Extensible self-locking medical kit group

Abstract

The extensible self-locking medical kit set comprises a kit body, a control assembly, an unfolding assembly and a fixing assembly, the bottom end of the kit body is fixedly connected with a base, the top end of the kit body is fixedly connected with a cover plate, and one side of the cover plate is fixedly connected with a fixing plate. By arranging the control assembly, the opening and closing process of the medical kit set can be achieved through stretching and pressing operation, and the medical kit set is controlled to stretch out and draw back and be locked automatically during opening and closing; by arranging the unfolding assembly, the medical articles in the box set can be freely classified and stored, meanwhile, the medical articles can be automatically unfolded and folded along with opening and closing of the box set, and unfolding and folding both occur in the vertical direction; and by arranging the fixing assembly, locking work is automatically completed when the box set is closed, meanwhile, the interior of the box set is propped and extruded, and the unfolding assembly is automatically supported and fixed when the box set is opened.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an extendable self-locking medical box set. Background Art

[0002] Medical kits are generally a group of boxes or containers used to store and carry medical supplies. They usually include multiple medical kits or modular units, each of which may be specialized for a certain type of medical item. These boxes or units can be combined into a whole for rapid response and material management in hospitals, first aid, disaster relief, and other places.

[0003] After searching, the Chinese patent with publication number CN114176961B includes a base, four edge sides of the base are hinged with side panels, and the top of one side panel is hinged with a top panel; the top panel includes a top panel body, and two edge sides of one surface of the top panel body are respectively hinged with a support panel through hinges, and a pair of T-shaped slide rails are arranged on the surface of the top panel body between the two support panels, and the length direction of the T-shaped slide rails is the same as the length direction of the support panels; a pair of opening plates are arranged on the T-shaped slide rails for sliding, and stop protrusion structures are arranged at both ends of the T-shaped slide rails; when the support panels are flipped, the two ends of the opening plates are respectively against the opposite inner side walls of the two support panels. The present invention realizes that the top of the base is changed to an exposed state by unfolding the side panels and the top panel to the bottom of the base during use, so as to facilitate the direct removal of equipment, medicines, etc. placed inside the treatment box, and avoid the interference of the side panels on the placement and removal of equipment, medicines, etc.

[0004] However, the above patent does not have the function of automatic expansion. When in use, it is necessary to manually control the expansion and resetting of the side panels, and further flip the support rod to achieve the operation of taking and placing drugs and equipment. The steps are cumbersome and will further affect medical efficiency. At the same time, the expansion of the side panels has certain requirements for the surrounding environment. If the surrounding space is too narrow or obstructed, it is difficult to ensure the smooth expansion of the side panels; on the other hand, the length limit of the support rod causes the storage volume of each tray to be fixed and equal, while the space occupied by different medical devices in actual scenarios is not the same, which can easily cause a waste of effective space in the box. At the same time, some medical devices stored in the trays are prone to slide in the trays when transported with the box, and then hit the inner wall of the box, causing damage to the devices. Summary of the invention

[0005] The purpose of the present invention is to provide an extendable self-locking medical box set, which has the advantages of automatic unfolding and synchronous locking, and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an extendable self-locking medical box set, comprising a box body and a control component at the top of the box body, an unfolding component located in the middle of the box body, and a fixing component located at the bottom of the box body, wherein the bottom of the box body is fixedly connected to a base, the top of the box body is fixedly connected to a cover plate, and one side of the cover plate is fixedly connected to a fixing plate;

[0007] The unfolding assembly includes a multi-stage telescopic mechanism for realizing the unfolding and folding of the box group and an induction mechanism for freely classifying and storing medical articles and absorbing collisions. The multi-stage telescopic mechanism is located in the middle section of the box body and is transmission-connected to the control assembly. The induction mechanism is fixedly connected to the multi-stage telescopic mechanism.

[0008] The fixing assembly includes a self-locking mechanism for locking the box group when it is closed and a limiting mechanism for squeezing, positioning and supporting the induction mechanism. The limiting mechanism is transmission-connected to the multi-stage telescopic mechanism, and the self-locking mechanism is transmission-connected to the control assembly.

