Isolated heart storage and transfer device

Abstract

The isolated heart storage and transfer device comprises a base, moving wheels are arranged on the base, a protective frame is arranged above the base, buffer strips are fixedly connected to the periphery of the protective frame, fixing rods are fixedly connected between the protective frame and the base, and a transfer box is arranged on the inner side of the protective frame; a vertical buffer mechanism is arranged at the top of the base; a horizontal buffer mechanism is arranged in the middle of the vertical buffer mechanism; the horizontal buffering mechanism comprises a horizontal moving structure and a reset buffering structure. By arranging the vertical buffer mechanism, the heart in the transfer box can be prevented from being affected by impact from the bottom of the device; by arranging the horizontal buffer mechanism, the heart in the transfer box can be prevented from being affected by impact in the horizontal direction of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of heart transport devices, and in particular to an isolated heart storage and transport device. Background Art

[0002] Heart transplantation is the most effective method for treating end-stage heart disease, and the lack of transplant donors is a common problem faced by heart transplantation around the world. Every year, tens of thousands of patients lose their lives while waiting for heart transplantation. The reasons for the lack of donor hearts are: due to economic and cultural traditions, the number of organ donors is relatively small compared to the number of people waiting for organ transplantation. The number of donor hearts that meet clinical transplantation standards is limited, and the effective storage time of donor hearts is short. Increasing the number of donor hearts that meet transplantation standards has become an urgent need for heart transplant doctors and patients, and is also an important research direction in this field. After the heart is removed from the donor, it needs to be quickly transported to the operating room through a transport device.

[0003] The Chinese invention patent with publication number CN112471135B discloses a protective shell, a first cover and a base, wherein the bottom of the base is provided with universal wheels, the inner wall of the protective shell is provided with a temperature regulating pipe, a partition is provided inside the protective shell, a heart storage device is provided above the partition, and the heart storage device is fixedly connected to the partition through a fixing rod; a peristaltic pump, a heart perfusate storage device, a temperature changer, a membrane oxygenator and a heart perfusate filter are provided above the base, the heart storage device, the heart perfusate filter, the peristaltic pump, the heart perfusate storage device, the temperature changer and the membrane oxygenator are connected in sequence through a perfusate delivery pipe, and the heart perfusate filter is located on the bottom end surface of the partition; a buzzer, an operation panel and a control box are provided on the front end surface of the protective shell, and a second cover is provided at the lower part of the front end surface of the protective shell.

[0004] However, the above patent and the prior art have the following deficiencies: currently, the heart is fixed by setting a fixed structure inside the transfer box, and the heart is kept active by life-support equipment, but the above patent does not set an energy-absorbing mechanism on the periphery of the transfer box, which causes the device to generate large vibrations inside when it is hit from the side, which in turn causes damage to the heart that is transferred and stored inside. Summary of the invention

[0005] The present invention provides an isolated heart storage and transportation device, which aims to solve the problem mentioned in the above background technology that there is no energy absorption mechanism on the periphery of the transfer box, which causes the device to vibrate greatly when it is hit from the side, and further causes the heart to be damaged when it is transferred to the inside for storage. The specific technical solution is as follows: An ex vivo heart storage and transportation device comprises a base, movable wheels are arranged on the base, a protective frame is arranged above the base, a buffer strip is fixedly connected to the outer periphery of the protective frame, a fixing rod is fixedly connected between the protective frame and the base, and a transfer box is arranged on the inner side of the protective frame; a vertical buffer mechanism is arranged on the top of the base, and a horizontal buffer mechanism is arranged in the middle of the vertical buffer mechanism; the horizontal buffer mechanism comprises a horizontal moving structure and a resetting buffer structure.

[0006] Preferably, the vertical buffer mechanism includes a mounting frame, which is arranged in a V shape, a first sealing cylinder is provided at the bottom of the mounting frame, the bottom of the first sealing cylinder is fixedly connected to the base, a first push rod is provided through the top of the first sealing cylinder, the first push rod is slidably connected to the first sealing cylinder, the top of the first push rod is fixedly connected to the mounting frame, a first annular sealing plug is fixedly connected to the outer periphery of the bottom of the first push rod, two first through holes are provided through the surface of the first annular sealing plug, a first buffer spring is provided on the outer periphery of the first sealing cylinder sliding sleeve, the bottom of the first buffer spring is abutted against the base, the top of the first buffer spring is abutted against the mounting frame, and a first one-way connecting structure is provided at the bottom of the first push rod.

