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CN-224201236-U - Valve straight handle lever type locking device, valve straight handle and valve

CN224201236UCN 224201236 UCN224201236 UCN 224201236UCN-224201236-U

Abstract

The utility model relates to a lever type locking device for a valve straight handle, the valve straight handle and the valve, the lever type locking device comprises a locking part, a mounting part and a limiting part, the locking part comprises a connecting part and a clamping part arranged on the connecting part, the connecting part is arranged on the valve straight handle in a reciprocating manner along the valve straight handle, the clamping part is matched with a valve body in a clamping manner when the locking part is positioned at a locking position, and the clamping part is separated from the valve body when the locking part is positioned at an unlocking position; the limiting component comprises an assembling part, a stopping part and an elastic part, wherein the assembling part is rotatably arranged on the mounting component, the stopping part is arranged on the assembling part, the elastic part is arranged between the assembling part and the mounting component, and the elastic part is used for applying acting force to the assembling part to enable the position of the assembling part, where the stopping part is arranged, to approach the valve straight handle, so that the stopping part has a trend of keeping the distance between the stopping part and the valve straight handle smaller than the minimum preset distance.

Inventors

  • WANG YANQI
  • HUANG SHILEI
  • Sui Shuang
  • GUO HAIQI
  • QI JIHE

Assignees

  • 辽宁红沿河核电有限公司

Dates

Publication Date
20260505
Application Date
20250520

Claims (10)

  1. 1. A valve in-line handle lever latch comprising: The locking component (110), the locking component (110) comprises a connecting part (111) and a clamping part (112) arranged on the connecting part (111), the connecting part (111) is arranged on the valve straight handle (200) in a reciprocating manner along the valve straight handle (200), when the locking component (110) is in a locking position, the clamping part (112) is matched with the valve body in a clamping manner so as to prevent the valve straight handle (200) from rotating relative to the valve body, and when the locking component (110) is in an unlocking position, the clamping part (112) is separated from the valve body; The mounting component (120) is used for being fixedly arranged on the valve straight handle (200); Spacing part (130), including assembly portion (131), stop part (132) and elastic part (133), assembly portion (131) rotationally set up in installation component (120), stop part (132) set up in assembly portion (131), elastic part (133) set up in assembly portion (131) with between installation component (120), elastic part (133) are used for exerting to assembly portion (131) make assembly portion (131) install the effort that position of stop part (132) was drawn close to valve straight handle (200), so that stop part (132) have keep with the interval of valve straight handle (200) is less than can supply locking component (110) pass through minimum preset distance's trend.
  2. 2. The lever type locking device for the valve straight handle according to claim 1, wherein the connecting portion (111) is of an annular structure, the connecting portion (111) is sleeved on the valve straight handle (200), and the connecting portion (111) is in rotary fit with the valve straight handle (200).
  3. 3. The lever-type locking device for a valve in-line handle according to claim 1, wherein the locking portion (112) comprises two locking plates arranged in a coplanar manner, a locking groove (113) is formed between the two locking plates, and the locking plates incline from one end connected with the connecting portion (111) to a direction away from the valve in-line handle (200).
  4. 4. A valve in-line handle lever type locking device according to any one of claims 1-3, wherein the valve in-line handle (200) comprises a holding part (210), a neck part (220) and a head part (230), the holding part (210) and the head part (230) meet a parallel condition, two ends of the neck part (220) are respectively connected with the holding part (210) and the head part (230), and the neck part (220) is obliquely arranged relative to the holding part (210) and the head part (230).
  5. 5. The lever-type locking device for a valve in-line handle according to claim 4, wherein the mounting component (120) comprises a base plate (121) and a vertical plate (122), the base plate (121) and the holding portion (210) are connected through at least two threaded fasteners (140), two vertical plates (122) are symmetrically arranged on the base plate (121), and the assembly portion (131) is rotatably connected with the two vertical plates (122) through a rotating shaft.
  6. 6. A valve in-line handle lever type locking device according to any one of claims 1-3, wherein the elastic portion (133) is a compression spring, and the limiting portion and the elastic portion (133) are respectively disposed at two sides of the rotation shaft of the assembly portion (131).
  7. 7. The lever-type locking device for the valve straight handle according to claim 6, wherein the valve straight handle (200) is provided with a limiting hole, one end of the limiting part, which is far away from the assembling part (131), is provided with a step shaft structure, a limiting step surface is formed between a large end and a small end of the step shaft structure, the small end of the step shaft structure is used for being inserted into the limiting hole, and the limiting step surface is used for being in contact fit with the surface of the valve straight handle (200) facing the assembling part (131).
  8. 8. The valve in-line handle lever type locking device according to claim 6, wherein one of the connecting part (111) and the valve in-line handle (200) is provided with a spring pin, and the other of the connecting part (111) and the valve in-line handle (200) is provided with a pin groove, and the spring pin and the pin groove cooperate to fix the locking member (110) in the locking position.
  9. 9. Valve in-line handle, characterized in that the valve in-line handle (200) is provided with a valve in-line handle lever-type locking device according to any one of claims 1-8.
  10. 10. A valve, characterized in that the handle of the valve is a valve in-line handle (200) according to claim 9.

