一种天然气阀门的注脂头
By designing grease injection heads with arc plates and circular structures to adapt to different sizes, the difficulty of matching caused by the size differences of grease injection joints for natural gas valves was solved, and the efficiency of grease injection operation was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-17
AI Technical Summary
The different sizes and specifications of the grease fittings that come with different natural gas valves mean that the grease nozzle on the grease gun needs to be changed frequently during grease injection, which increases the complexity of the operation and reduces efficiency.
A grease injection head for a natural gas valve is designed, employing a combination mechanism of an arc plate and a ring. The arc plate is elastic and connected by a thread, while the ring drives the arc plate to press the valve grease injection joint, adapting to grease injection joints within a certain size range.
This solves the compatibility problem of the grease injection head during grease injection, reduces operational complexity, and improves the overall efficiency of grease injection operations.
Smart Images
Figure CN224516463U_ABST
Abstract
Claims
1. A grease fitting head for natural gas valves, characterized by, include: The disk (1) is provided with a first through hole (103); Connector (2), the connector (2) is located on one side of the disk (1), the connector (2) is provided with a second through hole (201), the second through hole (201) and the first through hole (103) are arranged coaxially; A plurality of arc plates (3) are elastic, and the plurality of arc plates (3) are installed on the other side of the disc (1). The plurality of arc plates (3) are arranged in a ring around the axis of the first through hole (103). The inner side of the plurality of arc plates (3) is provided with a first thread, which is used to cooperate with the external thread on the valve grease fitting (8). The outer side of the plurality of arc plates (3) is provided with a protrusion (301). The length direction of the protrusion (301) is perpendicular to the plane where the disc (1) is located. The protrusion height of the protrusion (301) gradually increases from the end close to the disc (1) to the end far away from the disc (1). A circular ring (4) is located on the outside of several arc plates (3). The inner side of the circular ring (4) is provided with a first groove (401). The number and shape of the first groove (401) match the protrusion (301). The circular ring (4) can move along the length direction of several arc plates (3) and thus drive one end of several arc plates (3) away from the disk (1) to move towards the center.
2. The grease fitting of claim 1 wherein, A rubber pad (6) is provided on the inner side of several of the arc plates (3). The rubber pad (6) is connected to the disk (1). The rubber pad (6) is provided with a third through hole (601). The third through hole (601) is coaxially arranged with the first through hole (103).
3. The grease fitting of claim 1 wherein: It also includes a sleeve (5), the inner side of which is connected to the outer side of the ring (4) by a thread, one end of which is connected to the disk (1), the sleeve (5) can rotate around the axis of the disk (1), and the rotation of the sleeve (5) can drive the ring (4) to move along the length direction of the protrusion (301).
4. The grease fitting of claim 3 wherein: The outer wall of the sleeve (5) is provided with staggered scoring mesh, the mesh size of which is 5mm-10mm and the scoring depth of which is 0.5mm-1mm.
5. The grease fitting of claim 3 wherein: The disc (1) is provided with a groove (102), and the sleeve (5) is provided with a number of sliders (501) that match the groove (102). The sleeve (5) is connected to the disc (1) through the sliders (501) and the groove (102).
6. A grease fitting head for natural gas valves as defined in any one of claims 1 to 5, characterized in that Several of the arc plates (3) and the disk (1) are connected by a rotating hinge. Each arc plate (3) is provided with an elastic component (7) on its outer side. The two ends of the elastic component (7) are connected to the arc plate (3) and the disk (1) respectively. The elastic component (7) is in a tension state.
7. A grease fitting head for natural gas valves as defined in claim 6, wherein, The disc (1) is provided with a plurality of second grooves (101), and each arc plate (3) is connected to the corresponding second groove (101) by a connecting plate (302). The connecting plate (302) is connected to the corresponding second groove (101) by a pin.
8. The grease fitting of claim 6 wherein: The end of the connector (2) near the disk (1) is a hexagonal prism, and the end of the connector (2) away from the disk (1) is provided with a second thread, which is used to connect to the grease gun.
9. The grease fitting of claim 6 wherein, The thickness of the arc plate (3) is 4mm-6mm, and the central angle corresponding to the arc plate (3) is 45° to 70°.
10. The grease fitting of claim 6 wherein, The width of the protrusion (301) is 2mm-3mm, and the protrusion height of the end of the protrusion (301) away from the disk (1) is 1mm-2mm higher than the protrusion height of the end of the protrusion (301) close to the disk (1).