Peripheral blood free nucleic acid blood collection tube storage device

Abstract

The application relates to the field of biological medicine, and discloses a peripheral blood free nucleic acid blood collection tube storage device, which comprises a rectangular box, a box cover is hingedly arranged on the top of the rectangular box, two T-shaped grooves are arranged on the top of the rectangular box, two arc-shaped rods are fixedly arranged on the bottom of the box cover, the two arc-shaped rods are matched with the two T-shaped grooves respectively, a T-shaped block extends to the outside of the T-shaped groove, and the device further comprises two fastening mechanisms, the fastening mechanism comprises a round rod fixedly arranged at the bottom of the T-shaped block, an air tank is fixedly arranged on the right inner wall of the rectangular box, the bottom end of the T-shaped block extends into the air tank, a strip-shaped piston is fixedly arranged at the bottom end of the T-shaped block, and the strip-shaped piston is slidably connected with the air tank. The device can fasten the plasma test tube while closing the box cover, can spray disinfectant to improve the safety of the device, and can effectively play the roles of shock absorption and reinforcement.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of biological medicine equipment, in particular to a peripheral blood free nucleic acid blood collection tube storage device. BACKGROUND

[0002] A plasma sample kit is used for storing a test tube containing a plasma sample. During transportation of the kit, the kit will inevitably shake, and the shaking will cause the test tube to shake, so that the white blood cells in the test tube are broken to release genomic DNA, which will affect the detection of free nucleic acid in peripheral blood. Moreover, the kit containing the test tube is easily contaminated by viruses and bacteria in the air, and the contamination of bacteria and viruses will affect the plasma sample in the test tube. SUMMARY

[0003] The application aims to provide a peripheral blood free nucleic acid blood collection tube storage device to solve the problems that the kit will inevitably shake during transportation of the kit, the shaking will cause the test tube to shake and be easily damaged, and the kit containing the test tube is easily contaminated by viruses and bacteria in the air, and the contamination of bacteria and viruses will affect the plasma sample in the test tube.

[0004] To solve the above technical problems, the application is implemented by the following technical scheme:

[0005] The application is a peripheral blood free nucleic acid blood collection tube storage device, which comprises a rectangular box, a box cover is hingedly installed on the top of the rectangular box, two T-shaped grooves are formed in the top of the rectangular box, two arc-shaped rods are fixedly installed on the bottom of the box cover, the two arc-shaped rods are respectively matched with the two T-shaped grooves, a T-shaped block extends to the outside of the T-shaped groove on the right side of the T-shaped block, and the peripheral blood free nucleic acid blood collection tube storage device further comprises:

[0006] Two fastening mechanisms, the fastening mechanism comprises a circular rod fixedly installed at the bottom of the T-shaped block, an air tank is fixedly installed on the right side inner wall of the rectangular box, the bottom end of the T-shaped block extends into the air tank, a strip-shaped piston is fixedly installed at the bottom end of the T-shaped block, the strip-shaped piston is in sliding connection with the air tank, and a gas conveying pipe is fixedly installed on the left side of the air tank.

[0007] Further, a filling mechanism is arranged above the rectangular box, the filling mechanism comprises a rectangular frame arranged on the top of the rectangular box, an air plate is arranged in the rectangular frame, a plurality of placing grooves are formed in the top of the air plate, and the two gas conveying pipes are extended into the rectangular frame and fixedly connected with the air plate at the end close to each other.

[0008] Further, the rectangular box is provided with two disinfection mechanisms, the disinfection mechanism comprises a liquid pushing assembly and a liquid spraying assembly, the liquid pushing assembly comprises an L-shaped round rod fixedly installed on the back of the corresponding T-shaped block, a circular cavity box is fixedly installed on the left inner wall of the rectangular box, the bottom end of the L-shaped round rod extends into the circular cavity box, a pushing piston is fixedly installed at the bottom end of the L-shaped round rod, the pushing piston is in sliding connection with the circular cavity box, a disinfection box is fixedly installed on the left inner wall of the rectangular box, and a liquid infusion tube is fixedly installed at the bottom of the disinfection box.

[0009] Further, the liquid spraying assembly comprises a liquid discharge pipe fixedly installed at the bottom of the circular cavity box, and a fixed plate is fixedly installed in the rectangular box, a spraying plate is fixedly installed on the right side of the fixed plate, and the end of the liquid discharge pipe is fixedly connected with the spraying plate.

