Nanometer grinding brush with high heat resistance

Abstract

The utility model relates to the technical field of grinding brushes, in particular to a nanometer grinding brush with high heat resistance, which comprises a handle which is of a hollow structure and is filled with grinding fluid, and further comprises a steel wire brush arranged at the bottom of the handle, the pressing piece is arranged on the surface of the handle, a liquid outlet is formed in the bottom of the handle, the pressing piece is located over the liquid outlet, and the grinding liquid can flow out of the liquid outlet and act on the surface of the workpiece by operating the pressing piece. According to the utility model, the grinding fluid supply system is combined with the grinding brush, the supply of the grinding fluid is realized through pressing type fluid discharge, and an operator can finish the synchronous operation of grinding and fluid supplement by holding with one hand, so that the working efficiency is improved; the modular quick-release structural design is matched with the interface component protected by the nano coating, so that the connection reliability under the high-temperature working condition is ensured, the two technical problems that a traditional handheld grinding brush is insufficient in heat resistance under the high-temperature environment and grinding liquid is inconvenient to supply are solved, and the handheld grinding brush is particularly suitable for continuous precise grinding operation of workpieces after heat treatment.

Description

Technical Field

[0001] This utility model relates to the field of abrasive brush technology, and in particular to a nano abrasive brush with high heat resistance. Background Technology

[0002] In machining, mold repair, and other fields, handheld abrasive brushes are a commonly used surface treatment tool. Traditional abrasive brushes mainly consist of a brush head and a handle, and the operator holds the abrasive brush to grind the surface of the workpiece.

[0003] Existing handheld grinding brushes suffer from the technical drawback of inconvenient grinding slurry supply during use: operators must simultaneously hold both the grinding brush and the grinding slurry spray bottle for coordinated operation, or frequently interrupt the grinding process to refill with grinding slurry. While the addition of grinding slurry effectively improves the brush's heat resistance and grinding effect, this external supply method leads to cumbersome operation procedures, poor work continuity, and significantly reduced work efficiency. Especially during long-duration grinding operations, operators need to repeatedly perform grinding-replenishment cycles, which not only increases labor intensity but also makes it difficult to ensure precise control of the grinding slurry dosage, affecting the consistency of the final processing quality. Utility Model Content

[0004] The purpose of this invention is to provide a nano-abrasive brush with high heat resistance, which solves the problem that abrasive brushes are inconvenient to use with abrasive fluid, resulting in a decrease in the overall heat resistance of the abrasive brush.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat-resistant nano-abrasive brush includes a hollow handle filled with abrasive fluid, and further includes:

[0007] A wire brush is located at the bottom of the handle.

[0008] The pressing element is located on the surface of the handle. There is a liquid outlet at the bottom of the handle. The pressing element is located directly above the liquid outlet. By operating the pressing element, the grinding liquid can flow out from the liquid outlet and act on the surface of the workpiece.

[0009] A fastener, located at the bottom of the handle, is used for detachable mounting of the wire brush.

[0010] Preferably, the pressing component includes a pressing block, a connecting shaft is fixedly installed at the bottom end of the pressing block, the connecting shaft is slidably inserted into the top of the handle, its bottom end is located inside the cavity of the handle, a piston sleeve is fixedly installed on the surface of the connecting shaft inside the cavity, an extension rod is fixedly installed at the bottom end of the connecting shaft, and a conical sealing plug is fixedly installed at the bottom end of the extension rod.

[0011] Preferably, a partition with a circular hole is fixedly installed at the middle position inside the liquid outlet, the extension rod passes through the circular hole, and the conical sealing plug is located at the bottom of the partition.

[0012] Preferably, a first spring is sleeved on the surface of the connecting shaft, and the two ends of the first spring are fixedly connected to the pressing block and the handle, respectively. A sealing ring is provided on the top of the handle at the position through which the connecting shaft passes.

