Connecting flange convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of flanges, in particular to a connecting flange convenient to disassemble and assemble, which comprises a first flange and a second flange, opposite sides of the first flange and the second flange are mutually contacted, an inner cavity of the first flange is movably connected with a screw rod, one end of the screw rod penetrates to the other side of the second flange, and the other end of the screw rod is movably connected with the first flange. The surface of the screw rod is in threaded connection with a nut, one side of the nut is in close contact with the other side of the second flange, and a separation mechanism is arranged on the surface of the first flange; by arranging the separating mechanism, through meshing of a first gear and a second gear, the number of teeth of the second gear is larger than the number of teeth of the first gear, larger torque can be provided for rotation of the connecting rod, and therefore larger force is provided for an ejector block to extrude a second flange, and the first flange and the second flange can be separated; the disassembly time of the first flange and the second flange can be shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a connecting flange that is easy to assemble and disassemble. Background Art

[0002] Flange is also called flange flange or flange. Flange is a part that connects shafts to each other. It is used for connecting pipe ends. It is also used as flange on equipment inlet and outlet. It is used for connecting two devices, such as reducer flange, flange connection or flange joint. Of course, in the connection and installation of water pipes, connecting flanges are also needed to connect and cooperate with pipes. When pipes are docked, a connecting flange that is easy to disassemble and assemble will be used.

[0003] During the use of flanges, two flanges are usually butt-jointed. After butt-jointing, the position is fixed by screws and nuts to achieve extrusion of the two flanges, and then the butt-jointing of the pipelines is achieved. During long-term use of bolts, the pressure distribution between the flanges may be uneven due to changes in the tightening force. When the bolts are taken out, this uneven pressure distribution may make it difficult to separate the flanges. It is usually necessary to use external tools to knock and separate the flanges, which increases the separation time of the flanges. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, during the long-term use of the bolts, the pressure distribution between the flanges may be uneven due to the change in the tightening force. When the bolts are taken out, the uneven pressure distribution may make the flanges difficult to separate, and usually the flanges need to be knocked apart with the help of external tools, which increases the separation time of the flanges. The utility model proposes a connecting flange that is easy to disassemble and assemble.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a connection flange that is easy to disassemble and assemble, comprising a first flange and a second flange, the first flange and the second flange are in contact with each other on opposite sides, a screw is movably connected to the inner cavity of the first flange, one end of the screw penetrates to the other side of the second flange, a nut is threadedly connected to the surface of the screw, one side of the nut is in close contact with the other side of the second flange, and a separation mechanism is provided on the surface of the first flange;

[0006] The separation mechanism includes a rotating rod, which is rotatably connected to the inner wall of the first flange, a first gear is fixedly installed on the surface of the rotating rod, a rotating hole is opened at the top of the first flange, a connecting rod is rotatably connected to the inner cavity of the rotating hole, a top block is fixedly installed on the surface of the connecting rod, the other end of the connecting rod passes through the top of the first flange, a second gear is fixedly installed on the surface of the connecting rod, and the teeth of the first gear and the second gear are meshed with each other.

[0007] Preferably, a docking rod is fixedly mounted on one side of the first flange opposite to the second flange, a docking groove is formed on one side of the first flange opposite to the second flange, and a surface of the docking rod is slidably connected to an inner cavity of the docking groove.

[0008] Preferably, a connecting groove is provided on one side of the first flange, and a connecting ring is fixedly installed on one side of the second flange, and the surface of the connecting ring is slidably connected to the inner cavity of the connecting groove.

[0009] Preferably, sealing rings are fixedly mounted on the opposite sides of the first flange and the second flange, and the opposite sides of the two sealing rings are in close contact.

[0010] Preferably, a bearing is provided on the inner wall of the rotating hole, the outer side of the outer ring of the bearing is fixedly connected to the inner wall of the rotating hole, and the inner side of the inner ring of the bearing is fixedly connected to the surface of the connecting rod.

[0011] Preferably, a fixing groove is provided at the top of the first flange, a clamping rod is slidably connected to the inner cavity of the fixing groove, and a clamping groove is provided at the top of the rotating rod, and the surface of the clamping rod cooperates with the inner cavity of the clamping groove.

[0012] Preferably, a stopper is fixedly mounted on one end of the clamping rod, and a surface of the stopper cooperates with an inner wall of the fixing groove.

