Ejection device and unmanned aerial vehicle
By introducing a combination of a buffer and a pressing part into the spraying device, the problem of component breakage caused by excessive force in the aerosol container is solved, and the stable spraying and durability of the device are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TOYO SEIKAN KAISHA LTD
- Filing Date
- 2021-08-19
- Publication Date
- 2026-06-23
Smart Images
Figure CN116096503B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a spraying device and a drone. Background Technology
[0002] Previously, a limit switch with an overtravel mechanism for absorbing excessive force was known (for example, see Patent Document 1).
[0003] Patent Document 1: Japanese Patent Application Publication No. 2018-085239
[0004] The problem that the invention aims to solve
[0005] In spraying devices that contain aerosol containers, parts can sometimes break due to excessive force.
[0006] General Disclosure
[0007] In a first aspect of the present invention, a dispensing device is provided, which is a dispensing device capable of loading and unloading aerosol containers, and includes: a pressing part for pressing a valve stem for opening and closing a valve of the aerosol container; and a buffer part for buffering an excess force, wherein the excess force is the force of the pressing part pressing the valve stem exceeding the force for opening the valve.
[0008] The buffer can buffer the excessive force applied to the pressing part by moving the pressing part according to the excessive force.
[0009] The buffer section can buffer the excessive force applied to the aerosol container by moving the aerosol container according to the excessive force.
[0010] The ejection device may include a container holding section for containing the aerosol container. The container holding section may include: a first receiving member for containing one end of the aerosol container; and a second receiving member connected to the first receiving member for containing the other end of the aerosol container. A buffer section may connect the first receiving member and the second receiving member, and, depending on the excess force, change the relative position of the first receiving member and the second receiving member, thereby buffering the excess force.
[0011] The ejection device may have an anti-exposure part that prevents the interior of the container holding part from being exposed between the first receiving member and the second receiving member.
[0012] The buffer section may have a spring lock with an elastic part installed in the container holding section.
[0013] The buffer section may have a buffer structure integrally provided with the container holding section.
[0014] The ejection device may include multiple buffer sections that connect the first receiving component and the second receiving component. The multiple buffer sections may be arranged symmetrically about the aerosol container.
[0015] The pressing part can be connected to the first receiving member, and the spraying drive part for driving the aerosol container is connected to the second receiving member.
[0016] The ejection device may have a connecting part for connecting the container holding part to the fixing part provided on the outside.
[0017] The buffer section may have a buffer elastic section for buffering excessive force.
[0018] The buffer section may have a preloading mechanism that applies a preload to the buffer elastic section.
[0019] The ejection device may have an ejection drive unit that supplies a driving force for ejecting the contents from the aerosol container, and the driving force may be generated by the driving force.
[0020] The ejection device may include a drive mechanism housing for housing the ejection drive unit and the pressing unit. The ejection drive unit can generate driving force from the valve stem side of the aerosol container toward the bottom side, and the drive mechanism housing can be fixed to the aerosol container.
[0021] A buffer section can be installed in the ejection drive section to buffer the excessive force inside the ejection drive section.
[0022] A buffer section may be provided in the ejection drive section, and a suppression mechanism is provided in the ejection drive section to suppress the generation of excessive force.
[0023] When viewed from the side along the long axis of the aerosol container, the buffer section can be located on the outer side of the outer periphery of the aerosol container.
[0024] When the valve is closed, the ejection device may have a gap between the valve stem and the pressing part.
[0025] The ejection device may have a valve stem elastic part connected to the valve stem, and the over-force may be an over-travel force that exceeds the width of the gap and the valve stem stroke of the valve stem elastic part.
[0026] In a second aspect of the present invention, a drone equipped with the ejection device of the first aspect of the present invention is provided.
[0027] Furthermore, the summary of the invention does not list all the features of the invention. Additionally, sub-combinations of these feature groups can also constitute an invention. Attached Figure Description
[0028] Figure 1A This illustrates an example of the configuration of the ejection device 100.
[0029] Figure 1B This is an enlarged view of the valve stem structure of aerosol container 150.
[0030] Figure 1C This is an enlarged view of the periphery of the preloaded buffer section 20.
[0031] Figure 1D This is a diagram used to illustrate the operation of the ejection device 100.
