Auxiliary sampling device for detecting microorganisms in samples

Abstract

The utility model relates to the field of microbial detection devices, and discloses an auxiliary sampling device for detecting microorganisms in samples, including a base, a buffer plate is provided on the upper surface of the base, baffles are fixedly connected to the left and right ends of the upper surface of the base, an L-shaped clamping frame is provided above the baffle, a triangular rod is fixedly connected to the side surface of the baffle close to the buffer plate, an air inlet is provided at the upper end of the side surface of the baffle close to the buffer plate, a moving unit is provided on the outside of the L-shaped clamping frame, a piston cylinder is fixedly connected to the front side surface of the baffle, and an L-shaped piston rod is inserted into the interior of the piston cylinder. In the utility model, the homogenizing bag can be quickly clamped and fixed by the cooperation of the L-shaped clamping frame, the triangular rod and the moving unit, and the bag mouth does not need to be bent to insert it into the fixing clamp to complete the fixation, so as to avoid the leakage of nutrient solution caused by excessive bending.

Description

Technical Field

[0001] The utility model relates to the field of microorganism detection devices, in particular to an auxiliary sampling device for detecting microorganisms in samples. Background Art

[0002] The sampling process is the first step in microbial detection and is also a key step that affects the test results. For the convenience of experimental operation, homogenizing bags are generally used as culture or dilution containers. During the sampling process, especially when adding the enrichment solution, the homogenizing bag needs to be placed firmly to prevent the enrichment solution from spilling and causing insufficient volume of the enrichment solution or causing cross contamination. Generally, an auxiliary sampling device is set to clamp and fix the homogenizing bag so that the homogenizing bag can be kept stably placed.

[0003] After searching, Chinese patent announcement number: CN216427254U discloses an auxiliary sampling device for detecting microorganisms in samples, including an auxiliary sampling device for detecting microorganisms in samples, which adopts a clamp-type device to effectively and firmly fix the homogenizing bag on the inside of the device, saving manpower and improving the efficiency of detection and sampling. A buffer structure is also provided, which can effectively play a buffering role when the homogenizing bag is clamped, protect the sample therein, and make the result more accurate.

[0004] However, in actual use, when clamping and fixing the bag mouth of the homogenizing bag, the bag mouth needs to be bent and inserted from the bottom end of the fixing clamp into the inside of the fixing clamp while one end of the fixing clamp is fixed. During the bending process, the homogenizing bag may be bent too much at the bag mouth due to staff error, which may cause leakage of the nutrient solution inside the homogenizing bag and affect the accuracy of sampling and detection. Therefore, an auxiliary sampling device for detecting microorganisms in samples is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an auxiliary sampling device for detecting microorganisms in samples, aiming to improve the problem in the prior art that the auxiliary sampling device needs to bend the edge of the homogenizing bag to complete the fixation when the homogenizing bag is placed on the base, which may cause leakage of nutrient solution.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an auxiliary sampling device for detecting microorganisms in a sample, comprising a base, a buffer plate is arranged on the upper surface of the base, baffles are fixedly connected to the left and right ends of the upper surface of the base, an L-shaped clamping frame is arranged above the baffle, a triangular rod is fixedly connected to the side surface of the baffle close to the buffer plate, an air intake port is opened at the upper end of the side surface of the baffle close to the buffer plate, a moving unit is arranged on the outer side of the L-shaped clamping frame, a piston cylinder is fixedly connected to the front side surface of the baffle, an L-shaped piston rod is inserted into the interior of the piston cylinder, and a connecting pipe is fixedly connected to the top of the piston cylinder.

[0007] As a further description of the above technical solution:

[0008] Slots are provided at both left and right ends of the upper surface of the base, a card slot is provided on the side surface of the slot away from the center of the base, a U-shaped through groove is provided inside the baffle, a spring is fixedly connected to the inner wall surface of the U-shaped through groove on one side close to the buffer plate, and a U-shaped card block is fixedly connected to the end of the spring away from the buffer plate.

[0009] As a further description of the above technical solution:

[0010] The moving unit includes a limit rod, which is fixedly connected to the upper surface of the baffle. A screw is rotatably connected to the center of the upper surface of the baffle. The top ends of the limit rod and the screw pass through the L-shaped clamping frame. The top end of the screw is fixedly connected to a handle.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the L-shaped clamping frame and the upper surface of the triangular rod are both fixedly connected with rubber pads, and the bottom end of the L-shaped clamping frame is arranged in an inclined structure.

