A lifting clamp

Abstract

This application discloses a lifting clamp, belonging to the field of construction auxiliary tools. The lifting clamp includes a housing, a first fixed shaft, an eccentric wheel, a connecting shaft, an operating rod, a second fixed shaft, an elastic element, a connecting rod, and a limiting mechanism. The housing has a receiving cavity with an opening on one side and is provided with a hook portion; both the first and second fixed shafts are located inside the housing; the eccentric wheel is rotatably connected to the first fixed shaft; the connecting shaft is disposed on the eccentric wheel; the operating rod is connected to the connecting shaft; the elastic element is connected to both the connecting shaft and the second fixed shaft; one end of the connecting rod is connected to the connecting shaft; the limiting mechanism includes a limiting element and a movable component. The limiting element has a limiting groove, a first sliding groove, and a second sliding groove. The limiting groove communicates with the first and second sliding grooves respectively, and the first sliding groove communicates with the second sliding groove. The movable component is slidably connected to the limiting groove, the first sliding groove, and the second sliding groove. The other end of the connecting rod is hinged to the movable component. The lifting clamp provided by this application improves the convenience and safety of lifting.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction auxiliary tools, and in particular to a hoisting clamp. BACKGROUND

[0002] With the state vigorously promoting the construction industry to the direction of intelligent construction, building construction assembly and industrialization have become an inevitable trend. Steel reinforcement engineering still uses traditional construction technology, and steel reinforcement framework is spliced and bound at the corresponding parts of building beams, columns and shear wall components. With the development of building construction industrialization, in the future, the steel reinforcement framework of beams, columns and shear walls will be assembled in the factory or construction site, and then hoisted to the corresponding parts of the beam, column and shear wall component. The hoisting clamp is an indispensable part of the connection between the steel reinforcement framework and the hoisting device during the hoisting of the steel reinforcement framework. Therefore, there is an urgent need to provide a hoisting clamp that is convenient to assemble and disassemble and has high safety. SUMMARY

[0003] Therefore, the purpose of the present application is to overcome the shortcomings of the prior art, and to provide a hoisting clamp to solve the technical problems of inconvenient assembly and disassembly and low safety of the prior art.

[0004] To solve the above technical problems, the present application provides:

[0005] A hoisting clamp comprises:

[0006] A box body has a one-side opening accommodating cavity, and the box body is provided with a hook portion near the opening side, the hook portion is used for hooking the hoisted part, and the opening is in communication with the accommodating cavity and the hook portion, respectively;

[0007] A first fixed shaft is arranged on the inner side wall of the box body;

[0008] An eccentric wheel is arranged on the first fixed shaft and rotatably connected with the first fixed shaft;

[0009] A connecting shaft is arranged on the eccentric wheel and spaced apart from the first fixed shaft;

[0010] An operating rod is arranged outside the box body at one end and connected with the eccentric wheel at the other end through the connecting shaft;

[0011] A second fixed shaft is arranged on the inner side wall of the box body and spaced apart from the first fixed shaft and the connecting shaft, respectively;

[0012] A resilient member is connected with the connecting shaft and the second fixed shaft, respectively;

[0013] A connecting rod is fixedly connected with the connecting shaft at one end;

[0014] The limiting mechanism is arranged on the inner bottom wall of the box body, and comprises a limiting piece and a movable assembly. The limiting piece is provided with a limiting slot, a first sliding slot and a second sliding slot. The limiting slot is in communication with the first sliding slot and the second sliding slot. The first sliding slot is in communication with the second sliding slot. The movable assembly is in sliding connection with the limiting slot, the first sliding slot and the second sliding slot. One end of the connecting rod, which is away from the connecting shaft, is hingedly connected with the movable assembly.

