Spreader lock mechanism

Abstract

The present invention provides a sling rotary lock mechanism, comprising: a frame; a lock body, the lock body comprising a lock head and a lock rod connected to the lock head, the lock rod is inserted into the frame, the lock head has a suspension position that cooperates with the hanging object, and a evasion position that avoids the hanging object; a locking part, the locking part is arranged on the frame, the locking part has a locking position that cooperates with the lock body to limit the rotation of the lock body, and an unlocking position that avoids the lock body; a rotation driving part, the rotation driving part is connected to the lock body to drive the lock head to switch between the suspension position and the evasion position when the locking part is in the unlocking position. The locking and unlocking of the lock body are achieved through the cooperation between the locking part and the lock body. After the locking part locks the lock body, the lock body will not rotate regardless of whether the rotation driving part gives power to the lock body, thereby effectively preventing the occurrence of mis-locking, avoiding the loss of goods and personal injury caused by mis-locking, and ensuring production safety.

Description

Technical Field

[0001] The invention relates to the technical field of sling locking equipment, and in particular to a sling rotary lock mechanism. Background Art

[0002] With the development of my country's industrial technology, the use of slings as a loading and unloading tool has gradually expanded in various fields such as railways, highways, ships, mines, airports, and docks, and the demand has also expanded with the continuous innovation of various project construction. However, some slings in the existing technology often have some safety hazards in loading and unloading operations.

[0003] Usually the lifting equipment has a rotary lock mechanism, which is used to lock or unlock. However, during the lifting process, there is a phenomenon of unlocking by mistake. Once the unlocking is successful, it will cause serious loss of goods or even personal injury. Summary of the invention

[0004] The main purpose of the present invention is to provide a sling rotary lock mechanism to solve the problem that the suspension rotary lock mechanism in the prior art is prone to mislocking.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a sling rotary lock mechanism, comprising: a frame; a lock body, the lock body comprising a lock head and a lock rod connected to the lock head, the lock rod is inserted into the frame, the lock head has a hanging position cooperating with the hanging object, and a avoidance position avoiding the hanging object; a locking part, the locking part is arranged on the frame, the locking part has a locking position cooperating with the lock body to limit the rotation of the lock body, and an unlocking position avoiding the lock body; a rotation driving part, the rotation driving part is connected to the lock body to drive the lock head to switch between the hanging position and the avoidance position when the locking part is in the unlocking position.

[0006] Furthermore, the locking part includes a lock sleeve, which is sleeved on the lock rod and movably installed at the bottom of the frame along the axial direction of the lock rod. A limit portion for limiting the rotation of the lock sleeve is provided between the lock sleeve and the frame. The lock sleeve can extend out to cooperate with the lock head to limit the rotation of the lock body.

[0007] Furthermore, a first locking portion is provided on the lock head, and a second locking portion is provided in the lock sleeve. When the lock sleeve is extended, the first locking portion and the second locking portion can cooperate to limit the rotation of the lock body, and when the lock body is retracted, the first locking portion can avoid the second locking portion.

[0008] Furthermore, the rotary drive portion includes a transmission member and a driving mechanism connected to the transmission member, and an end of the lock rod away from the lock head is inserted into the transmission member and is drivingly connected to the transmission member.

[0009] Furthermore, the sling rotary lock mechanism also includes a rotating assembly, which includes a shell, the shell is fixed on the top of the frame, a rotating cavity is formed inside the shell, and the locking rod is inserted into the rotating cavity.

[0010] Furthermore, the rotating assembly also includes a friction reducing member located at one end of the housing away from the lock head, and the interior of the housing and the interior of the friction reducing member together form a rotating chamber.

[0011] Furthermore, the rotary drive unit also includes a stopper, which is fixed to an end of the lock rod away from the lock head, and a stopper surface is provided in the middle of the lock rod. The stopper is connected to the lock rod to limit the transmission member and the housing between the stopper surface and the stopper.

