Drawer structure and medical device thereof

Abstract

The utility model discloses a drawer structure and medical equipment thereof, this drawer structure includes: casing, drawer and lock catch mechanism, the drawer is movably arranged in the casing, and has the opening state of exploring the casing and the closed state of being accomodated in the casing, the lock catch mechanism includes: the hook and the elastic buckle component, and respectively set up in the drawer and the casing, wherein, the hook can be buckled with the elastic buckle component when the drawer switches from the opening state to the closed state, makes the drawer buckle tightly in the casing. In the drawer structure provided by the scheme, when the drawer switches from the opening state to the closed state, the drawer can be buckled tightly in the casing through the buckling of the hook and the elastic buckle component, and compared with the magnetic attraction locking mode of the existing drawer, the locking of the drawer can be more fastened.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a drawer structure and its medical equipment. Background Technology

[0002] The trolley equipment for ultrasound products has a drawer for storing ultrasound therapy tools. This drawer can be used to store ultrasound therapy heads as well as accessories used by doctors when performing ultrasound therapy, such as rulers and paintbrushes.

[0003] Among them, some of the drawers of the ultrasonic product trolley equipment are push-to-turn drawers. Although the drawers can be locked by magnetic attraction when they are in the storage state, the locking effect of this method is not good and not secure enough. Utility Model Content

[0004] In view of this, the present invention provides a drawer structure that makes the drawer lock more secure.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A drawer structure for use in medical devices includes: a housing, a drawer, and a locking mechanism;

[0007] The drawer is movably disposed within the housing and has an open state protruding outside the housing and a closed state retracted inside the housing;

[0008] The locking mechanism includes a hook and a spring-loaded assembly, which are respectively disposed on the drawer and the housing; wherein, when the drawer is switched from an open state to a closed state, the hook can engage with the spring-loaded assembly, so that the drawer is fastened to the housing.

[0009] Preferably, the housing has a storage cavity;

[0010] The drawer is movably disposed in the storage cavity of the housing, and extends out of the storage cavity when open, and is stored in the storage cavity when closed;

[0011] The inner side of the first shell wall of the housing is provided with a locking cavity, which is located on the first side of the storage cavity;

[0012] The snap fastener assembly is disposed within the locking cavity of the first shell wall and extends into the storage cavity;

[0013] The hook is located on the first side of the drawer.

[0014] Preferably, the spring-loaded assembly includes: a spring-loaded buckle and a spring;

[0015] The snap fastener is located at the bottom of the locking cavity and extends into the storage cavity;

[0016] The spring is installed and abuts against the top of the locking cavity and the snap ring, so that the snap ring elastically abuts against the bottom of the locking cavity;

[0017] When the drawer is switched from the open state to the closed state, the hook can engage with the snap fastener.

[0018] Preferably, a first positioning post is provided on the top of the locking cavity;

[0019] The top of the snap fastener is provided with a second positioning post;

[0020] One end of the spring is sleeved on the first positioning post and abuts against the top of the locking cavity, while the other end is sleeved on the second positioning post and abuts against the top of the snap fastener.

[0021] Preferably, the locking mechanism further includes an unlocking component;

[0022] The unlocking component is located on the outer side of the first shell wall and is used to disengage the spring buckle from the latch, thereby unlocking the drawer.

[0023] Preferably, the unlocking component includes: a paddle and a lever;

[0024] The paddle is movably disposed on the outer wall of the first housing along a first direction; wherein, the first direction is parallel to the axial direction of the spring;

[0025] The insertion rod is disposed on the inner side wall of the lever, passes through the first housing wall and is inserted at the top of the snap fastener; wherein the top of the snap fastener is located inside the locking cavity.

[0026] Preferably, the top of the snap ring has a through hole for the insertion rod to pass through;

[0027] The end of the insertion rod is provided with an internal threaded hole along the axial direction;

[0028] The unlocking component also includes a locking screw;

[0029] The locking screw is located on the first end face of the spring-loaded through hole and is tightened into the internal thread hole of the insert rod; wherein, the first end face of the through hole is away from the lever.

[0030] Preferably, it further includes a rotation damping mechanism, through which the drawer can be flipped onto the second side of the storage cavity; wherein, when the drawer flips from the open state to the closed state, the rotation damping mechanism also provides elastic resistance to the drawer, causing the drawer to tend to return to the open state;

[0031] Once unlocked, the drawer can be flipped from a closed state to an open state under the action of the elastic resistance.

