Coating sampler

Abstract

The utility model relates to the technical field of samplers, in particular to a coating sampler. The coating sampling device can be repeatedly used, coating is prevented from being attached to the inner wall and the outer wall, and coating sampling convenience and cleanliness are improved; comprising a sampling barrel, a piston installed in the sampling barrel in a sliding mode, a rod frame fixedly connected with the sampling barrel, a rod body connected with the piston and installed on the rod frame in a sliding mode, a sampling bag and a clamping piece installed on the sampling barrel and used for clamping and fixing the sampling bag, openings are formed in the upper portion and the lower portion of the sampling barrel, and the sampling bag is arranged at the bottom of the sampling barrel in a sleeving mode; the rod body is a threaded rod, the threaded rod is installed on the rod frame in a threaded mode, and the bottom of the threaded rod is rotationally connected with the top of the piston. A conical flow guide cover is mounted at the bottom of the sampling barrel, the small-caliber end of the conical flow guide cover faces upwards, and a penetrating opening is formed in the small-caliber position of the conical flow guide cover; a storage cavity is formed between the outer wall of the conical flow guide cover and the inner wall of the sampling barrel.

Description

Technical Field

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

[0002] During the production process, the paint needs to be sampled to test its adhesion, hardness, impact resistance, salt spray resistance, abrasion resistance and other properties. For this purpose, the paint needs to be sampled using a sampler.

[0003] For example, a Chinese utility model patent discloses a paint detection sampling device (Announcement No. CN220170624U), which includes a barrel and a pull rod inserted into the barrel, as well as multiple samplers inserted into the barrel. The samplers include a sampling barrel with an open top, a piston plate sliding inside the sampling barrel, an extended baffle disposed below the sampling barrel, and a connecting rod connecting the extended baffle and the piston plate. A second compression spring is provided on the outside of the connecting rod, and the pull rod is provided with an eccentric shaft baffle that abuts the extended baffle. The side of the barrel is provided with a liquid inlet that cooperates with the samplers. It uses a piston sampler mechanism, which draws paint into the inner cavity of the sampling barrel through the piston plate, solving the problem of air clogging in the sampling barrel, which affects the sampling effect.

[0004] However, when the inventors implemented this device, they found the following defects: after the sampler samples the paint, the inner and outer walls are easily adhered to by the paint. Because the paint has good adhesion, it is difficult to clean. The sampler is often used as a disposable sampling tool, resulting in waste. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a reusable paint sampler which prevents paint from adhering to the inner and outer walls and improves the convenience and cleanliness of paint sampling.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paint sampler, comprising a sampling barrel, a piston slidably installed in the sampling barrel, a rod frame fixedly connected to the sampling barrel, a rod body connected to the piston and slidably installed on the rod frame, a sampling bag and a clamping member installed on the sampling barrel and used to clamp the sampling bag, the upper and lower parts of the sampling barrel are both provided with openings, and the sampling bag is sleeved on the bottom of the sampling barrel; further, the clamping member can be an elastic band, such as a rubber band, etc., or other equivalent members that have a clamping effect on the sampling bag; the sampling barrel is preferably a cylindrical barrel, and the sampling bag is preferably a disposable cylindrical plastic bag, the bottom of the sampling bag is at least 5 cm lower than the bottom of the sampling barrel, and the distance between the bottom of the sampling bag and the bottom of the sampling barrel can be appropriately adjusted according to the sampling amount of paint.

[0007] Preferably, the rod body is a threaded rod, the threaded rod is screwed onto the rod frame, and the bottom of the threaded rod is rotatably connected to the top of the piston; further, a bearing is embedded in the top of the piston, and the bottom end of the threaded rod is interference fit in the bearing.

[0008] Preferably, a conical flow guide cover is installed at the bottom of the sampling tube, with the small-diameter end of the conical flow guide cover facing upward, and a through-hole is provided at the small-diameter end of the conical flow guide cover; a storage cavity is formed between the outer wall of the conical flow guide cover and the inner wall of the sampling tube; further, the volume of the storage cavity should be larger than the standard sampling amount of the paint.

[0009] Preferably, a V-shaped groove is provided at the bottom of the piston, and the large-diameter end of the V-shaped groove faces downward.

