A polyurethane waterproof coating fluidity detection device

Abstract

The present invention belongs to the technical field of waterproof coating detection equipment, and in particular, relates to a polyurethane waterproof coating fluidity detection device, comprising a carrying box, a flow channel is fixedly installed on the top of the carrying box, an axial flow fan blade is rotatably installed inside the flow channel, and a funnel is fixedly installed on the top of the flow channel; an automatic detection mechanism, the automatic detection mechanism is fixedly installed at the bearing of the axial flow fan blade, and is used to automatically measure the time required for the waterproof coating to flow out completely. The present invention sets an automatic detection mechanism. During detection, the impact force generated by the flow of the waterproof coating will drive the axial flow fan blade to rotate, and then the liquid storage chamber and the centrifugal sleeve will rotate. Under the action of centrifugal force, the piston block slides in the centrifugal sleeve, so that the first conductive sheet contacts the second conductive sheet, and the timer starts timing, automatically measuring the time required for the waterproof coating to flow out completely, and detecting its fluidity according to the time when the waterproof coating flows out.

Description

Technical Field

[0001] The invention belongs to the technical field of waterproof coating detection equipment, and in particular relates to a fluidity detection device for polyurethane waterproof coating. Background Art

[0002] Polyurethane waterproof coating is a single-component polyurethane made by mixing and other processes, including prepolymers containing isocyanate groups formed by addition polymerization of isocyanate, polyether, etc., with catalysts, anhydrous additives, anhydrous fillers, solvents, etc. Among them, the fluidity of polyurethane waterproof coating refers to the flowability of the coating during coating or construction. Good fluidity can ensure that the coating is evenly distributed on the coating surface, thereby improving the quality and effect of the coating. Therefore, in the production process of polyurethane waterproof coating, it is often necessary to test the fluidity of the coating through a detection device.

[0003] However, the existing detection devices usually have the following technical problems during use:

[0004] 1. During the test, the staff is required to manually time the time required for the waterproof coating to flow out. Due to the staff's reaction problems, the test of the fluidity of the waterproof coating is prone to large errors;

[0005] 2. During the test, the test method for the fluidity of waterproof coatings is relatively simple, resulting in low test accuracy;

[0006] 3. During the detection process, the funnel cannot be cleaned in real time, which causes the paint to easily adhere to the inner wall of the funnel. This not only reduces the amount of paint detected and reduces the test results, but also causes great inconvenience to the subsequent cleaning work. Summary of the invention

[0007] The purpose of the present invention is to address the problems raised in the above-mentioned background technology and to provide a polyurethane waterproof coating fluidity detection device that can automatically measure the time required for the waterproof coating to completely flow out, and at the same time realize a dual detection of the fluidity of the polyurethane waterproof coating through the mutual confirmation of the liquid level change in the measuring cylinder and the timer reading.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A polyurethane waterproof coating fluidity detection device, comprising:

[0010] A carrying box, a flow channel is fixedly installed on the top of the carrying box, an axial flow fan blade is rotatably installed inside the flow channel, and a funnel is fixedly installed on the top of the flow channel;

[0011] An automatic detection mechanism, the automatic detection mechanism is fixedly mounted on the bearing of the axial flow fan blade, and is used to automatically measure the time required for the waterproof coating to completely flow out, the automatic detection mechanism includes a liquid storage chamber fixedly mounted on the bearing of the axial flow fan blade;

[0012] A centrifugal metering mechanism is provided above the carrying box, and the centrifugal metering mechanism cooperates with the automatic detection mechanism to perform double detection on the waterproof coating, and the centrifugal metering mechanism includes a metering cylinder fixedly installed above the carrying box, and a liquid infusion tube is fixedly installed on the side wall of the metering cylinder, and the liquid infusion tube is sealed and rotatably installed on the liquid storage chamber, and the metering cylinder is connected with the interior of the liquid storage chamber through the liquid infusion tube;

