Medical oxygen cylinder cart and using method thereof

Abstract

The invention discloses a medical oxygen cylinder cart and a using method thereof, and belongs to the field of medical equipment.The medical oxygen cylinder cart comprises a frame, and universal wheels and supporting wheels are arranged on the frame; a supporting plate is slidably mounted on the side wall of the frame, and a driving mechanism for driving the supporting plate to move up and down along the frame is arranged on the frame; holes are uniformly formed in the surface of the frame, a cavity is formed in the frame, guide pipes are inserted into the bottom walls of the holes and extend into the cavity, and an air supply mechanism matched with the cavity is arranged on the frame; the distance between the oxygen bottle and the ground can be increased in the transferring process, and the toppling risk of the oxygen bottle due to the uneven ground, bumping of the cart and the like can be effectively reduced; if the oxygen bottle is in direct contact with the ground, and a valve and accessories are possibly damaged due to friction and collision to cause oxygen leakage or incapability of normal use, the situation can be avoided by increasing the distance; and the effect of improving the safety and the working efficiency is achieved.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and more particularly to a medical oxygen cylinder cart and a use method thereof. Background Art

[0002] Oxygen cylinder trolleys are tools used to carry oxygen cylinders. They are widely used in hospitals and other places to push oxygen cylinders from storage rooms to wards to meet the needs of medical staff for transporting oxygen.

[0003] During transportation, if the operation is improper or unstable factors are encountered, such as the oxygen cylinder is too close to the ground, it is easy for the oxygen cylinder to collide with impurities on the ground, and the oxygen cylinder may fall or bump. This not only increases the safety hazard, but also makes it difficult to meet the "four protections" requirements in oxygen management - shockproof, fireproof, heatproof and oilproof; under the current circumstances, the entire transportation process is highly dependent on the personal responsibility and physical support of clinical medical staff. Over a long period of time, it is very easy to cause physical fatigue of medical staff and affect work efficiency; therefore, there is an urgent need to achieve fundamental changes by improving the existing oxygen cylinder cart design to reduce the burden on staff, while improving safety and efficiency, and ensuring better compliance with safety regulations for oxygen use.

[0004] For this reason, a medical oxygen cylinder cart and a method of using the same are proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a medical oxygen cylinder cart and a method of using the same, which can reduce the burden on staff and improve safety and efficiency.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A medical oxygen cylinder cart comprises a frame, on which universal wheels and supporting wheels are arranged; A support plate is slidably mounted on the side wall of the frame, and a driving mechanism is provided on the frame to drive the support plate to move up and down along the frame; The surface of the frame is evenly provided with holes, a cavity is provided on the frame, a conduit is inserted into the bottom wall of the hole, the conduit extends into the cavity, and an air supply mechanism cooperating with the cavity is provided on the frame; A ball is movably embedded in the hole, and the end of the conduit is located on the side wall of the hole; An arc-shaped lock buckle is hinged on the side wall of the frame, a screw is threadedly installed on the free end of the lock buckle, a screw hole matched with the screw is opened on the frame, and a buffer pad is fixedly installed on the side wall of the lock buckle; and a pressurizing mechanism matched with the buffer pad is provided on the frame; A support plate is slidably sleeved on the top wall of the support plate, a groove is provided on the bottom wall of the support plate, the support plate is slidably installed in the groove, a weight detection module is provided on the top wall of the support plate, the weight detection module is located between the support plate and the support plate, the weight detection module is a weight sensor, and the weight sensor has removed the weight of the support plate in the initial state, so when the oxygen cylinder is placed on the surface of the support plate, the weight sensor can measure the overall weight of the oxygen cylinder; The frame is provided with a display module, a calculation module, a temperature detection module and an alarm module, the temperature detection module is a temperature sensor, and the alarm module is a warning light; The temperature detection module sends the detected temperature data to the calculation module; the weight detection module sends the detected data to the calculation module, which calculates the weight and pressure of the oxygen in the oxygen cylinder and then sends the calculated result to the display module, so that medical staff can understand the remaining amount of oxygen in the oxygen cylinder. The calculation module sends the calculated data to the alarm module and the display module.

[0008] The calculation module calculates the received data; ; Where m is the actual weight of oxygen in the oxygen cylinder; M1 is the combined weight of the oxygen cylinder and oxygen detected by the weight detection module; M0 is the weight of the oxygen cylinder, which is the preset value; Where n is the amount of substance; M is the molar mass of oxygen, which is 32 g / mol; According to the ideal gas state equation: Where P is the pressure in the oxygen cylinder; R represents the molar gas constant, which is 8.314 J / (mol·K); T is the temperature detected by the temperature detection module, and is Kelvin temperature; V is the volume of the oxygen cylinder, which is the preset value; The calculation module sends the calculation results to the alarm module, and the alarm module judges the received data, thereby improving the safety of the oxygen cylinder transportation process; When P>P0, the alarm module does not work; When P≤P0, the alarm module works to remind medical staff that the oxygen content in the oxygen cylinder is low; Among them, P0 is the preset value.