[0009] Preferably, the control component includes a T-shaped handle fixedly connected to the center of the upper surface of the cover plate, the T-shaped handle is vertically penetrated and slidably connected to a button located at the top of the T-shaped handle, the bottom end of the button is fixedly connected to a connecting rod and the connecting rod is located inside the T-shaped handle, the bottom end of the connecting rod is fixedly connected to a bevel gear and the bevel gear penetrates downward and is slidably connected to the inside of the cover plate, a reset spring sleeved on the outer contour of the connecting rod is fixedly connected between the button and the inner contour of the T-shaped handle, a central gear is transmission-connected to the outer contour of the bottom end of the bevel gear and the central gear is limitedly rotationally connected to the center of the cover plate, a plurality of surrounding gears are meshed and transmission-connected to the outer contour of the central gear and the plurality of surrounding gears are mirror-symmetrical along the length median line of the cover plate.

[0010] Preferably, the multi-stage telescopic mechanism includes a lifting roller that penetrates and is fixedly connected to the axis of the gear, the outer contour of the lifting roller is sleeved with a limiting sleeve 1, the outer contour of the limiting sleeve 1 is sleeved with a limiting sleeve 2, and the limiting sleeve 1 and the limiting sleeve 2 both penetrate and are slidably connected to the four sides of the inner contour of the box, the two sides of the limiting sleeve 1 near the bottom end are penetrated and limitedly rotated and connected with an expansion gear, and the limiting sleeve 1 and the lifting roller are connected to the limiting sleeve 2 through the expansion gear transmission, the two sides of the top end of the limiting sleeve 1 are limitedly slidably connected with extrusion rods, and the top end of the extrusion rod resists and squeezes the lifting roller, a compression spring is fixedly connected between the limiting sleeve 1 and the extrusion rod, a fixing ring is sleeved on the outer contour of the top end of the lifting roller, and the fixing ring is fixedly connected to the lower surface of the base, an extrusion groove is opened inside the fixing ring, and the size of the extrusion groove is adapted to the extrusion rod.

[0011] Preferably, the induction mechanism includes a plurality of storage frames fixedly connected to the outer contours of the lifting roller, the limit sleeve one and the limit sleeve two, and the plurality of storage frames are evenly spaced along the vertical height, a cross partition is clamped on the inner contour of the storage frame, and the cross partition is arranged as a comb tooth structure, and a compression pad is fixedly connected to the bottom end of the storage frame, and the compression pad extends into the interior of the next storage frame.

[0012] Preferably, the outer contour of the storage frame is covered with a protective layer of rubber material and the compression pad is also made of rubber material.

[0013] Preferably, the limiting mechanism includes an internal gear fixedly connected to the bottom end of one of the lifting rollers, a gear ring is meshed and transmission connected on the outer contour of the internal gear, and the gear ring is limited and rotatably connected to the inside of the base, a chain is meshed and transmission connected on the outer contour of the gear ring, the other end of the chain is transmission connected to a transmission wheel, and the transmission wheel is limited and rotatably connected to the center of the base, a cross cam is fixedly connected to the upper surface of the transmission wheel, a telescopic shaft is transmission connected around the outer contour of the cross cam, and the telescopic shaft and the base are limited and slidably connected, an end of the telescopic shaft away from the gear ring is fixedly connected to a supporting plate, and the supporting plate extends upward and supports around the storage frame, and a positioning spring is fixedly connected between the end of the supporting plate away from the telescopic shaft and the inner contour of the base.

[0014] Preferably, the self-locking mechanism includes a positioning wheel that is meshed and transmission-connected to the outer contour of the center gear and is located inside the cover plate and the fixed plate; a threaded shaft is fixedly connected to the axis of the lower surface of the positioning wheel; a sliding sleeve is threaded on the outer contour of the threaded shaft and the sliding sleeve and the fixed plate are limitedly slidably connected; a limiting frame is fixedly connected to both sides of the bottom end of the sliding sleeve; a plug is slidably connected to the inside of the limiting frame; an extrusion spring is fixedly connected between the plug and the inner contour of the limiting frame and the extrusion spring is located inside the limiting frame.

