Anti-collision device of sampling needle

Abstract

The utility model provides an anti-collision device of a sample adding needle, which comprises a sample adding arm and a sample adding needle, the bottom of the sample adding needle is arranged in a conical protective cover, the upper end of the conical protective cover is fixedly connected with a connecting plate, the upper side surface of the connecting plate is fixedly connected with two adjusting screw rods in a front-back symmetrical manner, the adjusting screw rods are sleeved with adjusting nuts, and the adjusting nuts are connected with the conical protective cover. The adjusting nut is rotationally connected to the sample adding arm through a bearing, a driven synchronous wheel is fixedly sleeved on the adjusting nut, a driving synchronous wheel and a steering wheel are respectively connected to the lower side of the sample adding arm, and the driving synchronous wheel, the driven synchronous wheel and the steering wheel are all connected to the synchronous belt. The bottom end of the sample adding needle is protected by the conical protective cover, so that the aim of anti-collision protection is fulfilled, the sample adding needle is prevented from being in direct contact with an inlet of the biochemical analyzer, the sample adding needle can be effectively prevented from being deformed or damaged due to collision, and the safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical analyzer accessories, in particular to an anti-collision device for a sample adding needle. Background Art

[0002] A biochemical analyzer, also known as a biochemical analyzer, measures specific chemical components in body fluids based on the principle of photoelectric colorimetry. Due to its rapid measurement speed, high accuracy, and minimal reagent consumption, it is now widely used in hospitals, epidemic prevention stations, and family planning service centers. Its use in conjunction with other instruments can significantly improve the efficiency and profitability of routine biochemical testing.

[0003] The sample addition needle provides a cavity space for the transfer of samples, reagents and other media. The samples and reagents that need to participate in the reaction are temporarily stored in the needle cavity. The movement of the needle is driven by the motion mechanism to realize the transfer of samples and reagents, thereby completing the sample and reagent addition.

[0004] In the prior art, when using a sample needle to add a sample or reagent into a biochemical analyzer, a sample arm is usually used to clamp and move the sample needle. Since there is no protection on the outside of the sample needle, the sample needle is likely to come into contact with and collide with the biochemical analyzer when adding the sample to the biochemical analyzer, which not only affects the sample addition effect, but also easily causes damage to the sample needle. Utility Model Content

[0005] The utility model aims to provide an anti-collision device for a sample adding needle to overcome the above problems or at least partially solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is specifically implemented as follows:

[0007] The cam is secured to the upper edge of the support frame, and the cam is secured to the lower edge of the support frame, and the cam is secured to the lower edge of the support frame.

[0008] As a further solution of the present invention, a servo motor is fixedly connected to the upper side of the sample adding arm, and the output shaft of the servo motor passes through the sample adding arm downward and is fixedly connected to the active synchronous wheel.

[0009] As a further solution of the present invention, the steering wheel is rotatably connected to the sample loading arm via a bearing.

[0010] As a further solution of the present invention, a circular hole for the sample addition needle to pass through is opened on the lower side of the conical protective cover.

[0011] As a further solution of the present invention, a buffer rubber pad is bonded and fixed to the outer side surface of the conical protective cover.

[0012] As a further solution of the present invention, a hole for the sample adding needle to pass through is opened in the upper middle part of the connecting plate.

[0013] The utility model provides an anti-collision device for a sample adding needle, which has the beneficial effects of protecting the bottom end of the sample adding needle through the conical protective cover, achieving the purpose of anti-collision protection, avoiding direct contact between the sample adding needle and the inlet of the biochemical analyzer, and effectively preventing the sample adding needle from being deformed or damaged by collision, thereby ensuring safety, being simple to operate, and having a good anti-collision effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a bottom view of the present utility model.

[0017] Figure 3 It is a side view of the present utility model.

[0018] In the figure: 1. Sample loading arm; 2. Sample loading needle; 3. Conical protective cover; 4. Connecting plate; 5. Synchronous belt; 6. Active synchronous pulley; 7. Servo motor; 8. Adjusting screw; 9. Adjusting nut; 10. Steering wheel; 11. Driven synchronous pulley. DETAILED DESCRIPTION

[0019] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying 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. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0020] See also Figure 1-3 The embodiment of the present invention provides an anti-collision device for a sample loading needle, comprising a sample loading arm 1 and a sample loading needle 2. The sample loading needle 2 is connected to the sample loading arm 1, the bottom of the sample loading needle 2 is arranged in a conical protective cover 3, and a connecting plate 4 is fixedly connected to the upper end of the conical protective cover 3. The connecting plate 4 is sleeved on the sample loading needle 2, and two adjusting screws 8 are fixedly connected to the upper side surface of the connecting plate 4 in a front-back symmetrical manner. An adjusting nut 9 is sleeved on the adjusting screw 8, and the adjusting nut 9 is connected to the adjusting screw 8 by a threaded engagement. Then, the adjusting nut 9 is rotatably connected to the sample loading arm 1 through a bearing, and a driven synchronous wheel 11 is also sleeved and fixed on the adjusting nut 9, and the driven synchronous wheel 11 is located on the lower side of the sample loading arm 1, and as for the front and rear sides of the sample loading needle 2, the lower side of the sample loading arm 1 is also connected to the active synchronous wheel 6 and the steering wheel 10, respectively. The steering wheel 10 is arranged on the left side of the sample loading needle 2, and the active synchronous wheel 6 is arranged on the left side of the steering wheel 10. The active synchronous wheel 6, the driven synchronous wheel 11 and the steering are all connected to the timing belt 5.

