Positioning frame folding type static load balancing weight hoisting equipment

Abstract

The invention provides positioning frame folding type static load balancing weight hoisting equipment which comprises a fixed support, a sliding rail, a movable support, a clutch piece, a hook and a folding frame, by arranging the movable support and the linkage folding frame to be unfolded on one side of the fixed support or folded on the upper portion area of the fixed support, when the clutch piece drives a hoisting section and a linkage section of the movable support to be combined, the movable support can be conveniently hung on the hook, and the hook is hung on the hook. When the clutch piece enables the lifting section and the linkage section to be separated, the lifting section is lifted to enable the folding frame to be lifted and folded, and when the clutch piece reaches the release position to release the static load balancing weight, the lifting section is lifted to enable the folding frame to be lifted and folded. The hook is unhooked due to loss of the weight of the hoisting part of the static load balancing weight, the hoisting section is put down, the folding frame is released again, the folding frame is unfolded when the static load balancing weight is positioned by the folding frame, the folding frame is folded in the static load balancing weight placing process, stacking is facilitated, and the hoisting, positioning and assembling efficiency and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of static load counterweight hoisting equipment, in particular to a positioning frame folding static load counterweight hoisting equipment. Background Art

[0002] Static load test refers to a test method in which vertical pressure, vertical upward pull or horizontal thrust is applied step by step to the top of the pile, and the settlement, upward pull or horizontal displacement of the pile top over time is observed to determine the corresponding single pile vertical compressive bearing capacity, single pile vertical pull-out bearing capacity or single pile horizontal bearing capacity. Static load counterweights are often used for the experiment.

[0003] At present, the counterweight blocks used in static load tests are heavy and large in size. The existing lifting equipment is shown in technical solution 202421184330.6. The existing solution is to set a fixed positioning frame structure on one side of the lifting equipment to perform the operation of unilateral alignment of the counterweight block.

[0004] However, during the use of the equipment, since the positioning frame is always located on one side of the lifting equipment and the counterweight, the positioning frame on one side needs to be rotated and adjusted before lifting to adapt to the tightly stacked counterweight to be used. When lifting and placing the counterweight, in order to avoid gaps between the stacked static load counterweights or two static load counterweights clamping the positioning frame, the fixed positioning frame causes the static load counterweight to be placed unstably and inconvenient to operate, thereby reducing the operating efficiency. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a positioning frame foldable static load counterweight lifting equipment to solve the problem in the prior art that the single-sided positioning frame needs to be rotated and adjusted before lifting to adapt to the tightly stacked counterweights to be used. When the counterweights are lifted and placed, in order to avoid gaps between the stacked static load counterweights or two static load counterweights clamping the positioning frame, the fixed positioning frame causes unstable placement of the static load counterweight and inconvenient operation, thereby reducing operating efficiency.

[0006] The present invention provides a positioning frame folding static load counterweight hoisting device, comprising a fixed support, a slide rail, a movable support, a clutch, a hook and a folding frame;

[0007] The slide rails are arranged on both sides of the fixed bracket;

[0008] The movable bracket is slidably connected to the slide rail and includes a lifting section and a linkage section;

[0009] The clutch is arranged on the lifting section and the linkage section of the moving support, and is used to connect the lifting section and the linkage section to or separate from the fixed support;

[0010] The hook is hinged on the linkage section of the fixed bracket and connected to the linkage section of the movable bracket through a rope chain or a spring;

[0011] The folding frame is hinged to one side of the fixed support and is in contact with or connected to the movable support, and is used for unfolding at one side of the fixed support or folding at the upper area of ​​the fixed support.

