Catalytic electrode coating brush

Abstract

The utility model discloses a catalytic electrode coating brush, which relates to the technical field of electro-catalysis and comprises a brush fixing frame, sliding strips are fixedly mounted on two sides of a connecting end of the brush fixing frame, and a brush head fixing sleeve is provided with guide grooves matched with the sliding strips in a sliding manner; the bristle brushes are divided into a sparse brush group and a dense brush group which are fixedly mounted on the brush fixing frame, and the dense brush group is located in front of the sparse brush group; the sliding groove is formed in the outer wall face of the brush rod in the axial direction of the brush rod, and a plurality of limiting ring grooves are formed in the sliding groove; the adjusting limiting sleeve is slidably connected to the outer wall of the brush rod, and a clamping block is fixedly mounted on the inner wall of the adjusting limiting sleeve; the hair brush fixing frame is provided with a sparse hair brush set and a dense hair brush set, the inner wall of the hair brush fixing frame is detachably provided with a U-shaped limiting frame, and the U-shaped limiting frame is used for adjusting the length of the bristle hair brushes. The sparse hair brush set and the dense hair brush set on the hair brush fixing frame are arranged front and back, preliminary coating is conducted through the sparse hair brush set, and fine modification is conducted through the dense hair brush set; the problems that a single brush is poor in coating uniformity and insufficient in flatness are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrocatalysis technology, specifically to a catalytic electrode coating brush. Background Technology

[0002] Coating is a primary production method for preparing catalytic electrodes. It is simple and easy to operate, and is particularly suitable for the preparation of large-area catalytic electrodes. However, during operation, due to the rapid evaporation rate of the coating solution, slight differences in the amount of coating solution applied to different areas during large-area coating can lead to uneven active layer thickness, which in turn affects the service life of the catalytic electrode. Furthermore, repeatedly dipping a brush into the coating solution can cause contamination and waste, thereby increasing production costs. Therefore, it is necessary to design a device that can uniformly cover the substrate with the coating solution while minimizing the amount of coating solution used.

[0003] For example, utility model patent CN216800474U discloses a handheld coating device for catalytic electrodes, which consists of a coating liquid inlet tank, a flow control module, a connecting pipe, a coating liquid outlet tank, a sealing plate, a fixing slot, a brush fixing block, screws, and a brush. The upper part of the flow control module is connected to the coating liquid inlet tank, and the lower part is connected to the coating liquid outlet tank through the connecting pipe. The coating liquid outlet tank is provided with air holes, and several outlets are evenly arranged at the bottom of the coating liquid outlet tank. When the surface of the sealing plate is perpendicularly attached to the lower outlet of the outlet, it can be kept in a sealed state. This device can effectively and evenly coat the coating liquid on the surface of the catalytic electrode substrate, and the coating speed is fast, saving the amount of coating liquid used. The device has a simple structure and is easy to install.

[0004] However, this utility model has the following shortcomings: the brush length is fixed, which cannot be adapted to different coating requirements (thick coating / thin coating), and it is easy to cause coating defects (such as thick coating omissions and thin coating accumulation); with only a single set of brushes, there is a lack of coordination between initial distribution and fine finishing during coating, resulting in insufficient coating uniformity and smoothness; the device cannot be folded and stored, the brushes and feeding device are not protected, they are easily damaged during carrying and transportation, and occupy a large space. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a catalytic electrode coating brush, which solves the problems of existing devices having fixed brush lengths, making them unable to adapt to different coating requirements (thick / thin coating), easily leading to coating defects (such as missed coating in thick coating and accumulation in thin coating); having only a single set of brushes, lacking coordination between initial distribution and fine finishing during coating, resulting in insufficient coating uniformity and smoothness; and having a non-foldable and non-protected device for storage, with no protection for the brushes and feeding device, making them easily damaged during carrying and transportation, and occupying a large space.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A catalytic electrode coating brush includes a brush head fixing sleeve, a brush rod hinged to the center of the brush head fixing sleeve along its length via a hinge seat, a feeding device detachably connected to the outer wall of the brush rod, a threaded sleeve slidably connected to the outer wall of the brush rod, the connecting end of the threaded sleeve having an internal thread and being threadedly connected to the hinge seat, and further comprising:

