Surgical instrument storage box for field operation environment

Abstract

The surgical instrument storage box for the field operation environment comprises a box body and a box cover, the hinged end of the box body and the hinged end of the box cover extend to be provided with a first hinged part and a second hinged part which correspond to each other, and the first hinged part and the second hinged part are connected and limited through a coaxially-penetrating hinged shaft; wherein a fixing frame is installed on the box cover, a set of fixing bases are installed in a frame opening of the fixing frame in a linear array mode, each fixing base is of a box-shaped structure, a set of fixing blocks arranged in a linear array mode are arranged in the opening end of each fixing base in a sliding mode through an elastic piece, and the outer ends of the fixing blocks stretch out of the fixing bases. According to the surgical instrument fixing device, the set of fixing bases are installed in the box cover, the fixing blocks are elastically arranged on the fixing bases, and when the fixing blocks are in the vertical state, the outer ends of the fixing blocks can protrude out of the box cover, that is, when the box cover and the box body are in the closed state, the fixing blocks make close contact with the surgical instruments, and therefore the effect of fixing the surgical instruments is achieved.

Description

Technical Field

[0001] The invention relates to the field of surgical instrument storage boxes, in particular to a surgical instrument storage box for a field environment. Background Art

[0002] The field surgery storage box is designed for field environments and is used to safely and conveniently store and transport surgical instruments. The box is sturdy and durable, shockproof and drop-proof, and can adapt to harsh battlefield conditions. At present, the field surgery storage boxes in the existing technology have relatively single functions. In some emergency field rescue processes, due to the limited surgical scene environment, some surgical instruments cannot be placed in a classified and spaced manner, which easily affects the use and effect of the surgical process.

[0003] After searching, the Chinese invention patent (application number CN202011153022.3) discloses "a surgical instrument box for field emergency rescue", which includes a box body, a drawer, a third storage box and a fourth storage box. The upper part of the box body forms a first storage box, and the inner cavity of the drawer forms a second storage box; multiple third storage boxes are hinged to the box body through a first connecting rod group; multiple fourth storage boxes are hinged to the box body through a second connecting rod group; when the third storage box and the fourth storage box move to the first position, multiple third storage boxes and multiple fourth storage boxes overlap each other; when the third storage box and the fourth storage box move to the second position, multiple third storage boxes and multiple fourth storage boxes are spread out from each other. There is no need to take the surgical instruments out of the box body, and each open storage box can be directly used as a surgical instrument placement table to facilitate doctors to take surgical instruments. It solves the problem in the prior art that in a field emergency rescue environment, surgical instruments cannot be classified and neatly placed after being taken out of the instrument box, which affects surgical operations.

[0004] Although the surgical instrument box in the above technical solution provides a storage box as a surgical instrument placement table to facilitate doctors to take surgical instruments, during field rescue, the surgical instrument box may be in some high-speed bumpy movement state during the rescue process. The bumping of the box can easily cause relative movement of the surgical instruments in the box, causing damage to the box and the instruments, reducing its practicality.

[0005] Therefore, we make improvements to this and propose a surgical instrument storage box for field environments. Summary of the invention

[0006] The purpose of the present invention is to address the problem that during the current field rescue process, the surgical instrument box may be in some high-speed bumpy motion state during the rescue process. The bumping of the box body can easily cause relative movement of the surgical instruments in the box body, causing damage to the box body and the instruments, reducing its practicality.

[0007] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following surgical instrument storage box for field environment to improve the above-mentioned problem.

[0008] The specific application is as follows:

[0009] A surgical instrument storage box for field environments comprises a box body and a box cover, wherein the hinged ends of the box body and the box cover are respectively extended with corresponding first hinge parts and second hinge parts, and the first hinge parts and the second hinge parts are connected and limited by a coaxial hinge shaft; wherein a fixed frame is installed on the box cover, and a group of fixed seats are installed in a linear array in the frame opening of the fixed frame, and the fixed seat is a box-shaped structure and a group of fixed blocks arranged in a linear array are slidably arranged in the open end thereof through an elastic member, and the outer ends of the fixed blocks extend out of the fixed seat, and the side of the fixed seat has a rotating shaft installed on the side of the fixed frame, and a gear is installed on the rotating shaft, and the side of the fixed frame is also slidably provided with a rack, and the rack is meshed with the gears on the sides of all the fixed seats.