[0032] Figure 1E Indicates and Figure 1D The corresponding actions of the ejection drive unit 80 in each step.
[0033] Figure 2 This illustrates an example of the configuration of the ejection device 100.
[0034] Figure 3 This illustrates an example of the configuration of the ejection device 100.
[0035] Figure 4A This illustrates an example of the configuration of the ejection device 100.
[0036] Figure 4B express Figure 4A YZ cross-sectional view of the ejection device 100.
[0037] Figure 4C This illustrates an example of the configuration of the ejection device 100.
[0038] Figure 4D This illustrates an example of the configuration of the ejection device 100.
[0039] Figure 5A This illustrates an example of the configuration of the ejection device 100.
[0040] Figure 5B Indicates and Figure 5A 100 different cross-sectional views of the ejection device.
[0041] Figure 5C This is an example of the structure of the suppression mechanism 26.
[0042] Figure 6A This illustrates an example of a spraying device 100 having a spraying drive unit 80 on the valve stem side.
[0043] Figure 6B This describes a modified example of an ejection device 100 having an ejection drive unit 80 on the valve stem side.
[0044] Figure 7A This illustrates an example of the configuration of an ejection device 100 equipped with a drive mechanism housing 86.
[0045] Figure 7B This refers to a modified example of an ejection device 100 equipped with a drive mechanism housing 86.
[0046] Figure 8 This illustrates an example of the configuration of a drone 200 equipped with an ejection device 100.
[0047] Figure 9 This represents a modified example of the ejection device 100. Detailed Implementation
[0048] The present invention will now be described through embodiments thereof; however, these embodiments do not limit the invention as described in the claims. Furthermore, all combinations of features described in the embodiments are not necessarily necessary for the solution of the invention.
[0049] In this specification, orthogonal coordinate axes of X, Y, and Z are sometimes used to illustrate technical matters. The orthogonal coordinate system in this example is a so-called right-handed system. In the case where the aerosol container 150 described below has a major axis and a minor axis, the X-axis corresponds to the major axis of the aerosol container 150.
[0050] Figure 1A This illustrates an example of the configuration of the aerosol ejection device 100. The ejection device 100 in this example includes a pressing part 10, a buffer part 20, a container holding part 40, an ejection part 50, and an ejection drive part 80. The ejection device 100 is capable of loading and unloading the aerosol container 150.
[0051] The aerosol container 150 uses air pressure to eject the contents filled inside. For example, the aerosol container 150 ejects its contents using the air pressure of the liquefied or compressed gas filled inside, depending on the opening of a valve. In this example, the aerosol container 150 is a metal aerosol can. The aerosol container 150 can also be a pressure-resistant plastic container.
[0052] In addition, liquefied gases such as hydrocarbons (liquefied petroleum gas) (LPG), dimethyl ether (DME), or hydrofluorocarbons (HFO-1234ze) can be used as propellants. Alternatively, compressed gases such as carbon dioxide (CO2), nitrogen (N2), or nitrous oxide (N2O) can also be used as propellants.
[0053] The pressing part 10 presses the valve stem 12 of the valve used to open and close the aerosol container 150. The pressing part 10 can be an actuator for pressing the valve stem 12. In this example, the pressing part 10 is provided in direct contact with the valve stem 12. In addition, the pressing part 10 may have a flow path corresponding to the ejection direction.
[0054] The valve stem 12 is pressed by the pressing part 10, causing the contents to be ejected from the aerosol container 150. In this example, the valve stem 12 is built into the aerosol container 150, but it can also be installed externally separately from the aerosol container 150.
[0055] The buffer section 20 buffers the force exerted by the pressing section 10 on the valve stem 12, which exceeds the force required to open the valve. This excess force can be generated by the driving force from the ejection drive section 80. In this example, the buffer section 20 has a buffer elastic section 21 connected to the valve stem 12. In this example, the buffer section 20 is provided on the valve stem side of the aerosol container 150, but is not limited to this. The valve stem side of the aerosol container 150 refers to the region further to the negative side in the X-axis direction than the aerosol container 150.
[0056] The buffer elastic part 21 is an elastic part used to buffer excessive force by means of the buffer part 20. In this example, the buffer elastic part 21 is a spring with a predetermined natural length L. In this example, the buffer elastic part 21 is a compression spring. In addition, depending on the position of the buffer part 20, the buffer elastic part 21 may also be a tension spring.
