Crankshaft rotation locking mechanism
By using a crankshaft rotation locking mechanism, the rotation of the crankshaft drives the locking components to engage and lock, and combined with a limit component to limit the rotation angle, the problem of complex operation of existing oil-gas locking mechanisms is solved, achieving fast and safe locking and unlocking.
Patent Information
- Application Number
- CN202520332099.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing oil and gas locking mechanisms are complicated to operate in complex environments, making locking or unlocking inconvenient and affecting work efficiency and safety.
The crankshaft rotation locking mechanism is adopted. The rotation of the crankshaft drives the locking part to push out, realizing a simple and quick locking operation. The limit component restricts the rotation angle of the crankshaft to prevent unlocking and separation.
It enables fast and secure locking and unlocking operations in complex environments, reducing operational complexity and security risks.
Smart Images
Figure CN223782336U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil gas locking device technical field, specifically, a crankshaft rotation locking mechanism. BACKGROUND
[0002] Oil gas locking device is mainly used for fixing and locking the pipeline, riser, flange and other components in oil and gas production and transportation system, to prevent the components from loosening or leaking due to external force (such as wind load, wave, vibration, etc.). In the field of oil and gas and underwater wellhead environment, because the working environment is in low visibility and complex pipeline environment, it is necessary to ensure that the workers can realize reliable locking or quick unlocking of two devices that need to be locked by relatively simple and quick operation, reduce the working time in complex environment and reduce the working danger.
[0003] At present, the oil and gas locking mechanism mostly adopts ring screw, or top screw, snap ring mechanism, the operation is complex, the locking or unlocking is troublesome, and the operation is inconvenient in complex working environment. UTILITY MODEL CONTENT
[0004] The purpose of the present application is to provide a crankshaft rotation locking mechanism, aiming at solving the technical problem of quick locking and unlocking of oil and gas related devices in complex environment.
[0005] In order to solve the above technical problem, the scheme adopted by the present application is as follows:
[0006] A crankshaft rotation locking mechanism, comprising a shell, the shell is arranged on a connecting piece, a locking piece is arranged on the shell, the locking piece abuts against the crankshaft end of a crankshaft piece, and the locking end of the locking piece is clamped with the connecting end surface of the connected piece.
[0007] Preferably, the locking piece comprises a sliding column, the sliding column is slidably arranged on the shell, and the sliding direction is perpendicular to the connecting end surface of the connected piece.
[0008] Preferably, the crankshaft piece comprises a rotating shaft, a protrusion is arranged on the outer shaft surface of the rotating shaft, and the rotating shaft is rotatably arranged on the shell.
[0009] Preferably, a rotating hole is arranged on the sliding column, and the protrusion slidably abuts against one side of the inner hole wall of the rotating hole.
[0010] Preferably, a limiting assembly is arranged on the connecting piece, the locking piece is separated from the limiting end of the limiting assembly when the locking piece is not locked with the connected piece, and the crankshaft piece is clamped with the limiting end of the limiting assembly when the locking piece is locked with the connected piece.
[0011] Preferably, a sealing piece is sleeved on the sliding column, and the sealing piece comprises an O-shaped ring and a ring groove.
[0012] Preferably, the annular groove is arranged on the outer wall of the sliding column, is located between the outer wall of the sliding column and the inner wall of the corresponding through hole of the shell, and is sleeved with an O-shaped ring in the annular groove, and the O-shaped ring is in sliding contact with the inner wall of the through hole of the shell.
[0013] Preferably, the through hole on the sliding column is an elliptical hole, the short axis side of the elliptical hole is in abutment with the protrusion, and the long axis side of the elliptical hole is not in contact with the protrusion.
[0014] The short axis direction of the elliptical hole is consistent with the axial direction of the sliding column.
[0015] Preferably, one end of the sliding column is provided with a locking tooth, and the connecting end surface of the connected part is provided as a tooth surface.
