Special shed for patient transfer

Abstract

The utility model relates to the technical field of medical equipment, in particular to a special patient transfer shed which comprises a transfer bed, a covering assembly used for covering the top of the transfer bed is arranged at one end of the transfer bed, and the covering assembly comprises a first moving rod, a second moving rod and a third moving rod which are installed on the two sides of the transfer bed. The second moving rod is located between the first moving rod and the second moving rod, and U-shaped rods are clamped to the tops of the first moving rod, the second moving rod and the third moving rod in a sliding mode. And meanwhile, through cooperation of the adjusting holes and the adjusting bolts, the height of the U-shaped rod can be adjusted, and then flexible adjustment of the shielding range is achieved, so that the requirements of different patients are met, and the comfort level of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a special shed for patient transfer. Background Technology

[0002] In hospitals, emergency settings, and special care environments, patients often need to be transferred between different locations, such as from wards to examination rooms, operating rooms, or ambulances. Because some patients have limited mobility or are even completely unable to move on their own, specialized transfer vehicles are needed to complete this process. Transfer vehicles must not only have a stable carrying capacity, but also ensure the safety and comfort of patients during the transfer process and reduce additional physical burden.

[0003] In existing technologies, such as the "Medical Transfer Vehicle with Protective Canopy" with announcement number CN210785042U, the following features: a storage tube located at one end of the vehicle body, with a length greater than the width of the vehicle body; a tarpaulin outlet on the side wall of the storage tube; a roll rod installed inside the storage tube; both ends of the roll rod rotatably pass through the end walls of the storage tube, with one end extending out of the end wall of the storage tube; and a handle is provided at the end of the roll rod extending out of the storage tube. Although this technology can completely cover the vehicle body when the tarpaulin is unfolded, providing effective protection for patients from sun and rain, and the support rod can be rotatably stored in the side wall of the vehicle body, this technology has some drawbacks in actual use: First, the technology requires manual installation of the support rod and tarpaulin during use, and disassembly after use. This not only increases the number of steps but also makes the process cumbersome, making it difficult to quickly unfold and retract the canopy. In addition, the fixing method of this technology is relatively simple and lacks flexibility, making it impossible to adjust the coverage area according to the needs of different patients, thus affecting its practicality and adaptability. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a special tent for patient transfer, so as to solve the problems of existing professional tents, such as cumbersome operation leading to inability to quickly unfold and retract, and limited coverage.

[0005] Based on the above objectives, this utility model provides a special tent for patient transfer, including a transfer bed. One end of the transfer bed is equipped with a covering assembly for covering the top of the bed. The covering assembly includes a first movable rod, a second movable rod, and a third movable rod installed on both sides of the transfer bed. The second movable rod is positioned between the first and second movable rods. A U-shaped rod is slidably engaged at the top of each of the first, second, and third movable rods. A first covering tent is fixedly connected between the top U-shaped rods of the first and second movable rods, and a second covering tent is fixedly connected between the top U-shaped rods of the second and third movable rods. The lengths of the first and second covering tents when open are adapted to the length of the transfer bed. A retraction assembly is provided on one side of the transfer bed. The retraction assembly is used to retract the covering assembly. The retraction assembly works in conjunction with the covering assembly to quickly retract or open the covering tent in one operation.

[0006] Preferably, a protective cover is fixedly connected to one end of the transfer bed, and an extension cover is slidably engaged on one side of the protective cover. The internal space dimensions formed by the extension cover and the protective cover are adapted to the dimensions of the first moving rod, the second moving rod, and the third moving rod moving at one end of the transfer bed.

[0007] Preferably, a baffle is rotatably connected to the top of one end of the expansion cover via a shaft. When the baffle covers one side of the expansion cover, the bottom of the baffle is located on the top of the transfer bed. A handle is fixedly connected to the bottom of one side of the third moving rod.

