Gas cylinder quick-changing device and ambulance

Abstract

The utility model relates to the field of medical carrying instruments, in particular to a gas cylinder quick-changing device and an ambulance. The gas cylinder quick-changing device is used for solving the technical problem that carrying of an oxygen cylinder downwards from an ambulance or carrying of the oxygen cylinder downwards to the ambulance is strenuous and inconvenient. The ambulance is used for solving the technical problem that the efficiency of replacing oxygen bottles on the ambulance is low. The gas cylinder quick-changing device comprises a gas cylinder fixing frame and a rotating stand column, and the rotating stand column is used for being fixed to a doorway of a compartment of an adaptive ambulance. The gas cylinder fixing frame is rotatably installed on the rotating stand column along one side in the horizontal direction, so that the gas cylinder fixing frame is provided with a retracting position located in the ambulance compartment and an extending position located outside the ambulance compartment.

Description

Technical Field

[0001] The utility model belongs to the field of medical transport equipment, and in particular relates to a gas cylinder quick-change device and an ambulance. Background Art

[0002] According to the requirements of WS / T 292-2008 "Ambulance", the fixed oxygen supply equipment should include two gas sources with a capacity of at least 10L, and equipped with a flow meter and an oxygen switch for quickly switching the oxygen source. In daily work, medical staff need to frequently check the oxygen remaining in the oxygen cylinder on the ambulance so as to replace the oxygen cylinder with insufficient oxygen remaining in time. At present, the oxygen cylinder is usually fixed on the ambulance through a semicircular bracket. When replacing the oxygen cylinder, the medical staff needs to first loosen the screw on the semicircular bracket to make the oxygen cylinder movable; then loosen the pressure reducing valve nut connecting the oxygen cylinder and the oxygen pipeline, and then move the empty oxygen cylinder under the car. After the oxygen cylinder is filled with oxygen, the medical staff needs to move the oxygen cylinder filled with oxygen to the ambulance, then put the oxygen cylinder back on the semicircular bracket in the oxygen cylinder cabinet, then tighten the pressure reducing valve nut connecting the oxygen cylinder and the oxygen pipeline, and finally tighten the screw on the semicircular bracket. During this process, since the oxygen cylinder is heavy and there is a large height difference between the inside and outside of the vehicle, it is very time-consuming and laborious to carry the oxygen cylinder from the top of the vehicle to the bottom of the vehicle or from the bottom of the vehicle to the top of the vehicle, which leads to low efficiency in replacing the oxygen cylinder. Utility Model Content

[0003] The utility model aims to provide a gas cylinder quick-change device to solve the technical problem that it is laborious and inconvenient to carry oxygen cylinders from an ambulance downward or from the bottom to the ambulance; the utility model also aims to provide an ambulance to solve the technical problem of low efficiency in replacing oxygen cylinders in the ambulance.

[0004] The following technical solutions are adopted in this utility model:

[0005] A gas cylinder quick-change device comprises a gas cylinder fixing frame and a rotating column, wherein the rotating column is used to be fixed at the door of an ambulance compartment; the side of the gas cylinder fixing frame can be rotatably mounted on the rotating column around the axis of the rotating column, so that the gas cylinder fixing frame has a retracted position located inside the ambulance compartment and an extended position located outside the ambulance compartment.

[0006] Furthermore, the gas cylinder fixing frame includes a gas cylinder mounting seat and a gas cylinder clamp movably mounted on the gas cylinder fixing frame; the gas cylinder mounting seat is provided with a supporting surface, and a clamping gap is left between the gas cylinder mounting seat and the gas cylinder clamp for fixing and clamping the adapted gas cylinder between the gas cylinder mounting seat and the gas cylinder clamp.

[0007] Furthermore, one end of the gas cylinder clamp is hinged on the gas cylinder mounting seat, and the other end is locked and connected to the gas cylinder mounting seat through a fixed locking structure.

[0008] Furthermore, the fixed locking structure includes a fixed stopper arranged on one of the gas cylinder mounting base and the gas cylinder clamp, and a rotating latch arranged on the other; the rotating latch has a locking position for engaging with the fixed stopper and an unlocking position for disengaging from the fixed stopper in its swing stroke.

[0009] Furthermore, the supporting surface is provided with a positioning and mounting groove adapted to the shape of the gas cylinder.

