JPH08173009A - Apparatus for prevention intrusion of dog and cat into sandbox with air jet - Google Patents

Abstract

PURPOSE: To provide an apparatus for inhibiting the intrusion of dog and cat and prevent the troubles caused by the feces and urine of dog and cat by blowing air through air-blowing nozzles embedded around a sandbox of a school, nursery school, kindergarten, park, etc. CONSTITUTION: The intrusion of a dog or cat is sensed by a sensor 9 and the signal is transmitted to a controlling board 15 to start an air pump 16. Air is blown through an air-ejection nozzle 6 at a flow rate of 35m/m and a pressure of 0.5Kg by the start of the air pump 16 to inhibit the intrusion of the dog or cat. The air-pump is automatically stopped when the dog or cat is repelled out of the sensing range of the sensor.

Description

Detailed Description of the Invention

[Field of Industrial Application] [0001] The present invention prevents dogs and cats from invading sandboxes such as schools, nurseries, kindergartens, parks, etc., and contains Escherichia coli Salmonella contained in manure of dogs and cats in the sandboxes. This device is intended to prevent damage to the human body due to Toxoplasma gondii, roundworm eggs, and other harmful bacteria.

[Prior Art] Conventional methods include a method of spraying antibacterial chemicals in a sandbox or a method of sterilizing sand in a sandbox with a burner at a high temperature. The problem is that the antibacterial agent causes long-term contact with children, which causes side effects, and the high-temperature sterilization method using a burner may cause feces and urine in dogs and cats immediately after sterilization to maintain the bactericidal effect. Has the drawback of requiring frequent sterilization work, and neither method is hygienic because dogs and cats can freely enter the sandbox and excrete immediately after the work.

[Problems to be Solved by the Invention] The problem to be solved by the present invention is to provide a device for preventing the invasion of dogs and cats into the sandbox so that the excrement itself does not exist in the sandbox.

[Means for Solving the Problems] According to the present invention, an air injection nozzle is embedded around a sandbox, a sensor detects that a dog and a cat are approaching the sandbox, and a high-pressure and high-speed air is jetted to the dog-cat A device to prevent the intrusion itself

[Operation] The air jet nozzle in this device has a nozzle diameter of 2 m / m to 5 m / m, an air pressure of about 0.5 Kg, and an air jet speed of about 35 m / sec. Children can freely enter and leave the sandbox. There is no danger, either chemically or in terms of equipment structure.

[Example] Using a blower as a high-pressure, high-velocity air generator An air pipe from a blower to a sandbox air jet nozzle has a minimum diameter of 65 m / m to 100 m / m. When the sand surrounding the sandbox also has a downward slope toward the drawing, and sand enters the pipe from the air injection nozzle port, water is supplied from the water hose connection port on the drawing and inside the pipe. Discharge the sand to the drain outlet on the drawing

[Embodiment] -2 The injection hole of the air injection nozzle has a taper inside so that sand is not clogged as much as possible. The moving body detection sensor has an outer circumference of 3 m width as a sensing range, and only within that range. As shown in the drawing, rubber is attached to the upper part of the air injection nozzle to prevent children from being injured.

[Advantages of the Invention] Since the present invention uses harmless air for humans and animals, it is very safe for children to play in the sandbox. In this invention, dogs and cats cannot excrete at all in the sandbox, which is hygienic. This invention is safe and comfortable both aesthetically and for a long time. In this invention, there is no risk of side effect chronic toxicity as compared with the method of using medicines, and it is annoying to replenish or replace medicines regularly. Has the advantage of being released from

[0008]

[Brief description of drawings]

