A stowable oxygen cylinder carrier for use with a wheelchair

Abstract

This utility model discloses a retractable oxygen cylinder holder for wheelchairs. This holder aims to solve the problem that existing oxygen cylinder holders are inconvenient to place on the wheelchair when patients are carrying them for examinations, and are prone to tipping over during movement, posing a safety hazard. The oxygen cylinder holder is installed on the rear side of a folding wheelchair. It includes a vertical rod, a limiting ring, and a support plate. A U-shaped seat is fixedly connected to the middle of the vertical rod, and a connecting block is fixedly connected to the right side of the limiting ring. The connecting block is fixedly connected to the inside of the U-shaped seat by locking screws. A limiting block is fixedly connected to the bottom end of the vertical rod. This utility model adds an oxygen cylinder holder to the rear of the mounting bracket of a folding wheelchair. The oxygen cylinder holder can be folded without affecting the wheelchair's folding function. When going for examinations, the oxygen cylinder holder can be opened, making it convenient for patients to carry oxygen cylinders without worrying about insufficient oxygen supply or the oxygen cylinder falling and causing danger.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a retractable oxygen cylinder holder for wheelchair use. Background Technology

[0002] As people age, their respiratory systems undergo a series of changes, leading to a decline in respiratory function and an exacerbation of respiratory diseases. Respiratory patients often have poor exercise tolerance and experience worsened shortness of breath after activity, requiring most to use supplemental oxygen. When patients use wheelchairs for examinations, long queues can cause them to need to wait in line, necessitating the use of oxygen bags or cylinders.

[0003] The existing oxygen bags for patients have a relatively small capacity and limited oxygen supply. In cases of lengthy examinations or unexpected situations, insufficient oxygen may occur, affecting the patient's oxygen supply. Furthermore, the pressure inside the oxygen bag gradually decreases with oxygen use, making it impossible to provide a stable oxygen flow rate and accurately meet the patient's oxygen needs. While oxygen cylinders provide sufficient pressure and oxygen supply, most patients need to be pushed in a wheelchair for examinations. It is inconvenient to place the oxygen cylinder on the wheelchair or directly on the footrest for support. This placement method is not sustainable because it lacks support and can easily tip over during wheelchair movement, causing danger. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a retractable oxygen cylinder holder for wheelchair use. This oxygen cylinder holder aims to solve the problem that when patients carry oxygen cylinders for examinations, it is inconvenient to place the oxygen cylinders on the wheelchair, and they are easy to fall over during movement, causing danger.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a retractable oxygen cylinder holder for wheelchairs. The oxygen cylinder holder is installed on the rear side of a folding wheelchair. The holder includes a vertical rod, a limiting ring, and a support plate. A U-shaped seat is fixedly connected to the middle of the vertical rod. A connecting block is fixedly connected to the right side of the limiting ring. The connecting block is fixedly connected to the inside of the U-shaped seat by locking screws. A limiting block is fixedly connected to the bottom end of the vertical rod. Two mounting seats are fixedly connected to the upper surface of the limiting block. A rotating shaft is rotatably connected between the two mounting seats. Torsion springs are fitted on both the front and rear sides of the outer surface of the rotating shaft. The outer surface of the rotating shaft is fixedly connected to the support plate via a connecting plate.

[0008] Preferably, the upper surface of the tray is provided with a positioning groove, and the left side of the tray is provided with a fastening groove.

[0009] Furthermore, the two ends of the torsion spring are fixedly connected to the outer surfaces of the mounting base and the rotating shaft, respectively, and a rubber block is fixedly connected to the upper surface of the limiting block.

[0010] Furthermore, the folding wheelchair includes two mounting brackets, one at the front and one at the back, and a folding seat cushion installed between the two mounting brackets. Front wheels and rear wheels are respectively installed on the front and rear sides of the lower surface of the mounting brackets. The rear sides of the two mounting brackets are fixedly connected by a soft backrest. The upright is fixedly connected to the rear side of the mounting bracket by a connecting rod. A push handle is fixedly connected to the rear top of the mounting bracket.

[0011] Furthermore, the folding seat cushion includes two sets of scissor frames, each including a first supporting diagonal rod and a second supporting diagonal rod. The middle portions of the first and second supporting diagonal rods are rotatably connected via a first damping pivot. An upper crossbar and a lower crossbar are fixedly connected to the middle portion of the mounting bracket. A supporting crossbar is fixedly connected to the top ends of both the first and second supporting diagonal rods. A soft seat cushion is fixedly connected to the upper surfaces of the two supporting crossbars. The bottom ends of both the first and second supporting diagonal rods are rotatably connected to the lower crossbar via connecting sleeves.

