Pediatric blood drawing device

Abstract

The invention relates to the technical field of medical instruments, in particular to a pediatric hemospast which comprises a base, an equipment frame is fixedly connected to the base, adjusting rings are rotatably connected to the inner wall of the equipment frame in a symmetrical structure, an adjusting frame is fixedly connected to the adjusting rings, and a fixing sleeve is arranged on the adjusting frame in a sliding fit mode. A tourniquet is clamped between the two fixing sleeves, a transmission mechanism is rotationally connected to the inner wall of the base, an air compression plate is arranged on the inner wall of the base in a sliding fit mode, a placing sleeve is fixedly connected to the base, two adjusting rings rotating in opposite directions are arranged, the tourniquet clamped by the fixing sleeves can be driven to be bound, and meanwhile under the effect of an arc-shaped rack, the tourniquet can be placed in the placing sleeve. The fixing sleeve can be moved, so that the two ends of the tourniquet are bundled in a crossed mode, manual bundling is replaced, the bundling stability and effect are improved, the situation that local parts are too tight or too loose possibly occurring in traditional manual bundling is avoided, and the bundling reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a pediatric blood-drawing device. Background Technology

[0002] A phlebotomy kit is a medical device used to collect blood samples from the human body (usually from veins). It is widely used in clinical diagnosis, blood tests, blood donation, and other applications. The design of a phlebotomy kit can vary depending on its intended use, target population (adults or children), and the method of blood collection.

[0003] The prior art publication CN213282941U provides a pediatric blood-drawing device. By setting up an adjustment device including a first connecting block, a first rotating shaft, a fixing screw, a bearing seat, a bearing, a rotating screw and a screw groove, and a support device including a guide frame, a second connecting block, a second rotating shaft, a support rod and a moving block, the device achieves both adjustment and fixation of the mounting plate, making the mounting plate and display screen more stable. The device has a simple structure, is easy to operate, and is highly practical.

[0004] Current technology requires medical staff to manually apply a tourniquet to the upper part of the patient's arm during blood draws from the antecubital vein in children. Manually applying the tourniquet requires additional time and effort, increasing the workload of medical personnel. Especially in emergency situations or when multiple blood draws need to be completed quickly, manual application can lead to delays and affect blood draw efficiency.

[0005] In summary, the existing technology lacks a technique for automatically applying a tourniquet when drawing blood from the antecubital vein in children. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a pediatric blood-drawing device.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a pediatric blood-drawing device, comprising a base, an equipment frame fixedly connected to the base, an adjusting ring rotatably connected to the inner wall of the equipment frame in a symmetrical structure, an adjusting frame fixedly connected to the adjusting ring, a fixing sleeve slidably fitted to the adjusting frame, a pressure band clamped between the two fixing sleeves, a transmission mechanism rotatably connected to the inner wall of the base, an air pressure plate slidably fitted to the inner wall of the base, and a placement sleeve fixedly connected to the base.

[0008] Preferably, the bottom inner wall of the base is provided with an air storage cavity, and both sides of the top surface of the base are provided with multiple placement holes in a linear structure.

[0009] Preferably, the device frame top two sides are symmetrically connected with a hanging rod, the hanging rod is symmetrically provided with two limiting rods below, one end of the limiting rod is fixedly connected with the device frame, a plurality of disposable blood taking needle hoses are placed on the hanging rod, two limiting grooves are symmetrically arranged on the inner wall of the device frame, two arc-shaped racks are fixedly connected to the inner wall of the device frame in a central symmetric structure, a motor is fixedly connected to the inner wall of the top end of the device frame, and a driving wheel is fixedly connected to the output end of the motor.

[0010] Preferably, the adjusting ring is rotatably connected with the inner wall of the limiting groove, an annular gear is fixedly connected to one side of the adjusting ring, and the annular gear is in meshing transmission with the driving wheel.

[0011] Preferably, a threaded rod is rotatably connected to the adjusting frame, a transmission wheel is fixedly connected to one end of the threaded rod, and the transmission wheel is in meshing transmission with the arc-shaped rack.

