Valve locking device
By designing an adjustable valve locking device, the problem of tight pipeline arrangement and limited space is solved, achieving reliable valve locking, preventing the release of energy media, and ensuring production safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SHOUGANG CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-10
AI Technical Summary
In scenarios where pipelines are closely arranged and space is limited, the existing valve lock's limiting structure is difficult to connect with the valve body, resulting in the inability to effectively lock the valve and posing a risk of energy medium release.
A valve locking device is designed, including a limiting tube, a connector, a telescopic component, and a lock. The valve handle is inserted through the limiting tube, the connector is detachably connected to the pipeline, the threaded connection of the telescopic component allows for length and angle adjustment, and the lock locks the connector to achieve reliable valve locking.
Even in confined spaces, the valve can be effectively locked, increasing its applicability, preventing accidental valve opening, and ensuring production safety.
Smart Images
Figure CN224107757U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of valve locking, and particularly relates to a valve locking device. BACKGROUND
[0002] Valves are important process node control structures for controlling the conduction and isolation of gaseous, liquid and other energy media in industrial production processes. For example, hot rolling units and cold rolling units are provided with valves. During equipment maintenance or repair, unsafe human behaviors, such as incomplete contact confirmation, valve opening for energy saving, and lack of effective control means for process node energy media, are important reasons for frequent production safety accidents.
[0003] In related technologies, a lock and a card are generally used for management, a universal cable lock and a valve lock are combined for use, a valve handle is locked to prevent the risk of releasing energy medium energy caused by opening the valve by human factors during maintenance. The universal cable lock is used to bind the valve handle and the valve body by a cable, and then the cable is locked by a lock. The valve lock generally includes a limiting structure and a lock, the limiting structure is detachably connected to the valve body of the valve, and a limiting hole is arranged in the limiting structure, the handle is inserted into the limiting hole, and the limiting structure and the valve body are locked by the lock to prevent the limiting structure and the valve body from being disassembled and opened by human factors.
[0004] However, for complex pipelines, the pipelines are arranged very closely, and the space is very small, so the limiting structure and the valve body cannot be connected. SUMMARY
[0005] To solve the technical problem that the limiting structure of the valve lock and the valve body cannot be connected due to the close arrangement of the pipelines and the small space, the application provides a valve locking device.
[0006] The application provides a valve locking device for locking a valve on a pipeline, the valve is provided with a handle, and the locking device comprises:
[0007] a limiting tube provided with a lumen for inserting the handle;
[0008] a connecting piece for detachably connecting with the pipeline;
[0009] a telescopic piece comprising a first telescopic rod and a second telescopic rod, the first telescopic rod is hinged to the connecting piece and is provided with a threaded hole, the second telescopic rod is provided with an external thread, one end of the second telescopic rod is threadedly connected to the threaded hole, and the other end of the second telescopic rod is extended from the threaded rod and is hinged to the limiting tube;
[0010] a lock for locking the connecting piece.
[0011] In some embodiments, the threaded hole comprises a telescopic section and a threaded section arranged along the axial direction of the first telescopic rod in sequence, an inner wall of the threaded section is provided with an internal thread, one end of the second telescopic rod is matched with the internal thread and extends into the telescopic section.
[0012] In some embodiments, the diameter of the telescopic section is greater than the diameter of the threaded section.
[0013] In some embodiments, the telescopic part further comprises a locking part, the locking part is movably connected with the second telescopic rod to abut against the end of the first telescopic rod.
[0014] In some embodiments, the locking part is a nut, the nut is threadedly connected with the second telescopic rod.
[0015] In some embodiments, the connecting part comprises a hoop and a buckle connected to the hoop, the hoop is detachably connected with the pipeline and is hingedly connected with the first telescopic rod, and the lock is detachably connected with the buckle.
[0016] In some embodiments, the hoop comprises a first half ring and a second half ring, one end of each of the first half ring and the second half ring is hingedly connected with the first telescopic rod, the buckle comprises a clamping plate and a clamping ring, the clamping plate is connected to the other end of the first half ring, the clamping ring is connected to the other end of the second half ring, the clamping plate is provided with a clamping hole, and the middle part of the clamping ring is arranged in the clamping hole.
