An apparatus for detecting enrofloxacin contaminant in animal-derived food

Abstract

The utility model discloses an animal source food enrofloxacin pollutant detection instrument, through the cooperation of screw rod module and storage component, has realized the recovery and stable storage after reagent card detection, if the subsequent dispute appears, can find corresponding reagent card through detachable storage box, can verify the real state of chromogenic band, also can verify whether reagent card itself exists quality defect, has promoted the quality of detection work. Through the waterproof sticker on waterproof roll material is pasted in the sample hole place of reagent card, avoided the sample hole to be polluted, and then interfered chromogenic band, improved the reliability of storage. Through the tray movement of screw rod module drive, can automatically send reagent card from the entrance to color detection component, closed component and the below of storage component, through electric push rod cooperation tray through -hole, automatically reagent card top -in storage box, improved the automation level, reduced the labor intensity of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, specifically to an instrument for detecting enrofloxacin contaminants in animal-derived food. Background Technology

[0002] Enrofloxacin is a broad-spectrum antibiotic, and the residue levels of enrofloxacin in animal-derived foods such as meat, eggs, and dairy products are strictly limited. Therefore, the detection of enrofloxacin contaminant residues in animal-derived foods is a crucial aspect of food safety supervision. Currently, the main technology for detecting enrofloxacin in animal-derived foods is the colloidal gold method based on the principle of immunochromatography. Its core component is a colloidal gold reagent card containing a specific antigen-antibody reaction system. In use, the animal-derived food is first prepared into a corresponding solution to form a sample, which is then added to the sample wells of the reagent card. When the enrofloxacin in the sample undergoes a specific binding reaction with the colloidal gold-labeled antibody on the reagent card, it changes the color of the colorimetric band on the reagent card, thus enabling the detection of enrofloxacin.

[0003] Existing enrofloxacin detection instruments only read and detect the color of the reagent card's colorimetric bands. They determine the presence of enrofloxacin residue by reading the color of these bands, thus enabling the detection of enrofloxacin using the reagent card. However, the reagent cards are typically discarded after testing. In case of disputes (e.g., food manufacturers questioning the results), the corresponding reagent card cannot be retrieved for retesting. This makes it impossible to verify the state of the colorimetric bands or to check for quality defects in the reagent card itself, thus reducing the quality of the testing process. Therefore, there is a need to design an enrofloxacin contaminant detection instrument that can recycle the reagent cards. Utility Model Content

[0004] The purpose of this invention is to provide an instrument for detecting enrofloxacin contaminants in animal-derived foods, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an instrument for detecting enrofloxacin contaminants in animal-derived food, characterized in that: it includes a housing with a lead screw module installed inside, the lead screw module being able to drive a tray carrying a reagent card to move, and the housing being provided with a reagent card inlet, a reagent card color detection component, a sealing component and a storage component in sequence along the tray movement direction; The entrance is detachably secured with a protective cover. The sealing assembly allows the waterproof stickers of the waterproof roll to be affixed to the sample hole of the reagent card. The waterproof roll is installed inside the sealing assembly and includes release paper with multiple waterproof stickers adhered to it. The storage assembly includes a storage box with one end open, which is detachably fixed to the housing. A one-way locking pin is installed at the opening. In the free state, the one-way locking pin can prevent the reagent card in the storage box from falling out. An electric push rod is fixed at the bottom of the housing. A through hole is opened under the tray. The output end of the electric push rod can pass through the through hole and push the reagent card into the storage box.

[0006] Preferably, the enclosed assembly includes a raw material roll and a recovery roll, which are rotatably disposed within the enclosed housing. The enclosed housing is fixed to the housing. A waterproof roll is sleeved on the raw material roll, and the movable end of the waterproof roll passes around the peeling knife and is fixed to the recovery roll. The peeling knife is fixed to the housing, and the release paper on both sides of the peeling knife forms an acute angle with the opening of the acute angle facing the inlet direction. The recovery roll is the power input shaft.

