An adjustable gate valve

Abstract

The utility model discloses an adjustable gate valve, including the valve body, the upper end of valve body is equipped with the valve cover, and the upper end of valve cover is equipped with the support cylinder, and the inner wall of support cylinder upper end is rotatably connected with the internal thread adapter block, and the valve seat inside the valve body middle part is slidably connected with the valve plate, and the internal thread of internal thread adapter block is connected with the threaded rod, and the lower extreme of threaded rod is equipped with the connecting block, and the lower extreme of connecting block is fixedly connected with the upper end of valve plate, and still include automatic adjusting mechanism, automatic adjusting mechanism: it includes support frame, gear no.

Description

Technical Field

[0001] This utility model relates to the field of adjustable gate valve technology, specifically an adjustable gate valve. Background Technology

[0002] A gate valve is a common type of shut-off valve, primarily used in pipelines to cut off or connect fluids, rather than to regulate flow. Its core component is a gate perpendicular to the fluid direction, which opens and closes through a lifting motion. The valve body is a shell housing the fluid and internal structures. The gate is a flat or wedge-shaped metal plate that blocks or opens the flow path during lifting or lowering. The valve stem connects the handwheel to the gate, transmitting power. The valve seat has an annular surface that seals against the gate, ensuring a tight seal when closed. An adjustable gate valve is a type of valve where the flow rate or pressure can be controlled by adjusting the opening of the gate. The valve body is typically designed for straight-through flow to reduce flow resistance.

[0003] In some existing adjustable gate valves, when it is necessary to adjust the gate valve, the handwheel is turned manually. The handwheel drives the valve stem to rotate, and the valve stem will drive the valve plate to rise or fall for adjustment.

[0004] Existing adjustable gate valves of this type have the following problems: when using adjustable gate valves, manual operation of the handwheel is labor-intensive, inefficient, and inaccurate, making them inconvenient to use. Therefore, we propose an adjustable gate valve. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adjustable gate valve. When using the adjustable gate valve, the combination of manual and automatic modes will reduce the labor intensity of manual labor, improve efficiency and accuracy, and make it easy to use, thus effectively solving the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable gate valve, comprising a valve body, a valve cover at the upper end of the valve body, a support cylinder at the upper end of the valve cover, an internally threaded adapter block rotatably connected to the inner wall of the upper end of the support cylinder, a valve plate slidably connected inside the valve seat in the middle of the valve body, a threaded rod internally threadedly connected to the internal threaded adapter block, a connecting block at the lower end of the threaded rod, and a fixed connection between the lower end of the connecting block and the upper end of the valve plate, and also including an automatic adjustment mechanism;

[0007] Automatic adjustment mechanism: It includes a support frame, gear one, gear two, a rotating shaft, and a circular cover. The support frame is fixedly sleeved on the outer surface of the upper end of the valve body. The rotating shaft is rotatably connected to the top wall of the support frame. Gear two is fixedly connected to the lower end of the rotating shaft. Gear one is fixedly sleeved on the outer surface of the upper end of the internal threaded adapter block. Gear one and gear two are meshed together. The circular cover is set on the top wall of the support frame. Gear one and gear two are both located inside the circular cover. When using the adjustable gate valve, the combination of manual and automatic modes will reduce the labor intensity of manual labor, improve efficiency and accuracy, and facilitate use.

[0008] Furthermore, a microcontroller is provided on the right side of the top wall of the support frame. The input terminal of the microcontroller is electrically connected to an external power source to provide electrical connections for various electrical appliances.

[0009] Furthermore, the automatic adjustment mechanism also includes a circular column and an infrared locator. The circular column is located in the middle of the upper end of the support frame, and the infrared locator is located at the upper end of the circular column. The infrared locator is bidirectionally electrically connected to the microcontroller to provide distance monitoring.

[0010] Furthermore, the automatic adjustment mechanism also includes a motor. A motor is provided on the right side of the upper end of the support frame. The lower end of the motor's output shaft is fixedly connected to the upper end of the rotating shaft. The output end of the motor is electrically connected to the output end of the microcontroller to provide adjustment drive.

[0011] Furthermore, a signal transceiver is provided on the left side of the top wall of the support frame. The signal transceiver is bidirectionally electrically connected to the microcontroller to facilitate signal transmission.

