Bidirectional transmission auxiliary mechanism and transfer vehicle

Abstract

The invention relates to the technical field of medical instruments, and discloses a bidirectional transmission auxiliary mechanism and a transfer trolley. The bidirectional transmission auxiliary mechanism comprises a support installed on a transfer trolley body; the supporting platform moves on the support in the first direction, the first direction is parallel to the distribution direction of the two opposite sides of the support so that the supporting platform can move out of the two opposite sides of the support, and the supporting platform is provided with a recycling position and an extending position; the transfer cloth is sleeved and conveyed on the supporting platform; the locking assembly is arranged on the support and used for locking the supporting platform in the recovery position; the mounting seat moves on the bracket along a first direction; the driving assembly is mounted on the mounting seat, is matched with the transfer cloth and is used for driving the transfer cloth to be conveyed; and the linkage assembly is mounted on the mounting seat and has a linkage state and a moving state. The flexibility of the transfer vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular, to a bidirectional transmission auxiliary mechanism and a transfer vehicle. Background Art

[0002] When transferring patients in medical care, a transfer vehicle is used for auxiliary transfer. When the transfer vehicle transfers a patient, the transfer mechanism on the vehicle moves out and approaches the location where the patient is located, so that the patient can be moved onto the transfer cloth of the transfer mechanism. Subsequently, the transfer cloth is first conveyed to move the patient to the middle of the transfer mechanism, and then the transfer mechanism retracts to move the patient onto the transfer vehicle.

[0003] The transfer mechanism of the existing transfer vehicle can usually only move in and out from one side of the transfer vehicle. Referring to the transfer vehicle conveying device with the patent publication number CN220822825U, when the side where the transfer mechanism of the transfer vehicle moves out is not on the side where the patient is located, the direction of the transfer vehicle needs to be turned. However, when the use environment of the transfer vehicle is narrow, it will be difficult for the transfer vehicle to turn, which is not easy to operate and easily affects the transfer efficiency. Summary of the Invention

[0004] In order to improve the flexibility of the transfer vehicle, the present application provides a bidirectional transmission auxiliary mechanism and a transfer vehicle.

[0005] In a first aspect, the present application provides a bidirectional transmission auxiliary mechanism, adopting the following technical solution: A bidirectional transmission auxiliary mechanism, comprising: A bracket, mounted on the body of the transfer vehicle; A support platform, moving on the bracket along a first direction, the first direction being parallel to the distribution direction of the opposite sides of the bracket, so that the support platform can move out from the opposite sides of the bracket, having a retracted position and an extended position; the retracted position is characterized in that the support platform is located directly above the body of the transfer vehicle; the extended position is characterized in that the support platform moves out from one side of the bracket; A transfer cloth, sleeved and conveyed on the support platform; A locking assembly, arranged on the bracket, for locking the support platform in the retracted position; A mounting seat, moving on the bracket along the first direction; A driving assembly, mounted on the mounting seat and cooperating with the transfer cloth, for driving the transfer cloth to convey; and A linkage assembly, mounted on the mounting seat, having a linkage state and a moving state, the linkage state being characterized in that the linkage assembly is relatively locked with the support platform and unlocks the locking assembly; the moving state is characterized in that the linkage assembly is unlocked relative to the support platform, and at this time, the mounting seat can move relative to the support platform locked by the locking assembly.

[0006] By adopting the above technical solution, by setting a support platform that can move bidirectionally along the first direction, the support platform can be moved out from opposite sides of the bracket, and the patient can be transferred on both sides of the vehicle body without turning the direction of the transfer vehicle, thus solving the problem of difficult turning of the transfer vehicle in a narrow environment. When the linkage assembly is in the linkage state, it locks and unlocks the locking assembly with the support platform, so that the mounting seat can drive the support platform to move. When in the moving state, the mounting seat can move independently, realizing the switching between the linkage and independent movement of the support platform and the mounting seat, and improving the operation flexibility and transfer efficiency of the transfer mechanism.