[0015] Preferably, the self-locking mechanism also includes a fixed seat fixedly connected to the outer contour of the middle section of the box body, the axis of the fixed seat is vertically penetrated and fixedly connected with a fixed shaft extending upward, the top of the fixed shaft is fixedly connected with a locking boss, the middle section of the fixed shaft is penetrated and slidably connected with an unlocking sleeve, and the unlocking sleeve naturally hangs on the upper surface of the fixed seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets a control component, and the opening and closing process of the medical box group can be realized by stretching and pressing down, and the box group is automatically extended and locked during opening and closing, which effectively saves the steps of manual operation and improves medical efficiency.

[0018] 2. The present invention provides an unfolding component, which can freely classify and store medical items in the box group, and can automatically unfold and fold as the box group opens and closes. The unfolding and folding both occur in the vertical position, effectively avoiding the problem of being unable to unfold smoothly due to too small surrounding space.

[0019] 3. The present invention sets a fixing component to automatically complete the locking work when the box group is closed, and at the same time, it supports and squeezes the inside of the box group to reduce the problem of damage to the medical supplies inside due to the shaking of the box group during transportation, and automatically supports and fixes the unfolding component when the box group is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the main structure of the present invention;

[0021] Figure 2 This is an exploded schematic diagram of the box structure of the present invention;

[0022] Figure 3 It is a cross-sectional view of the control assembly structure of the present invention;

[0023] Figure 4 This is an exploded schematic diagram of the multi-stage telescopic mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the inductive mechanism of the present invention;

[0025] Figure 6 It is an exploded schematic diagram of the limiting mechanism of the present invention;

[0026] Figure 7 This is an exploded schematic diagram of the self-locking mechanism of the present invention;

[0027] Figure 8 It is a cross-sectional view of the self-locking mechanism of the present invention;

[0028] Fig. 9 It is the overall workflow diagram of the present invention.

[0029] In the figure: 1. Box body; 11. Base; 12. Cover plate; 13. Fixed plate; 2. T-handle; 21. Button; 22. Connecting rod; 23. Bevel gear; 24. Return spring; 25. Center gear; 26. Surrounding gear; 3. Lifting roller; 31. Limiting sleeve 1; 32. Limiting sleeve 2; 33. Expanding gear; 34. Extrusion rod; 35. Compression spring; 36. Fixed ring; 37. Extrusion groove; 4. Storage frame ; 41. Cross partition; 42. Extrusion pad; 5. Internal gear; 51. Ring gear; 52. Chain; 53. Transmission wheel; 54. Cross cam; 55. Telescopic shaft; 56. Abutment plate; 57. Positioning spring; 6. Positioning wheel; 61. Threaded shaft; 62. Sliding sleeve; 63. Limiting frame; 64. Fixed seat; 65. Fixed shaft; 66. Locking boss; 67. Unlocking sleeve; 68. Plug; 69. Extrusion spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0031] See also Figures 1 to 9 The present invention provides a technical solution: an extendable self-locking medical box set, including a box body 1 and a control component at the top of the box body, an unfolding component located in the middle of the box body 1, and a fixing component located at the bottom of the box body 1, wherein the bottom of the box body 1 is fixedly connected to a base 11, the top of the box body 1 is fixedly connected to a cover plate 12, and one side of the cover plate 12 is fixedly connected to a fixing plate 13;

[0032] The unfolding assembly includes a multi-stage telescopic mechanism for realizing the unfolding and folding of the box group and an induction mechanism for freely classifying and storing medical items and absorbing collisions. The multi-stage telescopic mechanism is located in the middle section of the box body 1 and is transmission-connected to the control assembly. The induction mechanism is fixedly connected to the multi-stage telescopic mechanism;

[0033] The fixing assembly includes a self-locking mechanism for locking the box group when it is closed and a limiting mechanism for squeezing, positioning and supporting the induction mechanism. The limiting mechanism is transmission-connected to the multi-stage telescopic mechanism, and the self-locking mechanism is transmission-connected to the control assembly.

[0034] In this box set, the box body 1, the base 11 and the cover 12 constitute the main structure of the box set. The control component completes the opening and closing process of the box set by stretching and pressing down the cover 12. At the same time, the multi-stage telescopic mechanism works to complete the unfolding and folding operations of the induction mechanism. The induction mechanism can freely adjust its internal space allocation to meet the storage needs of different medical items.

