CN210991236U - Fixing device for stretcher stretching out - Google Patents

Abstract

The utility model discloses a fixing device for stretcher stretches out, through set up stretcher locking structure on the main slide, when the stretcher was pinned by stretcher locking structure, partial stretcher stretches out towards detection device main slide, like this, the distance of traveling of main slide has been prolonged in the change mutually, and then has prolonged the detection range of main slide position makes the wounded that is located on the stretcher can obtain the inspection on a maximum range, makes the doctor can confirm wounded's damage position and harm degree in the short time, simultaneously, makes the doctor establish the exact medical treatment means in the shortest time, furthest has protected the wounded, reduces because of can not in time establish the condition that the wounded that damage position and damage degree caused can not in time treat.

Description

Fixing device for stretcher stretching out

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to a fixing device for stretcher stretches out.

Background

An ambulance is a medical relief vehicle commonly used in daily life of people, is mainly applied to the treatment of critical accidents, and generally can carry out emergency treatment on wounded. When people are injured by the inside of the body, the injured person is generally scanned through a vehicle-mounted CT on an ambulance, and the process is generally carried out through the following embodiments, 1, the injured person is lifted down and moved to a scanning sickbed of related equipment to carry out body scanning examination; 2. the head of the wounded is moved on the stretcher to extend out of the stretcher, the head is fixed by adopting an extension plate or a head bracket mechanism, and then the stretcher is moved to obtain a scanning bed of related equipment to carry out scanning examination on all parts of the body. The above schemes have the following disadvantages that in the scheme 1, the wounded needs to move for the second time, so that the inspection time is delayed, and meanwhile, the injury of the wounded is increased; in the case of the protocol 2, it is difficult to examine the heart, the chest and the like after examining the head. As can be seen from the above, the conventional vehicle-mounted CT is difficult to satisfy the full-body examination of the injured person without moving the injured person.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a fixing device for stretcher stretches out, which includes: the base is provided with a main slideway capable of doing linear motion; and the stretcher locking structure is arranged on the main slideway, and when the stretcher is locked by the stretcher locking structure, part of the stretcher extends out of the main slideway towards the detection device.

Further, still include vice slide, vice slide is used for supporting and fixed stretcher stretches out the part of main slide to drive under the exogenic action the stretcher makes rectilinear motion, after the stretcher is locked by stretcher locking structure, the stretcher follows the motion of main slide.

Further, an auxiliary slideway guide rail is arranged on the base; the auxiliary slideway comprises an auxiliary slideway sliding block and an auxiliary slideway main body, the auxiliary slideway main body comprises an auxiliary slideway bottom plate, and a first clamping piece and a second clamping piece which are arranged on the auxiliary slideway bottom plate, and the first clamping piece and the second clamping piece are matched with each other and used for clamping a first stretcher part entering between the first clamping piece and the second clamping piece; the auxiliary slideway bottom plate is fixed on the auxiliary slideway slide block; the auxiliary slide rail is matched with the auxiliary slide slider, so that the auxiliary slide slides linearly along the auxiliary slide rail.

Further, the first clamping piece comprises a straight plate fixed on the auxiliary slideway bottom plate, and a first elastic piece is fixed on one plate surface of the straight plate; the second clamping piece comprises a folding plate fixed on the auxiliary slideway bottom plate, a second elastic piece is arranged on one plate surface of the folding plate, and a third elastic piece is fixed on the second elastic piece or the folding plate; the first elastic piece and the third elastic piece are arranged oppositely; the distance between the first clamping piece and the second clamping piece is adjustable.

Further, the first elastic piece and the third elastic piece are rubber pieces made of rubber materials; the second elastic piece is an elastic piece or an elastic pipe piece with a certain radian or a certain broken line type.

Further, be provided with the main slide guide rail on the base, the main slide includes main slide slider and main slide main part, the main slide slider is fixed main slide main part below, the main slide slider with the main slide guide rail cooperatees, makes the main slide follow the main slide guide rail is linear motion.

Further, the main slideway guide rail and the auxiliary slideway guide rail are the same guide rail.

Further, install electromagnet on the main slide, install the absorption piece on the vice slide, electromagnet with the absorption piece cooperatees, makes main slide with adsorb or loosen between the vice slide.

