Special gas pipeline control valve

Abstract

The utility model discloses a special gas pipeline control valve, which belongs to the technical field of pipeline control valves and comprises a valve main body, connectors are arranged on two sides of the valve main body, an external pipeline body is arranged at the other ends of the connectors, and a valve handle lever is arranged in the valve main body. The automatic valve opening mechanism is arranged at the upper end of the valve handle rod, the external pipeline body is fixedly connected with the connecting port through the external pipeline connecting and fixing mechanism, the motor is used for driving the incomplete gear to be meshed with the large gear, automatic rotation of the valve handle rod is achieved, and the automatic valve opening mechanism is arranged at the upper end of the valve handle rod. Therefore, automatic opening and closing of the valve are completed, the operation convenience and automation degree are greatly improved, meanwhile, the limiting assembly can accurately control the opening angle of the valve, excessive opening or closing is avoided, the stability and safety of the valve are ensured, and the problems that a traditional valve is tedious in manual operation and cannot be accurately controlled are effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline control valve technology, and specifically relates to a special gas pipeline control valve. Background Technology

[0002] Pipeline control valves are adjustable devices used to change parameters such as the flow direction, flow rate, and pressure of the medium in a pipeline. Valves in gas systems are mainly used to control the flow and pressure of various gases to ensure the stability and reliability of the entire system. At the same time, control valves can also control the delivery of gases in special gas pipelines.

[0003] While existing pipeline control valves enable the use of special gas pipeline control valves, they cannot limit the valve's opening size, thus failing to guarantee the stability of the valve's opening size. Secondly, the connection between the valve and the external pipeline is relatively poor during use, and the reliability of the fixed valve is not good. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a special gas pipeline control valve, which features convenient automatic control of the valve opening size and improved sealing and reliability between the valve and the external pipeline.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special gas pipeline control valve, comprising a valve body, connection ports on both sides of the valve body, an external pipeline body at the other end of the connection port, a valve handle rod inside the valve body, an automatic valve opening mechanism at the upper end of the valve handle rod, and a fixed connection between the external pipeline body and the connection port via an external pipeline connection and fixing mechanism.

[0006] Preferably, the automatic valve opening mechanism includes a mounting box, a support rod, a large gear, a motor, an incomplete gear, a drive shaft, and a limiting component. The upper end of the valve body is provided with a support rod, and the upper end of the support rod is provided with a mounting box. The upper surface of the valve handle rod is provided with a large gear inside the mounting box. The lower side of the mounting box is provided with a motor, and the output end of the motor is provided with a drive shaft. The surface of the drive shaft is provided with an incomplete gear that meshes with the large gear. The upper end of the valve handle rod is provided with a limiting component.

[0007] Preferably, the limiting assembly includes a fixed rod, a limiting plate, a central rod, a spring, a fixing hole, and a lifting plate. The upper end of the valve handle rod is provided with a central rod, the upper end of the central rod is provided with a limiting plate, the surface of the central rod is slidably connected to the lifting plate, the other side of the lifting plate is provided with a fixed rod, the surface of the central rod is fitted with a spring at the upper end of the lifting plate, and the upper end of the mounting box is provided with multiple sets of fixing holes.

[0008] Preferably, the fixed rod and the lifting plate are connected by a thread, and a handle is provided at the upper end of the fixed rod.

[0009] Preferably, the external pipe connection and fixing mechanism includes bolts, clamping components, sealing rings, sealing grooves, and flanges. A flange is provided on one side of the external pipe body. The flange is fixedly connected to the connection port by bolts. A sealing ring is connected between the flange and the connection port. Sealing grooves corresponding to the sealing rings are opened on the side of the flange and the side of the connection port. Clamping components are provided at the side edges of the flange and the connection port.