[0013] Preferably, the wire brush includes a brush plate and a bundle of steel wires, the bundle of steel wires being uniformly welded to the bottom of the brush plate, and the surface of the brush plate having through holes corresponding to the liquid outlet.

[0014] Preferably, the brush plate has two insertion holes at its end, the fixing member includes a fixing rod, the fixing rod is fixedly installed at the bottom of the handle, the surface of the fixing rod has two insertion rods slidingly passing through it, the two insertion rods are fixedly installed with the same connecting rod at one end of the brush plate, and the surface of each of the two insertion rods is fitted with a second spring, the two ends of the second spring being fixedly connected to the connecting rod and the fixing rod respectively.

[0015] Preferably, the top of the handle is provided with an injection port, and the injection port is threadedly connected with a sealing cap.

[0016] Preferably, the main body of the handle, wire brush, pressing component, and fixing component are all made of high-temperature resistant alloy material, and each component is coated with a layer of nano-level ceramic heat-resistant coating.

[0017] This utility model has at least the following beneficial effects:

[0018] By combining the slurry supply system with the slurry brush, the slurry is supplied through a press-type dispensing mechanism. The operator can complete the simultaneous slurry replenishment and grinding operations with one hand, improving work efficiency. The modular quick-release structure design, combined with the interface components protected by a nano-coating, ensures connection reliability under high-temperature conditions. It solves the two major technical problems of insufficient heat resistance and inconvenient slurry supply of traditional handheld slurry brushes in high-temperature environments, making it particularly suitable for continuous precision slurry grinding of workpieces after heat treatment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the handle of this utility model;

[0022] Figure 3 This is a schematic diagram of the connecting shaft structure of this utility model;

[0023] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the liquid outlet structure of this utility model.

[0025] In the diagram: 1. Handle; 11. Inlet; 12. Sealing cap; 13. Outlet; 2. Wire brush; 21. Wire bundle; 22. Connecting hole; 23. Brush plate; 3. Pressing component; 31. Pressing block; 32. First spring; 33. Connecting shaft; 34. Piston sleeve; 35. Extension rod; 36. Conical sealing plug; 37. Partition plate; 4. Fixing component; 41. Connecting rod; 42. Fixing rod; 43. Insert rod; 44. Second spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Reference Figure 1-5 A heat-resistant nano-abrasive brush includes a hollow handle 1 filled with abrasive fluid, and further includes:

[0029] Wire brush 2 is located at the bottom of handle 1;

[0030] Pressing element 3 is provided on the surface of handle 1. A liquid outlet 13 is provided at the bottom of handle 1. Pressing element 3 is located directly above the liquid outlet 13. By operating pressing element 3, the grinding liquid can flow out from the liquid outlet 13 and act on the surface of the workpiece.

[0031] Fixture 4 is located at the bottom of handle 1 and is used for detachable installation of wire brush 2.

[0032] The handle 1 has a hollow structure for storing grinding fluid. The wire brush 2 is fixed to the bottom of the handle 1 and directly contacts the workpiece for grinding. A pressing element 3 is installed on the surface of the handle 1 and located directly above the outlet 13. By pressing, the position of the pressing element 3 is changed, opening the outlet 13 and allowing the grinding fluid to flow onto the workpiece surface. A fixing element 4 is located at the bottom of the handle 1, used to connect and fix the wire brush 2, and allows for detachable installation of the wire brush 2, facilitating replacement of worn wire brush 2. The main functional components of the grinding brush are rationally arranged; the hollow handle 1 storing the grinding fluid, the pressing element 3 controlling the fluid flow, and the wire brush 2 performing the grinding work together, improving the practicality of the grinding brush. The detachable wire brush 2 reduces maintenance costs; users can replace the wire brush 2 as needed, extending the overall service life of the grinding brush.