[0010] As a preferred technical solution of the present application, the first hinged part is fixed at the middle part of the hinged end of the box body, and the second hinged part is provided with two and symmetrically fixed at both sides of the hinged end of the box cover. The first hinged part and the second hinged part are both cylindrical structures and have coaxial mounting holes in the middle for the hinge shaft to pass through and install.

[0011] As a preferred technical solution of the present application, the fixed frame includes a pair of L-shaped side panels that are symmetrically distributed, and a mounting plate is respectively fixed between the two ends of the two L-shaped side panels. A positioning plate is provided in the box cover and is fixed corresponding to the mounting plate. The fixed seat is rotatably installed between the two L-shaped side panels, and a gap is left between two adjacent fixed seats for the fixed block to rotate through.

[0012] As a preferred technical solution of the present application, a gap is left between adjacent fixing blocks on the fixing seat, and the elastic member is a first spring fixedly installed between the inner end of the fixing block and the inner wall of the fixing seat.

[0013] As a preferred technical solution of the present application, the openings of the two second hinged parts are both outward, and a follower mechanism for adjusting the angle of the fixed seat with the opening and closing rotation of the box cover is provided inside the two second hinged parts, and the follower mechanism includes:

[0014] A first piston member fixedly mounted in the second hinged portion, wherein the output end of the first piston member faces inward and is mounted with a driven seat, wherein the driven seat has an annular block coaxial with the second hinged portion, and the height of the annular block gradually increases from the middle to the other end;

[0015] A driving seat is fixedly installed in the first hinged part, a ball bearing slidably connected to the annular block is embedded in the driving seat, and an annular notch for the annular block to pass through is formed at the inner end of the second hinged part;

[0016] A second piston member is disposed on the fixed frame, wherein an output end of the second piston member is fixedly connected to the rack, and a rear end of the second piston member is communicated with a rear end of the first piston member;

[0017] The elastic reset member is arranged between the driven seat and the first piston member.

[0018] As a preferred technical solution of the present application, a mounting frame is arranged in the second hinged part, and the mounting frame includes three mutually parallel and coaxial circular plates, and a first shaft tube penetrating the three circular plates. The first piston member is installed between the two outward circular plates, and a group of guide rods are interspersed on the inner circular plate. One end of the guide rod is fixed to the driven seat, and the other end is provided with the same driven plate. The elastic member is a second spring fixedly installed between the driven plate and the circular plate, and the output end of the first piston member is fixedly connected to the driven plate.

[0019] As a preferred technical solution of the present application, the inner wall of the second hinged portion is provided with a convex ridge, and the sides of the three circular plates are provided with positioning notches corresponding to the convex ridge.

[0020] As a preferred technical solution of the present application, both ends of the first hinged part are open, and a second shaft tube is coaxially fixed in the middle. After the mounting frame is inserted into the second hinged part, the first shaft tube and the second shaft tube are connected to form a pipe for the hinge shaft to pass through, and the middle part of the drive seat has a mounting sleeve that is compatible with the second shaft tube.

[0021] As a preferred technical solution of the present application, a connecting slot connected to the second hinged portion is provided on the side of the box cover, the second piston member is fixedly installed at the bottom of the inner end of the L-shaped side plate, and the opposite ends of the first piston member and the second piston member are connected by a pipe fitting passing through the connecting slot.

[0022] As a preferred technical solution of the present application, an inner box body is also adapted to be installed in the box body, and the bottom inner wall of the inner box body has anti-slip texture.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the scheme of this application:

[0025] A fixing frame is installed in the box cover, and a group of fixing seats are rotatably installed in the frame opening of the fixing frame. A fixing block is elastically arranged on the fixing seat. When the fixing seat is in a vertical state, the outer end of the fixing block can protrude from the box cover, that is, when the box cover and the box body are closed, the outer end of the fixing block can extend into the box body, and then through the elastic action of the elastic member, the fixing block can be in close contact with the surgical instrument, thereby achieving the effect of fixing the surgical instrument. At the same time, the fixing seat can form a relatively flat panel in a horizontal state, which is convenient for placing some surgical instruments and medicines in the operating state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a surgical instrument storage box for a field environment provided in this application;

[0027] Figure 2 A schematic diagram of the structure of a surgical instrument storage box for field environments provided by the present application, in which the box body and the box cover are separated;