[0057] The container holding part 40 holds the aerosol container 150. The container holding part 40 may completely cover the circumference of the aerosol container 150 or cover a portion thereof. The container holding part 40 has a first receiving member 41 and a second receiving member 42. In this example, the container holding part 40 has a protrusion 43 and a holding part 44.
[0058] The material of the container holding part 40 is not particularly limited as long as it can hold the aerosol container 150. For example, the material of the container holding part 40 may include metals such as aluminum, plastics, or high-strength and lightweight raw materials such as carbon fiber. In addition, the material of the container holding part 40 is not limited to rigid materials, but may also include soft materials, such as silicone rubber or polyurethane foam.
[0059] The first receiving member 41 receives one end of the aerosol container 150. In this example, the first receiving member 41 receives the valve stem side of the aerosol container 150. In this example, the first receiving member 41 has a conical or dome-shaped curved surface with a rounded front end, but is not limited to this.
[0060] The second receiving member 42 is connected to the first receiving member 41 and receives the other end of the aerosol container 150. In this example, the second receiving member 42 covers the bottom end of the aerosol container 150 opposite to the valve stem side. The second receiving member 42 can receive the ejection drive unit 80. In this example, the second receiving member 42 has a conical or dome-shaped curved surface with a rounded front end, but is not limited to this. The second receiving member 42 can be detachably installed from the first receiving member 41.
[0061] A protrusion 43 is provided inside the container holding portion 40 to hold the aerosol container 150 in a predetermined position. In this example, the protrusion 43 holds the aerosol container 150 in such a way that it is positioned at the center of the container holding portion 40 in the YZ plane. The container holding portion 40 in this example has multiple protrusions 43.
[0062] The retaining part 44 holds the buffer part 20 in a predetermined position. In this example, the retaining part 44 is provided to extend inward from the inner wall of the first receiving member 41. The retaining part 44 holds the buffer part 20 at the front end of the first receiving member 41.
[0063] The ejection drive unit 80 supplies driving force to eject the contents from the aerosol container 150. In this example, the ejection drive unit 80 generates driving force from the bottom side of the aerosol container 150 toward the valve stem side. In this example, the ejection drive unit 80 is housed in a second receiving member 42 located on the bottom side of the aerosol container 150. The second receiving member 42 functions as the housing of the ejection drive unit 80. The ejection drive unit 80 has a cam 81, a cam follower 82, and a movable part 83. Since the ejection drive unit 80 is located in the container holding part 40, it is not necessary to replace the ejection drive unit 80 when replacing the aerosol container 150.
[0064] The cam 81 is driven to rotate by a drive source. In one example, an electric motor is used as the drive source. The cam 81 has a structure with varying distances from the center of rotation to the outer periphery. Furthermore, the shape of the cam 81 in this example is exaggerated in the illustration. The cam 81 contacts the cam follower 82 at its outer periphery.
[0065] A cam follower 82 is disposed between the cam 81 and the movable part 83. The cam follower 82 connects the cam 81 and the movable part 83, and transmits the rotational motion of the cam 81 as linear motion to the movable part 83. The cam follower 82 moves linearly based on the difference in distance from the rotation center of the cam 81 to its outer periphery.
[0066] The movable part 83 is disposed in contact with the bottom surface of the aerosol container 150 and controls the opening and closing of the valve of the aerosol container 150. The movable part 83 moves back and forth in the X-axis direction by means of the cam follower 82. For example, when the distance between the rotation center of the cam 81 and the contact area of the cam 81 that abuts against the cam follower 82 is short, the movable part 83 moves backward relative to the aerosol container 150 and closes the valve of the aerosol container 150. On the other hand, when the distance between the rotation center of the cam 81 and the contact area of the cam 81 that abuts against the cam follower 82 is long, the movable part 83 moves forward relative to the aerosol container 150 and opens the valve of the aerosol container 150.
