Novel safety hook assembly of lifting mechanism

Abstract

The utility model discloses a novel safety hook assembly of a lifting mechanism. The novel safety hook assembly comprises a connecting bush, one side of the connecting part is connected with a bent circular tube; the bent circular pipe comprises a straight connector and a bent connector; one side of the bent connector is connected with a powder metallurgy bushing assembly; the left side and the right side of the powder metallurgy lining assembly are connected with connecting plates. A mounting hole is formed in the connecting plate, and a pin shaft is mounted in the mounting hole; a protruding part on one side of the pin shaft is connected with a rack connecting rod; a cutter head connecting shaft is mounted in the powder metallurgy bushing assembly; one side of the cutterhead connecting shaft is connected with the cutterhead; the powder metallurgy bush assembly comprises a left working bush and a right working bush. The mechanism is realized through the synergistic effect of the connecting bush, the bent round pipe, the powder metallurgy bush assembly, the connecting plate, the pin shaft and the rack connecting rod. The cutter head is pushed to conduct cutting or lifting operation by controlling rotation of the rack connecting rod, and meanwhile the overall operation efficiency and durability are improved by means of the excellent characteristics of powder metallurgy materials. The design has wide applicability and potential superiority in various mechanical applications.

Description

Technical Field

[0001] The utility model relates to a novel lifting mechanism safety hook component, belonging to the technical field of agricultural machinery and equipment. Background Art

[0002] A lawn mower is a piece of equipment widely used in gardening and agriculture for trimming lawns and removing weeds. The cutting deck is a core component of a lawn mower, responsible for ensuring the height and uniformity of the grass cut. However, in certain situations, such as during maintenance, cleanup, or storage, the cutting deck needs to be raised to a safe position to prevent accidental activation and possible injury.

[0003] To achieve this, a safety hook is essential. Once the cutterhead is raised to a certain height, it secures it in place, preventing it from accidentally falling due to vibration or other external forces. This design not only improves operational safety but also extends the life of the equipment and reduces maintenance costs.

[0004] Many existing lawn mowers lack effective safety devices for the cutterhead lift mechanism, leading to potential safety hazards during operation and maintenance. Therefore, developing a reliable safety hook would not only improve the stability of the cutterhead when lifted, but also provide greater safety for the operator.

[0005] Furthermore, the safety hook design needs to take into account ease of operation, ensuring that users can easily release the hook when needed and conveniently lock the cutter deck when not in use. Such design ideas will help improve the user experience while enhancing the safety and reliability of the lawn mower. Utility Model Content

[0006] In view of the problems existing in the above-mentioned prior art, the present invention provides a new type of lifting mechanism safety hook assembly, thereby solving the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new type of lifting mechanism safety hook assembly, including a connecting bushing; a curved round tube is connected to one side of the connecting part; the curved round tube includes a straight connection and a curved connection; a powder metallurgy bushing assembly is connected to one side of the curved connection; the left and right sides of the powder metallurgy bushing assembly are connected with connecting plates on the left and right sides; a mounting hole is provided on the connecting plate, and a pin is installed in the mounting hole; a protrusion on one side of the pin is connected to a frame connecting rod; the frame connecting rod is controlled to rotate by the lawn mower console; a cutter disc connecting shaft is installed in the powder metallurgy bushing assembly; one side of the cutter disc connecting shaft is connected to the cutter disc; the powder metallurgy bushing assembly includes two working bushings on the left and right.

[0008] The beneficial effects of this utility model are as follows: By providing a powder metallurgy bushing, the present invention minimizes friction between the cutterhead and the shaft during rotation, reducing wear and improving operational stability. The novel lifting mechanism safety hook operates through the synergistic action of the connecting bushing, curved circular tube, powder metallurgy bushing assembly, connecting plate, pin, and frame connecting rod. By controlling the rotation of the frame connecting rod, the cutterhead is driven for efficient cutting or lifting, while the superior properties of powder metallurgy materials are utilized to improve overall operational efficiency and durability. This design has broad applicability and potential advantages in a variety of mechanical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic front view of the structure of the utility model;

[0010] Figure 2 It is a schematic top view of the structure of the present utility model.