[0028] Figure 3 Provided for this application Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 A schematic diagram of the structure of a surgical instrument storage box for a field environment provided by the present application, wherein the box cover, the follower mechanism and the fixed frame are separated;

[0030] Figure 5 Provided for this application Figure 4 The enlarged view of point B in the middle;

[0031] Figure 6 A schematic diagram of the structure of a fixing seat and a fixing block of a surgical instrument storage box for a field environment provided by the present application;

[0032] Figure 7 A schematic diagram of the structure of a surgical instrument storage box for field environments provided by the present application, in which the box body and the drive seat are separated;

[0033] Figure 8 A schematic diagram of the structure of a mounting frame and a driving seat of a surgical instrument storage box for a field environment provided by the present application;

[0034] Fig. 9 A state diagram of a fixing block of a surgical instrument storage box for a field environment provided by the present application when the box cover is not completely opened.

[0035] Indicated in the figure:

[0036] 100, box body; 101, first hinged portion; 102, inner box body; 103, second shaft tube;

[0037] 200, box cover; 201, second hinged portion; 202, annular notch; 203, mounting hole; 204, positioning plate; 205, connecting notch;

[0038] 300, fixed frame; 301, L-shaped side plate; 302, mounting plate;

[0039] 400, fixed seat; 401, fixed block; 402, rotating shaft; 403, gear; 404, first spring;

[0040] 500, hinge shaft;

[0041] 600, first piston member; 601, rack; 602, second piston member; 603, pipe member; 604, follower seat; 605, guide rod; 606, second spring; 607, follower plate;

[0042] 700, mounting frame; 701, first shaft tube; 702, circular plate;

[0043] 800, driving seat; 801, mounting sleeve; 802, ball bearing. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0045] The present invention will be further described below in conjunction with the embodiments.

[0046] Example: Refer to Figure 1 A surgical instrument storage box for a field environment includes a box body 100 and a box cover 200. The hinged ends of the box body 100 and the box cover 200 are respectively extended with corresponding first hinge parts 101 and second hinge parts 201. The first hinge part 101 and the second hinge part 201 are connected and limited by a coaxial hinge shaft 500. Through the box body 100, commonly used surgical instruments such as scalpels, surgical scissors, surgical forceps, and related surgical drugs such as disinfectants and medical cotton cloths can be stored in the box body 100, so as to pre-treat the wounded in some more urgent outdoor environments with limited conditions;

[0047] In order to solve the problem of fixing surgical instruments, such as Fig. 9As shown in the figure, a fixing frame 300 is installed on the box cover 200, and a group of fixing seats 400 are installed in a linear array in the frame opening of the fixing frame 300. The fixing seat 400 is a box-shaped structure, and a group of fixing blocks 401 arranged in a linear array are slidably arranged in the open end thereof through an elastic member, and the outer end of the fixing block 401 extends out of the fixing seat 400. The side of the fixing seat 400 has a rotating shaft 402 installed on the side of the fixing frame 300, and a gear 403 is installed on the rotating shaft 402. A rack 601 is also slidably arranged on the side of the fixing frame 300, and the rack 601 is meshed with the gears 403 on the sides of all the fixing seats 400;

[0048] Among them, when the fixing block 401 is in a vertical state, the outer end of the fixing block 401 can protrude from the box cover 200, that is, when the box cover 200 and the box body 100 are closed, the outer end of the fixing block 401 can extend into the box body 100, and then through the elastic action of the elastic member, the fixing block 401 can be in close contact with the surgical instrument, thereby achieving the effect of fixing the surgical instrument, reducing the probability of the surgical instrument making relative movement in the box body 100 when the surgical instrument box is in some high-speed bumpy motion state during the rescue process, and causing damage to the box body 100 and the instrument, thereby improving the practicality of the surgical instrument box; at the same time, the fixing seat 400 is rotated into the frame opening set in the fixing frame 300, which can drive the rack 601 to make linear motion, so that all the fixing seats 400 are synchronously rotated to a horizontal state (such as Figure 1 As shown in the figure, a relatively flat panel is formed between all the fixing seats 400, which is convenient for placing some surgical instruments and medicines. It should be noted that when placing surgical instruments, a layer of medical cotton cloth and other separators can be placed on the panel formed by the fixing seats 400 to avoid contamination caused by direct contact between the surgical instruments and the fixing seats 400, while ensuring the normal use of the surgical instruments.