[0067] Furthermore, the ejection drive unit 80 has a configuration that uses a cam mechanism to convert the rotational motion of the electric motor into linear motion, but it is not limited to a cam mechanism. For example, the mechanism of the ejection drive unit 80 can be any mechanism that converts the rotational motion of the electric motor into linear motion, such as a screw feed mechanism, rack and pinion. In addition, as the drive source, it may not have a rotary electric motor, but may have a linear electric motor for linear drive, or a cylinder and solenoid, etc.
[0068] The ejector section 50 is connected to the aerosol container 150 and ejects the contents of the aerosol container 150. The contents can be any of a liquid, gas, or solid. The contents can also be in any state such as powder, granules, or gel. The ejector section 50 is an example of a nozzle for ejecting contents. The ejector section 50 has an outlet for ejecting the contents of the aerosol container 150.
[0069] In this example, the buffer 20 buffers the excessive force applied to the pressing part 10 by moving the pressing part 10 according to the excessive force. For example, when the driving force becomes an excessive force exceeding a predetermined magnitude, the buffer 20 buffers the excessive force by moving the pressing part 10 to the negative side in the X-axis direction through the compression of the buffer elastic part 21. In this way, the ejection device 100 in this example can avoid damage to parts caused by the excessive force by using the buffer 20 to buffer the generated excessive force.
[0070] In this example, the ejection device 100 has a buffer section 20 on the valve stem side (i.e., the negative side in the X-axis direction, further from the aerosol container 150) and an ejection drive section 80 on the bottom side (i.e., the positive side in the X-axis direction, further from the aerosol container 150). However, the positions of the buffer section 20 and the ejection drive section 80 are not limited to these. Both the buffer section 20 and the ejection drive section 80 can be provided on either the valve stem side or the bottom side. Alternatively, the ejection drive section 80 can be provided on the valve stem side, and the buffer section 20 can be provided on the bottom side.
[0071] Furthermore, in this example, the aerosol container 150 is directly mounted on the container holding part 40. However, the aerosol container 150 may also be housed in a housing component before being mounted on the container holding part 40. In this case, since the housing component protects the aerosol container 150 from impact, safety during an accident is improved.
[0072] Figure 1B This is an enlarged view of the valve stem structure of the aerosol container 150. The aerosol container 150 includes an impregnation tube 152, a housing 154, a mounting cover 156, and a gasket 158. In this example, the aerosol container 150 includes a valve stem 12 and a valve stem elastic portion 14. In this example, the opening and closing of the valve of the aerosol container 150 is shown.
[0073] The valve stem 12 has a flow path for ejecting contents. By pressing the valve stem 12 with the pressing part 10, the flow path of the valve stem 12 is connected to the impregnation tube 152.
[0074] The valve stem elastic portion 14 is a spring that expands and contracts according to the movement of the valve stem 12. The valve stem elastic portion 14 is held between the valve stem 12 and the housing 154. When the valve stem 12 moves towards the positive side in the X-axis direction, the valve stem elastic portion 14 compresses. When the valve stem 12 moves towards the negative side in the X-axis direction, the valve stem elastic portion 14 extends. In this example, the elastic direction of the valve stem elastic portion 14 is the same as the elastic direction of the buffer elastic portion 21. The valve stem elastic portion 14 can begin to compress before the buffer elastic portion 21 begins to compress.
[0075] The impregnation tube 152 has a flow path extending into the interior of the aerosol container 150 and for taking in the contents of the aerosol container 150. The length of the impregnation tube 152 can be varied depending on the type of contents of the aerosol container 150. The impregnation tube 152 can extend to near the bottom of the aerosol container 150.
[0076] The housing 154 is connected to the impregnation tube 152. The housing 154 houses the valve stem 12 and the valve stem elastic part 14. The housing 154 has a flow path for allowing the contents to flow from the impregnation tube 152 to the valve stem 12.
[0077] Mounting cover 156 is provided on the upper surface of aerosol container 150. Mounting cover 156 fixes valve stem 12 and housing 154 to the main body of aerosol container 150.
[0078] Gasket 158 deforms according to the movement of valve stem 12 in the X-axis direction, opening and closing the passage for the contents. In this example, the passage is opened by moving valve stem 12 toward the bottom of aerosol container 150.
