55results about How to "Easy to support" patented technology

The invention belongs to a template early-dismounting device which mainly consists of an adjusting screwed conduit, a splint rod, a bracket, a bracket adjusting nut, a top plate adjusting nut and an upper blocking bolt; the outer surrounding wall of the adjusting screwed conduit is an outer thread for the screw arrangement of the bracket adjusting nut and the top plate adjusting nut; the side of the adjusting screwed conduit is provided with a penetrated longitudinal conduit ferrule; one end of the adjusting screwed conduit is provided with a socket that be inserted by a scaffold tube; the outer thread part is provided with the bracket, the bracket adjusting nut, the upper blocking bolt and the top plate adjusting nut in turn from up to down; the invention can adjust the height of a plate and a beam formwork at any time according to operation requirements and has the advantages of simple structure, convenient use and operation, time and labor saving, safety and reliability, high commonality, convenient checking, easy mounting and dismounting.

A coal bed alley way three dimensional anchor cable net support technology is best adapted for supporting the thick rock layer with soft top board in mine. When adopting the anchor cable to fix the top board rock layer, the anchor rods at two ends of the same top board are connected to two adjacent anchor cable in level plane cross direction to integrate all supports in order to form a strict 'support net'. The anchor cable can reinforce the top board rack layer in vertical direction, and can be connected to two anchor rods and the front and rear adjacent anchor cables in level direction. The alley way top board rock layer can bear a three dimensional restraining force, so the top board rock layer is prevented from being damaged earlier, the reliability and safety of the support whole body are increased, the difficult problem the bottom construction top board risk when exploiting thick and very thick soft coal layer in mine is solved. The construction technics is simple, convenient in locale operation and has broad practicability.

The invention discloses a height-adjustable protective fence for a water conservancy project. The height-adjustable protective fence for the water conservancy project comprises a first base and a second base, wherein the upper surface of the first base and the upper surface of the second base are separately fixedly connected with a first supporting leg and a second supporting leg; an upper connecting rod and a lower connecting rod are fixedly connected between the first supporting leg and the second supporting leg; the upper connecting rod is fixedly connected with the lower connecting rod through a supporting rod; and a bearing is clamped on the surface of the upper connecting rod. By rotation of a screw, threads on the surface of the screw pushes a toothed rail to move in the vertical direction, the track teeth are subjected to thrust of the screw and move in the vertical direction so as to drive a handrail to be adjusted vertically, under the limiting effect of a push rod, the firstsupporting leg and the second supporting leg, the handrail only can move in the vertical direction, under the limiting effect of a chute and a clamping tooth, the push rod is prevented from being separated from the inside of the first supporting leg and the inside of the second supporting leg, and by synergistic effect of various components, stepless height adjustment of the handrail in the vertical direction is implemented.

The invention discloses a weight lifting device for electric power construction. The weight lifting device comprises a device body frame. A set of wheel stands is arranged on the lower portion of the device body frame. The device body frame is in sliding fit with a telescopic frame. Pushing arms are arranged on the two sides of the device body frame. A pedal plate is arranged on the upper portion of the device body frame and connected with a controller through a stand column. A sliding frame and a set of lifting oil cylinders are arranged on the front portion of the device body frame. The sliding frame is in sliding fit with a bracket. A mounting plate is arranged at the tops of the lifting oil cylinders and provided with a sling shaft seat and a gear motor. The sling shaft seat is in rotary fit with a sling shaft. A set of slings is wound around the sling shaft. A storage battery set is further arranged on the device body frame. The weight lifting device for electric power construction is convenient to move, capable of being located flexibly, reliable in supporting, stable in center, easy to operate, capable of completing weight lifting work, adjustable in lifting weight range, low in device cost, small in occupied space and flexible to use.

The invention provides a base plate measuring device. Which can rightlt measure enlarged base plate. The metroscope comprise: pedestal (10); objective table (14), which is not stressed by pedestal but is supported by pedestal with its surface inclined a minute angle in relative to vertical direction; guide roller (42) and depressing roll (43), which supports lower part of measured base plate (100); platform (15), which is guided by rail (45) installed on upper and lower of objective table, and moves right and left along objective table surface; camera (18), guided by rail (53) set on platform and move up and down along platform.