[0007] Preferably, a motor is fixed on the housing, and a reel is fixed on the output shaft of the motor.

[0008] Preferably, a baffle is fixed inside the enclosed shell, and the baffle and the peeling knife are arranged opposite to each other, allowing waterproof roll material to pass through between the baffle and the peeling knife.

[0009] Preferably, the side of the enclosed shell is detachably fixed with a compartment door, which allows the waterproof roll material to be replaced after the compartment door is opened.

[0010] Preferably, each waterproof sticker on the waterproof roll is printed with a different code.

[0011] Preferably, a pressure plate is slidably provided inside the storage box, and a compression spring is provided between the pressure plate and the closed end of the storage box.

[0012] Preferably, the mounting base of the one-way locking pin is fixed to the outside of the storage box.

[0013] Preferably, the housing is fixed with a guide groove, the bottom of the storage box can be inserted into the guide groove, and a spring pin is installed on the housing. The pin of the spring pin can contact the top surface of the mounting seat of the one-way locking pin. In the free state, the spring pin can prevent the mounting seat of the one-way locking pin from rising.

[0014] Preferably, handles are fixed on both sides of the housing.

[0015] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the lead screw module and the storage component, the recycling and stable storage of the reagent card after testing are realized. If a dispute arises later, the corresponding reagent card can be found through the detachable storage box, which can verify the true state of the color development strip and verify whether the reagent card itself has quality defects, thus improving the quality of the testing work.

[0016] By attaching the waterproof sticker of the waterproof roll material to the sample well of the reagent card, the sample well is prevented from being contaminated, which could interfere with the color development strips and improve the reliability of storage.

[0017] Driven by a lead screw module, the tray can be moved automatically, and the reagent cards can be delivered from the inlet to the color detection component, sealing component and storage component. The electric push rod, in conjunction with the tray through hole, automatically pushes the reagent cards into the storage box, which improves the level of automation and reduces the labor intensity of manual operation.

[0018] By integrating the reagent card inlet, color detection component, sealing component, storage component and lead screw module into the same housing, the structure is compact and the functions are complete, making it easy to transport and operate. Attached Figure Description

[0019] Figure 1 This is a first-angle isometric view of the present invention, with the protective cover closed; Figure 2 This is a second-angle isometric view of the present invention, with the protective cover open; Figure 3 The third-angle isometric view of this utility model shows the color detection component, sealing component, and storage component removed. Figure 4 This is the fourth-angle isometric view of the present invention, with the compartment door and storage components removed; Figure 5 For the present utility model Figure 4 A magnified view of part A; Figure 6 This is a cross-sectional view of the storage box of this utility model.

[0020] In the diagram: 101, reagent card; 102, housing; 103, lead screw module; 104, tray; 105, inlet; 106, color detection component; 107, protective cover; 108, waterproof roll material; 109, guide groove; 110, color developing strip; 111, sample hole; 112, through hole; 113, handle; 200, sealing component; 201, raw material roll; 202, recycling roll; 203, sealing shell; 204, peeling knife; 205, motor; 206, baffle; 207, door; 300, storage component; 301, storage box; 302, one-way locking pin; 303, electric push rod; 304, pressure plate; 305, compression spring; 306, locking tongue; 307, spring; 308, mounting base; 400, spring pin; 401, pin; 402, sleeve; 403, handle. 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] This utility model provides a technical solution: an instrument for detecting enrofloxacin contaminants in animal-derived foods, such as... Figure 1-4 As shown, in order to integrate the color reading and recycling functions of reagent card 101, a housing 102 is included, and a lead screw module 103 (shown in Figure 1) is installed inside the housing 102. Figure 3 In this embodiment, the lead screw module 103 drives the tray 104 to move, and the tray 104 can carry the reagent card 101. The lead screw module 103 is an existing product, including a mounting base and a lead screw, optical shaft, motor and slide table mounted on the mounting base. The slide table is threaded to the lead screw and slidably mounted on the optical shaft. The motor drives the lead screw to rotate, thereby driving the slide table to move along the optical shaft. In this embodiment, the mounting base is fixed in the housing 102, the motor is fixed in the housing 102, and the tray 104 is fixed on the slide table. When the motor starts, it drives the tray 104 to move through the slide table. The housing 102 is arranged in sequence along the moving direction of the tray 104, including the reagent card 101 inlet 105, the reagent card 101 color detection component 106, the sealing component 200 and the storage component 300. The reagent card 101 color reading component 106 is a prior art, including a color sensor, a controller and a screen. The color sensor reads the color of the color stripe 111 of the reagent card 101, and then sends the color information to the controller. After processing by the controller, it is displayed on the screen.

