A valve aid

Abstract

The application discloses a valve auxiliary tool and relates to the field of nuclear power plant operation. The scheme comprises a connecting assembly, a transmission assembly and a counting assembly. One end of the connecting assembly is used for being mounted on an operating handle of a valve. The transmission assembly or the counting assembly is arranged on the connecting assembly, and the transmission assembly drives the operating handle to rotate after accepting external rotating force. The counting assembly is in transmission connection with the transmission assembly and counts the rotating number of the operating handle. The valve auxiliary tool provided by the application can indicate the valve opening number when opening the existing valve, and the convenience of valve opening is improved.

Description

Technical Field

[0001] This application relates to the field of nuclear power plant operation, and in particular to a valve auxiliary tool. Background Technology

[0002] There are tens of thousands of manual valves in various systems of nuclear power plants that require manual operation. However, many valves have problems such as requiring many turns to open and close, taking a long time, poor force distribution, and difficulty in opening and closing, and there is no valve opening indication, which causes great inconvenience to on-site work.

[0003] For example, because current valves require a large number of rotations during opening, the exact number of rotations cannot be determined directly during the opening process. Repeated adjustments are needed to achieve the correct number of rotations, making the opening operation inconvenient and affecting normal unit control. Therefore, how to improve the ease of opening existing valves by indicating the number of rotations is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This application proposes a valve auxiliary tool that can indicate the number of valve opening turns when opening an existing valve, thereby improving the ease of valve opening.

[0005] To achieve the above objectives, this application discloses the following technical solutions:

[0006] A valve auxiliary tool is characterized in that it includes a connecting component, a transmission component, and a counting component; one end of the connecting component is used to be installed on the valve's operating handle; the transmission component or the counting component is disposed on the connecting component, and the transmission component drives the operating handle to rotate after receiving a rotational external force; the counting component is connected to the transmission component and counts the number of rotations of the operating handle.

[0007] In some embodiments, the connecting component is detachably mounted on the operating handle.

[0008] In some embodiments, the connecting assembly includes a first clamping member, a second clamping member, a first connecting member, and a second connecting member;

[0009] The first end of the first clamping member and the first end of the second clamping member are movably connected by the first connector, so that the second end of the first clamping member and the second end of the second clamping member form an opening that fits onto the operating handle.

[0010] The second end of the first clamping member and the second end of the second clamping member are detachably connected by a second connector to open or close the opening.

[0011] In some embodiments, the first end of the first clamping member is provided with a first connecting port, and the first end of the second clamping member is provided with a second connecting port that mates with the first connecting port; the first connecting member passes through the first connecting port and the second connecting port from a first direction, so that the first clamping member and the second clamping member can be movably connected with the first connecting member as the axis.

[0012] In some embodiments, at least one of the first clamping member and the second clamping member has a recessed structure in the middle, and the direction of the recess is relatively away from the other.

[0013] In some embodiments, the first clamping member includes a first anti-slip structure, and the second clamping member includes a second anti-slip structure; the first anti-slip structure and the second anti-slip structure are arranged opposite to each other at the part that contacts the operating handle.

[0014] In some embodiments, the counting component is a mechanical counting structure;

[0015] The counting assembly includes a housing, a transmission mechanism, and a counting wheel. The counting wheel and the transmission mechanism are rotatably disposed inside the housing. The power output end of the transmission mechanism is connected to the counting wheel, and the power input end of the transmission mechanism is connected to the transmission assembly to drive the counting wheel to rotate by a preset angle.

[0016] The counting wheel consists of four wheels: one for the minutes digit, one for the units digit, one for the tens digit, and one for the hundreds digit.

[0017] In some embodiments, the first end of the transmission component is connected to the connecting component, and the second end of the transmission component is connected to the counting component; or

[0018] The first end of the counting component is connected to the connecting component, and the second end of the counting component is connected to the transmission component.

[0019] In some embodiments, where the first end of the transmission assembly is connected to the connecting assembly and the second end of the transmission assembly is connected to the counting assembly, the transmission assembly includes a grip and a transmission part. The grip is a hollow structure, sleeved on the outer periphery of the transmission part, and can rotate axially relative to the transmission part.

[0020] One end of the grip is fixedly connected to the outer shell;

[0021] The first end of the transmission part is fixedly connected to the connecting assembly, and the second end of the transmission part is connected to the transmission mechanism.

