JP2019024391A - Automatic chemical spraying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chemical liquid automatic spraying device which enables a trigger lever of a trigger type sprayer to be reliably and smoothly pulled by a cam mechanism, makes the whole device compact and has excellent handling property. SOLUTION: A chemical solution container 2 and a sprayer 3 attached to the mouth of the chemical solution container 2 are disposed in the front portion of the case 1, while a cam mechanism 4 and the cam mechanism 4 are disposed in the rear portion of the case 1. A drive mechanism 5 is provided, and the trigger lever 3a of the sprayer 3 and the cam mechanism 4 are connected by a tow frame 8, and a sensor 9 mounted on the front surface of the case 1 is used to detect a rat or the like. When detected, the cam mechanism 4 is actuated by the drive mechanism 5 and the pulling frame 8 is pulled backward, whereby the trigger lever 3a is pulled to spray a chemical solution such as a repellent from the spray nozzle 3b of the sprayer 3. It is configured to do. [Selection] Figure 2

Description

  The present invention relates to a chemical liquid automatic spraying apparatus that automatically sprays a chemical liquid such as a repellent when detecting the presence of a small animal such as a mouse.

  Conventionally, as a mouse repellent device, for example, as described in Patent Document 1, a container containing a repellent in a case, and a spray nozzle mounted on the upper end opening of the container so as to be movable up and down The nozzle pressing mechanism, a motor for driving the pressing mechanism, and a control circuit are provided, an infrared sensor is provided on the front surface of the case, and a discharge port is provided on the front surface of the case in front of the spray nozzle. When the mouse is detected by the infrared sensor, a signal is sent from the control circuit to activate the push-down mechanism by the motor, and the spray nozzle is pushed down to spray the repellent from the discharge port toward the mouse. There is known a repelling device that is configured to do this.

  Patent Document 2 describes an automatic chemical spraying apparatus that employs a cam mechanism as a mechanism for pushing down a spray nozzle of a container. This cam mechanism comprises a disc-shaped drive cam having an inclined cam surface continuously formed from the low level cam surface to the high level cam surface in the circumferential direction on the outer peripheral portion of the lower surface, and spraying the container with the inclined cam surface facing downward. The spray nozzle is pressed against the projecting portion of the spraying jig attached to the nozzle and rotated in the circumferential direction by this drive cam, and the spray nozzle is pushed down through the projecting portion on the inclined surface.

  On the other hand, as described in Patent Documents 1 and 2 above, as a spraying device for a chemical solution and the like, a push method for spraying by pushing down the spray nozzle downward, and a chemical solution from the spray nozzle by pulling a trigger lever There is a trigger type spraying device configured to spray the like.

  As a mechanism for automatically operating the trigger lever of such a trigger type spray device, as described in Patent Document 3, an eccentric cam is disposed in front of the trigger lever, and the cam surface of the eccentric cam is arranged. A mechanism is disclosed in which a chemical solution is sprayed by pushing the trigger lever in the pulling direction by contacting the front surface of the trigger lever and rotating the eccentric cam with a motor or the like.

JP-A-8-214760 JP 2005-81223 A Japanese Utility Model Publication No. 55-174967

  However, the trigger lever is automatically actuated by adopting a push method in which the chemical solution is automatically sprayed by pushing down the spray nozzle by the cam mechanism described in Patent Document 1 or Patent Document 2 in the trigger-type spray device. To this end, as described in Patent Document 3, a cam mechanism or a motor for driving the cam mechanism must be disposed on the front side of the trigger lever. It is difficult to arrange a cam mechanism, a motor, and a mechanism for transmitting the rotation of the motor to the cam mechanism together with a container containing a repellent in one case, such as a push type spray device, and a product. However, there is a problem that it becomes difficult to handle as the cost increases.

  The present invention has been made in view of such problems, and the object of the present invention is to trigger from the inside of the rear part of the case together with a chemical container containing a repellent etc. having a trigger type sprayer in the case. It is to provide a chemical liquid automatic spraying device which is capable of reliably and smoothly pulling a trigger lever of a spray sprayer by using a cam mechanism, which is compact in size and excellent in handleability.

