Hoisting mechanism

Abstract

This utility model relates to a lifting mechanism, specifically in the field of vehicle technology, and addresses the problem of improving the applicability of front floor assembly lifting devices. The lifting mechanism includes a support structure, a first hook assembly, a second hook assembly, and a third hook assembly. These three assemblies are sequentially spaced along a first direction on the support structure. The first hook assembly includes a first connecting portion and a first supporting portion. A first end of the first connecting portion is fixedly connected to the first supporting portion. A second end of the first connecting portion is movably connected to the support structure, allowing the first hook assembly to switch between a working position and a retracted position. By switching the first hook assembly between the working and retracted positions, the third hook assembly can cooperate with either the first or second hook assembly to lift front floor assemblies of different structures, thereby improving the applicability of the lifting mechanism and meeting the lifting requirements of front floor assemblies for different vehicle models.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a hoisting mechanism. Background Technology

[0002] The front floor assembly is a core load-bearing module under the body-in-white. It transmits and disperses impact forces during a vehicle collision and is a key structural component that ensures vehicle performance. During vehicle assembly, the front floor assembly is typically lifted using hoisting equipment to facilitate assembly.

[0003] In the prior art, a front floor assembly lifting device is provided, including a main frame, a drive cylinder, and a lifting rod. The connecting plate is an obtuse-angled corner seat set on the main frame. One end of the two corners of the connecting plate is hinged to the drive cylinder, and the other end is hinged to the end of the lifting rod. A clamping mechanism for holding the front floor assembly is provided at the corner of the main frame. The clamping mechanism is connected to the four corners of the main frame by bolts and nuts through mounting plates. The clamping mechanism consists of a clamping cylinder, a reference block, a clamping block, and a template. The template is fixed to the main frame with bolts. The clamping cylinder, reference block, and clamping block are all mounted and fixed on the template. After the clamping cylinder is vented, it drives the clamping block to move until the clamping block is in contact with the back of the reference surface of the front floor and applies pressure. The front floor is clamped by the action and reaction forces of the reference block and the clamping block.

[0004] However, the front floor assemblies of different car models have different structures, and the aforementioned front floor assembly lifting tools are not very applicable and cannot meet the lifting requirements of the front floor assemblies of different car models. Utility Model Content

[0005] The purpose of this invention is to provide a lifting mechanism to solve the problem of how to improve the applicability of front floor assembly lifting devices.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This application provides a hoisting mechanism for hoisting a front floor assembly. The hoisting mechanism includes a support structure, a first hook assembly, a second hook assembly, and a third hook assembly. The first hook assembly, the second hook assembly, and the third hook assembly are sequentially spaced along a first direction on the support structure. The first hook assembly includes a first connecting portion and a first supporting portion. The first end of the first connecting portion and the first supporting portion are fixedly connected. The second end of the first connecting portion is movably connected to the support structure, so that the first hook assembly can switch between a working position and a retracted position. When the first hook assembly is in the working position, the first end of the first connecting portion is located below the second end, and the first supporting portion is located on one side of the first connecting portion in the first direction, so that the first hook assembly and the third hook assembly can hoist the front floor assembly. When the first hook assembly is in the retracted position, the first end of the first connecting portion is located on one side of the second end in the first direction, and the first supporting portion is located on one side of the first connecting portion in the vertical direction, so that the second hook assembly and the third hook assembly can hoist the front floor assembly.

[0007] According to the aforementioned technical means, since the first hook assembly, the second hook assembly, and the third hook assembly are sequentially and spaced apart along the first direction on the bracket structure, and the first end of the first connecting part is fixedly connected to the first supporting part, while the second end of the first connecting part is rotatably connected to the bracket structure, the first hook assembly can switch between a working position and a storage position. Thus, when the first hook assembly is in the working position, the first supporting part is located on one side of the first connecting part in the first direction, allowing connection to the front floor assembly via the first supporting part, and enabling the front floor assembly to be hoisted via the first hook assembly and the third hook assembly. When the first hook assembly is in the storage position, the first supporting part is located on one side of the first connecting part in the vertical direction, preventing interference with the front floor assembly, and allowing the front floor assembly to be hoisted via the third hook assembly and the second hook assembly. Therefore, by switching the first hook assembly between the working and storage positions, the third hook assembly can cooperate with either the first hook assembly or the second hook assembly to hoist front floor assemblies of different structures, thereby improving the applicability of the hoisting mechanism to meet the hoisting needs of front floor assemblies for different vehicle models.

[0008] In some embodiments, the first hook assembly further includes a mounting base and a connecting shaft. The mounting base is fixedly connected to the lower side of the bracket structure, the connecting shaft is rotatably connected to the mounting base, and the second end of the first connecting portion is connected to the connecting shaft.

[0009] According to the above technical means, since the mounting base is fixedly connected to the lower side of the bracket structure, the connecting shaft is rotatably connected to the mounting base, and the second end of the first connecting part is connected to the connecting shaft, the first hook assembly can be switched between the working position and the storage position by rotating the connecting shaft relative to the fixed base, thus facilitating the switching of the first hook assembly between the working position and the storage position. Furthermore, the first connecting part is rotatably connected to the bracket structure through the connecting shaft and the mounting base. On the one hand, the first connecting part is connected to the connecting shaft, and the connecting shaft is rotatably connected to the mounting base, making the rotation of the connecting shaft stable, thereby ensuring the stability of the first connecting part during rotation; on the other hand, it avoids the first connecting part being directly connected to the bracket structure, thus avoiding interference between the first connecting part and the bracket structure during rotation, and allowing the first connecting part to rotate at a larger angle, thereby facilitating the switching of the first hook assembly between the working position and the storage position.

[0010] In some embodiments, the connecting shaft is movable relative to the mounting base along the axial direction of the connecting shaft; the mounting base is provided with a limiting groove, which is recessed along the axial direction of the connecting shaft from one side surface of the mounting base in the axial direction of the connecting shaft, and the limiting groove extends to the lower surface of the mounting base; when the first hook assembly is in the working position, at least a portion of the first connecting portion is located in the limiting groove.