[0022] In some embodiments, where the first end of the counting component is connected to the connecting component and the second end of the counting component is connected to the transmission component, the transmission component includes a grip and a transmission part. The grip is a hollow structure, sleeved on the outer periphery of the transmission part, and can rotate axially relative to the transmission part. The first end of the housing is fixedly connected to the connecting component, the second end of the housing does not contact the grip, the first end of the transmission mechanism is connected to the housing, and the second end of the transmission mechanism is connected to the transmission part.

[0023] As can be seen from the above technical solution, when various manual valves in a nuclear power plant need to be opened, the valve auxiliary tool provided in this solution can be used. The connecting component of the valve auxiliary tool is installed on the valve's operating handle, so that the external rotational force acts on the transmission component, causing the transmission component to drive the operating handle to rotate. At the same time, the counting component counts the number of rotations of the operating handle. Because the valve auxiliary tool of this application can be used, the number of valve opening turns can be counted very intuitively. Therefore, the appropriate number of turns can be achieved without repeated adjustments, simplifying the opening operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings, all of which fall within the scope of protection of this utility model. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structure or operation.

[0025] Figure 1 A perspective view of a valve auxiliary tool and a valve operating handle provided in an embodiment of this application;

[0026] Figure 2 A perspective view of a valve auxiliary tool provided in an embodiment of this application;

[0027] Figure 3 A front view of a valve auxiliary tool provided in an embodiment of this application;

[0028] Figure 4 A top view of a valve auxiliary tool provided in an embodiment of this application;

[0029] Figure 5 A side view of a valve auxiliary tool provided in an embodiment of this application;

[0030] Among them, 10 - valve auxiliary tools;

[0031] 100 - Connecting component; 200 - Transmission component; 300 - Counting component; 400 - Operating handle;

[0032] 101-First clamping member; 102-Second clamping member; 103a-First connecting member; 103b-Second connecting member;

[0033] 201 - Hand grip; 202 - Transmission part; Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0035] To address the issue of the inability to determine the number of opening turns during the operation of existing manual valves in nuclear power plants, this application, in conjunction with the accompanying drawings, details the structure of valve auxiliary tools:

[0036] See Figure 1 To achieve the above objectives, this application discloses the following technical solutions:

[0037] This application provides a valve auxiliary tool 10, including a connecting component 100, a transmission component 200, and a counting component 300; one end of the connecting component 100 is used to be mounted on the valve operating handle 400; the transmission component 200 or the counting component 300 is disposed on the connecting component 100, and the transmission component 200 drives the operating handle 400 to rotate after receiving a rotational external force; the counting component 300 is connected to the transmission component 200 and counts the number of rotations of the operating handle 400.

[0038] It should be noted that the valve auxiliary tool 10 disclosed in this application can assist in opening and closing the valve. When assisting in opening the valve, it records the valve's opening angle; when assisting in closing the valve, it records the valve's closing angle. This application will now describe the assistance in opening the valve in detail.

[0039] When various manual valves in a nuclear power plant need to be opened, the valve auxiliary tool provided in this solution can be used. The connecting component of this valve auxiliary tool is installed on the valve's operating handle, allowing external rotational force to act on the transmission component, which in turn drives the operating handle to rotate. Simultaneously, the counting component counts the number of rotations of the operating handle. Because the valve auxiliary tool of this application allows for a very intuitive counting of the valve's opening rotations, the appropriate number of rotations can be achieved without repeated adjustments, simplifying the opening operation.

[0040] The function of the connecting component 100 is to connect the valve auxiliary tool to the operating handle 400. This connection can be divided into a detachable connection and a non-detachable connection.

[0041] Taking a detachable connection as an example, for easy disassembly and installation, the connecting assembly 100 is provided with a first clamping member 101, a second clamping member 102, a first connecting member 103a, and a second connecting member 103b. The first end of the first clamping member 101 and the first end of the second clamping member 102 are movably connected via the first connecting member 103a, so that the second ends of the first clamping member 101 and the second ends of the second clamping member 102 form an opening that fits onto the operating handle 400. The second ends of the first clamping member 101 and the second ends of the second clamping member 102 are connected via the second connecting member 103b to close the opening. The second connecting member 103b is then removed, and the second ends of the first clamping member 101 and the second ends of the second clamping member 102 are separated to open the opening.

