A rescue mechanism that is convenient for forward and backward turning

Abstract

The present invention provides a rescue mechanism that is convenient for forward and backward steering, including a front steering unit and a rear steering unit, the rear steering unit including a manual steering assembly and two rear steering assemblies, the two rear steering assemblies are arranged in parallel, one side of the two rear steering assemblies is respectively hinged to the two ends of the manual steering assembly, and the other side of the two rear steering assemblies is provided with a front steering unit, the front steering unit is used to control the steering of the front end of the rescued equipment, and the manual steering assembly and the two rear steering assemblies are used to control the steering of the rear end of the rescued equipment. The rescue mechanism that is convenient for forward and backward steering described in the present invention is reasonably designed, and the No. 1 turntable of the front steering unit can achieve a larger angle of steering within the same range relative to the connecting rod steering; the introduction of the rear steering unit can complete the steering adjustment of the rescued equipment within a small range, and is easy to promote.

Description

Technical Field

[0001] The present invention belongs to the technical field of heavy-duty AGV rescue, and particularly relates to a rescue mechanism that is convenient for front-back steering. Background Art

[0002] During the use of AGV equipment, there are situations where the tires cannot move, and there is no corresponding overhead crane or gantry crane at the fault site. At this time, how to transfer the heavy-duty AGV to the maintenance site becomes a necessity. However, as an industry that has become popular in recent years, the AGV rescue field has basically not been formed, and the corresponding rescue mechanisms and rescue equipment are also in a blank state. The rescue industry has a history of many years, and there are many mature devices in automobile rescue, aircraft rescue, and marine vessel rescue. Based on referring to these mature devices in the rescue industry, a rescue mechanism for heavy-duty AGVs is proposed. In the prior art, a trailer component for vehicle rescue trailers is disclosed, including a fixed frame, a hydraulic rod, a sliding frame, a connecting rod, and a movable block. The sliding frame can be adjusted to adapt to the rescue of different vehicles. The rescue vehicle tires are clamped and lifted by the sliding frame, and the fixed frame is connected to the rescue vehicle to achieve vehicle rescue. In addition, a rapid relocation device for landing gears is disclosed in the prior art. The device includes a vehicle frame, a lifting bottom plate, a rear pull rod, and a bogie. The damaged landing gear is dragged onto the lifting bottom plate through the rear pull rod. The damaged landing gear is lifted off the ground by the lifting of the lifting bottom plate. The aircraft is towed to the maintenance point by a tractor, and the relocation device is steered through the bogie.

[0003] The above existing mechanisms are not applicable to heavy-duty AGV rescue mainly because:

[0004] 1. For automobile rescue, the weight of the automobile itself is relatively light, within 10 tons, and the premise for automobile rescue is that the automobile tires can move. The mechanism introduced in the present invention is for the situation where the tires cannot move, and the tonnage is in the dozens of tons.

[0005] 2. For the landing gear rescue equipment, the weight to be rescued is very heavy, but the operable space is also large. The landing gear is very high off the ground, about several meters, while the heavy-duty AGV itself is very low off the ground, about 80 mm. The mechanisms introduced above cannot meet the requirements. Summary of the Invention

[0006] In view of this, the present invention aims to propose a rescue mechanism that is convenient for front-back steering to solve the problem of steering within a narrow range of the rescue mechanism.

[0007] To achieve the above object, the technical solution of the present invention is realized as follows:

[0008] A rescue mechanism that is convenient for front and rear steering, comprises a front steering unit and a rear steering unit, wherein the rear steering unit comprises a manual steering assembly and two rear steering assemblies, wherein the two rear steering assemblies are arranged in parallel, one side of the two rear steering assemblies is respectively hinged to the two ends of the manual steering assembly, and the other side of the two rear steering assemblies is provided with a front steering unit, wherein the front steering unit is used to control the steering of the front end of the rescued equipment, and the manual steering assembly and the two rear steering assemblies are used to control the steering of the rear end of the rescued equipment.

[0009] Furthermore, the front steering unit includes a No. 1 traction rod, an auxiliary support wheel, a No. 1 carrier frame, a No. 1 turntable and a No. 1 carrier wheel, the No. 1 traction rod is connected to one end of the No. 1 carrier frame, and an auxiliary support wheel is installed at the connection between the No. 1 traction rod and the No. 1 carrier frame, a No. 1 turntable is installed in the middle of the other end of the No. 1 carrier frame, and a number of No. 1 carrier wheels are respectively installed on both sides of the other end of the No. 1 carrier frame.