[0009] First, under the action of the driving mechanism, the support plate moves down to the maximum extent. At this time, the medical staff places the oxygen cylinder on the top wall of the support plate. After the oxygen cylinder is transferred to the surface of the support plate, the lock buckle is turned to cover the surface of the oxygen cylinder. At this time, the lock buckle and the frame wrap the oxygen cylinder, and then the screw is turned to screw the screw into the screw hole, thereby limiting the position of the oxygen cylinder and preventing the oxygen cylinder from falling from the surface of the support plate. In the process of the support plate driving the oxygen cylinder to move, the stability is improved and the oxygen cylinder is fixed.

[0010] Then the support plate is driven upward by the driving mechanism, so that the distance between the oxygen cylinder and the ground can be increased during the transfer process. If the oxygen cylinder directly contacts the ground, the valve and accessories may be damaged due to friction and collision, resulting in oxygen leakage or inability to use normally. Therefore, by increasing the distance, this situation can be avoided; and finally the pressure in the oxygen cylinder is displayed through the display module; when the pressure in the oxygen cylinder is high, the medical staff will reduce the speed of the cart, thereby improving safety. At the same time, the pressure in the oxygen cylinder can be understood through the display module, which can reduce the workload of regularly installing flow meters to monitor the oxygen pressure in the oxygen cylinder in daily work and reduce the burden on staff; therefore, it plays a role in improving safety and work efficiency.

[0011] When the support plate drives the oxygen cylinder upward, the oxygen cylinder contacts the ball bearings, so that the oxygen cylinder is subjected to rolling friction, which reduces the friction force on the oxygen cylinder and prevents the heat generated by friction from being transferred to the oxygen cylinder and causing the temperature of the oxygen cylinder to rise, thereby improving safety. At the same time, under the action of the air supply mechanism, the cavity supplies air to the hole through the conduit, so that the heat of the ball can be dissipated, so that the heat generated by the friction between the ball and the side wall of the hole can be dissipated in time, preventing the heat from being transferred to the oxygen cylinder, further improving the protection effect of the oxygen cylinder.

[0012] As the support plate drives the oxygen cylinder upward, the ball will be moved to the top of the hole due to friction. Therefore, by arranging the conduit on the side wall of the hole, normal exhaust of the conduit can be ensured. In addition, by arranging the ball, the diffusion range of the gas discharged from the hole can be expanded under the action of the arc surface of the ball, thereby increasing the contact area between the gas discharged from the hole and the oxygen cylinder, improving the heat dissipation effect of the oxygen cylinder, and ensuring that the oxygen cylinder can be safely moved to the designated position.

[0013] And under the action of the pressurizing mechanism, the buffer pad expands, thereby being able to fix the oxygen cylinder during transportation, preventing the oxygen cylinder from shaking, and improving the safety during transportation.

[0014] Furthermore, a slide groove is provided on the side wall of the frame; The driving mechanism includes a threaded rod rotatably installed in the slide groove, and a first slider is threadedly sleeved on the threaded rod; a support plate is installed at the bottom of the side wall of the first slider so that the bottom wall of the support plate is located below the bottom wall of the first slider; therefore, when the first slider is located at the bottom of the slide groove, the support plate is in contact with the ground, and a guide rod penetrating the first slider is fixedly installed in the slide groove, and the first slider is slidably sleeved on the guide rod, so during the rotation of the threaded rod, the first slider can only move up and down along the slide groove and will not rotate with the threaded rod.

[0015] The top of the threaded rod passes through the slide slot and extends to the surface of the frame. A turntable is installed at the top of the threaded rod, which can drive the threaded rod to rotate, thereby driving the first slider and the support plate to move to the specified position; the top wall of the frame is provided with fixed holes evenly circumferentially, and the turntable is provided with a through hole, and a fixed rod is installed vertically and slidably in the through hole; when the support plate moves to the specified position, the fixed rod is pressed downward to insert the fixed rod into the fixed hole located on the extension line of the fixed rod, so that the turntable can be fixed at the specified position through the fixed hole and the fixed rod, preventing the threaded rod from rotating freely, thereby ensuring that the support plate can be fixed at the specified position. When the position of the support plate needs to be adjusted again, the fixed rod is pulled upward, and at this time, the fixed rod is out of contact with the fixed hole, and the turntable can be rotated.

[0016] Therefore, the supporting plate can be driven to move up and down along the vehicle frame by rotating the turntable.

[0017] Among them, the positions of the fixing holes correspond one to one with the required stopping positions of the support plates.