  In order to achieve the above object, the chemical liquid automatic spraying apparatus of the present invention is attached to the case, the chemical liquid container accommodated in the front portion of the case, and the mouth of the chemical liquid container, as described in claim 1, A sprayer configured to spray the chemical solution in the chemical solution container from the spray nozzle by actuation of the trigger lever, a cam mechanism disposed in the rear portion of the case, and a front end portion connected to the trigger lever, A traction frame for connecting the end to the cam mechanism and pulling the trigger lever by the operation of the cam mechanism, a drive mechanism for the cam mechanism disposed in the rear part of the case, and a sensor mounted on the front surface of the case And a circuit board that operates the driving mechanism by detection of a sensor, and a discharge port that is opened on the front surface of the case and faces the spray nozzle forward. That.

  In the chemical liquid automatic spraying apparatus configured as described above, the invention according to claim 2 is such that the traction frame is formed in a flat rectangular frame shape, and the inner surface of the front frame portion is hooked on the front surface of the trigger lever. In addition, long protrusions are provided in the horizontal direction on the outer surfaces of both side frame parts, and these protrusions are respectively slidable in the horizontal guide grooves provided on the inner surfaces of both sides of the case. It is characterized by being combined.

  According to a third aspect of the present invention, the cam mechanism is disposed at a rear portion of the drive cam body rotated by the drive mechanism and the drive cam body, and connects the rear end portion of the trigger lever pulling frame. The drive cam body has a cam surface that is formed by alternately forming a crest and a valley that are curved in an arc on the outer periphery of the rotating member in the circumferential direction. On the other hand, the driven body is formed by alternately and continuously forming convex portions and concave portions curved in an arc shape engaged with the cam surface of the drive cam body on the outer peripheral portion of the front surface of the disk member in the circumferential direction. The rear end surface of the disk member of the follower is pressed by a spring and presses the surface provided with the convex portion and the concave portion toward the cam surface side of the drive cam body.

  According to a fourth aspect of the present invention, the drive mechanism includes a motor and a meshing gear train that transmits to the drive cam body while reducing the rotation of the rotation shaft of the motor.

  According to a fifth aspect of the present invention, the case body includes left and right case halves that are separably coupled to each other, and the case body has a front chamber in which a chemical solution container is replaceably disposed by a partition plate, a cam mechanism, and a drive mechanism A cam mechanism and a drive mechanism are attached to the upper rear surface of the partition plate, and the lower portion of the rear chamber is formed in a battery storage chamber as a power source. Features.

  According to the first aspect of the present invention, the chemical solution container and the sprayer attached to the chemical solution container are disposed in the front portion of the case, and the cam mechanism and the drive mechanism of the cam mechanism are disposed in the rear portion of the case. In addition, since the trigger lever and the cam mechanism of the sprayer are connected by a tow frame, the tow frame is arranged using the side space of the case, and therefore the sprayer is The towing frame can be arranged compactly together with the chemical solution container, the cam mechanism, and the drive mechanism of the cam mechanism, and an automatic spraying device excellent in handling can be provided.

  Further, the trigger lever traction frame has a front end portion connected to the trigger lever and a rear end portion connected to the cam mechanism. The sprayer can be operated by pulling the trigger lever reliably and smoothly while pulling with the pulling force.

  In addition, since a sensor is mounted on the front of the case and a discharge port that faces the spray nozzle of the sprayer facing forward is provided, when a small animal such as a rat is detected by the sensor, A certain amount of chemical solution can be accurately sprayed from the spray nozzle toward the small animal.

  According to the invention of claim 2, the traction frame is formed in a planar rectangular frame shape, and the inner surface of the front frame portion is engaged with the front surface of the trigger lever and the outer surface of the both side frame portions. Long ridges are provided in the horizontal direction, and these ridges are engaged with the horizontal guide grooves provided on the inner surfaces of both sides of the case so that they can slide back and forth. The trigger lever can be pulled in a stable operation by smoothly moving the traction frame along the horizontal guide groove while the traction force due to the operation of the cam mechanism is equally applied to the portion.

