Compact tee bend flanged pipe with bolt relief structure

Abstract

The utility model provides a compact tee bend flanged pipeline with bolt avoiding structure, which comprises a tee bend pipeline and three flanges arranged on the tee bend pipeline. The tee bend pipeline comprises a main pipeline, a branch pipeline connected perpendicularly to the main pipeline at the middle of the main pipeline, and two avoiding parts arranged oppositely on the branch pipeline. The flange is used for connecting and fixing the tee bend pipeline to an external pipeline and comprises a body and a plurality of bolt mounting holes formed in the body. The bolt mounting holes are used for mounting bolts to bolt the external pipeline to the tee bend pipeline. The avoiding part is in the shape of a tapered surface in the cross section perpendicular to the opening direction of the bolt mounting hole, and the cross section of the tapered surface close to the main pipeline is small. The avoiding part is arranged at the connection between the main pipeline and the branch pipeline and is used for avoiding the bolts, so that the bolts can be installed more conveniently and quickly, thereby improving the assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of tee flange technology, and in particular, it is a compact tee flange pipe with a bolt avoidance structure. Background Technology

[0002] A tee flange connects pipes in three directions via a flange, primarily used to change the direction of fluid flow. However, in actual installation, due to the narrow space of the pipe itself, when bolts are used to fix the pipe bolts through the bolt holes on the tee flange and the pipe flange, the bolt installation position is blocked by the pipe sidewall. During installation, repeated adjustments are required, which not only reduces work efficiency and is time-consuming and labor-intensive, but also, due to the narrow space, makes bolt tightening difficult, resulting in inconsistent tightness among multiple bolts and significantly affecting the tightness of the pipe connection.

[0003] In the utility model patent with publication number CN219734586U, the sidewall of the pipe obstructs the bolt holes, which is not conducive to the installation of bolts and results in low assembly efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a compact tee flange pipe with a bolt avoidance structure to solve the above problems.

[0005] A compact tee flange pipe with a bolt avoidance structure includes a tee pipe and three flanges located on the tee pipe. The tee pipe includes a main pipe, a branch pipe located at the midpoint of the outer wall of the main pipe and perpendicularly connected to the main pipe, and two avoidance portions located on the outer wall of the branch pipes and disposed opposite to each other. Each flange includes a body and a plurality of bolt mounting holes on the body. The flanges are fastened with bolts to secure the tee pipe to an external pipe. The avoidance portions are located at the connection between the main pipe and the branch pipes. The avoidance portion has a tapered surface on the wall of the branch pipe in a cross-section perpendicular to the opening direction of the bolt mounting holes on both sides of the main pipe; the tapered surface has a smaller cross-section on the side facing the main pipe. The avoidance portion is used to avoid bolts.

[0006] Furthermore, the tee pipe also includes two thickened portions located on the inner wall of the branch pipe and disposed opposite to the clearance portion. The thickened portions are used to increase the thickness of the inner wall of the branch pipe to ensure that the thickness of the inner wall of the branch pipe changes uniformly.

[0007] Furthermore, the tee pipe is made of engineering plastic.

[0008] Furthermore, the main body is located between the tee pipe and the external pipe, with one end connected to the tee pipe and the other end connected to the external pipe.

[0009] Furthermore, the main body is snapped into the tee pipe.

[0010] Furthermore, the body is made of engineering plastics.

[0011] Furthermore, the compact tee flange pipe with bolt avoidance structure also includes a set of reinforcing components for strengthening the connection between the tee pipe and the flange.

[0012] Furthermore, the reinforcing assembly includes two first reinforcing plates located on the outer wall of the main pipe and a plurality of second reinforcing plates located on the outer wall of the branch pipe.

[0013] Furthermore, one end of the first reinforcing plate abuts against the outer wall of the branch pipe, and the other end abuts against the flange and is perpendicular to the outer wall of the main pipe.

[0014] Furthermore, the cross-section of the second reinforcing plate in the direction of the bolt mounting holes perpendicular to both sides of the main pipe is a right triangle, and the two right-angled sides are respectively connected to the flange and the outer wall of the branch pipe.

