Device for preventing valve from being touched by mistake

Abstract

The utility model belongs to the technical field of valve maintenance and protection, and discloses an anti-accidental-touch device for a valve. The valve is installed on a pipeline, the valve mistaken touch prevention device comprises a sleeve, a fastening piece and a traction piece, the sleeve is arranged on a valve handle of the valve in a sleeving mode, and a fastening hole is formed in the wall of the sleeve; the fastening piece is arranged in the fastening hole, and the sleeve and the valve handle can be fixedly connected through the fastening piece; the traction piece is arranged on the sleeve, the traction piece is connected to the pipeline, and the traction piece is located on the side opposite to the operation direction of the valve handle. The utility model solves the problems of high improvement cost, strong limitation, influence on clear observation of the state of the valve, inconvenience in operation, unsuitability for valves with different sizes, incapability of meeting the conditions of diversified pipelines and valve handles and the like in the conventional measures for preventing the valve from being mistakenly touched.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve maintenance protection technical field especially relates to a valve anti -accidental device. BACKGROUND

[0002] In power station and other industrial fields, the normal operation of system equipment is very important. Among them, the accidental touch problem of valve has been a key factor affecting system reliability and safety. Once the valve is accidentally touched, it will cause the change of its unexpected state, which may cause equipment damage, personnel injury and even serious consequences such as major economic losses. Especially in the field of nuclear power station, this accidental touch may even threaten the nuclear safety.

[0003] At present, the industry has taken some conventional methods to avoid valve accidental touch. Some valves are provided with locking mechanism when they are shipped, but most of them are not. For these valves without locking device, the common treatment methods have many disadvantages. For example, using valve replacement or handle replacement method not only has high modification cost, but also has specific requirements for the inherent structure of valve body, which has great limitations, and in the process of equipment modification, it is likely to cause the change of valve core state, and then affect the operation mode. Handle removal method is only suitable for specific types of valves, that is, the valve can be directly operated after the handle is removed and the handle is covered. Its application range is limited. If the valve is covered with a shell, it can prevent accidental touch to a certain extent, but it will make the operator unable to clearly check the valve state from the outside, and it is very inconvenient to operate the valve when the shell is removed. In addition, the shell needs to be specially made according to the length of the valve and the thickness of the pipe, which is difficult to meet the locking needs of a large number of valves with different sizes. The chain or iron wire binding method is difficult to implement for the gas source pipeline with handle perpendicular to the pipeline and thin pipeline, and the locking quality is unstable due to the different operation levels of different personnel, which may change the valve state and is not conducive to the convenient operation of the operator. The special clamp purchased in the market is designed for fixed pipeline size, which cannot meet the complex needs of valve handle length, pipeline thickness and installation direction (vertical pipeline and horizontal pipeline) in large power stations and other places.

[0004] In summary, the existing technology has obvious defects in solving the problem of valve anti-accidental touch, and there is an urgent need for a technical solution that can overcome the above defects, effectively prevent accidental touch for all types of valves, and is not affected by factors such as valve size, pipeline thickness and installation direction. UTILITY MODEL CONTENT

[0005] The utility model discloses a valve anti -accidental touch device, and it is designed to solve the problems of high modification cost, strong limitation, affecting seeing the valve state, inconvenient operation, not applicable to the valve with inconsistent size, unable to meet the diversified pipeline and valve handle condition and other problems in the existing valve anti -accidental touch measures, realize the anti -accidental touch measure of all types of valve implementation not being influenced by the valve size, pipeline thickness, installation direction and other factors.

[0006] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0007] A valve anti -accidental touch device, the valve is installed on the pipeline, and the valve anti -accidental touch device comprises:

[0008] The sleeve is sleeved on the valve handle, and the sleeve wall is provided with a fastening hole;

[0009] Fastener, the fastener is arranged in the fastening hole, and the sleeve and the valve handle can be fixedly connected;

[0010] Pulling piece, the pulling piece is arranged on the sleeve, the pulling piece is connected to the pipeline, and the pulling piece is located on the side opposite to the operating direction of the valve handle.