[0010] Preferably, a cone mouth is provided at the inner bottom wall of the sampling bag.

[0011] Preferably, the clamping member includes two arm frames and an elastic connecting member hingedly installed on the outer wall of the sampling barrel, the two arm frames are elastically connected by the elastic connecting member, the arm frames are provided with a semi-annular clamping portion that fits with the outer wall of the sampling barrel, and the sampling bag is clamped between the sampling barrel and the semi-annular clamping portion; further, the elastic connecting member is preferably a tension spring, and an elastic belt or other connecting member with an elastic reset effect may also be used.

[0012] Preferably, a pressing plate is provided on the boom frame, the pressing plate is fixedly connected to the boom frame, and an anti-slip portion is provided on the pressing plate; further, the anti-slip portion may adopt an inner concave pattern or an outer convex pattern; other rubber pads with anti-slip effects may also be adopted.

[0013] Compared with the prior art, the present invention provides a paint sampler with the following beneficial effects: in the initial state of the paint sampler, the piston is located at the bottom of the sampling cylinder, and the inner bottom wall of the sampling bag is in close contact with the bottom of the sampling cylinder and the bottom of the piston. The bottom of the sampling cylinder is extended below the paint liquid level, and the piston is driven to move up along the inner wall of the sampling cylinder by the rod body. The bottom of the sampling bag together with the paint is sucked into the sampling cylinder, and the sampling cylinder is taken out of the paint and inverted. At the same time, the sampling bag is separated from the clamping of the clamping part, and the piston is removed from the bottom of the sampling cylinder in the inverted state. The sampling bag is completely turned over inside and outside, and the paint is located inside the inverted sampling bag. The paint in the sampling bag can be taken and tested, and the side with the paint is located inside, while the outside of the sampling bag is in a clean state. During the whole process, the paint and the sampling cylinder are in a non-contact state, which effectively solves the problem of paint attached to the wall being difficult to clean. The sampler is reusable and improves the convenience and cleanliness of paint sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a front planar structural diagram of the present invention;

[0016] Figure 3 This utility model Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0017] Markings in the attached figure: 1. sampling cylinder; 2. piston; 3. rod holder; 4. sampling bag; 5. threaded rod; 6. conical air guide cover; 7. through-port; 8. V-shaped groove; 9. conical mouth; 10. boom frame; 11. elastic connecting piece; 12. semi-ring clamping part; 13. pressing plate; 14. anti-slip part. DETAILED DESCRIPTION

[0018] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0019] For example, a paint detection sampling device in the background technology; after the sampler samples a paint, the inner and outer walls are easily adhered to by the paint. Since the paint has good adhesion, it is difficult to clean. The sampler is often used as a disposable sampling tool, resulting in waste.

[0020] In order to solve this technical problem, the utility model provides a paint sampler, which is used for sampling liquid paint.

[0021] Specifically, please refer to Figure 1-3The paint sampler specifically comprises: a sampling cylinder 1, a piston 2 slidably mounted in the sampling cylinder 1, a rod frame 3 fixedly connected to the sampling cylinder 1, a rod body connected to the piston 2 and slidably mounted on the rod frame 3, a sampling bag 4 and a clamping member mounted on the sampling cylinder 1 and used to clamp the sampling bag 4. The upper and lower parts of the sampling cylinder 1 are both provided with openings, and the sampling bag 4 is sleeved on the bottom of the sampling cylinder 1; further, the clamping member can be an elastic band, such as a rubber band, or other equivalent members that have a clamping effect on the sampling bag 4; the sampling cylinder 1 is preferably a column shaped cylinder, the sampling bag 4 is preferably a disposable cylindrical plastic bag, the bottom of the sampling bag 4 is at least 5 cm lower than the bottom of the sampling cylinder 1, and the distance between the bottom of the sampling bag 4 and the bottom of the sampling cylinder 1 can be appropriately adjusted according to the sampling amount of the paint; it should be noted that before the sampling operation, the sampling bag 4 is folded and wrapped around the outer wall of the sampling cylinder 1, and the inner bottom of the sampling bag 4 is in close contact with the inner bottom of the sampling cylinder 1. During the sampling process, the sampling bag 4 is slowly sucked into the sampling cylinder 1 along with the paint to reduce excessive air entering the sampling bag 4 during the paint sampling process.