[0049] Specifically, refer to Figure 2 The first hinge part 101 is fixed to the middle of the hinge end of the box body 100, and the second hinge part 201 is provided with two and symmetrically fixed to the two sides of the hinge end of the box cover 200. The first hinge part 101 and the second hinge part 201 are both cylindrical structures and the middle part is coaxially provided with a mounting hole 203 for the hinge shaft 500 to penetrate and install;

[0050] Preferably, in the present application, the box body 100 and the box cover 200 are of the same height so that surgical instruments can be stored in the box body 100, and related structures such as a fixing block 401 for fixing the surgical instruments are provided in the box cover 200. At the same time, after the box cover 200 is opened, the box cover 200 and the box body 100 are relatively flat, which is convenient for the use of surgical instruments.

[0051] Further, see Figure 4 and Figure 5The fixing frame 300 includes a pair of L-shaped side plates 301 which are symmetrically distributed. A mounting plate 302 is fixed between the two ends of the two L-shaped side plates 301. The box cover 200 has a positioning plate 204 which is fixed and installed corresponding to the mounting plate 302. The fixing seat 400 is rotatably installed between the two L-shaped side plates 301, and a gap is left between two adjacent fixing seats 400 for the fixing block 401 to rotate through. Preferably, the mounting plate 302 is located above the positioning plate 204, and the fixing frame 300 can be fixed in the box cover 200 by bolting and bonding, so as to facilitate The fixing frame 300 is installed between the box cover 200; a gap is left between adjacent fixing blocks 401 on the fixing seat 400 to facilitate the sliding of the fixing block 401 on the fixing seat 400. The elastic member is a first spring 404 fixedly installed between the inner end of the fixing block 401 and the inner wall of the fixing seat 400. The elastic action of the first spring 404 can ensure the fixing effect of the fixing block 401 when it contacts the surgical instrument in the box body 100. At the same time, after the box cover 200 is opened, the fixing block 401 can be reset. The overall structure is relatively neat, which is convenient for forming a placement panel.

[0052] The above-mentioned fixing base 400 is provided with a plurality of fixing bases 400, and all of them are driven by meshing of the rack 601 and the plurality of gears 403. Considering that in actual application scenarios, the box cover 200 does not need to be fully opened (i.e., forming a placement plane), and at the same time, the convenience of driving the rack 601 to move, a follower mechanism is also provided in the present application;

[0053] Specifically, refer to Figures 2 to 8 The openings of the two second hinged parts 201 are both outward, and a follow-up mechanism for adjusting the angle of the fixing seat 400 with the opening and closing of the box cover 200 is provided inside. The follow-up mechanism includes:

[0054] A first piston member 600 is fixedly mounted in the second hinged portion 201, the output end of the first piston member 600 faces inward and is mounted with a driven seat 604, the driven seat 604 has an annular block (not numbered in the figure) coaxial with the second hinged portion 201, and the height of the annular block gradually increases from the middle to the other end;

[0055] The driving seat 800 is fixedly installed in the first hinge part 101. A ball 802 slidably connected to the annular block is embedded in the driving seat 800. The inner end of the second hinge part 201 is provided with an annular notch 202 for the annular block to pass through.

[0056] A second piston member 602 is disposed on the fixed frame 300, wherein the output end of the second piston member 602 is fixedly connected to the rack 601, and the tail end of the second piston member 602 is connected to the tail end of the first piston member 600;

[0057] An elastic return member, disposed between the driven seat 604 and the first piston member 600;

[0058] Through the above-mentioned structures such as the first piston member 600, the driven seat 604, the driving seat 800, the second piston member 602 and the elastic reset member, and the cooperation between the structures, the box cover 200 can be opened and closed to Fig. 9 When the fixing base 400 and the box cover 200 are in the middle state, the fixing base 400 and the box cover 200 are still in the vertical state. Figure 1 When the box cover 200 is in the middle state, the fixed seat 400 and the box cover 200 still maintain a horizontal state to meet the use of the storage box in daily or surgical states. Specifically, the working principle of the follower mechanism is: during the opening process of the box cover 200, the first piston member 600 and the driven seat 604 rotate synchronously along the hinge shaft 500 with the box cover 200, and correspondingly, the annular block on the driven seat 604 moves synchronously. Since the height from the middle position to the other end of the annular block gradually increases, the position of the ball 802 on the driving seat 800 is fixed with the box body 100, and the fixed ball 802 will squeeze the annular block from the middle position of the annular block, and then the first piston member 600 is squeezed, and the medium inside it will enter the second piston member 602, thereby driving the rack 601 to make linear motion. When the box cover 200 is fully opened, at this time, the fixed seat 400 maintains a horizontal state. On the contrary, the elastic reset member can ensure that the ball 802 is in contact with the annular block, and at the same time drive the output end of the first piston member 600 and the driven seat 604 to reset.