[0012] Preferably, a sliding block is fixedly connected to the top end of the fixing sleeve, the sliding block is threadedly connected with the threaded rod, an adjusting rod is threadedly connected to one side of the fixing sleeve, a clamping plate is rotatably connected to the inner end of the adjusting rod, the clamping plate is slidably connected with the inner wall of the fixing sleeve, and a knob is fixedly connected to the outer end of the adjusting rod.

[0013] Preferably, the transmission mechanism comprises a universal joint, the universal joint is rotatably connected with the base, a driven wheel is fixedly connected to one end of the universal joint, the driven wheel is in meshing transmission with the annular gear, a worm is fixedly connected to the other end of the universal joint, the other end of the worm is rotatably connected with the inner wall of the base, a worm wheel is in meshing transmission with one side of the worm, the worm wheel is rotatably connected with the inner wall of the base, a rotating rod is fixedly connected to the lower side of the worm wheel, and an extrusion wheel is rotatably connected to the other end of the rotating rod.

[0014] Preferably, the outer wall of the pressing plate is slidably connected with the inner wall of the gas storage cavity, a guide rod is fixedly connected to one side of the pressing plate, the guide rod is slidably connected with the inner wall of the gas storage cavity, a contact plate is fixedly connected to the outer end of the guide rod, the outer wall of one side of the contact plate is slidably connected with the outer wall of the extrusion wheel, a spring is fixedly connected to the other side of the contact plate, and the other end of the spring is fixedly connected with the inner wall of the base.

[0015] Preferably, a rubber sleeve is fixedly connected to the inner wall of the placement sleeve, and an air guide tube is fixedly connected through the inner wall of the bottom end of the placement sleeve. The other end of the air guide tube communicates with the inner wall of the air storage chamber. Multiple movable rods are slidably connected through a ring structure on one side of the placement sleeve. A tension spring is fixedly connected to the inner end of each movable rod, and the other end of the tension spring is fixedly connected to the inner wall of the placement sleeve. An I-shaped frame is fixedly connected between the outer ends of the multiple movable rods, and multiple ultraviolet disinfection lamps are fixedly connected to the inner end of the I-shaped frame in a ring structure.

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

[0017] 1. By setting two adjusting rings that rotate in opposite directions, the pressure band clamped by the fixed sleeve can be tied. At the same time, under the action of the arc-shaped rack, the fixed sleeve can be moved, so that the two ends of the pressure band can be cross-tied, replacing manual tying. This improves the stability and effectiveness of the tying. Cross-tiing helps to better control blood flow, ensure that the blood vessels are fully filled, and make it easier for medical staff to locate blood vessels for blood draw. At the same time, it can make the pressure band apply pressure evenly, avoiding the situation of local overtightness or looseness that may occur with traditional manual tying, thus improving the reliability of the tying.

[0018] 2. By setting a rubber sleeve inside the placement sleeve, the air pressure plate can be moved and inflated into the placement sleeve while the pressure band is being applied. This further pressurizes the blood vessel, increases the expansion effect of the blood vessel, helps maintain the dilated state of the blood vessel, and makes the blood more full and obvious, enhancing the visibility of the elbow vein. This provides better blood drawing results and increases the blood drawing speed compared to traditional methods, thereby reducing pain for children.

[0019] 3. By installing an ultraviolet disinfection lamp inside the placement sleeve, the rubber sleeve is ensured to undergo strict disinfection before each use, reducing the risk of cross-infection and ensuring the hygiene and safety of medical operations. At the same time, by opening placement holes on the base, it is convenient to place vacuum negative pressure blood collection tubes, reducing the risk of blood collection tube breakage due to accidental placement or movement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a pediatric blood-drawing device according to the present invention;

[0021] Figure 2 This is a partial cross-sectional view of the overall structure of a pediatric blood-drawing device according to the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of the base structure of a pediatric blood-drawing device according to the present invention;

[0023] Figure 4It is a partial cross-sectional view of the device rack structure of the pediatric blood extractor of the application;

[0024] Figure 5 It is a schematic view of the adjusting ring and other structures of the pediatric blood extractor of the application;

[0025] Figure 6 It is an expanded schematic view of the fixing sleeve and other structures of the pediatric blood extractor of the application;

[0026] Figure 7 It is a schematic view of the transmission structure and the air pressing plate structure of the pediatric blood extractor of the application;

[0027] Figure 8 It is a partial cross-sectional view of the placing sleeve structure of the pediatric blood extractor of the application.

