JPH046502Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an injection nozzle fixing device for a slurry injector that allows the injection nozzle to be easily fixed in the set position when pouring into the soil and the set position when folded.

As a fertilization device for pastures and the like, there is a device called a slurry injector that injects viscous fertilizer (slurry) such as livestock manure into field soil while pulling a tank truck with an agricultural tractor or the like. This slurry injector applies fertilizer into the soil from the tip of the slurry injection nozzle via a pump connected to the PTO shaft of a tractor, etc., using the fertilizer in the tank. Generally, the nozzle is configured to be foldable so that it does not get caught on ridges or the like and be damaged or deformed.

However, the conventional model uses a pin insertion method, so when folding (or setting up for underground injection), first remove the retaining pin, pull out the retaining pin, and then rotate the nozzle mounting frame to remove the nozzle. This requires a number of troublesome operations, such as visually finding where the pin holes on the mounting frame match up with the pin holes on the aircraft frame, reinserting the locking pin, and inserting the retaining pin, and the nozzle frame is too strong. It was sturdy and quite heavy, making it difficult to work with.

The present invention was developed based on the above-mentioned circumstances, and its purpose is to make the injection nozzle foldable by inserting a pin into the aircraft frame via a mounting frame with flanges fixed at both ends. In the slurry injector, a groove-forming body is mounted on the mounting frame so as to be located on the front imaginary extension of the injection nozzle, and the groove-forming body is biased in the rotational fulcrum shaft and the protruding direction of the fulcrum shaft, respectively. A lever plate is provided which is integrally fitted with a pin for fixing the set position when pouring into the soil and a pin for fixing the set position when folding, and the lever plate is overlapped with the flange of the mounting frame on the machine frame, and the above-mentioned rotation fulcrum shaft is attached. The lever plate and the flange are rotatably supported on the fuselage frame, respectively, and the injection nozzle is inserted into the fuselage frame and the flange at a position rotated to the set position at the time of injection or folding. By providing a pin hole through which the pin for fixing the set position when the injection nozzle is folded or the pin for fixing the set position when folding is inserted, it is easy to insert and remove the pin and align the holes when folding the injection nozzle or setting the underground injection position. It is an object of the present invention to provide an injection nozzle fixing device for a slurry injector that can easily switch and fix the injection nozzle to each set position as required, without requiring complicated operations.

To explain the structure of the present invention with reference to an embodiment shown in the drawings, FIGS. 1 to 3 are a front view, a rear view, and a side view of a slurry injector A, respectively, showing the side frame 1a, the front A tank 2 for storing slurry is mounted on the fuselage frame 1 consisting of a frame 1b, a rear frame 1c, etc., and a slurry injection nozzle 3, a groove forming body 4 consisting of a coulter, and a tail wheel are mounted below the fuselage frame 1. 5th grade is provided. Although this slurry injector A is not shown, it is connected and towed behind an agricultural truck via a three-point linkage mechanism, and a pump 6 connected to the PTO shaft of the tractor pumps the slurry in the tank 2 from the nozzle 3 to the soil. Fertilizers are now being injected into the soil. 7 is a hose, 8 is a switching valve, 9 is a switching valve operating lever, and 10 is a stand.

11 is a nozzle mounting frame installed between the front frame 1b and the rear frame 1c, and has flange parts 11 at both ends.
a and 11b are fixed. The nozzle 3 and the groove forming body 4 located on the front imaginary extension line of the nozzle 3 are attached to the mounting frame 11 with the bolts 12,
13 and nuts 12a and 13a, and during slurry injection work, the machine is moved forward with the slurry injection nozzle 3 inserted into the soil. It is designed to travel through soft soil after four trenches have been dug. Reference numeral 14 denotes a lever plate, and a pivot shaft 15 is fixed to one side of the lever plate 14, and a pin 16 for fixing the set position when folding and a pin 16 for fixing the set position when pouring into the soil is attached to the side of the lever plate 14. A pin 17 is integrally attached to the lever plate 14 via guide pipes 16a and 17a fixed to the lever plate 14, respectively. These pins 16 and 17 are elastically biased in the direction in which the pivot shaft 15 protrudes by springs 16b and 17b interposed in pipes 16a and 17a, respectively. As shown in FIGS. 4 to 7, the lever plate 14 is placed between the rear frame 1c of the fuselage frame 1 and overlapped with the rear flange portion 11a of the mounting frame 11. The intervening lever plate 14 and the flange portion 11a are each rotatably supported on the rear frame 1c.

18, 18' are rotation bosses fixed to the flange portions 11a, 11b, and 19, 19 are retaining pins. In the figure, 16c and 17c are C for preventing spring removal.
Type retaining ring, 16d, 17d are spring receiver washers, 16e, 17e are stopper pins, 16f, 1
7f is a notched groove for preventing rotation, 16g and 17g are grips, and 20 is a rotation fulcrum shaft that rotatably connects the front flange portion 11b and the front frame 1b of the body frame 1.

21, 21... is the rear frame 1c of the aircraft frame 1
The pin holes 22, 22, . . . provided in the rear flange portion 11a are pin holes provided in the rear flange portion 11a. The front frame 1b is also provided with pin holes 21', 21', . .

