A handle valve anti-accidental contact device

Abstract

This invention belongs to the field of valve devices and discloses a handle valve anti-accidental contact device, comprising: a base fixed to the valve body of the handle valve; a limiting component that extends through the base and slides with the base; and a telescopic component disposed in a horizontal through hole in the base. The extensions have limiting holes that cooperate with the telescopic component to restrict the vertical movement of the limiting component relative to the base. The handle valve anti-accidental contact device of this invention achieves adjustable positioning of the limiting component through the cooperation of the telescopic component and the limiting holes. The precise cooperation between the extensions and the handle provides high limiting stability, effectively preventing accidental operation of the equipment by human error, significantly reducing human error, and ensuring the safe and stable operation of the unit.

Description

Technical Field

[0001] This invention belongs to the field of valve devices, and specifically relates to a device for preventing accidental contact with a handle valve. Background Technology

[0002] In the nuclear power field, each unit has hundreds of pneumatic valves. The gas source isolation valves used in the gas supply pipeline are mostly handle-type ball valves, which are characterized by their complex on-site distribution, high risk of accidental contact, and serious consequences. These valves are not designed with anti-accidental contact devices when they leave the factory, which poses a risk of accidental contact with the equipment due to human error on site. If the manual gas source valve is accidentally touched, it will cause the pneumatic valve to change its opening and closing status, thereby affecting the safe and stable operation of the unit. Summary of the Invention

[0003] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide a handle valve anti-accidental contact device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A handle valve anti-accidental contact device, with the thickness direction of the base as the vertical direction, includes: The base is fixed to the valve body of the handle valve and has one horizontal through hole and two vertical through holes; the two ends of the horizontal through hole are respectively connected to the two vertical through holes. The limiting component, which slides with the base, has two extensions, each extending vertically downwards through a corresponding vertical through hole and protruding outwards; the extending direction of the extensions is parallel to the length direction of the handle of the handle valve; the two extensions are located on opposite sides of the handle; each extension has a limiting hole. A telescopic component is disposed within a horizontal through hole in the base; the telescopic component cooperates with the limiting hole to restrict the limiting component from moving vertically relative to the base.

[0005] Furthermore, the base includes a body and a closing member; the body has two recesses; the closing member is connected to the opening of the recess and together with the recesses forms the vertical through hole.

[0006] Furthermore, the base has a fixing hole, and the base is fixedly installed on the valve body by a fastening member passing through the fixing hole.

[0007] Furthermore, the tightening member is a tightening band.

[0008] Furthermore, the radial dimension of the end of the extension is greater than the radial dimension of the vertical through hole, so as to restrict the limiting component from disengaging from the base in the vertical direction.

[0009] Furthermore, the end of the extension is located below the upper surface of the fixing nut of the handle valve in the vertical direction.

[0010] Furthermore, the end of the extension is located below the lower end face of the fixing nut in the vertical direction.

[0011] Furthermore, the limiting holes are a plurality of holes spaced apart along the extension direction of the extension portion, for adjusting the extension length of the limiting component relative to the base.

[0012] Furthermore, the telescopic assembly includes an elastic element and limiting elements respectively connected to both ends of the elastic element; the elastic element is used to drive the limiting elements to engage with the limiting holes of the extension portion.

[0013] Furthermore, the elastic element is a spring, and the limiting element is a limiting bead.

[0014] Furthermore, the diameter of the limiting bead is smaller than the inner diameter of the horizontal through hole, but larger than the diameter of the limiting hole.

[0015] Furthermore, the upper end of the limiting component is provided with a suspension hole, which is connected to the pipe where the handle valve is located or the valve body through a flexible suspension member to prevent the device from falling off after it becomes loose.

[0016] The implementation of this invention has the following beneficial effects: The handle valve anti-accidental contact device of the present invention achieves adjustable positioning of the limit component through the cooperation of the telescopic component and the limit hole. The extension part and the handle are precisely matched, and the limit stability is high. It can effectively prevent the equipment from being accidentally operated by humans on site, effectively reduce human error, and ensure the safe and stable operation of the unit. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-accidental contact device for the handle valve in some embodiments.

[0018] Figure 2 for Figure 1 AA sectional view.

[0019] Figure 3 This is a schematic diagram showing the installation state of the anti-accidental contact device for the handle valve in some embodiments.