[0007] When the bottom of the device is impacted perpendicularly to the device, the base will instantly move toward the mounting frame, so that the base is close to the mounting frame. At this time, the first buffer spring between the base and the mounting frame will be compressed, so as to absorb the mechanical energy generated by the impact. After that, the first buffer spring will rebound and drive the mounting frame away from the base. In this process, the first buffer spring will release energy; When the base is close to the mounting frame, the first push rod will drive the first annular sealing plug to move downward in the first sealing cylinder, and the gas at the bottom of the first annular sealing plug will flow to the top of the first annular sealing plug through the two first through holes on the surface of the first annular sealing plug. The two first through holes have small areas, and the gas will rub against the two first through holes during this process, so that the first annular sealing plug will encounter greater resistance when moving downward. When the mounting frame is away from the base, the first push rod will drive the first annular sealing plug to move upward in the first sealing tube, and the gas on the top of the first annular sealing plug will flow to the bottom of the first annular sealing plug through the two first through holes on the surface of the first annular sealing plug. The areas of the two first through holes are small. During this process, the gas will rub against the two first through holes, and the second annular sealing plug will encounter greater resistance when moving upward.

[0008] Preferably, the first one-way connecting structure includes a first cavity, which is arranged at the bottom of the first support rod, and first through grooves are arranged on both sides of the first cavity. A first limiting ring is fixedly connected to the inner wall of the first cavity, and a first sealing plate is provided on the top of the first limiting ring. A first return spring is provided on the top of the first sealing plate, and the bottom of the first return spring is against the first sealing plate, and the top of the first return spring is against the inner wall of the first cavity.

[0009] By setting a first one-way connecting structure, when the base is close to the mounting frame, the first push rod will drive the first annular sealing plug to move downward in the first sealing cylinder, and a small part of the gas at the bottom of the first annular sealing plug will flow to the top of the first annular sealing plug through the two first through holes on the surface of the first annular sealing plug, while most of the gas will enter the first cavity through the opening at the bottom of the first cavity, and after the gas pushes open the first sealing plate in the first cavity, it can flow to the top of the first annular sealing plug through the first through grooves on both sides of the first cavity, and because the opening area at the bottom of the first cavity and the opening areas of the two first through grooves are large, the resistance to gas flow is small, and thus the first annular sealing plug will encounter less resistance when moving downward, so when the base is close to the mounting frame, the first buffer spring will be quickly compressed and quickly absorb the impact force in the vertical direction received by the device; By setting a first one-way connecting structure, when the mounting frame is away from the base, the first push rod will drive the first annular sealing plug to move upward in the first sealing cylinder. At this time, the first sealing plate in the first cavity is limited by the first limiting ring and cannot move. Therefore, the gas on the top of the first annular sealing plug can only flow to the bottom of the first annular sealing plug through the two first through holes on the surface of the first annular sealing plug, and the two first through holes have a small area. During this process, the gas will rub against the two first through holes, and then the second annular sealing plug will encounter greater resistance when moving upward, so that the energy of the first buffer spring during rebound can be absorbed in large quantities, and at the same time, the speed of the base approaching the mounting frame is slowed down, thereby preventing the mounting frame from oscillating back and forth due to the rebound of the first buffer spring, thereby driving the transfer box to oscillate longitudinally.

[0010] Preferably, the horizontal moving structure includes a first connecting rod, the side walls of the two first connecting rods are fixedly connected to the mounting frame, two first stabilizing rods are fixedly connected between the two first connecting rods, the outer circumferences of the two first stabilizing rods are slidably provided with a first sliding sleeve, and the tops of the two first sliding sleeves are fixedly connected to a second connecting rod; two second stabilizing rods are fixedly connected between the two second connecting rods, the outer circumferences of the two second stabilizing rods are slidably provided with a second sliding sleeve, a mounting rod is fixedly connected between the two second sliding sleeves, a mounting column is fixedly connected to the middle of the mounting rod, and the top of the mounting column is fixedly connected to the transfer box.

