A filling device for an SPR detection kit

Abstract

The utility model relates to automatic filling equipment technical field discloses a kind of filling equipment for SPR detection kit, equipment includes material storage tank, conveying belt, carousel and by hydraulic rod driven filling head, it is provided with material scraping subassembly and stirring cleaning subassembly. The material scraping subassembly includes annular locating block and hollow rubber block, the filling head in the annular locating block sliding and when rising, pass through the hollow rubber block, to scrape off outer wall residual reagent;The stirring rod end of the stirring cleaning subassembly is equipped with T groove, for being detachably matched with T block on stirring paddle or the connecting rod with arc rubber strip. The utility model solves the problem that the filling head hangs wall and leads to inaccurate problem of rationing, improves filling precision and saves reagent;Through the detachable structure of the stirring cleaning subassembly, the problem that the inner wall of material storage tank is difficult to clean manually and is inefficient is solved, and the integration of stirring and cleaning function is realized.

Description

Technical Field

[0001] This utility model relates to the field of automated filling equipment technology, and in particular to a filling device for an SPR test kit. Background Technology

[0002] In the fields of biochemistry and medical diagnostics, automated filling equipment is a key piece of equipment for producing test kits, ensuring high production efficiency and product consistency. Especially in applications of high-sensitivity analytical techniques such as surface plasmon resonance (SPR) detection, the corresponding kits place extremely stringent requirements on reagent filling accuracy, purity, and batch-to-batch consistency.

[0003] In existing filling equipment workflows, after the filling head inserts into the reagent kit to complete the injection, it needs to be raised and moved to the next station. During this process, a layer of liquid reagent inevitably adheres to the outer wall of the filling head. When the filling head moves, this residual reagent may drip due to gravity or vibration, which directly leads to two main problems: First, the amount of dripping liquid is uncontrolled, causing deviations in the actual dosage that ultimately enters each reagent kit, affecting the accuracy of quantitative filling. For SPR assays that rely on precise concentration ratios, this deviation will seriously affect the reliability of the test results. Second, SPR reagents are usually expensive, and the cumulative loss caused by adhering to the wall and dripping during long-term production will significantly increase production costs.

[0004] Furthermore, when a batch of production is completed or a different type of reagent needs to be used, the storage tanks for the reagents must be thoroughly cleaned to prevent cross-contamination. Traditional cleaning methods often rely on manual disassembly and scrubbing of the storage tanks. This process is not only time-consuming and labor-intensive, disrupting production continuity and reducing overall efficiency, but manual cleaning also makes it difficult to ensure that every corner of the inner wall is thoroughly cleaned, easily leaving dead spots and residues, posing a risk of contamination to subsequent production. Existing equipment rarely combines efficient filling with convenient automated cleaning functions effectively. Therefore, this utility model proposes a filling device for SPR test kits to address the shortcomings of existing technologies. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a filling device for SPR test kits, which aims to improve the problems of reagent residue on the outer wall of the filling head leading to inaccurate quantification and the difficulty in thoroughly cleaning the inner wall of the storage tank in the existing SPR test kit filling devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A filling device for an SPR test kit includes: a storage tank, a conveyor belt and a second motor for conveying the test kit, a turntable and a third motor for positioning the test kit, a hydraulic rod for driving the filling action, a filling head for performing the filling, a tube for conveying the reagent, and a solenoid valve for controlling the filling volume; as well as a scraping assembly and a stirring and cleaning assembly.

[0007] The scraping assembly includes an annular positioning block and a hollow rubber block; the stirring and cleaning assembly includes a first motor, a stirring rod, a stirring paddle, and a detachable connecting rod with an arc-shaped rubber strip at the end. The connecting rod is provided with a T-shaped block, and the stirring rod is provided with a T-shaped groove that mates with the T-shaped block.