The invention relates to the technical field of mechanical equipment, and especially relates to surface deburring equipment for a vehicle-mounted steering oil cylinder. The surface deburring equipmentfor the vehicle-mounted steering oil cylinder can effectively save the physical strength during manual treatment, simplify the treatment mode and increase the working efficiency by carrying out deburring treatment on the surface of the vehicle-mounted steering oil cylinder; meanwhile, the grinding strength of the equipment can be kept consistent, and the grinding amount for the surface of the oilcylinder can be kept consistent conveniently, so that the smoothness of the surface of the oil cylinder is effectively improved, the oil cylinder is prevented from sinking and being damaged, the deburring effect on the surface of the oil cylinder is improved, the grinding quality is effectively improved, and the practicability and reliability are improved. The surface deburring equipment for thevehicle-mounted steering oil cylinder comprises a working platform, four groups of supporting legs, a square fixing frame, four groups of first supporting frames, two groups of first guide rails, a first lead screw and a first motor, wherein the four groups of supporting legs are all installed at the bottom of the working platform; a vertically-through through groove is formed in the middle part of the left end of the working platform in a communicating mode; a pushing device is arranged in the through groove; and tensioning devices are arranged on the pushing device and at the right side of the top of the working platform separately.

The invention belongs to a bench, and in particular to a bench slide plate. The bench slide plate includes a bench surface and is characterized in that both sides of the bench surface are curled up, four foldable stool legs are installed under the bench surface, the outer sides of the stool legs are provided with wheels, a groove is arranged on the rear end of the curling part at one side of the bench surface, a roller is arranged in the groove, a mat rolls on the roller, a hooking nose hangs on the mat, and the other bench surface is provided with a protrusion. Wheels are arranged on the outer sides of the stool legs under the bench surface, and the stool legs are foldable, so as to facilitate bench surface support and movement of the device provided by the invention; in addition, the bench slide plate has the advantages of simple structure and convenient usage.

The invention discloses a regulator for environment-friendly engineering equipment. The regulator comprises a bottom supporting and moving device, a shock absorption device, a regulating device, a portal supporting device, a first protective device and a second protective device. When the regulator is used, the environment-friendly engineering equipment installed on the regulator can be moved and supported conveniently by arranging the bottom supporting and moving device, the shock absorption effect of the environment-friendly engineering equipment installed on the regulator can be improved by arranging the shock absorption device, the height can be adjusted as required by arranging the regulating device, supporting can be facilitated by arranging the portal supporting device, and the environment-friendly engineering equipment can be protected by arranging the first protective device and the second protective device.

The invention discloses a data blood relationship analysis method based on a compiling mode, which comprises the following steps: S1) firstly collecting SQL scripts and metadata on a data governance platform to form a uniform format; s2) analyzing the collected SQL scripts to form an abstract syntax tree, and performing semantic analysis according to metadata, or explaining and executing the SQL; s3) constructing a data blood relationship based on the SQL syntax tree with semantic information and the data blood relationship model; s4) performing position layout of the graphic elements according to the data blood relationship, and performing visual display and data traceability operation; and S5) determining a unique identifier of each data conversion in the data blood relationship, and carrying out persistence on the data blood relationship. According to the method, a correct traceability result can be obtained, good data blood relationship analysis support for numerous databases is realized, and a new data governance platform in the future is also easily supported.