[0008] A brush holder has slide bars fixedly installed on both sides of its connecting end, and the brush head fixing sleeve has a guide groove adapted to the sliding of the slide bars;

[0009] The boar bristle brush is divided into a sparse bristle brush group and a dense bristle brush group, both of which are fixedly installed on the brush holder, with the dense bristle brush group located in front of the sparse bristle brush group.

[0010] A sliding groove is formed along the axial direction of the brush rod on the outer wall surface of the brush rod, and several limiting ring grooves are formed on the sliding groove;

[0011] The adjustable limit sleeve is slidably connected to the outer wall of the brush rod, and a locking block is fixedly installed on its inner wall.

[0012] The adjustment frame has a U-shaped limiting frame that is detachably installed on its inner wall. The U-shaped limiting frame is used to adjust the length of the pig bristle brush.

[0013] Preferably, the feeding device includes a liquid dispensing device, a double-headed limiting frame is fixedly installed on the upper wall of the liquid dispensing device, and the double-headed limiting frame is slidably engaged with the brush rod; two positioning frames are fixedly installed on the front wall of the liquid dispensing device, and cylindrical limiting pins are fixedly installed on the lower wall of each of the two positioning frames; a liquid dispensing connecting pipe is fixedly installed on the rear wall of the liquid dispensing device, and a flow control module is provided at the connection end of the liquid dispensing connecting pipe and the liquid dispensing device, the flow control module consisting of a flow controller and a flow control valve; the liquid dispensing connecting pipe is engaged with the engaging end of the double-headed limiting frame away from the positioning frame.

[0014] Preferably, the upper wall of the adjusting frame has two limiting pin holes, which are correspondingly inserted and adapted to the cylindrical limiting pins; the connecting end of the adjusting limiting sleeve has an adapter groove, the adjusting frame is fitted onto the adapter groove and is rotatably connected to the adapter groove; the locking block is slidably connected to the sliding groove and can be engaged with the limiting ring groove, and the position of the U-shaped limiting frame can be adjusted by sliding the adjusting limiting sleeve.

[0015] Preferably, the adjusting limit sleeve is internally threaded with a threaded pin, and the brush head fixing sleeve is provided with a snap-fit ​​groove, wherein the threaded pin is inserted into and adapted to the snap-fit ​​groove.

[0016] Preferably, the outer wall surface of the brush rod is fixedly fitted with an anti-slip pad.

[0017] Preferably, the outer wall surface of the threaded sleeve is provided with several anti-slip textures.

[0018] Preferably, the adjusting frame and the U-shaped limiting frame are connected by screws.

[0019] Beneficial effects

[0020] This invention provides a catalytic electrode coating brush, which has the following beneficial effects:

[0021] By adjusting the locking block of the limiting sleeve and the sliding groove and limiting ring groove of the brush rod, the adjusting frame and U-shaped limiting frame are driven to slide, and the matching method of adjusting the extension length of the pig bristle brush is used to solve the problem that the brush length is not adjustable and cannot be adapted to different coating needs.

[0022] By arranging sparse and dense brush groups in front and behind on the brush holder, and using the combination of sparse brush groups for initial coating and dense brush groups for fine finishing, the problem of poor uniformity and insufficient smoothness in coating with a single brush is solved.

[0023] By hinged connection between the brush rod and the brush head fixing sleeve, locking the angle with a threaded sleeve, and making the feeding device detachable, and by using an adjustment frame to wrap around the brush head, the problems of the device being unstorable, occupying a large space, and having easily damaged core components are solved. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the pig bristle brush of this utility model;

[0026] Figure 3 This is a schematic diagram of the double-headed limiting frame structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the adjustment frame structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the storage structure of this utility model.