[0016] Preferably, when the locking part locks the connected part, the locking tooth is engaged and clamped with the tooth surface.
[0017] Preferably, the crank part further comprises a limiting shaft, the limiting shaft is coaxially fixed at one end of the rotating shaft, and the shaft diameter of the limiting shaft is greater than the shaft diameter of the rotating shaft.
[0018] Preferably, the two ends of the limiting shaft are clamped in the shell, and the limiting shaft is rotatably connected with the shell.
[0019] Preferably, a handle is further fixedly connected to the rotating shaft, the handle has a U-shaped structure, and the two straight rod ends of the U-shaped structure are fixedly connected to the two ends of the rotating shaft.
[0020] Preferably, the limiting assembly comprises a limiting plate, and the limiting plate is rotatably connected to the handle, and the straight rod of the handle penetrates through the limiting plate.
[0021] Preferably, a limiting hole is arranged on the limiting plate, the limiting hole is in sliding sleeve connection with a limiting column, the limiting column is fixed to the connecting part, and the sliding direction of the limiting plate through the limiting hole is consistent with the axial direction of the sliding column.
[0022] Preferably, the diameter of the limiting column is smaller than the hole diameter of the limiting hole.
[0023] The technical scheme has at least the following advantages and beneficial effects:
[0024] In the utility model, the locking part is pushed out by the rotation of the crank of the crank part, the locking part is clamped to lock the connected part, and simple and fast locking operation is realized.
[0025] In the utility model, the limiting assembly is arranged, the limiting assembly is clamped with the crank of the crank part after the locking part is locked, the rotation angle of the crank is limited in a small angle range, the locking part and the connected part are prevented from being unlocked and separated due to free rotation of the crank, and a safety accident is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is a structure schematic view of the utility model.
[0027] Figure 2 It is a front view structure schematic view of the utility model.
[0028] Figure 3 It is a section view structure schematic view in the utility model
[0029] Figure 4 It is a structure schematic view of the locking piece in the utility model.
[0030] Figure 5 It is a structure schematic view of the crank piece in the utility model.
[0031] Figure 6 It is a section view structure schematic view of the crank piece in the utility model.
[0032] Figure 7 It is a position structure schematic view when the handle is converted from the non-locking state to the locking state in the utility model.
[0033] Figure 8 It is a structure schematic view when the locking piece and the connected piece are locked in the utility model.
[0034] In the drawing: 1 - shell, 2 - screw, 3 - locking piece, 301 - sliding column, 302 - locking tooth, 303 - rotating hole, 4 - crank piece, 401 - rotating shaft, 402 - limiting shaft, 403 - protrusion, 5 - handle, 6 - sealing piece, 601 - O ring, 602 - ring groove, 7 - connecting piece, 8 - connected piece, 801 - mounting plate, 802 - tooth surface, 9 - limiting structure, 901 - limiting plate, 902 - connecting plate, 903 - limiting column. DETAILED DESCRIPTION
[0035] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.
[0036] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. The terms "center", "upper", "lower", "inner", "outer", and the like, which indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed, are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. It should also be noted that unless otherwise specified and limited, the terms "provided", "installed", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0037] Embodiment
[0038] Please refer to Figures 1-8 The utility model provides a kind of crankshaft rotation locking mechanism, including shell 1, screw 2, locking piece 3, crankshaft piece 4, handle 5, sealing element 6, connecting piece 7, connected piece 8, limiting structure 9.
[0039] Further, a plurality of mounting holes are through in shell 1, screw is arranged in mounting hole, the surface of shell 1 and connecting piece 7 abut, the surface of connecting piece 7 is provided with the screw hole corresponding with mounting hole, screw matches screw hole, and shell 1 is fixed on connecting piece 7 by screwing.