[0010] Preferably, the clamping assembly includes a circular groove, a U-shaped seat, a threaded rod, a knob, and a clamping block. A U-shaped seat is provided at the side edge of the flange and the connection port. A threaded rod is threadedly connected to the inside of the U-shaped seat. A knob is provided at one end of the threaded rod, and a clamping block is provided at the other end of the threaded rod. A circular groove corresponding to the clamping block is opened inside the U-shaped seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model features an automatic valve opening mechanism that uses a motor to drive an incomplete gear to mesh with a large gear, thereby enabling the automatic rotation of the valve handle and completing the automatic opening and closing of the valve. This greatly improves the convenience and automation of operation. At the same time, the limit component can precisely control the valve opening angle, avoiding over-opening or over-closing and ensuring the stability and safety of the valve. This effectively solves the problems of cumbersome manual operation and inaccurate control of traditional valves.

[0013] 2. This utility model significantly enhances the sealing performance between the valve and the external pipeline by setting up an external pipeline connection and fixing mechanism, using a flange and bolt for fixing connection, and with the design of the sealing ring embedded in the sealing groove, effectively preventing gas leakage. In addition, the clamping component further strengthens the pipeline connection through the cooperation of the knob, threaded rod and clamping block, ensuring the reliability of the connection, and solving the problems of poor sealing performance and unreliable fixing of external pipeline connections in the prior art. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a three-dimensional sectional view of the automatic valve opening mechanism of this utility model;

[0016] Figure 3 This is a three-dimensional sectional view of the limiting component of this utility model;

[0017] Figure 4 This is a perspective view of the external pipe connection and fixing mechanism of this utility model;

[0018] Figure 5 This is a perspective view of the clamping assembly of this utility model;

[0019] In the diagram: 1. Valve body; 2. Connection port; 3. Valve handle rod; 4. Automatic valve opening mechanism; 41. Mounting box; 42. Support rod; 43. Large gear; 44. Motor; 45. Incomplete gear; 46. Drive shaft; 47. Limiting assembly; 471. Fixing rod; 472. Rotary handle; 473. Limiting plate; 474. Center rod; 475. Spring; 476. Fixing hole; 477. Lifting plate; 5. External pipe connection and fixing mechanism; 51. Bolt; 52. Clamping assembly; 521. Circular groove; 522. U-shaped seat; 523. Threaded rod; 524. Knob; 525. Clamping block; 53. Sealing ring; 54. Sealing groove; 55. Flange; 6. External pipe body. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figure 1-5 The present invention provides the following technical solution: a special gas pipeline control valve, including a valve body 1, connection ports 2 on both sides of the valve body 1, an external pipeline body 6 at the other end of the connection port 2, a valve handle rod 3 inside the valve body 1, an automatic valve opening mechanism 4 at the upper end of the valve handle rod 3, and the external pipeline body 6 and the connection port 2 are fixedly connected by an external pipeline connection and fixing mechanism 5.

[0023] Specifically, the automatic valve opening mechanism 4 includes a mounting box 41, a support rod 42, a large gear 43, a motor 44, a partial gear 45, a drive shaft 46, and a limiting component 47. The upper end of the valve body 1 is provided with the support rod 42, and the upper end of the support rod 42 is provided with the mounting box 41. The upper surface of the valve handle rod 3, located inside the mounting box 41, is provided with the large gear 43. The lower side of the mounting box 41 is provided with the motor 44, and the output end of the motor 44 is provided with the drive shaft 46. The surface of the drive shaft 46 is provided with a partial gear 45 that meshes with the large gear 43. The upper end of the valve handle rod 3 is provided with the limiting component 47.

[0024] By adopting the above technical solution, the motor 44 drives the drive shaft 46 to rotate, and the incomplete gear 45 meshes with the large gear 43, thereby driving the valve handle rod 3 to rotate, realizing the automatic opening and closing of the valve, and improving the convenience and automation of operation.

[0025] Specifically, the limiting component 47 includes a fixed rod 471, a limiting plate 473, a central rod 474, a spring 475, a fixing hole 476, and a lifting plate 477. The upper end of the valve handle rod 3 is provided with a central rod 474, and the upper end of the central rod 474 is provided with a limiting plate 473. The surface of the central rod 474 is slidably connected to the lifting plate 477, and the other side of the lifting plate 477 is provided with a fixed rod 471. The surface of the central rod 474 is fitted with a spring 475 at the upper end of the lifting plate 477. The upper end of the mounting box 41 has multiple sets of fixing holes 476. By adopting the above technical solution, the limiting plate 473 can be positioned in the fixing hole 476 through the cooperation of the lifting plate 477 and the spring 475, thereby limiting the rotation angle of the valve handle rod 3, ensuring that the valve is opened or closed to the predetermined position, avoiding over-opening or closing, and improving the stability and safety of the valve.