[0018] Furthermore, the air supply mechanism includes a bellows sleeved on the threaded rod, the two ends of the bellows are respectively fixedly connected to the first slider and the side wall of the slide groove, and the parts of the threaded rod located on both sides of the first slider are sleeved with bellows, thereby preventing impurities from entering the gap between the threaded rod and the first slider, ensuring that the first slider can move stably and preventing the support plate from bumping; a pressurized chamber is opened on the bellows located on the top wall of the first slider, and an air pipe connected to the cavity is inserted on the side wall of the pressurized chamber.

[0019] Therefore, during the upward movement of the first slider, the bellows is squeezed, and the gas in the pressurized chamber flows into the cavity through the air pipe, thereby providing gas to the cavity. At the same time, an air intake valve connected to the outside world is embedded on the side wall of the pressurized chamber. Therefore, when the first slider moves downward, it ensures that the pressurized chamber can absorb gas and prepare for squeezing again.

[0020] Furthermore, a transverse tube is fixedly mounted on the bottom wall of the frame, air holes are opened on the bottom wall of the transverse tube, and the transverse tube, universal wheels and support wheels are sequentially arranged on the frame from front to back; A reciprocating screw is fixedly installed on the rotating shaft of the supporting wheel, a second slider is threadedly installed on the reciprocating screw, an airbag is installed between the side wall of the second slider and the reciprocating screw, an exhaust valve is embedded on the output end of the airbag, and the output end of the exhaust valve is connected to the cross pipe, and an intake valve is embedded on the airbag.

[0021] When the frame is pushed, the support wheel rotates, and the rotating shaft of the support wheel drives the reciprocating screw to rotate, so that the second slider reciprocates along the reciprocating screw. During this process, the second slider intermittently squeezes and stretches the airbag. When the airbag is squeezed, the gas in the airbag is discharged into the cross tube. At this time, the air pressure in the cross tube increases, and the air holes on the bottom wall of the cross tube blow air to the ground, so that impurities on the ground can be blown away. Therefore, when the universal wheel and the support wheel roll on the ground, the stability is improved, the probability of the frame bumping is reduced, and the transportation safety is improved. When the airbag is stretched, the cross tube is still in a high-pressure state. At this time, the airbag draws air from the outside through the intake valve, ensuring that the cross tube can continue to exhaust air.

[0022] Furthermore, the pressurizing mechanism includes a cavity opened on the buffer pad, the exhaust valve is a three-way valve, the first output end of the exhaust valve is connected to the cross pipe, and the second output end of the exhaust valve extends into the cavity.

[0023] When the airbag is squeezed, part of the gas discharged from the airbag is discharged into the cavity through the second output end of the exhaust valve, so that the gas content in the cavity increases. At this time, the air pressure in the cavity increases, which can make the buffer pad of the elastic material expand. The expanded buffer pad exerts pressure on the oxygen cylinder, and the buffer pad and the ball clamp the oxygen cylinder tightly; therefore, when the frame is bumpy, the stability of the oxygen cylinder is improved, the probability of the oxygen cylinder shaking is reduced, and the protection effect of the oxygen cylinder is improved.

[0024] Furthermore, a pressure relief valve is embedded on the side wall of the cavity.

[0025] When the cushion expands to the maximum, the gas in the cavity is discharged through the pressure relief valve, thereby preventing the cushion from bursting due to excessive gas pressure in the cavity, thus playing a role in protecting the cushion; When the cart drives the oxygen cylinder to move, the oxygen cylinder will shake slightly. At this time, the heat generated by the ball will be transferred to the oxygen cylinder. At the same time, the heat of the oxygen cylinder is transferred to the buffer pad through heat exchange. Therefore, the temperature of the gas in the cavity will increase. Therefore, in the process of venting the pressure relief valve, the gas in the cavity can flow and the gas with higher temperature in the cavity can be transferred, thereby improving the protection effect of the oxygen cylinder.

[0026] Furthermore, an "L"-shaped flow guide tube is installed on the output end of the pressure relief valve; therefore, the flow direction of the gas discharged from the pressure relief valve can be changed. By making the end of the "L"-shaped flow guide tube away from the pressure relief valve face the oxygen cylinder, the gas discharged from the pressure relief valve can impact the surface of the oxygen cylinder, thereby accelerating the air flow rate on the surface of the oxygen cylinder, improving the heat dissipation effect on the oxygen cylinder, and playing a role in improving the protection effect of the oxygen cylinder.

[0027] The present invention also provides a method for using the above-mentioned medical oxygen cylinder cart, comprising the following steps: S1. First, make the frame perpendicular to the ground, and the support plate is parallel to the ground; then rotate the turntable to make the first slider drive the support plate to move downward until the bottom wall of the support plate is in contact with the ground; then transfer the oxygen cylinder to the surface of the support plate; S2. Fix the oxygen cylinder by locking it, then rotate the turntable, drive the first slider to move upward by rotating the threaded rod, and then drive the oxygen cylinder to move to a specified height by the support plate; S3. When the support plate drives the oxygen cylinder to move, the oxygen cylinder contacts the ball bearings and the holes exhaust gas outwards; S4. During the process of pushing the frame to move, the support wheel drives the reciprocating screw to rotate, and the second slider intermittently squeezes and stretches the airbag to supply air to the cross tube and the cavity, the buffer pad expands, and the cross tube blows air toward the ground.

