Medical blood drawing test tube rack
By using the meshing connection between the extrusion strip and the toothed plate, as well as the design of the lifting block and the threaded rod for adjustment, the problem of the single and loose clamping structure of the test tube rack is solved, and the stable fixation and convenient handling of test tubes of different sizes are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-29
AI Technical Summary
Existing test tube racks have a simple clamping structure, are prone to loosening, and are not suitable for fixing test tubes of different sizes.
The design employs a combination of extrusion strips and toothed plates, along with lifting blocks and threaded rods for adjustment, to achieve multi-point extrusion and fixation of the test tubes. Rubber rings and guide rings are used to accommodate test tubes of different sizes.
It achieves stable fixation and convenient handling of test tubes of different sizes, improves the work efficiency of medical staff, and avoids the problem of loosening of the clamping structure.
Smart Images

Figure CN224293317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, specifically to a medical blood collection tube holder. Background Technology
[0002] In medical testing, blood drawing is a common method of sampling. Blood is drawn from a biological sample into a test tube using a needle, which facilitates further experimental processing. After the blood is drawn, the test tubes are usually placed in a test tube rack. Traditional test tube racks have a relatively simple structure, usually using a simple cylinder to confine the test tubes.
[0003] A blood collection tube rack, disclosed in CN220514238U, includes a rack with multiple test tube slots. Each slot contains a test tube stabilizing device, which includes a base plate with the same dimensions as the inner diameter of the test tube slots. Multiple guide rods are evenly distributed around the base plate. The side walls of the test tube slots have grooves corresponding to the guide rods, with baffles on both sides. Rotating shafts are located on both sides of the guide rods, and clamping blocks are fitted onto the rotating shafts. The lower ends of the clamping blocks abut against the baffles, while the upper ends face inwards towards the test tube slots. Compared to existing test tube racks, this design effectively maintains test tube stability during insertion and facilitates easy retrieval. It significantly improves the efficiency of blood collection for medical staff while ensuring stable placement of blood collection tubes. This avoids the problems of inconvenient placement and retrieval due to small test tube slots, and unstable placement and tilted test tube openings due to large test tube slots.
[0004] The aforementioned existing technology has some defects in actual use. The clamping structure is relatively simple and prone to loosening. It lacks a fixing structure and is inconvenient for clamping and placing test tubes of different sizes. Utility Model Content
[0005] The purpose of this invention is to provide a medical blood collection tube holder that solves the problems of existing test tube holders having a simple clamping structure, lacking fixation, and being inconvenient for placing and clamping test tubes of different sizes.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a medical blood collection tube holder, comprising a box body, wherein multiple receiving tubes are arranged in an array inside the box body, multiple extrusion strips are arranged inside the box body, toothed plates are installed at both ends of the extrusion strips on the side away from the receiving tubes, and lifting blocks are arranged inside the receiving tubes.
[0007] The receiving tube is composed of multiple arc-shaped pieces, and a rubber ring is sleeved on the outer wall of the top end of the receiving tube. An extrusion slider is provided on the side of the receiving tube near the extrusion strip.
[0008] Each extrusion bar is fixedly connected to a fixed toothed bar on the side near the toothed plate. The teeth on the side wall of the toothed plate are engaged with the teeth of the fixed toothed bar. Through holes are provided on both sides of the box body to slide up and down corresponding to the extrusion bar.
[0009] A connecting plate is provided on one side of the lifting block, and a sliding rack is provided at the bottom of the receiving tube on the side away from the extrusion strip.
[0010] Preferably, a guide ring is provided inside the box near the top of the receiving tube, the inner wall of the guide ring corresponds to the inner wall of the receiving tube, and the top center of the guide ring is inclined to the outer wall.