[0008] Furthermore, the filling head is configured to slide vertically inside the annular positioning block under the drive of the hydraulic rod and pass through the hollow rubber block; the connecting rod is detachably connected by a T-shaped block thereon slidingly engaging with a T-shaped groove on the stirring rod.

[0009] Preferably, the scraping assembly further includes a support block and a connecting block; the support block supports and fixes the annular positioning block and the hollow rubber block through the connecting block.

[0010] Preferably, the device further includes a connecting piece and bolts for fixing the connecting rod to the stirring rod.

[0011] Preferably, the curvature of the arc-shaped rubber strip is adapted to the inner wall of the storage tank.

[0012] Preferably, the device further includes a support platform for supporting the storage tank, and the top of the storage tank is covered with a round cover.

[0013] Preferably, the turntable is provided with a support plate for receiving reagent kits transported from the conveyor belt, and the turntable is provided with an arc-shaped notch in the circumference for positioning the reagent kits; the device also includes a circular bracket for supporting the turntable and support legs for supporting the conveyor belt.

[0014] Preferably, the conveyor belt has side plates on both sides to prevent the reagent kit from tipping over.

[0015] Preferably, the filling head is connected to the hydraulic rod via a hanging plate; the device also includes a dust cover disposed above the filling head.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by setting up a scraping component and a stirring and cleaning component, the problems of reagent residue on the outer wall of the filling head leading to inaccurate quantification and difficulty in thoroughly cleaning the inner wall of the storage tank in the prior art are solved. The technical effects of improving filling accuracy, saving reagents, and automating the cleaning of the inner wall of the storage tank are achieved.

[0017] 2. The scraping component in this utility model fixes the annular positioning block and the hollow rubber block on the lifting path of the filling head. When the filling head completes the liquid injection and rises, its outer wall can be scraped by the inner hole of the hollow rubber block, thereby scraping the attached residual reagent back into the reagent kit. This ingenious structural design effectively avoids dripping and waste, and ensures the accuracy and consistency of the filling dosage of each reagent kit.

[0018] 3. The stirring and cleaning component in this utility model has a detachable connection structure designed at the end of the stirring rod driven by the motor. This allows it to be equipped with a stirring paddle to mix the liquid, or it can be replaced with a connecting rod with an arc-shaped rubber strip when needed. The original power source drives the rubber strip to rotate and scrape the inner wall of the storage tank, thus integrating stirring and cleaning functions. This simplifies the overall structure of the equipment and significantly improves the convenience of equipment maintenance and cleaning. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a filling device for an SPR test kit proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the first motor of a filling device for an SPR test kit proposed in this utility model; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the storage tank of a filling device for an SPR test kit proposed in this utility model; Figure 5 This is an exploded view of the T-block of a filling device for an SPR test kit proposed in this utility model; Figure 6 This is a cross-sectional view of the hollow rubber block of a filling device for an SPR test kit proposed in this utility model.

[0020] Legend: 1. Circular support; 2. Mixing and cleaning assembly; 201. First motor; 202. Round cover; 203. Storage tank; 204. Mixing paddle; 205. Arc-shaped rubber strip; 206. Connecting rod; 207. T-block; 208. T-slot; 209. Connecting piece; 210. Bolt; 211. Support platform; 212. Mixing rod; 3. Scraping assembly; 301. Annular positioning block; 302. Hollow rubber block; 303. Connecting block; 304. Support block; 4. Side plate; 5. Conveyor belt; 6. Second motor; 7. Support leg; 8. Dust cover; 9. Hydraulic rod; 10. Third motor; 11. Pipe; 12. Solenoid valve; 13. Hanging plate; 14. Turntable; 15. Support plate; 16. Arc-shaped notch; 17. Filling head. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-6 This utility model provides a filling device for an SPR test kit, which aims to solve the problems in the prior art where reagent residue on the outer wall of the filling head easily leads to inaccurate quantification and the inner wall of the storage tank is difficult to clean thoroughly.