[0008] Preferably, three adjustment holes are provided on one side of the first moving rod, the second moving rod, and the third moving rod, and a placement hole is provided at the bottom of one side of the U-shaped rod. A third spring is fixedly connected inside the placement hole, and an adjustment bolt is slidably engaged at one end of the placement hole. One end of the adjustment bolt is fixedly connected to one end of the third spring, and the other end of the adjustment bolt is engaged inside the adjustment hole.

[0009] Preferably, the shrinkage assembly includes a first groove, a second groove, and a third groove formed on both sides of the transfer bed. A slider is slidably engaged inside the first groove, the second groove, and the third groove. One side of the slider inside the first groove is fixedly connected to one side of the bottom of the first moving rod. One side of the slider inside the second groove is fixedly connected to one side of the bottom of the second moving rod. One side of the slider inside the third groove is fixedly connected to one side of the bottom of the third moving rod.

[0010] Preferably, the length of the first slide is shorter than the length of the second slide, the length of the second slide is shorter than the length of the third slide, the position of the first moving rod moving away from the protective cover and moving to one end of the first slide is located at the tail of the transfer bed, the position of the second moving rod moving away from the protective cover and moving to one end of the second slide is located at the middle of the transfer bed, and the position of the third moving rod moving away from the protective cover and moving to one end of the third slide is located at the head of the transfer bed.

[0011] Preferably, a positioning block is fixedly connected to one side of the slider on one side of the third moving rod, a placement groove is provided on the top of the positioning block, a first spring is fixedly connected inside the placement groove, a positioning bolt is slidably engaged on the top of the placement groove, and the bottom of the positioning bolt is fixedly connected to the top of the first spring.

[0012] Preferably, an insertion hole is provided inside one end of the transfer bed, one side of the insertion hole is connected to one end of the third slide groove, and a positioning hole is provided at the top of the insertion hole. The size of the insertion hole is adapted to the size of the positioning block. The position of the positioning hole corresponds to the position of the positioning bolt when the positioning block moves inside the insertion hole, and the size of the positioning hole is adapted to the size of the positioning bolt.

[0013] Preferably, one end of the transfer bed is provided with an alignment hole, the bottom of one end of the alignment hole is connected to the top of the positioning hole, a release bolt is slidably connected inside the alignment hole, a pressing bolt is fixedly connected to one side of the release bolt, a second spring is sleeved on the outside of the pressing bolt, one end of the second spring is fixedly connected to the inside of the transfer bed, and the other end of the second spring is fixedly connected to the outside of one end of the pressing bolt.

[0014] The beneficial effects of this utility model are:

[0015] 1. Through the design of the covering and retracting components, the retracting component, in conjunction with the covering component, enables the rapid expansion and contraction of the canopy, improving ease of use and adaptability. At the same time, through the combination of the adjustment hole and the adjustment bolt, the height of the U-shaped rod can be adjusted, thereby achieving flexible adjustment of the coverage area to meet the needs of different patients and increase user comfort.

[0016] 2. The cover assembly, consisting of a first moving rod, a second moving rod, and a third moving rod, allows the cover structure to slide and expand or retract along the transfer bed without additional manual installation and disassembly, improving ease of use. Furthermore, the combination of the protective cover and the expansion cover allows the cover to be stored at one end of the transfer bed after it is retracted, saving space and effectively protecting the cover assembly and extending the equipment's lifespan.

[0017] 3. By designing the retraction components, the first, second, and third slides correspond to the first, second, and third moving rods, respectively, ensuring that the shielding components can be quickly retracted to one end of the transfer bed after use, achieving one-time quick storage and improving space utilization. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This utility model Figure 1 Side view sectional structural schematic diagram;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0023] Figure 5 This is a schematic diagram demonstrating the opening of the shielding canopy of this utility model;

[0024] Figure 6 This is an enlarged structural diagram of the covering component of this utility model.

