A gas elbow

Abstract

This utility model discloses a gas elbow, including a connecting elbow. A connecting pipe is fixedly installed at the right end of the connecting elbow, and an external delivery pipe is threadedly installed at the right end of the connecting pipe. A fixing device is fixedly installed on the outer surfaces of the connecting pipe and the external delivery pipe. Similarly, the upper end of the connecting elbow is designed in the same way. A protective device is fixedly installed at the front and rear ends of the connecting elbow, and an installation device is fixedly installed at the front and rear ends of the protective device. In this gas elbow, the external delivery pipe is initially screwed into the connecting pipe through its external thread. After the external delivery pipe is screwed in, the high-temperature resistant sealing ring is locked into the two mounting grooves, thereby improving the sealing performance of the connection. Then, a first bolt is screwed into the first and second mounting brackets, further fixing the external delivery pipe to the connecting pipe, thus improving the stability of the elbow connection.

Description

Technical Field

[0001] This utility model relates to the field of elbow technology, and in particular to a gas elbow. Background Technology

[0002] Gas elbows are specialized connecting fittings used in gas pipeline systems to change the direction of the pipeline. Their core function is to safely and accurately guide the pipeline to be laid according to the designed route while ensuring continuous and airtight gas delivery, so as to adapt to the building structure, avoid obstacles, or connect equipment. They are not only the rudder of the pipeline direction, but also a key link to ensure the structural integrity and airtightness of the gas system. They can effectively reduce flow resistance and prevent eddies or stress concentration caused by sudden changes in direction, thereby improving gas transmission efficiency and the safety of long-term system operation.

[0003] However, the elbow is not properly locked after connection, especially when gas passes through the gas elbow, it will generate a certain vibration, which can easily cause the connection between the elbow and the pipe to loosen; in addition, the elbow does not have a good protective structure, and the elbow is exposed and easily scratched.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] The main purpose of this utility model is to provide a gas elbow that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A gas elbow includes a connecting elbow, a connecting pipe fixedly installed at the right end of the connecting elbow, an external delivery pipe threadedly installed at the right end of the connecting pipe, and a fixing device fixedly installed on the outer surfaces of the connecting pipe and the external delivery pipe. Similarly, the upper end of the connecting elbow is designed in the same way. A protective device is fixedly installed at the front and rear ends of the connecting elbow, and an installation device is fixedly installed at the front and rear ends of the protective device.

[0007] Preferably, the inner wall of the connecting pipe is engraved with internal threads, and the outer surface of the external conveying pipe is engraved with external threads. Each end of both the connecting pipe and the external conveying pipe has a corresponding mounting groove, and a high-temperature resistant sealing ring is installed between the two mounting grooves. The external conveying pipe is initially screwed into the connecting pipe through its external threads, and after the external conveying pipe is screwed in, the high-temperature resistant sealing ring is locked into the two mounting grooves, thereby improving the sealing performance of the connection.

[0008] Preferably, the fixing device includes a first mounting bracket and a second mounting bracket, with a plurality of first bolts installed between the first and second mounting brackets. The first mounting bracket is fixedly installed on the outer surface of the connecting pipe, and the second mounting bracket is fixedly installed on the outer surface of the external conveying pipe. Screwing the first bolts into the first and second mounting brackets further secures the external conveying pipe to the connecting pipe, improving the stability of the elbow connection.

[0009] Preferably, the protective device includes a first protective cover and a second protective cover. Each of the first and second protective covers has a corresponding slot at one end. Four No. 2 bolts are installed at the front ends of both the first and second protective covers. The first and second protective covers are fixedly mounted on the outer surface of the connecting elbow using these bolts. The first and second protective covers are placed at the front and rear ends of the connecting elbow respectively using their slots. The No. 2 bolts are then screwed into the first and second protective covers, thereby fixing them to the connecting elbow and providing protection.

[0010] Preferably, the installation device includes a first fixing bracket and a second fixing bracket. Each of the first and second fixing brackets has a set of screw holes at its upper and right ends. The first fixing bracket is fixedly installed at the front end of the first protective cover, and the second fixing bracket is fixedly installed at the rear end of the second protective cover. The first and second fixing brackets are fixed in the appropriate positions using the screw holes, thereby securing the connecting elbow.

[0011] Preferably, the connecting elbow is arc-shaped.

[0012] Preferably, the internal thread and the external thread are matched in specifications.

[0013] Preferably, both the first mounting bracket and the second mounting bracket are annular in shape.

[0014] Preferably, the slot and the connecting elbow are the same size and their positions correspond.