Furthermore, an open through groove is formed on the auxiliary slideway bottom plate, and an ejecting part is placed in the open through groove; an ejection metal plate is hinged to one side of the auxiliary slide way sliding block through an ejection metal plate shaft, one end of the ejection metal plate is abutted against the ejection piece, the ejection metal plate is also connected with the auxiliary slide way bottom plate through an ejection metal plate spring, and at the moment, the end of the ejection piece extends out of the opening through groove and is higher than the auxiliary slide way bottom plate; a first microswitch is installed at the bottom of the main slide way and matched with the ejection metal plate to realize power-off of the electromagnetic chuck.

Further, be close to detection device on the main slide guide rail or main slide guide rail tip be provided with first dog on the base, first dog is used for preventing vice slide slides, simultaneously, under the exogenic action continuation motion main slide can promote the stretcher to continue the motion, thereby, first stretcher part breaks away from the centre gripping between first holder and the second holder.

Furthermore, a front micro switch is arranged on the base close to the detection device and is matched with a front touch block arranged at the bottom of the main slideway so as to realize the position detection of the main slideway.

Furthermore, the stretcher locking structure is 3, and is arranged in a delta shape.

Further, the stretcher locking structure comprises a clamping plate with an opening and a notch and a hook plate, wherein the clamping plate is fixed on the main slideway; the hook-shaped plate penetrates through the notch and is hinged with the clamping plate through a hook-shaped plate shaft, one end of the hook-shaped plate is matched with the clamping plate to clamp the second stretcher part, and the other end of the hook-shaped plate penetrates through the main slideway and is connected with the main slideway through a hook-shaped plate spring.

Furthermore, the end part of the hook plate penetrating through the main slideway is also connected with one end part of a connecting rod, the other end of the connecting rod is connected with a connecting rod handle, and the connecting rod handle is hinged to the bottom of the main slideway through a connecting rod shaft.

Furthermore, the end part of the hook plate penetrating through the main slideway is connected with one end part of a connecting rod through a spring tension adjusting bolt.

Further, a driving motor is arranged on the base and connected with a lead screw shaft, and the lead screw shaft is fixed through a fixed lead screw seat and a supporting lead screw seat; the bottom of the main slide way is provided with a lead screw slide block, a lead screw shaft penetrates through the lead screw slide block, and the main slide way moves linearly under the driving of a driving motor.

Furthermore, the main slide way guide rails are two parallel guide rails, and the two auxiliary slide ways are respectively matched with the two guide rails through auxiliary slide way sliding blocks; the main slide way slide blocks are at least two and are respectively matched with the two guide rails.

Further, the tip of main slide forms two vice slide breachs, works as main slide with vice slide adsorbs when together through electromagnet and adsorption block, two vice slide imbeds respectively vice slide breach.

Further, keep away from detection device still be provided with the gyro wheel on the base, the gyro wheel makes the main slide is convenient for slide, and makes the main slide slides stably.

Further, the main slideway main body comprises a main slideway bottom plate and main slideway side plates arranged at two sides of the main slideway bottom plate; one end of the main slideway main body is arranged in a horn mouth shape.

Furthermore, a rear microswitch is also arranged on the base far away from the detection device and is matched with a rear contact block arranged at the bottom of the main slideway; and a second stop block is arranged on the main slide rail far away from the detection device or on the base close to the end part of the main slide rail, and the stop block is used for preventing the main slide rail from sliding out of the guide rail.

This neotype above-mentioned technical scheme compares prior art and has following advantage:

(1) this neotype a fixing device for stretcher stretches out, through set up stretcher locking structure on the main slide, when the stretcher is pinned by stretcher locking structure, partial stretcher stretches out towards detection device main slide, like this, the distance of traveling that has prolonged main slide has turned into mutually, and then has prolonged the detection range of main slide position makes the wounded that is located on the stretcher can obtain the inspection on a maximum scale, makes the doctor can confirm wounded's injury position and harm degree in the short time, simultaneously, makes the doctor establish the exact medical care means in the shortest time, furthest's protection wounded, the reduction is because of can not in time establish the condition that the wounded that injury position and damage degree caused can not in time treat.

(2) This neotype a fixing device for stretcher stretches out through setting up vice slide, and after the stretcher was pinned by stretcher locking structure, the stretcher was stretching out behind the main slide, vice slide is used for supporting and fixed stretcher, makes the stretcher follow more stable during the main slide motion.