[0022] The paint sampler provided by the utility model is in a non-contact state between the paint and the sampling tube 1 during the entire process, which effectively solves the problem of paint adhering to the wall and being difficult to clean. The sampler is reusable and improves the convenience and cleanliness of paint sampling.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] Example 1

[0026] Please refer to Figure 1-3 A paint sampler includes a sampling cylinder 1, a piston 2 slidably mounted in the sampling cylinder 1, a rod frame 3 fixedly connected to the sampling cylinder 1, a rod body connected to the piston 2 and slidably mounted on the rod frame 3, a sampling bag 4, and a clamping member mounted on the sampling cylinder 1 and used to clamp the sampling bag 4. The sampling cylinder 1 is provided with openings at the upper and lower parts, and the sampling bag 4 is sleeved on the bottom of the sampling cylinder 1.

[0027] The rod body is a threaded rod 5, which is screwed onto the rod frame 3, and the bottom of the threaded rod 5 is rotatably connected to the top of the piston 2; further, a bearing is embedded in the top of the piston 2, and the bottom end of the threaded rod 5 is interference fit in the bearing.

[0028] For details, please refer to Figure 3A conical flow guide cover 6 is installed at the bottom of the sampling tube 1, with the small-diameter end of the conical flow guide cover 6 facing upward, and a through-hole 7 is provided at the small-diameter end of the conical flow guide cover 6; a storage cavity is formed between the outer wall of the conical flow guide cover 6 and the inner wall of the sampling tube 1; further, the volume of the storage cavity should be greater than the standard sampling amount of the paint.

[0029] For details, please refer to Figure 3 A V-shaped groove 8 is provided at the bottom of the piston 2, with the large-diameter end of the V-shaped groove 8 facing downward.

[0030] A cone mouth 9 is provided at the inner bottom wall of the sampling bag 4 .

[0031] The present embodiment provides a paint sampler, which drives the piston 2 to move axially along the sampling tube 1 by rotating the threaded rod 5. When the threaded rod 5 stops rotating, the piston 2 stops; the threaded rod 5 can accurately control the movement stroke of the piston 2 to ensure smooth sampling of the paint and prevent the sampled paint from spilling due to the self-movement of the piston 2; the sampling bag 4 and the paint enter the storage chamber through the through-hole 7 on the conical guide cover 6. When the sampling tube 1 is detached from the paint liquid surface, the conical guide cover 6 can effectively reduce the outflow of the paint and ensure that the sampling amount of the paint is sufficient; and when the sampling tube 1 is inverted, the conical guide cover 6 can be used to The sampling bag 4 is sealed with a V-shaped groove 8 to prevent the paint from flowing out of the sampling bag 4. The sampling tube 1 is inverted and the paint is located in the V-shaped groove 8 to prevent the paint from flowing around under the action of gravity. The V-shaped groove 8 on the piston 2 effectively supports the sampling bag 4 to prevent the sampling bag 4 from directly detaching from the sampling tube 1, so that the operator can seal the sampling bag 4 and move the sampling bag 4 out smoothly. After the sampling bag 4 containing the paint is moved out of the sampling tube 1, an opening can be cut at the conical mouth with scissors. Under the action of the conical mouth 9, the paint in the sampling bag 4 can be accurately added to the experimental container and other utensils to reduce the dripping of the paint.

[0032] Example 2

[0033] The coating sampler provided in Example 1 is further optimized, specifically, as Figure 1-3 As shown, the clamping member includes two arm frames 10 and an elastic connecting member 11 hingedly mounted on the outer wall of the sampling barrel 1. The two arm frames 10 are elastically connected by the elastic connecting member 11. The arm frames 10 are provided with a semi-annular clamping portion 12 that fits with the outer wall of the sampling barrel 1. The sampling bag 4 is clamped between the sampling barrel 1 and the semi-annular clamping portion 12. Furthermore, the elastic connecting member 11 is preferably a tension spring, and an elastic belt or other connecting member with an elastic reset effect can also be used.