[0011] As a preferred scheme of a valve anti -accidental touch device, it further comprises a clamp, the two ends of the pulling piece are provided with the clamp, and the two ends of the pulling piece are arranged on the pipeline through the clamp.

[0012] As a preferred scheme of a valve anti -accidental touch device, a bushing is arranged between the clamp and the pipeline.

[0013] As a preferred scheme of a valve anti -accidental touch device, it further comprises at least two guide pieces, the guide piece is arranged on the sleeve, and the guide piece is arranged along the axial direction of the sleeve, and the pulling piece is arranged in the guide piece.

[0014] As a preferred scheme of a valve anti -accidental touch device, the guide piece is annular structure.

[0015] As a preferred scheme of a valve anti -accidental touch device, it further comprises a warning piece, and the warning piece is hung on the pulling piece.

[0016] As a preferred scheme of a valve anti -accidental touch device, the pulling piece is steel wire rope.

[0017] As a preferred scheme of a valve anti -accidental touch device, the fastener is bolt, and the end of the fastener close to the valve handle is provided with a non - slip pad.

[0018] As a preferred scheme of a valve anti -accidental touch device, the sleeve and the fastener are metal parts.

[0019] As a preferred valve anti-misoperation device, the outer surface of the sleeve is provided with a warning mark.

[0020] Advantages:

[0021] The valve anti-misoperation device provided by the utility model has the advantages that the sleeve is sleeved on the valve handle of the valve, the fastener is connected with the fastening hole on the sleeve wall and abuts against the valve handle, the pulling member is arranged on the sleeve and connected with the pipeline and located on the side opposite to the operation direction of the valve handle, the sleeve is fixed on the valve handle through the fastener, the pulling member is arranged on the opposite direction of the operation direction of the valve to pull the sleeve, the movement of the valve is limited, the purpose of preventing misoperation is achieved, the device has the advantages of simple structure, light weight, low cost, convenient installation, adaptability to various environments and no influence of the size of the valve, the thickness of the pipeline and the installation direction (vertical pipeline or horizontal pipeline). BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a schematic view of the valve anti-misoperation device of the utility model;

[0023] Fig. 2 is a schematic view of the structure of the valve anti-misoperation device installed on the valve handle when the valve is in the closed state;

[0024] Fig. 3 is a schematic view of the structure of the valve anti-misoperation device installed on the valve handle when the valve is in the open state.

[0025] In the drawings:

[0026] 1, pipeline; 2, valve handle; 3, sleeve; 4, fastener; 5, pulling member; 6, clamp; 7, guide member; 8, marking member. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings and not all the structures.

[0028] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through the indirect connection of intermediate medium, can be two elements internal communication or two element mutual action relation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the direct contact of the first and second features, also can include the contact of the first and second features not direct contact but through the contact between other features between them. Moreover, the first feature is "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0030] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "right", etc. is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0031] As Figs. 1-3As shown, the valve anti-misoperation device provided in the embodiment is installed on a pipeline 1, and comprises a sleeve 3, a fastener 4 and a pulling member 5. The sleeve 3 is sleeved on a valve handle 2 of the valve, a fastening hole is formed in the wall of the sleeve 3, and the sleeve 3 can adapt to valve handles 2 of different sizes. The fastener 4 is connected with the fastening hole and abuts against the valve handle 2, and is used for firmly fixing the sleeve 3 on the valve handle 2 to prevent displacement or falling of the sleeve 3 when the sleeve 3 is accidentally bumped, so as to cause failure of the device and change the opening and closing state of the valve. In the embodiment, the fastener 4 can be a bolt, which is screwed into the fastening hole and abuts against the valve handle 2 to fix the sleeve 3 on the valve handle 2. The pulling member 5 is arranged on the sleeve 3 and connected with the pipeline 1 and located in the opposite direction of the movement direction of the valve handle 2. The main function of the pulling member 5 is to apply a reverse pulling force to the sleeve 3 and the valve handle 2 to prevent the valve from rotating unexpectedly due to accidental collision. The pulling member 5 can be arranged in two ways. In one way, one end of the pulling member 5 is fixedly connected with the sleeve 3, and the other end of the pulling member 5 is connected with the pipeline 1. In the other way, the pulling member 5 is arranged in the sleeve 3, and both ends of the pulling member 5 are connected with the pipeline 1. In the embodiment, the second way is selected to arrange the pulling member 5, so that the arrangement can adapt to different pipeline scenes, thereby facilitating adjustment of the length of the pulling member 5 on both sides of the sleeve 3. Meanwhile, the pulling member 5 is made of a steel wire rope, which has high strength and flexibility and can adapt to different installation environments and pulling force requirements.