[0079] The valve stem stroke Ls is the distance from the starting position of the valve stem 12's movement to the ending position where the valve stem elastic part 14 is compressed and the movement of the valve stem 12 ends. The starting position of the valve stem 12's movement refers to the position of the valve stem 12 when no driving force is applied from the ejection drive part 80. When the valve stem 12 moves beyond the valve stem stroke Ls, there is a possibility of damage to the internal structure, such as the valve stem elastic part 14 being destroyed and the valve stem 12 becoming trapped in the housing 154.
[0080] Figure 1C This is an enlarged view of the periphery of the preloaded buffer section 20. In this example, the buffer section 20 has a buffer elastic section 21 preloaded by the holding section 44.
[0081] The buffer section 20 has a preloading mechanism that applies a preload to the buffer elastic section 21. By applying a preload to the buffer elastic section 21, the buffer section 20 can adjust the operation of the buffer elastic section 21 caused by the driving force. For example, by applying a preload, the buffer elastic section 21 is less likely to compress according to the driving force. The preload can be greater than the force used to open the valve of the aerosol container 150. Thus, it is possible to prevent the buffer section 20 from operating with a force weaker than the force used to open the valve of the aerosol container 150.
[0082] The fixing part 22 fixes the negative end of the buffer elastic part 21 in the X-axis direction. The fixing part 22 clamps the buffer elastic part 21 between itself and the pressing part 10. For example, when the valve stem 12 is moved to the negative side in the X-axis direction by a driving force, the fixing part 22 fixes the end of the buffer elastic part 21 and compresses the buffer elastic part 21.
[0083] The retaining part 44 holds the pressing part 10 in the preloaded position of the buffer elastic part 21. Preloading means pre-compressing the spring and applying force. By preloading the buffer elastic part 21, the buffer elastic part 21 does not deform until a predetermined load is applied. The retaining part 44 in this example is an example of a preload mechanism.
[0084] The preload length Lp represents the pre-compressed length of the buffer elastic part 21. When not pressed, the buffer elastic part 21 remains in a state where it is compressed from its natural length L by the preload length Lp.
[0085] For example, if a force of 2 kgf is required to press the valve stem 12 in place, a preload of 3 kgf is applied. For example, in the buffer elastic part 21, as... Figure 1C In the case of a spring structure, the preload is calculated by the spring constant of the buffer elastic part 21 multiplied by the preload length Lp.
[0086] The preload length Lp of the preload mechanism can be adjusted according to the state of the buffer elastic part 21. In one example, the preload length Lp of the preload mechanism is adjusted according to the time-related degradation of the buffer elastic part 21. The preload length Lp of the preload mechanism can increase as the degradation of the buffer elastic part 21 increases. Furthermore, in this example, the buffer elastic part 21 is preloaded, but it may also not be preloaded.
[0087] Figure 1D This diagram illustrates the operation of the ejection device 100. In this example, it shows the stages in which the aerosol container 150 gradually moves under the drive of the ejection drive unit 80.
[0088] In step S100, the buffer 20 is preloaded. With the valve of the aerosol container 150 closed, the dispensing device 100 has a gap 16 between the valve stem 12 and the pressing part 10. By providing the gap 16, even if there are manufacturing deviations in the dispensing device 100 or the aerosol container 150, unintentional pressing of the valve stem 12 can be prevented.
[0089] In step S102, the aerosol container 150 moves toward the pressing part 10, and the pressing part 10 contacts the valve stem 12. To open the valve of the aerosol container 150, the valve stem 12 moves a distance equivalent to the spacing Lg of the gap 16 from the point of contact with the pressing part 10. The spacing Lg is the width of the gap 16 in the X-axis direction.
[0090] In step S104, the aerosol container 150 moves further toward the pressing part 10, and the valve stem elastic part 14 is compressed. During the period from step S102 to step S104, the aerosol container 150 moves a distance equivalent to the valve stem stroke Ls of the valve stem 12.
[0091] In step S106, the excessive force is buffered by compressing the buffer elastic part 21. The buffer length Lb is the length by which the buffer part 20 is compressed to buffer the excessive force. That is, the buffer length Lb is the distance of overtravel caused by the excessive force. In this way, even in the case of overtravel, the buffer part 20 can avoid damage to the parts by using the buffer elastic part 21 to buffer the excessive force.
