Lifting operation controller

Abstract

The utility model discloses a lifting operation controller, which belongs to the field of flexible shaft controllers and comprises a hollow shell, and a driving gear, an intermediate gear and a rack are accommodated in the shell. An integrally-formed transverse shaft is arranged in the center of one side of the driving gear, and the tail end of the transverse shaft extends out of the shell and is connected with a rotary knob. On a gear ring of the intermediate gear, a half circle is provided with large teeth, a half circle is provided with small teeth, the small teeth of the half circle are in meshed connection with the driving gear, and the large teeth of the half circle are in meshed connection with the rack; and the tail end of the rack is connected with the flexible shaft stay wire. The device is simple in structure, simple, convenient and labor-saving to operate, and capable of bringing more convenient service to operators and saving occupied space at the same time.

Description

Technical Field

[0001] The utility model belongs to the field of flexible shaft controllers, in particular to a lifting operation controller. Background Art

[0002] The rear of a tractor is generally connected to agricultural implements. The existing tractor's agricultural implement lifting controller is a hand-jog lever type, usually set near the seat. However, the space near the seat is small. The hand-jog lever type has the disadvantages of limited swing angle and large installation space. Therefore, it is necessary to design a lifting control controller to solve the above problems. Summary of the Invention

[0003] The purpose of the utility model is to provide a lifting control controller which can save space and is easy and labor-saving to operate.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide a lifting operation controller, including a hollow shell, which accommodates a driving gear, an intermediate gear and a rack; an integrally formed horizontal shaft is provided on the center of one side of the driving gear, and the end of the horizontal shaft extends out of the shell and is connected to the knob; on the gear ring of the intermediate gear, half a circle is large teeth and half a circle is small teeth, half a circle of small teeth is meshed with the driving gear, and half a circle of large teeth is meshed with the rack; the end of the rack is connected to the soft shaft pull wire.

[0005] As a further improvement of the present invention, at least one end of the rack is provided with a threaded hole, and a through hole is opened on the shell at a position corresponding to the threaded hole, and the threaded head of the flexible shaft pull wire passes through the through hole and the threaded hole for detachable connection.

[0006] As a further improvement of the present invention, one side of the knob is provided with a raised lifting indicator arrow and words for indicating the lifting rotation direction; the other side of the knob is provided with a card slot, and the end of the horizontal axis is provided as a card head for snap-connecting the knob and the horizontal axis.

[0007] As a further improvement of the present invention, the shell is provided with two symmetrically distributed screw holes for fixing the shell to a fixing piece near the seat.

[0008] As a further improvement of the present invention, the shell is made of nylon and has a waterproof effect.

[0009] Compared to existing technologies, the lift control provided by this utility model uses a knob instead of a hand crank, saving space. The radius of the drive gear is much smaller than that of the intermediate gear, changing the speed ratio and force, making operation easier and more labor-saving. The intermediate gear has half a circle of small teeth and half a circle of large teeth, which enables the rack travel to have an automatic limit function. In short, this utility model is not only simple in structure, but also easy and labor-saving to operate, providing more convenient service for operators while also saving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the appearance diagram of the lifting control controller of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the lifting control controller of the utility model;

[0012] Figure 3 This is a left side view of the lifting control controller of the utility model;

[0013] Figure 4 This is a top view of the lifting control controller of the utility model.

[0014] Description of the accompanying figures: 1 is a housing, 2 is a driving gear, 3 is an intermediate gear, 4 is a rack, and 5 is a knob. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] like Figures 1 to 4 As shown, the utility model provides a lifting operation controller, including a hollow shell 1, which accommodates a driving gear 2, an intermediate gear 3 and a rack 4; an integrally formed horizontal axis is provided on the center of one side of the driving gear 2, and the end of the horizontal axis extends out of the shell 1 and is connected to the knob 5; on the gear ring of the intermediate gear 3, half a circle is large teeth and half a circle is small teeth, half a circle of small teeth is meshed with the driving gear 2, and half a circle of large teeth is meshed with the rack 4; the end of the rack 4 is connected to the flexible shaft cable.