[0040] Further, shell 1 is provided with locking piece 3, locking piece 3 abuts with the crankshaft end of crankshaft piece 4, so that the shaft end of different positions on crankshaft is driven to displace the locking end of locking piece 3 when the crankshaft end rotates, at this time, locking end is close to the connecting end surface of connected piece 8, and is clamped together with connecting end surface.
[0041] Preferably, when locking connecting piece 7 and connected piece 8, rotating crankshaft piece 4, the locking end of locking piece 3 is displaced by the rotation of the crankshaft end of crankshaft piece 4, locking piece 3 is locked with connected piece 8, so that connecting piece 7 and connected piece 8 are locked and fixed.
[0042] Please refer to Figures 3-7 In the embodiment, locking piece 3 includes slide column 301, locking tooth 302 and rotating hole 303.
[0043] Crankshaft piece 4 includes rotating shaft 401, limiting shaft 402 and protrusion 403.
[0044] Specifically, the shell 1 is provided with a through hole, and the sliding column 301 is slidably arranged in the through hole of the shell 1, and the sliding direction is perpendicular to the connecting end face of the connected piece 8; the end of the sliding column 301 close to the connected piece 8 is provided with a locking tooth 302, and when the sliding column 301 is displaced in the through hole, the locking tooth 302 is matched with the connecting end face of the connected piece 8.
[0045] Specifically, the rotating shaft 401 is rotatably arranged on the shell 1, and the two ends of the rotating shaft 401 pass through the shell 1, and the outer shaft surface of the rotating shaft 401 is provided with a protrusion 403, the maximum diameter of the protrusion 403 is greater than the diameter of the rotating shaft 401, and the protrusion 403 is arranged as a crankshaft end of the crank 4.
[0046] Among them, the column body of the sliding column 301 is provided with a rotating hole 303, and the through direction of the rotating hole 303 is perpendicular to the axial direction of the sliding column 301; the protrusion 403 is in sliding abutment with one side of the inner hole wall of the rotating hole 303.
[0047] Preferably, the rotating hole 303 on the sliding column 301 is arranged as an oval hole, the short axis side of the oval hole is in abutment with the protrusion 403, the long axis side of the oval hole is not in contact with the protrusion 403, and the short axis direction of the oval hole is consistent with the axial direction of the sliding column 301.
[0048] Preferably, when the rotating shaft 401 rotates, the relatively eccentric protrusion 403 rotates eccentrically in the rotating hole 303, so that when the protrusion 403 rotates to the short axis side of the oval rotating hole 303, a pushing force is applied to the short axis side, so that the sliding column 301 is displaced by the pushing force, and therefore when the protrusion 403 rotates to both sides of the short axis direction of the rotating hole 303, the locking tooth 302 on the sliding column 301 can be locked or unlocked with the connecting end face on the connected piece 8.
[0049] Among them, the maximum diameter of the protrusion 403 is less than the length of the short axis of the rotating hole 303, so that when the protrusion 403 abuts against the short axis side of the rotating hole 303, there is a gap between the other side of the short axis of the rotating hole 303 and the protrusion 403, so as to ensure the displaceability of the sliding column 301.
[0050] In addition, one end of the rotating shaft 401 is also coaxially fixed with a limiting shaft 402, the two ends of the limiting shaft 402 are respectively clamped in the shell 1, the limiting shaft 402 is rotatably connected with the shell 1 together with the rotating shaft 401, and the shaft diameter of the limiting shaft 402 is greater than the shaft diameter of the rotating shaft 401; the limiting shaft 402 is clamped in the shell 1, and is used to limit the axial displacement of the rotating shaft 401, so as to ensure that the protrusion 403 on the rotating shaft 401 is always in the rotating hole 303 of the sliding column 301.
[0051] Further, the sealing member 6 is sleeved on the slide column 301, and is used for sealing the sliding gap between the slide column 301 and the shell 1, so as to avoid the dust in the external environment from entering the sliding gap and affecting the normal sliding of the slide column 301.
