A convenient plug
By designing an easy-to-use plug and utilizing a combination of adjusting rod and threaded rod, rapid sealing and reinforcement are achieved, solving the problem of complex operation of existing plugs and improving the convenience of connection and sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FUKE HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
Existing plugs require the selection of appropriate plugs and sealing rings for different pipe specifications when connected by threads. Furthermore, the connection process requires either heat treatment or direct threading, which makes the operation cumbersome, time-consuming, and inconvenient.
A convenient plug design includes a fixed base, an adjusting rod, a sealing plate, a rubber sealing sleeve, and a reinforcing mechanism. The adjusting rod drives the sealing plate and rubber sealing sleeve to expand and seal, directly engaging with the inside of the connecting pipe. The threaded rod pushes the reinforcing plate to fit against the outer wall of the pipe, achieving rapid sealing and reinforcement.
It enables quick adjustment and disassembly, is suitable for connecting pipes of different diameters, improves ease of use and sealing effect, simplifies the assembly process, and enhances the stability of the connection.
Smart Images

Figure CN224592933U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe plugs, and in particular to a plug that is easy to operate. Background Technology
[0002] Natural gas pipelines are pipelines that transport natural gas from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also known as gas transmission pipelines. Before being put into use, natural gas pipelines need to undergo pressure testing to check their pressure resistance under high gas pressure. If dew point occurs, repairs should be made in time to avoid production accidents after they are put into use. During pressure testing, the pipeline ports need to be sealed.
[0003] Currently, most plugs use threaded connection technology, which involves threading a plug into the connecting pipe and then using it for connection and fixation. While this connection method improves the stability of the connection, it requires selecting the appropriate plug and sealing ring according to the different specifications of the connecting pipe during the threaded connection process. Moreover, the connection requires either heat treatment or direct threading, making the operation cumbersome, time-consuming, and inconvenient to use. Utility Model Content
[0004] To overcome the problems of existing plugs, which require selecting the appropriate plug and sealing ring for different pipe specifications during threaded connection, and which require heat treatment or direct threading for connection, resulting in cumbersome and time-consuming operation and poor ease of use.
[0005] The technical solution of this utility model is as follows: a plug that is easy to operate, including a fixed base, an adjusting rod connected to the inner side of the fixed base, a sealing plate connected to one end of the adjusting rod, a rubber sealing sleeve connected to the outer side of the sealing plate, a guide sleeve connected to the left end of the inner side of the fixed base, and a reinforcing mechanism connected to the inner side of the fixed base.
[0006] The reinforcement mechanism includes a reinforcement plate, a threaded rod movably connected to the outside of the reinforcement plate, a receiving plate movably connected to the inside of the reinforcement plate, and a limiting rod fixedly connected to the outside of the receiving plate.
[0007] A baffle is fixedly installed on the left end of the adjusting rod, and a movable rod is fixedly installed between the baffles. A drive rod is movably connected to the outside of the movable rod.
[0008] A second baffle is fixedly installed on the left end of the inner side of the sealing plate, a second movable rod is fixedly installed between the second baffles, and a drive rod is movably connected to the outer side of the second movable rod. A stabilizing rod is fixedly installed on the right end of the inner side of the sealing plate.
[0009] Preferably, the first baffle and the second baffle are arranged in pairs, with a total of six sets. The drive rod is movably installed between the first movable rod and the second movable rod, and the outer side of the adjusting rod is provided with external threads.
[0010] Preferably, two reinforcing plates and two receiving plates are provided, and each end of the reinforcing plate has a movable cavity, on the inner side of the movable cavity, the receiving plate is movably installed.
[0011] Preferably, the top and bottom sides of the fixed base are provided with movable holes, and a limit rod is movably installed inside the movable holes. The front and rear sides of the fixed base are provided with threaded holes No. 1, and a threaded rod is threadedly connected to the inside of the threaded holes No. 1. The right side of the fixed base is provided with threaded holes No. 2, and an adjusting rod is threadedly connected to the inside of the threaded holes No. 2.
[0012] Preferably, the rubber sealing sleeve has a semi-circular structure, and an installation groove is provided on the outer side of the rubber sealing sleeve, and a sealing ring is fixedly installed on the inner side of the installation groove.
[0013] Preferably, a U-shaped seat is fixedly installed on the outer side of the guide sleeve, a support rod is fixedly installed on the inner side of the U-shaped seat, and a stabilizing rod is movably connected to the outer side of the support rod. A total of six sets of U-shaped seats and support rods are provided.
[0014] The beneficial effects of this utility model are:
[0015] 1. When adjusting and sealing, this utility model allows the adjustment rod to be rotated, which facilitates the pulling of the drive rod and the sealing plate to move inward. This causes the right end of the sealing plate to expand outward, which in turn drives the rubber sealing sleeve and the outer sealing ring to expand and fit against the inner wall of the connecting pipe, thus forming a seal and completing the sealing. Conversely, the left end of the sealing plate can be moved outward for easy disassembly. The adjustment is convenient and quick, and it is suitable for connecting pipes of different diameters, improving ease of use and sealing effect.