[0032] Preferably, the rotary damping mechanism includes: a bearing seat, a fixed shaft, a connecting assembly, and a torsion spring assembly;

[0033] The fixed shaft is disposed on the second side of the storage cavity via the shaft seat;

[0034] The second side of the drawer is rotatably connected to the fixed shaft via the connecting assembly;

[0035] The torsion spring assembly is sleeved on the fixed shaft, with its first end contacting the second side of the shaft seat or the storage cavity, and its second end contacting the connecting assembly. When the drawer is flipped from the open state to the closed state, it is bent by the connecting assembly.

[0036] Preferably, the connecting assembly includes: a U-shaped connecting plate and a connecting lug;

[0037] The U-shaped connecting plate is disposed on the second side of the drawer;

[0038] One end of the connecting ear is rotatably connected to the fixed shaft, and the other end is connected to the inner wall of the first plate of the U-shaped connecting plate;

[0039] The second end of the torsion spring assembly contacts the outer wall of the second plate of the U-shaped connecting plate, and is bent by the outer wall of the second plate of the U-shaped connecting plate when the drawer is flipped from the open state to the closed state.

[0040] A medical device includes a drawer, the drawer having the drawer structure described above.

[0041] As can be seen from the above technical solution, in the drawer structure provided by this utility model, when the drawer is switched from the open state to the closed state, the drawer can be fastened to the machine shell by the engagement of the hook and the spring buckle assembly. Compared with the existing magnetic locking method of drawers, this locking method can make the drawer lock more secure. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is an assembly diagram of the drawer structure provided for an embodiment of the present utility model;

[0044] Figure 2 An exploded view of the drawer structure provided in an embodiment of this utility model;

[0045] Figure 3 A cross-sectional view of the drawer structure provided in this embodiment of the present invention when closed;

[0046] Figure 4 An assembly cross-sectional view of the drawer structure provided in this embodiment of the present invention when it is opened;

[0047] Figure 5 This is an assembly diagram of the rotary damping mechanism provided in an embodiment of the present invention.

[0048] Among them, 1 is a nut, 2 is a disc spring, 3 is a damping plate, 4 is a round head screw, 5 is a shaft seat, 6 is a fixed shaft, 7 is a connecting ear, 8 is a washer screw, 9 is a left torsion spring, 10 is a right torsion spring, 11 is a U-shaped connecting plate, 12 is a drawer, 13 is a housing, 14 is a spring clip, 15 is a spring, 16 is a lever, 17 is a storage cavity, 18 is a hook, 19 is a locking cavity, 20 is a first positioning post, 21 is a plug rod, 22 is an extension plate, and 23 is a second positioning post. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0050] The drawer structure provided in this embodiment of the utility model is applied to medical devices, such as... Figure 1 and Figure 2 As shown, it includes: housing 13, drawer 12 and locking mechanism;

[0051] like Figure 3 and Figure 4 As shown, the drawer 12 is movably disposed in the housing 13 and has an open state protruding outside the housing 13 and a closed state stored inside the housing 13.

[0052] The locking mechanism includes a latch 18 and a spring-loaded assembly, which are respectively disposed in the drawer 12 and the housing 13; wherein, when the drawer 12 is switched from the open state to the closed state, the latch 18 can engage with the spring-loaded assembly, such as... Figure 3 As shown, drawer 12 is fastened to housing 13.

[0053] It should be noted that the housing 13 can be located at a corresponding opening or port of the medical device housing, and the housing 13 has a receiving cavity; the drawer 12 can be movably disposed within or to one side of the receiving cavity of the housing 13, and when open, it extends out of the receiving cavity of the housing 13, and when closed, it is located within the receiving cavity of the housing 13, thus realizing the storage of the drawer 12; wherein, the drawer 12 can be moved by pushing and pulling, and can be slidably disposed within the receiving cavity of the housing 13, or the drawer 12 can be moved by flipping, such as... Figure 4 As shown, it can be flipped and installed on one side of the receiving cavity of the housing 13; in addition, the hook 18 and the spring-loaded assembly can be installed on the same side of the drawer 12 and the housing 13, and when the drawer 12 is switched from the open state to the closed state, the hook 18 can be elastically engaged with the spring-loaded assembly, as shown. Figure 3 As shown, this allows the drawer 12 to be fastened to the housing 13, meaning the drawer 12 is locked to the housing 13 by a snap-fit ​​mechanism. This locking method provides better fastening and is also more convenient. Of course, the hook 18 and the spring-loaded assembly can also be set on the same side of the housing 13 and the drawer 12. When the drawer 12 is switched from the open state to the closed state, the spring-loaded assembly can engage with the hook 18. This will not be elaborated further here.

