Micro-adjustable limiter

Abstract

The utility model belongs to the technical field of limiters, and particularly relates to a micro-adjustable limiter which comprises an upper fixing plate, two first connecting holes distributed left and right are formed in the top of the upper fixing plate, and the bottom of the upper fixing plate is connected with a connecting rod structure through the two first connecting holes. A plurality of limiting plates and two lower fixing plates are arranged outside the two connecting rod structures, the number of the limiting plates is 50, the thickness of each limiting plate is 1 mm, and the two lower fixing plates are both located on the lower portions of the limiting plates and used for fixing a needle cylinder; through the arrangement of the limiting plates, when the device is used, the number of the limiting plates on the upper layer can be adjusted according to the pushing amount of the needle cylinder, so that the single-time pushing amount of the needle cylinder can be kept accurate, and the test efficiency and success rate are improved.

Description

Technical Field

[0001] This utility model belongs to the field of limiter technology, specifically a micro-adjustable limiter. Background Technology

[0002] In the experiment of "immobilization of yeast cells", when injecting the syringe during the immobilization of yeast cells, improper force control often results in too much or too little liquid being injected, which fails to form beads. There is no better solution to this problem on the market.

[0003] Therefore, a micro-adjustable limiter is proposed to address the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a micro-adjustable limiter, which solves the problem of quantitative injection when pushing the syringe during the experiment of "immobilization of yeast cells".

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a micro-adjustable limiter, comprising an upper fixing plate, the top of which has two left-right distributed first connecting holes, and the bottom of the upper fixing plate is connected to a connecting rod structure through the two first connecting holes respectively. Several limiting plates and two lower fixing plates are provided outside the two connecting rod structures. The number of the several limiting plates is 50, and the thickness of the limiting plates is 1mm. The two lower fixing plates are located below the several limiting plates, and the two lower fixing plates are used to fix the syringe.

[0008] Preferably, a second connecting hole is provided on the top left side of the limiting plate, a large slot is provided in the middle of the rear side of the limiting plate, the large slot engages with the push rod in the syringe and is used to limit the upper push plate in the syringe, and a small slot is provided on the right side of the rear side of the limiting plate.

[0009] Preferably, a through hole is provided in the middle of the upper end face of the lower fixing plate, the through hole is fitted and connected to the syringe, and a third connecting hole is provided on the left side of the upper end face and the right side of the upper end face of the lower fixing plate.

[0010] Preferably, the connecting rod structure includes a top cap, and a lead screw is fixedly connected to the bottom of the top cap. The lead screw is fitted into the first connecting hole, the second connecting hole, the small slot, and the third connecting hole.

[0011] Preferably, the lead screw has a first nut, a second nut and two third nuts threadedly connected to its outer surface. The lead screw is clamped and fixed to the upper fixing plate by the top nut and the first nut. The lead screw limits the height of several limiting plates by the second nut.

[0012] Preferably, both third nuts are located below several limiting plates, and the lead screw clamps and fixes the two lower fixing plates through the two third nuts.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a micro-adjustable limiter with the following features:

[0015] Beneficial effects:

[0016] 1. By setting up several limiting plates, the number of upper limiting plates can be adjusted according to the amount of syringe injection during use, so that the amount of syringe injection per cycle can be kept accurate, thereby improving the efficiency and success rate of the test.

[0017] 2. This utility model has a simple structure, low manufacturing cost, and is easier to promote and use. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the second three-dimensional structure of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the first form of the present invention in use;

[0022] Figure 4 This is a three-dimensional structural diagram of the second form of the present invention in use;

[0023] Figure 5 This is a three-dimensional structural diagram of the upper fixing plate of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the connecting rod structure of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the limiting plate of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the lower fixing plate of this utility model;

[0027] Figure 9 This is a schematic diagram of the three-dimensional structure of a syringe.

[0028] In the diagram: 1. Upper fixing plate; 2. Connecting rod structure; 3. Limiting plate; 4. Lower fixing plate; 11. First connecting hole; 21. Top cap; 22. Lead screw; 23. First nut; 24. Second nut; 25. Third nut; 31. Second connecting hole; 32. Large slot; 33. Small slot; 41. Through hole; 42. Third connecting hole. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Specific implementation examples are given below.

[0031] Please see Figures 1-9 This utility model provides a technical solution: a micro-adjustable limiter, including an upper fixing plate 1. The top of the upper fixing plate 1 has two first connecting holes 11 distributed to the left and right. The bottom of the upper fixing plate 1 is connected to a connecting rod structure 2 through the two first connecting holes 11. Several limiting plates 3 and two lower fixing plates 4 are arranged outside the two connecting rod structures 2. The number of the several limiting plates 3 is 50, and the thickness of the limiting plates 3 is 1mm. The two lower fixing plates 4 are located below the several limiting plates 3, and the two lower fixing plates 4 are used to fix the syringe.