[0011] When the device is moving, if the protective frame on the periphery of the device is hit and stops moving, during this process, the transfer box will be subjected to inertia pointing in the direction of the collision. If the direction of the inertia is the same as the axial direction of the two first stabilizing bars, the transfer box will drive the two first sliding sleeves to slide on the surfaces of the two first stabilizing bars through the mounting column, the connecting plate, the two second sliding sleeves, the two sliding bars and the two second connecting bars in sequence; If the inertia direction is the same as the axis direction of the two first stabilizer bars, the transfer box will sequentially drive the two second sliding sleeves to slide on the surfaces of the two second stabilizer bars through the mounting column and the connecting plate; If the inertia direction of the transfer box is not the same as the axis direction of the two first stabilizing bars and the two second stabilizing bars, it will tilt and move through the above structure; Therefore, the above structure can limit the transfer box from moving in any direction on the same horizontal plane.

[0012] Preferably, the reset buffer structure includes a first universal ball and a second universal ball, the bottom of the first universal ball is movably connected to the base, the top of the second universal ball is movably connected to the mounting column, the top of the first universal ball is threadedly connected to a second sealing cylinder, and the tops of both sides of the second sealing cylinder are fixedly connected to first abutment plates; the bottom of the second universal ball is threadedly connected to an extension rod, both sides of the bottom of the extension rod are fixedly connected to extension pieces, the side walls of the two extension pieces are fixedly connected to the second abutment plates, and the center of the bottom of the extension rod is fixedly connected to a second abutment rod; the middle part of the second abutment rod passes through the second sealing cylinder, the second abutment rod is slidably connected to the second sealing cylinder, the outer periphery of the second abutment rod is fixedly connected to a second annular sealing plug, and the surface of the second annular sealing plug is penetrated by two second through holes; a second buffer spring is provided at the bottom of the extension rod, the second buffer spring is sleeved on the outer periphery of the two extension pieces, one end of the second buffer spring abuts against the two first abutment plates, and the other end of the second buffer spring abuts against the two second abutment plates; a second one-way connecting structure is provided inside the second abutment rod.

[0013] When the transfer box drives the second universal ball to move in any direction through the mounting column, the distance between the second universal ball and the first universal ball will become longer. During this process, the second universal ball will drive the two second abutment plates to approach the two first abutment plates on the outer periphery of the second sealing cylinder through the two extension pieces at the bottom of the extension rod. At this time, the two second abutment plates and the two first abutment plates will squeeze and compress the second buffer springs, so that the mechanical energy generated by the impact can be absorbed by the second buffer springs. After that, the second buffer springs will make the two first abutment plates and the two second abutment plates move away from each other. At the same time, the two first abutment rods will drive the second universal ball to approach the second universal ball through the two extension rods and the extension rod. During this process, the second universal ball will drive the transfer box to return to its original position through the mounting column, and the second buffer spring will release energy. When the second universal ball moves away from the first universal ball, the second universal ball will drive the second annular sealing plug to move upward in the second sealing tube through the second supporting rod at the bottom of the second extension rod, and the gas at the top of the second annular sealing plug will flow to the bottom of the second annular sealing plug through the two second through holes on the surface of the second annular sealing plug, and the two second through holes have a small area. During this process, the gas will rub against the two second through holes, and the second annular sealing plug will encounter greater resistance when moving upward; when the second universal ball approaches the first universal ball, the second universal ball will drive the second annular sealing plug to move downward in the second sealing tube through the second supporting rod at the bottom of the second extension rod, and the gas at the bottom of the second annular sealing plug will flow to the top of the second annular sealing plug through the two second through holes on the surface of the second annular sealing plug, and the two second through holes have a small area. During this process, the gas will rub against the two second through holes, and the second annular sealing plug will encounter greater resistance when moving downward.

[0014] Preferably, the second one-way connecting structure includes a second cavity, the second cavity is arranged inside the second support rod, third through grooves are opened at the bottom of both sides of the second cavity, fourth through grooves are opened at the top of both sides of the second cavity, a second limiting ring is fixedly connected to the middle part of the inner wall of the second cavity, a second sealing plate is provided at the bottom of the second limiting ring, a second return spring is provided at the bottom of the second sealing plate, the top of the second return spring is against the second sealing plate, and the bottom of the second return spring is against the inner wall of the second cavity.