[0011] According to the above-mentioned technical means, since the mounting base is provided with a limiting groove, which is recessed along the axial direction of the connecting shaft on one side surface of the mounting base, at least a portion of the first connecting part is located in the limiting groove when the first hook assembly is in the working position. In this way, the rotation of the first connecting part can be restricted by the limiting groove, and the first hook assembly can be kept in the working position, making the first hook assembly more stable in the working position and improving the stability of the lifting mechanism during operation. In addition, the lifting operator only needs to rotate the connecting shaft and move the connecting shaft along its own axial direction to switch the first hook assembly to the working position, making the operation of switching the first hook assembly to the working position simple and convenient.

[0012] In some embodiments, the connecting shaft is movable relative to the mounting base along the axial direction of the connecting shaft; the first hook assembly further includes a fixing member, which is spaced apart from the mounting base in a first direction. The fixing member includes a fixing portion and a receiving portion. The fixing portion is connected to the lower side of the bracket structure, and the receiving portion is connected to the end of the fixing portion away from the bracket structure. The receiving portion is located on the side of the fixing portion along the axial direction of the connecting shaft; when the first hook assembly is in the receiving position, the first connecting portion is located on the side of the receiving portion facing the bracket structure, so that the receiving portion supports and limits the first connecting portion.

[0013] According to the above technical means, since the fixing component and the mounting base are spaced apart in the first direction, the fixing component includes a fixing part and a receiving part. The fixing part is connected to the lower side of the support structure, and the receiving part is connected to the end of the fixing part away from the support structure. The receiving part is located on the side of the fixing part on the axial direction of the connecting shaft. In this way, by setting the fixing component, when the first hook assembly is in the receiving position, the first connecting part is supported and limited by the receiving part, and the first hook assembly is kept in the receiving position, so that the first hook assembly is more stable in the receiving position, and the stability of the hoisting mechanism during operation is improved. In addition, the hoisting operator only needs to rotate the connecting shaft and move the connecting shaft along its own axial direction to switch the first hook assembly to the receiving position. The operation of switching the first hook assembly to the receiving position is simple and convenient.

[0014] In some embodiments, the second hook assembly includes a second connecting portion and a second supporting portion. The upper end of the second connecting portion is fixedly connected to the bracket structure, and the lower end of the second connecting portion is fixedly connected to the second supporting portion. The second supporting portion is located on one side of the second connecting portion in a first direction. The side surface of the second supporting portion facing the bracket structure includes a first bearing surface and a second bearing surface. The first bearing surface is located between the second connecting portion and the second bearing surface in the vertical direction, and the height of the second bearing surface is higher than the height of the first bearing surface.

[0015] According to the aforementioned technical means, since the surface of the second support portion facing the bracket structure includes a first bearing surface and a second bearing surface, with the first bearing surface located between the second connecting portion and the second bearing surface, and the height of the second bearing surface being higher than the height of the first bearing surface in the vertical direction, the second support portion can support the front floor assembly via either the first or the second bearing surface. Therefore, when the third hook assembly and the second hook assembly are used together to hoist the front floor assembly, front floor assemblies with different structures can be hoisted, further improving the applicability of the hoisting structure.

[0016] In some embodiments, the third hook assembly includes a first hook body, a second hook body, and a support rod connected between the first hook body and the second hook body. The length direction of the support rod is perpendicular to the first direction, and the support rod is fixedly connected to the bracket structure.

[0017] According to the above technical means, since the third hook assembly includes a first hook body, a second hook body, and a support rod connected between the first hook body and the second hook body, the length direction of the support rod is perpendicular to the first direction, and the support rod is fixedly connected to the bracket structure, in this way, the third hook assembly can be connected to the front floor assembly through the first hook body and the second hook body to ensure the stability of the front floor assembly when the third hook assembly is hoisted.

[0018] In some embodiments, the first hook body includes a third connecting portion and a third supporting portion, the upper end of the third connecting portion is connected to a support rod, the lower end of the third connecting portion is fixedly connected to the third supporting portion, and the third supporting portion is located on one side of the third connecting portion in a first direction; the third hook assembly also includes an abutment member, the abutment member is fixedly connected to the support rod member, and in the vertical direction, the abutment member is located above the third supporting portion so that the front floor assembly is located between the abutment member and the third supporting portion.

[0019] According to the aforementioned technical means, since the first hook body includes a third connecting part and a third supporting part, the upper end of the third connecting part is connected to the support rod, and the lower end of the third connecting part is fixedly connected to the third supporting part. The third hook assembly also includes an abutment member, which is fixedly connected to the support rod and is located above the third supporting part in the vertical direction. In this way, when the first hook body is used to lift the front floor assembly, the front floor assembly is located between the abutment member and the third supporting part, thereby limiting the front floor assembly in the vertical direction and improving the stability of the front floor assembly during the lifting process.

[0020] In some embodiments, the lifting mechanism further includes a lifting ring connected to the support structure and / or a third hook assembly.

[0021] According to the above technical means, by connecting the lifting ring to the support structure and the third hook assembly, the lifting mechanism can be connected to the drive equipment through the lifting ring, which is simple and practical. In addition, since the lifting ring is connected to the support structure and the third hook assembly, it ensures that the lifting ring is set in multiple positions of the lifting mechanism, thereby making the connection between the lifting mechanism and the drive equipment stable, thus making the stability of the floor assembly before the lifting mechanism is good.

[0022] In some embodiments, the hoisting mechanism further includes a handle structure located above the first hook assembly and fixedly connected to the support structure.

[0023] According to the above technical means, since the hoisting mechanism also includes a handle structure, which is located above the first hook assembly and is fixedly connected to the support structure, when using the hoisting mechanism to hoist the floor assembly, the operator can hold the handle structure to control the position of the hoisting mechanism, thereby improving the ease of operation of the hoisting mechanism.