[0032] Preferably, the valve anti-misoperation device further comprises a clamp 6, both ends of the pulling member 5 are provided with the clamp 6, and both ends of the pulling member 5 are arranged on the pipeline 1 through the clamp 6. The design of the clamp 6 can make the pulling member 5 more stably connected with the pipeline 1, and also facilitates disassembly and assembly and adjustment and installation according to the actual size of the pipeline 1. In order to protect the surface of the pipeline 1 and enhance the friction between the clamp 6 and the pipeline 1, prevent the clamp 6 from sliding on the pipeline 1 when the valve handle 2 is accidentally bumped, and cause unexpected rotation of the valve, a bushing is arranged between the clamp 6 and the pipeline 1. The bushing is long strip-shaped and made of rubber, and can be wrapped on a predetermined position of the pipeline 1.

[0033] Preferably, the valve anti-misoperation device further comprises a plurality of guides 7, the plurality of guides 7 are arranged on the sleeve 3, the plurality of guides 7 are arranged at intervals along the axial direction of the sleeve 3, and the pulling member 5 is arranged in the plurality of guides 7. In the embodiment, two guides 7 are arranged in a ring shape, which facilitates smooth passage of the pulling member 5 and also ensures that the pulling member 5 will not fall off. In other embodiments, a plurality of guides 7 can be arranged according to actual conditions, but all within the scope of the utility model. The function of the guide 7 is to more smoothly adjust the relative distance between the clamp 6 at both ends of the pulling member 5 and the sleeve 3, so as to adapt to different installation environments and broaden the use scenarios.

[0034] Preferably, the valve anti-misoperation device further comprises a warning member 8 hung on the pulling member 5 for reminding the operator of the anti-misoperation state of the valve, avoiding accidents caused by misoperation due to negligence, in the embodiment, the warning member 8 is a pendant hung on the pulling member 5 and located between the two guide members 7, a valve anti-misoperation device integrated support is avoided to cause foreign matter management problems caused by the loss of the warning member 8 in the later period, and the pendant can also be located near the sleeve 3, which is more eye-catching; in addition, warning marks can also be arranged on the outer surface of the sleeve 3, which can be pasted by using stickers or can be painted, further enhancing the warning effect and reminding the personnel of the anti-misoperation state of the valve at all times, reducing the risk of misoperation from multiple angles and improving the safety of equipment operation.

[0035] Preferably, the fastener 4 is provided with a non-slip pad at one end close to the valve handle 2, the non-slip pad is made of plastic material, so as to enhance the friction and further ensure the fastening effect, and at the same time, damage to the valve handle caused by the fastener 4 can be avoided, and the service life of the valve is improved.

[0036] Preferably, the sleeve 3, the fastener 4, the clamp 6 and the guide member 7 are all metal parts, so that the valve anti-misoperation device has guaranteed quality, high strength and is not easy to be damaged, and the protection against misoperation is more reliable.

[0037] The following is the installation steps of the valve anti-misoperation device:

[0038] Method one:

[0039] The sleeve 3 is sleeved on the valve handle 2 of the valve, the sleeve 3 is ensured to be tightly attached to the valve handle 2, and then the sleeve 3 is firmly fixed on the valve handle 2 by using the fastener 4. In this process, attention should be paid to adjusting the position of the sleeve to make it in a suitable working state, and at the same time, unnecessary damage to the valve handle should be avoided.