The invention discloses an energy-saving and environment-friendly heating furnace, which comprises a furnace body, the bottom of the furnace body is provided with support legs, the top of the support legs is provided with a buffer mechanism, the bottom of the support legs is provided with an anti-skid mat, and The outside of the shell of the furnace body is provided with a heat insulation layer, and the surface of the shell of the furnace body is provided with an observation window. The furnace body is a double-layer furnace jacket, and a water storage interlayer is arranged inside the double-layer furnace jacket. The bottom of the water storage interlayer is provided with a water inlet, the top of the water storage interlayer is provided with a water outlet, the top of the other side of the furnace body is provided with a flue, the flue is provided with a chute, and the chute There is a filtering mechanism inside, one end of the flue is connected to the furnace body, the other end of the flue is provided with a water tank, the bottom of the water tank is provided with a support frame, and the support frame is connected to the furnace body Fixedly connected, the top of the water tank is provided with a chimney. The energy-saving and environment-friendly heating furnace has the advantages of simple structure, convenient operation, shockproof and heat insulation functions, and the ability to purify waste gas.

The invention relates to the field of formwork reinforcement, in particular to a formwork reinforcement assembly with the self-limiting function. The formwork reinforcement assembly comprises a control mechanism, an expansion mechanism, a limiting mechanism, a lubricating mechanism and an oil drain mechanism. Through the control mechanism, the formwork reinforcement assembly can be used for fixingdifferent formworks conveniently and flexibly, and the applicability of the formwork reinforcement assembly is improved. Through the expansion mechanism, the diameter of an expansion plate can be freely increased or reduced, and the good supporting effect on the formworks can be achieved. Through the limiting mechanism, the expansion plate damaged in the using process can be replaced in time, andthe working procedure and efficiency are ensured. Through the lubricating mechanism, the interior, not convenient to lubricate, of a second control block making contact with a first rotary shaft anda second rotary shaft can be lubricated, and the wear rate of the interior of the second control block is reduced. Through the oil drain mechanism, the air is prevented from going into lubricating oilsupplied to the interior of the second control block, so that parts are isolated from the air, and the service life of the parts is prolonged.

The invention discloses a gooseneck hinge transmission rack and belongs to the field of temporary storage and transmission devices for gooseneck hinges of automobiles. The gooseneck hinge transmission rack comprises a frame and supporting feet, wherein one or more suspension units are arranged on the frame; each suspension unit comprises two suspension rods which are located above and a propping plate which is located below; a row of suspension pins are fixed on each suspension rod which is close to the inner side; when a gooseneck hinge is hung invertedly on the suspension pins, the propping plate props up a short hinge rod of the gooseneck hinge; and the two suspension rods and the propping plate are all fixed on the frame. According to the device, the space inside the transmission rack can be used three-dimensionally; a plurality of gooseneck hinges are accommodated; and the accommodated gooseneck hinges are arranged orderly and not easy to slip off.

The invention discloses a support for a coal mine. The support comprises a top beam track and a base track. An upper guide wheel is arranged on one side of the top beam track. An upper drive wheel is arranged on the other side of the top beam track. A lower guide wheel is arranged on one side of the base track. A lower drive wheel is arranged on the other side of the base track. Hydraulic uprights are arranged between the top beam track and the base track. A four-bar linkage device is installed in the middle positions of the hydraulic uprights. Rotary shafts are arranged in the middle of the four-bar linkage device. The support can be flexibly used in coal mining, the coal mine can be conveniently supported in explosion, safety of workers and the coal mine in the mining process is guaranteed, the automation degree is high, stability is high, cost is low, practical performance is good, expansibility performance is excellent, design is novel, a good creative scheme is raised, and the support has great market popularization prospects.

The invention belongs to the technical field of screw rod production, and particularly relates to a double-screwing-direction threaded long screw rod production line and a production process thereof.The double-screwing-direction threaded long screw rod production line comprises a quenching and tempering treatment furnace for screw rod pre-heat treatment and an end face milling machine for screw rod end face milling treatment. A second mounting base is inserted through four mounting grooves, so that the distance between a first mounting base and the second mounting base is increased, screw rods with various lengths can be fixed through a positioning sleeve and a connecting sleeve, the applicability is improved, the second mounting base is inserted into mounting grooves with the adaptive lengths according to the lengths of the screw rods, threaded rods are screwed to be fixed to the second mounting base, then the screw rods sequentially penetrate through the connecting sleeve and the positioning sleeve, a clamping base is pressed downwards to fix the screw rods by rotating a positioning bolt on the inner side of the positioning sleeve, supporting of the screw rods is achieved, thensubsequent machining operation can be conducted, the supporting and fixing mode of the scheme is simple, and therefore the adjusting efficiency is effectively improved.