[0011] Preferably, the bottom of the receiving tube is fixedly connected to the bottom of the box body, the extrusion slider is slidably connected to the inside of the box body, one end of the extrusion slider passes through the gap between the two arc-shaped pieces of the receiving tube and is slidably connected to the receiving tube, and the top of the extrusion slider is inclined to the bottom on the side away from the receiving tube, and the bottom of the extrusion strip is inclined correspondingly to the extrusion slider.
[0012] Preferably, a connecting plate is installed on the side of the lifting block away from the extrusion strip. The two ends of the connecting plate pass through the internal gap of the receiving tube and are fixedly connected to the lifting block. The side wall of the connecting plate away from the receiving tube is slidably connected to the sliding rack.
[0013] Preferably, the connecting plate is internally threaded with a threaded rod, one end of which penetrates the interior of the connecting plate and fits against the outer wall of the receiving tube. A gear is installed at one end of the threaded rod, and the threaded rod is meshed with the top of the sliding rack through the gear. The outer wall of the box is provided with a rectangular hole corresponding to the sliding rack.
[0014] Preferably, a connecting strip is provided on the side of the extrusion strip away from the receiving tube, and both ends of the connecting strip are fixedly connected to toothed plates. Rectangular holes corresponding to the connecting strip are opened on both sides of the box body. The teeth of the fixed toothed strip and the toothed plate are inclined accordingly. A spring is provided on the side of the toothed plate away from the extrusion strip, and a fixing plate is fixedly connected to the end of the spring away from the toothed plate. The fixing plate is fixedly connected to the inside of the box body.
[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0016] 1. The receiving tube clamps and squeezes the test tube to fix it in place. When further fixation is needed, the squeezing bar can be moved further down, causing it to press against the squeezing slider, which moves into the receiving tube, thus fixing the test tube inside. During use, the movement of the squeezing bar to the bottom also moves the fixing rack to the bottom. The meshing connection between the toothed plate and the fixing rack prevents the fixing rack from moving upwards, thus preventing the squeezing bar from moving in the opposite direction and loosening. When it is necessary to release the fixation, the connecting bar can be easily moved, causing the two toothed plates to move, thereby releasing the meshing between the toothed plates and the fixing rack, releasing the restriction on the squeezing bar, allowing the squeezing slider to move in the opposite direction, and facilitating the removal of the test tube. This allows for convenient fixation and removal of the test tube.
[0017] 2. Moving the sliding rack causes the connecting plate to move up and down, which in turn causes the lifting block to move up and down. Adjusting the lifting block at the bottom of the receiving tube allows for adjustment of the insertion depth inside the receiving tube, making it easier to place shorter test tubes. After adjusting the position of the lifting block, the sliding rack can also move horizontally along the connecting plate, causing the sliding rack to drive the threaded rod to rotate through the gears. This causes the threaded rod to press against the outer wall of the receiving tube, thus fixing the connecting plate to the receiving tube through the threaded rod and fixing the position of the lifting block. Since the outer wall of the receiving tube is pressed by the rubber ring, it is easy to press and fix test tubes of different sizes, making the device suitable for placing test tubes of different sizes. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the external structure of the extrusion strip of this utility model;
[0021] Figure 3 This is a schematic diagram of the connection between the extrusion strip and the receiving tube of this utility model;
[0022] Figure 4 This is a schematic diagram of the external connection structure of the lifting block of this utility model;
[0023] Figure 5 This is a schematic diagram of the connection between the extrusion strip and the toothed plate of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Box body; 101. Guide ring; 2. Receiving tube; 201. Rubber ring; 3. Extrusion strip; 301. Extrusion slider; 302. Fixed rack; 4. Tooth plate; 401. Connecting strip; 402. Spring; 403. Fixed plate; 5. Lifting block; 501. Connecting plate; 502. Threaded rod; 503. Sliding rack. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model provides, for example Figure 1-5 The illustrated medical blood collection tube holder includes a box body 1. Multiple receiving tubes 2 are arranged in an array inside the box body 1. Multiple extrusion strips 3 are also arranged inside the box body 1. Toothed plates 4 are installed at both ends of the extrusion strips 3 on the side away from the receiving tubes 2. Lifting blocks 5 are installed inside each receiving tube 2. Each receiving tube 2 is composed of multiple arc-shaped pieces. A rubber ring 201 is fitted onto the outer wall of the top of each receiving tube 2. Extrusion sliders 301 are installed on the side of each receiving tube 2 near the extrusion strips 3. Fixed toothed racks 302 are fixedly connected to the side of each extrusion strip 3 near the toothed plates 4. The teeth on the sidewalls of the toothed plates 4 mesh with the teeth of the fixed toothed racks 302. Through holes corresponding to the extrusion strips 3 are opened on both sides of the box body 1, allowing them to slide up and down. A connecting plate 501 is installed on one side of each lifting block 5, and a sliding toothed rack 503 is installed at the bottom of the side of the receiving tube 2 away from the extrusion strips 3.