[0011] In the figure: 1. connecting bushing, 2. bent round tube, 21. straight connection, 22. bent connection, 3. powder metallurgy bushing assembly, 31. working bushing, 4. connecting plate, 5. pin. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0014] like Figure 1 、 Figure 2 As shown, a new type of lifting mechanism safety hook assembly includes a connecting bushing 1; a curved circular tube 2 is connected to one side of the connecting bushing 1; the curved circular tube 2 includes a straight connection 21 and a curved connection 22; a powder metallurgy bushing assembly 3 is connected to one side of the curved connection 22; the left and right sides of the powder metallurgy bushing assembly 3 are connected to connecting plates 4 on the left and right sides; a mounting hole is provided on the connecting plate 4, and a pin 5 is installed in the mounting hole; a protrusion on one side of the pin 5 is connected to a frame connecting rod; the frame connecting rod is controlled to rotate by the lawn mower console; a cutter disc connecting shaft is installed in the powder metallurgy bushing assembly 3; one side of the cutter disc connecting shaft is connected to the cutter disc; the powder metallurgy bushing assembly 3 includes two working bushings 31 on the left and right.

[0015] In this mechanism, the connecting bushing is the foundation of the entire lifting mechanism, providing connection and support to other components. Its design must ensure strength and stability to withstand the various forces during the lifting process. The straight connection connects the connecting bushing to the curved connection, ensuring structural continuity. The curved connection changes direction, allowing subsequent components (such as the powder metallurgy bushing assembly) to adapt to specific positions in space, providing flexibility.

[0016] The powder metallurgy bushing assembly provides a sliding fit and reduces friction. The cutterhead connecting shaft is mounted within it, ensuring efficient rotation of the cutterhead. The high wear resistance of powder metallurgy materials excels in this application. Multiple mounting holes on one side of the connecting plate facilitate the securing and installation of the pin 5. The design of the connecting plate ensures structural stability and allows for easy adjustment and maintenance of the assembly through the mounting holes.

[0017] The pin serves as a connecting element between the connecting plate and the frame connecting rod, playing a supporting and load-bearing role. Its protruding part on one side is connected to the frame connecting rod to form a path for power transmission.

[0018] The frame connecting rod is controlled by the mower console, allowing the operator to adjust the rotation angle of the connecting rod in a manually controlled manner. Its movement directly affects the working state of the powder metallurgy bushing assembly and the cutter head connected to it.

[0019] The frame connecting rod is controlled by the mower console, allowing the operator to adjust the rotation angle of the connecting rod in a manually controlled manner. Its movement directly affects the working state of the powder metallurgy bushing assembly and the cutter head connected to it.

[0020] The operator starts the machine through the lawn mower console, and the operation of the console causes the frame connecting rod to rotate. This rotation is transmitted to the connecting plate 4 and the powder metallurgy bushing assembly 3 through the pin 5.

[0021] The rotation of the frame connecting rod causes the cutter head connecting shaft in the powder metallurgy bushing assembly 3 to start rotating, and the cutter head rotates and is lifted accordingly.

[0022] The new lifting mechanism safety hook operates through the synergistic action of a connecting bushing, curved tube, powder metallurgy bushing assembly, connecting plate, pin, and frame connecting rod. By controlling the rotation of the frame connecting rod, the cutterhead is driven for efficient cutting or lifting, while the superior properties of powder metallurgy materials are utilized to improve overall operational efficiency and durability. This design offers broad applicability and potential advantages across a wide range of mechanical applications.

[0023] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new type of lifting mechanism safety hook assembly, characterized in that: The invention comprises a connecting bushing (1); one side of the connecting bushing (1) is connected to a curved circular tube (2); the curved circular tube (2) comprises a straight connection (21) and a curved connection (22); one side of the curved connection (22) is connected to a powder metallurgy bushing assembly (3); the left and right sides of the powder metallurgy bushing assembly (3) are connected to connecting plates (4); a mounting hole is provided on the connecting plate (4), and a pin (5) is installed in the mounting hole; a protruding portion on one side of the pin (5) is connected to a frame connecting rod; the frame connecting rod is controlled to rotate by a lawn mower console; a cutter disc connecting shaft is installed in the powder metallurgy bushing assembly (3); one side of the cutter disc connecting shaft is connected to the cutter disc; the powder metallurgy bushing assembly (3) comprises two left and right working bushings (31).

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