[0013] As a further description of the above technical solution:

[0014] One end of the connecting pipe away from the piston cylinder penetrates the baffle plate, and the other end of the connecting pipe away from the piston cylinder is fixedly connected to the inner wall surface of one side of the air inlet away from the buffer plate.

[0015] As a further description of the above technical solution:

[0016] One end of the L-shaped piston rod away from the piston cylinder is fixedly connected to the outer surface of the buffer plate.

[0017] As a further description of the above technical solution:

[0018] The two ends of the U-shaped through groove away from the center of the base penetrate the baffle.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the U-shaped clamping block is in contact with the inner wall of the U-shaped through slot, and the bottom end of the U-shaped clamping block is clamped with the inside of the clamping slot.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the L-shaped clamping frame, the triangular rod and the moving unit are provided to cooperate, so that the homogenizing bag can be quickly clamped and fixed, and the bag mouth does not need to be bent to insert it into the fixing clamp to complete the fixation, thereby avoiding the leakage of nutrient solution due to excessive bending. In addition, the piston cylinder, the L-shaped piston rod and the connecting pipe are provided to generate suction at the air inlet to perform preliminary position limiting on the bag mouth, thereby reducing the difficulty of clamping and fixing.

[0023] 2. In the utility model, the baffle can be adjusted to different height limits through the cooperation of the slots, card slots, U-shaped through slots, springs and U-shaped card blocks, so that the auxiliary sampling device can be adapted to homogenizing bags of different specifications, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an auxiliary sampling device for detecting microorganisms in a sample proposed by the utility model;

[0025] Figure 2 The utility model proposes an auxiliary sampling device for detecting microorganisms in a sample Figure 1 Schematic diagram at part A;

[0026] Figure 3 A schematic diagram of a mobile unit of an auxiliary sampling device for detecting microorganisms in a sample proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the interior of a base and a baffle of an auxiliary sampling device for detecting microorganisms in a sample proposed by the utility model.

[0028] Legend:

[0029] 1. Base; 2. Buffer plate; 3. Baffle; 4. L-shaped clamping frame; 5. Triangle rod; 6. Air inlet; 701. Limit rod; 702. Screw rod; 703. Handle; 8. Piston cylinder; 9. L-shaped piston rod; 10. Connecting pipe; 11. Slot; 12. Card slot; 13. U-shaped through slot; 14. Spring; 15. U-shaped card block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 The utility model provides an embodiment: an auxiliary sampling device for detecting microorganisms in a sample, comprising a base 1, a buffer plate 2 is arranged on the upper surface of the base 1, the bottom end of the buffer plate 2 is fixedly connected with an elastic member, the bottom end of the elastic member is fixedly connected to the upper surface of the base 1, the buffer plate 2 is made of rubber material, when the homogenizing bag is placed on the base 1, the homogenizing bag will squeeze the buffer plate 2, and then squeeze the elastic member to generate elastic potential energy, through the cooperation of the elastic member and the buffer plate 2, the homogenizing bag can effectively play a buffering role when being clamped, protect the sample therein, and make the result more accurate, the left and right ends of the upper surface of the base 1 are fixedly connected with baffles 3, and the baffles 3 can limit the left and right sides of the homogenizing bag for protection.