[0025] The diagram is marked as follows:

[0026] 1. Transfer bed; 2. Protective cover; 3. Extended cover; 4. Baffle cover; 5. First slide rail; 6. Second slide rail; 7. Third slide rail; 8. First moving rod; 9. Second moving rod; 10. Third moving rod; 11. Sliding block; 12. Adjustment hole; 13. Adjustment bolt; 14. U-shaped rod; 15. First shield; 16. Second shield; 17. Handle; 18. Positioning block; 19. Placement slot; 20. First spring; 21. Positioning bolt; 22. Insertion hole; 23. Alignment hole; 24. Release bolt; 25. Second spring; 26. Pressing bolt; 27. Positioning hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] Such as this utility model Figures 1 to 6 The diagram shows a patient transfer tent, including a transfer bed 1. One end of the transfer bed 1 is equipped with a covering assembly for covering the top of the transfer bed 1. The covering assembly includes a first movable rod 8, a second movable rod 9, and a third movable rod 10 installed on both sides of the transfer bed 1. The second movable rod 9 is positioned between the first movable rod 8 and the second movable rod 9. The tops of the first movable rod 8, the second movable rod 9, and the third movable rod 10 are all slidably engaged with U-shaped rods 14. A first shielding canopy 15 is fixedly connected between the top U-shaped rod 14 of the first movable rod 8 and the top U-shaped rod 14 of the second movable rod 9. A second shielding canopy 16 is fixedly connected between the top U-shaped rod 14 of the second movable rod 9 and the top U-shaped rod 14 of the third movable rod 10. The lengths of the first shielding canopy 15 and the second shielding canopy 16 when opened are adapted to the length of the transfer bed 1. A retraction assembly is provided on one side of the transfer bed 1. The retraction assembly is used to retract the covering assembly. The retraction assembly works in conjunction with the covering assembly to quickly retract or open the shielding canopy in one go.

[0030] By using the covering and retracting components, the retracting component, in conjunction with the covering component, enables the rapid expansion and contraction of the canopy, improving ease of use and adaptability. At the same time, through the cooperation of the adjusting hole 12 and the adjusting bolt 13, the height of the U-shaped rod 14 can be adjusted, thereby achieving flexible adjustment of the coverage area to meet the needs of different patients and increase user comfort.

[0031] like Figure 1 , Figure 2 and Figure 6As shown, a protective cover 2 is fixedly connected to one end of the transfer bed 1. An extension cover 3 is slidably engaged on one side of the protective cover 2. The internal space dimensions formed by the extension cover 3 and the protective cover 2 are adapted to the dimensions of the first moving rod 8, the second moving rod 9, and the third moving rod 10 moving at one end of the transfer bed 1. A baffle 4 is rotatably connected to the top of one end of the extension cover 3 via a shaft. When the baffle 4 covers one side of the extension cover 3, the bottom of the baffle 4 is located at the top of the transfer bed 1. A handle 17 is fixedly connected to the bottom of one side of the third moving rod 10.

[0032] The concealing assembly, consisting of a first moving rod 8, a second moving rod 9, and a third moving rod 10, allows the concealing structure to slide and retract along the transfer bed 1 without additional manual installation and disassembly, improving ease of use. The protective cover 2, extension cover 3, and baffle 4 facilitate the storage of the first moving rod 8, second moving rod 9, and third moving rod 10. When the moving rods are retracted into the protective cover 2, pulling out the extension cover 3 completely covers the moving rods, and then placing the baffle 4 on one side of the extension cover 3. This allows the first moving rod 8, second moving rod 9, and third moving rod 10 to be completely stored inside the protective cover 2 and extension cover 3. Furthermore, the concealing canopy can be retracted and stored as a whole at one end of the transfer bed 1, saving space and effectively protecting the concealing assembly, extending the equipment's lifespan. Later, by opening the baffle 4 and moving the extension cover 3, the handle 17 on one side of the third moving rod 10 is exposed, allowing the entire concealing canopy to be opened using the handle 17.

