Anti-collision protection device for sampling needle
By designing a sample needle anti-collision protection device including supporting table, column, test tube rack and other components, the liquid overflow and damage to the sample needle caused by the contact between the sample needle and the test tube is solved, and accurate sampling and efficient collision protection are achieved.
Patent Information
- Application Number
- CN202421717118.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-19
AI Technical Summary
During sampling, the sampling needle is prone to contact with the test tube wall, causing liquid overflow or damage to the sampling needle, affecting the sampling effect.
A sample needle anti-collision protection device is designed, including a support table, column, test tube frame, support plate, anti-collision positioning tube and positioning frame, and precise positioning and anti-collision protection of the sample needle is achieved through lifting cylinders and return springs.
The purpose of accurate sampling is achieved, the operation is simple, the collision between the sampling needle and the test tube is avoided, the sampling is stable, the collision protection is good, and it is suitable for test tubes of different specifications.
Smart Images
Figure CN222979621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biochemical detection, in particular to an anti-collision protection device for a sampling needle. Background Art
[0002] A biochemical analyzer, also known as a biochemical instrument, is an instrument that measures a specific chemical component in body fluids based on the principle of photoelectric colorimetry. Due to its fast measurement speed, high accuracy, and small consumption of reagents, it has been widely used in hospitals at all levels, epidemic prevention stations, and family planning service stations. The combined use can greatly improve the efficiency and benefits of routine biochemical tests.
[0003] In the prior art, when sampling the liquid in a test tube, manual sampling is usually adopted. However, when sampling a relatively thin and deep test tube, it is easy for the sampling needle to contact the test tube wall during manual sampling, resulting in the overflow of the sampling liquid or damage to the sampling needle, affecting the sampling effect. Summary of the Utility Model
[0004] The utility model aims to provide an anti-collision protection device for a sampling needle to overcome or at least partially solve the above problems.
[0005] To achieve the above object, the technical solution of the utility model is specifically implemented as follows:
[0006] The utility model provides an anti-collision protection device for a sampling needle, including a support platform and a column. The column is fixedly connected to the support platform. A test tube rack is slidably connected to the column, and a support plate is arranged above the test tube rack. The support plate is fixedly connected to a sliding sleeve, and the sliding sleeve is sleeved on the column and moves along the column. An anti-collision positioning tube is connected to the lower side of the support plate, and a positioning frame is fixedly connected to the upper side of the support plate. A first positioning clamp plate and a second positioning clamp plate are respectively arranged inside the positioning frame. The first positioning clamp plate is fixedly connected to the rear inner wall of the positioning frame, and the second positioning clamp plate is arranged at the front inner part of the positioning frame.
[0007] As a further solution of the utility model, a fixing plate is fixedly connected to the rear side of the column, and a lifting cylinder is fixedly connected to the fixing plate. The telescopic rod of the lifting cylinder passes downward through the fixing plate and is fixedly connected to the sliding sleeve.
[0008] As a further solution of the utility model, a pull rod is inserted into the front side of the positioning frame, and the pull rod moves along the positioning frame. The tail end of the pull rod is fixedly connected to the second positioning clamp plate by a thread. A first return spring is sleeved on the pull rod, and the first return spring is arranged between the second positioning clamp plate and the positioning frame.
[0009] As a further solution of the present utility model, arc grooves are provided on the rear side of the second positioning clamping plate and the front side of the first positioning clamping plate.
[0010] As a further solution of the present utility model, a round hole is provided on the support plate, the upper part of the anti-collision positioning tube extends into the round hole, and is meshed and connected with the support plate through threads.
[0011] As a further solution of the present utility model, a guide groove is provided at the front lower part of the column, the rear part of the test tube rack is a guide rail, and the guide rail is slidably connected to the guide groove.
[0012] As a further solution of the present utility model, a connecting sleeve is fixedly connected to the rear side of the column, a positioning rod is inserted into the connecting sleeve, the front end of the positioning rod passes through the column and extends into the positioning hole, the positioning hole is provided on the rear side of the test tube rack, and a second return spring and a baffle are further provided in the connecting sleeve, the baffle is sleeved and fixed on the positioning rod, and the second return spring is arranged between the connecting sleeve and the baffle.
[0013] As a further solution of the present utility model, a plurality of hole grooves are provided on the test tube rack, and the diameters of the plurality of hole grooves are different, for placing test tubes of different specifications.
[0014] The present utility model provides a sampling needle anti-collision protection device, and the beneficial effects are as follows: the purpose of accurate sampling is achieved, the operation is simple, the collision between the sampling needle and the test tube is avoided, the sampling stability is ensured, the anti-collision protection performance is good, the positioning accuracy is high, it is convenient to take and place test tubes of different specifications, the applicable range is expanded, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.
