constructed after grading sloping of a slope surface of an original slope, a row of anti-slide piles constructed on a grading sloping slope surface platform of the original slope, a row of beam top stand columns fixed above pile top connecting beams of the anti-slide piles, and a row of anchoring piles constructed in the original slope and close to a building. An inter-stand-column breast board is arranged between every two adjacent beam top stand columns, foam concrete structures are filled between the inter-stand-column breast boards and the graded sloping net hanging concrete spraying structures, and a plurality of sets of horizontal opposite-pulling anchor cables are connected between the beam top stand columns and the anchor pile top connecting beams. The overall stability of the reconstruction and extension site landslide is greatly improved, and slope crest displacement is effectively controlled; the surface subsidence of the slope top behind the anchoring pile is effectively controlled within a design and standard range; meanwhile, the foam concrete structure is used for filling the roadbed, so that filling pressure can be relieved, and compactness and strength are guaranteed.

The utility model discloses a steel billet on-line weighing system. The system at least comprises a weighing device. The weighing device comprises a frame and a plurality of weighing modules arranged below the frame. A plurality of roller ways are arranged on the frame at intervals; wherein the frame is composed of a first weighing frame and a second weighing frame which are the same in length; and the end parts of the first weighing frame and the second weighing frame are in clearance lap joint. The weighing frame is of a split structure and is connected in a lap joint mode, and equipment is convenient to machine, transport and install. A 10 mm gap is reserved between the two end faces of the first weighing frame and the second weighing frame, and the structural design enables the first weighing frame and the second weighing frame to have certain deformation in the direction of the center line M.

The utility model relates to the technical field of positioning jigs, and particularly discloses an earphone positioning jig. The jig comprises a fixing block, a limiting block, a supporting structure and a bayonet wrench. A limiting groove for accommodating the head is formed in the top end of the fixing block, a positioning groove for accommodating the handle is formed in the bottom end of the fixing block, and the groove bottom of the limiting groove is communicated with the positioning groove; the limiting block can move between a first clamping position and a first avoiding position, and when the limiting block is located at the first clamping position, the head is clamped between the groove bottom of the limiting groove and the limiting block; the supporting structure can swing between a second clamping position and a second avoiding position, and when the supporting structure is located at the second clamping position, the handle part is clamped between the groove bottom of the positioning groove and the supporting structure; the bayonet wrench can swing between the locking position and the loosening position, and when the bayonet wrench is located at the locking position, the supporting structure is clamped between the bayonet wrench and the fixing block. According to the jig, by means of the limiting blocks and the supporting structures, selective clamping of earphone products is achieved, the positioning effect is good, efficiency is high, and the specific structure of the jig is simplified.

The utility model discloses a vertical case unpacking machine, and relates to the technical field of vertical case unpacking machinery. The device comprises a box blank repository, an executing mechanism, a movable suction cup set assembled on the executing mechanism and a box body fixing assembly. The executing mechanism drives the movable suction cup set to suck a box body I on one side of a box blank in the box blank repository, take the box blank out of the box blank repository and move the box blank to the box body fixing assembly, and the box body fixing assembly fixes a box body II on the other side of the box blank. The box body II on the other side refers to the box body II located on the opposite side of the box body I sucked by the movable suction cup set in the box blank forming state; the executing mechanism drives the movable suction cup set to integrally do curve track motion, the movable suction cup set sucks the box body I to drive the box body I to do curve track motion, and the box blank is opened and formed. The vertical case unpacking machine can improve the case blank forming effect and the case blank forming success rate, and is particularly suitable for case blanks made of soft materials, case blanks which become soft due to large humidity or case blanks which are repeatedly used.