[0042] In some embodiments, the first clamping member 101 has a first connecting port at its first end, and the second clamping member 102 has a second connecting port at its first end that mates with the first connecting port; the first connecting member 103a extends transversely through the first and second connecting ports in a first direction, so that the first clamping member 101 and the second clamping member 102 can be movably connected about the first connecting member 103a as an axis. Preferably, the first connecting member 103a can be a reamed bolt.

[0043] It is important to note that the number of first and second connecting ports can be one each, or more than one. When there is more than one first or second connecting port, they must interlock when connected. For example, when there are two first connecting ports and one second connecting port, the two first connecting ports are located on either side of the second connecting port; when there are two first connecting ports and three second connecting ports, the two first connecting ports and the three second connecting ports interlock. For specific connection details, please refer to [reference needed]. Figure 4 .

[0044] In some embodiments, the second end of the first clamping member 101 is provided with a first opening, and the second end of the second clamping member 102 is provided with a second opening at a position corresponding to the first opening. The second connecting member 103b passes through the first opening and the second opening to fix the first clamping member 101 and the second clamping member 102. Preferably, the second connecting member 103b can be a bolt with a wing nut, as detailed in [reference needed]. Figure 2 The advantage of this connection method is that no additional tools are required; the connection of the connecting component 100 to the operating handle 400 can be achieved by manually tightening the wing nut, which is convenient and quick.

[0045] In some embodiments, the second connector 103b can be used in the form of a lever lock to achieve quick fixation and disassembly of the connecting component 100. Its advantage is that it can be disassembled and fixed in seconds, which will not be elaborated on here.

[0046] In some embodiments, at least one of the first clamping member 101 and the second clamping member 102 has a recessed structure in the middle, and the direction of the recess is relatively away from the other. That is, there are three cases: the first clamping member 101 is recessed in the middle and the second clamping member 102 is horizontal; the first clamping member 101 is horizontal and the second clamping member 102 is recessed in the middle; and both the first clamping member 101 and the second clamping member 102 are recessed in the middle. See also Figure 1 Taking a case where both clamping members 101 and 102 are recessed in the middle, the recesses of the first clamping member 101 and the second clamping member 102 are oriented relatively away from each other, forming an opening that can accommodate the operating handle 400. Since most existing valve operating handles 400 in nuclear power plants are circular handwheels, the recessed portion in this embodiment can increase the contact area between the first clamping member 101 and the second clamping member 102 and the operating handle 400, reduce the pressure of the connecting assembly 100 on the operating handle 400, thereby reducing damage to the paint surface of the operating handle 400 during operation and reducing the risk of rust on the operating handle 400.

[0047] In some embodiments, the first clamping member 101 includes a first anti-slip structure, and the second clamping member 102 includes a second anti-slip structure; the first and second anti-slip structures are arranged opposite each other at the parts that contact the operating handle 400. The first and second anti-slip structures can increase friction by providing textures on the first clamping member 101 and the second clamping member 102, or they can increase friction and reduce damage to the paint surface of the operating handle 400 by fixing anti-slip pads on the first clamping member 101 and the second clamping member 102.

[0048] The above describes an embodiment of the detachable connection of the connecting component 100. The following describes an embodiment of the non-detachable connection.

[0049] To facilitate quick and easy operation of existing valves, the existing valves can be upgraded by permanently attaching this valve auxiliary tool to the existing valve operating handle without disassembly or installation. In some embodiments, the connecting component 100 is connected to the operating handle 400 by clamping and welding, or it can be connected by direct welding to the operating handle 400.

[0050] Taking a clamping and welding configuration as an example, the connecting assembly 100 includes a first clamping member 101 and a second clamping member 102. After the two clamping members clamp the operating handle 400, welding is performed at the contact points between the first end of the first clamping member 101 and the first end of the second clamping member 102, and welding is also performed at the contact points between the second end of the first clamping member 101 and the second end of the second clamping member 102. The advantage of this connection configuration is that it does not damage the original structure of the operating handle 400.

[0051] Taking direct welding as an example, direct welding is performed at the contact points between the first clamping member 101 and the operating handle 400, and at the contact points between the second clamping member 102 and the operating handle 400. In some embodiments, the connecting assembly 100 includes only one connecting rod (not shown), which is directly welded to the contact point with the operating handle 400. This connecting rod is located away from the contact point with the operating handle 400 and is connected to the transmission assembly 200 or the counting assembly 300. The advantage of this connection method is that the connection is stable.