[0032] Reference Figure 1-Figure 3 An L-shaped clamping frame 4 is arranged above the baffle 3, and a moving unit is arranged on the outer side of the L-shaped clamping frame 4. The moving unit includes a limit rod 701, and the limit rod 701 is fixedly connected to the upper surface of the baffle 3. A screw rod 702 is rotatably connected at the center of the upper surface of the baffle 3. The top ends of the limit rod 701 and the screw rod 702 both pass through the L-shaped clamping frame 4. The limit rod 701 can guide and limit the movement of the L-shaped clamping frame 4, so that the L-shaped clamping frame 4 can only perform linear motion in the up and down directions. A handle 703 is fixedly connected to the top end of the screw rod 702. Rotating the handle 703 can drive the screw rod 702 to rotate synchronously. When the screw 702 rotates, the L-shaped clamping frame 4 can be driven to move up under the limit of the limit rod 701. The L-shaped clamping frame 4 is fixedly connected to the upper surface of the triangle rod 5 and the lower surface of the triangle rod 5 is fixedly connected to the lower surface of the L-shaped clamping frame 4. The rubber pad can prevent the L-shaped clamping frame 4 from making hard contact with the bag opening of the homogenizing bag and causing damage to the homogenizing bag. The lower end of the L-shaped clamping frame 4 is arranged in an inclined structure. After the homogenizing bag is opened and placed on the buffer plate 2 and the bag opening is placed on the triangle rod 5, the handle 703 can be rotated to drive the L-shaped clamping frame 4 to move downward and cooperate with the triangle rod 5 to clamp and fix the bag opening. There is no need to bend the bag openings on the left and right ends and insert them into the inside of the fixing clamp to avoid excessive bending of the homogenizing bag due to bending of the bag opening, which may cause leakage of the culture fluid.

[0033] An air inlet 6 is provided on the upper end of the side surface of the baffle plate 3 close to the buffer plate 2, a piston cylinder 8 is fixedly connected to the front surface of the baffle plate 3, an L-shaped piston rod 9 is inserted into the interior of the piston cylinder 8, and the end of the L-shaped piston rod 9 away from the piston cylinder 8 is fixedly connected to the outer surface of the buffer plate 2, when the buffer plate 2 moves downward, the L-shaped piston rod 9 can be driven to move synchronously, and when the L-shaped piston rod 9 moves downward, the air inside the piston cylinder 8 can be extracted, and the top end of the piston cylinder 8 is fixedly connected to a connecting pipe 10, and the connecting pipe 10 is away from the piston cylinder 8. One end passes through the baffle 3, and the end of the connecting tube 10 away from the piston cylinder 8 is fixedly connected to the inner wall surface of the side of the air intake port 6 away from the buffer plate 2. After the homogenizing bag is opened and placed on the buffer plate 2, the buffer plate 2 will drive the L-shaped piston rod 9 to move downward, and then the air at the air intake port 6 can be sucked through the cooperation of the piston cylinder 8 and the connecting tube 10, so that the bag mouth of the homogenizing bag is adsorbed on the air intake port 6 for preliminary limiting, so that the bag mouth of the homogenizing bag is in contact with the upper end surface of the baffle 3, reducing the difficulty of clamping and fixing.

[0034] Reference Figure 4 , slots 11 are provided at both left and right ends of the upper surface of the base 1, the bottom end of the baffle 3 is plugged into the slot 11, a card slot 12 is provided on the side surface of the slot 11 away from the center of the base 1, and the card slots 12 are arranged in a vertical array on the side surface of the slot 11 away from the center of the base 1. A U-shaped through groove 13 is provided inside the baffle 3, and the two ends of the U-shaped through groove 13 away from the center of the base 1 penetrate the baffle 3, and a spring 14 is fixedly connected to the inner wall surface of one side of the U-shaped through groove 13 close to the buffer plate 2, and a U-shaped card block 15 is fixedly connected to the end of the spring 14 away from the buffer plate 2. When the U-shaped card block 15 moves toward the spring 14, it squeezes the spring 14, so that the spring 14 is compressed to generate elastic potential energy, and the outer wall of the U-shaped card block 15 and the inner wall of the U-shaped through groove 13 are attached to each other. The inner wall of the U-shaped through groove 13 can guide and limit the movement of the U-shaped block 15, so that the U-shaped block 15 can only move linearly in the left and right directions. The bottom end of the U-shaped block 15 is engaged with the inside of the slot 12. In the initial state, the U-shaped block 15 can be engaged with the baffle 3. When the baffle 3 needs to adjust its height to adapt to homogenizing bags of different specifications, the staff can press the U-shaped block 15 to make it enter the U-shaped through groove 13, thereby releasing the engagement and fixation of the baffle 3, so that the baffle 3 can be moved and adjusted in the up and down directions. When the baffle 3 moves to the desired position, the U-shaped block 15 is released to reset it under the elastic potential energy of the spring 14 and enter the corresponding slot 12 to be re-engaged and fixed, thereby completing the adjustment of the baffle 3. The operation is simple and convenient.