  According to the invention of claim 3, the cam mechanism includes a drive cam body having a cam surface formed by continuously forming a valley portion and a peak portion curved in an arc shape in the outer peripheral portion of the rear surface in the circumferential direction; A driven body provided with a convex portion and a concave portion that slide relative to the circumferential direction along the cam surface while contacting the cam surface of the drive cam body. Since the rear end of the working frame is connected, when the drive cam rotates, the crest portion of the drive cam curved in the arc shape extends from the concave portion of the follower in the arc shape toward the convex portion on the inclined surface. The driven body can be surely pushed backward while sliding and the chemical solution can be sprayed from the spray nozzle by pulling the trigger lever through the pulling frame by the backward movement of the driven body.

  At this time, the driven body can be largely retracted rearward by a distance corresponding to the sum of the height of the crest of the cam surface of the drive cam and the height of the convex portion of the driven body. Thus, the chemical spray amount from the spray nozzle can be increased.

  According to the fourth aspect of the present invention, the drive mechanism of the drive cam body includes the motor and the meshing gear train that transmits the drive cam body to the drive cam body while decelerating the rotation of the rotation shaft of the motor. A large rotational torque can be transmitted to the actuator, and the driven body can be retracted while the drive cam body is rotated reliably and smoothly at a predetermined speed, and the trigger lever can be operated.

  According to the fifth aspect of the present invention, the case body includes left and right case halves that are separably coupled to each other, and the case body includes a front chamber in which a chemical solution container is disposed by a partition plate, a cam mechanism, and a drive mechanism. The rear chamber is partitioned into a rear chamber and the lower portion of the rear chamber is formed in a battery storage chamber as a power source.Therefore, a chemical container equipped with a sprayer in the case body, a drive mechanism, a cam mechanism, etc. It can be stored and arranged in an orderly and compact manner, and the entire apparatus can be reduced in size, and the chemical container can be easily replaced and the maintenance and inspection of the drive mechanism and cam mechanism can be easily performed. I can do it.

The perspective view of a chemical | medical solution automatic spraying apparatus. The longitudinal side view. The partial exploded perspective view of an apparatus. Front view of drive mechanism The longitudinal section front view of the horizontal guide groove part which supported the both sides of the frame for traction. The cross-sectional view of a cam mechanism part. The vertical side view of the whole apparatus of the state which is spraying. The cross-sectional view of the cam mechanism portion.

  A specific embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, a chemical liquid automatic spraying apparatus includes a case 1, a chemical liquid container 2 housed in the front portion of the case 1, and a chemical liquid container 2. The sprayer 3 attached to the mouth, the cam mechanism 4 disposed in the rear part of the case 1, the drive mechanism 5 of the cam mechanism 4, the circuit board 6 for controlling the drive mechanism 5, and the battery. A power source 7 and a traction frame 8 that pulls the trigger lever 3a of the sprayer 3 by the operation of the cam mechanism 4 are provided. A sensor 9 for detection is attached, and a switch 10 is disposed on the upper surface of the case 1 to make the electronic circuit of the circuit board 6 operable.

  The case 1 includes left and right case halves 1a and 1b that are separably coupled to each other, and a bottom plate 1c is integrally provided at the lower ends of the case halves 1a and 1b. Furthermore, when the case halves 1a and 1b are combined with each other, the portion surrounded by the upper ends of the case halves 1a and 1b is open and the distance between the front end surfaces of the case halves 1a and 1b is constant from side to side The upper end opening is opened by the lid member 11 by engaging the peripheral edge of the lid member 11 that is attached to the opening edge of the upper end opening in the fitted state. Is closed.

  On the other hand, in the space between the front end surfaces of the case halves 1a and 1b, the lower end thereof is closed by the lower front wall piece 1d projecting upward from the front end of the bottom plate 1c, The upper end portion of the separation portion is closed by an upper end cover 12 removably attached to the upper end takeoff portion, and the central separation portion between the upper end cover 12 and the lower front wall piece 1d is connected to the central separation portion. It is closed by a vertically long rectangular central cover 13 that is detachably mounted.