[0010] Furthermore, the rotating column includes a first fixed section and a second fixed section for fixed connection with the ambulance compartment, and a movable section with two ends respectively rotatingly matched with the first fixed section and the second fixed section; the gas cylinder fixing frame is fixedly installed on the movable section.

[0011] Furthermore, a locking structure is provided between the movable section and the first fixed section and / or between the movable section and the second fixed section to limit the rotation angle of the gas cylinder fixing bracket.

[0012] Furthermore, the first fixed section is a curved section, one end of which is rotationally matched with the movable section, and the other end of which is used for fixed connection with the side wall of the ambulance compartment.

[0013] Furthermore, the movable section and the second fixed section are straight sections, one end of the second fixed section is rotationally matched with the movable section, and the other end is used for fixed connection with the floor of the ambulance compartment.

[0014] Furthermore, a position locking structure is provided on the gas cylinder fixing frame and / or the rotating column to keep the gas cylinder fixing frame in the retracted position.

[0015] Beneficial effects: The utility model proposes a new gas cylinder quick-change device. The gas cylinder quick-change device of the utility model includes a gas cylinder fixing frame and a rotating column, wherein the rotating column is fixed at the door of the ambulance compartment, and the side of the gas cylinder fixing frame can be rotatably installed on the rotating column around the axis of the rotating column, so that the gas cylinder fixing frame has a retracted position located inside the ambulance compartment and an extended position located outside the ambulance compartment. When transporting the gas cylinder from the vehicle to the bottom of the vehicle, it is only necessary to rotate the gas cylinder fixing frame with the gas cylinder to the extended position outside the vehicle, and then remove the gas cylinder from the outside of the vehicle to complete the transportation of the gas cylinder from the vehicle to the bottom of the vehicle. When transporting the gas cylinder from the bottom of the vehicle to the vehicle, it is only necessary to install the gas cylinder on the gas cylinder mounting frame, and rotate the gas cylinder fixing frame with the gas cylinder to the retracted position inside the vehicle. Such a setting avoids the influence of the height difference between the inside and outside of the vehicle on the handling operation, is simple to operate, and saves time and effort, thereby effectively improving the efficiency of gas cylinder transportation, thereby improving the overall efficiency of gas cylinder replacement operations.

[0016] An ambulance comprises an ambulance compartment, a gas cylinder quick-change device is arranged at the door of the ambulance compartment, the gas cylinder quick-change device comprises a gas cylinder fixing frame and a rotating column, the rotating column is used to be fixed at the door adapted to the ambulance compartment; the side of the gas cylinder fixing frame can be rotatably mounted on the rotating column around the axis of the rotating column, so that the gas cylinder fixing frame has a retracted position located in the ambulance compartment and an extended position located outside the ambulance compartment.

[0017] Furthermore, the gas cylinder fixing frame includes a gas cylinder mounting seat and a gas cylinder clamp movably mounted on the gas cylinder fixing frame; the gas cylinder mounting seat is provided with a supporting surface, and a clamping gap is left between the gas cylinder mounting seat and the gas cylinder clamp for fixing and clamping the adapted gas cylinder between the gas cylinder mounting seat and the gas cylinder clamp.

[0018] Furthermore, one end of the gas cylinder clamp is hinged on the gas cylinder mounting seat, and the other end is locked and connected to the gas cylinder mounting seat through a fixed locking structure.

[0019] Furthermore, the fixed locking mechanism includes a fixed stopper arranged on one of the gas cylinder mounting base and the gas cylinder clamp, and a rotating latch arranged on the other; the rotating latch has a locking position for engaging with the fixed stopper and an unlocking position for disengaging from the fixed stopper in its swing stroke.

[0020] Furthermore, the supporting surface is provided with a positioning and mounting groove adapted to the shape of the gas cylinder.

[0021] Furthermore, the rotating column includes a first fixed section and a second fixed section for fixed connection with the ambulance compartment, and a movable section with two ends respectively rotatingly matched with the first fixed section and the second fixed section; the gas cylinder fixing frame is fixedly installed on the movable section.

[0022] Furthermore, a locking structure is provided between the movable section and the first fixed section and / or between the movable section and the second fixed section to limit the rotation angle of the gas cylinder fixing bracket.

