Valve folding handle, valve and LNG receiving station

Abstract

The utility model relates to a valve folding handle, a valve and an LNG (liquefied natural gas) receiving station, the valve folding handle comprises a fixed rod and a folding rod, one end of the folding rod is rotatably connected with one end of the fixed rod and positioned, and the folding rod can rotate to be overlapped with or parallel to the fixed rod. The utility model has the beneficial effects that the structure is simple, the design is reasonable, the provided valve ensures the passage safety, is convenient for field maintenance, inspection and operators to smoothly pass through a walking board channel, and has no influence on the operation of the valve.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and in particular to a valve folding handle, a valve and an LNG receiving station. Background Art

[0002] In the process valve equipment of the LNG receiving station, some valves are designed to be located in the walkway. In order to meet the opening and closing torque required by the valve itself, a very long valve handle is required, and the valve handle is perpendicular to the direction of the walkway. During inspection or maintenance, the valve handle will hinder passage and pose a serious safety hazard. Utility Model Content

[0003] The utility model provides a valve folding handle, a valve and an LNG receiving station, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A valve folding handle comprises a fixed rod and a folding rod, one end of the folding rod is rotatably connected and positioned with one end of the fixed rod, and the folding rod can be rotated to overlap or be parallel to the fixed rod.

[0006] The beneficial effects of the utility model are as follows: during use, when the handle is in the operating state, the folding rod is manually rotated to be parallel to the fixed rod and positioned so that the valve can be operated by the handle; when the handle needs to be folded, the folding rod is manually rotated to be superimposed on the fixed rod, ensuring the safety of the inspection personnel, facilitating on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and having no impact on the valve operation.

[0007] The utility model has a simple structure and a reasonable design. The valve provided by the utility model ensures safe passage, facilitates on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and has no influence on the valve operation.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, one end of the fixing rod is fixedly connected to a fixing plate, and one end of the folding rod is rotationally connected and positioned with the fixing plate via an axle pin.

[0010] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and convenient assembly due to the use of a fixing plate to connect the fixing rod and the folding rod.

[0011] Furthermore, the interior of the fixing plate is hollow and both ends are open, one end of the fixing rod passes through one end of the fixing plate and extends into the fixing plate; the axle pin is located on the upper side of the other end of the fixing plate, and the folding rod can be rotated to the upper side of the fixing rod and fit with the fixing rod.

[0012] The beneficial effect of adopting the above further solution is that the structural design of the fixing plate is reasonable, which is convenient for assembling the fixing rod and the folding rod and saves space to a certain extent.

[0013] Furthermore, a positioning hole is provided on the end surface of one end of the folding rod, and a spring lock is fixedly installed on the fixing plate. The spring lock can be inserted into or withdrawn from the positioning hole when the folding rod is rotated to be parallel to the fixing rod to fix or release the folding rod.

[0014] The beneficial effects of adopting the above further solution are simple structure, reasonable design, the folding rod is fixed by a spring lock during the rotation process, and the operation is simple, saving time and effort.

[0015] Furthermore, the fixing rod and / or the folding rod are / is / are both in the form of long strip-shaped plates.

[0016] The beneficial effect of adopting the above further solution is that the shapes of the fixed rod and the folding rod are reasonably designed, which is convenient for folding and unfolding, easy to operate, and saves time and effort.

[0017] Furthermore, the other end of the fixing rod is bent to form a stepped structure.

[0018] The beneficial effect of adopting the above further solution is that the shape of the other end of the fixing rod is reasonably designed, which facilitates its assembly with the valve.

[0019] Furthermore, it also includes a connecting rod, which is arranged perpendicular to the fixed rod, one end of which is fixedly connected to the other end of the fixed rod, and the other end is used to connect to the valve stem of the valve.

[0020] The beneficial effects of adopting the above further solution are simple structure, reasonable design, using the connecting rod to connect the fixing rod and the valve body, and convenient assembly.

[0021] Furthermore, the other end of the fixing rod is sleeved on one end of the connecting rod, and a pad is fixedly sleeved on the connecting rod, and the pad supports the other end of the fixing rod; a nut is threadedly connected to one end of the connecting rod, and a gasket is also sleeved between the nut and the other end of the fixing rod, and the gasket and the pad are located on both sides of the other end of the fixing rod.