[0017] In some embodiments, the clamping plate and the first half ring are in an integral structure, and the clamping ring is connected with the second half ring through a connecting plate.
[0018] In some embodiments, the inner diameter of the limiting tube is 30-35 mm, and the wall thickness of the limiting tube is 5-10 mm.
[0019] In some embodiments, the tube body of the limiting tube is hingedly connected with the second telescopic rod.
[0020] According to the valve locking device provided in the embodiments of the present application, the locking device comprises a limiting tube, a connecting part, a telescopic part and a lock, the limiting tube is provided with a tube cavity for inserting a handle; the connecting part is used for detachably connecting with a pipeline; the telescopic part comprises a first telescopic rod and a second telescopic rod, the first telescopic rod is provided with a threaded hole, the second telescopic rod is provided with an external thread, one end of the second telescopic rod is threadedly connected in the threaded hole, the other end of the second telescopic rod extends out of the threaded rod and is hingedly connected with the limiting tube, and the first telescopic rod is hingedly connected with the connecting part; the lock is used for locking the connecting part.
[0021] The valve locking device realizes the hard connection of the pipeline and the valve by inserting the handle of the valve into the lumen of the limiting tube, connecting the connecting piece with the pipeline, and then locking the connecting piece with the lock, so as to lock the valve.
[0022] Since the first telescopic rod and the second telescopic rod in the telescopic piece are threadedly connected, the limiting tube and the connecting piece can be adjusted in the direction, and the axial length of the telescopic piece is adjustable, so even if the space of the pipeline near the valve is narrow, the pipeline far away can be selected to be connected with the connecting piece, and the application range is improved. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A top view of the valve locking device in one or more embodiments of the application is shown.
[0024] Figure 2 A front view of Figure 1 is shown.
[0025] Figure 3 A structure diagram showing the cooperation of the valve locking device of Figure 2 with the valve and the pipeline is shown.
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] 100-connecting piece, 110-buckle, 111-buckle plate, 112-buckle ring, 113-connection plate, 120-hoop, 121-first half ring, 122-second half ring; 200-telescopic piece, 210-first telescopic rod, 211-threaded hole, 220-second telescopic rod, 201-first hinged shaft, 201-second hinged shaft, 203-locking piece; 300-limiting tube, 301-lumen; 201-handle, 202-pipeline. DETAILED DESCRIPTION
[0028] In order for those skilled in the art to which the present application belongs to more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0029] The present application provides a valve locking device which can be detachably connected with the pipeline at any position and can still realize the locking of the valve in the scene where the pipelines are densely arranged and the space is small.
[0030] The present application will be described below in conjunction with the drawings and specific embodiments:
[0031] Please refer to Figure 1 andFigure 2 The valve locking device provided by the embodiment of the application comprises a connecting piece 100, an extension piece 200, a limiting tube 300, and a lock (not shown in the figure).
[0032] The connecting piece 100 can be detachably connected with the pipeline, so as to facilitate the disassembly and assembly of the locking device. The extension piece 200 comprises a first extension rod 210 and a second extension rod 220. The first extension rod 210 is provided with a threaded hole 211, and the second extension rod 220 is provided with an external thread. One end of the second extension rod 220 is threadedly connected in the threaded hole 211, and the other end of the second extension rod 220 extends out of the threaded rod and is hinged to the limiting tube 300. The first extension rod 210 is hinged to the connecting piece 100. The limiting tube 300 is provided with a lumen 301 for inserting a handle 201. The lock is used for locking the connecting piece 100.
[0033] The first extension rod 210 and the second extension rod 220 are threadedly connected, so that the length of the extension piece 200 can be adjusted to match different distances (the distance between the pipeline and the valve), and the extension piece 200 has a wide range of use. Meanwhile, the first extension rod 210 and the second extension rod 220 can be rotated relative to each other through the threaded connection, so that the orientation of the connecting piece 100 and the limiting tube 300 can be adjusted, and the extension piece 200 has a high degree of freedom and a wider range of use. In addition, the threaded connection can also be used to replace the connecting piece 100 and the first extension rod 210 according to the diameter of the pipeline, which is convenient and fast.
