TWM559753U - Injection nozzle and injection device provided with the same - Google Patents

Abstract

Provided is a spray nozzle and an injection device therewith which can remove dirt or deposits. The inner and outer double pipe structure comprises an outer pipe and an inner pipe, and pressurized gas is injected from the inner pipe and the outer pipe, and the auxiliary liquid is sprayed from the inner pipe. The outer tube includes a fixed outer tube, a rotating body, an eccentric body, a movable body, and an elastic member. The fixed outer tube is formed with a first bearing portion formed to extend outward in the radial direction. The rotating body has a through hole communicating with the fixed outer tube therein, and is rotatably disposed on the fixed outer tube, and the material thereof comprises a hard material. The eccentric body is fixedly attached to the end portion of the rotating body. The movable body is formed with a second carrier portion that is formed to extend outward in the radial direction, and is attached and fixed to the eccentric body via a bearing. The elastic member is disposed between the first carrier portion and the second carrier portion and applies a pressing force to the movable body.

Description

Injection nozzle and injection device having the same

The present invention relates to a nozzle and an injection device including the jet nozzle for injecting pressurized gas stored in a pressurized gas supply source.

Conventionally, a spray nozzle or an injection device has been known to be used for cleaning a target to be cleaned by adhering to dirt or the like. For example, a spray gun including a nozzle and a guide is described in Patent Document 1 (Japanese Laid-Open Patent Publication No. 2003-154294). The nozzle of the spray gun described in Patent Document 1 is formed of a flexible cylindrical body, and a pressurized fluid is passed through the inside of the cylindrical body, and has an air outlet for injecting a pressurized fluid at the distal end. Further, the guide of the spray gun is formed to have a circular cross-sectional shape, and is disposed outside the radial direction of the nozzle and formed to guide the rotation of the nozzle. In other words, since the nozzle of the spray gun is rotated by injecting the pressurized fluid from the air outlet, the rotary nozzle is caused to inject the pressurized fluid from the air outlet while rotating along the guide. Further, in the spray gun, a brush is provided at a distal end portion of the guide. The brush is configured such that it is disposed at the distal end portion in a direction in which the pressurized fluid is ejected from the outlet of the nozzle, and sequentially rotates together with the nozzle or the pressurized fluid.

However, in the injection device described in Patent Document 1, in order to inject a pressurized fluid from the outlet port and stably rotate the nozzle, a considerable injection pressure is required. Therefore, since the pressurized fluid injected from the nozzle is often at a high pressure, there has been a problem that the conventional nozzle can be used only for high-pressure injection. Further, the injection device described in Patent Document 1 requires a trumpet-shaped guide for stabilizing the rotation diameter when the nozzle is rotated, and it is also necessary to rotate the nozzle while the nozzle is along the inner circumferential surface of the guide. . Therefore, frictional resistance is generated between the nozzle and the inner peripheral surface of the guide member. With regard to this frictional resistance, as the nozzle rotates to increase the amount of contact with the inner peripheral surface of the guide member, the frictional resistance generated between the nozzle and the inner peripheral surface of the guide member also tends to increase. Therefore, in the injection device described in Patent Document 1, there is also a problem that the rotation of the nozzle gradually deteriorates.

In order to solve this problem, the applicant of the present application has created an injection device described in Patent Document 2 (Japanese Patent Publication No. 5161517). The injection device described in Patent Document 2 has a rotating body that constitutes a part of the pressurized gas flow path. The rotating body is made of a hard material and has a structure that is freely rotatable relative to the end of the fixed pipe. Thereby, it is possible to solve the problem that only the nozzle device can be used for the high-pressure injection application held by the nozzle when the nozzle is rotated. Further, in the injection device described in Patent Document 2, even if the injection pressure of the pressurized fluid from the outlet is low or the amount of the pressurized fluid is small from the outlet, the nozzle can be well started in the guide. Rotate. Therefore, even when the object to be washed is a fine jet such as a feather fiber, it is possible to cope with it, and it is possible to utilize the nozzle and the ejection device in a wide range of fields.

According to the invention described in Patent Document 2, by rotating the nozzle along the guide, it is possible to solve the problem that the nozzle can be used only for high-pressure injection. Further, in the injection device described in Patent Document 2, even if the injection pressure of the pressurized fluid is low or the amount of blowout from the outlet is small, the nozzle can smoothly start to rotate. Therefore, the effect of the ejection can be surely performed even if the object to be cleaned which requires fine ejection such as feather fibers is used.

The applicant of the present application has made an intensive research on the injection nozzle that exhibits a better effect and the injection device that has the injection nozzle, as the object of the invention described in Patent Document 2 is more effectively provided. In other words, in the invention described in Patent Document 2, the so-called rotary impact cleaning is performed, that is, the pressurized gas is sprayed toward the object to be cleaned, and the dirt on the dirty surface of the object to be cleaned is removed. It is a non-contact method in which the dirty surface of the object to be cleaned is not in contact with the ejection device, so that it is difficult to remove the dirt or stubborn dirt adhering to the dirty surface.

In view of the above, the present invention has an object of providing an injection nozzle and an injection device including the same, which can more effectively remove dirt or the like of a cleaning object to which a deposit adheres. Clean it.

Regarding the injection nozzle of the present invention, the gist thereof is as follows.

(1) The structure of the injection nozzle includes an inner and outer double tube structure including an outer tube and an inner tube inserted into the outer tube, and for supplying pressurized gas stored in a pressurized gas supply source from the inner tube and the outer tube Spraying, and for supplying an auxiliary liquid stored in the auxiliary liquid supply source from the inner tube, wherein the auxiliary liquid comprises a liquid, a powder or a liquid powder mixture. The outer tube includes a fixed outer tube, a rotating body, a spacer, an eccentric body, a movable body, and an elastic member. A first carrier portion extending outward in the radial direction is formed at a base end portion of the fixed outer tube, and the base end portion is in communication with the pressurized gas supply source. The rotating body has a through hole communicating with the fixed outer tube, and the rotating body is rotatably provided at an end of the fixed outer tube, and the material of the rotating body comprises a hard material. The spacer fills the through hole between the fixed outer tube and the rotating body. The eccentric body is attached and fixed to the end portion of the rotating body. The movable body is formed with a second carrier portion that is formed to extend outward in the radial direction, and the movable body is attached and fixed to the eccentric body via a bearing. The elastic member is disposed between the first carrier portion and the second carrier portion, and applies a pressing force to the movable body. The eccentric body includes a fixing portion, a coupling portion, and an eccentric portion. The fixing portion is attached and fixed to the rotating body. The coupling portion is fixed to the fixing portion, and a rotation center of the coupling portion intersects at an end of the fixing portion at a rotation center of the fixing portion. The eccentric portion has an outer peripheral surface, and the peripheral surface is in contact with the inner peripheral surface of the bearing. When the rotating body starts to rotate, the pressing force of the elastic member is received, and the grinding operation is performed based on the connecting portion.

(2) The structure of the injection nozzle comprises an inner and outer double tube structure, which comprises an outer tube and an inner tube inserted into the outer tube, and is used for supplying pressurized gas stored in a pressurized gas supply source from the inner tube and the outer tube Spraying, and for supplying an auxiliary liquid stored in the auxiliary liquid supply source from the inner tube, wherein the auxiliary liquid comprises a liquid, a powder or a liquid powder mixture. The outer tube includes a fixed outer tube, a rotating body, an eccentric body, a movable body, and an elastic member. A first carrier portion extending outward in the radial direction is formed at a base end portion of the fixed outer tube, and the base end portion is in communication with the pressurized gas supply source. The rotating body has a through hole communicating with the fixed outer tube, and the rotating body is rotatably provided at an end of the fixed outer tube, and the material of the rotating body comprises a hard material. The eccentric body is attached and fixed to the end portion of the rotating body. The movable body is formed with a second carrier portion that is formed to extend outward in the radial direction, and the movable body is attached and fixed to the eccentric body via a bearing. The elastic member is disposed between the first carrier portion and the second carrier portion, and applies a pressing force to the movable body. The eccentric body includes a fixing portion, a coupling portion, and an eccentric portion. The fixing portion is attached and fixed to the rotating body. The connecting portion is fixed in a point shape to the fixing portion, and a rotation center of the connecting portion intersects at an end of the fixing portion at a rotation center of the fixing portion. The eccentric portion has an outer peripheral surface, and the peripheral surface is in contact with the inner peripheral surface of the bearing. When the rotating body starts to rotate, the pressing force of the elastic member is received, and the grinding operation is performed based on the connecting portion.

(3) The structure of the injection nozzle comprises an inner and outer double tube structure, which comprises an outer tube and an inner tube inserted into the outer tube, and is used for supplying pressurized gas stored in a pressurized gas supply source from the inner tube and the outer tube Spraying, and for supplying an auxiliary liquid stored in the auxiliary liquid supply source from the inner tube, wherein the auxiliary liquid comprises a liquid, a powder or a liquid powder mixture. The outer tube includes a fixed outer tube, a fixed pin member, a rotating body, an eccentric body, a movable body, and an elastic member. A first carrier portion extending outward in the radial direction is formed at a base end portion of the fixed outer tube, and the base end portion is in communication with the pressurized gas supply source. The fixing pin member is disposed at a predetermined position in the longitudinal direction of the fixed outer tube. The rotating body has a through hole communicating with the fixed outer tube, and the rotating body is rotatably provided at an end of the fixed outer tube, and the material of the rotating body comprises a hard material. The eccentric body is attached and fixed to the end portion of the rotating body. The movable body includes a joint portion joined to the fixing pin member, and a second load portion formed to extend outward in the radial direction is formed. The movable body is attached and fixed to the eccentric body via a bearing. The elastic member is disposed between the first carrier portion and the second carrier portion, and applies a pressing force to the movable body. When the rotating body starts to rotate, the eccentric body receives the pressing force of the elastic member, and the movable body performs a polishing motion based on a joint point between the fixing pin member and the joint portion.

