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CN-224214815-U - Heavy-calibre regulation trip valve

CN224214815UCN 224214815 UCN224214815 UCN 224214815UCN-224214815-U

Abstract

The utility model relates to the technical field of valves, in particular to a large-caliber adjusting and cutting valve which comprises a valve cover cylinder fixedly arranged at the top of a valve body, wherein a magnetic block is fixedly arranged on the inner top wall of the valve cover cylinder, a fixing piece is fixedly arranged on the inner side of the valve cover cylinder, an electromagnetic coil is arranged on the inner side of the fixing piece, and a first valve rod is movably arranged on the inner side of the valve cover cylinder. The magnetic attraction of the magnetic block to the iron column can enable the iron column to drive the first valve rod to enable the sealing plug to be opened, gas can pass through the through hole through the air inlet nozzle and is circulated and conveyed through the air outlet nozzle, continuous power supply consumption of the storage battery inside the installation box is avoided, when ventilation is required to be cut off, the storage battery inside the installation box is used for electrifying the electromagnetic coil, the top end of the iron column is enabled to generate the same magnetism with the magnetic block through the electromagnetic coil, the iron column is enabled to be separated from the magnetic block to enable the sealing plug to seal the through hole under the elastic action of the spring, and ventilation is cut off.

Inventors

  • ZHU XIAOQI
  • YANG JIANBO
  • DONG WANBING

Assignees

  • 无锡和佳仪器仪表有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (7)

  1. 1. The large-caliber adjusting and cutting-off valve comprises a valve cover cylinder (2) fixedly arranged at the top of a valve body (1), and is characterized in that a magnetic block (12) is fixedly arranged on the inner top wall of the valve cover cylinder (2), a fixing piece (11) is fixedly arranged on the inner side of the valve cover cylinder (2), an electromagnetic coil (17) is arranged on the inner side of the fixing piece (11), a first valve rod (10) is movably arranged on the inner side of the valve cover cylinder (2), an iron column (15) attracted with the magnetic block (12) is arranged on the top thread of the first valve rod (10), a sealing plug (8) is fixedly arranged at the bottom end of the first valve rod (10), a second valve rod (13) is connected with the top thread of the iron column (15), and a spring (9) is sleeved on the outer side of the first valve rod (10).
  2. 2. The large-caliber adjusting shut-off valve according to claim 1, wherein a mounting box (3) is fixedly mounted on the right side of the valve cover cylinder (2), a storage battery for power supply is arranged on the inner side of the mounting box (3), and the storage battery is electrically connected with the electromagnetic coil (17).
  3. 3. The large-caliber adjusting shut-off valve according to claim 1, wherein an air inlet nozzle (4) is arranged on the left side of the valve body (1), an air outlet nozzle (5) is arranged on the right side of the valve body (1), and a dividing plate (6) for separating the air inlet nozzle (4) from the air outlet nozzle (5) is fixedly arranged on the inner side of the valve body (1).
  4. 4. The large-caliber adjusting shut-off valve according to claim 3, wherein a through hole (7) is formed in the inner side of the partition plate (6), and a sealing gasket matched with the through hole (7) is arranged at the bottom of the sealing plug (8).
  5. 5. The large-caliber adjusting shut-off valve according to claim 1, wherein a fixed block (16) is fixedly arranged on the inner side of the valve cover cylinder (2), and a damping sleeve (14) matched with the spring (9) is fixedly arranged at the center of the fixed block (16).
  6. 6. The large-caliber adjusting shut-off valve according to claim 1, wherein the second valve rod (13) penetrates through the top of the valve cover cylinder (2), the second valve rod (13) is located on the inner side of the magnetic block (12), the second valve rod (13) is movably sleeved with the magnetic block (12), and the iron column (15) is located on the inner side of the fixing piece (11) and is spaced.
  7. 7. The large-caliber adjusting shut-off valve according to claim 5, wherein the top end of the spring (9) is fixedly connected with the bottom of the fixed block (16), and the bottom end of the spring (9) is fixedly connected with the top of the sealing plug (8).