The invention discloses a fender buffering structure of a polar icebreaker. The fender buffering structure comprises a fender buffering structure body composed of an outer-layer steel structure and an inner-layer elastic structure. The outer-layer steel structure comprises a fender top plate, fender side plates, fender front and rear end coamings, end limiting cushion blocks, middle limiting cushion blocks and inner limiting toggle plates, the fender top plate, the fender side plates, the fender front and rear end coamings and the hull outer plate form a closed structure, the end limiting cushion blocks are arranged at the two ends of each fender side plate, the middle limiting cushion blocks are arranged in the middles of the fender side plates, and the inner limiting toggle plates are arranged in the middle of the fender side plates. A plurality of internal limiting toggle plates are arranged between the fender side plate and the hull outer plate, and the inner-layer elastic structure is limited through the end limiting cushion blocks, the middle limiting cushion blocks and the internal limiting toggle plates. The device is suitable for ship-ice and ship-ship collision scenes in a polar region complex environment, has a good buffering effect and can provide a good protection effect on a ship body; a fender buffer structure protection area is flexibly arranged according to ship design requirements and functions; and the low-temperature resistance meets the long-term use requirements in a low-temperature environment.

The invention provides a pole column and a battery cell, the pole column comprises a bottom plate and a column body arranged on one side surface of the bottom plate, the side surface of the bottom plate provided with the column body is provided with a supporting area arranged along the circumferential direction of the column body, the supporting area is used for supporting a sealing element sleeved on the column body, the supporting area divides the side surface into two side areas which are oppositely arranged, and the two side areas are arranged on the side surface of the bottom plate. And a weight reducing groove is formed in at least one side part area. According to the pole disclosed by the invention, the supporting region is arranged on the bottom plate, so that the use effect of the sealing element is ensured, the weight reduction groove is formed in at least one side region of the bottom plate, so that the weight and the production cost of the pole are reduced, the lightweight design of the battery cell is also facilitated, and the welding effect of the bottom plate and the tab is not influenced; therefore, a good using effect is achieved.

The invention discloses a door lock which comprises a lock body, a main spring bolt, a driving gear, a driving seat and a grip seat are arranged on the lock body, the main spring bolt is in transmission connection with the driving gear, the grip seat is sleeved with a transmission gear meshed with the driving gear, and the driving seat is in sliding fit with the lock body. A driving motor, a first driven gear, a lifting gear, a damper and a second driven gear are arranged on the driving seat, the second driven gear is meshed with the driving gear, the first driven gear is meshed with the driving motor, a lifting groove is formed in the first driven gear, and a lifting boss inserted into the lifting groove is arranged on the lifting gear; matching teeth and a reset spring are arranged between the first driven gear and the second driven gear, and the damper is meshed with the lifting gear. A pressure spring is arranged between the lock body and the driving seat; an abutting flange is arranged on the peripheral wall of the grip base. The clutch device is simple in structure, rapid in clutch operation response, reliable in transmission structure use and good in use effect.

The invention relates to the technical field of drainage devices, and discloses a drainage device for hydraulic engineering, which comprises a water inlet, the bottom of the water inlet is fixedly connected with a connecting pipe, the bottom of the connecting pipe is fixedly connected with a shell, and the bottom of the shell is fixedly connected with a water outlet. Water flow enters from the edge of the water inlet, so that friction force is generated between the first transmission wheel and the water leakage plate for autorotation, impurities such as branches and leaves which are doped in the water flow and easily cause blockage can be crushed, the situation that blockage of the drainage device affects circulation of the water flow is avoided, and the drainage effect of the drainage device is improved; meanwhile, an arc-shaped plate rotates to drive a scraping plate to rotate, so that holes in the surface of the water leakage plate can be scraped open, and the situation that crushed impurities are accumulated at the bottom of the water inlet, consequently, the holes in the inner wall of the water leakage plate are blocked, and the flowing effect of water flow is affected is avoided.

The invention belongs to the technical field of medical experimental instruments, and provides an electrode device for subcutaneous implantation, comprising: an electrode comprising a cylinder structure and a barb structure arranged at one end of the cylinder structure; one end of the wire is connected with the cylinder structure; and the interface is connected to the other end of the wire. The section width of the electrode can be increased through the cylinder structure, the electrode can be stably implanted subcutaneously, and electrode displacement or damage caused by animal activity or tissue growth can be reduced. The barb structure enables the electrode to be better fixed subcutaneously, so that the electrode can be accurately positioned, the accuracy of an experimental result and the repeatability of an experiment are improved, and the complexity of surgical operation is also reduced.