  The upper end cover 12 is mounted with the sensor 9 exposed forward, and the upper end portion of the central cover 13 faces the spray nozzle 3b of the sprayer 3 toward the front. Thus, a discharge port 20 is provided in which the spray nozzle 3b is removably inserted.

  Further, the inside of the case body 1 includes a vertical lower partition plate 14b projecting from the lower half of the opposing wall surfaces of the case halves 1a and 1b toward the center of the case body 1, and the lower partition plate 14b. The lower end is fixed to and supported by the upper end of the upper partition plate 14a, and the upper end is fixed by a support piece protruding from the case halves 1a and 1b. The front chamber 15a is provided with a chemical container 2 fitted with the sprayer 3 at the upper end, while the cam mechanism 4 and the drive mechanism 5 are provided in the upper portion of the rear chamber 15b. The inside of the lower part of the rear chamber 15b is formed in a storage chamber 15b 'of the power source 7.

  The chemical solution container 2 is held by the support pieces 16a and 16b projecting from the lower facing surfaces of the case halves 1a and 1b with the bottom surface supported on the bottom plate 1c of the case 1. The sprayer 3 has a cap 17 that is fixed to the liquid container 2, and the cap 17 is detachably attached to the mouth of the liquid container 2. As is well known, the sprayer 3 is configured to suck up the liquid in the liquid container 2 and spray it from the spray nozzle 3b by a pump mechanism operated by the trigger lever 3a.

  The liquid container 2 to which the sprayer 3 is attached is provided in the front chamber 15a of the case 1 so that it can be exchanged by breaking the case halves 1a and 1b of the case 1 and separating them. .

  A vertical base plate 18 is attached to the upper partition plate 14a in a row with a small space behind from the upper partition plate 14a. The drive mechanism 5 is disposed on the upper side of the base plate 18, and a lower portion is provided. The cam mechanism 4 is disposed in the front.

  The cam mechanism 4 has a crest portion 4a1 and a trough portion 4a2 curved in a convex arc shape formed of a sine curve on a rear outer peripheral portion of a rotating member 51 formed of a large-diameter gear constituting a part of the drive mechanism 5 in the circumferential direction. The cam portions formed alternately and continuously project toward the rear, and the drive cam body 4a in which the end surfaces of these peak portions 4a1 and valley portions 4a2 are formed on the cam surface, and the disc member 4b ′ Convex portions 4b2 and convex portions 4b1 that are curved in an arc shape engaged with the crest portions 4a1 and the trough portions 4a2 that form the cam surface of the drive cam body 4a on the outer periphery of the front surface are alternately formed in the circumferential direction. And a driven body 4b formed by projecting the driven section rearward.

The number of the peak portions 4a1 and valley portions 4a2 of the drive cam body 4a and the convex portions 4b1 and concave portions 4b2 of the driven body 4b in the cam mechanism 4 is not particularly limited, but the peak portions 4a1 (convex portions 4b1) and Tanibe 4a2
Two (recesses 4b2) are preferably provided at intervals of 90 degrees in the circumferential direction. With this configuration, the entire driven body 4b can be moved rearward with a uniform pressing force by the rotation of the drive cam body 4a, and the amount of movement, that is, the pulling amount of the trigger lever 3a. Can be made relatively large.

  The rotary member 51, which is a large-diameter gear constituting a part of the drive mechanism 5 in the drive cam body 4a, is pivotally supported at the lower part of the upper partition plate 14a at the center thereof, and The cam portion projecting rearward from the portion 4a1 and the valley portion 4a2 projects rearward through a circular hole penetrating the base plate 18. On the other hand, the driven body 4b is pressed forward by a compression spring 21 interposed between the rear surface of the disk member 4b 'and the rear inner surface of the case 1, and is driven toward the drive cam body 4a. It is energized in the direction to always press.