[0054] In other words, in the drawer structure provided by this solution, when the drawer 12 is switched from the open state to the closed state, the drawer 12 can be fastened to the housing 13 by the engagement of the hook 18 and the spring-loaded fastener assembly. Compared with the existing magnetic locking method of drawers, this locking method can make the drawer 12 more secure.

[0055] Specifically, such as Figure 2 As shown, the housing 13 has a storage cavity 17;

[0056] Drawer 12 is movably mounted in the storage cavity 17 of the casing 13, such as Figure 4 As shown, and when in the open state, it protrudes outside the storage cavity 17, as... Figure 3 As shown, it is stored in the storage cavity 17 when closed;

[0057] The inner side of the first shell wall of the housing 13 is provided with a locking cavity 19, which is located on the first side of the storage cavity 17;

[0058] like Figure 4 As shown, the spring-loaded buckle assembly is disposed in the locking cavity 19 of the first shell wall and extends into the storage cavity 17;

[0059] Hook 18 is located on the first side of drawer 12.

[0060] It should be noted that, as Figure 2As shown, a storage cavity 17 or storage slot is provided in the middle part of the housing 13. The storage cavity 17 or storage slot is the receiving cavity mentioned above. The first shell wall and the second shell wall of the housing 13 can be located on the upper and lower sides of the storage cavity 17, respectively. That is, the first shell wall and the second shell wall can be equivalent to the upper shell wall and the lower shell wall of the storage cavity 17, respectively. The inner side wall of the first shell wall of the housing 13 is provided with a locking cavity 19, which can be located on the upper side of the storage cavity 17; wherein, as Figure 2 As shown, the locking cavity 19 can be a rectangular locking cavity; additionally, as mentioned above, the drawer 12 can be pushed and pulled into the storage cavity 17 of the housing 13, or the drawer 12 can be flipped and disposed on one side of the storage cavity 17 of the housing 13 (as shown below), such as Figure 4 As shown, and when in the open state, it protrudes outside the storage cavity 17, as... Figure 3 As shown, when closed, it is stored in the storage cavity 17, and the drawer 12 is flush with the upper and lower shell walls of the storage cavity 17; furthermore, as Figure 4 As shown, the spring-loaded assembly is built into the locking cavity 19 of the first housing wall and can extend downward into the storage cavity 17; as Figure 2 As shown, the first side of drawer 12 (as shown above) may be provided with an extension plate 22, and the hook 18 may be provided on the inner side wall of the extension plate 22; wherein, when drawer 12 is switched from the open state to the closed state, the extension plate 22 on the first side of drawer 12 is also located in the storage cavity 17, so that the hook 18 can be fastened with the spring-loaded component that passes through the storage cavity 17; of course, the spring-loaded component is built into the locking cavity 19 and passes through the storage cavity 17, realizing the design of the spring-loaded component being built into the housing 13, which can make the drawer structure compact.

[0061] Furthermore, such as Figure 2 As shown, the spring-loaded assembly includes: spring-loaded latch 14 and spring 15;

[0062] like Figure 4 As shown, the snap 14 is located at the bottom of the locking cavity 19 and extends into the storage cavity 17;

[0063] Spring 15 is installed and abuts against the top of the locking cavity 19 and the snap 14, so that snap 14 elastically abuts against the bottom of the locking cavity 19.

[0064] When drawer 12 is switched from open to closed, hook 18 can engage with spring latch 14.

