A gas detector injection molded part sealing connection assembly

Abstract

This utility model relates to the field of sealing component technology and discloses a sealing connection component for a gas detector injection molded part, including two round tubes. One round tube has a convex tube on its outer surface, and the other round tube has a boss B on its outer surface. A slot is formed inside the boss B. The inner wall of the slot and the outer surface of the convex tube both have a first groove and a second groove. A first sealing ring and a second sealing ring are fitted onto the inner walls of one of the first grooves and the other of the second groove. This utility model can effectively prevent the pipeline transported material from leaking from the connection point by the tight fit between the sealing ring and the groove, which greatly improves the internal sealing of the pipeline and ensures that there will be no leakage. The cooperation between the convex tube and the slot makes the connection process simpler. During installation, the convex tube only needs to be aligned and inserted into the slot to achieve initial positioning. Compared with the traditional complex pipeline connection method, no professional tools and complicated operations are required, which reduces the installation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of sealing component technology, specifically a sealing connection component for injection molded gas detector parts. Background Technology

[0002] In scenarios involving liquid transmission or storage, such as water pipes, water tanks, and chemical liquid pipelines, it can effectively prevent liquid from seeping or leaking from the connection points. For example, the plastic sealing connection components used at the connection points of household tap water pipes can ensure smooth water flow and prevent leaks, ensuring the normal supply of household water. In places where gas needs to be sealed, such as gas pipelines, pressure vessels, and automobile engine intake systems, it can prevent gas from escaping or external gas from entering. For example, in automobile air conditioning systems, plastic sealing connection components can ensure that refrigerant does not leak and maintain the cooling effect of the air conditioner.

[0003] Existing pipe connections are complex, consuming significant manpower and resources, and have limitations. While traditional welding methods provide strong connections, they require professional operation. Before welding, pipe joints need to be pre-treated with grinding and cleaning. During welding, parameters such as temperature and time must be precisely controlled. Slight carelessness can lead to problems such as incomplete welds or burn-through. The process is cumbersome, and disassembling the connection during maintenance and replacement is difficult and may damage the pipes, further increasing construction and maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing connection assembly for injection molded gas detectors, so as to solve the problem of high operational difficulty when disassembling or installing the connection parts of the sealing assembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing connection assembly for a gas detector injection molded part, comprising two round tubes, one of which has a convex tube on its outer surface, and the other round tube has a boss B on its outer surface. The boss B has a slot inside, and the inner wall of the slot and the outer surface of the convex tube both have a first groove and a second groove. The inner walls of the first groove and the second groove are fitted with a first sealing ring and a second sealing ring.

[0006] Preferably, one of the circular tubes has a boss A on its outer surface, and the boss A and the boss B have the same radius.

[0007] Preferably, threaded holes are provided on the right side of both boss A and boss B, and the outer surfaces of boss A and boss B can be tightly fitted together by bolts.

[0008] Preferably, each of the circular tubes has a pipe thread on its outer surface, and each of the pipe threads has two locking tubes on its outer surface.

[0009] Preferably, each of the locking tubes has a trapezoidal hole inside, and the inner wall of each trapezoidal hole has an internal thread, the outer surface of the internal thread being threadedly connected to the outer surface of the pipe thread.

[0010] Preferably, a rubber pad is installed on the outer surface of each of the circular tubes, and the rubber pad is a material with strong wear resistance and plasticity.

[0011] Preferably, a sealing gasket is connected to the left side of the convex tube, and the sealing gasket fits tightly against the empty groove when inserted into the empty groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention effectively prevents leakage of transported materials from the connection point by tightly fitting the sealing ring with the groove, greatly improving the internal sealing of the pipeline and ensuring no leakage. The cooperation between the convex tube and the empty groove makes the connection process simpler. During installation, simply align the convex tube with the empty groove to achieve initial positioning. Compared with traditional complex pipeline connection methods, no professional tools or complicated operations are required, reducing installation difficulty and labor costs. It also reduces the risk of seal failure due to improper operation during installation and improves installation efficiency. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of a sealing connection assembly for a gas detector injection molded part provided by this utility model;

[0015] Figure 2 A left view of the circular tube in a gas detector injection molding sealing connection assembly provided by this utility model;

[0016] Figure 3 A front view of the circular tube in a gas detector injection molding sealing connection assembly provided by this utility model;

[0017] Figure 4 A schematic diagram of the internal structure of the locking tube in the sealing connection assembly of the injection molded gas detector provided by this utility model;

[0018] In the diagram: 1. Round tube; 2. First sealing ring; 3. Second sealing ring; 4. First groove; 5. Second groove; 6. Boss A; 7. Boss B; 8. Protruding tube; 9. Threaded hole; 10. Pipe thread; 11. Rubber gasket; 12. Trapezoidal hole; 13. Locking tube; 14. Internal thread; 15. Sealing gasket; 16. Empty groove. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 As shown, a sealing connection assembly for a gas detector injection molded part includes two round tubes 1. One round tube 1 has a protrusion 8 on its outer surface, and the other round tube 1 has a boss B7 on its outer surface. The boss B7 has a slot 16 inside. The inner wall of the slot 16 and the outer surface of the protrusion 8 both have a first groove 4 and a second groove 5. The inner walls of one of the first grooves 4 and the second groove 5 are fitted with a first sealing ring 2 and a second sealing ring 3. When the first sealing ring 2 and the second sealing ring 3 are inserted into the other first groove 4 and the second groove 5, the outer surfaces of the first sealing ring 2 and the second sealing ring 3 are tightly fitted with the inner walls of the first groove 4 and the second groove 5.

