Sampling detection tube and sampler for paint contrast detection

Abstract

The utility model discloses a sampling detection tube and a sampler for paint contrast detection, and belongs to the field of sampling tubes. The sampling detection tube comprises a sampling tube, and further comprises a piston plate which slides in the sampling tube in a sealing manner; the sealing sliding rod is fixed on the piston plate; the inner tube body slides in the sampling tube; the outer pipe body is fixed on the inner pipe body; the first gap is arranged between the inner tube body and the outer tube body, and the first gap is matched with a sampling tube; the oil paint sampling device effectively prevents oil paint from polluting the sampling pipe and the piston plate, and the inner pipe body and the outer pipe body which are taken down are convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling tubes, in particular to a sampling detection tube and a sampler for paint comparison detection. Background Art

[0002] Paint is a chemical mixture that can firmly cover the surface of an object for protection, decoration, marking and other special purposes. Paint is a material that can be applied to the surface of an object using different construction techniques to form a solid film that is firmly adhered, has a certain strength, and is continuous. The film formed in this way is generally called a coating film, also known as a paint film or coating. In paint production, it is necessary to take samples and compare the paint to improve the quality of paint configuration.

[0003] The current sampling and testing tube extracts paint for testing through a tube body with a piston plate. After sampling one side, the sampling tube needs to be cleaned and then sampled a second time, which is more complicated. In addition, after the first sampling, the paint may adhere to the piston plate, which may affect the test results of the next sampling comparison. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a sampling detection tube and a sampler for paint comparison detection which can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sampling detection tube comprises: a sampling tube, and also comprises: a piston plate, which is sealed and slides inside the sampling tube; a sealing slide rod, which is fixed on the piston plate; an inner tube body, which slides inside the sampling tube; an outer tube body, which is fixed on the inner tube body; and a first gap, which is arranged between the inner tube body and the outer tube body, and the first gap matches the sampling tube.

[0007] In order to facilitate the fixation of the outer tube body, preferably, the outer wall of the sampling tube is fixedly connected with a fixing ring, a limiting rod is symmetrically slidable on the fixing ring, one end of the limiting rod close to the sampling tube is fixedly connected with a pressure block matching the outer tube body, and a spring is fixedly connected between the limiting rod and the fixing ring.

[0008] In order to facilitate the limiting of the sealing slide rod, preferably, a sealing block is provided on the sampling tube, and the sealing block is sealingly and slidably connected to the sealing slide rod.

[0009] In order to facilitate the fixing of the sealing slide rod, preferably, a fixing plate is fixedly connected to the sealing block, the fixing plate is provided with a first internal thread, and the sealing slide rod is provided with an external thread matching the first internal thread.

[0010] In order to facilitate cleaning of the piston plate, preferably, the sealing block is threadedly connected to the sampling tube.

[0011] In order to prevent liquid from dripping, preferably, the lower end of the inner tube body is fixedly connected with a liquid extraction nozzle.

[0012] In order to facilitate the fixation of the outer tube body, preferably, an air bag is fixedly connected inside the fixing ring, and a connecting tube is provided between the air bag and the upper end of the sampling tube.

[0013] In order to facilitate one-handed operation, preferably, a support plate is symmetrically fixedly connected to the sampling tube.

[0014] In order to facilitate taking out the inner tube body, preferably, a conical platform is fixedly connected to the inner tube body.

[0015] A sampler for paint comparison detection comprises a sampling detection tube.

[0016] Compared with the prior art, the utility model provides a sampling detection tube, which has the following beneficial effects:

[0017] 1. The sampling and testing tube places the outer tube body in the fixing ring by pulling two limiting rods, and then loosens the limiting rods, so that the pressing block clamps and fixes the outer tube body under the action of the spring, thereby effectively fixing the outer tube body and preventing the sampling tube from being evacuated through the first gap.

