Sampling device for waterborne polyurethane

Abstract

The utility model relates to the technical field of production and processing of waterborne polyurethane, in particular to a sampling device for waterborne polyurethane, which comprises a handheld main body, a hydraulic cylinder is fixedly mounted on the inner wall of the handheld main body, a hydraulic rod is fixedly mounted on an output pipe of the hydraulic cylinder, a sliding block is fixedly mounted at one end of the hydraulic rod, which is opposite to the hydraulic cylinder; the sliding block is slidably connected with the inner wall of the handheld main body, two lantern ring assemblies are fixedly mounted on the top surface of the handheld main body, the inner walls of the two lantern ring assemblies are sleeved with samplers, a sampling opening is fixedly formed in the left end of the handheld main body, and a filter screen is fixedly mounted at the left end of the sampling opening. According to the water-based polyurethane sampling device, the filter screen is matched with the scraper, so that impurities in water-based polyurethane are prevented from entering the sampling port and the cabin to cause blockage of the device, the cleaning work of workers is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of waterborne polyurethane production and processing, in particular to a sampling device for waterborne polyurethane. Background Art

[0002] Waterborne polyurethane is a new type of polyurethane system that uses water instead of organic solvents as a dispersion medium. Waterborne polyurethane uses water as a solvent and has the advantages of being pollution-free, safe and reliable, having excellent mechanical properties, good compatibility, and easy to modify. Waterborne polyurethane can be divided into polyurethane emulsion, polyurethane dispersion, and polyurethane aqueous solution according to its appearance. Waterborne polyurethane resins are widely used in coatings, adhesives, and treatment agents. Polyurethane aqueous solutions need to be sampled and tested during the production process.

[0003] After searching, a sampling device for water-based polyurethane (CN219977883U) includes a support device, and the outer annular array of the support device is installed with a sampling component, and the support device includes a support base, a fixed plate and a top rod. The utility model can adjust the three sampling components to three different heights, so as to facilitate the sampling of water-based polyurethane in the upper, middle and lower three-layer areas in the tank body. In subsequent detection, the water-based polyurethane in the three sampling devices can be detected separately, and the water-based polyurethane in the three sampling devices can also be mixed for detection, so that the detection result of the water-based polyurethane is more accurate and the accuracy of the detection is increased. By setting the sampling component, the support device is moved upward after the sampling is completed, and then the movable ring and the fixed rod are pushed downward, so that the sealing plate is rotated inward and closed. The sealing plate can prevent the water-based polyurethane in the storage tube from dripping downward, which is convenient for use.

[0004] However, there are some problems with the current sampling device for water-based polyurethane. During use, the sampling device for water-based polyurethane may extract some impurities in the water-based polyurethane into the device, which may cause blockage inside the device. It is more troublesome to clean up, which increases the workload of the staff and reduces the service life of the device. In view of this, we propose a sampling device for water-based polyurethane. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a waterborne polyurethane sampling device, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a waterborne polyurethane sampling device, comprising a handheld body, a hydraulic cylinder is fixedly installed on the inner wall of the handheld body, a hydraulic rod is fixedly installed on the output pipe of the hydraulic cylinder, a slider is fixedly installed on one end of the hydraulic rod principle hydraulic cylinder, the slider is slidably connected with the inner wall of the handheld body, two collar assemblies are fixedly installed on the top surface of the handheld body, and the inner walls of the two collar assemblies are sleeved with samplers, a sampling port is fixedly installed on the left end of the handheld body, a filter is fixedly installed on the left end of the sampling port, a rotating rod is rotatably installed on the inner wall of the filter, an impeller is fixedly installed on the end of the rotating rod close to the sampler, and a scraper is fixedly installed on the end of the rotating rod away from the impeller.

[0006] Preferably, the ring assembly includes a movable ring, an elastic buckle, a fixed buckle, and a fixed ring. The fixed ring is fixedly mounted on the top surface of the handheld body, the front end of the movable ring is hinged to the front end outer surface of the fixed ring, the fixed buckle is fixedly mounted on the rear end outer surface of the fixed ring, the elastic buckle is fixedly mounted on the rear end outer surface of the movable ring, and the elastic buckle and the fixed buckle are buckled.

[0007] Preferably, the sampler comprises a chamber, a piston and a pull rod, the chamber is sleeved between two movable rings and two fixed rings, the piston is slidably mounted on the inner wall of the chamber, and the pull rod is fixedly mounted on the right side of the piston.

