Protective device for agricultural operation machine

Abstract

The utility model discloses an agricultural operation machine protection device which comprises a machine base and a protection plate made of flexible materials, a fastening piece is connected between the protection plate and the machine base, the protection plate is provided with an installation hole used for being connected with the fastening piece, the fastening piece is connected with a pressing block which is matched with the machine base and clamps the protection plate, and the machine base is provided with a clamping groove. An auxiliary pressing piece used for pressing the protection plate is arranged between the pressing block and the machine base and located on the outer side of the mounting hole. According to the scheme, the problem that in the prior art, a protection device is prone to being torn and damaged is solved.

Description

Technical Field

[0001] This utility model relates to protective equipment for agricultural machinery, specifically a protective device for agricultural machinery. Background Technology

[0002] A protective device for agricultural machinery is a device installed between the cutting blade and the operator's operating position to prevent injury to the operator from foreign objects thrown out by the cutting blade.

[0003] Chinese patent document CN203708868U discloses a cutting and crushing device, including a guard plate hinged to the front end of the frame, which can effectively prevent foreign objects from splashing outwards during operation. However, this hinged installation method is prone to jamming at the hinge point, resulting in a loss of rotational flexibility. To avoid this problem, the guard plate is made of a flexible material, utilizing its deformation to buffer impacts and reduce noise. Fasteners, such as bolts or rivets, are used to connect and fix the guard plate to the frame at multiple points. However, after prolonged use, it has been found that the connection between the guard plate and the fasteners is prone to tearing, leading to damage and failure of the guard plate. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for agricultural machinery to solve the problem that protective devices in the prior art are prone to tearing and damage.

[0005] To achieve the above objectives, the basic solution of this utility model provides a protective device for an agricultural machine, including a base and a protective plate made of flexible material. Fasteners are connected between the protective plate and the base. The protective plate is provided with mounting holes for connecting the fasteners. A pressure block that cooperates with the base and clamps the protective plate is connected to the fasteners. An auxiliary clamping member for pressing the protective plate is provided between the pressure block and the base and outside the mounting holes.

[0006] The beneficial effects of this basic solution are as follows: by adopting this solution, the force on the protective plate at the mounting hole is reduced, thereby reducing the occurrence of the protective plate tearing at the mounting hole after long-term use or when subjected to impact, and thus improving the service life of the protective device.

[0007] Preferably, the auxiliary clamping component includes a protrusion on at least one of the following three components: a base, a pressure block, and a protective plate. This arrangement allows the pressure block to clamp the protective plate against the base; whether the protrusion is on the base, pressure block, or protective plate, it increases the compressive force on the protective plate outside the mounting hole, thus reducing the stress at the mounting hole. This simplifies the structure and reduces manufacturing costs. Placing the protrusion on the pressure block allows for unaltered designs of the base and protective plate, further reducing costs. For example, stamping can facilitate the protrusion's formation and improve the overall rigidity of the pressure block, enhancing structural reliability. Placing the protrusion on the protective plate leverages its flexible material and ease of processing, simplifying its fabrication and reducing costs.

[0008] Preferably, the height of the protrusion is proportional to the distance to the mounting hole. This arrangement helps to distribute the force more evenly when the protective plate is clamped, thereby further improving the service life of the protective plate.

[0009] Preferably, the protrusions and mounting holes are spaced apart from each other. This arrangement helps to reduce stress concentration at the mounting holes when the protective plate is clamped, and also makes the overall stress on the protective plate more balanced, thereby further improving the service life of the protective plate.

[0010] Preferably, the base is connected to a guide tube tangential to the bend root of the protective plate. This arrangement utilizes the supporting effect of the guide tube to increase the bending radius of the protective plate during bending, thereby reducing the risk of bending fatigue damage to the protective plate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an embodiment of a protective device for agricultural machinery according to the present invention;

[0012] Figure 2 for Figure 1 Exploded view;

[0013] Figure 3 This is a schematic diagram from another perspective of an embodiment of the protective device for agricultural machinery according to this utility model;

[0014] Figure 4 for Figure 1 A schematic diagram of the direction A in the middle;

[0015] Figure 5 for Figure 4 Exploded view;

[0016] Figure 6 for Figure 5 BB section view. Detailed Implementation

[0017] The following detailed description illustrates the specific implementation method:

[0018] The reference numerals in the accompanying drawings include: base 1, fastener 2, pressure block 3, protective plate 4, guide tube 5, protrusion 6, and mounting hole 7.

[0019] The basic implementation examples are as follows: Figures 1 to 6 The image shows a protective device for an agricultural work machine, comprising a base 1 and a protective plate 4 made of flexible material. In this embodiment, the protective plate 4 is made of rubber. A fastener 2 connects the protective plate 4 to the base 1, and the protective plate 4 has mounting holes 7 for connecting the fastener 2. In this embodiment, the fastener 2 is preferably a bolt, which passes through the mounting holes 7 and connects to the base 1. A pressure block 3, which cooperates with the base 1 and clamps the protective plate 4, is connected to the fastener 2. An auxiliary clamping member for pressing the protective plate 4 is provided between the pressure block 3 and the base 1, located outside the mounting holes 7.

[0020] In this embodiment, the auxiliary clamping component includes a protrusion 6 on the pressure block 3 that protrudes towards the protective plate 4. When the pressure block 3 and the base 1 clamp the protective plate 4, the pressure block 3 clamps the protective plate 4 through the protrusion 6, thereby increasing the clamping force on the protective plate 4 outside the mounting hole 7 and reducing the force at the mounting hole 7. In this embodiment, the protrusion 6 is integrally formed with the pressure block 3; the protrusion height of the protrusion 6 is proportional to the distance to the mounting hole 7. In this embodiment, multiple mounting holes 7 and protrusions 6 are provided, and the protrusions 6 and mounting holes 7 are spaced apart from each other. The base 1 is connected to a guide tube 5 tangent to the bending root of the protective plate 4. The guide tube 5 supports the protective plate 4, increasing the bending radius of the protective plate 4 and reducing the risk of bending fatigue damage.

[0021] Of course, in other embodiments, the protrusion 6 can be provided on the base 1, or on the protective plate 4, or even any two of the three—the pressure block, the base, and the protective plate—can be provided with protrusions, or all three can be provided with protrusions.

[0022] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A protective device for an agricultural work machine, comprising a base and a protective plate made of flexible material, wherein fasteners are connected between the protective plate and the base, and the protective plate is provided with mounting holes for connecting the fasteners, characterized in that: The fastener is connected to a pressure block that cooperates with the base and clamps the protective plate. An auxiliary clamping component for pressing the protective plate is provided between the pressure block and the base and outside the mounting hole.

2. The protective device for agricultural machinery according to claim 1, characterized in that: The auxiliary clamping component includes a protrusion provided in at least one of the following three components: a base, a pressure block, and a protective plate.

3. The protective device for agricultural machinery according to claim 2, characterized in that: The height of the protrusion is proportional to the distance to the mounting hole.

4. A protective device for agricultural machinery according to claim 2 or 3, characterized in that: The protrusions and mounting holes are spaced apart from each other.

5. The protective device for agricultural machinery according to claim 4, characterized in that: The base is connected to a guide tube that is tangent to the bent root of the protective plate.

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