[0015] In addition, the hoisting clamp according to the present application can further have the following additional technical features:

[0016] In some embodiments of the present application, the movable assembly comprises a first movable piece, a second movable piece and a sliding piece. The second movable piece is arranged on one side of the first movable piece close to the limiting piece. The second movable piece is provided with a third sliding slot. One end of the sliding piece is in sliding connection with the limiting slot, the first sliding slot and the second sliding slot, and the other end is in sliding connection with the third sliding slot. The first movable piece is in sliding connection with the limiting piece. One end of the connecting rod, which is away from the connecting shaft, is hingedly connected with the first movable piece.

[0017] In some embodiments of the present application, one side of the first movable piece close to the limiting piece is provided with a mounting slot. The second movable piece is arranged in the mounting slot.

[0018] In some embodiments of the present application, one side of the first movable piece close to the limiting piece is provided with a sliding protrusion. The limiting piece is provided with a fourth sliding slot matched with the sliding protrusion.

[0019] In some embodiments of the present application, one side of the box body, which is away from the opening, is provided with a avoiding hole in communication with the accommodating cavity. One end of the operating rod is arranged outside the box body, and the other end is arranged in the avoiding hole and connected with the connecting shaft.

[0020] In some embodiments of the present application, the operating rod comprises a first rod part, a second rod part and a connecting rod part. One end of each of the first rod part and the second rod part is arranged outside the box body, and the other end of each of the first rod part and the second rod part is arranged in the avoiding hole and hingedly connected with the first fixed shaft. The first rod part and the second rod part are respectively arranged on two opposite sides of the eccentric wheel. The connecting shaft is connected with the first rod part and the second rod part. The connecting rod part is connected with one end of the first rod part and one end of the second rod part, which are away from the connecting shaft.

[0021] In some embodiments of the present application, the eccentric wheel is provided with a second mounting hole. One end of the connecting shaft is connected with the first rod part, and the other end is arranged in the second mounting hole and connected with the second rod part.

[0022] In some embodiments of the present application, the eccentric wheel is provided with a first mounting hole matched with the first fixed shaft, and the hole wall of the first mounting hole is rotatably connected with the first fixed shaft.

[0023] In some embodiments of the present application, the circumferential wall of the eccentric wheel is provided with a tooth-shaped part.

[0024] In some embodiments of the present application, the box is provided with a lifting connecting part, and the lifting connecting part is located at one end of the box away from the limiting mechanism.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] The present application provides a lifting clamp. When the hoisting of the to-be-lifted part is needed, the operator can rotate the operating rod clockwise to drive the connecting shaft, the eccentric wheel and the connecting rod to rotate clockwise synchronously, so that the movable assembly is driven to slide downward out of the limiting groove under the action of the connecting rod. After the movable assembly slides downward out of the limiting groove, the operator releases the operating rod. Under the action of the reset contraction force of the elastic member, the connecting shaft, the eccentric wheel, the operating rod and the connecting rod are automatically driven to rotate counterclockwise, and the movable assembly is automatically driven to slide upward along the first sliding groove. Then, the eccentric wheel passes through the opening to press the to-be-lifted part on the hook part, effectively improving the lifting safety. In addition, when hoisting, the to-be-lifted part has a downward movement trend relative to the lifting clamp under the action of its own gravity, so that the eccentric wheel has a counterclockwise rotation trend under the frictional contact of the to-be-lifted part and the eccentric wheel, thereby further pressing the to-be-lifted part, and further improving the lifting safety.

[0027] When the to-be-lifted part needs to be removed after hoisting is completed, the operator can rotate the operating rod clockwise to drive the connecting shaft, the eccentric wheel and the connecting rod to rotate clockwise synchronously, so that the eccentric wheel is separated from the to-be-lifted part, and the to-be-lifted part can be removed. At the same time, the movable assembly is driven to slide downward along the second sliding groove under the action of the connecting rod. When the movable assembly slides downward along the second sliding groove and approaches the limiting groove, the operator releases the operating rod. Under the action of the reset contraction force of the elastic member, the connecting shaft, the eccentric wheel, the operating rod and the connecting rod are automatically driven to rotate counterclockwise, and the movable assembly is automatically driven to slide upward along the limiting groove to be clamped into the limiting groove, so that the eccentric wheel and the to-be-lifted part remain in a separated state, thereby facilitating the removal of the to-be-lifted part. The lifting clamp provided by the present application can realize the assembly and disassembly of the to-be-lifted part by rotating the operating rod, which is simple and convenient to operate, and can effectively improve the lifting safety. BRIEF DESCRIPTION OF DRAWINGS

