CN113147873A

CN113147873A - Medical oxygen cylinder carrier convenient to assemble and disassemble

Info

Publication number: CN113147873A
Application number: CN202110562983.8A
Authority: CN
Inventors: 王水龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-07-23

Abstract

The invention discloses a medical oxygen bottle carrier convenient for loading and unloading, two wheels are arranged on two sides of a frame, a clamping plate is rotatably arranged at the front ends of four arms, the rear side of the four arms is rotatably connected with the back of the frame, a hydraulic cylinder extends to drive a mandril to move upwards, so that a first arm, a second arm, a third arm and a fourth arm are driven by two chains to simultaneously swing downwards, the four clamping plates clamp an oxygen bottle, a pressure release valve is rotated to release the thrust of the hydraulic cylinder, the mandril can be pulled by the first spring and the second spring to move downwards, the first arm, the second arm, the third arm and the fourth arm simultaneously swing upwards, the four clamping plates release the oxygen bottle, universal casters are arranged at the rear ends of a first supporting leg and a second supporting leg, the front ends of the first supporting leg and the second supporting leg form a rotating pair with the frame, and the angular positions of the first supporting leg and the second supporting leg can be respectively locked by the first screw and the second screw, two front supporting wheels are rotatably mounted on the front side of the lower end of the frame and used for realizing translation of the carrier in a vertical state.

Description

Medical oxygen cylinder carrier convenient to assemble and disassemble

Technical Field

The invention relates to the field of carriers, in particular to a medical oxygen cylinder carrier convenient to assemble and disassemble.

Background

The oxygen cylinder is a very frequently used and very important medical device in a hospital, and is mainly used for the auxiliary treatment of respiratory system diseases (such as asthma, bronchitis, pulmonary heart disease and the like) and heart and cerebrovascular system diseases (such as coronary heart disease, myocardial infarction, cerebral hemorrhage and cerebral infarction) caused by oxygen deficiency so as to relieve the oxygen deficiency symptom; can also be used for health care oxygen inhalation or rapid relief of fatigue after mental labor and physical labor; oxygen cylinder erects in the ward generally during oxygen therapy, because oxygen cylinder is thin high, stability is very poor, if touch carelessly, takes place to empty very easily, in case empty, the patient will be very dangerous, and oxygen cylinder is from great moreover, need remove after using up and change new oxygen cylinder, and the body is smooth cylinder, does not have the stress point, is difficult to the transport.

The oxygen cylinder is a high-pressure container for storing and transporting oxygen, generally, a cylindrical airtight bottle body is made of alloy structural steel through stamping and welding, the whole weight is larger after the oxygen cylinder is filled with high-pressure oxygen, and the oxygen cylinder can be lifted and moved by two workers in a close-distance moving mode, but the danger is larger, and the personal safety of peripheral personnel is also threatened greatly; the transportation of longer distance can be realized through the oxygen cylinder carrier, the oxygen cylinder carrier usually includes the automobile body of slim and long type, the automobile body lower extreme has the layer board, the lower part of automobile body is provided with the gyro wheel, when carrying the oxygen cylinder, adjust the automobile body to vertical state, a staff lifts the bottom one side of oxygen cylinder off ground earlier, another staff impels the automobile body, make the layer board stretch into between the bottom surface and the ground of oxygen cylinder, then release the oxygen cylinder, the bottom of oxygen cylinder just is located the layer board, fix the jar body on the carrier main part with the bandage, pull the upper end of automobile body backward again, make the automobile body incline backward, it shifts the oxygen cylinder to promote the automobile body at last, this kind of method needs two people to cooperate just can accomplish, and consuming time and difficultly, efficiency is lower.