(4) The spray nozzle according to any one of the above (1) to (3), wherein the movable body includes a brush for cleaning the object to be cleaned.

(5) The injection nozzle described in any one of the above (1) to (4), wherein the elastic member is a coil spring.

Further, the gist of the present invention having an injection nozzle is as follows.

(6) An injection device comprising the injection nozzle described in any one of the above (1) to (5).

According to the injection nozzle and the injection device of the present invention, it is possible to inject the pressurized gas and the auxiliary liquid from the cleaning target from various angles, and to more effectively remove fine dirt or deposits adhering to the object to be cleaned. Further, according to the injection nozzle of the present invention, since the injection amount of the auxiliary liquid can be adjusted by adjusting the injection pressure of the pressurized gas, it is possible to arbitrarily set the appropriate amount depending on the degree of contamination or adhering matter adhering to the cleaning target. The ejector pressure is capable of reliably removing only dirt or adhering matter without applying an excessive load to the object to be cleaned or damaging the object to be washed. Further, since the spray pressure can be arbitrarily set to remove the dirt or deposits of the object to be cleaned, it is also possible to use a washing object requiring a finer jet, and it is also possible to provide a spray nozzle and a spray which can be widely used. Device. In particular, according to the spray nozzle and the spray device of the present invention, since the movable body is provided with a brush for cleaning the object to be cleaned, the brush can be three-dimensionally moved by the grinding motion, and the brush can be contact-washed. Remove the dirt directly from the net object. Thereby, it is possible to remove the stubborn dirt and the like adhering to the object to be cleaned more effectively, and it is possible to make the object to be cleaned more clean.

The embodiment of the injection nozzle of the present invention and the injection device including the injection nozzle will be described using the drawings. First, an embodiment of the injection nozzle of the present invention will be described using Figs.

As shown in FIG. 2, the injection device 1 of this embodiment includes an operation unit 2, a storage container 3, an on-off valve operation member 4, a connection body 5, and an injection nozzle 6.

The operation unit 2 includes a gun body 7 and a trigger 8. The body body 7 has an input end 9 and an output end 10. A suction port 11 is opened at the input end 9, and a discharge port 12 is opened at the output end 10. Further, a flow path 13 is formed between the suction port 11 and the discharge port 12. The suction port 11 is an opening for taking in air as a pressurized gas, and the pressurized gas is stored in the pressurized gas supply source 14 and supplied by the pressurized gas supply source 14. The method of forming the suction port 11 may be a method using a pipe, or may be another method.

The discharge port 12 is an opening for discharging the pressurized gas sucked from the suction port 11. Further, the flow path 13 is a path for guiding the pressurized gas sucked from the suction port 11 toward the discharge port 12. The flow path 13 is not particularly limited in its inner diameter or shape as long as the air which is a pressurized gas can be guided to the discharge port 12 by a predetermined amount.

When the air supplied as the pressurized gas from the pressurized gas supply source 14 is sent from the upstream side to the downstream side, the trigger 8 is used to adjust the flow rate of the air supplied thereto. The trigger 8 is constructed to operate the flow rate adjusting portion 15 provided in the body body 7. That is, the construction of the trigger 8 is as follows. When the trigger 8 is operated in a direction close to the body body 7, the flow rate adjusting portion 15 is opened, and a larger flow rate of air can be supplied. On the other hand, if the trigger 8 is operated in a direction away from the body body 7, the flow rate adjusting portion 15 is closed, and the amount of supply of air can be reduced. Further, in the present embodiment, the operation portion 2 of the gun-like structure is used as an example of the operation portion 2, but the operation portion 2 is not limited to a gun-like structure, and may be other structures.

As the pressurized gas supply source 14, for example, an air compressor can be used. Further, the pressurized gas supply source 14 is connected to the gun body 7 via a supply pipe (not shown). The body body 7 is pulled by the trigger 8, and the pressurized gas flows through the connecting body 5 and then the pressurized gas flow path is sent to the conveying flow path of the injection nozzle 6 to be described later. While the trigger 8 is being pulled, the communication state from the supply line to the delivery flow path is maintained, and the trigger 8 is returned to its original state, thereby releasing the communication state from the supply line to the delivery flow path.

The storage container 3 as an auxiliary liquid supply source is detachably attached to the upstream side of the switching valve operating member 4. The storage container 3 stores the auxiliary liquid inside without pressure, and the auxiliary liquid contains, for example, a liquid such as a cleaning liquid, a powder or a mixture of liquid powder and granules, and in the storage container 3, constitutes the inner tube 22 of the injection nozzle 6. One end extends toward the bottom. The storage container 3 is constructed to be connected to the switching valve operating member 4 to maintain airtightness in the storage container 3 without liquid leakage. In addition to the cleaning liquid used in the present embodiment, the auxiliary liquid can also be used as a granular material and used for sand blasting, and can also be used as a powder or liquid coating.

The switching valve operating member 4 is disposed between the storage container 3 and the connecting body 5. The upstream side of the switching valve operating member 4 is connected to the storage container 3, and the downstream side is connected to the connecting body 5. Further, upstream and downstream of the switching valve operating member 4, the side in which the cleaning liquid stored in the storage container 3 is sucked into the opening and closing valve operating member 4 is referred to as the upstream side, and the side where the cleaning liquid is sucked out is referred to as the downstream side. This switching valve operating member 4 is provided with an operating lever 16 for operating the switching valve. The configuration is such that the cleaning liquid can be supplied toward the ejection port by operating the operating lever 16. Further, in the present embodiment, it is preferable to ensure airtightness between the switching valve operating member 4 and the connecting body 5. For this reason, for example, a structure using a sealing member is preferable.

The connecting body 5 is connected to the operating portion 2, the switching valve operating member 4, and the injection nozzle 6, and is used to connect the operating portion 2, the switching valve operating member 4, and the injection nozzle 6, respectively. In the connecting body 5, a pressurized gas flow path which is a flow path for conveying air is formed inside, and an inner tube 22 for conveying the cleaning liquid is disposed inside. In other words, in the connected body 5, a flow path for allowing the operation portion 2, the switching valve operating member 4, and the injection nozzle 6 to communicate with each other is formed.

Next, the structure of the injection nozzle 6 of the present embodiment will be explained. The injection nozzle 6 can be connected to the downstream side of the operation unit 2 or the end side of the operation unit 2 by any conventional method such as screwing. Further, the injection nozzle 6 is an inner and outer double pipe structure including an outer pipe 21 and an inner pipe 22 inserted into the outer pipe 21. The air stored in the pressurized gas supply source 14 as a pressurized gas can be ejected from between the inner tube 22 and the outer tube 21. The auxiliary liquid stored in the storage container 3 as an auxiliary liquid supply source can be ejected from the inner tube 22, wherein the auxiliary liquid contains a liquid, a granule or a liquid granule mixture.

The structure of the outer tube 21 will be described below.

The outer tube 21 is provided with a fixed outer tube 23, a rotating body 24, an eccentric body 25, and a movable body 26 from the base end to the end, and the first bearing portion 27 and the movable body 26 are described later after the fixed outer tube 23 is formed. An elastic member 29 is disposed between the two carrier portions 28. The housing 29' can surround and cover the elastic member 29 to protect the elastic member 29. That is, the outer tube 21 includes the fixed outer tube 23, the rotating body 24, the spacers 33a and 33b, the eccentric body 25, the movable body 26, the elastic member 29, and the housing 29'. The base end portion of the fixed outer tube 23 is formed with a first carrier portion 27 formed to extend outward in the radial direction, and the base end portion communicates with the pressurized gas supply source 14. The rotating body 24 has a through hole 30 communicating with the fixed outer tube 23 therein, and is rotatably disposed at the end of the fixed outer tube 23, and the material thereof comprises a hard material. The spacers 33a, 33b fill the through holes 30 between the outer tube 23 and the rotating body 24. The eccentric body 25 is attached and fixed to the distal end portion of the rotating body 24. The movable body 26 is formed with a second carrier portion 28 that is formed to extend outward in the radial direction, and is attached and fixed to the eccentric body 25 via a bearing 31. The elastic member 29 is disposed between the first carrier portion 27 and the second carrier portion 28 and applies a pressing force to the movable body 26. Further, the movable body 26 can be attached with a brush for cleaning the object to be cleaned.

The structure of the fixed outer tube 23 will be described below.