[0012] Furthermore, a flange is provided on the top of the shell, which is connected to the upper end of the frame. The transmission member is a driving disk. One of the driving disk and the flange is provided with a limiting column, and the other is provided with an arc hole, in which the limiting column is passed. When the limiting column is located at one end of the arc hole, the lock body is located in a suspended position, and when the limiting column is located at the other end of the arc hole, the lock body is located in an avoidance position.

[0013] Furthermore, the sling rotary lock mechanism includes an elastic member, which is sleeved on the lock rod, a first end of the elastic member abuts against the bottom of the shell, and a second end of the elastic member abuts against the lock sleeve.

[0014] Furthermore, the lock head includes a main body portion, which is coaxially arranged with the locking rod and extends in a direction parallel to the end face of the locking rod. The first locking portion is arranged on the main body portion and extends toward the tail of the locking rod; the first locking portion is connected to the main body portion, or the first locking portion is connected to both the side of the locking rod and the main body portion.

[0015] By applying the technical solution of the present invention, the sling rotary lock mechanism of the present invention fixes or avoids the suspended object by rotating the lock head, and the present invention is also provided with a locking part, and the locking and unlocking of the lock body are realized through the cooperation between the locking part and the lock body. After the locking part locks the lock body, the lock body will not rotate regardless of whether the rotation drive part gives power to the lock body, thereby effectively preventing the occurrence of mislocking, avoiding cargo loss and personal injury caused by mislocking, and ensuring production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A structural diagram of an embodiment of a sling rotary lock mechanism of the present application is schematically shown;

[0018] Figure 2 The structure diagram of an embodiment of the sling rotary lock mechanism with an elastic member of the present application is schematically shown;

[0019] Figure 3 Schematically shows Figure 2The structural diagram of the sling rotary lock mechanism when it cooperates with the hoisted object;

[0020] Figure 4 Schematically shows Figure 2 A three-dimensional structural diagram of an embodiment of a sling rotary lock mechanism;

[0021] Figure 5 The structure diagram of the transmission member of the present application is schematically shown;

[0022] Figure 6 The structure diagram of the first embodiment of the first locking part of the present application is schematically shown;

[0023] Figure 7 A schematic diagram showing a structure of a second embodiment of the first locking portion of the present application;

[0024] Figure 8 A schematic diagram showing a structure of a third embodiment of the first locking portion of the present application;

[0025] Fig. 9 The structure diagram of the lock head and the hanging hole of the present application is schematically shown;

[0026] The above drawings include the following reference numerals:

[0027] 1. Lock body; 11. Lock head; 111. First locking part; 112. Main body; 12. Lock rod; 121. Stop surface; 2. Frame; 21. Upper plate; 22. Lower plate; 23. Block plate; 3. Lock sleeve; 31. Limiting part; 32. Second locking part; 4. Rotary drive part; 41. Transmission part; 411. Arc hole; 412. Connecting hole; 42. Stopper; 5. Rotating assembly; 51. Shell; 511. Limiting column; 52. Friction reducing part; 6. Driving mechanism; 7. Elastic part; 8. Hanging object; 81. Hanging hole. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] As described in the background technology, the development of slings as a loading and unloading tool has gradually expanded in various fields such as railways, highways, ships, mines, airports, and docks, and the demand has also expanded with the continuous innovation of various project construction. However, some slings in the prior art often have some safety hazards in loading and unloading operations. Usually, the sling has a rotary lock mechanism, which is used to lock or unlock, but during the lifting process, there is a phenomenon of unlocking by mistake. Once the unlocking is successful, it will cause serious loss of goods and even cause personal injury.