[0052] Please refer to Figure 3 and Figure 4 In the embodiment, the sealing member 6 includes an O-shaped ring 601 and a ring groove 602.
[0053] Specifically, the ring groove 602 is arranged on the outer wall of the slide column 301 and is located between the outer wall of the slide column 301 and the inner wall of the through hole of the shell 1, and is used for sleeving the O-shaped ring 601, so that the O-shaped ring 601 arranged in the ring groove 602 is in sliding connection with the inner wall of the through hole of the shell 1, and the O-shaped ring 601 is used to avoid the entry of external dust.
[0054] Please refer to Figure 7 In the embodiment, the rotating shaft 401 is further fixedly connected with a handle 5, the handle 5 is in U-shaped structure, and the two straight rod ends of the U-shaped structure are respectively fixedly connected with the two ends of the rotating shaft 401; when the rotating handle 5 is pulled or buckled, the rotating shaft 401 is driven to rotate, so as to drive the locking member 3 to lock or unlock the connected member 8.
[0055] Please refer to Figure 8 In the embodiment, the connected member 8 includes a mounting plate 801 and a tooth surface 802.
[0056] Specifically, the connecting end surface of the connected member 8 is arranged as the tooth surface 802, and the tooth surface 802 is fixedly arranged on the mounting plate 801.
[0057] When the locking member 3 locks the connected member 8, the locking teeth 302 are engaged with the tooth surface 802, and the connecting member 7 and the connected member 8 are locked together.
[0058] Further, the connecting member 7 is further provided with a limiting assembly, when the locking member 3 does not lock the connected member 8, the locking member 3 is separated from the limiting end of the limiting assembly; when the locking member 3 locks the connected member 8, the crank member 4 is engaged with the limiting end of the limiting assembly, and is used for limiting the rotation of the rotating shaft 401 in the crank member 4, so as to avoid that the rotation of the rotating shaft 401 causes the unlocking separation of the locking member 3 and the connected member 8.
[0059] Please refer to Figure 8 In the embodiment, the limiting assembly includes a limiting plate 901, a connecting plate 902 and a limiting column 903.
[0060] Specifically, the straight rod of the handle 5 is slid through the plate surface of the limiting plate 901, and the limiting plate 901 is rotationally connected to the handle 5 and moves together with the handle 5; the connecting plate 902 is fixedly arranged on the plate surface of the connecting piece 7, the limiting column 903 is fixedly arranged on the connecting plate 902, the axial direction of the limiting column 903 is perpendicular to the plate surface of the limiting plate 901, and the limiting hole is through-arranged on the plate surface of the limiting plate 901.
[0061] When in the unlocked state, the handle 5 and the limiting plate 901 thereon are separated from the limiting column 903 and do not limit; when the locking piece 3 is locked to the connected piece 8, the handle 5 is rotated to the position of the limiting column 903, at this time, the limiting hole on the limiting plate 901 corresponds to the position of the limiting column 903, the limiting plate 901 on the handle 5 is slid to be close to the limiting column 903, the limiting hole and the limiting column 903 are matched together, and the axial direction of the limiting column 903 is perpendicular to the sliding direction of the limiting hole.
[0062] When the handle 5 is swung after being locked, the handle 5 swings together with the limiting plate 901, the limiting plate 901 is limited by the limiting column 903, and thus the swinging angle of the handle 5 is limited to a certain degree, so that the handle 5 is prevented from swinging excessively to rotate the rotating shaft 401 and cause the locking piece 3 to be unlocked.
[0063] Preferably, the diameter of the limiting column 903 is smaller than the hole diameter of the limiting hole, so that there is a gap between the limiting column 903 and the inner wall of the limiting hole, the limiting column 903 is conveniently matched, and the displacement deviation generated by the swinging of the handle 5 is offset, the limiting plate 901 is prevented from being stuck during the swinging of the handle 5, and the limiting plate 901 is prevented from being unable to be separated from the limiting column 903 to unlock the connecting piece 7 and the connected piece 8.
