Low-leakage mechanical sealing structure

Abstract

The utility model relates to the technical field of mechanical sealing structures, and discloses a low-leakage mechanical sealing structure which comprises a first connecting pipeline, a threaded hole is formed in the surface of the first connecting pipeline, and a waterproof rubber strip is arranged on the surface of the threaded hole. According to the low-leakage mechanical sealing structure, through the arrangement of the sealing mechanism and the waterproof rubber strip, when the low-leakage mechanical sealing structure is used, an inserting pipe is inserted into a second connecting pipeline on one side, so that a sealing ring arranged on the surface of the inserting pipe is inserted into a sealing groove in the second connecting pipeline; the sealing ring can be tightly attached to the supporting face, then the waterproof rubber strip is wound on the threaded hole, the conical sliding barrel is rotated, the conical sliding barrel is fixed to the first connecting pipeline, the waterproof rubber strip is wrapped in the conical sliding barrel, and therefore the effect of improving the sealing performance of the connector is achieved, and the sealing effect is better compared with a traditional mode that a single sealing ring is used for sealing.

Description

Technical Field

[0001] This utility model relates to the field of mechanical seal structure technology, and in particular to a low-leakage mechanical seal structure. Background Technology

[0002] In today's industrial sectors and urban infrastructure construction, pipeline transportation systems play an indispensable role. In the petrochemical industry, various oil products, chemical raw materials, and finished products are transported over long distances via pipelines, forming the "blood vessels" of the entire production process from refineries to storage facilities and production workshops. In the power industry, media such as steam and water circulate through pipelines between boilers, turbines, and other equipment, achieving energy conversion and transfer. In urban utilities, water pipes provide drinking and production water for residents and businesses, while gas pipelines deliver natural gas to households, ensuring people's daily energy needs. With the continuous development of various industries, the scale of pipeline transportation systems is constantly expanding, and their complexity is increasing. Different operating conditions place extremely stringent requirements on the mechanical seals of pipeline connections. Traditional sealing structures are often unable to adapt to these complex and changing environments, making them prone to leakage problems.

[0003] Some existing mechanical seal structures are relatively simple in design and struggle to maintain stable sealing performance under complex operating conditions. For example, some sealing structures rely solely on rubber gaskets or simple clamping devices to achieve a seal. When faced with high pressure, high temperature, or media erosion, the gaskets are prone to aging and deformation, and the clamping devices may loosen, thus failing to effectively prevent media leakage. Therefore, a low-leakage mechanical seal structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a low-leakage mechanical seal structure to solve the problem mentioned in the background art that some existing mechanical seal structures are relatively simple in design and difficult to maintain stable sealing performance under complex working conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-leakage mechanical seal structure, comprising a first connecting pipe, a threaded hole on the surface of the first connecting pipe, a waterproof strip on the surface of the threaded hole, a plug pipe fixedly connected to one side of the first connecting pipe, a sealing mechanism installed on the surface of the plug pipe, a second connecting pipe inserted into the surface of the plug pipe, a support mechanism slidably connected to the surface of the second connecting pipe, the sealing mechanism comprising a sealing ring installed on the surface of the plug pipe, a support spring installed inside the sealing ring; the support mechanism comprising a sliding block slidably connected to the surface of the second connecting pipe, a pressure spring fixedly connected to one side of the sliding block, two extension blocks fixedly connected to one side of the sliding block, and an electric push rod fixedly connected to the back of the extension blocks.

[0006] As a further embodiment of this utility model, a tapered sliding cylinder is attached to one side of the pressure spring. The tapered sliding cylinder has a threaded hole inside, which serves to connect to the first connecting pipe.

[0007] As a further embodiment of this utility model, the conical sliding cylinder is slidably connected to the surface of the second connecting pipe, and the internal thread of the threaded hole is connected to the surface of the waterproof strip. The waterproof strip serves to achieve a waterproof seal.

[0008] As a further embodiment of this utility model, a sealing groove is installed inside the second connecting pipe, and the sealing ring is installed inside the sealing groove. The sealing groove serves to install the sealing ring.

[0009] As a further embodiment of this utility model, a battery is electrically connected to one side of the electric push rod via a power cord. The battery is installed on the surface of the electric push rod, and the battery provides continuous power supply.

