A spike harrow suitable for stony ground

Abstract

The utility model provides a kind of suitable for many stone blocks farmland's spike harrow, including handle, detachably provided with mounting seat on handle;Mounting seat is spaced apart and is provided with several installation channels, and each installation channel is inserted with spike tooth, and the inner diameter of installation channel towards land side is less than the inner diameter of installation channel side away from land, and the inner diameter of installation channel side away from land is threadedly connected with limiting cap, and limiting cap is used to limit spike tooth to separate from installation channel.The utility model can make each spike tooth replaceable, facilitate maintenance, and then can prolong the service life of spike harrow.

Description

Technical Field

[0001] This utility model belongs to the technical field of agricultural equipment, and specifically relates to a rake suitable for cultivating land with many stones. Background Technology

[0002] In agricultural production and horticulture, the rake is a commonly used agricultural tool. However, in fields with a lot of gravel, using a regular rake often results in hitting the stones, and prolonged use makes the rake prone to deformation and breakage, seriously affecting its service life and increasing the user's costs and labor intensity.

[0003] In addition, when the rake hits or raks rocks, it can cause a large impact on the connection between the rake nails and the rake handle, which can lead to deformation and affect the service life of the rake. Utility Model Content

[0004] This invention provides a nail harrow suitable for stony farmland, to solve the problem of the short service life of existing nail harrows in fields with many stones.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A rake suitable for stony tillage includes a handle on which a mounting base is detachably mounted;

[0007] The mounting base is provided with a plurality of mounting channels spaced apart, and a nail tooth is inserted into each mounting channel. The inner diameter of the mounting channel facing the ground is smaller than the inner diameter of the mounting channel facing away from the ground, and a limit cap is threadedly connected to the mounting channel facing away from the ground. The limit cap is used to prevent the nail tooth from disengaging from the mounting channel.

[0008] Furthermore, the nail tooth includes an integrally formed tooth head and a limiting ball, the limiting ball being accommodated within the installation channel, and the diameter of the limiting ball being larger than the minimum inner diameter of the installation channel facing the land.

[0009] The tooth extends out of the mounting channel to perform digging.

[0010] Furthermore, the installation channel includes a limiting section, a reducing section, and a shock-absorbing section arranged sequentially. The limiting cap is threadedly installed in the limiting section and abuts against the limiting ball. The limiting ball is accommodated in the reducing section. The shock-absorbing section is used to support the tooth head.

[0011] Furthermore, the nail tooth also includes a stabilizing column disposed between the tooth head and the limiting ball, the stabilizing column being located within the shock-absorbing section, and both the stabilizing column and the shock-absorbing section being cylindrical;

[0012] A support layer is provided between the stabilizing column and the inner wall of the seismic isolation section, and the support layer is in close contact with both the outer wall of the stabilizing column and the inner wall of the seismic isolation section.

[0013] Furthermore, the support layer is preformed from EPDM rubber or formed by multiple layers of woven fabric wrapped around the outside of the stabilizing column.

[0014] Furthermore, the mounting base includes a mounting plate and a mounting sleeve, the mounting channel is formed on the mounting plate, and the handle is inserted into the mounting sleeve;

[0015] Multiple sets of threaded connection assemblies are provided at intervals along the handle axis between the handle and the mounting sleeve, and the threaded connection assemblies pass through the handle and the mounting sleeve.

[0016] Furthermore, multiple threaded connection assemblies are mounted around different radial axes of the mounting sleeve, and at least two threaded connection assemblies have mounting axes perpendicular to each other.

[0017] Furthermore, the threaded connection assembly includes a bolt insert and a nut, and the mounting sleeve has an anchoring plane formed on its sidewall for the nut and the head of the bolt insert to abut against each other;

[0018] An isolation layer is provided between the nut and the anchoring plane, and between the cap of the bolt plug and the anchoring plane.

[0019] Furthermore, the side of the handle away from the mounting base includes an auxiliary short post, the axis of which is perpendicular to the axis of the handle.