[0021] A servo motor 7 is also fixedly connected to the upper side of the sample loading arm 1. The output shaft of the servo motor 7 passes downward through the sample loading arm 1 and is fixedly connected to the active synchronous wheel 6. The active synchronous wheel 6 can be driven by the servo motor 7, thereby driving the synchronous belt 5 and the driven synchronous rotation, thereby driving the adjusting screw 8 to move up and down.

[0022] The steering wheel 10 is rotatably connected to the sample loading arm 1 via a bearing.

[0023] A circular hole is provided on the lower side of the conical protective cover 3 for the sample addition needle 2 to pass through. A buffer rubber pad is also bonded and fixed to the outer side of the conical protective cover 3. A hole is provided on the upper middle part of the connecting plate 4 for the sample addition needle 2 to pass through, which improves the anti-collision protection of the conical protective cover 3 for the sample addition needle 2 and also facilitates the conical protective cover 3 and the connecting plate 4 to move up and down along the sample addition needle 2, thereby exposing the bottom end of the sample addition needle 2.

[0024] After the sample is collected, the guide rail 1 is rotated and the guide rail 2 is rotated, so that the sample collection device 2 is moved upward, and the guide rail 1 is moved upward, so that the sample collection device 2 is moved upward, and the guide rail 2 is moved downward, so that the sample collection device 2 is moved downward, and the guide rail 2 is moved downward, so that the sample collection device 2 is moved downward, and the guide rail 2 is moved downward, so that the sample collection device 2 is moved downward, and the guide rail 2 is moved downward, so that the sample collection device 2 is moved downward, and the guide rail 2 is moved downward, so that the guide rail 2 is moved downward, and the guide rail 2 is moved downward, so that the guide rail 2 is moved downward, and the guide rail 2 is moved downward, so that the guide rail 2 is moved downward,

[0025] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A sample needle anti-collision device, comprising a sample needle arm (1) and a sample needle (2), wherein the sample needle (2) is connected to the sample needle arm (1), characterized in that: The bottom of the sample addition needle (2) is arranged in the conical protective cover (3), and a connecting plate (4) is fixedly connected to the upper end of the conical protective cover (3). The connecting plate (4) is sleeved on the sample addition needle (2), and two adjusting screws (8) are fixedly connected to the upper side surface of the connecting plate (4) in a front-back symmetrical manner. The adjusting screw (8) is sleeved with an adjusting nut (9), and the adjusting nut (9) and the adjusting screw (8) are connected by threaded engagement. The adjusting nut (9) is rotatably connected to the sample addition arm (1) through a bearing, and is adjusted in the adjustment direction. A driven synchronous wheel (11) is sleeved and fixed on the joint nut (9), and the driven synchronous wheel (11) is located on the lower side of the sample adding arm (1) and is connected to the front and rear sides of the sample adding needle (2). The lower side of the sample adding arm (1) is also connected to a driving synchronous wheel (6) and a steering wheel (10), respectively. The steering wheel (10) is arranged on the left side of the sample adding needle (2), and the driving synchronous wheel (6) is arranged on the left side of the steering wheel (10). The driving synchronous wheel (6), the driven synchronous wheel (11) and the steering wheel are all connected to the synchronous belt (5).

2. The anti-collision device for a sample injection needle according to claim 1, characterized in that: The upper side of the sample adding arm (1) is also fixedly connected to a servo motor (7), and the output shaft of the servo motor (7) passes through the sample adding arm (1) downward and is fixedly connected to the active synchronous wheel (6).

3. The anti-collision device for a sample injection needle according to claim 1, characterized in that: The steering wheel (10) is rotatably connected to the sample adding arm (1) via a bearing.

4. The anti-collision device for a sample injection needle according to claim 1, characterized in that: A circular hole for the sample addition needle (2) to pass through is provided on the lower side of the conical protective cover (3).

5. The anti-collision device for a sample injection needle according to claim 4, characterized in that: A buffer rubber pad is also bonded and fixed to the outer side surface of the conical protective cover (3).

6. The anti-collision device for a sample injection needle according to claim 1, characterized in that: The upper middle portion of the connecting plate (4) is provided with a hole for the sample addition needle (2) to pass through.

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