A polyurethane waterproof coating preparation device

Abstract

The utility model relates to polyurethane waterproof paint preparation technical field, concretely is a kind of polyurethane waterproof paint preparation device, including preparation tank and installation cover, the installation cover is connected with preparation tank by bolt fixedly, installation seat is rotatably installed on the installation cover, stirring paddle is equipped in the preparation tank, quick coupling mechanism for installing stirring paddle is equipped in the installation seat, installation shaft is rotatably installed in the installation seat, four groups of symmetrical distribution's clamping groove are set up on the stirring paddle, the locking mechanism includes two groups of first clamping frame and two groups of second clamping frame slidingly installed in the installation seat, by setting installation seat and quick coupling mechanism, the quick installation and disassembly of stirring paddle are realized;When needing to replace stirring paddle, operator only needs to drive installation shaft to rotate by handle, can drive four groups of clamping block synchronous radial motion by gear and rack linkage, so that it rapidly separates or clamps into corresponding clamping groove on stirring paddle.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane waterproof coating preparation technology, specifically a polyurethane waterproof coating preparation device. Background Technology

[0002] Polyurethane waterproof coatings are single-component polyurethane waterproof coatings made from isocyanate-containing prepolymers formed by the addition polymerization reaction of isocyanates, polyethers, etc., combined with catalysts, anhydrous additives, anhydrous fillers, solvents, etc., and processed through mixing and other processes. In the production and preparation of polyurethane waterproof coatings, mechanical stirring and dispersion are crucial steps to ensure uniform mixing of all components and achieve the desired final product performance. Different production stages, such as powder wetting, high-speed dispersion, paint mixing, or different product formulations, often require matching different types and structures of stirring blades to achieve optimal mixing efficiency and dispersion effects.

[0003] In existing technologies, most mixing equipment used in the preparation of polyurethane waterproof coatings adopts a fixed connection structure. For example, the utility model patent with authorization announcement number CN218688435U discloses a waterproof coating mixer, which improves mixing efficiency and effect by setting multiple first and second mixing blades. However, such equipment usually fixes the mixing blades directly to the mixing shaft by bolts or key connections. Although this traditional connection method is simple in structure and reliable in torque transmission, changing the mixing blades when switching products or processes in actual production is cumbersome. Operators need to use special tools and spend a long time disassembling and reinstalling, and even need to adjust the dynamic balance. This not only leads to excessive downtime and low production efficiency, but also causes manufacturers to equip only one type of mixing blade per machine to avoid the trouble of frequent replacements, which greatly limits the process adaptability of a single machine. The inability to flexibly select the most suitable mixing blade according to the characteristics of the material leads to problems such as mixing and dispersion dead zones, low efficiency, and increased energy consumption in some production stages, ultimately affecting the stability and consistency of product quality. Therefore, we propose a polyurethane waterproof coating preparation device. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a polyurethane waterproof coating preparation device, comprising a preparation tank and a mounting cover. The mounting cover is fixedly connected to the preparation tank by bolts. A mounting base is rotatably mounted on the mounting cover. A stirring paddle is provided inside the preparation tank, and the stirring paddle is movably engaged with the mounting base. A quick-connect mechanism for installing the stirring paddle is provided inside the mounting base. An installation shaft is rotatably mounted inside the mounting base, and handles corresponding to the installation shaft are rotatably mounted inside the mounting base. A locking mechanism for positioning the handles is provided inside the mounting base. Four sets of symmetrically distributed slots are provided on the stirring paddle. The locking mechanism includes two sets of first brackets and two sets of second brackets slidably mounted inside the mounting base. Each of the two sets of first brackets and second brackets has a locking block fixedly mounted on it. The four sets of locking blocks are respectively distributed corresponding to the four sets of slots, and the four sets of locking blocks are movably engaged with the stirring paddle through their respective slots.

[0005] In some embodiments, the two sets of first card holders and second card holders are vertically distributed, and the two sets of first card holders and the two sets of second card holders are centrally symmetrical about the mounting axis. The mounting base is fixedly installed with a first slide rod corresponding to the first card holder and the second card holder. The first card holder and the second card holder are slidably sleeved with the corresponding first slide rod. Two sets of symmetrically distributed first springs are sleeved on the first slide rod. The two ends of the two sets of first springs are fixedly connected to the corresponding first card holder or second card holder and the mounting base, respectively. A first rack is fixedly installed on each of the two sets of first card holders, and a second rack is fixedly installed on each of the two sets of second card holders.