[0028] Under the compression of the rubber ring 201, the top of the receiving tube 2 tilts further towards the center, thus facilitating the squeezing and clamping of the test tube by the receiving tube 2, thereby fixing the test tube. Simultaneously, when further fixation is needed, the squeezing strip 3 can be moved further down, causing the squeezing strip 3 to squeeze the squeezing slider 301, causing the squeezing slider 301 to move into the receiving tube 2, thereby squeezing and fixing the test tube inside the receiving tube 2. Due to the meshing connection between the toothed plate 4 and the fixing rack 302, the toothed plate 4 can prevent the fixing rack 302 from moving upwards, thus... The reverse movement of the extrusion strip 3 is avoided, thus preventing the extrusion slider 301 from loosening and achieving compression and fixation of the test tube. The lifting block 5 is moved up and down by the connecting plate 501. The insertion depth inside the receiving tube 2 can be adjusted by adjusting the lifting block 5 at the bottom of the receiving tube 2, which makes it easier to place some shorter test tubes. At the same time, after adjusting the position of the lifting block 5, the sliding rack 503 can also be moved horizontally along the connecting plate 501, so that the sliding rack 503 drives the threaded rod 502 to rotate through the gear, thereby causing the threaded rod 502 to press against the outer wall of the receiving tube 2.
[0029] like Figure 1 , Figure 2 As shown, guide rings 101 are provided inside the box 1 near the top of the receiving tube 2. The inner wall of the guide ring 101 corresponds to the inner wall of the receiving tube 2, and the top center of the guide ring 101 is inclined to the outer wall. The test tube is placed into the receiving tube 2 through the guide ring 101, so that the test tube can squeeze the receiving tube 2 itself when placed. Under the influence of the reaction force of the arc-shaped piece of the receiving tube 2, the inner wall of the receiving tube 2 can fit and squeeze the test tube.
[0030] like Figure 3 , Figure 5 As shown, the bottom of the receiving tube 2 is fixedly connected to the bottom of the box body 1, and the extrusion slider 301 is slidably connected to the inside of the box body 1. One end of the extrusion slider 301 passes through the gap between the two arc-shaped pieces of the receiving tube 2 and is slidably connected to the receiving tube 2. The top of the extrusion slider 301 is inclined to the bottom on the side away from the receiving tube 2. The bottom of the extrusion strip 3 is inclined to the corresponding extrusion slider 301. The extrusion strip 3 moves to the bottom, thereby extruding the extrusion slider 301 and causing the extrusion slider 301 to move into the receiving tube 2, thereby extruding and fixing the test tube inside the receiving tube 2.