[0015] By setting a second one-way connecting structure, when the second universal ball moves away from the first universal ball, the second universal ball will drive the second annular sealing plug to move upward in the second sealing cylinder through the second push rod at the bottom of the second extension rod, and a small part of the gas at the top of the second annular sealing plug will flow to the bottom of the second annular sealing plug through the two second through holes on the surface of the second annular sealing plug, while most of the gas will enter the second cavity through the two fourth through grooves and push open the second sealing plate and flow to the bottom of the second annular sealing plug through the two third through grooves. Because the inner diameter of the second cavity and the areas of the two third through grooves and the two second through grooves are large, the flow resistance of the gas is small, and thus the second annular sealing plug will encounter less resistance when moving upward. Therefore, when the second universal ball moves away from the first universal ball, the second buffer spring will be quickly compressed and quickly absorb the horizontal impact force on the device. When the second universal ball approaches the first universal ball, the second universal ball will drive the second annular sealing plug to move downward in the second sealing cylinder through the second support rod at the bottom of the second extension rod. At this time, the second sealing plate in the second cavity is limited by the second limiting ring and cannot move. Therefore, the gas at the bottom of the second annular sealing plug can only flow to the top of the second annular sealing plug through the two second through holes on the surface of the second annular sealing plug, and the area of ​​the two second through holes is small. During this process, the gas will rub against the two second through holes, and then the second annular sealing plug will encounter greater resistance when moving downward, so that a large amount of energy during the rebound of the second buffer spring is absorbed, and at the same time, the speed of resetting the shipping box is slowed down, thereby preventing the mounting frame from driving the transfer box to oscillate back and forth in the horizontal direction due to the rebound of the second buffer spring.

[0016] Preferably, the number of movable wheels is set to four, the number of fixed rods is set to multiple, the number of first sealing cylinders is set to multiple, the number of first connecting rods is set to two, and the buffer strip is made of rubber material.

[0017] Compared with the closest prior art, the technical solution provided by the present invention has the following beneficial effects: 1. By setting a vertical buffer mechanism, when the bottom of the device is impacted, the resistance is small when the base approaches the mounting seat, so the first buffer spring will be quickly compressed and quickly absorb the impact force in the vertical direction received by the device. When the first buffer spring rebounds and drives the base and the mounting frame away from each other, the resistance is large, so that a large amount of energy can be absorbed when the first buffer spring rebounds, and at the same time, the speed at which the base approaches the mounting frame is slowed down, thereby preventing the mounting frame from oscillating back and forth due to the rebound of the first buffer spring and then driving the transfer box to oscillate back and forth longitudinally, thereby preventing the heart inside the transfer box from being affected by the impact from the bottom of the device.

[0018] 2. By setting up a horizontal buffer mechanism, when the device is impacted in any horizontal direction and the transfer box moves horizontally, the second universal ball will move away from the first universal ball and the resistance is smaller when the second universal ball moves away from the first universal ball. Therefore, the second buffer spring will be quickly compressed and absorb the impact force in the horizontal direction received by the device. When the second buffer spring drives the second universal ball and the first universal ball to approach, the resistance is larger, so that a large amount of energy can be absorbed when the second buffer spring rebounds, and at the same time, the speed of the transfer box when it is reset is slowed down, thereby preventing the mounting frame from driving the transfer box to oscillate back and forth in the horizontal direction due to the rebound of the second buffer spring, thereby preventing the heart inside the transfer box from being affected by the horizontal impact of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the installation position of the vertical buffer mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the mounting frame of the present invention; Figure 4 It is a cross-sectional view of the installation of the first stop rod of the present invention; Figure 5 It is a cross-sectional view of the installation of the first annular sealing plug of the present invention; Figure 6 It is a schematic diagram of the horizontal movement structure of the present invention; Figure 7 It is a schematic diagram of the reset buffer structure of the present invention; Figure 8 It is an exploded view of the reset buffer structure of the present invention; Fig. 9 It is a cross-sectional view of the installation of the second stop rod of the present invention; Fig.10 It is a cross-sectional view of the installation of the second annular sealing plug of the present invention; Fig.11 This is an enlarged view of the structure of part A of the present invention.