[0010] Furthermore, the rear steering assembly includes a No. 2 traction rod, a No. 2 carrier frame, a No. 2 turntable and a No. 2 load-bearing wheel, one side of the No. 2 carrier frame is connected to the No. 2 traction rod, a No. 2 turntable is installed in the middle of the upper end of the No. 2 carrier frame, and a number of No. 2 load-bearing wheels are respectively installed on both sides of the upper end of the No. 2 carrier frame.

[0011] Furthermore, a handle structure is provided at the upper end of the No. 1 traction rod.

[0012] Furthermore, the No. 1 traction rod is a steel plate structure.

[0013] Furthermore, the second traction rod is a steel pipe structure.

[0014] Furthermore, rubber plates are bonded to the upper surfaces of the No. 1 turntable and the No. 2 turntable.

[0015] Furthermore, the first load-bearing wheel and the second load-bearing wheel are both rubber wheels.

[0016] Furthermore, the manual steering assembly includes an operating lever, a universal wheel, a connecting frame and a connecting pin. The connecting frame is a rectangular structure. The operating lever is installed on the top of the connecting frame, and a connecting pin is installed at both ends of the bottom of the connecting frame. A universal wheel is installed on one side of each connecting pin, and the connecting frame is connected to the No. 2 traction rod through the connecting pin.

[0017] Compared with the prior art, the rescue mechanism that is convenient for forward and backward steering described in the present invention has the following advantages:

[0018] (1) The rescue mechanism that is convenient for forward and backward steering described in the present invention is reasonably designed. The No. 1 turntable of the front steering unit can achieve a larger angle of steering within the same range relative to the connecting rod. The introduction of the rear steering unit can complete the steering adjustment of the rescued equipment within a small range, which is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure according to an embodiment of the present invention installed with the rescue equipment;

[0021] Figure 2 This is a schematic diagram of a front steering unit according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a rear steering unit according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the principle of the rear steering unit according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of a rear steering assembly according to an embodiment of the present invention;

[0025] Figure 6 Schematic diagram of a manual steering assembly according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Front steering unit; 11. No. 1 traction rod; 12. Auxiliary support wheel; 13. No. 1 load-bearing frame; 14. No. 1 turntable; 15. No. 1 load-bearing wheel; 2. Rear steering unit; 21. Manual steering assembly; 211. Operating lever; 212. Universal wheel; 213. Connecting frame; 214. Connecting pin shaft; 22. No. 2 traction rod; 23. No. 2 load-bearing frame; 24. No. 2 turntable; 25. No. 2 load-bearing wheel; 3. Rescued equipment. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0032] like Figures 1 to 6 As shown, a rescue mechanism that is convenient for front and rear steering includes a front steering unit 1 and a rear steering unit 2, wherein the rear steering unit 2 includes a manual steering assembly 21 and two rear steering assemblies, wherein the two rear steering assemblies are arranged in parallel, and one side of the two rear steering assemblies is respectively hinged to the two ends of the manual steering assembly 21, and the other side of the two rear steering assemblies is provided with a front steering unit 1, wherein the front steering unit 1 is used to control the steering of the front end of the rescued equipment 3, and the manual steering assembly 21 and the two rear steering assemblies are used to control the steering of the rear end of the rescued equipment 3. The design of this rescue mechanism is reasonable, and the No. 1 turntable 14 of the front steering unit 1 can achieve a larger angle of steering within the same range relative to the connecting rod steering; and the introduction of the rear steering unit 2 can complete the steering adjustment of the rescued equipment 3 within a small range. In this embodiment, the rescue mechanism needs to use lifting equipment such as a jack to place the rescued equipment 3 on the rescue mechanism during use.

