Forged steel high-pressure fixed flange ball valve convenient to position and install

Abstract

The utility model discloses a forged steel high-pressure fixed flange ball valve convenient to position and install, and relates to the field of flange ball valves, the forged steel high-pressure fixed flange ball valve comprises a ball valve body, the ball valve body comprises a pipeline, two ends of the pipeline are fixedly connected with flange sheets, the surface of the pipeline is provided with an N-shaped fixed plate, and one surface of the N-shaped fixed plate is provided with a first through hole. By arranging the N-shaped fixing plate, the N-shaped fixing plate is firstly fixed with the flange ball valve, then the flange obtained through butt joint is placed in the N-shaped fixing plate, the flange ball valve is suspended at the moment, then one mounting hole of the flange of the flange ball valve is connected with the first through hole by rotating the main body of the flange ball valve, and the flange ball valve is fixed through the second through hole. Bolt fixing can be carried out when the second through hole is aligned with the flange hole of the butted flange, the operation can be completed by a single worker, the hole positions of the flange ball valve do not need to be opposite through hand lifting, and the installation process is simplified.

Description

Technical Field

[0001] The utility model relates to the field of flange ball valves, in particular to a forged steel high-pressure fixed flange ball valve which is easy to position and install. Background Art

[0002] Forged steel high-pressure ball valves are mainly used for long-distance pipeline transportation of oil and natural gas and urban gas pipeline systems. Due to the unique characteristics of valves used in long-distance pipelines, their ability to withstand pipeline stress, safety, weather resistance, and long-term reliability are fully considered during design; the sealing and structural design are unique to the special stunt company. The operating modes include manual-worm gear drive, pneumatic, electric, and various special control forms.

[0003] After searching, the applicant found that a Chinese patent disclosed a pneumatic three-way flange ball valve that is easy to position and install. Its publication (announcement) number is "CN 212899895 U". This patent mainly connects the control housing through the fixing frame at the bottom and the support at the top of the valve cylinder, and engages the symmetrically parallel card plate at the bottom of the fixing frame with the positioning groove at the top of the support, so as to facilitate the use of fixing bolts to penetrate the fixing frame and the support for assembly and fixing, thereby avoiding assembly deviation between the control housing and the valve cylinder;

[0004] The device in the above patent can conveniently fix the flange and the control housing, but when fixing the commonly used flange ball valve to the pipeline, two people are usually required to work together, one person is responsible for positioning, and the other person is responsible for bolting. Moreover, when one person is positioning, it is easy to cause shaking, resulting in the flange plate docking deviation, making installation difficult. The above patent cannot solve this problem, resulting in a time-consuming and labor-intensive installation process. Utility Model Content

[0005] The purpose of the utility model is to provide a forged steel high-pressure fixed flange ball valve which is easy to position and install, so as to solve the problem that the device in the above patent proposed in the above background technology can conveniently fix the flange and the control housing, but the commonly used flange ball valve usually requires two people to work together when fixing it with the pipeline, one person performs positioning and the other person performs bolt fixing, and when one person performs positioning, shaking is likely to occur, resulting in the flange plate docking deviation, causing installation difficulties. The above patent cannot solve this problem, resulting in the problem of time-consuming and labor-intensive installation process.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a forged steel high-pressure fixed flange ball valve that is easy to position and install, comprising a ball valve body, the ball valve body comprising a pipeline, both ends of the pipeline are fixedly connected with flanges, the surface of the pipeline is provided with an N-shaped fixing plate, one side of the N-shaped fixing plate is provided with a first through hole, the other side of the N-shaped fixing plate is provided with a second through hole, the first through hole and the second through hole are on the same horizontal line, the inner wall of the pipeline is slidably connected with a trapezoidal stop block, and the trapezoidal stop block is located below the first through hole.

[0007] Preferably, a fan-shaped groove is provided at the bottom of the N-shaped fixing plate, and the size of the fan-shaped groove is larger than the longitudinal section area of ​​the N-shaped fixing plate.

[0008] Preferably, a second square through hole is formed on one side wall of the fan-shaped groove, and a first square through hole is formed on the other side wall of the fan-shaped groove, and the second square through hole and the first square through hole are slidably connected with a toothed plate.

[0009] Preferably, one side of the tooth plate is fixedly connected to a limiting plate, and one end of the tooth plate is fixedly connected to a pull ring.

[0010] Preferably, the size of the limiting plate is smaller than the size of the second square through hole, and the size of the limiting plate is larger than the size of the first square through hole.

[0011] Preferably, a slide groove is provided on one side of the N-shaped fixed plate, a movable plate is slidably connected inside the slide groove, a tooth protrusion is fixedly connected to the bottom surface of the movable plate, and the tooth protrusion passes through the inner wall of the bottom side of the slide groove and contacts the tooth plate.