[0020] Among them: 1. base; 11. moving wheel; 12. protection frame; 13. buffer strip; 14. fixing rod; 15. transfer box; 2. vertical buffer mechanism; 21. mounting frame; 22. first sealing cylinder; 23. first push rod; 24. first annular sealing plug; 25. first through hole; 26. first buffer spring; 27. first one-way connecting structure; 271. first cavity; 272. first through groove; 273. first limit ring; 274. first sealing plate; 275. first reset spring; 3. horizontal buffer mechanism; 31. horizontal moving structure; 311. first connecting rod; 312. first stabilizing rod; 313. first sliding sleeve; 314. second connecting rod; 315. second Stabilizing rod; 316, second sliding sleeve; 317, mounting rod; 318, mounting column; 32, reset buffer structure; 321, first universal ball; 322, second universal ball; 323, second sealing cylinder; 324, first abutment plate; 325, extension rod; 326, extension piece; 327, second abutment plate; 328, second abutment rod; 329, second annular sealing plug; 3210, second through hole; 3211, second buffer spring; 3212, second one-way connecting structure; 32121, second cavity; 32122, third through groove; 32123, fourth through groove; 32124, second limiting ring; 32125, second sealing plate; 32126, second reset spring. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-11 The present invention provides a technical solution: an isolated heart storage and transportation device, comprising a base 1, the base 1 is provided with moving wheels 11, the number of the moving wheels 11 is set to four, a protective frame 12 is provided above the base 1, a buffer strip 13 is fixedly connected to the outer periphery of the protective frame 12, the buffer strip 13 is made of rubber material, a fixing rod 14 is fixedly connected between the protective frame 12 and the base 1, the number of the fixing rods 14 is set to multiple, a transfer box 15 is provided on the inner side of the protective frame 12, a vertical buffer mechanism 2 is provided on the top of the base 1, the vertical buffer mechanism 2 is used to buffer and absorb the vertical impact force received by the transfer box 15; a horizontal buffer mechanism 3 is provided in the middle of the vertical buffer mechanism 2, the horizontal buffer mechanism 3 is used to buffer and absorb the horizontal impact received by the device.

[0023] The vertical buffer mechanism 2 includes a mounting frame 21, which is set to be V-shaped. A first sealing cylinder 22 is provided at the bottom of the mounting frame 21. The bottom of the first sealing cylinder 22 is fixedly connected to the base 1, and the number of the first sealing cylinders 22 is set to be multiple; a first push rod 23 is provided through the top of the first sealing cylinder 22, and the first push rod 23 is slidably connected to the first sealing cylinder 22. The top of the first push rod 23 is fixedly connected to the mounting frame 21, and a first annular sealing plug 24 is fixedly connected to the outer periphery of the bottom of the first push rod 23. Two first through holes 25 are provided on the surface of the first annular sealing plug 24; a first buffer spring 26 is provided on the outer periphery of the first sealing cylinder 22. The bottom of the first buffer spring 26 is against the base 1, and the top of the first buffer spring 26 is against the mounting frame 21; a first one-way connecting structure 27 is provided at the bottom of the first push rod 23.

[0024] Furthermore, the first one-way connecting structure 27 includes a first cavity 271, which is arranged at the bottom of the first supporting rod 23. First through grooves 272 are provided on both sides of the first cavity 271. A first limiting ring 273 is fixedly connected to the inner wall of the first cavity 271. A first sealing plate 274 is provided on the top of the first limiting ring 273. A first return spring 275 is provided on the top of the first sealing plate 274. The bottom of the first return spring 275 is against the first sealing plate 274, and the top of the first return spring 275 is against the inner wall of the first cavity 271.

[0025] The horizontal buffer mechanism 3 includes a horizontal moving structure 31 and a reset buffer structure 32. The horizontal moving structure 31 is used to support the transfer box 15 and enable the transfer box 15 to move in any direction on the same horizontal plane. The reset buffer structure 32 can reset the transfer box 15 after it has been moved.

[0026] The horizontal moving structure 31 includes a first connecting rod 311, the number of which is set to two, the side walls of the two first connecting rods 311 are fixedly connected to the installation home, two first stabilizing rods 312 are fixedly connected between the two first connecting rods 311, the outer peripheries of the two first stabilizing rods 312 are slidably sleeved with first sliding sleeves 313, and the tops of the two first sliding sleeves 313 are fixedly connected with second connecting rods 314; two second stabilizing rods 315 are fixedly connected between the two second connecting rods 314, the outer peripheries of the two second stabilizing rods 315 are slidably sleeved with second sliding sleeves 316, a mounting rod 317 is fixedly connected between the two second sliding sleeves 316, a mounting column 318 is fixedly connected to the middle of the mounting rod 317, and the top of the mounting column 318 is fixedly connected to the transfer box 15.