[0012] Furthermore, a circular cover is provided at the center of the top wall of the support frame, and a second rubber sealing ring is provided between the outer surface of the upper end of the support cylinder and the inner wall of the circular cover. A first rubber sealing ring is provided on both the left and right inner walls of the valve seat to provide a seal.

[0013] Furthermore, a handwheel is fixedly fitted on the outer surface of the internal thread adapter block for easy adjustment.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This adjustable gate valve has the following advantages:

[0015] Driven by the motor, the internal threaded adapter block rotates through the rotating shaft, gear two, and meshing gear one. The internal threaded adapter block moves the valve plate up and down through the threaded rod and connecting block, achieving automatic adjustment. The distance between the infrared positioner and the upper end of the threaded rod can be monitored to precisely adjust the opening and closing degree of the valve plate. When using the adjustable gate valve, the combination of manual and automatic modes reduces the labor intensity of manual labor, improves efficiency and accuracy, and facilitates use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the lower side cross-sectional structure of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 5 This is an enlarged structural diagram of section B of the present invention.

[0021] In the diagram: 1 Valve body, 2 Valve plate, 3 Rubber sealing ring I, 4 Valve cover, 5 Connecting block, 6 Threaded rod, 7 Support cylinder, 8 Internal threaded adapter block, 9 Automatic adjustment mechanism, 91 Support frame, 92 Gear I, 93 Gear II, 94 Rotating shaft, 95 Motor, 96 Circular column, 97 Infrared positioner, 98 Circular cover, 10 Rubber sealing ring II, 11 Circular cover, 12 Handwheel, 13 Signal transceiver, 14 Microcontroller. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5This embodiment provides a technical solution: an adjustable gate valve, including a valve body 1, a valve cover 4 at the upper end of the valve body 1, a support cylinder 7 at the upper end of the valve cover 4, an internally threaded adapter block 8 rotatably connected to the inner wall of the upper end of the support cylinder 7, a valve plate 2 slidably connected inside the valve seat in the middle of the valve body 1, a threaded rod 6 internally threadedly connected to the internal threaded adapter block 8, a connecting block 5 at the lower end of the threaded rod 6, and a fixed connection between the lower end of the connecting block 5 and the upper end of the valve plate 2. It also includes an automatic adjustment mechanism 9, a microcontroller 14 on the right side of the top wall of the support frame 91, the input end of the microcontroller 14 being electrically connected to an external power source, a circular cover 11 at the center of the top wall of the support frame 91, a rubber sealing ring 10 between the outer surface of the upper end of the support cylinder 7 and the inner wall of the circular cover 11, and rubber sealing rings 1 on both the left and right inner walls of the valve seat. 3. (The valve seat has flow ports on its left and right inner walls. The rubber sealing ring 3 is a circular rubber sealing ring. The rubber sealing ring 3 is located at the flow port and is coaxial with the flow port. When the valve plate 2 is completely aligned with the flow port, the rubber sealing ring 3 can completely contact the adjacent edge of the valve plate 2, thus enhancing the sealing performance.) The outer surface of the internal thread adapter block 8 is fixedly fitted with a handwheel 12. When using the adjustable gate valve, the external pipeline is connected through the connecting flanges at both ends. By rotating the handwheel 12, the handwheel 12 drives the internal thread adapter block 8 to rotate. The internal thread adapter block 8, through the threaded engagement with the threaded rod 6, drives the valve plate 2 to move up and down within the gap of the valve seat through the connecting block 5, thereby realizing the opening or closing of the valve. The rubber sealing ring 3 can enhance the sealing performance and prevent media leakage.