The invention patent with publication number CN107600130A discloses a medical oxygen bottle carrier, in order to make a pushing plate push an oxygen bottle forward to incline, a supporting plate is required to press the ground tightly and the carrier body is pushed forward, so that the pushing plate is pushed forward by the transmission of a bevel gear transmission rod, after the pushing plate pushes the oxygen bottle forward to generate a gap with the ground, the carrier body is pushed forward to insert the supporting plate into the lower side of the oxygen bottle, and the carrier body is pushed backward, thereby completing the loading of the oxygen bottle, but the technical defects are as follows: firstly, the oxygen cylinder is a slender cylinder, when the pushing plate pushes the oxygen cylinder to incline forwards, the gravity center of the oxygen cylinder is easy to move forwards and exceeds the range of the bottom of the oxygen cylinder, so that the oxygen cylinder drives the carrier to dump forwards through the protective belt, personnel are easy to hurt, and high-pressure oxygen in the oxygen cylinder can be exploded due to large vibration, thereby causing greater safety accidents; secondly, waterproof and anti-skid coatings are generally brushed on the ground of the ward, and when the carrier body is pushed forwards, the supporting plate always presses the ground, so that the ground coating can be scratched, scraping noise can be generated, and the recovery of patients is not favorable; the structure is unreasonable, the pushing plate can be extended forwards and the oxygen cylinder can be pushed forwards by the forward tilting carrier body, and when the supporting plate is about to be inserted into the lower end of the oxygen cylinder, if the oxygen cylinder is not tilted forwards, the supporting plate cannot be inserted into the lower end of the oxygen cylinder; if the oxygen cylinder is inclined forwards, the oxygen cylinder moves forwards continuously to ensure that the oxygen cylinder inclines forwards in the process that the supporting plate is inserted into the lower end of the oxygen cylinder, so that the oxygen cylinder is toppled forwards to cause safety accidents; fourthly, the operation is very difficult, and an operator needs to control the proper forward inclination angle of the carrier body and push the carrier to move forward to insert the supporting plate into the lower end of the oxygen cylinder in the process of loading the oxygen cylinder; the carrier inclines forward the angle undersize, and the gap between oxygen cylinder and the ground is not enough inserts the layer board, and the carrier inclines forward the angle oversize, will make the oxygen cylinder empty forward again, and the operation degree of difficulty when uninstalling the oxygen cylinder is also great.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the medical oxygen cylinder carrier which is convenient to assemble and disassemble, and is novel in structure, stable in movement and convenient to use.

The technical scheme adopted by the invention is as follows: the utility model provides a medical oxygen cylinder carrier of convenient loading and unloading, includes frame, pneumatic cylinder, splint, fourth arm, first chain, second arm, oxygen cylinder, first arm, third arm, ejector pin, first landing leg, second landing leg, universal caster, wheel, preceding truckle, spring terminal, first spring, second spring, first screw rod, second screw rod, its characterized in that: the two wheels are respectively rotatably installed on two sides of the frame, the left ends of the first arm and the third arm are respectively rotatably provided with a clamping plate, the right ends of the first arm and the third arm are respectively provided with a chain wheel and are respectively rotatably connected with the back of the frame, the first chain is matched with the two chain wheels at the right ends of the first arm and the third arm, the right ends of the second arm and the fourth arm are respectively rotatably provided with a clamping plate, the left ends of the second arm and the fourth arm are respectively provided with a chain wheel and are respectively rotatably connected with the back of the frame, the second chain is matched with the two chain wheels at the left ends of the second arm and the fourth arm, the hydraulic cylinder is fixedly connected with the frame, the pedal is stepped to realize the extension of the hydraulic cylinder, the hydraulic cylinder can drive the first chain and the second chain to rotate through the ejector rod, the first arm, the second arm, the third arm and the fourth arm simultaneously swing downwards, the four clamping plates can clamp the oxygen cylinder, the rotary pressure release valve can release the pushing force of the hydraulic cylinder, and the first spring, The ejector pin downstream can be pulled to the second spring, make first arm, the second arm, the third arm, the fourth arm upwards swings simultaneously, four splint are simultaneously released the centre gripping to the oxygen cylinder, a universal caster is all installed to first landing leg and second landing leg rear end, the front end all constitutes the revolute pair with the frame, and the locking of first landing leg and second landing leg angular position is realized respectively to accessible first screw rod and second screw rod, frame lower extreme front side is rotated and is installed two front supporting wheels, a translation for realizing the vertical state of carrier.

Preferably, the front side of the frame is provided with a cambered surface structure, the cambered surface is provided with a layer of anti-static rubber for increasing the friction coefficient and preventing static electricity, the left side of the frame is provided with a left handrail, the right side of the frame is provided with a right handrail, the upper end of the back surface is provided with a first rotating shaft and a second rotating shaft, the back surface is provided with a left terminal shaft, a right terminal shaft, a third rotating shaft and a fourth rotating shaft near the middle position, the middle position of the lower end of the back surface of the frame is provided with a fixed plate, the left side of the lower end of the back surface is provided with a left arc plate, the left side of the left arc plate is provided with a left wheel shaft, the right side of the left arc plate is provided with a first leg shaft, the excircle of the left arc plate is provided with six threaded holes at equal intervals in the circumferential direction around the central axis of the first leg shaft, the right arc plate is provided with a right arc plate, the right wheel shaft is provided with a second leg shaft on the left arc plate, the excircle of the right arc plate is provided with six threaded holes at equal intervals in the circumferential direction around the central axis of the second leg shaft, the two sides of the lower end of the front side of the frame are respectively provided with a left supporting rod and a right supporting rod.

