Laboratory bromine detection and extraction device

Abstract

The utility model discloses a bromine detection and extraction device in a laboratory, and belongs to the technical field of bromine production and detection. Comprising a test tube shading placing tube, the upper portion of the test tube shading placing tube is connected with a tube plug fixing tube in a screwed mode, a test tube is placed in an inner cavity of the test tube shading placing tube, a test tube plug is placed in an inner cavity of the tube plug fixing tube, and the tube plug fixing tube can push the test tube plug to move downwards and seal the test tube through the test tube plug. A push column transversely slides at the bottom of the side wall of the tube plug fixing tube, the push column arranged at one end of the inner cavity of the tube plug fixing tube is provided with a feeding tube, and the opening part of the feeding tube faces the opening part of the test tube. According to the utility model, bromine can be directly sucked into the test tube through the negative pressure generated by the ear washing bulb, and then the test tube plug is pushed into the test tube opening for wiping through the tube plug fixing seat of the tube plug fixing tube, so that the test tube is closed, the test tube containing bromine does not need to be exposed in the air, and the bromine is prevented from being diffused.

Description

Technical Field

[0001] The utility model relates to a laboratory bromine detection and extraction device, belonging to the technical field of bromine production detection. Background Art

[0002] Bromine is a basic chemical raw material for manufacturing various bromine salts and organic bromides, and has a wide range of uses. It is mainly used in the petroleum industry, pharmaceutical industry, plastic industry, national defense atomic and fire protection industries, dye industry, photographic and film technology industries, pesticide industry, and other chemical products. The natural resources of bromine mainly exist in seawater, underground brine, and salt lake water, and the air blowing and steam distillation processes are mostly used to extract bromine.

[0003] At present, during the production of bromine, it is necessary to sample the produced bromine and use laboratory equipment to detect bromine in order to determine whether the produced bromine meets the production standards. In actual production, most staff directly use a pipette to transfer bromine into a test tube for bromine sampling. Although this operation is simple, since bromine is volatile and toxic, directly using a pipette to transfer bromine will cause the volatilization of bromine and pose certain physical hazards to the sampling operators.

[0004] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a laboratory bromine detection and extraction device that will not expose bromine to the air during bromine sampling, so as to prevent the volatilization of bromine and thus endanger the physical health of the operators.

[0006] An optimized solution is a laboratory bromine detection and extraction device, including a test tube light-shielding placement tube. A tube plug fixing tube is screwed and connected to the upper part of the test tube light-shielding placement tube. A test tube is placed in the inner cavity of the test tube light-shielding placement tube, and a test tube plug is placed in the inner cavity of the tube plug fixing tube. The tube plug fixing tube can push the test tube plug downward to seal the test tube with the test tube plug.

[0007] A rubber bulb is communicated and provided at the upper part of the tube plug fixing tube. A push column slides horizontally at the bottom of the side wall of the tube plug fixing tube. A feed pipe is provided at one end of the push column arranged in the inner cavity of the tube plug fixing tube, and the mouth of the feed pipe is arranged facing the mouth of the test tube.

[0008] A light-shielding flexible tube is provided at the outer end of the push column arranged on the tube plug fixing tube. The light-shielding flexible tube is communicated with the feed pipe, and the end of the light-shielding flexible tube is connected with a suction needle tube.

[0009] Further, a plug fixing seat is provided in the inner cavity of the plug fixing tube. The outer wall of the plug fixing tube is longitudinally symmetrically provided with chute A. The outer wall of the plug fixing seat is symmetrically and horizontally provided with push plate A. Push plate A is slidably arranged in chute A, and the end of push plate A is arranged outside the plug fixing seat.

[0010] Further, the plug fixing seat is of a circular cover structure, and the mouth of the plug fixing seat faces the test tube light-shielding placement tube;

[0011] A plurality of evenly distributed spring pieces are arranged along the axis of the plug fixing seat on the inner cavity side wall of the plug fixing seat, and the spring pieces are used for elastically fixing the test tube plug.

[0012] Further, a test tube fixing seat is provided in the inner cavity of the test tube light-shielding placement tube. The outer wall of the test tube light-shielding placement tube is longitudinally symmetrically provided with chute B. The outer wall of the test tube fixing seat is symmetrically and horizontally provided with push plate B. Push plate B is slidably arranged in chute B, and the end of push plate B is arranged outside the test tube fixing seat.