[0034] The limiting tube 300 is provided with the lumen 301 for inserting the handle 201 of the valve. The extension piece 200 is composed of the first extension rod 210 and the second extension rod 220 which are threadedly connected, so that the length of the extension piece 200 can be adjusted, and the position of the connecting piece 100 can be adjusted. Since the two ends of the extension piece 200 are hinged to the connecting piece 100 and the limiting tube 300 respectively, the connecting piece 100 and the limiting tube 300 can be rotated relative to the extension piece 200. The first extension rod 210 of the extension piece 200 is threadedly connected with the second extension rod, so that the first extension rod 210 and the second extension rod can be rotated relative to each other around the extension axis of the extension piece 200, and the limiting tube 300 and the connecting piece 100 can also be rotated relative to each other around the extension axis. In this way, the distance and the relative angle between the limiting tube 300 and the connecting piece 100 can be adjusted at will. In a complex pipeline, the connecting piece 100 can be connected to a pipeline at a position with a large space, so that the problem that the valve cannot be installed in a complex pipeline due to a small space at the position of the valve is solved.
[0035] The connecting piece 100 is used to connect with a pipeline, and the connecting piece 100 can include a clamp 120 and a buckle 110 connected with the clamp 120, the clamp 120 is detachably connected with the pipeline and is hinged with the first telescopic rod 210, and a lock is detachably connected with the buckle 110. The clamp 120 is a commonly used structure for connecting with a pipeline, and after the buckle 110 is connected with the locking piece 203, the clamp 120 cannot be opened, thereby eliminating the risk of releasing the energy of the energy medium due to the private opening of the valve. In other embodiments, the lock can also be directly locked on the opening of the clamp 120, and the risk of releasing the energy of the energy medium due to the private opening of the valve can also be eliminated.
[0036] In some embodiments, referring to Figure 2 , the clamp 120 includes a first half ring 121 and a second half ring 122, one end of the first half ring 121 and the second half ring 122 is hinged with the first telescopic rod 210, the buckle 110 includes a buckle plate 111 and a buckle ring 112, the buckle plate 111 is connected with the other end of the first half ring 121, the buckle ring 112 is connected with the other end of the second half ring 122, the buckle plate 111 is provided with a buckle hole, and the buckle ring 112 can be arranged in the buckle hole.
[0037] One end of the first half ring 121 and the second half ring 122 is hinged with the first telescopic rod 210 through the first hinge shaft 201, so that the first half ring 121 and the second half ring 122 can be opened and closed, and the pipeline can be detached from the clamp 120 or the clamp 120 can be clamped outside the pipeline when the first half ring 121 and the second half ring 122 are away from each other. The buckle plate 111 is connected with the first half ring 121, and the buckle ring 112 is connected with the second half ring 122, so that the buckle plate 111 and the buckle ring 112 are away from each other when the first half ring 121 and the second half ring 122 are away from each other. When the other ends of the first half ring 121 and the second half ring 122 are close to each other, the middle part of the buckle ring 112 is arranged in the buckle hole, and the end part is located outside the buckle hole, and the part of the buckle ring 112 located outside the buckle hole can be connected with the lock, so as to realize the locking of the clamp 120. In other embodiments, the clamp 120 is a ring member with an opening, the part of the ring member away from the opening is hinged with the first telescopic rod 210 through the first hinge shaft 201, the two end parts of the ring member located at the opening are respectively provided with lock holes, and the lock is connected with the two lock holes, so as to realize the locking of the clamp 120.
[0038] In some embodiments, referring to Figure 2 , the buckle plate 111 and the first half ring 121 are an integral structure, which is more convenient for processing. In some embodiments, the buckle ring 112 is connected with the second half ring 122 through the connecting plate 113, so as to improve the connection strength of the buckle ring 112 and the second half ring 122.
[0039] In some embodiments, a cushion layer is provided on the inner wall of the hoop 120 to reduce damage to the pipe.
