A first aid kit

Abstract

The application relates to the field of medical equipment and discloses a first-aid kit which comprises six first-aid small boxes, the first-aid small box comprises a box body, an internal cavity is formed in the box body, an end slot is formed in one side of the internal cavity, the end slots of two adjacent box bodies are oppositely arranged, a medicine placing piece is arranged in the internal cavity, a positioning fixing piece is arranged on the top of the box body, two hinges are symmetrically arranged between the two adjacent box bodies, a taking assembly is arranged on the top of the two box bodies at the end, the medicine placing piece comprises a placing box movably arranged in the internal cavity, the outer wall of the placing box is tightly attached to the inner wall of the end slot, the two adjacent box bodies are connected through the hinges, when medicines are taken, each box body is in a folded state through the hinges, the equipment volume is reduced, and the taking and use are facilitated, when each box body is in an unfolded state through the hinges, a straight plate-shaped stretcher can be formed, and a treatment platform can also be formed.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically a first aid kit. Background Technology

[0002] According to the patent document with authorization announcement number "CN117582342B" and invention title "A Combined Portable First Aid Kit", the description states that by pulling the lower storage box to both sides, the lower storage box moves the upper storage box to both sides simultaneously via a folding rod until the upper and lower storage boxes' adjacent sides contact each other. The storage boxes then use the folding rod to pull the elastic structure, causing the upper and lower storage boxes to misalign, thus lowering the height of the upper storage box. The elastic structure then pulls back the lower storage box, causing the adjacent side walls of the upper and lower storage boxes to fit together, with no obstruction between the storage boxes, ensuring that items can be retrieved. Furthermore, the contact point with the ground moves outwards with the movement of the lower storage box, preventing a shift in the center of gravity after items are retrieved, thus avoiding tilting and collapse during use and increasing the stability of the first aid kit. However, the following drawbacks still exist:

[0003] When using a first aid kit, it can only perform simple functions such as taking out and storing medicines and other items. When carrying out rescue in complex environments, it may be necessary to carry out the injured or provide on-site treatment, thus requiring a first aid kit that can form a stretcher and a treatment platform. Summary of the Invention

[0004] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a first aid kit, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a first aid kit, comprising six first aid boxes, each first aid box comprising a box body, an internal cavity being formed inside the box body, an end groove being formed on one side of the internal cavity, the opening directions of the end grooves on the upper parts of two adjacent boxes being opposite, a medicine placement component being installed inside the internal cavity, and a positioning and fixing component being installed on the top of the box body.

[0006] Two hinges are symmetrically installed between two adjacent boxes, and the top of the two end boxes are equipped with a retrieval component.

[0007] The drug placement component includes a placement box movably installed inside the internal cavity. The outer wall of the placement box is in close contact with the inner wall of the end groove. A rotating fixing component is installed at the end of the placement box away from the end groove. The rotating fixing component includes a limiting plate disposed on the side of the placement box away from the end groove. The outer wall of the limiting plate is in close contact with the inner wall of the internal cavity. A limiting groove is formed in the middle of the limiting plate. A limiting shaft is fixedly installed at the end of the placement box near the limiting plate. The limiting shaft is rotatably installed inside the limiting groove. A snap-fit ​​groove is formed on the limiting shaft.

[0008] Preferably, the placement box has a placement groove inside, a placement groove on one side of the placement box, an installation groove on one side of the placement box, a cover on one side of the installation groove, a rotating shaft installed at one end of the cover, the rotating shaft being rotatably connected to the placement box, and a buckle being installed between the placement box and the cover.

[0009] Preferably, the placement box is equipped with a pull-out handle at one end near the end slot, and the upper and lower sides of the placement box are each provided with a first slot at one end near the end slot.

[0010] Preferably, the limiting plate has two movable grooves inside, which are symmetrically arranged on the upper and lower sides of the limiting rotating groove. A connecting groove is provided between the movable groove and the limiting rotating groove. The inner diameter of the connecting groove is the same as the inner diameter of the locking groove. A second locking groove is provided at the end of the movable groove away from the limiting rotating groove. The second locking groove extends to the end of the limiting plate. The inner diameter of the second locking groove is the same as the inner diameter of the first locking groove.

