A care transfer device

Abstract

The present application relates to the technical field of transfer tool, especially to a nursing transfer device.The present application comprises a supporting base, a receiving column and a transfer bed body, four end corners of the top of the supporting base are fixed with the receiving column, the top of the plurality of receiving columns is fixed with the transfer bed body, one end of the supporting base is fixed with a push handle, and the inner side of the transfer bed body is equipped with an auxiliary transfer mechanism.The present application is convenient for transferring the patient to the sickbed or operating table through the structural design of the auxiliary transfer mechanism and the convenient extension mechanism, which accelerates the work efficiency, prevents the secondary injury to the patient during the transfer process, improves the safety of the present device, and through the structural design of the stable protection mechanism, the present device can protect the patient from sliding off the bed during the transfer process, and the protection handrail can be telescopic, which is beneficial to the use of medical staff.

Description

Technical Field

[0001] This invention relates to the field of transfer tools, and more particularly to a nursing transfer device. Background Technology

[0002] Nursing is a professional technical field focused on caring for patients and maintaining their physical and mental health. Its core lies in meeting the nursing needs of humans during birth, aging, illness, and death, encompassing everything from basic daily living assistance to complex medical and nursing techniques.

[0003] Nursing programs offer diverse training objectives and academic levels, including specialized nursing, nursing science, dental nursing, midwifery, anesthesia nursing, and rehabilitation nursing. These programs aim to cultivate professionals with varying nursing skills and knowledge to meet the diverse needs of different fields and levels of care. With increasing demands for health and advancements in medical technology, the nursing profession will enjoy even greater development opportunities. Simultaneously, nursing professionals need to continuously update their knowledge and skills and improve service quality to adapt to ever-changing social needs and the healthcare environment.

[0004] Currently, in medical and health units, patients require the use of transport equipment to transfer them to dedicated nursing rooms or operating tables during emergency care. The most common transport device in medical care is the transport bed, used for transferring patients between beds. However, current technology requires multiple medical staff to manually lift the patient from their bed onto the transport bed. This method is not only labor-intensive but also poses a risk of injury to the patient during the lifting process, especially when transporting critically ill patients or injured patients with limited mobility. Therefore, we propose a new transport device for nursing care. Summary of the Invention

[0005] The purpose of this invention is to provide a nursing transport device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A nursing transport device includes a support base, receiving columns, and a transport bed. Each of the four corners of the top of the support base is fixed with a receiving column, and a transport bed is fixed to the top of the plurality of receiving columns. A push handle is fixed to one end of the support base. An auxiliary transfer mechanism is assembled on the inner side of the transport bed. The auxiliary transfer mechanism is used to assist medical staff in transferring patients to the hospital bed. A convenient extension mechanism is assembled between the transport bed and the auxiliary transfer mechanism.

[0008] Preferably, the auxiliary transfer mechanism includes a side guide cavity, a moving end bar, a first servo drive motor, a conveyor belt, and a side guide drive roller. Side guide cavities are provided at both ends of the transfer bed. Moving end bars are slidably connected to the inner sides of each side guide cavity. Two force-applying drive rollers and two side guide drive rollers are rotatably connected between two moving end bars via bearings. A first servo drive motor is fixed to the inner side of one of the moving end bars. The output of the first servo drive motor passes through the moving end bar and is fixed to one of the force-applying drive rollers. The outer sides of the force-applying drive roller and the side guide drive roller are connected via a conveyor belt.

[0009] Preferably, the auxiliary transfer mechanism further includes a central support plate, which is fixed on one side of the two moving end strips that are close to each other and in the area between the two force-applying transmission rollers. The top of the central support plate is in close contact with the conveyor belt.

[0010] Preferably, the convenient extension mechanism includes a guide rail cavity, a track rod, and a rodless cylinder. The guide rail cavity is provided at the bottom of the inner side of one of the side guide cavities. A track rod is fixed at both ends of the inner side of the guide rail cavity. A rodless cylinder is provided on the outer side of the track rod. The top of the rodless cylinder is fixed to one of the movable end bars.

