Ejection air cylinder acting on one-way valve with portable reverse opening function
By designing a multi-air-supply pipeline structure for the ejector cylinder, automated testing of pneumatic one-way valves was achieved, solving the problems of long testing time and poor accuracy in existing technologies, and improving testing efficiency and accuracy.
Patent Information
- Application Number
- CN202423226224.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the existing technology, pneumatic check valves with reverse opening function require manual operation during the detection process, resulting in long detection time and poor accuracy, which cannot meet the needs of social development.
An ejector cylinder for a one-way valve with a portable reverse opening function was designed, including an ejector cylinder body, a piston rod, and a rear cover. By setting multiple air supply lines and sealing rings in the cylinder body, an automated testing process is achieved.
The automated testing of pneumatic check valves has been achieved, improving testing efficiency and accuracy, reducing manual intervention, and meeting the needs of social development.
Smart Images
Figure CN223648201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary testing equipment for one-way valves, and in particular to a push-out cylinder that acts on a one-way valve with a portable reverse opening function. Background Technology
[0002] Pneumatic check valves with reverse opening function can only allow compressed air to flow in one direction; reverse flow is not possible. If reverse opening is required, other mechanisms must be used to control the opening. These valves have a wide range of applications. After production, these check valves require 100% testing. Currently, there is no specialized testing equipment to assist in the testing process of pneumatic check valves with reverse opening function. Testing is currently done using a single manual pneumatic testing circuit combined with manual operation, resulting in long testing times and poor accuracy. With continuous social development and rising labor costs, this method cannot meet the needs of social development. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes an ejector cylinder that acts on a one-way valve with a portable reverse opening function to assist in the testing process of a pneumatic one-way valve with a reverse opening function.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an ejector cylinder for a one-way valve with a portable reverse opening function, including an ejector cylinder body, a piston rod and a rear cover, wherein a groove is provided in the ejector cylinder body for the piston rod to reciprocate, the piston rod and the rear cover are movably fixed in the groove, and a first air supply pipe is provided through the thickness direction of the ejector cylinder body, the output end of the first air supply pipe being close to the end of the piston rod.
[0005] Furthermore, the piston rod has a stepped structure, including a rod section, a rod body section, and a force-bearing section, with the diameters of the rod section, rod body section, and force-bearing section increasing sequentially; the groove includes a first groove section and a second groove section, the first groove section having the same width as the rod body section, the second groove section having the same width as the force-bearing section, and the length of the second groove section being greater than the length of the force-bearing section, with the output end of the first gas supply pipeline located above the first groove section.
[0006] Furthermore, a sealing ring and a guide sleeve are fixedly provided on the outer edge of the stress-bearing section.
[0007] Furthermore, a second air supply pipe is provided through the thickness direction of the cylinder body, and the output end of the second air supply pipe is located above the second tank section.
[0008] Furthermore, a third gas supply line is provided in the rear cover, and the output end of the third gas supply line faces the piston rod.
[0009] Compared with the prior art, the beneficial effects of this utility model include: by fixing the one-way valve, the one-way valve completes the reverse airtightness test process through the first air supply line, and the forward and backward movement of the ejector cylinder is controlled by the second and third air supply lines, which helps to ensure that the test conditions of the one-way valve test process are consistent, and the test process can be completely mechanized and controlled without manual intervention. Attached Figure Description
[0010] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0011] Figure 1 The schematic diagram shows a cross-sectional view of the ejector cylinder acting on a one-way valve with a portable reverse opening function.