[0024] In some embodiments, the first support portion includes a main body portion and a guide portion. The main body portion is connected to the first connecting portion. When the first hook assembly is in the working position, it extends in a first direction. The guide portion is connected to the end of the main body portion away from the first connecting portion and extends obliquely in a direction gradually away from the support structure.

[0025] According to the above technical means, since the first support part includes a main body part and a guide part, the guide part is connected to the end of the main body part away from the first connecting part along the first direction, and extends obliquely in a direction gradually away from the support structure. In this way, when the first hook assembly lifts the front floor assembly, due to the inclination of the guide part, the distance between the end of the guide part away from the main body part and the support structure is greater than the distance between the main body part and the support structure. This makes it easier for the first support part to be inserted under the front floor assembly through the guide part, thereby further improving the ease of operation of the lifting mechanism in lifting the front floor assembly. Attached Figure Description

[0026] Figure 1 This application provides a schematic diagram of the structure of a hoisting mechanism for hoisting a type of front floor assembly. Figure 2 for Figure 1 A schematic diagram of the structure of the hoisting mechanism for another type of front floor assembly; Figure 3 for Figure 1 A schematic diagram of the first hook assembly of the hoisting mechanism in the working position; Figure 4 for Figure 3 A schematic diagram of the structure at the first hook assembly; Figure 5 for Figure 2 A schematic diagram of the first hook assembly of the hoisting mechanism in the stowed position; Figure 6 for Figure 5 A schematic diagram of the structure at the first hook assembly; Figure 7 for Figure 1 A schematic diagram of the structure of the second hook assembly of the hoisting mechanism; Figure 8 for Figure 1 Side view of the hoisting mechanism; Figure 9 for Figure 8 A front view structural diagram of the hoisting mechanism; Figure 10 for Figure 8 A top view of the hoisting structure.

[0027] Figure Labels A - Front floor assembly; a1 - First door sill beam; a2 - Second door sill beam; a3 - Reinforcing beam; a4 - Floor body; 100 - Lifting mechanism; 10 - Support structure; 1-First hook assembly; 11-First connecting part; 111-First connecting rod; 112-Second connecting rod; 12-First supporting part; 121-Main body part; 122-Guide part; 13-Mounting base; 131-Limiting groove; 132-First seat body; 133-Second seat body; 14-Connecting shaft; 15-Fixing component; 151-Fixing part; 152-Storage part; 153-Limiting slot; 2-Second hook assembly; 21-Second connecting part; 22-Second supporting part; 221-First bearing surface; 222-Second bearing surface; 3-Third hook assembly; 31-First hook body; 311-Third connecting part; 312-Third supporting part; 32-Second hook body; 33-Support rod; 34-Abutment part; 4- Lifting ring; 5- Handle structure. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0032] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0033] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0034] like Figures 1 to 2 As shown, the front floor assembly A of the vehicle includes a floor body a4, a first sill beam a1, a second sill beam a2, and a reinforcing beam a3. The floor body a4 is a plate-like structure. The first sill beam a1 and the second sill beam a2 are connected to the two ends of the floor body a4 in the width direction of the vehicle. The length direction of the first sill beam a1 and the second sill beam a2 is along the length direction of the vehicle. The front ends of the first sill beam a1 and the second sill beam a2 are flush with the length direction of the vehicle. (It should be noted that, for ease of description, the end of the front floor assembly A near the rear of the vehicle in the length direction is defined as the rear end, and the opposite end is defined as the front end.)

[0035] Furthermore, the reinforcing beam a3 is located between the first sill beam a1 and the second sill beam a2. The length of the reinforcing beam a3 is along the length of the vehicle and is fixedly connected to the upper surface of the floor body a4. It should be noted that due to the different structures of different types of front floor assemblies A, the lifting positions of different types of front floor assemblies A connected to the lifting mechanism 100 are different.

[0036] For example, the front floor assembly A includes a first type of front floor assembly, a second type of front floor assembly, and a third type of front floor assembly. For the first type of front floor assembly, the front ends of the first sill beam a1 and the second sill beam a2 are the lifting positions, and the rear end of the floor body a4 is also the lifting position. For the second type of front floor assembly, the floor body a4 of the second type of front floor assembly has different dimensions along the vehicle length direction compared to the first type of front floor assembly. When using the same lifting mechanism 100, the rear end of the floor body a4 is no longer suitable as a lifting position. Therefore, the upper side of the reinforcing beam a3 of the second type of front floor assembly is provided with a first snap-fit ​​hole, the front ends of the first sill beam a1 and the second sill beam a2 are the lifting positions, and the first snap-fit ​​hole provided on the reinforcing beam a3 is also the lifting position. The reinforcing beam a3 of the third-class front floor assembly has a second snap-fit ​​hole on its upper side. Compared to the second-class front floor assembly, the reinforcing beam a3 of the third-class front floor assembly has different dimensions along the vehicle length direction, resulting in a different position for the second snap-fit ​​hole on the reinforcing beam a3 compared to the first snap-fit ​​hole. Therefore, the front ends of the first sill beam a1 and the second sill beam a2 of the third-class front floor assembly are the lifting positions, and the second snap-fit ​​hole on the reinforcing beam a3 is also a lifting position.

[0037] like Figures 1 to 4 As shown, this application provides a lifting mechanism 100 for lifting the front floor assembly A of a vehicle. The lifting mechanism 100 includes a support structure 10, a first hook assembly 1, a second hook assembly 2 and a third hook assembly 3. The first hook assembly 1, the second hook assembly 2 and the third hook assembly 3 are sequentially and spaced apart on the support structure 10 along a first direction.

[0038] For example, the support structure 10 can be a plate structure, a block structure or a frame structure, as long as the first hook assembly 1, the second hook assembly 2 and the third hook assembly 3 can be arranged at intervals in the first direction.