[0020] Furthermore, the side wall of the handle away from the mounting base is provided with multiple limiting recesses at intervals, the handle is covered with a rubber sleeve, the inner wall of the rubber sleeve is provided with rubber protrusions, and the rubber protrusions are engaged in the limiting recesses.

[0021] The present invention can achieve the following beneficial effects:

[0022] 1. This application provides an installation channel on the mounting base, through which the nail teeth pass to achieve installation, making the nail teeth detachable from the mounting base. Additionally, a limiting cap restricts the position of the nail teeth. Using this application's nail rake for hoeing facilitates the replacement of worn nail teeth. 2. This application connects the mounting base and handle via multiple threaded connection components along different mounting axes, enhancing the connection strength between the mounting base and handle, preventing them from easily detaching during hoeing. Furthermore, the two components are detachably connected, allowing for individual replacement if one component is damaged.

[0023] 3. The nail teeth are equipped with limit balls to allow for movable installation with the mounting base. A support layer is set between the nail teeth and the side wall of the installation channel to prevent the nail teeth from deforming and shaking when digging soft soil. Only when the nail teeth collide with stones will they easily undergo slight displacement, thus reducing the impact force of the nail teeth colliding with stones. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the overall structure of a nail harrow suitable for cultivating land with many stones according to this utility model;

[0026] Figure 2 This is an exploded structural diagram of a nail rake suitable for rocky farmland according to the present invention;

[0027] Figure 3 This is a cross-sectional view of the nail tooth mounting area of ​​this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Handle; 11. Limiting concave ring; 2. Mounting base; 21. Mounting channel; 211. Limiting section; 212. Reducing diameter section; 213. Vibration damping section; 22. Mounting plate; 23. Mounting sleeve; 231. Anchoring plane; 3. Nail tooth; 31. Tooth head; 32. Limiting ball; 33. Stabilizing column; 4. Limiting cap; 5. Threaded connection assembly; 6. Auxiliary short column; 7. Rubber sleeve; 8. Support layer. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0031] Example 1

[0032] like Figures 1 to 3 As shown, a rake suitable for stony farmland includes a handle 1 and a mounting base 2 detachably mounted on the handle 1. Several spike teeth 3 are detachably mounted on the mounting base 2, which can dig the land.

[0033] Specifically, the mounting base 2 includes an integrally formed mounting plate 22 and a mounting sleeve 23. The mounting plate 22 has several mounting channels 21 spaced apart, and each mounting channel 21 has a nail tooth 3. The mounting sleeve 23 is used for inserting the handle 1 to realize a detachable connection between the mounting sleeve 23 and the handle 1.

[0034] The installation channel 21 includes a limiting section 211, a reducing section 212, and a shock-absorbing section 213 arranged sequentially. The shock-absorbing section 213 is cylindrical and its inner diameter is smaller than that of the reducing section 212 and the limiting section 211. The inner wall of the limiting section 211 is provided with a threaded section, and a limiting cap 4 is installed on the internal thread of the limiting section 211. The limiting cap 4 can prevent the nail tooth 3 from disengaging from the mounting base 2, thereby realizing the installation of the nail tooth 3. The surface of the limiting cap 4 is integrally provided with a protruding ridge, which is used for the user to grip and thus facilitates the user to twist.

[0035] The spike tooth 3 includes a tooth head 31, a stabilizing post 33, and a limiting ball 32 arranged sequentially. The tooth head 31, stabilizing post 33, and limiting ball 32 are integrally formed. The limiting ball 32 is accommodated within the reduced diameter section 212, and the diameter of the limiting ball 32 is larger than the inner diameter of the shock-absorbing section 213. The stabilizing post 33 is located within the shock-absorbing section 213, and there is a gap between the stabilizing post 33 and the inner wall of the shock-absorbing section 213, allowing the spike tooth 3 to rotate relative to the mounting base 2, thus providing the spike tooth 3 with room for movement. The tooth head 31 extends out of the mounting channel 21 for digging.

