High-wear-resistance mechanical sealing element

Abstract

The utility model relates to the technical field of sealing elements, in particular to a high-wear-resistance mechanical sealing element. The device comprises a liquid outlet pipe fitting, a plurality of threaded inner teeth are arranged on the inner wall of the liquid outlet pipe fitting, a sealing insertion ring is fixedly arranged on one side of the inner wall of the liquid outlet pipe fitting, an inner rubber ring is movably arranged on the edge of one end of the liquid outlet pipe fitting, and the interiors of the threaded inner teeth are in threaded connection with a sealing mechanism. And a lead-out pipe fitting is fixedly arranged at one end of the sealing mechanism. According to the high-wear-resistance mechanical sealing element, through the arrangement of the tungsten carbide wear-resistant layers, the chromium-plated layers and the protection assembly, when the threaded outer teeth and the threaded inner teeth are connected, due to the fact that the tungsten carbide wear-resistant layers and the chromium-plated layers are arranged on the surfaces of the threaded inner teeth and the threaded outer teeth, the threaded inner teeth and the threaded outer teeth do not make direct contact, and the tungsten carbide wear-resistant layers and the chromium-plated layers are arranged; the wear resistance of the inner thread teeth and the outer thread teeth is improved, deformation and wear are not prone to occurring, and the sealing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of seals, and more specifically, to a highly wear-resistant mechanical seal. Background Art

[0002] A seal is a material or part that prevents the leakage of fluids or solid particles from adjacent mating surfaces. It is a key component of various pumps, reaction synthesis kettles and other equipment, and is used in various equipment for circulating fluids.

[0003] The connection of traditional mechanical seals is generally carried out by means of threads. However, during multiple disassembly and assembly processes, the threads are prone to wear, and there are gaps at the connection points, resulting in leakage, which affects the service life of the seals and the sealing effect is not ideal enough. Therefore, a highly wear-resistant mechanical seal is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a highly wear-resistant mechanical seal to solve the problems that the threads are prone to wear during multiple disassembly and assembly processes, and there are gaps at the connection points, resulting in leakage.

[0005] To achieve the above object, a highly wear-resistant mechanical seal is provided, which includes a liquid outlet pipe fitting. A plurality of internal threads are provided on the inner wall of the liquid outlet pipe fitting. A sealing insertion ring is fixedly arranged on one side of the inner wall of the liquid outlet pipe fitting. An inner rubber ring is movably arranged at the edge of one end of the liquid outlet pipe fitting. A sealing mechanism is threadedly connected inside the internal threads. One end of the sealing mechanism is fixedly provided with an outlet pipe fitting. A closing mechanism is fixedly arranged at one end of the outlet pipe fitting. An outer rubber ring is sleeved on the surface of the closing mechanism. Protective components are coated on the surfaces of the inner rubber ring and the outer rubber ring. Tungsten carbide wear-resistant layers are provided on the surfaces of the internal threads and the sealing mechanism. A chromium plating layer is provided on the surface of the tungsten carbide wear-resistant layer.

[0006] As a further improvement of the technical solution, the sealing mechanism includes an external thread threadedly connected inside the internal thread. One end of the external thread is fixedly provided with an insertion ring, and the external thread is used to connect the internal thread.

[0007] As a further improvement of the technical solution, the surface of the sealing insertion ring is provided with an insertion groove, and the insertion groove is adapted to the insertion ring, and the insertion groove facilitates the docking and insertion of the insertion ring.

[0008] As a further improvement of the technical solution, the closing mechanism includes a connection ring fixedly arranged at one end of the outlet pipe fitting. One side of the connection ring is fixedly provided with a threaded pipe, and the connection ring is used to fix the threaded pipe.

[0009] As a further improvement of the technical solution, a threaded connection groove is provided on the inner wall of the liquid outlet pipe fitting. The threaded connection groove is adapted to the threaded pipe and is used to connect the threaded pipe.

[0010] As a further improvement of the technical solution, the protection component includes a polyurethane coating applied to the surfaces of the inner rubber ring and the outer rubber ring. A ceramic particle coating is applied to the surface of the polyurethane coating. The polyurethane coating and the ceramic particle coating are used to improve the wear resistance and corrosion resistance of the inner rubber ring and the outer rubber ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In this highly wear-resistant mechanical seal, through the settings of the tungsten carbide wear-resistant layer, the chromium plating layer and the protection component, when the external thread of the thread and the internal thread of the thread are connected, since the tungsten carbide wear-resistant layer and the chromium plating layer are provided on the surfaces of the internal thread of the thread and the external thread of the thread, the internal thread of the thread and the external thread of the thread do not directly contact. Moreover, the tungsten carbide wear-resistant layer and the chromium plating layer are provided, which improves the wear resistance of the internal thread of the thread and the external thread of the thread, is not easily deformed and worn, and ensures the sealing effect.