[0012] Preferably, a first spring is fixedly connected to the top surface of the movable plate, and one end of the first spring away from the movable plate is fixedly connected to the inner wall on the upper side of the first spring.

[0013] Preferably, a guide groove is provided on the inner wall of the N-shaped fixing plate, and a fan-shaped stop block is slidably connected inside the guide groove, and the fan-shaped stop block contacts the surface of the pipe, and a third spring is fixedly connected to the top of the fan-shaped stop block, and the top of the third spring is fixedly connected to the upper inner wall of the guide groove, and a plurality of second springs are fixedly connected to one side of the trapezoidal stop block, and one end of the plurality of second springs away from the trapezoidal stop block is fixedly connected to the groove of the inner wall of the N-shaped fixing plate.

[0014] The technical effects and advantages of the utility model are as follows: the utility model sets an N-shaped fixing plate, which is first fixed to the flange ball valve through the N-shaped fixing plate, and then the butted flange is placed in the N-shaped fixing plate. At this time, the flange ball valve is suspended in the air, and then the main body of the flange ball valve is rotated so that one of the mounting holes of the flange of the flange ball valve is aligned with the first through hole, the second through hole and the flange hole of the butted flange, and then bolt fixing can be performed. This operation can be completed by a single staff member, and there is no need to manually lift the flange ball valve to make the holes relative to each other, thereby simplifying the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the N-shaped fixing plate of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable plate part of the utility model.

[0018] Figure 4 It is a schematic diagram of the front cross-sectional structure of the N-shaped fixing plate of the present utility model.

[0019] In the figure: 1. ball valve body; 2. N-shaped fixing plate; 3. pipeline; 4. first through hole; 5. trapezoidal stop block; 6. flange; 7. second through hole; 8. fan-shaped groove; 9. fan-shaped stop block; 10. first spring; 11. slide groove; 12. movable plate; 13. pull ring; 14. first square through hole; 15. tooth plate; 16. second square through hole; 17. limit plate; 18. tooth protrusion; 19. second spring; 20. guide groove; 21. third spring. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides Figure 1-4A forged steel high-pressure fixed flange ball valve that is easy to position and install is shown, comprising a ball valve body 1, the ball valve body 1 comprising a pipe 3, both ends of the pipe 3 are fixedly connected with flanges 6, an N-shaped fixing plate 2 is provided on the surface of the pipe 3, a first through hole 4 is provided on one side of the N-shaped fixing plate 2, a second through hole 7 is provided on the other side of the N-shaped fixing plate 2, the first through hole 4 and the second through hole 7 are on the same horizontal line, a trapezoidal stop block 5 is slidably connected to the inner wall of the pipe 3, the trapezoidal stop block 5 is below the first through hole 4, and the trapezoidal stop block 5 will not affect the bolt passing through the first through hole 4.

[0022] like Figure 2 As shown, a fan-shaped groove 8 is provided at the bottom of the N-shaped fixing plate 2, and the size of the fan-shaped groove 8 is larger than the longitudinal section area of ​​the N-shaped fixing plate 2. A second square through hole 16 is provided on the side wall of one side of the fan-shaped groove 8, and a first square through hole 14 is provided on the other side wall of the fan-shaped groove 8. The second square through hole 16 and the first square through hole 14 are slidably connected with a tooth plate 15, and the tooth plate 15 is in contact with the tooth protrusion 18, so that the tooth plate 15 is positioned, so that the N-shaped fixing plate 2 is fixed on the pipe 3.

[0023] like Figure 2 As shown, one side of the tooth plate 15 is fixedly connected to a limit plate 17, one end of the tooth plate 15 is fixedly connected to a pull ring 13, the size of the limit plate 17 is smaller than the size of the second square through hole 16, and the size of the limit plate 17 is larger than the size of the first square through hole 14. The limit plate 17 is larger than the first square through hole 14 to prevent the tooth plate 15 from moving too much, and the tooth plate 15 is separated from the N-shaped fixed plate 2.

[0024] like Figure 2 As shown, the top surface of the moving plate 12 is fixedly connected with the first spring 10 , and one end of the first spring 10 away from the moving plate 12 is fixedly connected to the inner wall of the upper side of the first spring 10 .

[0025] like Figure 4 As shown, a guide groove 20 is provided on the inner wall of the N-shaped fixing plate 2, and a fan-shaped stop block 9 is slidably connected inside the guide groove 20. The fan-shaped stop block 9 contacts the surface of the pipe 3, and a third spring 21 is fixedly connected to the top of the fan-shaped stop block 9. The top of the third spring 21 is fixedly connected to the upper inner wall of the guide groove 20. A plurality of second springs 19 are fixedly connected to one side of the trapezoidal stop block 5, and one end of the plurality of second springs 19 away from the trapezoidal stop block 5 is fixedly connected to the groove of the inner wall of the N-shaped fixing plate 2.