[0007] Optionally, the linkage assembly includes a connecting frame, connected to the mounting seat and located between the support platform and the transfer cloth; a linkage body, adjusted and moved along a second direction on the connecting frame, the second direction extending horizontally and perpendicular to the first direction; and a linkage power member, mounted on the mounting seat and used to drive the linkage body to adjust its position; wherein, the bottom surface of the support platform has a guiding channel and a locking channel for the linkage body to enter and move. The guiding channel allows the linkage body to move along the first direction, and the locking channel communicates with the guiding channel and allows the linkage body to move along the second direction; When the linkage body is opposite to the locking channel and the support platform is in the retracted position, the linkage body can move relative to the connecting frame into the locking channel to lock the linkage body and the support platform.

[0008] By adopting the above technical solution, the linkage assembly enables the linkage body to move along the second direction in the guiding channel and the locking channel through the cooperation of the connecting frame, the linkage body and the linkage power member; when the linkage body moves into the locking channel, it can lock and move synchronously with the support platform, and at the same time, through the structural design, it pushes the locking assembly to unlock, so that the support platform is reliably released when it needs to move and is stably locked in the retracted position, realizing the automatic control of the locking and unlocking of the support platform, and improving the reliability and operation convenience of the mechanism.

[0009] Optionally, a plurality of the linkage bodies are arranged along the first direction on the connecting frame and are divided into two groups along the middle part of the connecting frame, and the two groups of linkage bodies move symmetrically on the connecting frame.

[0010] Optionally, the linkage body includes a base and a rotating sleeve; the linkage body cooperates with the connecting frame and the linkage power member through the base; the rotating sleeve is coaxially rotatably sleeved on the base, and the outer periphery of the rotating sleeve abuts against the support platform, so that when the linkage body moves in the guiding channel, the rotating sleeve can roll relative to the support platform.

[0011] By adopting the above technical solution, the rotating sleeve of the linkage body can roll in the guiding channel, converting the sliding friction between the linkage body and the support platform into rolling friction, reducing the moving resistance, making the movement of the mounting seat driving the linkage body smoother, and reducing component wear.

[0012] Optionally, the bracket is located at the end of the support platform, and the locking channel near the bracket penetrates the end of the bracket. The locking assembly includes a moving seat that moves on the bracket along the second direction and has a plugging portion; and an elastic member that connects the moving seat and the bracket and gives the moving seat an elastic force to move in the direction close to the support platform; wherein, when the support platform is in the retracted position, the plugging portion is opposite to the locking channel at the end of the support platform, and the plugging portion is inserted into the locking channel under the drive of the elastic member; when the linkage body moves into the locking channel, the plugging portion is pushed out of the locking channel.

[0013] By adopting the above technical solution, the locking assembly automatically locks the support platform in the retracted position by pushing the plugging portion of the moving seat into the locking channel through the elastic member, with a simple structure and stable locking force; when the linkage body moves into the locking channel, the plugging portion can be pushed out through a mechanical structure to achieve unlocking, without an additional power source, and the operation process has a high degree of automation.

[0014] Optionally, one end of the plugging portion facing the support platform has a chamfer.

[0015] By adopting the above technical solution, the chamfer design of the plugging portion can guide the plugging portion to insert into the locking channel when the support platform moves to the retracted position, reducing the resistance and collision during insertion and making the locking process smoother.

[0016] Optionally, the driving assembly includes a power shaft rotatably connected to the mounting seat, located between the bottom surface of the support platform and the transfer cloth, and a part of the outer periphery of the power shaft abuts against the transfer cloth; and a driving power member installed on the mounting seat for driving the power shaft to rotate.

[0017] By adopting the above technical solution, the power shaft of the driving component contacts with the transfer cloth, and uses the friction force to drive the transfer cloth to be transmitted, which has a compact structure and high transmission efficiency.

[0018] Optionally, a pressure roller is rotatably connected to the mounting seat, the pressure roller is close to the power shaft, and the transfer cloth is in contact between the power shaft and the pressure roller.

