Lubricating and sealing device for pneumatic valve support
By designing a pneumatic valve bracket lubrication sealing device, the lubricating liquid in the oil storage space is applied to the outer wall of the piston rod, which solves the problems of piston rod wear and friction, and achieves the effect of reducing friction and reducing wear.
Patent Information
- Application Number
- CN202421809892.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The piston rod of the pneumatic valve is prone to wear during long-term use, resulting in strain and abrasion during operation.
A pneumatic valve bracket lubrication sealing device is designed, including a bracket, a guide sleeve, an oil cup and a sealing ring. The piston rod is movably arranged between the oil cup and the guide sleeve to form an oil storage space, and the lubricating liquid is applied to the outer wall of the piston rod to reduce friction and wear.
By contacting the lubricant with the sealing ring and the combined seal, the friction of the piston rod during movement is reduced, wear is reduced, and the piston rod is damaged during operation is avoided.
Smart Images
Figure CN223019082U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lubricating mechanisms, and particularly relates to a lubricating and sealing device for a pneumatic valve bracket. Background Art
[0002] The driving device of the pneumatic valve is a cylinder. During use, the cylinder drives the piston rod to reciprocate up and down. A sliding seal is achieved between the piston rod and the bracket through a seal. After long-term use, the piston rod and the seal are prone to wear, resulting in scratches and abrasions on the piston rod during operation. Content of the Utility Model
[0003] The utility model aims to solve the above technical problems at least to a certain extent. For this purpose, the purpose of the utility model is to provide a lubricating and sealing device for a pneumatic valve bracket.
[0004] The technical solution adopted by the utility model is as follows:
[0005] A lubricating and sealing device for a pneumatic valve bracket includes a bracket, a guide sleeve and an oil cup are arranged inside the bracket, the oil cup is located above the guide sleeve, the piston rod movably passes through the oil cup and the guide sleeve, and an annular space is formed between the outer wall of the piston rod and the inner wall of the oil cup to form an oil storage space. A sealing ring, a combined seal and a support ring are arranged on the inner wall of the guide sleeve from top to bottom, and an O-ring is arranged on the outer wall of the guide sleeve.
[0006] Preferably, an oil injection port is opened on the side wall of the oil cup, and a sealing cover is detachably installed on the oil injection port. A pressing ring is arranged on the bracket, and two ends of the guide sleeve are respectively in contact with the oil cup and the pressing ring. A sealing ring is also arranged at the inner wall of the oil cup in contact with the piston rod.
[0007] The beneficial effect of the utility model is:
[0008] For the lubricating and sealing device for a pneumatic valve bracket provided by the utility model, the lubricating liquid in the oil storage space is coated on the outer wall of the piston rod. As the piston rod moves downward, the lubricating liquid can contact the sealing ring and the combined seal to achieve lubrication; reduce the friction during the movement of the piston rod and reduce wear. Description of the Drawings
[0009] Figure 1 It is a schematic diagram of the lubricating and sealing device for a pneumatic valve bracket of the utility model.
[0010] Figure 2 It is a cross-sectional view of the oil cup of the utility model.
[0011] In the figure: 1 - bracket; 2 - guide sleeve; 3 - oil cup; 4 - piston rod; 5 - oil storage space; 6 - sealing ring; 7 - combined seal; 8 - support ring; 9 - O-ring; 10 - oil injection port; 11 - pressing ring. Detailed Embodiment
[0012] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model. Components of the embodiments of the present utility model generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.
[0013] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements.
[0014] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] As Figure 1 and Figure 2 shown, the pneumatic valve bracket lubrication and sealing device of this embodiment includes a bracket 1. A guide sleeve 2 and an oil cup 3 are provided inside the bracket 1. A pressing ring 11 is provided on the bracket 1. The lower end of the guide sleeve 2 contacts the oil cup 3, and the upper end of the guide sleeve 2 contacts the pressing ring 11; a piston rod 4 movably penetrates through the oil cup 3 and the guide sleeve 2. An annular space between the outer wall of the piston rod 4 and the inner wall of the oil cup 3 forms an oil storage space 5. A sealing ring 6, a combined seal 7 and a support ring 8 are provided on the inner wall of the guide sleeve 2 from top to bottom. An O-ring 9 is provided on the outer wall of the guide sleeve 2; the sealing ring 6 and the combined seal 7 on the inner wall of the guide sleeve 2 achieve sliding sealing between the guide sleeve 2 and the piston rod 4; the O-ring 9 on the outer wall of the guide sleeve 2 achieves fixed sealing between the guide sleeve 2 and the bracket 1.
[0016] A sealing ring 6 is also provided at the inner wall of the oil cup 3 where it contacts the piston rod 4. The sealing ring on the inner wall of the oil cup 3 achieves sliding sealing between the oil cup 3 and the piston rod 4; an oil injection port 10 is provided on the side wall of the oil cup 3. A sealing cover (not shown in the figure) is detachably installed on the oil injection port 10. The position of the bracket 1 relative to the sealing cover is a hollow structure; lubricating liquid can be injected into the oil storage space 5 from the oil injection port 10; when the piston rod 4 reciprocates up and down, the lubricating liquid in the oil storage space 5 is coated on the outer wall of the piston rod 4. As the piston rod 4 moves downward, the lubricating liquid can contact the sealing ring 6 and the combined seal 7 to achieve lubrication; reduce the friction during the movement of the piston rod 4 and reduce wear, and avoid the phenomena of pulling and scratching of the piston rod 4 during operation.
[0017] The present utility model is not limited to the above optional embodiments. Any person can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they are all within the protection scope of the present utility model.
Claims
1. A pneumatic valve support lubrication and sealing device, characterized in that: The invention comprises a support (1), wherein a guide sleeve (2) and an oil cup (3) are arranged inside the support (1), the oil cup (3) is located above the guide sleeve (2), a piston rod (4) is movably arranged through the oil cup (3) and the guide sleeve (2), an annular space between the outer wall of the piston rod (4) and the inner wall of the oil cup (3) forms an oil storage space (5), the inner wall of the guide sleeve (2) is provided with a sealing ring (6), a combined sealing member (7) and a supporting ring (8) from top to bottom, and an O-ring (9) is arranged on the outer wall of the guide sleeve (2).
2. The pneumatic valve support lubrication and sealing device according to claim 1, characterized in that: An oil filling port (10) is provided on the side wall of the oil cup (3), and a sealing cover is detachably mounted on the oil filling port (10).
3. The pneumatic valve support lubrication and sealing device according to claim 1, characterized in that: The bracket (1) is provided with a pressure ring (11), and the two ends of the guide sleeve (2) are in contact with the oil cup (3) and the pressure ring (11) respectively.
4. The pneumatic valve support lubrication and sealing device according to claim 1, characterized in that: A sealing ring (6) is also provided at the inner wall where the oil cup (3) contacts the piston rod (4).