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A perspective view of the lifting clamps in some embodiments of this application is shown;

[0030] Figure 2 Perspective perspective views of lifting clamps in some embodiments of this application are shown;

[0031] Figure 3 An exploded view of the lifting clamp omitting the limiting mechanism is shown in some embodiments of this application;

[0032] Figure 4 A perspective view of the limiting mechanism in some embodiments of this application is shown;

[0033] Figure 5 An exploded view of the limiting mechanism in some embodiments of this application is shown;

[0034] Figure 6 This invention provides a front view schematic of the limiting mechanism omitting the first movable member in some embodiments of the present application. Figure 1 ;

[0035] Figure 7 This application shows schematic diagrams illustrating the state of the lifting clamp pressing the part to be lifted in some embodiments;

[0036] Figure 8 This invention provides a front view schematic of the limiting mechanism omitting the first movable member in some embodiments of the present application. Figure 2 .

[0037] Explanation of key component symbols:

[0038] 100 - Lifting clamps;

[0039] 110 - Housing; 111 - Opening; 112 - Receiving cavity; 113 - Hook; 114 - Clearance hole; 115 - Lifting part;

[0040] 120 - First fixed axis;

[0041] 130 - Eccentric wheel; 131 - Second mounting hole; 132 - First mounting hole; 133 - Toothed part;

[0042] 140 - Connecting shaft;

[0043] 150 - Operating lever; 151 - First lever section; 152 - Second lever section; 153 - Connecting lever section;

[0044] 160 - Second fixed axis;

[0045] 170 - Elastic component;

[0046] 180-Connecting rod;

[0047] 190 - Limiting mechanism; 191 - Limiting component; 1911 - Limiting groove; 1912 - First slide groove; 1913 - Second slide groove; 1914 - Fourth slide groove; 192 - Movable component; 1921 - First movable component; 19211 - Mounting groove; 19212 - Sliding protrusion; 1922 - Second movable component; 19221 - Third slide groove; 1923 - Sliding component;

[0048] 200 - Components to be hoisted. Detailed Implementation

[0049] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] like Figure 1 and Figure 2 As shown, an embodiment of this application provides a lifting clamp 100. The lifting clamp 100 includes a housing 110, a first fixed shaft 120, an eccentric wheel 130, a connecting shaft 140, an operating rod 150, a second fixed shaft 160, an elastic element 170, a connecting rod 180, and a limiting mechanism 190.

[0055] See also Figure 3 and Figure 4 The housing 110 has a receiving cavity 112 with an opening 111 on one side. A hook portion 113 is provided on the side of the housing 110 near the opening 111. The hook portion 113 is used to hook the receiving lifting component 200. The opening 111 communicates with both the receiving cavity 112 and the hook portion 113. A first fixed shaft 120 is disposed on the inner wall of the housing 110. An eccentric wheel 130 is disposed on the first fixed shaft 120 and rotatably connected to it. A connecting shaft 140 is disposed on the eccentric wheel 130 and spaced apart from the first fixed shaft 120. One end of the operating lever 150 is disposed outside the housing 110, and the other end is connected to the eccentric wheel 130 via the connecting shaft 140. The second fixed shaft 160 is disposed on the inner side wall of the housing 110 and is spaced apart from the first fixed shaft 120 and the connecting shaft 140 respectively. The elastic element 170 is connected to the connecting shaft 140 and the second fixed shaft 160 respectively, and one end of the connecting rod 180 is fixedly connected to the connecting shaft 140.