[0064] The embodiments of the utility model have been described in detail. In order to avoid shielding the concept of the utility model, some details known in the art are not described. Those skilled in the art can understand how to implement the technical solutions of the utility model according to the above description, and the scope of the utility model is defined by the appended claims.
Claims
1. A crankshaft rotation locking mechanism, comprising a housing (1), characterized in that, The outer shell (1) is mounted on the connector (7), and a locking member (3) is mounted on the outer shell (1). The locking member (3) abuts against the crankshaft end of the crankshaft member (4), and the locking end of the locking member (3) is engaged with the connecting end face of the connected member (8). The locking member (3) includes a sliding post (301), which slides through the outer shell (1) and the sliding direction is perpendicular to the connecting end face of the connected member (8). The crankshaft component (4) includes a rotating shaft (401), and a protrusion (403) is provided on the outer shaft surface of the rotating shaft (401). The rotating shaft (401) is rotatably mounted on the outer casing (1). The sliding column (301) is provided with a rotating hole (303), and the protrusion (403) slides against one side of the inner wall of the rotating hole (303); The connector (7) is provided with a limiting component. When the locking component (3) does not lock the connected component (8), the locking component (3) is separated from the limiting end of the limiting component. When the locking component (3) locks the connected component (8), the crankshaft component (4) is engaged with the limiting end of the limiting component.
2. The crankshaft rotation locking mechanism according to claim 1, characterized in that, A sealing element (6) is fitted on the sliding column (301), and the sealing element (6) includes an O-ring (601) and an annular groove (602); The annular groove (602) is provided on the outer wall of the sliding column (301). The annular groove (602) is located between the outer wall of the sliding column (301) and the inner wall of the corresponding through hole of the outer shell (1). An O-ring (601) is sleeved inside the annular groove (602). The O-ring (601) slides in contact with the inner wall of the through hole of the outer shell (1).
3. The crankshaft rotation locking mechanism according to claim 1, characterized in that, The rotating hole (303) on the sliding column (301) is set as an elliptical hole, with the short axis side of the elliptical hole abutting against the protrusion (403), and the long axis side of the elliptical hole not contacting the protrusion (403); The short axis of the elliptical hole is aligned with the axial direction of the slide column (301).
4. A crankshaft rotation locking mechanism according to claim 1, characterized in that, One end of the sliding column (301) is provided with a locking tooth (302), and the connecting end face of the connected member (8) is provided with a toothed surface (802); When the locking member (3) locks the connected member (8), the locking teeth (302) engage with the tooth surface (802).
5. A crankshaft rotation locking mechanism according to claim 1, characterized in that, The crankshaft component (4) also includes a limiting shaft (402), which is coaxially fixed to one end of the rotating shaft (401). The shaft diameter of the limiting shaft (402) is larger than that of the rotating shaft (401). The two ends of the limiting shaft (402) are engaged in the housing (1), and the limiting shaft (402) is rotatably connected to the housing (1).
6. A crankshaft rotation locking mechanism according to claim 1, characterized in that, A handle (5) is also fixedly connected to the rotating shaft (401). The handle (5) is a U-shaped structure, and the straight ends of the two ends of the U-shaped structure are fixedly connected to the two ends of the rotating shaft (401).
7. A crankshaft rotation locking mechanism according to claim 1, characterized in that, The limiting component includes a limiting plate (901), which is rotatably connected to the handle (5), and the straight rod of the handle (5) passes through the limiting plate (901); The limiting plate (901) is provided with a limiting hole, which is slidably connected to the limiting post (903). The limiting post (903) is fixed on the connector (7). The direction in which the limiting plate (901) slides through the limiting hole is consistent with the axial direction of the sliding post (301).
8. A crankshaft rotation locking mechanism according to claim 7, characterized in that, The diameter of the limiting post (903) is smaller than the diameter of the limiting hole.