[0030] To solve the above problems, see Figures 1 to 9 As shown, an embodiment of the present invention provides a sling rotary lock mechanism, including a frame 2, a lock body 1, a locking part and a rotation drive part 4, wherein the lock body 1 includes a lock head 11 and a lock rod 12 connected to the lock head 11, the lock rod 12 is inserted into the frame 2, the lock head 11 has a hanging position cooperating with the hanging object 8, and a avoidance position avoiding the hanging object 8; the locking part is arranged on the frame 2, the locking part has a locking position cooperating with the lock body 1 to limit the rotation of the lock body 1, and an unlocking position avoiding the lock body 1; the rotation drive part 4 is drivingly connected to the lock body 1 to drive the lock head 11 to switch between the hanging position and the avoidance position when the locking part is in the unlocking position. The sling rotary lock mechanism of the present invention fixes or avoids the suspended object by rotating the lock head, and the present invention is also provided with a locking part, and the locking and unlocking of the lock body are realized through the cooperation between the locking part and the lock body. After the locking part locks the lock body, the lock body will not rotate regardless of whether the rotation drive part gives power to the lock body, thereby effectively preventing the occurrence of mislocking, avoiding cargo loss and personal injury caused by mislocking, and ensuring production safety.

[0031] At the same time, the rotary drive unit is drivingly connected to the lock body. When the rotary drive unit is not working, it can also play a certain locking role on the lock body, and lock the lock body together with the locking unit to achieve double insurance.

[0032] See also Figures 1 to 3 As shown, specifically, the locking part in this embodiment includes a lock sleeve 3, which is sleeved on the lock rod 12 and movably installed at the bottom of the frame 2 along the axial direction of the lock rod 12. A limit portion 31 for limiting the rotation of the lock sleeve 3 is provided between the lock sleeve 3 and the frame 2. The lock sleeve 3 can be extended to cooperate with the lock head to limit the rotation of the lock body 1. In this embodiment, the function of locking the lock body by the locking part is realized by the movement of the lock sleeve. When the lock body needs to be locked, the lock sleeve is driven to move toward the lock head and cooperate with the lock head of the lock body to limit the rotation of the lock body. When it is necessary to unlock, the lock sleeve is driven to move away from the lock head to avoid the lock head, so that the lock body can rotate, and the rotation switch of the lock head is completed.

[0033] In a specific embodiment, a first locking portion 111 is provided on the lock head 11 in this embodiment, and a second locking portion 32 is provided in the lock sleeve 3. When the lock sleeve 3 is extended, the first locking portion 111 can cooperate with the second locking portion 32 to limit the rotation of the lock body 1. When the lock body 1 is retracted, the first locking portion 111 can avoid the second locking portion 32.

[0034] Specifically, the lock sleeve 3 can be sleeved on the lock rod 12 away from or close to the lock head 11, and the end of the lock sleeve 3 away from the lock head 11 passes through the bottom surface of the frame 2. In this embodiment, the lock sleeve 3 includes a limiting portion 31 located on the outer peripheral side and extending along the axial direction of the lock rod 12 and a second locking portion 32 that cooperates with the first locking portion 111. The limiting portion 31 cooperates with the frame 2 to prevent the lock sleeve 3 from rotating, and the second locking portion 32 cooperates with the first locking portion 111 to limit the position, which can prevent the lock body 1 from rotating. When unlocking is required, the lock sleeve is controlled to move away from the lock head, and the second locking portion and the first locking portion are separated from each other, so that the lock body can rotate, completing the rotation switch of the lock head.

[0035] In this embodiment, the lock sleeve 3 includes a flange, which is located at one end of the lock sleeve 3 close to the lock head 11. The bottom surface of the flange can cooperate with the hanging object to lift the lock sleeve, and the top surface of the flange can abut against the bottom surface of the frame. Figure 1 and 2 As shown, when the sling rotary lock mechanism is not matched with the hanging object, the first locking portion 111 of the lock body matches with the second locking portion 32 of the lock sleeve, and the lock sleeve matches with the frame 2 through the limiting portion 31, and the lock body 1 cannot rotate.