The fixed outer tube 23 is disposed on the most proximal end side of the injection nozzle 6, and a connecting portion 32 that is coupled to the connecting body 5 is formed at an end portion (left side in FIG. 1) on the proximal end side. In the present embodiment, the connecting portion 32 can be formed in a male screw shape and coupled to the connected portion 46 of the connecting body 5 formed in the female thread shape. However, the connecting portion 32 is only required to connect and fix the outer tube 23 and the connecting body 5 . Yes, it can be other structures. Further, in the fixed outer tube 23, a first carrier portion 27 formed to extend outward in the radial direction from the fixed outer tube 23 is formed at a predetermined position on the proximal end side. The first bearing portion 27 is formed with a first bearing surface 32a on the distal end side, and is configured to contact one end of the elastic member 29 to be described later, and at the same time, can support the pressing force of the elastic member 29.

Further, the fixed outer tube 23 is formed in a tapered shape in which the outer diameter gradually decreases as it advances from the proximal end side toward the distal end side at a position where the distal end side of the distance connecting portion 32 is specified. Further, the fixed outer tube 23 is formed with a bearing attachment portion 33 on the more distal end side. The outer diameter of the bearing attachment portion 33 is formed into a groove shape which is thinner than other positions. In the present embodiment, the bearing attachment portion 33 is mounted with three bearings 31 via the two spacers 33a. The spacer 33a fills the through hole 30 between the fixed outer tube 23 and the rotating body 24 and between the bearings 31 so that the airflow does not easily flow between the fixed outer tube 23 and the rotating body 24 and between the bearings 31 The through hole 30, thereby preventing the bearing 31 from being blown by the air flow. In the case where the bearing 31 is, for example, a bearing 31 containing a lubricating oil, it is possible to prevent the lubricating oil of the bearing 31 from being blown by the airflow to be dried, thereby preventing the frictional force of the bearing 31 from becoming large due to drying of the lubricating oil. Further, the shape of the bearing mounting portion 33 or the number and configuration of the mounted bearings are not limited to the present embodiment. Further, the bearing 31 attached to the bearing attachment portion 33 can arbitrarily use a conventionally known element.

In the fixed outer tube 23, a through hole 23a penetratingly formed is formed in the longitudinal direction. The inner tube 22 can be inserted into the inside of the through hole 23a, and a conveying space 34 having a predetermined width is formed between the outer peripheral surface 22a of the inner tube 22 and the inner peripheral surface 21a of the fixed outer tube 23. The conveyance space 34 is a space for conveying the air supplied from the pressurized gas supply source 14 from the connection portion 32 toward the injection port, and is configured to sequentially transport the air having the specified pressure.

The structure of the rotating body 24 will be described below.

The rotating body 24 is provided on the end side of the fixed outer tube 23 so as to be rotatable relative to the fixed outer tube 23. The material of the rotating body 24 includes a hard material, and a through hole 30 communicating with the fixed outer tube 23 is disposed inside the material. A continuous conveying flow path in the injection nozzle 6 is formed by fixing the through hole 23a of the outer tube 23 and the through hole 30 of the rotating body 24.

The rotating body 24 includes a rotating body 35 and a nozzle body 36. The rotator main body 35 is formed as a cylindrical body, and a through hole 30 is formed in the inside of the cylindrical body. The inner diameter of the through hole 30 is substantially the same diameter as the outer diameter of the bearing 31 attached to the fixed outer tube 23. The rotating body body 35 is formed with an insertion hole 24a at an end portion on the proximal end side, and the diameter of the insertion hole 24a is smaller than the inner diameter of the through hole 30. Further, in the inside of the through hole 30, the surface connecting the through hole 30 to the insertion hole 24a serves as a contact surface 24b which can come into contact with the bearing 31 attached to the bearing mounting portion 33 of the fixed outer tube 23. That is, the insertion hole 24a is formed to have a diameter larger than the outer diameter of the fixed outer tube 23 and smaller than the outer diameter of the bearing 31, and the contact surface 24b is formed to be able to contact the base end side surface of the bearing 31.

Further, the rotating body 24 is formed with a nozzle body 36 and a screw portion 37 for attaching and fixing the eccentric body 25 at the distal end portion. In the present embodiment, the threaded portion 37 is formed in a female thread shape on the inner circumferential surface of the through hole 30. This threaded portion 37 is formed to fix and fix the nozzle body 36 and the eccentric body 25 in a screwing manner.

The spacer 33b fills the through hole 30 between the fixed outer tube 23 and the rotating body 24 and between the bearing 31 and the nozzle body 36, so that the airflow does not easily flow between the fixed outer tube 23 and the rotating body 24 and is located at the bearing 31. A through hole 30 is formed between the nozzle body 36 and the nozzle body 36, thereby preventing the bearing 31 from being blown by the air flow. In the case where the bearing 31 is, for example, a bearing 31 containing a lubricating oil, it is possible to prevent the lubricating oil of the bearing 31 from being blown by the airflow to be dried, thereby preventing the frictional force of the bearing 31 from becoming large due to drying of the lubricating oil.

The nozzle body 36 is formed at an end portion on the proximal end side so as to be screwed to the male screw of the screw portion 37, and a nozzle end portion 38 is formed from the proximal end portion toward the distal end portion. Further, the male screw is formed to be screwed to the screw portion 37 of the rotary body 24. The nozzle end portion 38 is a tubular member that extends from the base end portion of the nozzle body 36 toward the tip end portion. This nozzle tip end portion 38 has a blow port 39 at its end. The nozzle end portion 38 is formed with an air outlet 39 at a position shifted from the rotation axis of the rotating body 24 in the radial direction, and the air outlet 39 faces in a direction intersecting the rotation axis direction and the radial direction.

In the injection nozzle 6, the base end of the fixed outer tube 23 is airtightly connected to the end of the coupling portion 32, thereby communicating the pressurized gas supply source 14 and the through hole 23a. Therefore, the air supplied from the pressurized gas supply source 14 is ejected from the end of the through hole 23a by the operation of the trigger 8, and the reaction force is applied to the nozzle end portion 38, whereby the rotating body 24 rotates around the rotating shaft. . Further, the inner tube 22 is disposed inside the nozzle end portion 38, and the end position of the air outlet 39 and the end position of the inner tube 22 are disposed at substantially the same position.

The eccentric body 25 includes a fixing portion 41 , a coupling portion 42 , and an eccentric portion 43 . The fixing portion 41 is attached and fixed to the rotating body 24 . The connecting portion 42 is fixed to the fixing portion 41, and the rotation center of the connecting portion 42 intersects the end of the fixing portion 41 at the center of rotation of the fixing portion 41. The eccentric portion 43 has an outer peripheral surface, and the peripheral surface is in contact with the inner peripheral surface of the bearing 31. The eccentric body 25 is configured such that when the rotating body 24 starts the rotational motion, the urging force of the elastic member 29 is received, and the grinding operation is performed centering on the connecting portion 42. The specific structure of the fixing portion 41, the eccentric portion 43, and the coupling portion 42 will be described below.

The fixing portion 41 is formed such that the proximal end side thereof can be screwed to the screw portion 37 of the rotating body 24. Further, the fixing portion 41 is formed with a through hole 45 penetrating therethrough. The through hole 45 is formed in a portion of the screw portion 37 so as to be coaxial with the rotation shaft of the rotating body 24. The connecting portion 42 is for connecting the fixing portion 41 and the eccentric portion 43 of the eccentric body 25. The center of the eccentric portion 43 and the center of the hole of the through hole 45 are offset by a predetermined amount in the radial direction. The eccentric portion 43 can perform a swinging motion with respect to the fixed portion 41 with the connecting portion 42 as a base point. Further, the eccentric portion 43 is inserted into a bearing 31 to be described later. That is, the eccentric portion 43 has a peripheral surface that penetrates the inner peripheral hole of the bearing 31.

When the rotating body 24 starts to rotate, the eccentric body 25 starts to rotate together with the rotating body 24. When the rotating body 24 starts to rotate, the fixing portion 41 attached to the rotating body 24 is similarly started to rotate coaxially with the rotating shaft of the rotating body 24. Next, the fixing portion 41 also transmits a rotational force to the eccentric portion 43 connected to the coupling portion 42, and the eccentric portion 43 also starts to rotate. Therefore, when the rotating body 24 starts to rotate, the eccentric portion 43 performs an orbital movement which is performed in an eccentric state in which the center of the axis of the rotating body 24 is shifted by only a predetermined distance.

As described above, the bearing 31 is mounted on the outer peripheral surface of the eccentric portion 43. That is, the outer diameter of the outer peripheral surface of the eccentric portion 43 is formed to be substantially the same as the inner diameter of the inner peripheral surface of the bearing 31, and the bearing 31 can be attached to the eccentric portion 43.

The movable body 26 is a member formed of a material such as a resin, and is attached and fixed to the eccentric body 25 via a bearing 31. That is, since the bearing 31 is located between the movable body 26 and the eccentric body 25, the movable body 26 does not rotate even if the eccentric body 25 rotates.

The movable body 26 is formed in such a manner that the end surface on the proximal end side becomes the second carrier portion 28 and is disposed to face the first carrier portion 27. The elastic member 29 to be described later is disposed between the first carrier portion 27 and the second carrier portion 28, and the second carrier portion 28 is formed to be capable of contacting the other end portion of the coil spring as the elastic member 29 to be described later, and is capable of withstanding the coil spring The elastic force is also the pushing force.