(3) According to the novel fixing device for stretcher stretching out, the auxiliary slideway bottom plate is provided with the two clamping pieces, so that the first stretcher part of the stretcher is pushed into the space between the two clamping pieces by external force, the first stretcher part is clamped by the two clamping pieces, and the two clamping pieces are simple in structure and convenient to operate; furthermore, the opposite surfaces of the clamping pieces are provided with elastic pieces to increase the clamping force of the two clamping pieces; furthermore, an elastic sheet or an elastic pipe fitting is arranged on at least one clamping piece, so that the clamping force of the two clamping pieces is further increased; by including at least one of the clamping members with a folded plate, the inlet and/or outlet of both clamping members is/are of an enlarged configuration, making the first stretcher part easier to push in.

(4) According to the novel fixing device for extending the stretcher, the main slide rail and the auxiliary slide rail are the same, so that the device is simple in structure and convenient to use; install electromagnet on the main slide, install the absorption piece on the vice slide, electromagnet with the absorption piece cooperatees, makes main slide with adsorb or loosen between the vice slide, through this setting, can realize that the wounded is in the position of multiple detection, realizes wounded's inspection operation on the widest range, simultaneously, can accurate adjustment detect position, realizes the summit and detects.

(5) This novel a fixing device for stretcher stretches out, through setting up the opening logical groove, the liftout, ejecting panel beating and first micro-gap switch, when first stretcher part travels between two holders, under the exogenic action, continue to advance, and extrude the liftout, make the liftout follow opening logical groove downstream and then order about ejecting panel beating and use ejecting panel beating axle as the axle rotation action, and then touch first micro-gap switch, thereby first micro-gap switch signal spreads out and passes through the controller and then cut off the power supply of electromagnet, and then, vice slide loosens with the main slide, can realize automatic control, under the exogenic action, the first stretcher part of vice slide centre gripping and support the stretcher and continue to slide. By the actions, the stretcher extends out of the main slideway as much as possible, the maximum range detection is realized, and the stretcher slides continuously until the second stretcher part is locked by the stretcher locking structure; the stretcher locking structure is 3, is the setting of article font, makes the stretcher fixed more stable like this, simultaneously, when the part that the stretcher stretches out main slide loses the support of vice slide, also can be stable, realizes the needs that detect.

(6) The novel fixing device for stretcher stretching out is simple in the process of clamping the second single-compartment component in the stretcher locking structure through the matching of the clamping plate, the hook-shaped plate shaft and the hook-shaped plate spring, the second stretcher component highly matched with the opening is pushed into the second stretcher component accommodating opening matched between the clamping plate and the hook-shaped plate in the moving process of the stretcher, and the second stretcher component is locked under the action of the elastic force of the hook-shaped plate spring; meanwhile, the stretcher is provided with the connecting rod and the railing handle, the connecting rod handle is hinged to the bottom of the main slideway through a connecting rod handle shaft, the connecting rod handle is driven through external force, the connecting rod is driven to pull the hook plate to loosen the second stretcher part, so that the stretcher is separated from the main slideway, and the operation is convenient; furthermore, the spring tension adjusting bolt is arranged to adjust the elastic force of the hook-shaped plate spring, so that the second stretcher part is locked and unlocked more conveniently and more labor-saving.

(7) The novel fixing device for stretcher stretching out prevents the auxiliary slideway from sliding out of the guide rail by arranging the first stop block; by arranging the auxiliary slideway notch, the auxiliary slideway and the main slideway are in order, so that the whole structure is simple, the use and maintenance are convenient, the stroke of the main slideway cannot be shortened, and the large-range detection of a small space (vehicle-mounted equipment) can be realized to the maximum extent; the main slideway is prevented from sliding out of the guide rail by arranging the second stop block; through setting up back micro-gap switch, can combine the controller to realize driving motor control, realize the accurate control of main slide stroke.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the novel stretcher extension fixing device;

FIG. 2 is a schematic view of the base with the secondary and primary runners removed and the structural components on the base;

FIG. 3 is a schematic view of the bottom of the main runner and structural components on the bottom of the main runner;

fig. 4 is a schematic structural view of the novel stretcher locking structure;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a schematic view of the hook plate in the locking configuration of the stretcher of the present invention;

FIG. 7 is a schematic view of the construction of the secondary runner (not including the third resilient member);

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a sectional view A-A of FIG. 8;

fig. 10 is a schematic structural diagram of the positions of the ejection sheet metal and the first microswitch;

FIG. 11 is a schematic view of the second clamping member (excluding the third elastic member);

