Sowing head of handheld fertilizer applicator

Abstract

The utility model provides a sowing head of a handheld fertilizer applicator, and belongs to the field of agricultural equipment. The problem how to avoid fertilizer blockage at a feeding pipe opening is solved. A sowing head of a handheld fertilizer applicator comprises a cover body and a bottom shell, the cover body is provided with a driving assembly, a baffle plate and a feeding port, the feeding port is used for conveying fertilizer particles into the sowing head, one end of the driving assembly extends towards the bottom shell to form an output shaft, and the sowing head is characterized in that the output shaft is provided with a shaft sleeve which is eccentrically arranged; the shaft sleeve is sleeved with the baffle plate, the baffle plate can swing around the output shaft in a reciprocating mode so as to adjust the feeding amount of fertilizer particles at the feeding port, and when the output shaft drives the rotary disc in the bottom shell to rotate, the output shaft drives the adjusting disc to generate vibration through the eccentrically-arranged shaft sleeve. The output shaft drives the baffle plate to vibrate, so that fertilizer blockage at the feeding pipe opening is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of agricultural equipment, especially relates to a hand -held fertilizer applicator's sowing head BACKGROUND

[0002] Fertilizer applicator as the equipment for spreading fertilizer, due to the small volume, light weight and the characteristics of simple operation, play an important role in modern agricultural production, relative to the traditional manual fertilization, using fertilizer applicator can reduce the physical consumption of farmers, and can reduce the pollution of soil and environment by chemical fertilizer, and through accurate fertilization improve crop yield, wherein, according to the fertilization mode can be divided into spray type fertilizer applicator, spreading type fertilizer applicator and drip irrigation type fertilizer applicator, as for spreading type fertilizer applicator, including the storage tank for storing fertilizer and the sowing head for spreading fertilizer, the user connects the storage tank and the sowing head through the hose, makes the fertilizer in the storage tank into the sowing head by the hose, and the fertilizer is scattered under the centrifugal action of motor and rotating disc, but since the hose directly connects the storage tank and the sowing head, the amount of sowing cannot be accurately controlled in the process of feeding.

[0003] The prior art provides a back type electric fertilizer applicator, including a storage tank, a fertilizer applicator body, the storage tank and the fertilizer applicator body are connected through a hose, and a flow control plate is arranged in the fertilizer applicator body, the flow control plate is rotated around the positioning rod as the center by pushing the fixed rod, and the degree of coincidence of the flow control plate and the opening at the bottom of the feeding cavity is controlled by the rotation amplitude of the flow control plate, so that the amount of fertilizer scattering is adjusted, the accurate control of the scattering amount is achieved, the fertilization efficiency is improved, and fertilizer waste is avoided, but since the flow control plate blocks the transmission pipe connected with the hose, the fertilizer particles entering the fertilizer applicator body from the storage tank are blocked in the fertilizer applicator, so that the fertilizer applicator cannot work normally, and the use experience is affected. SUMMARY

[0004] The utility model aims at the above problems existing in prior art, and provides a hand -held fertilizer applicator's sowing head, and the technical problem to be solved by the utility model is how to avoid the blockage of fertilizer at the inlet of the feeding pipe.

[0005] The utility model discloses a hand -held fertilizer applicator's sowing head, including the cover and bottom shell, be equipped with drive assembly, baffle and inlet on the cover, the inlet is used for conveying fertilizer particles to the sowing head, the drive assembly one end extends to the bottom shell and forms the output shaft, its characterized in that, be equipped with the eccentricity setting axle sleeve on the output shaft, the baffle is set on the axle sleeve, and can swing reciprocating around the output shaft to adjust the feeding amount of fertilizer particles at the inlet, when the output shaft drives the rotating disc in the bottom shell to rotate, the output shaft drives the adjusting disc to produce vibration through the eccentricity setting axle sleeve.

[0006] The application discloses a hand-held fertilizer applicator, wherein fertilizer enters the inner cavity of the fertilizer applicator through the feeding port at the rear end of the fertilizer applicator, and the fertilizer particles in the inner cavity are scattered by the centrifugal force generated by the driving assembly in the fertilizer applicator, and the scattering amount of the fertilizer at the feeding port is controlled by controlling the swing range of the shielding plate, so that the scattering accuracy is improved; on the basis, a shaft sleeve is arranged on the output shaft of the driving assembly, and the shaft sleeve is arranged eccentrically with the output shaft, so that the driving assembly drives the shielding plate to slightly vibrate transversely while driving the rotating disc to rotate, the fertilizer above the shielding plate is vibrated, and then falls into the rotating disc through the opening of the feeding port and is scattered, so that the feeding port of the fertilizer applicator is prevented from being blocked. It should be noted that the slight vibration of the application is that the shielding plate is driven by the eccentric shaft sleeve to move back and forth in a small distance.