[0036] When lifting cargo is required, Fig. 9 As shown, the lock head 11 is inserted into the hanging hole 81 of the hanging object 8, as shown in state A: the two sides of the lock head in the width direction are parallel to the two sides of the hanging hole in the width direction. At this time, the lock head is in the avoidance position and the rotary lock mechanism is in the unlocked state. Figure 3 As shown in FIG. 1 , when the lock sleeve contacts the hanging object 8, the sling rotary lock mechanism continues to fall, and the flange of the lock sleeve is lifted by the hanging object 8 until the flange of the lock sleeve 3 abuts against the bottom surface of the frame, and the sling rotary lock mechanism stops falling. At this time, the first locking portion 111 of the lock body is no longer matched with the second locking portion 32 of the lock sleeve. At this time, the lock body 1 can rotate. Under the action of the rotation drive unit, the lock head rotates by a preset angle, as shown in FIG. Fig. 9 As shown in state B, rotate 90 degrees, and the two sides of the lock head in the width direction are perpendicular to the two sides of the lifting hole in the width direction. At this time, stop rotating, lift the sling rotary lock mechanism, the lock head abuts against the inner wall of the hanging object, and the lock sleeve falls under the action of its own gravity, and cooperates with the first locking part that is higher than the wall thickness of the hanging object, and is in a locked state. At this time, the lock head cannot rotate. During the lifting process, the first locking part 111 of the lock body is always cooperated with the second locking part 32 of the lock sleeve. It should be noted that during the entire lifting process, the lock body 1 is limited by the mechanical structure. Even if the rotation driving part is driven by external force, the lock body 1 cannot rotate, thereby avoiding the problem that the rotary lock mechanism is unlocked and the operation is successful during the lifting process due to misoperation, the hanging object falls, and serious losses are caused.

[0037] In order to provide sufficient rotation space for the locking rod and prevent the locking rod from directly contacting the frame and causing rotation stagnation, the sling rotation lock mechanism in this embodiment also includes a rotating component 5, which is installed at the end of the frame 2 away from the lock head 11. A rotating cavity is formed inside the rotating component 5, and the locking rod 12 is inserted into the rotating cavity.

[0038] Specifically, the rotating assembly 5 in this embodiment includes a shell 51, which is fixed on the top of the frame. A rotating cavity is formed inside the shell, and the locking rod is inserted into the rotating cavity.

[0039] In another embodiment, the rotating assembly further includes a friction reducing member 52 located at one end of the housing 51 away from the lock head 11, and the interior of the housing 51 and the interior of the friction reducing member 52 together form a rotating chamber. The friction reducing member plays a role in reducing friction, so that the lock rod rotates more smoothly. In a preferred embodiment, a bushing is provided between the housing 51 and the lock rod 12 in this embodiment, and the friction reducing member 52 is a thrust bearing.

[0040] When the axial force is small, the transmission member 41 can rotate freely, and only needs a bushing or a sleeve to be embedded in the shell to avoid rotational contact wear; when the axial force is large, it is squeezed by the stopper 42, that is, the nut is tightened and squeezed, and a thrust bearing is required, otherwise the transmission member 41 cannot rotate.

[0041] In order to realize the driving rotation of the lock body, the rotation driving part 4 in this embodiment includes a transmission member 41 and a driving mechanism 6 connected to the transmission member 41. The end of the lock rod 12 away from the lock head 11 is inserted into the transmission member 41 and is drivingly connected to the transmission member 41. The driving mechanism can be any mechanism that can drive the driving member to rotate. The driving mechanism provides power and transmits it to the lock rod through the transmission member to realize the rotation driving of the lock body.

[0042] Specifically, the rotation driving unit 4 further includes a stopper 42, which is fixed to the end of the lock rod 12 away from the lock head 11, and a stopper surface 121 is provided in the middle of the lock rod 12. The stopper 42 is connected to the lock rod 12 to limit the transmission member 41 and the housing 51 between the stopper surface 121 and the stopper 42. Figure 1As shown, the rotary drive unit includes a transmission member 41 and a stop member 42, wherein the stop member is a nut in this embodiment, the transmission member 41 is sleeved on the lock rod 12, and rotates synchronously with the lock rod 12, a stop boss is provided in the middle of the lock rod 12, a stop surface 121 is provided on the stop boss, and the stop member 42 cooperates with the lock rod 12 to limit the transmission member 41 and the housing between the stop surface 121 and the stop member 42. The stop member 42 may be an inlay embedded in the lock rod 12 and the transmission member 41, so that the transmission member 41 rotates synchronously with the lock body 1, and the transmission member will not separate from the lock body when subjected to axial force. Of course, the commonly used method is as shown in the figure, where the stop member 42 is a nut, the transmission member 41 cooperates with the keyway of the lock rod 12, the middle of the lock rod 12 is provided with a stop surface 121, and the stop member 42 is screwed to the lock rod 12 to limit the transmission member 41 and the housing 51 between the stop surface 121 and the stop member 42.