[0028] Compared with the prior art, the present invention has the following beneficial effects: (1) This solution can increase the distance between the oxygen cylinder and the ground during the transfer process by setting up a support plate and a drive assembly. Increasing the distance between the oxygen cylinder and the ground can effectively reduce the risk of the oxygen cylinder tipping over due to uneven ground, bumpy carts, etc. If the oxygen cylinder directly contacts the ground, the valve and accessories may be damaged due to friction or collision, resulting in oxygen leakage or failure to use normally. Therefore, by increasing the distance, this situation can be avoided, thereby improving safety and work efficiency. (2) This solution is provided with holes, balls and an air supply mechanism; under the action of the air supply mechanism, the cavity supplies air to the holes through the conduit, thereby being able to dissipate heat from the balls, so that the heat generated by the friction between the balls and the side walls of the holes can be dissipated in a timely manner, thereby preventing the heat from being transferred to the oxygen cylinder, thereby further improving the protection effect on the oxygen cylinder; (3) This solution is provided with a lock, a cushion and a pressurizing mechanism; when the airbag is squeezed, part of the gas discharged from the airbag is discharged into the cavity through the second output end of the exhaust valve, so that the gas content in the cavity increases. At this time, the air pressure in the cavity increases, so that the cushion made of elastic material can expand. The expanded cushion applies pressure to the oxygen cylinder, and the cushion and the ball clamp the oxygen cylinder tightly; therefore, when the frame bumps, the stability of the oxygen cylinder is improved, the probability of the oxygen cylinder shaking is reduced, and the protection effect of the oxygen cylinder is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 It is a schematic diagram of the back structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 5 This is a schematic diagram of the combined structure of the lock buckle and the buffer pad of the present invention; Figure 6 is a schematic cross-sectional structural diagram of a buffer pad of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the frame of the present invention; Figure 8 It is a schematic diagram of the combined cross-sectional structure of the frame, the support plate and the support plate of the present invention; Fig. 9 The following is a working flow chart of the weight detection module, calculation module, temperature detection module, display module and alarm module of the present invention; Fig.10 is a cross-sectional view of the cross tube of the present invention; Fig.11 It is a combined diagram of the frame and the slideway of the present invention.

[0030] Description of the numbers in the figure: 1. Frame; 2. Universal wheel; 3. Support wheel; 4. Support plate; 5. Hole; 6. Cavity; 7. Conduit; 8. Ball; 9. Lock; 10. Screw; 11. Buffer pad; 12. Threaded rod; 13. First slider; 14. Guide rod; 15. Turntable; 16. Fixing hole; 17. Fixing rod; 18. Bellows; 19. Pressurized chamber; 20. Air pipe; 21. Cross pipe; 22. Reciprocating screw rod; 23. Second slider; 24. Airbag; 25. Exhaust valve; 26. Intake valve; 27. Cavity; 28. Pressure relief valve; 29. ​​Guide pipe; 30. Support plate; 31. Weight detection module; 32. Display module; 33. Calculation module; 34. Temperature detection module; 35. Alarm module; 36. Slide. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 11 , a medical oxygen cylinder cart, comprising a frame 1, on which a universal wheel 2 and a supporting wheel 3 are provided; A support plate 4 is slidably mounted on the side wall of the frame 1, and a driving mechanism is provided on the frame 1 to drive the support plate 4 to move up and down along the frame 1; The surface of the frame 1 is evenly provided with holes 5, a cavity 6 is provided on the frame 1, a conduit 7 is inserted into the bottom wall of the hole 5, the conduit 7 extends into the cavity 6, and an air supply mechanism cooperating with the cavity 6 is provided on the frame 1; A ball 8 is movably embedded in the hole 5, and the end of the conduit 7 is located on the side wall of the hole 5; An arc-shaped lock buckle 9 is hinged on the side wall of the frame 1, a screw 10 is threadedly installed on the free end of the lock buckle 9, a screw hole matching the screw 10 is provided on the frame 1, and a buffer pad 11 is fixedly installed on the side wall of the lock buckle 9; and a pressurizing mechanism matching the buffer pad 11 is provided on the frame 1; A support plate 30 is slidably sleeved on the top wall of the support plate 4, a groove is provided on the bottom wall of the support plate 30, and the support plate 4 is slidably installed in the groove, and a weight detection module 31 is provided on the top wall of the support plate 4, and the weight detection module 31 is located between the support plate 30 and the support plate 4. The weight detection module 31 is a weight sensor, and the weight sensor has removed the weight of the support plate 30 in the initial state, so when the oxygen cylinder is placed on the surface of the support plate 4, the weight sensor can measure the overall weight of the oxygen cylinder; The frame 1 is provided with a display module 32, a calculation module 33, a temperature detection module 34 and an alarm module 35, wherein the temperature detection module 34 is a temperature sensor and the alarm module 35 is a warning light; The temperature detection module 34 sends the detected temperature data to the calculation module 33; the weight detection module 31 sends the detected data to the calculation module 33, and the calculation module 33 calculates the weight and pressure of the oxygen in the oxygen cylinder, and then sends the calculated result to the display module 32, so that medical staff can understand the remaining oxygen in the oxygen cylinder. The calculation module 33 sends the calculated data to the alarm module 35 and the display module 32.