[0010] Further, a reinforcing mechanism is arranged on the top inner wall of the box cover, a plurality of telescopic rods one are fixedly installed on the top inner wall of the box cover, a buffer plate is fixedly installed at the bottom end of the plurality of telescopic rods one, a spring one is wound around each of the plurality of telescopic rods one, the bottom end of each of the plurality of spring ones is fixedly connected with the buffer plate, the top end of each of the plurality of spring ones is fixedly connected with the box cover, and the buffer plate is matched with the rectangular frame.

[0011] Further, a damping mechanism is arranged on the rectangular box, the damping mechanism comprises a damping assembly, two limiting assemblies and two clamping assemblies, the damping assembly comprises a plurality of telescopic rods two fixedly installed on the inner wall of the bottom of the rectangular box, an installation plate is fixedly installed at the top of each of the plurality of telescopic rods two, a spring two is wound around each of the plurality of telescopic rods two, the top end of each of the plurality of spring twos is fixedly connected with the installation plate, and the bottom end of each of the plurality of spring twos is fixedly connected with the rectangular box.

[0012] Further, the limiting assembly comprises a strip-shaped sliding groove formed in the left inner wall of the rectangular box, an extension block is fixedly installed on the left side of the installation plate, the left end of the extension block extends into the liquid infusion tube, a sliding rod is fixedly installed in the strip-shaped sliding groove, and the sliding rod penetrates through the extension block and is in sliding connection with the extension block.

[0013] Further, the clamping mechanism comprises a limiting box fixedly installed on the right inner wall of the rectangular box, a fixed rod is fixedly installed on the top of the installation plate, the fixed rod penetrates through the limiting box and is in sliding connection with the limiting box, a rectangular rod is fixedly installed on the left side of the limiting box, a rectangular sleeve is slidably sleeved on the rectangular rod, a connecting rod is hingedly installed on the rectangular sleeve and the fixed rod, L-shaped connecting rods are fixedly installed on the front face and the back face of the rectangular sleeve, and clamping plates are fixedly installed on the left sides of the two L-shaped connecting rods.

[0014] The present application has the following advantages:

[0015] (1) The peripheral blood free nucleic acid blood collection tube preservation device, when the plasma test tube is placed in the placement groove and the box cover is covered, the arc-shaped rod at the bottom of the box cover is inserted into the T-shaped groove, the arc-shaped rod pushes the T-shaped block in the T-shaped groove to move downward, the T-shaped block drives the round rod to move downward, the round rod drives the strip-shaped piston to move downward in the gas tank, and the gas in the gas tank is pushed into the gas plate through the gas conveying pipe in the movement of the strip-shaped piston; when the gas in the gas plate is filled, the plasma test tube is clamped more tightly, and collision between the plasma test tubes is avoided in the movement process, so that the test tubes are prevented from being damaged, the protection of the test tubes is improved, a buffering and damping effect is achieved, and the transportation safety is effectively improved; after the box cover is opened, the gas in the gas plate is in a state of being relieved, and is returned to the gas tank and lifts the T-shaped block.

[0016] (2) The peripheral blood free nucleic acid blood collection tube preservation device, in the process of covering the box cover, the T-shaped block also drives the L-shaped round rod to move downward, the L-shaped round rod drives the push piston to move downward in the round cavity tank, and the disinfectant in the disinfection tank is squeezed into the round cavity tank along the liquid conveying pipe in the process of the push piston descending; the disinfectant is finally sprayed out from the holes on the spray plate through the liquid discharging pipe under the squeezing of the push piston; and the liquid medicine is uniformly sprayed on the surface of the gas plate under the simultaneous spraying of the two spray plates, so that the surface of the gas plate and the plasma test tubes is disinfected, bacteria and viruses are prevented from remaining on the surface of the gas plate and the plasma test tubes when the box cover is opened, the storage time of the device is effectively improved, and the disinfection performance is improved.

