CN216570506U

CN216570506U - Stretcher vehicle for passing through bed

Info

Publication number: CN216570506U
Application number: CN202220055282.5U
Authority: CN
Inventors: 杜洪峡; 赵传君; 赵岩; 杜菁菁; 赵振楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-05-24
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a stretcher vehicle for passing bed, which comprises a vehicle frame, a bed board and a hand wheel operating mechanism, wherein the bed board is arranged above the vehicle frame, the bed board comprises a frame I and a rolling pipe group, a conveyor belt is sleeved outside the rolling pipe group, the conveyor belt surface forms an upper supporting surface of the bed board, the body of a patient is supported by the conveyor belt surface, the patient on the bed board can conveniently move transversely in the width direction of the bed board, and hard contusion cannot be caused; the lower end of the bed board is connected with the frame through a linear sliding mechanism, the bed board can horizontally move transversely, the hand wheel controls the bed board to move transversely to the central position of the sickbed, and the bed board can be lifted; compared with the traditional stretcher, the whole stretcher-passing stretcher is more convenient to operate and can effectively relieve the pain of patients in the transferring process.

Description

Stretcher vehicle

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a stretcher vehicle.

Background

Traditional stretcher generally includes bed board, guardrail, frame constitution, and the frame liftable, the frame bottom is provided with the truckle, but this kind of stretcher structure has patient to trade the inconvenient problem of bed, especially under the inconvenient condition that removes of sick sign health, is removing the in-process that lifts patient to the sick bed by the stretcher, causes the secondary injury easily, consequently urgently needs a convenient operation, can effectively alleviate the painful stretcher that crosses of patient.

Disclosure of Invention

The utility model aims at providing a cross a stretcher, structural design is reasonable, and convenient operation can realize that patient's translation mode trades the bed, solves traditional stretcher and lifts and moves the difficult problem, can effectively alleviate the painful that patient trades the in-process and receives.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

a stretcher vehicle for passing a bed comprises a vehicle frame, a bed plate and a hand wheel operating mechanism, wherein the bed plate is arranged above the vehicle frame and comprises a frame I, rolling pipes are uniformly distributed and arranged in the frame I, the direction of the rolling pipes is consistent with the length direction of the bed plate, each row of rolling pipes form a rolling pipe group, a conveying belt is sleeved outside each rolling pipe group, the surface of each conveying belt forms an upper supporting surface of the bed plate, the rolling pipes are supporting parts of the conveying belts, the bodies of patients are supported by the surfaces of the conveying belts, and the patients on the bed plate can conveniently transversely move in the width direction of the bed plate without causing hard contusion; the bed board lower extreme passes through sharp glide machanism and connected with the frame, but the horizontal sideslip of bed board, hand wheel operating device set up on frame upper portion, it includes hand wheel, pivot I is parallel with the pipe that rolls, pivot I passes through bearing and connected with the frame, it is rotatable, I fixedly connected with gear I of pivot, the fixed rack that is provided with of bed board lower extreme, gear I is connected with the rack toothing, the hand wheel is connected with the transmission of pivot I, rotatory hand wheel drives pivot I rotatoryly to it is rotatory to drive gear I, and then drives the rack, the bed board is at the displacement of bed board width direction, the bed board of being convenient for is close to the sick bed center, make things convenient for patient to shift.

The linear sliding mechanism is a sliding rail sliding table module, is totally two sets of, is arranged in the width direction of the bed plate, is perpendicular to the rotating shaft I, comprises a sliding block and a sliding rail, is fixedly connected with the bottom of the bed plate, is fixedly connected with the upper end of the frame, is connected with the frame through the sliding rail sliding table module, can slide along the width direction of the bed plate, and serves as a limiting part and a supporting part of the bed plate.

Furthermore, the sliding rail sliding table module can be an SGR series double-axis linear guide rail produced by Zhejiang Hockey bearing Limited.

Further, gear I and rack set up two sets ofly altogether, divide the front and back side of establishing the bed board, when I pivoted of pivot, can drive I rotations of two gears in step, help improving bed board lateral displacement's stability.

The universal caster wheels are arranged below the frame, and the frame is a lifting frame.

Furthermore, the frame comprises a base, an upper rack, a supporting plate and a lifting rod, wherein the front part and the rear part of the supporting plate are respectively provided with one supporting plate, the upper end of the supporting plate is hinged with the bottom of the upper rack, the lower end of the supporting plate is hinged with the base, the lower end of the lifting rod is hinged with the base, and the upper end of the lifting rod is hinged with the upper rack; the hand wheel operating mechanism is arranged on the upper rack and further comprises a lead screw and a nut, the lead screw is in threaded connection with the nut, the nut is hinged to the upper end of the lifting rod, the lead screw is connected with the upper rack through a bearing and is rotatable, the lead screw and the first coaxial line of the rotating shaft drive the nut to move back and forth along the lead screw through rotating the lead screw, the lifting rod is driven to lift, and the lifting of the bed board is achieved.

