Auxiliary positioning device for detecting lactamase in raw milk

Abstract

The utility model discloses an auxiliary positioning device for detecting lactamase in raw milk, and particularly relates to the technical field of tools for detecting lactamase in raw milk, the auxiliary positioning device comprises a fixed disc, a measuring scale, a sliding block and a feeding pipe; an accommodating through groove is formed in the fixed disc, the measuring scale is fixedly mounted in the accommodating through groove, a sliding groove is formed in the middle of the measuring scale, and the sliding block is mounted in the sliding groove in a sliding manner; the sliding block is provided with a feeding port, and the feeding pipe is fixedly installed below the sliding block and communicates with the feeding port. By using the auxiliary positioning device, the cup and the dish can be accurately placed at a specified position, and when the cup and the dish are in contact with a culture medium, the cup and the dish do not topple over, and experimental results are not influenced.

Description

TECHNICAL FIELD

[0001] The application relates to a lactamase detection tool for raw cow milk, in particular to an auxiliary positioning device for detecting lactamase in raw cow milk. BACKGROUND

[0002] When detecting beta-lactamase in raw cow milk, a position for positioning is marked in advance on a 96mm flat dish to prevent an 8mm-diameter cup. Usually, an experimenter places an antibiotic-treated cup (Oxford cup) in the culture medium by using tweezers. In this process, the experimenter places four cups at 1 / 4 of two vertical diameters in the culture dish by using tweezers.

[0003] However, the traditional method has the following disadvantages: 1. The manual positioning method has low precision, and the overlapping of the inhibition zones or the too marginal inhibition zones may affect the measurement of the inhibition zone diameter. 2. The cup is prone to be tilted during placement, which affects the experimental results. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides an auxiliary positioning device for detecting lactamase in raw cow milk, which can accurately place the cup at the specified position, and the cup does not tilt when contacting the culture medium, so that the experimental results are not affected.

[0005] The utility model aims to realize the following technical scheme:

[0006] An auxiliary positioning device for detecting lactamase in raw cow milk comprises a fixed disc, a measuring scale, a sliding block and a feeding pipe.

[0007] The fixed disc is provided with a containing groove, the measuring scale is fixedly installed in the containing groove, the middle part of the measuring scale is provided with a sliding groove, and the sliding block is slidingly installed in the sliding groove; the sliding block is provided with a feeding port, the feeding pipe is fixedly installed below the sliding block and communicates with the feeding port.

[0008] The scale on the measuring scale is used for assisting the experimenter to implement accurate positioning and reducing the error of manual judgment. Meanwhile, after the cup is placed in the feeding pipe and then placed in the culture medium, the cup can be prevented from tilting when being clamped and placed.

[0009] Preferably, the inner side of the feeding port is provided with an indicating needle, and the indicating needle is located at the upper end of the measuring scale.

[0010] Preferably, the utility model further comprises a culture dish positioning mechanism; the side end of the fixed disc is provided with a sliding groove; the culture dish positioning mechanism comprises a sliding rod, an arc-shaped positioning plate and an elastic spring, one end of the elastic spring is fixed with the sliding rod, the other end is fixed with the groove bottom of the sliding groove, and the arc-shaped positioning plate is fixed with the tail end of the sliding rod.

[0011] The culture dish positioning mechanism is fixed to the culture dish peripheral wall, so that the starting point of the measuring scale is at the center of the culture dish.

[0012] Preferably, the middle part of the fixing disc is provided with a fixing hole, and the operating rod is detachably installed in the fixing hole.

[0013] Preferably, the operating rod is provided with a threaded section, and the operating rod is provided with a locking ring, and the locking ring and the threaded section are screwed together.

[0014] Preferably, the upper end of the operating rod is provided with a handle.

[0015] Preferably, the end of the operating rod away from the handle is provided with a fixing block, and the fixing block is abutted against the fixing disc.

[0016] Compared with the prior art, the technical scheme of the present application has the following advantages or beneficial effects:

[0017] 1. After the throwing position of the cup and dish is determined with the help of the measuring scale, the error caused by manual judgment can be avoided, and the measurement result of the inhibition zone is more accurate.

[0018] 2. The cup and dish are thrown into the culture dish through the feeding pipe, so as to avoid the inclination caused by the angle during the placing process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of an auxiliary positioning device for detecting lactamase in raw cow milk (with a culture dish);

[0020] Figure 2 It is a perspective view of an auxiliary positioning device for detecting lactamase in raw cow milk (without a culture dish);

[0021] Figure 3 It is a top view of an auxiliary positioning device for detecting lactamase in raw cow milk;

[0022] Figure 4 It is a bottom view of an auxiliary positioning device for detecting lactamase in raw cow milk.

[0023] In the figure: 1, handle; 2, locking ring; 3, sliding block; 4, feeding pipe; 5, measuring scale; 6, arc-shaped positioning plate; 7, sliding rod; 8, fixing disc; 9, sliding groove; 10, indicating needle; 11, fixing block. DETAILED DESCRIPTION

[0024] In the following, the embodiments of the present application will be described in detail with reference to the accompanying drawings and embodiments, so that how the present application applies technical means to solve technical problems and achieves corresponding technical effects can be fully understood and implemented. The embodiments of the present application and various features in the embodiments can be combined with each other without conflict, and the formed technical solutions are all within the protection scope of the present application.