[0011] Preferably, the central support plate has semi-circular concave surfaces on both sides, and the semi-circular concave surfaces are slidably connected to the force-applying transmission roller.

[0012] Preferably, the bottom of the transport bed is equipped with a stabilizing and protective mechanism for protecting the patient.

[0013] Preferably, the stabilizing and protective mechanism includes force-applying components and transmission components. Protective shells are fixed on both sides of the bottom of the transfer bed. Force-applying components are installed on the inner side of the protective shells, and transmission components are installed on the inner side of the force-applying components.

[0014] Preferably, the force-applying components include an L-shaped base plate, a second servo drive motor, a force-generating worm gear, a transmission worm wheel, a connecting base shaft, a mounting double-head plate, a force-pulling rod, and a U-shaped push frame. L-shaped base plates are fixed to both sides of the bottom of the transfer bed and inside the protective shell. A second servo drive motor is fixed to one side of each L-shaped base plate. The output end of each second servo drive motor passes through the L-shaped base plate and is fixed to a force-generating worm gear. A transmission worm wheel is meshed with the outer side of each force-generating worm gear. A connecting base shaft is fixed to the inner side of each transmission worm wheel. The top of the connecting base shaft is rotatably connected to the transfer bed via a bearing. The outer side of the connecting base shaft is rotatably connected to the L-shaped base plate via a bearing. A mounting double-head plate is fixed to the bottom of each connecting base shaft. A force-pulling rod is rotatably connected to both ends of each mounting double-head plate. A U-shaped push frame is rotatably connected to one end of each force-pulling rod.

[0015] Preferably, the transmission components include a force-concentrating displacement rod, an inclined block, a storage cavity, a mating groove, an inner inclined groove, a damping spring, and a protective handrail. A force-concentrating displacement rod is fixed to the bottom of the inner side of each U-shaped pusher. An inclined block is mounted on the top of each force-concentrating displacement rod, and a protective handrail is fixed to the top of each inclined block. Two storage cavities corresponding to the positions of the inclined blocks and protective handrails are opened on both sides of the transfer bed. The inclined blocks and protective handrails are slidably connected to the storage cavities. Multiple mating grooves corresponding to the positions of the U-shaped pusher are evenly distributed on the bottom of the transfer bed. The mating grooves are slidably connected to the U-shaped pusher. An inner inclined groove is opened on the bottom of each inclined block, and the inner inclined groove is slidably connected to the force-concentrating displacement rod. Two mounting seats are fixed on both sides of each inclined block. A damping spring is fixed to the top of each mounting seat, and the top of each damping spring is fixed to the transfer bed.

[0016] Preferably, the angle between the bottom of the inclined block and the horizontal plane is 15° to 45°.

[0017] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0018] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects:

[0019] 1. Through the structural design of the auxiliary transfer mechanism and the convenient extension mechanism, this invention makes it easy to transfer patients to the hospital bed or operating table, which speeds up the work efficiency and prevents secondary harm to the patient during the transfer process, thus improving the safety of the device.

[0020] 2. Through the structural design of the stable protective mechanism, this invention enables the device to provide lateral protection for the patient during transport, preventing the patient from slipping off the bed. At the same time, the protective handrail can be extended or retracted, which is beneficial for medical staff to use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the transfer bed and the protective shell of the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the transmission belt of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the guide rail cavity and the track rod of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection structure between the L-shaped base plate and the second servo drive motor of the present invention.