[0029] In the diagram: 1. Brush head fixing sleeve; 2. Hinge seat; 3. Brush rod; 4. Threaded sleeve; 5. Brush fixing frame; 6. Sliding strip; 7. Guide groove; 8. Sparse brush group; 9. Dense brush group; 10. Sliding groove; 11. Limiting ring groove; 12. Adjusting limiting sleeve; 13. Locking block; 14. Adjusting frame; 15. U-shaped limiting frame; 16. Liquid dispensing device; 17. Double-headed limiting frame; 18. Positioning frame; 19. Cylindrical limiting pin; 20. Dispensing connection pipe; 21. Flow controller; 22. Flow control valve; 23. Limiting pin hole; 24. Adapter groove; 25. Threaded pin; 26. Locking groove; 27. Anti-slip pad. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Please see Figures 1-5 A catalytic electrode coating brush, comprising:

[0032] The brush head fixing sleeve 1 has a brush rod 3 hinged to its center along the length direction via a hinge seat 2. A feeding device is detachably connected to the outer wall of the brush rod 3. A threaded sleeve 4 is slidably connected to the outer wall of the brush rod 3. The connecting end of the threaded sleeve 4 has an internal thread and is threadedly connected to the hinge seat 2.

[0033] The brush holder 5 has slide bars 6 fixedly installed on both sides of its connecting end, and the brush head fixing sleeve 1 has a guide groove 7 that is adapted to slide the slide bars 6.

[0034] The boar bristle brush is divided into a sparse bristle brush group 8 and a dense bristle brush group 9, both of which are fixedly installed on the brush holder 5, with the dense bristle brush group 9 located in front of the sparse bristle brush group 8.

[0035] A sliding groove 10 is formed along the axial direction of the brush rod 3 on the outer wall surface of the brush rod 3, and a plurality of limiting ring grooves 11 are formed on the sliding groove 10;

[0036] Adjustable limit sleeve 12 is slidably connected to the outer wall of brush rod 3, and a locking block 13 is fixedly installed on its inner wall;

[0037] The adjusting frame 14 has a U-shaped limiting frame 15 installed on its inner wall. The U-shaped limiting frame 15 is used to adjust the length of the pig bristle brush.

[0038] In use, the brush head fixing sleeve 1 provides an installation carrier and protection for components such as the brush fixing frame 5 and the hinge seat 2; the hinge seat 2 enables the brush rod 3 to be hinged to the brush head fixing sleeve 1, allowing the brush rod 3 to adjust its retracted and extended angles; the brush rod 3 provides installation support for components such as the feeding device and the adjusting limit sleeve 12, while also facilitating the operator's grip; the threaded sleeve 4 is threadedly connected to the hinge seat 2, locking the adjusted angle of the brush rod 3 to prevent loosening; the brush fixing frame 5 supports the sparse brush group 8 and the dense brush group 9, realizing the installation and fixing of the brushes; the slide bar 6 cooperates with the guide groove 7 to guide the brush fixing frame 5 to slide smoothly, facilitating the installation of the brushes; the guide groove 7 provides sliding guidance for the slide bar 6, ensuring the precise movement of the brush fixing frame 5; the sparse brush group 8 performs preliminary coating on the catalytic electrode, making the coating liquid evenly distributed; the dense brush group 9 performs fine coating after the sparse brush group 8, improving the smoothness and uniformity of the coating; the slide groove 10 is for locking... Block 13 provides a sliding guide to regulate the movement trajectory of the adjusting limit sleeve 12; the limiting ring groove 11 engages with the locking block 13 to fix the position of the adjusting limit sleeve 12; the adjusting limit sleeve 12 drives the adjusting frame 14 and the U-shaped limiting frame 15 to slide along the brush rod 3 to achieve position adjustment; the locking block 13 is slidably connected to the sliding groove 10 and can be locked into the limiting ring groove 11 to lock the position of the adjusting limit sleeve 12; the adjusting frame 14 provides an installation base for the U-shaped limiting frame 15 and drives it to move synchronously; the U-shaped limiting frame 15 limits the extension length of the bristle brush. The core of adjusting the bristle length is to "match the coating requirements": long bristles focus on "thick coating, protecting the substrate, and adapting to high viscosity", while short bristles focus on "thin coating, high precision, and adapting to low viscosity", avoiding coating defects (such as missed coating, accumulation, scratches) due to improper length, and ultimately achieving stable performance of the catalytic electrode (uniform catalytic activity and service life).