[0015] Preferably, both the first fixing frame and the second fixing frame are L-shaped.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The external delivery pipe is initially screwed into the connecting pipe through its external thread. After the external delivery pipe is screwed in, the high-temperature resistant sealing ring is locked in the two mounting grooves, thereby improving the sealing of the connection. Then, the No. 1 bolt is screwed into the No. 1 mounting bracket and the No. 2 mounting bracket, thereby further fixing the external delivery pipe to the connecting pipe and improving the stability of the elbow connection.

[0017] 2. Place the No. 1 and No. 2 protective covers into the front and rear ends of the connecting elbow respectively through their slots. Then screw the No. 2 bolt into the No. 1 and No. 2 protective covers to fix them to the connecting elbow and protect it from external scratches.

[0018] 3. By transforming the traditional right-angle elbow into a smooth arc-shaped connecting elbow, the violent eddies, flow separation, and impact noise generated by the gas during sharp turns are eliminated, significantly reducing local resistance and obtaining a higher gas flow rate under the same inlet pressure, making the stove more powerful. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a gas elbow according to the present invention; Figure 2 This is a schematic diagram of the overall structure of a gas elbow connecting pipe and external delivery pipe device according to the present invention. Figure 3 This is a schematic diagram of the overall structure of a fixing device for a gas elbow according to the present invention; Figure 4 This is a schematic diagram of the overall structure of a protective device for a gas elbow according to the present invention. Figure 5 This is a schematic diagram of the overall structure of the installation device for a gas elbow according to the present invention.

[0020] In the diagram: 1. Connecting elbow; 2. Connecting pipe; 3. Fixing device; 4. Protective device; 5. Installation device; 6. External conveying pipe; 20. Internal thread; 21. External thread; 22. Mounting groove; 23. High-temperature resistant sealing ring; 30. Mounting bracket No. 1; 31. Mounting bracket No. 2; 32. Bolt No. 1; 40. Protective cover No. 1; 41. Protective cover No. 2; 42. Slot; 43. Bolt No. 2; 50. Fixing bracket No. 1; 51. Fixing bracket No. 2; 52. Screw hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms installation, setting, connection, etc., should be interpreted broadly. For example, connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-5 As shown, a gas elbow includes a connecting elbow 1. A connecting pipe 2 is fixedly installed on the right end of the connecting elbow 1. An external delivery pipe 6 is threadedly installed on the right end of the connecting pipe 2. A fixing device 3 is fixedly installed on the outer surface of the connecting pipe 2 and the external delivery pipe 6. Similarly, the upper end of the connecting elbow 1 is designed in the same way. A protective device 4 is fixedly installed on the front and rear ends of the connecting elbow 1. An installation device 5 is fixedly installed on the front and rear ends of the protective device 4. The connecting elbow 1 is arc-shaped.

[0025] The inner wall of the connecting pipe 2 is engraved with an internal thread 20, and the outer surface of the external conveying pipe 6 is engraved with an external thread 21. Each end of both the connecting pipe 2 and the external conveying pipe 6 has a corresponding mounting groove 22. A high-temperature resistant sealing ring 23 is installed between the two mounting grooves 22. The internal thread 20 and the external thread 21 are matched in specifications. The external conveying pipe 6 is initially screwed into the connecting pipe 2 through its external thread 21. After the external conveying pipe 6 is screwed in, the high-temperature resistant sealing ring 23 is then locked into the two mounting grooves 22, thereby improving the sealing performance of the connection.

[0026] The fixing device 3 includes a first mounting bracket 30 and a second mounting bracket 31. Several first bolts 32 are installed between the first mounting bracket 30 and the second mounting bracket 31. The first mounting bracket 30 is fixedly installed on the outer surface of the connecting pipe 2, and the second mounting bracket 31 is fixedly installed on the outer surface of the external conveying pipe 6. Both the first mounting bracket 30 and the second mounting bracket 31 are annular in shape. By screwing the first bolts 32 into the first mounting bracket 30 and the second mounting bracket 31, the external conveying pipe 6 is further fixed to the connecting pipe 2, thereby improving the stability of the elbow connection.

[0027] The protective device 4 includes a first protective cover 40 and a second protective cover 41. Each of the first and second protective covers 40 has a corresponding slot 42 at one end. Four second-order bolts 43 are installed at the front ends of both the first and second protective covers 40 and 41. The first and second protective covers 40 and 41 are fixedly mounted on the outer surface of the connecting elbow 1 using the second-order bolts 43. The slots 42 are the same size as the connecting elbow 1 and are positioned correspondingly. The first and second protective covers 40 and 41 are placed at the front and rear ends of the connecting elbow 1 respectively using the slots 42. Then, the second-order bolts 43 are screwed into the first and second protective covers 40 and 41, thus fixing the first and second protective covers 40 and 41 to the connecting elbow 1 for protection.