[0052] The structure of the connecting component 100 has been described above. Next, the structure of the counting component 300 will be described in detail.

[0053] The counting component 300 can record and display the number of valve opening turns to the operator. The counting component 300 can adopt a mechanical counting structure, a magnetic induction counting structure, an electronic counting structure, etc. In this application example, the mechanical counting structure is mainly described in detail.

[0054] The counting assembly 300 includes a housing, a transmission mechanism, and a counting wheel. The counting wheel and the transmission mechanism are rotatably disposed inside the housing. The power output end of the transmission mechanism is connected to the counting wheel, and the power input end of the transmission mechanism is connected to the transmission assembly 200 to drive the counting wheel to rotate by a preset angle.

[0055] The number of counting wheels is one or more. Taking the example of four counting wheels in this application, one counting wheel displays the number of revolutions for the minute digit, one counting wheel displays the number of revolutions for the unit digit, one counting wheel displays the number of revolutions for the tens digit, and one counting wheel displays the number of revolutions for the hundreds digit. Each counting wheel is marked with Arabic numerals from 0 to 9, and a display port is provided on the outer casing to expose the numbers on the counting wheels so that the numbers on the counting wheels can be observed through the display port. In some embodiments, a transparent protective shell is installed on the display port of the outer casing to prevent dust and water from entering the counting wheels.

[0056] When the power input end of the transmission mechanism receives the mechanical force provided by the transmission component 200, the transmission mechanism drives the minute counting wheel to rotate. When the minute counting wheel rotates 36°, the number increases from 0 to 1. When the minute counting wheel rotates 72°, the number increases from 1 to 2, and so on. When the minute counting wheel rotates 360°, the number on the minute counting wheel jumps back from 9 to 0, and the number on the units counting wheel increases from 0 to 1. This means that the valve auxiliary tool has driven the operating handle 400 to rotate one revolution. This process repeats. When the valve auxiliary tool drives the operating handle 400 to rotate 10 revolutions, the number on the units counting wheel jumps back from 9 to 0, and the number on the tens counting wheel increases from 0 to 1.

[0057] In some embodiments, the counting component 300 includes a reset button. When the reset button is pressed, the numbers on all the counting wheels are reset to 0, making it convenient to start counting again.

[0058] The structure of the counting component 300 has been described above. The specific structure of the transmission component 200 will be introduced below.

[0059] The transmission assembly 200 is the part that applies pressure to this valve as an auxiliary tool from the outside. (Reference) Figure 3 In this application example, the transmission component 200 includes a grip portion 201 and a transmission portion 202. The grip portion 201 is a hollow structure, and the grip portion 201 is sleeved on the outer periphery of the transmission portion 202 and can rotate axially relative to the transmission portion 202.

[0060] In this example, the first end of the transmission component 200 is connected to the connecting component 100, and the second end of the transmission component 200 is connected to the counting component 300. Specifically, the first end of the grip 201 is not in contact with or is in sliding contact with the connecting component 100, and the second end of the grip 201 is fixedly connected to the housing, optionally by snap-fit ​​or welding; the first end of the transmission part 202 is fixedly connected to the connecting component 100, optionally by snap-fit ​​or welding, and the second end of the transmission part 202 is connected to the transmission mechanism. When an external force is applied to the grip 201, the grip 201 drives the housing, the housing drives the transmission mechanism, the transmission mechanism drives the transmission part 202, and the transmission part 202 drives the connecting component 100, thereby causing the operating handle 400 to rotate and open the valve.

[0061] In some embodiments, the first end of the counting component 300 is connected to the connecting component 100, and the second end of the counting component 300 is connected to the transmission component 200. Specifically, the first end of the housing is fixedly connected to the connecting component 100, the second end of the housing does not contact or slides in contact with the grip 201, the first end of the transmission mechanism is connected to the housing, and the second end of the transmission mechanism is drivenly connected to the transmission part 202. When an external force is applied to the grip 201, the grip 201 drives the transmission part 202 to move axially, the transmission part 202 drives the transmission mechanism to rotate, and the transmission mechanism drives the counting wheel to rotate while applying a horizontal thrust to the housing, causing the connecting component 100 to move, thereby causing the operating handle 400 to rotate and open the valve.