The invention relates to the technical field of buildings, and discloses a recyclable universal back arris and a mounting method.The recyclable universal back arris comprises two back arris bodies and a connecting frame, each back arris body comprises two camber beams, a plurality of connecting plates are welded between the two camber beams, and the connecting frame is connected with the camber beams. The camber beams, the connecting plates and the connecting frames are all made of steel. The ends, close to each other, of the two back ridge bodies are slidably connected to the outer side of the connecting frame, and an adjusting mechanism is arranged in the connecting frame. The back arris is reasonable in design, the back arris is made of steel, the back arris has extremely high strength and bearing capacity, the back arris can be conveniently and rapidly installed through the installed installation mechanism, the installation mode is high in universality, and therefore the back arris can be suitable for different use scenes, cyclic utilization of the back arris is facilitated, and the concept of green construction is met; the length of the back ridges can be adjusted according to needs through the adjusting mechanism, and the flexibility and adaptability of construction are improved.

The utility model relates to the field of data line supporting frames, in particular to a data line supporting frame with a joint protection function. The technical problem is that an existing data line supporting frame can assist in supporting data lines, but if the data lines are too long, the data lines may be wound together, confusion and entanglement are caused, and therefore the service life of the data lines is affected. According to the technical scheme, the data line supporting frame with the connector protection function comprises a supporting assembly, a lifting clamping assembly, a rotating assembly, a mobile phone placement frame, a connector protection assembly and a telescopic clamping assembly, a telescopic column moves up and down along a telescopic sleeve through adjustment of a positioning bolt in the lifting clamping assembly, and after the telescopic column reaches a proper height, the telescopic column is fixed through the positioning bolt; the data line can be clamped into the first claw clamp to be fixed by adjusting the heights of the multiple sets of telescopic columns, the data line cannot be wound, abrasion is reduced, and operability of the data line supporting frame is improved.

The invention relates to the technical field of sensor detection, and discloses a sensor sensitivity automatic metering detection device and a use method thereof.The sensor sensitivity automatic metering detection device comprises a shell, a detection box is fixedly installed in the shell, a clamping assembly is arranged in the detection box, and a cooling assembly is arranged between the shell and the detection box; before detection, a to-be-detected temperature sensor needs to be clamped and fixed, one end of the to-be-detected temperature sensor is inserted into a mounting hole of a base, a double-shaft motor is started, threaded rods at the two ends rotate synchronously, and a threaded sliding block and a sliding block move to enable connecting plates on the two sides to drive clamping pieces to be close to each other; a hydraulic rod is pushed to extend out to drive a positioning plate to move downwards, a positioning hole in the positioning plate accurately penetrates through the temperature sensor to be detected, the upper end of the temperature sensor to be detected is limited, and the moving space of the temperature sensor to be detected in the vertical direction is limited. And the whole process can be smoothly propelled under a stable condition.

The utility model belongs to the technical field of guitars, and discloses a guitar shell, which comprises a guitar body and a guitar neck, the guitar body is connected with the guitar neck through a fixing bolt, a positioning assembly is arranged on the guitar neck at a position corresponding to the fixing bolt, and the positioning assembly comprises a fixing shell fixed on the guitar neck. Two springs which are symmetrically arranged up and down are arranged in the fixed shell, movable plates are connected to the ends, away from each other, of the springs, movable rods are connected to the sides, away from the springs, of the movable plates, the ends of the movable rods penetrate through the fixed shell and are connected with sawtooth plates, and the positioning assemblies can effectively limit displacement and rotation of the fixed bolts; according to the guitar, the connecting stability of the guitar body and the guitar neck is greatly enhanced, the loosening frequency of the fixing bolt is reduced, the times of checking and fastening the bolt by a player are reduced, the maintenance time and energy are saved, meanwhile, guitar performance reduction caused by loosening of the bolt is avoided, the service life of the guitar is prolonged, and the maintenance cost is reduced.

