Seven-connecting-rod lifting pitching mechanism

Abstract

The utility model discloses a seven-connecting-rod lifting pitching mechanism, and relates to the technical field of seven-connecting-rod mechanisms, the seven-connecting-rod lifting pitching mechanism is provided with a supporting mechanism, when the device needs to be moved, a motor is only needed to drive a rotating rod to rotate, four first screws are driven to rotate through assemblies, and four rollers are driven to extend out of a round opening to support the whole device; a worker can push the device to move through the four rolling wheels, when the device does not move, the rotating rod is rotated reversely to enable the rolling wheels to retract so that the supporting base can support the whole device, supporting of the rolling wheels is not needed, the service life of the rolling wheels is prolonged, operation is easy, and the worker can operate the device conveniently. After the motor is damaged, a worker can still make the rotating rod rotate through the crank mechanism, so that the device can be normally used, meanwhile, when the crank mechanism is not used, the rotating rod is rotationally connected with the mounting base, when the rotating rod rotates, the crank mechanism cannot be driven to rotate, and the situation that people get close to the device and are hurt by the rotating mounting base and the grip is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of seven-link mechanisms, in particular to a seven-link lifting and pitching mechanism. Background Art

[0002] A lifting mechanism is generally a lifting mechanical device for vertically transporting people or objects, and is used for vertically transporting corresponding equipment. The lifting device is often equipped with various planar conveying equipment. The driving modes generally include electric drive, hydraulic drive, etc., and it is mainly composed of a drive device, a mechanism connecting frame, a hydraulic system, an electrical system, and a control system. The seven-link lifting and pitching mechanism is one of the above-mentioned devices. At the same time, due to the difficulty of disassembling and installing the engines of land-based and carrier-based aircraft, there are many interface docking points, and the matching accuracy requirements are strict. At the same time, the engine structure is large in size, heavy in weight, and the disassembly and assembly procedures are complicated. The seven-link lifting and pitching mechanism is just suitable for body maintenance, but the traditional lifting mechanism is equipped with rollers at the bottom to facilitate the movement of the device. For example, the patent network discloses an engine disassembly and assembly trolley (publication number: CN103935528B). The bottom of the lifting mechanism in this document is also equipped with rollers to allow the device to move to transport the aircraft engine. However, during the aircraft maintenance process, the device may need to transport the engine, but the engine is heavy, resulting in gravity acting entirely on the four rollers, which may cause damage to the rollers for a long time. Therefore, a technician in this field has proposed a seven-link lifting and pitching mechanism. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a seven-link lifting and pitching mechanism, wherein a supporting device with rollers that can be extended is arranged below the device. When the supporting seat supporting device is not moving, the problem that the roller support in the above background is easily damaged is solved.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a seven-link lifting and pitching mechanism, comprising:

[0005] A seven-bar linkage mechanism, which can realize vertical lifting and vertical transportation of people or objects;

[0006] A supporting mechanism, the supporting mechanism is used to support the seven-bar linkage mechanism, and when the roller of the supporting mechanism extends out from the circular opening, the roller moving device can be used;

[0007] The support mechanism comprises a bottom plate, two support seats are correspondingly installed on the lower surface of the bottom plate, each of the support seats is provided with an empty slot, a first screw is rotatably installed in each of the empty slots, a first threaded seat is arranged on each of the first screws, side plates are installed on both sides of each of the first threaded seats, a roller is installed on the lower surface of each of the side plates, a cavity is provided inside each of the support seats just above the empty slot, a rotating rod is rotatably installed between the two cavities, a cavity is installed at the upper end of each of the first screws and a first bevel tooth is installed, and a second bevel tooth meshing with the first bevel tooth is installed on the surface of the rotating rod in each of the cavities;

[0008] The crank mechanism allows the operator to manually rotate the rotating rod.

[0009] As a further technical solution of the utility model, the support mechanism also includes a motor, which is installed on the side of one of the support seats and the driving end is fixedly connected to one end of the rotating rod. The lower surface of each support seat is provided with a circular opening connected to the empty groove directly below each roller.

[0010] As a further technical solution of the utility model, the crank mechanism includes a mounting seat, which is rotatably mounted on the other end of the rotating rod extending to the outside of the support seat, and an inner cavity is opened in the mounting seat, and a second screw is rotatably mounted in the inner cavity, and a second threaded seat is arranged on the outer surface of the second screw.

[0011] As a further technical solution of the utility model, an insertion rod is installed on the upper surface of the second threaded seat, and a plug hole aligned with the insertion rod is opened on the side of the rotating rod.

[0012] As a further technical solution of the utility model, the lower end of the second screw extends to the outside of the mounting seat and is installed with a knob, and a handle is installed on the side of the mounting seat near the lower end.