Preferably, the inner side of the clamping plate is an arc surface, a layer of anti-static rubber is arranged in the arc surface and used for increasing the friction coefficient and preventing static electricity, the left end of the first arm is rotatably provided with a clamping plate, the rotating center is positioned at the position, close to the upper end, of the back surface of the clamping plate, so that the clamping plate is always kept in a nearly vertical state under the action of self gravity, the right end of the first arm is provided with a first chain wheel and is coaxially and rotatably connected with a first rotating shaft, the right end of the second arm is rotatably provided with a clamping plate, the rotating center is positioned at the position, close to the upper end, of the back surface of the clamping plate, the left end of the second arm is provided with a second chain wheel and is coaxially and rotatably connected with a second rotating shaft, the left end of the third arm is rotatably provided with a clamping plate, the right end of the fourth arm is rotatably provided with a clamping plate, and the rotating center is positioned at the position close to the upper end of the back of the clamping plate, the left end of the fourth arm is provided with a fourth chain wheel and is coaxially and rotatably connected with a fourth rotating shaft, the first chain is of a closed circular ring structure and is matched and installed with the first chain wheel and the third chain wheel to form chain and chain wheel transmission, and the second chain is of a closed circular ring structure and is matched and installed with the second chain wheel and the fourth chain wheel to form chain and chain wheel transmission.

Preferably, the upper end of the ejector rod is fixedly connected with a chain link on the right side of the first chain and a chain link on the left side of the second chain, the ejector rod can simultaneously realize swinging motion of the first arm, the second arm, the third arm and the fourth arm after moving up and down, the upper end of the first spring is connected with the left side of the upper end of the ejector rod through a spring terminal, the lower end of the first spring is connected with a left terminal shaft through a spring terminal, the upper end of the second spring is connected with the right side of the upper end of the ejector rod through a spring terminal, the lower end of the second spring is connected with a right terminal shaft through a spring terminal, and the ejector rod always tends to move downwards under the tensile force action of the first spring and the second spring.

Preferably, the upper end of the hydraulic cylinder is provided with a pressure release valve, the lower end of the hydraulic cylinder is provided with a pedal, the hydraulic cylinder can be gradually extended by stepping on the pedal for multiple times, the pressure release valve is unscrewed to enable the hydraulic cylinder to be shortened under the action of external force, the lower end of the hydraulic cylinder is fixedly connected with the fixed plate, and the upper end of the hydraulic cylinder is fixedly connected with the lower end of the ejector rod.

Preferably, a wheel is rotatably mounted on the left wheel shaft, a wheel is rotatably mounted on the right wheel shaft, the front end of the first support leg is rotatably connected with the first support leg shaft, a universal caster is mounted at the rear end of the first support leg, the first screw penetrates through the first support leg and is matched and screwed with the threaded hole in the left arc plate, so that the first support leg is stably positioned, and the first screw is matched and screwed with different threaded holes so that the first support leg and the frame form different angles; the front end of the second support leg and a second support leg shaft form a revolute pair, a universal caster is mounted at the rear end of the second support leg, a second screw penetrates through the second support leg and is matched and screwed with a threaded hole in the right arc plate, so that the second support leg is stably positioned, and the second screw is matched and screwed with different threaded holes so that the second support leg and the frame form different angles; the first supporting leg and the second supporting leg are always parallel, so that when the carrier is pushed to move, the two universal casters and the two wheels can be stably contacted with the ground; the front end of the left supporting rod is rotatably provided with a front supporting wheel, and the front end of the right supporting rod is also rotatably provided with a front supporting wheel.

The invention has the beneficial effects that:

one operator can load, transport and unload the oxygen cylinder, so that the labor resource is saved, the use is convenient, and the transport efficiency is high.

The front side of the frame is provided with two front supporting wheels, the carrier can be translated in a vertical state in the process of loading the oxygen cylinder, the oxygen cylinder does not need to be inclined first, the possibility of the oxygen cylinder falling accident in the loading process is completely avoided, the safety is high, and the loading form has high novelty.

The oxygen cylinder is convenient to unload and accurate in positioning, the oxygen cylinder can be directly placed at a target position, subsequent manual position adjustment is not needed, and the oxygen cylinder is convenient to use.

And anti-static rubber is arranged on the front side of the frame and the inner side of the clamping plate, so that the friction coefficient is increased, the clamping plate can clamp the oxygen cylinder more stably, and combustion or explosion caused by static electricity can be prevented.

The inclination angle of the carrier when moving can be adjusted according to the height and the size of an operator, the use habit and the road surface gradient condition, and the carrier has strong universality.

The clamping of the oxygen cylinder can be realized by stepping the pedal of the hydraulic cylinder by an operator, the release of the oxygen cylinder can be realized by screwing the pressure release valve, the operation is convenient, and the hydraulic drive has the advantages of large driving force, stable motion, stable self-locking and the like.

