Bidirectional transmission auxiliary mechanism and transfer vehicle

Abstract

The present application relates to the technical field of medical devices and discloses a bidirectional transmission auxiliary mechanism and a transfer vehicle. The bidirectional transmission auxiliary mechanism includes a bracket mounted on the transfer vehicle body; a support platform that moves on the bracket along a first direction parallel to the distribution direction of the bracket on opposite sides, so that the support platform can be moved out from the bracket on opposite sides, with a recovery position and an extension position; a transfer cloth that is sleeved and conveyed on the support platform; a locking assembly disposed on the bracket for locking the support platform in the recovery position; a mounting seat that moves on the bracket along the first direction; a driving assembly mounted on the mounting seat and cooperating with the transfer cloth to drive the transfer cloth; and a linkage assembly mounted on the mounting seat, with a linkage state and a moving state. The present application can improve the flexibility of the transfer vehicle.

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 during medical care, a transfer cart is used to assist with the transfer. The transfer mechanism on the cart is moved outwards and closer to the patient, allowing the patient to be moved onto the transfer cloth. The cloth is then moved to the center of the transfer mechanism, and the transfer mechanism is then retracted to allow the patient to be moved onto the cart.

[0003] The transfer mechanism of existing transfer carts typically only allows for movement in and out from one side of the cart. For example, the transfer cart conveying device disclosed in Patent Publication No. CN220822825U requires the cart to be turned when the transfer mechanism's exit side is not on the patient's side. However, when the cart is used in a cramped environment, turning the cart can be difficult, making it difficult to operate and significantly impacting 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, which adopts the following technical solution:

[0006] A bidirectional transmission auxiliary mechanism, comprising:

[0007] The bracket is installed on the transfer vehicle body;

[0008] The support platform moves on the bracket along a first direction, the first direction being parallel to the distribution direction of the two opposite sides of the bracket, so that the support platform can be moved out from the two opposite sides of the bracket, and has a recovery position and an extension position; the recovery position is characterized by the support platform being located directly above the transfer vehicle body; the extension position is characterized by the support platform being moved out from one side of the bracket;

[0009] The transfer cloth is placed on and conveyed to the support platform;

[0010] a locking assembly, disposed on the bracket, for locking the support platform in the recovery position;

[0011] A mounting seat, movable on the bracket along the first direction;

[0012] A driving assembly, mounted on the mounting seat and cooperating with the transfer cloth, for driving the transfer cloth to be transported; and

[0013] A linkage component is installed on the mounting seat and has a linkage state and a mobile state. The linkage state is characterized by the linkage component being relatively locked with the support platform and unlocking the locking component; the mobile state is characterized by the linkage component being unlocked relative to the support platform, at which time the mounting seat can move relative to the support platform locked by the locking component.

[0014] By adopting the above technical solution, a support platform capable of bidirectional movement in a first direction is provided, enabling the support platform to be moved out from opposite sides of the support, allowing patient transfer to be completed on either side of the transfer vehicle without reversing its direction, thereby resolving the difficulty of steering the transfer vehicle in confined environments. The linkage assembly locks with the support platform in the linkage state, and unlocking the locking assembly allows the mounting base to drive the support platform in movement. In the mobile state, the mounting base can move independently, enabling the switching between coordinated and independent movement of the support platform and the mounting base, thereby improving the operational flexibility and transfer efficiency of the transfer mechanism.

[0015] Optionally, the linkage component includes

[0016] a connecting frame connected to the mounting seat and located between the supporting platform and the transfer cloth;

[0017] a linkage body, adjustable and movable on the connecting frame along a second direction, wherein the second direction extends horizontally and is perpendicular to the first direction; and

[0018] A linkage power member, mounted on the mounting seat, for driving the linkage body to adjust its position;

[0019] The bottom surface of the support platform has a guide channel and a locking channel for the linkage body to be inserted into and moved, the guide channel allows the linkage body to move along the first direction, and the locking channel is connected to the guide channel and allows the linkage body to move along the second direction;

[0020] When the linkage body is opposite to the locking channel and the support platform is located at the recovery position, the linkage body can be moved into the locking channel relative to the connecting frame to lock the linkage body and the support platform.