[0065] It should be noted that the structure of the spring clip 14 can be referenced. Figure 2 As shown, and as Figure 4As shown, the spring clip 14 is movably disposed at the bottom of the locking cavity 19 and extends downward into the storage cavity 17; the spring 15 is installed and abuts between the top of the locking cavity 19 and the top of the spring clip 14, so that the spring clip 14 elastically abuts against the bottom of the locking cavity 19; when the drawer 12 is switched from the open state to the closed state, the hook 18 can engage with the spring clip 14.

[0066] The locking cavity 19 has a through hole at its bottom. The lower middle part of the snap fastener 14 passes through this through hole and enters the receiving cavity 17. Because the upper part (top) of the snap fastener 14 abuts against the bottom of the locking cavity 19, the snap fastener 14 will not fall out of the through hole. Furthermore, to facilitate the engagement of the hook 18 with the snap fastener 14, such as... Figure 4 As shown, the lower end or bottom end of the spring latch 14 is provided with a first guide slope, and the latch 18 is also provided with a second guide slope for engaging with the first guide slope of the spring latch 14. This allows the latch 18 to push the spring latch 14 upwards to compress the spring 15 when the drawer 12 is switched from the open state to the closed state under external force, so that the latch 18 can enter the locking position. Figure 3 As shown, the spring clip 14 will return to its original position under the restoring force of the spring 15, thus engaging with the hook 18; of course, the spring clip assembly is designed in this way, with a simple structure and convenient fastening.

[0067] Furthermore, such as Figure 2 As shown, a first positioning post 20 is provided on the top of the locking cavity 19;

[0068] The top of the spring clip 14 is provided with a second positioning post 23;

[0069] like Figure 4 As shown, one end of the spring 15 is sleeved on the first positioning post 20 and abuts against the top of the locking cavity 19, while the other end is sleeved on the second positioning post 23 and abuts against the top of the spring buckle 14.

[0070] Among them, such as Figure 2 As shown, the top of the locking cavity 19 may be provided with a downward-facing first positioning post 20, and the top of the spring latch 14 may be provided with an upward-facing second positioning post 23, which can be aligned with the first positioning post 20; as Figure 4 As shown, the upper end of the spring 15 can be sleeved on the first positioning post 20 and abut against the top of the cavity in the locking cavity 19, and the lower end can be sleeved on the second positioning post 23 and abut against the top of the spring buckle 14, so that the spring 15 is more securely and reliably installed and abutted against the top of the cavity in the locking cavity 19 and the spring buckle 14, and is not easy to fall off. At the same time, it is also convenient for the spring buckle 14 to compress the spring 15 upward.

[0071] In this solution, the locking mechanism also includes an unlocking component;

[0072] The unlocking component is located on the outer side of the first housing wall and is used to disengage the spring latch 14 from the latch 18, thereby unlocking the drawer 12. Alternatively, the unlocking component can be located on the outer wall of the first housing wall of the casing 13, extending into the storage cavity 17, and is used to lift the spring latch 14 out of engagement with the latch 18, thus unlocking the drawer 12 and facilitating its opening. In other words, the locking mechanism integrates both the locking body and the unlocking part, achieving a combination of locking and unlocking functions. Of course, the unlocking component can also function as an unlocking switch.

[0073] Specifically, such as Figure 2 As shown, the unlocking components include: a paddle 16 and a lever 21;

[0074] like Figure 4 As shown, the paddle 16 is movably disposed on the outer wall of the first housing wall along a first direction; wherein, the first direction is parallel to the axial direction of the spring 15;

[0075] like Figure 2 and Figure 4 As shown, the insert rod 21 is disposed on the inner side wall of the lever 16, and passes through the first housing wall and is inserted at the top of the spring buckle 14; wherein, the top of the spring buckle 14 is located in the locking cavity 19.

[0076] It should be noted that, as Figure 4 As shown, the paddle 16 is vertically movable on the outer wall of the first housing wall of the housing 13, with the first direction being the vertical direction. Similarly, the spring 15 can be vertically mounted and abut against the top of the locking cavity 19 and the spring latch 14. Figure 2 As shown, the insertion rod 21 can be arranged laterally on the inner side wall of the lever 16, such as... Figure 4 As shown, the spring clip 14 passes through the first shell wall and is positioned at the top (i.e., the upper part). The first shell wall has a through hole for the insertion rod 21 to pass through, and the through hole is vertically distributed to limit the vertical travel of the insertion rod 21. The top of the spring clip 14 also has a hole structure for the insertion rod 21 to pass through. In this way, by pushing the lever 16 upward, the spring clip 14 can be moved upward to disengage from the latch 18, thereby unlocking the locking mechanism. Moreover, when the external force is removed, the spring clip 14 will return downward to the bottom of the locking cavity 19 based on the elastic restoring force of the spring 15. Of course, the unlocking component is designed in this way, which makes the structure simple and the unlocking convenient.