The utility model belongs to the technical field of waterproof of lower room structures, and particularly relates to a waterproof and anti-leakage structure of a basement connection node. In order to solve the problems that complex water seepage paths are difficult to resist, the maintenance cost is increased due to inconvenience in disassembly and maintenance and a waterproof layer is easy to crack due to insufficient deformation coordination of a rigid assembly and a wall body in the existing single-layer waterproof or permanent fixed installation design, the following scheme is provided: the waterproof structure comprises an existing wall body and a newly-built wall body; a multi-stage water seepage blocking path is formed through the inner waterproof layer and the water stop steel plate, and even if a single layer is damaged, underground water pressure can still be effectively resisted; quick disassembly and assembly are achieved through threaded connection and a clamping structure, wall damage is avoided, and the maintenance cost is remarkably reduced; the flexible coiled material and the sealing rubber strip absorb structural deformation displacement, the fixing block embedment design limits displacement of the waterproof belt, long-term stability under dynamic loads is ensured, and the technical problems that a traditional waterproof layer cracks, is difficult to maintain and poor in adaptability are comprehensively solved.

A limiting device for an aircraft cargo system, used to secure a pallet loaded with cargo, includes: a guide rail, the guide rail being elongated and its long side perpendicular to the central axis of the aircraft; and a left and right securing assembly, each having multiple securing devices. These multiple securing devices are inclined relative to the guide rail and rotatable relative to it. The limiting device further includes an anti-misloading component, detachably inserted into the guide rail at a position adjacent to and above the bottom ends of the multiple securing devices. This aircraft cargo system limiting device effectively prevents the securing devices from being accidentally pressed down during pallet loading.

The utility model relates to the technical field of oil-immersed transformers, in particular to a transformer oil tank and iron core connecting structure which comprises an oil tank bottom plate and an iron core base located above the oil tank bottom plate, a piston cylinder is fixedly installed on the oil tank bottom plate, a piston cylinder cover is installed at the upper end of the piston cylinder, and a through hole is formed in the middle of the iron core base. A connecting rod is vertically arranged in the through hole, the lower end of the connecting rod penetrates through the piston cylinder cover and extends downwards into the piston cylinder, a horizontally-arranged piston is installed at the lower end of the connecting rod, an elastic piece is arranged between the bottom of the piston and the bottom of the piston cylinder, and a first oil hole and a second oil hole are formed in the side wall of the piston cylinder from top to bottom. The up-and-down movement range of the piston is the distance between the highest point and the lowest point of the hole diameters of the first oil hole and the second oil hole in the vertical direction. According to the device, the elastic piece is adopted for damping, and meanwhile liquid pressure is added for assisting damping, so that the damping effect is good.

The utility model discloses an I-shaped steel reinforcing assembly which comprises transverse I-shaped steel fixedly installed on the left side and the right side of I-shaped steel, a round sleeve is installed on the front side of the I-shaped steel, a square sleeve is installed on the surface of the round sleeve, and a plurality of bolts are arranged on the surface of the I-shaped steel in a penetrating mode. The round sleeve and the square sleeve are fixedly connected with the I-shaped steel through bolts, a connecting frame is fixedly connected to the surface of the square sleeve, an upper top plate is arranged at the top of the connecting frame and fixedly connected with the I-shaped steel, and a lower bottom plate is arranged at the bottom of the connecting frame and fixedly connected with the I-shaped steel. The round sleeve, the square sleeve and the connecting frame are used in cooperation, the periphery of a hole formed in the I-shaped steel is reinforced, then the supporting plate, the supporting frame and the triangular supporting plate are used in cooperation, the triangular supporting plate can support the lower bottom plate, and finally the round sleeve is stably installed on the periphery of the hole formed in the I-shaped steel.

The utility model discloses a folding-resistant category seven network cable, which comprises a plurality of copper core wires, a plurality of grounding wires, a copper core wire shielding layer, a central coating layer, an aluminum foil shielding layer, a woven mesh shielding layer, an outer wire layer and a central framework, the cross section of the central framework is in a cross shape, the elastic ring is arranged on the outer side of the central coating layer, and tightening rings are arranged on the elastic ring at certain intervals. Through the arrangement of the central framework and the elastic ring, the bending resistance of the network cable can be improved, and excessive bending of the copper core wire in the bending process is reduced; and through the arrangement of the central framework, the abrasion among the plurality of copper core wires in the bending process can be reduced. The elastic ring formed by spirally winding the plastic sheet can reduce the risk that the metal elastic ring punctures the inner and outer insulating layers, and by arranging the tightening ring, the displacement of the end part of the elastic ring can be limited when the elastic ring is cut off for use, and the risk that the elastic ring punctures the inner and outer structures is reduced.