[0035] Furthermore, the limiting mechanism works synchronously to support and fix the induction mechanism when the box group is unfolded to avoid accidental collapse of the box group during the medical process, and to support and squeeze the induction mechanism when the box group is closed to further reduce the collision impulse caused by shaking of medical items in the box group during transportation.

[0036] At the same time, the fixed plate 13 and the box body 1 provide limiting support for the self-locking mechanism, and the control component synchronously drives the self-locking mechanism, which automatically releases the locking state when the box group is unfolded and automatically locks when the box group is closed.

[0037] Embodiment 2:

[0038] See also Figure 3This embodiment further illustrates the following on the basis of the first embodiment:

[0039] The control component includes a T-shaped handle 2 fixedly connected to the center of the upper surface of the cover plate 12, the T-shaped handle 2 is vertically penetrated and slidably connected with a button 21 located at the top of the T-shaped handle 2, the bottom end of the button 21 is fixedly connected to a connecting rod 22 and the connecting rod 22 is located inside the T-shaped handle 2, the bottom end of the connecting rod 22 is fixedly connected to a bevel gear 23 and the bevel gear 23 penetrates downward and is slidably connected to the inside of the cover plate 12, a return spring 24 sleeved on the outer contour of the connecting rod 22 is fixedly connected between the button 21 and the inner contour of the T-shaped handle 2, a central gear 25 is transmission-connected to the outer contour of the bottom end of the bevel gear 23 and the central gear 25 is limitedly rotationally connected to the center of the cover plate 12, a plurality of surrounding gears 26 are meshed and transmission-connected to the outer contour of the central gear 25 and the plurality of surrounding gears 26 are mirror-symmetrical along the length midline of the cover plate 12.

[0040] The box group is initially in a closed state. When it is necessary to open the box group, the personnel holds the horizontal part of the T-handle 2 and presses the button 21 with the palm of their hand. At this time, the button 21 squeezes the connecting rod 22 and the bevel gear 23 to be pressed down synchronously, and the reset spring 24 is gradually compressed. The downward pressure of the bevel gear 23 further drives the central gear 25 and the surrounding gear 26 to rotate synchronously. At this time, the surrounding gear 26 controls the unlocking of the multi-stage telescopic mechanism and further transmits and controls the expansion of the limit mechanism. The central gear 25 synchronously controls the self-locking mechanism to complete the unlocking work; then the personnel keeps the button 21 pressed down and stretches the T-handle 2 and the cover plate 12 upward. At this time, the cover plate 12 drives the multi-stage telescopic mechanism and the induction mechanism to be expanded synchronously, thereby realizing the function of automatic expansion of the interior of the box group when it is opened; then, when it is stretched to an appropriate height, the grip of the T-handle 2 is released. At this time, the reset spring 24 drives the button 21, the connecting rod 22 and the bevel gear 23 to reset, and the multi-stage telescopic mechanism is synchronously locked to prevent the box group from collapsing.

[0041] Embodiment three:

[0042] See also Figure 4-5 This embodiment further illustrates the following on the basis of the second embodiment:

[0043] The multi-stage telescopic mechanism includes a lifting roller 3 that penetrates and is fixedly connected to the axis of the surrounding gear 26, a limiting sleeve 1 31 is sleeved on the outer contour of the lifting roller 3, a limiting sleeve 2 32 is sleeved on the outer contour of the limiting sleeve 1 31, and the limiting sleeve 1 31 and the limiting sleeve 2 32 are both penetrated and slidably connected to the four sides of the inner contour of the box body 1, the limiting sleeve 1 31 is penetrated on both sides near the bottom end and is connected with an expansion gear 33 for limited rotation, and the limiting sleeve 1 31 and the lifting roller 3 and the limiting sleeve 2 32 are connected by transmission through the expansion gear 33, the two sides of the top of the limiting sleeve 1 31 are limitedly slidably connected with an extrusion rod 34, and the top of the extrusion rod 34 resists and squeezes the lifting roller 3, a compression spring 35 is fixedly connected between the limiting sleeve 1 31 and the extrusion rod 34, a fixing ring 36 is sleeved on the outer contour of the top of the lifting roller 3, and the fixing ring 36 is fixedly connected to the lower surface of the base 11, and an extrusion groove 37 is opened inside the fixing ring 36, and the size of the extrusion groove 37 is adapted to the extrusion rod 34.