[0077] Furthermore, such as Figure 2 As shown, the top of the spring clip 14 has a through hole for the insertion rod 21 to pass through;

[0078] like Figure 4 As shown, the end of the insertion rod 21 has an internal threaded hole along the axial direction;

[0079] like Figure 2As shown, the unlocking assembly also includes a locking screw;

[0080] like Figure 4 As shown, the locking screw is located on the first end face of the through hole of the spring clip 14 and is tightened into the internal thread hole of the insert rod 21; wherein, the first end face of the through hole is far away from the lever 16.

[0081] It should be noted that, as Figure 2 As shown, the top of the spring clip 14 may have a through hole along the lateral direction for the insertion rod 21 to pass through; as Figure 4 As shown, the end of the insertion rod 21 has an internally threaded hole along the axial direction, and this internally threaded hole can be distributed between the two ends of the insertion rod 21; as Figure 2 As shown, the locking screw can be a round-headed screw 4, and is located on the first end face (i.e. the outer end face) of the through hole of the spring buckle 14, and is screwed to the internal thread hole of the insertion rod 21, thereby locking the end of the insertion rod 21 to the spring buckle 14, so that the insertion rod 21 is more securely inserted at the top of the spring buckle 14.

[0082] Furthermore, the drawer structure provided in this embodiment of the present invention also includes a rotation damping mechanism, such as... Figure 4 As shown, the drawer 12 is foldably mounted on the second side of the storage cavity 17 via a rotary damping mechanism; wherein, when the drawer 12 is flipped from the open state to the closed state, the rotary damping mechanism also provides elastic resistance to the drawer 12, so that the drawer 12 has a tendency to return to the open state;

[0083] Once unlocked, drawer 12 can be flipped from the closed state to the open state under the action of elastic resistance.

[0084] It should be noted that, as Figure 2As shown, an extension plate can also be provided on the second side (below) of drawer 12. This extension plate is equivalent to the lower extension plate. Of course, the extension plate 22 on the first side of drawer 12 is the upper extension plate. The inner side of the lower extension plate of drawer 12 can be flipped onto the second side of storage cavity 17 through a rotary damping mechanism. That is, the movement mode of drawer 12 is flipping. When drawer 12 is in the open state, it flips out of storage cavity 17, and when it is in the closed state, it flips back into storage cavity 17. Moreover, when drawer 12 flips from the open state to the closed state, the rotary damping mechanism also provides elastic resistance to drawer 12, so that drawer 12 has a tendency to return to the open state. That is, the rotary damping mechanism is also used to provide elastic flipping resistance to drawer 12, so that drawer 12 flips back into storage cavity 17. The process involves elastic resistance, which tends to return drawer 12 to the open state. Once unlocked (the external force for closing has been removed), drawer 12 can flip from the closed state to the open state under the action of elastic resistance. Thus, drawer 12 can automatically open after unlocking. That is, when the lever 16 is pushed upward, drawer 12 can automatically flip out, which also enables one-click pop-out of drawer 12. This allows doctors to maintain their focus on treatment operations to the greatest extent and also improves the user experience. In addition, the rotary damping mechanism serves as both the pivot component for flipping drawer 12 and the damping component for closing drawer 12, realizing the integrated design of the flipping structure and damping structure of drawer 12, which makes the flipping and damping structure of drawer 12 more compact.

[0085] In this plan, such as Figure 2 As shown, the rotary damping mechanism includes: a bearing seat 5, a fixed shaft 6, a connecting assembly, and a torsion spring assembly;

[0086] like Figure 1 As shown, the fixed shaft 6 is mounted on the second side of the storage cavity 17 via the shaft seat 5;

[0087] The second side of drawer 12 is rotatably connected to fixed shaft 6 via a connecting assembly;

[0088] The torsion spring assembly is sleeved on the fixed shaft 6, with its first end contacting the second side of the shaft seat 5 or the receiving cavity 17, and its second end contacting the connecting assembly, such as... Figure 3 As shown, the drawer 12 is bent by the connecting component when it flips from the open state to the closed state.