[0056] CombinationFigure 5 As shown, the limiting mechanism 190 is disposed on the inner bottom wall of the housing 110, including a limiting member 191 and a movable component 192. The limiting member 191 has a limiting groove 1911, a first sliding groove 1912 and a second sliding groove 1913. The limiting groove 1911 is connected to the first sliding groove 1912 and the second sliding groove 1913 respectively. The first sliding groove 1912 is connected to the second sliding groove 1913. The movable component 192 is slidably connected to the limiting groove 1911, the first sliding groove 1912 and the second sliding groove 1913. The end of the connecting rod 180 away from the connecting shaft 140 is hinged to the movable component 192.

[0057] The lifting clamp 100 provided in the embodiments of this application is described in reference to... Figure 7 and Figure 8 When it is necessary to lift the component 200 to be lifted, the operator can turn the operating lever 150 clockwise to drive the connecting shaft 140, eccentric wheel 130 and connecting rod 180 to rotate clockwise synchronously. Under the action of the connecting rod 180, the movable component 192 is driven to slide down away from the limiting groove 1911. After the movable component 192 slides down away from the limiting groove 1911, the operator releases the operating lever 150. Under the action of the reset contraction force of the elastic element 170, the connecting shaft 140, eccentric wheel 130, operating lever 150 and connecting rod 180 can be driven to rotate automatically counterclockwise and drive the movable component 192 to slide automatically upward along the first sliding groove 1912. This allows the eccentric wheel 130 to pass through the opening 111 and press the component 200 to be lifted onto the hook part 113, effectively improving the lifting safety. In addition, during lifting, the component to be lifted 200 tends to move downward relative to the lifting clamp 100 under its own weight, so that the eccentric wheel 130 tends to rotate counterclockwise under the frictional contact between the component to be lifted 200 and the eccentric wheel 130, thereby further pressing the component to be lifted 200 and further improving the lifting safety.

[0058] See Figure 2 and Figure 6When the hoisting is completed and the hoisting part 200 needs to be removed, the operator can turn the operating lever 150 clockwise to drive the connecting shaft 140, eccentric wheel 130 and connecting rod 180 to rotate clockwise synchronously, thereby separating the eccentric wheel 130 from the hoisting part 200, so that the hoisting part 200 can be removed. Simultaneously, under the action of the connecting rod 180, the movable component 192 slides downward along the second slide groove 1913. When the movable component 192 slides downward along the second slide groove 1913 and approaches the limiting groove 1911, the operator releases the operating rod 150. Under the restoring contraction force of the elastic element 170, the connecting shaft 140, eccentric wheel 130, operating rod 150, and connecting rod 180 automatically rotate counterclockwise and drive the movable component 192 to automatically slide upward along the limiting groove 1911 to engage with the limiting groove 1911, so that the eccentric wheel 130 remains separated from the part 200 to be lifted, thereby facilitating the removal of the part 200 to be lifted. The lifting clamp 100 provided in this application can realize the installation and removal of the part 200 to be lifted by simply moving the operating rod 150. The operation is simple, the installation and removal are convenient, and it can effectively improve the safety of lifting.

[0059] For example, the component to be hoisted 200 can be a steel reinforcement frame, and the elastic component 170 can be a tension spring.

[0060] like Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, in one embodiment of this application, the movable component 192 includes a first movable member 1921, a second movable member 1922, and a sliding member 1923. The second movable member 1922 is disposed on the side of the first movable member 1921 near the limiting member 191. The second movable member 1922 has a third sliding groove 19221. One end of the sliding member 1923 is slidably connected to the limiting groove 1911, the first sliding groove 1912, and the second sliding groove 1913, and the other end is slidably connected to the third sliding groove 19221. The first movable member 1921 is slidably connected to the limiting member 191. The end of the connecting rod 180 away from the connecting shaft 140 is hinged to the first movable member 1921.