Furthermore, a supporting plate is fixedly arranged below the bed plate, a rack is fixedly arranged at the lower end of the supporting plate, and a sliding rail is parallel to the rack and fixedly arranged at the lower end of the supporting plate.

Further, hand wheel connection have the catch bar, catch bar and lead screw coaxial line, the hollow tube of lead screw for having the external screw thread, the lead screw cover is put at the catch bar outside, the maximum diameter of catch bar is less than the lead screw internal diameter, the catch bar passes the axis direction displacement around the lead screw can be followed to the lead screw inner chamber, catch bar tail end and hand wheel central part fixed connection, the front end of catch bar is fixed and is provided with double-end separation and reunion tooth I, the tail end of pivot I and the front end of lead screw are provided with separation and reunion tooth II, separation and reunion tooth I constitutes jaw clutch structure with separation and reunion tooth II, furtherly, separation and reunion tooth I and separation and reunion tooth II's tooth profile of tooth tip be the cuspid type, separation and reunion tooth I is harmonious with separation and reunion tooth II, and the impact is little.

When the push rod moves forwards, the front part of the double-end clutch tooth I is in involution scarf joint with the clutch tooth II at the rear end of the rotating shaft I, meanwhile, the double-end clutch tooth I is separated from the clutch tooth II at the end part of the screw rod, and the rotating shaft I rotates by rotating the push rod, so that the transmission of the transverse displacement driving force of the bed plate can be realized; when the catch bar moves backwards, the rear part of the double-end clutch tooth I is connected with the front-end clutch tooth II of the screw rod, the double-end clutch tooth I is separated from the clutch tooth II at the end part of the rotating shaft I, the screw rod rotates by rotating the catch bar, and therefore the screw is driven to move forwards and backwards, and the lifting operation of the frame can be achieved.

Further, the hollow setting of rear end of pivot I, pivot I can be inserted to the front portion of catch bar, helps the accurate butt joint of double-end separation and reunion tooth I and the separation and reunion tooth II of I front end of pivot.

Furthermore, the upper portion of the upper rack is provided with a sliding groove, a sliding plate is arranged at the sliding groove, the sliding plate is horizontally arranged, two side edges of the sliding plate are in sliding contact with the sliding groove, the sliding groove is parallel to the rotating shaft I and the bed plate, an inserting plate is fixedly arranged on the sliding plate and is perpendicular to the sliding plate, the front end of the sliding plate is provided with a rectangular hole I, the rectangular hole I is perpendicular to the rotating shaft I, the sliding plate can move back and forth along the sliding groove, the double-end clutch tooth I is fixedly provided with a circular plate which is perpendicular to the pushing rod, the circle center of the circular plate is arranged on the central axis of the pushing rod, the circular plate partially penetrates through the rectangular hole I and is in movable contact with the rectangular hole I, the width of the rectangular hole I is slightly larger than the thickness of the circular plate, the pushing rod moves back and forth, the circular plate penetrating through the rectangular hole I can drive the sliding plate to move back and forth, the rack or the supporting plate edge is provided with a hole groove as a limiting hole, the inserting plate is in movable contact with the limiting hole, when the double-end clutch tooth I moves towards the lead screw, the plectane drives the slide syntropy displacement, the picture peg inserts in the spacing downthehole of the bed board lower extreme of not displacement state, lock bed board and rack, avoid the bed board to slide about the bed board, when the catch bar drives double-end separation and reunion tooth I lead screw displacement dorsad, spacing hole can be kept away from to the picture peg, when double-end separation and reunion tooth I is right to the fashionable with pivot I, the picture peg can leave spacing hole completely, rack or layer board are no longer spacing by the picture peg this moment, rotatory catch bar, can drive I rotations of gear, and then drive the rack, bed board lateral displacement, picture peg tip and rack or layer board side along sliding friction, the picture peg tip is spacing, fixed connection's slide is spacing with it is spacing, the catch bar can't be taken back this moment, only the bed board resets, when the picture peg can insert spacing hole, the catch bar side can be taken back towards the lead screw displacement.

Further, the slide on still be provided with square hole II, square hole II is used for dodging gear I, avoids slide and I contact of gear.

Furthermore, a compression spring is arranged between the hand wheel and the upper rack and sleeved on the push rod; the push rod comprises a front push rod and a rear push rod, the front push rod and the rear push rod are coaxially arranged and are connected through a coupler, a double-end clutch tooth I is fixed at the front end of the front push rod, a hand wheel is fixedly connected at the rear end of the rear push rod, the front push rod is a round tube, two triangular buffer grooves are formed in the symmetrical sides of the tail end of the front push rod, one side of each triangle is vertical, the opposite angle of the side faces to the direction of the rear push rod, a thin tube is fixed at the front end of the rear push rod, the outer diameter of the thin tube is smaller than the inner diameter of the round tube, the thin tube can be inserted into the round tube, a shaft pin hole is formed in the front end of the thin tube, a connecting pin is inserted into the shaft pin hole, after the thin tube is inserted into the round tube, the connecting pin penetrates through the buffer grooves and the shaft pin hole, the length of the connecting pin is smaller than the outer diameter of the round tube and larger than the outer diameter of the thin tube, the rear push rod moves forwards, the connecting pin moves forwards to the vertical side position of the triangular groove, after the rear push rod is butted with the rotating shaft I, the rotating shaft, the left and right free rotation can be realized, avoid the hard butt joint of II docks of separation and reunion teeth of double-end separation and reunion tooth I and I tip of pivot, free dislocation scarf joint when realizing the butt joint.