[0023] Furthermore, the first fixed section is a curved section, one end of which is rotationally matched with the movable section, and the other end of which is used for fixed connection with the side wall of the ambulance compartment.

[0024] Furthermore, the movable section and the second fixed section are straight sections, one end of the second fixed section is rotationally matched with the movable section, and the other end is used for fixed connection with the floor of the ambulance compartment.

[0025] Furthermore, a position locking structure is provided on the gas cylinder fixing frame and / or the rotating column to keep the gas cylinder fixing frame in the retracted position.

[0026] Beneficial effects: The utility model improves the existing ambulance. Compared with the prior art, the key of the ambulance described in the utility model is that the door of the ambulance compartment of the ambulance described in the utility model is provided with a gas cylinder quick-change device. The gas cylinder quick-change device includes a gas cylinder fixing frame and a rotating column, wherein the rotating column is fixed at the door of the ambulance compartment, and the side of the gas cylinder fixing frame can be rotatably mounted on the rotating column around the axis of the rotating column, so that the gas cylinder fixing frame has a retracted position located in the ambulance compartment and an extended position located outside the ambulance compartment. When transporting the gas cylinder from the vehicle to the bottom of the vehicle, it is only necessary to rotate the gas cylinder fixing frame with the gas cylinder to the extended position outside the vehicle, and then remove the gas cylinder from the outside of the vehicle to complete the transportation of the gas cylinder from the vehicle to the bottom of the vehicle. When transporting the gas cylinder from the bottom of the vehicle to the vehicle, it is only necessary to install the gas cylinder on the gas cylinder mounting frame, and rotate the gas cylinder fixing frame with the gas cylinder to the retracted position located in the vehicle. This setting avoids the impact of the height difference between the inside and outside of the vehicle on the handling operation. It is simple to operate and saves time and effort, thereby effectively improving the efficiency of gas cylinder transportation and the overall efficiency of gas cylinder replacement operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an axial view of an embodiment of the gas cylinder quick-change device and the gas cylinder of the utility model;

[0028] Figure 2 for Figure 1 A front view of

[0029] Figure 3 for Figure 1 Rear view of

[0030] Figure 4 for Figure 1 A schematic cross-sectional view of the middle rotating column cut along the axis of the movable section;

[0031] Figure 5 for Figure 1 Schematic diagram of the structure when the middle gas cylinder fixing frame is in the retracted position;

[0032] Figure 6 for Figure 1 A schematic diagram of the structure when the middle gas cylinder fixing frame is in the extended position;

[0033] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. Gas cylinder quick-change device; 2. Gas cylinder; 3. Gas cylinder fixing frame; 4. Rotating column; 5. Position locking structure; 6. Gas cylinder mounting seat; 7. Gas cylinder clamp; 8. Supporting surface; 9. Clamping gap; 10. Fixed locking structure; 11. Fixed stop block; 12. Rotating latch; 13. Positioning installation groove; 14. First fixed section; 15. Second fixed section; 16. Movable section; 17. Clamping structure; 18. First bearing; 19. Second bearing; 20. Gear shaft convex; 21. Stop portion; 22. Locking pin hole. DETAILED DESCRIPTION

[0034] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0035] The scheme principle of the ambulance described in the utility model:

[0036] An ambulance, wherein a gas cylinder quick-change device 1 is provided at the door of the ambulance compartment. The structure of the gas cylinder quick-change device 1 can be referred to Figure 1-3 As shown, it includes a gas cylinder fixing frame 3 and a rotating column 4. The rotating column 4 is fixed at the door of the ambulance compartment, and the side of the gas cylinder fixing frame 3 can be rotatably installed on the rotating column 4 around the axis of the rotating column 4, so that the gas cylinder fixing frame 3 has a retracted position located inside the ambulance compartment and an extended position located outside the ambulance compartment. The state of the gas cylinder fixing frame 3 in the retracted position can be referred to Figure 5 As shown, the state of the extended position outside the ambulance compartment can be referred to Figure 6 shown.

