Gravity self-locking lifting appliance for traction seat
By designing an adjustable double-arm crane with gravity self-locking attachment, the problems of complex operation, poor stability, and insufficient versatility in the lifting process of tractor parts have been solved, achieving simple, safe, and efficient lifting operations.
Patent Information
- Application Number
- CN202520316938.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-25
AI Technical Summary
In existing technologies, the hoisting process of tractor parts is complex, unstable, and lacks versatility, leading to safety hazards and low efficiency.
Design a gravity self-locking lifting device for traction seats, which adopts an adjustable double-arm hanger. The main lifting beam is divided into upper and lower hinge structures. The hook is connected by a pin shaft. The boom can be automatically adjusted to achieve self-locking and prevent falling off, and is suitable for traction seats of different specifications.
It improves the ease of operation and safety of hoisting with the traction seat, reduces the frequency of changing lifting tools, and enhances production efficiency and safety.
Smart Images
Figure CN223722559U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile manufacturing, and specifically relates to a gravity self-locking lifting appliance for a towing seat. BACKGROUND
[0002] The towing vehicle is the core strength of long-distance logistics transportation, and is also on the rise in the new energy field. The supporting towing seat parts of the towing vehicle have large production demand. The product structure is a welding piece of a steel plate stamping part and a machined plate part, the weight is 125KG, the outer dimension is 920*810*150mm, and in the workpiece hoisting and transferring process in the welding process, due to large production, there is no special lifting appliance, and only the traditional double-hook lifting appliance can be used for hoisting. This way has the following problems:
[0003] 1. Complex operation: when hoisting the workpiece, one hand of the personnel hoists the part, and the other hand needs to operate the control handle. The workpiece shape is large, the hand cannot reach, the operation is difficult, time and labor are consumed, and there is a safety hazard.
[0004] 2. Poor stability: when hoisting the towing seat and other parts, the center of gravity of the shell is easy to deviate, causing the parts to be damaged or the personnel to be injured, and other safety accidents.
[0005] 3. Poor universality: the existing lifting appliance cannot adapt to the size of the ordinary type, reinforced type and lightweight type towing seat, and the lifting appliance needs to be frequently replaced, the hoisting operation auxiliary time is long, and the efficiency is low. INVENTION CONTENTS
[0006] In view of the defects in the prior art, the purpose of the utility model is to provide a gravity self-locking lifting appliance for a towing seat, which is stable in structure and can adapt to towing seats of different specifications, and is simple and convenient to operate, and can improve production safety and efficiency.
[0007] To achieve the above purpose, the utility model adopts the technical scheme: a gravity self-locking lifting appliance for a towing seat, two opposite hinge seats are arranged on the towing seat, and hinge holes are arranged on the hinge seats, the gravity self-locking lifting appliance comprises an upper beam, a lower beam and two lifting hooks, bottom seats are arranged at the top of the lower beam, first pins are arranged on the bottom seats, a handle is arranged on the front side of the lower beam, the upper beam is arranged above the lower beam and between the two bottom seats, a lifting ring is arranged on the upper beam, waist-shaped holes are arranged at the two ends of the upper beam, second pins are slidably arranged in the waist-shaped holes, the upper ends of the lifting hooks are hinged to the corresponding first pins and second pins, and the lower ends of the lifting hooks are used for hooking the hinge holes of the towing seat.
[0008] Further improvement lies in that the handle is in U-shaped structure, and the free end of the handle extends from the front side of the towing seat.
[0009] Further improvement lies in that the two ends of the lower beam are respectively provided with plugs.
[0010] Further improvement lies in that the base comprises a bottom plate fixedly installed on the lower beam, and two lug plates are oppositely arranged on the bottom plate, two ends of the first pin shaft are connected with the two lug plates respectively, and the lifting hook is located between the two lug plates and is hinged with the first pin shaft.
[0011] Further improvement lies in that one lifting ring is arranged on the middle part of the top surface of the upper beam.
[0012] Further improvement lies in that the two ends of the upper beam are respectively provided with open grooves matched with the lifting hook.
[0013] Further improvement lies in that the lifting hook comprises a connecting arm, an inner side end of the connecting arm is provided with a first connecting hole matched with the second pin shaft, a middle part of the connecting arm is provided with a second connecting hole matched with the first pin shaft, an outer side end of the connecting arm is downwardly and obliquely bent to form a lifting arm, and a lower end of the lifting arm is provided with a hooking part.
[0014] Further improvement lies in that the included angle between the connecting arm and the lifting arm is 120°.
[0015] Further improvement lies in that the hinge seat of the traction base comprises two oppositely arranged hinge plates, and hinge holes are arranged on the hinge plates; and the lifting hook is hung on the hinge hole of the inner hinge plate.