The invention discloses automatic tunnel assembling type preliminary bracing installation equipment. The automatic tunnel assembling type preliminary bracing installation equipment comprises a transverse moving trolley, a base movably connected with the top of the transverse moving trolley, multiple mechanical arms distributed in a sector radiation manner, a total station and a controller. Any mechanical arm is of a telescopic structure, a workpiece clamping mechanism is mounted on the end of each mechanical arm, a positioning target is mounted on the outer wall of a unit joint, the total station is used for measuring the outline of a tunnel rock face and coordinate value of all positioning targets, and the controller stores a plane hook face, a vertical hook face and section data of the preset tunnel rock face. The preliminary bracing installation equipment and a measuring technology are fused together, through measuring the absolute positions of the positioning targets, the mechanical arms are guided to be adjusted, the preliminary bracing in-place precision is improved, the automatic tunnel assembling type preliminary bracing installation equipment enables tunnel assembly type preliminary bracing work to be simpler and more convenient, and tunnel construction proceed can be quickened.

The invention discloses a whole covering car foot mat. The whole covering car foot mat is an integrated seamless foot mat. The main body is a foot mat block. Protruding diamond columns are arranged on the foot mat block, disk edges around the foot mat block are tilted, and the whole covering car foot mat is disk shaped. The whole covering car foot mat is covered fully and seamlessly, is capable of protecting a carpet on the foot mat, the protruding diamond columns are arranged on the foot mat block, so that power force is easy to utilized, and meanwhile, the foot mat is transparent and beautiful. The whole covering car foot mat is formed seamlessly in one step, is capable of protecting original car carpets around the foot mat, and convex and concave diamond rods, characters and letters are arranged around the foot mat, so that power source is easy to be utilized to hold the high edge portion more stable, and foot mats are designed to be transparent and nontransparent, and the whole covering car foot mat is more practical.

The invention belongs to the technical field of special cabinets, racks or shelf assemblies for storing books, files, tables and the like, and discloses an adjustable file storage cabinet. The storagecabinet comprises a cabinet body and partition plates arranged in the cabinet body, wherein the partition plates comprise transverse plates and a vertical plate, an opening is formed in the cabinet body, a cabinet door is arranged on the opening; a sliding plate is vertically connected to the inner wall, opposite to the opening, of the cabinet body in a sliding mode; the adjustable file storage cabinet further comprises a first adjusting rod, which penetrates through the top part of the cabinet body and is rotationally connected with the top part of the sliding plate; the first adjusting rodis in threaded connection with the cabinet body, and the transverse plate is fixed to the sliding plate; and a through hole is formed in the transverse plates, the vertical plate is located in the through hole, and the upper end and the lower end of the vertical plate abut against the upper side wall and the lower side wall of the cabinet body respectively. The adjustable file storage cabinet solves the problem that adjustment of the storage space in the prior art is still limited by the arrangement positions of the clamping grooves in the cabinet body.

The invention discloses a special support tool for a ship T-shaped bar. The special support tool comprises two plate members, wherein the plate members are oppositely arranged, and are connected into a whole by virtue of a fastening member, the plate members are integral members, the plate members comprise side plates, upper end plates, lower end plates and middle plates, wherein the upper end plates, the lower end plates and the middle plates are all vertically connected with the side plates to form E-shaped members, mounting plates which outwards horizontally extend are arranged at end heads of the upper end plates, mounting holes are formed in the mounting plates; square through holes are formed in the lower end plates; the outer side surfaces of the side plates are inclined surfaces, and included angles alpha are formed between the outer side surfaces of the side plates and the lower end plates, and are 84 DEG. Compared with the prior art, the special support tool has the characteristics of being accurate in positioning and convenient to mount. By using the special support tool, procedures of welding and grinding can be removed, so that excessive procedures are avoided, and thus the production time and cost are saved.