[0011] Preferably, a movable block is movably installed inside the movable groove, and a snap-fit ​​rod is fixedly installed on the side of the movable block near the limiting rotating groove. One end of the movable block contacts the inner wall of the end of the movable groove away from the limiting rotating groove, and one end of the snap-fit ​​rod passes through the connecting groove and contacts the outer wall of the limiting shaft. A return spring is fixedly installed on the side of the movable block near the limiting rotating groove, and one end of the return spring is fixedly connected to the inner wall of the end of the movable groove near the limiting rotating groove.

[0012] Preferably, the positioning and fixing components include double-sided snap-fit ​​components and single-sided snap-fit ​​components, wherein the double-sided snap-fit ​​components and single-sided snap-fit ​​components on two adjacent housings are positioned opposite each other.

[0013] Preferably, the positioning and fixing component includes a side inner groove formed inside the housing, with two side inner grooves symmetrically arranged on the upper and lower sides of the inner cavity. Two rod grooves are symmetrically formed on both the upper and lower sides of the side inner groove, and the two rod grooves correspond to the first and second locking grooves respectively. An inner plate is slidably installed inside the side inner groove. A locking block is installed on the side of the two side inner grooves that are close to each other. The locking block passes through the rod groove to the inside of the inner cavity, and the two locking blocks are respectively locked into the first and second locking grooves. The locking block is symmetrically installed on the side inner groove of the double-sided locking component away from the inner cavity.

[0014] Preferably, a sliding groove is provided on the side of the inner side groove away from the end groove, a connecting frame is installed on the side of the inner plate near the sliding groove, and a pin is installed on the connecting frame. Two sets of positioning grooves are symmetrically arranged on the side of the inner side groove away from the end groove, and the two sets of positioning grooves correspond to two pins respectively. The positioning groove set consists of three positioning grooves.

[0015] Preferably, the retrieval assembly includes a lifting frame fixedly installed at the top of both end boxes, two limiting side plates symmetrically installed on the lifting frame, a U-shaped frame installed between the limiting side plates, the lifting frame being located inside the U-shaped frame, a middle plate installed between the two U-shaped frames, and a retrieval handle installed at the top of the middle plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention connects two adjacent boxes with hinges. When medicines are taken out, each box is folded up by the hinges, reducing the size of the equipment and making it easy to take out and use. When each box is unfolded by the hinges, it can form a straight stretcher, which is convenient for emergency transport of patients. It can also form a treatment platform, which is convenient for patients to lie flat for emergency treatment.

[0018] This invention features a placement box that is rotatably connected to a limiting plate. It is in a vertical position within the internal cavity for easy storage. When the placement box is pulled out, it can rotate to a horizontal position for easy access by pharmaceutical equipment. At the same time, the slots at two adjacent ends are opened in opposite directions, so that all placement boxes are pulled out at the same time without any impact.

[0019] In this invention, when the placement box is located inside the internal cavity, two locking blocks on the internal plate respectively engage with the first and second locking slots to secure the placement box. After the placement box is pulled out, the second locking slot on the limiting plate corresponds to the position of the locking block near the end slot, thereby still achieving the fixation of the limiting plate and limiting the placement box.

[0020] In this invention, after the placement box is pulled outward, the locking block engages into the second locking groove to limit the placement box. At the same time, the locking rod is pushed towards the limiting shaft so that the locking rod engages into the locking groove, thereby locking and fixing the placement box, which facilitates the use of medicine equipment.

[0021] This invention features double-sided and single-sided snap-fit ​​components at both ends of the housing. When the equipment is unfolded, the double-sided and single-sided snap-fit ​​components of two adjacent housings are at the same end. The single-sided snap-fit ​​component is used to snap and fix the placement box, while the double-sided snap-fit ​​component is used to snap and fix two adjacent housings, ensuring the assembly stability of multiple housings forming a stretcher.

