A transportation device for critically ill patients

Abstract

The present invention discloses a transportation device for critically ill patients, belonging to the technical field of medical appliances; it includes a bracket and a bed board. A plurality of rollers are rotatably installed on the lower side of the bracket. Two control frames are fixedly connected to the side wall of the bed board. A guardrail is installed on the upper side of the two control frames. The right side of the bracket is rotatably connected to a first rotating plate, and the first rotating plate is rotatably connected to the bed board. The left side of the bracket is rotatably connected to a second rotating plate, and the second rotating plate is slidably connected to the bed board. During the transportation of critically ill patients, when the whole device moves on a slope, the electric push rod can be started to adjust the angle of the bed board, so that the bed body is always in a horizontal state, and it will not cause the bed board to be in an inclined state due to driving on the slope, thus preventing the critically ill patients placed on the bed board from moving, and further ensuring a good transportation state.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and in particular to a transport device used for critically ill patients. Background Art

[0002] At present, in the process of transporting critically ill patients, the critically ill patients are first placed on a transport stretcher, and medical staff push the transport stretcher to transport the critically ill patients to an ambulance, and then transfer them from the ambulance to a hospital. The transport stretcher has a simple structure, mainly consisting of a bed board, a bracket, rollers, etc., and has a low manufacturing cost.

[0003] However, in the actual working process, the traditional transport stretcher is an integrated structure. When the transport operation is performed on a slope, the entire bed board is in an inclined state, which may cause the critically ill patients to slide from the bed board, inadvertently increasing the harm to the critically ill patients, and in the process of transportation on the slope, the traditional transport stretcher has no corresponding protective measures, and the staff needs to watch over it very carefully, which not only increases the workload of the staff, but also distracts the staff, thereby indirectly reducing the transport speed. Finally, when the transport operation is performed on the slope, when the medical staff suddenly loses strength, the traditional transport stretcher has no protective measures and may slide along the slope, causing harm to the critically ill patients. Therefore, a transport device for critically ill patients is provided. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a transport device for critically ill patients.

[0005] The present invention adopts the following technical solutions:

[0006] The transfer equipment for critically ill patients comprises a bracket and a bed board, wherein a plurality of rollers are rotatably installed on the lower side of the bracket, and the side walls of the bed board are fixedly connected to two control frames, and guardrails are installed on the upper sides of the two control frames. A first rotating plate is rotatably connected to the right side of the bracket, and the first rotating plate is rotatably connected to the bed board, and a second rotating plate is rotatably connected to the left side of the bracket, and the second rotating plate is slidably connected to the bed board. An adjustment component for adjusting the angle of the bracket and the bed board is installed on the upper side of the bracket, and the adjustment component comprises a gantry rod fixedly installed on the lower side of the bed board, the outer side of the gantry rod is rotatably connected to a first connecting cylinder, the lower side of the first connecting cylinder is rotatably connected to a rotating cylinder, a threaded rod is threadedly connected to the rotating cylinder, an electric push rod is rotatably installed in the rotating cylinder, the threaded rod is rotatably connected to the output end of the electric push rod, the upper side of the bracket is rotatably connected to the second connecting cylinder, and the threaded rod and the second connecting cylinder are rotatably connected.

[0007] Preferably, a control component for controlling the movement of the guardrail is installed inside the control box. The control component includes a fixed frame fixedly installed outside the first connecting cylinder through a connecting plate. The rotating cylinder rotatably penetrates through the fixed frame. A first gear is fixedly connected inside the fixed frame at the position where the rotating cylinder is located. Two first racks are slidably connected inside the fixed frame. The two first racks mesh with the first gear. The ends of the two first racks away from the fixed frame are fixedly connected with a sliding rod. Two sliding plates are slidably connected to the lower side of the bed board. Annular grooves are formed on the side walls of the two sliding plates. The sliding rod is slidably connected with the annular grooves. First connecting rods are further fixedly connected to the outer sides of the two sliding plates. A second connecting rod is slidably connected inside the control box. A third connecting cylinder is rotatably connected to the outer side of the second connecting rod. The first connecting rod is fixedly connected with the third connecting cylinder. Two third connecting rods are fixedly connected to the outer side of the second connecting rod. The two third connecting rods are fixedly connected with the guardrail. A second gear is fixedly connected to the outer side of the second connecting rod. A second rack is fixedly connected to the side wall of the bed board. The second rack meshes with the second toothed ring.