[0027] Figure 6 This is a schematic diagram of the connection structure between the connecting bottom shaft and the mounting double-head plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the transfer bed and the storage cavity of the present invention;

[0029] Figure 8 This is a schematic diagram of the cross-sectional structure of the inclined block of the present invention.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] In the diagram: 1. Support base; 2. Support column; 3. Transfer bed; 4. Side guide cavity; 5. Moving end strip; 6. First servo drive motor; 7. Force application drive roller; 8. Conveyor belt; 9. Side guide drive roller; 10. Central support plate; 11. Guide rail cavity; 12. Track rod; 13. Rodless cylinder; 14. Protective shell; 15. L-shaped base plate; 16. Second servo drive motor; 17. Force application worm gear; 18. Transmission worm wheel; 19. Connecting bottom shaft; 20. Mounting double-head plate; 21. Force-pulling push rod; 22. U-shaped push frame; 23. Force-concentrating displacement rod; 24. Inclined block; 25. Storage cavity; 26. Fitting groove; 27. Inner inclined groove; 28. Damping spring; 29. ​​Protective handrail. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] Example 1

[0034] Reference Figure 1-3A nursing transport device includes a support base 1, receiving columns 2, and a transport bed 3. The four corners of the top of the support base 1 are fixed with receiving columns 2. The top of the multiple receiving columns 2 is fixed with a transport bed 3. One end of the support base 1 is fixed with a push handle. The inner side of the transport bed 3 is equipped with an auxiliary transfer mechanism, which is used to assist medical staff in transferring patients to the hospital bed. A convenient extension mechanism is installed between the transport bed 3 and the auxiliary transfer mechanism.

[0035] The auxiliary transfer mechanism includes a side guide cavity 4, a moving end bar 5, a first servo drive motor 6, a conveyor belt 8, and a side guide drive roller 9. The two ends of the transfer bed 3 are provided with side guide cavities 4. The moving end bar 5 is slidably connected to the inner side of the side guide cavity 4. Two force-applying drive rollers 7 and two side guide drive rollers 9 are rotatably connected between the two moving end bars 5 through bearings. The first servo drive motor 6 is fixed to the inner side of one of the moving end bars 5. The output of the first servo drive motor 6 passes through the moving end bar 5 and is fixed to one of the force-applying drive rollers 7. The outer sides of the force-applying drive roller 7 and the side guide drive roller 9 are connected through the conveyor belt 8. It can be understood that when the patient lies on the conveyor belt 8, a quilt is laid on top of the conveyor belt 8.

[0036] The auxiliary transfer mechanism also includes a central support plate 10. A central support plate 10 is fixed on one side of the two moving end strips 5 that are close to each other and in the area between the two force-applying transmission rollers 7. The top of the central support plate 10 is in close contact with the conveyor belt 8. The central support plate 10 can support the bedding and the patient, and increase the transmission stability of the conveyor belt 8.

[0037] The central support plate 10 has semi-circular concave surfaces on both sides, which are slidably connected to the force transmission roller 7, making it easier to support the bedding and the patient.

[0038] Example 2

[0039] Further optimizations to Example 1, specifically, such as... Figure 4 As shown, the convenient extension mechanism includes a guide rail cavity 11, a track rod 12, and a rodless cylinder 13. The guide rail cavity 11 is opened at the bottom of the inner side of one of the side guide cavities 4. A track rod 12 is fixed at both ends of the inner side of the guide rail cavity 11. A rodless cylinder 13 is set on the outer side of the track rod 12. The top of the rodless cylinder 13 is fixed to one of the moving end bars 5. The rodless cylinder 13 is a mature existing technology, and its working principle will not be described in detail here. The setting of the rodless cylinder 13 facilitates the horizontal movement of the moving end bar 5, so that the patient can first lean against the hospital bed or operating table, and then be transferred, which increases the safety of the transfer process.

[0040] Example 3

[0041] Further optimizations to Example 1, specifically, such as... Figure 5-8 As shown, the bottom of the transport bed 3 is equipped with a stabilizing and protective mechanism, which is used to protect the patient.

[0042] The stabilizing and protective mechanism includes force-applying components and transmission components. Protective shells 14 are fixed on both sides of the bottom of the transfer bed 3. Force-applying components are installed on the inner side of the protective shells 14, and transmission components are installed on the inner side of the force-applying components.