[0022] This invention uses an even number of boxes, with lifting frames installed on the top of the boxes at both ends. The two lifting frames are engaged by U-shaped frames at both ends of the middle plate for easy retrieval. When the boxes are unfolded to form a stretcher, the two lifting frames face away from each other at the ends of the two boxes, allowing for stretcher lifting operations and making it convenient to use. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the first aid kit structure of the present invention;

[0026] Figure 2 This is a side view of the first aid kit of the present invention;

[0027] Figure 3 This is a schematic diagram of the bottom structure of the first aid kit of the present invention;

[0028] Figure 4 This is a schematic diagram of the external structure of the housing of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the housing of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the drug placement component of the present invention;

[0031] Figure 7 This is a schematic diagram of the rotating fixing component structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the positioning and fixing component structure of the present invention;

[0033] In the diagram: 1. First aid kit; 101. Kit body; 102. Internal cavity; 103. End groove; 104. Medication holder; 1041. Storage box; 1042. Storage slot; 1043. Mounting slot; 1044. Cover; 1045. Rotating shaft; 1046. Buckle; 1047. First slot; 1048. Pull-out handle; 105. Rotating fixing component; 1051. Limiting plate; 1052. Limiting rotating groove; 1053. Limiting shaft; 1054. Snap-fit ​​groove; 1055. Movable groove; 1056. Second slot; 1057. Connecting slot; 1058. Movable block; 1059. Snap-fit ​​rod; 10510. Return spring; 106. Positioning fastener; 1061. Side inner slot; 1062. Rod slot; 1063. Internal plate; 1064. Snap-fit ​​block; 1065. Snap-fit ​​block; 1066. Slide groove; 1067. Connecting frame; 1068. Pin; 1069. Positioning slot assembly; 2. Hinge; 3. Retrieval assembly; 301. Lifting frame; 302. Limiting side plate; 303. U-shaped frame; 304. Middle plate; 305. Retrieval handle. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Example 1, by Figures 1-8 The present invention relates to a first aid kit, comprising six first aid boxes 1. Each first aid box 1 includes a box body 101, an internal cavity 102 is formed inside the box body 101, an end groove 103 is formed on one side of the internal cavity 102, the opening directions of the end grooves 103 on the upper part of two adjacent boxes 101 are opposite, a medicine placement component 104 is installed inside the internal cavity 102, and a positioning and fixing component 106 is installed on the top of the box body 101.

[0036] The drug placement component 104 includes a placement box 1041 movably installed inside the internal cavity 102. When horizontal, the width of the placement box 1041 is less than the sum of the widths of the three boxes 101. The outer wall of the placement box 1041 is in close contact with the inner wall of the end groove 103. A rotating fixing member 105 is installed at the end of the placement box 1041 away from the end groove 103. A placement groove 1042 is formed inside the placement box 1041, and a placement groove 1042 is formed on one side of the placement box 1041. A mounting groove 1043 is provided on one side of the mounting groove 1043, and a cover 1044 is provided on one side of the mounting groove 1043. A rotating shaft 1045 is installed at one end of the cover 1044, and the rotating shaft 1045 is rotatably connected to the placement box 1041. A buckle 1046 is installed between the placement box 1041 and the cover 1044. A pull-out handle 1048 is installed at the end of the placement box 1041 near the end groove 103. First slots 1047 are provided on the upper and lower sides of the placement box 1041 near the end groove 103.

[0037] The rotating fixing component 105 includes a limiting plate 1051 disposed on the side of the placement box 1041 away from the end groove 103. The placement box 1041 is rotatably connected to the limiting plate 1051 and is in a vertical position within the internal cavity 102 for easy storage. When the placement box 1041 is pulled outward, it can rotate to a horizontal position for easy access by pharmaceutical equipment. Simultaneously, the two adjacent end grooves 103 are opened in opposite directions, ensuring that the simultaneous removal of all placement boxes 1041 will not be affected. The outer wall of the limiting plate 1051... The limiting plate 1051 is in close contact with the inner wall of the inner cavity 102. A limiting groove 1052 is formed in the middle of the limiting plate 1051. A limiting shaft 1053 is fixedly installed at one end of the placement box 1041 near the limiting plate 1051. The limiting shaft 1053 is rotatably installed inside the limiting groove 1052. A snap-fit ​​groove 1054 is formed on the limiting shaft 1053. Two movable grooves 1055 are formed inside the limiting plate 1051. The two movable grooves 1055 are symmetrically arranged on the upper and lower sides of the limiting groove 1052. A connecting groove 1057 is provided between the movable groove 1055 and the limiting groove 1052. The inner diameter of the connecting groove 1057 is the same as the inner diameter of the locking groove 1054. A second locking groove 1056 is provided at the end of the movable groove 1055 away from the limiting groove 1052. The second locking groove 1056 extends to the end of the limiting plate 1051. The inner diameter of the second locking groove 1056 is the same as the inner diameter of the first locking groove 1047. A movable block 1058 is movably installed inside the movable groove 1055. The movable block 1058 is close to the limiting groove 1051. A snap-fit ​​rod 1059 is fixedly installed on one side of 052. One end of the movable block 1058 contacts the inner wall of the end of the movable groove 1055 away from the limiting groove 1052. One end of the snap-fit ​​rod 1059 passes through the connecting groove 1057 and contacts the outer wall of the limiting shaft 1053. A return spring 10510 is fixedly installed on the side of the movable block 1058 near the limiting groove 1052. One end of the return spring 10510 is fixedly connected to the inner wall of the end of the movable groove 1055 near the limiting groove 1052.