[0023] The filling equipment for the SPR test kit includes a storage tank 203, a support platform 211 for supporting and fixing the storage tank 203, and a removable round cover 202 on the top of the storage tank 203. The equipment also includes a conveyor mechanism for transporting the test kits and a positioning mechanism for positioning the test kits. The conveyor mechanism includes a conveyor belt 5, a second motor 6 driving the conveyor belt 5 to rotate, support legs 7 supporting the conveyor belt 5 and the second motor 6, and side plates 4 fixedly connected to both sides of the conveyor belt 5. The positioning mechanism includes a turntable 14, a third motor 10 driving the turntable 14 to rotate, and a round support... The frame 1 provides rotational support for the turntable 14. A support plate 15 is fixedly connected to the upper surface of the turntable 14. An arc-shaped notch 16 is opened in the circumference of the turntable 14. The equipment also includes a filling mechanism for performing filling. The filling mechanism includes a filling head 17. A hydraulic rod 9 is fixedly connected to the filling head 17 through a hanging plate 13. The hydraulic rod 9 drives the filling head 17 to reciprocate in the vertical direction. A dust cover 8 is provided above the filling head 17. One end of the pipe 11 is connected to the bottom of the storage tank 203, and the other end is connected to the filling head 17. A solenoid valve 12 is installed on the pipe 11.

[0024] The filling equipment for the SPR test kit also includes a scraper assembly 3 and a mixing and cleaning assembly 2.

[0025] Specifically, the scraping assembly 3 includes an annular positioning block 301, a hollow rubber block 302, a connecting block 303, and a support block 304. The support block 304 is fixedly installed on the circular bracket 1. The annular positioning block 301 and the hollow rubber block 302 are fixedly connected to the support block 304 through the connecting block 303. The annular positioning block 301 is positioned above the hollow rubber block 302. The outer side of the filling head 17 slides in conjunction with the inner hole of the annular positioning block 301. The filling head 17 also passes through the central through hole of the hollow rubber block 302. When the hydraulic rod 9 drives the filling head 17 to complete filling and move upward, the inner wall of the hollow rubber block 302 scrapes the outer wall of the filling head 17.

[0026] The stirring and cleaning assembly 2 includes a first motor 201 fixedly mounted on a support platform 211. The output shaft of the first motor 201 is fixedly connected to the upper end of a stirring rod 212. A stirring paddle 204 is detachably connected to the lower end of the stirring rod 212. The stirring rod 212 passes through the central hole of a round cover 202 and extends into the interior of a storage tank 203. A T-slot 208 is provided on the side wall of the lower end of the stirring rod 212. The stirring and cleaning assembly 2 also includes a cleaning connecting rod 206. An arc-shaped rubber strip 205 is fixedly connected to the end of the connecting rod 206. The curvature of the 5-inch rod matches the inner wall curvature of the storage tank 203. A T-shaped block 207 is fixedly connected to the upper end of the connecting rod 206. When the storage tank 203 needs to be cleaned, the stirring paddle 204 is removed from the stirring rod 212, and the T-shaped block 207 on the connecting rod 206 is slidably inserted into the T-groove 208 of the stirring rod 212. Then, the connecting piece 209 is used to cover the connection between the T-shaped block 207 and the stirring rod 212, and the bolt 210 is threaded through the connecting piece 209 and the stirring rod 212 to lock and fix the connecting rod 206 and the stirring rod 212.

[0027] During the filling operation, the first motor 201 drives the stirring rod 212 and the stirring paddle 204 to rotate, which is used to stir the liquid in the storage tank 203. When cleaning is required, the stirring paddle 204 is replaced with a cleaning part consisting of a connecting rod 206 and an arc-shaped rubber strip 205. The first motor 201 is started, and the stirring rod 212 drives the arc-shaped rubber strip 205 to rotate, so that the arc-shaped rubber strip 205 can closely contact and scrape the entire inner wall of the storage tank 203.