Bed board both sides still be provided with the guardrail, the guardrail includes square frame II, the equipartition is arranged in frame II and is provided with the pipe that rolls, the pipe direction that rolls is unanimous with bed board length direction, the pipe that rolls on the guardrail width direction constitutes the pipe group that rolls, the pipe group overcoat that rolls is equipped with the conveyer belt, II lower extremes of frame articulated on one side of frame I, the avris upset of bed board can be followed to the guardrail, the guardrail is put at ordinary times, becomes combination bed board with the bed board group.

Further, the guardrail is connected with the bed board through a bolt structure for positioning, the bolt structure is arranged on one side of a frame II and comprises a bolt, a guide plate and a handle, the frame I and the frame II are both formed by processing stainless steel pipes, pin holes are formed in side pipe bodies of the frame I and the frame II, when the guardrail is perpendicular to the bed board, the two pin holes are aligned, the bolt can be simultaneously inserted into the two pin holes, the positioning guardrail is connected with the bed board, a roller baffle is arranged in the frame II and is perpendicular to the side pipe body of the frame I, a shaft I is fixedly arranged on the roller baffle and penetrates through the roller baffle, the guide plate is vertically arranged and is parallel to the roller baffle, a vertical long round hole I and a horizontal long round hole II are formed in the plate body of the guide plate, the lower end of the roller baffle is fixedly connected with the upper end of the bolt, the shaft I penetrates through the long round hole I, and the guide plate is in sliding contact with the shaft I through the long round hole I, the handle is hinged to the outer end of the shaft I, a shaft pin is arranged in the middle of the handle and in sliding contact with the long round hole II, the other end of the handle is operated, the handle is turned over up and down along the shaft I, the shaft pin slides left and right in the long round hole II, and the guide plate drives the plug pins to move up and down. When the other end of the handle is moved to the highest point, the bolt leaves the pin holes of the side tube body of the frame I, the guardrail can be turned over at the moment, when the guardrail is perpendicular to the bed plate, the other end of the handle is operated, and the end part of the bolt can be simultaneously inserted into the two pin holes to fix the guardrail and the bed plate.

The rolling pipe is a round stainless steel pipe, groove position connecting plates are fixedly arranged in the framework I and the framework II and are perpendicular to the rolling pipe, the rolling pipe is connected with the groove position connecting plates through a rolling shaft, and two ends of the rolling pipe are connected with the rolling shaft through bearings.

The roller is connected with the frame I or the frame II through a buckling mechanism, the buckling mechanism comprises a groove position connecting plate and a clamping plate, two ends of the groove position connecting plate are fixedly connected with the frame I or the frame II, a groove opening with an upper opening is formed in the groove position connecting plate at intervals, the groove opening is U-shaped, the end part of the roller can be placed in the U-shaped groove, the depth of the groove opening is larger than the diameter of the roller, the width of the groove opening is slightly larger than that of the roller, the clamping plate is provided with bevel grooves with the same number and positions as the groove openings, the depth of the groove bottom is larger than that of the groove opening of the groove position connecting plate, the width of the groove bottom is larger than that of the groove opening, one side groove edge of the upper end of each bevel groove is of a protruding structure facing the other side, and if the bevel groove is inclined towards the right side, the left groove edge of the upper end is of a structure facing the right corner; the screens board be provided with horizontally slotted hole IV and be used for passing the rivet, the screens board passes through the rivet and is connected with the trench connecting plate, the IV horizontal direction displacement of slotted hole can be followed to the screens board, when the screens board displacement to the left side, the closed angle structure in closed angle groove does not shelter from the notch of trench connecting plate, the U-shaped notch can be put into to the roller bearing or is taken out from the notch, after to right side displacement screens board, closed angle structure and the intraoral roller bearing upper portion contact in notch, can die the roller bearing card spacing, avoid the roller bearing to deviate from.

The roller baffle is fixedly arranged at two ends of the rolling pipe and used for limiting a roller, the roller baffle is fixedly connected with the groove position connecting plate on the outermost side, the height of the clamping plate is smaller than that of the roller baffle, one side of the groove position connecting plate on the outermost side is in contact with the roller baffle, the other side of the groove position connecting plate is in contact with the clamping plate, and the clamping plate is fixed on the groove position connecting plate through rivets.