[0038] The positioning and fixing component 106 includes a double-sided snap-fit ​​component and a single-sided snap-fit ​​component. The double-sided snap-fit ​​component and the single-sided snap-fit ​​component on two adjacent boxes 101 are set in opposite positions. The two ends of the box 101 are respectively provided with double-sided snap-fit ​​component and single-sided snap-fit ​​component. When the equipment is unfolded, the double-sided snap-fit ​​component and the single-sided snap-fit ​​component of two adjacent boxes 101 are at the same end. The single-sided snap-fit ​​component is used to snap-fit ​​and fix the placement box 1041, and the double-sided snap-fit ​​component is used to snap-fit ​​two adjacent boxes 101 to ensure the assembly stability of multiple boxes 101 forming a stretcher.

[0039] The positioning and fixing component 106 includes a side inner groove 1061 formed inside the housing 101. Two side inner grooves 1061 are symmetrically arranged on the upper and lower sides of the inner cavity 102. Two rod grooves 1062 are symmetrically formed on both the upper and lower sides of the side inner groove 1061. The two rod grooves 1062 correspond to the first locking groove 1047 and the second locking groove 1056, respectively. An inner plate 1063 is slidably installed inside the side inner groove 1061. A locking block 1064 is installed on one side of the two side inner grooves 1061 that is close to each other. The locking block 1064 passes through the rod groove 1062 to the inner cavity 102. Inside the cavity 102, two locking blocks 1064 are respectively engaged in the first locking groove 1047 and the second locking groove 1056. When the placement box 1041 is located inside the cavity 102, the two locking blocks 1064 on the inner plate 1063 are engaged in the first locking groove 1047 and the second locking groove 1056 respectively, securing the placement box 1041. After the placement box 1041 is removed, the second locking groove 1056 on the limiting plate 1051 corresponds to the locking block 1064 near the end of the end groove 103, thus still enabling the limiting plate 1051 to be positioned. The placement box 1041 is fixed and limited. When the placement box 1041 is inside the internal cavity 102, the two locking blocks 1064 on the internal plate 1063 respectively engage with the first locking groove 1047 and the second locking groove 1056 to fix the placement box 1041. After the placement box 1041 is pulled out, the second locking groove 1056 on the limiting plate 1051 corresponds to the locking block 1064 near the end of the end groove 103, thus still fixing the limiting plate 1051 and limiting the placement box 1041. The double-sided locking components... A snap-fit ​​block 1065 is symmetrically installed on the side of the inner groove 1061 away from the inner cavity 102. A sliding groove 1066 is provided on the side of the inner groove 1061 away from the end groove 103. A connecting frame 1067 is installed on the side of the inner plate 1063 near the sliding groove 1066. A pin 1068 is installed on the connecting frame 1067. Two sets of positioning grooves 1069 are symmetrically arranged on the side of the inner groove 1061 away from the end groove 103. The two sets of positioning grooves 1069 correspond to the two pins 1068 respectively. The positioning grooves 1069 consist of three positioning grooves.

[0040] Two hinges 2 are symmetrically installed between two adjacent boxes 101. The hinge 2 between the first box 101 and the second box 101 is located at the bottom of the box 101, the hinge 2 between the second box 101 and the third box 101 is located at the top of the box 101, the hinge 2 between the third box 101 and the fourth box 101 is located at the bottom of the box 101, and so on. When retrieving medicines, each box 101 is folded up by the hinges 2 to reduce the size of the equipment and make it easier to pick up and use. When each box 101 is unfolded by the hinges 2, it can form a straight stretcher, which is convenient for emergency transport of patients and for emergency use. The top of the two boxes 101 at the ends is equipped with a retrieval component 3.