[0039] In some examples, the support structure 10 is a rectangular frame structure with its length direction along a first direction, and the first hook assembly 1, the second hook assembly 2 and the third hook assembly 3 are spaced apart on the support structure 10 along its length direction.

[0040] Furthermore, the first hook assembly 1 includes a first connecting part 11 and a first supporting part 12. The first end of the first connecting part 11 is fixedly connected to the first supporting part 12. The second end of the first connecting part 11 is rotatably connected to the bracket structure 10 so that the first hook assembly 1 can switch between the working position and the storage position.

[0041] For example, the first connecting part 11 can be a plate-shaped structure, a rod-shaped structure, or an irregular structure, as long as one end of the first connecting part 11 is connected to the first supporting part 12 and the other end is connected to the bracket structure 10. This application embodiment does not impose any restrictions on this.

[0042] Furthermore, when the first hook assembly 1 is in the working position, the first end of the first connecting portion 11 is located below the second end, and the first supporting portion 12 is located on one side of the first connecting portion 11 in the first direction, so that the first hook assembly 1 and the third hook assembly 3 are hoisted before the floor assembly A is installed; when the first hook assembly 1 is in the storage position, the first end of the first connecting portion 11 is located on one side of the second end in the first direction, and the first supporting portion 12 is located on one side of the first connecting portion 11 in the vertical direction, so that the first hook assembly 1 and the second hook assembly 2 are hoisted before the floor assembly A is installed.

[0043] When the first type of front floor assembly is hoisted, the first hook assembly 1 is in the working position, the first support part 12 is connected to the rear end of the floor body a4, and the third hook assembly 3 is connected to the front end of the first sill beam a1 and the second sill beam a2, so that the first hook assembly 1 and the third hook assembly 3 can hoist the first type of front floor assembly.

[0044] When hoisting the aforementioned Class II or Class III front floor assembly, the second hook assembly 2 is connected to the first or second snap-fit ​​hole provided on the reinforcing beam a3, and the third hook assembly 3 is connected to the front end of the first sill beam a1 and the second sill beam a2, so that the second hook assembly 2 and the third hook assembly 3 can hoist the Class II or Class III front floor assembly.

[0045] Since the first hook assembly 1, the second hook assembly 2, and the third hook assembly 3 are sequentially spaced along the first direction on the support structure 10, and the first end of the first connecting part 11 is fixedly connected to the first supporting part 12, and the second end of the first connecting part 11 is rotatably connected to the support structure 10, the first hook assembly 1 can switch between a working position and a storage position. Thus, when the first hook assembly 1 is in the working position, the first supporting part 12 is located on one side of the first connecting part 11 in the first direction, allowing connection to the front floor assembly A, and enabling the front floor assembly A to be hoisted via the first hook assembly 1 and the third hook assembly 3; when the first hook assembly 1 is in the storage position, the first supporting part 12 is located on one side of the first connecting part 11 in the vertical direction, preventing interference with the front floor assembly A, and allowing the front floor assembly A to be hoisted via the third hook assembly 3 and the second hook assembly 2. Therefore, by switching between the working position and the storage position of the first hook assembly 1, the third hook assembly 3 can cooperate with the first hook assembly 1 or the second hook assembly 2 respectively, thereby hoisting the front floor assembly A with different structures, so that the hoisting mechanism 100 has good applicability and can meet the hoisting requirements of the front floor assembly A of different models.

[0046] like Figure 3 and Figure 4 As shown, in some embodiments, the first hook assembly 1 further includes a mounting base 13 and a connecting shaft 14. The mounting base 13 is fixedly connected to the lower side of the bracket structure 10, and the connecting shaft 14 is rotatably connected to the mounting base 13. The second end of the first connecting part 11 is connected to the connecting shaft 14.

[0047] For example, the mounting base 13 can be a plate-like structure, a block-like structure, or an irregularly shaped structure, as long as it can be rotatably connected to the connecting shaft 14. As another example, the mounting base 13 and the bracket structure 10 can be connected by bolts, riveting, or welding; this embodiment does not limit this.

[0048] In some examples, the mounting base 13 includes a first base 132 and a second base 133, which are spaced apart along a direction perpendicular to the first direction. The tops of the first base 132 and the second base 133 are fixedly connected to the bracket structure 10 by bolts. A connecting shaft 14 passes through the mounting holes on the first base 132 and the second base 133 and is rotatably connected to the first base 132 and the second base 133.

[0049] Since the mounting base 13 is fixedly connected to the lower side of the bracket structure 10, and the connecting shaft 14 is rotatably connected to the mounting base 13, and the second end of the first connecting part 11 is connected to the connecting shaft 14, the first hook assembly 1 can be switched between the working position and the storage position by rotating the connecting shaft 14 relative to the fixed base, thus facilitating the switching of the first hook assembly 1 between the working position and the storage position. Furthermore, the first connecting part 11 is rotatably connected to the bracket structure 10 through the connecting shaft 14 and the mounting base 13. On the one hand, the first connecting part 11 is connected to the connecting shaft 14, and the connecting shaft 14 is rotatably connected to the mounting base 13, making the rotation of the connecting shaft 14 stable, thereby ensuring the stability of the first connecting part 11 during rotation; on the other hand, it avoids the first connecting part 11 being directly connected to the bracket structure 10, thus avoiding interference between the first connecting part 11 and the bracket structure 10 during rotation, thereby allowing the first connecting part 11 to rotate at a larger angle, thus facilitating the switching of the first hook assembly 1 between the working position and the storage position.

[0050] In some other embodiments, the second end of the first connecting part 11 may also be rotatably connected to the bracket structure 10 via a hinge or the like.

[0051] like Figure 3 and Figure 4As shown, in some embodiments, the connecting shaft 14 is movable relative to the mounting base 13 along the axial direction of the connecting shaft 14; the mounting base 13 is provided with a limiting groove 131, which is recessed along the axial direction of the connecting shaft 14 on one side surface of the mounting base 13, and extends to the lower surface of the mounting base 13; when the first hook assembly 1 is in the working position, at least a portion of the first connecting portion 11 is located in the limiting groove 131.

