Valve actuator capable of adjusting angle of air cylinder at will
By setting air inlet and exhaust port on the cylinder upper cover of the micro diaphragm valve and adding a pneumatic valve cover to adjust the position, the problem of inconsistent air inlet and outlet positions after the cylinder assembly of the micro diaphragm valve is solved, and more convenient installation and air supply pipe connection is achieved.
Patent Information
- Application Number
- CN202420121652.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-01-17
AI Technical Summary
After the cylinder of the micro diaphragm valve is assembled, the positions of the air inlet and outlet are not uniform, which makes it difficult to connect the air supply pipe.
A valve actuator with arbitrarily adjustable cylinder angle is designed. By setting an air inlet and exhaust port on the upper cover of the cylinder and adding a pneumatic valve cover, it is rotatably matched with the lower cover of the cylinder to adjust the positions of the air inlet and outlet port.
The unified position of the air inlet and outlet is achieved, and the installation is more convenient, avoiding the problem of difficulty in connecting the air supply pipe.
Smart Images
Figure CN222687429U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diaphragm valves, in particular to a valve actuator with an air cylinder whose angle can be adjusted arbitrarily. Background Art
[0002] In order to effectively control the overall dimensions of the micro diaphragm valve, threaded connections are usually used between the upper and lower covers of the cylinder. However, due to the different starting positions of the mating threads during thread processing, the air inlet position of each valve is not uniform after the cylinder is assembled, making it inconvenient to connect to pneumatic equipment. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a valve actuator with arbitrarily adjustable cylinder angle, comprising a cylinder upper cover, a pneumatic valve cover and a cylinder lower cover, the cylinder upper cover is provided with an air inlet and an exhaust port, the pneumatic valve cover is installed between the cylinder upper cover and the cylinder lower cover, the pneumatic valve cover is fixedly connected to the cylinder upper cover, and the pneumatic valve cover is connected to the cylinder lower cover and can rotate along the axis relative to the cylinder lower cover.
[0004] Preferably, a mounting groove is provided on the side wall of the cylinder lower cover, a retaining ring is provided in the mounting groove, a connecting hole for the cylinder lower cover to extend into is provided at the bottom of the pneumatic valve cover, a recessed platform cooperating with the retaining ring is provided at the upper part of the connecting hole, a valve cover pressure plate is provided between the pneumatic valve cover and the cylinder upper cover, a limiting step is provided on the cylinder lower cover, the limiting step is located above the mounting groove, a pressing portion is provided at the bottom of the cylinder upper cover, the valve cover pressure plate is provided between the pressing portion and the limiting step, and the cylinder lower cover is pushed by the pressure of the pressing portion so that the retaining ring is stuck on the recessed platform.
[0005] Preferably, a positioning groove is provided on the pneumatic valve cover, and a positioning portion extending downward is provided at the bottom of the valve cover pressure plate, and the shape of the positioning portion is adapted to the positioning groove.
[0006] Preferably, the cylinder upper cover is connected to the pneumatic valve cover via threads.
[0007] Preferably, the pressing portion is annular and has a diameter smaller than the diameter of the cylinder cover, so as to form an inwardly recessed limiting portion between the cylinder cover and the side wall of the pressing portion. The outside of the pressing portion is provided with an external thread, and the top of the pneumatic valve cover is provided with a circular groove, and the inside of the circular groove is provided with an internal thread. The internal thread cooperates with the external thread to fix the pneumatic valve cover to the cylinder cover.
[0008] Preferably, a receiving groove for the pressing part to extend into is provided on the top of the valve cover pressing plate.
[0009] Preferably, the accommodating groove is arranged above the positioning portion.
[0010] Preferably, a first sealing ring is provided between the pressing portion and the circular groove, and a second sealing ring is provided between the connecting hole and the cylinder lower cover.
[0011] The beneficial effects of the utility model are as follows: the air inlet and the air outlet are arranged on the upper cover of the cylinder, and a pneumatic valve cover is added. Through the mutually rotatable cooperation between the pneumatic valve cover and the lower cover of the cylinder, after the installation is completed, the upper cover of the cylinder and the pneumatic valve cover are rotated to adjust the positions of the air inlet and the air outlet, so that the positions of the air inlet and the air outlet are unified, and the installation is more convenient. The problem of difficult connection of the air supply pipeline due to the uncontrollable positions of the air inlet and the air outlet will not be caused. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is the external structure diagram of the utility model;
[0013] Figure 2 It is a cutaway view of the utility model. DETAILED DESCRIPTION
[0014] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0015] See also Figure 1-Figure 2 The utility model provides a valve actuator with an arbitrarily adjustable cylinder angle, comprising a cylinder upper cover 1, a pneumatic valve cover 2 and a cylinder lower cover 3, the cylinder upper cover 1 is provided with an air inlet 11 and an exhaust port 12, the pneumatic valve cover 2 is installed between the cylinder upper cover 1 and the cylinder lower cover 3, the pneumatic valve cover 2 is fixedly connected to the cylinder upper cover 1, and the pneumatic valve cover 2 is connected to the cylinder lower cover 3 and can rotate relative to the cylinder lower cover 3 along the axis.