[0016] Figure 1 It is a schematic structural diagram of the present utility model.
[0017] Figure 2 It is a side view of the present utility model.
[0018] Figure 3 It is a top view of the positioning frame in the present utility model.
[0019] Figure 4 It is a top view of the test tube rack in the present utility model.
[0020] Figure 5This is the rear view of the test tube rack in the present utility model.
[0021] Figure 6 This is the structural schematic diagram of the sampling needle in the present utility model.
[0022] In the figure: 1. Support platform; 2. Test tube rack; 3. Support plate; 4. Positioning frame; 5. Column; 6. Lifting cylinder; 7. Sliding sleeve; 8. Anti-collision positioning tube; 9. First positioning clamp; 10. Second positioning clamp; 11. First reset spring; 12. Pull rod; 13. Connecting sleeve; 14. Positioning rod; 15. Second reset spring; 16. Sampling needle; 21. Hole groove; 22. Guide rail; 23. Positioning hole. Specific embodiments
[0023] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.
[0024] See Figure 1-6 , a sampling needle anti-collision protection device provided by an embodiment of the present utility model includes a support platform 1 and a column 5. The column 5 is fixedly connected to the support platform 1. A test tube rack 2 is slidably connected to the column 5. A support plate 3 is provided above the test tube rack 2. The support plate 3 is fixedly connected to a sliding sleeve 7. The sliding sleeve 7 is sleeved on the column 5 and moves along the column 5. An anti-collision positioning tube 8 is connected to the lower side of the support plate 3. A positioning frame 4 is fixedly connected to the upper side of the support plate 3. A first positioning clamp 9 and a second positioning clamp 10 are respectively arranged inside the positioning frame 4. The first positioning clamp 9 is fixedly connected to the inner rear wall of the positioning frame 4. The second positioning clamp 10 is arranged at the inner front part of the positioning frame 4.
[0025] A fixing plate is fixedly connected to the rear side of the column 5. A lifting cylinder 6 is fixedly connected to the fixing plate. The telescopic rod of the lifting cylinder 6 passes downward through the fixing plate and is fixedly connected to the sliding sleeve 7.
[0026] During the use of the utility model, the test tube to be sampled is placed at the corresponding hole slot 21 of the test tube rack 2, and then the positioning rod 14 is used to position the test tube rack 2, so that the test tube is directly below the anti-collision positioning tube 8. Then, the pull rod 12 is first pulled forward, which drives the positioning clamping plate two 10 to move forward and compress the first return spring 11, generating a rebounding force. Then, the sampling needle 16 is placed between the positioning clamping plate one 9 and the positioning clamping plate two 10, and the lower part of the sampling needle 16 passes through the round hole and the anti-collision positioning tube 8 and extends out from the bottom end of the anti-collision positioning tube 8. Then, the pull rod 12 is released. At this time, the first return spring 11 drives the positioning clamping plate two 10 to move backward, realizing the clamping of the sampling needle 16 by the positioning clamping plate one 9 and the positioning clamping plate two 10. Then, the operation of the lifting cylinder 6 drives the sliding sleeve 7 to move downward, and then synchronously drives the sampling needle 16 and the anti-collision positioning tube 8 to move downward. Then, the bottom end of the anti-collision positioning tube 8 extends into the top of the test tube, so as to clamp the test tube. At the same time, the sampling needle 16 extends into the test tube to sample the liquid in the test tube. After the sampling is completed, the reset of the lifting cylinder 6 drives the sampling needle 16 to move upward. Finally, the pull rod 12 is pulled again to separate the positioning clamping plate two 10 from the sampling needle 16, and the sampling needle 16 can be removed. Its operation is simple, and the anti-collision protection effect of the sampling needle 16 is good.
[0027] As Figure 1-3 shown, the front side of the positioning frame 4 is inserted with a pull rod 12, and the pull rod 12 moves along the positioning frame 4. The tail end of the pull rod 12 is fixedly connected with the positioning clamping plate two 10 by threads. A first return spring 11 is sleeved on the pull rod 12, and the first return spring 11 is arranged between the positioning clamping plate two 10 and the positioning frame 4. Arc-shaped grooves are formed on the rear side of the positioning clamping plate two 10 and the front side of the positioning clamping plate one 9, which is convenient for clamping and fixing the sampling needle 16 between the positioning clamping plate one 9 and the positioning clamping plate two 10, realizing the positioning of the sampling needle 16, and the design of the arc-shaped groove is convenient for clamping and fixing the cylindrical sampling needle 16.
