Flange sealing structure

Abstract

The utility model relates to a flange sealing structure which comprises a connecting pipe, a flange plate installed at one end of the connecting pipe and a plurality of bolt holes formed in the flange plate, a sealing mechanism is arranged on one side of the flange plate, and the sealing mechanism comprises a sealing ring of an O-shaped structure. The sealing groove is formed in one side of the flange plate and is of a dovetail structure, the sealing ring and the sealing groove are used in cooperation, the dovetail sealing groove has the advantages that the sealing ring is not prone to falling off and suitable for the occasions where flanges are vertically installed, and the section view face of a common sealing groove is a rectangular face, and the sealing ring is placed in the common sealing groove and suitable for the occasions where the flanges are parallelly installed; if the flange needs to be vertically installed, the sealing ring is prone to falling off, and in the using process, under the cooperation of the limiting plate and the limiting groove, the situation that the bolt rotates in the fixing process, consequently, the flange plate is loosened, and the sealing effect of the sealing ring is affected is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a flange sealing structure. Background Art

[0002] Flange connectors are mainly used to connect complete sets of electrical equipment with external cables. The connector is fixed at the opening of the complete set of equipment cabinet through the flange, and then the cable assembly docked with it is used to achieve the connection between the cabinet and the external cables.

[0003] In order to improve the sealing between the flange connector and the cabinet during use, the existing flange connector usually has a sealing structure on one side of the flange connector. The existing flange connector is generally installed and fixed by bolts during use. When the bolts rotate during use, the flange connector becomes loose, affecting the sealing effect of the sealing structure. Utility Model Content

[0004] The purpose of the utility model is to provide a flange sealing structure with simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A flange sealing structure comprises a connecting pipe, a flange plate installed at one end of the connecting pipe, and a plurality of bolt holes opened on the flange plate, a sealing mechanism is arranged on one side of the flange plate, bolts are threadedly connected inside the plurality of bolt holes, a nut is installed at one end of the bolt, and a limiting mechanism is installed on the outside of the connecting pipe to prevent the bolts from rotating.

[0007] As a further optimization solution of the utility model, the sealing mechanism includes a sealing ring with an O-shaped structure and a sealing groove with a dovetail structure opened on one side of the flange, and the sealing ring is used in conjunction with the sealing groove.

[0008] As a further optimization scheme of the utility model, the limiting mechanism includes an annular plate sleeved on the outside of the connecting pipe, a plurality of fixing rods installed on the outside of the annular plate, and a first limiting plate installed at one end of the fixing rod and having a square structure. A limiting groove for use with the first limiting plate is provided on one side of the nut, and a fixing mechanism for fixing the annular plate is installed between the annular plate and the flange.

[0009] As a further optimization scheme of the utility model, the fixing mechanism includes a clamping plate installed on one side of the annular plate, a fixing plate installed on one side of the flange, a clamping groove opened on one side of the fixing plate and used in conjunction with the clamping plate, and clamping holes opened on both sides of the clamping plate, and two fixing components used in conjunction with the two clamping holes are installed inside the fixing plate.

[0010] As a further optimization scheme of the utility model, the fixing component includes an installation cavity opened inside the fixing plate, a slide plate slidably connected to the installation cavity, a mounting plate and a clamping rod respectively installed on both sides of the slide plate, and a spring installed on one side of the slide plate, one side of the clamping rod extends into the clamping groove and has an inclination angle for use with the clamping plate, one side of the mounting plate extends to the outside of the fixing plate and is installed with a pull plate, one end of the spring is fixedly connected to the inner wall of the installation cavity, and the clamping rod is used in conjunction with the clamping hole.

[0011] As a further optimization solution of the utility model, a second limit plate is installed on the outside of the connecting pipe to prevent the annular plate from rotating, and the annular plate is sleeved on the outside of the second limit plate, and a baffle is installed on the top of the second limit plate.