[0037] When transporting the gas cylinder 2, it is only necessary to rotate the gas cylinder fixing frame 3 with the gas cylinder 2 to the extended position outside the vehicle, and then remove the gas cylinder 2 from outside the vehicle to complete the transportation of the gas cylinder 2 from inside the vehicle to outside the vehicle. When transporting the gas cylinder 2 from under the vehicle to on the vehicle, it is only necessary to install the gas cylinder 2 on the gas cylinder 2 mounting frame, and rotate the gas cylinder fixing frame 3 with the gas cylinder 2 to the retracted position inside the vehicle. Such a setting avoids the influence of the height difference between the inside and outside of the vehicle on the transportation operation, is simple to operate, and saves time and effort, thereby effectively improving the efficiency of transporting the gas cylinder 2, and further improving the overall efficiency of the gas cylinder 2 replacement operation.

[0038] Embodiment 1 of the ambulance described in the utility model:

[0039] An ambulance includes an ambulance compartment, and a gas cylinder quick-change device 1 is arranged at the door of the ambulance compartment. The structure of the gas cylinder quick-change device 1 can be referred to Figure 1-3As shown, it includes a gas cylinder fixing frame 3 and a rotating column 4, wherein the rotating column 4 is fixed at the door of the ambulance compartment, and the side of the gas cylinder fixing frame 3 can be rotatably mounted on the rotating column 4 around the axis of the rotating column 4, so that the gas cylinder fixing frame 3 has a retracted position located inside the ambulance compartment and an extended position located outside the ambulance compartment. The state of the gas cylinder fixing frame 3 in the retracted position can be referred to Figure 5 As shown, the state of the extended position outside the ambulance compartment can be referred to Figure 6 shown.

[0040] When the gas cylinder 2 is carried from the vehicle to the underside of the vehicle, it is only necessary to rotate the gas cylinder fixing frame 3 with the gas cylinder 2 to the extended position outside the vehicle, and then remove the gas cylinder 2 from the outside of the vehicle to complete the transportation of the gas cylinder 2 from the inside of the vehicle to the outside of the vehicle. When the gas cylinder 2 is carried from the underside of the vehicle to the vehicle, it is only necessary to install the gas cylinder 2 on the gas cylinder 2 mounting frame, and rotate the gas cylinder fixing frame 3 with the gas cylinder 2 to the retracted position inside the vehicle.

[0041] The key to this embodiment is that the aforementioned gas cylinder fixing frame 3 includes a gas cylinder mounting seat 6 and a gas cylinder clamp 7. The gas cylinder mounting seat 6 is provided with a supporting surface 8 for supporting the gas cylinder 2, and a clamping gap 9 is left between the gas cylinder mounting seat 6 and the gas cylinder clamp 7, so as to fix and clamp the adapted gas cylinder 2 between the gas cylinder mounting seat 6 and the gas cylinder clamp 7. In this embodiment, the shape of the clamping gap 9 is adapted to the contour of the gas cylinder 2, or an ellipse or other shape with an arc contour is selected. Under the clamping of the gas cylinder clamp 7 and the gas cylinder mounting seat 6, the gas cylinder 2 is restricted in the four horizontal directions of forward, backward, left and right; the supporting surface 8 on the gas cylinder mounting seat 6 restricts the downward freedom of the gas cylinder 2, and the dead weight of the gas cylinder 2, the friction force applied to the gas cylinder 2 by the gas cylinder clamp 7 and the gas cylinder mounting seat 6 make it difficult for the gas cylinder 2 to escape upward from the gas cylinder fixing frame 3. Therefore, the above structure can ensure that the gas cylinder 2 is reliably and stably installed on the gas cylinder fixing frame 3. In the scenarios of vehicle operation and gas cylinder 2 transportation, the gas cylinder 2 is not easy to be separated from the gas cylinder fixing frame 3 due to accidents, thereby ensuring the safety of equipment and personnel in the ambulance. On this basis, one end of the gas cylinder clamp 7 can be hinged on the gas cylinder mounting seat 6, and the other end is locked and connected with the gas cylinder mounting seat 6 through a fixed locking structure 10. When transporting the gas cylinder 2, it is only necessary to open the fixed locking structure 10, turn the gas cylinder clamp 7, and then take away or load the gas cylinder 2. Such convenient operation greatly facilitates the disassembly and assembly of the gas cylinder clamp 7, thereby improving the transportation efficiency of the gas cylinder 2. Of course, flanges can also be set at both ends of the gas cylinder clamp 7, and threaded holes adapted to the above-mentioned flanges can be set on the gas cylinder mounting seat 6, so that the gas cylinder clamp 7 can be installed on the gas cylinder mounting seat 6 through fasteners.