[0016] The air inlet 11 and the air outlet 12 are arranged on the cylinder upper cover 1, and the pneumatic valve cover 2 is added. Through the mutually rotatable cooperation between the pneumatic valve cover 2 and the cylinder lower cover 3, after the installation is completed, the cylinder upper cover 1 and the pneumatic valve cover 2 are rotated to adjust the positions of the air inlet 11 and the air outlet, so that the positions of the air inlet 11 and the air outlet are unified, and the installation is more convenient. The problem of poor connection of the air supply pipeline will not be caused by the uncontrollable positions of the air inlet 11 and the air outlet.
[0017] Furthermore, a mounting groove 31 is provided on the side wall of the cylinder lower cover 3, a retaining ring 32 is provided in the mounting groove 31, a connecting hole 21 for the cylinder lower cover 3 to extend into is provided at the bottom of the pneumatic valve cover 2, a recessed platform 22 cooperating with the retaining ring 32 is provided at the upper part of the connecting hole 21, a valve cover pressing plate 4 is provided between the pneumatic valve cover 2 and the cylinder upper cover 1, a limiting step 33 is provided on the cylinder lower cover 3, the limiting step 33 is located above the mounting groove 31, a pressing portion 13 is provided at the bottom of the cylinder upper cover 1, the valve cover pressing plate 4 is provided between the pressing portion 13 and the limiting step 33, and the cylinder lower cover 3 is pushed by the pressure of the pressing portion 13 so that the retaining ring 32 is stuck on the recessed platform 22.
[0018] During installation, first, the retaining ring 32 is put into the installation groove 31, and then the cylinder lower cover 3 is passed through the connecting hole 21 from top to bottom. When the cylinder lower cover 3 is moved to the matching position, the retaining ring 32 is stuck on the concave platform 22, and then the valve cover pressing plate 4 is installed, and the valve cover pressing plate 4 is stuck on the limiting step 33. Then the upper cover is installed on the pneumatic valve cover 2, and the pressing part 13 presses the valve cover pressing plate 4 downward. The valve cover pressing plate 4 limits the cylinder lower cover 3 downward through the limiting step 33. Through the limiting of the valve cover pressing plate 4 and the retaining ring 32, the axial direction of the cylinder lower cover 3 and the pneumatic valve cover 2 are locked, and they can rotate along the axis with each other. Through the above arrangement, while the cylinder lower cover 3 and the pneumatic valve cover 2 can rotate along the axis with each other, the structural strength of the connection is guaranteed, and the cylinder lower cover 3 and the pneumatic valve cover 2 are prevented from loosening during operation, and the installation is convenient.
[0019] Furthermore, a positioning groove 23 is provided on the pneumatic valve cover 2, and a positioning portion 41 extending downward is provided at the bottom of the valve cover pressing plate 4, and the shape of the positioning portion 41 is adapted to the positioning groove 23. Through the cooperation of the positioning portion 41 and the positioning groove 23, the valve cover pressing plate 4 is positioned, which facilitates the installation of the valve cover pressing plate 4, and after the installation is completed, the valve cover pressing plate 4 can be assisted in positioning, making the overall structure more solid.
[0020] Furthermore, the cylinder cover 1 and the pneumatic valve cover 2 are connected by threads. It should be understood that they can also be connected by welding or flanges when required by working conditions.
[0021] Furthermore, the pressing portion 13 is annular and has a diameter smaller than the diameter of the cylinder cover 1, so as to form an inwardly recessed limiting portion 15 between the cylinder cover 1 and the side wall of the pressing portion 13. The pressing portion 13 is provided with an external thread on the outside, and a circular groove is provided on the top of the pneumatic valve cover 2. An internal thread is provided inside the circular groove, and the internal thread cooperates with the external thread to fix the pneumatic valve cover 2 to the cylinder cover 1.