FIG. 12 is a perspective view of the secondary slide;

fig. 13 is a schematic view of the configuration of the upper main ramp of the stretcher preparation;

fig. 14 is a schematic view of a first litter part to secondary slide configuration;

fig. 15 is a schematic view of the second litter part in a litter locked configuration;

fig. 16 is a schematic view of the first litter part after it has been detached from the secondary chute;

the reference numbers in the figures denote: 1-a base; 2-a main slideway; 3-a stretcher locking structure; 4-an auxiliary slideway; 5-auxiliary slideway guide rails; 6-a first stretcher part; 7-a main slideway rail; 8-an electromagnetic chuck; 9-ejection; 10-ejecting a sheet metal shaft; 11-ejecting a metal plate; 12-ejecting a sheet metal spring; 13-a first microswitch; 14-a first stop; 15-front micro-switch; 16-a second stretcher part; 17-a connecting rod; 18-a link handle; 19-link shaft; 20-spring tension adjusting bolt; 21-a main slide block; 22-a main runner body; 23-connecting rod fixing block; 24-a drive motor; 25-a screw shaft; 26-fixing a lead screw seat; 27-supporting a lead screw seat; 28-lead screw slide block; 29-screw fixation plate; 30-lead screw slide block fixing block; 31-a splint; 32-hook plate; 33-hook plate shaft; 34-hook plate spring; 35-a coupler; 36-secondary slide notch; 37-a roller; 38-rear microswitch; 39-a second stop; 40-a lifting device; 41-auxiliary slideway slide block; 42-a secondary slide body; 43-an adsorption block; 44-elongated holes; 45-wounded; 46-a stretcher; 221-a main chute floor; 222-main chute side plate; 223-bell mouth; 311-an opening; 312-a notch; 421-secondary slide floor; 422-a first clamp; 423-second clamp; 4211-open through groove; 4221-straight plate; 4222-a first elastic member; 4231-folding plate; 4232-a second elastic member; 4233-third elastic member.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. The embodiments in the present invention, and other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-16, the present embodiment discloses a stretcher extension fixture for a vehicle-mounted CT inspection device, in which the inspection device is generally referred to as the rotor of the CT. The fixing device comprises a base 1, wherein a main slide way 2 capable of making linear motion is arranged on the base 1, the main slide way 2 is used for placing an injured person 45 or a stretcher 46, and a patient 45 is placed on the stretcher 46; the structure of the base 1 is not specifically limited, and may be a structure independent on the lifting device 40, or may be a top of the lifting device 40, the surface of the base may be a plate surface, or a mesh surface, or similarly, a plate surface having a certain shape, which is determined according to the space and structure of the vehicle-mounted CT, and preferably has a plate surface structure with a certain plane, the structure of the main slideway 2 is not specifically limited, in this embodiment, the main slideway 2 includes a main slideway sliding block 21 and a main slideway main body 22, the main slideway sliding block 22 is fixed below the main slideway main body 22, the base 1 is provided with a main slideway guide rail 7, the main slideway sliding block 22 is matched with the main slideway guide rail 7, the main slideway guide rail 7 has various structures, such as various profiles, preferably i-shaped profiles, and the main slideway sliding block 22 preferably includes a structure capable of being embedded in a groove of an i-shaped profile, the base 1 is provided with a driving motor 24, the output end of the driving motor 24 is connected with a screw shaft 25 through a coupler 35, the screw shaft 25 is fixed through a fixed screw seat 26 and a supporting screw seat 27, the bottom of the main slideway 2 is provided with a screw fixing plate 29 and a slider fixing block 30, a screw slider 28 is fixed between the screw shaft 25 and the supporting screw seat, the screw shaft 25 penetrates through the screw slider 28, and under the driving of the driving motor 24, the screw shaft 25 drives the screw slider 28 to further drive the main slideway 2 to linearly slide along the main slideway guide rail 7; the main slideway main body 22 comprises a main slideway bottom plate 221 and main slideway side plates 222 arranged at two sides of the main slideway bottom plate 221, the inlet end of the main slideway main body 22 is arranged in a bell mouth shape, and the main slideway bottom plate 221 at the inlet end is obliquely arranged into an inclined plane; a stretcher locking structure 3 is provided on the main chute bottom plate 221, and when the stretcher 46 is locked by the stretcher locking structure 3, a part of the stretcher protrudes out of the main chute 2 toward the detection device.