[0061] In this embodiment, by hinged one end of the connecting rod 180 away from the connecting shaft 140 to the first movable member 1921, the first movable member 1921 is slidably connected to the limiting member 191, and the second movable member 1922 is disposed on the side of the first movable member 1921 close to the limiting member 191, the connecting rod 180 can drive the first movable member 1921 and the second movable member 1922 to slide up and down synchronously relative to the limiting member 191. Meanwhile, by opening a third slide groove 19221 on the second movable member 1922, one end of the sliding member 1923 is slidably connected to the limiting groove 1911, the first slide groove 1912 and the second slide groove 1913, and the other end of the sliding member 1923 is slidably connected to the third slide groove 19221. In this way, when the connecting rod 180 drives the first movable member 1921 and the second movable member 1922 to slide up and down synchronously relative to the limiting member 191, the sliding member 1923 can slide along the third slide groove 19221, thereby enabling the sliding member 1923 to slide along the limiting groove 1911, the first slide groove 1912 and the second slide groove 1913.

[0062] Therefore, see Figure 7 and Figure 8 When it is necessary to lift the component 200 to be lifted, the operator can turn the operating lever 150 clockwise to drive the connecting shaft 140, eccentric wheel 130 and connecting rod 180 to rotate clockwise synchronously. Under the action of the connecting rod 180, the movable component 192 slides downward relative to the limiting component 191, causing the sliding component 1923 to slide downward away from the limiting groove 1911. After the sliding component 1923 slides downward away from the limiting groove 1911, the operator releases the operating lever 150. Under the action of the reset contraction force of the elastic component 170, the connecting shaft 140, eccentric wheel 130, operating lever 150 and connecting rod 180 can be driven to rotate automatically counterclockwise and drive the sliding component 1923 to slide automatically upward along the first sliding groove 1912. This allows the eccentric wheel 130 to pass through the opening 111 and press the component 200 to be lifted onto the hook part 113, effectively improving the lifting safety.

[0063] See Figure 2 and Figure 6When the hoisting is completed and the hoisting part 200 needs to be removed, the operator can turn the operating lever 150 clockwise to drive the connecting shaft 140, eccentric wheel 130 and connecting rod 180 to rotate clockwise synchronously, thereby separating the eccentric wheel 130 from the hoisting part 200, so that the hoisting part 200 can be removed. Simultaneously, under the action of the connecting rod 180, the movable component 192 slides downward relative to the limiting member 191, causing the sliding member 1923 to slide downward along the second slide groove 1913. When the sliding member 1923 slides downward along the second slide groove 1913 and approaches the limiting groove 1911, the operator releases the operating rod 150. Under the action of the reset contraction force of the elastic member 170, the connecting shaft 140, the eccentric wheel 130, the operating rod 150 and the connecting rod 180 can be driven to rotate automatically counterclockwise and drive the sliding member 1923 to slide upward along the limiting groove 1911 to lock into the limiting groove 1911, so that the eccentric wheel 130 is kept separated from the part to be lifted 200, thereby facilitating the removal of the part to be lifted 200.

[0064] like Figure 4 and Figure 5 As shown in the above embodiments of this application, the first movable member 1921 has an installation groove 19211 on the side near the limiting member 191, and the second movable member 1922 is disposed in the installation groove 19211.

[0065] In this embodiment, by opening an installation groove 19211 on the side of the first movable member 1921 near the limiting member 191, and placing the second movable member 1922 in the installation groove 19211, the second movable member 1922 can slide up and down synchronously and stably relative to the limiting member 191 along with the first movable member 1921. This allows the sliding member 1923 to slide from the limiting groove 1911 through the first sliding groove 1912 into the second sliding groove 1913 when the lifting of the part to be lifted 200 is required. When the lifting is completed and the part to be lifted 200 needs to be removed, the sliding member 1923 can slide from the second sliding groove 1913 into the limiting groove 1911.

[0066] like Figure 4 and Figure 5 As shown in the above embodiments of this application, the first movable member 1921 is provided with a sliding protrusion 19212 on the side near the limiting member 191, and the limiting member 191 is provided with a fourth sliding groove 1914 that cooperates with the sliding protrusion 19212.