[0006] In some embodiments, a first gear and a second gear are sleeved on the mounting shaft. The first gear is located between two sets of first racks and meshes with both sets of first racks respectively. The second gear is located between two sets of second racks and meshes with both sets of second racks respectively. A first torsion spring is sleeved on the mounting shaft. The two ends of the first torsion spring are rotatably connected to the mounting shaft and the mounting base respectively. A first bevel gear is sleeved on the mounting shaft. A second bevel gear is sleeved on the handle. The first bevel gear and the second bevel gear mesh with each other.

[0007] In some embodiments, the locking mechanism includes two sets of ratchet wheels symmetrically sleeved on the handle, and two sets of pawls corresponding to the ratchet wheels are provided in the mounting base. The two sets of pawls are respectively engaged with the corresponding ratchet wheels. The two sets of pawls are rotatably connected to the mounting base through rotating rods. A second torsion spring is sleeved on each of the two sets of rotating rods. The two ends of the two sets of second torsion springs are respectively fixedly connected to the corresponding pawls and the mounting base. A third gear is sleeved on each of the two sets of rotating rods.

[0008] In some embodiments, two sets of third racks corresponding to the third gear are slidably installed in the mounting base, and the two sets of third racks are respectively meshed with the corresponding third gear. A slide is slidably installed in the mounting base, and the slide is fixedly connected to the two sets of third racks. A second slide rod is fixedly installed in the mounting base, and a positioning block is fixedly installed on the slide.

[0009] In some embodiments, the slide is slidably sleeved with the second slide rod, and two sets of symmetrically distributed second springs are sleeved on the second slide rod, with the two ends of the second springs being fixedly connected to the slide and the mounting base, respectively.

[0010] In some embodiments, a positioning rod corresponding to the positioning block is fixedly installed inside the mounting base. Two sets of symmetrically distributed positioning clamps are sleeved on the positioning rod, and the two sets of positioning clamps are movably engaged with the positioning block. Two sets of symmetrically distributed third torsion springs are sleeved on the positioning rod, and the two ends of the third torsion springs are fixedly connected to the positioning clamps and the positioning rod, respectively.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. By incorporating a mounting base and quick-connect mechanism, the agitator paddle can be rapidly installed and disassembled. When replacing the paddle, the operator simply drives the mounting shaft by rotating the handle, which, through gear and rack linkage, drives four sets of locking blocks to move radially in sync, quickly disengaging from or engaging with the corresponding slots on the paddle. This eliminates the need for any special tools, allowing for the complete installation and removal of the paddle. This not only significantly reduces downtime for replacements, improving equipment utilization and production flexibility, but also enables a single unit to accommodate various types of agitators, meeting the specific requirements of different process stages or material properties for the agitation structure, effectively expanding the equipment's application range.

[0013] 2. By setting a locking mechanism, the handle and mounting shaft can be reliably locked in both directions automatically after the agitator is installed. When the positioning clamp is released from the positioning block, the pawl quickly re-engages with the ratchet under the reset action of the second spring and the second torsion spring, thus firmly restricting the rotation of the handle and preventing it from accidentally loosening or rotating due to vibration or torque impact during the mixing operation. This self-locking mechanism ensures the stability and continuity of power transmission, further enhances the structural rigidity and operational safety of the agitator connection, avoids mixing failure or equipment damage caused by loose connection, and helps maintain stable mixing process conditions and product mixing quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2This is a schematic diagram showing the separation of the preparation tank and the mounting cover of this utility model;

[0016] Figure 3 This is a schematic diagram showing the structural separation of the mounting base and the stirring paddle of this utility model;

[0017] Figure 4 This is a structural schematic diagram of the quick-connect mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the mounting shaft and handle of this utility model;

[0019] Figure 6 This is a schematic diagram of the locking mechanism of this utility model.