Description

Valve straight handle lever type locking device, valve straight handle and valve Technical Field The utility model relates to the technical field of valves, in particular to a lever type locking device for a straight handle of a valve, the straight handle of the valve and the valve. Background The plant interior space of the nuclear power station is limited, equipment such as pipelines, valves, control cabinets, cables and the like are very tightly installed, and meanwhile, the equipment is generally distributed on a multi-layer platform, and the distance between the upper layer and the lower layer is relatively short. The risk of false bumps increases when personnel move in narrow passages, when complex repairs or inspections occur, when certain areas are under-lit or the equipment is blocking vision. The reason that the investigator touches the valve by mistake is that the valve opening does not have a locking device, and the valve opening is changed after touching the valve handle by the investigator. The conventional isolation means locks the valve handle by additionally arranging a chain, so that the valve handle can not be locked, can still rotate within a certain range, and cannot meet the use environment with strict requirements on incorrect collision of nuclear power. Disclosure of utility model The first aim of the utility model is to provide a lever type locking device for a valve straight handle, which can lock the valve straight handle, and avoid abnormal change of the valve opening caused by mistakenly touching the valve handle during field use, thereby affecting the usability of the system. The second object of the utility model is to provide a valve straight handle and a valve comprising the valve straight handle lever type locking device. In order to achieve the above purpose, the present utility model provides the following technical solutions: a valve in-line handle lever type locking device comprising: The locking component comprises a connecting part and a clamping part arranged on the connecting part, the connecting part is arranged on the valve straight handle in a reciprocating manner along the valve straight handle, when the locking component is in a locking position, the clamping part is matched with the valve body in a clamping manner so as to prevent the valve straight handle from rotating relative to the valve body, and when the locking component is in an unlocking position, the clamping part is separated from the valve body; the mounting component is used for being fixedly arranged on the valve straight handle; The limiting component comprises an assembling part, a stopping part and an elastic part, wherein the assembling part is rotatably arranged on the mounting component, the stopping part is arranged on the assembling part, the elastic part is arranged between the assembling part and the mounting component, and the elastic part is used for applying acting force to the assembling part, which enables the position of the assembling part, where the stopping part is arranged, to be close to the valve straight handle, so that the stopping part has a trend of keeping the distance between the stopping part and the valve straight handle to be smaller than the minimum preset distance for the locking component to pass through. In one embodiment of the application, the connecting part is of an annular structure, the connecting part is sleeved on the valve straight handle, and the connecting part is in rotary fit with the valve straight handle. In one embodiment of the application, the clamping portion comprises two clamping plates arranged in a coplanar manner, a clamping groove is formed between the two clamping plates, and the clamping plates incline from one end connected with the connecting portion to a direction away from the valve straight handle. In one embodiment of the application, the valve straight handle comprises a holding part, a neck part and a head part, wherein the holding part and the head part meet the parallel condition, two ends of the neck part are respectively connected with the holding part and the head part, and the neck part is obliquely arranged relative to the holding part and the head part. In one embodiment of the present application, the mounting component includes a base plate and a riser, the base plate is connected with the holding portion by at least two threaded fasteners, the two risers are symmetrically disposed on the base plate, and the assembly portion is rotatably connected with the two risers by a rotating shaft. In an embodiment of the application, the elastic portion is a compression spring, and the limiting portion and the elastic portion are respectively disposed at two sides of the rotating shaft of the assembly portion. In one embodiment of the application, the valve straight handle is provided with a limiting hole, one end of the limiting part, which is far away from the assembling part, is provided with a step shaft structure, a limiti