[0033] The calculation module 33 calculates the received data; ; Where m is the actual weight of oxygen in the oxygen cylinder; M1 is the combined weight of the oxygen cylinder and oxygen detected by the weight detection module 31; M0 is the weight of the oxygen cylinder, which is the preset value; Where n is the amount of substance; M is the molar mass of oxygen, which is 32 g / mol; According to the ideal gas state equation: Where P is the pressure in the oxygen cylinder; R represents the molar gas constant, which is 8.314 J / (mol·K); T is the temperature detected by the temperature detection module 34 and is Kelvin temperature; V is the volume of the oxygen cylinder, which is the preset value; The calculation module 33 sends the calculation result to the alarm module 35, and the alarm module 35 judges the received data, thereby improving the safety of the oxygen cylinder transportation process; When P>P0, the alarm module 35 does not work; When P≤P0, the alarm module 35 works to remind the medical staff that the oxygen content in the oxygen cylinder is low; Among them, P0 is the preset value.

[0034] First, under the action of the driving mechanism, the support plate 4 moves downward to the maximum extent. At this time, the medical staff places the oxygen cylinder on the top wall of the support plate 4. After the oxygen cylinder is transferred to the surface of the support plate 4, the lock buckle 9 is rotated to cover the surface of the oxygen cylinder. At this time, the lock buckle 9 and the frame 1 wrap the oxygen cylinder, and then the screw 10 is rotated to screw the screw 10 into the screw hole, so as to limit the position of the oxygen cylinder and prevent the oxygen cylinder from falling from the surface of the support plate 4. In the process of the support plate 4 driving the oxygen cylinder to move, the stability is improved, which plays a role in fixing the oxygen cylinder.

[0035] Then, the support plate 4 is driven upward by the driving mechanism, so that the distance between the oxygen cylinder and the ground can be increased during the transfer process. If the oxygen cylinder directly contacts the ground, the valve and accessories may be damaged due to friction and collision, resulting in oxygen leakage or inability to be used normally. Therefore, by increasing the distance, this situation can be avoided; and finally, the pressure in the oxygen cylinder is displayed through the display module 32; when the pressure in the oxygen cylinder is high, the medical staff will reduce the speed of the cart, thereby improving safety. At the same time, the pressure in the oxygen cylinder can be understood through the display module 32, which can reduce the workload of regularly installing flow meters to monitor the oxygen pressure in the oxygen cylinder in daily work, thereby reducing the burden on staff; therefore, it plays a role in improving safety and work efficiency.

[0036] When the support plate 4 drives the oxygen cylinder to move upward, the oxygen cylinder contacts the ball 8, so that the oxygen cylinder is subjected to rolling friction, which reduces the friction force on the oxygen cylinder and prevents the heat generated by friction from being transferred to the oxygen cylinder and causing the temperature of the oxygen cylinder to rise, thereby improving safety. At the same time, under the action of the air supply mechanism, the cavity 6 supplies air to the hole 5 through the conduit 7, so that the heat of the ball 8 can be dissipated, so that the heat generated by the friction between the ball 8 and the side wall of the hole 5 can be dissipated in time, preventing the heat from being transferred to the oxygen cylinder, thereby further improving the protection effect of the oxygen cylinder.

[0037] As the support plate 4 drives the oxygen cylinder upward, the ball 8 is moved to the top of the hole 5 by friction. Therefore, by setting the conduit 7 on the side wall of the hole 5, the normal exhaust of the conduit 7 can be ensured; and by setting the ball 8, the diffusion range of the gas discharged from the hole 5 can be expanded under the action of the arc surface of the ball 8, thereby increasing the contact area between the gas discharged from the hole 5 and the oxygen cylinder, improving the heat dissipation effect of the oxygen cylinder, and ensuring that the oxygen cylinder can be safely moved to the designated position.

[0038] Furthermore, under the action of the pressurizing mechanism, the buffer pad 11 expands, thereby being able to fix the oxygen cylinder during transportation, preventing the oxygen cylinder from shaking, and improving safety during transportation.