And the movement of each clamping plate is driven by one arm, and the ejector rod can simultaneously drive the swinging and rotating actions of the first arm, the second arm, the third arm and the fourth arm through two chains, so that the four clamping plates can simultaneously and symmetrically clamp the oxygen cylinder, and the clamping is safer and more stable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is a schematic view of the overall structure of the present invention.

Fig. 5 is a partially enlarged schematic view of the present invention.

Fig. 6 is a schematic structural view of the vehicle frame.

Reference numerals: 1 frame, 1.1 left handrail, 1.2 right handrail, 1.3 first rotating shaft, 1.4 second rotating shaft, 1.5 left terminal shaft, 1.6 right terminal shaft, 1.7 third rotating shaft, 1.8 fourth rotating shaft, 1.9 right wheel shaft, 1.10 right arc plate, 1.11 second supporting leg shaft, 1.12 fixed plate, 1.13 first supporting leg shaft, 1.14 left arc plate, 1.15 left wheel shaft, 1.16 left supporting rod, 1.17 right supporting rod, 2 hydraulic cylinder, 2.1 relief valve, 2.2 pedal, 3 splint, 4 fourth arm, 4.1 fourth sprocket, 5.1 first chain, 5.2 second chain, 6 second arm, 6.1 second sprocket, 7 oxygen cylinder, 8 first arm, 8.1 first sprocket, 9 third arm, 9.1 third sprocket, 10 ejector pin, 11.1 first supporting leg, 11.2 second supporting leg, 12 castor, 13 first spring, 15.17 first screw, 16.17 spring, and second spring.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 6, a medical oxygen cylinder carrier convenient for loading and unloading comprises a frame 1, a hydraulic cylinder 2, a clamp plate 3, a fourth arm 4, a first chain 5.1, a second chain 5.2, a second arm 6, an oxygen cylinder 7, a first arm 8, a third arm 9, a push rod 10, a first leg 11.1, a second leg 11.2, a universal caster 12, a wheel 13, a front supporting wheel 14, a spring terminal 15, a first spring 16.1, a second spring 16.2, a first screw 17.1 and a second screw 17.2, and is characterized in that: two wheels 13 are respectively and rotatably arranged at two sides of a frame 1, a clamping plate 3 is respectively and rotatably arranged at the left ends of a first arm 8 and a third arm 9, a chain wheel is arranged at the right end and is rotatably connected with the back surface of the frame 1, a first chain 5.1 is matched and arranged with the two chain wheels at the right ends of the first arm 8 and the third arm 9, a clamping plate 3 is respectively and rotatably arranged at the right ends of a second arm 6 and a fourth arm 4, a chain wheel is arranged at the left end and is rotatably connected with the back surface of the frame 1, a second chain 5.2 is matched and arranged with the two chain wheels at the left ends of the second arm 6 and the fourth arm 4, the hydraulic cylinder 2 is fixedly connected with the frame 1, the pedal 2.1 is stepped to realize the extension of the hydraulic cylinder 2, so that the hydraulic cylinder 2 can drive the first chain 5.1 and the second chain 5.2 to rotate through a mandril 10, and the first arm 8, the second arm 6, the third arm 9 and the fourth arm 4 simultaneously swing downwards, so that the four clamping plates 3 can clamp an oxygen bottle 7, the thrust of the hydraulic cylinder 2 can be removed by rotating the pressure release valve 2.2, so that the first spring 16.1 and the second spring 16.2 can pull the mandril 10 to move downwards, the first arm 8, the second arm 6, the third arm 9 and the fourth arm 4 simultaneously swing upwards, meanwhile, the four clamping plates 3 release the clamping of the oxygen cylinder 7, the rear ends of the first leg 11.1 and the second leg 11.2 are respectively provided with a universal caster 12, the front ends of the first leg and the second leg form a revolute pair with the frame 1, the angular positions of the first leg 11.1 and the second leg 11.2 can be respectively locked by the first screw 17.1 and the second screw 17.2, and the front side of the lower end of the frame 1 is rotatably provided with two front supporting wheels 14 for realizing the translation of the transport vehicle in a vertical state.