[0022] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, convenient disassembly and assembly of the fixing rod and the connecting rod, saving time and effort; in addition, the use of the pad and the gasket can extend the service life of the fixing rod and increase the stability of the fixing rod assembly.

[0023] The utility model also relates to a valve, comprising a valve body and the valve folding handle as described above, wherein the other end of the fixing rod is connected to the valve body.

[0024] The beneficial effect of adopting the above further scheme is that the utility model also provides a valve with a simple structure and reasonable design. The provided valve ensures safe passage, facilitates on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and has no effect on valve operation.

[0025] The utility model also relates to an LNG receiving station, comprising the valve as described above.

[0026] The beneficial effect of adopting the above further scheme is that the utility model also provides an LNG receiving station with a simple structure and reasonable design. The valves provided ensure safe passage, facilitate on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and have no impact on valve operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model during operation;

[0028] Figure 2 This is the main view of the utility model when in operation;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model when folded;

[0030] Figure 4 It is the front view of the utility model when folded.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Fixed rod; 2. Folding rod; 3. Fixed plate; 4. Spring lock; 5. Connecting rod; 6. Backing plate; 7. Nut; 8. Gasket; 9. Valve body; 10. Axle pin. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] Example 1

[0038] like Figures 1 to 4 As shown, this embodiment provides a valve folding handle, including a fixed rod 1 and a folding rod 2, one end of the folding rod 2 is rotatably connected and positioned with one end of the fixed rod 1, and can be rotated to overlap or be parallel to the fixed rod 1.

[0039] During use, when the handle is in the operating state, the folding rod 2 is manually rotated to be parallel to the fixed rod 1 and positioned so that the valve can be operated by the handle; when the handle needs to be folded, the folding rod 2 is manually rotated to be superimposed on the fixed rod 1 to ensure the safety of the inspection personnel, facilitate on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and have no impact on the valve operation.

[0040] The above-mentioned LNG is the abbreviation of Liquefied Natural Gas, i.e. liquefied natural gas. LNG is the product of natural gas being purified and cooled and liquefied at ultra-low temperature (-162°C, 1 atmosphere). The volume of natural gas after liquefaction is greatly reduced, about 1 / 600 of the volume of natural gas at 0°C and 1 atmosphere, that is, 600 cubic meters of natural gas can be obtained after 1 cubic meter of LNG is gasified.

[0041] This embodiment has a simple structure and a reasonable design. The valve provided ensures safe passage, facilitates on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and has no impact on valve operation.

[0042] Example 2

[0043] On the basis of Example 1, in this embodiment, one end of the fixing rod 1 is fixedly connected to the fixing plate 3, and one end of the folding rod 2 is rotationally connected and positioned with the fixing plate 3 via an axle pin 10.

[0044] The solution has a simple structure and a reasonable design. The fixing plate 3 is used to connect the fixing rod 1 and the folding rod 2, and the assembly is convenient.

[0045] Alternatively, the folding rod 2 may also be directly rotatably connected to the fixed rod 1 , but in this solution, each component is exposed to the outside, affecting the appearance of the entire device.

[0046] Example 3

[0047] On the basis of Example 2, in this embodiment, the interior of the fixed plate 3 is hollow and both ends are open, one end of the fixed rod 1 passes through one end of the fixed plate 3 and extends into the fixed plate 3; the axle pin 10 is located on the upper side of the other end of the fixed plate 3, and the folding rod 2 can be rotated to the upper side of the fixed rod 1 and fit with the fixed rod 1.

[0048] The structural design of the fixing plate 3 is reasonable, which is convenient for assembling the fixing rod 1 and the folding rod 2 and saves space to a certain extent.

[0049] Example 4

[0050] On the basis of any one of Examples 2 to 3, in this embodiment, a positioning hole is provided on the end face of one end of the folding rod 2, and a spring lock 4 is fixedly installed on the fixing plate 3. The spring lock 4 can be inserted into or withdrawn from the positioning hole when the folding rod 2 is rotated to be parallel to the fixing rod 1, so as to fix or release the folding rod 2.

[0051] The solution has a simple structure and a reasonable design. The folding rod 2 is fixed by a spring lock 4 during the rotation process, which is easy to operate and saves time and effort.