[0016] Further improvement lies in that the length of the lower beam is less than the interval between the two hinge seats.
[0017] The beneficial effects of the present application are as follows:
[0018] 1. In the present application, the adjustable double-arm lifting frame is adopted, the main body lifting beam is divided into upper and lower hinge structures, and the two side lifting arms are connected through pin shafts to realize the opening and folding functions.
[0019] 2. In the present application, the lifting hook is designed according to the structure characteristics of the parts, when the lifting arm is lowered, the lifting arm is opened through the weight of the upper lifting arm after being placed on the parts, and the workpiece is unloaded. When lifting, the hinge structure of the lifting hook locks the workpiece and can be self-locked to prevent falling off.
[0020] 3. In the present application, the upper beam is designed with a waist-shaped hole, the lifting arm can automatically adjust the distance between the lifting hooks, and three varieties including a common type, a lightweight type and a reinforced type are included, so that the lifting device does not need to be replaced when the workpiece is replaced. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The working state of the gravity self-locking lifting device for the traction seat in the embodiment of the present application is shown Figure 1 ;
[0022] Figure 2The working state diagram of the gravity self-locking lifting appliance in the embodiment of the utility model is shown in the figure Figure 2 ;
[0023] Figure 3 The perspective view of the gravity self-locking lifting appliance in the embodiment of the utility model is shown in the figure
[0024] Figure 4 The perspective view of the lower beam in the embodiment of the utility model is shown in the figure
[0025] Figure 5 The perspective view of the base in the embodiment of the utility model is shown in the figure
[0026] Figure 6 The perspective view of the upper beam in the embodiment of the utility model is shown in the figure
[0027] Figure 7 The perspective view of the lifting hook in the embodiment of the utility model is shown in the figure
[0028] Figure 8 The state diagram of the lifting hook of the gravity self-locking lifting appliance in the embodiment of the utility model when the lifting hook is opened is shown in the figure
[0029] Figure 9 The left view of Figure 8 is shown in the figure
[0030] Figure 10 The state diagram of the lifting hook of the gravity self-locking lifting appliance in the embodiment of the utility model when the lifting hook is folded is shown in the figure
[0031] Figure 11 The left view of Figure 10 is shown in the figure
[0032] Reference signs:
[0033] 1 - lower beam; 11 - handle; 12 - plug cover
[0034] 2 - base; 21 - bottom plate; 22 - ear plate; 23 - first pin shaft
[0035] 3 - upper beam; 31 - lifting ring; 32 - waist-shaped hole; 33 - second pin shaft; 34 - open slot
[0036] 4 - lifting hook; 41 - connecting arm; 42 - first connecting hole; 43 - second connecting hole; 44 - lifting arm; 45 - hooking part
[0037] 5 - towing seat; 51 - hinged seat; 52 - hinged hole DETAILED DESCRIPTION
[0038] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.
[0039] In the description of the utility model, it needs to explain, for the direction word, if there are terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of narrating the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and can not be understood as limiting the specific protection scope of the utility model.
[0040] In addition, if there are terms "first", "second", only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" feature can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.
[0041] The specific embodiments of the utility model are further described below in conjunction with the drawings of the specification, so that the technical scheme of the utility model and its beneficial effects are clearer and more explicit. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and can not be understood as limiting the utility model.
[0042] Referring to Figures 1-3 As shown in the figure, the utility model embodiment provides a gravity self-locking lifting appliance for towing seat, two opposite hinge seats 51 are arranged on the towing seat 5, and hinge holes 52 are arranged on the hinge seats 51, the gravity self-locking lifting appliance comprises an upper beam 3, a lower beam 1 and two lifting hooks 4; Specifically, the hinge seat 51 of the towing seat 5 comprises two opposite hinge plates, and hinge holes 52 are arranged on the hinge plates; The lifting hook 4 is hung on the hinge hole 52 of the hinge plate located on the inner side. The length of the lower beam 1 is less than the spacing between the two hinge seats 51.
[0043] Referring to Figure 4 As shown in the figure, the top surface of the lower beam 1 is respectively provided with a base 2 at both ends, and a first pin shaft 23 is arranged on the base 2; The front side of the lower beam 1 is provided with a handle 11; Specifically, the handle 11 is in U-shaped structure, and the free end of the handle 11 extends from the front side of the towing seat 5. The two ends of the lower beam 1 are respectively provided with plugs 12.
[0044] Referring to Figure 6As shown, the upper beam 3 is arranged above the lower beam 1 and between the two bases 2, and a lifting ring 31 is arranged on the upper beam 3; the two ends of the upper beam 3 are respectively provided with an axial waist-shaped hole 32, and a second pin shaft 33 is slidably arranged in the waist-shaped hole 32; specifically, the lifting ring 31 is arranged at the middle of the top surface of the upper beam 3. The two ends of the upper beam 3 are respectively provided with an open slot 34 matched with the hook 4.