[0008] Preferably, a fixed cylinder is fixedly connected to the lower side of the bracket. A clamping frame is fixedly connected to the lower side of the fixed cylinder. A rotating shaft is rotatably installed inside the clamping frame. The roller is fixedly connected with the rotating shaft. A control component for preventing the roller from reversing is installed inside the bracket. The control component includes a moving frame slidably installed inside the bracket. A first spring is fixedly connected between the moving frame and the bracket. A plurality of limiting plates are fixedly connected to the lower side of the moving frame. A fourth connecting rod is fixedly connected to the side wall of each of the plurality of limiting plates. A fifth connecting rod is fixedly connected to the side wall of the fourth connecting rod. A seventh connecting rod is slidably connected inside the fixed cylinder. A fixed ring is fixedly connected to the outer side of the seventh connecting rod. A third spring is fixedly connected between the fixed ring and the fixed cylinder. A second spring is fixedly connected to the lower side of the seventh connecting rod. A sixth connecting rod is fixedly connected to the lower side of the second spring. A stepped plate is fixedly connected to the lower side of the sixth connecting rod. A groove is formed on the outer side of the roller. A ratchet is fixedly connected inside the groove. A plurality of eighth connecting rods are rotatably installed inside the bracket. A third gear is fixedly connected to the outer side of each of the plurality of eighth connecting rods. A plurality of third racks are slidably installed inside the bracket. The plurality of third racks are grouped in pairs. Each third rack meshes with the third gear. One of the third racks in each group is fixedly connected with the seventh connecting rod, and the other third rack is fixedly connected with the fifth connecting rod.

[0009] Preferably, a plurality of push rods are fixedly installed on the outer side of the bracket. Anti-slip sleeves are fixedly sleeved on the outer sides of the plurality of push rods.

[0010] Preferably, a telescopic rod is rotatably connected to the upper side of the bracket. A top plate is fixedly connected to the outer side of the telescopic rod. A plurality of hooks are fixedly installed on the lower side of the top plate.

[0011] Preferably, a plurality of anti-slip rubber sleeves are rotatably sleeved on the outer side of the guardrail.

[0012] Preferably, a storage frame is fixedly connected inside the bracket, a plurality of eighth connecting rods are threadedly connected inside the storage frame, and rubber protection sleeves are fixedly sleeved on the outer sides of the eighth connecting rods.

[0013] The beneficial effects of the present invention are as follows:

[0014] First, during the transfer of critically ill patients, when the whole device moves on a slope, the electric push rod can be started to adjust the angle of the bed board, so that the bed body is always in a horizontal state, and it will not cause the bed board to be inclined due to driving on the slope, resulting in the movement of the critically ill patients placed on the bed board. Therefore, a good transfer state can be ensured.

[0015] Moreover, when transferring on a slope, the guardrail will also move towards the direction close to the bed board, shortening the distance between the guardrail and the bed board. Thus, better protection for critically ill patients can be formed. And during this process, when the second connecting rod moves to the right, the second connecting rod will rotate clockwise, enabling the guardrail to further form a protective effect on the critically ill patients on the bed board.