[0013] Further, the test tube fixing seat is of a circular cover structure, and the mouth of the test tube fixing seat faces the plug fixing tube;

[0014] A rubber fixing sleeve is fixedly arranged in the inner cavity of the test tube fixing seat. The inner cavity of the rubber fixing sleeve is of a frustum structure, and the large-diameter mouth end of the rubber fixing sleeve is arranged at the mouth of the test tube fixing seat.

[0015] Further, guide grooves are symmetrically arranged on the outer wall of the test tube fixing seat, and guide plates are symmetrically and longitudinally arranged in the inner cavity of the test tube light-shielding placement tube. The guide plates are slidably arranged in the guide grooves.

[0016] Further, a retaining ring is provided at the head of the push column at one end of the inner cavity of the plug fixing tube, and the retaining ring can prevent the push column from detaching from the plug fixing tube.

[0017] Further, the plug fixing tube is communicated with an ear syringe through a flow-limiting tube, and the flow-limiting tube can limit the air flow speed entering the ear syringe.

[0018] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0019] The present utility model can directly suck bromine into the test tube through the negative pressure generated by the ear syringe, and then push the test tube plug into the test tube mouth through the plug fixing seat of the plug fixing tube, thereby closing the test tube, without exposing the test tube containing bromine to the air, thereby preventing the emission of bromine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front structural schematic diagram of the bromine detection and extraction device in the laboratory of the present utility model;

[0021] Figure 2 is a schematic side structure diagram of the bromine detection and extraction device in the laboratory of the present utility model;

[0022] Figure 3 is a schematic front sectional structure diagram of the bromine detection and extraction device in the laboratory of the present utility model;

[0023] Figure 4 is a schematic side sectional structure diagram of the bromine detection and extraction device in the laboratory of the present utility model;

[0024] Figure 5 is Figure 4 an enlarged structure diagram of the partial A;

[0025] Figure 6 is a schematic structure diagram of the test tube fixing seat of the bromine detection and extraction device in the laboratory of the present utility model;

[0026] In the figure, 1 - test tube light-shielding placement tube, 2 - tube plug fixing tube, 3 - rubber bulb, 4 - push column, 5 - feed pipe, 6 - light-shielding flexible tube, 7 - suction needle tube, 8 - tube plug fixing seat, 9 - chute A, 10 - push plate A, 11 - spring piece, 12 - test tube fixing seat, 13 - chute B, 14 - push plate B, 15 - rubber fixing sleeve, 16 - guide groove, 17 - guide plate, 18 - retaining ring, 19 - flow-limiting tube, 20 - sealing plate. Specific embodiments

[0027] For a clearer understanding of the technical features, purposes, and effects of the present utility model, the specific embodiments of the present utility model will now be described with reference to the accompanying drawings.

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top surface", "bottom surface", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] Embodiment, such as Figure 1 、2 As shown in Figures 1, 3, 4, 5 and 6, the present utility model provides a laboratory bromine detection and extraction device, including a test tube light-shielding placement tube 1. A tube plug fixing tube 2 is screwed and connected to the upper part of the test tube light-shielding placement tube 1. The test tube light-shielding placement tube 1 and the tube plug fixing tube 2 are made of brown glass. A test tube is placed in the inner cavity of the test tube light-shielding placement tube 1, and a test tube plug is placed in the inner cavity of the tube plug fixing tube 2. The tube plug fixing tube 2 can push the test tube plug downward to seal the test tube with the test tube plug;

[0031] The upper part of the tube plug fixing tube 2 is communicated with an ear syringe 3. A push column 4 slides horizontally at the bottom of the side wall of the tube plug fixing tube 2. A feed pipe 5 is provided at one end of the push column 4 arranged in the inner cavity of the tube plug fixing tube 2, and the mouth of the feed pipe 5 is arranged facing the mouth of the test tube;

[0032] A push column 4 arranged at the outer end of the tube plug fixing tube 2 is provided with a light-shielding flexible tube 6. The light-shielding flexible tube 6 is communicated with the feed pipe 5, and the end of the light-shielding flexible tube 6 is connected with a suction needle tube 7.