[0028] As Figure 2 shown, a round hole is formed on the support plate 3. The upper part of the anti-collision positioning tube 8 extends into the round hole and is meshed with the support plate 3 by threads. The design of the round hole is convenient for the sampling needle 16 to pass through and then pass through the anti-collision positioning tube 8, realizing the purpose of accurately positioning and anti-collision protection of the sampling needle 16.
[0029] As Figure 1 、 Figure 4 and Figure 5As shown in the figure, a guide groove is provided at the front lower part of the vertical column 5, the rear part of the test tube rack 2 is a guide rail 22, and the guide rail 22 is slidably connected to the guide groove. A connecting sleeve 13 is fixedly connected to the rear side surface of the vertical column 5, a positioning rod 14 is inserted into the connecting sleeve 13, the front end of the positioning rod 14 passes through the vertical column 5 and extends into a positioning hole 23, the positioning hole 23 is opened on the rear side surface of the test tube rack 2. A second return spring 15 and a baffle are further arranged in the connecting sleeve 13, the baffle is sleeved and fixed on the positioning rod 14, and the second return spring 15 is arranged between the connecting sleeve 13 and the baffle. A plurality of hole grooves 21 are opened on the test tube rack 2, and the diameters of the plurality of hole grooves 21 are different from each other, which are used for placing test tubes of different specifications. By making the hole grooves 21 correspond to the positioning holes 23 one by one, it is convenient to position the test tube rack 2 with the positioning rod 14 after placing test tubes of different specifications on the test tube rack 2, so that the required test tube is located directly below the anti-collision positioning tube 8, which is convenient for the sampling needle 16 to accurately extend into the test tube for sampling.
[0030] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.
Claims
1. A sampling needle anti-collision protection device, comprising a support platform (1) and a column (5), wherein the column (5) is fixedly connected to the support platform (1), characterized in that: A test tube rack (2) is slidably connected to the column (5), and a support plate (3) is arranged above the test tube rack (2), the support plate (3) is fixedly connected to a sliding sleeve (7), the sliding sleeve (7) is sleeved on the column (5) and moves along the column (5), an anti-collision positioning tube (8) is connected to the lower side of the support plate (3), and a positioning frame (4) is fixedly connected to the upper side of the support plate (3), and a positioning clamp plate 1 (9) and a positioning clamp plate 2 (10) are respectively arranged inside the positioning frame (4), the positioning clamp plate 1 (9) is fixedly connected to the inner rear wall of the positioning frame (4), and the positioning clamp plate 2 (10) is arranged at the inner front position of the positioning frame (4).
2. A sampling needle anti-collision protection device according to claim 1, characterized in that: The rear side of the upright column (5) is fixedly connected to a fixing plate, and the fixing plate is fixedly connected to a lifting cylinder (6), and the telescopic rod of the lifting cylinder (6) passes through the fixing plate downward and is fixedly connected to the sliding sleeve (7).
3. The sampling needle anti-collision protection device according to claim 1, characterized in that: A pull rod (12) is inserted into the front side of the positioning frame (4), and the pull rod (12) moves along the positioning frame (4). The tail end of the pull rod (12) is fixedly connected to the second positioning clamp plate (10) through a thread. A return spring (11) is sleeved on the pull rod (12), and the return spring (11) is arranged between the second positioning clamp plate (10) and the positioning frame (4).
4. A sampling needle anti-collision protection device according to claim 3, characterized in that: The rear side of the second positioning clamp plate (10) and the front side of the first positioning clamp plate (9) are both provided with arc grooves.
5. The sampling needle anti-collision protection device according to claim 1, characterized in that: The support plate (3) is provided with a circular hole, the upper portion of the anti-collision positioning tube (8) extends into the circular hole and is meshed and connected with the support plate (3) via a thread.
6. The sampling needle anti-collision protection device according to claim 1, characterized in that: A guide groove is provided at the front lower part of the column (5), and the rear part of the test tube rack (2) is a guide rail (22), which is slidably connected to the guide groove.
7. The sampling needle anti-collision protection device according to claim 6, characterized in that: A connecting sleeve (13) is fixedly connected to the rear side of the column (5), a positioning rod (14) is inserted on the connecting sleeve (13), a front end of the positioning rod (14) passes through the column (5) and extends into a positioning hole (23), the positioning hole (23) is opened on the rear side of the test tube rack (2), a second return spring (15) and a baffle are also arranged in the connecting sleeve (13), the baffle is fixedly sleeved on the positioning rod (14), and the second return spring (15) is arranged between the connecting sleeve (13) and the baffle.
8. The sampling needle anti-collision protection device according to claim 1, characterized in that: The test tube rack (2) is provided with a plurality of holes (21), and the diameters of the plurality of holes (21) are different, so as to be used for placing test tubes of different specifications.