[0043] The force-applying components include an L-shaped base plate 15, a second servo drive motor 16, a force-generating worm gear 17, a transmission worm wheel 18, a connecting bottom shaft 19, a mounting double-head plate 20, a force-pulling push rod 21, and a U-shaped push frame 22. L-shaped base plates 15 are fixed to both sides of the bottom of the transfer bed 3, inside the protective outer shell 14. A second servo drive motor 16 is fixed to one side of each L-shaped base plate 15. The output end of the second servo drive motor 16 passes through the L-shaped base plate 15 and is fixed to a force-generating worm gear 17. A transmission worm wheel 18 is meshed with the outer side of each force-generating worm gear 17. A connecting bottom shaft 19 is fixed to the inner side of each transmission worm wheel 18. The top of shaft 9 is rotatably connected to the transfer bed 3 via bearings. The outer side of the connecting bottom shaft 19 is rotatably connected to the L-shaped base plate 15 via bearings. The bottom of the connecting bottom shaft 19 is fixed with a double-head plate 20. Both ends of the double-head plate 20 are rotatably connected with a force-pulling push rod 21. One end of the force-pulling push rod 21 is rotatably connected to a U-shaped push frame 22. When the second servo drive motor 16 is started, the output end of the second servo drive motor 16 drives the force-generating worm gear 17 to mesh with the transmission worm wheel 18 to rotate, so that the transmission worm wheel 18 drives the connecting bottom shaft 19 to rotate synchronously, thereby causing the force-pulling push rod 21 to drive the U-shaped push frame 22 to move synchronously.

[0044] The transmission components include a force-concentrating displacement rod 23, an inclined block 24, a storage cavity 25, a mating groove 26, an inner inclined groove 27, a damping spring 28, and a protective handrail 29. A force-concentrating displacement rod 23 is fixed to the bottom of the inner side of the U-shaped push frame 22. An inclined block 24 is mounted on the top of each force-concentrating displacement rod 23, and a protective handrail 29 is fixed to the top of each inclined block 24. Two storage cavities 25 are opened on both sides of the transfer bed 3, corresponding to the positions of the inclined block 24 and the protective handrail 29. The inclined block 24 and the protective handrail 29 are slidably connected to the storage cavity 25. Multiple mating grooves 26 corresponding to the positions of the U-shaped push frame 22 are evenly distributed on the bottom of the transfer bed 3. The mating grooves 26 are slidably connected to the U-shaped push frame 22. An inner inclined groove 27 is opened on the bottom of each inclined block 24, and the inner inclined groove 27 is slidably connected to the force-concentrating displacement rod 23. Two mounting... The top of the mounting base and the mounting seat are both fixed with damping springs 28. The top of the damping springs 28 is fixed to the transfer bed 3. When it is necessary to retract the protective handrail 29 into the storage cavity 25, the second servo drive motor 16 is started. The output end of the second servo drive motor 16 drives the force worm gear 17 to mesh with the transmission worm wheel 18 to rotate, so that the transmission worm wheel 18 drives the connecting bottom shaft 19 to rotate synchronously. Because the connecting bottom shaft 19 is fixed to the mounting double-head plate 20, the mounting double-head plate 20 is rotatably connected to the force-pulling push rod 21, and the force-pulling push rod 21 is rotatably connected to the U-shaped push frame 22, so that the force-pulling push rod 21 can drive the U-shaped push frame 22 to move, so that the force-displacement rod 23 slides along the inner side of the inner inclined groove 27. Under the elastic force of the damping spring 28, the inclined block 24 moves downward along the inner side of the storage cavity 25, so that the protective handrail 29 can be retracted into the storage cavity 25.

[0045] The bottom of the inclined block 24 has an angle of 15° to 45° with the horizontal plane. The inclined surface at the bottom of the inclined block 24 and the inner inclined groove 27 facilitate the vertical movement of the inclined block 24, enabling the inclined block 24 to move vertically under the action of external force.