The utility model has the advantages that: the stretcher vehicle for passing through the bed has reasonable structural design, and the arrangement of the rolling pipes and the conveyor belt is beneficial to the transverse movement of the human body on the bed plate; the design of the roller buckling structure is beneficial to the disassembly, assembly and fixation of the rolling pipe; the frame can be lifted by a hand wheel, and the hand wheel can also be used for controlling the bed board to transversely move to the center of the sickbed; compared with the traditional stretcher, the whole device is more convenient to operate, and can effectively relieve the pain of the patient in the transferring process.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the utility model after the horizontal movement of the bed board;

fig. 3 is a schematic view of the structure of the bed plate;

FIG. 4 is a schematic view of the guardrail structure;

FIG. 5 is a schematic view of a latch structure;

FIG. 6 is a schematic structural view of a slot connecting plate and a clamping plate;

FIG. 7 is a schematic view showing the installation state of the slot connecting plate and the clamping plate;

FIG. 8 is a schematic view of a hand wheel operating mechanism;

FIG. 9 is a schematic view of a hand wheel mechanism in a disassembled configuration;

fig. 10 is a schematic view of the structure of the upper stage.

Fig. 11 is a schematic view of the structure of the slide plate.

Fig. 12 is a schematic top view of the slider.

1-bed board, 2-guardrail, 3-hand wheel, 4-support board, 5-lifting rod, 6-base, 7-rolling tube, 8-rolling shaft, 9-bolt structure, 11-frame I, 12-conveyor belt, 13-rolling shaft baffle, 14-rotating shaft I, 15-gear I, 16-rack, 17-linear sliding mechanism, 18-lead screw, 19-nut, 20-compression spring, 21-frame II, 22-upper rack, 23-double-head clutch teeth I, 24-clutch teeth II, 25-rear push rod, 26-front push rod, 27-buffer groove, 28-tubule, 29-connecting pin, 30-supporting board, 31-groove connecting board, 32-clamping board, 33-notch, 34-bevel groove, 35-sharp corner structure, 36-long circular hole IV, 41-sliding rail, 42-sliding plate, 43-rectangular hole I, 44-square hole II, 45-inserting plate, 46-circular plate, 91-guide plate, 92-plug pin, 93-handle, 94-long circular hole I, 95-long circular hole II, 96-shaft I and 97-shaft pin I.

Detailed Description

The technical scheme of the utility model is described below with reference to the accompanying drawings 1-12, a stretcher cart for passing a bed comprises a cart frame, a bed board 1 and a hand wheel operating mechanism, the bed board 1 is arranged above the cart frame, the bed board comprises a frame I11, rolling tubes 7 are uniformly arranged in the frame I11, the directions of the rolling tubes 7 are consistent with the length direction of the bed board, each row of rolling tubes form a rolling tube group, a conveying belt 12 is sleeved outside the rolling tube group, the surface of the conveying belt 12 forms an upper supporting surface of the bed board, the rolling tubes are supporting parts of the conveying belt, the body of a patient is supported by the conveying belt surface, the patient on the bed board can conveniently move transversely in the width direction of the bed board, and hard injuries can not be caused; the bed board lower extreme passes through sharp glide machanism 17 and connected with the frame, but the horizontal sideslip of bed board, hand wheel operating device set up on frame upper portion, it includes hand wheel 3, pivot I14 is parallel with the pipe that rolls, pivot I passes through bearing and connected with the frame, it is rotatable, I fixedly connected with gear I15 in pivot, the fixed rack 16 that is provided with of bed board lower extreme, gear I15 is connected with the meshing of rack 16, hand wheel 3 is connected with I transmission in pivot, rotatory hand wheel drives pivot I rotation to it is rotatory to drive I rotation of gear, and then drive the rack, the bed board is at bed board width direction displacement, the bed board of being convenient for is close to the sick bed center, make things convenient for patient to shift.

Linear glide machanism 17 be slide rail slip table module, totally two sets ofly, set up on the width direction of bed board, perpendicular with pivot I, it includes slider, slide rail 41 and bed board bottom fixed connection, slider and frame upper end fixed connection, the bed board passes through slide rail slip table module and connected with the frame, can follow the width direction of bed board and slide, linear glide machanism is as the spacing and the supporting component of bed board.

As shown in the attached figure 1, the frame comprises a base 6, an upper rack 22, a support plate 4 and a lifting rod, wherein the support plate 4 is arranged in front of and behind the base, the upper end of the support plate is hinged with the bottom of the upper rack 22, the lower end of the support plate is hinged with the base 6, the lower end of the lifting rod 5 is hinged with the base 6, and the upper end of the lifting rod is hinged with the upper rack; the hand wheel operating mechanism is arranged on the upper rack, and further comprises a lead screw 18 and a nut 19, the lead screw 18 is in threaded connection with the nut 19, the nut 19 is hinged to the upper end of the lifting rod, the lead screw is connected with the upper rack through a bearing and is rotatable, the lead screw and the first coaxial line of the rotating shaft drive the nut 19 to move back and forth along the lead screw through rotating the lead screw, the lifting rod is driven to lift, and the lifting of the bed board is achieved.