The present invention discloses a single battery module, including a shell, a battery body, a tab fixing frame, two bus bars and two connectors. The battery body is fixed inside the shell, the tab fixing frame is arranged inside the shell near the side of the battery body tab, the bus bar is fixed on the tab fixing frame, and the two tabs of the battery body are electrically connected to the two bus bars respectively. The connector includes a connector body and a plurality of information acquisition harnesses, the connector body is fixed on the tab fixing frame, one end of the information acquisition harness is fixed in the connector body, and the other end is fixed on the bus bar. By adding a connector for connecting the information acquisition harness and the BMS system to the battery module, the present invention can directly remove the external acquisition line by plugging and unplugging, which is convenient for installation and maintenance; the connector is fixed on the tab fixing frame, and an additional fixing point is provided, which enhances the connection strength and reduces the risk of falling off, especially in mobile application scenarios such as electric vehicles and electric boats, and improves the system operation stability.

The invention relates to the technical field of hot-line work, in particular to a wiring auxiliary device for hot-line work. The two limiting rings are connected to the two ends of the front side of the auxiliary frame correspondingly; the push-and-pull frame is slidably arranged between the two limiting rings in a penetrating mode, and the two ends of the front side of the push-and-pull frame are each provided with a retaining ring used for assisting in pushing the branch line; the buckling parts are respectively arranged on the two buckling rings and are used for assisting in fixing the position of the branch line; and the shaping parts are arranged on the two sides of the auxiliary frame correspondingly and used for fixing and assisting in straightening the main line. Through a sliding mechanism between the auxiliary frame and the pushing frame, manual intervention in the approaching process of the branch line and the main line is effectively reduced, the risk that an operator makes direct contact with a live part is remarkably reduced, in addition, through the buckling part and the shaping part which are ingeniously designed, the stability of the relative position between the branch line and the main line is ensured, and the working efficiency is improved. Therefore, the wiring process is greatly simplified, and the safety and efficiency of the live wiring operation are improved.

The utility model provides a kind of cover plate structure and battery, belong to battery technical field, cover plate structure includes first cover plate, first pole post, first lower plastic and insulating part being arranged on first cover plate, and connecting portion being arranged between first lower plastic and insulating part. Among them, first pole post is used to and the first lug of pole group is connected, insulating part can be connected with first lower plastic by connecting portion, and abuts on the side of first lug opposite to first pole post. The cover plate structure of the utility model can fix the first lug after welding, limit the shake and displacement of first lug in the process of battery use, transportation etc.

The utility model provides a suspension runner plate structure, a hydraulic suspension and a vehicle, the suspension runner plate structure comprises a structure body and an adjusting part, and an inertia channel is arranged in the structure body. The adjusting part comprises an adjusting piece arranged on the structure body, the adjusting piece is provided with a guiding part extending into the inertia channel, and the guiding part can guide part of the damping liquid in the inertia channel to flow reversely. According to the suspended runner plate structure, the adjusting part is arranged on the structure body, and the guiding part extending into the inertia channel is arranged on the adjusting part, so that the guiding part can guide part of damping liquid in the inertia channel to flow reversely; therefore, the damping fluid flowing in the reverse direction and the damping fluid flowing in the normal direction can generate opposite impact force, the flow speed of the damping fluid is reduced, the damping angle can be adjusted, and the damping characteristic of the suspension runner plate structure is optimized and improved.