[0007] In the fertilizer applicator, the cover is provided with a strip-shaped hole and an adjusting rod, the adjusting rod can move back and forth in the strip-shaped hole, the shielding plate is provided with a slide rod protruding upward, one end of the slide rod is sleeved in the adjusting rod, and the outer wall of the slide rod has a gap with the adjusting rod. By sleeving the slide rod in the adjusting rod and leaving a gap, the shielding plate can be adjusted while avoiding the influence of repeated vibration of the shielding plate on the cooperation between the adjusting rod and the cover.

[0008] In the fertilizer applicator, the adjusting rod comprises a mounting seat and a sleeve, the slide rod is sleeved in the sleeve, and the inner wall of the sleeve has a gap with the outer wall of the slide rod, and the mounting seat can drive the slide rod to move through the sleeve.

[0009] In the fertilizer applicator, a screw is arranged in the mounting seat, one end of the sleeve passes through the screw and is connected with the mounting seat, a spring is arranged between the head of the screw and the mounting seat, and the spring is used for clamping the mounting seat and the sleeve on the side wall of the strip-shaped hole. By clamping the mounting seat and the sleeve on the strip-shaped hole of the cover through the screw and the elastic member, the sleeve is prevented from falling and being damaged due to contact with the shielding plate.

[0010] In the fertilizer applicator, the shielding plate is further provided with a vibration rod, one end of the vibration rod extends upward into the feeding port and can be inserted into the fertilizer accumulated at the feeding port. By arranging the vibration rod on the shielding plate, the contact area of the accumulated fertilizer particles and the shielding plate is increased, and the anti-blocking effect is improved.

[0011] In the fertilizer applicator, one end of the feeding port is provided with a containing groove for containing the vibration rod.

[0012] In the fertilizer applicator, the gap exists between the two side walls of the limiting column and the limiting groove.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] 1、 this application through the baffle set in the eccentric shaft sleeve, make drive assembly in drive turntable rotation at the same time, drive baffle slight vibration, in turn drive the fertilizer accumulated in the inlet pipe pipe orifice produce vibration, and with the baffle and inlet pipe pipe orifice opening fall into the turntable, avoid the inlet pipe pipe orifice accumulation.

[0015] 2、 through the slide rod sleeve is set in the adjusting seat, and keep certain gap, reduce the influence of baffle repeated vibration to the sowing head cover body, improve the service life of sowing head. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional schematic diagram of the embodiment;

[0017] Figure 2 It is the explosion three-dimensional schematic diagram of the embodiment;

[0018] Figure 3 It is the side view sectional view schematic diagram of the embodiment;

[0019] Figure 4 It is the top view schematic diagram of the sowing head cover body;

[0020] In the drawing, 1, cover body;1a, drive assembly;1a1, motor;1a2, speed reducer;1a3, output shaft;1b, inlet pipe;1b1, containing groove;1c, handle;1d, strip hole;1e, limit rod;2, bottom shell;2a, turntable;3, baffle;3a, slide rod;3b, vibration rod;3c, limit groove;3d, square hole;4, shaft sleeve;5, adjusting rod;5a, mounting seat;5b, sleeve;5c, screw;5d, spring;6, storage tank;7, hose. DETAILED DESCRIPTION

[0021] The following is the specific embodiment of the utility model and combines the drawings, and the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0022] For example, Figure 1As shown, the present spreader includes a cover 1 and a bottom shell 2, the cover 1 and the bottom shell 2 are matched and form an opening for spreading fertilizer particles, the cover 1 is provided with a feeding pipe 1b, a handle 1c and a driving assembly 1a, the feeding pipe 1b, the handle 1c and the driving assembly 1a are sequentially arranged from rear to front, the rear side of the driving assembly 1a is provided with a clamping groove for installing the handle 1c, the front end of the feeding pipe 1b is provided with an adjusting rod 5, the adjusting rod 5 is located in a strip-shaped hole 1d on the cover 1 and can reciprocate on the strip-shaped hole 1d. In addition, a rotating disc 2a is arranged between the cover 1 and the bottom shell 2, the rotating disc 2a is used to drive the fertilizer particles entering from the feeding pipe 1b to rotate, and the fertilizer particles are thrown out by the centrifugal force of rotation.

[0023] It is worth mentioning that one end of the feeding pipe 1b of the present spreader is connected with the cavity composed of the cover 1 and the bottom shell 2, and the other end is connected with the storage tank 6 through the hose 7. The connection mode of the storage tank 6 and the spreader has been disclosed in the utility model patent with the patent number 202220499556X, and will not be described in detail here.

