Fertilizer dispensing gun with fertilizer dispensing amount adjusting function and more stable connection

Abstract

A fertilizer application gun with a fertilizer application amount adjusting function and more stable in connection comprises a holding handle, a connecting pipe and a fertilizer application contact, the lower end of the holding handle is provided with an integrally-formed connector, and the connector is provided with a first connecting end connected with the connecting pipe in an inserted mode; the connector is further provided with a second connecting end inclined to the axis of the holding handle, and the fertilizer applying contact comprises a contact inner pipe, a contact outer sleeve arranged outside the contact inner pipe in a sliding and sleeving mode, a limiting screw ring screwed to the upper portion of the contact inner pipe through threads and a supporting spring elastically supported between the contact inner pipe and the contact outer sleeve. The upper end of the contact inner tube is in plug-in connection with the connecting tube, a plugging part is formed in the contact inner tube, a discharge hole is formed in the upper end of the plugging part, the contact outer sleeve comprises a main sleeve body and a screw cap screwed at the lower end of the main sleeve body through threads, and a discharge part matched with the discharge hole is formed on the main sleeve body; the parts of the fertilizer application gun are connected more stably, and the fertilizer application gun has a fertilizer application amount adjusting function and is more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of point fertilizer gun with point fertilizer quantity regulating function and more stable connection. BACKGROUND

[0002] Point fertilizer gun, or point fertilizer device, fertilizer applicator, is a kind of handheld instrument for improving fertilization efficiency by point fertilization near crops to avoid manual digging hole and dropping fertilizer one by one. The working principle of point fertilizer gun is relatively simple. By pressing, the fertilizer channel is opened, and fertilization is realized.

[0003] In the structure of the existing point fertilizer gun, a tee joint is arranged at the middle position of the gun body. The upper end of the tee joint is connected with the holding handle, the lower end is connected with the discharging pipe and the point fertilizer contact head at the bottom of the discharging pipe, and the other end of the tee joint is connected with the fertilizer bag through a hose. Because there are many plug-in connection points, the existing point fertilizer gun has the possibility of local falling off during use, affecting the fertilization efficiency. In addition, the existing point fertilizer contact head does not have the function of adjusting the point fertilizer quantity, which also needs to be further improved. SUMMARY

[0004] In view of the above problems, the utility model provides a kind of point fertilizer gun with point fertilizer quantity regulating function and more stable connection.

[0005] To achieve the above purpose, the utility model provides a kind of point fertilizer gun with point fertilizer quantity regulating function and more stable connection, which comprises a holding handle, a connecting pipe and a point fertilizer contact head. The lower end of the holding handle has an integrated connector. The connector has a first connection end for plug-in connection with the connecting pipe. The connector also has a second connection end inclined to the axis of the holding handle.

[0006] The point fertilizer contact head comprises a contact head inner pipe, a contact head outer sleeve slidably sleeved outside the contact head inner pipe, a limiting screw ring threadedly combined on the upper part of the contact head inner pipe, and a supporting spring elastically supported between the contact head inner pipe and the contact head outer sleeve. The upper end of the contact head inner pipe is plug-in connected with the connecting pipe. A plugging part is formed in the contact head inner pipe, and a discharging hole is formed at the upper end of the plugging part. The contact head outer sleeve comprises a main sleeve and a screw cap threadedly combined on the lower end of the main sleeve. A discharging part matched with the discharging hole is formed on the main sleeve.

[0007] Further, the upper end of the holding handle is a holding part. A plurality of air holes are formed on the pipe wall near the holding part of the holding handle.

[0008] Further, the air holes are long waist-shaped, and a plurality of air holes are circumferentially and uniformly distributed along the axis of the holding handle.

[0009] Further, the included angle between the second connecting end and the axis of the holding handle is forty-five degrees, and the second connecting end is connected with the fertilizer back bag through a hose.

[0010] Further, the length of the connecting pipe is 250mm, 300mm or 350mm, so as to meet the needs of users with different heights.

[0011] Further, the upper surface of the plugging part is a slope, one end of the supporting spring is in abutment with the lower surface of the plugging part, and the other end of the supporting spring is in abutment with the upper surface of the screw cap.

[0012] Further, the screw cap is a flat bottom cap or a pointed bottom cap.

[0013] Further, the connecting pipe is connected with the connecting head and the contact inner pipe in an interference fit.

