A wear-resistant tap subassembly
By using a limiting mechanism and a multi-layer protective coating, the problem of friction and wear caused by loosening of the tap assembly during operation is solved, thus improving wear resistance and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANYANG HEGONG TOOLS CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-04
AI Technical Summary
Existing tap assemblies are prone to loosening during operation, leading to friction and wear, which affects wear resistance and durability.
The design employs a limiting mechanism, using a sliding connection between the tap head and the tap sleeve via a locking block and guide groove. Multiple protective coatings are applied to the surface of the tap head, including a carbon fiber composite coating, a polysiloxane resin coating, a nano zinc oxide coating, and a polyurethane waterproof coating.
It effectively reduces friction and wear between the tap and the tap sleeve, improves wear resistance and durability, enhances waterproofing, and improves performance.
Smart Images

Figure CN224587136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical parts technology, specifically a wear-resistant tap assembly. Background Technology
[0002] Tap assemblies are important mechanical parts commonly used for machining internal threads or tapping operations. They are typically used in conjunction with machine tools, tapping machines, or industrial automation equipment. Currently, tap assemblies usually consist of a tap and a tap sleeve. When the tap is installed in the tap sleeve and is in operation, if the tap and tap sleeve become loose during operation, friction will occur between them, reducing the tap's wear resistance. Simultaneously, the friction between the tap and the workpiece during operation leads to a decrease in the overall wear resistance of the tap, and overheating between the tap and the workpiece also reduces its wear resistance, thus affecting the durability of the tap assembly and indirectly reducing its performance.
[0003] Therefore, it is necessary to develop a wear-resistant tap assembly. Utility Model Content
[0004] The purpose of this invention is to provide a wear-resistant tap assembly to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant tap assembly, including a tap head, with locking blocks provided on the upper sides of both outer walls of the tap head, and a tap sleeve installed on the top of the tap head;
[0006] A positioning head is provided at the center of the inner top of the tap sleeve, and a protective coating is provided on the outer wall surface of the tap head.
[0007] Preferably, the top surface of the tap has grooves on both sides, and the top surface of the tap has a positioning groove at the center.
[0008] Preferably, a threaded hole A is provided at the center of the bottom of the positioning groove.
[0009] Preferably, the inner wall of the tap sleeve is slidably connected to the outer wall of the tap head, and guide grooves are provided on both sides of the lower surface of the outer wall of the tap sleeve.
[0010] Preferably, the inner wall of the guide groove is slidably connected to the outer wall of the card block, and a T-shaped hole is provided at the center of the upper surface of the sub-sleeve.
[0011] Preferably, a fastening bolt is provided inside the T-shaped hole, and the outer wall of the fastening bolt is threadedly connected to the inner wall of the T-shaped hole.
[0012] Preferably, the outer surface of the positioning head is provided with positioning blocks on both sides, and a threaded hole B is provided at the center of the interior of the positioning head.
[0013] Preferably, the protective coating includes a carbon fiber composite coating, wherein the carbon fiber composite coating is provided with a polysiloxane resin coating, a nano zinc oxide coating and a polyurethane waterproof coating in sequence from the outside to the inside.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] By setting the positioning head at the center of the tap sleeve and sliding the tap head inside the tap sleeve, the tap head is connected to the guide groove on the tap sleeve by the locking block on the tap head. The locking groove engages with the positioning block on the outer wall of the positioning head, and the fastening bolts are installed in the threaded holes A and B respectively. This achieves the splicing and fixing of the tap head and the tap sleeve, forming a tap assembly. Both the tap head and the tap sleeve are limited to minimize friction during operation, thus avoiding wear caused by friction. A multi-layer protective coating is applied to the surface of the tap head, increasing its surface strength and abrasion resistance, preventing water damage from friction and minimizing the impact of water stains or contaminants in the daily environment. This effectively improves the wear resistance, durability, and performance of the tap assembly. Attached Figure Description
[0016] Figure 1 A front sectional view provided for this utility model;
[0017] Figure 2 A bottom view of the tap joint provided by this utility model;
[0018] Figure 3 This is an enlarged schematic diagram of a partial structure of the protective coating provided by this utility model;
[0019] Figure 4 This is a three-dimensional schematic diagram of the tap head structure provided by this utility model.
[0020] In the diagram: 1. Tap; 101. Locking block; 102. Locking groove; 103. Positioning groove; 104. Threaded hole A; 2. Tap sleeve; 201. Guide groove; 202. T-hole; 203. Fastening bolt; 3. Positioning head; 301. Positioning block; 302. Threaded hole B; 4. Protective coating; 401. Carbon fiber composite coating; 402. Polysiloxane resin coating; 403. Nano zinc oxide coating; 404. Polyurethane waterproof coating. 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] This utility model provides the following technical solution: a wear-resistant tap assembly, please refer to... Figures 1-4 The device includes a tap 1, with locking blocks 101 on the upper sides of both outer walls. The top surface of the tap 1 has locking grooves 102 on both sides, and a positioning groove 103 at the center of the top surface. A threaded hole A104 is located at the center of the bottom end of the positioning groove 103. A tap sleeve 2 is installed at the top of the tap 1, with its inner wall slidably connected to the outer wall of the tap 1. Guide grooves 201 are located on both sides of the lower surface of the outer wall of the tap sleeve 2, with their inner walls slidably connected to the outer walls of the locking blocks 101. A T-hole 202 is located at the center of the upper surface of the tap sleeve 2, with a fastening bolt 203 inside. The outer wall of the fastening bolt 203 is threadedly connected to the inner wall of the T-hole 202. A positioning head 3 is located at the center of the top end inside the tap sleeve 2. The outer surface of the tapping sleeve 2 is provided with positioning blocks 301. The center of the inner part of the positioning head 3 is provided with a threaded hole B302. The positioning head 3 is set at the center of the inner part of the tapping sleeve 2, and the tap 1 is slidably connected to the inside of the tapping sleeve 2. The locking block 101 on the tap 1 is engaged into the guide groove 201 on the tapping sleeve 2, and the locking groove 102 is engaged into the positioning block 301 on the outer wall of the positioning head 3. The fastening bolt 203 is installed in the threaded hole A104 and the threaded hole B302 in a threaded connection manner. This achieves the effect of splicing and fixing the tap 1 and the tapping sleeve 2 to form a tapping assembly. The tap 1 and the tapping sleeve 2 are both limited to ensure that friction is reduced between them during operation and to avoid wear caused by friction between the tap 1 and the tapping sleeve 2.
