Flange convenient to butt and assemble

Abstract

The flange comprises a first flange body and a second flange body, positioning rods are fixedly installed on the right side of the first flange body and close to the upper side and the lower side of the first flange body, positioning holes are formed in the left side of the second flange body and close to the upper side and the lower side of the second flange body, and cavities are formed in the outer sides of the positioning holes. An insertion rod is arranged in the cavity, an insertion hole is formed in the outer side of the positioning rod, the insertion rod and the insertion hole are clamped and matched with each other, a spring is fixedly installed at one end of the insertion rod, and the other end of the spring is fixedly connected with the inner wall of the cavity. Through the matching of the structures, the flange is preliminarily positioned, so that screw holes in the flange can be aligned, and the subsequent butt-joint assembly of the flange is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of flange assembly, in particular to a flange which is convenient for butt assembly. Background Art

[0002] Flange is a part that connects shafts to each other and is used to connect pipe ends. There are also flanges used on the inlet and outlet of equipment, which are used to connect two equipments, such as reducer flanges. Flange connection or flange joint refers to a detachable connection that is connected by flanges, gaskets and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices. When used on equipment, it refers to the inlet and outlet flanges of the equipment. There are holes on the flange, and bolts make the two flanges tightly connected. Gaskets are used to seal between flanges. Flanges are divided into threaded connection (threaded connection) flanges, welding flanges and clamping flanges, and they need to be butted during the assembly process of flanges. However, during the butt connection process, multiple screw holes need to be aligned to facilitate the use of bolts to lock the flanges. However, during the alignment of the screw holes, it is easy to be offset by external interference, which makes the butt connection of flanges time-consuming and labor-intensive, which greatly increases the difficulty of flange butt assembly, and brings certain adverse effects to actual use, so it needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to provide a flange that is easy to butt-jointly assemble. The positioning device provided realizes the preliminary positioning of the flange, so that the screw holes on the flange can be aligned, which facilitates the subsequent butt-joint assembly of the flange, brings certain favorable effects to actual use, and solves the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange that is easy to dock and assemble, comprising a first flange and a second flange, a positioning rod is fixedly installed on the right side of the first flange and close to its upper and lower sides, a positioning hole is opened on the left side of the second flange and close to its upper and lower sides, a cavity is opened on the outside of the positioning hole, an insertion rod is provided inside the cavity, and a socket is opened on the outside of the positioning rod, the insertion rod and the socket are clamped and adapted to each other, a spring is fixedly installed on one end of the insertion rod, and the other end of the spring is fixedly connected to the inner wall of the cavity.

[0005] Preferably, an annular clamping plate is fixedly mounted on the right side of the first flange, an annular clamping groove is provided on the left side of the second flange, and the annular clamping plate and the annular clamping groove are clamped and adapted to each other.

[0006] Preferably, a sealing gasket is fixedly mounted on the inner wall of the annular groove, and the sealing gasket is made of asbestos.

[0007] Preferably, a guide hole is opened on the left side of the positioning hole, and the guide hole is a trumpet-shaped structure.

[0008] Preferably, a shock absorbing block is fixedly mounted on the right side of the inner wall of the positioning hole, and a groove is provided on the left side of the shock absorbing block.

[0009] Preferably, a sliding sleeve is slidably connected to the outside of the insertion rod, and the sliding sleeve is fixedly connected to the right side of the inner wall of the cavity through a connecting block.

[0010] Preferably, an L-shaped pull rod is fixedly installed on the left side of the insertion rod and near its top, the top of the L-shaped pull rod passes through the second flange and is fixedly connected to a pull block, and the upper and lower sides of the second flange and the right side of the pull block are rotatably connected to a limiting block through bearings.

[0011] Compared with the prior art, the utility model has the following beneficial effects: when the positioning rod is inserted into the positioning hole, the insertion rod can move longitudinally under the push of the positioning rod, and then the insertion rod can be inserted into the inside of the socket under the elastic action of the spring, thereby realizing the limit of the positioning rod, so that the flange can be initially positioned, and then the screw holes on the flange can be aligned, which is convenient for the subsequent docking and assembly of the flange. Pulling the pull block can drive the L-shaped pull rod to move, and the L-shaped pull rod can drive the insertion rod to disengage from the socket, and rotating the limit block can make the limit block limit the pull block, thereby maintaining the disengagement state of the socket and the insertion rod, which is convenient for the staff to disassemble the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the internal structure of the positioning hole and cavity of the utility model;

[0015] Figure 4 It is an enlarged view of point A of the present utility model.

[0016] In the figure: 1. first flange; 2. second flange; 3. positioning rod; 4. positioning hole; 5. cavity; 6. plug rod; 7. plug hole; 8. spring; 9. annular clamping plate; 10. annular clamping groove; 11. sealing gasket; 12. guide hole; 13. shock absorbing block; 14. sliding sleeve; 15. L-shaped pull rod; 16. pull block; 17. limit block. DETAILED DESCRIPTION

[0017] 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.

[0018] Example 1, please refer to Figures 1 to 4 The utility model provides a technical solution: a flange that is easy to butt and assemble, including a first flange 1 and a second flange 2, a positioning rod 3 is fixedly installed on the right side of the first flange 1 and close to its upper and lower sides, a positioning hole 4 is opened on the left side of the second flange 2 and close to its upper and lower sides, a cavity 5 is opened on the outside of the positioning hole 4, an insertion rod 6 is provided inside the cavity 5, and an insertion hole 7 is opened on the outside of the positioning rod 3, the insertion rod 6 and the insertion hole 7 are mutually clamped and adapted, a spring 8 is fixedly installed on one end of the insertion rod 6, and the other end of the spring 8 is fixedly connected to the inner wall of the cavity 5.