[0012] Different from the prior art, the above technical solution has the following advantages: by setting a moving bracket, the linkage folding frame is unfolded on one side of the fixed bracket or folded in the upper area of ​​the fixed bracket, so that when the clutch drives the lifting section and the linkage section of the moving bracket to combine, the folding frame is unfolded on one side of the fixed bracket to perform positioning processing before the static load counterweight block is hoisted, and the hook hoisting processing of the counterweight block is performed, and when the clutch separates the lifting section and the linkage section, the lifting section is lifted, so that the folding frame is lifted and folded, and when the static load counterweight block is released at the release position, the hook loses the weight of the static load counterweight block hoisting part and is unhooked, and the lifting section is put down at this time to release the folding frame again. Through the clutch and the lifting section and the linkage section of the moving bracket, the folding frame is unfolded when the static load counterweight block is positioned, and the folding frame is folded during the placement of the static load counterweight block, which is convenient for multiple stacking of static load counterweight blocks, and improves the efficiency and accuracy of hoisting, positioning and assembly.

[0013] As a preferred embodiment of the present application, it also includes a yielding rod and a yielding elastic member, one end of the yielding elastic member is connected to the folding frame, and the other end is connected to the yielding rod. By providing the yielding rod and the yielding elastic member, the yielding rod can change its angle during the folding process to be separated from the side edge of the static load counterweight.

[0014] As a preferred embodiment of the present application, it also includes a folding linkage rod, two of which are arranged in the height direction and hinged to the folding frame and the fixed support, and the movable support contacts the bottom of the folding linkage rod to change the angle of the folding linkage rod in the height direction. By setting the folding linkage rod, it is convenient to unfold and store the folding frame in the longitudinal direction.

[0015] As a preferred embodiment of the present application, the folding linkage rods arranged in the height direction are grouped in two, and each group of folding linkage rods is arranged in the horizontal direction of the fixed bracket. By arranging each group of folding linkage rods arranged in the horizontal direction, it is convenient to guide the expansion and contraction of the folding frame.

[0016] As a preferred embodiment of the present application, the movable bracket is provided with a first guide roller, and the first guide roller is in contact with the folding linkage rod. By providing the movable bracket with the first guide roller, it is convenient to guide the folding linkage rod.

[0017] As a preferred embodiment of the present application, the fixed bracket is provided with a bracket guide rail, and the movable bracket is slidably connected to the bracket guide rail through a slider. By providing the bracket guide rail, it is convenient to provide more sliding guide fulcrums for the movable bracket in the process of sliding and guiding the folding frame, so as to avoid the movable bracket from getting stuck on the slide rail when driving the folding frame.

[0018] As a preferred embodiment of the present application, the clutch comprises a steering tooth, a rotating rod, a tooth sliding rod, a hooking rod and a hooking rack. The steering tooth is arranged on the lifting section of the moving bracket, and there are two groups of steering teeth. The two groups of steering teeth are annular structures and are arranged oppositely. The rotating rod is sleeved in the annular structure of the steering tooth. The tooth sliding rod is arranged between the two groups of steering teeth arranged oppositely and is connected to the rotating rod, and is used to drive the rotating rod to rotate when it contacts and slides along the tooth surface of the steering tooth. The hooking rod is connected to the rotating rod, and the hooking rack is arranged on the linkage section of the moving bracket, and is used to be linked with the lifting section of the moving bracket or disengaged from the hooking rod according to the rotation angle of the hooking rod. By setting the clutch comprising the steering tooth, the rotating rod, the tooth sliding rod, the hooking rod and the hooking rack, the unidirectional rotation of the rotating rod can be performed and the lifting section and the linkage section of the moving bracket can be driven to perform the combined movement and separation.

[0019] As a preferred embodiment of the present application, plug-in positioning pieces are provided on both sides of the fixed bracket, and the ends of the plug-in positioning pieces are arranged toward the bottom of the fixed bracket. By providing the plug-in positioning pieces on both sides of the fixed bracket, it is convenient to cooperate with the preset grooves on the static load counterweight block to guide the up and down direction before hooking, thereby improving the accuracy of hooking.