[0032] Furthermore, such as Figures 1-9As shown, a second connecting hole 31 is provided on the top left side of the limiting plate 3, and a large slot 32 is provided in the middle of the rear side of the limiting plate 3. The large slot 32 engages with the push rod in the syringe and is used to limit the upper push plate in the syringe. A small slot 33 is provided on the right side of the rear side of the limiting plate 3. A through hole 41 is provided in the middle of the upper end face of the lower fixing plate 4. The through hole 41 is fitted and connected to the syringe. A third connecting hole 42 is provided on both the left and right sides of the upper end face of the lower fixing plate 4. The connecting rod structure 2 includes a top cap 21. A lead screw 22 is fixedly connected to the bottom of the top cap 21. 2 is fitted and connected to the first connecting hole 11, the second connecting hole 31, the small slot 33 and the third connecting hole 42. The outer surface of the lead screw 22 is threaded with a first nut 23, a second nut 24 and two third nuts 25. The lead screw 22 is clamped and fixed to the upper fixing plate 1 by the top cap 21 and the first nut 23. The lead screw 22 limits the height of several limiting plates 3 by the second nut 24. The two third nuts 25 are located at the lower part of several limiting plates 3, and the lead screw 22 is clamped and fixed to the two lower fixing plates 4 by the two third nuts 25.

[0033] With the above scheme, by setting up several limiting plates 3, the number of upper limiting plates 3 can be adjusted according to the amount of syringe injection during use, so that the amount of syringe injection per injection can be kept accurate, thereby improving the efficiency and success rate of the test.

[0034] Working principle: First, assemble the device. During assembly, connect the two connecting rod structures 2 to the upper fixed plate 1. Then, insert the syringe body into the through hole 41 in one of the lower fixed plates 4. Next, cover the upper part of the lower push plate on the upper part of the syringe body with another lower fixed plate 4. Then, insert the plunger and piston in the syringe into the syringe body through the through hole 41 in the upper lower fixed plate 4. After that, connect several limiting plates 3 to the connecting rod structure 2 on the left side. Then, connect and fix the two lower fixed plates 4 to the two connecting rod structures 2. In subsequent operations, the syringe draws the experimental reagent and is limited by several pairs of upper push plates in the syringe. During the experiment, the number of upper limiting plates 3 is adjusted according to the amount of syringe injection to achieve accurate injection volume operation in a single operation.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A micro-adjustable stop comprising an upper fixed plate (1), characterised in that: The top of the upper fixing plate (1) is provided with two first connecting holes (11) distributed left and right, and the bottom of the upper fixing plate (1) is connected with a connecting rod structure (2) through the two first connecting holes (11), respectively. The outer part of the two connecting rod structures (2) is provided with a plurality of limiting plates (3) and two lower fixing plates (4). The number of the plurality of limiting plates (3) is 50, and the thickness of the limiting plate (3) is 1mm. The two lower fixing plates (4) are located at the lower part of the plurality of limiting plates (3), and are used for fixing the needle cylinder.

2. A micro-adjustable stop according to claim 1, wherein: The top left side of the limiting plate (3) is provided with a second connecting hole (31), and the rear side of the limiting plate (3) is provided with a large clamping groove (32) in the middle. The large clamping groove (32) is clamped with the push rod in the needle cylinder, and is used for limiting the push plate in the needle cylinder. The right part of the rear side of the limiting plate (3) is provided with a small clamping groove (33).

3. A micro-adjustable stop according to claim 2, wherein: The upper end surface of the lower fixing plate (4) is provided with a through hole (41) in the middle. The through hole (41) is embeddedly connected with the needle cylinder. The upper end surface left side and the upper end surface right side of the lower fixing plate (4) are provided with a third connecting hole (42).

4. A micro-adjustable stop according to claim 3, wherein: The connecting rod structure (2) comprises a top hat (21), and the bottom of the top hat (21) is fixedly connected with a lead screw (22). The lead screw (22) is embeddedly connected with the first connecting hole (11), the second connecting hole (31), the small clamping groove (33) and the third connecting hole (42).

5. A micro-adjustable stop according to claim 4, wherein: The outer surface of the lead screw (22) is threadedly connected with a first nut (23), a second nut (24) and two third nuts (25). The lead screw (22) clamps and fixes the upper fixing plate (1) through the top hat (21) and the first nut (23). The lead screw (22) limits the height of the plurality of limiting plates (3) through the second nut (24).

6. A micro-adjustable stop according to claim 5, wherein: The two third nuts (25) are located at the lower part of the plurality of limiting plates (3), and the lead screw (22) clamps and fixes the two lower fixing plates (4) through the two third nuts (25).

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