Micro tiller handrail rotating seat with lubricating function

Abstract

The utility model discloses a kind of micro tiller handrail rotary seat with lubricating function, it includes fixed seat, the upper end of the fixed seat is installed with rotary disc, the upper end of the rotary disc is rotatably connected with rack, the both sides of the rack are fixedly connected with end tooth disc symmetrically, support mechanism is fixedly connected in the rack, bushing is rotatably connected in the support mechanism, the surface of the rack is equipped with oil injection nozzle;The support mechanism is composed of oil pipe, oil tank body, lower shell, connecting bolt and upper shell, the oil tank body is fixedly connected on the top of upper shell, the oil pipe is fixedly connected on the top of oil tank body and is communicated with oil tank body, the oil injection nozzle is threadedly connected with oil pipe, the lower shell is arranged on the bottom of upper shell, and the connecting bolt makes the upper shell and the lower shell fixedly connected. By injecting lubricating grease into support mechanism through oil injection nozzle, reduce the wear and tear received when bushing rotates, and the support mechanism improves the amount of lubricating grease stored in rotary seat.

Description

Technical Field

[0001] This utility model relates to the field of micro-tiller technology, and in particular to a micro-tiller handle rotating seat with lubrication function. Background Technology

[0002] Mini tillers are powered by small diesel or gasoline engines and are widely applicable to dry land, paddy fields, and orchards in plains, mountains, and hills. Equipped with appropriate implements, they can perform tasks such as pumping water, generating electricity, spraying pesticides, and watering. They can also tow trailers for short-distance transport. Mini tillers can move freely in fields, making them convenient for users to use and store, eliminating the problem of large agricultural machinery being unable to access mountainous fields. The handlebar assembly is the main operating component of the mini tiller, and its flexibility and reliability directly affect the operator's labor intensity and work efficiency. To accommodate operators of different heights and working habits, as well as different terrains, the handlebar of a mini tiller is usually designed to rotate around a vertical or horizontal axis. This core component that enables the rotation function is called the "handlebar swivel seat."

[0003] The mainstream rotary handlebar structures of mini tillers can be mainly divided into two types: simple bushing type and standard bearing type. The simple bushing type typically consists of a rotating shaft, a bushing (or a shaft hole machined directly into the body), and locking bolts. Its advantages are simple structure and low manufacturing cost. However, most of these structures lack dedicated lubrication channels and oil reservoirs. During long-term use, the rotating shaft and bushing rely solely on a small amount of grease applied during initial assembly. With frequent rotation and the intrusion of field dust and moisture, the grease quickly becomes ineffective, dries out, or becomes contaminated. This causes the rotary handlebar to operate under dry or semi-dry friction, leading to rapid wear of the rotating contact surfaces and increased clearance. This not only affects the operating feel but also reduces structural precision, and in severe cases, may cause the handlebar to become unstable, posing a safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide a rotary seat for a micro-tiller handle with lubrication function, which can increase the amount of grease retained in the rotary seat and lubricate the bushing for a long time.

[0005] To achieve the above objectives, a rotating handle seat for a micro-tiller with lubrication function is provided, comprising a fixed base, a rotating disk mounted on the upper end of the fixed base, a frame rotatably connected to the upper end of the rotating disk, end gears symmetrically fixedly connected to both sides of the frame, a support mechanism fixedly connected in the frame, a bushing rotatably connected in the support mechanism, an oil injection nozzle on the surface of the frame, and the oil injection nozzle communicating with the support mechanism; the support mechanism consists of an oil supply pipe, an oil storage tank, a lower shell, connecting bolts, and an upper shell, the upper shell being located in the frame, with both ends fixedly connected to the inner wall of the frame, the oil storage tank fixedly connected to the top of the upper shell and communicating with the upper shell, the oil supply pipe fixedly connected to the top of the oil storage tank and communicating with the oil storage tank, and the oil supply pipe extending upward through the frame, the oil injection nozzle threadedly connected to the oil supply pipe, the lower shell located at the bottom of the upper shell, the connecting bolts fixing the upper shell and the lower shell together, and the bushing being surrounded by the upper shell and the lower shell. It can increase the amount of grease remaining in the rotating seat, providing long-term lubrication for the bushing.

[0006] According to the aforementioned rotary handle seat for a micro-tiller with lubrication function, a sealing gasket is provided between the upper and lower housings. The sealing gasket improves the sealing performance at the connection between the upper and lower housings, preventing grease leakage.

[0007] According to the aforementioned rotating seat for a micro-tiller's handle with lubrication function, the outer surface of the bushing is surrounded by a limiting ring, which is embedded in both the upper and lower housings. The limiting ring confines the bushing within the upper and lower housings, preventing radial movement of the bushing.

[0008] According to the aforementioned rotary seat for a micro-tiller handlebar with lubrication function, the bushing has protruding teeth for keying with the rotating shaft connecting the handlebar, allowing the bushing to replace the rotating shaft in contact with the rotary seat.

[0009] The above-mentioned solution has the following beneficial effects: Lubricating grease is injected into the support mechanism through the grease nipple to reduce wear on the bushing during rotation, and the support mechanism increases the amount of grease stored in the rotating seat.