[0013] Beneficial Effects

[0014] The utility model provides a seven-link lifting and pitching mechanism. Compared with the prior art, it has the following advantages:

[0015] Beneficial effects:

[0016] 1. A seven-link lifting and pitching mechanism. This device is provided with a supporting mechanism. When it needs to move, it only needs a motor to drive the rotating rod to rotate through the assembly to drive the four first screw rods to rotate, and drive the four rollers to extend from the round mouth to support the entire device. Therefore, the staff can use the four rollers to push the device to move. When it does not move, the rotating rod is reversed to retract the rollers so that the support seat supports the entire device. No roller support is required, which prolongs the service life of the rollers and reduces the possibility of device damage.

[0017] 2. A seven-link lifting and pitching mechanism. A crank mechanism is also provided at the other end of the rotating rod of the device. After the motor is damaged, the staff can rely on the crank mechanism to still rotate the rotating rod, so that the device can be used normally. At the same time, when the crank mechanism is not in use, the rotating rod and the mounting seat are rotatably connected. When the rotating rod rotates, it will not drive the crank mechanism to rotate, thereby preventing people from being injured by the rotating mounting seat and handle when approaching the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a seven-link lifting and pitching mechanism;

[0019] Figure 2 It is a side view of a seven-link lifting and pitching mechanism;

[0020] Figure 3 It is a cross-sectional view of the bottom structure of a seven-link lifting and pitching mechanism;

[0021] Figure 4 The figure is a cross-sectional view of a support seat of a seven-link lifting and pitching mechanism.

[0022] In the figure: 1. seven-bar linkage; 2. bottom plate; 3. support seat; 4. empty slot; 5. first screw rod; 6. first threaded seat; 7. side plate; 8. roller; 9. cavity; 10. rotating rod; 11. first bevel gear; 12. second bevel gear; 13. round mouth; 14. motor; 15. mounting seat; 16. inner cavity; 17. second screw rod; 18. second threaded seat; 19. plug rod; 20. socket; 21. knob; 22. handle. DETAILED DESCRIPTION

[0023] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0026] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0027] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0028] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0029] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0030] Figure 1 It is a structural schematic diagram of a seven-link lifting and pitching mechanism;

[0031] Figure 2 It is a side view of a seven-link lifting and pitching mechanism;

[0032] Figure 3 It is a cross-sectional view of the bottom structure of a seven-link lifting and pitching mechanism;

[0033] Figure 4 It is a cross-sectional view of a support seat of a seven-link lifting and pitching mechanism;

[0034] like Figure 1-4 As shown, a seven-link lifting and pitching mechanism disclosed in the present invention may include: a seven-link mechanism 1, a support mechanism, a crank mechanism and other components

[0035] like Figure 1-4 As shown, the support mechanism includes a bottom plate 2, a support seat 3, an empty slot 4, a first screw 5, a first threaded seat 6, a side plate 7, a roller 8, a cavity 9, a rotating rod 10, a first bevel gear 11, a second bevel gear 12, a round mouth 13 and a motor 14;

[0036] The two support seats 3 are installed on the lower surface of the base plate 2, the two empty grooves 4 are respectively opened in the two support seats 3, the two first screws 5 are respectively rotatably installed in the two empty grooves 4, the two first threaded seats 6 are respectively arranged on the two first screws 5, the two groups of side plates 7 are respectively installed on the sides of the two first threaded seats 6, the two rollers 8 in each group are respectively installed on the lower surface of each group of two side plates 7, the two cavities 9 are respectively opened in the two support seats 3 and are directly above the empty grooves 4, the rotating rod 10 is rotatably installed in the two cavities 9, the two first bevel teeth 11 are respectively installed on the upper ends of the two first screws 5 extending into the cavities 9, the two second bevel teeth 12 are respectively arranged on the rotating rods 10 in the two cavities 9 and mesh with the first bevel teeth 11, the two groups of circular openings 13 are respectively opened on the lower surfaces of the two support seats 3 and are directly below the rollers 8, the motor 14 is installed on the side of one of the support seats 3 and the driving end is fixedly connected to one end of the rotating rod 10;

[0037] When the device needs to be moved, the motor 14 drives the rotating rod 10 to rotate, and the rotating rotating rod 10 drives the two first screws 5 to rotate in the same direction through the two first bevel teeth 11 and the second bevel teeth 12, drives the two first threaded seats 6 to descend, and drives the four rollers 8 to descend, until the four rollers 8 extend out of the round mouth 13 to support the entire device, until the device can be easily moved using the four rollers 8. After the movement is completed, the motor 14 drives the rotating rod 10 to reverse and drive the two first screws 5 to rotate in the opposite direction through the above operation, so that the four rollers 8 are retracted from the round mouth 13 into the empty slot 4, and the lower surfaces of the two support seats 3 are in contact with the ground, and the operation is completed;