[0027] The reset buffer structure 32 includes a first universal ball 321 and a second universal ball 322. The bottom of the first universal ball 321 is movably connected to the base 1, and the top of the second universal ball 322 is movably connected to the mounting column 318. The top of the first universal ball 321 is threadedly connected to the second sealing cylinder 323, and the tops of both sides of the second sealing cylinder 323 are fixedly connected to the first abutment plates 324; the bottom of the second universal ball 322 is threadedly connected to an extension rod 325, and both sides of the bottom of the extension rod 325 are fixedly connected to extension pieces 326, and the side walls of the two extension pieces 326 are fixedly connected to second abutment plates 327, and the center of the bottom of the extension rod 325 is fixedly connected to a second abutment rod 328; the middle part of the second abutment rod 328 passes through the second sealing cylinder 323, and the second abutment rod 328 is slidably connected to the second sealing cylinder 323. The outer periphery of the second abutment rod 328 is fixedly connected to a second annular sealing plug 329, and the second annular sealing plug 329 Two second through holes 3210 are set through the surface; a second buffer spring 3211 is set at the bottom of the extension rod 325, and the second buffer spring 3211 is sleeved on the outer periphery of the two extension members 326. One end of the second buffer spring 3211 is against the two first abutment plates 324, and the other end of the second buffer spring 3211 is against the two second abutment plates 327; a second one-way connecting structure 3212 is set inside the second abutment rod 328.

[0028] Furthermore, the second one-way connecting structure 3212 includes a second cavity 32121, which is arranged inside the second supporting rod 328, third through grooves 32122 are opened at the bottoms of both sides of the second cavity 32121, fourth through grooves 32123 are opened at the tops of both sides of the second cavity 32121, a second limiting ring 32124 is fixedly connected to the middle part of the inner wall of the second cavity 32121, a second sealing plate 32125 is provided at the bottom of the second limiting ring 32124, a second return spring 32126 is provided at the bottom of the second sealing plate 32125, the top of the second return spring 32126 is against the second sealing plate 32125, and the bottom of the second return spring 32126 is against the inner wall of the second cavity 32121.

[0029] The working principle and use process of the present invention are as follows: the internal structure of the transfer box 15 is the same as that of the comparative patent, which can transport nutrients to the stored heart to maintain its activity and keep the heart in a constant temperature state.

[0030] The working principle and use process of the vertical buffer mechanism are as follows: When the bottom of the device is impacted perpendicularly to the device, the base 1 will instantly move toward the mounting frame 21, so that the base 1 is close to the mounting frame 21. At this time, the first buffer spring 26 between the base 1 and the mounting frame will be compressed, thereby absorbing the mechanical energy generated by the impact.

[0031] When the base 1 is close to the mounting frame 21, the first push rod 23 will drive the first annular sealing plug 24 to move downward in the first sealing tube 22, and a small part of the gas at the bottom of the first annular sealing plug 24 will flow to the top of the first annular sealing plug 24 through the two first through holes 25 on the surface of the first annular sealing plug 24, while most of the gas will enter the first cavity 271 through the opening at the bottom of the first cavity 271, and the gas can push open the first sealing plate 274 in the first cavity 271 and then flow to the top of the first annular sealing plug 24 through the first through grooves 272 on both sides of the first cavity 271, and because the opening area at the bottom of the first cavity 271 and the opening areas of the two first through grooves 272 are large, the resistance to gas flow is small, and thus the first annular sealing plug 24 will encounter less resistance when moving downward, so when the base 1 is close to the mounting frame 21, the first buffer spring 26 will be quickly compressed and quickly absorb the impact force in the vertical direction received by the device; then the first buffer spring 26 It will rebound and drive the mounting frame 21 away from the base 1, and the first buffer spring 26 will release energy during this process; When the mounting frame 21 is away from the base 1, the first push rod 23 will drive the first annular sealing plug 24 to move upward in the first sealing tube 22. At this time, the first sealing plate 274 in the first cavity 271 is limited by the first limiting ring 273 and cannot move. Therefore, the gas on the top of the first annular sealing plug 24 can only flow to the bottom of the first annular sealing plug 24 through the two first through holes 25 on the surface of the first annular sealing plug 24. The two first through holes 25 have a small area. During this process, the gas will rub against the two first through holes 25, and then the second annular sealing plug 329 will encounter greater resistance when moving upward, so that the energy of the first buffer spring 26 during rebound can be absorbed in large quantities, and at the same time, the speed of the base 1 approaching the mounting frame 21 is slowed down, thereby preventing the mounting frame 21 from reciprocating due to the rebound of the first buffer spring 26 and driving the transfer box 15 to reciprocate longitudinally.