[0016] Second, during the transfer on a slope, the reverse rotation of the rollers can be effectively prevented. When the device loses the restriction due to various special circumstances, the whole device will not slide along the slope, thereby improving the overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a transfer device for critically ill patients proposed by the present invention;

[0018] Figure 2 It is a schematic structural diagram of the bracket in a transfer device for critically ill patients proposed by the present invention;

[0019] Figure 3 It is a schematic bottom view connection diagram of a transfer device for critically ill patients proposed by the present invention;

[0020] Figure 4 It is a schematic bottom view connection diagram of the bed board in a transfer device for critically ill patients proposed by the present invention;

[0021] Figure 5 It is a schematic connection diagram of the first connection cylinder and the second connection cylinder in a transfer device for critically ill patients proposed by the present invention;

[0022] Figure 6Schematic connection diagram of the second connecting cylinder in a transportation device for critically ill patients proposed by the present invention;

[0023] Figure 7 Schematic internal connection diagram of the fixed frame in a transportation device for critically ill patients proposed by the present invention;

[0024] Figure 8 Schematic connection diagram of the control box and the guardrail in a transportation device for critically ill patients proposed by the present invention;

[0025] Figure 9 Schematic connection diagram of the moving frame in a transportation device for critically ill patients proposed by the present invention;

[0026] Figure 10 Schematic cross-sectional connection diagram of the fixed cylinder and the roller in a transportation device for critically ill patients proposed by the present invention;

[0027] Figure 11 Schematic simple diagram of different motion states of the bed board and the bracket in a transportation device for critically ill patients proposed by the present invention;

[0028] Figure 12 Schematic connection diagram of the third gear and the third rack in a transportation device for critically ill patients proposed by the present invention.

[0029] In the figure: 1 bracket, 2 bed board, 3 storage box, 4 roller, 5 fixed frame, 6 guardrail, 7 gantry rod, 8 first rotating plate, 9 second rotating plate, 10 first connecting cylinder, 11 rotating cylinder, 12 second connecting cylinder, 13 threaded rod, 14 electric push rod, 15 first gear, 16 first rack, 17 sliding rod, 18 annular groove, 19 sliding plate, 20 first connecting rod, 21 third connecting cylinder, 22 second connecting rod, 23 third connecting rod, 24 second gear, 25 second rack, 26 control box, 27 moving frame, 28 first spring, 29 limiting plate, 30 fourth connecting rod, 31 fifth connecting rod, 32 rotating shaft, 33 clamping frame, 34 fixed cylinder, 35 sixth connecting rod, 36 stepped plate, 37 ratchet, 38 second spring, 39 seventh connecting rod, 40 fixed ring, 41 third spring, 42 top plate, 43 eighth connecting rod, 44 third gear, 45 third rack. Detailed implementation manner

[0030] Refer to Figures 1 - 12, A transfer device for critically ill patients, comprising a bracket 1 and a bed board 2. A plurality of rollers 4 are rotatably installed on the lower side of the bracket 1. Two control frames 26 are fixedly connected to the side wall of the bed board 2. A guardrail 6 is installed on the upper side of the two control frames 26. The right side of the bracket 1 is rotatably connected to a first rotating plate 8, and the first rotating plate 8 is rotatably connected to the bed board 2. The left side of the bracket 1 is rotatably connected to a second rotating plate 9, and the second rotating plate 9 is slidably connected to the bed board 2. The ends of the first rotating plate 8 and the second rotating plate 9 are fixedly connected with connecting rods. The connecting rod fixedly connected to the first rotating plate 8 is rotatably connected to the bed board 2, and the connecting rod fixedly connected to the second rotating plate 9 is slidably connected to the bed board 2. An adjusting component for adjusting the angle between the bracket 1 and the bed board 2 is installed on the upper side of the bracket 1. The adjusting component includes a gantry rod 7 fixedly installed on the lower side of the bed board 2. The outer side of the gantry rod 7 is rotatably connected to a first connecting cylinder 10. The lower side of the first connecting cylinder 10 is rotatably connected to a rotating cylinder 11. A threaded rod 13 is threadedly connected inside the rotating cylinder 11. An electric push rod 14 is rotatably installed inside the rotating cylinder 11. The threaded rod 13 is rotatably connected to the output end of the electric push rod 14. The upper side of the bracket 1 is rotatably connected to a second connecting cylinder 12, and the threaded rod 13 is rotatably connected to the second connecting cylinder 12. A storage frame 3 is fixedly connected inside the bracket 1. A plurality of eighth connecting rods 43 are threadedly connected inside the storage frame 3. A rubber protective sleeve is fixedly sleeved on the outer side of the eighth connecting rod 43. During actual use, corresponding equipment can be placed on the upper side of the eighth connecting rod 43 inside the storage frame 3 for emergencies. An expansion rod is rotatably connected to the upper side of the bracket 1. A top plate 42 is fixedly connected to the outer side of the expansion rod. A plurality of hooks are fixedly installed on the lower side of the top plate 42. Corresponding infusion bags can be hung on the hooks to assist in corresponding rescue measures. A plurality of anti-slip rubber sleeves are rotatably sleeved on the outer side of the guardrail 6. A plurality of push rods are fixedly installed on the outer side of the bracket 1, and anti-slip sleeves are fixedly sleeved on the outer sides of the plurality of push rods;