[0028] To further optimize this technical solution, this embodiment also provides the following preferred solutions.

[0029] As a preferred embodiment, in order to enhance the structural stability of the scraping assembly 3, the scraping assembly 3 further includes a support block 304 fixedly mounted on the circular bracket 1, and a connecting block 303 for connection. The annular positioning block 301 and the hollow rubber block 302 are fixedly connected to the support block 304 through the connecting block 303, so as to ensure the positional accuracy and structural rigidity of the scraping assembly 3 during the reciprocating motion of the filling head 17.

[0030] As a preferred embodiment, in order to achieve reliable detachable fixing between the connecting rod 206 and the stirring rod 212, the stirring and cleaning assembly 2 also includes a connecting piece 209 and a bolt 210. The connecting piece 209 is used to cover and limit the T-shaped block 207 that has been inserted into the T-slot 208. The bolt 210 passes through the connecting piece 209 and is threadedly connected to the stirring rod 212 to securely lock the connecting rod 206 onto the stirring rod 212.

[0031] As a preferred solution, in order to improve the cleaning effect of the inner wall of the storage tank 203, the outer edge contour of the arc-shaped rubber strip 205 is processed into an arc shape that matches the curvature of the inner wall of the storage tank 203, so that the arc-shaped rubber strip 205 can fit tightly against the inner wall surface throughout during cleaning rotation.

[0032] As a preferred embodiment, in order to ensure the stable placement and internal cleanliness of the storage tank 203, the equipment also includes a support platform 211 fixed on the main frame. The bottom of the storage tank 203 rests on the upper surface of the support platform 211, and a removable round cover 202 is provided at the top opening of the storage tank 203.

[0033] As a preferred embodiment, in order to achieve stable bearing and precise positioning of the reagent kit during the transport and positioning process, a support plate 15 for bearing the reagent kit is fixedly connected to the upper surface of the turntable 14, and an arc-shaped notch 16 for inserting and positioning the reagent kit is opened in the circumference of the turntable 14. The device also includes a circular bracket 1 for rotating support of the entire turntable 14, and a support leg 7 for ground support of the second motor 6 and the conveyor belt 5.

[0034] According to any of the aforementioned schemes, as a further preferred embodiment, side plates 4 are fixedly connected to both sides of the conveyor belt 5 along its length direction. The height of the side plates 4 is higher than that of the reagent kit to be conveyed, which is used to guide the reagent kit and prevent it from tipping over during the movement of the conveyor belt 5.

[0035] As a preferred solution, in order to achieve stable lifting and dust prevention of the filling head 17, the filling head 17 is fixedly connected to the end of the hydraulic rod 9 through a hanging plate 13. The hanging plate 13 serves as the force transmission component between the two. The equipment also has a dust cover 8 directly above the filling head 17 to cover the filling area.