[0014] Further, a guide part is formed on the outer wall surface of the contact inner pipe, and the guide part guides the contact outer sleeve, so that the contact outer sleeve and the contact inner pipe only slide axially relative to each other.

[0015] Further, a step is formed on the contact inner pipe, and a necking part matched with the step is formed on the main sleeve body.

[0016] The utility model has the beneficial effects that:

[0017] 1. The lower end of the holding handle has an integrally formed connecting head, so that the number of plug-in connection points is reduced, the connection between parts is more stable, and the process of pressing the point fertilizer gun only makes the plug-in connection position more firm, and there is almost no possibility of falling off during use.

[0018] 2. The point fertilizer contact is limited in the uplink position of the contact outer sleeve by the limiting screw ring, so as to realize the opening adjustment of the discharge hole, that is, the point fertilizer amount adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the point fertilizer gun with the point fertilizer amount adjustment function and the stable connection;

[0020] Figure 2 It is a sectional view of the point fertilizer gun with the point fertilizer amount adjustment function and the stable connection;

[0021] Figure 3 It is an exploded view of the point fertilizer gun with the point fertilizer amount adjustment function and the stable connection;

[0022] Figure 4 It is a schematic view of another screw cap.

[0023] In the figure: 1, holding handle; 11, holding part; 12, air hole; 13, connecting head; 131, first connecting end; 132, second connecting end; 2, connecting pipe; 3, point fertilizer contact; 31, limiting screw ring; 32, contact inner pipe; 321, blocking part; 322, discharging hole; 323, guide part; 324, step; 33, contact outer sleeve; 331, main sleeve body; 3311, discharging part; 3312, necking part; 332, screw cap; 34, supporting spring. DETAILED DESCRIPTION

[0024] As Figures 1-4 shown in the figure, the utility model discloses a point fertilizer gun with point fertilizer quantity adjusting function and more stable connection, including holding handle 1, connecting pipe 2 and point fertilizer contact 3, the lower end of holding handle 1 has integrative connecting head 13, connecting head 13 has the first connecting end 131 with the insertion connection of connecting pipe 2, connecting head 13 still has the second connecting end 132 that sets up to the axial line of holding handle 1 is inclined, point fertilizer contact 3 includes contact inner pipe 32, the contact outer sleeve 33 of sliding sleeve setting in contact inner pipe 32 outside, the limiting screw ring 31 of being screwed on the upper portion of contact inner pipe 32, the supporting spring 34 of being elastically supported between contact inner pipe 32 and contact outer sleeve 33, the upper end of contact inner pipe 32 realizes insertion connection with connecting pipe 2, forms a blocking part 321 in contact inner pipe 32 and forms a discharging hole 322 in the upper end of blocking part 321, contact outer sleeve 33 includes main sleeve body 331 and screw cap 332 that are screwed in the lower end of main sleeve body 331, and main sleeve body 331 forms a discharging part 3311 that is matched with discharging hole 322, the upper end of holding handle 1 is holding part 11, and the pipe wall of holding handle 1 is processed with multiple air holes 12 close to holding part 11, air hole 12 is long waist shape, and multiple air holes 12 are circularly distributed along the axial line of holding handle 1, the included angle of second connecting end 132 and the axial line of holding handle 1 is forty-five degrees, and second connecting end 132 is connected with fertilizer back bag through hose, the length of connecting pipe 2 has three specifications of 250mm, 300mm, 350mm to satisfy the demand of users of different heights, the upper surface of blocking part 321 is inclined plane, one end of supporting spring 34 and the lower surface of blocking part 321 form the resistance, and the other end of supporting spring 34 and the upper surface of screw cap 332 form the resistance, screw cap 332 is flat bottom cover or pointed bottom cover, pointed bottom cover as Figure 4 shown in the figure can puncture mulching film and realize fertilization, and the interference connection between connecting pipe 2 and connecting head 13 and the interference connection between connecting pipe 2 and contact inner pipe 32, the outer wall surface of contact inner pipe 32 still forms guide part 323, guide part 323 realizes the guiding effect to contact outer sleeve 33, so that the relative sliding of both only occurs in the axial direction, and the step 324 is formed on contact inner pipe 32, and the necking part 3312 that is matched with step 324 is formed on main sleeve body 331.

[0025] The lower end of the holding handle has an integrated connector, which reduces the number of plug-in connection points, and the connection between parts is more stable. When the fertilizer gun is pressed, the plug-in connection position is only made more secure, and there is little possibility of falling during use. The fertilizer contact is limited in the upward position of the contact outer sleeve by the limiting screw ring, which adjusts the opening of the discharge hole, i.e. adjusts the amount of fertilizer.