[0031] Such as Figure 3 , Figure 4 , Figure 5 , Figure 6, first, the electric push rod 14 is a common power device, and there is a self-locking component inside the electric push rod 14. When the electric push rod 14 is not started, under the action of the self-locking component, the electric push rod 14 will keep the rotating cylinder 11 and the threaded rod 13 in a fixed state. Secondly, when using this device to transfer critically ill patients, if encountering a slope, the electric push rod 14 can be started to adjust the actual distance between the electric push rod 14 and the threaded rod 13. During this process, since the rotating cylinder 11 and the threaded rod 13 are threadedly connected, the rotating cylinder 11 will rotate relative to the gantry rod 7 and the threaded rod 13, thereby completing the adjustment operation of the vertical distance between the bed board 2 and the bracket 1 at the gantry rod 7, and enabling an appropriate angle to exist between the bed board 2 and the bracket 1. When the whole device moves on the slope, the bed board 2 will not shift due to the slope, thereby effectively preventing the possibility of critically ill patients falling from the bed board 2, such as Figure 11 , where the dashed part represents the position of the bracket 1. Figure 11 The upper-side drawing in the figure represents the positional relationship between the bed board 2 and the bracket 1 when the whole device is traveling on a horizontal road surface. Figure 11 The lower-side drawing in the figure represents the positional relationship between the bed board 2 and the bracket 1 when the whole device is traveling on a slope road surface. Compared with the upper-side drawing, it is the connection relationship between the bed board 2 and the bracket 1 after adjusting the length between the threaded rod 13 and the rotating cylinder 11. After adjusting the threaded rod 13 and the rotating cylinder 11, the bed board 2 can still be in a horizontal state, without changing due to the slope, and without tilting the bed board 2 when traveling on the slope, which may cause the critically ill patients placed on the bed board 2 to move. Thus, a good transfer state can be ensured. And during the adjustment process using the electric push rod 14, a corresponding detection device, such as a level detector, is fixedly installed on the lower side of the bed board 2. When the staff adjusts the angle of the bed board 2, the level detector can be used as an auxiliary instrument. When it is detected that the bed board 2 is in a horizontal state, the staff needs to immediately turn off the electric push rod 14, finally completing the adjustment of the angle of the bed board 2.

[0032] such as Figure 5 , Figure 7 , Figure 8, a control component for controlling the movement of the guardrail 6 is installed inside the control box 26. The control component includes a fixed frame 5 fixedly installed outside the first connecting cylinder 10 through a connecting plate. The rotating cylinder 11 rotates through the fixed frame 5. A first gear 15 is fixedly connected inside the fixed frame 5. Two first racks 16 are slidably connected inside the fixed frame 5. The two first racks 16 are meshed with the first gear 15. One end of the two first racks 16 away from the fixed frame 5 is fixedly connected with a slide bar 17. Two slide plates 19 are slidably connected to the lower side of the bed board 2. Annular grooves 18 are formed on the side walls of the two slide plates 19. The slide bar 17 is slidably connected with the annular grooves 18. First connecting rods 20 are also fixedly connected to the outer sides of the two slide plates 19. A second connecting rod 22 is slidably connected inside the control box 26. A third connecting cylinder 21 is rotatably connected to the outer side of the second connecting rod 22. The first connecting rod 20 is fixedly connected with the third connecting cylinder 21. Two third connecting rods 23 are fixedly connected to the outer side of the second connecting rod 22. The two third connecting rods 23 are fixedly connected with the guardrail 6. A second gear 24 is fixedly connected to the outer side of the second connecting rod 22. A second rack 25 is fixedly connected to the side wall of the bed board 2. The second rack 25 is meshed with the second toothed ring;