[0052] It should be noted that the spring lock 4 adopts the existing technology, and its specific structure and principle are not described in detail here.

[0053] Alternatively, the folding rod 2 may be fixed in other ways, for example, a fixing block is fixedly connected to one end of the fixing rod 1, a screw is threadedly connected to the fixing block, and a screw hole is provided on one end surface of the folding rod 1. When the folding rod 2 is rotated to be parallel to the fixing rod 1, the screw can be screwed until one end of the screw is threadedly connected to the screw hole to fix the folding rod 2.

[0054] Example 5

[0055] On the basis of the above embodiments, in this embodiment, the fixing rod 1 and / or the folding rod 2 are / is / are respectively in the form of a long strip plate.

[0056] The shapes of the fixed rod 1 and the folding rod 2 are reasonably designed, and are convenient to fold and unfold, easy to operate, and save time and effort.

[0057] Preferably, in this embodiment, the fixing plate 3 is preferably a rectangular block structure, which is distributed parallel to the fixing rod 1 .

[0058] Example 6

[0059] On the basis of the above embodiments, in this embodiment, the other end of the fixing rod 1 is bent to form a stepped structure.

[0060] The shape of the other end of the fixing rod 1 is reasonably designed to facilitate its assembly with the valve.

[0061] Alternatively, the fixing rod 1 directly adopts a flat plate structure.

[0062] Example 7

[0063] On the basis of Example 6, this embodiment further includes a connecting rod 5, which is arranged perpendicular to the fixing rod 1, one end of which is fixedly connected to the other end of the fixing rod 1, and the other end is used to connect to the valve stem of the valve.

[0064] This solution has a simple structure and a reasonable design. The connection between the fixing rod 1 and the valve body is achieved by using the connecting rod 5, and the assembly is convenient.

[0065] Example 8

[0066] On the basis of Example 7, in this embodiment, the other end of the fixing rod 1 is sleeved on one end of the connecting rod 5, and a pad 6 is fixedly sleeved on the connecting rod 5, and the pad 6 supports the other end of the fixing rod 1; one end of the connecting rod 5 is threadedly connected with a nut 7, and a gasket 8 is also sleeved between the nut 7 and the other end of the fixing rod 1, and the gasket 8 and the pad 6 are located on both sides of the other end of the fixing rod 1.

[0067] This solution has a simple structure and a reasonable design. The fixing rod 1 and the connecting rod 5 are easy to disassemble and assemble, saving time and effort. In addition, the use of the pad 6 and the gasket 8 can extend the service life of the fixing rod 1 and increase the stability of the assembly of the fixing rod 1.

[0068] Preferably, in this embodiment, the pad 6 and the gasket 8 are preferably annular structures respectively, and the pad 6 is fixedly sleeved on the connecting rod 5, and the gasket 8 is movably sleeved on the connecting rod 5.

[0069] Example 9

[0070] On the basis of the above embodiments, this embodiment further provides a valve, including a valve body 9 and the valve folding handle as described above, wherein the other end of the fixing rod 1 is connected to the valve body 9 .

[0071] This embodiment also provides a valve with a simple structure and reasonable design. The provided valve ensures safe passage, facilitates on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and has no impact on valve operation.

[0072] It should be noted that the valve body 9 adopts the existing technology, and its specific structure and principle are not described in detail here.

[0073] Example 10

[0074] Based on Example 9, this example also provides an LNG receiving station, including the valve described above.

[0075] This embodiment also provides an LNG receiving station, which has a simple structure and reasonable design. The valves provided ensure safe passage, facilitate on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and have no impact on valve operation.

[0076] It should be noted that the above-mentioned LNG receiving station adopts existing technology, and its specific structure and principle will not be described in detail here.

[0077] The working principle of the utility model is as follows:

[0078] During use, when the handle is in the operating state, the folding rod 2 is manually rotated to be parallel to the fixed rod 1 and positioned using the spring lock 4 (the folding rod 2 is flipped downward 180° at this time) so as to operate the valve through the handle;

[0079] When the handle needs to be folded, the folding rod 2 is manually rotated until it is superimposed on the fixed rod 1 (the folding rod 2 is flipped upward 180° at this time). At this time, the folding rod 2 does not need to be positioned, ensuring the safety of the inspection personnel, facilitating on-site maintenance, inspection and operating personnel to pass through the walkway smoothly, and has no effect on the valve operation.