[0026] Specifically, the fixed rod 471 and the lifting plate 477 are connected by a thread. The upper end of the fixed rod 471 is provided with a handle 472. By adopting the above technical solution, the operator can rotate the fixed rod 471 through the handle 472 to adjust the position of the fixed rod 471 and avoid affecting the automatic opening and closing of the valve.

[0027] In this embodiment, the valve opening angle is first adjusted as needed by adjusting the fixing rod 471 using the handle 472, causing the fixing rod 471 to move out of the fixing hole 476. Then, the motor 44 is started, driving the incomplete gear 45 to rotate. Through meshing with the large gear 43, the motor drives the valve handle rod 3 to rotate, automatically opening or closing the valve. After adjustment, the fixing rod 471 is lowered by rotating the handle 472. At this time, with the help of the spring 475, the fixing rod 471 can be inserted into the designated fixing hole 476.

[0028] Example 2

[0029] The difference between this embodiment and embodiment 1 is that the external pipe connection and fixing mechanism 5 includes bolts 51, clamping components 52, sealing rings 53, sealing grooves 54, and flanges 55. A flange 55 is provided on one side of the external pipe body 6. The flange 55 is fixedly connected to the connection port 2 by bolts 51. A sealing ring 53 is connected between the flange 55 and the connection port 2. Sealing grooves 54 corresponding to the sealing rings 53 are opened on the side of the flange 55 and the side of the connection port 2. Clamping components 52 are provided at the side edges of the flange 55 and the connection port 2. By adopting the above technical solution, the flange 55 and the connection port 2 are fixedly connected by bolts 51. The sealing rings 53 are embedded in the sealing grooves 54 to ensure the sealing between the external pipe and the valve body 1 and prevent gas leakage. At the same time, the clamping components 52 further enhance the firmness of the connection and improve the stability and reliability of the entire device.

[0030] Specifically, the clamping assembly 52 includes a circular groove 521, a U-shaped seat 522, a threaded rod 523, a knob 524, and a clamping block 525. A U-shaped seat 522 is provided at the side edge of the flange 55 and the connection port 2. A threaded rod 523 is threadedly connected inside the U-shaped seat 522. A knob 524 is provided at one end of the threaded rod 523, and a clamping block 525 is provided at the other end. A circular groove 521 corresponding to the clamping block 525 is formed inside the U-shaped seat 522.

[0031] By adopting the above technical solution, rotating the knob 524 causes the threaded rod 523 to move the clamp 525 in the circular groove 521. The clamp 525 can tightly clamp the edge of the external pipe body 6 and the connection port 2, further fixing the pipe connection, preventing the pipe from loosening or falling off, ensuring the reliability of the connection, and facilitating installation and disassembly.

[0032] In this embodiment, the external pipe body 6 is aligned with the connection port 2 of the valve body 1, and the flange 55 is aligned with the flange of the connection port 2. The two are then fixedly connected by bolts 51. During the connection process, the sealing ring 53 is embedded in the sealing groove 54 to ensure sealing. Then, the knob 524 is rotated, and the threaded rod 523 drives the clamping block 525 to clamp the edges of the external pipe body 6 and the connection port 2, further fixing the pipe connection. Through this double fixing method, the connection between the external pipe and the valve body 1 is ensured to be firm and reliable, effectively preventing gas leakage and ensuring the safe operation of the special gas pipeline system.

