A flared flange positioning and installation device

Abstract

This utility model discloses a flared flange positioning and installation device, relating to the field of flange installation technology, including a first flange and a flange positioning device; a second flange is fixedly installed on the right side of the first flange, and four bolts are installed in a circular shape at equal intervals inside the first flange, with the right ends of the four bolts installed inside the second flange; the flange positioning device includes four circular positioning blocks, two sliding rods, two balls, two pressure plates, and two springs; four mounting grooves are equidistantly opened in a circular shape on the surface of the first flange, and the four circular positioning blocks are slidably installed inside the four mounting grooves, and the four circular positioning blocks are slidably sleeved on the surface of the four bolts, ensuring that the sealing positions of the two first flanges and the second flange are pressed in the same way, preventing gaps and leakage at the pressing positions of the first flange and the second flange, and improving the stability of the connection between the two first flanges and the second flange.

Description

Technical Field

[0001] This utility model relates to the field of flange installation technology, and in particular to a positioning and installation device for a flared flange. Background Technology

[0002] A flange, also called a flange disc or flange, is a part used to connect shafts, for connecting pipe ends; flanges are also used on equipment inlets and outlets for connecting two pieces of equipment, such as speed reducer flanges. A flange connection or flange joint refers to a detachable connection consisting of a flange, gasket, and bolts connected together as a combined sealing structure. A flared flange is one type of flange.

[0003] Currently, the traditional method for installing and securing flared flanges is to tighten the bolts around the perimeter. While rotating the bolts brings the flanges closer together, complex on-site conditions make it difficult to measure the distance between the two flanges using instruments. If workers rely solely on visual inspection to ensure the distance is equal, the large margin of error means that the distance between different positions on the flanges cannot be guaranteed to be uniform after installation. This uneven distance after tightening the nuts results in inconsistent sealing, leading to gaps and leaks in areas with less tight sealing. Furthermore, higher installation torque can cause plastic deformation of the flanges, affecting the stability of the flange connection. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a flared flange positioning and installation device that can solve the problem that the sealing positions of the two flanges are not pressed in the same way, and that gaps are prone to leakage when the two flanges are pressed lightly. Furthermore, when the installation torque is large, the flange may undergo plastic deformation, which affects the stability of the connection between the two flanges.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flared flange positioning and installation device, comprising a first flange and a flange positioning device; a second flange is fixedly installed on the right side of the first flange, and four bolts are equidistantly installed in a circle inside the first flange, with the right ends of the four bolts all installed inside the second flange; the flange positioning device comprises four annular positioning blocks, two sliding rods, two balls, two pressure plates, and two springs, and four mounting grooves are equidistantly opened in a circle on the surface of the first flange, the four annular positioning blocks are slidably installed inside the four mounting grooves, the four annular positioning blocks are slidably sleeved on the surface of the four bolts, and annular grooves are opened on the surface of each of the four annular positioning blocks, the two sliding rods are slidably connected inside the first flange, the two balls are fixedly connected to the opposite ends of the two sliding rods, and the two balls are slidably locked inside the annular grooves, and two circular sliding grooves are opened inside the first flange.

[0006] Preferably, a first flared steel pipe is fixedly connected inside the first flange, and a second flared steel pipe is fixedly connected inside the second flange.

[0007] Preferably, a rubber sealing ring is fixedly connected to the left end of the second flared steel pipe.

[0008] Preferably, the right end of the first flared steel pipe is provided with an annular groove, and the rubber sealing ring is slidably connected inside the annular groove.

[0009] Preferably, a nut is installed on the right end of each of the four bolts, and all four nuts are pressed against the surface of the second flange.

[0010] Preferably, the two pressure plates are slidably connected inside the two circular grooves, and the two pressure plates are fixedly connected to the opposite ends of the two slide rods.

[0011] Preferably, the two springs are fixedly connected to the surfaces of the two pressure plates, and the ends of the springs away from the pressure plates are fixedly connected to the inner wall of the circular groove.