[0024] Automatic adjustment mechanism 9 includes a support frame 91, gear 1 92, gear 2 93, a rotating shaft 94, and a circular cover 98. The support frame 91 is fixedly sleeved on the outer surface of the upper end of the valve body 1. The rotating shaft 94 is rotatably connected to the top wall of the support frame 91. Gear 2 93 is fixedly connected to the lower end of the rotating shaft 94. Gear 1 92 is fixedly sleeved on the outer surface of the upper end of the internal threaded adapter block 8. Gear 1 92 and gear 2 93 are meshed. The circular cover 98 is located on the top wall of the support frame 91. Gear 1 92 and gear 2 93 are both located inside the circular cover 98 (gear 1 92 and gear 2 93 are enclosed by the circular cover 98 to prevent dust and impurities from entering and affecting the transmission accuracy). The automatic adjustment mechanism 9 also includes a circular column 96 and an infrared positioner 97. The upper end of the support frame 91... A circular column 96 is located in the middle of the valve plate 2. An infrared positioner 97 is located at the upper end of the circular column 96. The infrared positioner 97 is bidirectionally electrically connected to the microcontroller 14. (When the valve plate 2 is closed, the threaded rod 6 is in its initial state. The distance between the upper end of the threaded rod 6 and the detection end of the infrared positioner 97 is set as 'a'. During the rotation and ascent of the threaded rod 6, the infrared positioner 97 measures the distance between itself and the upper end of the threaded rod 6 in real time and transmits the detection data to the microcontroller 14. For example, if the detection data is 'b', and the desired opening degree of the valve plate 2 is 'c', then c=ab. Therefore, the required opening degree data is transmitted to the microcontroller 14 in advance. Then, the microcontroller 14, based on the distance data between itself and the threaded rod 6 fed back by the infrared positioner 97 and the calculation formula c=ab,...) The automatic adjustment mechanism 9, which can adjust the opening degree of valve plate 2, also includes a motor 95. The motor 95 is located on the right side of the upper end of the support frame 91. The lower end of the output shaft of the motor 95 is fixedly connected to the upper end of the rotating shaft 94. The output end of the motor 95 is electrically connected to the output end of the microcontroller 14. A signal transceiver 13 is located on the left side of the top wall of the support frame 91. The signal transceiver 13 is bidirectionally electrically connected to the microcontroller 14. When automatic adjustment is required, the command is remotely transmitted to the signal transceiver 13 via wireless signal. The signal transceiver 13 transmits the command to the microcontroller 14. The microcontroller 14 integrates the information, and the motor 95 operates. The output shaft of the motor 95 drives the rotating shaft 94 to rotate, and the rotating shaft 94 drives the gear 2 93 to rotate. The gear 2 93, through the meshing gear 1 92, drives... The internal threaded adapter block 8 rotates, and this rotation, via the threaded rod 6, causes the connecting block 5 to move the valve plate 2 up and down, achieving automatic adjustment. The opening degree can be adjusted according to received commands. An infrared positioner 97 is mounted on the upper end of the circular column 96, which can detect the distance between the upper end of the threaded rod 6 and the probe of the infrared positioner 97 in real time and feeds the position signal back to the microcontroller 14. The microcontroller 14 integrates the information; the distance between the upper end of the threaded rod 6 and the probe of the infrared positioner 97 is the opening degree of the valve plate 2. In the event of a power failure, the internal threaded adapter block 8 can be manually rotated directly via the handwheel 12. At this time, gear two 93 drives gear one 92 to rotate freely. Since the motor 95 is not running, there is no locking constraint, which will not affect manual operation. During automatic adjustment...The motor 95 drives the internal threaded adapter block 8, enabling switching between manual and automatic modes.

[0025] The working principle of the adjustable gate valve provided by this utility model is as follows: When using the adjustable gate valve, external pipelines are connected via flanges at both ends. Rotating the handwheel 12 causes the internal threaded adapter block 8 to rotate. The internal threaded adapter block 8, through its threaded engagement with the threaded rod 6, drives the valve plate 2 to move up and down within the gap of the valve seat via the connecting block 5, thus opening or closing the valve. The rubber sealing ring 3 between the valve plate 2 and the valve seat enhances the sealing performance and prevents media leakage. (The scale line of the handwheel 12 and the pointer of the support frame 91 provide a direct indication of the rotation angle. The rotation angle of the handwheel 12 is directly proportional to the lifting height of the valve plate 2. Based on this linear proportionality, the opening and closing degree of the valve plate 2 can be directly controlled.) When automatic adjustment is required, the command is remotely transmitted to the signal transceiver 13 via wireless signal. The signal transceiver 13 transmits the command to the microcontroller 14. The microcontroller 14 integrates the information, and the motor 95 operates. The output shaft of the motor 95 drives the rotating shaft. Rotation of shaft 94 drives gear 2 93 to rotate. Gear 2 93, through meshing gear 1 92, drives internal thread adapter block 8 to rotate. The rotation of internal thread adapter block 8, through threaded rod 6, causes connecting block 5 to move valve plate 2 up and down, achieving automatic adjustment. The opening degree can be adjusted according to received instructions. Infrared positioner 97 is installed on the upper end of circular column 96, which can detect the distance between the upper end of threaded rod 6 and the probe of infrared positioner 97 in real time and feed the position signal back to microcontroller 14. Microcontroller 14 integrates the information. The distance between the upper end of threaded rod 6 and the probe of infrared positioner 97 is the opening degree of valve plate 2. In the event of a power failure, internal thread adapter block 8 can be manually rotated directly through handwheel 12. At this time, gear 2 93 drives gear 1 92 to rotate freely. When motor 95 is not running, there is no locking constraint, which will not affect manual operation. During automatic adjustment, motor 95 operates to drive internal thread adapter block 8, realizing the switching between manual and automatic modes.

