Anti-disassembly and anti-theft type hard sealing forged steel flange ball valve

Abstract

The utility model relates to the technical field of flange ball valves, and provides an anti-disassembly and anti-theft type hard sealing forged steel flange ball valve which comprises a valve seat, first fixing plates are fixedly connected to the two ends of the valve seat, a first pipeline is fixedly connected to one side of each first fixing plate, a hemisphere is movably connected to the inner wall of the valve seat, and a second pipeline is fixedly connected to the inner wall of the hemisphere. A rotating disc is fixedly connected to the bottom end of the hemisphere, a fixing column is fixedly connected to the top end of the hemisphere, a valve rod is arranged at the top end of the fixing column, a shell is movably connected to the upper portion of the valve seat, and second fixing plates are fixedly connected to the two sides of the shell through bolts. Expansion screws are arranged at the upper and lower ends of the surface of the first fixing plate. According to the technical scheme, the valve rod is protected through the shell, meanwhile, an alarm is given when the pressure sensor is not pressed, and the problem that when the valve is placed outdoors, the valve is likely to be stolen due to the fact that the valve is convenient to disassemble is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange ball valves, and in particular to an anti-disassembly and theft type hard-sealed forged steel flange ball valve. Background Art

[0002] Flange ball valve and gate valve are valves of the same type, the difference is that its closing part is a ball, which rotates around the center line of the valve body to open and close. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in pipelines. The flange ball valve standard GB / T21465-2008 "Valve Terminology" defines it as: a valve in which the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the valve stem.

[0003] The patent specification with the announcement number CN217762166U discloses a flange ball valve, including a ball valve body and a fixed rod, wherein a connecting pipe runs through the interior of the ball valve body, a ball is rotatably connected to the middle of the connecting pipe, and a valve core is rotatably connected to the interior of the ball; the top of the valve core is fixedly connected to a valve stem, a sleeve is sleeved on the top of the valve stem, and the sleeve is fixedly connected to the ball valve body, and a slide groove is provided on both sides of the sleeve, and a slider is slidably matched inside the slide groove, and a support plate is fixedly connected between the sliders. Through the above structure, a fixed rod, a fixed block, a limit groove and a second limit block are provided, and the second limit block at the bottom of the fixed rod is inserted into the limit groove, and the rotation operation is realized by pressing down the fixed block, and the limit groove and the second limit block are designed so that fixed rods of different models cannot be inserted, thereby solving the problem that anyone can rotate and adjust the ball valve in the prior art.

[0004] However, in the implementation of the relevant technology, it is found that the above-mentioned flange-based ball valve has the following problem: when the valve is placed outdoors, the valve may be stolen because it is easy to disassemble. Utility Model Content

[0005] The utility model provides a disassembly-proof and theft-proof hard-sealed forged steel flange ball valve, which solves the problem that when the valve is placed outdoors, the valve may be easily disassembled, thereby causing the valve to be stolen.

[0006] The technical solution of the utility model is as follows:

[0007] A disassembly-proof and theft-proof hard-sealed forged steel flange ball valve comprises a valve seat, both ends of the valve seat are fixedly connected to a first fixing plate, one side of the first fixing plate is fixedly connected to a first pipe, the inner wall of the valve seat is movably connected to a hemisphere, the bottom end of the hemisphere is fixedly connected to a turntable, the top of the hemisphere is fixedly connected to a fixing column, the top of the fixing column is provided with a valve stem, the upper part of the valve seat is movably connected to a shell, both sides of the shell are fixedly connected to a second fixing plate by bolts, and expansion screws are provided at the upper and lower ends of the surface of the first fixing plate.

[0008] Preferably, a connecting block is fixedly connected to the inner top end of the shell, and a trapezoidal block is fixedly connected to the lower part of one end of the connecting block.

[0009] Preferably, a square groove is provided above one side of the first fixing plate, and two sides of the shell and the inner side of the square groove form a sliding structure.

[0010] Preferably, a rivet groove is provided at the top of the valve seat, and the trapezoidal block and the rivet groove form a mortise and tenon structure.

[0011] Preferably, an annular groove is provided at the bottom end of the inner wall of the valve seat, and the turntable and the annular groove constitute a limiting structure.

[0012] Preferably, second pipes are movably connected on both sides of the valve seat, a first thread is formed at one end of the second pipe, thread grooves are formed on both sides of the valve seat, and the first thread and the thread groove form a threaded fit.

[0013] Preferably, a column is provided on the inner wall of the shell, one end of the column is movably connected to a fixing rod, the other end of the column is provided with an elastic sheet, one end of the elastic sheet is fixedly connected to a pressure block, one end of the pressure block is provided with a pressure sensor, one end of the fixing rod is fixedly connected to a spring, and both sides of the fixing rod are fixedly connected to sliders.