[0039] Please see Figure 3 The feeding device includes a liquid dispensing device 16, a double-headed limiting frame 17 fixedly installed on the upper wall of the liquid dispensing device 16, and the double-headed limiting frame 17 slidably engaging with the brush rod 3; two positioning frames 18 fixedly installed on the front wall of the liquid dispensing device 16, and cylindrical limiting pins 19 fixedly installed on the lower wall of each of the two positioning frames 18; a liquid dispensing connecting pipe 20 fixedly installed on the rear wall of the liquid dispensing device 16, and a flow control module provided at the connection end between the liquid dispensing connecting pipe 20 and the liquid dispensing device 16, the flow control module consisting of a flow controller 21 and a flow control valve 22; the liquid dispensing connecting pipe 20 engages with the engaging end of the double-headed limiting frame 17 away from the positioning frame 18.

[0040] In use, the liquid dispensing device 16 stores the catalytic coating liquid and stably delivers it; the double-headed limiting frame 17 enables the sliding engagement of the liquid dispensing device 16 and the brush rod 3, ensuring stable installation; the positioning frame 18 provides installation support for the cylindrical limiting pin 19; the cylindrical limiting pin 19 is inserted into the limiting pin hole 23 to fix the relative position of the liquid dispensing device 16 and the adjusting frame 14; the liquid dispensing connecting pipe 20 connects to an external coating liquid supply device to deliver the coating liquid to the liquid dispensing device 16; the flow controller 21 precisely controls the output flow rate of the coating liquid to ensure uniform coating; the flow control valve 22 controls the on / off of the coating liquid to avoid waste or leakage.

[0041] Please see Figure 4 The upper wall of the adjusting frame 14 has two limiting pin holes 23, which are inserted into the cylindrical limiting pins 19 one by one; the connecting end of the adjusting limiting sleeve 12 has a transition groove 24, the adjusting frame 14 is fitted on the transition groove 24 and is rotatably connected to the transition groove 24; the locking block 13 is slidably connected to the sliding groove 10 and can be locked with the limiting ring groove 11, and the position of the U-shaped limiting frame 15 is adjusted by adjusting the sliding of the adjusting limiting sleeve 12.

[0042] In use, the adapter groove 24 provides rotational installation space for the adjustment frame 14, allowing the adjustment frame 14 to drive the U-shaped limit frame 15 to move with the adjustment limit sleeve 12; the locking block 13 slides along the slide groove 10 and locks into the limit ring groove 11 at different positions to realize multi-position positioning of the adjustment limit sleeve 12, and then adjusts the length of the pig bristle brush by adjusting the height of the U-shaped limit frame 15.

[0043] Please see Figure 2 The adjusting limit sleeve 12 has a threaded pin 25 connected to its internal thread, and the brush head fixing sleeve 1 has a snap-fit ​​groove 26, which is matched with the threaded pin 25.

[0044] In use, the threaded pin 25 is inserted into the snap-fit ​​groove 26 to further lock the relative position of the adjustment limit sleeve 12 and the brush head fixing sleeve 1, preventing the adjustment limit sleeve 12 from sliding accidentally during the coating process and improving structural stability.

[0045] Please see Figure 1 The outer wall of the brush handle 3 is fixedly fitted with an anti-slip pad 27. When in use, the anti-slip pad 27 increases the friction between the operator's hand and the brush handle 3, improves the grip stability, and prevents slipping during the coating process.