[0033] First, under normal circumstances, the guardrail 6 and the bed board 2 are in a vertical state. When the device moves on a slope, when the electric push rod 14 is started to adjust the actual lengths of the rotating cylinder 11 and the threaded rod 13, the rotating cylinder 11 will rotate on its own. The rotating cylinder 11 drives the first gear 15 to rotate. The first gear 15 drives the two second racks 16 to move towards each other. The second rack 16 drives the slide plate 19 to move towards each other through the slide bar 17. The slide plate 19 drives the second connecting rod 22 to move towards the bed board 2 through the first connecting rod 20 and the third connecting cylinder 21. The second connecting rod 22 drives the guardrail 6 to move towards the bed board 2 through the third connecting rod 23, shortening the distance between the guardrail 6 and the bed board 2, and thus can better protect critically ill patients. And during this process, since the second rack 25 is in a fixed state, based on Figure 8 the direction, during the process of the second connecting rod 22 moving to the right, the second connecting rod 22 will rotate clockwise on its own, so that the guardrail 6 can further protect the critically ill patients on the bed board 2. During the above working process, the guardrails 6 on both sides of the bed board 2 both move towards the bed board 2, and the rotation directions of the guardrails 6 on both sides also move towards the bed board 2, and the center of the annular groove 18 and the center of the moving track of the slide bar 17 relative to the slide plate 19 are in the same center state. From Figure 11It can be seen that when adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13 through the electric push rod 14, it will cause the overall rotation of the first connecting cylinder 10, the second connecting cylinder 12, the rotating cylinder 11 and the threaded rod 13 relative to the bed board 2. Since the sliding plate 19 and the bed board 2 are slidably connected, after adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13, it will cause the sliding rod 17 to slide within the annular groove 18. And when in the horizontal state, the sliding rod 17 is located at the lowermost side of the annular groove 18. Therefore, after adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13, in the vertical direction, it will cause the sliding rod 17 to move upward relative to the sliding plate 19.

[0034] As Figure 9 , Figure 10 , Figure 12 , a fixed cylinder 34 is fixedly connected to the lower side of the bracket 1, a clamping frame 33 is fixedly connected to the lower side of the fixed cylinder 34, a rotating shaft 32 is rotatably installed within the clamping frame 33, the roller 4 and the rotating shaft 32 are fixedly connected, and a control assembly for preventing the roller 4 from reversing is installed within the bracket 1. The control assembly includes a moving frame 27 slidably installed within the bracket 1, a first spring 28 is fixedly connected between the moving frame 27 and the bracket 1, a plurality of limiting plates 29 are fixedly connected to the lower side of the moving frame 27, a fourth connecting rod 30 is fixedly connected to the side walls of the plurality of limiting plates 29, a fifth connecting rod 31 is fixedly connected to the side wall of the fourth connecting rod 30, a seventh connecting rod 39 is slidably connected within the fixed cylinder 34, a fixed ring 40 is fixedly connected to the outside of the seventh connecting rod 39, a third spring 41 is fixedly connected between the fixed ring 40 and the fixed cylinder 34, a second spring 38 is fixedly connected to the lower side of the seventh connecting rod 39, a sixth connecting rod 35 is fixedly connected to the lower side of the second spring 38, a stepped plate 36 is fixedly connected to the lower side of the sixth connecting rod 35, a groove is formed in the outside of the roller 4, and a ratchet 37 is fixedly connected within the groove. A plurality of eighth connecting rods 43 are rotatably installed within the bracket 1, a third gear 44 is fixedly connected to the outside of the plurality of eighth connecting rods 43, a plurality of third racks 45 are slidably installed within the bracket 1, the plurality of third racks 45 are grouped in pairs, and each third rack 45 meshes with the third gear 44. One of the third racks 45 in each group is fixedly connected to the seventh connecting rod 39, and the other third rack 45 is fixedly connected to the fifth connecting rod 31;