[0020] As a preferred embodiment of the present application, a hooking groove is provided in the middle of the plug-in positioning member, and the size of the hooking groove is larger than the size of the hook. By providing the hooking groove in the middle of the plug-in positioning member, it is convenient to directly perform hooking processing in the middle area where the plug-in positioning member is positioned after the plug-in positioning member is positioned.

[0021] As a preferred embodiment of the present application, the weight of one end of the hook and fixed bracket hinged portion to the hook and movable bracket rope chain connection is greater than the weight of the other end of the hook and fixed bracket hinged portion. By making the weight of one end of the hook and fixed bracket hinged portion to the hook and movable bracket rope chain connection greater than the weight of the other end of the hook and fixed bracket hinged portion, it is convenient to unlock the hook under gravity when the movable bracket linkage section does not apply tension through the rope chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a rear view of the hoisting state of the positioning frame folding static load counterweight hoisting device in the embodiment of the present invention;

[0024] Figure 2 It is a rear view of the unlocked state of the positioning frame foldable static load counterweight hoisting device in the embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the detailed structure of the lifting section of the movable support in an embodiment of the present invention;

[0026] Figure 4 A detailed structural diagram of a first motion state of a clutch member in an embodiment of the present invention;

[0027] Figure 5 A detailed structural diagram of the second motion state of the clutch member in an embodiment of the present invention;

[0028] Figure 6 It is a side view of the hoisting state of the positioning frame folding static load counterweight hoisting device in the embodiment of the present invention;

[0029] Figure 7 It is a side view of the unlocked state of the positioning frame foldable static load counterweight hoisting device in the embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the top view of the structural motion state of the rotating rod and the hook rack in an embodiment of the present invention;

[0031] Fig. 9 A detailed structural diagram of a static load counterweight block in an embodiment of the present invention;

[0032] Fig.10 This is a schematic diagram of the hoisting state of the hook in an embodiment of the present invention;

[0033] Fig.11 Schematic diagram of the unlocked state of the hook in the embodiment of the present invention.

[0034] The reference numerals in the above drawings are described as follows:

[0035] 10. Fix the bracket;

[0036] 11. Bracket guide rail; 12. Plug-in positioning piece; 13. Hook slot;

[0037] 20. Slide rail;

[0038] 30. Moving bracket;

[0039] 31. Lifting section; 32. Linkage section; 33. First guide roller;

[0040] 34. Linkage segment slider;

[0041] 40. Clutch parts;

[0042] 41. Steering gear; 42. Rotating rod; 43. Gear sliding rod; 44. Hooking rod; 45. Hooking rack;

[0043] 50. Hook;

[0044] 60. Folding rack;

[0045] 61. yielding rod; 62. yielding elastic member; 63. folding linkage rod;

[0046] 70. Static load counterweight;

[0047] 71. Hooking portion; 72. Groove. DETAILED DESCRIPTION

[0048] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0049] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0050] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0051] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0052] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0053] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0054] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0055] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0056] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0057] Please also read Figures 1 to 11 A positioning frame folding static load counterweight lifting device comprises a fixed support 10, a slide rail 20, a movable support 30, a clutch 40, a hook 50 and a folding frame 60. The slide rail 20 is arranged on both sides of the fixed support 10, one end of the slide rail 20 is connected to the fixed support 10, and the other end is arranged upward. The movable support 30 is slidably connected to the slide rail 20, and can slide between the upper and lower ends of the slide rail 20. The movable support 30 includes a lifting section 31 and a linkage section 32. The lifting section 31 is connected to an external lifting device, such as a winch, through a rope chain or a hook 50, so that the external lifting device can pull the lifting section 31 to lift and lower. The linkage section 32 is arranged below the lifting section 31, and the lifting section 31 and the linkage section 32 are both slidably connected to the slide rail 20 through rollers or sliders. The clutch 40 is arranged on the lifting section 31 and the linkage section 32 of the movable support 30, and is used to connect or disconnect the lifting section 31 and the linkage section 32 from the fixed support 10. The hook 50 is hinged on the linkage section 32 of the fixed support 10, and is connected to the linkage section 32 of the moving support 30 through a rope chain or a spring. The folding frame 60 is hinged on one side of the fixed support 10, and is in contact with or connected to the moving support 30, and is used to be unfolded on one side of the fixed support 10 or folded in the upper area of ​​the fixed support 10. The static load counterweight 70 is provided with grooves 72 on both sides, and a hook portion 71 is provided in the area where the groove 72 is located or above the area where the groove 72 is located. The hook portion 71 can be a pre-buried steel bar or an open hole structure, and a clearance space is provided on the static load counterweight 70 for the hoisting hook to be hooked on the hook portion 71.