[0039] like Figure 1 , Figure 7 , Fig.11 As shown, a slide groove 36 is provided on the side wall of the frame 1; The driving mechanism includes a threaded rod 12 rotatably installed in the slide groove 36, and a first slider 13 is threadedly sleeved on the threaded rod 12; the support plate 4 is installed at the bottom of the side wall of the first slider 13, so that the bottom wall of the support plate 4 is located below the bottom wall of the first slider 13; therefore, when the first slider 13 is located at the bottom of the slide groove 36, the support plate 4 is in contact with the ground, and a guide rod 14 passing through the first slider 13 is fixedly installed in the slide groove 36, and the first slider 13 is slidably sleeved on the guide rod 14. Therefore, during the rotation of the threaded rod 12, the first slider 13 can only move up and down along the slide groove 36 and will not rotate with the threaded rod 12.

[0040] The top of the threaded rod 12 passes through the slide groove 36 and extends to the surface of the frame 1. A turntable 15 is installed at the top of the threaded rod 12. The turntable 15 can drive the threaded rod 12 to rotate, thereby driving the first slider 13 and the support plate 4 to move to the specified position. The top wall of the frame 1 is provided with fixed holes 16 evenly circumferentially, and the turntable 15 is provided with a through hole, and a fixed rod 17 is installed vertically and slidably in the through hole. When the support plate 4 moves to the specified position, the fixed rod 17 is pressed downward to insert the fixed rod 17 into the fixed hole 16 located on the extension line of the fixed rod 17, so that the turntable 15 can be fixed at the specified position through the fixed hole 16 and the fixed rod 17 to prevent the threaded rod 12 from rotating freely, thereby ensuring that the support plate 4 can be fixed at the specified position. When the position of the support plate 4 needs to be adjusted again, the fixed rod 17 is pulled upward, and at this time, the fixed rod 17 is out of contact with the fixed hole 16, and the turntable 15 can be rotated.

[0041] Therefore, the support plate 4 can be driven to move up and down along the frame 1 by rotating the turntable 15 .

[0042] The positions of the fixing holes 16 correspond one to one with the required stopping positions of the support plate 4 .

[0043] like Figure 7 , Figure 8 As shown, the air supply mechanism includes a bellows 18 sleeved on the threaded rod 12, and the two ends of the bellows 18 are respectively fixedly connected to the first slider 13 and the side walls of the slide groove 36, and the parts of the threaded rod 12 located on both sides of the first slider 13 are sleeved with the bellows 18, so as to prevent impurities from entering the gap between the threaded rod 12 and the first slider 13, ensure that the first slider 13 can move stably, and prevent the support plate 4 from bumping; a pressurizing chamber 19 is opened on the bellows 18 located on the top wall of the first slider 13, and an air pipe 20 connected to the cavity 6 is inserted on the side wall of the pressurizing chamber 19.

[0044] Therefore, during the upward movement of the first slider 13, the bellows 18 is squeezed, and the gas in the pressurized chamber 19 flows into the cavity 6 through the air pipe 20, thereby providing gas to the cavity 6. At the same time, an air intake valve 26 connected to the outside is embedded on the side wall of the pressurized chamber 19. Therefore, when the first slider 13 moves downward, it ensures that the pressurized chamber 19 can absorb gas and prepare for squeezing again.

[0045] like Figure 1 , Fig.10 As shown, a transverse tube 21 is fixedly mounted on the bottom wall of the frame 1, and air holes are opened on the bottom wall of the transverse tube 21. The transverse tube 21, the universal wheel 2 and the support wheel 3 are sequentially arranged on the frame 1 from front to back; A reciprocating screw 22 is fixedly mounted on the rotating shaft of the support wheel 3, a second slider 23 is threadedly mounted on the reciprocating screw 22, an airbag 24 is installed between the side wall of the second slider 23 and the reciprocating screw 22, an exhaust valve 25 is embedded on the output end of the airbag 24, and the output end of the exhaust valve 25 is connected to the cross pipe 21, and an intake valve 26 is embedded on the airbag 24.

[0046] When the frame 1 is pushed, the support wheel 3 rotates, and the rotating shaft of the support wheel 3 drives the reciprocating screw 22 to rotate, so that the second slider 23 reciprocates along the reciprocating screw 22. During this process, the second slider 23 intermittently squeezes the airbag 24 and stretches the airbag 24. When the airbag 24 is squeezed, the gas in the airbag 24 is discharged into the cross tube 21. At this time, the air pressure in the cross tube 21 increases, and the air holes on the bottom wall of the cross tube 21 blow air to the ground, so that impurities on the ground can be blown away. Therefore, when the universal wheel 2 and the support wheel 3 roll on the ground, the stability is improved, the probability of the frame 1 bumping is reduced, and the transportation safety is improved. When the airbag 24 is stretched, the cross pipe 21 is still in a high-pressure state. At this time, the airbag 24 inhales air from the outside through the air intake valve 26, which ensures that the cross pipe 21 can continue to exhaust air.