[0052] For example, the mounting base 13 is provided with a mounting hole, and the connecting shaft 14 passes through the mounting hole so that the connecting shaft 14 can move relative to the mounting base 13 along the axial direction of the connecting shaft 14, and at the same time the connecting shaft 14 can rotate within the mounting hole.

[0053] In some examples, the first connecting part 11 includes a first connecting rod 111 and a second connecting rod 112 arranged in parallel. The first connecting rod 111 and the second connecting rod 112 are spaced apart along the axial direction of the connecting shaft 14. The first connecting rod 111 and the second connecting rod 112 are perpendicular to the connecting shaft 14. The first end of the first connecting rod 111 and the second connecting rod 112 are connected to the first supporting part 12, and the second end is connected to the connecting shaft 14.

[0054] In some examples, the mounting base 13 includes a first base 132 and a second base 133, with the first base 132 and the second base 133 respectively provided with limiting grooves 131. When the first hook assembly 1 is in the working position, the upper part of the first connecting rod 111 is located in the limiting groove 131 of the first base 132, and the upper part of the second connecting rod 112 is located in the limiting groove 131 of the second base 133.

[0055] It should be noted that during the process of switching the first hook assembly 1 from the storage position to the working position, the first connecting part 11 is first rotated so that the first connecting part 11 rotates around the axis of the connecting shaft 14. When the first connecting part 11 rotates to correspond with the limiting groove 131, the connecting shaft 14 is then moved relative to the mounting base 13 along the axial direction of the connecting shaft 14, so that at least a part of the first connecting part 11 is located in the limiting groove 131, thereby putting the first hook assembly 1 into the working position.

[0056] Because the mounting base 13 is provided with a limiting groove 131, which is recessed along the axial direction of the connecting shaft 14 on one side surface of the mounting base 13, at least a portion of the first connecting part 11 is located in the limiting groove 131 when the first hook assembly 1 is in the working position. In this way, the rotation of the first connecting part 11 can be restricted by the limiting groove 131, and the first hook assembly 1 can be kept in the working position, making the first hook assembly 1 more stable in the working position and improving the stability of the lifting mechanism 100 during operation. In addition, the lifting operator only needs to rotate the connecting shaft 14 and move the connecting shaft 14 along its own axial direction to switch the first hook assembly 1 to the working position, making the operation of switching the first hook assembly 1 to the working position simple and convenient.

[0057] In some other embodiments, the connecting shaft 14 is movable relative to the mounting base 13 along the axial direction of the connecting shaft 14. The mounting base 13 is provided with a limiting hole. The first connecting part 11 is provided with a pin on the side facing the mounting base 13. When the first hook assembly 1 is in the working position, the pin of the first connecting part 11 is inserted into the limiting hole to restrict the rotation of the first connecting part 11, thereby keeping the first hook assembly 1 in the working position.

[0058] like Figure 5 and Figure 6 As shown, in some embodiments, the first hook assembly 1 further includes a fixing member 15, which is spaced apart from the mounting base 13 in a first direction. The fixing member 15 includes a fixing part 151 and a receiving part 152. The fixing part 151 is connected to the lower side of the bracket structure 10, and the receiving part 152 is connected to the end of the fixing part 151 away from the bracket structure 10. The receiving part 152 is located on the side of the fixing part 151 in the axial direction of the connecting shaft 14. When the first hook assembly 1 is in the receiving position, the first connecting part 11 is located on the side of the receiving part 152 facing the bracket structure 10, so that the receiving part 152 supports and limits the first connecting part 11.

[0059] For example, the fixing part 151 can be a plate-like structure, a block-like structure or a rod-like structure, and the embodiments of this application do not limit this.

[0060] For example, the storage part 152 can be a plate-like structure, a block-like structure, or a rod-like structure, as long as the storage part 152 can support and limit the first connecting part 11.

[0061] For example, the connection method between the fixing part 151 and the storage part 152 can be welding, riveting, bolting, integral structure, etc., and the embodiments of this application are not limited here.

[0062] In some examples, the fixing part 151 and the storage part 152 are plate-shaped structures, and the fixing part 151 and the storage part 152 are integral structures, for example, made by integral molding process, stamping process, bending process, etc. The storage part 152 is provided with a limiting groove 153, which is recessed from the side of the storage part 152 facing the support structure 10 to the direction away from the support structure 10, so as to support and limit the first connecting part 11 through the limiting groove 153.

[0063] It should be noted that during the process of switching the first hook assembly 1 from the working position to the storage position, the connecting shaft 14 is first moved relative to the mounting base 13 along the axial direction of the connecting shaft 14, so that the first connecting part 11 is disengaged from the limiting groove 131; then the first connecting part 11 is rotated, so that the first connecting part 11 rotates along the axial direction of the connecting shaft 14; finally, the connecting shaft 14 is moved along its own axial direction, and the moving direction is towards the fixing member 15, so that the first connecting part 11 is located on the side of the storage part 152 facing the bracket structure 10, so that the storage part 152 supports and limits the first connecting part 11, thereby so that the first hook assembly 1 is in the storage position.

[0064] Since the fixing member 15 and the mounting base 13 are spaced apart in the first direction, the fixing member 15 includes a fixing part 151 and a storage part 152. The fixing part 151 is connected to the lower side of the bracket structure 10, and the storage part 152 is connected to the end of the fixing part 151 away from the bracket structure 10. The storage part 152 is located on the side of the fixing part 151 on the axial direction of the connecting shaft 14. In this way, by setting the fixing member 15, when the first hook assembly 1 is in the storage position, the first connecting part 11 is supported and limited by the storage part 152, and the first hook assembly 1 is kept in the storage position, so that the first hook assembly 1 is more stable in the storage position and the stability of the hoisting mechanism 100 during operation is improved. In addition, the hoisting operator only needs to rotate the connecting shaft 14 and move the connecting shaft 14 along its own axial direction to switch the first hook assembly 1 to the storage position. The operation of switching the first hook assembly 1 to the storage position is simple and convenient.