[0067] In this embodiment, a sliding protrusion 19212 is provided on the side of the first movable member 1921 near the limiting member 191, and a fourth sliding groove 1914 that cooperates with the sliding protrusion 19212 is provided on the limiting member 191, so that the first movable member 1921 can slide smoothly and steadily up and down relative to the limiting member 191 under the cooperative action of the sliding protrusion 19212 and the fourth sliding groove 1914.

[0068] like Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment of this application, the box 110 has a clearance hole 114 communicating with the receiving cavity 112 on the side away from the opening 111. One end of the operating rod 150 is disposed outside the box 110, and the other end passes through the clearance hole 114 and is connected to the connecting shaft 140.

[0069] In this embodiment, by opening a clearance hole 114 communicating with the receiving cavity 112 on the side of the housing 110 away from the opening 111, one end of the operating rod 150 is placed outside the housing 110, and the other end of the operating rod 150 passes through the clearance hole 114 and is connected to the connecting shaft 140, so that the operating rod 150 is provided with space for clockwise and counterclockwise rotation under the clearance action of the clearance hole 114.

[0070] like Figure 2 and Figure 3 As shown in the above embodiments of this application, the operating lever 150 includes a first lever portion 151, a second lever portion 152, and a connecting lever portion 153. One end of each of the first lever portion 151 and the second lever portion 152 is disposed outside the housing 110, and the other end of each is disposed through the clearance hole 114 and hinged to the first fixed shaft 120. The first lever portion 151 and the second lever portion 152 are respectively located on two opposite sides of the eccentric wheel 130. The connecting shaft 140 is connected to the first lever portion 151 and the second lever portion 152 respectively, and the connecting lever portion 153 is connected to the end of the first lever portion 151 and the second lever portion 152 away from the connecting shaft 140 respectively. In this way, the balance and stability of the synchronous rotation of the eccentric wheel 130 driven by the operating lever 150 can be effectively improved.

[0071] like Figure 2 and Figure 3 As shown in the above embodiments of this application, the eccentric wheel 130 is provided with a second mounting hole 131, one end of the connecting shaft 140 is connected to the first rod portion 151, and the other end passes through the second mounting hole 131 and is connected to the second rod portion 152.

[0072] In this embodiment, by providing a second mounting hole 131 on the eccentric wheel 130, one end of the connecting shaft 140 is connected to the first rod portion 151, and the other end of the connecting shaft 140 is passed through the second mounting hole 131 and connected to the second rod portion 152. This allows the first rod portion 151 and the second rod portion 152 to be connected to the eccentric wheel 130 through the two ends of the connecting shaft 140, which helps to improve the balance and stability of the synchronous rotation of the eccentric wheel 130 driven by the operating rod 150.

[0073] like Figure 2 and Figure 3 As shown, in any of the above embodiments of this application, the eccentric wheel 130 is provided with a first mounting hole 132 that is adapted to the first fixed shaft 120, and the hole wall of the first mounting hole 132 is rotatably connected to the first fixed shaft 120.

[0074] In this embodiment, by opening a first mounting hole 132 on the eccentric wheel 130 that is adapted to the first fixed shaft 120, and the hole wall of the first mounting hole 132 is rotatably connected to the first fixed shaft 120, the eccentric wheel 130 can rotate counterclockwise or clockwise relative to the first fixed shaft 120, thereby realizing the function of pressing or releasing the lifting part 200.

[0075] like Figure 2 , Figure 3 and Figure 7 As shown, in any of the above embodiments of this application, the eccentric wheel 130 is provided with a toothed portion 133 on its circumferential wall.

[0076] In this embodiment, by providing a toothed portion 133 on the circumferential wall of the eccentric wheel 130, the friction between the eccentric wheel 130 and the part to be lifted 200 is increased under the action of the toothed portion 133, which helps to further press the part to be lifted 200, thereby further improving the lifting safety.

[0077] For example, the eccentric wheel 130 can be an eccentric gear.