[0017] (3) The peripheral blood free nucleic acid blood collection tube preservation device, when the device is subjected to collision and bumping during transportation, the plurality of springs two play a damping role, the mounting plate moves up and down under the damping action in the process of bumping, the fixed rod moves downward in the process of the mounting plate descending, the rectangular sleeve moves left under the action of the fixed rod and the connecting rod, the two L-shaped connecting rods move left at the same time under the action of the rectangular sleeve, and the two clamping plates contact the rectangular frame at the same time under the action of the two clamping mechanisms; in the bumping case, the rectangular frame is clamped more tightly under the action of the two clamping mechanisms, the stability and safety of the device are improved, and the amplitude of shaking is reduced.

[0018] (4) The peripheral blood free nucleic acid blood collection tube preservation device, after the box cover is covered, the buffer plate enters the rectangular frame, the buffer plate extrudes and fixes the plasma test tubes in the placement groove, so that the plasma test tubes are kept on the same horizontal plane, and the spring one plays a buffering role under the action of the spring one, so that a collision buffering role is achieved, and a fastening role is also achieved on the plasma test tubes.

[0019] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the side part sectional structure of the present application;

[0023] Figure 3 It is a schematic diagram of the enlarged structure of A in the present application; Figure 2

[0024] Figure 4 It is a schematic diagram of the top view structure of the present application;

[0025] Figure 5 It is a schematic diagram of the enlarged structure of B in the present application; Figure 2

[0026] Figure 6 It is a schematic diagram of the internal structure of the present application;

[0027] Figure 7 It is a schematic diagram of the enlarged structure of C in the present application; Figure 4

[0028] Figure 8 It is a schematic diagram of the front sectional structure of the present application;

[0029] Figure 9 It is a schematic diagram of the enlarged structure of D in the present application. Figure 8

[0030] In the drawings, the component list represented by each reference sign is as follows:

[0031] ​​​​As shown in the figure, 1 is a rectangular box, 2 is a box cover, 3 is a T-shaped groove, 4 is an arc-shaped rod, 5 is a T-shaped block, 6 is a round rod, 7 is a gas tank, 8 is a strip-shaped piston, 9 is a gas conveying pipe, 10 is a rectangular frame, 11 is a gas plate, 12 is a placing groove, 13 is an L-shaped round rod, 14 is a round cavity box, 15 is a pushing piston, 16 is a disinfection box, 17 is a transfusion pipe, 18 is a drainage pipe, 19 is a fixed plate, 20 is a spraying plate, 21 is an extension rod, 22 is a buffer plate, 23 is a spring, 24 is an extension rod, 25 is a mounting plate, 26 is a spring, 27 is a strip-shaped sliding groove, 28 is an extension block, 29 is a sliding rod, 30 is a limiting box, 31 is a fixed rod, 32 is a rectangular rod, 33 is a rectangular sleeve, 34 is a connecting rod, 35 is an L-shaped connecting rod, and 36 is a clamping plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-9 As shown in the figure, the present application is a peripheral blood free nucleic acid blood collection tube preservation device, which comprises a rectangular box 1, a box cover 2 is hingedly installed on the top of the rectangular box 1, two T-shaped grooves 3 are formed in the top of the rectangular box 1, two arc-shaped rods 4 are fixedly installed on the bottom of the box cover 2, the two arc-shaped rods 4 are respectively matched with the two T-shaped grooves 3, and a T-shaped block 5 extends to the outside of the T-shaped groove 3 on the right side, and the device further comprises:

[0034] Two fastening mechanisms, the fastening mechanism comprises a round rod 6 fixedly installed at the bottom of the T-shaped block 5, a gas tank 7 is fixedly installed on the right side inner wall of the rectangular box 1, the bottom end of the T-shaped block 5 extends into the gas tank 7, a strip-shaped piston 8 is fixedly installed at the bottom end of the T-shaped block 5, the strip-shaped piston 8 is slidably connected with the gas tank 7, and the left side of the gas tank 7 is fixedly installed with a gas conveying pipe 9.

[0035] As Figure 4 shown, a filling mechanism is arranged above the rectangular box 1, the filling mechanism comprises a rectangular frame 10 arranged on the top of the rectangular box 1, a gas plate 11 is arranged in the rectangular frame 10, a plurality of placing grooves 12 are formed in the top of the gas plate 11, and the ends of the two gas conveying pipes 9 close to each other both extend into the rectangular frame 10 and are fixedly connected with the gas plate 11.