[0042] The aforementioned fixed locking mechanism includes a fixed stopper 11 arranged on one of the gas cylinder mounting seat 6 and the gas cylinder clamp 7, and a rotating latch 12 arranged on the other. In this embodiment, the fixed stopper 11 is arranged on the gas cylinder mounting seat 6, and the rotating latch 12 is arranged on the gas cylinder clamp 7. In other embodiments, the fixed stopper 11 can also be arranged on the gas cylinder clamp 7, and the rotating latch 12 is arranged on the gas cylinder mounting seat 6. The rotating latch 12 described in this embodiment can be rotatably mounted on the gas cylinder clamp 7, and has a locking position for blocking with the fixed stopper 11 and an unlocking position for disengaging from the blocking with the fixed stopper 11 in its swing stroke. When the rotating latch 12 is in the locking position, the rotating latch 12 is blocked with the fixed stopper 11, so that the gas cylinder clamp 7 and the gas cylinder mounting seat 6 can reliably clamp the gas cylinder 2. When the rotating latch 12 is in the unlocking position, the rotating latch 12 is disengaged from the blocking with the fixed stopper 11, so that the gas cylinder clamp 7 and the gas cylinder mounting seat 6 can reliably clamp the gas cylinder 2. When the rotating latch 12 is in the unlocking position, the rotating latch 12 is disengaged from the blocking with the fixed stopper 11, so that the gas cylinder clamp 7 can be flipped relative to the gas cylinder mounting seat 6. The above-mentioned fixing locking mechanism can realize the locking, fixing and unlocking of the gas cylinder clamp 7 by only rotating the rotating latch 12, which is easy to operate, thereby improving the efficiency of transporting the gas cylinder 2 and further improving the efficiency of replacing the gas cylinder 2. Of course, the above-mentioned fixing locking mechanism can also be a fastener mounting hole set on the gas cylinder clamp 7 and a threaded hole set on the gas cylinder mounting seat 6, so that the gas cylinder clamp 7 is kept in a closed position relative to the gas cylinder mounting seat 6 by the fastener.

[0043] The aforementioned supporting surface 8 may be provided with a positioning and mounting groove 13 adapted to the shape of the gas cylinder 2. This facilitates the positioning of the gas cylinder 2 when the gas cylinder 2 is mounted on the gas cylinder fixing frame 3. On the other hand, the positioning groove can also prevent the gas cylinder 2 from accidentally falling out of the gas cylinder fixing frame 3 to a certain extent.

[0044] Embodiment 2 of the ambulance described in the utility model:

[0045] Compared with Example 1, the key point of this embodiment is that the rotating column 4 includes a first fixed section 14 and a second fixed section 15 for fixed connection with the ambulance compartment, and a movable section 16 whose two ends are respectively rotatably matched with the first fixed section 14 and the second fixed section 15. The gas cylinder fixing frame 3 is fixedly mounted on the movable section 16. Due to the heavy weight of the gas cylinder 2, the portion where the gas cylinder fixing frame 3 is connected to the rotating column 4 is subjected to a heavy load. If the gas cylinder fixing frame 3 is directly rotatably mounted on the fixed rotating column 4, the weight of the gas cylinder 2 will aggravate the rotational friction at the portion where the gas cylinder fixing frame 3 is connected to the rotating column 4, thereby affecting the smoothness of the rotation of the gas cylinder fixing frame 3. The above-mentioned setting realizes the rotation of the gas cylinder fixing frame 3 through the kinematic pair on the rotating column 4, and the portion where the gas cylinder 2 is connected to the gas cylinder fixing frame 3 is only used to realize the fixed connection between the gas cylinder fixing frame 3 and the movable section 16. On the one hand, this ensures the rigidity of the portion where the gas cylinder 2 is connected to the gas cylinder fixing frame 3; on the other hand, since the two ends of the movable section 16 are respectively rotationally matched with the first fixed section 14 and the second fixed end, the load of the gas cylinder 2 is shared by the two rotationally matched portions, thereby reducing the friction on any rotationally matched portion, ensuring the smoothness of the rotation of the gas cylinder fixing frame 3, and thus improving the efficiency of the gas cylinder 2 during transportation. Of course, the aforementioned rotating column 4 can also be an integrated rigid fixed column, and the portion of the gas cylinder fixing frame 3 used to cooperate with the rotating column 4 is mounted on the side of the rotating column 4 to realize the rotation of the gas cylinder fixing frame 3 relative to the rotating column 4.