[0021] By adopting the above technical solution, the linkage assembly cooperates with the connecting frame, the linkage body and the linkage power part, so that the linkage body can move in the guide channel and the locking channel along the second direction; when the linkage body moves into the locking channel, it can be locked with the support platform and move synchronously. At the same time, the locking assembly is pushed to unlock through the structural design, so that the support platform can be reliably released when it needs to move and stably locked when it is in the recovery position, realizing the automatic control of locking and unlocking of the support platform, and improving the reliability and operation convenience of the mechanism.

[0022] Optionally, a plurality of linkage bodies are provided on the connecting frame along the first direction, and are divided into two groups along the middle portion of the connecting frame, and the two groups of linkage bodies move symmetrically on the connecting frame.

[0023] 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 is in contact with the support platform, so that when the linkage body moves in the guide channel, the rotating sleeve can roll relative to the support platform.

[0024] By adopting the above technical solution, the rotating sleeve of the linkage body can roll in the guide channel, converting the sliding friction between the linkage body and the support platform into rolling friction, reducing the movement resistance, making the mounting seat drive the linkage body to move more smoothly, and reducing component wear.

[0025] Optionally, the bracket is located at the end of the support platform, and the locking channel close to the bracket passes through the end of the bracket, and the locking assembly includes

[0026] a movable seat, movable on the bracket along the second direction, and having an inserting portion; and

[0027] an elastic member, connecting the movable base and the bracket, and imparting elastic force to the movable base to move toward the supporting platform;

[0028] Wherein, when the support platform is in the recovery position, the plug-in portion is opposite to the locking channel at the end of the support platform, and the plug-in portion is inserted into the locking channel under the drive of the elastic member; when the linkage body moves into the locking channel, the plug-in portion is pushed out of the locking channel.

[0029] By adopting the above technical solution, the locking assembly pushes the plug-in part of the movable seat into the locking channel through the elastic part, thereby realizing automatic locking of the recovery position support platform. The structure is simple and the locking force is stable. When the linkage body moves into the locking channel, the plug-in part can be pushed out through the mechanical structure to achieve unlocking. No additional power source is required, and the operation process is highly automated.

[0030] Optionally, one end of the plug-in portion facing the support platform has a chamfer.

[0031] By adopting the above technical solution, the chamfered design of the plug-in part can guide the insertion of the plug-in part into the locking channel when the support platform moves to the recovery position, reducing resistance and collision during insertion and making the locking process smoother.

[0032] Optionally, the drive assembly includes

[0033] a power shaft rotatably connected to the mounting seat, located between the bottom surface of the support platform and the transfer cloth, and having a portion on the outer periphery of the power shaft that contacts the transfer cloth; and

[0034] The driving power member is installed on the mounting seat and is used to drive the power shaft to rotate.

[0035] By adopting the above technical solution, the power shaft of the driving assembly contacts the transfer cloth and utilizes friction to drive the transfer cloth, resulting in a compact structure and high transmission efficiency.

[0036] 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.

[0037] 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, and improving the smoothness of transmission.

[0038] Optionally, two opposite sides of the support platform are inclined downward in directions away from each other.

[0039] 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.

[0040] In a second aspect, the present application provides a transfer vehicle, which adopts the following technical solution:

[0041] A transfer vehicle comprises a transfer vehicle body and the above-mentioned bidirectional transmission auxiliary mechanism.

[0042] In summary, this application has at least one of the following beneficial effects:

[0043] 1. The support platform can be extended from both sides of the transfer vehicle in both directions, allowing patients to be transferred in narrow spaces without having to turn the vehicle. This solves the problem of difficult steering in traditional transfer vehicles and improves transfer efficiency.

[0044] 2. The linkage component automatically unlocks the locking component through state switching, allowing the support platform and the mounting base to move in conjunction or independently. The operation is convenient and the structure is reliable, reducing manual intervention and improving the stability of the mechanism operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of Example 1 of the present application;

[0046] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0047] Figure 3 This is a perspective view of the support platform and the mounting base in the first embodiment of the present application;

[0048] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0049] Figure 5 This is a schematic diagram of the structure of the mounting base, the driving assembly and the linkage assembly in the first embodiment of the present application;

[0050] Figure 6 This is a schematic diagram of the structure of the bottom surface of the support platform and the connecting frame in the first embodiment of the present application;

[0051] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0052] Figure 8 This is a schematic structural diagram of the locking assembly and the second frame in the first embodiment of the present application;

[0053] Figure 9 It is a structural diagram of Example 2 of the present application.