[0036] Working Principle: During operation, the liquid to be filled is first injected into the storage tank 203 through the inlet, and the round cover 202 is placed on top. The first motor 201 is started, and the output shaft of the first motor 201 drives the stirring rod 212 and the stirring paddle 204 at the end to rotate, pre-stirring the liquid in the storage tank 203. At the same time, the empty test kit is placed on the conveyor belt 5, and the second motor 6 is started. The conveyor belt 5 runs smoothly under the support of the support legs 7, conveying the test kit forward on the linear track. The side plates 4 on both sides of the conveyor belt 5 guide the test kit and prevent it from tipping over. When the test kit is conveyed to the end of the conveyor belt 5, it is transferred to the support plate 15 on the upper surface of the turntable 14. At this time, the third motor 10 is started, and the third motor 10 drives the turntable 14 to rotate on the circular bracket 1. The test kit is precisely positioned directly below the filling head 17 under the holding of the arc-shaped notch 16. Subsequently, the hydraulic rod 9 drives the hanging plate 13 to move the filling head 17 down vertically. Guided by the annular positioning block 301, the filling head 17 slides and extends into the reagent kit. The solenoid valve 12 opens, and liquid is injected into the reagent kit through the tube 11. After quantitative filling is completed, the solenoid valve 12 closes, and the hydraulic rod 9 drives the filling head 17 to rise. During the rise, the outer wall of the filling head 17 passes through the hollow rubber block 302, and the inner wall of the hollow rubber block 302 scrapes against the outer wall of the filling head 17, scraping residual reagent back into the reagent kit. The turntable 14 continues to rotate, refilling the filled reagent kit. The reagent kit is sent out and the next empty reagent kit is sent to the filling station, and the cycle repeats. When the storage tank 203 needs to be cleaned, the stirring paddle 204 is removed first, and then the T-shaped block 207 on the connecting rod 206 is slidably fitted into the T-shaped groove 208 of the stirring rod 212 and locked by the connecting piece 209 and the bolt 210. The first motor 201 is started, and the stirring rod 212 drives the arc-shaped rubber strip 205 at the end of the connecting rod 206 to rotate, scraping and cleaning the inner wall of the storage tank 203.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filling device for an SPR test kit, comprising: The container (203), the conveyor belt (5) for transporting the reagent kit, the second motor (6), the turntable (14) for positioning the reagent kit and the third motor (10), the hydraulic rod (9) for driving the filling action, the filling head (17) for performing the filling, the tube (11) for transporting the reagent and the solenoid valve (12) for controlling the filling amount. Its features are, It also includes a scraping assembly (3) and a mixing and cleaning assembly (2); The scraping assembly (3) includes an annular positioning block (301) and a hollow rubber block (302). The filling head (17) is arranged to slide vertically inside the annular positioning block (301) under the drive of the hydraulic rod (9) and pass through the hollow rubber block (302). The stirring and cleaning assembly (2) includes a first motor (201), a stirring rod (212) that is drivenly connected to the first motor (201), and a stirring paddle (204) disposed at the end of the stirring rod (212); the stirring and cleaning assembly (2) also includes a connecting rod (206) detachably mounted on the stirring rod (212), and an arc-shaped rubber strip (205) is provided at the end of the connecting rod (206); a T-shaped block (207) is provided on the connecting rod (206), and a T-shaped groove (208) that slides with the T-shaped block (207) is provided on the stirring rod (212).

2. The filling equipment for an SPR detection kit according to claim 1, characterized in that: The scraping assembly (3) further includes a support block (304) and a connecting block (303); the support block (304) supports and fixes the annular positioning block (301) and the hollow rubber block (302) through the connecting block (303).

3. The filling equipment for an SPR detection kit according to claim 1, characterized in that: It also includes a connecting piece (209) and a bolt (210) for fixing the connecting rod (206) to the stirring rod (212).

4. The filling equipment for an SPR detection kit according to claim 1, characterized in that: The curvature of the arc-shaped rubber strip (205) is adapted to the inner wall of the storage tank (203).

5. The filling equipment for an SPR detection kit according to claim 1, characterized in that: It also includes a support platform (211) for supporting the storage tank (203), and the top of the storage tank (203) is covered with a round cover (202).

6. The filling equipment for an SPR detection kit according to claim 1, characterized in that: The turntable (14) is provided with a support plate (15) for receiving the reagent kits transported from the conveyor belt (5), and the turntable (14) is provided with an arc-shaped notch (16) for positioning the reagent kits in the circumferential direction; the device also includes a circular bracket (1) for supporting the turntable (14) and a support leg (7) for supporting the conveyor belt (5).

7. The filling equipment for an SPR detection kit according to claim 1, characterized in that: The conveyor belt (5) is provided with side plates (4) on both sides to prevent the reagent kit from tipping over.

8. The filling equipment for an SPR detection kit according to claim 1, characterized in that: The filling head (17) is connected to the hydraulic rod (9) via a hanging plate (13); the device also includes a dust cover (8) disposed above the filling head (17).

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