[0012] The numbers in the diagram are: 1-Ejector cylinder, 2-Piston push rod, 21-Push rod section, 22-Rod section, 23-Force-bearing section, 3-Rear cover, 4-First air supply line, 5-Second air supply line, 6-Third air supply line. Detailed Implementation
[0013] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0014] An ejector cylinder that acts on a one-way valve with a portable reverse opening function, such as Figure 1 As shown, the device includes an ejector cylinder 1, a piston rod 2, and a rear cover 3. A groove is provided in the ejector cylinder 1 for the piston rod 2 to reciprocate. The piston rod 2 is movably fixed in the groove by the rear cover 3. A first air supply pipe 4 is provided through the thickness direction of the ejector cylinder 1. The first air supply pipe 4 is close to the end of the piston rod 2. Through the first air supply pipe 4, test pressure can be provided to the one-way valve under test based on the end of the piston rod 2 to complete part of the test process.
[0015] The aforementioned piston rod 2 has a stepped structure, including a rod section 21, a rod body section 22, and a force-bearing section 23. The diameters of the rod section 21, rod body section 22, and force-bearing section 23 increase sequentially. The groove includes a first groove section and a second groove section. The width of the first groove section is the same as that of the rod body section 22, allowing the rod body section 22 of the piston rod 2 to reciprocate within the first groove section and to be limited by the first groove section. The width of the second groove section is the same as that of the force-bearing section 23, and the length of the second groove section is greater than that of the force-bearing section 23, so that the groove can meet the movement requirements of the rod section 21, rod body section 22, and force-bearing section 23 of the piston rod 2. The output end of the first air supply line 4 is located above the first groove section, providing test pressure to the one-way valve when the ejector cylinder does not apply pressure to it.
[0016] It is worth noting that a second air supply pipe 5 is provided through the thickness direction of the aforementioned cylinder body. The output end of the second air supply pipe 5 is located above the second groove section and is used to supply pressure to the rod section 22 of the piston rod 2, thereby pushing the piston rod 2 away from the one-way valve. A third air supply pipe 6 is provided in the rear cover 3, with its output end facing the piston rod 2. It is used to provide pressure to the end of the piston rod 2, thereby pushing the piston rod 2 towards the one-way valve. To ensure the airtightness of the groove, especially the airtightness of the second groove section, a sealing ring and a guide sleeve are fixedly installed on the outer edge of the force-bearing section 23 to ensure the reciprocating motion of the piston rod 2 within the groove under the control of the second air supply pipe 5 and the third air supply pipe 6.
[0017] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A push-out cylinder for a one-way valve with a portable reverse opening function, characterized in that, The device includes an ejector cylinder (1), a piston rod (2), and a rear cover (3). A groove is provided in the ejector cylinder (1) for the piston rod (2) to reciprocate. The piston rod (2) and the rear cover (3) are movably fixed in the groove. A first gas supply pipe (4) is provided through the thickness direction of the ejector cylinder (1). The output end of the first gas supply pipe (4) is close to the end of the piston rod (2).
2. The ejector cylinder acting on a one-way valve with a portable reverse opening function as described in claim 1, characterized in that, The piston rod (2) has a stepped structure, including a rod section (21), a rod section (22), and a force-bearing section (23). The diameters of the rod section (21), rod section (22), and force-bearing section (23) increase sequentially. The groove includes a first groove section and a second groove section. The width of the first groove section is the same as that of the rod section (22), and the width of the second groove section is the same as that of the force-bearing section (23). The length of the second groove section is greater than that of the force-bearing section (23). The output end of the first gas supply pipeline (4) is located above the first groove section.
3. The ejector cylinder acting on a one-way valve with a portable reverse opening function as described in claim 2, characterized in that, A sealing ring and a guide sleeve are fixedly provided on the outer edge of the force-bearing section (23).
4. The ejector cylinder acting on a one-way valve with a portable reverse opening function as described in claim 2, characterized in that, A second air supply pipe (5) is provided through the thickness direction of the cylinder body, and the output end of the second air supply pipe (5) is located above the second tank section.
5. The ejector cylinder acting on a one-way valve with a portable reverse opening function as described in claim 2, characterized in that, A third gas supply line (6) is provided in the rear cover (3), and the output end of the third gas supply line (6) faces the piston rod (2).