[0033] Furthermore, the pressing component 3 includes a pressing block 31. A connecting shaft 33 is fixedly installed at the bottom end of the pressing block. The connecting shaft 33 is slidably inserted into the top of the handle 1, with its bottom end located inside the cavity of the handle 1. A piston sleeve 34 is fixedly installed on the surface of the connecting shaft 33 inside the cavity. An extension rod 35 is fixedly installed at the bottom end of the connecting shaft 33. A conical sealing plug 36 is fixedly installed at the bottom end of the extension rod 35. The size of the piston sleeve 34 is matched with the size of the liquid outlet 13, so that the grinding liquid in the liquid outlet 13 can be smoothly pushed out. The material of the conical sealing plug 36 is changed to polytetrafluoroethylene (PTFE) coated stainless steel core, which is resistant to temperature 260℃. An O-ring silicone ring (high temperature resistant to 300℃) is embedded in the round hole of the partition 37 to form a double-stage seal with the conical sealing plug 36.

[0034] The pressing block 31 serves as the operating end. When the user presses it, it causes the connecting shaft 33 to slide downwards. The connecting shaft 33 passes through the top of the handle 1 and enters its cavity. The piston sleeve 34 fixed on the connecting shaft 33 moves accordingly, affecting the liquid flow near the outlet 13. The extension rod 35 and the conical sealing plug 36 connected to the bottom of the connecting shaft 33 also move downwards simultaneously. When the conical sealing plug 36 leaves the circular hole of the partition 37, the liquid outlet channel opens, allowing the grinding fluid to flow out. This structural design of the pressing component 3 allows the user to accurately control the opening and closing of the outlet 13 with a simple pressing action, making operation convenient and quick. At the same time, the fixed connection between the components ensures the stability of the coordinated work of the components during the pressing process, ensuring the stability and reliability of the grinding fluid flow. Since only a portion of the grinding fluid is dispensed with each press, there is no waste of the grinding fluid.

[0035] Furthermore, a baffle 37 with a round hole is fixedly installed in the middle of the inside of the outlet 13, an extension rod 35 passes through the round hole, and a conical sealing plug 36 is located at the bottom of the baffle 37.

[0036] The baffle 37 is installed in the middle of the outlet 13, and its circular hole provides a through passage for the extension rod 35. Under normal conditions, the conical sealing plug 36 is located at the bottom of the baffle 37 and blocks the circular hole, preventing the grinding fluid from flowing out. When the pressing element 3 is activated, the extension rod 35 moves the conical sealing plug 36 down away from the circular hole, and the grinding fluid can flow out through the circular hole and the outlet 13.

[0037] Furthermore, a first spring 32 is sleeved on the surface of the connecting shaft 33. The two ends of the first spring 32 are fixedly connected to the pressing block 31 and the handle 1, respectively. A sealing ring is provided at the top of the handle 1 at the position through which the connecting shaft 33 passes.

[0038] The first spring 32 is sleeved on the surface of the connecting shaft 33, with its two ends fixed to the pressing block 31 and the handle 1, respectively. When the pressing block 31 is pressed, the first spring 32 is compressed, storing elastic potential energy. After the pressing block 31 is released, the first spring 32 releases its elastic potential energy, pushing the pressing block 31 to reset, which in turn causes the connecting shaft 33, piston sleeve 34, extension rod 35, and conical sealing plug 36 to move upward, resealing the outlet 13. The sealing ring at the top of the handle 1, corresponding to the position through which the connecting shaft 33 passes, prevents the grinding fluid from leaking from the gap between the connecting shaft 33 and the handle 1. The first spring 32 enables the automatic reset function of the pressing component 3, eliminating the need for the user to manually return the pressing component 3 to its original position, thus improving ease of use. The sealing ring enhances the sealing performance of the grinding brush, preventing grinding fluid leakage from affecting the operating environment and equipment, and ensuring the normal operation of the grinding brush.

[0039] Furthermore, the wire brush 2 includes a brush plate 23 and a wire bundle 21. The wire bundle 21 is uniformly welded to the bottom of the brush plate 23. The surface of the brush plate 23 is provided with through holes, and the through holes correspond to the liquid outlet 13.