[0033] The front steering unit 1 includes a No. 1 traction rod 11, an auxiliary support wheel 12, a No. 1 carrier frame 13, a No. 1 turntable 14 and a No. 1 load-bearing wheel 15. The No. 1 traction rod 11 is connected to one end of the No. 1 carrier frame 13, and the auxiliary support wheel 12 is installed at the connection between the No. 1 traction rod 11 and the No. 1 carrier frame 13. The No. 1 turntable 14 is installed in the middle of the other end of the No. 1 carrier frame 13, and a plurality of No. 1 load-bearing wheels 15 are installed on both sides of the other end of the No. 1 carrier frame 13. In actual use, the number of the No. 1 load-bearing wheels 15 can be determined according to actual conditions. In this embodiment, the front steering unit 1 is composed of the No. 1 traction rod 11, the auxiliary support wheel 12, the No. 1 carrier frame 13, the No. 1 turntable 14 and the No. 1 load-bearing wheel 15. The No. 1 traction rod 11 is welded by steel plates, and the overall weight is light and the rigidity is large. The No. 1 traction rod 11 is provided with a handle structure at the upper end, and the configuration of the upper end handle makes the No. 1 traction rod 11 convenient to disassemble and carry; the No. 1 traction rod 11 is connected to the No. 1 carrier frame 13 through a pin shaft; the auxiliary support wheel 12 is added to facilitate the transportation of the front steering unit 1. Since the front end No. 1 traction rod 11 is easy to cause the equipment to tilt forward and is inconvenient to transport, the function of the auxiliary support wheel 12 is to support the front end No. 1 traction rod 11; the No. 1 carrier frame 13 is formed by welding a combination of profiles and steel plates; the No. 1 turntable 14 is connected to the No. 1 carrier frame 13 through a pin shaft and a screw, and a rubber plate is bonded on the No. 1 turntable 1 to increase the friction of the contact surface through the rubber plate; the No. 1 load-bearing wheel 15 is connected to the No. 1 carrier frame 13 through a pin shaft, and the No. 1 load-bearing wheel 15 is a rubber wheel, which plays a major load-bearing role.

[0034] The rear steering assembly includes a No. 2 traction rod 22, a No. 2 carrier frame 23, a No. 2 turntable 24 and a No. 2 load-bearing wheel 25. One side of the No. 2 carrier frame 23 is connected to the No. 2 traction rod 22. The No. 2 turntable 24 is installed in the middle of the upper end of the No. 2 carrier frame 23. A plurality of No. 2 load-bearing wheels 25 are installed on both sides of the upper end of the No. 2 carrier frame 23. In actual use, the number of the No. 2 load-bearing wheels 25 can be determined according to actual conditions. In this embodiment, the rear steering unit 2 is composed of a manual steering assembly 21, a No. 2 traction rod 22, a No. 2 carrier frame 23, a No. 2 turntable 24 and a No. 2 load-bearing wheel 25. The No. 2 traction rod 22 is welded from steel pipes, which is lightweight and convenient for manual traction. The No. 2 bearing frame 23 is welded from profiles and steel plates. The No. 2 turntable 24 is connected to the No. 2 bearing frame 23 through a pin and a nut. A rubber sheet is bonded to the No. 2 turntable 24 to increase the friction of the contact surface. The No. 2 bearing wheel 25 is connected to the No. 2 bearing frame 23 through a pin. The No. 2 bearing wheel 25 is a rubber wheel and plays a major role in bearing. The rear steering unit 2 is steered through a parallelogram formed by two No. 2 turntables 24 and the connecting pin 214 of the manual steering assembly 21.

[0035] When the rescue mechanism is placed at the rescue position of the faulty AGV, the faulty AGV can be transported to the maintenance site by connecting the No. 1 traction rod 11 to a forklift or a corresponding traction vehicle.

[0036] The manual steering assembly 21 includes an operating rod 211, a universal wheel 212, a connecting frame 213 and a connecting pin 214. The connecting frame 213 is a rectangular structure. The operating rod 211 is installed on the top of the connecting frame 213, and a connecting pin 214 is installed at both ends of the bottom of the connecting frame 213. A universal wheel 212 is installed on one side of each connecting pin 214, and the connecting frame 213 is connected to the No. 2 traction rod 22 through the connecting pin 214. In actual use, the number of universal wheels 212 is not limited to 2, and can also be multiple. In this embodiment, the manual steering assembly 21 is mainly composed of an operating rod 211, a universal wheel 212, a connecting frame 213 and a connecting pin 214. The operating rod 211 is made of bent and welded steel plates, which is convenient for people to perform steering operations; the universal wheel 212 supports the connecting frame 213 and realizes follow-up during the steering process; the connecting frame 213 is welded with profiles to form one side of the parallelogram, ensuring that the two No. 2 traction rods 22 turn together when steering; the connecting pin 214 and the connecting hole in the No. 2 traction rod 22 form a rotating pair to realize the rotation of the parallelogram.