[0016] 2. When using this utility model, the fixing seat is directly engaged with the connecting pipe. At this time, the sealing plate and the rubber sealing sleeve are engaged on the inner side of the connecting pipe, which makes it convenient to directly adjust the diameter of the rubber sealing sleeve for sealing later. There is no need for complicated assembly and selection. Then, by rotating the two sets of threaded rods, the two reinforcing plates are pushed to fit against the outer wall of the connecting pipe, thereby connecting and reinforcing. The connection is convenient and quick, improving the ease of use. Attached Figure Description
[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the plug of this utility model;
[0018] Figure 2 The diagram shown is a left-side view of the plug of this utility model.
[0019] Figure 3 The diagram shown is a three-dimensional structural diagram of the connection between the plug and the pipe of this utility model;
[0020] Figure 4 The diagram shown is a front cross-sectional view of the present invention.
[0021] Figure 5 The diagram shown is a three-dimensional structural diagram of the connection between the adjusting rod and the sealing plate of this utility model.
[0022] Figure 6 The diagram shown is a three-dimensional structural representation of the connection between the rubber sealing sleeve and the sealing plate of this utility model.
[0023] Figure 7 The diagram shown is a three-dimensional structural schematic of the reinforcement mechanism of this utility model.
[0024] Explanation of reference numerals in the attached drawings: 1. Fixed seat; 2. Adjusting rod; 3. Sealing plate; 4. Rubber sealing sleeve; 5. Guide sleeve; 6. Reinforcing mechanism; 601. Reinforcing plate; 6011. Threaded rod; 6012. Movable cavity; 602. Receiving plate; 6021. Limiting rod; 201. First baffle; 202. First movable rod; 203. Drive rod; 301. Second baffle; 302. Second movable rod; 303. Stabilizing rod; 101. Second threaded hole; 102. Movable hole; 103. First threaded hole; 401. Mounting groove; 402. Sealing ring; 501. U-shaped seat; 502. Support rod. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] A convenient-to-use plug, based on Figures 1-7 As shown, it includes a fixed base 1, an adjusting rod 2 connected to the inner side of the fixed base 1, a sealing plate 3 connected to one end of the adjusting rod 2, a rubber sealing sleeve 4 connected to the outer side of the sealing plate 3, a guide sleeve 5 connected to the left end of the inner side of the fixed base 1, and a reinforcing mechanism 6 connected to the inner side of the fixed base 1.
[0027] The reinforcement mechanism 6 includes a reinforcement plate 601, a threaded rod 6011 movably connected to the outside of the reinforcement plate 601, a receiving plate 602 movably connected to the inside of the reinforcement plate 601, and a limiting rod 6021 fixedly connected to the outside of the receiving plate 602.
[0028] A first baffle 201 is fixedly installed on the left end of the adjusting rod 2, and a first movable rod 202 is fixedly installed between the first baffles 201. A drive rod 203 is movably connected to the outside of the first movable rod 202.
[0029] A second baffle 301 is fixedly installed on the left end of the inner side of the sealing plate 3. A second movable rod 302 is fixedly installed between the second baffles 301. A drive rod 203 is movably connected to the outer side of the second movable rod 302. A stabilizing rod 303 is fixedly installed on the right end of the inner side of the sealing plate 3.
[0030] according to Figures 4-5 As shown, baffle 201 and baffle 301 are arranged in pairs, with a total of six sets. The drive rod 203 is movably installed between the first movable rod 202 and the second movable rod 302. The outer side of the adjusting rod 2 is provided with external threads.
[0031] It should be noted that during use, the fixing seat 1 is directly engaged with the connecting pipe. At this time, the sealing plate 3 and the rubber sealing sleeve 4 are engaged on the inside of the connecting pipe, which makes it convenient to directly adjust the diameter of the rubber sealing sleeve 4 for sealing later without the need for complicated assembly and selection. Then, by rotating the two sets of threaded rods 6011, the two reinforcing plates 601 are pushed to fit against the outer wall of the connecting pipe, thereby connecting and reinforcing. The connection is convenient and quick, improving the ease of use.
[0032] according to Figures 2-7 As shown, there are two reinforcing plates 601 and two receiving plates 602 respectively, and the two ends of the reinforcing plate 601 are respectively provided with movable cavities 6012, and the receiving plate 602 is movably installed inside the movable cavity 6012.
[0033] according to Figures 1-4 As shown, the top and bottom sides of the fixed base 1 are respectively provided with movable holes 102. A limit rod 6021 is movably installed inside the movable hole 102. The front and rear sides of the fixed base 1 are respectively provided with threaded holes 103. A threaded rod 6011 is threadedly connected to the inside of the threaded hole 103. A second threaded hole 101 is provided on the right side of the fixed base 1. An adjusting rod 2 is threadedly connected to the inside of the threaded hole 101.