Further, a supporting plate 30 is fixedly arranged below the bed plate, a rack is fixedly arranged at the lower end of the supporting plate 30, and a sliding rail is parallel to the rack and fixedly arranged at the lower end of the supporting plate 30.

As shown in the attached drawing 8, the hand wheel is connected with a push rod, the push rod and a lead screw are coaxial, the lead screw is a hollow tube with external threads, the lead screw is sleeved outside the push rod, the maximum diameter of the push rod is smaller than the inner diameter of the lead screw, the push rod penetrates through the inner cavity of the lead screw and can move back and forth along the axis direction of the lead screw, the tail end of the push rod is fixedly connected with the central part of the hand wheel, double-end clutch teeth I23 are fixedly arranged at the front end of the push rod, clutch teeth II 24 are arranged at the tail end of the rotating shaft I and the front end of the lead screw, and the clutch teeth I and the clutch teeth II 24 form a jaw clutch structure.

When the push rod moves forwards, the front part of the double-end clutch tooth I23 is in involution scarf joint with the clutch tooth II 24 at the rear end of the rotating shaft I, meanwhile, the double-end clutch tooth I23 is separated from the clutch tooth II 24 at the end part of the screw rod, and the rotating shaft I rotates by rotating the push rod, so that the transverse displacement driving force transmission of the bed plate can be realized; when the pushing rod moves backwards, the rear part of the double-end clutch tooth I23 is connected with the front-end clutch tooth II 24 of the screw rod, the double-end clutch tooth I23 is separated from the clutch tooth II 24 at the end part of the rotating shaft I, the screw rod rotates by rotating the pushing rod, so that the screw nut 19 is driven to move forwards and backwards, and the lifting operation of the frame can be realized.

Further, the hollow setting in rear end of pivot I, the anterior of catch bar can insert pivot I, helps the accurate butt joint of double-end separation and reunion tooth I23 and the separation and reunion tooth II 24 of I front end of pivot.

As shown in fig. 8 and fig. 10, a sliding groove is arranged on the upper portion of the upper rack, a sliding plate 42 is arranged on the sliding groove, the sliding plate 42 is horizontally arranged, two side edges of the sliding plate are in sliding contact with the sliding groove, the sliding groove is parallel to the rotating shaft i and the bed plate, an inserting plate 45 is fixedly arranged on the sliding plate 42, the inserting plate 45 is perpendicular to the sliding plate, a rectangular hole i 43 is arranged at the front end of the sliding plate, the rectangular hole i 43 is perpendicular to the rotating shaft i, the sliding plate can move back and forth along the sliding groove, a circular plate 46 is fixedly arranged on the double-end clutch tooth i 23, the circular plate 46 is perpendicular to the pushing rod, the circle center of the circular plate is arranged on the central axis of the pushing rod, the circular plate partially penetrates through the rectangular hole i 43 and is in movable contact with the rectangular hole i 43, the width of the rectangular hole i 43 is slightly larger than the thickness of the circular plate, the pushing rod can move back and forth, the circular plate penetrating through the rectangular hole i 43 can drive the sliding plate to move back and forth, a hole is arranged on the edge of the rack or the supporting plate 30 as a limiting hole, the inserting plate is movably contacted with the limiting hole, when the double-head clutch tooth I23 moves towards the screw rod, the circular plate drives the sliding plate to move in the same direction, the inserting plate is inserted into the limiting hole at the lower end of the bed plate in an undisplaced state to lock the bed plate and the rack so as to prevent the bed plate from sliding left and right, when the push rod drives the double-end clutch tooth I23 to move back to the screw rod, the inserting plate is far away from the limiting hole, when the double-end clutch tooth I23 is matched with the rotating shaft I, the inserting plate can completely leave the limiting hole, the rack or the supporting plate is not limited by the inserting plate at the moment, the push rod is rotated to drive the gear I to rotate, thereby driving the rack and the bed board to move transversely, the end part of the inserting plate is in sliding friction with the rack or the side edge of the supporting plate, the end part of the inserting plate is limited, the sliding plate fixedly connected with the sliding plate is limited, the push rod cannot be pulled back at the moment, only the bed plate resets, and when the inserting plate can be inserted into the limiting hole, the push rod can be pulled back to move towards the lead screw.

Furthermore, the sliding plate is further provided with a square hole II 44, the square hole II 44 is used for avoiding the gear I, and the sliding plate is prevented from contacting with the gear I.