[0045] Referring to Figure 7 As shown, the upper end of the hook 4 is hingedly connected with the corresponding first pin shaft 23 and the second pin shaft 33, and the lower end of the hook 4 is used for hooking the hinged hole 52 of the traction base 5. Specifically, the hook 4 comprises a connecting arm 41, the inner side end of the connecting arm 41 is provided with a first connecting hole 42 matched with the second pin shaft 33, and the middle of the connecting arm 41 is provided with a second connecting hole 43 matched with the first pin shaft 23; the outer side end of the connecting arm 41 is downwardly and obliquely bent to form a lifting arm 44, and the lower end of the lifting arm 44 is provided with a back hook part 45. In the embodiment, the included angle between the connecting arm 41 and the lifting arm 44 is 120°.
[0046] Referring to Figure 5 As shown, the base 2 comprises a bottom plate 21 fixedly installed on the lower beam 1, and two ear plates 22 are oppositely arranged on the bottom plate 21, the two ends of the first pin shaft 23 are respectively connected with the two ear plates 22, and the hook 4 is located between the two ear plates 22 and is hingedly connected with the first pin shaft 23.
[0047] Referring to Figures 8-9 As shown, when the lifting device is lowered, the two hooks of the lifting device are opened by the weight of the workpiece; referring to Figures 10-11 As shown, when the lifting device is raised, the lifting device is folded to lock the workpiece, preventing the workpiece from falling off. The adjustable double-arm lifting frame is adopted, the main body lifting beam is divided into an upper layer and a lower layer in a hinge structure; the two side lifting arms are connected through pin shafts to realize the opening and folding functions. The special-shaped special hook locks the workpiece, preventing the workpiece from falling off. The waist-shaped hole is designed on the upper beam, and the lifting arm can automatically adjust the distance between the hooks. The special handle is designed to facilitate operation.
[0048] In the description of the specification, the description of the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0049] Through the structure and principle described above, those skilled in the art should understand that the utility model is not limited to the specific implementation described above, and improvements and replacements of commonly known technologies in the field on the basis of the utility model all fall within the protection scope of the utility model, which should be limited by each claim.
Claims
1. A gravity self-locking lifting device for a traction seat, wherein the traction seat (5) is provided with two opposing hinge seats (51), and the hinge seats (51) are provided with hinge holes (52), characterized in that: The gravity self-locking lifting device includes an upper beam (3), a lower beam (1), and two hooks (4); The lower beam (1) has bases (2) at both ends of its top surface, and a first pin (23) is provided on the base (2); a handle (11) is provided on the front side of the lower beam (1); The upper beam (3) is positioned above the lower beam (1) and between the two bases (2), and a lifting ring (31) is provided on the upper beam (3); axial waist-shaped holes (32) are provided at both ends of the upper beam (3), and a second pin (33) is slidably provided in the waist-shaped hole (32); The upper end of the hook (4) is hinged to the corresponding first pin (23) and second pin (33) respectively, and the lower end of the hook (4) is used to hook the hinge hole (52) of the traction seat (5).
2. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: The handle (11) has a U-shaped structure, and the free end of the handle (11) extends from the front side of the traction seat (5).
3. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: The lower beam (1) is provided with caps (12) at both ends.
4. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: The base (2) includes a base plate (21) fixedly installed on the lower beam (1), and two ear plates (22) are arranged opposite to each other on the base plate (21). The two ends of the first pin (23) are respectively connected to the two ear plates (22), and the hook (4) is located between the two ear plates (22) and hinged to the first pin (23).
5. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: One lifting ring (31) is provided, located in the middle of the top surface of the upper beam (3).
6. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: The upper beam (3) is provided with opening slots (34) at both ends that are adapted to the hooks (4).
7. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: The hook (4) includes a connecting arm (41), the inner end of the connecting arm (41) is provided with a first connecting hole (42) adapted to the second pin (33), and the middle part of the connecting arm (41) is provided with a second connecting hole (43) adapted to the first pin (23); the outer end of the connecting arm (41) is bent downward to form a boom (44), and the lower end of the boom (44) is provided with a hook portion (45).
8. The gravity self-locking lifting device for a traction seat according to claim 7, characterized in that: The included angle between the connecting arm (41) and the boom (44) is 120°.
9. The gravity self-locking lifting device for a traction seat according to claim 1, characterized in that: The hinge seat (51) of the traction seat (5) includes two hinge plates arranged opposite each other, and the hinge plates are provided with hinge holes (52); the hook (4) is hooked to the hinge hole (52) of the hinge plate located on the inner side.
10. The gravity self-locking lifting device for the traction seat according to claim 1, characterized in that: The length of the lower beam (1) is less than the distance between the two hinge seats (51).