[0089] It should be noted that, as Figure 1 As shown, both sides of the fixed shaft 6 can be mounted on the inner side of the lower housing of the storage cavity 17 via the shaft seat 5, and the fixed shaft 6 is fixed relative to the storage cavity 17; one end of the connecting assembly can be rotatably connected to the fixed shaft 6, and the other end can be fixedly connected to the inner side of the lower extension plate of the drawer 12, that is, the lower extension plate of the drawer 12 can rotate around the fixed shaft 6 through the connecting assembly; Figure 2 As shown, the torsion spring assembly includes: a left torsion spring 9 and a right torsion spring 10, as... Figure 1 As shown, the left torsion spring 9 and the right torsion spring 10 can be respectively sleeved on both sides of the fixed shaft 6, and their first ends can contact the two shaft seats 5 one by one, while their second ends contact the connecting components, as shown. Figure 3 As shown, when drawer 12 flips from the open state to the closed state, it is bent by the connecting component, which can provide elastic resistance to drawer 12, so that drawer 12 has the tendency to return to the open state; of course, the torsion spring assembly is the damping component in the rotary damping mechanism; moreover, the rotary damping mechanism is designed in this way, with simple structure and good damping effect.

[0090] Specifically, such as Figure 2 As shown, the connecting assembly includes: a U-shaped connecting plate 11 and a connecting ear;

[0091] like Figure 3 As shown, the U-shaped connecting plate 11 is disposed on the second side of the drawer 12;

[0092] One end of the connecting ear is rotatably connected to the fixed shaft 6, and the other end is connected to the inner wall of the first plate of the U-shaped connecting plate 11;

[0093] like Figure 4 As shown, the second end of the torsion spring assembly contacts the outer wall of the second plate of the U-shaped connecting plate 11, as... Figure 3 As shown, the drawer 12 is bent by the outer wall of the second plate of the U-shaped connecting plate 11 when it flips from the open state to the closed state.

[0094] It should be noted that the structure of the U-shaped connecting plate 11 can be referred to Figure 2 As shown; wherein, the first and second plates of the U-shaped connecting plate 11 are parallel, the middle plate is located where the first and second plates are parallel, and the first plate is higher than the second plate, as shown. Figure 3 As shown, the middle plate of the U-shaped connecting plate 11 is fixed to the inner side of the lower extension plate of the drawer 12, and the first plate is fixed to the bottom of the drawer 12; as Figure 2 As shown, the number of connecting ears 7 can be two, and both connecting ears 7 can be arc-shaped connecting ears, with one end respectively sleeved on both sides of the fixed shaft 6, and the other end respectively connected to both sides of the inner sidewall of the first plate; as shown Figure 1 As shown, the second ends of the left torsion spring 9 and the right torsion spring 10 respectively contact the two sides of the outer wall of the second plate, and are bent by the outer wall of the second plate when the drawer 12 flips from the open state to the closed state, so as to generate a reverse elastic torque on the second plate; wherein, the form in which the second end of the left torsion spring 9 or the right torsion spring 10 contacts the outer wall of the second plate can be referred to Figure 4 As shown, the form in which the second end of the left torsion spring 9 or the right torsion spring 10 is bent by the outer wall of the second plate can be referred to Figure 3 As shown; that is to say, the connecting components are designed in such a way that they not only facilitate contact with and bending of the second end of the torsion spring assembly to produce a damping effect during closing, but also ensure that the second side of the drawer 12 can rotate about the fixed axis 6.