[0044] The induction mechanism includes a plurality of storage frames 4 fixedly connected to the outer contours of the lifting roller 3, the limiting sleeve 1 31 and the limiting sleeve 2 32, and the plurality of storage frames 4 are evenly spaced along the vertical height, a cross partition 41 is clamped on the inner contour of the storage frame 4, and the cross partition 41 is arranged as a comb tooth structure, and a compression pad 42 is fixedly connected to the bottom end of the storage frame 4, and the compression pad 42 extends into the interior of the next storage frame 4.

[0045] The outer contour of the storage frame 4 is covered with a protective layer of rubber material and the compression pad 42 is also made of rubber material.

[0046] It can be seen from Example 1 that the person presses the button 21 with the palm of his hand to complete the unlocking process of the multi-stage telescopic mechanism. When the button 21 is pressed down and drives the surrounding gear 26 to rotate, the lifting roller 3 rotates synchronously and further drives the limit sleeve 1 31 and the limit sleeve 2 32 to rotate, and the fixing ring 36 is fixedly connected to the base 11 and is in a fixed state, that is, at this time, relative rotation occurs between the limit sleeve 1 31 and the fixing ring 36.

[0047] Since the rotation of the limiting sleeve 31 synchronously drives the extrusion rod 34, and the extrusion rod 34 is located in the extrusion groove 37 and is supported and squeezed by the extrusion groove 37, that is, along with the relative rotation between the limiting sleeve 31 and the fixing ring 36, the support degree of the extrusion groove 37 on the extrusion rod 34 changes synchronously, and the support degree of the extrusion groove 37 on the extrusion rod 34 is initially set to the maximum state, that is, when the box group is closed, the extrusion groove 37 resists the extrusion rod 34 and causes the extrusion rod 34 to be clamped with the lifting roller 3. At this time, the multi-stage telescopic mechanism is in a locked state, and the compression spring 35 is in the maximum compression stroke.

[0048] As the surrounding gear 26 drives the lifting roller 3 and the limiting sleeve 31 to rotate, the degree of resistance of the extrusion groove 37 to the extrusion rod 34 gradually decreases. At this time, the extrusion rod 34 gradually extends outward under the rebound action of the compression spring 35 and releases the clamping of the lifting roller 3. The multi-stage telescopic mechanism is in an unlocked state, and the lifting roller 3 can be freely stretched along with the surrounding gear 26.

[0049] It should be noted that the storage depth of the box group is set to L, that is, the height of the box body 1 is L, and the effective stroke length of the unfolding gear 33 on the lifting roller 3 and the limiting sleeve 32 is 0.5L, that is, the maximum extension height of the limiting sleeve 32 is L, the maximum extension height of the limiting sleeve 31 is 1.5L, and the maximum extension height of the lifting roller 3 is 2L, thereby effectively realizing the synchronous multiple-stroke expansion operation of the induction mechanism and there is a maximum gap of 0.5L length between multiple storage frames 4 to facilitate personnel to carry out the operation of taking and placing medical items.

[0050] Furthermore, when placing medical supplies, since the cross partition 41 is a comb-tooth structure, the storage frame 4 can be split into two partitions with lengths equal to the length and width of the inner contour of the storage frame 4, and the position of the cross partition 41 in the compression pad 42 can be freely adjusted according to the space requirements for the medical supplies to be placed, thereby effectively limiting the travel of the medical supplies accompanying the shaking of the box group during transportation to reduce the collision effect; at the same time, when the box group is closed, the compression pad 42 extends into the interior of the next storage frame 4 and resists and squeezes the medical supplies inside it. The protective layer of the cross partition 41 and the rubber material of the compression pad 42 can further absorb the impulse of the medical supplies when colliding with the inside of the box group.

[0051] When stretched to a suitable height, the grip of the T-handle 2 is released, causing the reset spring 24 to drive the button 21, the connecting rod 22 and the bevel gear 23 to reset. At this time, the lifting roller 3, the limit sleeve 1 31 and the limit sleeve 2 32 are also reset along with the rotation of the surrounding gear 26. The degree of support of the extrusion groove 37 on the extrusion rod 34 reaches the maximum state again. At this time, the extrusion rod 34 realizes the clamping of the lifting roller 3 and completes the locking of the multi-stage telescopic mechanism.