[0040] The wire brush 2 consists of a brush plate 23 and a bundle of steel wires 21 uniformly welded to the bottom of the brush plate 23. The through holes on the surface of the brush plate 23 correspond to the liquid outlet 13. The grinding fluid flowing out of the liquid outlet 13 flows through the through holes onto the steel wire bundle 21 and then acts on the surface of the workpiece. The steel wire bundle 21 directly grinds the workpiece. The corresponding design of the through holes on the brush plate 23 and the liquid outlet 13 allows the grinding fluid to flow accurately to the part that needs to be ground, giving full play to the auxiliary role of the grinding fluid, such as lubrication and heat dissipation, and further improving the grinding effect.

[0041] Furthermore, two insertion holes are provided at the end of the brush plate 23. The fixing member 4 includes a fixing rod 42, which is fixedly installed at the bottom of the handle 1. Two insertion rods 43 slide through the surface of the fixing rod 42. The two insertion rods 43 are fixedly installed with the same connecting rod 41 at one end of the brush plate 23. A second spring 44 is sleeved on the surface of each of the two insertion rods 43. The two ends of the second spring 44 are fixedly connected to the connecting rod 41 and the fixing rod 42, respectively.

[0042] Two insertion holes at the end of the brush plate 23 are used to mate with the fixing member 4. The fixing rod 42 is fixed to the bottom of the handle 1, and the insertion rod 43 can slide on the surface of the fixing rod 42. When installing the wire brush 2, pull the connecting rod 41 to move the insertion rod 43 outward, align the brush plate 23 with the bottom of the handle 1, release the connecting rod 41, and under the action of the second spring 44, the insertion rod 43 inserts into the insertion hole at the end of the brush plate 23, thus fixing the brush plate 23 to the handle 1. When disassembling, pull the connecting rod 41 again to overcome the elastic force of the second spring 44, so that the insertion rod 43 exits from the insertion hole, and the brush plate 23 can be removed, realizing quick and convenient installation and disassembly of the wire brush 2. The elastic force provided by the second spring 44 ensures the stability of the connection between the insertion rod 43 and the insertion hole. During the grinding process, the brush plate 23 will not easily loosen, ensuring the smooth progress of the grinding operation. Meanwhile, the simple structural design reduces manufacturing costs and maintenance difficulty. The liquid outlet 13 protrudes from the bottom of the handle 1 and is inserted into the connection hole 22 of the brush plate 23, providing initial fixation of the brush plate 23. This prevents the brush plate 23 from moving relative to the liquid outlet 13 during the grinding process, and the insertion rod 43 prevents the brush plate 23 from rotating relative to the liquid outlet 13.

[0043] Furthermore, an injection port 11 is provided at the top of the handle 1, and a sealing cap 12 is threadedly connected to the injection port 11.

[0044] Inlet 11 is located at the top of handle 1 and is used to add polishing fluid to the hollow structure inside handle 1. Sealing cap 12 is connected to inlet 11 by threads. After adding polishing fluid, tighten sealing cap 12 to prevent polishing fluid leakage and the entry of impurities such as dust.

[0045] Furthermore, the main body of the handle 1, wire brush 2, pressing part 3, and fixing part 4 are all made of high-temperature resistant alloy materials, and each part is coated with a layer of nano-level ceramic heat-resistant coating, which is a plasma-sprayed Al2O3-TiO2 composite ceramic layer.

[0046] By combining high-temperature resistant alloy materials with a nano-level ceramic heat-resistant coating, the heat resistance of the grinding brush is significantly improved, enabling it to operate stably in high-temperature environments. This broadens the application scenarios of the grinding brush, making it suitable for high-temperature industrial processing and grinding of workpieces after heat treatment. Simultaneously, the wear resistance of the coating helps extend the service life of various components and reduce maintenance costs.