[0019] Furthermore, an annular clamping plate 9 is fixedly installed on the right side of the first flange 1, and an annular clamping groove 10 is opened on the left side of the second flange 2. The annular clamping plate 9 and the annular clamping groove 10 are clamped and adapted to each other. The clamping connection between the annular clamping plate 9 and the annular clamping groove 10 can improve the sealing between the flanges.

[0020] Furthermore, a sealing gasket 11 is fixedly installed on the inner wall of the annular groove 10 . The sealing gasket 11 is made of asbestos. The sealing gasket 11 can further enhance the sealing effect of the annular clamping plate 9 and the annular groove 10 .

[0021] Furthermore, a guide hole 12 is opened on the left side of the positioning hole 4. The guide hole 12 is a trumpet-shaped structure. The trumpet-shaped guide hole 12 can guide the positioning rod 3, thereby facilitating the staff to quickly insert the positioning rod 3 into the interior of the positioning hole 4.

[0022] Example 2, please refer to Figures 1 to 4The difference between this embodiment and embodiment 1 is that a shock-absorbing block 13 is fixedly installed on the right side of the inner wall of the positioning hole 4, and a groove is opened on the left side of the shock-absorbing block 13. The shock-absorbing block 13 can play a buffering and protective role for the positioning rod 3. The outside of the insertion rod 6 is slidably connected with a sliding sleeve 14, and the sliding sleeve 14 is fixedly connected to the right side of the inner wall of the cavity 5 through a connecting block. The insertion rod 6 can be stably lifted and lowered under the action of the sliding sleeve 14, and an L-shaped pull rod 15 is fixedly installed on the left side of the insertion rod 6 and near its top. The top of the L-shaped pull rod 15 passes through the second flange 2 and is fixedly connected with a pull block 16. The upper and lower sides of the second flange 2 and the right side of the pull block 16 are rotatably connected to a limiting block 17 through a bearing. The limiting block 17 can limit the pull block 16, thereby maintaining the detached state of the socket 7 and the insertion rod 6, which is convenient for the staff to disassemble the flange.

[0023] Working principle: When the flange that is easy to connect and assemble is in use, the staff can insert the positioning rod 3 into the positioning hole 4, and the insertion rod 6 can move longitudinally under the push of the positioning rod 3, and then the insertion rod 6 can be inserted into the inside of the socket 7 under the elastic action of the spring 8, thereby realizing the limitation of the positioning rod 3, so that the flange can be initially positioned, and then the screw holes on the flange can be aligned. After the screw holes are aligned, the staff can quickly connect and assemble the flange. When the flange needs to be disassembled, the staff can pull the pull block 16, and pulling the pull block 16 can drive the L-shaped pull rod 15 to move, and the L-shaped pull rod 15 can drive the insertion rod 6 to disengage from the socket 7, and rotating the limit block 17 can make the limit block 17 limit the pull block 16, thereby maintaining the disengagement state of the socket 7 and the insertion rod 6, which makes it easy for the staff to disassemble the flange.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange for easy butt assembly, comprising a first flange (1) and a second flange (2), characterized in that: A positioning rod (3) is fixedly mounted on the right side of the first flange (1) and close to its upper and lower sides; a positioning hole (4) is provided on the left side of the second flange (2) and close to its upper and lower sides; a cavity (5) is provided on the outside of the positioning hole (4); an insertion rod (6) is provided inside the cavity (5); an insertion hole (7) is provided on the outside of the positioning rod (3); the insertion rod (6) and the insertion hole (7) are mutually engaged and adapted; a spring (8) is fixedly mounted on one end of the insertion rod (6); and the other end of the spring (8) is fixedly connected to the inner wall of the cavity (5).

2. A flange for facilitating butt-joint assembly according to claim 1, characterized in that: An annular clamping plate (9) is fixedly mounted on the right side of the first flange (1), and an annular clamping groove (10) is provided on the left side of the second flange (2); the annular clamping plate (9) and the annular clamping groove (10) are mutually clamped and adapted.

3. A flange for facilitating butt-joint assembly according to claim 2, characterized in that: A sealing gasket (11) is fixedly mounted on the inner wall of the annular groove (10), and the sealing gasket (11) is made of asbestos.

4. A flange for facilitating butt-joint assembly according to claim 1, characterized in that: A guide hole (12) is provided on the left side of the positioning hole (4), and the guide hole (12) is a trumpet-shaped structure.

5. The flange for facilitating butt-jointing assembly according to claim 1, characterized in that: A shock absorbing block (13) is fixedly mounted on the right side of the inner wall of the positioning hole (4), and a groove is provided on the left side of the shock absorbing block (13).

6. The flange for facilitating butt-joint assembly according to claim 1, characterized in that: The outside of the insertion rod (6) is slidably connected to a sliding sleeve (14), and the sliding sleeve (14) is fixedly connected to the right side of the inner wall of the cavity (5) via a connecting block.

7. The flange for facilitating butt-joint assembly according to claim 1, characterized in that: An L-shaped pull rod (15) is fixedly installed on the left side of the insertion rod (6) and close to its top, the top end of the L-shaped pull rod (15) passes through the second flange (2) and is fixedly connected to a pull block (16), and the upper and lower sides of the second flange (2) and located on the right side of the pull block (16) are rotatably connected to a limit block (17) through a bearing.

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