[0020] in: 100-Handle valve anti-accidental contact device; 11-Base; 111-Body; 112-Closing component; 113-Fixing hole; 114-Tightening component; 12-Limiting component; 121-Extension; 122-Limiting hole; 123-Hanging hole; 13-Telescopic assembly; 131-Elastic element; 132-Limiting element; 200-Handle Valve; 21-Valve body; 22-Handle; 23-Fixing nut; 24-Pipeline. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing the present invention and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on the present invention.

[0022] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are used only for the convenience of describing the present invention and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0023] In the following embodiments, the vertical direction is the thickness direction of the base, and up and down correspond to the upper and lower parts of the thickness direction, respectively.

[0024] like Figures 1 to 3 As shown, in some embodiments, a handle valve anti-accidental contact device, with the thickness direction of the base 11 as the vertical direction, includes: The base 11 is fixed to the valve body 21 of the handle valve 200 and has one horizontal through hole and two vertical through holes. The two ends of the horizontal through hole are respectively connected to the two vertical through holes. Specifically, the vertical through holes are holes that extend in the vertical direction (thickness direction of the base 11), and the two vertical through holes are symmetrically arranged for the extension 121 of the limiting component 12 to pass through. The horizontal through holes are through holes that extend in a direction perpendicular to the vertical direction and are respectively connected to the two vertical through holes, forming an installation channel for the telescopic component 13 to be installed.

[0025] The limiting component 12, which slides with the base 11, has two extensions 121. Each extension 121 extends vertically downwards into a corresponding vertical through-hole and protrudes outwards. The extension direction of the extensions 121 is parallel to the length direction of the handle 22 of the handle valve 200. The two extensions 121 are located on opposite sides of the handle 22. Each extension 121 has a limiting hole 122. Specifically, the limiting component 12 is inverted U-shaped. The two extensions 121 correspond one-to-one with the two vertical through-holes of the base 11. When the handle 22 rotates, the extensions 121 abut against the end or side of the handle 22 to achieve limiting. The limiting hole 122 is a blind hole or a through hole, opened horizontally and coaxially arranged with the horizontal through-hole of the base 11, used to cooperate with the telescopic component 13 to achieve axial positioning of the limiting component 12 relative to the base 11.

[0026] The telescopic component 13 is disposed in the horizontal through hole of the base 11 and cooperates with the limiting hole 122 to limit the movement of the limiting component 12 relative to the base 11 in the vertical direction.

[0027] Furthermore, the handle valve 200 is a ball valve with a handle 22. The anti-accidental contact device 100 of the handle valve 200 is used to limit the rotation stroke of the handle 22 of the ball valve to prevent accidental operation of the equipment by human error on site, effectively reduce human error, ensure the safe and stable operation of the unit, and at the same time have anti-loosening and anti-falling functions, and are compatible with various ball valve installation postures.

[0028] In some embodiments, to facilitate the processing and assembly of the vertical through hole, the base 11 includes a body 111 and a closing member 112; the body 111 is provided with two recesses, the openings of the recesses facing one side, and the closing member 112 is connected to the opening of the recess by bolts or buckles, together with the recesses to form a vertical through hole, the connecting surface of the closing member 112 and the body 111 fits and seals, so as to prevent impurities from entering the through hole and affecting the sliding of the component.

[0029] In some embodiments, the base 11 is provided with a fixing hole 113, wherein the fixing hole 113 is a through hole for the fastening member 114 to pass through, so as to realize the fixed assembly of the base 11 and the valve body 21. The number of fixing holes 113 can be set to 1-2 according to the fixing requirements, and they are symmetrically arranged on both sides of the base 11 to improve the fixing stability.

[0030] In some embodiments, in order to prevent the limiting component 12 from coming off vertically relative to the base 11, the radial dimension of the end of the extension 121 is greater than the radial dimension of the vertical through hole, forming a stepped structure. When the limiting component 12 is subjected to an upward pulling force, the end step of the extension 121 can abut against the lower end face of the base 11 to achieve blocking and limiting, and prevent the limiting component 12 from coming off from the vertical through hole.