[0040] The telescopic piece 200 is a structure for adjusting the distance between the limiting pipe 300 and the connecting piece 100. The threaded hole 211 includes telescopic segments and threaded segments arranged in sequence along the axial direction of the first telescopic rod 210. The inner wall of the threaded segment is provided with an internal thread. One end of the second telescopic rod 220 is matched with the internal thread and extends into the telescopic segment. The telescopic segment is provided as a through hole to reduce the processing difficulty of the threaded hole 211 and also to realize the threaded connection between the first telescopic rod 210 and the second telescopic rod 220. In other embodiments, the threaded hole 211 can also be provided with a thread along the axial direction of the first telescopic rod 210, which can also realize the threaded connection between the first telescopic rod 210 and the second telescopic rod 220.
[0041] In some embodiments, the diameter of the telescopic segment is greater than the diameter of the threaded segment, so that the diameter of the telescopic segment is greater than the outer diameter of the second telescopic rod 220. The second telescopic rod 220 can move in the telescopic segment without obstruction and more smoothly. In addition, the second telescopic rod 220 may slightly bend during use. The diameter of the telescopic segment is relatively large, so that the slightly bent second telescopic rod 220 can still extend into the telescopic segment and also has a straightening effect.
[0042] In some embodiments, referring to Figure 2 , the telescopic piece 200 further includes a locking piece 203. The locking piece 203 is movably connected with the second telescopic rod 220 to abut against the end of the first telescopic rod 210, thereby realizing the locking between the first telescopic rod 210 and the second telescopic rod 220.
[0043] In some embodiments, the locking piece 203 is a locking nut, which is threadedly connected with the second telescopic rod 220. In other embodiments, the locking piece 203 is a locking pin. The second telescopic rod 220 is provided with a plurality of locking holes spaced along the axial direction of the second telescopic rod 220. The locking pin extends into the locking hole, thereby realizing the locking between the first telescopic rod 210 and the second telescopic rod 220.
[0044] The limiting pipe 300 is a structure for limiting the swing of the valve handle 201. The inner diameter of the limiting pipe 300 can be 30-35 mm, such as 31 mm, 32 mm, 33 mm or 34 mm, etc. The wall thickness of the limiting pipe 300 can be 5-10 mm, such as 6 mm, 7 mm, 8 mm or 9 mm, etc., thereby improving the strength of the limiting pipe 300.
[0045] In some embodiments, the tube body of the limiting tube 300 can be hinged with the second telescopic rod 220 through the second hinge shaft 201, so that even if the length of the handle 201 of the valve exceeds the limiting tube 300, no interference will be caused. In other embodiments, the tube end of the limiting tube 300 is hinged with the second telescopic rod 220 through the second hinge shaft 201, and the limiting tube 300 can be set to be slightly longer to adapt to handles 201 of different lengths.
[0046] The lock includes a lock body and a U-shaped half-lock ring, and the U-shaped half-lock ring is connectable with the lock body and lockable, and can also be opened by a key. When the lock is connected with the connecting piece, the U-shaped half-lock ring is hooked with the clasp ring of the clasp, and then the U-shaped half-lock ring is locked into the lock body to lock.
[0047] The use process of the valve locking device provided in the application is described in detail below:
[0048] 1) Before the maintenance operation, the energy locking isolation point is determined according to the energy locking isolation guide book, the locking person is responsible for locking and confirming the energy locking isolation point, and the verification person is responsible for verifying the reliability of the energy locking.
[0049] When the valve locking device is used to lock the energy isolation point, first, the length of the telescopic part 200 is adjusted by adjusting the depth of the second telescopic rod 220 screwed into the threaded hole 211 of the first telescopic rod 210, and then the lock nut is tightened after the length is adjusted to be appropriate.
[0050] Then, the limiting tube 300 is sleeved on the handle of the hand valve, the first half ring 121 and the second half ring 122 of the clamp 120 are sleeved on the nearby pipeline, and then the clasp 110 is buckled, and the life lock or other lock is locked through the U-shaped clasp ring 112 of the clasp 110 (see Figure 3 ). At this time, the handle position of the hand valve is locked, preventing the accidental release of energy medium and ensuring the safety of subsequent maintenance operations.
[0051] 2) After the maintenance operation is completed and confirmed by the three parties, the personnel can remove the valve locking device after the personal life lock is released, and the valve can be restored to normal use.
[0052] It should be noted that when the pipeline position is selected, the first hinge shaft is preferably not perpendicular to the handle, and the second hinge shaft is preferably not perpendicular to the handle when the valve locking device is in the locked state, so as to improve the locking stability of the locking device to the handle.