[0013] The utility model is beneficial in that:

[0014] The utility model sets a separation mechanism, through the meshing of the first gear and the second gear, the number of teeth of the second gear is greater than the number of teeth of the first gear, which can provide a greater torque for the rotation of the connecting rod, so that the top block provides a greater force for squeezing the second flange, which can separate the first flange from the second flange, can reduce the time for disassembling the first flange and the second flange, and increase work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first flange of the utility model;

[0018] Figure 3It is a structural schematic diagram of the separation mechanism of the utility model;

[0019] Figure 4 This is a structural exploded view of the fixing slot and the clamping rod of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the second flange of the utility model.

[0021] In the figure: 1. first flange; 2. second flange; 3. screw; 4. nut; 5. separation mechanism; 501. rotating rod; 502. first gear; 503. rotating hole; 504. connecting rod; 505. top block; 506. second gear; 6. docking rod; 7. docking groove; 8. connecting groove; 9. connecting ring; 10. sealing ring; 11. bearing; 12. fixing groove; 13. clamping rod; 14. clamping groove; 15. stopper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The following is combined with Figure 1-5 To further explain this application in detail,

[0024] The present application embodiment discloses a connection flange that is easy to disassemble and assemble. Figures 1 to 5 , a connection flange that is easy to disassemble and assemble, comprising a first flange 1 and a second flange 2, the first flange 1 and the second flange 2 are in contact with each other on opposite sides, a screw 3 is movably connected to the inner cavity of the first flange 1, one end of the screw 3 penetrates to the other side of the second flange 2, a nut 4 is threadedly connected to the surface of the screw 3, one side of the nut 4 is in close contact with the other side of the second flange 2, and a separation mechanism 5 is provided on the surface of the first flange 1;

[0025] The separation mechanism 5 includes a rotating rod 501, which is rotatably connected to the inner wall of the first flange 1, and a first gear 502 is fixedly installed on the surface of the rotating rod 501. A rotating hole 503 is opened at the top of the first flange 1, and a connecting rod 504 is rotatably connected to the inner cavity of the rotating hole 503. A top block 505 is fixedly installed on the surface of the connecting rod 504, and the other end of the connecting rod 504 passes through the top of the first flange 1. A second gear 506 is fixedly installed on the surface of the connecting rod 504, and the teeth of the first gear 502 and the second gear 506 are meshed with each other.

[0026] Reference Figure 2 and Figure 5 A docking rod 6 is fixedly installed on one side of the first flange 1 and the second flange 2, and a docking groove 7 is provided on one side of the first flange 1 and the second flange 2. The surface of the docking rod 6 is slidably connected to the inner cavity of the docking groove 7. The sliding connection between the docking rod 6 and the docking groove 7 can guide the docking of the first flange 1 and the second flange 2, so that the connecting holes of the first flange 1 and the second flange 2 can overlap with each other, thereby reducing the docking time;

[0027] Reference Figure 2 and Figure 5 A connecting groove 8 is provided on one side of the first flange 1, and a connecting ring 9 is fixedly installed on one side of the second flange 2. The surface of the connecting ring 9 is slidably connected with the inner cavity of the connecting groove 8. Through the sliding connection between the connecting groove 8 and the connecting ring 9, when the connecting ring 9 enters the inner cavity of the connecting groove 8, it can extend the opening of the second flange 2 to enter the inner cavity of the first flange 1, thereby increasing the sealing between the first flange 1 and the second flange 2;

[0028] Reference Figure 2 and Figure 5 A sealing ring 10 is fixedly installed on the opposite side of the first flange 1 and the second flange 2. The opposite sides of the two sealing rings 10 are in close contact. By providing the sealing ring 10, the sealing performance between the first flange 1 and the second flange 2 can be further increased, thereby further preventing the flowing medium from overflowing from the connection between the first flange 1 and the second flange 2;

[0029] Reference Figure 3 The inner wall of the rotating hole 503 is provided with a bearing 11, the outer side of the outer ring of the bearing 11 is fixedly connected to the inner wall of the rotating hole 503, and the inner side of the inner ring of the bearing 11 is fixedly connected to the surface of the connecting rod 504. By providing the bearing 11, the friction between the connecting rod 504 and the rotating hole 503 can be reduced, so that the rotation of the connecting rod 504 is more stable;

[0030] Reference Figure 3 and Figure 4 A fixing groove 12 is provided at the top of the first flange 1, and a clamping rod 13 is slidably connected to the inner cavity of the fixing groove 12. A clamping groove 14 is provided at the top of the rotating rod 501. The surface of the clamping rod 13 cooperates with the inner cavity of the clamping groove 14. The clamping rod 13 is slidably connected to the clamping groove 14, so that the clamping rod 13 can enter the interior of the rotating rod 501, thereby limiting the rotation angle of the rotating rod 501, and preventing the rotating rod 501 from rotating when the first flange 1 and the second flange 2 are working;

