Positioning connection structure of flange plate

Abstract

The utility model discloses a flange plate positioning connection structure which comprises a first flange plate and a second flange plate, the first flange plate and the second flange plate are connected and fixed through bolts, a plurality of limiting square grooves are fixedly installed on the upper surface of the first flange plate, and a positioning block is fixedly installed on the lower surface of the first flange plate. A positioning hole is formed in the second flange plate, a clamping hole is formed in the positioning hole, an operator can finely adjust the position of a positioning block on the first flange plate by observing the position of a limiting square groove and the position of the positioning hole formed in the second flange plate during hole alignment installation, and it is ensured that the positioning block can be accurately connected with the positioning hole; the positioning block installed on the lower surface of the first flange plate and the limiting square groove are installed in a perpendicular mode, after positioning is successful through the limiting square groove and the positioning hole, the first flange plate is rotated to enable the positioning block to be inserted into the clamping hole to form clamping connection, and then the effect of simplifying positioning connection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a positioning and connecting structure of a flange. Background Art

[0002] Flange, also known as flange flange or flange, is a part that connects pipes to each other and is used for connection between pipe ends.

[0003] Flanges are common pipe connection tools in daily life. However, when operators use flanges to connect and install pipes, the positioning of the flanges on the holes has always been a rather troublesome process. The alignment of the flanges with the holes is the key to whether the pipes can be unblocked normally. However, the flanges on the current market cannot achieve simple and quick positioning and connection when aligning the holes, resulting in low efficiency in pipe installation.

[0004] Therefore, we provide a flange positioning connection structure. Utility Model Content

[0005] The purpose of the utility model is to provide a flange positioning connection structure to achieve the effect of simplifying the positioning connection in view of the above-mentioned existing technical problems.

[0006] In view of this, the utility model provides a flange positioning connection structure, including a first flange and a second flange, the first flange and the second flange are connected and fixed by bolts, and is characterized in that a plurality of limiting square grooves are fixedly installed on the upper surface of the first flange, a positioning block is fixedly installed on the lower surface of the first flange, a positioning hole is opened inside the second flange, and a clamping hole is opened inside the positioning hole.

[0007] Preferably, a through hole is formed at the upper end of the first flange, an assembly plate is fixedly mounted above the through hole, a contact ring is fixedly mounted at the upper end of the assembly plate, and a threaded ring column is fixedly mounted at the lower end of the assembly plate.

[0008] Preferably, a limiting ring is fixedly mounted on one side surface of the second flange, a sealing ring is fixedly mounted on the upper surface of the second flange, and a plurality of connecting holes are formed on the surface of the sealing ring.

[0009] Preferably, a plurality of air diffusion holes are provided on the upper surface of the second flange, and a plurality of screw-on holes are provided on the upper surface of the second flange.

[0010] Preferably, a threaded ring column is installed inside the first flange, the lower thread of the threaded ring column is screwed and connected with the inner wall thread, and the upper surface of the first flange is provided with a plurality of threaded holes.

[0011] Preferably, a rotating block is fixedly mounted on the upper end of the bolt, and a nut is threadedly screwed into one end of the bolt away from the rotating block.

[0012] Preferably, grooves are provided on both sides of the first flange and the second flange for easy connection and separation.

[0013] Compared with the prior art, the utility model provides a flange positioning connection structure, which has the following beneficial effects:

[0014] The utility model discloses that when installing the hole, the operator can fine-tune the position of the positioning block on the first flange by observing the limiting square groove and the positioning hole opened inside the second flange, so as to ensure that the positioning block can be accurately connected with the positioning hole. The positioning block installed on the lower surface of the first flange is installed vertically with the limiting square groove. After the positioning is successfully performed through the limiting square groove and the positioning hole, the first flange is rotated to insert the positioning block into the inside of the snap-in hole to form a snap-in connection, thereby achieving the effect of simplifying the positioning connection.