[0047] It should be specifically noted that the "hand-held grinding of high-temperature workpieces" referred to in this application refers to intermittent contact grinding of workpieces with a temperature of 600-800℃. In practical applications, operators can achieve safe operation through the following methods:

[0048] Using a segmented grinding method: the single contact time is controlled at 3 to 5 seconds, and the thermal insulation properties of the nano-coating (thermal conductivity <1.5W / m·K) are used to ensure that heat is not quickly conducted to the handle;

[0049] Equipped with standard heat-resistant gloves (compliant with ISO 12127-1), the operating surface temperature can be reduced to below 60°C upon contact.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nano-abrasive brush with high heat resistance, comprising a handle (1) in a hollow structure and internally provided with an abrasive liquid, characterized in that, Also include: Steel wire brush (2) is arranged at the bottom of the handle (1); Pressing piece (3) is arranged on the surface of the handle (1), and the liquid outlet (13) is arranged at the bottom of the handle (1). The pressing piece (3) is located directly above the liquid outlet (13), and the polishing liquid can flow out of the liquid outlet (13) and act on the surface of the workpiece by operating the pressing piece (3); The fixing piece (4) is arranged at the bottom of the handle (1) and is used for detachably mounting the steel wire brush (2).

2. The nanometer grinding brush with high heat resistance according to claim 1, characterized in that, The pressing piece (3) includes a pressing block (31), and the bottom end of the pressing block (31) is fixedly installed with a connecting shaft (33). The connecting shaft (33) is slidably inserted into the top of the handle (1), and the bottom end thereof is located inside the cavity of the handle (1). The surface of the connecting shaft (33) located inside the cavity is fixedly installed with a piston sleeve (34), and the bottom end of the connecting shaft (33) is fixedly installed with an extension rod (35). The bottom end of the extension rod (35) is fixedly installed with a conical sealing plug (36).

3. The nanometer grinding brush with high heat resistance according to claim 2, characterized in that, A partition plate (37) with a circular hole is fixedly installed at the inner middle position of the liquid outlet (13), the extension rod (35) penetrates through the circular hole, and the conical sealing plug (36) is located at the bottom of the partition plate (37).

4. The nanometer grinding brush with high heat resistance according to claim 3, characterized in that, The surface of the connecting shaft (33) is sleeved with a first spring (32), and the two ends of the first spring (32) are fixedly connected with the pressing block (31) and the handle (1) respectively. The top of the handle (1) is provided with a sealing ring relative to the position penetrated by the connecting shaft (33).

5. The nanometer abrasive brush of claim 1, wherein the nanometer abrasive brush is heat resistant. The steel wire brush (2) includes a brush plate (23) and a steel wire bundle (21), the steel wire bundle (21) is uniformly welded at the bottom of the brush plate (23), and the surface of the brush plate (23) is provided with a through hole corresponding to the liquid outlet (13).

6. The nanometer grinding brush with high heat resistance according to claim 5, characterized in that, The end of the brush plate (23) is provided with two insertion holes, the fixing piece (4) includes a fixing rod (42), the fixing rod (42) is fixedly installed at the bottom of the handle (1), the surface of the fixing rod (42) is slidably penetrated by two insertion rods (43), and the same connecting rod (41) is fixedly installed at one end of the two insertion rods (43). The surfaces of the two insertion rods (43) are sleeved with second springs (44), and the two ends of the second springs (44) are fixedly connected with the connecting rod (41) and the fixing rod (42) respectively.

7. The nanometer abrasive brush of claim 1, wherein the nanometer abrasive brush is heat resistant. The top of the handle (1) is provided with an injection port (11), and the injection port (11) is threadedly connected with a sealing cover (12).

8. The nanometer abrasive brush of claim 1, wherein, The main body materials of the handle (1), the steel wire brush (2), the pressing piece (3) and the fixing piece (4) are all high-temperature-resistant alloy materials, and a nanoscale ceramic heat-resistant coating is coated on the surface of each component.

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