Further, still include vice slide 4, vice slide 4 is used for supporting and fixed stretcher 46 stretches out the part of main slide 2 to drive under the exogenic action stretcher 46 makes rectilinear motion, and after stretcher 46 was locked by stretcher locking structure, stretcher 46 followed main slide 4 moves. Further, an auxiliary slideway guide rail 5 is arranged on the base 1, the auxiliary slideway guide rail 5 can be independently arranged, or can be the same guide rail as the main slideway guide rail 7, and preferably the two guide rails are the same guide rail; the auxiliary slideway 4 comprises an auxiliary slideway slide block 41 and an auxiliary slideway main body 42, the auxiliary slideway slide block 41 is matched with the structure of the auxiliary slideway guide rail 5, and the structure of the auxiliary slideway slide block can be consistent with or different from that of the main slideway slide block 21 as long as the auxiliary slideway slide block can slide on the guide rail; the auxiliary chute body 42 comprises an auxiliary chute bottom plate 421 and a first clamping member 422 and a second clamping member 423 arranged on the auxiliary chute bottom plate 421, the first clamping member 422 and the second clamping member 423 are matched to clamp the first stretcher part 6 between the first clamping member 422 and the second clamping member 423, the first clamping member 422 and the second clamping member 423 can be the same in structure or different in structure and can be interchanged with each other, and the first stretcher part 6 is a part which is arranged at the bottom of the stretcher 46 and is matched with the auxiliary chute, such as a stretcher roller, such as a vertical rod body and the like, preferably a stretcher roller; the auxiliary slide way bottom plate 421 is fixed on the auxiliary slide way slider 41; the auxiliary slide rail 5 is matched with the auxiliary slide slider 41, so that the auxiliary slide 4 slides linearly along the auxiliary slide rail 5.

Further, the first clamping member 422 includes a straight plate 4221 fixed on the bottom plate of the secondary slide way, a first elastic member 4222 is fixed on one plate surface of the straight plate 4221, the first elastic member 4222 is preferably made of a soft elastic material, such as rubber, a silica gel, etc., the shape of the first elastic member 4222 is not particularly limited, and a structure with a U-shaped or C-shaped cross section or the like is preferred, so as to facilitate the entry and exit of the first stretcher member 6, at least at the entry end, the first elastic member 4222 is arranged in an inclined plane and is fixed or bonded by a bolt; the second clamping member 423 includes a folding plate 4231 fixed on the secondary slideway bottom plate 421, the folding plate 4231 is preferably in a splayed or trapezoidal structure, a second elastic member 4232 is installed on one plate surface of the folding plate 4231, the second elastic member 4232 is a pipe formed by an elastic sheet or an elastic pipe with a certain radian or a folding line structure, and can be fixed by welding, preferably a U-shaped pipe with a folding line structure, a third elastic member 4233 is fixed on the second elastic member 4232 or the folding plate 4231, preferably the third elastic member 4233 is consistent with the first elastic member 4222 in structure and material, and similarly, in order to facilitate the entry and exit of the first stretcher part 6, at least at the entry end, the third elastic member 4233 is arranged in an inclined plane and is fixed or bonded by bolts; the first elastic member 4222 is arranged opposite to the third elastic member 4233; in order to adapt to the different first stretcher parts 6 entering between the first and second holders or to stabilize the clamping force between the first and second holders, the distance between the two being adjustable, preferably the fold plate 4231 forms a mounting plate on which the elongated hole 44 is formed, the distance between the first and second holders being adjustable by adjusting the fixing bolt between it and the secondary slide slider 41.

Further, install electromagnet 8 on main slide 2, electromagnet 8 is connected with the power, install on the vice slide 4 and adsorb piece 43, electromagnet 8 with adsorb the piece 43 and cooperate, make main slide 2 with adsorb or loosen between the vice slide 4.