[0036] Through the setting of the filling mechanism, the gas in the gas tank 7 can be pushed into the gas plate 11 through the gas conveying pipe 9 after the box cover 2 is closed, and the gas in the gas plate 11 can make the plasma test tube clamping more tightly after being filled, thereby avoiding the collision between the plasma test tubes during the movement, so that the white blood cells in the test tubes are not broken to release genomic DNA to affect the detection of free nucleic acid in peripheral blood.

[0037] As shown in Figure 5 , the rectangular box 1 is provided with two disinfection mechanisms, and the disinfection mechanism comprises a liquid pushing assembly and a liquid spraying assembly. The liquid pushing assembly comprises an L-shaped round rod 13 fixedly installed on the back of the corresponding T-shaped block 5. A circular cavity box 14 is fixedly installed on the left inner wall of the rectangular box 1. The bottom end of the L-shaped round rod 13 extends into the circular cavity box 14. A pushing piston 15 is fixedly installed at the bottom end of the L-shaped round rod 13. The pushing piston 15 is in sliding connection with the circular cavity box 14. A disinfection box 16 is fixedly installed on the left inner wall of the rectangular box 1. A liquid conveying pipe 17 is fixedly installed at the bottom of the disinfection box 16. The distal end of the liquid conveying pipe 17 is fixedly connected with the circular cavity box 14.

[0038] Through the setting of the liquid pushing assembly, the L-shaped round rod 13 can be driven to move downward during the movement of the T-shaped block 5. The pushing piston 15 is driven by the L-shaped round rod 13 to move downward in the circular cavity box 14. The disinfectant in the disinfection box 16 is squeezed out through the liquid conveying pipe 17 and into the circular cavity box 14 during the descent of the pushing piston 15.

[0039] As shown in Figure 2 and Figure 5 , the liquid spraying assembly comprises a liquid discharging pipe 18 fixedly installed at the bottom of the circular cavity box 14. A fixed plate 19 is fixedly installed in the rectangular box 1. A spraying plate 20 is fixedly installed on the right side of the fixed plate 19. The distal end of the liquid discharging pipe 18 is fixedly connected with the spraying plate 20.

[0040] Through the setting of the liquid spraying assembly, the disinfectant can be sprayed out through the holes on the spraying plate 20 through the liquid discharging pipe 18 under the squeezing of the pushing piston 15, so as to disinfect the surfaces of the gas plate 11 and the plasma test tube.

[0041] As shown in Figure 2 , the top inner wall of the box cover 2 is provided with a reinforcing mechanism. A plurality of telescopic rods 21 are fixedly installed on the top inner wall of the box cover 2. A buffer plate 22 is fixedly installed at the bottom end of the plurality of telescopic rods 21. A plurality of springs 23 are respectively wound on the plurality of telescopic rods 21. The bottom ends of the plurality of springs 23 are fixedly connected with the buffer plate 22. The top ends of the plurality of springs 23 are fixedly connected with the box cover 2. The buffer plate 22 is matched with the rectangular frame 10.

[0042] Through the reinforcing mechanism, the buffer plate 22 can enter the rectangular frame 10 after the box cover 2 is covered, and the buffer plate 22 can extrude and fix the plasma test tube in the placing groove 12, thereby playing the collision buffering role and the fastening role on the plasma test tube.

[0043] As shown in Figure 6 The rectangular box 1 is provided with a damping mechanism, and the damping mechanism comprises a damping assembly, two limiting assemblies and two clamping assemblies.

[0044] Through the damping assembly, when the device is subjected to collision and bumping during transportation, the plurality of springs 26 can play a damping role to reduce the vibration amplitude.

[0045] As shown in Figure 9 The limiting assembly comprises a strip-shaped sliding groove 27 formed in the left inner wall of the rectangular box 1, and the left side of the mounting plate 25 is fixedly installed with an extension block 28.

[0046] Through the limiting assembly, the extension block 28 can be limited by the sliding rod 29 during movement, so that the extension block 28 moves more stably, and the stability of the device is improved.

[0047] As shown in Figure 7 The clamping mechanism comprises a limiting box 30 fixedly installed on the right inner wall of the rectangular box 1, and the top of the mounting plate 25 is fixedly installed with a fixed rod 31.