[0015] The utility model, the sealing ring is installed on the upper surface of the second flange, after the connection with the first flange is completed, the sealing performance of the connection between the first flange and the second flange can be ensured, and the internal space will not leak out, the connection hole opened on the surface of the sealing ring can ensure that the positioning block is inserted through the interior thereof and is connected with the positioning hole set below the sealing ring for clamping, and the air diffusion holes opened on the surface of the second flange are used to discharge the gas generated when the first flange is connected to the second flange, so as to facilitate the connection between the positioning block and the positioning hole, and the bolts can be threadedly screwed and connected with the screwing holes opened on the upper surface of the second flange through the threaded holes.

[0016] The utility model discloses that after the first flange and the second flange are positioned and connected, a rotating block at the upper end of the bolt is rotated so that the bolt is screwed through the threaded hole and then screwed into the threaded connection with the screwing hole opened on the surface of the second flange. A nut is installed from the other end of the bolt away from the rotating block to reinforce the connection, thereby ensuring the connection stability between the first flange and the second flange.

[0017] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a flange positioning connection structure proposed by the utility model;

[0019] Figure 2 A schematic diagram of the bottom structure of a first flange of a flange positioning connection structure proposed by the utility model;

[0020] Figure 3 A schematic diagram of a second flange structure of a flange positioning connection structure proposed by the utility model;

[0021] Figure 4 The utility model is an exploded view of the overall structure of a flange positioning connection structure.

[0022] In the figure: 1. first flange; 2. second flange; 3. groove; 4. rotating block; 5. bolt; 6. limiting square groove; 7. threaded hole; 8. contact ring; 9. assembly plate; 10. threaded ring column; 11. insertion hole; 12. screw-on hole; 13. air diffusion hole; 14. positioning hole; 15. snap-on hole; 16. nut; 17. positioning block; 18. sealing ring; 19. connecting hole; 20. inner wall thread; 21. limiting ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1: A flange positioning connection structure, such as Figure 1-Figure 4As shown, it includes a first flange 1 and a second flange 2, the first flange 1 and the second flange 2 are connected and fixed by bolts 5, a plurality of limiting square grooves 6 are fixedly installed on the upper surface of the first flange 1, a positioning block 17 is fixedly installed on the lower surface of the first flange 1, a positioning hole 14 is opened inside the second flange 2, and a clamping hole 15 is opened inside the positioning hole 14. After one end of the second flange 2 is installed on the pipeline, when the pipeline needs to be connected, the first flange 1 needs to be installed on the other end of the second flange 2 for hole positioning, so as to ensure that the hole opened on the first flange 1 can accurately align with the hole opened on the second flange 2 The holes are connected and communicated with each other, and the limiting square groove 6 is installed on the upper surface of the first flange 1. When installing the holes, the operator can fine-tune the position of the positioning block 17 on the first flange 1 by observing the limiting square groove 6 and the positioning hole 14 opened inside the second flange 2 to ensure that the positioning block 17 can be accurately connected to the positioning hole 14. The positioning block 17 installed on the lower surface of the first flange 1 is installed vertically with the limiting square groove 6. After the limiting square groove 6 and the positioning hole 14 are successfully positioned, the first flange 1 is rotated to insert the positioning block 17 into the inside of the snap-in hole 15 to form a snap-in connection, thereby achieving the effect of simplifying the positioning connection.

[0026] like Figure 1-Figure 4 As shown, an insertion hole 11 is opened at the upper end of the first flange 1, an assembly plate 9 is fixedly installed above the insertion hole 11, a contact ring 8 is fixedly installed at the upper end of the assembly plate 9, and a threaded ring column 10 is fixedly installed at the lower end of the assembly plate 9. In order to ensure that the internal space can be unblocked when the first flange 1 is connected to the second flange 2, the insertion hole 11 is opened in the first flange 1, so that the contact ring 8 can be installed at its upper end, and the contact ring 8 and the assembly plate 9 are fixedly installed. The assembly plate 9 is installed at the lower end of the contact ring 8, so that the threaded ring column 10 fixedly installed at the lower end of the assembly plate 9 can be inserted into the first flange 1 and the second flange 2 for threaded connection.