[0059] Reference Figure 4 and Figure 8 , a mounting frame 700 is provided in the second hinged portion 201, and the mounting frame 700 includes three mutually parallel and coaxial circular plates 702, and a first shaft tube 701 penetrating the three circular plates 702, the first piston member 600 is installed between the two outward circular plates 702 (the outermost circular plate 702 has a hole for the first piston member 600 to pass through, which is marked in the figure), and a group of guide rods 605 are inserted on the inward circular plate 702, one end of the guide rod 605 is fixed to the driven seat 604, and the other end is provided with the same driven plate 607, and the elastic member is fixedly installed between the driven plate 607 and the circular plate 70 2, the output end of the first piston member 600 is fixedly connected to the driven plate 607. Through the cooperation of the above structure, the second spring 606 can be set to keep the annular block from moving with the rotation angle of the box cover 200, so that when the box cover 200 and the box body 100 are closed, the annular block returns to the initial position, that is, the ball 802 contacts the lower end of the annular block; at the same time, through the setting of the mounting frame 700, it is convenient to remove the first piston member 600, the driven seat 604, the driving seat 800 and the elastic reset member and other structures from the second hinge part 201, so as to facilitate the installation and replacement of the structure.

[0060] Reference Figure 2The inner wall of the second hinged portion 201 is provided with ridges, and the sides of the three circular plates 702 are provided with positioning notches corresponding to the ridges, so as to limit the mounting frame 700 and facilitate its synchronous rotation with the box cover 200.

[0061] Reference Figure 4 Both ends of the first hinge part 101 are open, and a second shaft tube 103 is coaxially fixed in the middle. After the mounting frame 700 is inserted into the second hinge part 201, the first shaft tube 701 and the second shaft tube 103 are connected to form a pipeline for the hinge shaft 500 to pass through. The middle part of the driving seat 800 has a mounting sleeve 801 that is compatible with the second shaft tube 103, which is convenient for fixing the mounting frame 700 on both sides of the box cover 200 through the cooperation of the hinge shaft 500 and fasteners such as bolts.

[0062] Reference Figure 4 A connecting slot 205 communicating with the second hinged portion 201 is provided on the side of the box cover 200, and the second piston member 602 is fixedly installed at the bottom of the inner end of the L-shaped side plate 301. The first piston member 600 and the opposite ends of the second piston member 602 are connected through a pipe member 603 passing through the connecting slot 205, so that the first piston member 600 can be easily taken out together with the fixed frame 300.

[0063] Reference Figure 1 An inner box body 102 is also adapted to be installed in the box body 100. The bottom inner wall of the inner box body 102 has anti-slip textures, which improves the fixing effect of the surgical instruments and makes it convenient to take out the inner box body 102 for disinfection.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A surgical instrument storage box for use in a field environment, comprising a box body (100) and a box cover (200), characterized in that: The hinged ends of the box body (100) and the box cover (200) are respectively extended with corresponding first hinged parts (101) and second hinged parts (201), and the first hinged parts (101) and the second hinged parts (201) are connected and limited by a coaxial hinge shaft (500); The box cover (200) is provided with a fixing frame (300), a group of fixing seats (400) are installed in a linear array in the frame opening of the fixing frame (300), the fixing seat (400) is a box-shaped structure, and a group of fixing blocks (401) arranged in a linear array are slidably arranged in the opening end thereof through an elastic member, the outer end of the fixing block (401) extends out of the fixing seat (400), the side of the fixing seat (400) has a rotating shaft (402) installed on the side of the fixing frame (300), a gear (403) is installed on the rotating shaft (402), and a rack (601) is also slidably arranged on the side of the fixing frame (300), and the rack (601) is meshed with the gears (403) on the sides of all the fixing seats (400).