[0047] like Figure 4 , Figure 5 As shown, the pressurizing mechanism includes a cavity 27 opened on the buffer pad 11 , the exhaust valve 25 is a three-way valve, a first output end of the exhaust valve 25 is connected to the cross pipe 21 , and a second output end of the exhaust valve 25 extends into the cavity 27 .

[0048] When the airbag 24 is squeezed, part of the gas discharged from the airbag 24 is discharged into the cavity 27 through the second output end of the exhaust valve 25, so the gas content in the cavity 27 increases. At this time, the air pressure in the cavity 27 increases, so that the buffer pad 11 made of elastic material can expand. The expanded buffer pad 11 applies pressure to the oxygen cylinder, and the buffer pad 11 and the ball 8 clamp the oxygen cylinder tightly; therefore, when the frame 1 bumps, the stability of the oxygen cylinder is improved, the probability of the oxygen cylinder shaking is reduced, and the protection effect of the oxygen cylinder is improved.

[0049] like Figure 5 , Figure 6 As shown, a pressure relief valve 28 is embedded on the side wall of the cavity 27 .

[0050] When the cushion 11 expands to the maximum extent, the gas in the cavity 27 is discharged through the pressure relief valve 28, thereby preventing the cushion 11 from bursting due to excessive gas pressure in the cavity 27, thereby protecting the cushion 11; When the cart drives the oxygen cylinder to move, the oxygen cylinder will shake slightly. At this time, the heat generated by the ball 8 will be transferred to the oxygen cylinder. At the same time, the heat of the oxygen cylinder is transferred to the buffer pad 11 through heat exchange. Therefore, the temperature of the gas in the cavity 27 will increase. Therefore, during the exhaust process of the pressure relief valve 28, the gas in the cavity 27 can flow and the gas with higher temperature in the cavity 27 can be transferred, thereby improving the protection effect of the oxygen cylinder.

[0051] like Figure 5 As shown, an "L"-shaped flow guide tube 29 is installed on the output end of the pressure relief valve 28; therefore, the flow direction of the gas discharged from the pressure relief valve 28 can be changed. By making the end of the "L"-shaped flow guide tube 29 away from the pressure relief valve 28 face the oxygen cylinder, the gas discharged from the pressure relief valve 28 can impact the surface of the oxygen cylinder, thereby accelerating the air flow rate on the surface of the oxygen cylinder, improving the heat dissipation effect on the oxygen cylinder, and playing a role in improving the protection effect on the oxygen cylinder.

[0052] The present invention also provides a method for using the above-mentioned medical oxygen cylinder cart, comprising the following steps: S1. First, make the frame 1 perpendicular to the ground, and the support plate 4 is parallel to the ground; then rotate the turntable 15, so that the first slider 13 drives the support plate 4 to move downward until the bottom wall of the support plate 4 is in contact with the ground; then transfer the oxygen cylinder to the surface of the support plate 4; S2. Fix the oxygen cylinder by the lock buckle 9, then rotate the turntable 15, and drive the first slider 13 to move upward through the rotation of the threaded rod 12, and then drive the oxygen cylinder to move to a specified height through the support plate 4; S3, when the support plate 4 drives the oxygen cylinder to move, the oxygen cylinder contacts the ball 8, and the hole 5 exhausts air outwards; S4. During the process of pushing the frame 1 to move, the support wheel 3 drives the reciprocating screw 22 to rotate, and the second slider 23 intermittently squeezes and stretches the airbag 24 to supply air to the cross tube 21 and the cavity 27, the buffer pad 11 expands, and the cross tube 21 blows air toward the ground.

[0053] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medical oxygen cylinder cart, comprising a frame (1), wherein the frame (1) is provided with universal wheels (2) and support wheels (3); Features: A support plate (4) is slidably mounted on the side wall of the vehicle frame (1), and a driving mechanism for driving the support plate (4) to move up and down along the vehicle frame (1) is provided on the vehicle frame (1); The surface of the frame (1) is evenly provided with holes (5), the frame (1) is provided with a cavity (6), a conduit (7) is inserted into the bottom wall of the hole (5), the conduit (7) extends into the cavity (6), and the frame (1) is provided with an air supply mechanism that cooperates with the cavity (6); A ball (8) is movably embedded in the hole (5), and the end of the conduit (7) is located on the side wall of the hole (5); An arc-shaped lock buckle (9) is hinged on the side wall of the frame (1); a screw (10) is threadedly mounted on the free end of the lock buckle (9); a screw hole cooperating with the screw (10) is provided on the frame (1); and a buffer pad (11) is fixedly mounted on the side wall of the lock buckle (9); and a pressurizing mechanism cooperating with the buffer pad (11) is provided on the frame (1); The support plate (4) is provided with a weight detection module (31), and the frame (1) is provided with a display module (32), a calculation module (33), a temperature detection module (34) and an alarm module (35); The temperature detection module (34) sends the detected temperature data to the calculation module (33); the weight detection module (31) sends the detected data to the calculation module (33); and the calculation module (33) sends the calculated data to the alarm module (35) and the display module (32).