[0031] In some embodiments, the inner wall of the limiting hole 122 may be chamfered to facilitate the insertion of the telescopic component 13; the limiting holes 122 are multiple and spaced apart along the extension direction of the extension 121 to adjust the extension length of the limiting component 12 relative to the base 11. Each extension 121 has one, two, or three limiting holes 122; different limiting holes 122 can be used to adjust the extension length of the limiting component 12 relative to the base 11 to: the end of the extension 121 is located above, below, or below the upper end face of the fixing nut 23 of the handle valve 200 in the vertical direction; wherein, when located above the upper end face, the extension 121 does not restrict the rotational movement of the handle 22; when located below the upper end face, it can restrict the rotational movement of the handle 22; when located below the lower end face, the restriction of the handle 22 by the extension 121 is more significant. Therefore, when there is one limiting hole 122, the extension length of the corresponding limiting component 12 relative to the base 11 can be such that the end of the extension 121 is located below the upper end face or the lower end face of the fixing nut 23 of the handle valve 200 in the vertical direction; when there are two limiting holes 122, the extension length of the corresponding limiting component 12 relative to the base 11 can be such that the end of the extension 121 is located above the upper end face, below the upper end face, or below the lower end face of the fixing nut 23 of the handle valve 200 in the vertical direction. The combination includes above the upper end face + below the upper end face, below the upper end face + below the lower end face, etc., preferably above the upper end face + below the upper end face or above the upper end face + below the lower end face, so as to realize the adjustment of the working state and non-working state of the anti-accidental contact device 100 of the handle valve 200.

[0032] In some embodiments, the upper end of the limiting component 12 is provided with a suspension hole 123, which is a through hole and is connected to the pipe 24 or valve body 21 where the handle valve 200 is located through a flexible suspension member to prevent the device from falling off after it becomes loose. Furthermore, the diameter of the suspension hole 123 is adapted to the diameter of the flexible suspension member to avoid excessive shaking after suspension.

[0033] In some embodiments, the telescopic component 13 includes an elastic element 131 and limiting elements 132 respectively connected to both ends of the elastic element 131. In its natural state, the elastic element 131 is in a compressed state, which can drive the limiting element 132 to move towards the vertical through hole, so that the limiting element 132 is embedded in the limiting hole 122 of the corresponding extension 121, thereby positioning the limiting component 12. When it is necessary to adjust the position of the limiting component 12, the limiting component 12 is pulled up and down in the vertical direction, and the limiting element 132 is pressed into the horizontal through hole through the extension 121 of the limiting component 12, compressing the elastic element 131, so that the limiting element 132 is disengaged from the limiting hole 122, thereby pushing the limiting component 12 to slide up and down in the vertical direction, adjusting the extension length of the extension 121, and adapting to ball valve handles of different specifications.

[0034] Furthermore, the elastic element 131 is preferably a spring, the outer diameter of which is adapted to the inner diameter of the horizontal through hole to prevent the spring from shifting during extension and retraction; the limiting element 132 is preferably a limiting bead, which is a spherical structure and can be made of steel, ceramic or plastic. Its diameter is smaller than the inner diameter of the horizontal through hole and larger than the diameter of the limiting hole 122, ensuring that the limiting bead can extend and retract flexibly and can be stably embedded in the limiting hole 122 for positioning. At the same time, the spherical structure can reduce friction with the limiting hole 122 and improve service life.

[0035] In some embodiments, to achieve the functions of fixing and preventing the device from falling, a fastening member 114 and a flexible suspension member are provided. Specifically, the fastening member 114 passes through the fixing hole 113 of the base 11 and surrounds the valve body 21. By tightening the fastening member 114, the base 11 is fastened to the outer wall of the valve body 21. The fastening member 114 can be a fastening strap, a clamp, or a flexible binding member to adapt to valve bodies 21 of different diameters. After tightening, it is not easy to loosen, ensuring the overall assembly stability of the device. When the fastening member 114 is a fastening strap, buckles or locks can be provided at both ends of the fastening strap for easy disassembly and maintenance. Preferably, the fastening strap is a stainless steel binding strap, which has both rigidity and flexibility, and is used to adapt to the shape of the valve body 21 and achieve fastening. Additionally, one end of the flexible suspension component is connected to the suspension hole 123 of the limiting component 12, and the other end is connected to the pipe 24 or valve body 21 of the ball valve to form an auxiliary suspension structure. The flexible suspension component can be made of chain, wire rope, nylon rope or flexible strap, and its length is adapted to the installation distance between the device and the valve body 21. When the fastening component 114 is accidentally loosened, the flexible suspension component can suspend the device on the valve body 21 to prevent the device from falling and being damaged or lost.