[0031] Reference Figure 4A stopper 15 is fixedly mounted on one end of the card rod 13, and the surface of the stopper 15 cooperates with the inner wall of the fixing groove 12. By setting the stopper 15, the upward movement distance of the card rod 13 can be limited to prevent the card rod 13 from moving out of the inner cavity of the fixing groove 12;

[0032] Working principle: fit the first flange 1 and the second flange 2 together, pass the screw rod 3 through the first flange 1 and the second flange 2 in turn, and thread the nut 4 with the threaded rod to make the nut 4 in close contact with the second flange 2 to complete the docking between the first flange 1 and the second flange 2. When the first flange 1 and the second flange 2 are tightly combined, when the first flange 1 and the second flange 2 are separated, the hexagonal column head reserved on the top of the rotating rod 501 can be used to drive the rotating rod 501 to rotate through a wrench, etc., and the rotation of the rotating rod 501 can drive the first gear 502 to rotate, and the mutual meshing of the first gear 502 and the second gear 506 can drive the second gear 506 rotates. Since the number of teeth of the second gear 506 is greater than the number of teeth of the first gear 502, during the rotation of the first gear 502, the rotation of the second gear 506 generates a larger torque. The rotation of the second gear 506 can drive the connecting rod 504 to rotate, and drive the top block 505 to rotate in the inner cavity of the rotating hole 503. When rotated to a suitable angle, part of the top block 505 will move out of the inner cavity of the rotating hole 503 and contact with the second flange 2, thereby forming an extrusion on the second flange 2, so as to achieve the separation between the first flange 1 and the second flange 2, thereby increasing the separation time between the first flange 1 and the second flange 2 and increasing work efficiency.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A connecting flange that is easy to disassemble and assemble, characterized in that: The invention comprises a first flange (1) and a second flange (2), wherein the first flange (1) and the second flange (2) are in contact with each other at opposite sides, a screw (3) is movably connected to the inner cavity of the first flange (1), one end of the screw (3) penetrates to the other side of the second flange (2), a nut (4) is threadedly connected to the surface of the screw (3), one side of the nut (4) is in close contact with the other side of the second flange (2), and a separation mechanism (5) is provided on the surface of the first flange (1); The separation mechanism (5) comprises a rotating rod (501), the rotating rod (501) is rotatably connected to the inner wall of the first flange (1), a first gear (502) is fixedly mounted on the surface of the rotating rod (501), a rotating hole (503) is opened at the top of the first flange (1), a connecting rod (504) is rotatably connected to the inner cavity of the rotating hole (503), a top block (505) is fixedly mounted on the surface of the connecting rod (504), the other end of the connecting rod (504) passes through the top of the first flange (1), a second gear (506) is fixedly mounted on the surface of the connecting rod (504), and the teeth of the first gear (502) and the second gear (506) are meshed with each other.

2. The connecting flange that is easy to assemble and disassemble according to claim 1, characterized in that: A docking rod (6) is fixedly mounted on one side of the first flange (1) and the second flange (2), a docking groove (7) is provided on one side of the first flange (1) and the second flange (2), and a surface of the docking rod (6) is slidably connected to an inner cavity of the docking groove (7).

3. The connecting flange that is easy to assemble and disassemble according to claim 1, characterized in that: A connecting groove (8) is provided on one side of the first flange (1), and a connecting ring (9) is fixedly mounted on one side of the second flange (2), wherein the surface of the connecting ring (9) is slidably connected to the inner cavity of the connecting groove (8).

4. The connecting flange that is easy to assemble and disassemble according to claim 1, characterized in that: A sealing ring (10) is fixedly mounted on the opposite side of the first flange (1) and the second flange (2), and the opposite sides of the two sealing rings (10) are in tight contact.

5. The connecting flange that is easy to assemble and disassemble according to claim 1, characterized in that: A bearing (11) is provided on the inner wall of the rotating hole (503); the outer side of the outer ring of the bearing (11) is fixedly connected to the inner wall of the rotating hole (503); and the inner side of the inner ring of the bearing (11) is fixedly connected to the surface of the connecting rod (504).

6. The connecting flange that is easy to assemble and disassemble according to claim 1, characterized in that: A fixing groove (12) is provided at the top of the first flange (1), and a clamping rod (13) is slidably connected to the inner cavity of the fixing groove (12). A clamping groove (14) is provided at the top of the rotating rod (501), and the surface of the clamping rod (13) cooperates with the inner cavity of the clamping groove (14).

7. The connecting flange that is easy to assemble and disassemble according to claim 6, characterized in that: A stopper (15) is fixedly mounted on one end of the clamping rod (13), and a surface of the stopper (15) cooperates with an inner wall of the fixing groove (12).

Images