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

[0013] 1. This flared flange positioning and installation device uses a circular positioning block in the middle to position the distance between the first flange and the second flange, thereby ensuring that the distance between different positions of the first flange and the second flange is the same after installation. This ensures that the sealing positions of the two first flanges and the second flange are pressed in the same way, preventing gaps and leakage at the pressing positions of the first flange and the second flange. It also avoids plastic deformation of the flange due to excessive installation torque, thus improving the stability of the connection between the two first flanges and the second flange. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall structure of a flared flange positioning and installation device according to the present invention.

[0016] Figure 2 This is a side view of the positioning and mounting device for a flared flange according to the present invention.

[0017] Figure 3 This is a cross-sectional structural diagram of the first flange of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the second flared steel pipe of this utility model.

[0019] Reference numerals: 1. First flange; 2. First flared steel pipe; 3. Second flange; 4. Second flared steel pipe; 5. Bolt; 6. Mounting groove; 7. Circular positioning block; 8. Circular groove; 9. Slide rod; 10. Ball; 11. Circular slide; 12. Pressure plate; 13. Spring; 14. Nut; 15. Rubber sealing ring; 16. Circular groove. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a flared flange positioning and installation device, including a first flange 1 and a flange positioning device. A first flared steel pipe 2 is fixedly connected inside the first flange 1. A second flange 3 is fixedly installed on the right side of the first flange 1. A second flared steel pipe 4 is fixedly connected inside the second flange 3. Four bolts 5 are installed in a circular pattern at equal intervals inside the first flange 1. The right ends of the four bolts 5 are all installed inside the second flange 3. Nuts 14 are installed on the right ends of the four bolts 5. The four nuts 14 are pressed against the surface of the second flange 3. The flange positioning device includes four circular positioning blocks 7, two sliding rods 9, two balls 10, two pressure plates 12, and two springs 13. Four mounting grooves 6 are equidistantly opened in a circular pattern on the surface of the first flange 1. Four circular positioning blocks 7 are slidably installed inside four mounting grooves 6. The four circular positioning blocks 7 are slidably sleeved on the surface of four bolts 5. The surface of each of the four circular positioning blocks 7 is provided with annular grooves 8. Two sliding rods 9 are slidably connected inside the first flange 1. Two balls 10 are fixedly connected to the opposite ends of the two sliding rods 9. The two balls 10 are slidably locked inside the annular grooves 8. The inside of the first flange 1 is provided with two circular sliding grooves 11. Two pressure plates 12 are slidably connected inside the two circular sliding grooves 11. The two pressure plates 12 are fixedly connected to the opposite ends of the two sliding rods 9. Two springs 13 are fixedly connected to the surface of the two pressure plates 12. The end of the spring 13 away from the pressure plate 12 is fixedly connected to the inner wall of the circular sliding groove 11.

[0025] When installing the first flange 1 and the second flange 3, the worker can first remove the annular positioning block 7 and slide it into the mounting groove 6. When the annular positioning block 7 slides to the left into the mounting groove 6, it squeezes the two balls 10. The two balls 10 slide in opposite directions due to the squeezing action of the annular positioning block 7, which in turn drives the two sliding rods 9 to slide in opposite directions. The sliding of the two sliding rods 9 in opposite directions drives the two pressure plates 12 to slide and squeeze the two springs 13. The springs 13 give the pressure plates 12 a reverse elastic force. After the annular positioning block 7 is fully installed into the mounting groove 6, the two springs 13 release their elastic force and push the two pressure plates 12 to slide relative to each other. The sliding of the two pressure plates 12 drives the two sliding rods 9 to slide, and the sliding of the two sliding rods 9 drives the two balls 10 to slide relative to each other and lock into the annular groove 8, thus fixing the annular positioning block 7. The worker can install the four annular positioning blocks 7 into the four mounting grooves 6 in the same way. Then, the worker removes the second flange 3 and places the first flange 3 inside. On the right side of flange 1, the worker takes out four bolts 5 and slides them into the interior of the first flange 1. The four bolts 5 are then slid into the interior of the four circular positioning blocks 7, so that the right ends of the four bolts 5 pass through the interior of the second flange 3. After the worker takes out the nuts 14 and installs them on the right ends of the bolts 5, the worker rotates the bolts 5 to tighten them, which can drive the first flange 1 and the second flange 3 to slide relative to each other, and make the four circular positioning blocks 7 press against the surface of the second flange 3. At this time, the distance between the first flange 1 and the second flange 3 can be positioned by the circular positioning blocks 7 supporting it in the middle. This ensures that the distance between different positions of the first flange 1 and the second flange 3 is the same after installation, and ensures that the sealing positions of the two first flange 1 and the second flange 3 are pressed in the same way. This prevents gaps and leakage at the pressing positions of the first flange 1 and the second flange 3, and avoids plastic deformation of the flange due to excessive installation torque, thus improving the stability of the connection between the two first flange 1 and the second flange 3.

