Paint sampling device

Abstract

The utility model relates to the technical field of paint sampling, in particular to a paint sampling device which comprises a negative pressure cylinder and a sampling cup, the upper end of the negative pressure cylinder is of a closed structure, a piston is arranged in the negative pressure cylinder, the upper end of the piston is connected with a push rod penetrating through the upper end of the negative pressure cylinder, and the lower end of the piston is connected with the bottom of the negative pressure cylinder through a spring. An upper connecting nozzle is arranged at the bottom of the negative pressure cylinder, a detachable cup cover is arranged at the upper end of the sampling cup, a lower connecting nozzle connected with the upper connecting nozzle is arranged at the upper end of the cup cover, a sampling opening is formed in the lower end of the sampling cup, and the volume of the negative pressure cylinder is smaller than that of the sampling cup; the negative pressure cylinder is only used for negative pressure extraction, paint is extracted through the sampling cup, it is ensured that the paint cannot enter the negative pressure cylinder, the negative pressure cylinder and the sampling cup are detachable, the convenience of cleaning after use is improved, and use is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of paint sampling, in particular to a paint sampling device. Background Art

[0002] Latex paint is a kind of water-based paint prepared by adding pigments, fillers and various additives to a synthetic resin emulsion as the base material. It is also called synthetic resin emulsion paint and is a kind of organic paint. Any paint that uses water as a solvent or a dispersion medium can be called a water-based paint, including water-soluble paint, water-dilutable paint, and water-dispersible paint (latex paint). Latex paint is widely used in environmental protection paints for housing construction because of its advantages such as rapid film formation, shortened construction period, saving construction costs, excellent air permeability, environmental protection and no peculiar smell, and washability.

[0003] In the production process of latex paint, in order to control the quality, it is often necessary to sample and detect the latex paint. In order to facilitate sampling, Patent CN212059465U discloses a paint sampling device for detection, which uses a piston to extract the paint, which is very convenient. When extracting the paint, the paint will be drawn into the interior of the sampling device body 1. After use, the device needs to be cleaned. However, only the sampling head 2 of this device can be removed, and the sampling device body integrates electronic control components such as an electric push rod and a button. Therefore, it is inconvenient to clean the sampling device body, and there is even a risk of water flowing into the electronic control components. Content of the Utility Model

[0004] The utility model aims at the above-mentioned deficiencies existing in the prior art, and provides a paint sampling device. The negative pressure cylinder is only used to draw negative pressure, and the paint is extracted through the sampling cup to ensure that the paint will not enter the negative pressure cylinder. The negative pressure cylinder and the sampling cup are detachable, which increases the convenience of cleaning after use and is simpler and more convenient to use.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A paint sampling device includes a negative pressure cylinder and a sampling cup. The upper end of the negative pressure cylinder is a closed structure. A piston is arranged inside the negative pressure cylinder. The upper end of the piston is connected with a push rod passing through the upper end of the negative pressure cylinder. The lower end of the piston is connected with the bottom of the negative pressure cylinder through a spring. The bottom of the negative pressure cylinder is provided with an upper connecting nozzle. The upper end of the sampling cup is provided with a detachable cup cover. The upper end of the cup cover is provided with a lower connecting nozzle connected with the upper connecting nozzle. The lower end of the sampling cup is provided with a sampling port. The volume of the negative pressure cylinder is smaller than that of the sampling cup.

[0007] Preferably, scale lines are arranged on the side wall of the negative pressure cylinder. A parallel scale bar is arranged on one side of the push rod. The scale bar is used to indicate the scale. The scale bar is closely attached to the side wall of the negative pressure cylinder, and the lower end of the scale bar is flush with the lower end of the piston.

[0008] Preferably, a handle is connected to one side of the negative pressure cylinder.

[0009] Preferably, a spring storage cylinder is connected to the lower end of the negative pressure cylinder. The lower end of the spring is located inside the spring storage cylinder, and the upper connecting nozzle is located at the bottom of the spring storage cylinder.

[0010] Preferably, the upper connecting nozzle and the lower connecting nozzle are threadedly connected.

[0011] Preferably, the cup cover and the upper end of the sampling cup are threadedly connected.

[0012] Preferably, the lower end of the sampling cup is funnel-shaped.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The negative pressure cylinder of the present utility model is only used for pumping negative pressure. The paint is extracted through the sampling cup to ensure that the paint does not enter the negative pressure cylinder. The negative pressure cylinder and the sampling cup are detachable, which increases the convenience of cleaning after use and makes the use simpler and more convenient.

[0015] 2. The present utility model can accurately control the downward movement position of the piston through the benchmark, which is convenient for controlling the sampling volume.