[0053] The valve locking device provided in the application has at least the following advantages:
[0054] (1) The handle 201 (the wrench) of the valve is positioned by being sleeved and positioned by the limiting tube 300, which has almost no requirements for the shape of the wrench, and the sleeve is slightly larger than the wrench, which does not affect the locking function, can adapt to the hand-operated valve with various wrench styles, has universality and high reliability.
[0055] (2) The axial length of the telescopic part 200 can be adjusted according to the spacing requirement between the valve and the pipeline, and the application range is wide.
[0056] (3) The first telescopic rod 210 and the second telescopic rod 220 are threadedly connected, the first telescopic rod 210 and the second telescopic rod 220 can be screwed off at any time according to the actual situation on site, and the clamps 120 with different diameters can be replaced to adapt to the pipelines with different diameters; meanwhile, the orientations of the connecting part 100 and the limiting tube 300, i.e., the included angle of the first hinge shaft 201 and the second hinge shaft 201, can be adjusted, the first hinge shaft 201 and the second hinge shaft 201 can be perpendicular to each other, can be parallel to each other, can be an acute angle or an obtuse angle, have high degrees of freedom, and have a wider application range.
[0057] (4) The limiting tube 300 and the connecting part 100 can rotate within a certain angle relative to the telescopic part 200, can adapt to the relative positions of various valves and pipelines, and expand the application range of the device.
[0058] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "on the top" of the second feature, which includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "under", "below" and "under" the second feature, which includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0060] In the present application, unless specifically defined otherwise and limited, the terms "connected", "fixed", and the like should be construed as being broad, for example, "fixed" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements, or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0061] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically defined.
[0062] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A valve locking device for locking a valve on a pipe, said valve being provided with a handle, characterized in that The locking device comprises: a limiting tube provided with a lumen for inserting the handle; a connecting piece for detachably connecting with the pipeline; a telescopic piece comprising a first telescopic rod and a second telescopic rod, the first telescopic rod being hinged with the connecting piece and provided with a threaded hole, the second telescopic rod being provided with an external thread, one end of the second telescopic rod being threadedly connected in the threaded hole and the other end of the second telescopic rod extending out of the threaded hole and being hinged with the limiting tube; a lock for locking the connecting piece.
2. The valve locking device of claim 1, wherein The threaded hole comprises a telescopic section and a threaded section arranged in sequence along the axial direction of the first telescopic rod, the inner wall of the threaded section being provided with an internal thread, one end of the second telescopic rod being matched with the internal thread and extending into the telescopic section.
3. The valve locking device of claim 2, wherein, The diameter of the telescopic section is greater than the diameter of the threaded section.
4. Valve locking device according to any one of claims 1-3, characterized in that The telescopic piece further comprises a locking piece movably connected with the second telescopic rod to abut against the end of the first telescopic rod.
5. The valve locking device of claim 4, wherein, The locking piece is a nut, and the nut is threadedly connected with the second telescopic rod.
6. Valve locking device according to any of claims 1-3, characterized in that The connecting piece comprises a hoop and a buckle connected with the hoop, the hoop being detachably connected with the pipeline and being hinged with the first telescopic rod, and the lock being detachably connected with the buckle.
7. The valve locking device of claim 6, wherein The hoop comprises a first half ring and a second half ring, one end of the first half ring and one end of the second half ring being hinged with the first telescopic rod, the buckle comprising a clamping plate and a clamping ring, the clamping plate being connected with the other end of the first half ring, the clamping ring being connected with the other end of the second half ring, and the clamping plate being provided with a clamping hole, the clamping ring being arranged in the clamping hole.
8. The valve locking device of claim 7, wherein, The clamping plate and the first half ring are in an integral structure, and the clamping ring is connected with the second half ring through a connecting plate.
9. The valve lockout device of any one of claims 1-3, wherein, The inner diameter of the limiting tube is 30-35 mm, and the wall thickness of the limiting tube is 5-10 mm.
10. The valve lockout device of any one of claims 1-3, wherein, The tube body of the limiting tube is hinged with the second telescopic rod.