[0038] like Figure 1-2 As shown, the seven-bar linkage 1 is installed at the center of the upper surface of the base plate 2;

[0039] The seven-link mechanism 1 is an existing technology, which can realize vertical lifting and vertical transportation of people or objects;

[0040] like Figure 3 As shown, the crank mechanism includes a mounting seat 15, an inner cavity 16, a second screw rod 17, a second threaded seat 18, an insertion rod 19, a socket 20, a knob 21 and a handle 22;

[0041] The mounting seat 15 is rotatably mounted on the other end of the rotating rod 10, the inner cavity 16 is opened inside the mounting seat 15, the second screw 17 is rotatably mounted in the inner cavity 16, the second threaded seat 18 is arranged on the surface of the second screw 17, the insertion rod 19 is installed at the center of the upper surface of the second threaded seat 18, the insertion hole 20 is opened on the surface of the rotating rod 10 and aligned with the insertion rod 19, the knob 21 is installed at the lower end of the second screw 17 extending to the outside of the mounting seat 15, and the handle 22 is installed on the side of the mounting seat 15;

[0042] When the motor 14 is damaged, the mounting seat 15 is rotated around the connection to align the socket 20 of the rotating rod 10 with the insertion rod 19, and then the rotating knob 21 drives the second screw 17 to rotate. The rotating second screw 17 drives the second threaded seat 18 to rise, thereby driving the insertion rod 19 to rise and insert into the socket 20, thereby fixing the rotating rod 10 to the mounting seat 15. The staff can manually drive the rotating rod 10 to rotate through the handle 22 and the mounting seat 15. The device can still be used when the motor 14 is damaged. When the motor 14 is repaired, the reverse knob 21 drives the second screw 17 to reverse. Through the above operation, the insertion rod 19 is removed from the socket 20, contacting the fixing of the rotating rod 10 and the mounting seat 15. After that, the rotation of the rotating rod 10 will not drive the mounting seat 15 to rotate, thereby preventing people from being injured by the rotating mounting seat 15 and the handle 22 when approaching the device.

[0043] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A seven-link lifting and pitching mechanism, characterized in that: include: A seven-link mechanism (1), wherein the seven-link mechanism (1) can realize vertical lifting and vertical transportation of people or objects; A supporting mechanism, the supporting mechanism is used to support the seven-bar linkage (1), and when a roller of the supporting mechanism extends out from the circular opening, the roller moving device can be used; The support mechanism comprises a bottom plate (2), two support seats (3) are correspondingly mounted on the lower surface of the bottom plate (2), each support seat (3) is provided with a hollow groove (4), a first screw rod (5) is rotatably mounted in each hollow groove (4), a first threaded seat (6) is arranged on each first screw rod (5), side plates (7) are mounted on both sides of each first threaded seat (6), a roller (8) is mounted on the lower surface of each side plate (7), a cavity (9) is provided inside each support seat (3) just above the hollow groove (4), a rotating rod (10) is rotatably mounted between the two cavities (9), a first bevel tooth (11) is mounted in the cavity (9) at the upper end of each first screw rod (5), and a second bevel tooth (12) meshing with the first bevel tooth (11) is mounted on the surface of the rotating rod (10) in each cavity (9); The crank mechanism allows the operator to manually rotate the rotating rod.

2. The seven-link lifting and pitching mechanism according to claim 1, characterized in that: The support mechanism further comprises a motor (14), wherein the motor (14) is mounted on the side of one of the support seats (3) and a driving end thereof is fixedly connected to one end of a rotating rod (10), and a circular opening (13) communicating with the empty slot (4) is provided on the lower surface of each of the support seats (3) directly below each roller (8).

3. The seven-link lifting and pitching mechanism according to claim 1, characterized in that: The crank mechanism comprises a mounting seat (15), wherein the mounting seat (15) is rotatably mounted on the other end of the rotating rod (10) extending to the outside of the supporting seat (3), an inner cavity (16) is provided in the mounting seat (15), a second screw rod (17) is rotatably mounted in the inner cavity (16), and a second threaded seat (18) is provided on the outer surface of the second screw rod (17).

4. The seven-link lifting and pitching mechanism according to claim 3, characterized in that: An insertion rod (19) is installed on the upper surface of the second threaded seat (18), and a plug hole (20) aligned with the insertion rod (19) is provided on the side surface of the rotating rod (10).

5. The seven-link lifting and pitching mechanism according to claim 3, characterized in that: The lower end of the second screw rod (17) extends to the outside of the mounting seat (15) and is installed with a knob (21), and a handle (22) is installed on the side of the mounting seat (15) near the lower end.

Images