[0043] See also Figure 4 and Figure 5 As shown, the top of the housing 51 in this embodiment is provided with a flange, which is connected to the upper end of the frame 2. The transmission member 41 is a driving disc, one of the driving disc and the flange is provided with a limiting column, and the other is provided with an arc hole 411, and the limiting column is penetrated in the arc hole 411; when the limiting column is located at one end of the arc hole 411, the lock body 1 is located in the hanging position, and when the limiting column is located at the other end of the arc hole 411, the lock body 1 is located in the avoidance position. Figure 5 As shown, in this embodiment, a limiting column 511 is provided on the housing 51 to cooperate with the arc hole 411, the arc line of the arc hole 411 is the central rotation track of the limiting column, the arc hole 411 and the limiting column 511 are clearance-matched, and the transmission member 41 includes a boss protruding along the circumferential direction on the outer peripheral side, the boss is provided with an arc hole 411 and a connecting hole 412 for connecting an external force, and the connecting hole 412 is hingedly connected to the driving mechanism 6. When the limiting column is located at one end of the arc hole 411, the lock body 1 is located at a suspension position, and when the limiting column is located at the other end of the arc hole 411, the lock body 1 is located at an avoidance position, so as to achieve the limit of the rotation angle of the lock body.

[0044] The locking part in this embodiment includes a lock sleeve 3, which is sleeved on the lock rod 12 and movably installed at the bottom of the frame 2 along the axial direction of the lock rod 12. A limit portion 31 for limiting the rotation of the lock sleeve 3 is provided between the lock sleeve 3 and the frame 2. The lock sleeve 3 can be extended to cooperate with the lock body 1 to limit the rotation of the lock body 1. The sling rotary lock mechanism includes an elastic member 7, which is sleeved on the lock rod 12. The first end of the elastic member 7 abuts against the bottom of the shell 51, and the second end of the elastic member 7 abuts against the lock sleeve 3. In order to prevent the lock sleeve 3 from moving unsmoothly along the axial direction, as shown in FIG. Figure 2 and 3As shown, an elastic member 7 can be arranged between the lock sleeve 3 and the shell 51. The elastic member is preferably a spring. The initial state of the elastic member is a natural state or a compressed state. One end abuts against the lock sleeve 3 and the other end abuts against the shell 51. When the sling rotary lock mechanism falls as a whole and the lock sleeve 3 is lifted by the hanging object 8 and abuts against the lower plate 22 of the frame 2, the spring is further compressed. Then the lock body rotates 90 degrees to lift the sling rotary lock mechanism. The lock sleeve 3 is supported by the spring force to support the hanging object. In this process, the spring stretches, but is still in a compressed state, and this state is maintained during the lifting process.

