CN2191534Y - Flame weeder - Google Patents

Abstract

The utility model discloses a flame weeder for removing weeds in the field. The flame weeder is composed of two major parts connected together, a pressure vessel and a flame spray head. The flame spray head includes a shield, a preheating tube, an evaporation tube, a flame spray tube, a nozzle and other parts. The flame weeder has a simple structure, is easy to use, has a fast weeding speed, good effect and low cost, and is non-toxic to the human body and harmless to crops.

Description

The utility model relates to an agricultural implement for removing weeds.

For a long time, people have tried their best to get rid of the weeds in the fields. With the advancement of science and technology, although people have got rid of the heavy weeding methods of simply pulling by hand and shoveling with hoes, chemical herbicides have been used. However, the price of chemical herbicides is high, which exceeds the affordability of farmers, and the cost of weeding per mu reaches 30 yuan; secondly, the formulas of chemical herbicides are different, and the types of weeding are limited. All different types of weeds are completely removed, resulting in poor weeding effect. Moreover, chemical herbicides are chemicals, which have certain harm to the human body, and poisoning will occur if there is a slight negligence when spraying. At the same time, the long-term use of chemical herbicides will make the chemical components in the soil higher, resulting in the residues of chemical components in crops exceeding international standards.

The purpose of the utility model is to avoid the disadvantages of the above-mentioned prior art, and provide a flame weeder with simple structure, easy manufacture, convenient use, good weeding effect, non-toxic to human body and harmless to crops.

The purpose of this utility model is achieved through the following measures: the flame weeder is mainly formed by connecting the two major parts of the pressure vessel and the nozzle with a steel pipe and a high-pressure hose. Wherein the fire nozzle is composed of a shield, a preheating pipe, an evaporation pipe, a fire pipe and a nozzle. The lower end of the preheating pipe is connected with the tee joint pipe, the upper end is connected with the upper end of the evaporating pipe, and the lower end of the evaporating pipe is connected with the fire spray pipe. The flame nozzle is placed on the flame pipe.

The pressure in the pressure vessel of the utility model should be kept at 0.2-0.3Mpa.

Copper rods are housed in the preheating pipe in the fire nozzle of the utility model.

Its profile of the evaporation tube in the fire nozzle of the utility model can be in a spiral shape.

The descriptions of the attached drawings are as follows:

Fig. 1 is the outline structure diagram of the utility model.

Figure 2 is a structural diagram of the flame spray head.

The utility model will be described in further detail below in conjunction with the embodiments: the pressure vessel (1) is rolled and welded with a thin steel plate. An oil injection port (5), an air nozzle (4) and a pressure gauge joint (2) are welded on it, and the pressure gauge (3) is placed on the joint (2). The oil filler port (5) is fitted with an oil filler cap (6). The outlet (12) is also welded on the pressure vessel (1); fuel is added to the container (1) through the oil filling port (5), and the oil filling port cap (6) is tightened, and then injected from the gas nozzle (4) with an air pump 0.3Mpa air pressure, its air pressure size can learn from pressure gauge (3). A high-pressure hose (11) connects the outlet (12) of the pressure vessel (1) with the steel pipe (9) on the flame nozzle (10). And a switch (7) for adjusting the amount of oil and a handle (8) for easy operation are arranged at the tail end of the steel pipe (9). The steel pipe (9) on the fire nozzle (10) is welded together with the tee joint pipe (14), and the shield (15) with the air inlet is fixed on the tee joint pipe (14) by the nut (13). )superior. In addition, a copper rod (19) for increasing the preheating effect is installed in the preheating pipe (18); the lower end of the preheating pipe (18) is welded with the three-way joint pipe (14), and the upper end is connected with the spiral evaporation pipe ( 17) The upper end is welded. The lower end of the evaporation tube (17) is connected with the flame spray tube (21) through a lock nut (20). The nozzle (16) is directly fixed on the fire spray pipe (21) by threads. After the fuel is preheated and vaporized through the preheating tube, it can be rushed out of the nozzle for combustion with a relatively high pressure.

Compared with the prior art, the utility model has the following advantages: the flame weeder has a simple structure and is convenient to use, not only has a fast weeding speed and a good effect, but also can remove grass seeds and kill insect eggs. Prevent the reproduction of weeds and the occurrence of pests. At the same time, its weeding cost is low, only 6-10 yuan per mu, non-toxic to human body, and harmless to crops.

Claims (4)

1. A flame weeder composed of a pressure vessel (1) connected to a flame nozzle (10) by a high-pressure hose (11) and a steel pipe (9), characterized in that the flame nozzle (10) is formed by a shield (15 ), preheating pipe (18), evaporation pipe (17), fire spray pipe (21) and nozzle (16), the lower end of preheating pipe (18) is connected with tee joint pipe (14), and the upper end is connected with evaporation pipe The upper end of pipe (17) joins, and the lower end of evaporating pipe (17) joins with fire spray pipe (21), and nozzle (16) is placed on the fire spray pipe (21). 2. The flame weeder according to claim 1, characterized in that the pressure in the pressure vessel (1) should be kept at 0.2-0.3Mpa. 3. The flame weeder according to claim 1 or 2, characterized in that the flame nozzle (18) is equipped with a copper rod (19). 4. The flame weeder according to claim 3, characterized in that the shape of the evaporation tube (17) in the flame nozzle (10) can be spiral.

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