The invention discloses a portable folding automobile handrail. The portable folding automobile handrail comprises a U-shaped mounting plate and a connecting seat; side walls of the connecting seat and the U-shaped mounting plate are in contact connection with each other; a circular groove is formed in the side wall of the connecting seat; a cylinder is fixedly connected to the side wall of the U-shaped mounting plate; one end, far away from the U-shaped mounting plate, of the cylinder is rotationally connected to the interior of the circular groove; a plurality of fixing mechanisms are arranged on the side wall, far away from the U-shaped mounting plate, of the connecting seat; a threaded rod is rotationally connected to the inner wall of an outrigger of the U-shaped mounting plate; one end, far away from the outrigger of the U-shaped mounting plate, of the threaded rod runs through the outrigger on the other side and is fixedly connected with a rotating knob; a first thread and a second thread are arranged on the threaded rod; and the thread rotation directions of the first thread and the second thread are reverse to each other. According to the portable folding automobile handrail, a supporting effect on the left arm of a driver can be realized and aches of the left arm caused by long-time hanging can be effectively relieved.

The invention discloses a fixing device capable of increasing the bearing capacity of a support in a communication equipment box, which comprises a box body, and is characterized in that both left side and the right side of the bottom of the box body are symmetrically provided with two moving devices, the bottom of the box body is provided with a limiting device at the position among the four moving devices, the front of the box body is articulated with a box door through hinges, the bottom of the inner wall of the box body is provided with a support beam, and the bottom of the inner wall of the box body is fixedly connected with a support column located inside the support beam. The fixing device for the support in the communication equipment box can adjust the number of the bearing devices according to the actual weight of communication equipment through the mutual cooperation of the box body, a bearing device, a base plate, first fixing bolts, a base, a first buffer spring, a supportsliding block, a connecting column, a top plate, second fixing bolts, a support plate, a lower anti-slip pad and communication equipment, thereby being convenient for easily supporting the communication equipment, avoiding damages of the communication equipment and the support, and avoiding unnecessary economic losses.

The invention discloses a rehabilitation exercise device of an orthopedics department. The rehabilitation exercise device of the orthopedics department comprises a moped. The moped is formed by a bracket, a support rod and a handrail. The bracket is formed by two crossly installed U-type brackets. The bottom of the bracket is connected with a universal wheel. The top of the bracket is welded withthe vertically installed support rod. The rod wall of the top end of the support rod is welded with a symmetrically distributed connecting rod. One end, away from the support rod, of the connecting rod is welded with the handrail. The support rod is formed by sheathing a first support rod and a second support rod. The outer wall of the first support rod is provided with a through hole. A fixing rotary knob is sheathed in the through hole. The first support rod and the second support rod are fixed through the fixing rotary knob. The rod wall, away from the fixing rotary knob, of the first support rod is fixedly connected with an elastic rope. The rehabilitation exercise device of the orthopedics department is simple in structure, and capable of providing the effective support for a patientin a rehabilitation exercise process of the patient, and realizing the effect of providing the assistance for the patient. In addition, according to the different patients, the rehabilitation exercisedevice of the orthopedics department can be correspondingly regulated, and the device has the high practicability.

The invention discloses a multifunctional nursing supporting device. The device comprises a base, a stand column, a machine box base, a connecting rod base, a connecting rod sliding groove, a joint rotating shaft, a machine box, a leg separating rack, a leg separating gear, a leg lifting gear, a leg lifting rack, a worm, a worm gear, a hand wheel, a connecting block, a first connecting rod, a second connecting rod, a thigh joint, a shank joint, a sliding groove, a long connecting rod and a lifting rod, wherein a left front side of the base is fixedly connected with the machine box base, an upper part of the connecting rod seat is provided with a seat; a lower part of the seat is fixedly connected with a base; an upper part of the case seat is fixedly connected with a case; an upper part ofthe case is fixedly connected with a case cover; the worm shaft is rotationally connected with the turbine shaft hole and rotates in the turbine shaft hole, and a center hole is formed in the middleof the worm and rotationally connected with the center shaft.