[0065] like Figure 7 and Figure 8 As shown, the second hook assembly 2 includes a second connecting part 21 and a second supporting part 22. The upper end of the second connecting part 21 is fixedly connected to the bracket structure 10, and the lower end of the second connecting part 21 is fixedly connected to the second supporting part 22. The second supporting part 22 is located on one side of the second connecting part 21 in the first direction. The surface of the second supporting part 22 facing the bracket structure 10 includes a first bearing surface 221 and a second bearing surface 222. The first bearing surface 221 is located between the second connecting part 21 and the second bearing surface 222. In the vertical direction, the height of the second bearing surface 222 is higher than the height of the first bearing surface 221.

[0066] For example, the second connecting part 21 can be a plate-like structure, a block-like structure, or a rod-like structure; for another example, the second supporting part 22 can be a plate-like structure, a block-like structure, or a rod-like structure, but the embodiments of this application do not limit this.

[0067] For example, the second connecting part 21 and the second supporting part 22 can be bolted, riveted or welded, and this application embodiment does not limit this.

[0068] In some examples, the second connecting portion 21 and the second supporting portion 22 are plate-like structures, and the second connecting portion 21 and the second supporting portion 22 are integral structures, for example, manufactured by integral molding, stamping, bending, etc. Furthermore, the middle part of the second supporting portion 22 is a bent structure, and the surface of the second supporting portion 22 facing the bracket structure 10 forms a first bearing surface 221 and a second bearing surface 222.

[0069] When the second type of front floor assembly is hoisted, the second support part 22 is inserted into the first snap-fit ​​hole of the reinforcing beam a3, and the first bearing surface 221 of the second support part 22 contacts the reinforcing beam a3, providing an upward pulling force to the reinforcing beam a3 through the first bearing surface 221. In addition, the third hook assembly 3 connects the front ends of the first sill beam a1 and the second sill beam a2, thereby hoisting the second type of front floor assembly through the second hook assembly 2 and the third hook assembly 3.

[0070] When the aforementioned third type of front floor assembly is hoisted, the second support part 22 is inserted into the second snap-fit ​​hole of the reinforcing beam a3, and the second bearing surface 222 of the second support part 22 contacts the reinforcing beam a3, providing an upward pulling force to the reinforcing beam a3 through the second bearing surface 222. In addition, the third hook assembly 3 connects the front ends of the first sill beam a1 and the second sill beam a2, thereby hoisting the third type of front floor assembly through the second hook assembly 2 and the third hook assembly 3.

[0071] Since the surface of the second support portion 22 facing the bracket structure 10 includes a first bearing surface 221 and a second bearing surface 222, with the first bearing surface 221 located between the second connecting portion 21 and the second bearing surface 222, and the height of the second bearing surface 222 being higher than the height of the first bearing surface 221 in the vertical direction, the second support portion 22 can support the front floor assembly A through either the first bearing surface 221 or the second bearing surface 222. Therefore, when the third hook assembly 3 and the second hook assembly 2 are used together to hoist the front floor assembly A, front floor assemblies A with different structures can be hoisted, further improving the applicability of the hoisting structure.

[0072] like Figure 3 and Figure 8As shown, in some embodiments, the third hook assembly 3 includes a first hook body 31, a second hook body 32, and a support rod 33 connected between the first hook body 31 and the second hook body 32. The length direction of the support rod 33 is perpendicular to the first direction, and the support rod 33 is fixedly connected to the bracket structure 10.

[0073] For example, the support rod 33 and the bracket structure 10 can be connected by bolts, riveting or welding, but this application embodiment does not limit this.

[0074] In some examples, the first hook body 31 and the second hook body 32 are located at the ends of the support rod 33, and the support rod 33 is fixedly connected to the bracket structure 10 at the middle position along its own length direction.

[0075] When the hoisting mechanism 100 hoists the front floor assembly A, the first hook body 31 is connected to the front end of the first sill beam a1, and the second hook body 32 is connected to the front end of the second sill beam a2, so that the third hook assembly 3 is connected to the front end of the first sill beam a1 and the second sill beam a2.

[0076] Since the third hook assembly 3 includes a first hook body 31, a second hook body 32, and a support rod 33 connected between the first hook body 31 and the second hook body 32, the length direction of the support rod 33 is perpendicular to the first direction, and the support rod 33 is fixedly connected to the bracket structure 10, the third hook assembly 3 can be connected to the front floor assembly A through the first hook body 31 and the second hook body 32, ensuring the stability of the third hook assembly 3 when hoisting the front floor assembly A.

[0077] In some other embodiments, the third hook assembly 3 includes a first chain, a second chain, a third hook body, and a fourth hook body. One end of the first chain is connected to the support structure 10, and the other end is connected to the third hook body. One end of the second chain is connected to the support structure 10, and the other end is connected to the fourth hook body. The third hook body is adapted to be connected to the front end of the first sill beam a1, and the fourth hook body is adapted to be connected to the front end of the second sill beam a2.

[0078] like Figure 3 and Figure 8 As shown, the first hook body 31 includes a third connecting part 311 and a third supporting part 312. The upper end of the third connecting part 311 is connected to the support rod 33, and the lower end of the third connecting part 311 is fixedly connected to the third supporting part 312. The third supporting part 312 is located on one side of the third connecting part 311 in the first direction.

[0079] For example, the third connecting part 311 can be a plate-like structure, a block-like structure, or a rod-like structure; for another example, the third supporting part 312 can be a plate-like structure, a block-like structure, or a rod-like structure, and the embodiments of this application do not limit this.

[0080] In some examples, the third connecting part 311 and the third supporting part 312 are rod-shaped structures, and the third connecting part 311 and the third supporting part 312 are integral structures, for example, made by integral molding process, stamping process, bending process, etc.