[0008] Preferably, a notch is provided on the top of the sliding block, and the notch is slidably connected to the outer wall of the pull rod.

[0009] Preferably, the right side of the sampling port is slidably connected to the left side of the cabin, and the sampling port and the cabin are both provided with through holes of the same size, and the positions of the two through holes coincide.

[0010] Preferably, the impeller is located inside the sampling port, and the scraper is slidably connected to the left side of the filter screen.

[0011] Preferably, a stirring device is provided inside the handheld body, and the stirring device includes a force transmission block, a ball screw, and a stirring wheel. The force transmission block is fixedly mounted on the bottom surface of the slider, the ball screw is rotatably mounted on the inner wall of the handheld body, and the stirring wheel is fixedly mounted on the right end of the ball screw.

[0012] Preferably, the inner wall of the force transmission block 81 is provided with balls, and the inner wall of the transmission block is slidably connected to the surface of the ball screw through the balls.

[0013] It can be seen from the above technical solutions that the waterborne polyurethane sampling device provided in the embodiments of this specification has at least the following beneficial effects:

[0014] (1) The utility model prevents impurities in the water-based polyurethane from entering the sampling port and the chamber through the cooperation of the filter screen and the scraper, thereby preventing the device from being blocked, reducing the cleaning work of the staff, and extending the service life of the device. Through the setting of the collar assembly and the sampler, the sampler can be quickly replaced, which is convenient for the staff to perform multiple sampling operations and speeds up the work efficiency.

[0015] (2) The utility model provides a stirring device so that the stirring wheel can stir the water-based polyurethane it contacts during the sampling process, so that the water-based polyurethane extracted from the sampling port is more uniform, thereby avoiding uneven sampling caused by uneven texture of the water-based polyurethane after long-term storage, which affects the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the handheld main body of the utility model;

[0019] Figure 3 For this utility model Figure 3 A magnified schematic diagram of point A;

[0020] Figure 4 It is a structural schematic diagram of the sampler of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the collar assembly of the utility model.

[0022] In the figure: 1. handheld body; 2. hydraulic cylinder; 3. hydraulic rod; 4. slider; 5. collar assembly; 51. movable ring; 52. elastic buckle; 53. fixed buckle; 54. fixed ring; 6. sampler; 61. cabin; 62. piston; 63. pull rod; 7. sampling port; 8. stirring device; 81. force transfer block; 82. ball screw; 83. stirring wheel; 9. filter screen; 10. rotating rod; 11. impeller; 12. scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0024] See also Figure 1-Figure 5 As shown, a water-based polyurethane sampling device comprises a handheld body 1, a hydraulic cylinder 2 is fixedly installed on the inner wall of the handheld body 1, a hydraulic rod 3 is fixedly installed on the output pipe of the hydraulic cylinder 2, a slider 4 is fixedly installed on one end of the hydraulic cylinder 2 of the hydraulic rod 3, the slider 4 is slidably connected to the inner wall of the handheld body 1, two collar assemblies 5 are fixedly installed on the top surface of the handheld body 1, the inner walls of the two collar assemblies 5 are sleeved with samplers 6, a sampling port 7 is fixedly installed on the left end of the handheld body 1, a filter screen 9 is fixedly installed on the left end of the sampling port 7, and the inner surface of the filter screen 9 is fixedly connected to the inner wall of the handheld body 1. The wall is rotatably mounted with a rotating rod 10, an end of the rotating rod 10 close to the sampler 6 is fixedly mounted with an impeller 11, and an end of the rotating rod 10 away from the impeller 11 is fixedly mounted with a scraper 12. The sampler 6 includes a chamber 61, a piston 62, and a pull rod 63. The chamber 61 is sleeved between two movable rings 51 and two fixed rings 54. The piston 62 is slidably mounted on the inner wall of the chamber 61. The pull rod 63 is fixedly mounted on the right side of the piston 62. The right side of the sampling port 7 is slidably connected to the left side of the chamber 61. The sampling port 7 and the chamber 61 are both provided with through holes of the same size, and the two The positions of the through holes coincide, the impeller 11 is located inside the sampling port 7, the scraper 12 is slidably connected to the left side of the filter screen 9, the filter screen 9 filters the water-based polyurethane passing through the sampling port 7 to prevent impurities from entering the device and causing blockage, and the water-based polyurethane will drive the impeller 11 to rotate during the process of passing through the sampling port 7, the impeller 11 drives the scraper 12 to rotate through the rotating rod 10, and the scraper 12 cleans the surface of the filter screen 9 by rotating to prevent the filter screen 9 from being blocked, the collar assembly 5 includes a movable ring 51, an elastic buckle 52, a fixed buckle 53, and a fixed Ring 54, the fixed ring 54 is fixedly installed on the top surface of the handheld body 1, the front end of the movable ring 51 is hinged on the front end outer surface of the fixed ring 54, the fixed buckle 53 is fixedly installed on the rear end outer surface of the fixed ring 54, the elastic buckle 52 is fixedly installed on the rear end outer surface of the movable ring 51, the elastic buckle 52 and the fixed buckle 53 are buckled, and a slot is opened on the top of the slider 4, and the slot is slidably connected with the outer wall of the pull rod 63. Through the setting of the ring assembly 5, the sampler 6 can be quickly disassembled and installed, which is convenient for the staff to replace the sampler 6 and perform multiple sampling operations.