Further, the movable body 26 forms a bearing attachment portion 52 for mounting the bearing 31. The bearing attachment portion 52 is a portion in which the inner diameter formed in the inside of the movable body 26 is substantially the same as the outer circumferential surface of the bearing 31. By mounting the bearing 31 here, the movable body 26 is attached to the rotating body 24 via the bearing 31.

The brush 26a is attached and fixed to the outer peripheral side of the movable body, and has a brush body 26b for scraping the dirt of the cleaning object at the distal end thereof, and a fixing portion 26c to be attached and fixed to the movable body 26 at the proximal end thereof. The brush 26a can be arbitrarily selected using conventionally known elements. Further, the hardness, length, and the like of the brush body 26b can be arbitrarily selected and used. Further, in the present embodiment, a method of attaching and fixing the brush 26a to the movable body 26 using a thread is employed, but other methods may be employed.

The coil spring as the elastic member 29 is disposed between the first carrier portion 27 and the second carrier portion 28, and is formed to be capable of applying a pressing force of a predetermined size to the first carrier portion 27 and the second carrier portion 28. The fixed outer tube 23 and the rotating body 24 are disposed in the coil spring, and the entire size of the injection nozzle 6 can be compacted. In addition, the elastic member 29 can apply a predetermined amount of pressing force to the first carrier portion 27 and the second carrier portion 28, in other words, a predetermined amount of pressing force can be applied to the movable body 26, but the entire injection nozzle 6 is tightened. From the viewpoint of size, it is preferable to use a coil spring.

The proximal end side of the inner tube 22 penetrates and fixes the outer tube 23, and the distal end side of the inner tube 22 communicates with the air outlet 39 of the rotating body 24. The base end of the inner tube 22 communicates with the storage container 3. In the inner tube 22, in the injection nozzle 6, the base end side (left side in FIG. 1) of the inner tube 22 penetrates through the fixed outer tube 23, and the base end of the inner tube 22 is inserted into the inside of the storage container 3 and communicates Here, the container 3 is stored. Further, in the injection nozzle 6, the end side (the right side in FIG. 1) of the inner tube 22 communicates with the air outlet 39 of the rotating body 24. That is, in the injection device 1, the base end side (left side in FIG. 1) of the inner tube 22 communicates with the storage container 3 via the switching valve operating member 4, and the intermediate portion thereof penetrates and fixes the outer tube 23, and the end portion thereof ( The right side of the rotating body 24 is inserted into the through hole 30 provided in the right side of FIG.

Moreover, the inner tube 22 can be formed using a flexible tube having flexibility. The reason for this is that since the storage pressure in the storage container 3 is applied to the inner tube 22, that is, the pressure at the atmospheric pressure, the inner tube 22 is made of a soft material, and the end portion of the inner tube 22 can be well followed. The rotating body 24 rotates. The material of the flexible tube used in the inner tube 22 may include a flexible synthetic resin such as nylon (nylon), polytetrafluoroethylene, polyurethane, or polypropylene. In this case, the inner tube 22 can be protected by including the tube 21 that fixes the outer tube 23 and the rotating body 24. Therefore, even in the case where a flexible tube formed of a soft material is used for the inner tube 22, the end portion of the inner tube 22 is not exposed. Therefore, the inner tube 22 does not collide with the object to be washed and is worn out or the inner tube 22 does not cause damage to the object to be cleaned or the like due to the impact.

The inner tube 22 can also be constructed to use a continuous flexible tube from the base end to the end. In addition, for example, in other aspects, the inner tube 22 can also be configured to fix the inner tube 22 and the rotating inner tube 22, and the fixed inner tube 22 is a portion that penetrates and fixes the inner portion of the outer tube 23 and is made of a hard plastic or metal. The end of the fixed inner tube 22 is provided with a rotating inner tube 22 using a flexible tube to enable it to rotate.

The open end of the end side of the inner tube 22 may be slightly protruded from the air outlet 39, or may be disposed inside the through hole 30 constituting the rotating body 24 of the outer tube 21, or may be maintained near the end of the fixed outer tube 23. . If the end portion of the inner tube 22 is disposed in this manner, a negative pressure region (NP) can be formed in the vicinity of the air outlet 39 or from the inside of the through hole 30 to the end of the fixed outer tube 23 by injecting air from the air outlet 39. This causes the inside of the inner tube 22 to also exhibit a negative pressure, so that the auxiliary liquid can be sucked from the storage container 3.

In other words, the opening end of the end portion of the inner tube 22 may be disposed in a negative pressure region (NP) formed when the pressurized gas is injected from the air outlet 39. As described above, the auxiliary liquid is sucked by the negative pressure region (NP) by injecting the pressurized gas. Next, the auxiliary liquid is sucked and flows through the inner tube 22, and is sucked out from the open end.

At this time, in the vicinity of the outer side of the air outlet 39, the pressurized gas injected from the air outlet 39 is most rapidly expanded to exhibit a low pressure, so that the strongest auxiliary liquid suction force can be obtained. Further, by such a phenomenon that the pressurized gas rapidly expands, the auxiliary liquid sucked from the open end is finely dispersed and atomized. Therefore, according to the injection nozzle 6 of the present embodiment in which the cleaning liquid is used as the auxiliary liquid, the atomized cleaning liquid can be blown to the surface to be cleaned with the jet flow of the pressurized gas. Further, the movable body 26 that rotates while performing the polishing motion ejects the mixed gas of the atomized cleaning liquid and the pressurized gas, and the mixed gas expands the pressure of the pressurized gas while rotating and diffusing, so that it can be uniform and The high injection pressure blows the mixed gas to a large area of the surface to be cleaned.

Further, as described above, in the present embodiment, since the brush 26a is attached to the distal end of the movable body 26, the spray nozzle 6 can be directly wiped and washed by the brush 26a while using the cleaning liquid that is blown to the cleaning target. A net object to scrape tiny dirt or deposits. In addition, since the brush 26a is attached to the movable body 26 that rotates while performing the polishing operation with the connection portion 42 as a base point, the brush 26a also rotates while performing the polishing operation. Therefore, the contact angle of the bristles of the brush 26 with respect to the object to be washed is gradually changed, and the cleaning can be performed in three-dimensional motion, and the fine dirt or deposits remaining on the surface to be cleaned can be scraped from various directions. Therefore, the injection nozzle 6 of the present embodiment can more effectively remove the dirt or deposits deposited on the object to be cleaned, and can clean the object to be cleaned more cleanly.

Next, the action of the injection nozzle 6 of the present embodiment and the injection device 1 including the injection nozzle 6 will be explained. First, when the user operates the trigger 8 in the direction close to the body body 7, the flow rate adjusting unit 15 is turned on to start supplying air from the pressurized gas supply source 14. The air supplied from the pressurized gas supply source 14 is sucked into the body body 7 from the suction port 11, and then flows through the flow path 13 and is discharged from the discharge port 12. Next, the air flows through the flow path formed in the connected body 5, and further flows through the transport flow path formed in the outer tube 21, and is ejected from the ejection port.

When the air is ejected from the ejection port, a negative pressure region (NP) is formed around the ejection port. By forming this negative pressure region, the inner tube 22 also exhibits a negative pressure, and is sucked into the auxiliary liquid in the storage container 3. Next, the inhaled auxiliary liquid passes through the inner tube 22 and is finally ejected.

Further, when the air is ejected from the ejection port, the rotating body 24 starts to rotate by the propulsive force of the air ejected from the ejection port. Next, it will rotate while gradually accelerating, and the rotation reaches the specified speed. At this time, the eccentric body 25 attached to the rotating body 24 is orbitally moved in accordance with the rotation of the rotating body 24. Next, since the eccentric body 25 is coupled to the movable body 26 via the bearing 31, it can be orbitally moved without rotating the eccentric body 25. At this time, the movable body 26 receives the pressing force of the coil spring. Therefore, when the movable body 26 starts the orbital motion, the pushing force restricts the movement of the proximal end side.

The movement of the movable body 26 is also transmitted to the eccentric body 25 via the bearing 31. Therefore, in the eccentric body 25, when the fixing portion 41 rotates, the eccentric portion 43 starts the oscillating motion with the connecting portion 42 as the center of the oscillating motion. Therefore, the movable body 26 combines the orbital motion and the swinging motion, and the grinding motion is performed with the joint portion 42 as a base point.

When the movable body 26 performs a polishing motion, the effects shown below can be exhibited. In other words, when the movable body 26 performs the lapping motion, the brush 26a attached to the movable body 26 also performs the lapping motion. Therefore, for a certain washing object, since the end of the brush 26a is three-dimensionally rubbed from the various directions to clean the object, it is easier to clean the object to be cleaned. Further, even if the attached object adheres to the object to be washed, the attached matter can be more easily removed. Further, since the movement of the movable body 26 is easy to remove the fine dirt or deposits of the object to be cleaned, the injection pressure of the air supplied from the pressurized gas supply source 14 can be further reduced, or even if the blowing is restricted. The amount can also remove dirt or deposits. Therefore, it is possible to perform ejection even for a cleaning object requiring a finer ejection, and it can be used for a wider variety of cleaning objects.

Next, a second embodiment of the injection nozzle 6 of the present invention and the injection device 1 including the injection nozzle 6 will be described. Further, the configuration other than the injection nozzle 6 in the present embodiment is the same as that of the first embodiment described above, and therefore the description thereof will be omitted in the second embodiment.