[0023] During testing, the sample is first added to the sample hole 111 of the reagent card 101. After the color developing strip 111 of the reagent card 101 shows color, the protective cover 107 is opened, the reagent card 101 is placed in the tray 104, and then the protective cover 107 is closed. Then the instrument is started, and the lead screw module 103 pushes the tray 104 and the reagent card 101 under the color reading component 106 to read the color information of the reagent card 101.

[0024] like Figure 1 , 4 As shown in Figure 5, a protective cover 107 is detachably fixed at the inlet 105 to facilitate the closure of the color-developing strip 110. The closure assembly 200 can hold the waterproof roll 108 (shown in Figure 5) inside. Figure 5The waterproof sticker on the reagent card 101 is affixed to the color developing strip 110. The waterproof roll 108 is installed inside the sealing assembly 200. In this embodiment, the waterproof roll 108 includes release paper and multiple waterproof stickers adhered to the release paper. The release paper is an existing substrate paper that works with adhesive materials such as tape and labels.

[0025] After the color reading of reagent card 101 is completed, the lead screw module 103 sends reagent card 101 to the sealing component 200. The sealing component 200 affixes the waterproof sticker on the waterproof roll 108 to the color developing strip 110 of reagent card 101 to prevent the color developing strip 110 from being contaminated and thus interfering with the color developing strip 111.

[0026] like Figure 2 , 3 As shown in Figure 6, to facilitate the storage of tested reagent cards 101, the storage assembly 300 includes a storage box 301 with one end open. The storage box 301 is detachably fixed to the housing 102, and a one-way locking pin 302 is installed at its opening. The one-way locking pin 302 is a commonly used one-way locking device, such as... Figure 6 As shown, the one-way locking pin 302 includes a locking tongue 306, a mounting base 308, and a spring 307. The spring 307 controls the operation of the inclined locking tongue 306. In this embodiment, the mounting base 308 of the one-way locking pin 302 is fixed to the storage box 301, the locking tongue 306 is installed inside the mounting base 308, and the spring 307 is sleeved on the outer surface of the locking tongue 306. One end of the spring 307 is connected to the locking tongue 306, and the other end is connected to the mounting base 308. In the free state, under the action of the spring 307, the locking tongue 306 extends out of the mounting base 308, so that the one-way locking pin 302 can prevent the reagent card 101 in the storage box 301 from falling out. An electric push rod 303 (shown in the figure) is fixed to the bottom of the housing 102. Figure 3 , Figure 4 In the middle), a through hole 112 is provided under the tray 104. After the tray 104 moves under the storage box 301, the output end of the electric push rod 303 can pass through the through hole 112 and push the reagent card 101 in the tray into the storage box 301.

[0027] After the reagent card 101 completes the sealing process, the lead screw module 103 sends the reagent card 101 above the electric push rod 303. Then, the electric push rod 303 extends, passes through the through hole 112, and lifts the reagent card 101. Subsequently, the reagent card 101 presses against the inclined surface of the locking tongue 306, causing the locking tongue 306 to retract into the mounting base 308, and the reagent card 101 enters the storage box 301. Then, the locking tongue 306 extends again under the action of the spring 307, preventing the reagent card 101 from falling out of the storage box 301. Then, the electric push rod 303 shortens and returns to its initial height, completing the storage process of the reagent card 101.