[0028] In the figure, 1 is the base, 2 is the device rack, 3 is the adjusting ring, 4 is the adjusting rack, 5 is the fixing sleeve, 6 is the pressure band, 7 is the transmission mechanism, 8 is the air pressing plate, 9 is the placing sleeve, 101 is the gas storage cavity, 102 is the placing hole, 201 is the hanging rod, 202 is the limiting rod, 203 is the disposable blood extraction needle hose, 204 is the limiting groove, 205 is the arc-shaped rack, 206 is the motor, 207 is the driving wheel, 301 is the ring-shaped rack, 401 is the threaded rod, 402 is the transmission wheel, 501 is the sliding block, 502 is the adjusting rod, 503 is the clamping plate, 504 is the knob, 701 is the universal joint, 702 is the driven wheel, 703 is the worm, 704 is the worm wheel, 705 is the rotating rod, 706 is the extrusion wheel, 801 is the guide rod, 802 is the contact plate, 803 is the spring, 901 is the rubber sleeve, 902 is the air guide pipe, 903 is the movable rod, 904 is the tension spring, 905 is the I-shaped frame, and 906 is the ultraviolet disinfection lamp. DETAILED DESCRIPTION

[0029] The following description is used to disclose the application so that those skilled in the art can implement the application. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0030] As Figures 1-8 shown in the application, the pediatric blood extractor comprises a base 1, a device rack 2 fixedly connected on the base 1, an adjusting ring 3 rotationally connected on the inner wall of the device rack 2 in a symmetrical structure, an adjusting rack 4 fixedly connected on the adjusting ring 3, a fixing sleeve 5 slidingly matched on the adjusting rack 4, a pressure band 6 clamped between the two fixing sleeves 5, a transmission mechanism 7 rotationally connected on the inner wall of the base 1, an air pressing plate 8 slidingly matched on the inner wall of the base 1, and a placing sleeve 9 fixedly connected on the base 1.

[0031] As Figure 3As shown, the inner wall of the bottom end of the base 1 is provided with a gas storage cavity 101, and the top surface of the base 1 is provided with a plurality of placement holes 102 in a linear structure on both sides.

[0032] As shown in the figure, Figure 4 As shown, the top end of the equipment rack 2 is fixedly connected with a hanging rod 201 in a symmetrical structure, and two limiting rods 202 are arranged below the hanging rod 201 in a symmetrical structure. One end of the limiting rod 202 is fixedly connected with the equipment rack 2, a plurality of disposable blood drawing needle hoses 203 are placed on the hanging rod 201, two limiting grooves 204 are arranged on the inner wall of the equipment rack 2 in a symmetrical structure, and two arc-shaped racks 205 are fixedly connected to the inner wall of the equipment rack 2 in a central symmetrical structure. A motor 206 is fixedly connected to the inner wall of the top end of the equipment rack 2, and a driving wheel 207 is fixedly connected to the output end of the motor 206. The driving wheel 207 connected with the motor 206 is driven to rotate, so that the driving wheel 207 can drive the adjustment ring 3 connected with the two sides of the annular rack 301 to rotate.

[0033] As shown in the figure, Figure 5 As shown, the adjustment ring 3 is rotatably connected to the inner wall of the limiting groove 204, and the annular rack 301 is fixedly connected to one side of the adjustment ring 3. The annular rack 301 is in meshing transmission with the driving wheel 207.

[0034] As shown in the figure, Figure 5 As shown, a threaded rod 401 is rotatably connected to the adjustment frame 4, one end of the threaded rod 401 is fixedly connected with a transmission wheel 402, and the transmission wheel 402 is in meshing transmission with the arc-shaped rack 205. When the transmission wheel 402 is in meshing transmission with the arc-shaped rack 205, the threaded rod 401 connected with the transmission wheel 402 is driven to rotate, so that the threaded rod 401 drives the sliding block 501 connected with the fixing sleeve 5 to move, so that the fixing sleeve 5 drives the clamped pressure pulse belt 6 to be arranged in a cross structure, and at this time, when the pressure pulse belt 6 is moved and tightened at both ends, it is bound at the upper end of the arm.