[0052] Embodiment 4:

[0053] See also Figure 6-8 This embodiment further illustrates the following on the basis of the third embodiment:

[0054] The limiting mechanism includes an internal gear 5 fixedly connected to the bottom end of one of the lifting rollers 3, a gear ring 51 is meshed and transmission-connected on the outer contour of the internal gear 5, and the gear ring 51 is limitedly rotatably connected to the inside of the base 11, a chain 52 is meshed and transmission-connected on the outer contour of the gear ring 51, the other end of the chain 52 is transmission-connected to a transmission wheel 53, and the transmission wheel 53 is limitedly rotatably connected to the center of the base 11, a cross cam 54 is fixedly connected to the upper surface of the transmission wheel 53, a telescopic shaft 55 is transmission-connected around the outer contour of the cross cam 54, and the telescopic shaft 55 is limitedly slidably connected to the base 11, an end of the telescopic shaft 55 away from the gear ring 51 is fixedly connected to a supporting plate 56, and the supporting plate 56 extends upward and is supported around the storage frame 4, and a positioning spring 57 is fixedly connected between the end of the supporting plate 56 away from the telescopic shaft 55 and the inner contour of the base 11.

[0055] The self-locking mechanism includes a positioning wheel 6 that is meshed and transmission-connected to the outer contour of the central gear 25 and is located inside the cover plate 12 and the fixed plate 13. A threaded shaft 61 is fixedly connected to the axis of the lower surface of the positioning wheel 6. A sliding sleeve 62 is screwed on the outer contour of the threaded shaft 61, and the sliding sleeve 62 is limitedly slidably connected to the fixed plate 13. The two sides of the bottom end of the sliding sleeve 62 are fixedly connected to a limit frame 63. A plug 68 is slidably connected inside the limit frame 63. An extrusion spring 69 is fixedly connected between the plug 68 and the inner contour of the limit frame 63, and the extrusion spring 69 is located inside the limit frame 63.

[0056] The self-locking mechanism also includes a fixed seat 64 fixedly connected to the outer contour of the middle section of the box body 1, and the axis of the fixed seat 64 is vertically penetrated and fixedly connected with a fixed shaft 65 extending upward, and the top of the fixed shaft 65 is fixedly connected with a locking boss 66, and the middle section of the fixed shaft 65 is penetrated and slidably connected with an unlocking sleeve 67, and the unlocking sleeve 67 naturally hangs on the upper surface of the fixed seat 64.

[0057] It can be seen from Example 1 that when the button 21 is pressed down, the limiting mechanism is synchronously deployed. When the surrounding gear 26 drives the lifting roller 3 to rotate, the internal gear 5 rotates along with the lifting roller 3 and further drives the ring gear 51, the chain 52, the transmission wheel 53 and the cross cam 54 to move synchronously. The rotation of the cross cam 54 causes the telescopic shafts 55 around it to slide within the base 11 and drive the abutment plate 56 to move synchronously. At this time, the positioning spring 57 is gradually compressed and the abutment plate 56 releases the abutment and squeezing state of the storage frame 4.

[0058] Subsequently, as the T-shaped handle 2 drives the lifting roller 3 to stretch upward, the internal gear 5 moves upward synchronously and disengages from the meshing state with the ring gear 51. At this time, the positioning spring 57 rebounds and drives the abutment plate 56 and the telescopic shaft 55 to reset. The abutment plate 56 re-implements the abutment and squeezing of the storage frame 4, thereby realizing the clamping and supporting function of the induction mechanism when the box group is unfolded.

[0059] It should be noted that the abutment and compression of the storage frame 4 by the abutment plate 56 will cause a slight deformation of the surface of the storage frame 4, which will further cause the cross partition 41 to be clamped inside the storage frame 4. At this time, the clamping degree of the cross partition 41 in the storage frame 4 is further increased, thereby effectively resisting the impact of medical items in the storage frame 4 during collision.

[0060] On the other hand, when the box set is closed, the self-locking mechanism is in a locked state. At this time, the bolt 68 is against the outer contour of the middle section of the fixed shaft 65, and the locking boss 66 and the unlocking sleeve 67 are respectively located on the upper and lower sides of the bolt 68. Directly pulling up the T-shaped handle 2 will cause the bolt 68 to engage with the locking boss 66. At this time, the box set is in a locked state and cannot be opened.