[0058] According to the above structure, during the operation of the positioning frame foldable static load counterweight 70 hoisting equipment, the operator operates the crane and relies on the rope chain on the crane to hook the lifting section 31 of the moving bracket 30. The lifting section 31 contacts the upper end of the slide rail 20 to ensure that the fixed bracket 10 structure is hoisted together. The fixed bracket 10 is driven to reach the stacking area of ​​the static load counterweight 70. At this time, the lifting section 31 of the moving bracket 30 is lowered, and the lifting section 31 drives the linkage section 32 to be lowered together through the clutch 40 in the engaged state. The rope chain connecting the linkage section 32 of the moving bracket 30 and the hook 50 is relaxed, and the hooks 50 hinged on both sides of the fixed bracket 10 are in an unfolded state away from each other, so that the hooks 50 can reach both sides of the hooking part 71 of the static load counterweight 70. And when the lifting section 31 of the moving bracket 30 is lowered, the lifting section 31 of the moving bracket 30 drives the folding frame 60 to be lowered together, and is unfolded and set on one side of the fixed bracket 10.

[0059] Then, the positioning frame folding static load counterweight block 70 lifting equipment is moved to the area where the static load counterweight block 70 is located, and the folding frame 60 is initially positioned by contacting one side of the static load counterweight block 70, and then the fixed bracket 10 is lowered until the fixed bracket 10 reaches the top area of ​​the static load counterweight block 70. Then, the fixed bracket 10 is supported by the top of the static load counterweight block 70, and the crane continues to release the lifting section 31 of the moving bracket 30. The lifting section 31 of the moving bracket 30 continues to slide on the slide rail 20 toward the fixed bracket 10 until it reaches the area where the linkage section 32 is located. The clutch 40 connects the lifting section 31 and the linkage section 32. The operator pulls the lifting section 31 of the moving bracket 30 upwards through the crane, and the lifting section 31 drives the linkage section 32 to lift together. During the lifting process, the rope chain or spring of the linkage section 32 connects the hook 50, so that one end of the hook 50 is pulled up, and the hook body at the other end of the hook 50 approaches each other on both sides of the fixed bracket 10, and then enters the hook part 71 of the static load counterweight 70 for hooking. During the lifting process of the moving bracket 30, the folding frame 60 is driven by the linkage section 32 of the passive bracket 30 to lift, detach from the side of the static load counterweight 70, and return to the folded state above the static load counterweight 70. This allows the static load counterweight 70 to be stacked close to all sides.

[0060] When the static load counterweight 70 reaches the area to be placed, the bottom of the static load counterweight 70 contacts first and then stops, the fixed bracket 10 is placed on the top of the static load counterweight 70, and the dynamic bracket 30 is lowered along the slide rail 20. The lifting section 31 and the linkage section 32 of the dynamic bracket 30 are both lowered, and the folding frame 60 loses contact with the linkage section 32 and presses on the top of the static load counterweight 70 to be unfolded. After the end of the hook 50 loses the tension of the rope chain or spring, the hooks 50 at both ends of the fixed bracket 10 move away from each other and leave the hooking part 71 of the static load counterweight 70 under the gravity of the end with a larger weight, that is, the end where the hook 50 is connected to the rope chain or spring, or under the control of the preset unidirectional rotation driving structure, In addition, the clutch 40 is unlocked, the lifting section 31 and the linkage section 32 are separated, and when the operator pulls the movable bracket 30 to lift the lifting section 31, the linkage section 32 is kept stationary, so that the hook 50 is maintained in the unfolded unlocked state, and the folding frame 60 is unfolded after leaving the static load counterweight 70. The next static load counterweight 70 is hoisted.