[0095] Furthermore, regarding the rotational damping mechanism, it should be noted that, as Figure 5 As shown, first install the left torsion spring 9 and the right torsion spring 10 into the left and right sides of the fixed shaft 6 respectively. Then, assemble the two shaft seats 5 into the left and right sides of the fixed shaft 6 respectively, and use round head screws 4 to connect and fix each shaft seat 5 to the fixed shaft 6. The fixed shaft 6 cannot rotate radially on the shaft seat 5, nor can it move axially. The two shaft seats 5 can limit the left torsion spring 9 and the right torsion spring 10 in the axial direction respectively. Two damping plates 3 clamp the connecting ears 7 and install them into the left and right sides of the fixed shaft 6 respectively. Two disc springs 2 are installed into the left and right sides of the fixed shaft 6 respectively. The fixed shaft 6 and the connecting ears 7 are connected by a round hole. The connecting ears 7 can rotate radially on the fixed shaft 6. Then, screw the nuts 1 onto the left and right threads of the fixed shaft 6. Adjust the tightening force of the nuts 1 to adjust the... The friction between the disc spring 2, damping plate 3, and connecting ear 7; the first plate of the U-shaped connecting plate 11 is connected and fixed to the left and right connecting ears 7 by four washer screws 8 to form a rotary damping mechanism; the middle plate of the drawer 12 and the U-shaped connecting plate 11 is fixed by three washer screws 8, and the two shaft seats 5 are fixed to the inner plate on the lower side of the housing 13 by four round head screws 4; the drawer 12 and the lower part of the housing 13 are rotatably connected by the rotary damping mechanism; the spring buckle 14 and the spring 15 are fixed together in the locking cavity 19 inside the housing 13, the unlocking component passes through the housing 13 from the outside, and the plug rod 21 and the spring buckle 14 are fixed by washer screws 8, and the spring buckle 14 and the lever 16 move to compress the spring 15 in the vertical direction of the housing 13.

[0096] like Figure 4 , Figure 5 As shown, drawer 12 is fixed to a rotary damping mechanism, which is fixed to the housing 13. Drawer 12 rotates under external force. The hook 18 on drawer 12 pushes the spring buckle 14 upward through the inclined guide and compresses the spring 15. The spring rebound force of the spring 15 is used to engage the hook of drawer 12 with the spring buckle 14. At this time, the U-shaped connecting plate 11 rotates with drawer 12 and compresses the second ends of the left torsion spring 9 and the right torsion spring 10, thereby generating a rebound force in the opposite direction of rotation on the U-shaped connecting plate 11 and drawer 12, which fastens the spring buckle 14 and the hook 18 on drawer 12, thus achieving the closing and locking of drawer 12.

[0097] like Figure 4 , Figure 5 As shown, when it is necessary to open the drawer 12, simply move the lever 16 towards the compression spring 14, which will simultaneously drive the snap 15 to compress the spring 14. The snap 15 will disengage from the hook on the drawer 12, and the left torsion spring 9 and right torsion spring 10, which are in a compressed state, will flip the drawer 12 outward, thereby realizing the one-click drawer opening function.

[0098] Of course, the shape of the casing 13 can be adjusted according to the actual design;

[0099] The installation method of drawer 12, rotary damping mechanism, and housing 13 can be changed to left and right installation. The installation method of spring latch 14, spring 15, and lever 16 can be adjusted according to the design of drawer 12 and housing 13.

[0100] The design of left torsion spring 9 and right torsion spring 10 can be adjusted in quantity or combined according to actual use design;

[0101] The shape of the connecting ear 7 can be adjusted according to the actual use of the drawer 12, allowing it to be flipped out along different trajectories and at different angles.

[0102] This solution changes the traditional mechanical structure of drawer switches, adopting a structural design that combines a locking assembly, a lever unlocking mechanism, and a torsion spring damping to achieve a push-to-close and a button-to-open operation, thereby improving the user experience for medical staff.

[0103] This utility model embodiment also provides a medical device, including a drawer, wherein the drawer has the drawer structure described above. Because this solution adopts the aforementioned drawer structure, it has corresponding beneficial effects, as detailed in the preceding description, which will not be repeated here.

[0104] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0105] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drawer structure for use in medical devices, characterized in that, include: The casing (13), drawer (12), and locking mechanism; The drawer (12) is movably disposed in the housing (13) and has an open state protruding outside the housing (13) and a closed state stored inside the housing (13); The locking mechanism includes a hook (18) and a spring-loaded fastener assembly, which are respectively disposed on the drawer (12) and the housing (13); wherein, when the drawer (12) is switched from the open state to the closed state, the hook (18) can engage with the spring-loaded fastener assembly, so that the drawer (12) is fastened to the housing (13).