[0020] In the diagram: 1-Preparation tank; 2-Mounting cover; 3-Agitator; 4-Mounting base; 5-Quick-connect mechanism; 501-First bracket; 502-Second bracket; 503-First rack; 504-First gear; 505-Second rack; 506-Second gear; 507-First torsion spring; 508-Clamping block; 509-First slide bar; 510-First spring; 6-Mounting shaft; 7-First bevel gear; 8-Second bevel gear; 9-Locking mechanism; 901-Ratchet; 902-Pawl; 903-Rotating rod; 904-Second torsion spring; 905-Third gear; 906-Third rack; 907-Slide; 908-Second slide bar; 909-Second spring; 910-Positioning rod; 911-Positioning clamp; 912-Third torsion spring; 913-Positioning block; 10-Handle; 11-Clamping slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] Please see Figure 1-4This utility model provides a technical solution: a polyurethane waterproof coating preparation device, including a preparation tank 1 and a mounting cover 2. The mounting cover 2 is fixedly connected to the preparation tank 1 by bolts. A mounting base 4 is rotatably mounted on the mounting cover 2. A stirring paddle 3 is provided inside the preparation tank 1. The stirring paddle 3 is movably engaged with the mounting base 4. A quick-connect mechanism 5 for installing the stirring paddle 3 is provided inside the mounting base 4. A mounting shaft 6 is rotatably mounted inside the mounting base 4. Handles 10 corresponding to the mounting shaft 6 are rotatably mounted inside the mounting base 4. A locking mechanism 9 for positioning the handles 10 is provided inside the mounting base 4. The mounting base 4 has four symmetrically distributed slots 11. The locking mechanism 9 includes two sets of first card holders 501 and two sets of second card holders 502 that are slidably installed in the mounting base 4. Each of the two sets of first card holders 501 and second card holders has a fixed card block 508. The four sets of card blocks 508 are distributed corresponding to the four sets of slots 11 and are movably engaged with the stirring paddle 3 through their respective slots 11. The two sets of first card holders 501 and second card holders 502 are perpendicularly distributed and are centrally symmetrical about the mounting axis 6. 4. A first slide rod 509, corresponding to the first card holder 501 and the second card holder 502, is fixedly installed inside. The first card holder 501 and the second card holder 502 are slidably sleeved with the corresponding first slide rod 509. Two sets of symmetrically distributed first springs 510 are sleeved on the first slide rod 509. The two ends of the two sets of first springs 510 are fixedly connected to the corresponding first card holder 501 or second card holder 502 and the mounting base 4, respectively. A first rack 503 is fixedly installed on each of the two sets of first card holders 501, and a second rack 505 is fixedly installed on each of the two sets of second card holders 502. A first gear 504 and a second gear 506 are sleeved on the shaft 6. The first gear 504 is located between two sets of first racks 503 and meshes with the two sets of first racks 503 respectively. The second gear 506 is located between two sets of second racks 505 and meshes with the two sets of second racks 505 respectively. A first torsion spring 507 is sleeved on the mounting shaft 6. The two ends of the first torsion spring 507 are rotatably connected to the mounting shaft 6 and the mounting base 4 respectively. A first bevel gear 7 is sleeved on the mounting shaft 6. A second bevel gear 8 is sleeved on the handle 10. The first bevel gear 7 and the second bevel gear 8 mesh with each other.When it is necessary to install or replace the agitator 3, the operator holds the handle 10 and can rotate it freely. The rotation of the handle 10 transmits power to the mounting shaft 6 through the meshing second bevel gear 8 and the first bevel gear 7, causing them to rotate synchronously. The rotation of the mounting shaft 6 drives the first gear 504 and the second gear 506 on it to rotate together. The first gear 504 meshes with two sets of first racks 503, driving the two sets of first brackets 501 to move synchronously towards or away from each other along the first slide bar 509. Similarly, the second gear 506 drives the two sets of second brackets 502 to move synchronously. When the handle 10 is turned, the four sets of locking blocks 508 at the ends of the four sets of brackets extend or retract synchronously. During installation, turning the handle 10 causes the four sets of locking blocks 508 to move outward synchronously under the precise transmission of the gear rack, inserting the connecting rod at the top of the stirring paddle 3 into the center hole of the mounting base 4. After releasing the handle 10, under the action of the first torsion spring 507 and the first spring 510, the four sets of locking blocks 508 slide inward synchronously under the action of the corresponding first bracket 501 and second bracket 502, returning to their original positions and firmly locking into the corresponding four sets of slots 11 on the stirring paddle 3, instantly completing a secure connection without any tools. When disassembling, simply turn the handle 10 again, and the locking blocks 508 will retract synchronously, releasing the lock, allowing the stirring paddle 3 to be removed. The entire process is quick and effortless.