[0035] Working principle: when the mouth of the homogenizing bag is opened and placed on the buffer plate 2, the buffer plate 2 will be squeezed downward, and through the cooperation of the piston cylinder 8, L-shaped piston rod 9 and connecting tube 10, suction can be generated at the air inlet 6 to initially limit the bag mouth, and then the handle 703 can be rotated to drive the L-shaped clamping frame 4 to move downward and cooperate with the triangular rod 5 to clamp and fix the bag mouth, ensuring that the homogenizing bag remains stable during the sampling process, and avoiding the need to bend the bag mouth and insert it into the fixing clamp when clamping and fixing the bag mouth of the homogenizing bag, which may cause the homogenizing bag to bend too much and leak the culture fluid. When the baffle 3 needs to be adjusted in height according to the specifications of the homogenizing bag, the U-shaped block 15 can be pressed to release the clamping and fixing of the baffle 3, and then the baffle 3 can be moved to the required height and the U-shaped block 15 can be released, so that it can be reset and restored to the clamping and fixing under the elastic potential energy of the spring 14, and the operation is simple.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary sampling device for detecting microorganisms in a sample, comprising a base (1), characterized in that: A buffer plate (2) is arranged on the upper surface of the base (1), baffle plates (3) are fixedly connected to both left and right ends of the upper surface of the base (1), an L-shaped clamping frame (4) is arranged above the baffle plate (3), a triangular rod (5) is fixedly connected to the side surface of the baffle plate (3) close to the buffer plate (2), an air intake port (6) is opened at the upper end of the side surface of the baffle plate (3) close to the buffer plate (2), a moving unit is arranged on the outer side of the L-shaped clamping frame (4), a piston cylinder (8) is fixedly connected to the front side surface of the baffle plate (3), an L-shaped piston rod (9) is inserted into the interior of the piston cylinder (8), and a connecting pipe (10) is fixedly connected to the top end of the piston cylinder (8).

2. The auxiliary sampling device for detecting microorganisms in a sample according to claim 1, characterized in that: The upper surface of the base (1) is provided with slots (11) at both left and right ends, a clamping slot (12) is provided on a surface of the slot (11) at a side away from the center of the base (1), a U-shaped through slot (13) is provided inside the baffle (3), a spring (14) is fixedly connected to an inner wall surface of a side of the U-shaped through slot (13) close to the buffer plate (2), and a U-shaped clamping block (15) is fixedly connected to one end of the spring (14) away from the buffer plate (2).

3. The auxiliary sampling device for detecting microorganisms in a sample according to claim 1, characterized in that: The moving unit comprises a limit rod (701), the limit rod (701) is fixedly connected to the upper surface of the baffle (3), a screw rod (702) is rotatably connected to the center of the upper surface of the baffle (3), the top ends of the limit rod (701) and the screw rod (702) are both passed through the L-shaped clamping frame (4), and a handle (703) is fixedly connected to the top end of the screw rod (702).

4. The auxiliary sampling device for detecting microorganisms in a sample according to claim 1, characterized in that: The bottom end of the L-shaped clamping frame (4) and the upper surface of the triangular rod (5) are both fixedly connected with a rubber pad, and the bottom end of the L-shaped clamping frame (4) is arranged in an inclined structure.

5. The auxiliary sampling device for detecting microorganisms in a sample according to claim 1, characterized in that: One end of the connecting tube (10) away from the piston cylinder (8) passes through the baffle plate (3), and the other end of the connecting tube (10) away from the piston cylinder (8) is fixedly connected to the inner wall surface of the suction port (6) on one side away from the buffer plate (2).

6. The auxiliary sampling device for detecting microorganisms in a sample according to claim 1, characterized in that: One end of the L-shaped piston rod (9) away from the piston cylinder (8) is fixedly connected to the outer surface of the buffer plate (2).

7. The auxiliary sampling device for detecting microorganisms in a sample according to claim 2, characterized in that: The two ends of the U-shaped through groove (13) away from the center of the base (1) penetrate the baffle (3).

8. The auxiliary sampling device for detecting microorganisms in a sample according to claim 2, characterized in that: The outer wall of the U-shaped clamping block (15) and the inner wall of the U-shaped through groove (13) are in contact with each other, and the bottom end of the U-shaped clamping block (15) is clamped with the inside of the clamping groove (12).

Images