The invention relates to the technical field of water resource utilization, in particular to municipal construction rainwater collection and utilization equipment which comprises a water inlet pipe, a water storage tank is arranged outside the water inlet pipe, a communicating pipe is fixedly connected between the water inlet pipe and the water storage tank, a water outlet assembly is arranged in the water storage tank, and a filtering assembly is arranged at the top of the water inlet pipe. The filtering assembly comprises a water collecting frame, a containing groove, a mounting side plate, a driving roller, a filter screen belt and an intercepting plate, and a power assembly is arranged in the water inlet pipe and comprises a driving rotating shaft, driving blades and a transmission belt; according to the device, filtered rainwater falls on the side walls of driving blades, a driving rotating shaft rotates, under transmission of a transmission belt, a driving roller synchronously rotates along with the driving rotating shaft, a filter screen belt moves along with rotation of the driving roller, impurities on the top of the filter screen belt are conveyed away, and the filtering effect of the filter screen belt is guaranteed; the problem that a filter screen in an existing rainwater collection and utilization device is blocked is solved.

The utility model provides an electric connector, which comprises a shell with an installation cavity, a tubular shielding conductor inserted in the installation cavity, an insulator inserted in an inner cavity of the shielding conductor and provided with an insertion cavity, and a contact pin inserted in the insertion cavity, the pin and the shielding conductor are coaxially arranged, and the housing and the shielding conductor, the shielding conductor and the insulator, and the insulator and the pin are fixedly connected through glue injection. According to the electric connector provided by the utility model, the space among the parts can be filled by utilizing the fluidity of the glue, and the step positioning among the parts is combined, so that the parts can be bonded and fixed after the glue is cured, and the air tightness requirement can be met, thereby improving the sealing and isolating effects of the electric connector.

The utility model provides a high-pressure wear-resistant centrifugal steam turbine impeller, which relates to the technical field of steam turbine impellers, and comprises a connecting shaft, fan blades, a limiting piece, a mounting plate, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft and a connecting shaft, and is characterized in that the limiting piece is arranged outside the fan blades and is used for connecting and limiting the fan blades; the fixing ring is fixedly arranged on the outer sides of the ends of the multiple fan blades, the mounting piece is arranged in the mounting plate, the limiting block is fixedly arranged on the inner side of the mounting plate, and the ends of the fan blades are fixed through the fixing ring and a multi-stage limiting structure of the connecting ring and the limiting plate. Compared with the prior art, the vibration trend of the fan blades under the action of wind power in operation can be effectively limited, it is ensured that the positions of the fan blades are relatively static, the vibration amplitude is greatly reduced, the phenomena of friction, collision frequency and stress concentration between the fan blades and peripheral components are remarkably reduced through vibration reduction, and material fatigue, abrasion and structure looseness caused by high-frequency vibration are avoided.

The utility model discloses a telescopic rod piece and modularization quick assembly apron for shock insulation ditch, set in the top of shock insulation ditch, include: support beam, parallelly arranged two, and both ends are used for hinged connection with the structure connection, support beam is telescopic structure, support rod piece, install on support beam and along the length direction of support beam and set side by side multiple groups, support rod piece with support beam swing joint, make the support rod piece interval can be relatively staggered. The application is through the pin shaft hinged joint node and the flexible apron component cooperation design, ingenious use parallelogram unstable characteristics, through linkage between the rod piece and the rod piece, realize the telescopic between the rod piece, realize the apron in horizontal and vertical two -way self -adaptation displacement, have when the earthquake and not easy to take place the upwarp, threaten personnel safety and the strong carrying capacity, can satisfy the demand of passing through the person, passing the car.

The utility model relates to the technical field of medical auxiliary instruments, in particular to an adjustable trachea cannula fixing bite block which comprises an upper protection plate and a lower protection plate, the upper protection plate and the lower protection plate are connected with an oral cavity portion and a fixing portion in a clamped mode, and the top end of the oral cavity portion is connected to the bottom of the fixing portion. The connecting part is connected to the top end of the fixing part, the fastening part is detachably connected with the end, away from the fixing part, of the connecting part, and the fastening part is used for adjusting and fixing the tracheal catheter according to the diameter of the tracheal catheter; the fastening part, the connecting part, the fixing part and the oral cavity part are concentric along the axis and are of hollow structures. The tracheal catheter fixing device is simple in structure and convenient to operate, saves space, can fix a tracheal catheter, limits displacement of the tracheal catheter, prevents a patient from biting the tracheal catheter, and avoids secondary injury and even life danger to the patient; extra space of the oral cavity is not occupied, and the device can be suitable for tracheal catheters with different diameters; the body temperature change of a patient can be monitored.