[0013] A cleaning mechanism, the cleaning mechanism is arranged above the funnel and is used for cleaning the waterproof coating in the funnel, the cleaning mechanism comprises a fixed plate fixedly mounted above the carrying box, the lower wall of the fixed plate is provided with an annular groove, two telescopic rods are rotatably mounted in the annular groove, a gear ring is fixedly mounted at the bottom of the two telescopic rods, a transmission rod is rotatably mounted on the outer wall of the flow channel through a mounting plate, a first gear is mounted on the top of the transmission rod through a spline, two limit plates are fixed on the upper and lower outer circumferential surface of the gear ring, the first gear is located between the two limit plates and meshes with the gear ring, a scraping rod is hingedly connected to the lower wall of the gear ring through a hinge seat, a swinging mechanism is provided on the gear ring, and the swinging mechanism is used to ensure the cleanliness of the scraping rod surface to improve the cleaning effect on the inner wall of the funnel;

[0014] The swinging mechanism includes an L-shaped plate fixedly mounted on the gear ring, a guide wheel is rotatably mounted on the L-shaped plate, a guide ring plate is fixedly mounted below the fixed plate, a plurality of trapezoidal protrusions are provided on the guide ring plate, the guide wheel contacts and rolls with the guide ring plate and the trapezoidal protrusions, a second gear is fixedly mounted on the bearing of the scraping rod, a lifting block is elastically connected to the lower part of the gear ring through a second spring, a rack is fixedly mounted on the lifting block, the rack and the second gear are meshed with each other, a ratchet block is fixedly mounted above the rack through a connecting rod, two stoppers are fixedly mounted above the gear ring, each of the stoppers is elastically connected to a ratchet plate through a third spring, the two ratchet plates respectively cooperate with two sides of the ratchet block, a convex plate is fixedly mounted on the top of each ratchet plate, and an annular stop block is fixedly mounted below the fixed plate.

[0015] Preferably, a plurality of centrifugal sleeves are fixedly mounted on the peripheral side walls of the liquid storage chamber, a piston block is sealingly and slidably mounted in each of the centrifugal sleeves, each of the piston blocks is elastically connected to the inner wall of the centrifugal sleeve via a first spring, a counterweight block is fixedly mounted on each of the piston blocks via a push rod, a first conductive sheet is embedded on the side wall of the piston block, a second conductive sheet is embedded on the inner wall of the centrifugal sleeve, a timer is provided above the carrying box, and the first conductive sheet, the second conductive sheet and the timer are electrically connected.

[0016] Preferably, the infusion tube is transparent, and scale lines are provided on the outer wall of the infusion tube.

[0017] Preferably, the metering cylinder, the infusion tube, the liquid storage chamber and the centrifugal sleeve are all filled with metering liquid.

[0018] Preferably, a worm wheel is fixedly mounted on the transmission rod, and a worm is fixedly mounted on one end of the axial flow fan blade bearing close to the worm wheel, and the worm wheel and the worm are meshed with each other.

[0019] Compared with the existing technology, the advantages of the polyurethane waterproof coating fluidity detection device are:

[0020] 1. The present invention is provided with an automatic detection mechanism. During the detection, the polyurethane waterproof coating is transported into the funnel and flows into the inside of the carrying box through the flow channel. In this process, the impact force generated when the waterproof coating flows will drive the axial flow fan blades to rotate, and then the liquid storage chamber and the centrifugal sleeve to rotate. Under the action of centrifugal force, the piston block slides in the centrifugal sleeve, so that the first conductive sheet contacts the second conductive sheet, and the timer starts timing, automatically measuring the time required for the waterproof coating to completely flow out. The fluidity of the waterproof coating is detected according to the time when the waterproof coating flows out, so as to avoid large errors caused by reaction problems during manual operation by staff.

[0021] 2. The present invention provides a centrifugal metering mechanism. When the fluidity of the coating is good, the rotation speed of the axial flow fan blades can be increased, so that the centrifugal force is greater, and the piston block is further moved a greater distance in the centrifugal sleeve, and more metering liquid in the metering cylinder is pumped into the liquid storage chamber through the infusion tube, so that the fluidity of the coating can be calculated by the change of the liquid level in the metering cylinder. Through the mutual confirmation of the change of the liquid level and the timer reading, the dual detection of the fluidity of the polyurethane waterproof coating is realized, thereby improving the accuracy of the fluidity detection.