[0081] In addition, the third hook assembly 3 also includes an abutment 34, which is fixedly connected to the support rod 33. In the vertical direction, the abutment 34 is located above the third support portion 312 so that the front floor assembly A is located between the abutment 34 and the third support portion 312.

[0082] For example, the abutment 34 can be a plate-like structure, a block-like structure, or a rod-like structure. For another example, the abutment 34 and the support rod 33 can be connected by bolts, riveting, or welding. This application does not limit this.

[0083] In some examples, the abutment 34 and the third support 312 are spaced apart along the first direction, so that the third support 312 can support the front floor assembly A from the lower side of the front floor assembly A, and the abutment 34 can press the front floor assembly A from the upper side of the front floor assembly A.

[0084] In some examples, the abutment 34 includes a connecting rod and an abutment rod, the upper end of the connecting rod is fixedly connected to the support rod 33, the lower end of the connecting rod is fixedly connected to the abutment rod, the length direction of the abutment rod is along the first direction, and in the vertical direction, the lower surface of the abutment rod is higher than the upper surface of the third support 312.

[0085] Since the first hook body 31 includes a third connecting part 311 and a third supporting part 312, the upper end of the third connecting part 311 is connected to the support rod 33, and the lower end of the third connecting part 311 is fixedly connected to the third supporting part 312. The third hook assembly 3 also includes an abutment 34, which is fixedly connected to the support rod 33 and is located above the third supporting part 312 in the vertical direction. In this way, when the first hook body 31 is used to lift the front floor assembly A, the front floor assembly A is located between the abutment 34 and the third supporting part 312, thereby limiting the front floor assembly A in the vertical direction and improving the stability of the front floor assembly A during the lifting process.

[0086] It should be noted that the structure of the second hook body 32 can be referred to the first hook body 31 described above, and will not be repeated here.

[0087] like Figure 9 and Figure 10 As shown, in some embodiments, the lifting mechanism 100 further includes a lifting ring 4, which is connected to the support structure 10 and / or the third hook assembly 3.

[0088] For example, the lifting ring 4 is fixedly connected to the support structure 10; or, the lifting ring 4 is fixedly connected to the third hook assembly 3; or, there are multiple lifting rings 4, some of which are fixedly connected to the support structure 10, and other parts are fixedly connected to the third hook assembly 3.

[0089] In some examples, the lifting ring 4 is provided with a plurality of first lifting rings 4 and a plurality of second lifting rings 4. The plurality of first lifting rings 4 are spaced apart along the length direction of the support rod 33 and are fixedly connected to the support rod 33. In addition, the plurality of second lifting rings 4 are spaced apart perpendicular to the first direction and are fixedly connected to the bracket structure 10.

[0090] It should be noted that the lifting ring 4 can be connected to the drive equipment of the vehicle production line, thereby enabling the lifting mechanism 100 to lift the front floor assembly A under the drive of the drive equipment. For example, the drive equipment can be a pneumatic hoist.

[0091] In this embodiment, the lifting ring 4 is connected to the support structure 10 and the third hook assembly 3, so that the lifting mechanism 100 can be connected to the drive device through the lifting ring 4. The structure is simple and practical. In addition, since the lifting ring 4 is connected to the support structure 10 and the third hook assembly 3, the lifting ring 4 is set in multiple positions of the lifting mechanism 100, thereby making the connection between the lifting mechanism 100 and the drive device stable, and thus making the stability of the floor assembly A before the lifting mechanism 100 is lifted better.

[0092] like Figure 9 As shown, in some embodiments, the hoisting mechanism 100 further includes a handle structure 5, which is located above the first hook assembly 1 and is fixedly connected to the bracket structure 10.

[0093] For example, the handle structure 5 can be a rod-shaped structure, a block-shaped structure, or an irregular structure; this application does not limit it.

[0094] In some examples, the handle structure 5 includes a connecting arm and a gripping arm, both of which are rod-shaped structures. One end of the connecting arm is connected to the gripping arm, and the length directions of the connecting arm and the gripping arm form an angle. The connecting arm is fixedly connected to the support structure 10, and the gripping arm is adapted for the operator to grip. Further, the handle structure 5 includes two handle structures 5 located on either side of the first clamping assembly along the axial direction of the support rod 33.

[0095] Since the hoisting mechanism 100 also includes a handle structure 5, which is located above the first hook assembly 1 and is fixedly connected to the bracket structure 10, the operator can hold the handle structure 5 to control the position of the hoisting mechanism 100 when hoisting the floor assembly A, thereby improving the ease of operation of the hoisting mechanism 100.

[0096] like Figure 4 and Figure 8 As shown, the first support portion 12 includes a main body portion 121 and a guide portion 122. The main body portion 121 is connected to the first connecting portion 11. When the first hook assembly 1 is in the working position, along the first direction, the guide portion 122 is connected to the end of the main body portion 121 away from the first connecting portion 11 and extends obliquely in a direction gradually away from the support structure 10.

[0097] For example, the main body 121 can be a plate-like structure, a rod-like structure, or a block-like structure; and for another example, the guide 122 can be a plate-like structure, a rod-like structure, or a block-like structure. The embodiments of this application do not limit this.

[0098] In some examples, the main body 121 is a rod-shaped structure, and the guide part 122 is a rod-shaped structure. One end of the main body 121 is fixedly connected to the first connecting part 11, and the other end is fixedly connected to the guide part 122. Along the first direction, the guide part 122 extends obliquely away from the support structure 10. Further, the main body 121 includes two parts, and the first connecting part 11 includes a first connecting rod 111 and a second connecting rod 112 arranged in parallel. The two main bodies 121 are fixedly connected to the first connecting rod 111 and the second connecting rod 112, respectively.

