Simple grinding tool for sealing and grinding valve seat of plane stop valve
By designing a simple grinding tool consisting of a large circular plate, a small circular plate, and abrasive sandpaper, and using a gun drill to drive it, the problem of inconvenience and low efficiency of traditional manual hand-held grinding was solved, achieving efficient valve seat seal grinding.
Patent Information
- Application Number
- CN202511682390.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-01-09
AI Technical Summary
Traditional manual hand-held grinding tools are inconvenient and inefficient for grinding the sealing of flat stop valve seats.
Design a simple grinding tool that includes a large round plate, a small round plate, and abrasive sheets. Driven by a gun drill, it connects to the gun drill via a connector to achieve efficient grinding of the abrasive sheets.
It improves the ease and efficiency of grinding the valve seat seal of the flat gate valve.
Smart Images
Figure CN121290219A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a flat cut-off valve, in particular to a simple grinding tool for flat cut-off valve seat seal grinding. BACKGROUND
[0002] For flat cut-off valve seat seal grinding, the traditional method is to manually hold a general grinding tool for grinding, which is inconvenient and inefficient. SUMMARY
[0003] In view of the above problems, the present application provides a simple grinding tool for flat cut-off valve seat seal grinding.
[0004] The technical scheme of the present application is as follows: A simple grinding tool for flat cut-off valve seat seal grinding, the grinding tool comprises a grinding sand skin; the grinding tool further comprises a large circular plate and a small circular plate, the large circular plate and the small circular plate are coaxial and fixed together, the large circular plate is at the back and the small circular plate is at the front, the diameter of the large circular plate is larger than the outer diameter of the flat cut-off valve seat sealing surface, the diameter of the small circular plate is smaller than the inner diameter of the flat cut-off valve seat sealing surface, the grinding sand skin is clamped between the large circular plate and the small circular plate, and the grinding sand skin is partially exposed from the small circular plate with the large circular plate as the support.
[0005] Further to the above technology, the grinding tool is driven by a gun drill; a connecting head is installed on the gun drill to connect the grinding tool.
[0006] Further to the above technology, the connecting head is a cross-shaped drill bit, and the connecting head is clamped between two bolts symmetrically arranged at the center of the back of the large circular plate.
[0007] Further to the above technology, a positioning circular groove is arranged at the center of the back of the large circular plate, and when the connecting head is clamped between the two bolts symmetrically arranged at the center of the back of the large circular plate, the end of the connecting head is placed in the positioning circular groove.
[0008] The present application has the advantages of reasonable design, simple structure, convenient grinding and high grinding efficiency when used for flat cut-off valve seat seal grinding. BRIEF DESCRIPTION OF DRAWINGS
[0009] Fig. 1 is a structure schematic view of a simple grinding tool for flat cut-off valve seat seal grinding (in use).
[0010] Fig. 2 is a structure schematic view of a simple grinding tool for flat cut-off valve seat seal grinding (front view).
[0011] The diagram shows grinding tool 1, grinding sand 1-1, large round plate 1-2, small round plate 1-3, flat stop valve seat 2, gun drill 3, connector 4, bolt 5, and positioning groove 6. Detailed Implementation
[0012] like Figs. 1-2 As shown, a simple grinding tool for grinding the seal of a planar gate valve seat is disclosed. The grinding tool 1 includes a grinding sand 1-1, a large circular plate 1-2, and a small circular plate 1-3. The large circular plate 1-2 and the small circular plate 1-3 are coaxial and fixed together, with the large circular plate 1-2 at the rear and the small circular plate 1-3 at the front. The diameter of the large circular plate 1-2 is larger than the outer diameter of the sealing surface of the planar gate valve seat 2, and the diameter of the small circular plate 1-3 is smaller than the inner diameter of the sealing surface of the planar gate valve seat 2. The grinding sand 1-1 is clamped between the large circular plate 1-2 and the small circular plate 1-3. A portion of the grinding sand 1-1, i.e., the grinding part, is exposed outside the small circular plate 1-3 and supported by the large circular plate 1-2. Two bolts 5 are symmetrically arranged at the center of the rear of the large circular plate 1-2, and positioning grooves are symmetrically arranged at the center of the rear of the large circular plate 1-2. A gun drill 3 and a connector 4 are also included. The connector 4 is a cross drill bit. In use, place the grinding tool 1 on the flat stop valve seat 2, so that the small round plate falls into the flat stop valve seat 2 and the grinding part of the grinding sand 1-1 contacts the sealing surface of the flat stop valve seat 2; install the connector 4 onto the gun drill 3; place the gun drill 3 with the connector 4 on the grinding tool, so that the connector 4 is stuck between the two bolts 5 at the center of the rear of the symmetrically arranged large round plates 1-2, and the end is placed in the positioning round groove 6; start the gun drill 3 to make the grinding tool 1 rotate, and the grinding part of the grinding sand 1-1 grinds the sealing surface of the flat stop valve seat 2.
[0013] The above embodiments are only for illustrating the technical concept and features of the invention, and are intended to enable those skilled in the art to understand the content of the invention and implement it accordingly. They should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be covered within the scope of protection of the invention.
Claims
1. A simple grinding tool for grinding the valve seat seal of a planar gate valve, the grinding tool comprising abrasive pads; characterized in that, The grinding tool also includes a large circular plate and a small circular plate, which are coaxial and fixed together. The large circular plate is at the rear and the small circular plate is at the front. The diameter of the large circular plate is larger than the outer diameter of the sealing surface of the flat stop valve seat, and the diameter of the small circular plate is smaller than the inner diameter of the sealing surface of the flat stop valve seat. The grinding sand is sandwiched between the large circular plate and the small circular plate, and a portion of the grinding sand, i.e. the grinding part, is exposed outside the small circular plate and supported by the large circular plate.
2. A simple grinding tool for grinding the valve seat seal of a planar gate valve according to claim 1, characterized in that, The grinding tool is driven by a gun drill during grinding; the gun drill is equipped with a connector, through which the grinding tool is connected.
3. A simple grinding tool for grinding the valve seat seal of a planar gate valve according to claim 2, characterized in that, The connector is a cross-shaped drill bit, which is engaged between two bolts located at the center of the back of the symmetrically arranged large circular plates.
4. A simple grinding tool for grinding the valve seat seal of a planar gate valve according to claim 3, characterized in that, A positioning groove is provided at the center of the back of the large circular plate. When the connector is engaged between two bolts symmetrically positioned at the center of the back of the large circular plate, its end is placed in the positioning groove.