The invention discloses a modeling supporting device for landscaping design. The modeling supporting device comprises a bottom plate, a through opening and a heat preservation cloth roller, wherein the through opening is formed in the middle of the bottom plate, the heat preservation cloth roller is arranged at the upper end of the bottom plate and corresponds to the through opening, fixing platesare arranged on the left side and the right side of the upper end of the bottom plate, a first fixing frame is arranged on the upper side of the through opening, a second fixing frame is arranged onthe first fixing frame, connecting rods are hinged to the upper ends of the fixing plates, the upper ends of the connecting rods are hinged to the first fixing frame, fixing bolts are arranged betweenthe first fixing frame and the second fixing frame, and clamping plates are arranged on the left side and the right side in the first fixing frame and the second fixing frame. When the modeling supporting device is used, the bottom plate is inserted and fixed to the ground through ground inserting pins, a sapling penetrates through the through opening, the arranged first fixing frame facilitatesshaping supporting of trunks, and when the sapling grows to be large, the arranged second fixing frame facilitates modeling supporting of trunks on the upper side, so that the effect of modeling supporting of different positions of the sapling is achieved, and the modeling effect is good.

The invention relates to a truss reinforcement stair, comprising a low-end cross beam, a high-end cross beam and a stair plate which extends from the low-end cross beam to the high-end cross beam, wherein the extension direction of the stair plate is longitudinal; the stair plate comprises a plurality of steps which are arrayed along the longitudinal direction; the length direction, vertical to the longitudinal direction, of the steps is horizontal. The truss reinforcement stair is characterized in that the stair plate comprises a longitudinal truss which is arranged longitudinally and a horizontal truss which is arranged horizontally. The truss reinforcement stair is capable of forming a bidirectional space stressed structure, and the stressed structure is more stable and reasonable; on one hand, the structure does not rely on concrete and has excellent rigidity and strength; one the other hand, the structure and the concrete can form an even elastomer which is different from the traditional reinforced concrete; therefore the stair has excellent rigidity and mechanical properties which are proved by tests, and becomes firmer; the thickness and the dead weight of the stair plate are greatly reduced by the structure, and the space and concrete materials are saved; the effects that the design and construction of the supporting structure of a stair support are easier and more convenient are achieved.

The invention provides a telescopic supporting leg and a vehicle. The telescopic supporting leg comprises: a supporting leg assembly, wherein the supporting leg assembly comprises a vertical supporting leg, an outer supporting leg connected with the vertical supporting leg, and an inner supporting leg which is located at the inner side of the outer supporting leg and is connected with the verticalsupporting leg, and the inner supporting leg defines an installation cavity; and a movable rolling wheel assembly comprising a rolling wheel support arranged in the mounting cavity and a movable rolling wheel arranged on the rolling wheel support, wherein the movable rolling wheel is used for winding a cable. A sliding part is arranged on the upper wall surface and/or the lower wall surface of the mounting cavity, the rolling wheel support is provided with a sliding fit part, and the sliding fit part is matched with a sliding part, so that the movable rolling wheel assembly is suitable for reciprocating sliding relative to the inner supporting leg. When a cable is replaced and maintained, other structures do not need to be disassembled, only the movable rolling wheel assembly needs to bedriven to slide to the proper position, operation is easy and fast, the replacement and maintenance efficiency of the cable is effectively improved, manpower and material resources are saved, and themaintenance cost is reduced.

The invention provides an LED screen installation auxiliary device. The LED screen installation auxiliary device comprises a movable base, a U-shaped plate is fixedly connected to the top of the movable base, a supporting plate is arranged between the front face and the back face of the inner wall of the U-shaped plate, a movable plate is slidably connected between the front face and the back face of the inner wall of the supporting plate, and a hydraulic rod is fixedly connected to the bottom of the inner wall of the supporting plate. The top end of the hydraulic rod is fixedly connected to the bottom of the movable plate, a fixed plate is fixedly connected to the top of the movable plate, a U-shaped block is fixedly connected to the right side of the fixed plate, and a rotating rod is rotationally connected between the front face and the back face of the inner wall of the U-shaped block. According to the LED screen installation auxiliary device, a screen can be conveniently supported, the load of workers can be reduced, the safety is improved during high-place operation, meanwhile, the angle of the screen can be adjusted, and the auxiliary device can adapt to installation of the screen at different positions.