[0035] First, a fifth connecting rod 31, a roller 4, a third gear 44, and two third racks 45 form a group. Secondly, in the initial state, the stepped plate 36 does not have any influence on the rotation of the ratchet wheel 37. Then, after adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13, it will cause the sliding rod 17 to move upward relative to the sliding plate 19. The sliding rod 17 drives the first rack 16 to move. The first rack 16 abuts against the moving frame 27 and drives the moving frame 27 to move upward relative to the bed board 2. While compressing the first spring 28, the moving frame 27 drives the limiting plate 29 to move upward. The limiting plate 29 drives the fifth connecting rod 31 to move upward through the fourth connecting rod 30. The fifth connecting rod 31 drives the seventh connecting rod 39 to move downward through the third gear 44 and the third rack 45. While compressing the third spring 41, the seventh connecting rod 39 drives the sixth connecting rod 35 to move downward through the second spring 38. The sixth connecting rod 35 drives the stepped plate 36 to move downward, so as to Figure 10 Based on the direction of Figure 10 , the clockwise rotation of the roller 4 represents the overall movement of the device upward along the slope. During the clockwise rotation of the roller 4, the stepped plate 36 does not obstruct the rotation of the ratchet wheel 37, but the stepped plate 36 will obstruct the counterclockwise rotation of the ratchet wheel 37. Therefore, during the slope transportation process, it can effectively prevent the roller 4 from reversing, and prevent the overall device from sliding along the slope after losing the restriction on the device due to various special situations, thereby improving the overall safety.

[0036] In the present invention, when using this device to transfer critically ill patients, if encountering a slope, the electric push rod 14 can be activated to adjust the actual distance between the electric push rod 14 and the threaded rod 13. During this process, since the rotating cylinder 11 and the threaded rod 13 are threadedly connected, it will cause the rotating cylinder 11 to rotate relative to the gantry rod 7 and the threaded rod 13, thereby completing the adjustment operation of the vertical distance between the bed board 2 and the bracket 1 at the gantry rod 7, and making it possible to have a suitable angle between the bed board 2 and the bracket 1. When the overall device moves on the slope, the bed board 2 will not shift due to the slope, thereby effectively preventing the possibility of critically ill patients falling off the bed board 2. For example Figure 11 , where the dotted line part represents the position of the bracket 1. Figure 11 In the upper side of the attached drawing, it represents the positional relationship between the bed board 2 and the bracket 1 when the overall device is traveling on a horizontal road surface. Figure 11The following figures on the lower middle side represent the positional relationship between the bed board 2 and the bracket 1 when the entire device is driving on a slope road surface. Compared with the figures on the upper side, it is the connection relationship between the bed board 2 and the bracket 1 after adjusting the length between the threaded rod 13 and the rotating cylinder 11. After adjusting the threaded rod 13 and the rotating cylinder 11, the bed board 2 can still be in a horizontal state, without changing due to the slope, and will not be inclined due to driving on the slope, causing the critically ill patients placed on the bed board 2 to move. Furthermore, a good driving state can be ensured. And during the adjustment process using the electric push rod 14, a corresponding detection device, such as a level detector, is fixedly installed on the lower side of the bed board 2. When the staff adjusts the angle of the bed board 2, the level detector can be used as an auxiliary instrument. When it is detected that the bed board 2 is in a horizontal state, the staff needs to immediately turn off the electric push rod 14 to finally complete the adjustment of the angle of the bed board 2;