The front side of the frame 1 is provided with a cambered surface structure, a layer of anti-static rubber is arranged on the cambered surface and used for increasing the friction coefficient and preventing static electricity, the left side of the frame 1 is provided with a left handrail 1.1, the right side of the frame is provided with a right handrail 1.2, the upper end of the back surface is provided with a first rotating shaft 1.3 and a second rotating shaft 1.4, the back surface is provided with a left terminal shaft 1.5, a right terminal shaft 1.6, a third rotating shaft 1.7 and a fourth rotating shaft 1.8 near the middle position, the middle position of the lower end of the back surface of the frame 1 is provided with a fixed plate 1.12, the left side of the lower end of the back surface is provided with a left arc plate 1.14, the left side of the left arc plate 1.14 is provided with a left wheel shaft 1.15, the right side of the left arc plate 1.14 is provided with a first supporting leg shaft 1.13, the outer circle of the left arc plate 1.14 is provided with six threaded holes at equal intervals in the circumferential direction around the central axis of the first supporting shaft, the right arc plate 1.10 is provided with a right arc plate 1.10, the right arc plate 1.10 is provided with six threaded holes at equal intervals in the right side of the right arc plate 1.9, the left side of the left arc plate 1.10, the left side of the central axis is provided with a second supporting shaft at equal intervals in the circumferential direction, two sides of the lower end of the front side of the frame 1 are respectively provided with a left supporting rod 1.16 and a right supporting rod 1.17.

The inner side of the clamping plate 3 is an arc surface, a layer of anti-static rubber is arranged in the arc surface and used for increasing the friction coefficient and preventing static electricity, the left end of the first arm 8 is rotatably provided with the clamping plate 3, the rotating center is positioned at the back of the clamping plate 3 and close to the upper end position, so that the clamping plate 3 is always kept in a nearly vertical state under the action of self gravity, the right end of the first arm 8 is provided with a first chain wheel 8.1 and is coaxially and rotatably connected with a first rotating shaft 1.3, the right end of the second arm 6 is rotatably provided with the clamping plate 3, the rotating center is positioned at the back of the clamping plate 3 and close to the upper end position, the left end of the second arm 6 is provided with a second chain wheel 6.1 and is coaxially and rotatably connected with a second rotating shaft 1.4, the left end of the third arm 9 is rotatably provided with the clamping plate 3, the rotating center is positioned at the back of the clamping plate 3 and close to the upper end position, the right end of the third arm 9 is provided with a third chain wheel 9.1 and is coaxially and is rotatably connected with a third rotating shaft 1.7, 4 right-hand members of fourth arm rotate and install a splint 3, and the center of rotation is located the splint 3 back and is close to the upper end position, 4 left ends of fourth arm are provided with fourth sprocket 4.1 and are connected with fourth pivot 1.8 coaxial rotation, first chain 5.1 is for sealing the ring structure and constitutes chain sprocket drive with first sprocket 8.1 and third sprocket 9.1 cooperation installation, second chain 5.2 is for sealing the ring structure and constitutes chain sprocket drive with second sprocket 6.1 and fourth sprocket 4.1 cooperation installation.

The upper end of the ejector rod 10 is fixedly connected with a chain link on the right side of the first chain 5.1 and a chain link on the left side of the second chain 5.2, the ejector rod 10 can simultaneously swing and rotate after moving up and down, the upper end of the first spring 16.1 is connected with the left side of the upper end of the ejector rod 10 through a spring terminal 15, the lower end of the first spring 16.1 is connected with the left terminal shaft 1.5 through a spring terminal 15, the upper end of the second spring 16.2 is connected with the right side of the upper end of the ejector rod 10 through a spring terminal 15, the lower end of the second spring 16.2 is connected with the right terminal shaft 1.6 through a spring terminal 15, and the ejector rod 10 always tends to move downwards under the pulling force of the first spring 16.1 and the second spring 16.2.

The upper end of the hydraulic cylinder 2 is provided with a pressure release valve 2.2, the lower end of the hydraulic cylinder is provided with a pedal 2.1, the hydraulic cylinder 2 can be gradually extended by stepping on the pedal 2.1 for multiple times, the hydraulic cylinder 2 can be shortened under the action of external force by unscrewing the pressure release valve 2.2, the lower end of the hydraulic cylinder 2 is fixedly connected with a fixed plate 1.12, and the upper end of the hydraulic cylinder 2 is fixedly connected with the lower end of the ejector rod 10.