[0012] The beneficial effect of the utility model is that during use, the cooperation of the limit plate and the limit groove can prevent the bolt from rotating during the fixing process, thereby causing the flange to loosen and affecting the sealing effect of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 4 The utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 5 The utility model Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0018] In the figure: 1. connecting pipe; 2. flange; 3. bolt; 4. nut; 5. second limit plate; 6. annular plate; 7. fixing rod; 8. first limit plate; 9. limit groove; 10. sealing ring; 11. baffle; 12. clamping plate; 13. sealing groove; 14. clamping groove; 15. pull plate; 16. mounting plate; 17. clamping rod; 18. spring; 19. slide plate; 20. fixing plate. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] like Figure 1-Figure 5As shown, a flange sealing structure includes a connecting pipe 1, a flange plate 2 installed at one end of the connecting pipe 1, and a plurality of bolt holes opened on the flange plate 2. A sealing mechanism is provided on one side of the flange plate 2. The sealing mechanism includes a sealing ring 10 of an O-shaped structure, and a sealing groove 13 of a dovetail structure opened on one side of the flange plate 2. The sealing ring 10 is used in conjunction with the sealing groove 13. The dovetail sealing groove has the advantage that the sealing ring is not easy to fall off, and is suitable for occasions where the flange is installed vertically. The cross-sectional surface of the ordinary sealing groove is a rectangular surface, and the sealing ring is placed inside. It is suitable for occasions where the flange is installed in parallel. If the flange needs to be installed vertically, the sealing ring is easy to fall off, and the dovetail sealing groove is not easy to fall off. The cross-sectional surface of the sealing groove is a trapezoidal surface, which is small on the top and large on the bottom. The sealing ring is stuck inside when installed and is not easy to fall off. It is very suitable for occasions where the flange needs to be installed vertically. The interiors of the multiple bolt holes are threadedly connected with bolts 3, and a nut 4 is installed at one end of the bolt 3. A limiting mechanism is installed on the outside of the connecting pipe 1 to prevent the bolt 3 from rotating. The limiting mechanism includes an annular plate 6 sleeved on the outside of the connecting pipe 1, a plurality of fixing rods 7 installed on the outside of the annular plate 6, and a first limiting plate 8 installed at one end of the fixing rod 7 and having a square structure. A limiting groove 9 used in conjunction with the first limiting plate 8 is opened on one side of the nut 4, and a ring is installed between the annular plate 6 and the flange 2. The fixing mechanism for fixing the plate 6 includes a clamping plate 12 installed on one side of the annular plate 6, a fixing plate 20 installed on one side of the flange 2, a clamping groove 14 opened on one side of the fixing plate 20 and used in conjunction with the clamping plate 12, and clamping holes opened on both sides of the clamping plate 12. Two fixing components used in conjunction with the two clamping holes are installed inside the fixing plate 20. The fixing components include a mounting cavity opened inside the fixing plate 20, a slide plate 19 slidably connected inside the mounting cavity, mounting plates 16 and clamping rods 17 respectively installed on both sides of the slide plate 19, and a spring 18 installed on one side of the slide plate 19. One side of the clamping rod 17 extends into the clamping groove 14 and is opened. There is an inclination angle for use with the clamping plate 12, one side of the mounting plate 16 extends to the outside of the fixed plate 20 and is installed with a pull plate 15, one end of the spring 18 is fixedly connected to the inner wall of the mounting cavity, and the clamping rod 17 is used in conjunction with the clamping hole. A second limiting plate 5 is installed on the outside of the connecting tube 1 to prevent the annular plate 6 from rotating, and the annular plate 6 is sleeved on the outside of the second limiting plate 5, and a baffle 11 is installed on the top of the second limiting plate 5. The second limiting plate 5 is provided to prevent the annular plate 6 from rotating outside the connecting tube 1, so that the first limiting plate 8 always corresponds to the position of the limiting groove 9, and the baffle 11 is provided to prevent the annular plate 6 from sliding out from the outside of the connecting tube 1.