[0024] Example 2:

[0025] Please see Figure 5-6The locking mechanism 9 includes two sets of ratchet wheels 901 symmetrically sleeved on the handle 10. The mounting base 4 has two sets of pawls 902 corresponding to the ratchet wheels 901. The two sets of pawls 902 are respectively engaged with the corresponding ratchet wheels 901. Both sets of pawls 902 are rotatably connected to the mounting base 4 via rotating rods 903. Each set of rotating rods 903 is sleeved with a second torsion spring 904. The two ends of each second torsion spring 904 are fixedly connected to the corresponding pawl 902 and the mounting base 4, respectively. Each set of rotating rods 903 is sleeved with a third gear 905. The mounting base 4 has two sets of third racks 906 slidably installed, corresponding to the third gears 905. The two sets of third racks 906 are respectively engaged with the corresponding third gears 901. Three gears 905 mesh with each other. A slide 907 is slidably installed in the mounting base 4. The slide 907 is fixedly connected to two sets of third racks 906. A second slide rod 908 is fixedly installed in the mounting base 4. A positioning block 913 is fixedly installed on the slide 907. The slide 907 and the second slide rod 908 are slidably sleeved. Two sets of symmetrically distributed second springs 909 are sleeved on the second slide rod 908. The two ends of the second springs 909 are fixedly connected to the slide 907 and the mounting base 4, respectively. A positioning rod 910 corresponding to the positioning block 913 is fixedly installed in the mounting base 4. Two sets of symmetrically distributed positioning clips 911 are sleeved on the positioning rod 910. The two sets of positioning clips 911 and the positioning block 906 are connected to each other. 13. The positioning rod 910 is fitted with two sets of symmetrically distributed third torsion springs 912. The two ends of the third torsion springs 912 are fixedly connected to the positioning clamp 911 and the positioning rod 910, respectively. After the agitator 3 is installed and the handle 10 is released, the locking mechanism 9 automatically takes effect. Specifically, the two sets of ratchet wheels 901 fitted on the handle 10 are tightly locked by the corresponding pawls 902 under the continuous action of the second torsion spring 904, realizing bidirectional locking of the handle 10, thereby also locking the mounting shaft 6 to prevent it from reversing due to vibration. This locking state is extremely reliable. If readjustment is required, the operator can pull the slide 907 upwards, and the slide 907 drives the two third racks 911. 06 moves upward, driving the third gear 905 to rotate, thereby forcing the pawl 902 to overcome the force of the second torsion spring 904 and disengage from the ratchet 901. The slide 907 continues to be pushed upward, causing the positioning block 913 on it to engage between the two sets of positioning clips 911 pressed by the third torsion spring 912, thus maintaining this unlocked state. Only then can the handle 10 be turned. After adjustment, simply pull the slide 907 in the opposite direction. Under the push of the second spring 909, the slide 907 quickly returns to its original position, the third rack 906 moves downward, and the pawl 902 immediately re-engages with the ratchet 901 under the action of the second torsion spring 904, restoring the firm lock on the handle 10 and ensuring the continuity and safety of the mixing operation.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polyurethane waterproof coating preparation apparatus, comprising a preparation tank (1) and a mounting cover (2), characterized in that: The mounting cover (2) is fixedly connected to the preparation tank (1) by bolts. A mounting base (4) is rotatably mounted on the mounting cover (2). A stirring paddle (3) is provided inside the preparation tank (1). The stirring paddle (3) is movably engaged with the mounting base (4). A quick-connect mechanism (5) for mounting the stirring paddle (3) is provided inside the mounting base (4). A mounting shaft (6) is rotatably mounted inside the mounting base (4). Handles (10) corresponding to the mounting shaft (6) are rotatably mounted inside the mounting base (4). A handle (10) for the handle (10) is provided inside the mounting base (4). 0) Positioning locking mechanism (9), the stirring paddle (3) is provided with four sets of symmetrically distributed slots (11), the locking mechanism (9) includes two sets of first card holders (501) and two sets of second card holders (502) slidably installed in the mounting base (4), and card blocks (508) are fixedly installed on the two sets of first card holders (501) and second card holders. The four sets of card blocks (508) are respectively distributed corresponding to the four sets of slots (11), and the four sets of card blocks (508) are respectively movably engaged with the stirring paddle (3) through the corresponding slots (11).