[0028] In summary, through the cooperation of the lead screw module 103 and the storage component 300, the recycling and stable storage of the reagent card 101 after testing are realized. If a dispute arises later, the corresponding reagent card 101 can be found through the detachable storage box 301, which can verify the true state of the color development strip 111 of the reagent card 101 and verify whether the reagent card 101 itself has quality defects, thus improving the quality of the testing work.

[0029] By attaching the waterproof sticker on the waterproof roll 108 to the color development strip 110 of the reagent card 101, the color development strip 110 is prevented from being contaminated, which would interfere with the color development strip 111, thus improving the reliability of storage.

[0030] Driven by the lead screw module 103, the tray 104 can be moved automatically, and the reagent card 101 can be automatically delivered from the inlet 105 to the color detection component 106, the sealing component 200 and the storage component 300. The electric push rod 303, in conjunction with the through hole 112 of the tray 104, automatically pushes the reagent card 101 into the storage box 301, which improves the level of automation and reduces the labor intensity of manual operation.

[0031] By integrating the reagent card 101 inlet 105, color detection component 106, sealing component 200, storage component 300 and lead screw module 103 into the same housing 102, the structure is compact and the functions are complete, making it easy to transport and operate.

[0032] like Figure 4 , 5 As shown, the specific structure of the sealing component 200 is as follows: the sealing component 200 includes a raw material roll 201 and a recovery roll 202. The raw material roll 201 and the recovery roll 202 are rotatably disposed inside the sealing shell 203. The sealing shell 203 is fixed on the housing 102. A waterproof roll material 108 is sleeved on the raw material roll 201. The movable end of the waterproof roll material 108 passes around the peeling knife 204 and is fixed to the recovery roll 202. The peeling knife 204 is fixed on the housing 102. The included angle formed by the release paper on both sides of the peeling knife 204 is an acute angle. The opening of the acute angle faces the inlet 105. The recovery roll 202 is the power input shaft.

[0033] After the test is completed, the lead screw module 103 sends the reagent card 101 to the peeling knife 204. During the movement of the tray 104 and the reagent card 101, the recovery reel 202 rotates, winding the waterproof roll 108 onto the recovery reel 202, thereby driving the waterproof roll 108 to move and release it from the raw material reel 201. This, in turn, moves the release paper and waterproof sticker. Because the waterproof sticker is relatively hard and not easily deformed, when the waterproof roll 108 passes through the peeling knife 204, the sharp edge of the peeling knife 204... Due to the angle, the release paper of the waterproof roll 108 will bypass the peeling knife 204 and be recycled by the recycling roll 202, while the waterproof sticker cannot bypass the peeling knife and continues to move in a straight line, thus creating an initial separation between it and the release paper, and then sticking to the reagent card 101. Since the reagent card 101 is also moving, the waterproof sticker will gradually separate from the release paper as the reagent card 101 moves, until it is completely stuck to the color developing strip 110 of the reagent card 101, and moves together with the reagent card 101 to the storage box 301.

[0034] like Figure 1 As shown, the specific driving form of the recycling reel 202 is that a motor 205 is fixed on the housing 102, and the recycling reel 202 is fixed on the output shaft of the motor 205. The motor 205 can drive the recycling reel 202 to rotate.

[0035] like Figure 4 , 5 As shown, in order to improve the accuracy of peeling off the waterproof sticker, a baffle 206 is fixed inside the closed shell 203. The baffle 206 and the peeling knife 204 are arranged opposite to each other. The waterproof roll 108 can pass between the baffle 206 and the peeling knife 204. When the waterproof sticker is peeled off from the release paper, the baffle 206 blocks the other side of the waterproof sticker (the side that does not contact the release paper), reducing the warping and deformation of the waterproof sticker and improving the accuracy of peeling off the waterproof sticker.