[0025] In this embodiment, the filter screen 9 and the scraper 12 are provided to prevent impurities in the water-based polyurethane from entering the sampling port 7 and the chamber 61 to cause blockage of the device, thereby reducing the cleaning work of the staff and extending the service life of the device. Through the provision of the ring assembly 5 and the sampler 6, the sampler 6 can be quickly replaced, which facilitates the staff to perform multiple sampling operations and speeds up work efficiency. Example 2

[0026] See also Figure 1-Figure 2As shown, a stirring device 8 is provided inside the handheld main body 1, and the stirring device 8 includes a force transmission block 81, a ball screw 82, and a stirring wheel 83. The force transmission block 81 is fixedly installed on the bottom surface of the slider 4, and the ball screw 82 is rotatably installed on the inner wall of the handheld main body 1. The stirring wheel 83 is fixedly installed on the right end of the ball screw 82. The inner wall of the force transmission block 81 is provided with balls, and the inner wall of the transmission block 81 is slidably connected with the surface of the ball screw 82 through the balls. The slider 4 pushes the force transmission block 81 during the sliding process, and the force transmission block 81 drives the ball screw 82 to rotate, and the ball screw 82 drives the stirring wheel 83 to rotate, so that the stirring wheel 83 stirs the water-based polyurethane it contacts during the sampling process, so that the water-based polyurethane extracted by the sampling port 7 is more uniform, so as to avoid uneven sampling caused by uneven texture of the water-based polyurethane after long-term storage, thereby affecting the detection result.

[0027] In this embodiment, the stirring device 8 is provided so that the stirring wheel 83 stirs the aqueous polyurethane it contacts during the sampling process, so that the aqueous polyurethane extracted by the sampling port 7 is more uniform, thereby avoiding uneven sampling caused by uneven texture of the aqueous polyurethane after long-term storage, which affects the detection results.

[0028] Working principle: the staff holds the handheld body 1 in the hand, immerses the sampling port 7 in the water-based polyurethane, starts the hydraulic cylinder 2, and the hydraulic cylinder 2 pushes the hydraulic rod 3 to move rightward. The hydraulic rod 3 pushes the slider 4 to move rightward. When the slider 4 moves to the right, it drives the piston 62 to move rightward through the pull rod 63. Due to the negative pressure, the cabin 61 extracts the water-based polyurethane into the interior through the sampling port 7. In the process of the water-based polyurethane passing through the inner wall of the sampling port 7, the filter 9 filters the water-based polyurethane to prevent impurities from entering the cabin 61. Due to the liquid resistance, the water-based polyurethane will drive the impeller 11 to rotate, so that the impeller 11 drives the scraper 12 to rotate through the rotating rod 10. The scraper 12 continuously cleans the surface of the filter 9 through the rotation to prevent the filter 9 from In case of blockage, after sampling is completed, if sampling is required again, the two elastic buckles 52 can be pushed apart to make the connection between the two elastic buckles 52 and the two fixed buckles 53 lose connection, and then the two movable rings 51 can be opened, the sampler 6 can be removed and replaced with a spare sampler 6. After the spare sampler 6 is installed in the same way, the second sampling operation can be carried out. Through the cooperation of the filter screen 9 and the scraper 12, impurities in the water-based polyurethane are prevented from entering the sampling port 7 and the chamber 61 to cause blockage of the device, thereby reducing the cleaning work of the staff and extending the service life of the device. Through the setting of the ring assembly 5 and the sampler 6, the sampler 6 can be quickly replaced, which is convenient for the staff to carry out multiple sampling operations and speeds up the work efficiency.