2. A medical oxygen cylinder cart according to claim 1, characterized in that: A slide groove (36) is provided on the side wall of the frame (1); The driving mechanism comprises a threaded rod (12) rotatably mounted in a slide groove (36), a first sliding block (13) being threadedly sleeved on the threaded rod (12); a guide rod (14) penetrating the first sliding block (13) is fixedly mounted in the slide groove (36); The top end of the threaded rod (12) passes through the slide groove (36) and extends to the surface of the frame (1), and a turntable (15) is installed on the top end of the threaded rod (12); fixing holes (16) are evenly arranged on the top wall of the frame (1), and a through hole is opened on the turntable (15), and a fixing rod (17) is vertically slidably installed in the through hole.

3. A medical oxygen cylinder cart according to claim 2, characterized in that: The air supply mechanism comprises a bellows (18) sleeved on the threaded rod (12), the two ends of the bellows (18) being fixedly connected to the first slider (13) and the side wall of the slide groove (36), respectively, the bellows (18) being provided with a pressurizing chamber (19), and an air pipe (20) communicating with the cavity (6) being inserted into the side wall of the pressurizing chamber (19).

4. A medical oxygen cylinder cart according to claim 3, characterized in that: A transverse tube (21) is fixedly mounted on the bottom wall of the vehicle frame (1), and air holes are provided on the bottom wall of the transverse tube (21). The transverse tube (21), the universal wheel (2) and the support wheel (3) are arranged on the vehicle frame (1) in sequence from front to back; A reciprocating screw (22) is fixedly mounted on the rotating shaft of the support wheel (3), a second slider (23) is threadedly mounted on the reciprocating screw (22), an air bag (24) is installed between the side wall of the second slider (23) and the reciprocating screw (22), an exhaust valve (25) is embedded on the output end of the air bag (24), and the output end of the exhaust valve (25) is communicated with the cross pipe (21), and an intake valve (26) is embedded on the air bag (24).

5. A medical oxygen cylinder cart according to claim 4, characterized in that: The pressurizing mechanism comprises a cavity (27) opened on the buffer pad (11); the exhaust valve (25) is a three-way valve; a first output end of the exhaust valve (25) is in communication with the transverse pipe (21); and a second output end of the exhaust valve (25) extends into the cavity (27).

6. A medical oxygen cylinder cart according to claim 5, characterized in that: A pressure relief valve (28) is embedded on the side wall of the cavity (27).

7. A medical oxygen cylinder cart according to claim 6, characterized in that: An "L"-shaped flow guide pipe (29) is installed on the output end of the pressure relief valve (28).

8. A medical oxygen cylinder cart according to claim 7, characterized in that: A support plate (30) is slidably sleeved on the top wall of the support plate (4), a groove is provided on the bottom wall of the support plate (30), the support plate (4) is slidably mounted in the groove, the weight detection module (31) is arranged on the top wall of the support plate (4), and the weight detection module (31) is located between the support plate (30) and the support plate (4).

9. A medical oxygen cylinder cart according to claim 8, characterized in that: The calculation module (33) calculates the received data; The calculation module (33) sends the calculation result to the alarm module (35).

10. A method for using the medical oxygen cylinder cart according to any one of claims 1 to 9, characterized in that: The steps include: S1. First, the vehicle frame (1) is made perpendicular to the ground, and the support plate (4) is parallel to the ground; then, the turntable (15) is rotated so that the first slider (13) drives the support plate (4) to move downward until the bottom wall of the support plate (4) is in contact with the ground; then, the oxygen cylinder is transferred to the surface of the support plate (4); S2. Fix the oxygen cylinder by means of the lock buckle (9), then rotate the turntable (15), and drive the first slider (13) to move upward by means of the rotation of the threaded rod (12), and then drive the oxygen cylinder to move to a specified height by means of the support plate (4); S3, when the support plate (4) drives the oxygen cylinder to move, the oxygen cylinder contacts the ball (8), and the hole (5) exhausts air outwards; S4. During the process of pushing the vehicle frame (1) to move, the support wheel (3) drives the reciprocating screw (22) to rotate, and the second slider (23) intermittently squeezes and stretches the airbag (24) to supply air to the cross tube (21) and the cavity (27), so that the buffer pad (11) expands and the cross tube (21) blows air toward the ground.

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