[0022] 3. The present invention provides a cleaning mechanism. During the fluidity test of the paint, the first gear can be driven to rotate by the rotation of the transmission rod, so that the gear ring can drive the scraping rod below it to perform a circular motion along the inner wall of the funnel, thereby cleaning the inner wall of the funnel, avoiding the paint from adhering to the inner wall of the funnel, resulting in a reduction in the amount of waterproof paint tested, affecting the test results of the paint fluidity, and avoiding the inconvenience of subsequent cleaning work.

[0023] 4. The present invention provides a swinging mechanism, and the rotation of the gear ring will also drive the guide wheel to move along the guide ring plate, so that the trapezoidal protrusion intermittently pushes the gear ring to move upward, and the scraper rod intermittently moves to the top of the funnel, and then the two convex plates are squeezed and pushed away from each other by the annular resistance block, so that the two ratchet plates no longer clamp the ratchet block, so that the lifting block under the ratchet block can quickly rise under the elastic force of the second spring, and the second gear is driven to rotate quickly by the rack, so that the scraper rod can swing quickly, and the paint on it is thrown into the funnel, thereby ensuring the cleanliness of the scraper rod surface and improving the cleaning effect of the inner wall of the funnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the fluidity detection device for polyurethane waterproof coating provided by the present invention;

[0025] Figure 2 It is a cross-sectional view of a flow channel in a fluidity detection device for a polyurethane waterproof coating provided by the present invention;

[0026] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 It is a partial structural schematic diagram of a cleaning mechanism in a polyurethane waterproof coating fluidity detection device provided by the present invention;

[0028] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0029] Figure 6 yes Figure 4 Enlarged view of point C in the middle;

[0030] Figure 7 It is a three-dimensional structural schematic diagram of another angle of the cleaning mechanism in the polyurethane waterproof coating fluidity detection device provided by the present invention;

[0031] Figure 8 yes Figure 7 Enlarged view of point D in the middle.

[0032] In the figure, 1, a carrying box; 11, a flow channel; 12, an axial flow fan blade; 13, a funnel; 2, an automatic detection mechanism; 21, a liquid storage chamber; 22, a centrifugal sleeve; 23, a piston block; 24, a first spring; 25, a push rod; 26, a counterweight; 27, a first conductive sheet; 28, a second conductive sheet; 29, a timer; 3, a cleaning mechanism; 31, a fixed plate; 32, a telescopic rod; 33, a gear ring; 34, a transmission rod; 35, a first gear; 36, a limit plate; 3 7. Articulated seat; 38. Scraping rod; 4. Centrifugal metering mechanism; 41. Measuring cylinder; 42. Infusion tube; 5. Swinging mechanism; 51. L-shaped plate; 52. Guide wheel; 53. Guide ring plate; 54. Trapezoidal protrusion; 55. Second gear; 56. Second spring; 57. Lifting block; 58. Rack; 59. Ratchet block; 510. Stop block; 511. Third spring; 512. Ratchet plate; 513. Protruding plate; 514. Annular stop block; 6. Worm wheel; 7. Worm. DETAILED DESCRIPTION

[0033] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0034] like Figure 1 - Figure 8 As shown, a polyurethane waterproof coating fluidity detection device comprises:

[0035] A carrying box 1, a flow channel 11 is fixedly installed on the top of the carrying box 1, an axial flow fan blade 12 is rotatably installed inside the flow channel 11, and a funnel 13 is fixedly installed on the top of the flow channel 11;

[0036] An automatic detection mechanism 2, which is fixedly mounted on the bearing of the axial flow fan blade 12 and is used to automatically measure the time required for the waterproof coating to completely flow out;

[0037] The cleaning mechanism 3 is arranged above the funnel 13 and is used for cleaning the waterproof coating in the funnel 13 .