[0019] By adopting the above technical solution, the pressure roller presses the transfer cloth against the power shaft, increasing the contact area and friction between the power shaft and the transfer cloth, making the transfer cloth less likely to slip or wrinkle during transmission, thereby improving the smoothness of transmission.

[0020] Optionally, two opposite sides of the support platform are inclined downward in directions away from each other.

[0021] By adopting the above technical solution, the two sides of the support platform are tilted downward, which can play a guiding role when the patient moves onto the support platform from both sides, and guide the patient to move smoothly to the middle of the support platform.

[0022] In a second aspect, the present application provides a transfer vehicle, which adopts the following technical solution: A transfer vehicle comprises: a transfer vehicle body and the above-mentioned bidirectional transmission auxiliary mechanism.

[0023] In summary, the present application includes at least one of the following beneficial effects: 1. The support platform can be extended from both sides of the transfer vehicle in both directions, and the patient can be transferred in a narrow space without turning the vehicle body, which solves the problem of difficult turning of traditional transfer vehicles and improves the transfer efficiency; 2. The linkage component automatically unlocks the locking component through state switching, so that the support platform and the mounting base can move in conjunction or independently. The operation is convenient and the structure is reliable, which reduces manual intervention and improves the stability of the mechanism operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of Embodiment 1 of the present application; Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 is a perspective view of the cooperation between the support platform and the mounting seat in the first embodiment of the present application; Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 5 This is a schematic diagram of the structure of the mounting seat, the driving assembly and the linkage assembly in the first embodiment of the present application; Figure 6It is a schematic structural diagram of the cooperation between the bottom surface of the support platform and the connecting frame in the first embodiment of the present application; Figure 7 It is Figure 6 The enlarged structural diagram at position C in Figure 8 It is a schematic structural diagram of the cooperation between the locking component and the second frame body in the first embodiment of the present application; Figure 9 It is a schematic structural diagram of the second embodiment of the present application.

[0025] Explanation of reference numerals: 1. Bracket; 101. First frame body; 102. Second frame body; 2. Support platform; 3. Transfer cloth; 4. Mounting seat; 5. Connecting frame; 51. Bidirectional lead screw; 52. Guide rod; 6. Linking body; 61. Base; 62. Rotating sleeve; 7. Linking power component; 71. Second gear set; 72. Second rotating source; 8. Guide channel; 9. Locking channel; 10. Moving seat; 11. Insertion part; 12. Elastic part; 13. Power shaft; 14. Driving power component; 141. First gear set; 142. First rotating source; 15. Pressing roller; 16. Guide rail; 17. Guiding part; 18. Guide bar; 19. Guide groove; 20. Power gear; 21. Chain; 22. Power source; 23. Guide roller; 24. Limiting rod; 25. Enclosure. Detailed implementation manners

[0026] The following will Figure 1 be combined with the attached Figure 9 drawings to further elaborate on the present application.

[0027] Embodiment 1:

[0028] The present application discloses a bidirectional transmission auxiliary mechanism. Referring to Figure 1 and Figure 2 , the bidirectional transmission auxiliary mechanism includes a bracket 1, a support platform 2, a transfer cloth 3, a locking component, a mounting seat 4, a driving component, and a linking component. The bracket 1 is fixed on the body of the transfer vehicle. The support platform 2 moves on the bracket 1. The transfer cloth 3 is sleeved and conveyed on the support platform 2. The locking component is used to lock the support platform 2. The mounting seat 4 also moves on the bracket 1. Both the driving component and the linking component are installed on the bracket 1. The driving component is used to drive the transfer cloth 3 to convey. The linking component is installed on the mounting seat 4 and is used to unlock the locking component and lock the support platform 2 at the same time.