[0017] like Figure 1 and Figure 2 As shown, the utility model manually rotates the knob 5 to apply a force to the drive gear 2, driving the intermediate gear 3 engaged therewith, and driving the rack 4 engaged with the intermediate gear 3 to move horizontally, thereby realizing the control of the extension and contraction of the flexible shaft connected to the rack 4, and then promoting the tractor hydraulic multi-way valve to control the lifting of the agricultural implement. This design changes the speed ratio and force, making the operation simpler and more labor-saving, bringing more convenient service to the operator, and also saving space.

[0018] like Figure 1 、 Figure 2 and Figure 3As shown, the rack 4 has a threaded hole at least at one end, and a threaded hole can also be set at each end, and a through hole is opened at the position corresponding to the threaded hole on the shell 1, and the threaded head of the flexible shaft pull wire passes through the through hole and the threaded hole for detachable connection; the same through hole can also be set on the shell 1 opposite to the through hole position. The design of through holes on both sides allows the flexible shaft to pass through the through hole from any side and be bolted to the rack 4. During installation, the lifting control controller can be bolted to the fixing part on the left or right side of the seat, and the flexible shaft passes through the through hole from the side that is more convenient to connect and is bolted to the rack 4, so that the lifting control controller can meet the needs of people who are accustomed to operating with different hands, and the through hole on the side where the flexible shaft is not connected can be sealed with a plug.

[0019] like Figure 1 、 Figure 3 and Figure 4 As shown, the knob 5 has a raised lifting indicator arrow and words on one side, which are used to indicate the lifting rotation direction to prevent misoperation and have a higher safety factor; the other side of the knob 5 is provided with a card slot, and the end of the horizontal axis is provided with a card head, which is used to snap-connect the knob 5 and the horizontal axis. This structure is more secure; the curved surface of the knob 5 can be a striped or striped flower-shaped concave-convex curved surface, which has an anti-slip effect and is convenient for operation; the material of the knob 5 can be nylon, and the shape, texture, wording, etc. of the knob 5 mentioned above can be made by injection molding.

[0020] The shell 1 is made of plastic, which can be PP, PE, PVC, nylon, etc., preferably nylon, which is waterproof, has high strength, good toughness, and strong fatigue resistance. It can protect the main components inside the shell 1 from being corroded by water, thereby affecting the use of the lifting control controller and shortening its life.

[0021] In a preferred embodiment, the shell 1, rack 4 and knob 5 are made of nylon, which saves material costs while ensuring functionality; the lifting control controller is flexible to operate without sticking, all rotating parts can be evenly coated with grease, and there are no defects such as abnormal noise, bumps, and excessive gaps after assembly.

[0022] As can be seen from the above structure, compared with the prior art, the lifting control controller provided by the present invention uses a knob 5 instead of a hand crank, saving space. The radius of the drive gear 2 is much smaller than that of the intermediate gear 3, changing the speed ratio and force, making operation easier and more labor-saving. The intermediate gear 3 has a half-circle of small teeth and a half-circle of large teeth, which enables the rack 4 to have an automatic travel limit function. The housing 1 is made of nylon and is waterproof, which can protect its main internal components from water corrosion and shortening its service life. In short, the present invention is not only simple in structure, but also easy and labor-saving to operate, providing more convenient service for operators, while also saving space.

[0023] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A lifting control controller, characterized in that: The invention comprises a hollow shell (1), wherein the shell (1) accommodates a driving gear (2), an intermediate gear (3) and a rack (4); an integrally formed horizontal shaft is provided at the center of one side of the driving gear (2), the end of the horizontal shaft extends out of the shell (1) and is connected to a knob (5); on the gear ring of the intermediate gear (3), half a circle is large teeth and half a circle is small teeth, half a circle of small teeth is meshed and connected with the driving gear (2), and half a circle of large teeth is meshed and connected with the rack (4); the end of the rack (4) is connected to a flexible shaft cable.

2. The lifting control device according to claim 1, characterized in that: At least one end of the rack (4) is provided with a threaded hole, and a through hole is opened on the housing (1) at a position corresponding to the threaded hole, and the threaded head of the flexible shaft cable passes through the through hole and is detachably connected to the threaded hole.

3. The lifting control according to claim 2, characterized in that: One side of the knob (5) is provided with a raised lifting indicator arrow and words for indicating the lifting rotation direction.

4. The lifting control controller according to claim 3, characterized in that: The shell (1) is provided with two symmetrically distributed screw holes for fixing the shell (1) to a fixing piece near the seat.

5. The lifting control device according to claim 4, characterized in that: The shell (1) is made of nylon.

Images