[0037] Under normal circumstances, the guardrail 6 and the bed board 2 are in a vertical state. When the device moves on a slope, when starting the electric push rod 14 to adjust the actual length of the rotating cylinder 11 and the threaded rod 13, it will cause the rotating cylinder 11 to rotate self - clockwise. The rotating cylinder 11 drives the first gear 15 to rotate, and the first gear 15 drives the two second racks 16 to move towards each other. The second rack 16 drives the slide plate 19 to move towards each other through the slide rod 17. The slide plate 19 drives the second connecting rod 22 to move towards the bed board 2 through the first connecting rod 20 and the third connecting cylinder 21. The second connecting rod 22 drives the guardrail 6 to move towards the bed board 2 through the third connecting rod 23, shortening the distance between the guardrail 6 and the bed board 2. Furthermore, better protection for critically ill patients can be formed. And during this process, since the second rack 25 is in a fixed state, based on Figure 8 the direction, during the right - hand movement of the second connecting rod 22, it will cause the second connecting rod 22 to rotate clockwise, enabling the guardrail 6 to further form a protective effect on the critically ill patients on the bed board 2. During the above - mentioned working process, the guardrails 6 on both sides of the bed board 2 move towards the bed board 2, and the rotation directions of the guardrails 6 on both sides also move towards the bed board 2. And the center of the annular groove 18 and the center of the moving track of the slide rod 17 relative to the slide plate 19 are in a concentric state. From Figure 11It can be seen that when adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13 through the electric push rod 14, the entire assembly of the first connecting cylinder 10, the second connecting cylinder 12, the rotating cylinder 11 and the threaded rod 13 will rotate relative to the bed board 2. Since the sliding plate 19 is slidably connected to the bed board 2, after adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13, the sliding rod 17 will slide within the annular groove 18. And when in the horizontal state, the sliding rod 17 is located at the lowermost side of the annular groove 18. Therefore, after adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13, in the vertical direction, the sliding rod 17 will move upward relative to the sliding plate 19;

[0038] After adjusting the actual lengths of the rotating cylinder 11 and the threaded rod 13, the sliding rod 17 will move upward relative to the sliding plate 19. The sliding rod 17 drives the first rack 16 to move. The first rack 16 abuts against the moving frame 27 and drives the moving frame 27 to move upward relative to the bed board 2. While compressing the first spring 28, the moving frame 27 drives the limiting plate 29 to move upward. The limiting plate 29 drives the fifth connecting rod 31 to move upward through the fourth connecting rod 30. The fifth connecting rod 31 drives the seventh connecting rod 39 to move downward through the third gear 44 and the third rack 45. While compressing the third spring 41, the seventh connecting rod 39 drives the sixth connecting rod 35 to move downward through the second spring 38. The sixth connecting rod 35 drives the stepped plate 36 to move downward, so that Figure 10 Based on the direction of [description missing in the original], the clockwise rotation of the roller 4 represents the upward movement of the entire device along the slope. During the clockwise rotation of the roller 4, the stepped plate 36 will not obstruct the rotation of the ratchet wheel 37, but the stepped plate 36 will obstruct the counterclockwise rotation of the ratchet wheel 37. Therefore, during the movement on the slope, it can effectively prevent the roller 4 from reversing, and prevent the entire device from sliding along the slope after losing the restriction on the device due to various special circumstances, thereby improving the overall safety.