Furthermore, a compression spring 20 is arranged between the hand wheel and the upper rack, and the compression spring 20 is sleeved on the push rod; the push rod comprises a front push rod 26 and a rear push rod 25, the front push rod and the rear push rod are coaxially arranged and are connected through a coupler, double-end clutch teeth I23 are fixed at the front end of the front push rod, a hand wheel is fixedly connected at the rear end of the rear push rod, the front push rod is a round tube, two triangular buffer grooves 27 are arranged on the symmetrical side of the tail end of the front push rod, one side of each triangle is vertical, the opposite angle of the side faces to the direction of the rear push rod, a thin tube 28 is fixed at the front end of the rear push rod, the outer diameter of the thin tube 28 is smaller than the inner diameter of the round tube, the thin tube 28 can be inserted into the round tube, a shaft pin hole is formed in the front end of the thin tube, a connecting pin 29 is inserted into the shaft pin hole, after the thin tube is inserted into the round tube, the connecting pin 29 penetrates through the buffer grooves 27 and the shaft pin hole, the length of the connecting pin 29 is smaller than the outer diameter of the round tube and larger than the outer diameter of the thin tube, the rear push rod moves forwards, the connecting pin moves forwards to the vertical side position of the triangular buffer groove, after the rear push rod is butted with the rotating shaft I, can control free rotation, avoid the rigid butt joint of double-end separation and reunion tooth I23 and II 24 of the separation and reunion tooth of I tip of pivot, freely misplace the scarf joint when realizing the butt joint.

As shown in the attached drawing 4, the bed board both sides still be provided with guardrail 2, guardrail 2 includes II 21 square frames, the equipartition is arranged and is provided with the pipe that rolls in II 21 square frames, roll the pipe direction unanimous with bed board length direction, the ascending pipe that rolls of guardrail width direction constitutes the pipe group that rolls, roll pipe group overcoat and be equipped with the conveyer belt, II lower extremes of frame articulated on one side of I11 frames, the avris upset of bed board can be followed to the guardrail, the guardrail is put at ordinary times, becomes combination bed board with the bed board.

As shown in the attached drawing 5, the guardrail is connected and positioned with the bed board through the bolt structure 9, the bolt structure is arranged on one side of the frame II and comprises a bolt 92, a guide plate 91 and a handle 93, the frame I and the frame II are both formed by processing stainless steel pipes, a pin hole is formed in one side pipe body of the frame I and the frame II, when the guardrail is perpendicular to the bed board, the two pin holes are aligned, the bolt 92 can be simultaneously inserted into the two pin holes, the positioning guardrail is connected with the bed board, a roller baffle 13 is arranged in the frame II, the roller baffle 13 is perpendicular to the side pipe body of the frame I, a shaft I96 is fixedly arranged on the roller baffle, the shaft I96 penetrates through the roller baffle, the guide plate is vertically arranged and is parallel to the roller baffle, a vertical long round hole I94 and a horizontal long round hole II 95 are arranged on the plate body of the guide plate, the lower end of the roller baffle is fixedly connected with the upper end of the bolt, the shaft I96 penetrates through the long round hole I94, the guide plate is in sliding contact with the shaft I96 through the long round hole I94 and can move up and down, one end of the handle 93 is hinged to the outer end of the shaft I96, a shaft pin is arranged in the middle of the handle 93 and is in sliding contact with the long round hole II 95, the other end of the handle is operated, the handle is turned over up and down along the shaft I96, the shaft pin slides left and right in the long round hole II 95, and the guide plate drives the inserting pins to move up and down. When the other end of the handle is moved to the highest point, the bolt leaves the pin holes of the side tube body of the frame I, the guardrail can be turned over at the moment, when the guardrail is perpendicular to the bed plate, the other end of the handle is operated, and the end part of the bolt can be simultaneously inserted into the two pin holes to fix the guardrail and the bed plate.

The rolling pipe is a round stainless steel pipe, the frame I and the frame II are internally and fixedly provided with a groove position connecting plate 31, the groove position connecting plate 31 is perpendicular to the rolling pipe, and the rolling pipe is connected with the groove position connecting plate 31 through a rolling shaft 8.

As shown in fig. 6 and 7, the roller 8 is connected to the frame i or the frame ii through a fastening mechanism, the fastening mechanism includes a slot connecting plate 31 and a locking plate 32, two ends of the slot connecting plate 31 are fixedly connected to the frame i or the frame ii, the slot connecting plate 31 is provided with notches 33 with upper openings at intervals, the notches 33 are U-shaped, the end of the roller can be placed in the U-shaped notches, the depth of the notches is greater than the diameter of the roller, the width of the notches is slightly greater than the diameter of the roller, the locking plate 32 is provided with bevel grooves 34 with the same number and position as the notches, the depth of the groove bottoms is greater than or equal to the depth of the notches of the slot connecting plate 31, the width of the groove bottoms is greater than the width of the notches, one side groove edge of the upper ends of the bevel grooves 34 is a protruding structure facing to the other side, and if the bevel grooves 34 are inclined to the right side, the left groove edge of the upper ends is a sharp angle structure 35 facing to the right side; screens board 32 be provided with the IV 36 of horizontally slotted hole and be used for passing the rivet, screens board 32 passes through the rivet and is connected with trench connecting plate 31, the IV 36 horizontal direction displacement in slotted hole can be followed to screens board 32, when screens board 32 displacement to the left side, the closed angle structure 35 of bevel connection groove 34 does not shelter from the notch of trench connecting plate 31, the U-shaped notch can be put into to the roller bearing or is taken out from the notch, after displacement screens board 32 to the right side, closed angle structure and the intraoral roller bearing upper portion contact in notch, can die the roller bearing card spacing, avoid the roller bearing to deviate from.