[0024] As shown in Figure 2 and Figure 3 , the cover 1 and the bottom shell 2 of the present spreader are further provided with a rotating disc 2a, a baffle 3 and a shaft sleeve 4, the baffle 3 and the shaft sleeve 4 are located between the rotating disc 2a and the output shaft 1a3, wherein the feeding pipe 1b is located at the rear end of the cover 1 and is arranged inclinedly relative to the rotating disc 2a, the baffle 3 is provided with a limiting groove 3c, a sliding rod 3a and a vibrating rod 3b, the limiting groove 3c is strip-shaped, the sliding rod 3a and the vibrating rod 3b both extend upward, the cover 1 is provided with an adjusting rod 5 located at the front end of the feeding pipe 1b, the adjusting rod 5 includes a mounting seat 5a and a sleeve 5b, one end of the sliding rod 3a is sleeved in the sleeve 5b and there is a certain gap between the sliding rod 3a and the inner side wall of the sleeve 5b. The driving assembly 1a includes a motor 1a1 and a speed reduction mechanism 1a2, the output shaft 1a3 on the speed reduction mechanism 1a2 penetrates through the shaft sleeve 4 and is connected with the rotating disc 2a, wherein the baffle 3 is sleeved outside the shaft sleeve 4. The motor 1a1 and the speed reduction mechanism 1a2 are used as driving devices only as an example to illustrate one driving mode of the present application, and other modes capable of driving the rotating disc 2a to rotate are not excluded, such as directly driving by the motor 1a1.

[0025] It is worth mentioning that, as shown in Figure 3 , the mounting seat 5a is provided with a screw 5c and a spring 5d, one end of the sleeve 5b penetrates through the strip-shaped hole 1d, the screw 5c is threadedly connected with the end of the sleeve 5b through the mounting seat 5a, and the spring 5d is located between the nut of the screw 5c and the blocking portion of the mounting seat 5a.

[0026] As shown in Figure 4As shown, the cover 1 of the present application is provided with a shielding plate 3, a speed reduction mechanism 1a2 and an output shaft 1a3 on the side matched with the bottom shell 2, the shielding plate 3 is rotationally connected with a shaft sleeve 4 sleeved on the output shaft 1a3, the shaft sleeve 4 is eccentrically arranged with the rotating shaft, the shielding plate 3 is provided with a square hole 3d and a limiting groove 3c, the shaft sleeve 4 is located inside the square hole 3d and in contact with the side wall of the square hole 3d, the cover 1 is provided with a limiting rod 1e located in the limiting groove 3c, and a certain spacing exists between the two side walls of the limiting groove 3c and the limiting rod 1e. In addition, the discharge port of the feeding pipe 1b is provided with a containing groove 1b1 for containing the vibrating rod 3b.

[0027] The motor 1a1 located in the middle of the cover 1 and the speed reduction mechanism 1a2 are mainly used to drive the rotating disc 2a in the bottom shell 2 to rotate, so that the fertilizer particles from the feeding pipe 1b at the rear end of the spreading head fall into the inner cavity of the spreading head, and the fertilizer particles are scattered from the opening of the spreading head by the centrifugal force generated by the rotation of the rotating disc 2a. On this basis, in order to improve the precision of spreading fertilizer and avoid the problem of burning seedlings caused by over-spraying, the shielding plate 3 is arranged at the discharge port of the feeding pipe 1b, the adjusting rod 5 on the cover 1 is reciprocated on the strip-shaped hole 1d, thereby adjusting the opening and closing degree of the shielding plate 3 at the discharge port end, so as to control the amount of fertilizer particles falling on the rotating disc 2a, and the limiting groove 3c is arranged on the shielding plate 3, which is matched with the limiting rod 1e on the cover 1, so as to further limit the opening and closing degree. A plug-in handle 1c is arranged at the rear side of the driving motor 1a1, which is convenient for the user to hold and improves the use experience.

[0028] Wherein, since the hand-held fertilizer applicator adopts a back-carrying type storage tank 6 and is convenient for the user to operate by increasing the handle 1c, in order to avoid interference between the handle 1c and the feeding pipe 1b during use and improve the ergonomics of the fertilizer applicator, the feeding pipe 1b is arranged to be inclined relative to the rotating disc 2a, but after the feeding pipe 1b is arranged to be inclined, the fertilizer particles will be accumulated between the baffle 3 and the feeding pipe 1b due to the existence of the baffle 3, and then be blocked, in order to avoid the blocking of the fertilizer at the pipe opening of the feeding pipe 1b, a shaft sleeve 4 is arranged on the output shaft 1a3, the shaft center of the shaft sleeve 4 is offset from the shaft center of the output shaft 1a3, the shaft sleeve 4 can rotate around the shaft center of the output shaft 1a3, and the baffle 3 is sleeved on the shaft sleeve 4, when the output shaft 1a3 drives the shaft sleeve 4 to rotate, the shaft sleeve 4 abuts against the side wall of the square hole 3d on the baffle 3, and then drives the baffle 3 and the vibration rod 3b above the baffle 3 to produce a small range of transverse displacement, that is, the baffle 3 is slightly vibrated, indirectly drives the fertilizer particles above the baffle 3 to vibrate at the same frequency as the baffle 3, and makes the fertilizer particles fall into the rotating disc 2a from the opening of the feeding pipe 1b and the baffle 3, avoiding the blocking of the fertilizer accumulated at the discharge opening of the feeding pipe 1b. In order to avoid fertilizer leakage in the non-use state, an accommodating groove 1b1 is additionally arranged on the feeding pipe 1b.