[0018] 2. The sampling and testing tube drives the piston plate to move upward through the sealing slide rod, so that negative pressure is generated in the sampling tube, and the paint enters the inner tube body. After a certain amount of paint is extracted, the sealing slide rod is stopped from being pulled upward. After the sampling is completed, the limit rod can be directly pulled to remove the inner tube body and the outer tube body, thereby effectively preventing the paint from contaminating the sampling tube and the piston plate, and facilitating the cleaning of the removed inner tube body and the outer tube body.

[0019] 3. In the sampling detection tube, the gas above the sampling tube enters the airbag through the connecting tube, and the airbag gradually expands and squeezes the outer tube body, thereby effectively preventing the gas from entering the sampling tube through the first gap.

[0020] The parts not involved in the device are the same as the prior art or can be implemented by using the prior art. The utility model effectively prevents paint from contaminating the sampling tube and the piston plate, and is convenient for cleaning the removed inner tube body and outer tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the sampling and detection tube;

[0022] Figure 2 It is a schematic diagram of the explosion structure of the sampling and detection tube;

[0023] Figure 3It is a schematic diagram of the cross-sectional structure of the sampling and detection tube;

[0024] Figure 4 For sampling test tube Figure 3 A magnified schematic diagram of center A.

[0025] In the figure: 1. sampling tube; 101. support plate; 102. sealing slide rod; 103. piston plate; 104. external thread; 105. fixing ring; 106. limit rod; 107. pressure block; 108. spring; 109. airbag; 110. connecting tube; 2. sealing block; 201. fixing plate; 202. first internal thread; 3. inner tube body; 301. outer tube body; 302. first gap; 303. conical platform; 304. liquid extraction nozzle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A sampling detection tube includes: a sampling tube 1, and also includes: a piston plate 103, which is sealed and slides in the sampling tube 1; a sealing slide rod 102, which is fixed on the piston plate 103; an inner tube body 3, which slides in the sampling tube 1; an outer tube body 301, which is fixed on the inner tube body 3; a first gap 302, which is set between the inner tube body 3 and the outer tube body 301, and the first gap 302 matches the sampling tube 1.

[0028] A fixing ring 105 is fixedly connected to the outer wall of the sampling tube 1, and a limiting rod 106 is symmetrically slidable on the fixing ring 105. An end of the limiting rod 106 close to the sampling tube 1 is fixedly connected to a pressing block 107 matching the outer tube body 301, and a spring 108 is fixedly connected between the limiting rod 106 and the fixing ring 105.

[0029] When sampling the paint, the inner tube body 3 is inserted into the sampling tube 1, and the outer tube body 301 is placed outside the sampling tube 1, wherein the inner tube body 3 is in contact with the inner wall of the sampling tube 1, and the outer tube body 301 is placed in the fixing ring 105 by pulling the two limiting rods 106, and then the limiting rods 106 are loosened, and the pressing block 107 is clamped and fixed to the outer tube body 301 under the action of the spring 108, thereby effectively fixing the outer tube body 301 and preventing the sampling tube 1 from evacuating air through the first gap 302;

[0030] After installation, directly pull the sealing slide bar 102 upwards, and the sealing slide bar 102 drives the piston plate 103 to move upwards, so that negative pressure is generated in the sampling tube 1, and the paint enters the inner tube body 3. After a certain amount of paint is extracted, stop pulling the sealing slide bar 102 upwards. After the sampling is completed, you can directly pull the limit rod 106 to remove the inner tube body 3 and the outer tube body 301, thereby effectively preventing the paint from contaminating the sampling tube 1 and the piston plate 103, and facilitating the cleaning of the removed inner tube body 3 and the outer tube body 301.

[0031] In another specific embodiment, the inner tube body 3 and the outer tube body 301 may also be made of one-piece transparent silicone or soft plastic, and are set as disposable items, eliminating the need to frequently clean the inner tube body 3 and the outer tube body 301 in comparative experiments.

[0032] Example 2: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , a sampling detection tube, which is basically the same as embodiment 1, further, a sealing block 2 is provided on the sampling tube 1, and the sealing block 2 is sealingly slidably connected to the sealing sliding rod 102.

[0033] A fixing plate 201 is fixedly connected to the sealing block 2 . A first internal thread 202 is provided on the fixing plate 201 . An external thread 104 matching the first internal thread 202 is provided on the sealing sliding rod 102 .