The invention provides an automobile rear seat mechanism convenient for a patient with cerebral thrombosis to sit and a using method thereof. The automobile rear seat mechanism convenient for the patient with cerebral thrombosis to sit comprises an automobile inner cabin, two seats, an armrest assembly, a sliding mechanism, an auxiliary handle, a supporting column and two check blocks. The armrestassembly is arranged between the two seats, and the armrest assembly and the two seats are arranged in an inner cabin of the automobile. According to the automobile rear seat mechanism convenient forthe patient with cerebral thrombosis to sit and the using method thereof, the automobile inner cabin, the two seats, the armrest assembly, the sliding mechanism, the auxiliary handle, the supportingcolumn and the two check blocks are arranged to be matched. The seat can be pulled out of the vehicle, so that the old can sit on the seat outside the vehicle, behaviors of the old are greatly facilitated, and time and labor are saved. And compared with a narrow space in the vehicle, the space outside the vehicle is large, and other people can help and hold the old more easily.

The invention discloses a bus stretchable armrest which comprises a lower supporting pipe, an upper supporting pipe, stretchable armrest pipes and connecting pipes. The corresponding connecting pipesare arranged at the lower end of the upper supporting pipe in a symmetrical outward dispersed mode and obliquely face downward, and the lower ends of the connecting pipes are connected with the stretchable armrest pipes. The lower sections of all the stretchable armrest pipes are provided with the corresponding connecting pipes, and the connecting pipes obliquely face downward and are all connected with the lower supporting pipe. The outward-extending armrest pipes are arranged on the periphery of the middle of the single straight pipe type armrest in a bus, the number of the armrest pipes forpassengers standing in the bus is increased, the armrest can be conveniently held by more passengers standing in the bus, the center is stabilized, and shaking and falling are avoided.

The invention provides a roll type strip unwinding device which comprises a base and is characterized in that an unwinding mechanism is arranged on the base and comprises a bottom plate, a sliding rail arranged on the bottom plate, a sliding seat connected with the sliding rail in a sliding fit mode, an unwinding shaft rotationally fixed to the upper end of the sliding seat through a plummer block, and a lead screw assembly driving the sliding seat and the unwinding shaft on the sliding seat to move. The automatic unwinding device can conveniently support, clamp and center strip coils, automatically unwind, automatically rectify deviation and automatically adjust the width to meet the unwinding requirements of the strip coils with different breadths, is conveniently seamlessly connected with or compatible with previous equipment through the guide positioning device and the jacking platform to prepare for automatic unwinding, and is simple in structure, convenient to operate and low in cost. The device is simple in structure, reliable and stable in work and smooth in unwinding, ensures that the unwound strip is straight, and provides guarantee for subsequent strip processing.

The clinical antenatal diagnosis and examination equipment for the obstetrics and gynecology department comprises a bearing base plate, and a plurality of bearing rolling wheels are rotationally installed at the bottom of the bearing base plate; a bearing unit used for bearing a user is arranged in the middle of the bearing base plate and comprises a lifting air cylinder, the output end of the lifting air cylinder is fixedly connected with a bearing frame, a bearing plate is arranged above the bearing frame, the top of the bearing plate is fixedly connected with a soft cushion, the bearing plate is divided into a front section plate, and a rear section plate is arranged on the front section plate. A middle section plate and a rear section plate; a patient is supported through the supporting unit, the height of the supporting unit is adjusted through the lifting air cylinder and the like, and adjustment of the horizontal height of the patient is achieved; according to the bearing unit, the bearing plate is divided into the front section plate, the middle section plate and the rear section plate, the front section plate and the middle section plate are arranged in a mutual rotation mode, the front section plate can rotate, the front section plate can be converted in a horizontal and inclined state, and a patient can be conveniently supported when sitting up.