Further, an open through groove 4211 is formed in the auxiliary chute bottom plate 421, an ejector 9 is placed in the open through groove 4211, the structure of the open through groove 4211 is not particularly limited, the cross section of the open through groove 4211 may be square, long strip, T-shaped, and the like, preferably, an inverted T-shape is adopted, and the structure of the ejector 9 is preferably T-shaped; an ejection sheet metal 11 is hinged to one side of the auxiliary slideway slide block 41 through an ejection sheet metal shaft 10, the structure of the ejection sheet metal 11 is not particularly limited, one end of the ejection sheet metal 11 is abutted to the ejection part 9, the ejection sheet metal 11 is also connected with the auxiliary slideway bottom plate 421 through an ejection sheet metal spring 12, and at the moment, the end of the ejection part 9 extends out of the open through groove 4211 and is higher than the auxiliary slideway bottom plate 421; first micro-gap switch 13 is installed to the bottom of main slide 2, first micro-gap switch 13 with ejecting panel beating 11 cooperatees, the state of ejecting panel beating spring 12 is relevant according to its position of being connected with ejecting panel beating 11, and it uses ejecting panel beating axle 10 as the border, and the state of ejecting panel beating spring 12 is tensile or compression, prefers it at compression state, and the hookup location is in the position that is close to micro-gap switch 13 promptly, and when first stretcher part 6 got into under the exogenic action between two holders and extrudees during ejecting 9, ejecting 9 atress downstream results in ejecting panel beating 11 ejecting panel beating axle 10 rotates to transmit the signal of its motion for first micro-gap switch 13, and then, first micro-gap switch 13 transmission signal realizes for the preferred single chip microcomputer control of controller the outage of electromagnetic chuck 8.

Further, a first stopper 14 is arranged on the main slideway guide rail 7 or the base 1 at the end of the main slideway guide rail 7 close to the detection device, the first stopper 14 is used for preventing the auxiliary slideway 4 from sliding, and meanwhile, the main slideway 2 which continues to move under the action of external force can push the stretcher 46 to continue to move, so that the first stretcher part 6 is separated from the clamping between the first clamping piece 422 and the second clamping piece 423, and the structure of the first stopper 14 is not specifically limited, can be mechanical limit, can be a block body with a certain shape, and is preferably mechanical limit.

Further, a front micro switch 15 is arranged on the base 1 close to the detection device, and is matched with a front touch block (not shown in the figure) arranged at the bottom of the main slideway 2, the front touch block can be a block body with a certain shape, and can be a first micro switch 13, when the first stretcher part 6 is separated from the clamping between the first clamping piece 422 and the second clamping piece 423, the stretcher continues to move, and after the front touch block of the front micro switch 15 is contacted, a single chip microcomputer is preferably selected by a controller to realize the power supply of the electromagnetic chuck, and at this time, the main slideway 2 and the auxiliary slideway 4 are adsorbed together; of course, after the front touch block of the microswitch 15 contacts, the controller can also control the limit position of the main slideway 2, namely control the driving motor to stop driving.

Further, the stretcher locking structure 3 is 3, and is arranged in a delta shape.

Further, the stretcher locking structure 3 includes a clamping plate 31 having an opening 311 and a notch 312, and a hook plate 32, the clamping plate 31 being fixed on the main chute 2; the hook plate 32 passes through the notch 312 and is hinged with the clamping plate 31 through a hook plate shaft 33, one end of the hook plate 32 is matched with the clamping plate 31 to clamp the second stretcher part 16, the other end of the hook plate 32 passes through the main slideway 2 and is connected with the main slideway 2 through a hook plate spring 34, the shape of the second unit price part 16 is preferably a cylindrical body, more preferably a cylinder, and the hook plate spring 34 is in a stretching state or a natural state.

Further, the end of the hook plate 32 passing through the main chute 2 is further connected to one end of a connecting rod 17, the other end of the connecting rod 17 is connected to a connecting rod handle 18, the connecting rod handle 18 is hinged to the bottom of the main chute 2 through a connecting rod shaft 19, and the connecting rods 17 of the 3 stretcher locking structures 3 can be supported by a connecting rod fixing block 23 and controlled by one connecting rod handle 18.

Further, the end of the hook plate 32 passing through the main chute 2 is connected with an end of the connecting rod 17 through the spring tension adjusting bolt 20, the sleeve structure with internal or external threads at two ends is provided with the spring tension adjusting bolt 20, the connecting part of the hook plate and the connecting part of the connecting rod 17 are stretched or loosened through threads to realize the locking force of the hook plate 32 to the second stretcher part 16.

Further, the main slide rail 7 is two parallel guide rails, the two guide rails are covered on two sides of the screw shaft, and the two auxiliary slide rails 4 are a left auxiliary slide rail and a right auxiliary slide rail which are respectively matched with the two guide rails through an auxiliary slide rail sliding block 41; the main slide rail slide blocks 21 are at least two, preferably 4, and are respectively matched with the two guide rails, and the left auxiliary slide rail and the right auxiliary slide rail and all parts on the left auxiliary slide rail slide.