[0038] The automatic detection mechanism 2 includes a liquid storage chamber 21 fixedly mounted on the bearing of the axial flow fan blade 12, and a plurality of centrifugal sleeves 22 are fixedly mounted on the peripheral side walls of the liquid storage chamber 21. A piston block 23 is sealed and slidably mounted in each centrifugal sleeve 22, and each piston block 23 is elastically connected to the inner wall of the centrifugal sleeve 22 through a first spring 24. A counterweight block 26 is fixedly mounted on each piston block 23 through a push rod 25. A first conductive sheet 27 is embedded on the side wall of the piston block 23, and a second conductive sheet 28 is embedded on the inner wall of the centrifugal sleeve 22. A timer 29 is provided above the carrying box 1, and the first conductive sheet 27 and the second conductive sheet 28 are electrically connected to the timer 29. A centrifugal metering mechanism 4 is provided above the carrying box 1, and the centrifugal metering mechanism 4 cooperates with the automatic detection mechanism 2 to perform double detection on the waterproof coating.

[0039] In view of the problem that the staff is required to manually time the time required for the waterproof coating to flow out in the prior art, and the detection of the fluidity of the waterproof coating is prone to large errors due to the reaction problems of the staff, the present invention sets an automatic detection mechanism 2. During the detection, the polyurethane waterproof coating is transported to the funnel 13 and flows to the inside of the carrying box 1 through the flow channel 11. In this process, the impact force generated when the waterproof coating flows will drive the axial flow blades 12 to rotate, and then the liquid storage chamber 21 and the centrifugal sleeve 22 to rotate. Under the action of centrifugal force, the piston block 23 slides in the centrifugal sleeve 22, and further makes the first conductive sheet 27 contact with the second conductive sheet 28, so that the timer 29 starts timing. After the waterproof coating completely flows out, the axial flow blades 12 no longer rotate, and the piston block 23 returns to the initial position under the elastic force of the first spring 24. The timer 29 stops working, and the time required for the waterproof coating to completely flow out is automatically measured. The fluidity of the waterproof coating is detected according to the time when it flows out, so as to avoid large errors caused by reaction problems during manual operation by the staff.

[0040] The centrifugal metering mechanism 4 includes a metering cylinder 41 fixedly mounted above the carrying box 1, and a liquid infusion tube 42 is fixedly mounted on the side wall of the metering cylinder 41. The liquid infusion tube 42 is sealed and rotatably mounted on the liquid storage chamber 21, and the metering cylinder 41 is connected to the interior of the liquid storage chamber 21 through the liquid infusion tube 42.

[0041] The function of the counterweight block 26 is to increase the inertia of the piston block 23, so that the piston block 23 can move a sufficient distance under the action of centrifugal force, so that the liquid level in the metering cylinder 41 changes more obviously, thereby improving the detection accuracy.

[0042] The infusion tube 42 is transparent, and scale lines are provided on the outer wall of the infusion tube 42 to facilitate the staff to observe the changes in the liquid level.

[0043] The metering cylinder 41 , the infusion tube 42 , the liquid storage chamber 21 and the centrifugal sleeve 22 are all filled with metering liquid.

[0044] In view of the problem that the detection method for the fluidity of waterproof coating in the prior art is relatively single, resulting in low detection accuracy, the present invention sets a centrifugal metering mechanism 4. When the fluidity of the coating is good, it can drive the rotation speed of the axial flow fan blade 12 to increase, so that the centrifugal force is greater, and further move the piston block 23 in the centrifugal sleeve 22 A greater distance, more metering liquid in the metering cylinder 41 is pumped into the liquid storage chamber 21 through the infusion tube 42, so that the fluidity of the coating is calculated by the change in the liquid level height in the metering cylinder 41. By mutual confirmation of the liquid level change and the timer reading, a double detection of the fluidity of the polyurethane waterproof coating is achieved, thereby improving the accuracy of the fluidity detection.