A wheel 13 is rotatably mounted on a left wheel shaft 1.15, a wheel 13 is rotatably mounted on a right wheel shaft 1.9, the front end of a first leg 11.1 is rotatably connected with the first leg shaft 1.13, a universal caster 12 is mounted at the rear end of the first leg 11.1, a first screw 17.1 penetrates through the first leg 11.1 and is screwed with a threaded hole on a left arc plate 1.14 in a matching manner, so that the first leg 11.1 is stably positioned, and the first screw 17.1 is screwed with different threaded holes in a matching manner, so that the first leg 11.1 and the frame 1 form different angles; the front end of the second supporting leg 11.2 and the second supporting leg shaft 1.11 form a revolute pair, the rear end of the second supporting leg 11.2 is provided with a universal caster 12, a second screw 17.2 penetrates through the second supporting leg 11.2 and is matched and screwed with a threaded hole in the right arc plate 1.10, so that the second supporting leg 11.2 is stably positioned, and the second screw 17.2 is matched and screwed with different threaded holes so that the second supporting leg 11.2 and the frame 1 form different angles; the first leg 11.1 and the second leg 11.2 are always parallel, so that when the carrier is pushed to move, the two universal casters 12 and the two wheels 13 can be stably contacted with the ground; the front end of the left strut 1.16 is rotatably provided with a front supporting wheel 14, and the front end of the right strut 1.17 is also rotatably provided with a front supporting wheel 14.

The embodiment of the invention comprises the following steps:

during initial state, pneumatic cylinder 2 is in the contraction state, and relief valve 2.2 is in the state of screwing up, and ejector pin 10 is in the lowest position, and four splint 3 all outwards open to maximum width.

When the oxygen cylinder 7 is carried, the carrier is in a vertical state, at the moment, the two wheels 13 and the two front supporting wheels 14 are simultaneously contacted with the ground, the carrier is pushed forwards, the oxygen cylinder 7 is contacted with the cambered surface structure on the front side of the frame 1, the pedal 2.1 is repeatedly stepped downwards, the hydraulic cylinder 2 is gradually extended, the ejector rod 10 moves upwards, the first chain 5.1 rotates anticlockwise, the second chain 5.2 rotates clockwise, the first arm 8, the second arm 6, the third arm 9 and the fourth arm 4 simultaneously swing downwards until the four clamping plates 3 clamp the oxygen cylinder 7, the carrier is inclined backwards, the two universal casters 12 and the two wheels 13 are simultaneously contacted with the ground, and then the carrier can be moved to a target position.

When uninstalling oxygen cylinder 7, earlier make the carrier be in vertical state, two wheels 13 and two front supporting wheels 14 contact ground simultaneously this moment, oxygen cylinder 7 lower extreme also contacts ground, unscrew relief valve 2.2 back, ejector pin 10 moves down under first spring 16.1 and second spring 16.2 pulling force effect, thereby pneumatic cylinder 2 realizes contracting, first chain 5.1 clockwise turning simultaneously, second chain 5.2 anticlockwise rotation, make first arm 8, second arm 6, third arm 9, fourth arm 4 upwards swing simultaneously, realize opening of four splint 3, pull the carrier backward and can accomplish the uninstallation of oxygen cylinder 7.

First screw rod 17.1 and second screw rod 17.2 twist in different screw holes, keep different inclination when making the carrier remove to satisfy different height operators' use habit, also can satisfy the user demand of different road surface slopes.

The references to "front", "back", "left", "right", etc., are to be construed as references to orientations or positional relationships based on the orientation or positional relationship shown in the drawings or as orientations and positional relationships conventionally found in use of the product of the present invention, and are intended to facilitate the description of the invention and to simplify the description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Claims

1. The utility model provides a medical oxygen cylinder carrier of convenient loading and unloading, includes frame (1), pneumatic cylinder (2), splint (3), fourth arm (4), first chain (5.1), second chain (5.2), second arm (6), oxygen cylinder (7), first arm (8), third arm (9), ejector pin (10), first landing leg (11.1), second landing leg (11.2), universal caster (12), wheel (13), front support wheel (14), spring terminal (15), first spring (16.1), second spring (16.2), first screw rod (17.1), second screw rod (17.2), its characterized in that: the two wheels (13) are respectively and rotatably arranged at two sides of the frame (1), the left ends of the first arm (8) and the third arm (9) are respectively and rotatably provided with a clamping plate (3), the right ends of the first arm (8) and the third arm (9) are respectively and rotatably connected with the back of the frame (1), a first chain (5.1) is matched and arranged with the two chain wheels at the right ends of the first arm (8) and the third arm (9), the right ends of the second arm (6) and the fourth arm (4) are respectively and rotatably provided with a clamping plate (3), the left ends of the second arm (6) and the fourth arm (4) are respectively and rotatably connected with the back of the frame (1), a second chain (5.2) is matched and arranged with the two chain wheels at the left ends of the second arm (6) and the fourth arm (4), the hydraulic cylinder (2) is fixedly connected with the frame (1), the treading pedal (2.1) can realize the extension of the hydraulic cylinder (2), so that the hydraulic cylinder (2) can drive the first chain (5.1) and the second chain (5.2) to rotate through the mandril (10), thereby the first arm (8), the second arm (6), the third arm (9) and the fourth arm (4) simultaneously swing downwards, the four clamping plates (3) clamp the oxygen cylinder (7), the thrust of the hydraulic cylinder (2) can be removed by rotating the pressure relief valve (2.2), the first spring (16.1) and the second spring (16.2) can pull the mandril (10) to move downwards, the first arm (8), the second arm (6), the third arm (9) and the fourth arm (4) simultaneously swing upwards, the four clamping plates (3) release the clamping of the oxygen cylinder (7), the rear ends of the first supporting leg (11.1) and the second supporting leg (11.2) are respectively provided with a universal caster (12), the front ends of the first supporting leg and the second supporting leg form a rotating pair with the frame (1), and the angle positions of the first supporting leg (11.1) and the second supporting leg (11.2) can be respectively locked by the first screw (17.1) and the second screw (17.2), two front supporting wheels (14) are rotatably arranged on the front side of the lower end of the frame (1) and are used for realizing the translation of the carrier in a vertical state.