[0029] When the slider 4 moves to the right, the slider 4 drives the force transmission block 81 to move to the right. Due to the sliding connection between the ball inside the force transmission block 81 and the ball screw 82, the force transmission block 81 drives the ball screw 82 to rotate during the rightward movement. When the ball screw 82 rotates, it drives the stirring wheel 83 to rotate. During the sampling process, the stirring wheel 83 stirs the water-based polyurethane it contacts, so that the water-based polyurethane extracted by the sampling port 7 is more uniform, thereby avoiding uneven sampling caused by uneven texture of the water-based polyurethane after long-term storage, which affects the detection results.

[0030] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. A sampling device for waterborne polyurethane, comprising a handheld body (1), characterized in that: A hydraulic cylinder (2) is fixedly mounted on the inner wall of the handheld body (1), a hydraulic rod (3) is fixedly mounted on the output pipe of the hydraulic cylinder (2), a slider (4) is fixedly mounted on one end of the hydraulic cylinder (2) of the hydraulic rod (3), the slider (4) is slidably connected to the inner wall of the handheld body (1), two collar assemblies (5) are fixedly mounted on the top surface of the handheld body (1), the inner walls of the two collar assemblies (5) are both sleeved with a sampler (6), a sampling port (7) is fixedly mounted on the left end of the handheld body (1), a filter screen (9) is fixedly mounted on the left end of the sampling port (7), a rotating rod (10) is rotatably mounted on the inner wall of the filter screen (9), an impeller (11) is fixedly mounted on one end of the rotating rod (10) close to the sampler (6), and a scraper (12) is fixedly mounted on one end of the rotating rod (10) away from the impeller (11).

2. A sampling device for waterborne polyurethane according to claim 1, characterized in that: The sleeve ring assembly (5) comprises a movable ring (51), an elastic buckle (52), a fixed buckle (53), and a fixed ring (54); the fixed ring (54) is fixedly mounted on the top surface of the handheld body (1); the front end of the movable ring (51) is hinged to the front end outer surface of the fixed ring (54); the fixed buckle (53) is fixedly mounted on the rear end outer surface of the fixed ring (54); the elastic buckle (52) is fixedly mounted on the rear end outer surface of the movable ring (51); and the elastic buckle (52) and the fixed buckle (53) are buckled.

3. A sampling device for waterborne polyurethane according to claim 2, characterized in that: The sampler (6) comprises a chamber (61), a piston (62), and a pull rod (63); the chamber (61) is sleeved between two movable rings (51) and two fixed rings (54); the piston (62) is slidably mounted on the inner wall of the chamber (61); and the pull rod (63) is fixedly mounted on the right side of the piston (62).

4. A sampling device for waterborne polyurethane according to claim 3, characterized in that: The top of the sliding block (4) is provided with a notch, and the notch is slidably connected to the outer wall of the pull rod (63).

5. A sampling device for waterborne polyurethane according to claim 4, characterized in that: The right side of the sampling port (7) is slidably connected to the left side of the chamber (61); the sampling port (7) and the chamber (61) are both provided with through holes of the same size, and the positions of the two through holes overlap.

6. A sampling device for waterborne polyurethane according to claim 5, characterized in that: The impeller (11) is located inside the sampling port (7), and the scraper (12) is slidably connected to the left side of the filter screen (9).

7. A sampling device for waterborne polyurethane according to claim 6, characterized in that: A stirring device (8) is arranged inside the handheld body (1), and the stirring device (8) comprises a force transmission block (81), a ball screw (82), and a stirring wheel (83), wherein the force transmission block (81) is fixedly mounted on the bottom surface of the slider (4), the ball screw (82) is rotatably mounted on the inner wall of the handheld body (1), and the stirring wheel (83) is fixedly mounted on the right end of the ball screw (82).

8. A sampling device for waterborne polyurethane according to claim 7, characterized in that: The inner wall of the force transmission block (81) is provided with a ball bearing, and the inner wall of the force transmission block (81) is slidably connected to the surface of the ball screw (82) via the ball bearing.

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