[0046] Please see Figure 5 The outer wall of the threaded sleeve 4 is provided with several anti-slip textures. When in use, the anti-slip textures increase the friction between the hand and the threaded sleeve 4, making it easier for the operator to rotate and adjust the threaded sleeve 4, and improving the convenience of angle locking operation.

[0047] Please see Figure 4The adjusting bracket 14 and the U-shaped limiting bracket 15 are connected by screws. In use, the screws enable the adjusting bracket 14 and the U-shaped limiting bracket 15 to be detachably connected, which facilitates the replacement of U-shaped limiting brackets 15 of different specifications, or the disassembly and adjustment of the position of the U-shaped limiting bracket 15 according to the coating requirements.

[0048] Example 1: In this example, the extension length of the pig bristle brush is precisely adjusted by a U-shaped limiting frame. Combined with the coordination of dense and sparse brush groups and the control of coating liquid flow, the precise adaptation to different coating requirements (thick coating / thin coating) is achieved, avoiding coating defects and ensuring the stability of catalytic electrode performance.

[0049] Specifically, adjust the brush length according to the needs before coating: if thick coating is required, to adapt to high viscosity coating liquid, or to protect the electrode substrate, hold the adjustment limit sleeve 12, slide the slide groove 10 backward, and the locking block 13 slides synchronously and locks into the limit ring groove 11, driving the adjustment frame 14 and the U-shaped limit frame 15 to move backward, releasing more pig bristle brush length (long bristle state).

[0050] For thin coating, high precision, or application to low-viscosity coating solutions, slide the adjusting limit sleeve 12 forward. The locking block 13 engages with the front limiting ring groove 11, and the U-shaped limiting frame 15 moves forward to compress the brush, shortening its extension length (short bristle state). Then, install the feeding device: attach the double-headed limiting frame 17 of the coating solution outlet 16 to the brush rod 3, and insert the cylindrical limiting pin 19 of the positioning frame 18 into the limiting pin hole 23 of the adjusting frame 14 to fix the position of the feeding device. Adjust the coating solution output flow rate according to the coating solution viscosity and brush length through the flow controller 21 and flow control valve 22, and apply the coating with the bristle brush.

[0051] During the coating process, the sparse brush group 8 first performs the preliminary coating to ensure that the coating liquid is evenly distributed; the dense brush group 9 then follows up with fine coating. In the case of long bristles, it can buffer the coating pressure and protect the substrate, while in the case of short bristles, it can improve the smoothness of the coating. There are no problems of missed coating, accumulation or scratches throughout the process, ensuring uniform catalytic activity.

[0052] Example 2: In this example, the coating brush is compactly stored by disassembling, folding, flipping and shrinking the parts, saving carrying and storage space, while protecting the brush and core components, and adapting to mobile operation scenarios.

[0053] Specifically, when storing, first disassemble the feeding device: pull out the cylindrical limit pin 19 to disengage the liquid dispenser 16 from the adjusting frame 14, then slide the double-headed limiting frame 17 along the brush rod 3 to complete the disassembly and storage of the feeding device. Unscrew the screws connecting the adjusting frame 14 and the U-shaped limiting frame 15 to disassemble the U-shaped limiting frame 15.

[0054] Next, slide the adjusting limit sleeve 12 to its shortest stroke. The locking block 13 engages with the rearmost limiting ring groove 11, and the adjusting frame 14 moves backward. Loosen the threaded sleeve 4 (the anti-slip texture on the outer wall facilitates operation), release the angle lock between the brush rod 3 and the hinge seat 2, and fold the brush rod 3 around the hinge seat 2 so that the brush head fixing sleeve 1 fits against the brush rod 3. Fully insert the folded brush head fixing sleeve 1 into the adjusting frame 14, and let the adjusting frame 14 wrap around the brush head fixing sleeve 1. After disassembling the U-shaped limiting frame 15, reverse it and then use screws to lock it inside the adjusting frame 14 to prevent damage when not in use. It can be carried without an additional storage box, effectively saving space and protecting the core components of the coating brush.