2. The portable medical oxygen cylinder cart according to claim 1, wherein: the front side of the frame (1) is provided with a cambered surface structure, a layer of anti-static rubber is arranged on the cambered surface and used for increasing the friction coefficient and preventing static electricity, the left side of the frame (1) is provided with a left handrail (1.1), the right side of the frame is provided with a right handrail (1.2), the upper end of the back surface is provided with a first rotating shaft (1.3) and a second rotating shaft (1.4), the back surface is provided with a left terminal shaft (1.5), a right terminal shaft (1.6), a third rotating shaft (1.7) and a fourth rotating shaft (1.8) near the middle position, the middle position of the lower end of the back surface of the frame (1) is provided with a fixed plate (1.12), the left side of the lower end of the back surface is provided with a left arc plate (1.14), the left side of the left arc plate (1.14) is provided with a left wheel shaft (1.15), the right side of the left arc plate (1.14) is provided with a first leg shaft (1.13), the outer circle of the left arc plate (1.14) is provided with six threaded holes at equal intervals in the circumferential direction around the central axis, the lower end of the back surface of the frame (1.10), a right wheel shaft (1.9) is arranged on the right side of the right arc plate (1.10), a second supporting leg shaft (1.11) is arranged on the left side of the right arc plate (1.10), six threaded holes are circumferentially arranged on the excircle of the right arc plate (1.10) at equal intervals around the central axis of the second supporting leg shaft (1.11), and a left supporting rod (1.16) and a right supporting rod (1.17) are respectively arranged on two sides of the lower end of the front side of the frame (1);

the inner side of the clamping plate (3) is an arc surface, a layer of anti-static rubber is arranged in the arc surface and used for increasing the friction coefficient and preventing static electricity, the left end of the first arm (8) is rotatably provided with the clamping plate (3), the rotating center is positioned at the back of the clamping plate (3) and close to the upper end position, so that the clamping plate (3) is always kept in a state close to the vertical direction under the action of self gravity, the right end of the first arm (8) is provided with a first chain wheel (8.1) and is coaxially and rotatably connected with the first rotating shaft (1.3), the right end of the second arm (6) is rotatably provided with the clamping plate (3), the rotating center is positioned at the back of the clamping plate (3) and close to the upper end position, the left end of the second arm (6) is provided with a second chain wheel (6.1) and is coaxially and rotatably connected with the second rotating shaft (1.4), the left end of the third arm (9) is rotatably provided with the clamping plate (3), and the rotating center is positioned at the back of the clamping plate (3) and close to the upper end position, a third chain wheel (9.1) is arranged at the right end of the third arm (9) and is coaxially and rotatably connected with a third rotating shaft (1.7), a clamping plate (3) is rotatably arranged at the right end of the fourth arm (4), the rotating center is positioned at the position, close to the upper end, of the back surface of the clamping plate (3), a fourth chain wheel (4.1) is arranged at the left end of the fourth arm (4) and is coaxially and rotatably connected with a fourth rotating shaft (1.8), a first chain (5.1) is of a closed circular ring structure and is matched and installed with the first chain wheel (8.1) and the third chain wheel (9.1) to form chain and chain wheel transmission, and a second chain (5.2) is of a closed circular ring structure and is matched and installed with the second chain wheel (6.1) and the fourth chain wheel (4.1) to form chain and chain wheel transmission;