[0012] Furthermore, a fixing seat is fixedly connected to the inner side of the upper crossbar, and a positioning groove corresponding to the supporting crossbar is formed on the upper surface of the fixing seat.

[0013] Furthermore, a diagonal rod is fixedly connected to the front side of the mounting bracket, and a foot pedal is rotatably connected to the bottom end of the diagonal rod via a second damping shaft. Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention adds an oxygen cylinder bracket to the rear of the mounting bracket of a folding wheelchair. The oxygen cylinder bracket can be folded without affecting the wheelchair's folding function. When a patient needs oxygen for an examination, the limiting ring is opened to a horizontal position, and then the tray is opened from the buckle groove. The oxygen cylinder is then placed into the positioning groove of the tray from the limiting ring. The weight of the oxygen cylinder prevents the tray from returning to its original position, thus placing the oxygen cylinder on the bracket at the rear of the wheelchair. This makes it more convenient for patients to carry the oxygen cylinder for examinations without worrying about insufficient oxygen supply or the oxygen cylinder falling and causing danger.

[0016] This invention involves installing an oxygen cylinder bracket on the rear side of the mounting bracket for a folding wheelchair. When not in use, the locking screw is loosened, and then the limiting ring drives the connecting block to rotate to the lower side. The locking screw is then tightened to fix the limiting ring. At the same time, the restoring force of the torsion spring allows the rotating shaft and the support plate to rotate to the upper side, thereby folding the limiting ring and the support plate together with the upright. This does not affect the folding function of the wheelchair and allows for better storage when the wheelchair is folded, saving space. Attached Figure Description

[0017] Figure 1 This is a rear-view three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the installation structure of the limiting ring of this utility model.

[0019] Figure 3 This is a schematic diagram of the installation structure of the tray of this utility model.

[0020] Figure 4 This is a front cross-sectional structural diagram of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the present invention viewed from below.

[0022] Figure 6 This is a left-view stereoscopic structural diagram of the present invention.

[0023] The markings in the attached diagram are as follows: 1. Upright pole; 2. Limiting ring; 3. Support plate; 4. U-shaped seat; 5. Connecting block; 6. Locking screw; 7. Limiting block; 8. Mounting seat; 9. Rotating shaft; 10. Torsion spring; 301. Positioning groove; 302. Buckle groove; 11. Mounting bracket; 12. Folding seat cushion; 13. Front wheel; 14. Rear wheel; 15. Soft backrest; 16. Connecting rod; 17. Push handle; 18. Diagonal bar; 19. Second damping rotating shaft; 20. Foot pedal; 1101. Upper crossbar; 1102. Lower crossbar; 1103. Fixed seat; 1201. First supporting diagonal bar; 1202. Second supporting diagonal bar; 1203. First damping rotating shaft; 1204. Supporting crossbar; 1205. Soft seat cushion; 1206. Connecting sleeve. Detailed Implementation

[0024] This specific embodiment is a retractable oxygen cylinder holder for wheelchair use, and its structural schematic diagram is shown below. Figures 1-6As shown, the oxygen cylinder bracket is installed on the rear side of a folding wheelchair. The oxygen cylinder bracket includes a vertical rod 1, a limiting ring 2, and a support plate 3. A U-shaped seat 4 is fixedly connected to the middle of the vertical rod 1. A connecting block 5 is fixedly connected to the right side of the limiting ring 2. The connecting block 5 is fixedly connected to the inside of the U-shaped seat 4 by a locking screw 6. A limiting block 7 is fixedly connected to the bottom end of the vertical rod 1. Two mounting seats 8 are fixedly connected to the upper surface of the limiting block 7. A rotating shaft 9 is rotatably connected between the two mounting seats 8. Torsion springs 10 are sleeved on both the front and rear sides of the outer surface of the rotating shaft 9. The outer surface of the rotating shaft 9 is fixedly connected to the support plate 3 by a connecting plate. An oxygen cylinder can be placed inside the limiting ring 2. The limiting ring 2 can limit the oxygen cylinder around its perimeter, which can fix the oxygen cylinder and prevent it from tipping over.