[0045] The cleaning mechanism 3 includes a fixed plate 31 fixedly mounted above the carrying box 1, and an annular groove is opened on the lower wall of the fixed plate 31, in which two telescopic rods 32 are rotatably mounted, and a gear ring 33 is fixedly mounted at the bottom of the two telescopic rods 32, and a transmission rod 34 is rotatably mounted on the outer wall of the flow channel 11 through a mounting plate, and a first gear 35 is mounted on the top of the transmission rod 34 through a spline, and two limit plates 36 are fixed on the upper and lower outer peripheral surface of the gear ring 33, and the first gear 35 is located between the two limit plates 36 and meshes with the gear ring 33, and a scraping rod 38 is hinged on the lower wall of the gear ring 33 through a hinge seat 37, and a swinging mechanism 5 is provided on the gear ring 33, and the swinging mechanism 5 is used to ensure the cleanliness of the surface of the scraping rod 38 to improve the cleaning effect of the inner wall of the funnel 13.

[0046] Among them, the limit plate 36 can synchronously drive the first gear 35 to move up and down when the gear ring 33 moves up and down, so that the gear ring 33 is always driven by the first gear 35, and due to the setting of the spline, the first gear 35 is always driven by the transmission rod 34 when moving up and down, ensuring the operation of the cleaning mechanism 3.

[0047] A worm wheel 6 is fixedly mounted on the transmission rod 34 , and a worm 7 is fixedly mounted on one end of the bearing of the axial flow blade 12 close to the worm wheel 6 , and the worm wheel 6 and the worm 7 are meshed with each other.

[0048] In view of the problem that the funnel 13 cannot be cleaned in real time in the prior art, which causes the paint to easily adhere to the inner wall of the funnel 13, not only reducing the amount of paint detected and lowering the detection results, but also causing great inconvenience to the subsequent cleaning work, the present invention sets a cleaning mechanism 3. During the process of fluidity detection of the paint, the first gear 35 can be driven to rotate by the rotation of the transmission rod 34, so that the gear ring 33 can drive the scraping rod 38 below it to perform a circular motion along the inner wall of the funnel 13, which has a cleaning effect on the inner wall of the funnel 13 and avoids the paint from adhering to the inner wall of the funnel 13, resulting in a reduction in the amount of waterproof paint detected, affecting the detection results of the paint fluidity and avoiding the inconvenience of subsequent cleaning work. At the same time, since the axial flow fan blades 12 can drive the transmission rod 34 to rotate synchronously through the worm 7 and the worm wheel 6 when rotating, there is no need to set an additional driving source, which saves costs and improves work efficiency.

[0049] The swing mechanism 5 includes an L-shaped plate 51 fixedly mounted on the gear ring 33, a guide wheel 52 is rotatably mounted on the L-shaped plate 51, a guide ring plate 53 is fixedly mounted below the fixed plate 31, a plurality of trapezoidal protrusions 54 are provided on the guide ring plate 53, the guide wheel 52 rolls in contact with the guide ring plate 53 and the trapezoidal protrusions 54, a second gear 55 is fixedly mounted on the bearing of the scraping rod 38, a lifting block 57 is elastically connected to the lower side of the gear ring 33 through a second spring 56, and a lifting block 57 is fixedly mounted on the lifting block 57 The rack 58 is meshed with the second gear 55, and a ratchet block 59 is fixedly installed above the rack 58 through a connecting rod. Two blocks 510 are fixedly installed above the gear ring 33, and each block 510 is elastically connected to a ratchet plate 512 through a third spring 511. The two ratchet plates 512 cooperate with the two sides of the ratchet block 59 respectively, and a convex plate 513 is fixedly installed on the top of each ratchet plate 512. An annular stop block 514 is fixedly installed below the fixed disk 31.

[0050] In order to ensure the cleanliness of the surface of the scraping rod 38 and improve the cleaning effect of the inner wall of the funnel 13, the present invention is provided with a swinging mechanism 5. When the scraping rod 38 performs a circular motion, the rotation of the gear ring 33 will also drive the guide wheel 52 to move along the guide ring plate 53, so that the trapezoidal protrusion 54 intermittently pushes the gear ring 33 to move upward, and the scraping rod 38 is intermittently moved above the funnel 13. When the gear ring 33 moves to the top, the two protrusions 513 are squeezed and pushed away from each other by the annular stop block 514, so that the two ratchet plates 512 no longer clamp the ratchet blocks 59, so that the lifting block 57 below the ratchet block 59 can quickly rise under the elastic force of the second spring 56, and the second gear 55 can be driven to rotate quickly through the rack 58, so that the scraping rod 38 can be quickly swung to throw the paint on it into the funnel 13. When the toothed ring 33 is no longer pushed by the trapezoidal protrusion 54, the toothed ring 33 will fall back to the initial position under the action of gravity. At this time, the movement of the ratchet block 59 is not hindered by the ratchet plate 512. Therefore, the scraping rod 38 can be restored to a state of fitting the funnel 13 under the contact of the funnel 13 when falling.