  In addition, as shown in FIG. 6, the drive cam body 4a and the driven body 4b project guide cylindrical portions 4a3 and 4b3 that are slidably fitted in the front and rear directions at the center of the opposing surface. The follower 4b is configured to be able to move back and forth in the axial direction reliably and accurately.

  The pulling frame 8 for pulling the trigger lever 3a of the sprayer 3 is formed in a flat rectangular frame shape that is long in the front-rear direction, and is engaged with the inner surface of the front frame portion 8a hooked on the front surface of the trigger lever 3a. At the same time, the both side frame portions 8b, 8b are horizontally arranged rearward along the outer sides of the cap 17, the upper partition plate 14a and the base plate 18 of the sprayer 3, and the both side frame portions 8b. The rear end frame portion 8c of the cam mechanism 4 is connected to both side portions of the follower 4b in the cam mechanism 4.

  Further, on the outer surface of the both side frame portions 8b, 8b of the tow frame 8, long horizontal projections 8d, 8d are projected, while the opposite side portions of the case halves 1a, 1b of the case 1 are provided. As shown in FIG. 5, horizontal guide grooves 19, 19 that are long in the front-rear direction are provided on the inner surface, and the protrusions 8d, 8d of the traction frame 8 can be slid forward and backward in the horizontal guide grooves 19, 19. Engage and support.

  The drive mechanism 5 for driving the cam mechanism 4 transmits to the drive cam body 4a while decelerating the rotation of the motor 5a installed and fixed on the upper rear surface of the base plate 18 and the rotation shaft of the motor 5a. It comprises a meshing gear train 5b.

  The meshing gear train 5b is disposed using a space between the partition plate 14a and the base plate 18, and is fixed to the rotating shaft of the motor 5a as shown in FIG. A pinion 52, a small-diameter gear 53 meshed with the pinion 52, a pinion 54 fixed coaxially with the small-diameter gear 53, and an intermediate gear 55 meshed with the pinion 54 (having a larger diameter than the small-diameter gear 53) The pinion 56 is fixed coaxially to the intermediate gear 55, and the pinion 56 is engaged with a large-diameter gear 51 integral with the cam mechanism 4.

  The circuit board 6 for controlling the driving mechanism 5 is disposed on the lower surface of the lid member 11 of the case 1. The circuit board 6 includes the power source 7, the sensor 9, the switch 10, the motor 5 a of the driving mechanism 5, and the like. They are connected by wiring 22.

  Next, the usage aspect of the chemical | medical solution automatic spraying apparatus comprised as mentioned above is demonstrated. The liquid container 2 contains, for example, a mouse repellent. The case 1 equipped with the liquid container 2 is placed in a place where the mouse tends to appear and is activated by turning on the switch 10. Set to.

  When a mouse appears in this installed state and is detected by the sensor 9, a signal is transmitted from the control circuit of the control board 6 to the drive mechanism 5, the motor 5a of the drive mechanism 5 is operated, and the meshing gear train 5b The drive cam body 4a in the cam mechanism 4 integrated with the rotating member 51 via the rotating member 51 formed of a large-diameter gear on the output end side of the meshing gear train 5b while reducing the rotating speed and increasing the rotating torque. And the drive cam body 5a is rotated.

  When the drive cam body 5a rotates, the inclined surface directed in the rotation direction at the peak portion 4a1 contacts the inclined surface of the convex portion 4b1 of the driven body 4b facing the inclined surface, and the rotation of the drive cam body 4a is performed. The driven body 4b having the convex portion 4b1 is retracted against the force of the compression spring 21 while sliding the inclined surface of the peak portion 4a1 on the inclined surface of the convex portion 4b1. The traction frame 8 connecting the parts together is pulled backward. Further, when the driving cam body 4a rotates and the top surface of the peak portion 4a1 reaches the top surface of the convex portion 4b1 of the driven body 4b as shown in FIGS. It will be in a state of being largely pulled.