[0027] like Figure 1-Figure 4As shown, a limiting ring 21 is fixedly installed on one side surface of the second flange 2, a sealing ring 18 is fixedly installed on the upper surface of the second flange 2, a plurality of connection holes 19 are opened on the surface of the sealing ring 18, a plurality of air dispersion holes 13 are opened on the upper surface of the second flange 2, a plurality of screw-on holes 12 are opened on the upper surface of the second flange 2, and the sealing ring 18 can be limited and fixed around the limiting ring 21 by the setting of the limiting ring 21. The sealing ring 18 is installed on the upper surface of the second flange 2, and after the connection with the first flange 1 is completed, it can ensure that the first flange 1 The sealing performance of the connection with the second flange 2 ensures that the internal space will not leak out. The connection hole 19 opened on the surface of the sealing ring 18 can ensure that the positioning block 17 is inserted through the interior and connected with the positioning hole 14 set below the sealing ring 18. Through the air diffusion holes 13 opened on the surface of the second flange 2, in order to discharge the gas generated when the first flange 1 is connected to the second flange 2, it is convenient to connect the positioning block 17 with the positioning hole 14. The bolt 5 can be threadedly screwed with the screw-in hole 12 opened on the upper surface of the second flange 2 through the threaded hole 7.

[0028] Embodiment 2: A flange positioning connection structure, such as Figure 1-Figure 4 As shown, a threaded ring column 10 is installed inside the first flange 1, and the lower part of the threaded ring column 10 is threadedly screwed with the inner wall thread 20, and a plurality of threaded holes 7 are opened on the upper surface of the first flange 1. A rotating block 4 is fixedly installed on the upper end of the bolt 5, and a nut 16 is threadedly screwed on the end of the bolt 5 away from the rotating block 4. The first flange 1 is rotated clockwise so that the threaded ring column 10 installed inside the first flange 1 is threadedly screwed with the inner wall thread 20 set inside the second flange 2. During the screwing process of the threaded ring column 10, the thread After the ring column 10 completes the limited number of screwing circles inside the inner wall thread 20, the first flange 1 will not be able to be screwed and rotated, and the hole on the first flange 1 will be aligned with the hole opened on the second flange 2, thereby achieving the effect of hole connection. After the first flange 1 and the second flange 2 are positioned and connected, the rotating block 4 at the upper end of the bolt 5 is rotated so that the bolt 5 is screwed through the threaded hole 7 and then screwed together with the screwing hole 12 opened on the surface of the second flange 2. The nut 16 is reinforced from the other end of the bolt 5 away from the rotating block 4 to ensure the connection stability between the first flange 1 and the second flange 2.

[0029] like Figure 1-Figure 4 As shown, grooves 3 for connecting and disassembling are provided on both sides of the first flange 1 and the second flange 2. The existence of the grooves 3 can ensure the convenience of connecting or disassembling the first flange 1 and the second flange 2, and the grooves 3 can be used for easy grasping.