[0033] The working principle and usage process of this utility model: When using this utility model, first adjust the opening angle of the valve as needed, and adjust the fixing rod 471 by turning the handle 472 so that the fixing rod 471 moves out of the fixing hole 476. Then, start the motor 44. The motor 44 drives the incomplete gear 45 to rotate, which in turn drives the valve handle rod 3 to rotate through meshing with the large gear 43. The valve automatically opens or closes. After adjustment, rotate the handle 472 to drive the fixing rod 471 to descend. At this time, with the help of the spring 475, the fixing rod 471 can be inserted into the designated fixing hole 476. Align the external pipe body 6 with the connection port 2 of the valve body 1. After aligning the flange 55 with the flange of the connection port 2, fix the two together with the bolts 51. During the connection process, the sealing ring 53 is embedded in the sealing groove 54 to ensure sealing. Then, rotate the knob 524. The threaded rod 523 drives the clamping block 525 to clamp the edge of the external pipe body 6 and the connection port 2, further fixing the pipe connection. Through this double fixing method, the connection between the external pipe and the valve body 1 is ensured to be firm and reliable, effectively preventing gas leakage and ensuring the safe operation of the special gas pipeline system.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special gas pipeline control valve, comprising a valve body (1), wherein connection ports (2) are provided on both sides of the valve body (1), and an external pipeline body (6) is provided at the other end of the connection port (2), and a valve handle rod (3) is provided inside the valve body (1), characterized in that: The upper end of the valve handle rod (3) is provided with an automatic valve opening mechanism (4), and the external pipe body (6) and the connection port (2) are fixedly connected by an external pipe connection fixing mechanism (5).

2. The special gas pipeline control valve according to claim 1, characterized in that: The automatic valve opening mechanism (4) includes a mounting box (41), a support rod (42), a large gear (43), a motor (44), an incomplete gear (45), a drive shaft (46), and a limiting component (47). The upper end of the valve body (1) is provided with a support rod (42), and the upper end of the support rod (42) is provided with a mounting box (41). The upper surface of the valve handle rod (3) is located inside the mounting box (41) and a large gear (43) is provided. The lower side of the mounting box (41) is provided with a motor (44), and the output end of the motor (44) is provided with a drive shaft (46). The surface of the drive shaft (46) is provided with an incomplete gear (45) that meshes with the large gear (43). The upper end of the valve handle rod (3) is provided with a limiting component (47).

3. A special gas pipeline control valve according to claim 2, characterized in that: The limiting component (47) includes a fixed rod (471), a limiting plate (473), a central rod (474), a spring (475), a fixing hole (476), and a lifting plate (477). The upper end of the valve handle rod (3) is provided with a central rod (474), the upper end of the central rod (474) is provided with a limiting plate (473), the surface of the central rod (474) is slidably connected to the lifting plate (477), the other side of the lifting plate (477) is provided with a fixed rod (471), the surface of the central rod (474) is located at the upper end of the lifting plate (477) and a spring (475) is sleeved on it. The upper end of the mounting box (41) has multiple sets of fixing holes (476).

4. A special gas pipeline control valve according to claim 3, characterized in that: The fixed rod (471) and the lifting plate (477) are connected by a thread, and a handle (472) is provided at the upper end of the fixed rod (471).

5. A special gas pipeline control valve according to claim 1, characterized in that: The external pipe connection and fixing mechanism (5) includes bolts (51), clamping components (52), sealing rings (53), sealing grooves (54) and flanges (55). A flange (55) is provided on one side of the external pipe body (6). The flange (55) is fixedly connected to the connection port (2) by bolts (51). A sealing ring (53) is connected between the flange (55) and the connection port (2). A sealing groove (54) corresponding to the sealing ring (53) is opened on the side of the flange (55) and the side of the connection port (2). A clamping component (52) is provided at the side edge of the flange (55) and the connection port (2).

6. A special gas pipeline control valve according to claim 5, characterized in that: The clamping assembly (52) includes a circular groove (521), a U-shaped seat (522), a threaded rod (523), a knob (524), and a clamping block (525). A U-shaped seat (522) is provided at the side edge of the flange (55) and the connection port (2). The threaded rod (523) is threadedly connected inside the U-shaped seat (522). A knob (524) is provided at one end of the threaded rod (523), and a clamping block (525) is provided at the other end of the threaded rod (523). A circular groove (521) corresponding to the clamping block (525) is opened inside the U-shaped seat (522).

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