Further, two auxiliary slide way notches 36 are formed at the end portions of the main slide way 2, and when the main slide way 2 and the auxiliary slide way 4 are adsorbed together through the electromagnetic chuck 8 and the adsorption block 43, the two auxiliary slide ways 2 are respectively embedded into the auxiliary slide way notches 36.

Further, still be provided with gyro wheel 37 on keeping away from detection device the base 1, gyro wheel 37 makes main slide 2 is convenient for slide, and makes main slide 2 slides stably, gyro wheel 37 sets up to 2.

Further, a rear microswitch 38 is further arranged on the base 1 far away from the detection device, the rear microswitch 38 is matched with a rear contact block (not shown in the figure) arranged at the bottom of the main slideway 1, and the front contact block can be a block body with a certain shape; the second stop block 39 is arranged on the main slideway guide rail 7 far away from the detection device or on the base close to the end part of the main slideway guide rail 7, the structure of the second stop block 39 is not specifically limited, and can be mechanical limit, or a block with a certain shape, preferably mechanical limit, so as to prevent the main slideway from sliding out of the guide rail.

The utility model discloses a fixing device for stretcher stretches out's use as follows: the wounded 45 is lifted up to the stretcher 46; after the electromagnetic chuck is powered on, the main slideway 2 extends out under the action of the driving motor, and when the rear contact block contacts the rear microswitch 38, the driving motor stops; a main slideway 46 is arranged on a stretcher 46, the stretcher 46 is pushed to move towards the direction of the detection device, a first stretcher part 6 (roller) is extruded into two clamping pieces of an auxiliary slideway 4 and rolls an ejection piece, then a first microswitch transmits a signal to a controller (singlechip), an electromagnetic chuck is controlled to be powered off, the stretcher is continuously pushed until a stretcher locking structure locks a second stretcher part (a cylinder structure) of the stretcher, namely the stretcher is locked; starting a driving motor, enabling a main slide way 2 to slide towards a detection device, enabling an auxiliary slide way to meet a first stop block, separating a first stretcher part from the auxiliary slide way under the driving force of the driving motor, enabling the main slide way to continue to slide, enabling the stretcher part to be suspended out, enabling a signal to be transmitted to a controller (a single chip microcomputer) to electrify an electromagnetic disk when a front contact block contacts a front micro switch, and enabling the main slide way and the auxiliary slide way to be adsorbed together; the drive motor is then stopped. In the process, the driving motor can be stopped at any time to detect the wounded, and certainly, the detection can be carried out after the main slideway slides to a preset position; after the detection is finished, the driving motor is started to extend the main slideway, and then the connecting rod handle is pulled to loosen the locking structure of the stretcher so as to separate the stretcher from the main slideway.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (11)

1. A securing device for stretcher extension, comprising: the base is provided with a main slideway capable of doing linear motion; and the stretcher locking structure is arranged on the main slideway, and when the stretcher is locked by the stretcher locking structure, part of the stretcher extends out of the main slideway towards the detection device.

2. The stretcher extending fixing device according to claim 1, further comprising an auxiliary chute for supporting and fixing a portion of the stretcher extending out of the main chute and driving the stretcher to move linearly under an external force, wherein the stretcher moves along with the main chute after being locked by the stretcher locking structure; the auxiliary slideway comprises an auxiliary slideway sliding block and an auxiliary slideway main body, the auxiliary slideway main body comprises an auxiliary slideway bottom plate, and a first clamping piece and a second clamping piece which are arranged on the auxiliary slideway bottom plate, and the first clamping piece and the second clamping piece are matched with each other and used for clamping a first stretcher part entering between the first clamping piece and the second clamping piece; the auxiliary slideway bottom plate is fixed on the auxiliary slideway slide block; the auxiliary slideway guide rail is arranged on the base; the auxiliary slide rail is matched with the auxiliary slide sliding block, so that the auxiliary slide slides linearly along the auxiliary slide rail; the first clamping piece comprises a straight plate fixed on the auxiliary slideway bottom plate, and a first elastic piece is fixed on one plate surface of the straight plate; the second clamping piece comprises a folding plate fixed on the auxiliary slideway bottom plate, a second elastic piece is arranged on one plate surface of the folding plate, and a third elastic piece is fixed on the second elastic piece or the folding plate; the first elastic piece and the third elastic piece are arranged oppositely; the distance between the first clamping piece and the second clamping piece is adjustable; the first elastic piece and the third elastic piece are rubber pieces made of rubber materials; the second elastic piece is an elastic piece or an elastic pipe piece with a certain radian or a certain broken line type.