[0014] Preferably, a sliding groove is provided on the inner side of the column, and the sliding block and the sliding groove form a sliding structure.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, the valve stem is protected by the shell, and the pressure sensor is used to alarm when it is not compressed, which can greatly improve the safety of the flange ball valve, make the internal structure of the valve not easily accessible directly, effectively increase the difficulty of theft, and effectively prevent illegal disassembly, theft or damage. When illegal operation occurs, a loud alarm can be issued to effectively attract attention.

[0017] 2. In the utility model, the hemisphere is driven to rotate by rotating the valve stem, allowing switching to another pipeline when a pipeline fails or needs maintenance, ensuring the continuous operation of the system, which can greatly increase the redundancy and reliability of the system, realize the circulation of different fluid media, and effectively enhance the flexibility and versatility of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top cover structure proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the valve seat assembly structure proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the alarm component proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the external structure proposed by the utility model.

[0024] In the figure: 1. valve seat; 2. first fixed plate; 3. first pipeline; 4. hemisphere; 5. fixed column; 6. valve stem; 7. shell; 8. second fixed plate; 9. expansion screw; 10. turntable; 11. square groove; 12. rivet groove; 13. second pipeline; 14. first thread; 15. thread groove; 16. annular groove; 17. connecting block; 18. trapezoidal block; 19. column; 20. fixed rod; 21. elastic sheet; 22. pressure block; 23. pressure sensor; 24. spring; 25. slider; 26. slide groove. DETAILED DESCRIPTION

[0025] The following will be combined with 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 of 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. Example 1

[0026] like Figure 1~Figure 3As shown, it includes a valve seat 1, both ends of the valve seat 1 are fixedly connected with a first fixing plate 2, one side of the first fixing plate 2 is fixedly connected with a first pipe 3, the inner wall of the valve seat 1 is movably connected with a hemisphere 4, the bottom end of the hemisphere 4 is fixedly connected with a turntable 10, the top of the hemisphere 4 is fixedly connected with a fixing column 5, the top of the fixing column 5 is provided with a valve stem 6, the upper part of the valve seat 1 is movably connected with a shell 7, both sides of the shell 7 are fixedly connected with a second fixing plate 8 by bolts, the upper and lower ends of the surface of the first fixing plate 2 are provided with expansion screws 9, and the inner side of the bottom end of the shell 7 is covered with the expansion screws 9, which further increases the difficulty of theft.

[0027] In this embodiment, a connection block 17 is fixedly connected to the inner top of the shell 7, and a trapezoidal block 18 is fixedly connected to the lower part of one end of the connection block 17. The shape of the connection block 17 is L-shaped.

[0028] In this embodiment, a square groove 11 is opened above one side of the first fixing plate 2 , the two sides of the shell 7 and the inner side of the square groove 11 form a sliding structure, and the lower ends of the two sides of the shell 7 and the square groove 11 form a snap-fit ​​structure.

[0029] In this embodiment, a riveting groove 12 is provided at the top of the valve seat 1 , and the trapezoidal block 18 and the riveting groove 12 form a mortise and tenon structure, and the trapezoidal block 18 and the riveting groove 12 form a sliding structure.

[0030] In this embodiment, an annular groove 16 is formed at the bottom end of the inner wall of the valve seat 1, and the rotating disk 10 and the annular groove 16 form a limiting structure. The shape of the rotating disk 10 is the same as that of the annular groove 16, and the rotating disk 10 and the annular groove 16 form a locking structure. Example 2

[0031] like Figure 4 , Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes

[0032] In this embodiment, the second pipe 13 is movably connected on both sides of the valve seat 1, and a first thread 14 is opened at one end of the second pipe 13. Thread grooves 15 are opened on both sides of the valve seat 1. The first thread 14 and the thread groove 15 form a threaded fit, and the inner wall of the second pipe 13 is the same size as the opening of the hemisphere 4.

[0033] In this embodiment, a column 19 is provided on the inner wall of the shell 7, one end of the column 19 is movably connected to a fixed rod 20, the other end of the column 19 is provided with an elastic sheet 21, one end of the elastic sheet 21 is fixedly connected to a pressure block 22, one end of the pressure block 22 is provided with a pressure sensor 23, one end of the fixed rod 20 is fixedly connected to a spring 24, both sides of the fixed rod 20 are fixedly connected to sliders 25, and the spring 24 plays a resetting role on the fixed rod 20.

[0034] In this embodiment, a slide groove 26 is provided on the inner side of the column 19 , and the slider 25 and the slide groove 26 form a sliding structure. The slide groove 26 does not penetrate one end of the column 19 , and the slider 25 serves to limit the fixing rod 20 .