[0025] It should be clear that the embodiments described below are only some of the embodiments of the present application, not all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application. Embodiments

[0026] The present embodiment elaborates the scheme of simulating the production of egg field:

[0027] A kind of auxiliary positioning device for detecting lactamase in raw milk, including fixed disc 8, measuring scale 5, sliding block 3 and feeding pipe 4;

[0028] Fixed disc 8 is equipped with containing through groove, measuring scale 5 is fixedly installed in containing through groove, and the middle part of measuring scale 5 is equipped with sliding slot, and sliding block 3 is slidably installed in sliding slot;Sliding block 3 is equipped with feeding port, and feeding pipe 4 is fixedly installed below sliding block 3 and communicates with feeding port.

[0029] The connection relationship and working principle of fixed disc 8, measuring scale 5, sliding block 3 and feeding pipe 4 are as follows:

[0030] As shown in Figure 2 and Figure 3 , measuring scale 5 is installed in containing through groove on fixed disc 8. Experimental personnel can drive feeding pipe 4 fixed at the lower end thereof to the appropriate position according to the size of different culture dishes by pushing sliding block 3, and then clamp the cup and dish and place it from feeding pipe 4 into the culture medium.

[0031] In the above process, as shown in Figure 3 , the inside of feeding port is equipped with indicating needle 10, and indicating needle 10 is located at the upper end of measuring scale 5. Experimental personnel accurately obtain the position of feeding pipe 4 through indicating needle 10, and moving feeding pipe 4 is through sliding block 3.

[0032] In the above use process of measuring scale 5, since the end of measuring scale 5 close to the center of fixed disc is not from the center, the starting scale of measuring scale 5 is not 0, and the error of this section can be supplemented after pre-measurement: for example, the starting scale of measuring scale 5 is 1.5 cm.

[0033] The present embodiment also includes culture dish positioning mechanism;

[0034] The fixed disc 8 is provided with a sliding groove at the side end; the culture dish positioning mechanism comprises a sliding rod 7, an arc-shaped positioning plate 6 and an elastic spring, one end of the elastic spring is fixed with the sliding rod 7, the other end is fixed with the groove bottom of the sliding groove, and the arc-shaped positioning plate 6 and the end of the sliding rod 7 are fixed. The fixed disc 8 is provided with a fixed hole in the middle, and the fixed hole is detachably provided with an operating rod.

[0035] The culture dish positioning mechanism is used to keep the center of the fixed disc 8 consistent with the center of the culture dish, so in actual application, the specifications of the four elastic springs should be kept consistent.

[0036] In the embodiment, the operating rod is provided with a threaded segment, the operating rod is provided with a locking ring 2, and the locking ring 2 and the threaded segment are screwed together. The upper end of the operating rod is provided with a handle 1. The end of the operating rod away from the handle 1 is provided with a fixed block 11, and the fixed block 11 is tightly contacted with the fixed disc 8.

[0037] Through the cooperation between the locking ring 2 and the threaded segment, the operating rod and the fixed disc 8 can be fixed, so as to be more convenient for the experimenters to take and use.

Claims

1. A device for detecting the presence of a lactamase in raw cow's milk, characterized in that it comprises: Including fixed disc (8), measuring scale (5), sliding block (3) and feeding pipe (4); The fixed disc (8) is provided with a containing groove, the measuring scale (5) is fixedly installed in the containing groove, and the middle part of the measuring scale (5) is provided with a sliding groove (9); the sliding block (3) is slidingly installed in the sliding groove (9); The sliding block (3) is provided with a feeding port, the feeding pipe (4) is fixedly installed below the sliding block (3) and communicates with the feeding port.

2. A device for detecting the presence of a lactamase in raw milk according to claim 1, wherein The inside of the feeding port is provided with an indicating needle (10), and the indicating needle (10) is located on the upper end of the measuring scale (5).

3. A device for detecting the presence of a lactamase in raw milk according to claim 1, wherein Also including a culture dish positioning mechanism; The side end of the fixed disc (8) is provided with a sliding groove; The culture dish positioning mechanism comprises a sliding rod (7), an arc-shaped positioning plate (6) and an elastic spring, one end of the elastic spring is fixed with the sliding rod (7), the other end is fixed with the groove bottom of the sliding groove, and the arc-shaped positioning plate (6) and the tail end of the sliding rod (7) are fixed.

4. A device for detecting the presence of a lactamase in raw milk according to claim 1, wherein The middle part of the fixed disc (8) is provided with a fixing hole, and the operation rod is detachably installed in the fixing hole.

5. A device for detecting the presence of a lactamase in raw milk according to claim 4, wherein The operation rod is provided with a threaded section, the operation rod is provided with a locking ring (2), and the locking ring (2) and the threaded section are screw-connected.

6. A device for detecting the presence of a lactamase in raw milk according to claim 4, wherein The upper end of the operation rod is provided with a handle (1).

7. A device for detecting the presence of a lactamase in raw milk according to claim 4, wherein The end of the operation rod away from the handle (1) is provided with a fixed block (11), and the fixed block (11) is tightly abutted with the fixed disc (8).

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