[0033] A tube plug fixing seat 8 is arranged in the inner cavity of the tube plug fixing tube 2. Slide grooves A9 are symmetrically arranged longitudinally on the outer wall of the tube plug fixing tube 2. Push plates A10 are symmetrically arranged horizontally on the outer wall of the tube plug fixing seat 8. The push plates A10 are slidably arranged in the slide grooves A9, and the ends of the push plates A10 are arranged outside the tube plug fixing seat 8.

[0034] The tube plug fixing seat 8 is of a circular cover structure, and the mouth of the tube plug fixing seat 8 is arranged facing the test tube light-shielding placement tube 1;

[0035] A plurality of uniformly distributed spring pieces 11 are arranged along the axis of the tube plug fixing seat 8 on the inner cavity side wall of the tube plug fixing seat 8, and the spring pieces 11 are used for elastically fixing the test tube plug.

[0036] A test tube fixing seat 12 is arranged in the inner cavity of the test tube light-shielding placement tube 1. Slide grooves B13 are symmetrically arranged longitudinally on the outer wall of the test tube light-shielding placement tube 1. Push plates B14 are symmetrically arranged horizontally on the outer wall of the test tube fixing seat 12. The push plates B14 are slidably arranged in the slide grooves B13, and the ends of the push plates B14 are arranged outside the test tube fixing seat 12.

[0037] The test tube fixing seat 12 is of a circular cover structure, and the mouth of the test tube fixing seat 12 is arranged facing the tube plug fixing tube 2;

[0038] A rubber fixing sleeve 15 is fixedly arranged in the inner cavity of the test tube fixing seat 12. The inner cavity of the rubber fixing sleeve 15 is of a frustum structure, and the large-diameter mouth end of the rubber fixing sleeve 15 is arranged at the mouth of the test tube fixing seat 12.

[0039] Guide grooves 16 are symmetrically arranged on the outer wall of the test tube fixing seat 12. Guide plates 17 are symmetrically arranged longitudinally in the inner cavity of the test tube light-shielding placement tube 1. The guide plates 17 are slidably arranged in the guide grooves 16.

[0040] The head of the push pin 4 disposed at one end of the inner cavity of the pipe plug fixing tube 2 is provided with a retaining ring 18 , and the retaining ring 18 can prevent the push pin 4 from being separated from the pipe plug fixing tube 2 .

[0041] The pipe plug fixing pipe 2 is connected to the ear cleaning ball 3 through a flow limiting pipe 19 , and the flow limiting pipe 19 can limit the air flow speed entering the ear cleaning ball 3 .

[0042] The upper and lower surfaces of the push plates A10 and B13 are both provided with sealing plates 20, which can close the chute A9 and the chute B13 to prevent the airflow generated by the ear cleaning ball 3 from being discharged through the chute A9 and the chute B13.

[0043] The working principle of this utility model:

[0044] Place the test tube plug in the inner cavity of the tube plug fixing seat 8, the spring sheet 11 elastically fixes the test tube plug, push the push rod 4 into the inner cavity of the tube plug fixing tube 2, and the push rod 4 blocks the test tube plug to prevent the test tube plug from falling;

[0045] Place the test tube in the test tube fixing seat 12 of the test tube light-shielding placing tube 1, and fix the bottom of the test tube with the rubber fixing sleeve 15;

[0046] The test tube light-shielding placement tube 1 is screwed together with the tube plug fixing tube 2, the ear cleaning ball 3 is squeezed, and then the suction needle tube 7 is inserted into the bromine container to be tested, and the ear cleaning ball 3 is released. The bromine in the bromine container is introduced into the test tube through the light-shielding hose 6 and the feeding tube 5. The bromine in the test tube is observed through the test tube light-shielding placement tube 1. After a certain amount of bromine is extracted, the excess bromine in the suction needle tube 7 is discharged into the bromine container by using the ear cleaning ball 3, and then the suction needle tube 7 is withdrawn from the bromine container;

[0047] The staff pulls the push rod 4 to place the feed tube 5 on the inner wall of the tube plug fixing tube 2 to prevent the feed tube 5 from interfering with the test tube plug, and then presses the push plate A10 and pulls the push plate B13 to move the test tube and the test tube plug toward each other, and then inserts the test tube plug into the mouth of the test tube to seal the test tube. When sampling, separate the test tube light-shielding placement tube 1 from the tube plug fixing tube 2 to remove the test tube.