[0029] Referring to Figure 1 and Figure 3, wherein, the brackets 1 are provided at both ends of the transfer vehicle body that are far away from each other, and the two sets of brackets 1 are symmetrically arranged along the center line of the transfer vehicle body. There are two sets of mounting seats 4, and the two sets of mounting seats 4 move on the two sets of brackets 1 respectively. The support platform 2 is in the shape of square plates at both ends, and the support platform 2 is movably matched between the two sets of brackets 1, and both the support platform 2 and the mounting seat 4 move in the first direction, and the first direction is the horizontal extension direction perpendicular to the distribution direction of the two sets of brackets 1. At the same time, the width direction of the support platform 2 is parallel to the first direction, and the upper side of the transfer cloth 3 is attached to the upper surface of the support platform 2 and is conveyed along the width direction of the support platform 2. In addition, the length direction of the support platform 2 is defined as the second direction, and the second direction extends horizontally and is perpendicular to the first direction.

[0030] During use, when the support platform 2 moves relative to the bracket 1, it has a corresponding extended position and a retracted position. Specifically, when the support platform 2 moves out from any one of the opposite sides of the transfer vehicle body, the support platform 2 is in the extended position. At this time, the support platform 2 is close to the side where the patient is located. When the patient moves to the edge of the support platform 2, the patient can be conveyed to the middle of the support platform 2 through the conveyance of the transfer cloth 3. When the support platform 2 moves back above the transfer vehicle body, the support platform 2 is in the retracted position, and at this time, the transfer vehicle body can drive the patient to move.

[0031] It should be noted that both sides of the support platform 2 that are far away from each other in the first direction are inclined downward in the direction of moving away from each other, so as to be able to guide the patient to move onto the support platform 2.

[0032] Refer to Figure 2 , more specifically, each set of brackets 1 includes a first frame body 101 and a second frame body 102. The second frame body 102 is located on the side of the first frame body 101 that is away from the other set of brackets 1. The mounting seat 4 moves on the first frame body 101, and the support platform 2 moves on the second frame body 102. A guide rail 16 extending in the first direction is fixed between the frame bodies on the opposite sides of the transfer vehicle body. The longitudinal section of the guide rail 16 is in the shape of a dovetail. A guiding portion 17 that cooperates with the guide rail 16 is fixed on the mounting seat 4. The guiding portion 17 is sleeved on the guide rail 16 and can slide along the length direction of the guide rail 16, and the dovetail-shaped cross section of the guide rail 16 restricts the mounting seat 4 from moving vertically, thereby guiding the movement of the mounting seat 4. A guiding strip 18 extending in the first direction is fixed at the end of the support platform 2. The second frame body 102 has a guiding groove 19 for the guiding strip 18 to slide in the first direction. The guiding groove 19 penetrates through both ends of the second frame body 102 in the first direction for the guiding strip 18 to slide out. The cooperation between the guiding strip 18 and the guiding groove 19 restricts the support platform 2 from moving vertically and in the second direction.

[0033] Refer to Figure 2 and Figure 3, on each first frame body 101 of each group, a power assembly for driving the corresponding mounting seat 4 to move in the first direction is provided. The power assembly includes a power gear 20 rotatably connected to the bracket 1, a chain 21 transmitted on the power gear 20, and a power source 22 for driving the power gear 20 to rotate. There are two power gears 20, which are distributed at both ends of the bracket 1 away from each other along the first direction, and the axis direction of the power gear 20 is parallel to the second direction. The chain 21 is simultaneously sleeved and transmitted on the two power gears 20. The power source 22 is mounted on the bracket 1. In this embodiment, the power source 22 is a rotating motor capable of rotating forward and backward. The output end of the power source 22 is coaxially fixed to one of the power gears 20 to drive the power gear 20 to rotate, and then drive the chain 21 to be transmitted. One side of the mounting seat 4 is fixed to the chain 21. When the chain 21 is transmitted, it drives the mounting seat 4 to move in the first direction.

[0034] Refer to Figure 4 and Figure 5 , for the driving assembly, the driving assembly is mounted between the two mounting seats 4. Specifically, the driving assembly includes a power shaft 13 and a driving power member 14. The power shaft 13 is rotatably connected between the two mounting seats 4. The axis direction of the power shaft 13 is parallel to the second direction, and the power shaft 13 is located between the support platform 2 and the transfer cloth 3 below the support platform 2. At the same time, the lower side of the power shaft 13 is in contact with the inner side of the transfer cloth 3 facing the support platform 2. When the power shaft 13 rotates relative to the mounting seat 4, the transfer cloth 3 is driven to be transmitted through the friction force between the power shaft 13 and the transfer cloth 3. When the power shaft 13 is stationary relative to the mounting seat 4, the transfer cloth 3 can also be driven to be transmitted on the support platform 2 through the friction force between the power shaft 13 and the transfer cloth 3.