[0035] As shown in the figure, Figure 6 As shown, the top end of the fixing sleeve 5 is fixedly connected with a sliding block 501, the sliding block 501 is in threaded connection with the threaded rod 401, one side of the fixing sleeve 5 is threadedly connected with an adjusting rod 502, the adjusting rod 502 is rotatably connected with a clamping plate 503 at the inner end, the clamping plate 503 is in sliding fit with the inner wall of the fixing sleeve 5 on the upper and lower sides, and the adjusting rod 502 is fixedly connected with a knob 504 at the outer end. The clamping plate 503 facilitates replacement of the pressure pulse belt 6.

[0036] As shown in the figure, Figure 7As shown, the transmission mechanism 7 includes a universal joint 701 rotatably connected with the base 1, one end of the universal joint 701 is fixedly connected with a driven wheel 702, the driven wheel 702 is in meshing transmission with the annular rack 301, the other end of the universal joint 701 is fixedly connected with a worm 703, the other end of the worm 703 is rotatably connected with the inner wall of the base 1, the worm 703 is in meshing transmission with a worm gear 704 on one side, the worm gear 704 is rotatably connected with the inner wall of the base 1, the worm gear 704 is fixedly connected with a rotating rod 705 below, the other end of the rotating rod 705 is rotatably connected with a squeezing wheel 706. The annular rack 301 drives the universal joint 701 connected with the driven wheel 702 to rotate, so that the universal joint 701 can drive the connected worm 703 to rotate, so that the worm 703 drives the rotating rod 705 connected with the worm gear 704 to rotate, so that the rotating rod 705 contacts and extrudes the contact plate 802 through the squeezing wheel 706.

[0037] As shown in Figure 7 The outer wall of the air pressing plate 8 is slidably connected with the inner wall of the air storage cavity 101, one side of the air pressing plate 8 is fixedly connected with a guide rod 801, the guide rod 801 is slidably connected with the inner wall of the air storage cavity 101, the outer end of the guide rod 801 is fixedly connected with a contact plate 802, one side of the contact plate 802 is slidably connected with the outer wall of the squeezing wheel 706, the other side of the contact plate 802 is fixedly connected with a spring 803, and the other end of the spring 803 is fixedly connected with the inner wall of the base 1. The spring 803 realizes the automatic reset of the air pressing plate 8. The contact plate 802 can drive the air pressing plate 8 connected with the guide rod 801 to move, so that the air in the air storage cavity 101 is injected into the placing sleeve 9 through the air guide pipe 902, so that the rubber sleeve 901 in the placing sleeve 9 is inflated and pressed on the front end of the arm.

[0038] As shown in Figure 8 The inner wall of the placing sleeve 9 is fixedly connected with the rubber sleeve 901, the bottom end of the inner wall of the placing sleeve 9 is fixedly connected with the air guide pipe 902, the other end of the air guide pipe 902 is in communication with the inner wall of the air storage cavity 101, one side of the placing sleeve 9 is slidably connected with a plurality of movable rods 903 in an annular structure, the inner end of each movable rod 903 is fixedly connected with a tension spring 904, the other end of each tension spring 904 is fixedly connected with the inner wall of the placing sleeve 9, the outer ends of the movable rods 903 are fixedly connected with an I-shaped frame 905, and the inner end of the I-shaped frame 905 is fixedly connected with a plurality of ultraviolet disinfection lamps 906 in an annular structure. The tension spring 904 realizes the automatic reset of the I-shaped frame 905.

[0039] By setting two opposite direction rotating adjusting rings 3, the fixed sleeve 5 can drive the compression band 6 to be bundled, and under the action of the arc-shaped rack 205, the fixed sleeve 5 can be moved to make the two ends of the compression band 6 cross and be bundled, replacing manual bundling, thereby improving the stability and effect of bundling, and the cross bundling helps to better control the blood flow, ensures that the blood vessel is fully filled, and facilitates the medical staff to easily locate the blood vessel for blood drawing, and the compression band 6 can uniformly exert pressure, avoiding the local over-tightening or over-loosening that may occur in traditional manual bundling, and improving the reliability of bundling.