[0030] Working principle: After one end of the second flange 2 is installed on the pipeline, when the pipeline connection is required, the first flange 1 is installed on the other end of the second flange 2. It is necessary to position the holes to ensure that the holes opened on the first flange 1 can be accurately connected with the holes opened on the second flange 2. The limiting square groove 6 is installed on the upper surface of the first flange 1. When installing the holes, the operator can fine-tune the position of the positioning block 17 on the first flange 1 by observing the limiting square groove 6 and the positioning hole 14 opened inside the second flange 2 to ensure that the positioning block 17 can be accurately connected with the positioning hole 14. The positioning block 17 installed on the lower surface of the first flange 1 is installed vertically with the limiting square groove 6. After the limiting square groove 6 and the positioning hole 14 are successfully positioned, the first flange 1 is rotated to insert the positioning block 17 into the inside of the clamping hole 15 to form a clamping connection, thereby achieving the effect of simplifying the positioning connection. The first flange 1 is rotated clockwise so that the threaded ring column 10 installed inside the first flange 1 is threadedly screwed with the inner wall thread 20 set inside the second flange 2. During the screwing process of the threaded ring column 10, the threaded ring column 10 completes the number of screwing turns inside the inner wall thread 20. After that, the first flange 1 will not be able to be screwed and rotated, and the hole on the first flange 1 will be aligned with the hole opened on the second flange 2, thereby achieving the effect of hole connection. After the first flange 1 and the second flange 2 are positioned and connected, the rotating block 4 at the upper end of the bolt 5 is rotated so that the bolt 5 is screwed through the threaded hole 7 and then screwed into the screwing hole 12 opened on the surface of the second flange 2. The nut 16 is tightened from the other end of the bolt 5 away from the rotating block 4 to ensure the connection stability of the first flange 1 and the second flange 2. After the connection with the first flange 1 is completed, it can To ensure the sealing performance of the connection between the first flange 1 and the second flange 2 and to ensure that the internal space does not leak, the connection hole 19 opened on the surface of the sealing ring 18 can ensure that the positioning block 17 is inserted through the interior thereof and connected with the positioning hole 14 set below the sealing ring 18 by clamping. Through the air diffusion holes 13 opened on the surface of the second flange 2, in order to discharge the gas generated when the first flange 1 and the second flange 2 are connected, and to facilitate the connection between the positioning block 17 and the positioning hole 14, the bolt 5 can be threadedly screwed with the screw-in hole 12 opened on the upper surface of the second flange 2 through the threaded hole 7.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flange positioning connection structure, comprising a first flange (1) and a second flange (2), wherein the first flange (1) and the second flange (2) are connected and fixed by bolts (5), characterized in that: A plurality of limiting square grooves (6) are fixedly mounted on the upper surface of the first flange (1), a positioning block (17) is fixedly mounted on the lower surface of the first flange (1), a positioning hole (14) is provided inside the second flange (2), and a clamping hole (15) is provided inside the positioning hole (14).

2. A flange positioning connection structure according to claim 1, characterized in that: The upper end of the first flange (1) is provided with an insertion hole (11), an assembly plate (9) is fixedly mounted above the insertion hole (11), a contact ring (8) is fixedly mounted on the upper end of the assembly plate (9), and a threaded ring column (10) is fixedly mounted on the lower end of the assembly plate (9).

3. A flange positioning connection structure according to claim 1, characterized in that: A limiting ring (21) is fixedly mounted on one side surface of the second flange (2), a sealing ring (18) is fixedly mounted on the upper surface of the second flange (2), and a plurality of connection holes (19) are formed on the surface of the sealing ring (18).

4. A flange positioning connection structure according to claim 3, characterized in that: A plurality of air diffusion holes (13) are provided on the upper surface of the second flange (2), and a plurality of screw-on holes (12) are provided on the upper surface of the second flange (2).

5. The flange positioning connection structure according to claim 1, characterized in that: A threaded ring column (10) is installed inside the first flange (1), and the lower thread of the threaded ring column (10) is screwed together with the inner wall thread (20), and a plurality of threaded holes (7) are provided on the upper surface of the first flange (1).

6. A flange positioning connection structure according to claim 1, characterized in that: The upper end of the bolt (5) is fixedly mounted with a rotating block (4), and one end of the bolt (5) away from the rotating block (4) is threadedly screwed with a nut (16).

7. The flange positioning connection structure according to claim 1, characterized in that: Grooves (3) are provided on both sides of the first flange (1) and the second flange (2) for facilitating connection and separation.

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