[0054] Explanation of the accompanying drawings: 1. bracket; 101. first frame; 102. second frame; 2. support platform; 3. transfer cloth; 4. mounting seat; 5. connecting frame; 51. bidirectional screw; 52. guide rod; 6. linkage body; 61. base; 62. rotating sleeve; 7. linkage power member; 71. second gear set; 72. second rotation source; 8. guide channel; 9. locking channel; 10. moving seat; 11. plug-in part; 12. elastic member; 13. power shaft; 14. driving power member; 141. first gear set; 142. first rotation source; 15. pressure roller; 16. guide rail; 17. guide part; 18. guide bar; 19. guide groove; 20. power gear; 21. chain; 22. power source; 23. guide roller; 24. limit rod; 25. enclosure. DETAILED DESCRIPTION

[0055] The following is combined with Figure 1 To the attached Figure 9 This application is described in further detail.

[0056] Example 1:

[0057] The embodiment of the present application discloses a bidirectional transmission auxiliary mechanism. Figure 1 and Figure 2The bidirectional transmission auxiliary mechanism includes a bracket 1, a support platform 2, a transfer cloth 3, a locking assembly, a mounting seat 4, a drive assembly, and a linkage assembly. The bracket 1 is fixed to the transfer vehicle body, the support platform 2 moves on the bracket 1, the transfer cloth 3 is sleeved and transferred to the support platform 2, and the locking assembly is used to lock the support platform 2. The mounting seat 4 also moves on the bracket 1, and the drive assembly and linkage assembly are both mounted on the bracket 1. The drive assembly is used to drive the transfer cloth 3 to be transferred. The linkage assembly is mounted on the mounting seat 4 and is used to unlock the locking assembly and lock the support platform 2 at the same time.

[0058] Reference Figure 1 and Figure 3 , wherein the brackets 1 are provided at both ends of the transfer vehicle body that are away from each other, and the two groups of brackets 1 are symmetrically arranged along the center line of the transfer vehicle body. There are two groups of mounting seats 4, and the two groups of mounting seats 4 move on the two groups of brackets 1 respectively. The support platform 2 is in the shape of a square plate at both ends, and the support platform 2 moves and cooperates between the two groups of brackets 1, and the support platform 2 and the mounting seats 4 both move along the first direction, which is a horizontal extension direction perpendicular to the distribution direction of the two groups 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.

[0059] During use, the support platform 2 has corresponding extended and retracted positions when it moves relative to the support frame 1. Specifically, when the support platform 2 moves out from either side of the transfer vehicle, the support platform 2 is in the extended position, near the patient's side. When the patient moves to the edge of the support platform 2, the transfer cloth 3 can be used to transfer the patient to the center of the support platform 2. When the support platform 2 moves back to the top of the transfer vehicle, the support platform 2 is in the retracted position, and the transfer vehicle can now move the patient.

[0060] It should be noted that the two sides of the support platform 2 that are away from each other in the first direction are tilted downward in the direction away from each other, so as to guide the patient to move onto the support platform 2.

[0061] Reference Figure 2More specifically, each set of brackets 1 includes a first frame 101 and a second frame 102. The second frame 102 is located on the side of the first frame 101 facing away from the other set of brackets 1. The mounting seat 4 moves on the first frame 101, and the support platform 2 moves on the second frame 102. A guide rail 16 extending in a first direction is fixed between the frames on opposite sides of the transfer vehicle body. The longitudinal section of the guide rail 16 is dovetail-shaped. A guide portion 17 that cooperates with the guide rail 16 is fixed on the mounting seat 4. The guide portion 17 is sleeved on the guide rail 16 and can slide along the length direction of the guide rail 16. The dovetail-shaped cross-section of the guide rail 16 limits the vertical movement of the mounting seat 4, thereby guiding the movement of the mounting seat 4. A guide bar 18 extending along the first direction is fixed to the end of the support platform 2, and a guide groove 19 is provided on the second frame 102 for the guide bar 18 to slide along the first direction. The guide groove 19 passes through both ends of the second frame 102 along the first direction for the guide bar 18 to slide out, and the support platform 2 is restricted from moving vertically and in the second direction through the cooperation between the guide bar 18 and the guide groove 19.