[0046] In summary:

[0047] This invention addresses the technical problem of existing technologies requiring multiple medical staff to manually lift patients from their beds onto transport beds during patient transfer. This method is not only labor-intensive but also increases the risk of injury during the lifting process, especially for critically ill or physically disabled patients with injuries, where secondary injuries are highly likely. The invention employs the technical solutions described in the above embodiments. The implementation process of these solutions is as follows:

[0048] During use, when a patient needs to be transferred, the second servo drive motor 16 is first started. The output end of the second servo drive motor 16 drives the force worm gear 17 to mesh with the transmission worm wheel 18 to rotate, so that the transmission worm wheel 18 drives the connecting bottom shaft 19 to rotate synchronously. Because the connecting bottom shaft 19 is fixed to the mounting double-head plate 20, the mounting double-head plate 20 is rotatably connected to the force-pulling push rod 21, and the force-pulling push rod 21 is rotatably connected to the U-shaped push frame 22, the force-pulling push rod 21 can drive the U-shaped push frame 22 to move, so that the force-displacement rod 23 slides along the inner side of the inner inclined groove 27. Under the guidance of the inner inclined groove 27, the inclined block 24 moves upward along the inner side of the storage cavity 25. At the same time, the damping spring 28 is squeezed and contracted, so that the protective handrail 29 can be extended from the storage cavity 25. The second servo drive motor 16 is turned off, and the patient's sides are protected.

[0049] When moving the patient to the bedside or operating table, the transport bed 3 is positioned next to the bedside. Then, the output of the second servo drive motor 16 is reversed, retracting the protective handrail 29 into the storage cavity 25. The rodless cylinder 13 is activated, driving one of the moving end strips 5 to move, which in turn moves the central support plate 10, moving the patient to one side of the bedside or operating table. The rodless cylinder 13 is then deactivated, and the first servo drive motor 6 is activated. The output of the first servo drive motor 6 drives one of the force-applying drive rollers 7 to rotate, causing the conveyor belt 8 to move. This allows the bedding and the patient on the top of the conveyor belt 8 to be transported together. At this point, the medical staff catches the bedding and gradually pulls it, coordinating with the movement of the bedding, until the bedding and the patient are completely moved onto the bedside or operating table, thus completing the contactless transport of the patient.

[0050] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0051] 1. Through the structural design of the auxiliary transfer mechanism and the convenient extension mechanism, this invention makes it easy to transfer patients to the hospital bed or operating table, which speeds up the work efficiency and prevents secondary harm to the patient during the transfer process, thus improving the safety of the device.