[0010] As a further embodiment of this utility model, a positioning block is fixedly connected to the back of the electric push rod. The positioning block is fixedly connected to the surface of the second connecting pipe, and the positioning block serves to support the electric push rod.

[0011] As a further embodiment of this utility model, a connecting block is fixedly connected to the back of the second connecting pipe, and several anti-slip strips are installed on the surface of the first connecting pipe. The anti-slip strips serve to prevent slipping.

[0012] This invention provides a low-leakage mechanical seal structure, which has the following advantages:

[0013] 1. This low-leakage mechanical seal structure, through the setting of the sealing mechanism and waterproof rubber strip, allows for better sealing when the plug is inserted into the second connecting pipe on one side during use. This causes the sealing ring on the surface of the plug to be inserted into the sealing groove inside the second connecting pipe. Because the sealing ring has a support spring inside, it can be tightly pressed against the support surface. Next, the waterproof rubber strip is wrapped around the threaded hole, and the conical sliding cylinder is rotated to fix the conical sliding cylinder in the first connecting pipe and wrap the waterproof rubber strip inside it. This achieves the effect of improving the sealing performance of the interface. Compared with the traditional method of using a single sealing ring for sealing, the sealing effect is better.

[0014] 2. This low-leakage mechanical seal structure, through the setting of the support mechanism, addresses the issue that mechanical vibration can cause the threaded interface in the conical sliding cylinder to loosen after installation, thus affecting the sealing performance of the equipment. Therefore, a pressure spring is attached to one side of the conical sliding cylinder. When the power is turned on, the electric push rod on one side is activated. The electric push rod drives the sliding block to move on the second connecting pipe, causing the pressure spring installed on one side of the sliding block to compress the conical sliding cylinder on that side, thereby achieving the effect of pressurizing and fixing the conical sliding cylinder, preventing the conical sliding cylinder from loosening due to vibration, and improving the stability of the equipment structure connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the support mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the sealing mechanism of this utility model.

[0019] In the diagram: 1. First connecting pipe; 2. Waterproof rubber strip; 3. Insert pipe; 4. Sealing mechanism; 401. Sealing ring; 402. Support spring; 5. Second connecting pipe; 6. Support mechanism; 601. Sliding block; 602. Pressure spring; 603. Extension block; 604. Electric push rod; 7. Conical sliding cylinder; 8. Battery; 9. Positioning block; 10. Connecting block; 11. Anti-slip strip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figures 1 to 4This utility model provides a technical solution: a low-leakage mechanical seal structure, including a first connecting pipe 1, a threaded hole on the surface of the first connecting pipe 1, a waterproof strip 2 on the surface of the threaded hole, a plug pipe 3 fixedly connected to one side of the first connecting pipe 1, and a sealing mechanism 4 installed on the surface of the plug pipe 3. The sealing mechanism 4 and the waterproof strip 2 improve the sealing performance of the interface, resulting in a better sealing effect compared to the traditional method of using a single sealing ring 401. A second connecting pipe 5 is inserted into the surface of the plug pipe 3, and a support mechanism 6 is slidably connected to the surface of the second connecting pipe 5. The support mechanism 6 pressurizes and fixes the conical sliding cylinder 7, preventing loosening of the conical sliding cylinder 7 due to vibration and improving the stability of the equipment structure connection.

[0022] The sealing mechanism 4 includes a sealing ring 401 mounted on the surface of the insertion tube 3, and a support spring 402 is installed inside the sealing ring 401;

[0023] The support mechanism 6 includes a sliding block 601 that is slidably connected to the surface of the second connecting pipe 5. A pressure spring 602 is fixedly connected to one side of the sliding block 601. Two extension blocks 603 are fixedly connected to one side of the sliding block 601. An electric push rod 604 is fixedly connected to the back of the extension block 603.

[0024] A tapered sliding cylinder 7 is attached to one side of the pressure spring 602. The tapered sliding cylinder 7 has a threaded hole inside, which serves to connect to the first connecting pipe 1.

[0025] The tapered sliding cylinder 7 is slidably connected to the surface of the second connecting pipe 5, and the internal thread of the threaded hole is connected to the surface of the waterproof strip 2. The waterproof strip 2 plays a role in waterproof sealing.