[0080] In order to meet the on-site inspection safety requirements and the torque requirements of valve opening and closing, the valve handle structure needs to be modified and the operating torque needs to be guaranteed to meet the torque requirements of valve opening and closing. The idea is to shorten the valve handle and extend it when opening and closing the valve. It must be stored at the valve handle on a daily basis and cannot be lost. There is no need to bring manual tools to the site to open and close the valve.

[0081] The utility model disconnects the valve handle that blocks the passage at an appropriate position under the premise of meeting the requirements of on-site safe operation. At the disconnection point, a grooved fixing plate with an axis ear is welded on the front section of the handle, a pin shaft sleeve is welded on the rear section, and a spring lock is installed under the front section. When the handle is in an operating state, the lock tongue automatically pops out under the action of the spring, and at this time, the rear section of the handle is constrained in the up, down, left and right directions; when the handle needs to be folded, it is only necessary to pull the pull rod at the rear of the spring lock to retract the lock tongue, and the rear section of the handle rotates 180 degrees with the pin shaft as the center and then folds on the upper part of the front section of the handle, thereby ensuring that it is convenient to operate and will not be lost, and meeting the valve switching torque requirements.

[0082] The utility model is suitable for situations where the valve handle of an on-site valve is too long, affecting the safety of on-site inspection and passage, and if the valve handle is shortened, the valve switching torque requirement cannot be met and the valve cannot be opened. Therefore, it is required to ensure on-site safety while being convenient, fast, safe and labor-saving to switch the valve. The valve handle structure is changed to meet the safety of passage and the switching torque requirement, and the operator does not need to carry extra tools, which increases the burden on personnel.

[0083] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0084] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve folding handle, characterized in that: It comprises a fixed rod (1) and a folding rod (2), one end of the folding rod (2) is rotatably connected and positioned with one end of the fixed rod (1), and can be rotated to overlap or be parallel with the fixed rod (1); one end of the fixed rod (1) is fixedly connected with a fixed plate (3), and one end of the folding rod (2) is rotatably connected and positioned with the fixed plate (3) via a shaft pin (10); A positioning hole is provided on the end surface of one end of the folding rod (2), and a spring lock (4) is fixedly mounted on the fixing plate (3). The spring lock (4) can be inserted into or withdrawn from the positioning hole when the folding rod (2) is rotated to be parallel to the fixing rod (1), so as to fix or release the folding rod (2).

2. The valve folding handle according to claim 1, characterized in that: The interior of the fixing plate (3) is hollow and both ends are open; one end of the fixing rod (1) passes through one end of the fixing plate (3) and extends into the fixing plate (3); the shaft pin (10) is located on the upper side of the other end of the fixing plate (3); the folding rod (2) can be rotated to the upper side of the fixing rod (1) and fit with the fixing rod (1).

3. The valve folding handle according to any one of claims 1-2, characterized in that: The fixed rod (1) and / or the folding rod (2) are each in the form of a long strip-shaped plate.

4. The valve folding handle according to any one of claims 1-2, characterized in that: The other end of the fixing rod (1) is bent to form a stepped structure.

5. The valve folding handle according to claim 4, characterized in that: It also comprises a connecting rod (5), which is arranged perpendicular to the fixing rod (1), one end of which is fixedly connected to the other end of the fixing rod (1), and the other end of which is used to connect to the valve stem of the valve.

6. The valve folding handle according to claim 5, characterized in that: The other end of the fixing rod (1) is sleeved on one end of the connecting rod (5), and a pad (6) is fixedly sleeved on the connecting rod (5), and the pad (6) supports the other end of the fixing rod (1); one end of the connecting rod (5) is threadedly connected with a nut (7), and a gasket (8) is sleeved between the nut (7) and the other end of the fixing rod (1), and the gasket (8) and the pad (6) are located on both sides of the other end of the fixing rod (1).

7. A valve, comprising a valve body (9), characterized in that: It also comprises a valve folding handle as claimed in any one of claims 1 to 6, wherein the other end of the fixing rod (1) is connected to the valve body (9).

8. An LNG receiving station, characterized in that: Comprising a valve as claimed in claim 7.

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