[0035] The driving power member 14 includes a first gear set 141 and a first rotation source 142. The first gear set 141 includes a plurality of gears rotatably connected to the mounting seat 4, and the gears in the first gear set 141 are meshed in sequence. One of the gears is coaxially fixed to the power shaft 13. The first rotation source 142 is a rotating motor capable of rotating forward and backward. The first rotation source 142 is mounted on the mounting seat 4 and is coaxially fixed to the gear in the first gear set 141 away from the bidirectional lead screw 51, and the first rotation source 142 is located outside the transfer cloth 3. The first rotation source 142 drives the power shaft 13 to rotate by driving the gears in the first gear set 141 to rotate.

[0036] To improve the cooperation effect between the power shaft 13 and the transfer cloth 3, a pressure roller 15 parallel to the power shaft 13 is rotatably connected between the two mounting seats 4. There are two pressure rollers 15, and the two pressure rollers 15 are respectively located on both sides of the power shaft 13 along the first direction, and both pressure rollers 15 are close to the power shaft 13. The transfer cloth 3 located on both sides of the pressure roller 15 is abutted between the pressure roller 15 and the power shaft 13, so that the transfer cloth 3 passing through the power shaft 13 is not easily wrinkled, and the pressure roller 15 can increase the contact area between the power shaft 13 and the transfer cloth 3.

[0037] Furthermore, two guide rollers 23 are also rotatably connected between the two mounting seats 4. The two guide rollers 23 are respectively located on both sides of the power shaft 13 along the first direction, and the two guide rollers 23 are close to the lower surface of the support platform 2, so that the transfer cloth 3 is abutted between the guide roller 23 and the lower surface of the support platform 2 to improve the cooperation effect between the transfer cloth 3 and the support platform 2.

[0038] Refer to 4 and Figure 5 For the linkage assembly, the linkage assembly is installed between the two mounting seats 4 and is distributed in two groups along the first direction. The two groups of linkage assemblies are respectively located on opposite sides of the power shaft 13. Specifically, each group of linkage assemblies includes a connecting frame 5, a linkage body 6 and a linkage power member 7. The connecting frame 5 is connected between the two mounting seats 4 and is located between the bottom surface of the support platform 2 and the transfer cloth 3. The connecting frame 5 includes a bidirectional lead screw 51 and a guide rod 52 that are parallel to each other and extend along the second direction. The two ends of the bidirectional lead screw 51 away from each other are respectively rotatably connected to the two mounting seats 4, and the two ends of the guide rod 52 away from each other are respectively fixed to the two mounting seats 4.

[0039] A plurality of linkage bodies 6 are spaced along the length direction of the connecting frame 5. Each linkage member includes a base 61 and a rotating sleeve 62. The base 61 is cylindrical. The base 61 is threadedly sleeved on the outer wall of the bidirectional lead screw 51 and slidably sleeved on the outer wall of the guide rod 52, and the axial direction of the base 61 is parallel to the axial direction of the bidirectional lead screw 51. The rotating sleeve 62 is coaxially rotatably sleeved on the outer periphery of the base 61. The multiple linkage bodies 6 on the connecting frame 5 are divided into two groups with the middle of the bidirectional lead screw 51 as the midpoint and extending to both ends. The two groups of linkage bodies 6 are symmetrically distributed, and the base 61 of one group of linkage bodies 6 is threadedly sleeved on the positive rotation thread section of the bidirectional lead screw 51, and the base 61 of the other group of linkage bodies 6 is threadedly sleeved on the reverse rotation thread section of the bidirectional lead screw 51. When the bidirectional lead screw 51 rotates, the two groups of linkage bodies 6 move towards each other or away from each other.