[0062] Reference Figure 2 and Figure 3 Each set of first frames 101 is provided with a power assembly for driving the corresponding mounting base 4 to move in the first direction. The power assembly includes a power gear 20 rotatably connected to the bracket 1, a chain 21 transmitted to the power gear 20, and a power source 22 for driving the power gear 20 to rotate. The power gear 20 has two ends that are distributed at the bracket 1 and are separated 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 mounted on and transmitted to the two power gears 20. The power source 22 is installed on the bracket 1. In this embodiment, the power source 22 is a rotating motor capable of forward and reverse rotation. 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, thereby driving the chain 21 to move. The mounting base 4 is fixed to one side of the chain 21. When the chain 21 is transmitted, it drives the mounting base 4 to move in the first direction.

[0063] Reference Figure 4 and Figure 5 As for the drive assembly, the drive assembly is installed between the two mounting seats 4. Specifically, the drive 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 axial direction of the power shaft 13 is parallel to the second direction, and the power shaft 13 is located below the support platform 2 and between the transfer cloth 3. 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 transported by the friction 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 transported on the support platform 2 by the friction between the power shaft 13 and the transfer cloth 3.

[0064] The driving power member 14 includes a first gear set 141 and a first rotation source 142. The first gear set 141 includes multiple gears rotatably connected to the mounting base 4. The gears in the first gear set 141 mesh sequentially, and one gear is coaxially fixed to the power shaft 13. The first rotation source 142 is a rotating motor capable of forward and reverse rotation. The first rotation source 142 is mounted on the mounting base 4 and coaxially fixed to the gear in the first gear set 141 that is away from the bidirectional screw 51. The first rotation source 142 is located outside the transfer cloth 3. The first rotation source 142 drives the power shaft 13 by rotating the gears in the first gear set 141.

[0065] In order to improve the coordination 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 the two 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 easy to wrinkle, and the pressure roller 15 can increase the contact area between the power shaft 13 and the transfer cloth 3.

[0066] Furthermore, two guide rollers 23 are 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 rollers 23 and the lower surface of the support platform 2, so as to improve the coordination effect between the transfer cloth 3 and the support platform 2.

[0067] Refer to 4 and Figure 5 Regarding the linkage assembly, two groups of linkage assemblies are installed between the two mounting seats 4 and distributed along the first direction, with the two groups of linkage assemblies 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 located between the bottom surface of the support platform 2 and the transfer cloth 3. The connecting frame 5 includes a bidirectional screw rod 51 and a guide rod 52 that are parallel to each other and extend along the second direction. The two ends of the bidirectional screw rod 51 are rotatably connected to the two mounting seats 4, and the two ends of the guide rod 52 are fixed to the two mounting seats 4.

[0068] There are multiple linkage bodies 6 spaced apart along the length of the connecting frame 5, and each linkage body includes a base 61 and a rotating sleeve 62. The base 61 is cylindrical, and the base 61 is threadedly sleeved on the outer wall of the bidirectional 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 screw 51. The rotating sleeve 62 is coaxially arranged 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 screw 51 as the midpoint 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 forward-rotating thread section of the bidirectional screw 51, and the base 61 of the other group of linkage bodies 6 is threadedly sleeved on the reverse-rotating thread section of the bidirectional screw 51. When the bidirectional screw 51 rotates, the two groups of linkage bodies 6 move toward or away from each other.

[0069] The linkage power member 7 includes a second gear set 71 and a second rotation source 72. The second gear set 71 includes multiple gears rotatably connected to the mounting base 4. The gears in the second gear set 71 mesh sequentially, and one gear is coaxially fixed with the bidirectional screw 51. The second rotation source 72 is a rotating motor capable of forward and reverse rotation. The second rotation source 72 is mounted on the mounting base 4 and coaxially fixed with the gear in the second gear set 71 that is away from the bidirectional screw 51. The second rotation source 72 is located outside the transfer cloth 3. The second rotation source 72 drives the gears in the second gear set 71 to rotate, thereby driving the bidirectional screw 51 to rotate.