[0026] The second connecting pipe 5 has a sealing groove installed inside, and the sealing ring 401 is installed inside the sealing groove. The sealing groove serves to install the sealing ring 401.

[0027] One side of the electric push rod 604 is electrically connected to a battery 8 via a power cord. The battery 8 is installed on the surface of the electric push rod 604 and provides continuous power supply.

[0028] The electric push rod 604 is fixedly connected to the back of a positioning block 9, which is fixedly connected to the surface of the second connecting pipe 5. The positioning block 9 serves to support the electric push rod 604.

[0029] The back of the second connecting pipe 5 is fixedly connected to a connecting block 10, and the surface of the first connecting pipe 1 is equipped with several anti-slip strips 11, which serve to prevent slipping.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When using, insert the connector 3 into the second connecting pipe 5 on one side, so that the sealing ring 401 on the surface of the connector 3 is inserted into the sealing groove inside the second connecting pipe 5. Since the sealing ring 401 is provided with a support spring 402, the sealing ring 401 can be tightly attached to the support surface. Next, wrap the waterproof strip 2 around the threaded hole and rotate the conical sliding cylinder 7 so that the conical sliding cylinder 7 is fixed in the first connecting pipe 1 and the waterproof strip 2 is wrapped inside it.

[0032] The second step: After the conical sliding cylinder 7 is installed, mechanical vibration will cause the threaded interface in the conical sliding cylinder 7 to loosen, which will affect the sealing performance of the equipment. Therefore, a pressure spring 602 is attached to one side of the conical sliding cylinder 7. When the power is turned on, the electric push rod 604 on one side is started. The electric push rod 604 drives the sliding block 601 to move on the second connecting pipe 5, so that the pressure spring 602 installed on one side of the sliding block 601 squeezes the conical sliding cylinder 7 on one side.

[0033] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0034] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0035] 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 low-leakage mechanical seal structure comprising a first connecting pipe (1), characterized in that: The surface of the first connecting pipeline (1) is provided with a threaded hole, the surface of the threaded hole is provided with a waterproof rubber strip (2), one side of the first connecting pipeline (1) is fixedly connected with a plug-in pipe (3), the surface of the plug-in pipe (3) is provided with a sealing mechanism (4), the surface of the plug-in pipe (3) is plugged with a second connecting pipeline (5), the surface of the second connecting pipeline (5) is slidably connected with a supporting mechanism (6), The sealing mechanism (4) comprises a sealing ring (401) mounted on the surface of the plug-in pipe (3), and a supporting spring (402) is mounted in the sealing ring (401); The supporting mechanism (6) comprises a sliding block (601) slidably connected to the surface of the second connecting pipeline (5), a pressurizing spring (602) fixedly connected to one side of the sliding block (601), and two extension blocks (603) fixedly connected to one side of the sliding block (601).

2. A low-leakage mechanical seal structure according to claim 1, characterized by: One side of the pressurizing spring (602) is lapped with a conical sliding cylinder (7), and the inside of the conical sliding cylinder (7) is provided with a threaded hole.

3. A low-leakage mechanical seal structure according to claim 2, characterized by: The conical sliding cylinder (7) is slidably connected to the surface of the second connecting pipeline (5), and the threaded hole is threadedly connected to the surface of the waterproof rubber strip (2).

4. A low-leakage mechanical seal structure according to claim 1, characterized by: The second connecting pipeline (5) is internally provided with a sealing groove, and the sealing ring (401) is mounted in the sealing groove.

5. A low-leakage mechanical seal structure according to claim 1, characterized by: One side of the electric push rod (604) is electrically connected with a storage battery (8) through a power line, and the storage battery (8) is mounted on the surface of the electric push rod (604).

6. A low-leakage mechanical seal structure according to claim 1, characterized by: The back of the electric push rod (604) is fixedly connected with a positioning block (9), and the positioning block (9) is fixedly connected to the surface of the second connecting pipeline (5).

7. A low-leakage mechanical seal structure according to claim 1, characterized by: The back of the second connecting pipeline (5) is fixedly connected with a connecting block (10), and the surface of the first connecting pipeline (1) is provided with a plurality of anti-skid strips (11).

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