[0023] The outer wall surface of the tap 1 is provided with a protective coating 4, which includes a carbon fiber composite coating 401. From the outside to the inside, the carbon fiber composite coating 401 consists of a polysiloxane resin coating 402, a nano zinc oxide coating 403, and a polyurethane waterproof coating 404. By employing a multi-layered protective coating 4 and sequentially spraying it onto the surface of the tap 1, the carbon fiber composite coating 401, with its high temperature resistance, abrasion resistance, and corrosion resistance, prevents the surface from being easily damaged by high temperatures, abrasion, and corrosion. The polysiloxane resin coating 402, with its excellent high hardness, enhances the surface hardness. The nano... Zinc oxide coating 403 has antibacterial, bacteriostatic, deodorizing, mildew-proof, and anti-oxidative properties. It can be used to treat the surface with antibacterial and bacteriostatic properties. Polyurethane waterproof coating 404 has the characteristics of high strength, large elongation, and good water resistance. It can be used to further waterproof and water-resistant treat the surface on the original basis, greatly increasing its water resistance and waterproof effect. By taking enhanced protective treatment on the surface of tap 1, on the one hand, it increases the surface strength and friction resistance, and tries to avoid the surface being directly affected by friction, thus avoiding the impact of water stains or pollutants in the daily environment on its surface.
[0024] Working Principle: When using this utility model, the positioning head 3 is set at the center of the tap sleeve 2, and the tap 1 is slidably connected to the inside of the tap sleeve 2. The locking block 101 on the tap 1 engages with the guide groove 201 on the tap sleeve 2, and the locking groove 102 engages with the positioning block 301 on the outer wall of the positioning head 3. This allows the fastening bolt 203 to be threaded into the threaded holes A104 and B302, thus achieving the splicing and fixing of the tap 1 and the tap sleeve 2 to form a tap assembly. Both the tap 1 and the tap sleeve 2 are limited to minimize friction during operation, preventing wear caused by friction. Simultaneously, the protective coating 4 is a multi-layered protective coating, sequentially sprayed onto the surface of the tap 1. The carbon fiber composite coating 401, with its high temperature resistance, wear resistance, and corrosion resistance, prevents the surface from being easily damaged by high temperatures and wear. To prevent damage caused by abrasion and corrosion, the polysiloxane resin coating 402, with its excellent high hardness, enhances the surface hardness. The nano-zinc oxide coating 403, with its antibacterial, deodorizing, mildew-proof, and anti-oxidative properties, provides antibacterial and anti-oxidative treatment. The polyurethane waterproof coating 404, with its high strength, high elongation, and good water resistance, further enhances the surface's waterproof and water-resistant properties, significantly improving its waterproof effect. By strengthening the surface of the tap head 1, the surface strength and abrasion resistance are increased, minimizing the impact of friction on its waterproof and wear-resistant capabilities. This also minimizes the impact of water stains or pollutants in the daily environment, effectively achieving wear resistance for the tap assembly and improving its durability and performance.
[0025] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A wear-resistant tap assembly, comprising a tap head (1), wherein a locking block (101) is provided on the upper part of both outer walls of the tap head (1), characterized in that: The top of the tap (1) is fitted with a tap sleeve (2); The tap sleeve (2) has a positioning head (3) at the center of its inner top end, and the tap head (1) has a protective coating (4) on its outer wall surface.
2. The wear-resistant tap assembly according to claim 1, characterized in that: The top surface of the tap (1) is provided with slots (102) on both sides, and a positioning slot (103) is provided at the center of the top surface of the tap (1).
3. A wear-resistant tap assembly according to claim 2, wherein: A threaded hole A (104) is provided at the center of the bottom of the positioning groove (103).
4. The wear-resistant tap assembly of claim 1, wherein: The inner wall of the tap sleeve (2) is slidably connected to the outer wall of the tap head (1), and guide grooves (201) are provided on both sides of the lower surface of the outer wall of the tap sleeve (2).
5. The wear-resistant tap assembly according to claim 4, characterized in that: The inner wall of the guide groove (201) is slidably connected to the outer wall of the card block (101), and a T-shaped hole (202) is provided at the center of the upper surface of the sub-sleeve (2).
6. A wear-resistant tap assembly according to claim 5, wherein: The T-hole (202) is provided with a fastening bolt (203), and the outer wall of the fastening bolt (203) is threadedly connected to the inner wall of the T-hole (202).
7. The wear-resistant tap assembly of claim 1, wherein: The positioning head (3) has positioning blocks (301) on both sides of its outer surface, and a threaded hole B (302) is provided at the center of the interior of the positioning head (3).
8. The wear-resistant tap assembly according to claim 1, characterized in that: The protective coating (4) includes a carbon fiber composite coating (401), which is provided with a polysiloxane resin coating (402), a nano zinc oxide coating (403) and a polyurethane waterproof coating (404) from the outside to the inside.