[0070] Reference Figure 6 and Figure 7 The bottom surface of the support platform 2 is provided with a cross-array of guide channels 8 and locking channels 9 for the linkage body 6 to enter and move. The guide channels 8 extend along a first length direction and are adjacent to opposite sides of the support platform 2, allowing the linkage body 6 to slide in the first direction. The locking channels 9 extend along a second length direction and penetrate the two ends of the support platform 2 that are separated from each other, allowing the linkage body 6 to slide in the second direction. The guide channels 8 and locking channels 9 are provided to the same depth. When the linkage body 6 moves in the guide channels 8 or locking channels 9, the outer periphery of the linkage body 6 contacts the inner top wall of the corresponding channel.

[0071] The linkage body 6 switches between its corresponding linkage state and mobile state by moving along the length direction of the connecting frame 5. When the linkage body 6 is in the mobile state, the linkage body 6 is located in the guide channel 8. At this time, when the mounting seat 4 moves along the first direction, it can drive the linkage body 6 to roll in the guide 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 seat 4 drives the linkage body 6 to move relative to the locking channel 9, the bidirectional screw 51 drives the two groups of linkage bodies 6 that cooperate with it to move away from each other along the axis of the bidirectional 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 locked relative to the support platform 2 in the first direction and the locking assembly is unlocked, so that the movement of the linkage assembly along the first direction will drive the support platform 2 to move together.

[0072] It should be noted that the support platform 2 is provided with multiple points at intervals along the first direction for the linkage body 6 to be linked and locked. In this embodiment, the support platform 2 is provided with seven groups of points evenly spaced in the first direction for the linkage body 6 to be linked and locked, and the two points far away from each other are respectively close to the two sides of the support platform 2 along the first direction.

[0073] Reference Figure 4 and Figure 6 Thus, when the support platform 2 needs to be moved out from the left side of the transfer vehicle body, the mounting base 4 is moved to drive the linkage body 6 in the moving state to move to the right side of the transfer vehicle body, the linkage body 6 is moved to the linkage state and the locking assembly is unlocked, and then the mounting base 4 is used to move to the left side of the transfer vehicle body so that the support platform 2 can 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 base 4 first drives the linkage body 6 to move to the left side of the transfer vehicle body, then locks the linkage body 6 with the support platform 2 and unlocks the locking assembly, and then the mounting base 4 can be used to move to the right side of the transfer vehicle body so that the support platform 2 can be moved out from the right side of the transfer vehicle body.

[0074] Reference Figure 7 and Figure 8, as for the locking assembly, the locking assembly includes a movable seat 10 and an elastic member 12. The movable seat 10 moves on the second frame 102 along the second direction, and the elastic member 12 gives the movable seat 10 an elastic force to move toward the direction close to the support platform 2. Specifically, the movable 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 movable 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 movable seat 10 is slidably mounted on the two limit rods 24 at the same time to guide the movement of the movable 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 movable seat 10 away from the plug-in part 11.

[0075] The end of the plug-in portion 11 near the end of the support platform 2 is chamfered on both sides to guide the plug-in portion 11. When the linkage 6 is in the moving state, the plug-in portion 11 is pushed by the elastic force of the elastic member 12 from the end of the support platform 2 into the opposite locking channel 9, so that the plug-in portion 11 locks the support platform 2 in the retracted position and restricts the support platform 2 in the retracted position from moving in the first direction.

[0076] 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.

[0077] 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 the recovery position or the 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.

[0078] When support platform 2 needs to be moved, linkage assembly 6, driven by linkage power element 7, moves in the second direction into locking channel 9, pushing out connector 11 to unlock and simultaneously lock with support platform 2. Mounting base 4 then uses the power assembly to drive linkage 6 and support platform 2 to move synchronously, allowing support platform 2 to extend from the side of the vehicle body. Drive assembly power shaft 13 rotates, driven by drive power element 14, using friction to transport transfer cloth 3, moving the patient to the center of support platform 2.

[0079] Example 2:

[0080] The present application embodiment discloses a transfer vehicle, referring to Figure 9 The transfer vehicle includes a transfer vehicle body and the bidirectional transmission auxiliary mechanism disclosed in the first embodiment.

[0081] The bracket 1 of the bidirectional transmission auxiliary mechanism is fixed to the transfer vehicle body. Fences 25 are hinged on opposite sides of the transfer vehicle body and locked by snaps. When the support platform 2 needs to be moved out of one side of the transfer vehicle body, the fence 25 on the corresponding side must be lowered first to allow the support platform 2 to be moved out.