Drawing-1 ・ ・ ・ Sandbox Drawing-1 ・ ・ ・ Air injection nozzle mounting air piping Drawing-1 ・ ・ ・ Air piping cleaning port, manhole Drawing-1 ・ ・ ・ Drain discharge port, manhole Drawing-1・ ・ ・ Air supply piping Drawing-1 ・ ・ ・ Air injection nozzle Drawing-1 ・ ・ ・ Pipe cleaning water supply hose attachment port Drawing-1 ・ ・ ・ Movement detection sensor Drawing-1 ▲ 10 ▼ ・..Drain discharge valve in air pipe Drawing-1 ▲ 11 ▼ ・ ・ ・ Mobile sensor detection range Drawing-1 ▲ 12 ▼ ・ ・ ・ Mobile sensor signal cable Drawing-1 ▲ 13 ▼ ・ ・ ・ Control panel From power line to air pump Drawing-1 ▲ 14 ▼ ・ ・ ・ Primary side power line Drawing-1 ▲ 15 ▼ ・ ・ ・ Control panel Drawing-1 ▲ 16 ▼ ・ ・ ・ Air pump (blower) Drawing-1 2 of ▲ 17 ▼ ... Underground infiltration port for drain water Surface-4 8: Nozzle mouth safety measure rubber Drawing-4 ▲ 18 ▼ ・ ・ ・ Air injection discharge port Drawing-4 ▲ 19 ▼ ・ ・ ・ Safety measure rubber mounting rib [Simple explanation of entire system] The detection sensor 9 detects the invasion of dogs and cats, and sends the signal to the control panel ▲ 15 ▼ to activate the air pump ▲ 16 ▼. The air pump is activated and the air velocity of 35 m and the air pressure of 0.5 kg are ejected. The dogs and cats are prevented from entering, and when the dogs and cats escape the detection of the sensor, the air pump automatically stops.

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[Procedure amendment]

[Submission date] May 8, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is an overall plan view

FIG. 2 is a sectional view taken along line AA.

FIG. 3 is a sectional view taken along line BB of the air injection nozzle.

FIG. 4 Detailed view of air injection nozzle

[Explanation of Codes] 1 in Fig. 1 ... Sandbox 2 in Fig. 1 Air pipe for attaching air injection nozzle 3 in Fig. 1 Manhole for cleaning air pipe 4 in Fig. 1 Drain Discharge port manhole 5 in Fig. 1 ... Air supply pipe 6 in Fig. 1 ・ Air injection nozzle 7 in Fig. 1 ・ Port for cleaning water supply hose in pipe 9 in Fig 1 Body detection sensor 10 in FIG. 1 ... Drain discharge valve in air piping 11 in FIG. 1 ... Mobile sensor detection range 12 in FIG. 1 Mobile sensor signal cable 13 in FIG. 1 From control panel Power line to air pump 14 in Figure 1 Primary power line 15 in Figure 1 Control panel 16 in Figure 1 Air pump 17 in Figure 2 Underground penetration of drain discharge 18 of 2 ... Primary power line 19 of FIG. 2 ... Control panel 20 of FIG. Air pump 21 in FIG. 2 ... Secondary side power line 22 in FIG. 2 ... Moving object sensor signal cable 23 in FIG. 2 ... Air supply pipe 24 in FIG. 2 ... Air pipe for attaching air injection nozzle 25 of FIG. 2 ... Air injection nozzle 26 of FIG. 2 ... Drain discharge port manhole 27 of FIG. 2 ... Sensor for detecting moving object 28 of FIG. 2 Sandbox 29 of FIG. Water hose attachment port 30 in FIG. 2 ... Air pipe cleaning port manhole 31 in FIG. 3 ... Pipe cleaning water hose attachment port 32 in FIG. 3 ... Air pipe cleaning port manhole 33 in FIG. 3 ... Air Injection nozzle 34 in Fig. 3 ... Sandbox 35 in Fig. 3 ... Air pipe for attaching air injection nozzle 36 in Fig. 3 ... Underground penetration of drain discharge water 37 in Fig. 3 ... Drain discharge manhole Figure 3 38 ... move Body detection sensor 39 in FIG. 3 ... Air pump 40 in FIG. 3 ... Shows the detection range width of the detection sensor 41 in FIG. 3 ... Air pipe for attaching air injection nozzle 42 in FIG. 3 ... Air injection nozzle 43 in FIG. 4 ... Air injection / discharge port 44 in FIG. 4 ... Nozzle port safety measure rubber 45 in FIG. 4 ... Safety measure rubber mounting rib

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

FIG.

[Figure 4]

[Fig. 2]

[Figure 3]

Claims (2)

[Claims] 1. An air jet nozzle is embedded around a sandbox, and high-pressure, high-speed air is jetted from the nozzle. 2. A sensor for detecting a moving body around a sandbox.
Installed to detect the intrusion of dogs and cats and inject high-pressure air