Next, as shown in Fig. 3, the structure of the injection nozzle 6 of the present embodiment will be explained. The injection nozzle 6 can be connected to the downstream side of the operation unit 2 or the end side of the operation unit 2 by any conventional method such as screwing. Further, the injection nozzle 6 is an inner and outer double pipe structure including an outer pipe 21 and an inner pipe 22 inserted into the outer pipe 21. The air stored in the pressurized gas supply source 14 as a pressurized gas can be ejected from between the inner tube 22 and the outer tube 21. The auxiliary liquid stored in the storage container 3 as an auxiliary liquid supply source can be ejected from the inner tube 22, wherein the auxiliary liquid contains a liquid, a granule or a liquid granule mixture.

The structure of the outer tube 21 will be described below.

The outer tube 21 is provided with a fixed outer tube 23, a rotating body 24, an eccentric body 25, and a movable body 26 from the base end to the end, and the first bearing portion 27 and the movable body 26 are described later after the fixed outer tube 23 is formed. An elastic member 29 is disposed between the two carrier portions 28. That is, the outer tube 21 includes the fixed outer tube 23, the rotating body 24, the eccentric body 25, the movable body 26, and the elastic member 29. The base end portion of the fixed outer tube 23 is formed with a first carrier portion 27 formed to extend outward in the radial direction, and the base end portion communicates with the pressurized gas supply source 14. The rotating body 24 has a through hole 30 communicating with the fixed outer tube 23 therein, and is rotatably disposed at the end of the fixed outer tube 23, and the material thereof comprises a hard material. The eccentric body 25 is attached and fixed to the distal end portion of the rotating body 24. The movable body 26 is formed with a second carrier portion 28 that is formed to extend outward in the radial direction, and is attached and fixed to the eccentric body 25 via a bearing 31. The elastic member 29 is disposed between the first carrier portion 27 and the second carrier portion 28 and applies a pressing force to the movable body 26. Further, the movable body 26 can be attached with a brush for cleaning the object to be cleaned.

The structure of the fixed outer tube 23 will be described below.

The fixed outer tube 23 is disposed on the most proximal end side of the injection nozzle 6, and a connecting portion 32 that is coupled to the connecting body 5 is formed at an end portion (left side in FIG. 3) on the proximal end side. In the present embodiment, the connecting portion 32 is formed in a male screw shape and coupled to the connected portion 46 of the connecting body 5 formed in the female thread shape. However, the connecting portion 32 is only required to connect and fix the outer tube 23 and the connecting body 5 Yes, it can be other structures. Further, in the fixed outer tube 23, a first carrier portion 27 formed to extend outward in the radial direction from the fixed outer tube 23 is formed at a predetermined position on the proximal end side. The first bearing portion 27 is formed with a first bearing surface 32a on the distal end side, and is configured to contact one end of the elastic member 29 to be described later, and at the same time, can support the pressing force of the elastic member 29.

Further, the fixed outer tube 23 is formed in a tapered shape in which the outer diameter gradually decreases as it advances from the proximal end side toward the distal end side at a position where the distal end side of the distance connecting portion 32 is specified. Further, the fixed outer tube 23 is formed with a bearing attachment portion 33 on the more distal end side. The outer diameter of the bearing attachment portion 33 is formed into a groove shape which is thinner than other positions. In the present embodiment, the bearing attachment portion 33 is mounted with two bearings 31 via the spacer 33a. Further, the shape of the bearing mounting portion 33 or the number and configuration of the mounted bearings are not limited to the present embodiment. Further, the bearing 31 attached to the bearing attachment portion 33 can arbitrarily use a conventionally known element.

In the fixed outer tube 23, a through hole 23a penetratingly formed is formed in the longitudinal direction. The inner tube 22 can be inserted into the inside of the through hole 23a, and a conveying space 34 having a predetermined width is formed between the outer peripheral surface 22a of the inner tube 22 and the inner peripheral surface 21a of the fixed outer tube 23. The conveyance space 34 is a space for conveying the air supplied from the pressurized gas supply source 14 from the connection portion 32 toward the injection port, and is configured to sequentially transport the air having the specified pressure.

The structure of the rotating body 24 will be described below.

The rotating body 24 is provided on the end side of the fixed outer tube 23 so as to be rotatable relative to the fixed outer tube 23. The material of the rotating body 24 includes a hard material, and a through hole 30 communicating with the fixed outer tube 23 is disposed inside the material. A continuous conveying flow path in the injection nozzle 6 is formed by fixing the through hole of the outer tube 23 and the through hole 30 of the rotating body 24.

The rotating body 24 includes a rotating body 35 and a nozzle body 36. The rotator main body 35 is formed as a cylindrical body, and a through hole 30 is formed in the inside of the cylindrical body. The inner diameter of the through hole 30 is substantially the same diameter as the outer diameter of the bearing 31 attached to the fixed outer tube 23. The rotating body body 35 is formed with an insertion hole 24a at an end portion on the proximal end side, and the diameter of the insertion hole 24a is smaller than the inner diameter of the through hole 30. Further, in the inside of the through hole 30, the surface connecting the through hole 30 to the insertion hole 24a serves as a contact surface 24b which can come into contact with the bearing 31 attached to the bearing mounting portion 33 of the fixed outer tube 23. That is, the insertion hole 24a is formed to have a diameter larger than the outer diameter of the fixed outer tube 23 and smaller than the outer diameter of the bearing 31, and the contact surface 24b is formed to be able to contact the base end side surface of the bearing 31.

Further, the rotating body 24 is formed with a nozzle body 36 and a screw portion 37 for attaching and fixing the eccentric body 25 at the distal end portion. In the present embodiment, the threaded portion 37 is formed in a female thread shape on the inner circumferential surface of the through hole 30. This threaded portion 37 is formed to fix and fix the nozzle body 36 and the eccentric body 25 in a screwing manner.

The nozzle body 36 is formed at an end portion on the proximal end side so as to be screwed to the male screw of the screw portion 37, and a nozzle end portion 38 is formed from the proximal end portion toward the distal end portion. Further, the male screw is formed to be screwed to the screw portion 37 of the rotary body 24. The nozzle end portion 38 is a tubular member that extends from the base end portion of the nozzle body 36 toward the tip end portion. This nozzle tip end portion 38 has a blow port 39 at its end. The nozzle end portion 38 is formed with an air outlet 39 at a position shifted from the rotation axis of the rotating body 24 in the radial direction, and the air outlet 39 faces in a direction intersecting the rotation axis direction and the radial direction.

In the injection nozzle 6, the base end of the fixed outer tube 23 is hermetically connected to the end of the joint portion 32, thereby communicating the pressurized gas supply source 14 and the through hole 30. Therefore, by the operation of the trigger 8, the air supplied from the pressurized gas supply source 14 is ejected from the end of the through hole 30, and the reaction force is applied to the nozzle end portion 38, whereby the rotating body 24 rotates around the rotating shaft. . Further, the inner tube 22 is disposed inside the nozzle end portion 38, and the end position of the air outlet 39 and the end position of the inner tube 22 are disposed at substantially the same position.

The eccentric body 25 includes a fixing portion 41 , a dot-shaped connecting portion 42 , and an eccentric portion 43 . The fixing portion 41 is attached and fixed to the rotating body 24 . The dot-shaped connecting portion 42 is fixed to the fixing portion 41 in a dot shape, and the center of rotation of the point-shaped connecting portion 42 intersects at the end of the fixing portion 41 at the center of rotation of the fixing portion 41. The eccentric portion 43 has an outer peripheral surface, and the peripheral surface is in contact with the inner peripheral surface of the bearing 31. The eccentric body 25 is configured such that when the rotary body 24 starts to rotate, the urging force of the elastic member 29 is received, and the grinding operation is performed centering on the point-shaped connecting portion 42. The specific structure of the fixing portion 41, the eccentric portion 43, and the dot-shaped connecting portion 42 will be described below.

The fixing portion 41 is formed such that the proximal end side thereof can be screwed to the screw portion 37 of the rotating body 24, and a large diameter portion 44 is formed at a distal end portion thereof, and the large diameter portion 44 is formed to have an outer diameter larger than that of the threaded screw portion. Outer diameter. Further, the fixing portion 41 is formed with a through hole 45 penetrating therethrough. The through hole 45 is formed in a portion of the screw portion 37 so as to be coaxial with the rotation shaft of the rotating body 24. The portion of the through hole 45 formed in the large diameter portion 44 is formed so that the rotation axis of the rotating body 24 is shifted by a predetermined amount in the radial direction to form the center of the hole. In other words, the through hole 45 is formed to penetrate the portion of the hole portion formed in the screw portion 37 and the portion of the hole center formed in the large diameter portion 44 by a predetermined amount in the radial direction.

Further, a portion of the connecting portion 42 that protrudes from the inner circumferential surface of the through hole 45 is formed in a portion formed in the large diameter portion 44. The point-shaped connecting portion 42 is for connecting the fixing portion 41 and the eccentric portion 43 of the eccentric body 25, and is formed to be coupled to the connected portion 46 of the eccentric body 25 to be described later.