[0051] The present invention can be explained by the following operation mode:

[0052] During the detection, the polyurethane waterproof coating is transported into the funnel 13 and flows into the inside of the carrying box 1 through the flow channel 11. During this process, the impact force generated by the flow of the waterproof coating will drive the axial flow blades 12 to rotate, and then the liquid storage chamber 21 and the centrifugal sleeve 22 to rotate. Under the action of centrifugal force, the piston block 23 slides in the centrifugal sleeve 22, and further makes the first conductive sheet 27 contact with the second conductive sheet 28, so that the timer 29 starts timing, automatically measuring the time required for the waterproof coating to completely flow out, and detecting its fluidity according to the time when the waterproof coating flows out;

[0053] When the fluidity of the coating is good, the rotation speed of the axial flow blade 12 can be increased, so that the centrifugal force is greater, and the piston block 23 is further moved a greater distance in the centrifugal sleeve 22, and more metering liquid in the metering cylinder 41 is pumped into the liquid storage chamber 21 through the infusion tube 42, so that the fluidity of the coating is calculated by the change of the liquid level in the metering cylinder 41. Through the mutual confirmation of the change of the liquid level and the reading of the timer 29, the dual detection of the fluidity of the polyurethane waterproof coating is achieved;

[0054] When the axial flow impeller 12 rotates, the transmission rod 34 can be driven to rotate synchronously through the worm 7 and the worm wheel 6, and the first gear 35 can be driven to rotate, so that the gear ring 33 can drive the scraping rod 38 below it to perform a circular motion along the inner wall of the funnel 13, thereby cleaning the inner wall of the funnel 13 and preventing the paint from adhering to the inner wall of the funnel 13;