[0036] Example 1 like Figure 1 and Figure 2 As shown, a handle valve anti-accidental contact device, with the thickness direction of the base 11 as the vertical direction, includes: 1. Base 11: The base 11 has one horizontal through hole and two vertical through holes; the two ends of the horizontal through hole are connected to the two vertical through holes respectively. The vertical through holes are holes that extend in the vertical direction (thickness direction of the base 11), and the two vertical through holes are arranged symmetrically; the horizontal through holes are through holes that extend in a direction perpendicular to the vertical direction, and the two ends are connected to the two vertical through holes respectively, forming an installation channel for the telescopic component 13 to be installed.

[0037] The base 11 includes a body 111 and a closing member 112. The body 111 has two recesses, and the closing member 112 is bolted to the opening of the recess, together with the recesses to form a vertical through hole. The base 11 has two fixing holes 113, which are symmetrically arranged on both sides of the base 11.

[0038] 2. Limiting component 12: It is U-shaped and slides with the base 11. It has two extensions 121. The two extensions 121 are respectively inserted into the corresponding vertical through holes and extend downward in the vertical direction. The extension direction of the extensions 121 is parallel to the length direction of the handle 22 of the handle valve 200. The two extensions 121 are located on opposite sides of the handle 22. Each extension 121 is provided with a limiting hole 122.

[0039] The limiting hole 122 is a through hole, opened horizontally, and arranged coaxially with the horizontal through hole of the base 11. The radial dimension of the end of the extension 121 is larger than the radial dimension of the vertical through hole, forming a stepped structure. There are two limiting holes 122 on each extension 121; the extension length of the limiting component 12 corresponding to the two limiting holes 122 relative to the base 11 satisfies the following condition: the end of the extension 121 is located above and below the upper end face of the fixing nut 23 of the handle valve 200 in the vertical direction. The upper end of the limiting component 12 is provided with a suspension hole 123, which is a through hole and connected to the pipe 24 where the handle valve 200 is located through a flexible suspension member.

[0040] 3. Telescopic component 13: The telescopic component 13 is disposed in the horizontal through hole of the base 11 and cooperates with the limiting hole 122 to limit the vertical movement of the limiting component 12 relative to the base 11. The telescopic component 13 includes an elastic element 131 and limiting elements 132 respectively connected to both ends of the elastic element 131; the elastic element 131 is a spring, and the limiting element 132 is a limiting bead, the diameter of which is smaller than the inner diameter of the horizontal through hole and larger than the diameter of the limiting hole 122.

[0041] 4. A fastening component 114 and a flexible suspension component (not shown) are provided as accessories: The fastening member 114 passes through the fixing hole 113 of the base 11 and surrounds the valve body 21. By tightening the fastening member 114, the base 11 is fastened to the outer wall of the valve body 21. The fastening member 114 is a stainless steel binding strap. One end of the flexible suspension member is connected to the suspension hole 123 of the limiting component 12, and the other end is connected to the pipe 24 of the ball valve. The flexible suspension member is a stainless steel chain.

[0042] Working principle (taking Example 1 as an example): 1. Assembly Process: First, separate the sealing component 112 from the body 111 of the base 11. Insert the telescopic component 13 into the horizontal through hole of the base 11, so that the two ends of the elastic element 131 abut against the limiting component 132. Align the two extensions 121 of the limiting component 12 with the two recesses of the body 111 respectively. Then, install the sealing component 112 to form a vertical through hole, so that the extensions 121 extend downward in the vertical direction. When the limiting component 132 is aligned with the limiting hole 122 on the upper part of the extension 121, the limiting component 132 is embedded in the limiting hole 122 under the elastic force of the elastic element 131, thus completing the positioning of the limiting component 12. The tightening component 114 passes through the fixing hole 113 of the base 11 and tightens around the valve body 21 to fix the device to the valve body 21. Finally, connect the flexible suspension component to the suspension hole 123 of the limiting component 12 and the pipe 24 to complete the assembly process. Figure 3 The overall assembly shown is without a flexible suspension component. In this case, two extensions 121 are located on opposite sides of the handle 22. The ends of the extensions 121 are located below the upper surface of the fixing nut 23 in the vertical direction, which is adapted to the rotation stroke of the handle 22.