[0026] like Figure 2 and Figure 3 As shown, a slide groove 11 is provided on one side of the N-shaped fixed plate 2, and a movable plate 12 is slidably connected inside the slide groove 11. A tooth protrusion 18 is fixedly connected to the bottom surface of the movable plate 12. The tooth protrusion 18 penetrates the inner wall of the bottom side of the slide groove 11 and contacts the tooth plate 15.

[0027] Working principle of the utility model: When the utility model is used, the N-shaped fixed plate 2 is first connected with the ball valve body 1, the movable plate 12 is first pushed, the pull ring 13 is pulled, the tooth plate 15 is moved by the movement of the pull ring 13, and the limit plate 17 is moved by the movement of the tooth plate 15 until the limit plate 17 is close to one side of the first square through hole 14, and then the fan-shaped groove 8 is sleeved on the N-shaped fixed plate 2 of the ball valve body 1, and the pull ring 13 is pushed again to make the limit plate 17 pass through the second square through hole 16, and then the movable plate 12 is loosened to make the tooth protrusion 18 conflict with the tooth plate 15;

[0028] Then move the N-shaped fixing plate 2 to the docking flange, so that the N-shaped fixing plate 2 is hung on the docking flange surface, so that the trapezoidal stop block 5 contacts the docking flange. At this time, the flange ball valve is suspended in the air, and then the ball valve body 1 is rotated so that the flange plate 6 and the first through hole 4 and the second through hole 7 and the flange hole of the docking flange are on the same horizontal line, and then the bolts are tightened. This article highlights the innovative structure and does not go into too much detail about the prior art.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A forged steel high-pressure fixed flange ball valve that is easy to position and install, comprising a ball valve body (1), characterized in that: The ball valve body (1) comprises a pipe (3), both ends of which are fixedly connected with flanges (6), an N-shaped fixing plate (2) is provided on the surface of the pipe (3), a first through hole (4) is provided on one side of the N-shaped fixing plate (2), a second through hole (7) is provided on the other side of the N-shaped fixing plate (2), the first through hole (4) and the second through hole (7) are located on the same horizontal line, and a trapezoidal stop block (5) is slidably connected to the inner wall of the pipe (3), and the trapezoidal stop block (5) is located below the first through hole (4).

2. A forged steel high-pressure fixed flange ball valve that is easy to position and install according to claim 1, characterized in that: A fan-shaped groove (8) is provided at the bottom of the N-shaped fixing plate (2), and the size of the fan-shaped groove (8) is larger than the longitudinal section area of ​​the N-shaped fixing plate (2).

3. A forged steel high-pressure fixed flange ball valve that is easy to position and install according to claim 2, characterized in that: A second square through hole (16) is formed on one side wall of the fan-shaped groove (8), a first square through hole (14) is formed on the other side wall of the fan-shaped groove (8), and the second square through hole (16) and the first square through hole (14) are slidably connected to a toothed plate (15).

4. A forged steel high-pressure fixed flange ball valve that is easy to position and install according to claim 3, characterized in that: One side of the tooth plate (15) is fixedly connected to a limiting plate (17), and one end of the tooth plate (15) is fixedly connected to a pull ring (13).

5. A forged steel high-pressure fixed flange ball valve that is easy to position and install according to claim 4, characterized in that: The size of the limiting plate (17) is smaller than the size of the second square through hole (16), and the size of the limiting plate (17) is larger than the size of the first square through hole (14).

6. A forged steel high-pressure fixed flange ball valve that is easy to position and install according to claim 1, characterized in that: A slide groove (11) is provided on one side of the N-shaped fixed plate (2), a movable plate (12) is slidably connected inside the slide groove (11), a tooth protrusion (18) is fixedly connected to the bottom surface of the movable plate (12), and the tooth protrusion (18) penetrates the inner wall of the bottom side of the slide groove (11) and contacts the tooth plate (15).

7. A forged steel high pressure fixed flange ball valve that is easy to position and install according to claim 6, characterized in that: A first spring (10) is fixedly connected to the top surface of the movable plate (12); one end of the first spring (10) away from the movable plate (12) is fixedly connected to the inner wall on the upper side of the first spring (10).

8. The forged steel high-pressure fixed flange ball valve that is easy to position and install according to claim 1, characterized in that: The inner wall of the N-shaped fixing plate (2) is provided with a guide groove (20), and a fan-shaped stopper (9) is slidably connected inside the guide groove (20), and the fan-shaped stopper (9) contacts the surface of the pipe (3), and a third spring (21) is fixedly connected to the top of the fan-shaped stopper (9), and the top of the third spring (21) is fixedly connected to the upper inner wall of the guide groove (20), and a plurality of second springs (19) are fixedly connected to one side of the trapezoidal stopper (5), and one end of the plurality of second springs (19) away from the trapezoidal stopper (5) is fixedly connected to the groove of the inner wall of the N-shaped fixing plate (2).

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