[0026] A rubber sealing ring 15 is fixedly connected to the left end of the second flared steel pipe 4, and an annular groove 16 is opened at the right end of the first flared steel pipe 2. The rubber sealing ring 15 is slidably connected inside the annular groove 16.

[0027] When the first flange 1 and the second flange 3 approach each other, they can drive the first flared steel pipe 2 and the second flared steel pipe 4 to slide relative to each other and approach each other. The second flared steel pipe 4 slides and drives the rubber sealing ring 15 to slide and press into the inside of the annular groove 16. At this time, the connection position of the first flared steel pipe 2 and the second flared steel pipe 4 can be sealed by the squeezing action between the rubber sealing ring 15 and the annular groove 16, ensuring the sealing of the connection position of the first flared steel pipe 2 and the second flared steel pipe 4 and preventing leakage.

[0028] Structural Description:

[0029] First flange 1: It is an important component of the device. As one of the basic components for installation, it has a first flared steel pipe 2 fixedly connected inside. The right side is used to install the second flange 3. The surface has four equally spaced circular mounting grooves 6. The interior also has a structure for installing components such as sliding rods 9, which serves to connect and position.

[0030] First flared steel pipe 2: Fixedly connected inside the first flange 1, corresponding to the second flared steel pipe 4, used for pipe connection, with an annular groove 16 at its right end, which cooperates with the rubber sealing ring 15 at the end of the second flared steel pipe 4 to achieve sealing;

[0031] Second flange 3: Installed on the right side of first flange 1, with a second flared steel pipe 4 fixedly connected inside. Its surface has mounting holes that mate with bolts 5 of first flange 1. It is connected and fixed to first flange 1 by bolts 5 and nuts 14.

[0032] The second flared steel pipe 4 is fixedly connected inside the second flange 3 and cooperates with the first flared steel pipe 2 to realize the connection of the pipeline. Its left end is fixedly connected with a rubber sealing ring 15, which is used to cooperate with the annular groove 16 of the first flared steel pipe 2 for sealing.

[0033] Bolt 5: Four bolts 5 are installed in a circular pattern at equal intervals inside the first flange 1, with the right end passing through the second flange 3 and fitted with a nut 14, for connecting and fixing the first flange 1 and the second flange 3 together.

[0034] Installation groove 6: Four circular grooves are formed on the surface of the first flange 1, distributed at equal intervals, and are used to install the annular positioning block 7, providing installation space and sliding track for the annular positioning block 7;

[0035] Circular positioning block 7: Four circular positioning blocks 7 are slidably installed inside the four mounting grooves 6 respectively, and can be slidably sleeved on the surface of the four bolts 5; their surfaces are provided with annular grooves 8, which are used to cooperate with the sphere 10 to achieve their own fixation, and at the same time play a supporting and positioning role when the first flange 1 and the second flange 3 are connected.

[0036] Annular groove 8: It is formed on the surface of the four annular positioning blocks 7 and cooperates with the sphere 10. When the sphere 10 is inserted into the annular groove 8, it can fix the position of the annular positioning block 7.

[0037] Slide rod 9: Both slide rods 9 are slidably connected inside the first flange 1. One end is fixedly connected to a ball 10, and the other end is fixedly connected to a pressure plate 12. The fixing and loosening of the ring positioning block 7 are achieved through the cooperation between the ball 10 and the annular groove 8 of the ring positioning block 7, as well as the action of the pressure plate 12 and the spring 13.