3. The stretcher extending fixing device according to claim 2, wherein a main slideway rail is arranged on the base, the main slideway comprises a main slideway slide block and a main slideway main body, the main slideway slide block is fixed below the main slideway main body, and the main slideway slide block is matched with the main slideway rail to make the main slideway move linearly along the main slideway rail; the main slideway is provided with an electromagnetic chuck, the auxiliary slideway is provided with an adsorption block, and the electromagnetic chuck is matched with the adsorption block to enable the main slideway and the auxiliary slideway to be adsorbed or loosened; the main slideway guide rail and the auxiliary slideway guide rail are the same guide rail.

4. The securing device for a stretcher extension according to claim 3 wherein an open channel is formed on the secondary chute floor, within which an ejector is placed; an ejection metal plate is hinged to one side of the auxiliary slide way sliding block through an ejection metal plate shaft, one end of the ejection metal plate is abutted against the ejection piece, the ejection metal plate is also connected with the auxiliary slide way bottom plate through an ejection metal plate spring, and at the moment, the end of the ejection piece extends out of the opening through groove and is higher than the auxiliary slide way bottom plate; a first microswitch is installed at the bottom of the main slide way and matched with the ejection metal plate to realize power-off of the electromagnetic chuck.

5. A securing device for stretcher extensions according to claim 3 or 4 characterized in that a first stop is provided on the main chute guide or on the base at the end of the main chute guide near the detection device, said first stop being adapted to prevent the sliding of the secondary chute, while the continued movement of the main chute under external force pushes the stretcher to continue its movement, whereby the first stretcher part is released from the grip between the first and second gripping members.

6. The securing device for stretcher extensions according to claim 5, wherein said stretcher locking structure is 3 in a delta-shape arrangement; the stretcher locking structure comprises a clamping plate with an opening and a notch and a hook plate, and the clamping plate is fixed on the main slideway; the hook-shaped plate penetrates through the notch and is hinged with the clamping plate through a hook-shaped plate shaft, one end of the hook-shaped plate is matched with the clamping plate to clamp the second stretcher part, and the other end of the hook-shaped plate penetrates through the main slideway and is connected with the main slideway through a hook-shaped plate spring; the end part of the hook plate penetrating through the main slideway is also connected with one end part of a connecting rod, the other end of the connecting rod is connected with a connecting rod handle, and the connecting rod handle is hinged to the bottom of the main slideway through a connecting rod shaft; the end part of the hook plate penetrating through the main slideway is also connected with one end part of a connecting rod through a spring tension adjusting bolt.

7. The stretcher stretching fixing device according to claim 6, wherein a driving motor is arranged on the base, the driving motor is connected with a lead screw shaft, and the lead screw shaft is fixed by a fixed lead screw seat and a supporting lead screw seat; the bottom of the main slideway is provided with a lead screw sliding block, a lead screw shaft penetrates through the lead screw sliding block, and the main slideway is driven by a driving motor to do linear motion; keep away from detection device still be provided with the gyro wheel on the base, the gyro wheel makes main slide is convenient for slide, and makes main slide slides stably.

8. The stretcher extending fixing device according to claim 7, wherein the main slide rail is two parallel rails, the two auxiliary slides are respectively matched with the two rails through auxiliary slide blocks, and the two auxiliary slides are symmetrically arranged; the main slide way slide blocks are at least two and are respectively matched with the two guide rails.

9. The stretcher extending fixing device according to claim 6, 7 or 8, wherein two auxiliary chute notches are formed at the end of the main chute, and when the main chute and the auxiliary chute are sucked together by the electromagnetic chuck and the suction block, the two auxiliary chutes are respectively inserted into the auxiliary chute notches.

10. The securing device for stretcher extension according to claim 9 wherein the main chute body comprises a main chute bottom plate and main chute side plates disposed on either side of the main chute bottom plate; one end of the main slideway main body is arranged in a horn mouth shape.

11. The stretcher securing device according to claim 10 wherein a front microswitch is provided on the base adjacent the detection device which cooperates with a front trip block provided on the bottom of the main chute to effect the device position detection; a rear microswitch is also arranged on the base far away from the detection device and is matched with a rear contact block arranged at the bottom of the main slideway; and a second stop block is arranged on the main slide rail far away from the detection device or on the base close to the end part of the main slide rail, and the stop block is used for preventing the main slide rail from sliding out of the guide rail.

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