[0046] On the basis of the above, a blocking structure 17 can be provided between the movable section 16 and the first fixed section 14, or between the movable section 16 and the second fixed section 15, or at both positions to limit the rotation angle of the gas cylinder fixing frame 3. Such a setting can prevent the gas cylinder fixing frame 3 from rotating beyond the predetermined stroke to avoid the gas cylinder fixing frame 3 from causing impact on the equipment and personnel inside and outside the vehicle. In this embodiment, the first fixed section 14, the second fixed section 15, and the movable section 16 are all steel pipes. The first fixed section 14 is inserted into the movable section 16, and a gear shaft protrusion 20 is fixedly provided on it. The movable section 16 extends toward the end of the first fixed section 14 with a stopper 21. When the movable section 16 rotates to the retracted position and the extended position relative to the first fixed section 14, the gear shaft protrusion 20 is respectively matched with the two side stops of the stopper 21 to limit the rotation angle of the gas cylinder fixing frame 3. Of course, the movable section 16 can also be inserted into the first fixed section 14, and a gear shaft protrusion 20 is fixedly provided on the movable section 16. A stopper 21 extends from the end of the first fixed section 14 toward the movable section 16 .

[0047] The aforementioned first fixed section 14 is a curved section. One end of the first fixed section 14 is rotatably matched with the movable section 16, and the other end is used to fix the curved pipe to the side wall of the ambulance compartment. Such an arrangement reduces the vertical height of the rotating column 4 and reduces the space occupied by the rotating column 4. At the same time, such an arrangement also enables the first fixed section 14 to have sufficient structural rigidity to resist the influence of the load applied by the gas cylinder fixing frame 3, so that the first fixed section 14 is not easily deformed due to the load of the gas cylinder 2 and the gas cylinder fixing frame 3. Of course, the first fixed section 14 can also be a straight tube. One end of the straight tube is plugged into the movable section 16, and the other end is fixedly connected to the top wall of the ambulance compartment.

[0048] The movable section 16 and the second fixed section 15 are straight sections. One end of the second fixed section 15 is rotatably matched with the movable section 16, and the other end is fixedly connected to the floor of the ambulance compartment. Such an arrangement can directly transfer the load of the gas cylinder fixing frame 3 and the gas cylinder 2 to the floor of the ambulance compartment along the axial direction of the second fixed section 15 and the movable section 16, thereby providing a good supporting effect on the gas cylinder fixing frame 3 and the gas cylinder 2.

[0049] In order to reduce the friction between the first fixed section 14 and the movable section 16, a first bearing 18 may be provided between the two. Figure 4 As shown, a fixed section end plate is welded to the end of the first fixed section 14 facing the movable section 16, and a first bearing 18 is pre-installed on the fixed section end plate through a bolt and nut structure. A step surface is provided on the inner side of one end of the movable section 16 facing the first fixed section 14, and the outer ring of the first bearing 18 is pressed against the step surface under the action of the first fixed section 14. Similarly, in order to reduce the friction between the second fixed section 15 and the movable section 16, a second bearing 19 can be provided between the two. For details, please refer to Figure 4 As shown, a step surface is provided on the inner side of the end of the second fixed section 15 facing the movable section 16, and an end plate of the movable section 16 is welded to one end of the movable section 16 facing the second fixed section 15, and a second bearing 19 is pre-installed on the end plate of the movable section 16 through a bolt and nut structure. The outer ring of the second bearing 19 is pressed against the step surface under the action of the movable section 16.