[0037] Working principle of a rescue mechanism that facilitates forward and backward steering:

[0038] When the device is used to rescue a faulty AGV, the faulty AGV is lifted up by a jack or other lifting device, and the front and rear steering mechanisms are placed below the jacking position of the rescued mechanism. The first turntable 14 and the second turntable 24 are in contact with the lifting position, and the connection between the rescue mechanism and the rescued device 3 is achieved by the rubber plates on the three turntables in contact with the rescued mechanism (mainly connected by friction). The first traction rod 11 of the front steering unit 1 is connected to a tractor or a forklift, and the first turntable 14 is driven by the tractor or the forklift to steer. During the process of moving, the operating rod 211 of the rear steering unit 2 is controlled to steer, and the steering of the rescued mechanism is achieved by the steering of the front and rear steering units.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rescue mechanism that is easy to turn forward and backward. Features: The invention comprises a front steering unit (1) and a rear steering unit (2), wherein the rear steering unit (2) comprises a manual steering assembly (21) and two rear steering assemblies, the two rear steering assemblies are arranged in parallel, one side of the two rear steering assemblies is respectively hinged to the two ends of the manual steering assembly (21), and the other side of the two rear steering assemblies is provided with the front steering unit (1), the front steering unit (1) is used to control the steering of the front end of the rescued equipment (3), and the manual steering assembly (21) and the two rear steering assemblies are used to control the steering of the rear end of the rescued equipment (3); The front steering unit (1) comprises a No. 1 traction rod (11), an auxiliary support wheel (12), a No. 1 carrier frame (13), a No. 1 turntable (14) and a No. 1 load-bearing wheel (15); the No. 1 traction rod (11) is connected to one end of the No. 1 carrier frame (13); the auxiliary support wheel (12) is installed at the connection between the No. 1 traction rod (11) and the No. 1 carrier frame (13); the No. 1 turntable (14) is installed at the middle of the other end of the No. 1 carrier frame (13); and a plurality of No. 1 load-bearing wheels (15) are installed on both sides of the other end of the No. 1 carrier frame (13); The rear steering assembly comprises a No. 2 traction rod (22), a No. 2 carrier frame (23), a No. 2 turntable (24) and a No. 2 load-bearing wheel (25); one side of the No. 2 carrier frame (23) is connected to the No. 2 traction rod (22); the No. 2 turntable (24) is installed in the middle of the upper end of the No. 2 carrier frame (23); and a plurality of No. 2 load-bearing wheels (25) are installed on both sides of the upper end of the No. 2 carrier frame (23); The manual steering assembly (21) comprises an operating rod (211), a universal wheel (212), a connecting frame (213) and a connecting pin (214); the connecting frame (213) is a rectangular parallelepiped structure; the operating rod (211) is installed on the top of the connecting frame (213); a connecting pin (214) is installed at each of the two ends of the bottom of the connecting frame (213); a universal wheel (212) is installed on one side of each connecting pin (214); and the connecting frame (213) is connected to the second traction rod (22) via the connecting pin (214); The upper surfaces of the first turntable (14) and the second turntable (24) are both bonded with rubber plates; The rear steering unit (2) performs steering via a parallelogram formed by two No. 2 turntables (24) and a connecting pin (214) of the manual steering assembly (21); The connecting frame (213) forms one side of a parallelogram; The front and rear steering mechanisms are placed below the jacking position of the rescued mechanism, the first turntable (14) and the second turntable (24) are in contact with the jacking position, and the connection between the rescue mechanism and the rescued device (3) is achieved by the rubber plates on the three turntables in contact with the rescued mechanism; The first drawbar (11) of the front steering unit (1) is connected to a tractor or a forklift.

2. A rescue mechanism that is easy to turn forward and backward according to claim 1, Features: The upper end of the No. 1 traction rod (11) is provided with a handle structure.

3. A rescue mechanism that is easy to turn forward and backward according to claim 1, Features: The No. 1 traction rod (11) is a steel plate structure.

4. A rescue mechanism that facilitates forward and backward turning according to claim 1, Features: The second traction rod (22) is a steel pipe structure.

5. A rescue mechanism that is easy to turn forward and backward according to claim 1, Features: The first load-bearing wheel (15) and the second load-bearing wheel (25) are both rubber wheels.

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