The eccentric portion 43 includes a connected portion 46 and a flange portion 47 on the proximal end side, and includes an eccentric portion body 49 in which the eccentric hole 48 is formed. A portion of the crotch portion 47 is formed in a groove shape from the proximal end side (the left side in the drawing) of the crotch portion 47 toward the distal end side (the right side in the drawing) to form the connected portion 46. The connected portion 46 is configured to be connectable to the connecting portion 42. When the connecting portion 46 is coupled, the eccentric portion 43 can be swung with respect to the fixed portion 41 with the point-shaped connecting portion 42 as a base point. Further, the proximal end side of the eccentric portion body 49 is inserted into a bearing 31 to be described later. That is, the eccentric portion body 49 has a peripheral surface that penetrates the inner peripheral hole of the bearing 31, and a male thread for mounting and fixing the fixing nut 51 is formed on the distal end side of the eccentric portion body 49, and the fixing nut 51 holds the bearing 31. Fixed to the outer peripheral surface. The eccentric hole 48 is formed to penetrate at a position where the center of the hole is located at a predetermined distance from the center of the axis of the eccentric portion 43. This eccentric hole 48 is formed to have a size through which the nozzle end portion 38 can penetrate.

When the rotating body 24 starts to rotate, the eccentric body 25 starts to rotate together with the rotating body 24. When the rotating body 24 starts to rotate, the fixing portion 41 attached to the rotating body 24 is similarly started to rotate coaxially with the rotating shaft of the rotating body 24. Next, the fixing portion 41 also transmits a rotational force to the eccentric portion 43 connected to the coupling portion 42, and the eccentric portion 43 also starts to rotate. At this time, the through hole 45 in the fixing portion 41 is shifted by a predetermined distance from the center of the shaft of the rotating body 24, and the eccentric portion 43 is attached to the through hole 45 via the connecting portion 42. Therefore, when the rotating body 24 starts to rotate, the eccentric portion 43 performs an orbital movement which is performed in an eccentric state in which the center of the axis of the rotating body 24 is shifted by only a predetermined distance.

As described above, the bearing 31 is mounted on the outer peripheral surface of the eccentric portion 43. That is, the outer diameter of the outer peripheral surface of the eccentric portion 43 is formed to be substantially the same as the inner diameter of the inner peripheral surface of the bearing 31, and the bearing 31 can be attached to the eccentric portion 43. Next, the bearing 31 is fixed by a fixing nut 51 after installation.

The movable body 26 is a member formed of a material such as a resin, and is attached and fixed to the rotating body 24 via a bearing 31. That is, since the bearing 31 is located between the movable body 26 and the rotating body 24, the movable body 26 does not rotate even if the rotating body 24 rotates.

The movable body 26 is formed in such a manner that the end surface on the proximal end side becomes the second carrier portion 28 and is disposed to face the first carrier portion 27. The elastic member 29 to be described later is disposed between the first carrier portion 27 and the second carrier portion 28, and the second carrier portion 28 is formed to be capable of contacting the other end portion of the coil spring as the elastic member 29 to be described later, and is capable of withstanding the coil spring The elastic force is also the pushing force.

Further, the movable body 26 is formed in a stepped shape in which the inner diameter thereof increases from the base end toward the end, and the bearing attachment portion 52 for inserting the bearing 31 is formed therein. The bearing attachment portion 52 is a portion in which the inner diameter formed in the inside of the movable body 26 is substantially the same as the outer circumferential surface of the bearing 31. By inserting the bearing 31 therein, the movable body 26 is attached to the rotating body 24 via the bearing 31.

The brush 26a is attached and fixed to the outer peripheral side of the movable body, and has a brush body 26b for scraping the dirt of the cleaning object at the distal end thereof, and a fixing portion 26c to be attached and fixed to the movable body 26 at the proximal end thereof. The brush 26a can be arbitrarily selected using conventionally known elements. Further, the hardness, length, and the like of the brush body 26b can be arbitrarily selected and used. Further, in the present embodiment, a method of attaching and fixing the brush 26a to the movable body 26 using a thread is employed, but other methods may be employed.

The coil spring as the elastic member 29 is disposed between the first carrier portion 27 and the second carrier portion 28, and is formed to be capable of applying a pressing force of a predetermined size to the first carrier portion 27 and the second carrier portion 28. The fixed outer tube 23 and the rotating body 24 are disposed in the coil spring, and the entire size of the injection nozzle 6 can be compacted. In addition, the elastic member 29 can apply a predetermined amount of pressing force to the first carrier portion 27 and the second carrier portion 28, in other words, a predetermined amount of pressing force can be applied to the movable body 26, but the entire injection nozzle 6 is tightened. From the viewpoint of size, it is preferable to use a coil spring.

The proximal end side of the inner tube 22 penetrates and fixes the outer tube 23, and the distal end side of the inner tube 22 communicates with the air outlet 39 of the rotating body 24. The base end of the inner tube 22 communicates with the storage container 3. In the inner tube 22, in the injection nozzle 6, the base end side (left side in FIG. 2) of the inner tube 22 penetrates the fixed outer tube 23, and the base end of the inner tube 22 is inserted into the inside of the storage container 3 and communicates Here, the container 3 is stored. Further, in the injection nozzle 6, the end side (the right side in FIG. 2) of the inner tube 22 communicates with the air outlet 39 of the rotary body 24. That is, in the injection device 1, the base end side (the left side in FIG. 2) of the inner tube 22 communicates with the storage container 3 via the switching valve operating member 4, and the intermediate portion thereof penetrates and fixes the outer tube 23, and the end portion thereof ( The right side of the rotating body 24 is inserted into the through hole 30 provided in the right side of FIG.

Moreover, the inner tube 22 can be formed using a flexible tube having flexibility. The reason for this is that since the storage pressure in the storage container 3 is applied to the inner tube 22, that is, the pressure at the atmospheric pressure, the inner tube 22 is made of a soft material, and the end portion of the inner tube 22 can be well followed. The rotating body 24 rotates. The material of the flexible tube used in the inner tube 22 may include a flexible synthetic resin such as nylon, polytetrafluoroethylene, polyurethane or polypropylene. In this case, the inner tube 22 can be protected by including the tube 21 that fixes the outer tube 23 and the rotating body 24. Therefore, even in the case where a flexible tube formed of a soft material is used for the inner tube 22, the end portion of the inner tube 22 is not exposed. Therefore, the inner tube 22 does not collide with the object to be washed and is worn out or the inner tube 22 does not cause damage to the object to be cleaned or the like due to the impact.

The inner tube 22 can also be constructed to use a continuous flexible tube from the base end to the end. In addition, for example, in other aspects, the inner tube 22 can also be configured to fix the inner tube 22 and the rotating inner tube 22, and the fixed inner tube 22 is a portion that penetrates and fixes the inner portion of the outer tube 23 and is made of a hard plastic or metal. The end of the fixed inner tube 22 is provided with a rotating inner tube 22 using a flexible tube to enable it to rotate.

The open end of the end side of the inner tube 22 may be slightly protruded from the air outlet 39, or may be disposed inside the through hole 30 constituting the rotating body 24 of the outer tube 21, or may be maintained near the end of the fixed outer tube 23. . If the end portion of the inner tube 22 is disposed in this manner, a negative pressure region (NP) can be formed in the vicinity of the air outlet 39 or from the inside of the through hole 30 to the end of the fixed outer tube 23 by injecting air from the air outlet 39. This causes the inside of the inner tube 22 to also exhibit a negative pressure, so that the auxiliary liquid can be sucked from the storage container 3.

In other words, the opening end of the end portion of the inner tube 22 may be disposed in a negative pressure region (NP) formed when the pressurized gas is injected from the air outlet 39. As described above, the auxiliary liquid is sucked by the negative pressure region (NP) by injecting the pressurized gas. Next, the auxiliary liquid is sucked and flows through the inner tube 22, and is sucked out from the open end. The negative pressure region (NP) may be formed inside the through hole 30 in addition to the vicinity of the outer side of the air outlet 39.

At this time, in the vicinity of the outer side of the air outlet 39, the pressurized gas injected from the air outlet 39 is most rapidly expanded to exhibit a low pressure, so that the strongest auxiliary liquid suction force can be obtained. Further, by such a phenomenon that the pressurized gas rapidly expands, the auxiliary liquid sucked from the open end is finely dispersed and atomized. Therefore, according to the injection nozzle 6 of the present embodiment in which the cleaning liquid is used as the auxiliary liquid, the atomized cleaning liquid can be blown to the surface to be cleaned with the jet flow of the pressurized gas. Further, the movable body 26 that rotates while performing the polishing motion ejects the mixed gas of the atomized cleaning liquid and the pressurized gas, and the mixed gas expands the pressure of the pressurized gas while rotating and diffusing, so that it can be uniform and The high injection pressure blows the mixed gas to a large area of the surface to be cleaned.

Further, as described above, in the present embodiment, since the brush 26a is attached to the distal end of the movable body 26, the spray nozzle 6 can be directly wiped and washed by the brush 26a while using the cleaning liquid that is blown to the cleaning target. A net object to scrape tiny dirt or deposits. In addition, since the brush 26a is attached to the movable body 26 that rotates while performing the polishing operation with the point-like connecting portion 42 as a base point, the brush 26a also rotates while performing the polishing operation. Therefore, the contact angle of the bristles of the brush 26 with respect to the object to be washed is gradually changed, and the cleaning can be performed in three-dimensional motion, and the fine dirt or deposits remaining on the surface to be cleaned can be scraped from various directions. Therefore, the injection nozzle 6 of the present embodiment can more effectively remove the dirt or deposits deposited on the object to be cleaned, and can clean the object to be cleaned more cleanly.