[0026] It is worth noting that in the above embodiments, the motor 95, infrared locator 97, and signal transceiver 13 are disclosed. The motor 95 can be MSMD042G1U, the infrared locator 97 can be E3Z-LS63, and the signal transceiver 13 can be RC552-GE-S1. The microcontroller 14 controls the operation of the motor 95, infrared locator 97, and signal transceiver 13 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable gate valve, comprising a valve body (1), wherein a valve cover (4) is provided at the upper end of the valve body (1), a support cylinder (7) is provided at the upper end of the valve cover (4), an internally threaded adapter block (8) is rotatably connected to the inner wall of the upper end of the support cylinder (7), a valve plate (2) is slidably connected to the valve seat in the middle of the valve body (1), a threaded rod (6) is internally threadedly connected to the internal threaded adapter block (8), a connecting block (5) is provided at the lower end of the threaded rod (6), and the lower end of the connecting block (5) is fixedly connected to the upper end of the valve plate (2), characterized in that: It also includes an automatic adjustment mechanism (9); Automatic adjustment mechanism (9): It includes a support frame (91), gear one (92), gear two (93), rotating shaft (94) and circular cover (98). The support frame (91) is fixedly sleeved on the outer surface of the upper end of the valve body (1). The rotating shaft (94) is rotatably connected to the top wall of the support frame (91). Gear two (93) is fixedly connected to the lower end of the rotating shaft (94). Gear one (92) is fixedly sleeved on the outer surface of the upper end of the internal thread adapter block (8). Gear one (92) and gear two (93) are meshed and connected. The circular cover (98) is set on the top wall of the support frame (91). Gear one (92) and gear two (93) are both located inside the circular cover (98).

2. The adjustable gate valve according to claim 1, characterized in that: A microcontroller (14) is provided on the right side of the top wall of the support frame (91), and the input terminal of the microcontroller (14) is electrically connected to an external power source.

3. An adjustable gate valve according to claim 2, characterized in that: The automatic adjustment mechanism (9) also includes a circular column (96) and an infrared locator (97). The circular column (96) is located in the middle of the upper end of the support frame (91), and the infrared locator (97) is located at the upper end of the circular column (96). The infrared locator (97) is bidirectionally electrically connected to the microcontroller (14).

4. An adjustable gate valve according to claim 3, characterized in that: The automatic adjustment mechanism (9) also includes a motor (95). The motor (95) is located on the right side of the upper end of the support frame (91). The lower end of the output shaft of the motor (95) is fixedly connected to the upper end of the rotating shaft (94). The output end of the motor (95) is electrically connected to the output end of the microcontroller (14).

5. An adjustable gate valve according to claim 4, characterized in that: A signal transceiver (13) is provided on the left side of the top wall of the support frame (91), and the signal transceiver (13) is bidirectionally electrically connected to the microcontroller (14).

6. An adjustable gate valve according to claim 4, characterized in that: The support frame (91) has a circular cover (11) at the center of its top wall. A rubber sealing ring (10) is provided between the outer surface of the upper end of the support cylinder (7) and the inner wall of the circular cover (11). A rubber sealing ring (3) is provided on the left and right inner walls of the valve seat.

7. An adjustable gate valve according to claim 1, characterized in that: A handwheel (12) is fixedly sleeved on the outer surface of the internal thread adapter block (8).

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