[0013] 2. In this highly wear-resistant mechanical seal, through the settings of the sealing mechanism and the closing mechanism, when the liquid outlet pipe fitting is connected to the lead-out pipe fitting, the external thread of the thread is connected to the internal thread of the thread. After the connection is in place, the insertion ring is inserted into the insertion groove on the sealing insertion ring to further stop water. The threaded pipe is connected to the threaded connection groove, and two sets of connections of the inner layer and the outer layer are provided, greatly improving the sealing performance of the mechanical seal. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 is a schematic diagram of the disassembled structure of the whole of the present utility model;

[0016] Figure 3 is a schematic diagram of the internal thread of the thread and the sealing insertion ring of the present utility model;

[0017] Figure 4 is a schematic diagram of the protection component of the present utility model;

[0018] Figure 5 is a schematic diagram of the closing mechanism and the sealing mechanism of the present utility model.

[0019] The meanings of the various reference numerals in the figure are as follows:

[0020] 1. Liquid outlet pipe fitting; 2. Internal thread; 3. Sealing insertion ring; 4. Inner rubber ring; 5. Sealing mechanism; 501. External thread; 502. Insertion ring; 6. Lead-out pipe fitting; 7. Sealing mechanism; 701. Connecting ring; 702. Threaded pipe; 8. Outer rubber ring; 9. Protection component; 901. Polyurethane coating; 902. Ceramic particle coating; 10. Tungsten carbide wear-resistant layer; 11. Chrome plating layer. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0024] Embodiment

[0025] Please refer to Figures 1-5As shown in the figure, the purpose of this embodiment is to provide a highly wear-resistant mechanical seal, which includes a liquid outlet pipe fitting 1. A plurality of internal threaded teeth 2 are provided on the inner wall of the liquid outlet pipe fitting 1. A sealing insertion ring 3 is fixedly arranged on one side of the inner wall of the liquid outlet pipe fitting 1. An inner rubber ring 4 is movably arranged at the edge of one end of the liquid outlet pipe fitting 1. A sealing mechanism 5 is threadedly connected inside the internal threaded teeth 2. One end of the sealing mechanism 5 is fixedly provided with a lead-out pipe fitting 6. One end of the lead-out pipe fitting 6 is fixedly provided with a closing mechanism 7. Through the settings of the sealing mechanism 5 and the closing mechanism 7, when the liquid outlet pipe fitting 1 is connected to the lead-out pipe fitting 6, the external threaded teeth 501 are connected to the internal threaded teeth 2. After the connection is in place, the insertion ring 502 is inserted into the insertion groove on the sealing insertion ring 3 to further stop water. The threaded pipe 702 is connected to the threaded connection groove. The two sets of connections of the inner layer and the outer layer are set, which greatly improves the sealing performance of the mechanical seal;

[0026] An outer rubber ring 8 is sleeved on the surface of the closing mechanism 7. The surfaces of the inner rubber ring 4 and the outer rubber ring 8 are both coated with a protective component 9. Tungsten carbide wear-resistant layers 10 are provided on the surfaces of the internal threaded teeth 2 and the sealing mechanism 5. A chromium plating layer 11 is provided on the surface of the tungsten carbide wear-resistant layer 10. Through the settings of the tungsten carbide wear-resistant layer 10, the chromium plating layer 11 and the protective component 9, when the external threaded teeth 501 and the internal threaded teeth 2 are connected, since the surfaces of the internal threaded teeth 2 and the external threaded teeth 501 are both provided with the tungsten carbide wear-resistant layer 10 and the chromium plating layer 11, the internal threaded teeth 2 and the external threaded teeth 501 do not directly contact, and the tungsten carbide wear-resistant layer 10 and the chromium plating layer 11 are provided, which improves the wear resistance of the internal threaded teeth 2 and the external threaded teeth 501, is not easily deformed and worn, and ensures the sealing effect.

[0027] Please refer to Figure 3 , the sealing mechanism 5 includes external threaded teeth 501 threadedly connected inside the internal threaded teeth 2, and an insertion ring 502 is fixedly arranged at one end of the external threaded teeth 501.

[0028] Through the setting of the sealing mechanism 5, it plays a role in improving the sealing performance.