[0029] It is worth mentioning that, in order to avoid the influence of the baffle 3 on the service life of the adjusting structure during repeated vibration, a gap is left between the sleeve 5b in the adjusting rod 5 and the sliding rod 3a in the baffle 3, and a gap is also arranged between the limiting rod 1e and the limiting groove 3c of the baffle 3, avoiding the repeated collision between the limiting rod 1e, the sliding rod 3a and the sleeve 5b during the transverse displacement of the baffle 3, and causing the fracture.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0031] Although the terms such as 1, cover; 1a, drive assembly; 1a1, motor; 1a2, speed reduction mechanism; 1a3, output shaft; 1b, feed pipe; 1b1, containing groove; 1c, handle; 1d, strip-shaped hole; 2, bottom shell; 2a, rotating disc; 3, shielding plate; 3a, sliding rod; 3b, vibrating rod; 3c, limiting groove; 3d, square hole; 4, shaft sleeve; 5, adjusting rod; 5a, mounting seat; 5b, sleeve; 5c, screw; 5d, spring; 6, storage tank; 7, hose are used more in the specification, the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the utility model; it is contrary to the spirit of the utility model to interpret them as any kind of additional limitation.

Claims

1. A spreading head for a handheld fertilizer applicator, comprising a cover (1) and a bottom shell (2), wherein the cover (1) is provided with a drive assembly (1a), a baffle plate (3), and a feed pipe (1b), the feed pipe (1b) being used to feed fertilizer granules into the spreading head, and one end of the drive assembly (1a) extending toward the bottom shell (2) to form an output shaft (1a3), characterized in that, The output shaft (1a3) is provided with an eccentrically arranged bushing (4), and the baffle plate (3) is sleeved on the bushing (4) and can swing back and forth around the output shaft (1a3) to adjust the feed amount of fertilizer particles at the feed pipe (1b). When the output shaft (1a3) drives the turntable (2a) in the bottom shell (2) to rotate, the output shaft (1a3) drives the baffle plate (3) to vibrate slightly through the eccentrically arranged bushing (4).

2. The spreading head of the handheld fertilizer applicator according to claim 1, characterized in that, The cover (1) is provided with a strip hole (1d) and an adjusting rod (5). The adjusting rod (5) can move back and forth in the strip hole (1d). The baffle plate (3) is provided with a sliding rod (3a) that protrudes upward. One end of the sliding rod (3a) is sleeved in the adjusting rod (5), and there is a certain gap between the outer wall of the sliding rod (3a) and the adjusting rod (5).

3. The spreading head of the handheld fertilizer applicator according to claim 2, characterized in that, The adjusting rod (5) includes a mounting base (5a) and a sleeve (5b). The sliding rod (3a) is sleeved inside the sleeve, and there is a certain gap between the inner wall of the sleeve and the outer wall of the sliding rod (3a). The mounting base (5a) can drive the sliding rod (3a) to move through the sleeve.

4. The spreading head of the handheld fertilizer applicator according to claim 3, characterized in that, A screw (5c) is inserted inside the mounting base (5a). One end of the sleeve (5b) passes through and is connected to the mounting base (5a) by the screw (5c). A spring (5d) is provided between the head of the screw (5c) and the mounting base (5a). The spring (5d) is used to clamp the mounting base (5a) and the sleeve on the side wall of the strip hole (1d).

5. The spreading head of the handheld fertilizer applicator according to any one of claims 1 to 4, characterized in that, The shield (3) is also provided with a vibrating rod (3b), one end of which extends upward into the feed pipe (1b) and can be inserted into the fertilizer piled up at the feed pipe (1b).

6. The spreading head of the handheld fertilizer applicator according to claim 5, characterized in that, One end of the feed pipe (1b) is provided with a receiving groove (1b1) for accommodating the vibrating rod (3b).

7. The spreading head of the handheld fertilizer applicator according to any one of claims 1 to 4, characterized in that, The shield (3) is provided with a strip-shaped limiting groove (3c), and the cover (1) extends downward to form a limiting rod (1e), which is located in the limiting groove (3c).

8. The spreading head of the handheld fertilizer applicator according to claim 7, characterized in that, There is a gap between the limiting rod (1e) and the two side walls of the limiting groove (3c).

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