[0045] See also Figures 1 to 8 As shown, the lock head 11 in this embodiment includes a main body 112, which is coaxially arranged with the lock rod 12 and extends in a direction parallel to the end surface of the lock rod 12. The first locking portion 111 is arranged on the main body 112 and extends toward the tail of the lock rod 12; the first locking portion 111 is connected to the main body 112, or the first locking portion 111 is connected to both the side of the lock rod 12 and the main body 112. Specifically, as Figures 1 to 4 As shown, the lock body 1 includes a lock head 11 and a lock rod 12 vertically connected to the lock head 11. The lock head includes a main body 112 and a first locking portion 111. The main body 112 is provided with a first locking portion 111 protruding toward the lock rod. The positional relationship between the first locking portion 111 and the lock rod 12 is shown in FIG. Figure 6 As shown, the locking rod and the first locking portion are arranged concentrically, that is, the axis of the locking rod 12 coincides with the vertical projection of the geometric center of the first locking portion 111, one side of the first locking portion 111 is connected to the main body 112, and the other side of the first locking portion 111 is connected to one end of the locking rod 12; it can also be as shown Figure 7 As shown in , the locking rod 12 is not concentric with the first locking portion 111, and one side of the first locking portion is connected to the main body but not to the locking rod; Figure 8 In the embodiment of the present invention, the first locking portion can be a pin that fits into the main body 112. In the above three embodiments, the first locking portion 111 is a protrusion, and the second locking portion 32 on the lock sleeve is a corresponding groove. Of course, the first locking portion 111 can also be a groove and the second locking portion 32 can be a protrusion. However, in either case, the following conditions must be met: the height of the first locking portion 111 or the second locking portion 32 along the axis of the lock rod is greater than the wall thickness at the corresponding position of the hanging object; the shape of the second locking portion is located in a circle determined by the two relatively parallel sides of the main body 112 as the diameter and the axis of the lock rod as the center, so as not to affect the rotation of the lock body in the hanging hole.

[0046] The limiting part 31 in this embodiment includes a first limiting member and a second limiting member, the first limiting member is arranged on the lock sleeve 3, and the second limiting member is arranged on the frame 2. The first limiting member is a cut surface, a groove or a protrusion, and the second limiting member is adapted to the first limiting member. Figures 1 to 3As shown, the lock sleeve 3 is a metal tube with a flange at one end, and the frame includes an upper plate 21 and a lower plate 22 arranged in parallel. The end of the metal tube away from the flange surface passes through the lower plate 22, and the metal tube is sleeved on the lock rod. The flange is located between the lock body and the lower plate 22. A first limiter extending along the axis direction of the lock rod 12 is provided on the outer wall of the metal tube. The first limiter can be a section, protrusion or groove perpendicular to the flange surface. A corresponding second limiter, such as a special-shaped hole, is provided on the lower plate 22 of the frame to cooperate with it. Of course, the lower plate 22 can also be a round hole that cooperates with the outer wall of the metal tube, such as Figure 2 and Figure 3 As shown, a blocking piece 23 is added, and the blocking piece 23 is fixed on the inner wall of the lower plate 22. The blocking piece 23 cooperates with the limiting portion 31 to prevent the lock sleeve from rotating.

[0047] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0048] The sling rotary lock mechanism of the present invention fixes or avoids the suspended object by rotating the lock head, and the present invention is also provided with a locking part, and the locking and unlocking of the lock body are realized through the cooperation between the locking part and the lock body. After the locking part locks the lock body, the lock body will not rotate regardless of whether the rotation drive part gives power to the lock body, thereby effectively preventing the occurrence of mislocking, avoiding cargo loss and personal injury caused by mislocking, and ensuring production safety.

[0049] It should be noted that the above detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0052] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0053] For ease of description, spatially relative terms such as "on", "above", "on the upper surface of", "upper", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that the spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures.

[0054] For example, if a device in a drawing is inverted, a device described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can encompass both "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0055] In the above detailed description, reference is made to the accompanying drawings, which form a part of this document. In the accompanying drawings, similar symbols typically identify similar components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein. It will be readily understood that aspects of the present disclosure, as generally described herein and illustrated in the accompanying drawings, may be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are expressly contemplated herein.