[0032] The working principle and use process of the horizontal buffer mechanism are as follows: When the device is moving, if the protective frame 12 on the periphery of the device is hit and stops moving, during this process, the transfer box 15 will be subject to inertia pointing in the direction of the collision. If the direction of the inertia is the same as the axial direction of the two first stabilizers 312, the transfer box 15 will drive the two first slide sleeves 313 to slide on the surfaces of the two first stabilizers 312 through the mounting column 318, the connecting plate, the two second slide sleeves 316, the two slide rods and the two second connecting rods 314 in sequence; If the inertia direction is the same as the axial direction of the two first stabilizing rods 312 , the transfer box 15 will drive the two second sliding sleeves 316 and the surfaces of the two second stabilizing rods 315 to slide in sequence through the mounting column 318 and the connecting plate.

[0033] If the inertia direction of the transfer box 15 is not the same as the axial direction of the two first stabilizing bars 312 and the two second stabilizing bars 315, it will tilt and move through the above structure.

[0034] When the transfer box 15 drives the second universal ball 322 to move in any direction through the mounting column 318, the distance between the second universal ball 322 and the first universal ball 321 will become longer. During this process, the second universal ball 322 will drive the two second abutment plates 327 to approach the two first abutment plates 324 on the outer periphery of the second sealing cylinder 323 through the two extension pieces 326 at the bottom of the extension rod 325. At this time, the two second abutment plates 327 and the two first abutment plates 324 will squeeze and compress the second buffer spring 3211, so that the mechanical energy generated by the impact can be absorbed by the second buffer spring 3211.

[0035] When the second universal ball 322 moves away from the first universal ball 321, the second universal ball 322 will drive the second annular sealing plug 329 to move upward in the second sealing cylinder 323 through the second push rod 328 at the bottom of the second extension rod 325, and a small part of the gas at the top of the second annular sealing plug 329 will flow to the bottom of the second annular sealing plug 329 through the two second through holes 3210 on the surface of the second annular sealing plug 329, while most of the gas will enter the second cavity 32121 through the two fourth through grooves 32123 and push open the second sealing plate 32125 and flow to the bottom of the second annular sealing plug 329 through the two third through grooves 32122. Because the inner diameter of the second cavity 32121 and the areas of the two third through grooves 32122 and the two second through grooves are all large, the flow resistance of the gas is small, and thus the second annular sealing plug 329 will encounter less resistance when moving upward, so When moving away from the first universal ball 321 , the second buffer spring 3211 will be quickly compressed and quickly absorb the horizontal impact force on the device.

[0036] Afterwards, the second buffer spring 3211 causes the two first abutment plates 324 and the two second abutment plates 327 to move away from each other. At the same time, the two first abutment rods 23 drive the second universal balls 322 to move closer to each other through the two extension rods 325 and the extension rods 325. During this process, the second universal balls 322 drive the transfer box 15 to return to its original position through the mounting column 318, and the second buffer spring 3211 releases energy.

[0037] When the second universal ball 322 approaches the first universal ball 321, the second universal ball 322 will drive the second annular sealing plug 329 to move downward in the second sealing cylinder 323 through the second push rod 328 at the bottom of the second extension rod 325. At this time, the second sealing plate 32125 in the second cavity 32121 is limited by the second limiting ring 32124 and cannot move. Therefore, the gas at the bottom of the second annular sealing plug 329 can only flow to the top of the second annular sealing plug 329 through the two second through holes 3210 on the surface of the second annular sealing plug 329. The two second through holes 3210 have a small area. During this process, the gas will rub against the two second through holes 3210, and then the second annular sealing plug 329 will encounter greater resistance when moving downward, so that a large amount of energy of the second buffer spring 3211 is absorbed when it rebounds, and at the same time, the speed of resetting the shipping box is slowed down, thereby preventing the mounting frame 21 from driving the transfer box 15 due to the rebound of the second buffer spring 3211. Oscillate back and forth in the horizontal direction.

[0038] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art can still modify or make equivalent substitutions to the specific implementations of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention.

Claims

1. An isolated heart storage and transportation device, comprising a base, a movable wheel is arranged on the base, a protective frame is arranged above the base, and a buffer strip is fixedly connected to the outer periphery of the protective frame, characterized in that: A fixing rod is fixedly connected between the protection frame and the base, and a transfer box is provided inside the protection frame; a vertical buffer mechanism is provided on the top of the base, and a horizontal buffer mechanism is provided in the middle of the vertical buffer mechanism; the horizontal buffer mechanism includes a horizontal moving structure and a reset buffer structure.