2. The polyurethane waterproof coating preparation apparatus according to claim 1, characterized in that: Two sets of first card holders (501) and second card holders (502) are vertically distributed. Both sets of first card holders (501) and two sets of second card holders (502) are centrally symmetrical about the mounting axis (6). The mounting base (4) is fixedly installed with a first slide rod (509) corresponding to the first card holder (501) and the second card holder (502). The first card holder (501) and the second card holder (502) are slidably sleeved with the corresponding first slide rod (509). Two sets of symmetrically distributed first springs (510) are sleeved on the first slide rod (509). The two ends of the two sets of first springs (510) are fixedly connected to the corresponding first card holder (501) or second card holder (502) and the mounting base (4). Both sets of first card holders (501) are fixedly installed with a first rack (503), and both sets of second card holders (502) are fixedly installed with a second rack (505).

3. The polyurethane waterproof coating preparation apparatus according to claim 1, characterized in that: A first gear (504) and a second gear (506) are sleeved on the mounting shaft (6). The first gear (504) is located between two sets of first racks (503) and meshes with the two sets of first racks (503) respectively. The second gear (506) is located between two sets of second racks (505) and meshes with the two sets of second racks (505) respectively. A first torsion spring (507) is sleeved on the mounting shaft (6). The two ends of the first torsion spring (507) are rotatably connected to the mounting shaft (6) and the mounting seat (4) respectively. A first bevel gear (7) is sleeved on the mounting shaft (6). A second bevel gear (8) is sleeved on the handle (10). The first bevel gear (7) and the second bevel gear (8) mesh with each other.

4. The polyurethane waterproof coating preparation apparatus according to claim 1, characterized in that: The locking mechanism (9) includes two sets of ratchet wheels (901) symmetrically sleeved on the handle (10). The mounting base (4) is provided with two sets of pawls (902) corresponding to the ratchet wheels (901). The two sets of pawls (902) are respectively engaged with the corresponding ratchet wheels (901). The two sets of pawls (902) are rotatably connected to the mounting base (4) through rotating rods (903). The two sets of rotating rods (903) are each sleeved with a second torsion spring (904). The two ends of the two sets of second torsion springs (904) are respectively fixedly connected to the corresponding pawls (902) and the mounting base (4). The two sets of rotating rods (903) are each sleeved with a third gear (905).

5. The polyurethane waterproof coating preparation apparatus according to claim 1, characterized in that: Two sets of third racks (906) corresponding to the third gear (905) are slidably installed in the mounting base (4). The two sets of third racks (906) are respectively meshed with the corresponding third gears (905). A slide (907) is slidably installed in the mounting base (4). The slide (907) is respectively fixedly connected to the two sets of third racks (906). A second slide rod (908) is fixedly installed in the mounting base (4). A positioning block (913) is fixedly installed on the slide (907).

6. The polyurethane waterproof coating preparation apparatus according to claim 5, characterized in that: The slide (907) is slidably sleeved with the second slide rod (908). Two sets of symmetrically distributed second springs (909) are sleeved on the second slide rod (908). The two ends of the second springs (909) are fixedly connected to the slide (907) and the mounting base (4) respectively.

7. The polyurethane waterproof coating preparation apparatus according to claim 1, characterized in that: The mounting base (4) is fixedly installed with a positioning rod (910) corresponding to the positioning block (913). Two sets of symmetrically distributed positioning clips (911) are sleeved on the positioning rod (910). The two sets of positioning clips (911) are movably engaged with the positioning block (913). Two sets of symmetrically distributed third torsion springs (912) are sleeved on the positioning rod (910). The two ends of the third torsion springs (912) are fixedly connected to the positioning clips (911) and the positioning rod (910) respectively.

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