[0040] The linkage power member 7 includes a second gear set 71 and a second rotation source 72. The second gear set 71 includes a plurality of gears rotatably connected to the mounting base 4, and the gears in the second gear set 71 are sequentially meshed, and one of the gears is coaxially fixed to the bidirectional lead screw 51. The second rotation source 72 is a rotation motor capable of performing forward and reverse rotations. The second rotation source 72 is mounted on the mounting base 4 and is coaxially fixed to the gear in the second gear set 71 that is far from the bidirectional lead screw 51, and the second rotation source 72 is located outside the transfer cloth 3. The second rotation source 72 drives the bidirectional lead screw 51 to rotate by driving the gears in the second gear set 71 to rotate.

[0041] Referring to Figure 6 and Figure 7 , a plurality of guiding channels 8 and locking channels 9 for the linkage body 6 to enter and move are arranged in a cross-array on the bottom surface of the support platform 2. The guiding channels 8 extend along the first length direction and are close to the opposite sides of the support platform 2 for the linkage body 6 to slide along the first direction. The locking channels 9 extend along the second length direction and penetrate through the two ends of the support platform 2 away from each other for the linkage body 6 to slide along the second direction. Among them, the opening depths of the guiding channels 8 and the locking channels 9 are the same, and the outer periphery of the linkage body 6 abuts against the inner top wall of the corresponding channel when moving in the guiding channel 8 or the locking channel 9.

[0042] The linkage body 6 switches between its corresponding linkage state and moving state by moving along the length direction of the connecting frame 5. When the linkage body 6 is in the moving state, the linkage body 6 is located in the guiding channel 8. At this time, when the mounting base 4 moves along the first direction, it can drive the linkage body 6 to roll in the guiding channel 8, so that the movement of the linkage assembly along the first direction will not drive the support platform 2 to move. When the mounting base 4 drives the linkage body 6 to move to be opposite to the locking channel 9, the bidirectional lead screw 51 drives the two groups of linkage bodies 6 cooperating with itself to move away from each other along the axis of the bidirectional lead screw 51 and enter the locking channel 9, so that the linkage body 6 reaches the linkage state. At this time, the linkage body 6 is relatively locked with the support platform 2 in the first direction and unlocks the locking assembly, so that the movement of the linkage assembly along the first direction will drive the support platform 2 to move together.

[0043] It should be noted that there are multiple points on the support platform 2 arranged at intervals along the first direction where the linkage body 6 can be linked and locked. In this embodiment, the support platform 2 is evenly spaced with seven groups of points along the first direction where the linkage body 6 can be linked and locked, and the two points far from each other are respectively close to the two sides of the support platform 2 along the first direction.

[0044] Referring to Figure 4 and Figure 6Thus, when the support platform 2 needs to be moved out from the left side of the transfer vehicle body, the mounting seat 4 is moved to drive the linkage body 6 in the moving state to move to the right side of the transfer vehicle body, and then the linkage body 6 is moved to the linkage state and the locking assembly is unlocked, and then the mounting seat 4 is moved to the left side of the transfer vehicle body to enable the support platform 2 to be moved out from the left side of the transfer vehicle body. Similarly, when the support platform 2 needs to be moved out from the right side of the transfer vehicle body, the mounting seat 4 first drives the linkage body 6 to move to the left side of the transfer vehicle body, and then the linkage body 6 is locked with the support platform 2 and the locking assembly is unlocked, and then the mounting seat 4 can be moved to the right side of the transfer vehicle body to enable the support platform 2 to be moved out from the right side of the transfer vehicle body.