[0040] According to the actual pipeline situation on site, the positions of the two fixed clamps 6 are carefully adjusted. In the adjustment process, factors such as the thickness of the pipeline, the installation direction of the valve and the tension distribution of the pulling member 5 should be fully considered, for example, as shown in Fig. 2 When the valve is in a closed state, the valve handle 2 is perpendicular to the pipeline 1, the two clamps 6 should be fixed on the opposite sides of the pipeline 1 in the movable direction of the valve handle 2; as shown in Fig. 3 When the valve is in an open state, the valve handle 2 is parallel to the pipeline 1, the two clamps 6 can be fixed on the same side of the pipeline 1 of the valve handle 2; the length of the pulling member 5 is adjusted by adjusting the number of turns of the pulling member 5 wound on the pipeline 1 until the pulling member 5 is taut to achieve the best anti-misoperation effect.

[0041] When the clamp 6 is fastened and installed, a rubber bushing is arranged between the clamp 6 and the pipeline 1, which can protect the pipeline 1 and prevent the clamp 6 from sliding on the pipeline 1, and the clamp 6 is generally not disassembled after being fastened and installed.

[0042] Mode two:

[0043] The sleeve 3 is sleeved on the valve handle 2, at this time, the clamp 6 is installed first, and after the position of the clamp 6 is determined, the length of the pulling member 5 is adjusted by adjusting the number of turns of the pulling member 5 wound on the pipeline 1, and then the fastener 4 is screwed in, at this time, there is a gap between the inner wall of the side of the sleeve 3 facing the pulling member 5 and the valve handle 2, as the fastener 4 is screwed into the sleeve 3 and abuts against the valve handle 2, the gap between the inner wall of the side of the sleeve 3 facing the pulling member 5 and the valve handle 2 is eliminated, so that the pulling member 5 is tensioned and taut. In addition, screwing the fastener 4 can also be used to compensate for the situation that the pulling member 5 is loose due to long-term use, so as to ensure that the valve anti-misoperation device always maintains good anti-misoperation performance.

[0044] When the valve needs to be operated, first, the fastener 4 is loosened, the valve handle 2 is separated from the sleeve 3, and then the sleeve 3 is pulled out, at this time, the valve can be normally operated, after the operation is completed, the sleeve 3 and the fastener 4 are reinstalled according to the above steps, and the anti-misoperation state of the valve is restored.

[0045] In summary, the valve anti-misoperation device effectively solves many problems existing in the prior art valve anti-misoperation technology, has obvious innovation and practicality, has important significance for ensuring the safe and stable operation of industrial production, and has wide application prospect in power stations and other industrial fields.

[0046] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A valve anti-poking device, said valve being mounted on a pipe (1), characterized in that, The valve anti-misoperation device comprises: a sleeve (3) sleeved on a valve handle (2) of the valve, a fastening hole being formed in a barrel wall of the sleeve (3); a fastener (4) arranged in the fastening hole and capable of fixedly connecting the sleeve (3) and the valve handle (2); a pulling member (5) arranged on the sleeve (3), the pulling member (5) being connected to the pipeline (1) and located on a side opposite to an operation direction of the valve handle (2).

2. The valve chafe device of claim 1, wherein Further comprising a clamp (6), both ends of the pulling member (5) are provided with the clamp (6), and both ends of the pulling member (5) are arranged on the pipeline (1) through the clamp (6).

3. The valve chafe device of claim 2, wherein, A bushing is arranged between the clamp (6) and the pipeline (1).

4. The valve chafe device of claim 1, wherein Further comprising at least two guides (7) arranged on the sleeve (3), the guides (7) being spaced apart along an axial direction of the sleeve (3), and the pulling member (5) being arranged through the guides (7).

5. The valve chafe device of claim 4, wherein, The guide (7) is in a ring structure.

6. The valve chafe device of claim 1, wherein, Further comprising a warning member (8) hung on the pulling member (5).

7. The valve chafe device of claim 1, wherein The pulling member (5) is a steel wire rope.

8. The valve chafe device of claim 1, wherein, The fastener (4) is a bolt, and an anti-skid pad is arranged at one end of the fastener (4) close to the valve handle (2).

9. The valve chafe device according to any one of claims 1-8, characterized in that The sleeve (3) and the fastener (4) are metal parts.

10. The valve chafe device according to any one of claims 1-8, characterized in that An outer surface of the sleeve (3) is provided with a warning mark.

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