[0048] Through the setting clamping mechanism, the installation plate 25 can be brought down in the process of the fixed rod 31 to move down, the fixed rod 31 is brought to the rectangular sleeve 33 under the action of the connecting rod 34, the rectangular sleeve 33 will bring two L-shaped connecting rods 35 to move left simultaneously, two L-shaped connecting rods 35 will simultaneously bring two clamping plates 36 to contact to the rectangular frame 10, under the action of two sets of clamping mechanisms, the rectangular frame 10 is clamped more tightly in the case of jolt, improve the stability and safety of the device.

[0049] In use, after the plasma test tube is placed in the placing groove 12, the arc-shaped rod 4 at the bottom of the box cover 2 is inserted into the T-shaped groove 3 when the box cover 2 is covered, the arc-shaped rod 4 pushes the T-shaped block 5 in the T-shaped groove 3 to move down, the T-shaped block 5 drives the round rod 6 to move down, the round rod 6 drives the strip-shaped piston 8 to move down in the gas tank 7, in the process of moving of the strip-shaped piston 8, the gas in the gas tank 7 is pushed into the gas plate 11 through the gas conveying pipe 9, when the gas in the gas plate 11 is filled, the plasma test tube is clamped more tightly, and at the same time, collision between the plasma test tubes in the moving process is avoided to cause damage of the test tubes, the safety of transportation is effectively improved, after the box cover 2 is opened, the gas in the gas plate 11 is in a state of being relieved, and is returned to the gas tank 7 and lifts the T-shaped block 5; in the process of covering the box cover 2, the T-shaped block 5 also drives the L-shaped round rod 13 to move down simultaneously, the L-shaped round rod 13 drives the push piston 15 to move down in the round cavity tank 14, in the process of descending of the push piston 15, the disinfectant in the disinfection tank 16 is squeezed to flow into the round cavity tank 14 along the infusion pipe 17, under the squeezing of the push piston 15, the disinfectant is finally sprayed out from the hole of the spraying plate 20 through the drainage pipe 18, under the spraying of two spraying plates 20 simultaneously, the disinfectant is uniformly sprayed on the surface of the gas plate 11 to disinfect it, bacteria and viruses are avoided to remain on the surface of the gas plate 11 and the plasma test tube when the box cover 2 is opened, the storage time and the disinfecting performance of the device are effectively improved;

[0050] After the box cover 2 is covered, the buffer plate 22 will enter the placing groove 12, the buffer plate 22 will extrude and fix the blood plasma test tube in the placing groove 12, the blood plasma test tube is kept in the same horizontal plane, under the action of the spring 23, the buffer plate 22 will play the buffering role, not only the collision buffering role, but also the fastening role to the blood plasma test tube; when the device is transported and is subjected to the collision and bumping, the several springs 26 will play the damping role, the mounting plate 25 will move up and down under the damping role in the bumping, the fixing rod 31 will move downwards in the process that the mounting plate 25 descends, the fixing rod 31 will drive the rectangular sleeve 33 to move left under the action of the connecting rod 34, the rectangular sleeve 33 will drive the two L-shaped connecting rods 35 to move left simultaneously, the two L-shaped connecting rods 35 will drive the two clamping plates 36 to contact the rectangular frame 10 simultaneously, under the action of the two sets of clamping mechanisms, the rectangular frame 10 will be clamped more tightly in the bumping, the stability and the safety of the device are improved.

[0051] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments. Obviously, according to the content of the present application, many modifications and changes can be made. The present application is selected and described in detail, in order to better explain the principles and practical application of the present application, so that the skilled in the art can well understand and use the present application. The present application is limited by the claims and the whole scope and equivalents.