[0040] Working principle: when the child's elbow vein needs to be drawn, first, the two ends of the compression band 6 are respectively placed in the fixed sleeve 5, and the adjusting rod 502 connected with the knob 504 is rotated to make the adjusting rod 502 drive the clamping plate 503 to move and clamp and fix the two ends of the compression band 6.

[0041] Then the arm is inserted into the placement sleeve 9 through the device frame 2, at this time the hand pushes away the I-shaped frame 905, then the motor 206 drives the connected driving wheel 207 to rotate, so that the driving wheel 207 drives the adjusting ring 3 on both sides to rotate, at this time the adjusting ring 3 drives the two ends of the compression band 6 to move, then when the transmission wheel 402 meshes with the arc-shaped rack 205, it drives the connected threaded rod 401 to rotate, so that the threaded rod 401 drives the sliding block 501 connected with the fixed sleeve 5 to move, so that the fixed sleeve 5 drives the clamped compression band 6 to be arranged in a cross structure, at this time when the two ends of the compression band 6 move and tighten, they are bundled on the upper end of the arm;

[0042] At the same time, when the adjusting ring 3 rotates, the ring-shaped rack 301 drives the universal joint 701 connected with the driven wheel 702 to rotate, so that the universal joint 701 drives the connected worm 703 to rotate, so that the worm 703 drives the connected rotating rod 705 to rotate, so that the rotating rod 705 contacts and extrudes the contact plate 802 through the extrusion wheel 706, so that the contact plate 802 drives the guide rod 801 connected with the air pressing plate 8 to move, so that the air in the air storage cavity 101 is injected into the placement sleeve 9 through the air guide pipe 902, so that the rubber sleeve 901 in the placement sleeve 9 is inflated and pressed on the front end of the arm, extruding the blood vessels at the front end of the arm, so that the blood is concentrated to one side of the compression band 6, so that the elbow vein is swollen, facilitating the medical staff to determine the position of the blood vessel, then the disposable blood drawing needle hose 203 is removed, the protective sleeve at both ends of the disposable blood drawing needle hose 203 is removed, one end is inserted into the vacuum negative pressure blood collection tube, and the other end is held to insert the needle into the blood vessel for blood drawing.

[0043] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other present or future devices perform the same function under a different name. It must be noted that, as used in the specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a plurality of such components. In this specification and in the claims, the term "when" should be understood to mean "whereupon" or "upon" when used in contexts describing the sequential order of events, and "whenever" when used in contexts describing the sequential order of events or circumstances. The terms "comprises" and / or "comprising," or "includes" and / or "including" when used in this specification and in the following claims are used open- ended, meaning that they include the elements that follow, but not to the exclusion of other elements. The terms "coupled" and "coupling" mean to be directly or indirectly connected physically or logically, or to be directly or indirectly in communication, whether electrically, mechanically, optically, or otherwise.

[0044] The foregoing description of the preferred embodiment of the application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of this disclosure. It is intended that the scope of the application be limited not with this detailed description, but rather by the claims appended hereto.

Claims

1. A pediatric blood extractor comprising a base (1), characterized in that: The base (1) is fixedly connected with a device rack (2), the inner wall of the device rack (2) is rotationally connected with an adjusting ring (3) in a symmetrical structure, the adjusting ring (3) is fixedly connected with an adjusting rack (4), the adjusting rack (4) is slidably connected with a fixing sleeve (5), a tourniquet (6) is clamped between the two fixing sleeves (5), the base (1) is rotationally connected with a transmission mechanism (7), the inner wall of the base (1) is slidably connected with a gas pressing plate (8), and the base (1) is fixedly connected with a placing sleeve (9).

2. The pediatric blood extractor of claim 1, wherein: The base (1) is fixedly connected with a device rack (2), the inner wall of the device rack (2) is rotationally connected with an adjusting ring (3) in a symmetrical structure, the adjusting ring (3) is fixedly connected with an adjusting rack (4), the adjusting rack (4) is slidably connected with a fixing sleeve (5), a tourniquet (6) is clamped between the two fixing sleeves (5), the base (1) is rotationally connected with a transmission mechanism (7), the inner wall of the base (1) is slidably connected with a gas pressing plate (8), and the base (1) is fixedly connected with a placing sleeve (9).