[0061] By setting the movable bracket 30, the linkage folding frame 60 is unfolded on one side of the fixed bracket 10 or folded in the upper area of ​​the fixed bracket 10, so that when the clutch 40 drives the lifting section 31 and the linkage section 32 of the movable bracket 30 to be combined, the folding frame 60 is unfolded on one side of the fixed bracket 10 to perform positioning processing before lifting the static load counterweight block 70, and to lift the hook 50 of the counterweight block. When the clutch 40 separates the lifting section 31 and the linkage section 32, the lifting section 31 is lifted, so that the folding frame 60 is lifted and folded. When the static load counterweight block 70 is released at the release position, the hook 50 loses the weight of the lifting part of the static load counterweight block 70 and is unhooked, and at this time, the lifting section 31 is put down to release the folding frame 60 again. By cooperating with the lifting section 31 and the linkage section 32 of the movable bracket 30 through the clutch 40, the folding frame 60 is unfolded when positioning the static load counterweight block 70, and the folding frame 60 is folded during the placement of the static load counterweight block 70, so as to facilitate multiple stacking of the static load counterweight blocks 70 and improve the efficiency and accuracy of lifting, positioning and assembly.

[0062] Please also read Figures 1 to 11 As a preferred embodiment of the present application, it also includes a yielding rod 61 and a yielding elastic member 62. One end of the yielding elastic member 62 is connected to the folding frame 60, and the other end is connected to the yielding rod 61. The yielding elastic member 62 is a spring. By providing the yielding rod 61 and the yielding elastic member 62, it is convenient for the yielding rod 61 to change its angle during the folding process so as to be separated from the side edge of the static load counterweight 70.

[0063] Please also read Figures 1 to 11As a preferred embodiment of the present application, it also includes a folding linkage rod 63, the number of which is two and arranged in the height direction, hinged to the folding frame 60 and the fixed frame 10, and the movable frame 30 contacts the bottom of the folding linkage rod 63 to change the angle of the folding linkage rod 63 in the height direction. By setting the folding linkage rod 63, it is convenient to unfold and store the folding frame 60 in the longitudinal direction. During the movement, the lifting section 31 of the movable frame 30 has a preset contact structure and contacts the bottom of the folding linkage rod 63. During the lifting and lowering process of the lifting section 31 of the movable frame 30, the folding linkage rod 63 is driven to change the angle in the height direction along the hinge point, thereby driving the folding frame 60 to lift and lower. During the movement, if the folding frame 60 is interfered by the top of the static load counterweight 70 and cannot continue to descend, the lifting section 31 of the movable frame 30 can leave the folding linkage rod 63 and continue to move.

[0064] Please also read Figures 1 to 11 As a preferred embodiment of the present application, the folding linkage rods 63 arranged in the height direction are grouped in two, and each group of folding linkage rods 63 is arranged in the horizontal direction of the fixed bracket 10. By arranging each group of folding linkage rods 63 arranged in the horizontal direction, it is convenient to guide the expansion and contraction of the folding frame 60.

[0065] Please also read Figures 1 to 11 As a preferred embodiment of the present application, the movable bracket 30 is provided with a first guide roller 33, and the first guide roller 33 is in contact with the folding linkage rod 63. By providing the movable bracket 30 with the first guide roller 33, it is convenient to guide the folding linkage rod 63. Specifically, the first guide roller 33 is provided on the linkage section 32 of the movable bracket 30,

[0066] Please also read Figures 1 to 11 As a preferred embodiment of the present application, the fixed bracket 10 is provided with a bracket guide rail 11, and the movable bracket 30 is slidably connected to the bracket guide rail 11 through a slider. By providing the bracket guide rail 11, it is convenient to provide more sliding guide fulcrums for the movable bracket 30 during the process of sliding and guiding the folding frame 60, so as to avoid the movable bracket 30 from getting stuck on the slide rail 20 when driving the folding frame 60.