[0050] A position locking structure 5 is provided on the gas cylinder fixing frame 3, or on the rotating column 4, or on both, so as to keep the gas cylinder fixing frame 3 in the retracted position. It should be noted that in the present embodiment, when the aforementioned position locking structure 5 is provided on the gas cylinder fixing frame 3, the position locking structure 5 may be a lock hook, and a lock shaft that can be hooked with the lock hook is provided at the position of the lock hook corresponding to the retracted position of the ambulance compartment. When the gas cylinder fixing frame 3 is in the retracted position, the lock hook can be manually hooked and connected with the lock shaft to keep the gas cylinder fixing frame 3 fixed in the retracted position. When the aforementioned position locking structure 5 is provided on the rotating column 4, the position locking structure 5 may be a locking pin hole 22 provided at the portion where the first fixed section 14 and the movable section 16 overlap, and the position of the locking pin hole 22 corresponds to the retracted position and the extended position of the gas cylinder fixing frame 3. When the gas cylinder fixing bracket 3 is in the retracted position and the extended position, the locking pin can be inserted into the locking pin hole 22 on the first fixed section 14 and the movable section 16 to keep the gas cylinder fixing bracket 3 in the retracted position and the extended position. Of course, the above two position locking structures 5 can be set at the same time. Or the position locking structure 5 can also be set on the carriage. Specifically, the position locking structure 5 is a movable baffle or block set on the carriage. When the gas cylinder fixing bracket 3 is in the retracted position, the movable baffle or block moves to a position that blocks the gas cylinder fixing bracket 3 to keep the gas cylinder fixing bracket 3 in the retracted position.

[0051] Other parts not mentioned in this embodiment are consistent with those in Embodiment 1.

[0052] Embodiments of the gas cylinder quick-change device of the utility model:

[0053] The embodiment of the gas cylinder quick-change device of the present invention is consistent with the principle of the aforementioned ambulance solution and the gas cylinder quick-change device 1 described in the embodiment, so it will not be described in detail here.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas cylinder quick-change device, characterized in that: It comprises a gas cylinder fixing frame and a rotating column, wherein the rotating column is used to be fixed at the door of the adapted ambulance compartment; the side of the gas cylinder fixing frame can be rotatably mounted on the rotating column around the axis of the rotating column, so that the gas cylinder fixing frame has a retracted position located in the ambulance compartment and an extended position located outside the ambulance compartment, and the gas cylinder fixing frame comprises a gas cylinder mounting seat and a gas cylinder clamp movably mounted on the gas cylinder fixing frame; the gas cylinder mounting seat is provided with a supporting surface, and a clamping gap is reserved between the gas cylinder mounting seat and the gas cylinder clamp for fixing and clamping the adapted gas cylinder between the gas cylinder mounting seat and the gas cylinder clamp, one end of the gas cylinder clamp is hinged to the gas cylinder mounting seat, and the other end is locked and connected to the gas cylinder mounting seat through a fixed locking structure.

2. The gas cylinder quick-change device according to claim 1, characterized in that: The fixed locking structure includes a fixed stopper arranged on one of the gas cylinder mounting base and the gas cylinder clamp, and a rotating latch arranged on the other; the rotating latch has a locking position for engaging with the fixed stopper and an unlocking position for disengaging from the fixed stopper in its swing stroke.

3. The gas cylinder quick-change device according to claim 1, characterized in that: The supporting surface is provided with a positioning and mounting groove which matches the shape of the gas cylinder.

4. The gas cylinder quick-change device according to any one of claims 1 to 3, characterized in that: The rotating column includes a first fixed section and a second fixed section for fixed connection with the ambulance compartment, and a movable section with two ends respectively rotatingly matched with the first fixed section and the second fixed section; the gas cylinder fixing frame is fixedly installed on the movable section.

5. The gas cylinder quick-change device according to claim 4, characterized in that: A locking structure is provided between the movable section and the first fixed section and / or between the movable section and the second fixed section to limit the rotation angle of the gas cylinder fixing bracket.

6. The gas cylinder quick-change device according to claim 4, characterized in that: The first fixed section is a curved section, one end of which is rotationally matched with the movable section, and the other end of which is used for fixed connection with the side wall of the ambulance compartment.

7. The gas cylinder quick-change device according to claim 4, characterized in that: The movable section and the second fixed section are straight sections, one end of the second fixed section is rotationally matched with the movable section, and the other end is used for fixed connection with the floor of the ambulance compartment.

8. The gas cylinder quick-change device according to any one of claims 1 to 3, characterized in that: The gas cylinder fixing frame and / or the rotating column are provided with a position locking structure to keep the gas cylinder fixing frame in the retracted position.

9. An ambulance, comprising an ambulance compartment, characterized in that: A gas cylinder quick-change device is provided at the door of the ambulance compartment, and the gas cylinder quick-change device is the gas cylinder quick-change device according to any one of claims 1-8.

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