2. A surgical instrument storage box for field environments according to claim 1, characterized in that: The first hinged part (101) is fixed to the middle of the hinged end of the box body (100), and the second hinged part (201) is provided with two and symmetrically fixed to the two sides of the hinged end of the box cover (200), and the first hinged part (101) and the second hinged part (201) are both cylindrical structures and have a coaxial installation hole (203) in the middle for the hinge shaft (500) to pass through and install.

3. A surgical instrument storage box for field environments according to claim 2, characterized in that: The fixed frame (300) comprises a pair of symmetrically distributed L-shaped side plates (301), a mounting plate (302) is respectively fixed between the two ends of the two L-shaped side plates (301), a positioning plate (204) is provided in the box cover (200) and is fixedly mounted corresponding to the mounting plate (302), the fixed seat (400) is rotatably mounted between the two L-shaped side plates (301), and a gap is reserved between two adjacent fixed seats (400) for the fixed block (401) to rotate through.

4. A surgical instrument storage box for field environments according to claim 3, characterized in that: A gap is left between adjacent fixing blocks (401) on the fixing seat (400), and the elastic member is a first spring (404) fixedly installed between the inner end of the fixing block (401) and the inner wall of the fixing seat (400).

5. A surgical instrument storage box for field environments according to claim 4, characterized in that: The openings of the two second hinged parts (201) are both outwardly facing, and a follower mechanism is disposed inside the two second hinged parts for adjusting the angle of the fixing seat (400) as the box cover (200) is opened and closed. The follower mechanism comprises: A first piston member (600) is fixedly mounted in the second hinged portion (201), wherein the output end of the first piston member (600) faces inward and is mounted with a driven seat (604), wherein the driven seat (604) has an annular block coaxial with the second hinged portion (201), and the height of the annular block gradually increases from the middle to the other end; A driving seat (800) is fixedly installed in the first hinged part (101), a ball (802) slidably connected to the annular block is embedded in the driving seat (800), and an annular notch (202) for the annular block to pass through is formed at the inner end of the second hinged part (201); A second piston member (602) is arranged on the fixed frame (300), the output end of the second piston member (602) is fixedly connected to the rack (601), and the tail end of the second piston member (602) is connected to the tail end of the first piston member (600); The elastic return member is arranged between the driven seat (604) and the first piston member (600).

6. A surgical instrument storage box for field environments according to claim 5, characterized in that: A mounting frame (700) is arranged inside the second hinged portion (201), and the mounting frame (700) includes three mutually parallel and coaxial circular plates (702), and a first shaft tube (701) penetrating the three circular plates (702); the first piston member (600) is installed between the two outward circular plates (702), and a group of guide rods (605) are inserted on the inward circular plate (702); one end of the guide rod (605) is fixed to the driven seat (604), and the other end is provided with the same driven plate (607); the elastic member is a second spring (606) fixedly installed between the driven plate (607) and the circular plate (702), and the output end of the first piston member (600) is fixedly connected to the driven plate (607).

7. A surgical instrument storage box for field environments according to claim 6, characterized in that: The inner wall of the second hinged portion (201) is provided with a convex ridge, and the sides of the three circular plates (702) are provided with positioning notches corresponding to the convex ridge.

8. A surgical instrument storage box for field environments according to claim 7, characterized in that: Both ends of the first hinged portion (101) are open, and a second shaft tube (103) is coaxially fixed in the middle thereof; after the mounting frame (700) is inserted into the second hinged portion (201), the first shaft tube (701) and the second shaft tube (103) are butted against each other to form a channel for the hinge shaft (500) to pass through; and a mounting sleeve (801) adapted to the second shaft tube (103) is provided in the middle of the driving seat (800).

9. A surgical instrument storage box for field environments according to claim 8, characterized in that: The side of the box cover (200) is provided with a connecting slot (205) connected to the second hinged portion (201); the second piston member (602) is fixedly mounted on the bottom of the inner end of the L-shaped side plate (301); the first piston member (600) and the opposite ends of the second piston member (602) are connected via a pipe member (603) passing through the connecting slot (205).

10. A surgical instrument storage box for field environments according to claim 9, characterized in that: An inner box body (102) is also adapted to be installed inside the box body (100), and the bottom inner wall of the inner box body (102) has anti-slip patterns.

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