[0082] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A bidirectional transmission auxiliary mechanism, characterized in that: include: A bracket (1) is mounted on the transfer vehicle body; The support platform (2) moves on the bracket (1) along a first direction, the first direction being parallel to the distribution direction of the two opposite sides of the bracket (1), so that the support platform (2) can be moved out from the two opposite sides of the bracket (1), and has a recovery position and an extension position; the recovery position is characterized by the support platform (2) being located directly above the transfer vehicle body; the extension position is characterized by the support platform (2) being moved out from one side of the bracket (1); The transfer cloth (3) is placed on and transferred to the support platform (2); A locking assembly, provided on the bracket (1), for locking the support platform (2) in the recovery position; A mounting seat (4) moves on the bracket (1) along the first direction; A driving assembly, mounted on the mounting seat (4) and cooperating with the transfer cloth (3), for driving the transfer cloth (3) to be transported; as well as A linkage component is mounted on the mounting seat (4) and has a linkage state and a moving state, wherein the linkage state is characterized by the linkage component being relatively locked with the support platform (2) and unlocking the locking component; the moving state is characterized by the linkage component being unlocked relative to the support platform (2), at which time the mounting seat (4) can move relative to the support platform (2) locked by the locking component; The linkage component includes A connecting frame (5) connected to the mounting seat (4) and located between the supporting platform (2) and the transfer cloth (3); A linkage body (6) is adjusted and moved on the connecting frame (5) along a second direction, wherein the second direction extends horizontally and is perpendicular to the first direction; as well as A linkage power member (7) is mounted on the mounting seat (4) and is used to drive the linkage body (6) to adjust its position; The bottom surface of the support platform (2) has a guide channel (8) and a locking channel (9) for the linkage body (6) to be pressed into and moved, the guide channel (8) allows the linkage body (6) to move along the first direction, and the locking channel (9) is connected to the guide channel (8) and allows the linkage body (6) to move along the second direction; When the linkage (6) is opposite to the locking channel (9) and the support platform (2) is located at the recovery position, the linkage (6) can move relative to the connecting frame (5) into the locking channel (9) to lock the linkage (6) and the support platform (2); The linkage body (6) comprises 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 rotatably sleeved on the base (61), and the outer periphery of the rotating sleeve (62) contacts the support platform (2), so that when the linkage body (6) moves in the guide channel (8), the rotating sleeve (62) can roll relative to the support platform (2).

2. A bidirectional transmission auxiliary mechanism according to claim 1, characterized in that: A plurality of linkage bodies (6) are provided on the connecting frame (5) along the first direction and are divided into two groups along the middle portion of the connecting frame (5). The two groups of linkage bodies (6) move symmetrically on the connecting frame (5).

3. The bidirectional transmission auxiliary mechanism according to claim 1, characterized in that: The bracket (1) is located at the end of the support platform (2), and the locking channel (9) close to the bracket (1) passes through the end of the bracket (1). The locking assembly includes A movable seat (10) moves on the bracket (1) along the second direction and has an inserting portion (11); as well as An elastic member (12) connects the movable seat (10) and the bracket (1) and provides an elastic force for the movable seat (10) to move toward the supporting platform (2); Wherein, when the support platform (2) is in the recovery 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).

4. A bidirectional transmission auxiliary mechanism according to claim 3, characterized in that: One end of the plug-in portion (11) facing the support platform (2) has a chamfer.

5. The bidirectional transmission auxiliary mechanism according to claim 1, characterized in that: The drive assembly includes A power shaft (13) is rotatably connected to the mounting seat (4), is located between the bottom surface of the support platform (2) and the transfer cloth (3), and the outer periphery of the power shaft (13) has a portion that contacts the transfer cloth (3); and A driving power member (14) is mounted on the mounting seat (4) and is used to drive the power shaft (13) to rotate.

6. A bidirectional transmission auxiliary mechanism according to claim 5, 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) is in contact between the power shaft (13) and the pressure roller (15).

7. The bidirectional transmission auxiliary mechanism according to claim 1, characterized in that: The supporting platform (2) is inclined downwardly on two opposite sides in directions away from each other.

8. A transfer vehicle, characterized in that: include: The transfer vehicle body further includes the bidirectional transmission auxiliary mechanism described in any one of claims 1 to 7.

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