[0035] Working principle: When using this device, the user rotates the valve stem 6 to drive the hemisphere 4 to rotate ninety degrees through the fixing column 5, and adjusts the pipeline that needs to flow. The turntable 10 at the bottom of the hemisphere 4 assists in rotation inside the annular groove 16, and at the same time prevents the position of the hemisphere 4 from shifting. After adjusting the hemisphere 4, the second pipeline 13 is connected to the valve seat 1, and the first thread 14 on the surface of the second pipeline 13 and the thread grooves 15 on both sides of the valve seat 1 form a threaded fit, and then the first fixing plate 2 is fixed to the two ends of the valve seat 1 by the expansion screw 9, and then the shell 7 is connected to the valve seat 1, and the trapezoidal block is moved by sliding the lower ends of the two sides of the shell 7 with the square groove 11. 18 is connected with the riveting groove 12 by mortise and tenon joints to prevent the shell 7 from being damaged by thieves, thereby further protecting the valve stem 6. After the shell 7 is connected to the valve seat 1, the two ends of the shell 7 are closed by the second fixing plate 8. The second fixing plate 8 pushes one end of the fixing rod 20 in and presses the column 19 at the same time. The column 19 drives the pressure block 22 to press the pressure sensor 23 through the elastic sheet 21. If a thief violently damages the shell 7 or the second fixing plate 8 at one end is removed, the pressure sensor 23 will activate the alarm to alarm. The sliding block 25 slides on the inner side of the sliding groove 26 to assist the fixing rod 20 to move, and the spring 24 can reset the fixing rod 20.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 tamper-proof hard-sealed forged steel flange ball valve, comprising a valve seat (1), characterized in that: The two ends of the valve seat (1) are fixedly connected to a first fixing plate (2), one side of the first fixing plate (2) is fixedly connected to a first pipe (3), the inner wall of the valve seat (1) is movably connected to a hemisphere (4), the bottom end of the hemisphere (4) is fixedly connected to a turntable (10), the top end of the hemisphere (4) is fixedly connected to a fixing column (5), the top end of the fixing column (5) is provided with a valve stem (6), the upper part of the valve seat (1) is movably connected to a shell (7), the two sides of the shell (7) are fixedly connected to a second fixing plate (8) by bolts, and expansion screws (9) are provided at the upper and lower ends of the surface of the first fixing plate (2).

2. The anti-tampering and theft hard-sealed forged steel flange ball valve according to claim 1 is characterized in that: A connection block (17) is fixedly connected to the inner top end of the shell (7), and a trapezoidal block (18) is fixedly connected to the lower end of one end of the connection block (17).

3. The anti-tampering and theft-proof hard-sealed forged steel flange ball valve according to claim 1 is characterized in that: A square groove (11) is provided above one side of the first fixing plate (2), and two sides of the housing (7) and the inner side of the square groove (11) form a sliding structure.

4. The anti-tampering and theft-proof hard-sealed forged steel flange ball valve according to claim 2 is characterized in that: A riveting groove (12) is provided at the top end of the valve seat (1), and the trapezoidal block (18) and the riveting groove (12) form a mortise and tenon structure.

5. The anti-tampering and theft-proof hard-sealed forged steel flange ball valve according to claim 1 is characterized in that: An annular groove (16) is provided at the bottom end of the inner wall of the valve seat (1), and the rotating disk (10) and the annular groove (16) form a limiting structure.

6. The anti-tampering and theft-proof hard-sealed forged steel flange ball valve according to claim 1 is characterized in that: The valve seat (1) has a second pipe (13) movably connected to both sides thereof, one end of the second pipe (13) is provided with a first thread (14), and the valve seat (1) has a thread groove (15) on both sides thereof, the first thread (14) and the thread groove (15) forming a threaded fit.

7. The anti-tampering and theft-proof hard-sealed forged steel flange ball valve according to claim 1 is characterized in that: The inner wall of the housing (7) is provided with a column (19), one end of the column (19) is movably connected to a fixing rod (20), the other end of the column (19) is provided with an elastic sheet (21), one end of the elastic sheet (21) is fixedly connected to a pressure block (22), one end of the pressure block (22) is provided with a pressure sensor (23), one end of the fixing rod (20) is fixedly connected to a spring (24), and both sides of the fixing rod (20) are fixedly connected to sliders (25).

8. The anti-tampering and theft-proof hard-sealed forged steel flange ball valve according to claim 7 is characterized in that: A sliding groove (26) is provided on the inner side of the column (19), and the sliding block (25) and the sliding groove (26) form a sliding structure.

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