[0036] The stabilizing column 33 is also cylindrical. A support layer 8 is installed in the gap between the periphery of the stabilizing column 33 and the inner wall of the shock-absorbing section 213. The support layer 8 is in close contact with both the outer wall of the stabilizing column 33 and the inner wall of the shock-absorbing section 213. The support layer 8 has high rigidity, which can effectively support the nail teeth 3, keeping them fixed relative to the mounting base 2. At the same time, the support layer 8 also has some elasticity, allowing the nail teeth 3 to deform adaptively when impacted by stones, reducing the force of the impact and extending the service life of the nail teeth 3. Specifically, the support layer 8 can be pre-formed from EPDM rubber or formed by winding multiple layers of woven fabric, thus providing both strong support and a certain degree of elasticity.

[0037] It should be noted that the rake designed in this application is for leveling fields, not for clearing wasteland. Typically, a rotary tiller is used to initially till the field, followed by leveling with a rake. Therefore, the support layer 8 is sufficient for leveling and weeding. Rake damage is often caused by strong impacts with hard stones. Using the rake of this application can reduce the impact between the spike teeth 3 and the stones, extending the service life of the spike teeth 3 and facilitating individual replacement of the spike teeth 3, thus saving costs.

[0038] Furthermore, the inner diameter of the reduced-diameter section 212 is larger than that of the shock-absorbing section 213, resulting in a transition platform at the junction of the reduced-diameter section 212 and the shock-absorbing section 213. Positioning the support layer 8 on this transition platform prevents it from detaching from the mounting base 2. The limiting ball 32 is housed within the reduced-diameter section 212, and its diameter is smaller than the inner diameter of the reduced-diameter section 212, thus providing space for its movement. After the tooth head 31 and the limiting cap 4 are installed, the top of the limiting ball 32 abuts against the plane of the limiting cap 4, and its bottom abuts against the lower platform of the reduced-diameter section 212. Simultaneously, the nail tooth 3 is limited and supported by the support layer 8, satisfying the positional limitation of the nail tooth 3 during daily use. Only when the nail tooth 3 impacts a stone, causing the support layer 8 to deform, can the limiting ball 32 have room to move within the reduced-diameter section 212.

[0039] Example 2

[0040] Based on Embodiment 1, Embodiment 2 is further improved by providing multiple sets of threaded connection components 5 between the handle 1 and the mounting sleeve 23. The threaded connection components 5 enable a more secure and detachable connection between the handle 1 and the mounting sleeve 23, which solves the problem that the handle 1 and the mounting base 2 are easily separated during daily use of the rake.

[0041] The threaded connection assembly 5 includes a bolt insert and a nut. The bolt insert passes through the handle 1 and the mounting base 2, and the nut is then tightened for installation. It should be noted that the bolt insert is not threadedly connected to the mounting sleeve 23 and the handle 1. The mounting sleeve 23 has an anchoring plane 231 on its side wall for the nut and bolt insert head to abut against each other, allowing the nut to be tightened more securely. Furthermore, isolation pads are provided between the nut and the anchoring plane 231, and between the bolt insert head and the anchoring plane 231. These isolation pads can be a relatively rough fabric, which absorbs collisions and vibrations between the threaded connection assembly 5 and the mounting base 2, and also increases the friction between them.

[0042] Multiple sets of threaded connection assemblies 5 are spaced apart along the axial direction of the handle 1, and these multiple sets of threaded connection assemblies 5 are installed around different radial axes of the mounting sleeve 23. In a preferred embodiment, two sets of threaded connection assemblies 5 are provided, and the mounting axes of the two sets of threaded connection assemblies 5 are perpendicular to each other, so as to achieve a more stable installation between the handle 1 and the mounting sleeve 23.

[0043] Example 3

[0044] Based on Embodiment 1 or Embodiment 2, further optimization is made: the side of the handle 1 away from the mounting base 2 includes an auxiliary short post 6, the axis of which is perpendicular to the axis of the handle 1. The auxiliary short post 6 can assist the user in using the rake more effortfully in some situations, such as when turning over grain in front of the door to dry, by holding the auxiliary short post 6 and pulling the rake.