[0062] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0063] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0064] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0065] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A valve auxiliary tool, characterized in that, It includes a connecting component (100), a transmission component (200), and a counting component (300); One end of the connecting assembly (100) is used to be mounted on the operating handle (400) of the valve; The transmission component (200) or the counting component (300) is disposed on the connecting component (100), and the transmission component (200) drives the operating handle (400) to rotate after receiving a rotational external force; The counting component (300) is connected to the transmission component (200) and counts the number of rotations of the operating handle (400).

2. The valve auxiliary tool as described in claim 1, characterized in that, The connecting component (100) is detachably mounted on the operating handle (400).

3. The valve auxiliary tool as described in claim 2, characterized in that, The connecting assembly (100) includes a first clamping member (101), a second clamping member (102), a first connector (103a), and a second connector (103b); The first end of the first clamping member (101) and the first end of the second clamping member (102) are movably connected by the first connector (103a) so that the second end of the first clamping member (101) and the second end of the second clamping member (102) form an opening that is fitted onto the operating handle (400); The second end of the first clamping member (101) and the second end of the second clamping member (102) are detachably connected via the second connector (103b) to open or close the opening.

4. The valve auxiliary tool as described in claim 3, characterized in that, The first clamping member (101) has a first connection port at its first end, and the second clamping member (102) has a second connection port at its first end that mates with the first connection port. The first connecting member (103a) passes through the first connection port and the second connection port from a first direction, so that the first clamping member (101) and the second clamping member (102) can be movably connected with the first connecting member (103a) as the axis.

5. The valve auxiliary tool as described in claim 3, characterized in that, At least one of the first clamping member (101) and the second clamping member (102) has a recessed structure in the middle, and the direction of the recess is relatively away from the other.

6. The valve auxiliary tool as described in claim 5, characterized in that, The first clamping member (101) includes a first anti-slip structure, and the second clamping member (102) includes a second anti-slip structure; the first anti-slip structure and the second anti-slip structure are arranged opposite to each other at the part that contacts the operating handle (400).

7. The valve auxiliary tool as described in claim 3, characterized in that, The counting component (300) is a mechanical counting structure; The counting component (300) includes a housing, a transmission mechanism, and a counting wheel. The counting wheel and the transmission mechanism are rotatably disposed inside the housing. The power output end of the transmission mechanism is connected to the counting wheel, and the power input end of the transmission mechanism is connected to the transmission component (200) to drive the counting wheel to rotate by a preset angle. The counting wheel includes four wheels: one wheel displays the number of revolutions for the minute digit, one wheel displays the number of revolutions for the units digit, one wheel displays the number of revolutions for the tens digit, and one wheel displays the number of revolutions for the hundreds digit.

8. The valve auxiliary tool as described in claim 7, characterized in that, The first end of the transmission assembly (200) is connected to the connecting assembly (100), and the second end of the transmission assembly (200) is connected to the counting assembly (300); or The first end of the counting component (300) is connected to the connecting component (100), and the second end of the counting component (300) is connected to the transmission component (200).

9. The valve auxiliary tool as described in claim 8, characterized in that, When the first end of the transmission assembly (200) is connected to the connecting assembly (100) and the second end of the transmission assembly (200) is connected to the counting assembly (300), the transmission assembly (200) includes a grip (201) and a transmission part (202). The grip (201) is a hollow structure, and the grip (201) is sleeved on the outer periphery of the transmission part (202) and can rotate axially relative to the transmission part (202). One end of the grip (201) is fixedly connected to the outer shell; The first end of the transmission part (202) is fixedly connected to the connecting assembly (100), and the second end of the transmission part (202) is connected to the transmission mechanism.

10. The valve auxiliary tool as described in claim 9, characterized in that, When the first end of the counting component (300) is connected to the connecting component (100) and the second end of the counting component (300) is connected to the transmission component (200), the transmission component (200) includes a grip (201) and a transmission part (202). The grip (201) is a hollow structure. The grip (201) is sleeved on the outer periphery of the transmission part (202) and can rotate axially relative to the transmission part (202). The first end of the outer shell is fixedly connected to the connecting component (100), and the second end of the outer shell does not contact the grip (201). The first end of the transmission mechanism is connected to the outer shell, and the second end of the transmission mechanism is connected to the transmission part (202) in a transmission manner.

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