[0055] The rotation of the gear ring 33 will also drive the guide wheel 52 to move along the guide ring plate 53, so that the trapezoidal protrusion 54 intermittently pushes the gear ring 33 upward, and the scraper rod 38 intermittently moves to the top of the funnel 13. When the gear ring 33 moves to the top, the two protrusions 513 are squeezed and pushed away from each other by the annular stop block 514, so that the two ratchet plates 512 no longer clamp the ratchet block 59, so that the lifting block 57 under the ratchet block 59 can rise rapidly under the elastic force of the second spring 56, and the second gear 55 is driven to rotate rapidly through the rack 58, so that the scraper rod 38 can swing rapidly, and the paint on it is thrown into the funnel 13, so as to ensure the cleanliness of the surface of the scraper rod 38.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyurethane waterproof coating fluidity detection device, characterized in that: include: A carrying box (1), a flow channel (11) being fixedly mounted above the carrying box (1), an axial flow fan blade (12) being rotatably mounted inside the flow channel (11), and a funnel (13) being fixedly mounted above the flow channel (11); An automatic detection mechanism (2), the automatic detection mechanism (2) being fixedly mounted on a bearing of the axial flow fan blade (12) and being used to automatically measure the time required for the waterproof coating to completely flow out, the automatic detection mechanism (2) comprising a liquid storage chamber (21) fixedly mounted on the bearing of the axial flow fan blade (12); A centrifugal metering mechanism (4) is provided above the carrying box (1), and the centrifugal metering mechanism (4) cooperates with the automatic detection mechanism (2) to perform a double detection on the waterproof coating, and the centrifugal metering mechanism (4) comprises a metering cylinder (41) fixedly mounted above the carrying box (1), a liquid infusion tube (42) fixedly mounted on the side wall of the metering cylinder (41), the liquid infusion tube (42) being sealed and rotatably mounted on the liquid storage chamber (21), and the metering cylinder (41) is connected to the interior of the liquid storage chamber (21) through the liquid infusion tube (42); A cleaning mechanism (3) is provided above the funnel (13) and is used to clean the waterproof coating in the funnel (13). The cleaning mechanism (3) comprises a fixed plate (31) fixedly mounted above the carrying box (1). The lower wall of the fixed plate (31) is provided with an annular groove. Two telescopic rods (32) are rotatably mounted in the annular groove. A gear ring (33) is fixedly mounted at the bottom of the two telescopic rods (32). A transmission rod (34) is rotatably mounted on the outer wall of the flow channel (11) via a mounting plate. The transmission rod (34) is rotatably mounted on the outer wall of the flow channel (11). A first gear (35) is installed on the top of the movable rod (34) via a spline. Two limit plates (36) are fixed on the upper and lower outer circumference of the gear ring (33). The first gear (35) is located between the two limit plates (36) and meshes with the gear ring (33). A scraping rod (38) is hingedly connected to the lower wall of the gear ring (33) via a hinge seat (37). A swing mechanism (5) is provided on the gear ring (33). The swing mechanism (5) is used to ensure the cleanliness of the surface of the scraping rod (38) to improve the cleaning effect of the inner wall of the funnel (13). The swing mechanism (5) comprises an L-shaped plate (51) fixedly mounted on the gear ring (33), a guide wheel (52) being rotatably mounted on the L-shaped plate (51), a guide ring plate (53) being fixedly mounted below the fixed plate (31), a plurality of trapezoidal protrusions (54) being provided on the guide ring plate (53), the guide wheel (52) rolling in contact with the guide ring plate (53) and the trapezoidal protrusions (54), a second gear (55) being fixedly mounted on the bearing of the scraping rod (38), a lifting block (57) being elastically connected to the lower side of the gear ring (33) via a second spring (56), the lifting block (57) being fixedly mounted on the lifting block (57) A rack (58) is installed, and the rack (58) and the second gear (55) are meshed with each other. A ratchet block (59) is fixedly installed above the rack (58) via a connecting rod. Two stoppers (510) are fixedly installed above the gear ring (33). Each of the stoppers (510) is elastically connected to a ratchet plate (512) via a third spring (511). The two ratchet plates (512) respectively cooperate with two sides of the ratchet block (59). A convex plate (513) is fixedly installed on the top of each ratchet plate (512). An annular stopper (514) is fixedly installed below the fixed disk (31).

2. The polyurethane waterproof coating fluidity detection device according to claim 1, characterized in that: A plurality of centrifugal sleeves (22) are fixedly mounted on the peripheral side wall of the liquid storage chamber (21); a piston block (23) is sealed and slidably mounted in each of the centrifugal sleeves (22); each of the piston blocks (23) is elastically connected to the inner wall of the centrifugal sleeve (22) via a first spring (24); a counterweight block (26) is fixedly mounted on each of the piston blocks (23) via a push rod (25); a first conductive sheet (27) is embedded on the side wall of the piston block (23); a second conductive sheet (28) is embedded on the inner wall of the centrifugal sleeve (22); a timer (29) is provided above the carrying box (1); and the first conductive sheet (27), the second conductive sheet (28) and the timer (29) are electrically connected.

3. The polyurethane waterproof coating fluidity detection device according to claim 1, characterized in that: The infusion tube (42) is transparent, and scale lines are provided on the outer wall of the infusion tube (42).

4. The polyurethane waterproof coating fluidity detection device according to claim 2, characterized in that: The metering cylinder (41), the infusion tube (42), the liquid storage chamber (21) and the centrifugal sleeve (22) are all filled with metering liquid.

5. The polyurethane waterproof coating fluidity detection device according to claim 1, characterized in that: A worm wheel (6) is fixedly mounted on the transmission rod (34), and a worm (7) is fixedly mounted on one end of the axial flow blade (12) bearing close to the worm wheel (6), and the worm wheel (6) and the worm (7) are meshed with each other.

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