Next, the action of the injection nozzle 6 of the present embodiment and the injection device 1 including the injection nozzle 6 will be explained. First, when the user operates the trigger 8 in the direction close to the body body 7, the flow rate adjusting unit 15 is turned on to start supplying air from the pressurized gas supply source 14. The air supplied from the pressurized gas supply source 14 is sucked into the body body 7 from the suction port 11, and then flows through the flow path 13 and is discharged from the discharge port 12. Next, the air flows through the flow path formed in the connected body 5, and further flows through the transport flow path formed in the outer tube 21, and is ejected from the ejection port.

When the air is ejected from the ejection port, a negative pressure region (NP) is formed around the ejection port. By forming this negative pressure region, the inner tube 22 also exhibits a negative pressure, and is sucked into the auxiliary liquid in the storage container 3. Next, the inhaled auxiliary liquid passes through the inner tube 22 and is finally ejected.

Further, when the air is ejected from the ejection port, the rotating body 24 starts to rotate by the propulsive force of the air ejected from the ejection port. Next, it will rotate while gradually accelerating, and the rotation reaches the specified speed. At this time, the eccentric body 25 attached to the rotating body 24 is orbitally moved in accordance with the rotation of the rotating body 24. Next, since the eccentric body 25 is coupled to the movable body 26 via the bearing 31, it can be orbitally moved without rotating the eccentric body 25. At this time, the movable body 26 receives the pressing force of the coil spring. Therefore, when the movable body 26 starts the orbital motion, the pushing force restricts the movement of the proximal end side.

The movement of the movable body 26 is also transmitted to the eccentric body 25 via the bearing 31. Therefore, in the eccentric body 25, when the fixing portion 41 rotates, the eccentric portion 43 starts the oscillating motion with the connecting portion 42 as the center of the oscillating motion. Therefore, the movable body 26 combines the orbital motion and the swinging motion, and performs the lapping motion with the point-like connecting portion 42 as a base point.

When the movable body 26 performs a polishing motion, the effects shown below can be exhibited. In other words, when the movable body 26 performs the lapping motion, the brush 26a attached to the movable body 26 also performs the lapping motion. Therefore, for a certain washing object, since the end of the brush 26a is three-dimensionally rubbed from the various directions to clean the object, it is easier to clean the object to be cleaned. Further, even if the attached object adheres to the object to be washed, the attached matter can be more easily removed. Further, since the movement of the movable body 26 is easy to remove the fine dirt or deposits of the object to be cleaned, the injection pressure of the air supplied from the pressurized gas supply source 14 can be further reduced, or even if the blowing is restricted. The amount can also remove dirt or deposits. Therefore, it is possible to perform ejection even for a cleaning object requiring a finer ejection, and it can be used for a wider variety of cleaning objects.

Next, a third embodiment of the injection nozzle 61 of the present invention and the injection device 1 including the injection nozzle 61 will be described. Further, the configuration other than the injection nozzle 61 in the present embodiment is the same as that of the second embodiment described above, and the description thereof will be omitted in the third embodiment.

As shown in Fig. 4, the injection nozzle 61 of the present embodiment is an inner and outer double tube structure including an outer tube 62 and an inner tube 63 inserted into the outer tube 62. The pressurized gas stored in the pressurized gas supply source 14 can be ejected from between the inner tube 63 and the outer tube 62. The auxiliary liquid stored in the storage container 3 as an auxiliary liquid supply source can be ejected from the inner tube 63, wherein the auxiliary liquid contains a liquid, a powder or a liquid powder mixture. Further, the structure of the inner tube 63 is the same as that of the second embodiment described above, and therefore only the structure of the outer tube 62 will be described.

The outer tube 62 includes a fixed outer tube 64, a fixing pin member 65, a rotating body 66, an eccentric body 67, a movable body 68, and an elastic member (not shown in FIG. 4) from the base end to the end. That is, the structure of the outer tube 62 is as follows. The base end portion of the fixed outer tube 64 is formed with a first carrier portion 27 formed to extend outward in the radial direction, and the base end portion communicates with the pressurized gas supply source 14. The fixing pin member 65 is disposed at a designated position in the longitudinal direction of the fixed outer tube 64. The rotating body 66 has a through hole 30 communicating with the fixed outer tube 64 therein, and is rotatably provided at the end of the fixed outer tube 64, and the material thereof comprises a hard material. The eccentric body 67 is attached and fixed to the distal end portion of the rotating body 66. The movable body 68 includes a joint portion that is joined to the fixing pin member 65, and has a second carrier portion 72 that is formed to extend outward in the radial direction, and is attached and fixed to the eccentric body 67 via the bearing 31. The elastic member (not shown in FIG. 4 ) is disposed between the first carrier portion 27 and the second carrier portion 72 and applies a pressing force to the movable body 68 . The structure is configured to receive a pressing force of the elastic member (not shown in FIG. 4) when the rotating body 66 starts to rotate, and the movable body 68 is ground at a joint point between the fixing pin member 65 and the joint portion. motion. Further, the structure of the fixed outer tube 64, the rotating body 66, and the elastic member (not shown in FIG. 4) is the same as that of the second embodiment described above, and thus the description thereof will be omitted.

The fixing pin member 65 is disposed at a predetermined position in the longitudinal direction of the fixed outer tube 64, and can be attached and fixed to the outer circumference of the fixed outer tube 64 by screwing or the like. The fixing pin member 65 is formed to protrude outward in the radial direction, and the material thereof contains a resin material. The fixing pin member 65 is formed to be joined to a joint portion to be described later included in the movable body 68. Further, in the present embodiment, an example in which the fixing pin member 65 is formed of a resin material will be described. However, the material forming the fixing pin member 65 may be a material other than the resin material.

The eccentric body 67 is attached to the distal end portion of the rotating body 66, and is disposed so as to protrude only a prescribed amount from the distal end of the rotating body 66 toward the longitudinal direction when mounted to the rotating body 66. The eccentric body 67 is formed with a mounting fixing portion 69 that is attached and fixed to the rotating body 66 on the proximal end side, and a bearing mounting portion 70 for mounting the bearing 31 is formed on the distal end side. The mounting fixing portion 69 is formed with a male screw that can be screwed with a female screw formed on the inner circumferential surface of the rotating body 66, and the male screw 67 and the female screw are screwed to each other to connect the eccentric body 67 to the rotating body. 66. Further, the mounting fixing portion 69 is formed such that the rotation axis of the rotating body 66 and the rotation axis of the mounting fixing portion 69 are coaxial with each other. On the other hand, the bearing attachment portion 70 is formed at a position shifted by a predetermined amount outward in the radial direction from the center of the axis of the rotation shaft. That is, the bearing attachment portion 70 is eccentrically formed at a predetermined position shifted in the radial direction with respect to the rotation axis.

Further, the opening hole 71 formed in the eccentric body 67 may be formed between the base end side and the end side, and the axis is offset from the center of the hole. That is, the opening hole 71 is formed in such a manner that the center of the hole on the proximal end side is located at the same position as the center of the axis of the rotating body 66, whereas the center of the hole on the distal end side is located at the center of the axis of the rotating body 66. The direction is only offset by the specified amount.

The movable body 68 is formed in a cover shape that completely covers the rotating body 66. In the present embodiment, the structure of the movable body 68 is divided into a proximal end side and a distal end side, and a joint portion 73 joined to the fixed pin member 65 is formed. The joint portion 73 is formed in a groove shape, and the width of the groove portion is substantially the same as the outer diameter of the fixing pin member 65. When the movable body 68 performs a grinding motion to be described later, the joint portion 73 serves as a base point of the grinding motion. .

Further, the movable body 68 is formed by attaching and fixing a bearing 31 located between the movable body 68 and the eccentric body 67. Since the movable body 68 is coupled to the eccentric body 67 via the bearing 31, the movable body 68 is configured such that when the eccentric body 67 moves eccentrically as the rotating body 66 rotates, the grinding motion is performed via the bearing 31. Further, the end surface on the proximal end side of the movable body 68 is formed as a second carrying portion 72, and the second carrying portion 72 is in contact with an end portion of a coil spring which is an elastic member (not shown in Fig. 4).

In such a configuration, the action of the injection nozzle 61 of the present embodiment and the injection device 1 having the injection nozzle 61 will be explained. First, when the user operates the trigger 8 in the direction close to the body body 7, the flow rate adjusting unit 15 is turned on to start supplying air from the pressurized gas supply source 14. The air supplied from the pressurized gas supply source 14 is sucked into the body body 7 from the suction port 11, and then flows through the flow path 13 and is discharged from the discharge port 12. Next, the air then flows through the flow path formed in the connected body 5, further flows through the transport flow path formed in the outer tube 62, and is ejected from the ejection port.

When the air is ejected from the ejection port, a negative pressure region (NP) is formed around the ejection port. By forming this negative pressure region, the inner tube 63 also exhibits a negative pressure, and is sucked into the auxiliary liquid in the storage container 3. Next, the inhaled auxiliary liquid passes through the inner tube 63 and is finally ejected.