[0033] like Figure 6 As shown, three adjustment holes 12 are provided on one side of the first moving rod 8, the second moving rod 9 and the third moving rod 10. A placement hole is provided at the bottom of one side of the U-shaped rod 14. A third spring is fixedly connected inside the placement hole. An adjustment bolt 13 is slidably engaged at one end of the placement hole. One end of the adjustment bolt 13 is fixedly connected to one end of the third spring. The other end of the adjustment bolt 13 is engaged inside the adjustment hole 12.

[0034] The adjustable holes 12 and adjustable bolts 13 facilitate the adjustment of the canopy's coverage area. During adjustment, pressing the adjustable bolt 13 causes it to retract into the U-shaped rod 14, while simultaneously pulling the U-shaped rod 14 upwards. When the adjustable bolt 13 moves to another adjustable hole 12, the third spring automatically rebounds, causing one end of the adjustable bolt 13 to engage inside the adjustable hole 12. This fixes the adjusted position of the U-shaped rod 14, increasing its height and expanding the canopy's coverage area. This meets the privacy and safety needs of different patients and improves adaptability.

[0035] like Figures 1 to 5As shown, the shrinkage assembly includes a first slide groove 5, a second slide groove 6, and a third slide groove 7 opened on both sides of the transfer bed 1. A slider 11 is slidably engaged inside the first slide groove 5, the second slide groove 6, and the third slide groove 7 respectively. One side of the slider 11 inside the first slide groove 5 is fixedly connected to one side of the bottom of the first moving rod 8. One side of the slider 11 inside the second slide groove 6 is fixedly connected to one side of the bottom of the second moving rod 9. One side of the slider 11 inside the third slide groove 7 is fixedly connected to one side of the bottom of the third moving rod 10.

[0036] By designing a retractable assembly, the first slide rail 5, the second slide rail 6, and the third slide rail 7 are designed to correspond to the first, second, and third moving rods 10, respectively, ensuring that the shielding assembly can be quickly retracted to one end of the transfer bed 1 after use, achieving one-time quick storage and improving space utilization.

[0037] like Figure 1 and Figure 5 As shown, the length of the first slide 5 is shorter than the length of the second slide 6, the length of the second slide 6 is shorter than the length of the third slide 7, the first moving rod 8 moves away from the interior of the protective cover 2 and moves to the position of one end of the first slide 5 located at the tail of the transfer bed 1, the second moving rod 9 moves away from the interior of the protective cover 2 and moves to the position of one end of the second slide 6 located at the middle of the transfer bed 1, and the third moving rod 10 moves away from the interior of the protective cover 2 and moves to the position of one end of the third slide 7 located at the head of the transfer bed 1;

[0038] By setting the lengths of the first slide rail 5, the second slide rail 6, and the third slide rail 7, it is convenient to position the first moving rod 8, the second moving rod 9, and the third moving rod 10 after they have moved. During blocking, pulling the handle 17 causes the third moving rod 10 to unfold along with the second blocking canopy 16. Simultaneously, the third moving rod 10 slides within the third slide rail 7 via the slider 11. When the third moving rod 10 has moved halfway, the second blocking canopy 16 is fully unfolded, at which point it moves along with the second moving rod 9. Simultaneously, when the second moving rod 9 is almost at one end of the second slide rail 6... When the first canopy 15 is fully extended, it moves along with the first moving rod 8. When the third moving rod 10 moves to one end of the third slide 7, the second moving rod 9 and the first moving rod 8 move to one end of the second slide 6 and the first slide 5, respectively. At this time, the first moving rod 8 is located at the tail of the transfer bed 1, the second moving rod 9 is located at the middle of the transfer bed 1, and the third moving rod 10 is located at the head of the transfer bed 1. This causes the canopy to completely cover the top of the transfer bed 1, thereby providing rain protection and protecting the patient's privacy.

