CN-224214730-U - Buckle formula quick detach formula high performance double-flashboard gate valve

Abstract

The utility model discloses a snap-in quick-disassembly type high-performance double-gate valve which comprises a valve body, a valve seat, a double-gate structure and a valve rod, wherein the double-gate structure comprises a left gate and a right gate, an annular groove is formed in the right side of the left gate, a pair of inner bosses are arranged on the upper side and the lower side of an opening in the right side of the annular groove, an annular table protruding leftwards is fixed on the left side of the right gate, an outer boss is fixed on the left side of the annular table, the left gate and the right gate are fixed through a flat key positioning structure at the top, the left side of the left gate is an inclined plane protruding leftwards at the upper part, and the right side of the right gate is an inclined plane protruding rightwards at the upper part. The utility model comprehensively solves the problems of poor sealing performance, complex maintenance, high cost and the like of the traditional double-gate valve through the innovative designs of the buckle-type gate plate cooperation, the flat key quick-release structure, the stellite alloy sealing surface, the micro-movement pressure relief mechanism and the like, realizes the technical effects of high sealing performance, quick disassembly, low cost and long service life, and is suitable for high-requirement industrial pipeline systems.

Inventors

• Xiang Yinzhao
• ZHENG YINGCHENG
• Pan Jiaoqiang
• ZHENG YINGPAI
• LIU YUNFEI
• LI XIAOMING
• LIN PENGWEI
• FENG CHUNYU

Assignees

• 浙江欧菲石油设备有限公司

Dates

Publication Date

20260508

Application Date

20250520

Claims (6)

1. 1. The utility model provides a buckle quick detach type high performance double-gate board gate valve, its characterized in that includes valve body (1), disk seat (2), with disk seat (2) assorted double-gate board structure (3) to and drive double-gate board structure (3) reciprocates valve rod (4), double-gate board structure (3) include left flashboard (31) and right flashboard (32), ring channel (33) are seted up on the right side of left flashboard (31), the upper and lower both sides of right side opening part of ring channel (33) are equipped with a pair of interior boss (34) to the center arch, two interior boss (34) mutually symmetry set up, the left side of right flashboard (32) is fixed with protruding annular table (35) to the left, the upper and lower both sides of annular table (35) left side are fixed with a pair of outside protruding boss (36) along radial direction, boss (36) and ring channel (33) clearance fit, left flashboard (31) and right flashboard (32) fix through flat key location structure (5) at top, boss (31) are the boss (32) of the boss that the upper and right side is the boss (32) that the boss is the boss that is the right side.
2. 2. The snap-in quick-release type high-performance double-gate valve according to claim 1, wherein the flat key positioning structure (5) comprises a key groove (51) formed in the tops of the left gate plate (31) and the right gate plate (32) and a flat key (52) matched with the key groove (51), a screw hole (53) is formed in the top of the left gate plate (31) or the right gate plate (32), a screw (54) is matched with the screw hole (53), a through hole is formed in the flat key (52) at a position corresponding to the screw hole (53), and the screw (54) penetrates through the through hole in the flat key (52) and then is screwed into the screw hole (53).
3. 3. The snap-in quick release type high performance double gate valve according to claim 1, wherein the two inner bosses (34) are symmetrical at 92-95 ° in the annular groove (33).
4. 4. A snap-in quick release high performance double gate valve according to claim 3, wherein the two outer bosses (36) are symmetrical about 85-87 ° on the annular land (35).
5. 5. The snap-in quick-release type high-performance double-gate valve according to claim 1, wherein sealing surfaces of the valve seat (2), the left gate (31) and the right gate (32) and contact surfaces between the left gate (31) and the right gate (32) are made of stellite.
6. 6. The snap-in quick-release type high-performance double-gate valve according to claim 1, wherein a positioning mechanism (6) longitudinally fixed and circumferentially rotating with the valve rod (4) is arranged at the top of the double-gate structure (3).

Description

Buckle formula quick detach formula high performance double-flashboard gate valve Technical Field The utility model relates to a snap-in quick-release type high-performance double-flashboard gate valve. Background In the prior art and the vast products, the common double-flashboard gate valve has a plurality of defects in the maintenance, overhaul and processing processes: The structure of the common double-flashboard gate valve is too complex, the processing cost is high, the disassembly and assembly processes are complex during maintenance, professional equipment and tools are needed more, quick inspection and quick repair cannot be realized without affecting the normal operation of a pipeline system, and the maintenance process is long, so that time waste and economic loss are caused. Disclosure of utility model In order to solve the problems, the utility model provides the snap-in quick-release type high-performance double-gate valve, which realizes high sealing performance, easy maintenance and low-cost processing by optimizing sealing surface materials and improving a gate plate matching mode and a quick-release structure, and effectively solves the problems pointed out in the background technology. The technical scheme adopted by the utility model is as follows: The utility model provides a buckle formula quick detach formula high performance double-gate board gate valve, includes valve body, disk seat, with disk seat assorted double-gate board structure to and the valve rod of drive double-gate board structure reciprocates, double-gate board structure include left flashboard and right flashboard, the ring channel is seted up on the right side of left flashboard, the upper and lower both sides of the right side opening part of ring channel are equipped with to central bellied a pair of interior boss, two interior boss mutual symmetry sets up, the left side of right flashboard is fixed with left bellied annular table, the upper and lower both sides of annular table left side are fixed with a pair of outside bellied outer boss along radial direction, outer boss and ring channel clearance fit, left flashboard and right flashboard pass through the parallel key location structure at top and fix, the upper portion left bellied inclined plane is left in the left side of left flashboard, the right side of right flashboard is upper portion bellied inclined plane right. Preferably, the flat key positioning structure comprises key grooves formed in the tops of the left gate plate and the right gate plate, and flat keys matched and arranged in the key grooves, screw holes are formed in the tops of the left gate plate or the right gate plate, screws are matched and arranged in the screw holes, through holes are formed in the positions, corresponding to the screw holes, of the flat keys, and the screws penetrate through the through holes in the flat keys and then are screwed into the screw holes. Preferably, the two inner bosses are symmetrical at 92-95 degrees in the annular groove. Preferably, the two outer bosses are symmetrical at 85-87 degrees on the annular table. Preferably, the sealing surfaces of the valve seat, the left flashboard and the right flashboard and the contact surfaces between the left flashboard and the right flashboard are made of stetree hard alloy. Preferably, a positioning mechanism which is longitudinally fixed with the valve rod and circumferentially rotates is arranged at the top of the double-flashboard structure. The innovation points of the utility model are as follows: The snap-in flashboard matching structure is characterized in that an annular groove and a symmetrical inner boss (92-95 degrees) are arranged on the right side of a left flashboard, an annular table and a symmetrical outer boss (85-87 degrees) are arranged on the left side of a right flashboard, micro-movement of the left flashboard and the right flashboard is realized through clearance fit, pressure is quickly released through displacement when a valve is opened, and opening torque is reduced; The flat key quick-dismantling positioning structure is characterized in that key grooves and flat keys are formed in the tops of the left gate plate and the right gate plate, and the flat keys are fixed through screws; The valve seat, the flashboard sealing surface and the contact surface are all made of stetree hard alloy through surfacing, and are subjected to finish machining and grinding processes to replace common metal or coating materials, so that the friction resistance, corrosion resistance and high temperature resistance of the sealing surface are improved, the service life of the valve is prolonged, the stetree hard alloy sealing surface is also arranged between the left flashboard and the right flashboard, and compared with the conventional double flashboard, one sealing surface is added, and the sealing effect is improved. The utility model comprehensively solves the problems of poor sealing performance, complex