[0067] Please also read Figures 1 to 11As a preferred embodiment of the present application, the clutch 40 includes a steering tooth 41, a rotating rod 42, a tooth sliding rod 43, a hook rod 44 and a hook rack 45. The steering tooth 41 is arranged on the lifting section 31 of the moving bracket 30, and there are two groups of steering teeth 41. The two groups of steering teeth 41 are annular structures and are arranged opposite to each other. The rotating rod 42 is sleeved in the annular structure of the steering tooth 41. The tooth sliding rod 43 is arranged between the two groups of oppositely arranged steering teeth 41 and is connected to the rotating rod 42, and is used to drive the rotating rod 42 to rotate when it contacts and slides along the tooth surface of the steering tooth 41. The hook rod 44 is connected to the rotating rod 42, and the hook rack 45 is arranged on the linkage section 32 of the moving bracket 30, and is used to be linked with the lifting section 31 of the moving bracket 30 or disengaged from the hook rod 44 according to the rotation angle of the hook rod 44. By setting the clutch 40 including the steering gear 41, the rotating rod 42, the gear sliding rod 43, the hook rod 44 and the hook rack 45, the rotating rod 42 can be rotated in one direction and the lifting section 31 and the linkage section 32 of the movable bracket 30 can be driven to perform the combined movement and separation. The hook rack 45 is a rectangular structure in a top view, the length of the rectangular structure is greater than the length of the two ends of the hook rod 44 on the rotating rod 42, and the width of the rectangular structure is less than the length of the two ends of the hook rod 44 on the rotating rod 42.

[0068] During the lifting process, when the lifting section 31 and the linkage section 32 of the moving bracket 30 need to be unlocked, when the linkage section 32 reaches the bottom area of ​​the slide rail 20 or contacts the static bracket and remains stationary, the lifting section 31 continues to be lowered, and the lifting section 31 drives the rotating rod 42 to continue to be lowered. The bottom of the rotating rod 42 contacts the linkage section 32, and in the process of the lifting section 31 continuing to be lowered, the rotating rod 42 slides upward relative to the lifting section 31 along the height direction at the center of the steering tooth 41 of the annular structure, and the tooth sliding rod 43 of the rotating rod 42 first contacts the tooth surface of the steering tooth 41 located at the upper part Under the guidance of the tooth surface, the rotating rod 42 rotates, and then lifts the linkage section 32. The rotating rod 42 slides downward relative to the lifting section 31 along the height direction at the center of the steering tooth 41 of the annular structure, and the tooth sliding rod 43 continues to contact the steering tooth 41 located at the bottom and continues to rotate. The lifting section 31 is lifted and lowered multiple times. While keeping the height of the linkage section 32 and the rotating rod 42 unchanged, after a single or multiple steering tooth 41 guidance, until the hook rod 44 does not overlap with the projection surface of the hook rack 45 in the height direction, it is separated from the hook rack 45, so that the lifting section 31 can be lifted alone.