[0061] When the button 21 is pressed down to cause the central gear 25 to rotate, the positioning wheel 6 drives the threaded shaft 61 to rotate synchronously. At this time, the sliding sleeve 62 cannot rotate and thus begins to extend downward, and the limit frame 63 and the plug 68 extend downward synchronously; further, the plug 68 contacts the top of the unlocking sleeve 67 and is squeezed by the unlocking sleeve 67 and begins to shrink toward the inside of the limit frame 63. At this time, the squeezing spring 69 is gradually compressed, and when the limit frame 63 moves down to the middle section of the unlocking sleeve 67, it reaches the maximum downward stroke. At this time, pulling up the T-shaped handle 2 will cause the plug 68 to drive the unlocking sleeve 67 to move upward synchronously.

[0062] Furthermore, when the unlocking sleeve 67 moves up to contact with the locking boss 66, it cannot move further. At this time, due to the guiding effect of the inclined surface of the unlocking sleeve 67 on the plug 68, the plug 68 can continue to move upward and pass through the locking boss 66, so that the self-locking mechanism is in an unlocked state at this time, and the box assembly can be opened normally.

[0063] It should be noted that when the T-shaped handle 2 is pulled up to an appropriate height and the grip on the T-shaped handle 2 is released, the center gear 25 drives the self-locking mechanism to reset. At this time, the sliding sleeve 62 shrinks back into the interior of the fixed plate 13, and the limit frame 63 and the plug 68 also complete the reset process, thereby ensuring that when the subsequent box group is closed, the plug 68 completes the engagement through the locking boss 66 but does not contact the unlocking sliding sleeve 67, thereby realizing the locking process of the self-locking mechanism.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extendable self-locking medical box assembly, comprising a box body (1) and a control assembly at the top of the box body, an unfolding assembly located in the middle of the box body (1) and a fixing assembly located at the bottom of the box body (1), characterized in that: The bottom end of the box body (1) is fixedly connected to a base (11), the top end of the box body (1) is fixedly connected to a cover plate (12), and one side of the cover plate (12) is fixedly connected to a fixing plate (13); The unfolding assembly comprises a multi-stage telescopic mechanism for realizing the unfolding and folding of the box group and an induction mechanism for freely classifying and storing medical articles and absorbing collisions. The multi-stage telescopic mechanism is located in the middle section of the box body (1) and is transmission-connected to the control assembly. The induction mechanism is fixedly connected to the multi-stage telescopic mechanism. The fixing assembly includes a self-locking mechanism for locking the box group when it is closed and a limiting mechanism for squeezing, positioning and supporting the induction mechanism. The limiting mechanism is transmission-connected to the multi-stage telescopic mechanism, and the self-locking mechanism is transmission-connected to the control assembly.

2. The extendable self-locking medical box set according to claim 1, characterized in that: The control assembly comprises a T-shaped handle (2) fixedly connected to the center of the upper surface of the cover plate (12); the T-shaped handle (2) is vertically penetrated and slidably connected to a button (21) located at the top of the T-shaped handle (2); the bottom end of the button (21) is fixedly connected to a connecting rod (22) and the connecting rod (22) is located inside the T-shaped handle (2); the bottom end of the connecting rod (22) is fixedly connected to a bevel gear (23) and the bevel gear (23) penetrates downward and is slidably connected to the inside of the cover plate (12); A return spring (24) sleeved on the outer contour of the connecting rod (22) is fixedly connected between the button (21) and the inner contour of the T-shaped handle (2); a central gear (25) is transmission-connected to the outer contour of the bottom end of the bevel gear (23), and the central gear (25) is rotationally connected to the center of the cover plate (12); a plurality of surrounding gears (26) are meshed and transmission-connected to the outer contour of the central gear (25), and the plurality of surrounding gears (26) are mirror-symmetrical along the length midline of the cover plate (12).