2. The drawer structure according to claim 1, characterized in that, The housing (13) has a storage cavity (17); The drawer (12) is movably disposed in the storage cavity (17) of the housing (13), and protrudes out of the storage cavity (17) when open, and is stored in the storage cavity (17) when closed; The inner side of the first shell wall of the housing (13) is provided with a locking cavity (19), which is located on the first side of the storage cavity (17); The snap fastener assembly is disposed in the locking cavity (19) of the first shell wall and extends into the storage cavity (17); The hook (18) is located on the first side of the drawer (12).

3. The drawer structure according to claim 2, characterized in that, The spring-loaded assembly includes: a spring-loaded latch (14) and a spring (15); The snap fastener (14) is located at the bottom of the locking cavity (19) and extends into the storage cavity (17); The spring (15) is installed and abuts against the top of the locking cavity (19) and the snap fastener (14), so that the snap fastener (14) elastically abuts against the bottom of the locking cavity (19); When the drawer (12) is switched from the open state to the closed state, the hook (18) can engage with the snap fastener (14).

4. The drawer structure according to claim 3, characterized in that, The top of the locking cavity (19) is provided with a first positioning post (20). The top of the snap fastener (14) is provided with a second positioning post (23). One end of the spring (15) is sleeved on the first positioning post (20) and abuts against the top of the locking cavity (19), while the other end is sleeved on the second positioning post (23) and abuts against the top of the snap fastener (14).

5. The drawer structure according to claim 3, characterized in that, The locking mechanism also includes an unlocking component; The unlocking component is located on the outside of the first shell wall and is used to disengage the spring buckle (14) from the latch (18) to unlock the drawer (12).

6. The drawer structure according to claim 5, characterized in that, The unlocking components include: a paddle (16) and a plug (21); The paddle (16) is movably disposed on the outer wall of the first shell along a first direction; wherein, the first direction is parallel to the axial direction of the spring (15); The insert (21) is disposed on the inner side wall of the paddle (16), and passes through the first shell wall and is inserted at the top of the snap fastener (14); wherein the top of the snap fastener (14) is located in the locking cavity (19).

7. The drawer structure according to claim 6, characterized in that, The top of the snap fastener (14) has a through hole for the insertion rod (21) to pass through; The end of the insertion rod (21) is provided with an internal threaded hole along the axial direction; The unlocking component also includes a locking screw; The locking screw is located on the first end face of the through hole of the spring clip (14) and is tightened into the internal thread hole of the insert rod (21); wherein the first end face of the through hole is away from the lever (16).

8. The drawer structure according to claim 5, characterized in that, It also includes a rotation damping mechanism, through which the drawer (12) can be flipped and disposed on the second side of the storage cavity (17); wherein, when the drawer (12) is flipped from the open state to the closed state, the rotation damping mechanism also provides elastic resistance to the drawer (12), so that the drawer (12) has a tendency to return to the open state; Once unlocked, the drawer (12) can be flipped from the closed state to the open state under the action of the elastic resistance.

9. The drawer structure according to claim 8, characterized in that, The rotary damping mechanism includes: a bearing seat (5), a fixed shaft (6), a connecting assembly, and a torsion spring assembly; The fixed shaft (6) is disposed on the second side of the storage cavity (17) via the shaft seat (5); The second side of the drawer (12) is rotatably connected to the fixed shaft (6) via the connecting assembly; The torsion spring assembly is sleeved on the fixed shaft (6), and its first end contacts the second side of the shaft seat (5) or the storage cavity (17), and its second end contacts the connecting assembly. When the drawer (12) is flipped from the open state to the closed state, it is bent by the connecting assembly.

10. The drawer structure according to claim 9, characterized in that, The connecting assembly includes: a U-shaped connecting plate (11) and a connecting lug (7); The U-shaped connecting plate (11) is disposed on the second side of the drawer (12); One end of the connecting ear (7) is rotatably connected to the fixed shaft (6), and the other end is connected to the inner wall of the first plate of the U-shaped connecting plate (11); The second end of the torsion spring assembly contacts the outer wall of the second plate of the U-shaped connecting plate (11) and is bent by the outer wall of the second plate of the U-shaped connecting plate (11) when the drawer (12) is flipped from the open state to the closed state.

11. A medical device comprising a drawer, characterized in that, The drawer is a drawer structure as described in any one of claims 1-10.

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