  At this time, the retraction of the driven body 4b due to the rotation of the drive cam body 4a is caused by the peaks 4a1 and 4a1 projecting at an angular interval of 180 degrees in the drive cam body 4a to the peaks 4a1 and 4a1. Since the projections 4b1 and 4b1 of the follower 4b that are in sliding contact with each other are pushed rearward, the side frame portions 8b and 8b of the traction frame 8 are pulled rearward with an equal traction force, and the trigger lever 3a is moved. The repellent can be smoothly and reliably pulled and rotated backward, and the repellent is sprayed from the spray nozzle 3b toward the rat in which the repellent in the chemical solution container 2 appears by the operation of the trigger lever 3a.

When the crest 4a1 gets over the convex part 4b1 of the driven body 4b by the rotation of the drive cam body 4a, the crest 4a1
The follower 4b is connected to the compression spring 21, the trigger lever 3a When the convex portion 4b1 of the driven body 4b is inserted into the valley 4a2 of the drive cam body 4a, the trigger lever 3a returns to the original position and the spray nozzle 3b Stop spraying repellent.

  Note that a timer may be provided on the circuit board 6 that controls the drive mechanism 5 so that the trigger lever 3a is operated several times and then stopped.

1 Case 2 Chemical container 3 Nebulizer
3a Trigger lever
3b Spray nozzle 4 Cam mechanism, 4a Drive cam body
4a1 Yamabe
4a2 Tanibe
4b Follower
4b1 Convex
4b2 Concave part 5 Drive mechanism
5a motor
5b meshing gear train 6 circuit board 7 power supply 8 tow frame 9 sensor
15a Front room
15b Rear room
20 Outlet

Claims (5)

  A case, a chemical container housed in the front of the case, a sprayer mounted on the mouth of the chemical liquid container, and configured to spray the chemical liquid in the chemical liquid container from the spray nozzle by operation of a trigger lever; A cam mechanism disposed in a rear portion of the case, a tow frame that connects a front end portion to the trigger lever, connects a rear end portion to the cam mechanism, and pulls the trigger lever by the operation of the cam mechanism; A drive mechanism for the cam mechanism disposed in the rear of the case; a sensor mounted on the front surface of the case; a circuit board for operating the drive mechanism upon detection of the sensor; A chemical liquid automatic spraying device comprising a discharge port with a nozzle facing forward.   The tow frame is formed in the shape of a flat rectangular frame. The front frame is engaged with the inner surface of the front frame hooked to the front of the trigger lever, and long protrusions protrude horizontally on the outer surfaces of the both side frames. 2. The chemical liquid automatic spraying device according to claim 1, wherein the protrusions are engaged with horizontal guide grooves provided on the inner surfaces of both sides of the case so as to be slidable back and forth.   The cam mechanism includes a drive cam body that is rotationally driven by the drive mechanism, and a driven body that is disposed at a rear portion of the drive cam body and connects the rear end portion of the pulling frame of the trigger lever. The drive cam body is formed by projecting a cam surface formed by alternately and continuously forming crests and troughs curved in an arc on the outer peripheral part of the rotating member in the circumferential direction. The circular and convex convex portions and concave portions engaged with the cam surface of the drive cam body are alternately and continuously formed in the circumferential direction on the front outer peripheral portion of the disk member. 2. The automatic chemical spraying device according to claim 1, wherein the rear end surface is pressed by a spring, and the surface provided with the convex portion and the concave portion is pressed toward the cam surface side of the drive cam body. .   4. The chemical liquid automatic spraying device according to claim 1, wherein the drive mechanism comprises a motor and a meshing gear train that transmits to the drive cam body while decelerating the rotation of the rotation shaft of the motor.   The case body is composed of left and right case halves that are separably coupled to each other, and the case body includes a front chamber in which a chemical solution container is replaceable by a partition plate, and a rear chamber in which a cam mechanism and a drive mechanism are disposed. 2. The battery storage chamber as a power source according to claim 1, wherein a cam mechanism and a drive mechanism are attached to an upper rear surface of the partition plate, and a lower portion of the rear chamber is formed in a battery storage chamber as a power source. Automatic chemical spraying device.

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