[0045] Reference Figure 7 and Figure 8 , for the locking assembly, the locking assembly includes a moving seat 10 and an elastic member 12. The moving seat 10 moves on the second frame 102 along the second direction, and the elastic member 12 gives the moving seat 10 an elastic force to move toward the direction close to the support platform 2. Specifically, the moving seat 10 is in the shape of a long strip extending along the first direction, and a plurality of block-shaped plug-in parts 11 are fixed at intervals along the first direction on one side of the moving seat 10 facing the end of the support platform 2. When the support platform 2 is in the recovery position, each plug-in part 11 is respectively opposite to each locking channel 9 at the end of the support platform 2. At least two limit rods 24 are distributed on the second frame 102 along the first direction, and the moving seat 10 is slidably mounted on the two limit rods 24 at the same time to guide the movement of the moving seat 10. The elastic member 12 is a spring, and the two ends of the elastic member 12 are respectively connected to the second frame 102 and the side of the moving seat 10 away from the plug-in part 11.

[0046] Among them, one end of the plug-in portion 11 close to the end of the support platform 2 is provided with chamfers on both sides for guiding the plug-in portion 11. When the linkage body 6 is in the moving state, the plug-in portion 11 is pushed by the elastic force of the elastic member 12 to be inserted from the end of the support platform 2 into the relative locking channel 9, so that the plug-in portion 11 locks the support platform 2 in the recovery position, and restricts the support platform 2 in the recovery position from moving along the first direction.

[0047] When the linkage body 6 moves to the linkage state, the linkage body 6 enters the locking channel 9 and pushes the plug-in portion 11 out of the locking channel 9 to unlock the plug-in portion 11 and the support platform 2, so that the linkage body 6 can drive the support platform 2 to move along the first direction.

[0048] The implementation principle of a bidirectional transmission auxiliary mechanism in an embodiment of the present application is: the support platform 2 cooperates with the guide groove 19 of the bracket 1 through the guide bar 18, and can be moved bidirectionally along the first direction to a recovery position or an extended position. When in the recovery position, the plug-in part 11 of the locking assembly is inserted into the locking channel 9 of the support platform 2 under the action of the elastic member 12 to achieve locking.

[0049] When it is necessary to move the support platform 2, the linkage body 6 of the linkage assembly is moved into the locking channel 9 along the second direction under the drive of the linkage power member 7, the insertion portion 11 is pushed out to unlock, and at the same time it is locked with the support platform 2; then the mounting seat 4 drives the linkage body 6 and the support platform 2 to move synchronously through the power assembly, so as to realize the extension of the support platform 2 from the side of the vehicle body. The power shaft 13 of the drive assembly rotates under the drive of the drive power member 14, and drives the transfer cloth 3 to convey by using friction, so as to move the patient to the middle of the support platform 2.

[0050] Embodiment 2:

[0051] The embodiment of the present application discloses a transfer vehicle. Refer to Figure 9 , the transfer vehicle includes a transfer vehicle body and the bidirectional transmission auxiliary mechanism disclosed in Embodiment 1.

[0052] Wherein, the bracket 1 of the bidirectional transmission auxiliary mechanism is fixed on the transfer vehicle body. On both opposite sides of the transfer vehicle body, there are hinged enclosures 25 locked by buckles. When it is necessary to move the support platform 2 out from one side of the transfer vehicle body, it is necessary to first put down the corresponding enclosure 25 so that the support platform 2 can be moved out.

[0053] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A two-way transmission auxiliary mechanism, characterized in that, Comprising: A bracket (1), mounted on the body of the transfer vehicle; A support platform (2), moving along a first direction on the bracket (1), the first direction being parallel to the distribution direction of the opposite sides of the bracket (1), so that the support platform (2) can move out from the opposite sides of the bracket (1), having a retracted position and an extended position; the retracted position is characterized in that the support platform (2) is located directly above the body of the transfer vehicle; the extended position is characterized in that the support platform (2) moves out from one side of the bracket (1); A transfer cloth (3), sleeved and conveyed on the support platform (2); A locking assembly, arranged on the bracket (1), for locking the support platform (2) in the retracted position; A mounting seat (4), moving along the first direction on the bracket (1); A driving assembly, mounted on the mounting seat (4) and cooperating with the transfer cloth (3), for driving the transfer cloth (3) to convey; And A linkage assembly, mounted on the mounting seat (4), having a linkage state and a moving state, the linkage state being characterized in that the linkage assembly is relatively locked with the support platform (2) and unlocks the locking assembly; the moving state is characterized in that the linkage assembly is unlocked relative to the support platform (2), and at this time the mounting seat (4) can move relative to the support platform (2) locked by the locking assembly.