[0015] Compared with existing technologies, the compact tee flange pipe with bolt avoidance structure provided by this utility model avoids bolts when the tee pipe is fixed to an external pipe. This prevents bolts from being blocked by the outer wall of the branch pipe during installation, thus ensuring normal bolt installation. Due to the avoidance, a connected installation space is formed between the two flanges located at the two ends of the main pipe, increasing the installation space for bolts. This not only makes bolt installation more convenient and faster, improving assembly efficiency, but also provides sufficient observation space for easy monitoring during installation. Furthermore, by providing a reinforcing part corresponding to the avoidance on the inner wall of the branch pipe, the thickness of the branch pipe varies uniformly, without affecting the fluid flow velocity within the branch pipe. Attached Figure Description

[0016] Figure 1 This utility model provides a structural schematic diagram of a compact tee flange pipe with a bolt avoidance structure.

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of a compact tee flange pipe with bolt avoidance structure in another direction.

[0018] Figure 3 for Figure 1 A cross-sectional view of the branch pipes of a compact tee flange pipe with bolt avoidance structure.

[0019] Figure 4 for Figure 3 A cross-sectional view of the branch pipes of a compact tee flange pipe with bolt avoidance structure in another direction. Detailed Implementation

[0020] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0021] like Figures 1 to 4 The diagram shows a structural schematic of a compact tee flange pipe with a bolt avoidance structure provided by this utility model. The compact tee flange pipe with bolt avoidance structure includes a tee pipe 10, three flanges 20 located on the tee pipe 10, and a set of reinforcing components 30 located between the tee pipe 10 and the flanges 20. The compact tee flange pipe with bolt avoidance structure also includes other functional modules, such as assembly components, which should be known to those skilled in the art and will not be described in detail here.

[0022] like Figure 1 As shown, the tee pipe 10 is used to change the direction of fluid movement, which should be well known to those skilled in the art. The tee pipe 10 includes a main pipe 11, a branch pipe 12 perpendicularly connected to the main pipe 11, and two clearance portions 13 located on the outer walls of the branch pipe 12 and arranged opposite to each other. The tee pipe 10 is made of engineering plastic, thus having better wear and corrosion resistance.

[0023] The main pipe 11 is used to transport fluid and can be a circular pipe. Flanges 20 are connected to both ends of the main pipe 11 for connection to an external pipe (not shown). The length of the main pipe 11 can be set according to actual needs, ensuring it can accommodate one hand to install operating bolts but not both hands simultaneously. The external pipe (not shown) refers to a device that, in conjunction with the tee pipe 10, is used to transport gas, liquid, or fluids containing fixed particles. It is mainly used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations, and should be considered existing technology. The connection between the external pipe (not shown) and the tee pipe 10 can be varied. In this embodiment, the external pipe (not shown) and the tee pipe 10 are fixed together by flanges.

[0024] The branch pipe 12 is used to transport fluid and can be a circular pipe. One end of the branch pipe 12 is connected to the main pipe 12, and the other end is connected to the flange 20. The branch pipe 12 cooperates with the main pipe 11 to transport fluid, forming a fluid channel with one inlet and two outlets or two inlets and one outlet. The specific flow pattern of the fluid channel can be set according to actual needs.

[0025] The branch pipe 12 is connected to the middle of the outer wall of the main pipe 11 and is integrally formed with the main pipe 11. The inner wall thickness of the branch pipe 12 and the main pipe 11 is uniform, so that the fluid can flow at a constant speed in the tee pipe 10.

[0026] The clearance portion 13 is used to avoid the bolt mounting holes 22 to facilitate bolt installation. It is a plane and perpendicular to the arrangement direction of the bolt mounting holes 22 at both ends of the main pipe 11. The specific working principle of the clearance portion 13 avoiding the bolt mounting holes 22 will be described below in conjunction with the bolt mounting holes 22.

[0027] like Figure 3 As shown, the clearance portion 13 is located at the connection between the main pipe 11 and the branch pipe 12. Specifically, the clearance portion 13 is located on the outer wall of the branch pipe 11, and the arrangement direction of the two clearance portions 13 is perpendicular to the opening direction of the bolt mounting holes 22 at both ends of the main pipe 11. The clearance portion 13 has a tapered surface on the cross-section of the outer wall of the branch pipe 12, and the cross-section of the tapered surface is smaller on the side closer to the main pipe 11.