[0029] Please refer to Figure 4 , the surface of the sealing insertion ring 3 is provided with an insertion groove, and the insertion groove is adapted to the insertion ring 502.

[0030] Through the setting of the insertion groove, it plays a role in facilitating the insertion of the insertion ring 502.

[0031] Please refer to Figure 3 , the closing mechanism 7 includes a connection ring 701 fixedly arranged at one end of the lead-out pipe fitting 6, and a threaded pipe 702 is fixedly arranged on one side of the connection ring 701.

[0032] Through the setting of the closing mechanism 7, it plays a role in further enhancing the sealing performance.

[0033] Please refer toFigure 4 , a threaded connection groove is provided on the inner wall of the liquid outlet pipe fitting 1, and the threaded connection groove is adapted to the threaded pipe 702.

[0034] Through the setting of the threaded connection groove, it plays a role in connecting the threaded pipe 702.

[0035] Please refer to Figure 5 , the protection component 9 includes a polyurethane coating 901 coated on the surfaces of the inner rubber ring 4 and the outer rubber ring 8, and a ceramic particle coating 902 is coated on the surface of the polyurethane coating 901.

[0036] Through the setting of the polyurethane coating 901 and the ceramic particle coating 902, it plays a role in improving the wear and corrosion resistance of the inner rubber ring 4 and the outer rubber ring 8.

[0037] Working steps: When the liquid outlet pipe fitting 1 is connected to the lead-out pipe fitting 6, the external thread 501 is connected to the internal thread 2. After the connection is in place, the insertion ring 502 is inserted into the insertion groove on the sealing insertion ring 3 to further stop water. The threaded pipe 702 is connected to the threaded connection groove. The two sets of connections of the inner layer and the outer layer are set, which improves the sealing performance of the mechanical seal;

[0038] When the external thread 501 and the internal thread 2 are connected, since tungsten carbide wear-resistant layers 10 and chromium plating layers 11 are provided on the surfaces of the internal thread 2 and the external thread 501, the internal thread 2 and the external thread 501 do not directly contact, and the tungsten carbide wear-resistant layers 10 and chromium plating layers 11 are provided, which improves the wear resistance of the internal thread 2 and the external thread 501 and is not easily deformed and worn.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant mechanical seal, characterized in that: It includes a liquid outlet pipe fitting (1). A number of internal thread teeth (2) are provided on the inner wall of the liquid outlet pipe fitting (1). A sealing insertion ring (3) is fixedly arranged on one side of the inner wall of the liquid outlet pipe fitting (1). An inner rubber ring (4) is movably arranged at the edge of one end of the liquid outlet pipe fitting (1). A sealing mechanism (5) is threadedly connected inside the internal thread teeth (2). One end of the sealing mechanism (5) is fixedly provided with a lead-out pipe fitting (6). One end of the lead-out pipe fitting (6) is fixedly provided with a closing mechanism (7). An outer rubber ring (8) is sleeved on the surface of the closing mechanism (7). A protective component (9) is coated on the surfaces of the inner rubber ring (4) and the outer rubber ring (8). Tungsten carbide wear-resistant layers (10) are provided on the surfaces of the internal thread teeth (2) and the sealing mechanism (5). A chromium plating layer (11) is provided on the surface of the tungsten carbide wear-resistant layer (10).

2. The highly wear-resistant mechanical seal according to claim 1, characterized in that: The sealing mechanism (5) includes an external thread tooth (501) threadedly connected inside the internal thread tooth (2). One end of the external thread tooth (501) is fixedly provided with an insertion ring (502).

3. The highly wear-resistant mechanical seal according to claim 2, wherein: Insertion grooves are formed on the surface of the sealing insertion ring (3). The insertion grooves are adapted to the insertion ring (502).

4. The highly wear-resistant mechanical seal according to claim 1, characterized in that: The closing mechanism (7) includes a connection ring (701) fixedly arranged at one end of the lead-out pipe fitting (6). A threaded pipe (702) is fixedly arranged on one side of the connection ring (701).

5. The highly wear-resistant mechanical seal according to claim 4, characterized in that: Threaded connection grooves are formed on the inner wall of the liquid outlet pipe fitting (1). The threaded connection grooves are adapted to the threaded pipe (702).

6. The highly wear-resistant mechanical seal according to claim 1, wherein: The protective component (9) includes a polyurethane coating (901) coated on the surfaces of the inner rubber ring (4) and the outer rubber ring (8). A ceramic particle coating (902) is coated on the surface of the polyurethane coating (901).

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