Further, still include the roller baffle, the roller baffle is fixed to be set up at the both ends of rolling pipe for spacing roller tip, the board body of trench connecting plate 31 and screens board 32 highly all be less than the height of roller baffle, trench connecting plate 31 one side and the contact of roller baffle in the outside, another side and the contact of screens board 32, screens board 32 passes through fix with rivet on trench connecting plate 31.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principles of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention without creative work.

Claims

1. A stretcher vehicle for passing through bed is characterized in that: the bed plate is arranged above the frame and comprises a frame I, rolling pipes are uniformly distributed in the frame I, the direction of the rolling pipes is consistent with the length direction of the bed plate, each row of rolling pipes form a rolling pipe group, a conveying belt is sleeved outside the rolling pipe group, the surface of the conveying belt forms an upper supporting surface of the bed plate, the rolling pipes are supporting parts of the conveying belt, and the body of a patient is supported by the surface of the conveying belt; the bed board lower extreme passes through sharp glide machanism and connected with the frame, but the horizontal sideslip of bed board, hand wheel operating device set up on frame upper portion, it includes hand wheel, pivot I is parallel with the pipe that rolls, pivot I passes through bearing and connected with the frame, rotatable, I fixedly connected with gear I of pivot, the fixed rack that is provided with of bed board lower extreme, gear I is connected with the rack toothing, the hand wheel is connected with I transmission of pivot, rotatory hand wheel drives pivot I rotation to it is rotatory to drive gear I, and then drives rack, bed board at bed board width direction displacement.

2. A stretcher vehicle as claimed in claim 1, wherein: the linear sliding mechanism is a sliding rail sliding table module, is totally two sets of, is arranged in the width direction of the bed plate, is perpendicular to the rotating shaft I, comprises a sliding block and a sliding rail, is fixedly connected with the bottom of the bed plate, is fixedly connected with the upper end of the frame, is connected with the frame through the sliding rail sliding table module, and can slide along the width direction of the bed plate.

3. A stretcher vehicle as claimed in claim 1, wherein: the first gear and the rack are arranged in two groups, the front side and the rear side of the bed board are arranged respectively, and when the rotating shaft I rotates, the first gear and the second gear can be synchronously driven to rotate.

4. The stretcher vehicle according to claim 1, wherein: the frame comprises a base, an upper rack, a supporting plate and a lifting rod, wherein the front part and the rear part of the supporting plate are respectively provided with one supporting plate, the upper end of the supporting plate is hinged with the bottom of the upper rack, the lower end of the supporting plate is hinged with the base, the lower end of the lifting rod is hinged with the base, and the upper end of the lifting rod is hinged with the upper rack; the hand wheel operating mechanism is arranged on the upper rack and also comprises a lead screw and a nut, the lead screw is in threaded connection with the nut, the nut is hinged with the upper end of the lifting rod, the lead screw is connected with the upper rack through a bearing and can rotate, the lead screw and the rotating shaft I are coaxial, and the lead screw is rotated to drive the nut to move back and forth along the lead screw and drive the lifting rod to lift and realize the lifting of the bed board; the bed board below fixedly be provided with the layer board, the rack is fixed to be set up at the layer board lower extreme, the slide rail is parallel with the rack, fixed setting is at the layer board lower extreme.

5. A stretcher vehicle as claimed in claim 1, wherein: the hand wheel is connected with a push rod, the push rod and a lead screw are coaxial, the lead screw is a hollow tube with external threads, the lead screw is sleeved outside the push rod, the maximum diameter of the push rod is smaller than the inner diameter of the lead screw, the push rod penetrates through an inner cavity of the lead screw and can move back and forth along the axial direction of the lead screw, the tail end of the push rod is fixedly connected with the central part of the hand wheel, double-end clutch teeth I are fixedly arranged at the front end of the push rod, clutch teeth II are arranged at the tail end of a rotating shaft I and the front end of the lead screw, the clutch teeth I and the clutch teeth II form a jaw clutch structure, furthermore, the tooth end parts of the clutch teeth I and the clutch teeth II are in a sharp tooth shape, and when the clutch teeth I and the clutch teeth II are aligned, the impact is small; the rear end of the rotating shaft I is arranged in a hollow mode, and the front portion of the push rod can be inserted into the rotating shaft I.