[0043] 2. Limiting Function: When the handle 22 rotates around the valve stem of the ball valve, since the extension 121 is located on opposite sides of the handle 22, and the extension direction of the extension 121 is parallel to the length direction of the handle 22, when the handle 22 rotates, the end or side of the handle 22 will abut against the extension 121, preventing further rotation. This achieves the limit of the handle 22's stroke, avoiding changes in the ball valve's opening and closing state caused by over-stroke rotation. When it is necessary to restore the normal axial rotation of the handle 22, the limiting component 12 is pulled vertically to achieve the limiting function. The extension 121 of component 12 presses the limiting member 132 into the horizontal through hole, compresses the elastic member 131, and causes the limiting member 132 to disengage from the limiting hole 122. The limiting component 12 is pulled to slide upward in the vertical direction. The extension length of the extension 121 is adjusted so that the end of the extension 121 is above the upper end face of the fixing nut 23 of the handle valve 200 in the vertical direction. After the adjustment is completed, the elastic member 131 drives the limiting member 132 to insert into the limiting hole 122 at the lower part of the extension 121, thus completing the adjustment of the limiting stroke.

[0044] 3. Anti-detachment and anti-fall function: The radial dimension of the end of the extension 121 is greater than the radial dimension of the vertical through hole, which can prevent the limiting component 12 from detaching upward relative to the base 11; the fastening component 114 ensures that the device is stably fixed to the valve body 21 and avoids the device from loosening as a whole; when the fastening component 114 is accidentally loosened, the flexible suspension component can suspend the device on the valve body 21 to prevent the device from falling and improve the safety of use.

[0045] In the above embodiments, the adjustable positioning of the limiting component is achieved by the cooperation between the telescopic component and the limiting hole. The cooperation between the extension and the handle is precise, the limiting stability is high, and the anti-detachment structure of the extension can prevent the component from falling off. The base adopts a split structure, which facilitates through hole processing and component assembly. The pressable design of the telescopic component facilitates the adjustment of the limiting stroke. The fastening component and the flexible suspension component are easy to disassemble and assemble, reducing maintenance costs.

[0046] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A device for preventing accidental contact with a handle valve, wherein the thickness direction of the base is taken as the vertical direction, characterized in that, include: The base is fixed to the valve body of the handle valve and has one horizontal through hole and two vertical through holes; the two ends of the horizontal through hole are respectively connected to the two vertical through holes. The limiting component, which slides with the base, has two extensions, each extending vertically downwards through a corresponding vertical through hole and protruding outwards; the extending direction of the extensions is parallel to the length direction of the handle of the handle valve; the two extensions are located on opposite sides of the handle; each extension has a limiting hole. A telescopic component is disposed within a horizontal through hole in the base; the telescopic component cooperates with the limiting hole to restrict the limiting component from moving vertically relative to the base.

2. The anti-accidental contact device for the handle valve according to claim 1, characterized in that: The base includes a body and a closing member; the body has two recesses; the closing member is connected to the opening of the recess and together with the recesses forms the vertical through hole.

3. The anti-accidental contact device for the handle valve according to claim 1, characterized in that: The base has a fixing hole, and the base is fixedly installed on the valve body by a fastening member passing through the fixing hole.

4. The anti-accidental contact device for the handle valve according to claim 2, characterized in that: The radial dimension of the end of the extension is greater than the radial dimension of the vertical through hole, so as to restrict the limiting component from disengaging from the base in the vertical direction.

5. The anti-accidental contact device for the handle valve according to claim 1, characterized in that: The end of the extension is located below the upper surface of the fixing nut of the handle valve in the vertical direction.

6. The anti-accidental contact device for the handle valve according to claim 5, characterized in that: The end of the extension is located below the lower end face of the fixing nut in the vertical direction.

7. The anti-accidental contact device for the handle valve according to claim 1, characterized in that: The limiting holes are a plurality of holes spaced apart along the extension direction of the extension portion.

8. The anti-accidental contact device for the handle valve according to claim 1, characterized in that: The telescopic assembly includes an elastic element and limiting elements connected to both ends of the elastic element; the elastic element is used to drive the limiting elements to engage with the limiting holes of the extension.

9. The anti-accidental contact device for the handle valve according to claim 8, characterized in that: The elastic element is a spring, and the limiting element is a limiting bead.

10. The anti-accidental contact device for the handle valve according to claim 1, characterized in that: The upper end of the limiting component is provided with a suspension hole, which is connected to the pipe where the handle valve is located or the valve body through a flexible suspension component.

Images