[0010] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an overall structural diagram of a rotary handle seat for a micro-tiller with lubrication function according to this utility model; Figure 2 This is a front view of a rotary handle seat for a micro-tiller with lubrication function according to this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural diagram of a support mechanism for a rotating handle seat of a micro-tiller with lubrication function according to the present invention. Figure 5 This is a cross-sectional view of the support mechanism of the rotating seat of the handrail of a micro-tiller with lubrication function according to this utility model.

[0012] Legend: 1. Frame; 2. Fixed base; 3. End gear plate; 4. Oil injection nozzle; 5. Rotary disc; 6. Bushing; 7. Support mechanism; 8. Oil supply pipe; 9. Oil storage tank; 10. Lower housing; 11. Connecting bolts; 12. Upper housing; 13. Limiting ring. Detailed Implementation

[0013] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0014] Reference Figure 1-5 This utility model discloses a rotating handle seat for a micro-tiller with lubrication function, comprising a fixed base 2, a rotating disk 5 mounted on the upper end of the fixed base 2, a frame 1 rotatably connected to the upper end of the rotating disk 5, end gear disks 3 symmetrically fixedly connected to both sides of the frame 1, a support mechanism 7 fixedly connected in the frame 1, a bushing 6 rotatably connected in the support mechanism 7, and an oil injection nozzle 4 provided on the surface of the frame 1, which communicates with the support mechanism 7; the support mechanism 7 consists of an oil supply pipe 8, an oil storage tank 9, a lower shell 10, connecting bolts 11, and an upper shell 12. The upper housing 12 is located in the frame 1, and both ends of the upper housing 12 are fixedly connected to the inner wall of the frame 1. The oil storage tank 9 is fixedly connected to the top of the upper housing 12 and communicates with the upper housing 12. The oil supply pipe 8 is fixedly connected to the top of the oil storage tank 9 and communicates with the oil storage tank 9. The oil supply pipe 8 extends upward through the frame 1. The oil nozzle 4 is threadedly connected to the oil supply pipe 8. The lower housing 10 is located at the bottom of the upper housing 12. The connecting bolts 11 fix the upper housing 12 and the lower housing 10 together. The bushing 6 is surrounded by the upper housing 12 and the lower housing 10.

[0015] A sealing gasket is provided between the upper housing 12 and the lower housing 10. The sealing gasket improves the sealing performance at the connection between the upper housing 12 and the lower housing 10 and prevents grease leakage.

[0016] The outer surface of the bushing 6 is surrounded by a limiting ring 13, which is embedded in the upper housing 12 and the lower housing 10 respectively. The limiting ring 13 restricts the bushing 6 within the upper housing 12 and the lower housing 10, preventing the bushing 6 from moving radially.

[0017] The bushing 6 has protruding teeth inside. These teeth are used to connect with the rotating shaft of the handrail, allowing the bushing 6 to replace the rotating shaft in contact with the rotating seat.

[0018] Working principle: During use, grease is injected into the support mechanism 7 through the grease injector 4. The grease enters the oil reservoir 9 through the oil supply pipe 8. The rotating shaft connecting the handrail passes through the bushing 6. When the handrail is adjusted, the rotating shaft drives the bushing 6 to rotate in the upper housing 12 and the lower housing 10. During the rotation of the bushing 6, the grease is applied to the outer surface of the bushing 6. When maintaining the support mechanism 7, after unscrewing the connecting bolt 11, the lower housing 10 is removed first, and then the bushing 6 is removed.

[0019] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rotating handlebar seat for a micro-tiller with lubrication function, comprising: The fixed base (2) is characterized in that a rotating disk (5) is installed on the upper end of the fixed base (2), and a frame (1) is rotatably connected to the upper end of the rotating disk (5). End gear disks (3) are symmetrically fixedly connected to both sides of the frame (1). A support mechanism (7) is fixedly connected in the frame (1), and a bushing (6) is rotatably connected in the support mechanism (7). An oil injection nozzle (4) is provided on the surface of the frame (1), and the oil injection nozzle (4) is connected to the support mechanism (7). The support mechanism (7) is composed of an oil pipe (8), an oil storage tank (9), a lower shell (10), connecting bolts (11), and an upper shell (12). The upper shell (12) is located in the machine. In the frame (1), the two ends of the upper shell (12) are fixedly connected to the inner wall of the frame (1), the oil storage tank (9) is fixedly connected to the top of the upper shell (12), and the oil storage tank (9) is connected to the upper shell (12), the oil supply pipe (8) is fixedly connected to the top of the oil storage tank (9) and is connected to the oil storage tank (9), and the oil supply pipe (8) passes through the frame (1) upwards, the oil injection nozzle (4) is threadedly connected to the oil supply pipe (8), the lower shell (10) is located at the bottom of the upper shell (12), the connecting bolt (11) fixes the upper shell (12) and the lower shell (10) together, and the bushing (6) is surrounded by the upper shell (12) and the lower shell (10).

2. The rotary seat for a micro-tiller's handlebar with lubrication function according to claim 1, characterized in that, A sealing gasket is provided between the upper housing (12) and the lower housing (10).

3. The rotary seat for a micro-tiller with lubrication function according to claim 1, characterized in that, The outer surface of the bushing (6) is surrounded by a limiting ring (13), and the limiting ring (13) is embedded in the upper shell (12) and the lower shell (10) respectively.

4. A rotary handlebar with lubrication function for a micro-tiller according to claim 1, characterized in that, The bushing (6) has protruding teeth inside.

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