[0036] like Figure 2 As shown, in order to facilitate the replacement of the waterproof membrane 108, a compartment door 207 is detachably fixed on the side of the closed shell 203. In this embodiment, the compartment door 207 is connected to the closed shell 203 by screws. The waterproof membrane 108 can be replaced after opening the compartment door 207.

[0037] To facilitate the management of reagent cards 101 entering the storage component 300, each waterproof sticker on the waterproof roll 108 is printed with a different code, so that the reagent cards 101 entering the storage component 300 can be assigned a different number for easy subsequent management.

[0038] like Figure 6As shown, to prevent the reagent card 101 inside the storage box 301 from tilting, a pressure plate 304 is slidably disposed inside the storage box 301. A compression spring 305 is disposed between the pressure plate 304 and the closed end of the storage box 301. The compression spring 305 can push the pressure plate 304 to move towards the open end of the storage box 301, thereby causing the reagent card 101 under the pressure plate 304 to move. Figure 6 (Before any reagent card 101 has entered the storage box 301), the reagent card 101 is pressed against the one-way locking pin 302, thereby limiting the range of motion of the reagent card 101 and preventing the reagent card 101 from tilting inside the storage box 301.

[0039] like Figure 1 , 2 As shown in Figure 6, the detachable structure of the storage box 301 is as follows: the mounting base 308 of the one-way locking pin 302 is fixed to the outside of the storage box 301; a guide groove 109 is fixed on the housing 102; the bottom end of the storage box 301 can be inserted into the guide groove 109; a spring pin 400 is installed on the housing 102; the spring pin 400 is a commonly used positioning part, including a sleeve 402, a pin 401, a return spring (not shown in the figure), and a handle 403; the return spring keeps the pin 401 inside the sleeve 402 protruding; pulling the handle 403 can move the pin 401. The spring retracts into the sleeve 402. In this embodiment, the sleeve 402 is fixed to the housing 102. The pin 401 is located inside the sleeve 402. One end of the return spring is connected to the sleeve 402 and the other end is connected to the pin 401. The handle 403 is fixedly connected to the pin 401. In the free state, the return spring can allow the pin 401 of the spring pin 400 to extend out of the sleeve 402. The pin 401 extending out of the sleeve 402 can contact the top surface of the mounting seat 308 of the one-way locking pin 302, thereby allowing the spring pin 400 to prevent the mounting seat 308 of the one-way locking pin 302 from rising.

[0040] After the storage box 301 is inserted into the guide groove 109, the guide groove 109 can restrict the left, right and forward and backward movement of the storage box 301. The pin 401 of the spring pin 400 can extend to the top of the mounting base 308 of the one-way locking pin 302 and contact the top surface of the mounting base 308, thereby restricting the upward movement of the storage box 301. When disassembling the storage box 301, pull the handle 403 of the spring pin 400 to retract the pin 401 into the sleeve 402 and no longer contact the mounting base 308 of the one-way locking pin 302, so that the storage box 301 can move upward and separate from the housing 102.

[0041] like Figure 1 As shown, handles 113 are fixed on both sides of the housing 102 to facilitate moving the device.

[0042] Working process: During testing, first use reagent card 101 (including testing) according to existing technology. After waiting for the color development strip 111 of reagent card 101 to show color, open the protective cover 107, put reagent card 101 into tray 104, then close the protective cover 107, and then start the instrument. The lead screw module 103 pushes tray 104 and reagent card 101 under the color reading component 106 to read the color information of reagent card 101.

[0043] After the color reading of reagent card 101 is completed, the lead screw module 103 sends reagent card 101 to the sealing component 200. The sealing component 200 affixes the waterproof sticker on the waterproof roll 108 to the color developing strip 110 of reagent card 101 to prevent the color developing strip 110 from being contaminated and thus interfering with the color developing strip 111.