[0045] In addition, multiple limiting recessed rings 11 are spaced apart on the side wall of the end of the handle 1 away from the mounting base 2. A rubber sleeve 7 is provided over the handle 1, and the inner wall of the rubber sleeve 7 is provided with rubber protrusions. The rubber protrusions are engaged within the limiting recessed rings 11. The rubber sleeve 7 can reduce wear on the user's hands, making the user more comfortable to use. It should be noted that since the auxiliary short column 6 is usually used when applying less force, the rubber sleeve 7 does not need to cover the auxiliary short column 6.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rake suitable for stony farmland, characterized in that: Includes a handle (1), on which a mounting base (2) is detachably provided; The mounting base (2) is provided with a plurality of mounting channels (21) spaced apart. Each mounting channel (21) is filled with a nail tooth (3). The inner diameter of the mounting channel (21) facing the ground is smaller than the inner diameter of the mounting channel (21) away from the ground. The mounting channel (21) away from the ground is threadedly connected to a limit cap (4). The limit cap (4) is used to restrict the nail tooth (3) from disengaging from the mounting channel (21). The nail tooth (3) includes an integrally formed tooth head (31) and a limiting ball (32), the limiting ball (32) being accommodated within the installation channel (21), the diameter of the limiting ball (32) being larger than the minimum inner diameter of the installation channel (21) facing the land; The tooth (31) extends out of the mounting channel (21) to perform digging.

2. A rake suitable for stony farmland according to claim 1, characterized in that: The installation channel (21) includes a limiting section (211), a reducing section (212), and a shock-absorbing section (213) arranged in sequence. The limiting cap (4) is threaded into the limiting section (211) and abuts against the limiting ball (32). The limiting ball (32) is accommodated in the reducing section (212). The shock-absorbing section (213) is used to support the tooth (31).

3. A rake suitable for stony farmland according to claim 2, characterized in that: The nail tooth (3) also includes a stabilizing column (33) disposed between the tooth head (31) and the limiting ball (32). The stabilizing column (33) is located within the shock-absorbing section (213), and both the stabilizing column (33) and the shock-absorbing section (213) are cylindrical. A support layer (8) is provided between the stabilizing column (33) and the inner wall of the shock-absorbing section (213), and the support layer (8) is in close contact with both the outer wall of the stabilizing column (33) and the inner wall of the shock-absorbing section (213).

4. A rake suitable for stony farmland according to claim 3, characterized in that: The support layer (8) is preformed from EPDM rubber or formed by multiple layers of woven fabric wrapped around the outside of the stabilizing column (33).

5. A rake suitable for stony tillage according to claim 1, characterized in that: The mounting base (2) includes a mounting plate (22) and a mounting sleeve (23), the mounting channel (21) is opened on the mounting plate (22), and the handle (1) is inserted into the mounting sleeve (23); Multiple sets of threaded connection assemblies (5) are provided at intervals along the axis of the handle (1) between the handle (1) and the mounting sleeve (23), and the threaded connection assemblies (5) pass through the handle (1) and the mounting sleeve (23).

6. A rake suitable for stony tillage according to claim 5, characterized in that: Multiple threaded connection assemblies (5) are mounted around different radial axes of the mounting sleeve (23), and at least two threaded connection assemblies (5) have mounting axes perpendicular to each other.

7. A nail harrow suitable for stony tillage according to claim 5 or 6, characterized in that: The threaded connection assembly (5) includes a bolt insert and a nut, and the mounting sleeve (23) has an anchoring plane (231) formed on its sidewall for the head of the nut and the bolt insert to abut against each other. An isolation layer is provided between the nut and the anchoring plane (231), and between the cap of the bolt plug and the anchoring plane (231).

8. A rake suitable for stony tillage according to claim 1, characterized in that: The side of the handle (1) away from the mounting base (2) includes an auxiliary short post (6), the axis of which is perpendicular to the axis of the handle (1).

9. A rake suitable for stony tillage according to claim 1, characterized in that: The handle (1) has multiple limiting recessed rings (11) spaced apart on the side wall away from the mounting base (2). The handle (1) is covered with a rubber sleeve (7). The inner wall of the rubber sleeve (7) is provided with rubber protrusions. The rubber protrusions are engaged in the limiting recessed rings (11).

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