[0041] The retrieval component 3 includes a lifting frame 301 fixedly installed at the top of the two end boxes 101. Two limiting side plates 302 are symmetrically installed on the lifting frame 301. A U-shaped frame 303 is installed between the limiting side plates 302. The lifting frame 301 is located inside the U-shaped frame 303. A middle plate 304 is installed between the two U-shaped frames 303. A retrieval handle 305 is installed at the top of the middle plate 304. The boxes 101 are set in an even number, so that the lifting frames 301 are set at the top of the two end boxes 101. The two lifting frames 301 are engaged by the U-shaped frames 303 at both ends of the middle plate 304 for easy retrieval. When the box 101 is unfolded to form a stretcher, the two lifting frames 301 face away from each other on one side of the two end boxes 101. The lifting frame 301 enables the stretcher lifting operation, which is convenient to use.

[0042] Working principle: When picking up, the two U-shaped frames 303 are locked onto the two lifting frames 301, and the equipment can be picked up by the picking handle 305;

[0043] The system includes six boxes 101, each containing different emergency medical supplies and equipment. Each box 101 is labeled with the type of emergency medical supplies and equipment it contains. There can be four or six boxes 101, as long as the number of boxes 101 is even.

[0044] When the required medicine needs to be retrieved, in its original state, the pin 1068 on the connecting frame 1067 is engaged in the positioning groove in the middle of the positioning groove group 1069, so that the two locking blocks 1064 are respectively engaged in the first locking groove 1047 and the second locking groove 1056 to fix the placement box 1041. When it is taken out, the pin 1068 is pulled outward, and the two internal plates 1063 are pulled away from each other, so that the pin 1068 is engaged with the positioning groove at the outer end of the positioning groove group 1069, and the locking blocks 1064 are removed from the first locking groove 1047 and the second locking groove 1056.

[0045] Pull the placement box 1041 outwards until the limiting plate 1051 is limited by the end groove 103. Then rotate the placement box 1041 so that the cover 1044 on the placement box 1041 faces upwards. At this time, the snap-fit ​​groove 1054 on the limiting shaft 1053 is in a vertical state. Then pull the inner plate 1063 downwards so that the pin 1068 snaps into the positioning groove at the inner end of the positioning groove group 1069. At this time, the locking block 1064 near the end groove 103 is inserted. Insert it into the second slot 1056 and push the latching rod 1059 to move it into the latching slot 1054, thereby fixing the horizontal state of the placement box 1041. Then open the cover 1044 and take out the medicine equipment in the placement slot 1042. A latch 1046 is provided between the placement box 1041 and the cover 1044 to prevent the cover 1044 from opening directly when the placement box 1041 is in a vertical state, causing the medicine equipment to fall out.

[0046] When the placement box 1041 is horizontal, its width is less than the sum of the widths of the three boxes 101. The end slots 103 on two adjacent boxes 101 are opened in opposite directions, so that the placement boxes 1041 in the two adjacent boxes 101 can be pulled out from opposite directions, making it convenient to open all the placement boxes 1041 in each box 101 to retrieve the medicine equipment.

[0047] Because hinges 2 are installed between adjacent first aid kits 1, and the hinge 2 between the first kit 101 and the second kit 101 is located at the bottom of the kit 101, the hinge 2 between the second kit 101 and the third kit 101 is located at the top of the kit 101, the hinge 2 between the third kit 101 and the fourth kit 101 is located at the bottom of the kit 101, and so on, the size of the equipment is reduced when folded for easy access. When opened, the middle plate 304 is removed, and then each kit 101 is opened into a long plate via the hinges 2. Because double-sided and single-sided latching parts are respectively provided at both ends of the kit 101, when the equipment is folded, the double-sided latching parts of adjacent kits 101 are connected. The side-mounted and single-mounted latches are in opposite positions. When the equipment is opened, the double-mounted and single-mounted latches of two adjacent boxes 101 are at the same end. At this time, the two latching blocks 1064 on the single-mounted latch are respectively inserted into the first latching groove 1047 and the second latching groove 1056 to fix the placement box 1041. Meanwhile, the inner plate 1063 on the double-mounted latch is moved away from the placement box 1041, so that the two latching blocks 1065 are inserted into the rod groove 1062 on the adjacent side, thereby locking and fixing the two adjacent boxes 101. This makes the unfolded multiple boxes 101 fixed in a straight plate shape, forming a plate-shaped stretcher, and the stretcher can be lifted by two lifting frames 301.