[0021] One of the circular tubes 1 has a boss A6 on its outer surface. Boss A6 and boss B7 have the same radius. During the connection process, the two radii are consistent and can be precisely matched. When a bolt is used to fix boss A6 and boss B7 through the threaded hole 9, it can ensure uniform force and avoid local stress concentration caused by the difference in radius, thereby improving the stability and reliability of the connection structure and preventing the components from loosening during use. Threaded holes 9 are opened on the right side of boss A6 and the right side of boss B7. The outer surfaces of boss A6 and boss B7 can be tightly fitted by bolts. The threaded hole 9 of boss B7 does not penetrate boss B7. This design effectively increases the sealing performance.

[0022] Each round tube 1 has a pipe thread 10 on its outer surface, and each pipe thread 10 has two locking tubes 13 on its outer surface. The locking tubes 13 are designed for quick assembly and disassembly and have strong compatibility. Each locking tube 13 has a trapezoidal hole 12 inside, and each trapezoidal hole 12 has an internal thread 14 on its inner wall. The outer surface of the internal thread 14 is threaded to the outer surface of the pipe thread 10. The trapezoidal hole 12 is located inside the locking tube 13, and its cross-section is trapezoidal with the left side being wider than the right side. The hole wall is machined with internal threads 14, which form a threaded connection with the pipe thread 10 on the outer surface of the round tube 1.

[0023] Each circular tube 1 has a rubber pad 11 installed on its outer surface. The rubber pad 11 is made of a wear-resistant and highly malleable material. It is fitted onto the pipe thread 10 on the outer surface of the circular tube 1. It can fill the gap between the pipe and the circular tube 1 to assist in sealing and enhance the air circuit sealing. At the same time, its elastic buffering characteristics can absorb vibration energy and reduce the risk of loose connection. A sealing gasket 15 is connected to the left side of the convex tube 8. When the sealing gasket 15 is inserted into the empty groove 16, the sealing gasket 15 fits tightly with the empty groove 16. The sealing gasket 15 plays a key role in the sealing connection assembly of the gas detector injection molded part. It is connected to the side of the convex tube 8 and is made of highly elastic, wear-resistant rubber with good chemical stability. The sealing gasket 15 can also compensate for the small gaps caused by insufficient processing precision or use to a certain extent, ensuring the stability of the connection.

[0024] Working principle: The round tube 1 with the protruding tube 8 is connected to the round tube 1 with the protrusion B7 and the empty groove 16. The protruding tube 8 is inserted into the empty groove 16. At this time, the first sealing ring 2 and the second sealing ring 3 pre-installed in the first groove 4 and the second groove 5 on the protruding tube 8 and the empty groove 16 are pressed against each other and fill the groove gap by their own elastic deformation, forming a double seal and effectively preventing gas leakage. At the same time, the sealing gasket 15 on the left side of the protruding tube 8 is tightly attached to the inner wall of the empty groove 16, further enhancing the sealing effect. Since the protrusion A6 and the protrusion B7 have the same radius and both have threaded holes 9 on their right sides, the bolts are passed through the threaded holes 9 and the bolts are tightened to make the protrusion A6 and the protrusion B7 fit tightly together, thereby firmly connecting the two round tubes 1 together, enhancing the overall structural strength of the component and preventing the connection from loosening. The external pipe is put on the rubber gasket 11. By rotating the locking tube 13, the locking tube 13 moves along the pipe thread 10 towards the pipe, gradually squeezing the external pipe to lock it.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] 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 sealed connection assembly of an injection molded piece of a gas detector comprising two circular tubes (1), characterized in that, One of the circular tubes (1) has a protruding tube (8) on its outer surface, and the other circular tube (1) has a boss B (7) on its outer surface. The boss B (7) has a slot (16) inside. The inner wall of the slot (16) and the outer surface of the protruding tube (8) are both provided with a first groove (4) and a second groove (5). The inner walls of the first groove (4) and the second groove (5) are both fitted with a first sealing ring (2) and a second sealing ring (3).

2. The sealed connection assembly of an injection molded part of a gas detector according to claim 1, characterized in that: One of the circular tubes (1) has a boss A (6) on its outer surface, and the boss A (6) and the boss B (7) have the same radius.

3. The sealed connection of an injection molded part of a gas detector of claim 2, wherein: Both the right side of boss A (6) and the right side of boss B (7) are provided with threaded holes (9), and the outer surfaces of boss A (6) and boss B (7) can be tightly fitted together by bolts.

4. The sealed connection assembly of claim 1, wherein: Each of the circular tubes (1) has a pipe thread (10) on its outer surface, and each of the pipe threads (10) has two locking tubes (13) on its outer surface.

5. The sealed connection assembly of claim 4, wherein: Each of the locking tubes (13) has a trapezoidal hole (12) inside, and each trapezoidal hole (12) has an internal thread (14) on its inner wall. The outer surface of the internal thread (14) is threaded to the outer surface of the pipe thread (10).

6. The sealed connection assembly of an injection molded part of a gas detector of claim 1, wherein: Each of the circular tubes (1) has a rubber pad (11) installed on its outer surface. The rubber pad (11) is a material with strong wear resistance and plasticity.

7. The sealed connection of an injection molded part of a gas detector of claim 1, wherein: A sealing gasket (15) is connected to the left side of the convex tube (8). When the sealing gasket (15) is inserted into the empty groove (16), the sealing gasket (15) fits tightly with the empty groove (16).

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