[0039] like Figures 2 to 5As shown, a positioning block 18 is fixedly connected to one side of the slider 11 on one side of the third moving rod 10. A placement groove 19 is opened on the top of the positioning block 18. A first spring 20 is fixedly connected inside the placement groove 19. A positioning bolt 21 is slidably engaged on the top of the placement groove 19. The bottom of the positioning bolt 21 is fixedly connected to the top of the first spring 20. An insertion hole 22 is opened inside one end of the transfer bed 1. One side of the insertion hole 22 is connected to one end of the third sliding groove 7. A positioning hole 27 is opened on the top of the insertion hole 22. The size of the insertion hole 22 is compatible with the size of the positioning block 18. The position of the positioning hole 27 corresponds to the position of the positioning bolt 21 when the positioning block 18 moves inside the insertion hole 22. The size of the positioning hole 27 is compatible with the size of the positioning bolt 21.

[0040] The positioning bolt 21 and positioning hole 27 serve to position the third moving rod 10. When the third moving rod 10 moves quickly to one end of the third slide groove 7, the positioning block 18 moves into the insertion hole 22. At this time, the positioning bolt 21 will be squeezed by the top of the insertion hole 22, causing the positioning bolt 21 to retract along with the first spring 20. When the third moving rod 10 has completely moved to one end of the third slide groove 7, the positioning bolt 21 moves to the bottom of the positioning hole 27. At this time, the first spring 20 automatically rebounds, causing the top of the positioning bolt 21 to engage with the inside of the positioning hole 27 while protruding from the top of the positioning hole 27. This fixes the position of the third moving rod 10 and the position of the canopy, thus preventing retraction during movement.

[0041] like Figures 2 to 5 As shown, one end of the transfer bed 1 is provided with an alignment hole 23. The bottom of one end of the alignment hole 23 is connected to the top of the positioning hole 27. A release bolt 24 is slidably connected inside the alignment hole 23. A pressing bolt 26 is fixedly connected to one side of the release bolt 24. A second spring 25 is sleeved on the outside of the pressing bolt 26. One end of the second spring 25 is fixedly connected to the inside of the transfer bed 1, and the other end of the second spring 25 is fixedly connected to the outside of one end of the pressing bolt 26.

[0042] With the release bolt 24 and the pressing bolt 26 in place, when the canopy is retracted, pressing one end of the pressing bolt 26 causes the release bolt 24 to move. At this time, the second spring 25 is stretched. When the bottom of the release bolt 24 presses against one side of the positioning bolt 21, the positioning bolt 21 will be squeezed to move downward. At this time, the top of the positioning bolt 21 is set to be arc-shaped. By pulling the third moving rod 10, the positioning bolt 21 is moved away from the inside of the positioning hole 27. At the same time, the positioning block 18 is moved away from the inside of the insertion hole 22, which facilitates the retraction of the canopy.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A patient transfer shed, including a transfer bed (1), characterized in that, One end of the transfer bed (1) is provided with a covering assembly for covering the top of the transfer bed (1). The covering assembly includes a first moving rod (8), a second moving rod (9) and a third moving rod (10) installed on both sides of the transfer bed (1). The second moving rod (9) is located between the first moving rod (8) and the second moving rod (9). The top of the first moving rod (8), the second moving rod (9) and the third moving rod (10) are all slidably engaged with a U-shaped rod (14). A first shielding canopy (15) is fixedly connected between the top U-shaped rod (14) of the first moving rod (8) and the top U-shaped rod (14) of the second moving rod (9). A second shielding canopy (16) is fixedly connected between the top U-shaped rod (14) of the second moving rod (9) and the top U-shaped rod (14) of the third moving rod (10). The length of the first shielding canopy (15) and the second shielding canopy (16) when they are open is adapted to the length of the transfer bed (1). A shrinking assembly is provided on one side of the transfer bed (1), which is used to shrink the covering assembly; The retraction component is used in conjunction with the covering component to quickly retract or open the canopy in one go.