[0038] Sphere 10: Two spheres 10 are fixedly connected to the opposite ends of the two slide rods 9, and can be slidably locked inside the annular groove 8. By engaging and disengaging from the annular groove 8, the fixed state of the annular positioning block 7 is controlled.

[0039] Circular groove 11: Two of them are formed inside the first flange 1 to install the pressure plate 12 and provide a track and space for the sliding of the pressure plate 12;

[0040] Pressure plate 12: Two pressure plates 12 are slidably connected inside two circular slide grooves 11 and fixedly connected to the opposite ends of two slide rods 9. They cooperate with spring 13. Under the elastic force of spring 13, they slide to drive slide rods 9 and ball 10 to move, thereby fixing and releasing the circular positioning block 7.

[0041] Spring 13: Two springs 13 are fixedly connected to the surfaces of the two pressure plates 12 respectively, and the other end is fixedly connected to the inner wall of the circular groove 11; during the installation and disassembly of the circular positioning block 7, the pressure plate 12 is pushed to move by compressing and releasing the elastic force, thereby controlling the engagement state of the ball 10 and the annular groove 8.

[0042] Nuts 14: Four nuts 14 are respectively installed on the right end of four bolts 5, pressing against the surface of the second flange 3, cooperating with the bolts 5, and fastening the first flange 1 and the second flange 3 together.

[0043] Rubber sealing ring 15: It is fixedly connected to the left end of the second flared steel pipe 4. When the first flange 1 and the second flange 3 approach each other, the rubber sealing ring 15 slides and presses into the annular groove 16 of the first flared steel pipe 2 to play a sealing role and prevent leakage at the connection.

[0044] Annular groove 16: It is opened at the right end of the first flared steel pipe 2 and cooperates with the rubber sealing ring 15. The sealing of the connection position of the first flared steel pipe 2 and the second flared steel pipe 4 is achieved by the compression between the two.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 utility model.

Claims

1. A flared flange positioning and installation device, characterized in that, include: First flange (1) and flange positioning device; A second flange (3) is fixedly installed on the right side of the first flange (1). Four bolts (5) are installed in a circular shape at equal intervals inside the first flange (1). The right ends of the four bolts (5) are all installed inside the second flange (3). The flange positioning device includes four annular positioning blocks (7), two sliding rods (9), two balls (10), two pressure plates (12), and two springs (13). The surface of the first flange (1) is provided with four equally spaced circular mounting grooves (6). The four annular positioning blocks (7) are slidably installed inside the four mounting grooves (6). The four annular positioning blocks (7) are slidably fitted onto the surfaces of the four bolts (5). The surfaces of the four annular positioning blocks (7) are provided with annular grooves (8). The two sliding rods (9) are slidably connected inside the first flange (1). The two balls (10) are fixedly connected to the opposite ends of the two sliding rods (9). The two balls (10) are slidably locked inside the annular grooves (8). The interior of the first flange (1) has two circular grooves (11).

2. The flared flange positioning and installation device according to claim 1, characterized in that: The first flange (1) is internally fixedly connected to a first flared steel pipe (2), and the second flange (3) is internally fixedly connected to a second flared steel pipe (4).

3. The flared flange positioning and installation device according to claim 2, characterized in that: A rubber sealing ring (15) is fixedly connected to the left end of the second flared steel pipe (4).

4. The flared flange positioning and installation device according to claim 3, characterized in that: The right end of the first flared steel pipe (2) is provided with an annular groove (16), and the rubber sealing ring (15) is slidably connected inside the annular groove (16).

5. The flared flange positioning and installation device according to claim 4, characterized in that: The right ends of the four bolts (5) are each fitted with a nut (14), and the four nuts (14) are pressed against the surface of the second flange (3).

6. The flared flange positioning and installation device according to claim 1, characterized in that: The two pressure plates (12) are slidably connected inside the two circular grooves (11), and the two pressure plates (12) are fixedly connected to the opposite ends of the two slide rods (9).

7. The flared flange positioning and installation device according to claim 6, characterized in that: The two springs (13) are fixedly connected to the surfaces of the two pressure plates (12), and the end of the spring (13) away from the pressure plate (12) is fixedly connected to the inner wall of the circular groove (11).

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