[0055] 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 catalysed electrode coating brush characterised in that, Including brush head fixed cover (1), the brush head fixed cover (1) is articulated with brush rod (3) through articulated seat (2) along the length direction center, the outer wall of brush rod (3) is detachably connected with the feeding device, the outer wall of brush rod (3) is slidably connected with threaded sleeve (4), the connecting end of threaded sleeve (4) is provided with internal thread, and is threadedly connected with articulated seat (2), further including: Brush fixed frame (5), its connecting end both sides are fixedly installed with slide bar (6), the brush head fixed cover (1) is provided with guide groove (7) slidably adapted with slide bar (6); Pig bristle brush is divided into sparse hair brush group (8) and dense hair brush group (9), and is fixedly installed on brush fixed frame (5), and dense hair brush group (9) is located in front of sparse hair brush group (8); Slide groove (10) is provided on the outer wall surface of brush rod (3) along the axial direction of brush rod (3), and a plurality of limiting ring grooves (11) are formed in the slide groove (10); Adjusting limiting sleeve (12) is slidably connected to the outer wall of brush rod (3), and a clamping block (13) is fixedly installed on the inner wall of adjusting limiting sleeve (12); Adjusting frame (14) is provided with a U-shaped limiting frame (15) detachably installed on the inner wall of adjusting frame (14), and the U-shaped limiting frame (15) is used for adjusting the length of pig bristle brush.

2. A catalysed electrode coating brush according to claim 1, characterised in that The feeding device comprises a liquid applicator (16), the upper wall surface of the liquid applicator (16) is fixedly installed with a double-head limiting frame (17), the double-head limiting frame (17) is slidably connected with the brush rod (3); the front wall surface of the liquid applicator (16) is fixedly installed with two positioning frames (18), the lower wall surface of each of the two positioning frames (18) is fixedly installed with a cylindrical limiting pin (19); the rear wall surface of the liquid applicator (16) is fixedly installed with an outlet connecting pipe (20), the connecting end of the outlet connecting pipe (20) and the liquid applicator (16) is provided with a flow control module, the flow control module is composed of a flow controller (21) and a flow control valve (22); the outlet connecting pipe (20) is connected with the clamping end of the double-head limiting frame (17) away from the positioning frame (18).

3. A catalysed electrode coating brush according to claim 2, characterised in that, The upper wall surface of the adjusting frame (14) is provided with two limiting pin holes (23), the limiting pin holes (23) are one-to-one correspondingly inserted and fitted with the cylindrical limiting pins (19); the connecting end of the adjusting limiting sleeve (12) is provided with an adapter groove (24), the adjusting frame (14) is sleeved on the adapter groove (24) and is rotatably connected with the adapter groove (24); the clamping block (13) is slidably connected with the slide groove (10) and can be clamped with the limiting ring grooves (11), the position of the U-shaped limiting frame (15) is adjusted by sliding the adjusting limiting sleeve (12).

4. A catalysed electrode coating brush according to claim 1, characterised in that The adjusting limiting sleeve (12) is internally threadedly connected with a threaded pin (25), the brush head fixed cover (1) is provided with a clamping groove (26), and the threaded pin (25) is inserted and fitted with the clamping groove (26).

5. A catalysed electrode coating brush according to claim 1, characterised in that The outer wall surface of the brush rod (3) is fixedly provided with a non-slip pad (27).

6. A catalysed electrode coating brush according to claim 1, characterised in that The outer wall surface of the threaded sleeve (4) is provided with a plurality of anti-skid lines.

7. A catalysed electrode coating brush according to claim 1, characterised in that The adjusting frame (14) and the U-shaped limiting frame (15) are connected by screws. The threaded sleeve (4) is provided with a plurality of anti-skid lines.

Images