[0056] The disclosure of the specific embodiments described in this application will not be limited, and it is intended to be illustrated as various aspects. As will be clear to those skilled in the art, many modifications and changes can be made without departing from the spirit and scope of the disclosure. Within the scope of the present disclosure, functionally equivalent methods and devices, in addition to those listed herein, will be clear to those skilled in the art from the foregoing description. Such modifications and changes are intended to fall within the scope of the appended claims. The disclosure will only be limited by the terms of the appended claims and the full scope of equivalents to which such claims are entitled. It will be understood that the disclosure is not limited to specific methods, reagents, compounds, compositions or biological systems, which can certainly vary. It will also be understood that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to be restrictive.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sling rotation lock mechanism, characterized in that: include: Frame (2); A lock body (1), the lock body (1) comprising a lock head (11) and a lock rod (12) connected to the lock head (11), the lock rod (12) being inserted into the frame (2), the lock head (11) having a hanging position for cooperating with a hanging object (8), and a avoiding position for avoiding the hanging object (8); A locking portion, the locking portion being arranged on the frame (2), the locking portion being adapted to cooperate with the lock body (1) to limit the rotation of the lock body (1) to a locked position and to avoid an unlocked position of the lock body (1); A rotation drive unit (4), the rotation drive unit (4) being drivingly connected to the lock body (1) so as to drive the lock head (11) to switch between the suspension position and the avoidance position when the locking unit is in the unlocking position; The locking portion comprises a lock sleeve (3), the lock sleeve (3) being sleeved on the lock rod (12) and being movably mounted on the bottom of the frame (2) along the axial direction of the lock rod (12), a limiting portion (31) for limiting the rotation of the lock sleeve (3) being provided between the lock sleeve (3) and the frame (2), the lock sleeve (3) being able to extend and cooperate with the lock head (11) to limit the rotation of the lock body (1); The lock head (11) is provided with a first locking portion (111), and the lock sleeve (3) is provided with a second locking portion (32); when the lock sleeve (3) is extended, the first locking portion (111) and the second locking portion (32) can cooperate to limit the rotation of the lock body (1); when the lock body (1) is retracted, the first locking portion (111) can avoid the second locking portion (32); The rotary drive unit (4) comprises a transmission member (41) and a driving mechanism (6) connected to the transmission member (41); an end of the locking rod (12) away from the locking head (11) is inserted into the transmission member (41) and is drivingly connected to the transmission member (41).

2. The sling rotation lock mechanism according to claim 1, characterized in that: The sling rotary lock mechanism also includes a rotating assembly (5), and the rotating assembly (5) includes a shell (51). The shell (51) is fixed to the top of the frame, and a rotating cavity is formed inside the shell (51). The locking rod (12) is inserted into the rotating cavity.

3. The sling rotation lock mechanism according to claim 2, characterized in that: The rotating assembly (5) further comprises a friction reducing member (52) located at one end of the housing (51) away from the lock head (11), and the interior of the housing (51) and the interior of the friction reducing member (52) together form a rotating chamber.

4. The hanger rotary lock mechanism according to claim 2, characterized in that: The rotary drive unit (4) further comprises a stopper (42), wherein the stopper (42) is fixed to an end of the lock rod (12) away from the lock head (11), a stopper surface (121) is provided in the middle of the lock rod (12), and the stopper (42) is connected to the lock rod (12) to restrict the transmission member (41) and the housing (51) between the stopper surface (121) and the stopper (42).

5. The sling rotation lock mechanism according to claim 2, characterized in that; A flange is provided on the top of the shell (51), and the flange is connected to the upper end of the frame (2); the transmission member (41) is a drive disk; one of the drive disk and the flange is provided with a limiting column, and the other is provided with an arc-shaped hole (411); the limiting column is passed through the arc-shaped hole (411); when the limiting column is located at one end of the arc-shaped hole (411), the lock body (1) is located at the suspension position, and when the limiting column is located at the other end of the arc-shaped hole (411), the lock body (1) is located at the avoidance position.

6. The sling rotation lock mechanism according to claim 2, characterized in that: The sling rotary lock mechanism also includes an elastic member (7), which is sleeved on the locking rod (12), a first end of the elastic member (7) abuts against the bottom of the shell (51), and a second end of the elastic member (7) abuts against the locking portion.

7. The hanger rotation lock mechanism according to claim 1, characterized in that: The lock head (11) comprises a main body (112), the main body (112) is coaxially arranged with the locking rod (12) and extends in a direction parallel to the end face of the locking rod (12), the first locking portion (111) is arranged on the main body (112) and extends toward the rear end of the locking rod (12); the first locking portion (111) is connected to the main body (112), or the first locking portion (111) is connected to both the side of the locking rod (12) and the main body (112).

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