Claims

1. A transport device for critically ill patients, comprising a support and a bed board, characterized in that: A plurality of rollers are rotatably installed on the lower side of the bracket, and the side walls of the bed board are fixedly connected to two control frames, and guardrails are installed on the upper sides of the two control frames. The right side of the bracket is rotatably connected to the first rotating plate, and the first rotating plate and the bed board are rotatably connected. The left side of the bracket is rotatably connected to the second rotating plate, and the second rotating plate and the bed board are slidably connected. An adjustment component for adjusting the angle of the bracket and the bed board is installed on the upper side of the bracket, and the adjustment component includes a gantry rod fixedly installed on the lower side of the bed board, the outer side of the gantry rod is rotatably connected to the first connecting tube, the lower side of the first connecting tube is rotatably connected to the rotating tube, the inner thread of the rotating tube is connected to the threaded rod, an electric push rod is rotatably installed in the rotating tube, the threaded rod and the output end of the electric push rod are rotatably connected, the upper side of the bracket is rotatably connected to the second connecting tube, the threaded rod and the second connecting tube are rotatably connected, and a control component for controlling the movement of the guardrail is installed in the control frame, and the control component includes a gantry rod fixedly installed on the lower side of the bed board through a connecting plate A fixed frame on the outside of the first connecting tube, the rotating tube rotates and passes through the fixed frame, the rotating tube is located in the fixed frame and fixedly connected to the first gear, the fixed frame is slidably connected to two first racks, the two first racks are meshed with the first gear, the two first racks are fixedly connected to the sliding rod at one end away from the fixed frame, the lower side of the bed board is slidably connected to the two slides, the side walls of the two slides are provided with annular grooves, the sliding rod and the annular groove are slidably connected, the outsides of the two slides are also fixedly connected to the first connecting rod, the control frame is slidably connected to the second connecting rod, the outside of the second connecting rod is rotatably connected to the third connecting tube, the first connecting rod and the third connecting tube are fixedly connected, the outside of the second connecting rod is fixedly connected to the two third connecting rods, the two third connecting rods are fixedly connected to the guardrail, the outside of the second connecting rod is fixedly connected to the second gear, the side wall of the bed board is fixedly connected to the second rack, and the second rack is meshed with the second gear ring.

2. A transport device for critically ill patients according to claim 1, characterized in that: The lower side of the bracket is fixedly connected to the fixed cylinder, the lower side of the fixed cylinder is fixedly connected to the clamping frame, a rotating shaft is rotatably installed in the clamping frame, the roller and the rotating shaft are fixedly connected, a control component for preventing the roller from reversing is installed in the bracket, the control component includes a moving frame slidably installed in the bracket, a first spring is fixedly connected between the moving frame and the bracket, a plurality of limit plates are fixedly connected to the lower side of the moving frame, the side walls of the plurality of limit plates are fixedly connected to the fourth connecting rod, the side walls of the fourth connecting rod are fixedly connected to the fifth connecting rod, the seventh connecting rod is slidably connected in the fixed cylinder, the outer side of the seventh connecting rod is fixedly connected to the fixing ring, and the fixing ring and the fixed cylinder are fixedly connected The third spring, the lower side of the seventh connecting rod is fixedly connected to the second spring, the lower side of the second spring is fixedly connected to the sixth connecting rod, the lower side of the sixth connecting rod is fixedly connected to the step plate, a groove is opened on the outer side of the roller, and the ratchet is fixedly connected in the groove, a plurality of eighth connecting rods are rotatably installed in the bracket, the outer sides of the plurality of eighth connecting rods are fixedly connected to the third gear, a plurality of third racks are slidably installed in the bracket, the plurality of third racks are grouped in pairs, and each third rack is meshed with the third gear, one of the third racks in each group is fixedly connected to the seventh connecting rod, and the other third rack is fixedly connected to the fifth connecting rod.

3. A transport device for critically ill patients according to claim 2, characterized in that: A plurality of push rods are fixedly mounted on the outer side of the bracket, and the outer sides of the plurality of push rods are fixedly sleeved with anti-slip sleeves.

4. A transport device for critically ill patients according to claim 1, characterized in that: The upper side of the bracket is rotatably connected to the telescopic rod, the outer side of the telescopic rod is fixedly connected to the top plate, and a plurality of hooks are fixedly installed on the lower side of the top plate.

5. A transport device for critically ill patients according to claim 1, characterized in that: The outer side of the guardrail is rotatably sleeved with a plurality of anti-skid rubber sleeves.

6. A transport device for critically ill patients according to claim 1, characterized in that: The bracket is fixedly connected to the storage frame, the storage frame is threadedly connected to a plurality of eighth connecting rods, and the outer sides of the eighth connecting rods are fixedly sleeved with rubber protective sleeves.

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