2. The two-way transmission auxiliary mechanism according to claim 1, characterized in that: The linkage assembly includes A connecting frame (5), connected to the mounting seat (4), located between the support platform (2) and the transfer cloth (3); A linkage body (6), adjusted and moved along a second direction on the connecting frame (5), the second direction extending horizontally and perpendicular to the first direction; And A linkage power member (7), mounted on the mounting seat (4), for driving the linkage body (6) to adjust its position; Wherein, the bottom surface of the support platform (2) has a guiding channel (8) and a locking channel (9) for the linkage body (6) to abut and move into, the guiding channel (8) allows the linkage body (6) to move along the first direction, the locking channel (9) is communicated with the guiding channel (8), and allows the linkage body (6) to move along the second direction; When the linkage body (6) is opposite to the locking channel (9) and the support platform (2) is in the retracted position, the linkage body (6) can move relative to the connecting frame (5) into the locking channel (9) to lock the linkage body (6) with the support platform (2).

3. The two-way transmission auxiliary mechanism according to claim 2, characterized in that: A plurality of the linkage bodies (6) are arranged along the first direction on the connecting frame (5), and are divided into two groups along the middle of the connecting frame (5), and the two groups of the linkage bodies (6) move symmetrically on the connecting frame (5).

4. The bidirectional transmission auxiliary mechanism according to claim 2, characterized in that: The linkage body (6) includes a base (61) and a rotating sleeve (62); the linkage body (6) cooperates with the connecting frame (5) and the linkage power member (7) through the base (61); the rotating sleeve (62) is coaxially arranged on the base (61), and the outer periphery of the rotating sleeve (62) abuts against the support platform (2), so that when the linkage body (6) moves in the guiding channel (8), the rotating sleeve (62) can roll relative to the support platform (2).

5. The bidirectional transmission auxiliary mechanism according to claim 2, characterized in that: The bracket (1) is located at the end of the support platform (2) and close to the bracket (1), and the locking channel (9) penetrates through the end of the bracket (1). The locking assembly includes a moving seat (10) that moves along the second direction on the bracket (1) and has a plug-in portion (11); and an elastic member (12) that connects the moving seat (10) and the bracket (1) and gives the moving seat (10) an elastic force to move in the direction close to the support platform (2); wherein, when the support platform (2) is in the retracted position, the plug-in portion (11) is opposite to the locking channel (9) at the end of the support platform (2), and the plug-in portion (11) is inserted into the locking channel (9) under the drive of the elastic member (12); when the linkage body (6) moves into the locking channel (9), the plug-in portion (11) is pushed out of the locking channel (9).

6. The two-way transmission auxiliary mechanism according to claim 5, characterized in that: One end of the plug-in portion (11) facing the support platform (2) has a chamfer.

7. A two-way transmission auxiliary mechanism according to claim 1, characterized in that: The driving assembly includes a power shaft (13) rotatably connected to the mounting seat (4), located between the bottom surface of the support platform (2) and the transfer cloth (3), and a part of the outer periphery of the power shaft (13) abuts against the transfer cloth (3); and a driving power member (14) mounted on the mounting seat (4) for driving the power shaft (13) to rotate.

8. A two-way transmission auxiliary mechanism according to claim 7, characterized in that: A pressure roller (15) is rotatably connected to the mounting seat (4). The pressure roller (15) is close to the power shaft (13), and the transfer cloth (3) abuts between the power shaft (13) and the pressure roller (15).

9. A two-way transmission auxiliary mechanism according to claim 1, characterized in that: The two opposite sides of the support platform (2) are inclined downward in the direction away from each other.

10. A transfer vehicle, characterized in that, including: The transfer vehicle body further includes the bidirectional transmission auxiliary mechanism according to any one of claims 1-9 above.

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