[0025] like Figure 1 and Figure 3 As shown: In this embodiment, a positioning groove 301 is provided on the upper surface of the tray 3, and a buckle groove 302 is provided on the left side of the tray 3; by opening the tray 3 from the buckle groove 302 and compressing the torsion spring 10, the tray 3 can be opened easily, and the positioning groove 301 limits the bottom of the oxygen tank to prevent the oxygen tank from falling.

[0026] like Figure 1 and Figure 3 As shown: In this embodiment, the two ends of the torsion spring 10 are fixedly connected to the outer surfaces of the mounting base 8 and the rotating shaft 9, respectively. A rubber block is fixedly connected to the upper surface of the limiting block 7, and the limiting block 7 supports the tray 3 to be in a horizontal state.

[0027] like Figure 1 and Figure 5 As shown: In this embodiment, the folding wheelchair includes two mounting brackets 11, one at the front and one at the back, and a folding seat cushion 12 installed between the two mounting brackets 11. Front wheels 13 and rear wheels 14 are respectively installed on the front and rear sides of the lower surface of the mounting brackets 11. The rear sides of the two mounting brackets 11 are fixedly connected by a soft backrest 15. The upright 1 is fixedly connected to the rear side of the mounting brackets 11 by a connecting rod 16. A push handle 17 is fixedly connected to the rear top of the mounting bracket 11. Thus, the front wheels 13 are omnidirectional wheels, the left and right mounting brackets 11 are connected together by the folding seat cushion 12, and the soft backrest 15 is made of fabric and can be folded.

[0028] like Figure 4 and Figure 5As shown: In this embodiment, the folding seat cushion 12 includes two sets of scissor frames, each including a first supporting inclined rod 1201 and a second supporting inclined rod 1202. The middle portions of the first supporting inclined rod 1201 and the second supporting inclined rod 1202 are rotatably connected via a first damping pivot 1203. An upper crossbar 1101 and a lower crossbar 1102 are fixedly connected to the middle portion of the mounting bracket 11. Supporting crossbars 1204 are fixedly connected to the top ends of both the first supporting inclined rod 1201 and the second supporting inclined rod 1202. Soft seat cushions 120 are fixedly connected to the upper surfaces of the two supporting crossbars 1204. 5. The bottom ends of the first support diagonal rod 1201 and the second support diagonal rod 1202 are rotatably connected to the lower crossbar 1102 through the connecting sleeve 1206; by moving the soft seat cushion 1205 upward, the support crossbar 1204 is disengaged from the positioning groove of the fixed seat 1103. Since the soft backrest 15 between the two mounting brackets 11 can be bent, the left and right mounting brackets 11 can approach each other. The first support diagonal rod 1201 and the second support diagonal rod 1202 rotate around the first damping pivot 1203 to fold, thereby achieving better storage and saving space.

[0029] like Figure 5 and Figure 6 As shown: In this embodiment, a fixed seat 1103 is fixedly connected to the inner side of the upper crossbar 1101, and a positioning groove corresponding to the supporting crossbar 1204 is opened on the upper surface of the fixed seat 1103; a diagonal bar 18 is fixedly connected to the front side of the mounting bracket 11, and a foot pedal 20 is rotatably connected to the bottom end of the diagonal bar 18 through a second damping pivot 19. The foot pedal 20 can be opened or folded around the second damping pivot 19; when using the wheelchair, the folding seat cushion 12 is opened so that the supporting crossbar 1204 is located in the positioning groove of the fixed seat 1103, which can support the patient sitting on the soft seat cushion 1205 and improve stability.

[0030] Working principle: An oxygen cylinder bracket is installed on the rear side of the mounting bracket 11 of the folding wheelchair. When not in use, the locking screw 6 is loosened, and then the limiting ring 2 drives the connecting block 5 to rotate to the lower side. Then, the locking screw 6 is tightened to fix the limiting ring 2. At the same time, the restoring force of the torsion spring 10 can make the rotating shaft 9 and the support plate 3 rotate to the upper side, thereby folding the limiting ring 2 and the support plate 3 together with the upright 1. At this time, the oxygen cylinder bracket is folded. Then, the foot pedal 20 is folded around the second damping rotating shaft 19. Next, the soft seat cushion 1205 is moved upward so that the support crossbar 1204 is disengaged from the positioning groove of the fixed seat 1103. Since the soft backrest 15 between the two mounting brackets 11 can be bent, the left and right mounting brackets 11 can approach each other. The first support diagonal bar 1201 and the second support diagonal bar 1202 rotate around the first damping rotating shaft 1203 to fold, thereby achieving better storage.