[0031] like Figure 3 , Figure 4 As shown, a connecting plate 501 is installed on the side of the lifting block 5 away from the extrusion strip 3. Both ends of the connecting plate 501 pass through the internal gap of the receiving tube 2 and are fixedly connected to the lifting block 5. The side wall of the connecting plate 501 away from the receiving tube 2 is slidably connected to the sliding rack 503. A threaded rod 502 is threadedly connected inside the connecting plate 501. One end of the threaded rod 502 passes through the inside of the connecting plate 501 and fits against the outer wall of the receiving tube 2. A gear is installed at one end of the threaded rod 502. The threaded rod 502 is meshed with the top of the sliding rack 503 through the gear. A rectangular hole corresponding to the sliding rack 503 is opened on the outer wall of the box body 1. Moving the sliding rack 503 up and down will drive the connecting plate 501 to move up and down. Thus, the lifting block 5 is moved up and down through the connecting plate 501. By adjusting the lifting block 5 at the bottom of the receiving tube 2, the insertion depth inside the receiving tube 2 can be adjusted, which makes it convenient to place some shorter test tubes.
[0032] like Figure 3 , Figure 5As shown, a connecting strip 401 is provided on the side of the extrusion strip 3 away from the receiving tube 2. Both ends of the connecting strip 401 are fixedly connected to toothed plates 4. Rectangular holes corresponding to the connecting strip 401 are opened on both sides of the box body 1. The fixed toothed strip 302 and the teeth of the toothed plate 4 are inclined accordingly. A spring 402 is provided on the side of the toothed plate 4 away from the extrusion strip 3. A fixing plate 403 is fixedly connected to the end of the spring 402 away from the toothed plate 4. The fixing plate 403 is fixedly connected to the inside of the box body 1. When the extrusion strip 3 moves to the bottom, it drives the fixing toothed strip 302 to move to the bottom. Then, due to the meshing connection between the toothed plate 4 and the fixing toothed strip 302, the toothed plate 4 can prevent the fixing toothed strip 302 from moving to the top, thereby preventing the extrusion strip 3 from moving in the opposite direction, thus preventing the extrusion slider 301 from loosening and realizing the extrusion and fixing of the test tube.
[0033] In use, the corresponding blood test tube can be easily placed into the receiving tube 2 through the guide ring 101. The test tube then compresses the receiving tube 2 itself. Under the reaction force of the arc-shaped plate of the receiving tube 2, the inner wall of the receiving tube 2 is pressed against the test tube. Simultaneously, under the compression of the rubber ring 201, the top of the receiving tube 2 tilts further towards the center, facilitating the squeezing and clamping of the test tube, thus fixing it in place. Furthermore, when further fixation is needed, the squeezing strip 3 can be moved further down, causing it to compress the squeezing slider 301, moving it into the receiving tube 2. 1. The test tube inside the receiving tube 2 is squeezed and fixed. During use, the squeezing bar 3 moves to the bottom, which drives the fixing rack 302 to move to the bottom. Due to the meshing connection between the toothed plate 4 and the fixing rack 302, the toothed plate 4 can prevent the fixing rack 302 from moving to the top, thus preventing the squeezing bar 3 from moving in the opposite direction and preventing the squeezing slider 301 from loosening. This achieves the squeezing and fixing of the test tube. When it is necessary to release the fixation, the connecting bar 401 can be easily moved, which drives the two toothed plates 4 to move, thereby releasing the meshing between the toothed plates 4 and the fixing rack 302, thus releasing the restriction on the squeezing bar 3, making it convenient for the squeezing slider 301 to move in the opposite direction, and making it convenient to pull out the test tube. This makes it easy to fix and remove the test tube.
[0034] When placing test tubes of different lengths, the sliding rack 503 can be easily moved up and down, thereby driving the connecting plate 501 to move up and down. In turn, the connecting plate 501 drives the lifting block 5 to move up and down. By adjusting the lifting block 5 at the bottom of the receiving tube 2, the insertion depth inside the receiving tube 2 can be adjusted, making it convenient to place some shorter test tubes. At the same time, after adjusting the position of the lifting block 5, the sliding rack 503 can also be moved horizontally along the connecting plate 501, so that the sliding rack 503 drives the threaded rod 502 to rotate through the gear, thereby causing the threaded rod 502 to press against the outer wall of the receiving tube 2. This causes the connecting plate 501 to be pressed and fixed to the receiving tube 2 through the threaded rod 502, and the position of the lifting block 5 is fixed. Since the outer wall of the receiving tube 2 is pressed by the rubber ring 201, it is convenient to press and fix test tubes of different sizes, so that the device can be used to place test tubes of different sizes.