[0048] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0049] Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A first aid kit, comprising six smaller first aid kits, characterized in that: The first aid kit includes a box body with an internal cavity inside. An end groove is provided on one side of the internal cavity. The end grooves of two adjacent boxes are opened in opposite directions. A medicine placement device is installed inside the internal cavity. Positioning and fixing devices are installed on the top and bottom of the box body. Two hinges are symmetrically installed between two adjacent boxes, and the top of the two end boxes are equipped with a retrieval component. The drug placement device includes a placement box movably installed inside the internal cavity. The outer wall of the placement box is tightly fitted against the inner wall of the end groove. A rotating fixing component is installed at the end of the placement box away from the end groove. The rotating fixing component includes a limiting plate disposed on the side of the placement box away from the end groove. The outer wall of the limiting plate is tightly fitted against the inner wall of the internal cavity. A limiting groove is formed in the middle of the limiting plate. A limiting shaft is fixedly installed at the end of the placement box near the limiting plate. The limiting shaft is rotatably installed inside the limiting groove and has a snap-fit ​​groove. A pull-out handle is installed at the end of the placement box near the end groove. First snap-fit ​​grooves are formed on both the upper and lower sides of the placement box near the end groove. Two symmetrical movable grooves are formed inside the limiting plate. The movable groove is located on the upper and lower sides of the limiting groove. A connecting groove is formed between the movable groove and the limiting groove. The inner diameter of the connecting groove is the same as the inner diameter of the snap-fit ​​groove. A second snap-fit ​​groove is formed at the end of the movable groove away from the limiting groove. The second snap-fit ​​groove extends to the end of the limiting plate. The inner diameter of the second snap-fit ​​groove is the same as the inner diameter of the first snap-fit ​​groove. A movable block is movably installed inside the movable groove. A snap-fit ​​rod is fixedly installed on the side of the movable block near the limiting groove. One end of the movable block contacts the inner wall of the end of the movable groove away from the limiting groove. One end of the snap-fit ​​rod passes through the connecting groove and contacts the outer wall of the limiting shaft. A return spring is fixedly installed on the side of the movable block near the limiting groove. One end of the return spring is fixedly connected to the inner wall of the end of the movable groove near the limiting groove.

2. The first aid kit according to claim 1, characterized in that: The placement box has a placement slot inside, a placement slot on one side of the placement box, an installation slot on one side of the placement box, a cover on one side of the installation slot, a rotating shaft installed at one end of the cover, the rotating shaft is rotatably connected to the placement box, and a buckle is installed between the placement box and the cover.

3. The first aid kit according to claim 1, characterized in that: The positioning and fixing components include double-sided snap-fit ​​components and single-sided snap-fit ​​components, wherein the double-sided snap-fit ​​components and single-sided snap-fit ​​components on two adjacent boxes are positioned opposite each other.

4. A first aid kit according to claim 1, characterized in that: The positioning and fixing component includes a side inner groove opened inside the box body. Two side inner grooves are symmetrically arranged on the upper and lower sides of the internal cavity. Two rod grooves are symmetrically opened on the upper and lower sides of the side inner grooves. The two rod grooves correspond to the first and second locking grooves respectively. An internal plate is slidably installed inside the side inner groove. A locking block is installed on the side of the two side inner grooves that are close to each other. The locking block passes through the rod groove to the inside of the internal cavity, and the two locking blocks are respectively locked into the first and second locking grooves. The locking block is symmetrically installed on the side inner groove of the double-sided locking component away from the internal cavity.

5. A first aid kit according to claim 4, characterized in that: A sliding groove is provided on the side of the inner groove away from the end groove. A connecting frame is installed on the side of the inner plate near the sliding groove. A pin is installed on the connecting frame. Two sets of positioning grooves are symmetrically arranged on the side of the inner groove away from the end groove. The two sets of positioning grooves correspond to two pins respectively. The positioning groove set consists of three positioning grooves.

6. A first aid kit according to claim 1, characterized in that: The retrieval assembly includes a lifting frame fixedly installed at the top of both end boxes. Two limiting side plates are symmetrically installed on the lifting frame. A U-shaped frame is installed between the limiting side plates. The lifting frame is located inside the U-shaped frame. A middle plate is installed between the two U-shaped frames. A retrieval handle is installed at the top of the middle plate.

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