[0028] The mounting device 5 includes a first fixing bracket 50 and a second fixing bracket 51. Both the first fixing bracket 50 and the second fixing bracket 51 have a set of screw holes 52 at their upper and right ends. The first fixing bracket 50 is fixedly installed at the front end of the first protective cover 40, and the second fixing bracket 51 is fixedly installed at the rear end of the second protective cover 41. Both the first fixing bracket 50 and the second fixing bracket 51 are L-shaped. The first fixing bracket 50 and the second fixing bracket 51 are fixed in the appropriate positions through the screw holes 52, thereby fixing the connecting elbow 1.

[0029] It should be noted that this utility model is a gas elbow. By transforming the traditional right-angle elbow into a smooth arc-shaped connecting elbow 1, the severe eddy currents, flow separation, and impact noise generated when the gas makes a sharp turn are eliminated, significantly reducing local resistance and obtaining a higher gas flow rate under the same inlet pressure, resulting in a stronger firepower for the stove. Furthermore, the external delivery pipe 6 is initially screwed into the connecting pipe 2 through its external thread 21. After the external delivery pipe 6 is screwed in, the high-temperature resistant sealing ring 23 is then secured in the two mounting grooves 22, thereby improving the sealing performance at the connection. Then, the first... Bolt 32 is screwed into mounting bracket 30 and mounting bracket 31 to further fix the external delivery pipe 6 to the connecting pipe 2, improving the stability of the elbow connection. At the same time, the first protective cover 40 and the second protective cover 41 are placed at the front and rear ends of the connecting elbow 1 respectively by the slots 42 on them. Then, bolt 43 is screwed into the first protective cover 40 and the second protective cover 41 to fix the first protective cover 40 and the second protective cover 41 to the connecting elbow 1, so as to protect the connecting elbow 1 and prevent the connecting elbow 1 from being easily scratched by the outside.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas bend comprising a connecting bend (1), characterized in that: A connecting pipe (2) is fixedly installed on the right end of the connecting elbow (1). An external conveying pipe (6) is threaded on the right end of the connecting pipe (2). A fixing device (3) is fixedly installed on the outer surface of the connecting pipe (2) and the external conveying pipe (6). Similarly, the upper end of the connecting elbow (1) is designed in the same way. A protective device (4) is fixedly installed on the front end and the rear end of the connecting elbow (1). An installation device (5) is fixedly installed on the front end and the rear end of the protective device (4).

2. A gas elbow according to claim 1, characterised in that: The inner wall of the connecting pipe (2) is engraved with an internal thread (20), and the outer surface of the external conveying pipe (6) is engraved with an external thread (21). One end of the connecting pipe (2) and the external conveying pipe (6) is provided with an installation groove (22), and a high-temperature resistant sealing ring (23) is installed between the two installation grooves (22).

3. A gas elbow according to claim 1, characterized in that: The fixing device (3) includes a first mounting bracket (30) and a second mounting bracket (31). Several first bolts (32) are installed between the first mounting bracket (30) and the second mounting bracket (31). The first mounting bracket (30) is fixedly installed on the outer surface of the connecting pipe (2), and the second mounting bracket (31) is fixedly installed on the outer surface of the external conveying pipe (6).

4. A gas elbow according to claim 1, characterized in that: The protective device (4) includes a first protective cover (40) and a second protective cover (41). Each of the first protective cover (40) and the second protective cover (41) has a slot (42) at one end. The front ends of the first protective cover (40) and the second protective cover (41) are jointly equipped with four second bolts (43). The first protective cover (40) and the second protective cover (41) are fixedly installed on the outer surface of the connecting elbow (1) by the second bolts (43).

5. A gas elbow according to claim 1, characterized in that: The installation device (5) includes a first fixing bracket (50) and a second fixing bracket (51). The first fixing bracket (50) and the second fixing bracket (51) each have a set of screw holes (52) at their upper and right ends. The first fixing bracket (50) is fixedly installed at the front end of the first protective cover (40), and the second fixing bracket (51) is fixedly installed at the rear end of the second protective cover (41).

6. A gas elbow according to claim 1, characterized in that: The connecting elbow (1) is arc-shaped.

7. A gas elbow according to claim 2, characterized in that: The internal thread (20) is matched with the external thread (21) in specifications.

8. A gas elbow according to claim 3, characterized in that: Both the first mounting bracket (30) and the second mounting bracket (31) are ring-shaped.

9. A gas elbow according to claim 4, characterized in that: The slot (42) and the connecting elbow (1) are the same size and are positioned in the front and back.

10. A gas elbow according to claim 5, characterized in that: Both the first fixing frame (50) and the second fixing frame (51) are L-shaped.

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