2. The isolated heart storage and transportation device according to claim 1, characterized in that: The vertical buffer mechanism includes a mounting frame, which is arranged in a V shape. A first sealing cylinder is provided at the bottom of the mounting frame. The bottom of the first sealing cylinder is fixedly connected to the base. A first push rod is provided through the top of the first sealing cylinder. The first push rod is slidably connected to the first sealing cylinder. The top of the first push rod is fixedly connected to the mounting frame. A first annular sealing plug is fixedly connected to the outer periphery of the bottom of the first push rod. Two first through holes are provided on the surface of the first annular sealing plug. A first buffer spring is provided on the outer periphery of the first sealing cylinder. The bottom of the first buffer spring is abutted against the base. The top of the first buffer spring is abutted against the mounting frame. A first one-way connecting structure is provided at the bottom of the first push rod.

3. The isolated heart storage and transportation device according to claim 2, characterized in that: The first one-way connecting structure includes a first cavity, which is arranged at the bottom of the first supporting rod, and first through grooves are arranged on both sides of the first cavity. A first limiting ring is fixedly connected to the inner wall of the first cavity, and a first sealing plate is provided on the top of the first limiting ring. A first return spring is provided on the top of the first sealing plate, and the bottom of the first return spring is against the first sealing plate, and the top of the first return spring is against the inner wall of the first cavity.

4. The isolated heart storage and transportation device according to claim 1, characterized in that: The horizontal movement structure includes a first connecting rod, two side walls of the first connecting rods are fixedly connected to the mounting frame, two first stabilizing rods are fixedly connected between the two first connecting rods, the outer peripheries of the two first stabilizing rods are slidably provided with a first sliding sleeve, and the tops of the two first sliding sleeves are fixedly connected to a second connecting rod; two second stabilizing rods are fixedly connected between the two second connecting rods, the outer peripheries of the two second stabilizing rods are slidably provided with a second sliding sleeve, a mounting rod is fixedly connected between the two second sliding sleeves, a mounting column is fixedly connected to the middle of the mounting rod, and the top of the mounting column is fixedly connected to the transfer box.

5. The isolated heart storage and transportation device according to claim 1, characterized in that: The reset buffer structure includes a first universal ball and a second universal ball. The bottom of the first universal ball is movably connected to the base, and the top of the second universal ball is movably connected to the mounting column. The top of the first universal ball is threadedly connected to a second sealing cylinder, and the tops of both sides of the second sealing cylinder are fixedly connected to first abutment plates; the bottom of the second universal ball is threadedly connected to an extension rod, both sides of the bottom of the extension rod are fixedly connected to extension parts, the side walls of the two extension parts are fixedly connected to second abutment plates, and the center of the bottom of the extension rod is fixedly connected to a second abutment rod; the middle part of the second abutment rod passes through the second sealing cylinder, the second abutment rod is slidably connected to the second sealing cylinder, the outer periphery of the second abutment rod is fixedly connected to a second annular sealing plug, and the surface of the second annular sealing plug is penetrated by two second through holes; a second buffer spring is provided at the bottom of the extension rod, and the second buffer spring is sleeved on the outer periphery of the two extension parts, one end of the second buffer spring abuts against the two first abutment plates, and the other end of the second buffer spring abuts against the two second abutment plates; a second one-way connecting structure is provided inside the second abutment rod.

6. The isolated heart storage and transportation device according to claim 5, characterized in that: The second one-way connecting structure includes a second cavity, which is arranged inside the second supporting rod, third through grooves are opened at the bottom of both sides of the second cavity, fourth through grooves are opened at the top of both sides of the second cavity, a second limiting ring is fixedly connected to the middle of the inner wall of the second cavity, a second sealing plate is provided at the bottom of the second limiting ring, a second return spring is provided at the bottom of the second sealing plate, the top of the second return spring is against the second sealing plate, and the bottom of the second return spring is against the inner wall of the second cavity.

7. The isolated heart storage and transportation device according to claim 1, characterized in that: The number of the moving wheels is set to four, the number of the fixing rods is set to multiple, the number of the first sealing cylinders is set to multiple, the number of the first connecting rods is set to two, and the buffer strip is made of rubber material.

Images