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CN-224201235-U - Valve straight handle spiral locking device, valve straight handle and valve

CN224201235UCN 224201235 UCN224201235 UCN 224201235UCN-224201235-U

Abstract

The utility model relates to a spiral locking device of a valve straight handle, the valve straight handle and the valve, the spiral locking device comprises a locking part, a mounting part and a limiting part, the locking part is arranged on the valve straight handle in a reciprocating manner along the valve straight handle, the locking part is in clamping fit with a valve body of the valve when being in a locking position, the locking part is separated from the valve body when being in an unlocking position, the mounting part is fixedly arranged on the valve straight handle, the limiting part is arranged on the mounting part in a spiral feeding manner, when the spacing part is used for screwing the valve straight handle to the distance between the limiting part and the valve straight handle is smaller than the minimum preset distance for the locking part to pass through, the locking part is prevented from reciprocating between the locking position and the unlocking position, and when the spacing between the limiting part and the valve straight handle is larger than or equal to the minimum preset distance, the locking part can reciprocate between the locking position and the unlocking position.

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 screw lock 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 is used for being fixedly arranged on the valve straight handle (200); The limiting component (140) is arranged on the mounting component in a screw feeding mode, the limiting component (140) is used for screw feeding to the valve straight handle (200) until the distance between the limiting component (140) and the valve straight handle (200) is smaller than the minimum preset distance for the locking component (110) to pass through, the locking component (110) is prevented from reciprocating between the locking position and the unlocking position, the limiting component (140) is used for screw feeding to the direction away from the valve straight handle (200) until the distance between the limiting component (140) and the valve straight handle (200) is larger than or equal to the minimum preset distance, and the locking component (110) can reciprocate between the locking position and the unlocking position.
  2. 2. The spiral 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 valve straight handle spiral locking device according to claim 1, wherein the clamping portion (112) comprises two clamping plates which are arranged in a coplanar manner, a clamping groove (113) is formed between the two clamping plates, and the clamping plates incline from one end connected with the connecting portion (111) to a direction away from the valve straight handle (200).
  4. 4. A valve straight handle screw-type locking device according to any one of claims 1-3, wherein the valve straight 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 the parallel condition, two ends of the neck part (220) are respectively connected with the holding part (210) and the head part (230), the neck part (220) is obliquely arranged relative to the holding part (210) and the head part (230), the mounting part comprises a base part (120) and an assembling part (130), the base part (120) is detachably connected with the holding part (210), a first end of the assembling part (130) is connected with the base part (120), a second end of the assembling part (130) extends above the neck part (220), and the limiting part (140) is arranged at a second end of the assembling part (130).
  5. 5. The valve straight handle screw type locking device according to claim 4, wherein the base (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 (150), one end of the vertical plate (122) is connected to the base plate (121), the other end of the vertical plate stands away from the base plate (121), the assembly portion (130) comprises a first assembly plate (131) and a second assembly plate (132), a first end of the first assembly plate (131) is connected to the vertical plate (122), a second end of the first assembly plate (131) extends towards the neck portion (220), the second assembly plate (132) is connected to a second end of the first assembly plate (131), and the second end of the second assembly plate (132) serving as the assembly portion (130) and the neck portion (220) meet the parallel condition.
  6. 6. The valve in-line handle screw latch according to claim 5, wherein the limit member (140) comprises: A fixing member (141), the fixing member (141) being fixed to the second fitting plate (132), the fixing member (141) being provided with a guide groove (1411), the guide groove (1411) extending in a feeding direction; The rotating piece (142) is rotatably sleeved outside the fixing piece (141), and a spiral groove (1421) extending spirally along the feeding direction is formed in the rotating piece (142); The feeding piece (143), feeding piece (143) can be followed feeding direction reciprocal slidable set up in mounting (141), feeding piece (143) set up drive guide arm (1431), drive guide arm (1431) pass guide slot (1411), with spiral groove (1421) sliding fit.
  7. 7. The valve straight handle spiral locking device according to claim 6, wherein the fixing piece (141) is provided with limiting grooves (1412) communicated with the guide grooves (1411) at two ends of the guide grooves (1411), the limiting grooves (1412) extend in a direction away from the guide grooves (1411) along a preset direction, and the preset direction is set at an included angle with the feeding direction.
  8. 8. The valve in-line handle screw lock according to claim 6, characterized in that the neck (220) is provided with a limiting hole (221) towards the position of the feeding member (143), said limiting hole (221) being intended to cooperate with the feeding member (143).
  9. 9. Valve in-line handle, characterized in that the valve in-line handle (200) is provided with a valve in-line handle screw-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 spiral locking device, valve straight handle and valve Technical Field The utility model relates to the technical field of valves, in particular to a valve straight handle spiral locking device, a valve straight handle and a 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 valve straight handle spiral locking device, so that the valve straight handle can be locked, and abnormal change of the valve opening caused by mistakenly touching the valve handle in field use is avoided, and the usability of the system is further affected. The second object of the utility model is to provide a valve straight handle and a valve comprising the valve straight handle spiral locking device. In order to achieve the above purpose, the present utility model provides the following technical solutions: A valve in-line handle screw lock 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 is arranged on the mounting component in a spiral feeding manner, when the distance between the limiting component and the valve straight handle is smaller than the minimum preset distance for the locking component to pass through, the locking component is prevented from reciprocating between the locking position and the unlocking position, and when the distance between the limiting component and the valve straight handle is larger than or equal to the minimum preset distance, the locking component can reciprocate between the locking position and the unlocking position. 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, the neck part is obliquely arranged relative to the holding part and the head part, the mounting part comprises a base part and an assembling part, the base part is detachably connected with the holding part, the first end of the assembling part is connected with the base part, the second end of the assembling part extends to the upper part of the neck part, and the limiting part is arranged at the second end of the assembling part. In one embodiment of the present application, the base includes a base plate and a riser, the base plate and the grip portion are connected by at least two screw fasteners, one end of the riser is connected to the base plate, the other end of the riser stands up in a direction away from the base plate, the assembly portion includes a first assembly plate and a second assembly plate, the first end of the first assembly plate is connected to the riser, the second end of the first assembly plate extends toward the neck portion, the second assembly plate is connected to the second end of the first