[0034] A pressing plate 13 is provided on the boom frame 10, and the pressing plate 13 is fixedly connected to the boom frame 10. An anti-slip portion 14 is provided on the pressing plate 13; further, the anti-slip portion 14 can adopt an inner concave pattern or an outer convex pattern; other rubber pads with anti-slip effects can also be adopted.

[0035] The paint sampler provided in this embodiment has a sampling bag 4 sleeved on the outer wall of the sampling tube 1. Under the action of the elastic connecting part 11, the semi-annular clamping parts 12 on the two boom frames 10 tightly press the sampling bag 4 against the outer wall of the sampling tube; and the operator can easily drive the boom frames 10 by pressing the two pressing plates 13 with the index finger and thumb, so that the two boom frames 10 are separated from each other, thereby realizing rapid replacement of the sampling bag 4 and improving operational convenience.

[0036] The use process of the paint sampler provided by the present invention is as follows: in the initial state, the piston 2 is located at the bottom of the sampling cylinder 1, the sampling bag 4 is sleeved on the outer wall of the sampling cylinder 1 and clamped by the clamping piece, the remaining part of the sampling bag 4 is folded and covered on the outer wall of the sampling cylinder 1, the inner bottom wall of the sampling bag 4 is in close contact with the bottom of the sampling cylinder 1 and the bottom of the piston 2, the bottom of the sampling cylinder 1 is extended below the paint liquid level, the piston 2 is driven by the rod body to move up along the inner wall of the sampling cylinder 1, and the bottom of the sampling bag 4 together with the paint is sucked into the sampling cylinder The sampling tube 1 enters the storage chamber between the conical flow guide cover 6 and the sampling tube 1, the sampling tube 1 is taken out from the paint and inverted, and the sampling bag 4 is separated from the clamping of the clamped part, the piston 2 is moved out from the bottom of the inverted sampling tube 1, the sampling bag 4 is completely turned over inside and outside, and the paint is located inside the inverted sampling bag 4, and the paint in the sampling bag 4 is located in the V-shaped groove 8, the sampling bag 4 is completely removed from the sampling tube 1, the cone mouth 9 is cut open with scissors, and the paint in the sampling bag 4 is taken out for testing.

[0037] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A paint sampler, characterized in that: The invention comprises a sampling barrel (1), a piston (2) slidably mounted in the sampling barrel (1), a rod frame (3) fixedly connected to the sampling barrel (1), a rod body connected to the piston (2) and slidably mounted on the rod frame (3), a sampling bag (4), and a clamping member mounted on the sampling barrel (1) and used to clamp the sampling bag (4); the upper and lower parts of the sampling barrel (1) are both provided with openings, and the sampling bag (4) is sleeved on the bottom of the sampling barrel (1).

2. The paint sampler according to claim 1, characterized in that: The rod body is a threaded rod (5), which is screwed onto the rod frame (3), and the bottom of the threaded rod (5) is rotatably connected to the top of the piston (2).

3. The paint sampler according to claim 2, characterized in that: A conical flow guide cover (6) is installed at the bottom of the sampling tube (1), the small-diameter end of the conical flow guide cover (6) faces upward, and a through-hole (7) is provided at the small-diameter end of the conical flow guide cover (6); a storage cavity is formed between the outer wall of the conical flow guide cover (6) and the inner wall of the sampling tube (1).

4. The paint sampler according to claim 1 or 3, characterized in that: A V-shaped groove (8) is provided at the bottom of the piston (2), with the large-diameter end of the V-shaped groove (8) facing downward.

5. The paint sampler according to claim 1, characterized in that: A cone mouth (9) is provided at the inner bottom wall of the sampling bag (4).

6. The paint sampler according to claim 1, characterized in that The clamping member comprises two arm supports (10) and an elastic connecting member (11) hingedly mounted on the outer wall of the sampling barrel (1); the two arm supports (10) are elastically connected via the elastic connecting member (11); a semi-annular clamping portion (12) is provided on the arm support (10) and is fitted with the outer wall of the sampling barrel (1); and the sampling bag (4) is clamped between the sampling barrel (1) and the semi-annular clamping portion (12).

7. The paint sampler according to claim 6, characterized in that: A pressing plate (13) is provided on the boom frame (10), the pressing plate (13) is fixedly connected to the boom frame (10), and an anti-slip portion (14) is provided on the pressing plate (13).

Images