[0099] Since the first support portion 12 includes a main body portion 121 and a guide portion 122, the guide portion 122 is connected to the end of the main body portion 121 away from the first connecting portion 11 along the first direction, and extends obliquely in a direction gradually away from the support structure 10. In this way, when the first hook assembly 1 hoists the front floor assembly, due to the inclination of the guide portion 122, the distance between the end of the guide portion 122 away from the main body portion 121 and the support structure 10 is greater than the distance between the main body portion 121 and the support structure 10. This makes it easier for the first support portion 12 to be inserted under the front floor assembly A through the guide portion 122, thereby further improving the ease of operation of the hoisting mechanism 100 in hoisting the front floor assembly A.

[0100] Furthermore, it should be noted that the specific structure of the third support part 312 can be referred to the structure of the first support part 12 described above, and this application will not elaborate on it further.

[0101] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0102] The application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the application to the described embodiments. Furthermore, those skilled in the art will understand that the application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application.

Claims

1. A hoisting mechanism, characterized in that, The lifting mechanism is used for hoisting the front floor assembly. The hoisting mechanism includes a support structure (10), a first hook assembly (1), a second hook assembly (2) and a third hook assembly (3). The first hook assembly (1), the second hook assembly (2) and the third hook assembly (3) are arranged at intervals along a first direction on the support structure (10). The first hook assembly (1) includes a first connecting part (11) and a first supporting part (12). The first end of the first connecting part (11) and the first supporting part (12) are fixedly connected. The second end of the first connecting part (11) is movably connected to the bracket structure (10) so that the first hook assembly (1) can switch between a working position and a storage position. When the first hook assembly (1) is in the working position, the first end of the first connecting part (11) is located below the second end, and the first supporting part (12) is located on one side of the first connecting part (11) in the first direction, so that the first hook assembly (1) and the third hook assembly (3) can suspend the front floor assembly. When the first hook assembly (1) is in the storage position, the first end of the first connecting part (11) is located on one side of the second end in the first direction, and the first supporting part (12) is located on one side of the first connecting part (11) in the vertical direction, so that the second hook assembly (2) and the third hook assembly (3) can suspend the front floor assembly.

2. The hoisting mechanism according to claim 1, characterized in that, The first hook assembly (1) further includes a mounting base (13) and a connecting shaft (14). The mounting base (13) is fixedly connected to the lower side of the bracket structure (10), and the connecting shaft (14) is rotatably connected to the mounting base (13). The second end of the first connecting part (11) is connected to the connecting shaft (14).

3. The hoisting mechanism according to claim 2, characterized in that, Along the axial direction of the connecting shaft (14), the connecting shaft (14) is movable relative to the mounting base (13); The mounting base (13) is provided with a limiting groove (131), which is recessed along the axial direction of the connecting shaft (14) on one side surface of the mounting base (13) in the axial direction, and the limiting groove (131) extends through to the lower surface of the mounting base (13). When the first hook assembly (1) is in the working position, at least a portion of the first connecting part (11) is located in the limiting groove (131).

4. The hoisting mechanism according to claim 2, characterized in that, Along the axial direction of the connecting shaft (14), the connecting shaft (14) is movable relative to the mounting base (13); The first hook assembly (1) further includes a fixing member (15), which is spaced apart from the mounting base (13) in the first direction. The fixing member (15) includes a fixing part (151) and a storage part (152). The fixing part (151) is connected to the lower side of the bracket structure (10), and the storage part (152) is connected to the end of the fixing part (151) away from the bracket structure (10). The storage part (152) is located on one side of the fixing part (151) in the axial direction of the connecting shaft (14). When the first hook assembly (1) is in the storage position, the first connecting part (11) is located on the side of the storage part (152) facing the bracket structure (10), so that the storage part (152) supports and limits the first connecting part (11).

5. The hoisting mechanism according to any one of claims 1-4, characterized in that, The second hook assembly (2) includes a second connecting part (21) and a second supporting part (22). The upper end of the second connecting part (21) is fixedly connected to the bracket structure (10), and the lower end of the second connecting part (21) is fixedly connected to the second supporting part (22). The second supporting part (22) is located on one side of the second connecting part (21) in the first direction. The second support portion (22) has a first bearing surface (221) and a second bearing surface (222) on one side of the support structure (10). The first bearing surface (221) is located between the second connecting portion (21) and the second bearing surface (222). In the vertical direction, the height of the second bearing surface (222) is higher than the height of the first bearing surface (221).

6. The hoisting mechanism according to any one of claims 1-4, characterized in that, The third hook assembly (3) includes a first hook body (31), a second hook body (32), and a support rod (33) connected between the first hook body (31) and the second hook body (32). The length direction of the support rod (33) is perpendicular to the first direction, and the support rod (33) is fixedly connected to the bracket structure (10).

7. The hoisting mechanism according to claim 6, characterized in that, The first hook body (31) includes a third connecting part (311) and a third supporting part (312). The upper end of the third connecting part (311) is connected to the support rod (33), and the lower end of the third connecting part (311) is fixedly connected to the third supporting part (312). The third supporting part (312) is located on one side of the third connecting part (311) in the first direction. The third hook assembly (3) further includes an abutment (34) which is fixedly connected to the support rod (33). In the vertical direction, the abutment (34) is located above the third support portion (312) so that the front floor assembly is located between the abutment (34) and the third support portion (312).

8. The hoisting mechanism according to claim 6, characterized in that, It also includes a lifting ring (4) connected to the support structure (10) and / or the third hook assembly (3).

9. The hoisting mechanism according to claim 1, characterized in that, It also includes a handle structure (5), which is located above the first hook assembly (1) and is fixedly connected to the bracket structure (10).

10. The hoisting mechanism according to claim 1, characterized in that, The first support portion (12) includes a main body portion (121) and a guide portion (122). The main body portion (121) is connected to the first connecting portion (11). When the first hook assembly (1) is in the working position, along the first direction, the guide portion (122) is connected to the end of the main body portion (121) away from the first connecting portion (11) and extends obliquely in a direction gradually away from the support structure (10).

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