[0069] When it is necessary to perform a linkage operation on the lifting section 31 and the linkage section 32 of the moving bracket 30, when the linkage section 32 reaches the bottom area of ​​the slide rail 20 or contacts the static bracket and remains stationary, the lifting section 31 continues to be lowered, and the lifting section 31 drives the rotating rod 42 to continue to descend, and the rotating rod 42 contacts the linkage section 32. In the process of the lifting section 31 continuing to be lowered, the tooth sliding rod 43 of the rotating rod 42 first contacts the tooth surface of the steering tooth 41 located at the upper part, and under the guidance of the tooth surface, the rotating rod 42 rotates, and then lifts the linkage section 32, and the tooth sliding rod 43 continues to contact the steering tooth 41 located at the lower part, and continues to rotate (in other embodiments, the steering tooth 41 can be set at only one of the upper or lower positions) until the hook rod 44 coincides with the projection surface of the hook rack 45 in the height direction. When the lifting section 31 is lifted, the hook rod 44 of the rotating rod 42 contacts the bottom of the position where the projection surface of the hook rack 45 coincides, so that the lifting section 31 and the linkage section 32 are lifted together.

[0070] In the above embodiment, a distance is set between the hook bracket 45 and the linkage section 32 in the height direction, so that the hook rod 44 can move between the hook bracket 45 and the top of the linkage section 32 when the rotating rod 42 is raised or lowered.

[0071] Please also read Figures 1 to 11 As a preferred embodiment of the present application, the fixed bracket 10 is provided with plug-in positioning pieces 12 on both sides, and the ends of the plug-in positioning pieces 12 are arranged toward the bottom of the fixed bracket 10. By providing the plug-in positioning pieces 12 on both sides of the fixed bracket 10, it is convenient to cooperate with the preset grooves 72 on the static load counterweight 70 to guide the upper and lower directions before hooking, thereby improving the accuracy of hooking.

[0072] Please also read Figures 1 to 11 As a preferred embodiment of the present application, a hooking groove 13 is provided in the middle of the plug-in positioning member 12, and the size of the hooking groove 13 is larger than the size of the hook 50. By providing the hooking groove 13 in the middle of the plug-in positioning member 12, it is convenient to directly perform hooking processing in the middle area where the plug-in positioning member 12 is positioned after the plug-in positioning member 12 is positioned.

[0073] Please also read Figures 1 to 11 As a preferred embodiment of the present application, the weight of one end of the hook 50 and the fixed bracket 10 hinged portion to the hook 50 and the moving bracket 30 rope chain connection is greater than the weight of the other end of the hook 50 and the fixed bracket 10 hinged portion. By making the weight of one end of the hook 50 and the fixed bracket 10 hinged portion to the hook 50 and the moving bracket 30 rope chain connection greater than the weight of the other end of the hook 50 and the fixed bracket 10 hinged portion, it is convenient to unlock the hook 50 under gravity when the linkage section 32 of the moving bracket 30 does not apply tension through the rope chain.

[0074] In the above embodiment, the hook 50 can be electrically driven and cooperated with a one-way locking gear to perform a one-way operation in the unlocking direction. When locked, it still relies on the linkage section 32 of the moving bracket 30 to be connected through a rope chain or spring. The clutch 40 can use an electrically driven locking and unlocking mechanism to lock the lifting section 31 and the linkage section 32 for joint movement or unlock and separate operations.

[0075] Please also read Figure 4 and Figure 5 In the above embodiment, the steering tooth 41 is an annular rack structure, and the tooth structures of the annular racks located above and below are arranged relatively to each other. The tooth structures are all provided with unidirectional bevels, and the bevels are all inclined toward one side. In the relatively arranged tooth structures, the middle part of the unidirectional bevel of the tooth structure of the upper steering tooth 41 corresponds to the end part of the unidirectional bevel of the tooth structure of the lower steering tooth 41, and the end part of the unidirectional bevel of the tooth structure of the upper steering tooth 41 corresponds to the middle part of the unidirectional bevel of the tooth structure of the lower steering tooth 41, so that during the up and down sliding of the rotating rod 42, the tooth sliding rod 43 can perform continuous unidirectional rotation between the upper steering tooth 41 and the lower steering tooth 41.

[0076] Please also read Figures 1 to 11 In some preferred embodiments, in order to ensure that the linkage section 32 of the movable bracket 30 can support the folding linkage rod 63 in the height direction and avoid jamming that affects the working efficiency of the structure, a linkage section slider 34 can be separately provided to be slidably connected to a track separately provided on the fixed bracket 10 for multi-directional guidance and support.