[0044] After the reagent card 101 completes the sealing process, the lead screw module 103 sends the reagent card 101 above the electric push rod 303. Then, the electric push rod 303 extends, passes through the through hole 112, and lifts the reagent card 101. Subsequently, the reagent card 101 presses against the inclined surface of the locking tongue 306, causing the locking tongue 306 to retract into the mounting base 308, and the reagent card 101 enters the storage box 301. Then, the locking tongue 306 extends again under the action of the spring 307, preventing the reagent card 101 from falling out of the storage box 301. Then, the electric push rod 303 shortens and returns to its initial height, completing the storage process of the reagent card 101.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An instrument for detecting enrofloxacin contaminants in animal-derived foods, characterized in that: The housing (102) includes a lead screw module (103) installed inside. The lead screw module (103) can drive the tray (104) carrying the reagent card (101) to move. The housing (102) is provided with an inlet (105) for the reagent card (101), a color detection component (106) for the reagent card (101), a sealing component (200) and a storage component (300) in sequence along the moving direction of the tray (104). A protective cover (107) is detachably fixed at the entrance (105). The sealing component (200) can attach the waterproof sticker of the waterproof roll (108) to the sample hole (111) of the reagent card (101). The waterproof roll (108) is installed inside the sealing component (200). The waterproof roll (108) includes release paper with multiple waterproof stickers adhered to it. The storage assembly (300) includes a storage box (301) with one end open. The storage box (301) is detachably fixed to the housing (102). A one-way locking pin (302) is installed at its opening. In the free state, the one-way locking pin (302) can prevent the reagent card (101) in the storage box (301) from falling out. An electric push rod (303) is fixed at the bottom of the housing (102). A through hole (112) is opened under the tray (104). The output end of the electric push rod (303) can pass through the through hole (112) and push the reagent card (101) into the storage box (301).

2. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 1, characterized in that: The enclosed assembly (200) includes a raw material roll (201) and a recycling roll (202). The raw material roll (201) and the recycling roll (202) are rotatably disposed inside the enclosed shell (203). The enclosed shell (203) is fixed on the shell (102). A waterproof roll material (108) is sleeved on the raw material roll (201). The movable end of the waterproof roll material (108) passes around the peeling knife (204) and is fixed on the recycling roll (202). The peeling knife (204) is fixed on the shell (102). The release paper on both sides of the peeling knife (204) forms an acute angle. The opening of the acute angle faces the inlet (105). The recycling roll (202) is the power input shaft.

3. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 2, characterized in that: A motor (205) is fixed on the housing (102), and a reel (202) is fixed on the output shaft of the motor (205).

4. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 2, characterized in that: A baffle (206) is fixed inside the closed shell (203). The baffle (206) and the peeling knife (204) are arranged opposite to each other, and the waterproof roll material (108) can pass through between the baffle (206) and the peeling knife (204).

5. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 2, characterized in that: The side of the enclosed shell (203) is detachably fixed with a compartment door (207), which allows the waterproof roll material (108) to be replaced after opening the compartment door (207).

6. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 1, characterized in that: Each waterproof sticker on the waterproof roll (108) is printed with a different code.

7. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 1, characterized in that: A pressure plate (304) is slidably disposed inside the storage box (301), and a compression spring (305) is disposed between the pressure plate (304) and the closed end of the storage box (301).

8. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 1, characterized in that: The mounting base (308) of the one-way locking pin (302) is fixed to the outside of the storage box (301).

9. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 8, characterized in that: A guide groove (109) is fixed on the housing (102). The bottom end of the storage box (301) can be inserted into the guide groove (109). A spring pin (400) is installed on the housing (102). The pin (401) of the spring pin (400) can contact the top surface of the mounting seat (308) of the one-way locking pin (302). In the free state, the spring pin (400) can prevent the mounting seat (308) of the one-way locking pin (302) from rising.

10. The instrument for detecting enrofloxacin contaminants in animal-derived food according to claim 1, characterized in that: Handles (113) are fixed on both sides of the housing (102).

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