6. The stretcher vehicle of claim 4, wherein: go up rack upper portion and be provided with the spout, spout department is provided with the slide, the slide level sets up, its both sides along with spout sliding contact, spout and pivot I, the bed board is parallel, the fixed picture peg that is provided with on the slide, the picture peg is perpendicular with the slide, the slide front end is provided with rectangular hole I, rectangular hole I is perpendicular with pivot I, the slide can be followed the spout around the displacement, the fixed plectane that is provided with of double-end separation and reunion tooth, the plectane is perpendicular with the catch bar, and the centre of a circle setting of plectane is on the axis of catch bar, plectane part passes long rectangular hole I, with I movable contact in rectangular hole, the width in rectangular hole I slightly is greater than the thickness of disc, displacement around the catch bar, then the plectane that passes rectangular hole I can drive displacement around the slide, rack or layer board border be provided with a hole groove as spacing hole, picture peg and spacing hole movable contact.

7. A stretcher vehicle as claimed in claim 1, wherein: a compression spring is arranged between the hand wheel and the upper rack and sleeved on the push rod; the catch bar include preceding push rod, back push rod, preceding push rod sets up with back push rod coaxial line, through the coupling joint, the fixed double-end separation and reunion tooth I of front end of preceding push rod, the rear end fixed connection hand wheel of back push rod, preceding push rod be the pipe, its tail end symmetry side is provided with two triangle-shaped dashpots, triangle-shaped limit is vertical, the relative angle in this limit is towards back push rod direction, the front end of back push rod is fixed with the tubule, the external diameter of tubule is less than the internal diameter of pipe, the tubule can insert the pipe, the front end of tubule is provided with the axle pinhole, axle pinhole department plug-in connection round pin, after the tubule inserted the pipe, the connecting pin passed the dashpot, the axle pinhole, the length of connecting pin is less than the external diameter of pipe, is greater than the external diameter of tubule.

8. A stretcher vehicle as claimed in claim 1, wherein: bed board both sides still be provided with the guardrail, the guardrail includes square frame II, the equipartition is arranged in frame II and is provided with the pipe that rolls, the pipe direction that rolls is unanimous with bed board length direction, the pipe that rolls on the guardrail width direction constitutes the pipe group that rolls, the pipe group overcoat that rolls is equipped with the conveyer belt, II lower extremes of frame articulated on one side of frame I, the avris upset of bed board can be followed to the guardrail, the guardrail is put at ordinary times, becomes combination bed board with the bed board group.

9. A stretcher vehicle as claimed in claim 8, wherein: further, the guardrail is connected with the bed board through a bolt structure for positioning, the bolt structure is arranged on one side of a frame II and comprises a bolt, a guide plate and a handle, the frame I and the frame II are both formed by processing stainless steel pipes, pin holes are formed in side pipe bodies of the frame I and the frame II, when the guardrail is perpendicular to the bed board, the two pin holes are aligned, the bolt can be simultaneously inserted into the two pin holes, the positioning guardrail is connected with the bed board, a roller baffle is arranged in the frame II and is perpendicular to the side pipe body of the frame I, a shaft I is fixedly arranged on the roller baffle and penetrates through the roller baffle, the guide plate is vertically arranged and is parallel to the roller baffle, a vertical long round hole I and a horizontal long round hole II are formed in the plate body of the guide plate, the lower end of the roller baffle is fixedly connected with the upper end of the bolt, the shaft I penetrates through the long round hole I, and the guide plate is in sliding contact with the shaft I through the long round hole I, the handle is hinged to the outer end of the shaft I, a shaft pin is arranged in the middle of the handle and in sliding contact with the long round hole II, the other end of the handle is operated, the handle is turned over up and down along the shaft I, the shaft pin slides left and right in the long round hole II, and the guide plate drives the plug pins to move up and down.

10. A stretcher vehicle as claimed in claim 8, wherein: the roller is connected with the frame I or the frame II through a buckling mechanism, the buckling mechanism comprises a groove position connecting plate and a clamping plate, two ends of the groove position connecting plate are fixedly connected with the frame I or the frame II, a groove opening with an upper opening is formed between the groove position connecting plates, the groove opening is U-shaped, the end part of the roller can be placed in the U-shaped groove opening, the depth of the groove opening is larger than the diameter of the roller, the width of the groove opening is slightly larger than the diameter of the roller, the clamping plate is provided with bevel grooves with the same number and position as the groove openings, the depth of the groove bottom is larger than or equal to the depth of the groove opening of the groove position connecting plate, the width of the groove bottom is larger than the width of the groove opening, one side groove edge of the upper end of each bevel groove is of a convex structure facing to the other side, and if the bevel groove is inclined towards the right side, the left groove edge of the upper end is of a sharp angle structure facing to the right side; the screens board be provided with horizontally slotted hole IV and be used for passing the rivet, the screens board passes through the rivet and is connected with the trench connecting plate, the IV horizontal direction displacement of slotted hole can be followed to the screens board, when the screens board displacement to the left side, the closed angle structure in inclined groove does not shelter from the notch of trench connecting plate, the U-shaped notch can be put into to the roller bearing or is taken out from the notch, behind the displacement screens board to the right side, closed angle structure and the intraoral roller bearing upper portion contact in groove.