JPS5833802Y2 - Structure of spray barrel of fruit chemical spray machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in the structure of the spray barrel in a fruit chemical sprayer according to Patent Application Publication No. 42921 of December 18, 1970, which was invented by the inventor.

The injection barrel of the sprayer in the above invention has a structure in which a large number of holes are bored on the inner surface and the inner cavity injection barrel is formed by a series of spiral swirling ascending channels consisting of passages with a circular or rectangular cross section. Met.

However, with this structure, there is a problem in drilling a series of injection holes on the inner surface of the injection tube, and if holes are drilled in a straight pipe before the injection tube is formed, the injection tube will be formed in a spiral shape. Later on, the shape of the hole tended to change somewhat, and it was extremely difficult to drill the hole on the inner surface after the injection tube was formed.

Therefore, in order to solve the above-mentioned problems, this invention has an injection cylinder formed by an inner cylinder and an outer cylinder, and a spiral groove with a large number of injection holes continuously bored in the outer peripheral wall of the inner cylinder. Further, a spiral female thread is formed on the inner peripheral wall of the outer periphery to be screwed into the groove, and the inner cylinder and the outer cylinder are screwed together to form a series of swirling upward flow passages.

With this structure, a large number of injection holes can be easily drilled in advance at the bottom of the spiral groove on the outer circumferential wall of the inner cylinder, and the holes remain accurate even after being screwed together with the outer cylinder and are assembled. This is the structure of the injection tube that can maintain its shape.

An embodiment of the present invention will be described below based on the drawings.
Reference numeral 1 denotes a spray cylinder for storing fruits such as grapes and spraying a medicinal solution.The upper part of the cylinder is formed by an inner cylinder 2 and an outer cylinder 3, and the outer peripheral wall of the inner cylinder 2 has a large number of injection holes 4 as shown in the drawing. A continuous spiral groove 5 is provided, and the inner peripheral wall of the outer cylinder 3 is provided with an inner cylinder 2.
A spiral female thread 7 is formed which is screwed into the groove ridge 6 of the inner cylinder 2 and the outer cylinder 3. It has a structure that forms an ascending flow path 8.

In the drawings, H and S are handle sockets of the injection barrel 1, and P is a chemical liquid feeding pipe to the injection barrel 1.

In the injection tube formed as described above, when the chemical liquid is sent from the chemical liquid feed pipe P by a separately provided feeding pump, the chemical liquid rapidly swirls upward in the spiral ascending swirling channel 8 formed by the groove 5, The medicinal solution is sprayed from a large number of small-diameter injection holes 4 onto the fruit in the inner cavity of the injection cylinder.

In this way, according to the present invention, the injection cylinder is formed of an inner cylinder and an outer cylinder, and the structure is such that the two are screwed together, so a large number of injection holes are pre-filled in the bottom of the spiral groove provided on the outer peripheral wall of the inner cylinder. The hole is extremely easy to drill, and the injection envelope structure allows the hole to accurately maintain its shape without deforming in any way after assembly.

This structure makes the injection tube rigid, and the ascending swirling flow path can be configured to be narrow, so the flow resistance of the chemical solution is small, and it can be fed with a small hand pump or battery-powered pump. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially sectional front view, FIG. 2 is a plan view of the outer cylinder, and FIG. 3 is a partially sectional front view of the outer cylinder. 1... Injection cylinder, 2... Inner cylinder, 3...
... Outer cylinder, 4 ... Injection hole, 5 ... Groove, 6 ... Mizo crest, 7 ... Meneshi, 8 ...
...Swivel ascending flow path, H, S...Handle socket, P...Medicinal solution feed pipe.

Claims (1)

[Scope of utility model registration request] In a fruit spray machine in which a series of swirling ascending channels with a large number of injection holes drilled on the inner surface form an inner cavity injection tube 1, and a chemical solution is fed to the swirling ascending channel by a pump, the injection tube 1 is inserted into the inner cavity. It is formed by a cylinder 2 and an outer cylinder 3, and the outer peripheral wall of the inner cylinder 2 is provided with a spiral groove 5 in which a large number of injection holes 4 are continuously bored. A chemical liquid spray for fruit, characterized in that a spiral female thread 7 is formed to be screwed together with the groove 6 of the inner cylinder 2 and the outer cylinder 3, and a swirling upward flow path 8 is formed by screwing the inner cylinder 2 and the outer cylinder 3 together. The structure of the jet cylinder.