[0026] Specifically, for the convenience of understanding the present application, the description is made in conjunction with the accompanying drawings;

[0027] See Figure 2 At this time, the discharge part 3311 of the main sleeve body 331 is misaligned with the discharge hole 322 of the contact inner tube 32, and the discharge hole 322 is completely in a blocked state. Pressing makes the contact outer sleeve 33 overcome the elastic force of the supporting spring 34 and slide upward, and the discharge part 3311 and the discharge hole 322 will overlap, achieving the discharge of fertilizer. The limiting screw ring 31 limits the upward position of the contact outer sleeve 33 at the upper part, and by adjusting the position of the limiting screw ring 31, the opening size of the discharge hole 322 can be controlled, achieving the adjustment of the amount of fertilizer.

[0028] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be changed and varied. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A point fertilizer gun with a point fertilizer amount adjusting function and a more stable connection, characterized by: It comprises a holding handle (1), a connecting pipe (2) and a point fertilizer contact (3), the lower end of the holding handle (1) is provided with an integrated connecting head (13), the connecting head (13) is provided with a first connecting end (131) for plug-in connection with the connecting pipe (2), and the connecting head (13) is further provided with a second connecting end (132) which is inclined to the axis of the holding handle (1); The point fertilizer contact (3) comprises a contact inner pipe (32), a contact outer sleeve (33) which is sleeved on the contact inner pipe (32), a limiting screw ring (31) which is screwed on the upper part of the contact inner pipe (32), and a supporting spring (34) which is elastically supported between the contact inner pipe (32) and the contact outer sleeve (33), the upper end of the contact inner pipe (32) is plug-in connected with the connecting pipe (2), a plugging part (321) is formed in the contact inner pipe (32), and a discharging hole (322) is formed in the upper end of the plugging part (321), the contact outer sleeve (33) comprises a main sleeve body (331) and a screw cap (332) which is screwed on the lower end of the main sleeve body (331), and the main sleeve body (331) is provided with a discharging part (3311) which matches the discharging hole (322).

2. The point fertilizer gun with point fertilizer amount adjustment function and stable connection according to claim 1, characterized in that: The upper end of the holding handle (1) is a holding part (11), and a plurality of air permeation holes (12) are formed in the pipe wall near the holding part (11).

3. The point fertilizer gun with point fertilizer amount adjustment function and stable connection according to claim 2, characterized in that: The air permeation holes (12) are long waist-shaped, and a plurality of the air permeation holes (12) are circumferentially and uniformly distributed along the axis of the holding handle (1).

4. The point fertilizer gun with point fertilizer amount adjustment function and stable connection according to claim 1, characterized in that: The included angle between the second connecting end (132) and the axis of the holding handle (1) is forty-five degrees, and the second connecting end (132) is connected with a fertilizer back bag through a hose.

5. The point fertilizer gun with the point fertilizer amount adjusting function and the more stable connection according to claim 1, characterized in that: The length of the connecting pipe (2) has three specifications of 250 mm, 300 mm and 350 mm to meet the needs of users with different heights.

6. The point fertilizer gun with the point fertilizer amount adjusting function and the more stable connection according to claim 1, characterized in that: The upper surface of the plugging part (321) is inclined, one end of the supporting spring (34) is in abutment with the lower surface of the plugging part (321), and the other end of the supporting spring (34) is in abutment with the upper surface of the screw cap (332).

7. The point fertilizer gun with the point fertilizer amount adjusting function and the more stable connection according to claim 6, characterized in that: The screw cap (332) is a flat bottom cap or a pointed bottom cap.

8. The point fertilizer gun with the point fertilizer amount adjusting function and the more stable connection according to claim 1, characterized in that: The connecting pipe (2) is interference-connected with the connecting head (13) and the contact inner pipe (32).

9. The point fertilizer gun with the point fertilizer amount adjusting function and the more stable connection according to claim 1, characterized in that: A guide part (323) is further formed on the outer wall surface of the contact inner pipe (32), the guide part (323) guides the contact outer sleeve (33) to only axially slide relative to each other.

10. The point fertilizer gun with the point fertilizer amount adjusting function and the more stable connection according to claim 9, characterized in that: A step (324) is further formed on the contact inner pipe (32), and a necked part (3312) which matches the step (324) is formed on the main sleeve body (331).

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