Further, when the air is ejected from the ejection port, the rotating body 66 starts to rotate by the propulsive force of the air ejected from the ejection port. Next, it will rotate while gradually accelerating, and the rotation reaches the specified speed. At this time, the eccentric body 67 attached to the rotating body 66 is orbitally moved in accordance with the rotation of the rotating body 66, and the orbital motion is a motion that is eccentrically shifted by a predetermined distance from the center of rotation of the rotating body 66. Next, since the eccentric body 67 is coupled to the movable body 68 via the bearing 31, it can be orbitally moved without rotating the eccentric body 67. At this time, the movable body 68 receives the urging force from the coil spring on the second carrying portion 72. Therefore, when the movable body 68 starts the orbital motion, the pressing force from the coil spring restricts the movement of the proximal end side.

In the present embodiment, since the eccentric body 67 performs the orbital motion, the movement of the base end side by the movement of the eccentric body and the action of the coil spring restricts the orbital motion of the base end side, so that the joint of the joint portion 73 of the movable body 68 as a whole is The base point performs a grinding motion.

When the movable body 68 performs the polishing operation, the same effects as those described in the second embodiment described above can be obtained. In other words, according to the injection nozzle 61 of the present invention and the injection device 1 including the injection nozzle 61, the same effects as those described in the second embodiment can be achieved even in the configuration of the present embodiment. .

As described above, the injection nozzle of the present invention and the injection device including the injection nozzle have been described in detail. However, the injection nozzle of the present invention and the injection device including the injection nozzle are not limited thereto, and the scope of the present invention is not deviated. It can also be changed as appropriate.

1‧‧‧jetting device
2‧‧‧Operation Department
3‧‧‧ storage container
4‧‧‧Switching valve operating member
5‧‧‧Connected body
6, 61‧‧‧ spray nozzle
7‧‧‧ gun body
8‧‧‧ Trigger
9‧‧‧ input
10‧‧‧ Output
11‧‧‧Inhalation
12‧‧‧Export
13‧‧‧Circulation path
14‧‧‧Compressed gas supply
15‧‧‧Flow Adjustment Department
16‧‧‧Operator
21, 62‧‧‧ outside management
21a‧‧‧ inner circumference
22, 63‧‧‧ internal management
22a‧‧‧ outer perimeter
23, 64‧‧‧ fixed outer tube
23a‧‧‧through holes
24, 66‧‧‧ rotating body
24a‧‧‧ insertion hole
24b‧‧‧Contact surface
25, 67‧‧‧ eccentric body
26, 68‧‧‧ movable body
26a‧‧‧Brush
26b‧‧‧brush body
26c‧‧‧Fixed Department
27‧‧‧First load bearing department
28, 72‧‧‧Second load bearing department
29‧‧‧Flexible components
29'‧‧‧Shell
30‧‧‧through hole
31‧‧‧ bearing
32‧‧‧Connecting Department
32a‧‧‧First bearing surface
33‧‧‧ Bearing Installation Department
33a, 33b‧‧‧ spacers
34‧‧‧Transport space
35‧‧‧Rotating body
36‧‧‧Nozzle body
37‧‧‧Threading Department
38‧‧‧ nozzle tip
39‧‧‧Blowing out
41‧‧‧ Fixed Department
42‧‧‧Connecting Department
43‧‧‧Eccentric
44‧‧‧The Great Trails Department
45‧‧‧through holes
46‧‧‧Connected Department
47‧‧‧锷
48‧‧‧Eccentric hole
49‧‧‧Eccentric body
51‧‧‧Fixed nuts
52‧‧‧ Bearing Installation Department
65‧‧‧Fixed pin members
69‧‧‧Installation and fixing department
70‧‧‧ Bearing Installation Department
71‧‧‧Open hole
73‧‧‧ joints

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a first embodiment of the spray nozzle of the present invention. Figure 2 is a front elevational view of the spray device of the present invention. Figure 3 is a cross-sectional view showing a second embodiment of the spray nozzle of the present invention. Fig. 4 is a cross-sectional view showing a third embodiment of the injection nozzle of the present invention.

Claims (13)

An injection nozzle comprising: an inner and outer double tube structure, comprising an outer tube and an inner tube inserted into the outer tube, and configured for storing a pressurized gas from a pressurized gas supply source from the inner tube and the outer tube Between the injection and the auxiliary liquid for storing the auxiliary liquid from the inner tube, wherein the auxiliary liquid comprises a liquid, a powder or a liquid powder mixture; wherein the outer tube The method includes: a fixed outer tube, a base end portion of the fixed outer tube is formed with a first bearing portion extending outward in the radial direction, and the base end portion is connected to the pressurized gas supply source; Having a through hole communicating with the fixed outer tube inside the rotating body, and the rotating body is rotatably disposed at an end of the fixed outer tube, the material of the rotating body comprises a hard material; a spacer is filled Fixing the through hole between the outer tube and the rotating body; an eccentric body is fixedly mounted on the end portion of the rotating body; and a movable body is formed with a second carrying portion extending outward in the radial direction, and the Movable body via a bearing Mounting and fixing the eccentric body; and an elastic member disposed between the first bearing portion and the second bearing portion, and applying a pressing force to the movable body; wherein the eccentric body comprises: a fixing portion, the fixing portion is fixed a rotating portion; a connecting portion fixed to the fixing portion, wherein the connecting portion has a rotation center intersecting the rotation center of the fixing portion at an end of the fixing portion; and an eccentric portion having an outer peripheral surface, The outer peripheral surface is in contact with an inner peripheral surface of the bearing; wherein, when the rotating body starts to rotate, the pressing force of the elastic member is received, and the grinding portion is grounded by the connecting portion. The spray nozzle of claim 1, wherein the movable body comprises a brush for cleaning a cleaned object. The injection nozzle of claim 2, wherein the elastic member is a coil spring. The injection nozzle of claim 1, wherein the elastic member is a coil spring. An injection nozzle comprising: an inner and outer double tube structure, comprising an outer tube and an inner tube inserted into the outer tube, and configured for storing a pressurized gas from a pressurized gas supply source from the inner tube and the outer tube Between the injection and the auxiliary liquid for storing the auxiliary liquid from the inner tube, wherein the auxiliary liquid comprises a liquid, a powder or a liquid powder mixture; wherein the outer tube The method includes: a fixed outer tube, a base end portion of the fixed outer tube is formed with a first bearing portion extending outward in the radial direction, and the base end portion is connected to the pressurized gas supply source; The inside of the rotating body has a through hole communicating with the fixed outer tube, and the rotating body is rotatably disposed at the end of the fixed outer tube. The material of the rotating body comprises a hard material; an eccentric body is fixedly mounted. a movable body formed with a second carrying portion extending outward in the radial direction, and the movable body is mounted and fixed to the eccentric body via a bearing; and an elastic member is disposed on the elastic body The first a pressing force is applied between the carrying portion and the second carrying portion, wherein the eccentric body comprises: a fixing portion fixed to the rotating body; and a connecting portion fixed to the fixing portion in a dot shape And the rotation center of the connection portion intersects the rotation center of the fixing portion at the end of the fixing portion; and an eccentric portion having an outer circumferential surface, the outer circumferential surface contacting an inner circumferential surface of the bearing; wherein When the rotating body starts to rotate, the pressing force of the elastic member is received, and the grinding operation is performed based on the connecting portion. The spray nozzle of claim 5, wherein the movable body comprises a brush for cleaning a cleaned object. The injection nozzle of claim 6, wherein the elastic member is a coil spring. The injection nozzle of claim 5, wherein the elastic member is a coil spring. An injection nozzle comprising: an inner and outer double tube structure, comprising an outer tube and an inner tube inserted into the outer tube, and configured for storing a pressurized gas from a pressurized gas supply source from the inner tube and the outer tube Between the injection and the auxiliary liquid for storing the auxiliary liquid from the inner tube, wherein the auxiliary liquid comprises a liquid, a powder or a liquid powder mixture; wherein the outer tube The method includes: a fixed outer tube, a base end portion of the fixed outer tube is formed with a first bearing portion extending outward in the radial direction, and the base end portion is connected to the pressurized gas supply source; a member disposed at a designated position in a longitudinal direction of the fixed outer tube; a rotating body having a through hole communicating with the fixed outer tube inside the rotating body, and the rotating body is rotatably disposed on the fixed outer tube The end of the rotating body comprises a hard material; an eccentric body is fixedly mounted on the end portion of the rotating body; and a movable body includes a joint portion joined to the fixing pin member and formed to extend outward in the radial direction shape a second carrying portion, the movable body is mounted and fixed to the eccentric body via a bearing; and an elastic member disposed between the first carrying portion and the second carrying portion, and applying a pressing force to the movable body Wherein, when the rotating body starts to rotate, the pressing force of the elastic member is received, and the movable body performs a grinding motion based on a joint point of the fixing pin member and the joint portion. The spray nozzle of claim 9, wherein the movable body comprises a brush for cleaning a cleaned object. The spray nozzle of claim 10, wherein the elastic member is a coil spring. The spray nozzle of claim 9, wherein the elastic member is a coil spring. An injection device comprising the injection nozzle of any one of claims 1 to 12.