[0034] It should be noted that the two sets of receiving plates 602 help improve the stability of the two sets of reinforcing plates 601 before and after installation during the reinforcement process. When adjusting and sealing, rotating the adjusting rod 2 makes it easy to pull the driving rod 203 and the sealing plate 3 to move inward, so that the right end of the sealing plate 3 expands outward, which in turn drives the rubber sealing sleeve 4 and the outer sealing ring 402 to expand and fit against the inner wall of the connecting pipe, thereby forming a seal and completing the sealing. Conversely, the left end of the sealing plate 3 can be moved outward for easy disassembly. The adjustment is convenient and quick, and it is suitable for connecting pipes of different diameters, improving the ease of use and sealing effect.
[0035] according to Figures 4-6As shown, the rubber sealing sleeve 4 has a semi-circular structure. An installation groove 401 is provided on the outer side of the rubber sealing sleeve 4, and a sealing ring 402 is fixedly installed on the inner side of the installation groove 401.
[0036] according to Figures 4-5 As shown, a U-shaped seat 501 is fixedly installed on the outer side of the guide sleeve 5, a support rod 502 is fixedly installed on the inner side of the U-shaped seat 501, and a stabilizing rod 303 is movably connected to the outer side of the support rod 502. A total of six sets of U-shaped seats 501 and support rods 502 are provided.
[0037] It should be noted that, under the action of the rubber sealing sleeve 4 and the sealing ring 402, it is convenient to perform sealing operations on connecting pipes of different diameters by adjusting the diameter of the rubber sealing sleeve 4 and the sealing ring 402. Moreover, under the action of the guide sleeve 5, it is beneficial to improve the stability of the adjusting rod 2 when moving. Furthermore, under the action of the U-shaped seat 501 and the support rod 502, it is beneficial to facilitate the rotation and limiting of the stabilizing rod 303 and the sealing plate 3, thereby improving the overall stability during the adjustment process.
[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A plug for easy operation, characterized in that: It includes a fixed base (1), an adjusting rod (2) connected to the inside of the fixed base (1), a sealing plate (3) connected to one end of the adjusting rod (2), a rubber sealing sleeve (4) connected to the outside of the sealing plate (3), a guide sleeve (5) connected to the left end of the inside of the fixed base (1), and a reinforcing mechanism (6) connected to the inside of the fixed base (1). The reinforcement mechanism (6) includes a reinforcement plate (601), a threaded rod (6011) movably connected to the outside of the reinforcement plate (601), a receiving plate (602) movably connected to the inside of the reinforcement plate (601), and a limiting rod (6021) fixedly connected to the outside of the receiving plate (602). A first baffle (201) is fixedly installed on the left end of the adjusting rod (2), and a first movable rod (202) is fixedly installed between the first baffles (201). A drive rod (203) is movably connected to the outside of the first movable rod (202). A second baffle (301) is fixedly installed on the left end of the inner side of the sealing plate (3), a second movable rod (302) is fixedly installed between the second baffles (301), and a drive rod (203) is movably connected to the outer side of the second movable rod (302), and a stabilizing rod (303) is fixedly installed on the right end of the inner side of the sealing plate (3).
2. A plug according to claim 1, wherein: The first baffle (201) and the second baffle (301) are arranged in pairs, with a total of six sets. The drive rod (203) is movably installed between the first movable rod (202) and the second movable rod (302). The outer side of the adjusting rod (2) is provided with external threads.
3. A plug according to claim 1, wherein: Two reinforcing plates (601) and two receiving plates (602) are provided respectively, and two movable cavities (6012) are respectively opened at both ends of the reinforcing plate (601), and the receiving plate (602) is movably installed inside the movable cavity (6012).
4. A plug according to claim 1, wherein: The top and bottom sides of the fixed base (1) are respectively provided with movable holes (102). A limit rod (6021) is movably installed inside the movable hole (102). The front and rear sides of the fixed base (1) are respectively provided with threaded holes (103). A threaded rod (6011) is connected to the inside of the threaded hole (103) by thread. A second threaded hole (101) is provided on the right side of the fixed base (1). An adjusting rod (2) is connected to the inside of the threaded hole (101) by thread.
5. A plug according to claim 1, wherein: The rubber sealing sleeve (4) has a semi-circular structure. An installation groove (401) is provided on the outer side of the rubber sealing sleeve (4), and a sealing ring (402) is fixedly installed on the inner side of the installation groove (401).
6. A plug according to claim 1, wherein: A U-shaped seat (501) is fixedly installed on the outer side of the guide sleeve (5), and a support rod (502) is fixedly installed on the inner side of the U-shaped seat (501). A stabilizing rod (303) is movably connected to the outer side of the support rod (502). A total of six sets of U-shaped seats (501) and support rods (502) are provided.