3. The extendable self-locking medical box set according to claim 1, characterized in that: The multi-stage telescopic mechanism comprises a lifting roller (3) which penetrates and is fixedly connected to the axis of the surrounding gear (26); a limiting sleeve (31) is sleeved on the outer contour of the lifting roller (3); a limiting sleeve (32) is sleeved on the outer contour of the limiting sleeve (31); the limiting sleeve (31) and the limiting sleeve (32) are both penetrated and slidably connected to the periphery of the inner contour of the box body (1); the two sides of the limiting sleeve (31) near the bottom are penetrated and limitedly rotatably connected to the expansion gear (33); and the limiting sleeve (31) and the lifting roller (3) and the limiting sleeve (32) are connected by a The expansion gear (33) is connected in transmission, the two sides of the top of the limit sleeve (31) are limitedly slidably connected with the extrusion rod (34), and the top of the extrusion rod (34) abuts and squeezes the lifting roller (3), a compression spring (35) is fixedly connected between the limit sleeve (31) and the extrusion rod (34), a fixing ring (36) is sleeved on the outer contour of the top of the lifting roller (3), and the fixing ring (36) is fixedly connected to the lower surface of the base (11), and an extrusion groove (37) is opened inside the fixing ring (36), and the size of the extrusion groove (37) is adapted to the extrusion rod (34).

4. The extendable self-locking medical box set according to claim 1, characterized in that: The induction mechanism comprises a plurality of storage frames (4) fixedly connected to the outer contours of the lifting roller (3), the first limiting sleeve (31) and the second limiting sleeve (32), and the plurality of storage frames (4) are evenly spaced along the vertical height; a cross partition (41) is clamped on the inner contour of the storage frame (4), and the cross partition (41) is arranged as a comb tooth structure; a compression pad (42) is fixedly connected to the bottom end of the storage frame (4), and the compression pad (42) extends into the interior of the next storage frame (4).

5. The extendable self-locking medical box set according to claim 4, characterized in that: The outer contour of the storage frame (4) is covered with a protective layer made of rubber material, and the compression pad (42) is also made of rubber material.

6. The extendable self-locking medical box set according to claim 1, characterized in that: The limiting mechanism comprises an internal gear (5) fixedly connected to the bottom end of one of the lifting rollers (3); a gear ring (51) is meshed and transmission-connected on the outer contour of the internal gear (5), and the gear ring (51) is limitedly rotatably connected to the inside of the base (11); a chain (52) is meshed and transmission-connected on the outer contour of the gear ring (51); the other end of the chain (52) is transmission-connected to a transmission wheel (53), and the transmission wheel (53) is limitedly rotatably connected to the center of the base (11); the upper end of the transmission wheel (53) A cross cam (54) is fixedly connected to the surface, and a telescopic shaft (55) is transmission-connected around the outer contour of the cross cam (54), and the telescopic shaft (55) is limitedly slidably connected to the base (11); an end of the telescopic shaft (55) away from the gear ring (51) is fixedly connected to a support plate (56), and the support plate (56) extends upward and supports around the storage frame (4); a positioning spring (57) is fixedly connected between the end of the support plate (56) away from the telescopic shaft (55) and the inner contour of the base (11).

7. The extendable self-locking medical box set according to claim 1, characterized in that: The self-locking mechanism comprises a positioning wheel (6) meshed with and transmission-connected to the outer contour of the central gear (25) and located inside the cover plate (12) and the fixed plate (13); a threaded shaft (61) is fixedly connected to the axis of the lower surface of the positioning wheel (6); a sliding sleeve (62) is threadedly connected to the outer contour of the threaded shaft (61), and the sliding sleeve (62) and the fixed plate (13) are limitedly slidably connected; both sides of the bottom end of the sliding sleeve (62) are fixedly connected to a limiting frame (63); a plug (68) is slidably connected inside the limiting frame (63); an extrusion spring (69) is fixedly connected between the plug (68) and the inner contour of the limiting frame (63), and the extrusion spring (69) is located inside the limiting frame (63).

8. The extendable self-locking medical box set according to claim 1, characterized in that: The self-locking mechanism further comprises a fixing seat (64) fixedly connected to the outer contour of the middle section of the box body (1); a fixing shaft (65) extending upward is vertically penetrated and fixedly connected to the axis of the fixing seat (64); a locking boss (66) is fixedly connected to the top of the fixing shaft (65); an unlocking sleeve (67) is penetrated and slidably connected to the middle section of the fixing shaft (65); and the unlocking sleeve (67) naturally hangs on the upper surface of the fixing seat (64).

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