Description

Heavy-calibre regulation trip valve Technical Field The utility model relates to the technical field of valves, in particular to a large-caliber adjusting shut-off valve. Background The cut-off valve is an actuating mechanism in an automatic system, consists of a multi-spring pneumatic film actuating mechanism or a floating piston actuating mechanism and an adjusting valve, receives signals of an adjusting instrument, controls the cutting-off, switching-on or switching-over of fluid in a process pipeline, has the characteristics of simple structure, sensitive response and reliable action, and has wide application range, and can be used for cutting off coal gas, combustion air, cold air, smoke and the like. In the prior art, as the 'gas shut-off valve' with the Chinese patent publication number of CN221347880U is provided with the electromagnetic valve control device, the electromagnetic coil stops working under the condition of power failure, so that the suction force of the movable iron core disappears and falls down, and the valve core at the lower end of the valve rod is overlapped with the valve seat to finish the valve closing, thereby facilitating the use of equipment, avoiding manual operation and protecting the safety of personnel. In the prior art, in the ventilation process, the electromagnetic valve control device needs to be kept powered to ensure that the electromagnetic coil generates magnetic force, so that the valve rod is kept at the opening position, and the continuous power supply consumes more electric energy. Disclosure of utility model The utility model aims to provide a large-caliber adjusting cut-off valve, which has the characteristic of saving electric energy. In order to achieve the purpose, the large-caliber adjusting and cutting valve comprises a valve cover cylinder fixedly arranged at the top of a valve body, a magnetic block is fixedly arranged on the inner top wall of the valve cover cylinder, a fixing piece is fixedly arranged on the inner side of the valve cover cylinder, an electromagnetic coil is arranged on the inner side of the fixing piece, a first valve rod is movably arranged on the inner side of the valve cover cylinder, an iron column which is attracted with the magnetic block is arranged on the top thread of the first valve rod, a sealing plug is fixedly arranged at the bottom end of the first valve rod, a second valve rod is connected with the top thread of the iron column, and a spring is sleeved on the outer side of the first valve rod. In order to provide electric energy, as a preferable large-caliber adjusting and cutting valve of the utility model, a mounting box is fixedly arranged on the right side of the valve cover cylinder, a storage battery for power supply is arranged on the inner side of the mounting box, and the storage battery is electrically connected with the electromagnetic coil. In order to facilitate ventilation, the large-caliber adjusting and cutting valve is preferable in that an air inlet nozzle is arranged on the left side of the valve body, an air outlet nozzle is arranged on the right side of the valve body, and a partition plate for partitioning the air inlet nozzle from the air outlet nozzle is fixedly arranged on the inner side of the valve body. In order to facilitate sealing and butt joint, the large-caliber adjusting cut-off valve is preferable in the utility model, a through hole is formed in the inner side of the dividing plate, and a sealing gasket matched with the through hole is arranged at the bottom of the sealing plug. In order to provide damping effect, as a preferable large-caliber adjusting cut-off valve, a fixed block is fixedly arranged on the inner side of the valve cover cylinder, and a damping sleeve matched with the spring is fixedly arranged in the center of the fixed block. In order to facilitate use, as a preferable large-caliber adjusting cut-off valve, the second valve rod penetrates through the top of the valve cover cylinder, the second valve rod is positioned on the inner side of the magnetic block and is movably sleeved with the magnetic block, and the iron column is positioned on the inner side of the fixing piece and is spaced. For better sealing butt joint, as a preferable large-caliber adjusting cut-off valve, the top end of the spring is fixedly connected with the bottom of the fixed block, and the bottom end of the spring is fixedly connected with the top of the sealing plug. Compared with the prior art, the utility model has the following beneficial effects: the magnetic attraction to the iron pillar can enable the iron pillar to drive the first valve rod to enable the sealing plug to be opened, gas can pass through the through hole through the air inlet nozzle and circulate and be conveyed through the air outlet nozzle, continuous power supply consumption of the storage battery inside the installation box is avoided, when ventilation is required to be cut off, the storage battery inside the insta