By the way, by configuring the injection nozzle 3 in a bilaterally symmetrical shape and attaching the injection nozzle 3 to the same pin hole 21 on the fuselage frame 1 side by replacing the left and right sides, the gap between the slurry injection lines can be arbitrarily adjusted as shown in FIGS. 9 and 13. It can also be configured to be changeable. Note that, as shown in FIGS. 10 to 17, even if the mounting position of the nozzle mounting frame 11 to the body frame 1 is changed to change the slurry injection line spacing, the nozzle 3 can be folded and set as freely as described above.

In the configuration as described above, the injection nozzle 3 is now moved from the set position when pouring into the soil (see Figures 9 and 6) to the set position when folded (see Figures 8 and 7).
(see figure), first turn the grip 16g of the pin 16 for fixing the set position during folding to the position where the stopper pin 16e enters the notched groove 16f for preventing rotation, and then tighten the pin 17 for fixing the set position during injection using the spring. 17b and turn it to a position where the stopper pin 17e is removed from the notched groove 17f. Then, holding the nozzle 3 with one hand, rotate the nozzle mounting frame 11 inward about the rotation fulcrum shafts 15 and 20, and hold the grip 17g of the pin 17 for fixing the set position during injection, and hold the lever. When the plate 14 is rotated in the folding direction of the nozzle 3 from the position shown in FIG. 9 to the position shown in FIG. 1c and the flange portion 11a (see Fig. 7), the nozzle 3 and the groove forming body 4 are securely in the folded state shown in Fig. 8. Fixed.

Further, in order to return the nozzle 3 from the set position when folded to the set position when pouring into the soil, the same operation as described above can be performed by changing the respective fixing pins 16 and 17. In this case, the nozzle mounting frame 11
Of course, the direction of rotation of the lever plate 14 is opposite to that in the above case.

As described above, the present invention provides a slurry injector in which an injection nozzle is foldably attached to an aircraft frame by a pin insertion method via an attachment frame having flanges fixed at both ends, and the attachment frame includes: A groove-forming body is mounted on the front imaginary extension line of the injection nozzle, and a pin for fixing the set position during soil injection and a set position when folding are biased in the rotation fulcrum shaft and the protruding direction of the fulcrum shaft, respectively. A lever plate to which a position fixing pin is integrally attached is provided, and the lever plate is placed between the fuselage frame and overlapped with the flange of the mounting frame, and the lever plate and flange portion are attached to the fuselage frame via the rotation fulcrum shaft. Each is rotatably supported, and
The fuselage frame and flange have pin holes into which the pin for fixing the set position when pouring into the soil or the pin for fixing the set position when folding is inserted at the position where the injection nozzle is rotated to the set position when injecting or folding. This eliminates the need for complicated operations such as inserting and removing pins and aligning holes when folding the injection nozzle or setting the soil injection position, and it can be easily switched and fixed to each set position as necessary. ,
It is possible to greatly reduce the labor required when changing the set position of the nozzle, and at the same time as changing the set position of the injection nozzle, the groove-forming body can be switched between an active position in which it projects downward and a non-operative position in which it is rotated and retracted upward. There is an effect that can be done.

[Brief explanation of drawings]

Fig. 1 is a front view of a slurry injector equipped with the present invention, Fig. 2 is a rear view thereof, Fig. 3 is a side view thereof, and Figs. 4 and 5 are partially cutaway plan views of main parts. Fig. 6 is a sectional view of the main parts at the set position during soil injection, Fig. 7 is a sectional view of the main parts at the set position when folded, and Figs. 8 and 9 are the nozzles folded and set. Figures 10 and 11 are rear views showing a state where the slurry injection line is fixed at the position and the injection set position, respectively. Figures 12 and 13 are rear views of the left and right symmetrical nozzles installed with the left and right swapped, and Figures 14 and 15 show the slurry injection line with the left and right symmetrical nozzles swapped and the insertion position of the rotation fulcrum shaft changed. 16 and 17 are rear views with the nozzle installed only in the center of the body. In the figure, 1 is the fuselage frame, 3 is the injection nozzle, 4 is the groove forming body, 11 is the mounting frame, 11a, 11b are the flanges, 14 is the lever plate, 15 is the rotation fulcrum shaft, and 16 is the set position when the nozzle is folded. Fixing pin 17 is a pin for fixing the set position when pouring into the soil, 21 and 22 are pin holes.

Claims (1)

[Scope of utility model registration request] In a slurry injector in which an injection nozzle is foldably attached to an aircraft frame by a pin insertion method via a mounting frame with flanges fixed at both ends, the mounting frame has a mounting frame attached to the front imaginary extension line of the injection nozzle. The rotary fulcrum shaft, the pin for fixing the set position during soil pouring, and the pin for fixing the set position during folding, which are each biased in the protruding direction of the rotation fulcrum shaft, are integrated. A lever plate attached to the fuselage frame is provided, and the lever plate is overlapped with the flange of the mounting frame with the fuselage frame in between, and the lever plate and the flange portion are respectively pivotably supported relative to the fuselage frame via the rotation fulcrum shaft. At the same time, a pin for fixing the set position when pouring into the soil or a pin for fixing the set position when folding is inserted into the fuselage frame and flange at the position where the injection nozzle is rotated to the set position when injecting or folding. An injection nozzle fixing device for a slurry injector, characterized by having a pin hole.