[0048] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the article or device comprising the above elements.

[0049] Specific examples are used in this text to elaborate on the principles and implementation manners of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. Laboratory bromine detection and extraction device, characterized in that: The invention comprises a test tube light-shielding placement tube (1), the upper part of which is screwed and connected with a tube plug fixing tube (2), a test tube is placed in the inner cavity of the test tube light-shielding placement tube (1), a test tube plug is placed in the inner cavity of the tube plug fixing tube (2), and the tube plug fixing tube (2) can push the test tube plug downward to seal the test tube with the test tube plug; The upper part of the tube plug fixing tube (2) is connected to an ear cleaning ball (3), and a push column (4) is slidably disposed at the bottom of the side wall of the tube plug fixing tube (2). The push column (4) disposed at one end of the inner cavity of the tube plug fixing tube (2) is provided with a feed tube (5), and the mouth of the feed tube (5) is disposed toward the mouth of the test tube; A push column (4) disposed at one end of the outside of the pipe plug fixing tube (2) is provided with a light shielding hose (6), the light shielding hose (6) is connected to the feed tube (5), and a suction needle tube (7) is connected to the end of the light shielding hose (6).

2. The laboratory bromine detection and extraction device according to claim 1, characterized in that: The inner cavity of the pipe plug fixing tube (2) is provided with a pipe plug fixing seat (8), the outer wall of the pipe plug fixing tube (2) is symmetrically provided with a slide groove A (9) in the longitudinal direction, and the outer wall of the pipe plug fixing seat (8) is symmetrically provided with a push plate A (10) in the transverse direction. The push plate A (10) is slidably arranged in the slide groove A (9), and the end of the push plate A (10) is arranged outside the pipe plug fixing seat (8).

3. The laboratory bromine detection and extraction device according to claim 2, characterized in that: The tube plug fixing seat (8) is a circular cover structure, and the mouth of the tube plug fixing seat (8) is arranged toward the test tube light-shielding placement tube (1); The inner cavity side wall of the tube plug fixing seat (8) is provided with a plurality of evenly distributed spring sheets (11) along the axis of the tube plug fixing seat (8), and the spring sheets (11) are used for elastically fixing the test tube plug.

4. The laboratory bromine detection and extraction device according to claim 1, characterized in that: The inner cavity of the test tube light-shielding placement tube (1) is provided with a test tube fixing seat (12), the outer wall of the test tube light-shielding placement tube (1) is symmetrically provided with a slide groove B (13) in the longitudinal direction, and the outer wall of the test tube fixing seat (12) is symmetrically provided with a push plate B (14) in the transverse direction, the push plate B (14) is slidably arranged in the slide groove B (13), and the end of the push plate B (14) is arranged outside the test tube fixing seat (12).

5. The laboratory bromine detection and extraction device according to claim 4, characterized in that: The test tube fixing seat (12) is a circular cover structure, and the mouth of the test tube fixing seat (12) is arranged toward the tube plug fixing tube (2); The inner cavity of the test tube fixing seat (12) is fixedly provided with a rubber fixing sleeve (15), the inner cavity of the rubber fixing sleeve (15) is a truncated cone-shaped structure, and one end of the large-diameter mouth of the rubber fixing sleeve (15) is arranged at the mouth of the test tube fixing seat (12).

6. The laboratory bromine detection and extraction device according to claim 4, characterized in that: The outer wall of the test tube fixing seat (12) is symmetrically provided with guide grooves (16), and the inner cavity of the test tube light shielding placement tube (1) is symmetrically provided with guide plates (17) in the longitudinal direction, and the guide plates (17) are slidably arranged in the guide grooves (16).

7. The laboratory bromine detection and extraction device according to claim 1, characterized in that: The head of the push pin (4) disposed at one end of the inner cavity of the pipe plug fixing tube (2) is provided with a retaining ring (18), and the retaining ring (18) can prevent the push pin (4) from being separated from the pipe plug fixing tube (2).

8. The laboratory bromine detection and extraction device according to claim 1, characterized in that: The pipe plug fixing pipe (2) is connected to the ear cleaning ball (3) via a flow limiting pipe (19), and the flow limiting pipe (19) is capable of limiting the speed of air flow entering the ear cleaning ball (3).

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