[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A medical blood collection tube holder, comprising a housing (1), characterized in that: The box body (1) is provided with multiple receiving tubes (2) arranged in an array inside. The box body (1) is provided with multiple extrusion strips (3). Both ends of the extrusion strips (3) away from the receiving tubes (2) are equipped with toothed plates (4). The receiving tubes (2) are provided with lifting blocks (5). The receiving tube (2) is composed of multiple arc-shaped pieces. A rubber ring (201) is sleeved on the outer wall of the top end of the receiving tube (2). An extrusion slider (301) is provided on the side of the receiving tube (2) near the extrusion strip (3). The extrusion strip (3) is fixedly connected to a fixed toothed strip (302) on the side near the toothed plate (4). The teeth on the side wall of the toothed plate (4) are engaged with the teeth of the fixed toothed strip (302). The two sides of the box body (1) are provided with through holes that slide up and down corresponding to the extrusion strip (3). A connecting plate (501) is provided on one side of the lifting block (5), and a sliding rack (503) is provided at the bottom of the side of the receiving tube (2) away from the extrusion strip (3).
2. The medical blood collection tube holder according to claim 1, characterized in that: The box (1) is provided with a guide ring (101) near the top of the receiving tube (2). The inner wall of the guide ring (101) corresponds to the inner wall of the receiving tube (2), and the top center of the guide ring (101) is inclined to the outer wall.
3. A medical blood collection tube holder according to claim 1, characterized in that: The bottom of the receiving tube (2) is fixedly connected to the bottom of the box body (1), the extrusion slider (301) is slidably connected to the inside of the box body (1), one end of the extrusion slider (301) passes through the gap between the two arc-shaped pieces of the receiving tube (2) and is slidably connected to the receiving tube (2), and the top of the extrusion slider (301) is inclined to the bottom on the side away from the receiving tube (2), and the bottom of the extrusion strip (3) is inclined to the corresponding extrusion slider (301).
4. A medical blood collection tube holder according to claim 1, characterized in that: A connecting plate (501) is installed on the side of the lifting block (5) away from the extrusion strip (3). The two ends of the connecting plate (501) pass through the internal gap of the receiving tube (2) and are fixedly connected to the lifting block (5). The side wall of the connecting plate (501) away from the receiving tube (2) is slidably connected to the sliding rack (503).
5. A medical blood collection tube holder according to claim 1, characterized in that: The connecting plate (501) is internally threaded with a threaded rod (502). One end of the threaded rod (502) passes through the interior of the connecting plate (501) and fits against the outer wall of the receiving tube (2). A gear is installed at one end of the threaded rod (502). The threaded rod (502) is meshed with the top of the sliding rack (503) through the gear. The outer wall of the box body (1) is provided with a rectangular hole corresponding to the sliding rack (503).
6. A medical blood collection tube holder according to claim 1, characterized in that: A connecting strip (401) is provided on the side of the extrusion strip (3) away from the receiving tube (2). Both ends of the connecting strip (401) are fixedly connected to toothed plates (4). Rectangular holes corresponding to the connecting strip (401) are opened on both sides of the box body (1). The fixed toothed strip (302) and the teeth of the toothed plate (4) are inclined accordingly. A spring (402) is provided on the side of the toothed plate (4) away from the extrusion strip (3). A fixing plate (403) is fixedly connected to the end of the spring (402) away from the toothed plate (4). The fixing plate (403) is fixedly connected to the inside of the box body (1).