[0016] 3. The present utility model resets the piston through the spring, which improves the convenience of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the negative pressure cylinder;

[0019] Figure 3 is a schematic structural diagram of the sampling cup;

[0020] Figure 4 is a cross-sectional view of the present utility model;

[0021] In the figure: 1 - negative pressure cylinder; 101 - benchmark; 102 - push rod; 103 - handle; 104 - scale line; 105 - spring storage cylinder; 106 - upper connecting nozzle; 107 - piston; 108 - spring; 2 - sampling cup; 201 - cup cover; 202 - lower connecting nozzle; 203 - sampling port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1 、 4 shown, a paint sampling device includes a negative pressure cylinder 1 and a sampling cup 2. As Figure 2 shown, the upper end of the negative pressure cylinder 1 is a closed structure. A piston 107 is provided inside the negative pressure cylinder 1. The upper end of the piston 107 is connected to a push rod 102 that penetrates the upper end of the negative pressure cylinder 1. The piston 107 can be pushed downward through the push rod 102. The lower end of the piston 107 is connected to the bottom of the negative pressure cylinder 1 by a spring 108. Under the action of the spring 108, the piston 107 can be pushed upward to achieve reset, thereby increasing the convenience of use. A upper connecting nozzle 106 is provided at the bottom of the negative pressure cylinder 1. As Figure 3 shown, a detachable cup cover 201 is provided at the upper end of the sampling cup 2. A lower connecting nozzle 202 connected to the upper connecting nozzle 106 is provided at the upper end of the cup cover 201. A sampling port 203 is provided at the lower end of the sampling cup 2; the volume of the negative pressure cylinder 1 is smaller than that of the sampling cup 2 to ensure that the paint does not enter the negative pressure cylinder 1 during sampling.

[0024] Scale lines 104 are provided on the side wall of the negative pressure cylinder 1. A parallel scale bar 101 is provided on one side of the push rod 102. The scale bar 101 is used to indicate the scale. The scale bar 101 is closely attached to the side wall of the negative pressure cylinder 1. The lower end of the scale bar 101 is flush with the lower end of the piston 107. The downward movement position of the piston 107 can be observed through the scale bar 101, thereby controlling the sampling volume.

[0025] A handle 103 is connected to one side of the negative pressure cylinder 1 to facilitate the operator's grasping.

[0026] To increase the movement range of the piston 107, a spring storage cylinder 105 is connected to the lower end of the negative pressure cylinder 1. The lower end of the spring 108 is located inside the spring storage cylinder 105. The upper connecting nozzle 106 is located at the bottom of the spring storage cylinder 105.

[0027] For easy cleaning, the upper connecting nozzle 106 and the lower connecting nozzle 202 are threadedly connected, and the cup cover 201 and the upper end of the sampling cup 2 are threadedly connected.

[0028] To allow the paint in the sampling cup 2 to flow out, the lower end of the sampling cup 2 is funnel-shaped.

[0029] During use, push the push rod 102 downward, control the position of the piston 107 according to the scale corresponding to the benchmark 101, then place the sampling port 203 in the paint, release the push rod 102, and under the action of the spring 108, the piston 107 moves upward to draw negative pressure on the sampling cup 2, and the paint enters the sampling cup 2. After sampling, the device moves vertically without tilting or horizontally. Pushing the push rod 102 can push the paint out of the sampling cup 2. After use, disassemble the upper connecting nozzle 106 from the lower connecting nozzle 202, open the cup cover 201, and rinse the cup cover 201 and the sampling cup 2.

[0030] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A paint sampling device, characterized in that: It includes a negative pressure cylinder and a sampling cup, the upper end of the negative pressure cylinder is a closed structure, a piston is arranged in the negative pressure cylinder, the upper end of the piston is connected with a push rod which passes through the upper end of the negative pressure cylinder, the lower end of the piston is connected with the bottom of the negative pressure cylinder through a spring, an upper connecting nozzle is arranged at the bottom of the negative pressure cylinder, a detachable cup cover is arranged at the upper end of the cup cover, a lower connecting nozzle connected with the upper connecting nozzle is arranged at the upper end of the sampling cup, a sampling port is arranged at the lower end of the sampling cup, and the volume of the negative pressure cylinder is smaller than that of the sampling cup.

2. A paint sampling device as claimed in claim 1, characterized in that: The side wall of the negative pressure cylinder is provided with scale lines, and a parallel mark rod is provided on one side of the push rod. The mark rod is used to indicate the scale, the mark rod is closely attached to the side wall of the negative pressure cylinder, and the lower end of the mark rod is flush with the lower end of the piston.

3. A paint sampling device as claimed in claim 1, characterized in that: A handle is connected to one side of the negative pressure cylinder.

4. A paint sampling device as claimed in claim 1, characterized in that: The lower end of the negative pressure cylinder is connected with a spring storage cylinder, the lower end of the spring is located in the spring storage cylinder, and the upper connecting nozzle is located at the bottom of the spring storage cylinder.

5. A paint sampling device as claimed in claim 1, characterized in that: The upper connecting nozzle and the lower connecting nozzle are threadedly connected.

6. A paint sampling device as claimed in claim 1, characterized in that: The cup cover is threadably connected to the upper end of the sampling cup.

7. A paint sampling device as claimed in claim 1, characterized in that: The lower end of the sampling cup is funnel-shaped.

Images