[0022] By setting the limiting part 15, the cylinder cover 1 and the pneumatic valve cover 2 are limited, which makes it convenient for the installer to grasp the best position of the cylinder cover 1 and the pneumatic valve cover 2 to avoid improper installation.
[0023] Furthermore, a receiving groove 42 for the pressing portion 13 to extend into is provided at the top of the valve cover pressure plate 4. The receiving groove 42 allows the length of the pressing portion 13 to be extended. When the overall size is the same, a longer external thread can be provided on the pressing portion 13 to enhance the structural strength, or when the strength is the same, the overall volume can be reduced.
[0024] Furthermore, the receiving groove 42 is arranged above the positioning portion 41, and the positioning portion 41 increases the thickness of the portion where it is located. By arranging the receiving groove 42 above the positioning portion 41, the receiving groove 42 can be processed on the valve cover pressure plate 4 without increasing the thickness of the valve cover pressure plate 4, and the structural strength of the valve cover pressure plate 4 is less affected.
[0025] Furthermore, a first sealing ring 61 is provided between the pressing portion 13 and the circular groove, and a second sealing ring 62 is provided between the connecting hole 21 and the cylinder lower cover 3 .
[0026] By providing the first sealing ring 61 and the second sealing ring 62 , the overall air tightness is increased, so that the utility model can adapt to higher working pressure.
[0027] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.
Claims
1. A valve actuator with an adjustable cylinder angle, characterized in that: The invention comprises a cylinder upper cover (1), a pneumatic valve cover (2) and a cylinder lower cover (3), wherein the cylinder upper cover (1) is provided with an air inlet (11) and an air outlet (12), the pneumatic valve cover (2) is installed between the cylinder upper cover (1) and the cylinder lower cover (3), the pneumatic valve cover (2) is fixedly connected to the cylinder upper cover (1), and the pneumatic valve cover (2) is connected to the cylinder lower cover (3) and can rotate relative to the cylinder lower cover (3) along the axis.
2. A valve actuator with an adjustable cylinder angle according to claim 1, characterized in that: A mounting groove (31) is provided on the side wall of the cylinder lower cover (3), a retaining ring (32) is provided in the mounting groove (31), a connecting hole (21) is provided at the bottom of the pneumatic valve cover (2) for the cylinder lower cover (3) to extend into, a concave platform (22) is provided at the upper part of the connecting hole (21) and is matched with the retaining ring (32), a valve cover pressing plate (4) is provided between the pneumatic valve cover (2) and the cylinder upper cover (1), a limiting step (33) is provided on the cylinder lower cover (3), the limiting step (33) is located above the mounting groove (31), a pressing portion (13) is provided at the bottom of the cylinder upper cover (1), the valve cover pressing plate (4) is arranged between the pressing portion (13) and the limiting step (33), and pushes the cylinder lower cover (3) through the pressure of the pressing portion (13) so that the retaining ring (32) is stuck on the concave platform (22).
3. A valve actuator with an adjustable cylinder angle according to claim 2, characterized in that: The pneumatic valve cover (2) is provided with a positioning groove (23), and the bottom of the valve cover pressing plate (4) is provided with a positioning portion (41) extending downwards, and the shape of the positioning portion (41) is adapted to the positioning groove (23).
4. A valve actuator with an adjustable cylinder angle according to claim 2, characterized in that: The cylinder upper cover (1) is connected to the pneumatic valve cover (2) via threads.
5. A valve actuator with an adjustable cylinder angle according to claim 4, characterized in that: The pressing portion (13) is annular and has a diameter smaller than that of the cylinder cover (1), so that an inwardly recessed limiting portion (15) is formed between the cylinder cover (1) and the side wall of the pressing portion (13). An external thread is provided on the outside of the pressing portion (13). A circular groove is provided on the top of the pneumatic valve cover (2). An internal thread is provided inside the circular groove. The internal thread cooperates with the external thread to fix the pneumatic valve cover (2) to the cylinder cover (1).
6. A valve actuator with an adjustable cylinder angle according to claim 5, characterized in that: The top of the valve cover pressing plate (4) is provided with a receiving groove (42) for the pressing portion (13) to extend into.
7. A valve actuator with an arbitrarily adjustable cylinder angle according to claim 6, characterized in that: The accommodating groove (42) is arranged above the positioning portion (41).
8. The valve actuator with arbitrarily adjustable cylinder angle according to claim 5, characterized in that: A first sealing ring (61) is provided between the pressing portion (13) and the circular groove, and a second sealing ring (62) is provided between the connecting hole (21) and the cylinder lower cover (3).