[0077] In the above embodiment, in order to ensure that the linkage section 32 can drive the folding linkage rod 63 or set the first guide roller 33 to drive the folding linkage rod 63, it can be extended toward the front direction of the device so that the contact or connection position leaves the area where the hinge point of the folding linkage rod 63 is located.

[0078] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A positioning frame foldable static load counterweight hoisting device, characterized in that: It includes a fixed bracket, a slide rail, a movable bracket, a clutch, a hook and a folding bracket; The slide rails are arranged on both sides of the fixed bracket; The movable bracket is slidably connected to the slide rail and includes a lifting section and a linkage section; The clutch is arranged on the lifting section and the linkage section of the moving support, and is used to connect the lifting section and the linkage section to or separate from the fixed support; The hook is hinged on the linkage section of the fixed bracket and connected to the linkage section of the movable bracket through a rope chain or a spring; The folding frame is hinged to one side of the fixed support and is in contact with or connected to the movable support, and is used for unfolding at one side of the fixed support or folding at the upper area of ​​the fixed support.

2. The positioning frame foldable static load counterweight hoisting device according to claim 1 is characterized in that: The utility model also comprises a yielding rod and a yielding elastic member, wherein one end of the yielding elastic member is connected to the folding frame, and the other end is connected to the yielding rod.

3. The positioning frame foldable static load counterweight hoisting device according to claim 1 is characterized in that: It also includes two folding linkage rods, which are arranged along the height direction and are hinged on the folding frame and the fixed support. The movable support contacts the bottom of the folding linkage rod to change the angle of the folding linkage rod in the height direction.

4. The positioning frame foldable static load counterweight hoisting device according to claim 3 is characterized in that: The folding linkage rods arranged along the height direction are arranged in groups of two, and each group of folding linkage rods is arranged in a horizontal direction along the fixed bracket.

5. The positioning frame foldable static load counterweight hoisting device according to claim 3 is characterized in that: The movable bracket is provided with a first guide roller, and the first guide roller is in contact with the folding linkage rod.

6. The positioning frame foldable static load counterweight hoisting device according to claim 1, characterized in that: The fixed bracket is provided with a bracket guide rail, and the movable bracket is slidably connected with the bracket guide rail through a slider.

7. The positioning frame foldable static load counterweight hoisting device according to claim 1 is characterized in that: The clutch comprises a steering tooth, a rotating rod, a tooth sliding rod, a hook rod and a hook rack. The steering tooth is arranged on the lifting section of the moving bracket, and there are two groups of the steering teeth. The two groups of steering teeth are annular structures and are arranged opposite to each other. The rotating rod is sleeved in the annular structure of the steering tooth. The tooth sliding rod is arranged between the two groups of oppositely arranged steering teeth and is connected to the rotating rod, and is used to drive the rotating rod to rotate when it contacts and slides along the tooth surface of the steering tooth. The hook rod is connected to the rotating rod, and the hook rack is arranged on the linkage section of the moving bracket, and is used to be linked with the lifting section of the moving bracket or disengaged from the hook rod according to the rotation angle of the hook rod.

8. The positioning frame foldable static load counterweight hoisting device according to claim 1, characterized in that: Insertion positioning pieces are arranged on both sides of the fixed bracket, and the ends of the insertion positioning pieces are arranged toward the bottom of the fixed bracket.

9. The positioning frame foldable static load counterweight hoisting device according to claim 8, characterized in that: A hook groove is provided in the middle of the plug-in positioning piece, and the size of the hook groove is larger than the size of the hook.

10. The positioning frame foldable static load counterweight hoisting device according to claim 1, characterized in that: The weight of one end of the hook and the fixed bracket hinged portion to the hook and the movable bracket rope chain connection is greater than the weight of the other end of the hook and the fixed bracket hinged portion.

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