[0021] It should be noted that, when in use, this flange sealing structure makes a connector hole and a plurality of bolt holes at the position where the connector seat is installed in the cabinet, installs the sealing ring 10 into the sealing groove 13, and faces the cabinet with the side of the flange 2 provided with the sealing groove 13, and makes the plurality of bolt holes correspond to the plurality of bolt holes. At this time, the flange 1 hole will correspond to the connector hole, and screw the plurality of bolts 3 into the bolt holes and the bolt holes respectively. When the screwing is completed, the flange 1 is fixed to the cabinet, and then the annular plate 6 is slid toward the side close to the flange 2. When the clamping plate 12 moves to the clamping groove 14, when the card plate 12 contacts the card rod 17, the card plate 12 will push the card rod 17 to move under the action of the inclination angle, and the spring 18 will undergo elastic deformation at this time. When the position of the card rod 17 corresponds to the position of the card hole, under the action of the elastic force of the spring 18, the card rod 17 will move to the inside of the card hole, thereby fixing the card plate 12. At this time, the limit plate 8 will move to the inside of the limit groove 9. Since the limit plate 8 and the limit groove 9 are square structures, the bolt 3 is prevented from rotating during the fixing process, thereby causing the flange 2 to loosen and affecting the sealing effect of the sealing ring 10.

[0022] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A flange sealing structure, comprising a connecting pipe (1), a flange (2) mounted on one end of the connecting pipe (1), and a plurality of bolt holes provided on the flange (2), characterized in that: A sealing mechanism is provided on one side of the flange (2); bolts (3) are threadedly connected to the interior of the plurality of bolt holes; a nut (4) is installed at one end of the bolt (3); and a limiting mechanism is installed on the outside of the connecting pipe (1) to prevent the bolts (3) from rotating.

2. A flange sealing structure according to claim 1, characterized in that: The sealing mechanism comprises an O-shaped sealing ring (10) and a dovetail-shaped sealing groove (13) which is provided on one side of the flange (2), and the sealing ring (10) and the sealing groove (13) are used in conjunction with each other.

3. A flange sealing structure according to claim 1, characterized in that: The limiting mechanism comprises an annular plate (6) sleeved on the outside of the connecting pipe (1), a plurality of fixing rods (7) mounted on the outside of the annular plate (6), and a first limiting plate (8) mounted on one end of the fixing rods (7) and having a square structure, a limiting groove (9) for use with the first limiting plate (8) being formed on one side of the nut (4), and a fixing mechanism for fixing the annular plate (6) being installed between the annular plate (6) and the flange (2).

4. A flange sealing structure according to claim 3, characterized in that: The fixing mechanism comprises a clamping plate (12) mounted on one side of the annular plate (6), a fixing plate (20) mounted on one side of the flange (2), a clamping groove (14) provided on one side of the fixing plate (20) and used in conjunction with the clamping plate (12), and clamping holes provided on both sides of the clamping plate (12), wherein two fixing components used in conjunction with the two clamping holes are installed inside the fixing plate (20).

5. A flange sealing structure according to claim 4, characterized in that: The fixing assembly comprises a mounting cavity provided inside a fixing plate (20), a slide plate (19) slidably connected inside the mounting cavity, a mounting plate (16) and a clamping rod (17) respectively installed on both sides of the slide plate (19), and a spring (18) installed on one side of the slide plate (19); one side of the clamping rod (17) extends into the clamping slot (14) and is provided with an inclined angle for use with the clamping plate (12); one side of the mounting plate (16) extends to the outside of the fixing plate (20) and is provided with a pull plate (15); one end of the spring (18) is fixedly connected to the inner wall of the mounting cavity; and the clamping rod (17) is used in conjunction with the clamping hole.

6. A flange sealing structure according to claim 3, characterized in that: A second limiting plate (5) is installed on the outside of the connecting pipe (1) to prevent the annular plate (6) from rotating, and the annular plate (6) is sleeved on the outside of the second limiting plate (5). A baffle (11) is installed on the top of the second limiting plate (5).

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