[0034] The sealing block 2 is threadedly connected to the sampling tube 1 .

[0035] The lower end of the inner tube body 3 is fixedly connected with a liquid extraction nozzle 304 .

[0036] An air bag 109 is fixedly connected inside the fixing ring 105 , and a connecting tube 110 is provided between the air bag 109 and the upper end of the sampling tube 1 .

[0037] A support plate 101 is symmetrically fixedly connected to the sampling tube 1 .

[0038] A conical platform 303 is fixedly connected to the inner tube body 3 .

[0039] When the sealing slide rod 102 is pulled upward to extract liquid, after the sealing slide rod 102 moves upward to a certain distance, the sealing slide rod 102 is rotated, and the sealing slide rod 102 is limited by the cooperation of the first internal thread 202 and the external thread 104, thereby effectively preventing the sealing slide rod 102 from sliding downward and causing liquid to flow out.

[0040] When the piston plate 103 slides upward, the gas above the sampling tube 1 enters the airbag 109 through the connecting tube 110 , and the airbag 109 gradually expands and squeezes the outer tube body 301 , thereby effectively preventing the gas from entering the sampling tube 1 through the first gap 302 .

[0041] The sealing block 2 is disassembled to facilitate cleaning of the sampling tube 1 and the piston plate 103 .

[0042] After sampling is completed, the sealing slide bar 102 is pushed downward to allow the internal liquid to flow out, and then the limiting rod 106 is pulled and the sealing slide bar 102 is continued to be pushed downward to allow the piston plate 103 to squeeze the conical platform 303, thereby facilitating the removal of the inner tube body 3.

[0043] Example 3: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , a sampler for paint comparison detection, including a sampling detection tube.

[0044] In the comparative experiment, two groups of sampling tubes 1 can be used for sampling comparison.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampling detection tube, comprising: The sampling tube (1) is characterized by further comprising: A piston plate (103) sealingly slides inside the sampling tube (1); A sealing slide rod (102) fixed on the piston plate (103); An inner tube body (3) slidingly arranged inside the sampling tube (1); An outer tube body (301) is fixed on the inner tube body (3); The first gap (302) is arranged between the inner tube body (3) and the outer tube body (301), and the first gap (302) matches the sampling tube (1).

2. A sampling and testing tube according to claim 1, characterized in that: The outer wall of the sampling tube (1) is fixedly connected to a fixing ring (105), a limiting rod (106) is symmetrically slidably disposed on the fixing ring (105), one end of the limiting rod (106) close to the sampling tube (1) is fixedly connected to a pressing block (107) matching the outer tube body (301), and a spring (108) is fixedly connected between the limiting rod (106) and the fixing ring (105).

3. A sampling and testing tube according to claim 2, characterized in that: The sampling tube (1) is provided with a sealing block (2), and the sealing block (2) is sealingly slidably connected to the sealing sliding rod (102).

4. A sampling and testing tube according to claim 3, characterized in that: The sealing block (2) is fixedly connected to a fixing plate (201), the fixing plate (201) is provided with a first internal thread (202), and the sealing sliding rod (102) is provided with an external thread (104) matching the first internal thread (202).

5. A sampling and testing tube according to claim 3, characterized in that: The sealing block (2) is threadedly connected to the sampling tube (1).

6. A sampling and testing tube according to claim 1, characterized in that: The lower end of the inner tube body (3) is fixedly connected to a liquid extraction nozzle (304).

7. A sampling and testing tube according to claim 3, characterized in that: An air bag (109) is fixedly connected inside the fixing ring (105), and a connecting tube (110) is provided between the air bag (109) and the upper end of the sampling tube (1).

8. The sampling and testing tube according to claim 1, characterized in that: A support plate (101) is symmetrically fixedly connected to the sampling tube (1).

9. The sampling and testing tube according to claim 1, characterized in that: A conical platform (303) is fixedly connected to the inner tube body (3).

10. A sampler for comparative detection of paint, comprising a sampling detection tube as claimed in any one of claims 1 to 9.

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