the upper end of the mandril (10) is fixedly connected with one chain link at the right side of the first chain (5.1) and one chain link at the left side of the second chain (5.2), thereby the swing and rotation actions of the first arm (8), the second arm (6), the third arm (9) and the fourth arm (4) can be simultaneously realized after the ejector rod (10) moves up and down, the upper end of the first spring (16.1) is connected with the left side of the upper end of the ejector rod (10) through a spring terminal (15), the lower end of the first spring (16.1) is connected with the left terminal shaft (1.5) through a spring terminal (15), the upper end of the second spring (16.2) is connected with the right side of the upper end of the ejector rod (10) through a spring terminal (15), the lower end of the second spring (16.2) is connected with the right terminal shaft (1.6) through a spring terminal (15), therefore, under the action of the pulling force of the first spring (16.1) and the second spring (16.2), the ejector rod (10) always has the tendency of moving downwards;

pneumatic cylinder (2) upper end is equipped with relief valve (2.2), and the lower extreme is equipped with footboard (2.1), steps on footboard (2.1) many times and can make pneumatic cylinder (2) extend gradually, unscrews relief valve (2.2) and can make pneumatic cylinder (2) shorten under the exogenic action, and pneumatic cylinder (2) lower extreme and fixed plate (1.12) fixed connection, pneumatic cylinder (2) upper end and ejector pin (10) lower extreme fastening connection.

3. The portable medical oxygen cylinder cart according to claim 1, wherein: a wheel (13) is rotatably mounted on the left wheel shaft (1.15), a wheel (13) is rotatably mounted on the right wheel shaft (1.9), the front end of the first supporting leg (11.1) is rotatably connected with the first supporting leg shaft (1.13), a universal caster (12) is mounted at the rear end of the first supporting leg (11.1), a first screw (17.1) penetrates through the first supporting leg (11.1) and is matched and screwed with a threaded hole in the left arc plate (1.14) to realize stable positioning of the first supporting leg (11.1), and the first screw (17.1) is matched and screwed with different threaded holes to enable the first supporting leg (11.1) and the frame (1) to form different angles; the front end of the second supporting leg (11.2) and the second supporting leg shaft (1.11) form a revolute pair, a universal caster (12) is installed at the rear end of the second supporting leg (11.2), a second screw (17.2) penetrates through the second supporting leg (11.2) and is matched and screwed with a threaded hole in the right arc plate (1.10), so that the second supporting leg (11.2) is stably positioned, and the second screw (17.2) is matched and screwed with different threaded holes so that the second supporting leg (11.2) and the frame (1) form different angles; the first supporting leg (11.1) and the second supporting leg (11.2) are always kept parallel, so that when the carrier is pushed to move, the two universal casters (12) and the two wheels (13) can be stably contacted with the ground; the front end of the left support rod (1.16) is rotatably provided with a front support wheel (14), and the front end of the right support rod (1.17) is also rotatably provided with a front support wheel (14).

4. The portable medical oxygen cylinder cart according to claim 1, wherein: in the initial state, the hydraulic cylinder (2) is in a contraction state, the pressure release valve (2.2) is in a tightening state, the ejector rod (10) is in the lowest position, and the four clamping plates (3) are all opened outwards to the maximum width;

when the oxygen cylinder (7) is conveyed, the conveying vehicle is in a vertical state, at the moment, two wheels (13) and two front supporting wheels (14) are simultaneously contacted with the ground, the conveying vehicle is pushed forwards, the oxygen cylinder (7) is contacted with an arc surface structure on the front side of the vehicle frame (1), the pedal (2.1) is repeatedly stepped downwards, the hydraulic cylinder (2) is gradually extended, the ejector rod (10) moves upwards, the first chain (5.1) rotates anticlockwise, the second chain (5.2) rotates clockwise, so that the first arm (8), the second arm (6), the third arm (9) and the fourth arm (4) simultaneously swing downwards until the four clamping plates (3) clamp the oxygen cylinder (7), the conveying vehicle is inclined backwards to enable two universal casters (12) and the two wheels (13) to be simultaneously contacted with the ground, and then the conveying vehicle can be moved to a target position;

when the oxygen cylinder (7) is unloaded, the carrier is firstly in a vertical state, at the moment, two wheels (13) and two front supporting wheels (14) are simultaneously contacted with the ground, the lower end of the oxygen cylinder (7) is also contacted with the ground, after the pressure release valve (2.2) is unscrewed, the ejector rod (10) moves downwards under the tension action of the first spring (16.1) and the second spring (16.2), so that the hydraulic cylinder (2) is contracted, and meanwhile, the first chain (5.1) rotates clockwise and the second chain (5.2) rotates anticlockwise, so that the first arm (8), the second arm (6), the third arm (9) and the fourth arm (4) simultaneously swing upwards, the opening of the four clamping plates (3) is realized, and the unloading of the oxygen cylinder (7) can be completed by pulling away from the carrier backwards;

first screw rod (17.1) and second screw rod (17.2) twist in different screw holes, keep different inclination when can making the carrier remove to satisfy different height operators' use habit, also can satisfy the user demand of different road surface slopes.