3. The pediatric blood extractor of claim 2, wherein: The top end of the device rack (2) is fixedly connected with a hanging rod (201) in a symmetrical structure, two limiting rods (202) are arranged below the hanging rod (201) in a symmetrical structure, one end of the limiting rod (202) is fixedly connected with the device rack (2), a plurality of disposable blood drawing needle hoses (203) are placed on the hanging rod (201), two limiting grooves (204) are formed in the inner wall of the device rack (2) in a symmetrical structure, two arc-shaped racks (205) are fixedly connected to the inner wall of the device rack (2) in a central symmetrical structure, a motor (206) is fixedly connected to the inner wall of the top end of the device rack (2), and the output end of the motor (206) is fixedly connected with a driving wheel (207).

4. The pediatric blood extractor of claim 3, wherein: The adjusting ring (3) is rotationally connected with the inner wall of the limiting groove (204), and an annular rack (301) is fixedly connected to one side of the adjusting ring (3).

5. The pediatric blood extractor of claim 4, wherein: The adjusting rack (4) is rotationally connected with a threaded rod (401), one end of the threaded rod (401) is fixedly connected with a transmission wheel (402), and the transmission wheel (402) is in meshing transmission with the arc-shaped rack (205).

6. The pediatric blood extractor of claim 5, wherein: The top end of the fixing sleeve (5) is fixedly connected with a sliding block (501), the sliding block (501) is in threaded connection with the threaded rod (401), one side of the fixing sleeve (5) is threadedly connected with an adjusting rod (502), the inner end of the adjusting rod (502) is rotationally connected with a clamping plate (503), the clamping plate (503) is slidably connected with the inner wall of the fixing sleeve (5) on the upper side and the lower side, and the outer end of the adjusting rod (502) is fixedly connected with a knob (504).

7. The pediatric blood extractor of claim 6, wherein: The transmission mechanism (7) includes a universal joint (701), which is rotationally connected with the base (1), one end of the universal joint (701) is fixedly connected with a driven wheel (702), the driven wheel (702) is in meshing transmission with the annular rack (301), the other end of the universal joint (701) is fixedly connected with a worm (703), the other end of the worm (703) is rotationally connected with the inner wall of the base (1), one side of the worm (703) is in meshing transmission with a worm gear (704), the worm gear (704) is rotationally connected with the inner wall of the base (1), the lower side of the worm gear (704) is fixedly connected with a rotating rod (705), the other end of the rotating rod (705) is rotationally connected with a squeezing wheel (706).

8. The pediatric blood extractor of claim 7, wherein: The outer wall of the pressing plate (8) is in sliding fit with the inner wall of the gas storage cavity (101), one side of the pressing plate (8) is fixedly connected with a guide rod (801), the guide rod (801) is in penetrating sliding fit with the inner wall of the gas storage cavity (101), the outer end of the guide rod (801) is fixedly connected with a contact plate (802), one side of the contact plate (802) is in sliding contact with the outer wall of the squeezing wheel (706), the other side of the contact plate (802) is fixedly connected with a spring (803), the other end of the spring (803) is fixedly connected with the inner wall of the base (1).

9. The pediatric blood extractor of claim 8, wherein: The inner wall of the placing sleeve (9) is fixedly connected with a rubber sleeve (901), the bottom end of the placing sleeve (9) is fixedly connected with a gas guide pipe (902) in the inner wall, the other end of the gas guide pipe (902) is in communication with the inner wall of the gas storage cavity (101), one side of the placing sleeve (9) is in penetrating sliding fit with a plurality of movable rods (903) in the annular structure, the inner end of the movable rod (903) is fixedly connected with a tension spring (904), the other end of the tension spring (904) is fixedly connected with the inner wall of the placing sleeve (9), the outer ends of the plurality of movable rods (903) are fixedly connected with an I-shaped frame (905), the inner end of the I-shaped frame (905) is fixedly connected with a plurality of ultraviolet disinfection lamps (906) in the annular structure.

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