[0052] 2. Through the structural design of the stable protective mechanism, this invention enables the device to provide lateral protection for the patient during transport, preventing the patient from slipping off the bed. At the same time, the protective handrail 29 can be extended and retracted, which is beneficial for medical staff to use.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A nursing transport device, characterized in that, The device includes a support base (1), support columns (2), and a transfer bed (3). Support columns (2) are fixed at the four corners of the top of the support base (1). A transfer bed (3) is fixed at the top of the multiple support columns (2). A push handle is fixed at one end of the support base (1). An auxiliary transfer mechanism is installed on the inner side of the transfer bed (3). The auxiliary transfer mechanism is used to assist medical staff in transferring patients to the hospital bed. A convenient extension mechanism is installed between the transfer bed (3) and the auxiliary transfer mechanism. The auxiliary transfer mechanism includes a side guide cavity (4), a moving end bar (5), a first servo drive motor (6), a conveyor belt (8), and a side guide drive roller (9). The two ends of the transfer bed (3) are provided with side guide cavities (4). The inner side of each side guide cavity (4) is slidably connected to a moving end bar (5). Two force-applying drive rollers (7) and two side guide drive rollers (9) are rotatably connected between the two moving end bars (5) through bearings. The inner side of one of the moving end bars (5) is fixed with a first servo drive motor (6). The output of the first servo drive motor (6) passes through the moving end bar (5) and is fixed to one of the force-applying drive rollers (7). The outer sides of the force-applying drive roller (7) and the side guide drive roller (9) are connected by a conveyor belt (8). The auxiliary transfer mechanism also includes a central support plate (10). A central support plate (10) is fixed on one side of the two moving end strips (5) that are close to each other and in the area between the two force-applying transmission rollers (7). The top of the central support plate (10) is in close contact with the conveyor belt (8). Semi-circular concave surfaces are provided on both sides of the central support plate (10). The semi-circular concave surfaces are slidably connected to the force-applying transmission rollers (7). The convenient extension mechanism includes a guide rail cavity (11), a track rod (12), and a rodless cylinder (13). The guide rail cavity (11) is provided at the bottom of the inner side of one of the side guide cavities (4). A track rod (12) is fixed at both ends of the inner side of the guide rail cavity (11). A rodless cylinder (13) is provided on the outer side of the track rod (12). The top of the rodless cylinder (13) is fixed to one of the movable end bars (5). The bottom of the transport bed (3) is equipped with a stabilizing protection mechanism, which is used to protect the patient. The stabilizing protection mechanism includes force-applying accessories and transmission accessories. Protective shells (14) are fixed on both sides of the bottom of the transport bed (3). Force-applying accessories are installed on the inner side of the protective shells (14), and transmission accessories are installed on the inner side of the force-applying accessories. The force-applying components include an L-shaped base plate (15), a second servo drive motor (16), a force-generating worm gear (17), a transmission worm wheel (18), a connecting bottom shaft (19), a mounting double-head plate (20), a force-pulling push rod (21), and a U-shaped push frame (22). The L-shaped base plate (15) is fixed to both sides of the bottom of the transfer bed (3) and inside the protective outer shell (14). A second servo drive motor (16) is fixed to one side of each L-shaped base plate (15). The output end of the second servo drive motor (16) passes through the L-shaped base plate (15) and is fixed to the force-generating worm gear (17). The outer side of each power worm gear (17) is meshed with a transmission worm wheel (18), and the inner side of each transmission worm wheel (18) is fixed with a connecting bottom shaft (19). The top of the connecting bottom shaft (19) is rotatably connected to the transfer bed (3) through a bearing. The outer side of the connecting bottom shaft (19) is rotatably connected to the L-shaped base plate (15) through a bearing. The bottom of each connecting bottom shaft (19) is fixed with a mounting double-head plate (20). Both ends of the mounting double-head plate (20) are rotatably connected with a force-pulling push rod (21). One end of each force-pulling push rod (21) is rotatably connected with a U-shaped push frame (22). The transmission components include a force-concentrating displacement rod (23), an inclined block (24), a storage cavity (25), a mating groove (26), an inner inclined groove (27), a damping spring (28), and a protective handrail (29). The bottom of the inner side of the U-shaped push frame (22) is fixed with a force-concentrating displacement rod (23). The top of the force-concentrating displacement rod (23) is equipped with an inclined block (24). The top of the inclined block (24) is fixed with a protective handrail (29). Two storage cavities (25) corresponding to the positions of the inclined block (24) and the protective handrail (29) are opened on both sides of the transfer bed (3). All handrails (29) are slidably connected to the storage cavity (25). The bottom of the transfer bed (3) is evenly provided with multiple mating grooves (26) corresponding to the positions of the U-shaped push frame (22). All mating grooves (26) are slidably connected to the U-shaped push frame (22). The bottom of the inclined block (24) is provided with an inner inclined groove (27). The inner inclined groove (27) is slidably connected to the force displacement rod (23). Two mounting seats are fixed on both sides of the inclined block (24). A damping spring (28) is fixed on the top of each mounting seat. The top of the damping spring (28) is fixed to the transfer bed (3). The bottom of the inclined block (24) has an angle of 15° to 45° with the horizontal plane.

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