[0078] like Figure 1 and Figure 2 As shown, in any of the above embodiments of this application, the housing 110 is provided with a lifting part 115, which is located at the end of the housing 110 away from the limiting mechanism 190.

[0079] In this embodiment, a lifting section 115 is provided at one end of the housing 110 away from the limiting mechanism 190, so that the lifting device can lift the lifting clamp 100 and the part to be lifted 200 as a whole and transport them to the corresponding installation position through the lifting section 115.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A lifting clamp, characterized in that include: The housing has a receiving cavity with an opening on one side. A hook is provided on the side of the housing near the opening. The hook is used to hook the receiving lifting component. The opening is connected to the receiving cavity and the hook. The first fixed shaft is disposed on the inner side wall of the housing; An eccentric wheel is disposed on the first fixed shaft and is rotatably connected to the first fixed shaft; A connecting shaft is disposed on the eccentric wheel and spaced apart from the first fixed shaft; An operating lever, one end of which is disposed outside the housing, and the other end of which is connected to the eccentric wheel via the connecting shaft; The second fixed shaft is disposed on the inner side wall of the housing and is spaced apart from the first fixed shaft and the connecting shaft, respectively. The elastic element is connected to the connecting shaft and the second fixed shaft respectively; The connecting rod has one end fixedly connected to the connecting shaft; A limiting mechanism is provided on the inner bottom wall of the housing, including a limiting member and a movable component. The limiting member has a limiting groove, a first sliding groove and a second sliding groove. The limiting groove is connected to the first sliding groove and the second sliding groove respectively. The first sliding groove is connected to the second sliding groove. The movable component is slidably connected to the limiting groove, the first sliding groove and the second sliding groove. The end of the connecting rod away from the connecting shaft is hinged to the movable component. The movable component includes a first movable member, a second movable member, and a sliding member. The second movable member is disposed on the side of the first movable member near the limiting member. The second movable member has a third sliding groove. One end of the sliding member is slidably connected to the limiting groove, the first sliding groove, and the second sliding groove, and the other end is slidably connected to the third sliding groove. The first movable member is slidably connected to the limiting member. The end of the connecting rod away from the connecting shaft is hinged to the first movable member. The box body has a clearance hole on the side away from the opening that communicates with the receiving cavity. One end of the operating rod is located outside the box body, and the other end passes through the clearance hole and is connected to the connecting shaft. The operating lever includes a first rod portion, a second rod portion, and a connecting rod portion. One end of both the first rod portion and the second rod portion is disposed outside the housing, and the other end of both passes through the clearance hole and is hinged to the first fixed shaft. The first rod portion and the second rod portion are respectively located on two opposite sides of the eccentric wheel. The connecting shaft is connected to the first rod portion and the second rod portion respectively, and the connecting rod portion is connected to the end of the first rod portion and the second rod portion away from the connecting shaft respectively.

2. The hoisting clamp of claim 1, wherein The first movable component has a mounting groove on the side near the limiting component, and the second movable component is disposed in the mounting groove.

3. The hoisting clamp of claim 1, wherein The first movable part has a sliding protrusion on the side near the limiting part, and the limiting part has a fourth sliding groove that cooperates with the sliding protrusion.

4. The hoisting clamp of claim 1, wherein The eccentric wheel has a second mounting hole. One end of the connecting shaft is connected to the first rod, and the other end passes through the second mounting hole and is connected to the second rod.

5. The hoisting clamp according to any one of claims 1 to 4, characterized in that The eccentric wheel has a first mounting hole that is adapted to the first fixed shaft, and the wall of the first mounting hole is rotatably connected to the first fixed shaft.

6. The hoisting clamp according to any one of claims 1 to 4, characterized in that A tooth-shaped part is arranged on the circumferential wall of the eccentric wheel.

7. The hoisting clamp according to any one of claims 1 to 4, characterized in that The box is provided with a lifting connecting part, and the lifting connecting part is located at one end of the box away from the limiting mechanism.

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