Quick connecting device for valve actuator

Abstract

The utility model relates to the field of valve actuators, in particular to a quick connecting device for a valve actuator, which comprises an actuator, positioning pin shafts, an elastic clamp spring, a valve and a flange plate, the four positioning pin shafts with the same size are mounted on the side wall of the bottom of the actuator and can be clamped into the flange plate, so that the lower end face of the actuator is tightly attached to the upper end face of the flange plate; an elastic clamping spring is installed at the position, clamped into the lower end of the flange plate, of the positioning pin shaft.

Description

Technical Field

[0001] This utility model relates to the field of valve actuators, and specifically to a quick connection device for valve actuators. Background Technology

[0002] A valve is a fluid control device used to control the flow rate, pressure, direction, and operating status of fluids in a pipeline. An actuator is a mechanism that converts signals and energy into valve motion. Different actuators, such as pneumatic, hydraulic, and electric actuators, can be selected according to different control requirements. A Chinese patent discloses a quick-connect coupling for a switch-type valve and a linear actuator (authorization announcement number CN 205806653 U). This patented technology ensures the concentricity of the actuator push rod and the valve stem during connection and installation, which can compensate to some extent for the misalignment of the two rods caused by machining and installation errors, preventing bending of the weaker rod on one side, ensuring smooth valve opening and closing, and extending the service life of the rods. However, this design uses locking screws for fixation, which can break the threads on the valve stem and actuator push rod during valve opening and closing, causing the locking screws to loosen and leading to disengagement. Therefore, those skilled in the art have provided a quick-connect device for valve actuators to solve the problems mentioned in the background art. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a quick connection device for a valve actuator, including an actuator, positioning pins, elastic snap rings, a valve, and a flange. Four positioning pins of the same size are installed on the bottom side wall of the actuator. The positioning pins can be inserted into the flange so that the lower end face of the actuator is in close contact with the upper end face of the flange. The flange is installed on the upper side of the valve. An elastic snap ring is installed at the lower end position where the positioning pins are inserted into the flange.

[0004] Preferably, the outer wall at the bottom end of the positioning pin is provided with a positioning pin groove;

[0005] Preferably, the flange has four mounting holes of the same size, and a positioning pin can be installed in the mounting holes;

[0006] Preferably, when the positioning pin is inserted into the mounting hole, the positioning pin groove is positioned below the lower end face of the flange, and an elastic retaining spring can be inserted into the positioning pin groove.

[0007] The technical effects and advantages of this utility model are as follows:

[0008] 1. Four positioning pins are installed under the actuator. The positioning pins are installed into the corresponding mounting holes of the flange so that the lower end face of the actuator is close to the upper end face of the flange. At this time, the positioning pin groove is located below the lower end face of the flange. The elastic snap ring is compressed and installed into the positioning pin groove of the positioning pin. The elastic snap ring is released and snapped into the positioning pin groove, automatically fixing and locking the connection between the actuator and the valve.

[0009] 2. Easy to assemble and disassemble, facilitating rapid construction. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a valve actuator quick-connect device provided in an embodiment of this application;

[0011] Figure 2 This application provides a quick-connect device for a valve actuator. Figure 1 Front view structural diagram;

[0012] Figure 3 This is an exploded structural diagram of a valve actuator quick-connect device provided in an embodiment of this application;

[0013] Figure 4 This application provides a quick-connect device for a valve actuator. Figure 3 A schematic diagram of the front view structure.

[0014] In the diagram: 1. Actuator; 2. Locating pin; 3. Elastic snap ring; 4. Valve; 5. Locating pin groove; 6. Flange; 7. Mounting hole. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0016] Example

[0017] Please see Figures 1-4In this embodiment, a quick-connect device for a valve actuator is provided, including an actuator 1, a positioning pin 2, an elastic snap ring 3, a valve 4, and a flange 6. Four positioning pins 2 of the same size are installed on the bottom side wall of the actuator 1. The positioning pins 2 can be inserted into the flange 6 so that the lower end face of the actuator 1 is in close contact with the upper end face of the flange 6. The flange 6 is installed on the upper side of the valve 4. An elastic snap ring 3 is installed at the lower end position where the positioning pins 2 are inserted into the flange 6.

[0018] Specifically, a positioning pin groove 5 is provided on the outer wall at the bottom end of the positioning pin 2;

[0019] The flange 6 has four mounting holes 7 of the same size;

[0020] The positioning pin 2 can be installed in the mounting hole 7. When the positioning pin 2 is inserted into the mounting hole 7, the positioning pin groove 5 is positioned below the lower end face of the flange 6.

[0021] The locating pin groove 5 can be fitted with an elastic retaining spring 3.

[0022] The working principle of this utility model is as follows:

[0023] In a valve actuator quick-connect device, four positioning pins 2 are installed on the bottom of the actuator 1. The positioning pins 2 are installed into the corresponding mounting holes 7 of the flange 6, so that the lower end face of the actuator 1 is close to the upper end face of the flange 6. At this time, the positioning pin groove 5 is positioned below the lower end face of the flange 6. The elastic retaining spring 3 is compressed and installed into the positioning pin groove 5 of the positioning pin 2. When the elastic retaining spring 3 is released, it snaps into the positioning pin groove 5, automatically fixing and locking the connection between the actuator 1 and the valve 4. Disassembly is performed in the reverse order. This device is simple to install and disassemble, facilitates quick assembly and disassembly, and is convenient for rapid construction.

[0024] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A quick-connect device for a valve actuator, characterized in that, The actuator (1), positioning pins (2), elastic snap rings (3), valve (4) and flange (6) are included. Four positioning pins (2) of the same size are installed on the bottom side wall of the actuator (1). The positioning pins (2) can be inserted into the flange (6) so that the lower end face of the actuator (1) is close to the upper end face of the flange (6). The flange (6) is installed on the upper side of the valve (4). The elastic snap rings (3) are installed at the lower end position of the positioning pins (2) inserted into the flange (6).

2. The valve actuator quick-connect device according to claim 1, characterized in that, The outer wall of the bottom end of the positioning pin (2) is provided with a positioning pin groove (5).

3. The valve actuator quick-connect device according to claim 1, characterized in that, The flange (6) has four mounting holes (7) of the same size.

4. A quick-connect device for a valve actuator according to claim 3, characterized in that, A positioning pin (2) can be installed in the mounting hole (7).

5. A quick-connect device for a valve actuator according to claim 4, characterized in that, When the positioning pin (2) is inserted into the mounting hole (7), the positioning pin groove (5) is positioned below the lower end face of the flange (6).

6. A quick-connect device for a valve actuator according to claim 5, characterized in that, An elastic retaining ring (3) can be inserted into the positioning pin groove (5).

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