2. The patient transfer shed according to claim 1, characterized in that, One end of the transfer bed (1) is fixedly connected to a protective cover (2), and an extension cover (3) is slidably engaged on one side of the protective cover (2). The internal space dimensions formed by the extension cover (3) and the protective cover (2) are adapted to the dimensions of the first moving rod (8), the second moving rod (9) and the third moving rod (10) moving to one end of the transfer bed (1).

3. The patient transfer shed according to claim 2, characterized in that, The top of one end of the expansion cover (3) is rotatably connected to a baffle (4) via a shaft. When the baffle (4) covers one side of the expansion cover (3), the bottom of the baffle (4) is located on the top of the transfer bed (1). A handle (17) is fixedly connected to the bottom of one side of the third moving rod (10).

4. The patient transfer shed according to claim 3, characterized in that, Three adjustment holes (12) are provided on one side of the first moving rod (8), the second moving rod (9) and the third moving rod (10). A placement hole is provided at the bottom of one side of the U-shaped rod (14). A third spring is fixedly connected inside the placement hole. An adjustment bolt (13) is slidably engaged at one end of the placement hole. One end of the adjustment bolt (13) is fixedly connected to one end of the third spring. The other end of the adjustment bolt (13) is engaged inside the adjustment hole (12).

5. The patient transfer shed according to claim 1, characterized in that, The shrinkage assembly includes a first slide groove (5), a second slide groove (6), and a third slide groove (7) on both sides of the transfer bed (1). A slider (11) is slidably engaged inside the first slide groove (5), the second slide groove (6), and the third slide groove (7). One side of the slider (11) inside the first slide groove (5) is fixedly connected to one side of the bottom of the first moving rod (8). One side of the slider (11) inside the second slide groove (6) is fixedly connected to one side of the bottom of the second moving rod (9). One side of the slider (11) inside the third slide groove (7) is fixedly connected to one side of the bottom of the third moving rod (10).

6. The patient transfer shed according to claim 5, characterized in that, The length of the first slide (5) is shorter than the length of the second slide (6), the length of the second slide (6) is shorter than the length of the third slide (7), the first moving rod (8) moves away from the protective cover (2) and moves to the position of one end of the first slide (5) located at the tail of the transfer bed (1), the second moving rod (9) moves away from the protective cover (2) and moves to the position of one end of the second slide (6) located at the middle of the transfer bed (1), and the third moving rod (10) moves away from the protective cover (2) and moves to the position of one end of the third slide (7) located at the head of the transfer bed (1).

7. The patient transfer shed according to claim 6, characterized in that, A positioning block (18) is fixedly connected to one side of the slider (11) on one side of the third moving rod (10). A placement groove (19) is provided on the top of the positioning block (18). A first spring (20) is fixedly connected inside the placement groove (19). A positioning bolt (21) is slidably engaged on the top of the placement groove (19). The bottom of the positioning bolt (21) is fixedly connected to the top of the first spring (20).

8. The patient transfer shed according to claim 7, characterized in that, The transfer bed (1) has an insertion hole (22) inside one end. One side of the insertion hole (22) is connected to one end of the third slide groove (7). The top of the insertion hole (22) has a positioning hole (27). The size of the insertion hole (22) is compatible with the size of the positioning block (18). The position of the positioning hole (27) corresponds to the position of the positioning bolt (21) when the positioning block (18) moves inside the insertion hole (22). The size of the positioning hole (27) is compatible with the size of the positioning bolt (21).

9. The patient transfer shed according to claim 8, characterized in that, One end of the transfer bed (1) is provided with an alignment hole (23). The bottom of one end of the alignment hole (23) is connected to the top of the positioning hole (27). A release bolt (24) is slidably connected inside the alignment hole (23). A pressing bolt (26) is fixedly connected to one side of the release bolt (24). A second spring (25) is sleeved on the outside of the pressing bolt (26). One end of the second spring (25) is fixedly connected to the inside of the transfer bed (1), and the other end of the second spring (25) is fixedly connected to the outside of one end of the pressing bolt (26).

Images