[0031] When using the wheelchair, unfold the folding seat cushion 12 so that the support crossbar 1204 is located in the positioning groove of the fixed seat 1103, and then unfold the foot pedal 20. The wheelchair can then be used to push the patient. When a patient who needs oxygen needs to go for an examination, unfold the limiting ring 2 to a horizontal position, and then unfold the tray 3 from the buckle groove 302 and compress the torsion spring 10. Then, place the oxygen tank from the limiting ring 2 into the positioning groove 301 of the tray 3. The weight of the oxygen tank can prevent the tray 3 from returning to its original position, thus placing the oxygen tank on the bracket at the rear of the wheelchair. This makes it more convenient for the patient to carry the oxygen tank for examinations without worrying about insufficient oxygen supply or the oxygen tank falling off and causing danger.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A stowable oxygen cylinder holder for use with a wheelchair, the oxygen cylinder holder being mounted on the rear side of a folding wheelchair, characterized in that: The oxygen cylinder bracket includes a pole (1), a limiting ring (2), and a support plate (3). A U-shaped seat (4) is fixedly connected to the middle of the pole (1). A connecting block (5) is fixedly connected to the right side of the limiting ring (2). The connecting block (5) is fixedly connected to the inside of the U-shaped seat (4) by a locking screw (6). A limiting block (7) is fixedly connected to the bottom end of the pole (1). Two mounting seats (8) are fixedly connected to the upper surface of the limiting block (7). A rotating shaft (9) is rotatably connected between the two mounting seats (8). Torsion springs (10) are sleeved on both the front and rear sides of the outer surface of the rotating shaft (9). The outer surface of the rotating shaft (9) is fixedly connected to the support plate (3) by a connecting plate.

2. The wheelchair use stowable oxygen cylinder carrier of claim 1, wherein, The upper surface of the tray (3) is provided with a positioning groove (301), and the left side of the tray (3) is provided with a fastening groove (302).

3. The wheelchair use stowable oxygen cylinder carrier of claim 2, wherein, The two ends of the torsion spring (10) are fixedly connected to the outer surfaces of the mounting base (8) and the rotating shaft (9), respectively, and a rubber block is fixedly connected to the upper surface of the limiting block (7).

4. The wheelchair use stowable oxygen cylinder carrier of claim 1, wherein, The folding wheelchair includes two mounting brackets (11) at the front and rear and a folding seat cushion (12) installed between the two mounting brackets (11). The front wheel (13) and the rear wheel (14) are respectively installed on the front and rear sides of the lower surface of the mounting bracket (11). The rear sides of the two mounting brackets (11) are fixedly connected by a soft backrest (15). The upright (1) is fixedly connected to the rear side of the mounting bracket (11) by a connecting rod (16). A push handle (17) is fixedly connected to the rear side of the top of the mounting bracket (11).

5. The wheelchair use stowable oxygen cylinder carrier of claim 4, wherein, The folding seat cushion (12) includes two sets of scissor frames, each including a first support diagonal rod (1201) and a second support diagonal rod (1202). The middle parts of the first support diagonal rod (1201) and the second support diagonal rod (1202) are rotatably connected by a first damping pivot (1203). The middle part of the mounting bracket (11) is fixedly connected to an upper crossbar (1101) and a lower crossbar (1102). The top ends of the first support diagonal rod (1201) and the second support diagonal rod (1202) are both fixedly connected to a support crossbar (1204). A soft seat cushion (1205) is fixedly connected to the upper surface of the two support crossbars (1204). The bottom ends of the first support diagonal rod (1201) and the second support diagonal rod (1202) are rotatably connected to the lower crossbar (1102) through a connecting sleeve (1206).

6. The wheelchair use stowable oxygen cylinder carrier of claim 5, wherein, The inner side of the upper crossbar (1101) is fixedly connected to a fixing seat (1103), and the upper surface of the fixing seat (1103) is provided with a positioning groove corresponding to the supporting crossbar (1204).

7. The retractable oxygen cylinder holder for wheelchairs according to claim 6, characterized in that, The front side of the mounting bracket (11) is fixedly connected to a diagonal rod (18), and the bottom end of the diagonal rod (18) is rotatably connected to a foot pedal (20) through a second damping shaft (19).

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