[0028] The tee pipe 10 also includes two thickened portions 14 disposed on the inner wall of the branch pipe 12 and opposite to the clearance portion 13. The thickened portions 14 are used to increase the thickness of the inner wall of the branch pipe 12 to ensure a uniform change in the inner wall thickness. Specifically, since the clearance portion 13 is located on the outer wall of the branch pipe 12, it reduces the wall thickness of the branch pipe 12, resulting in uneven wall thickness, which affects the flow velocity of the fluid. The thickened portions 14 supplement the corresponding wall thickness of the branch pipe 12, thereby ensuring a uniform change in wall thickness.

[0029] like Figure 3 and Figure 4As shown, the thickened portion 14 is an inclined surface located on the inner wall of the branch pipe 12, with one end connected to the inner wall of the branch pipe 12 and the other end connected to the inner wall of the main pipe 11. The thickened portion 14 is inclined inward toward the central axis of the branch pipe 12, that is, the distance between the two thickened portions 14 on the inner wall of the main pipe 11 is less than the distance between the inner walls of the branch pipe 12.

[0030] like Figure 2 As shown, the flange 20 is used to connect the tee pipe 10 to an external pipe (not shown). The flange 20 is a disc-mounted metal connector whose core function is to achieve a detachable connection between pipes, valves, equipment, and other components through the engagement of peripheral bolt holes and sealing gaskets, providing structural stability and sealing performance. The flange 20 is existing technology and will not be described in detail here.

[0031] Two of the three flanges 20 are located at opposite ends of the main pipe 11, and the other is located at the end of the branch pipe 12 furthest from the main pipe 11. The three flanges 20 have the same structure and function; here, only one is briefly described. Each flange 20 includes a body 21 connected to the tee pipe 10, and a plurality of bolt mounting holes 22 located on the body 21.

[0032] The body 21 is used to connect and fix the tee pipe 10 to an external pipe (not shown), and it can be a rectangular plate. One end of the body 21 is connected to the pipe interface of the tee pipe 10, and the other end is connected to the external connecting pipe. One end of the body 21 can be connected to the tee pipe 10 by snap-fit ​​or threaded connection, and the other end is fastened to the external pipe (not shown) by bolts, thereby connecting and fixing the external pipe (not shown) to the tee pipe 10. The body 21 is made of engineering plastic, thus having better wear resistance and corrosion resistance.

[0033] The bolt mounting holes 22 are used to install bolts to fasten external pipes (not shown) onto the tee pipe 10. The number of bolt mounting holes 22 can be set according to actual needs. In this embodiment, there are four bolt mounting holes 22, and the four bolt mounting holes 22 are located at the four corners of the body.

[0034] Due to the provision of the clearance part 13, a connected installation space is formed between the two flanges 20 located at the two ends of the main pipe 11. This installation space is larger than the installation space without the clearance part 13, allowing the user to hold the flange 20 with one hand and install the bolt with the other, making assembly more convenient and faster. The ample installation space also allows for observation and proper alignment of each bolt before tightening with a wrench, resulting in a more aesthetically pleasing and tighter connection. In contrast, in previous small tee flanges, the limited length of the main pipe 11, further divided by the branch pipe 12, makes the installation space between the flanges 20 on both sides of the main pipe 11 much narrower, making bolt installation extremely inconvenient. The limited space makes it difficult for the user to properly align the bolt holes 22 during installation, and the wrench's limited range of motion makes it difficult to tighten to the correct position, hindering assembly.

[0035] like Figure 2 As shown, the reinforcing component 30 is used to strengthen the connection between the tee pipe 10 and the flange 20. It includes two first reinforcing plates 31 located on the sidewall of the main pipe 11, and multiple second reinforcing plates 32 located on the sidewall of the branch pipe 12. The reinforcing component 30 is made of engineering plastic, thus having better wear and corrosion resistance. The reinforcing component 30 and the tee pipe 10 can be integrally molded using an injection molding process.

[0036] Both first reinforcing plates 31 have the same structure and function; only one will be briefly described here. The first reinforcing plate 31 is used to strengthen the connection between the main pipe 11 and the flange 20, and it can be a rectangular plate. One end of the first reinforcing plate 31 abuts against the outer wall of the branch pipe 12, and the other end abuts against the flange 20, perpendicular to the outer wall of the main pipe 11. The arrangement direction of the two first reinforcing plates 31 is parallel to the opening direction of the bolt mounting holes 22 at both ends of the main pipe 11.