Claims

1. A peripheral blood free nucleic acid blood collection tube storage device, comprising a rectangular box (1), a box cover (2) is hingedly installed on the top of the rectangular box (1), two T-shaped grooves (3) are formed in the top of the rectangular box (1), two arc-shaped rods (4) are fixedly installed on the bottom of the box cover (2), the two arc-shaped rods (4) are respectively matched with the two T-shaped grooves (3), and a T-shaped block (5) extends to the outside of the T-shaped groove (3), characterized in that, Also include: Two fastening mechanism, the fastening mechanism includes fixedly installed in the bottom of T-shaped block (5) round bar (6), the right side of the rectangular box (1) is fixedly installed with air tank (7) on the inner wall, the bottom end of T-shaped block (5) extends to air tank (7), the bottom end of T-shaped block (5) is fixedly installed with strip-shaped piston (8), the strip-shaped piston (8) is slidably connected with air tank (7), the left side of air tank (7) is fixedly installed with gas pipe (9); Wherein, the top inner wall of the box cover (2) is provided with reinforcing mechanism, the top inner wall of the box cover (2) is fixedly installed with a plurality of telescopic rod one (21), the bottom end of a plurality of telescopic rod one (21) is fixedly installed with buffer plate (22), a plurality of telescopic rod one (21) is respectively wound with spring one (23), the bottom end of a plurality of spring one (23) is fixedly connected with buffer plate (22), The rectangular box (1) is provided with damping mechanism, the damping mechanism includes damping assembly, two limiting assemblies and two clamping assemblies, the damping assembly includes a plurality of telescopic rod two (24) fixedly installed on the inner wall of the bottom of the rectangular box (1), The limiting assembly includes a strip-shaped sliding slot (27) opened on the left inner wall of the rectangular box (1), the left side of the mounting plate (25) is fixedly installed with an extension block (28), the strip-shaped sliding slot (27) is fixedly installed with a sliding rod (29), the sliding rod (29) penetrates through the extension block (28) and is slidably connected with the extension block (28), The clamping assembly includes a limiting box (30) fixedly installed on the right inner wall of the rectangular box (1), the top of the mounting plate (25) is fixedly installed with a fixed rod (31), the fixed rod (31) penetrates through the limiting box (30) and is slidably connected with the limiting box (30), the left side of the limiting box (30) is fixedly installed with a rectangular rod (32), the rectangular rod (32) is slidably sleeved with a rectangular sleeve (33), the rectangular sleeve (33) and the fixed rod (31) are hingedly installed with a connecting rod (34), the front and back of the rectangular sleeve (33) are respectively fixedly installed with L-shaped connecting rod (35), the left side of two L-shaped connecting rod (35) is respectively fixedly installed with clamping plate (36).

2. The peripheral blood free nucleic acid blood collection tube preservative device of claim 1, wherein: The top of the rectangular box (1) is provided with filling mechanism, the filling mechanism includes a rectangular frame (10) arranged on the top of the rectangular box (1), the rectangular frame (10) is provided with a gas plate (11), a plurality of placing grooves (12) are formed in the top of the gas plate (11), the ends of two gas pipes (9) close to each other extend into the rectangular frame (10) and are fixedly connected with the gas plate (11).

3. The peripheral blood free nucleic acid blood collection tube preservative device of claim 2, wherein: Two disinfecting mechanisms are arranged in the rectangular box (1), the disinfecting mechanism comprises a liquid pushing assembly and a liquid spraying assembly, the liquid pushing assembly comprises an L-shaped round rod (13) fixedly installed on the back of a corresponding T-shaped block (5), a circular cavity box (14) is fixedly installed on the left inner wall of the rectangular box (1), the bottom end of the L-shaped round rod (13) extends into the circular cavity box (14), a pushing piston (15) is fixedly installed at the bottom end of the L-shaped round rod (13), the pushing piston (15) is in sliding connection with the circular cavity box (14), a disinfecting box (16) is fixedly installed on the left inner wall of the rectangular box (1), a liquid delivery pipe (17) is fixedly installed at the bottom of the disinfecting box (16), and the distal end of the liquid delivery pipe (17) is fixedly connected with the circular cavity box (14).

4. The peripheral blood free nucleic acid blood collection tube preservative device of claim 3, wherein: The liquid spraying assembly comprises a liquid discharging pipe (18) fixedly installed at the bottom of the circular cavity box (14), a fixed plate (19) is fixedly installed in the rectangular box (1), a spraying plate (20) is fixedly installed on the right side of the fixed plate (19), and the distal end of the liquid discharging pipe (18) is fixedly connected with the spraying plate (20).

5. The peripheral blood free nucleic acid blood collection tube preservative device of claim 2, wherein: The top ends of the plurality of spring ones (23) are fixedly connected with the box cover (2), and the buffer plate (22) is matched with the rectangular frame (10).

6. The peripheral blood free nucleic acid blood collection tube preservative device of claim 1, wherein: A spring two (26) is wound on each of the plurality of telescopic rods two (24), the top ends of the plurality of spring twos (26) are fixedly connected with the mounting plate (25), and the bottom ends of the plurality of spring twos (26) are fixedly connected with the rectangular box (1).

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