[0037] The second reinforcing plate 32 is used to strengthen the connection between the branch pipe 12 and the flange 20. One end of the plate is connected to the flange 20, and the other end is connected to the outer wall of the branch pipe 12. The cross-section of the second reinforcing plate 32 perpendicular to the arrangement direction of the bolt mounting holes 22 on both sides of the main pipe 12 is a right-angled triangle, and the two right-angled sides are connected to the flange 20 and the branch pipe 12, respectively. The number of the second reinforcing plates 32 can be set according to actual needs. In this embodiment, there are four second reinforcing plates 32, and the four second reinforcing plates 32 are evenly spaced around the outer wall of the branch pipe 12 to form a circle.

[0038] Compared with existing technologies, the compact tee flange pipe with bolt avoidance structure provided by this utility model avoids bolts when the tee pipe 10 is fixed to an external pipe by setting the avoidance part 13. This ensures that the bolts are not blocked by the outer wall of the branch pipe 12 during installation, thus preventing interference with normal bolt installation. Due to the avoidance part 13, a connected installation space is formed between the two flanges 20 located at the two ends of the main pipe 10, increasing the installation space for bolts. This not only makes bolt installation more convenient and faster, improving assembly efficiency, but also provides sufficient observation space for easy monitoring during installation. Furthermore, by setting the reinforcing part 14 on the inner wall of the branch pipe 12, corresponding to the avoidance part, the thickness of the branch pipe 12 varies uniformly, without affecting the fluid flow velocity within the branch pipe 12.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A compact tee flange pipe with a bolt avoidance structure, which is connected to an external pipe, characterized in that: The compact tee flange pipe with bolt avoidance structure includes a tee pipe and three flanges located on the tee pipe. The tee pipe includes a main pipe, a branch pipe located at the middle of the outer wall of the main pipe and perpendicularly connected to the main pipe, and two avoidance portions located on the outer wall of the branch pipe and arranged opposite to each other. The flange includes a body and a plurality of bolt mounting holes located on the body. The flange is fastened to the external pipe by bolts. The avoidance portions are located at the connection between the main pipe and the branch pipe. The avoidance portion has a tapered surface on the wall of the branch pipe in a cross section perpendicular to the opening direction of the bolt mounting holes on both sides of the main pipe. The tapered surface has a smaller cross section on the side facing the main pipe. The avoidance portion is used to avoid bolts.

2. The compact tee flange pipe with bolt avoidance structure as described in claim 1, characterized in that: The tee pipe also includes two thickened portions located on the inner wall of the branch pipe and disposed opposite to the clearance portion. The thickened portions are used to increase the thickness of the inner wall of the branch pipe to ensure that the thickness of the inner wall of the branch pipe changes uniformly.

3. The compact tee flange pipe with bolt avoidance structure as described in claim 1, characterized in that: The tee pipe is made of engineering plastic.

4. The compact tee flange pipe with bolt avoidance structure as described in claim 1, characterized in that: The main body is located between the tee pipe and the external pipe, with one end connected to the tee pipe and the other end connected to the external pipe.

5. The compact tee flange pipe with bolt avoidance structure as described in claim 4, characterized in that: The main body is snapped into the tee pipe.

6. The compact tee flange pipe with bolt avoidance structure as described in claim 4, characterized in that: The body is made of engineering plastics.

7. The compact tee flange pipe with bolt avoidance structure as described in claim 1, characterized in that: The compact tee flange pipe with bolt avoidance structure also includes a set of reinforcing components to strengthen the connection between the tee pipe and the flange.

8. The compact tee flange pipe with bolt avoidance structure as described in claim 7, characterized in that: The reinforcing assembly includes two first reinforcing plates located on the outer wall of the main pipe and multiple second reinforcing plates located on the outer wall of the branch pipes.

9. The compact tee flange pipe with bolt avoidance structure as described in claim 8, characterized in that: One end of the first reinforcing plate abuts against the outer wall of the branch pipe, and the other end abuts against the flange and is perpendicular to the outer wall of the main pipe.

10. The compact tee flange pipe with bolt avoidance structure as described in claim 8, characterized in that: The second reinforcing plate has a right-angled triangle cross section in the direction of the bolt mounting holes perpendicular to both sides of the main pipe, and the two right-angled sides are connected to the flange and the outer wall of the branch pipe, respectively.

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