[0092] Here, the over-force is the force that exceeds the gap Lg of the clearance 16 and the valve stem stroke Ls of the valve stem elastic part 14. In this example, the buffer part 20 has a buffer elastic part 21, so it can be reused without damage even when an over-force occurs.
[0093] Furthermore, the cam stroke Lc of the ejection drive unit 80 is the distance from the most positive position in the X-axis direction of the movable unit 83 to the most negative position in the X-axis direction of the movable unit 83. That is, the cam stroke Lc is the maximum travel distance of the movable unit 83. In this example, the cam stroke Lc is expressed by the following formula.
[0094] Lc = Lg + Ls + Lb
[0095] Figure 1E Indicates and Figure 1D The operation of the ejection drive unit 80 corresponding to each step. In this example, step S100... Step S106 and Figure 1D Step S100 Step S106 corresponds to each of the following.
[0096] In step S100, the ejection drive unit 80 does not drive the aerosol container 150 and is positioned closest to the bottom side of the aerosol container 150. In step S102, the cam 81 is driven, and the cam follower 82 gradually moves the movable part 83 towards the valve stem side of the aerosol container 150. In step S104, the aerosol container 150 is further moved towards the valve stem side of the aerosol container 150. In step S106, the cam 81 reaches a position where the movable part 83 is moved closest to the valve stem side of the aerosol container 150. That is, the ejection drive unit 80 moves the aerosol container 150 to the negative side in the X-axis direction no more than the position shown in step S106.
[0097] Here, manufacturing deviations sometimes occur in the dispensing device 100 or the aerosol container 150. For example, the length of the aerosol container 150 or the length of the valve stem 12 is not fixed, and the length from the bottom of the aerosol container 150 to the front end of the valve stem 12 sometimes deviates. That is, the distance Lg of the gap 16 between the valve stem 12 and the pressing part 10 varies.
[0098] On the other hand, the cam stroke Lc of the ejection drive unit 80 is fixed regardless of any deviation in the length of the aerosol container 150. Therefore, when the aerosol container 150 is longer, the injection volume increases, while when the aerosol container 150 is shorter, ejection becomes poor. In this example, the buffer unit 20 buffers the excessive force with an appropriate buffer length Lb according to manufacturing deviations.
[0099] Therefore, even in the event of manufacturing deviations, the ejection device 100 can prevent damage to parts. Furthermore, the ejection device 100 can not only avoid the effects of manufacturing deviations, but also avoid the effects caused by deformation of the aerosol container 150 due to temperature.
[0100] Figure 2 This illustrates an example of the configuration of the ejection device 100. In this example, the ejection device 100 has a buffer section 20 in the ejection drive section 80.
[0101] A buffer section 20 is provided in the ejection drive section 80, and buffers excess force within the ejection drive section 80. In this example, the buffer section 20 is provided between the movable section 83 and the aerosol container 150. The buffer section 20 may have multiple buffer elastic sections 21. When an excess force is generated and transmitted from the movable section 83 to the aerosol container 150, the buffer section 20 compresses the buffer elastic sections 21 to buffer the excess force. Thus, the transmission of excess force to the aerosol container 150 can be suppressed.
[0102] A support portion 84 is disposed between the aerosol container 150 and the buffer portion 20. The support portion 84 supports the bottom surface of the aerosol container 150 and transmits the driving force of the ejection drive portion 80 to the aerosol container 150. However, since the buffer portion 20 buffers excess force, the support portion 84 does not transmit excess force to the aerosol container 150. In this example, the support portion 84 has a structure that internally houses the buffer portion 20, but it is not limited to this.
[0103] Figure 3 This illustrates an example of the configuration of the ejection device 100. In this example, the buffer section 20 has a buffer structure 24 in the container holding section 40.
[0104] The buffer section 20 connects the first receiving member 41 to the second receiving member 42. In this example, the buffer section 20 buffers the excessive force by changing the relative position of the first receiving member 41 and the second receiving member 42 according to the excessive force. In this example, the buffer section 20 separates the relative position of the first receiving member 41 and the second receiving member 42 by extending according to the excessive force. As a result, the pressing part 10 can be moved away from the valve stem 12 to buffer the excessive force. Thus, depending on the position where the buffer section 20 is provided, the excessive force can be buffered by the stretching of the buffer section 20.
[0105] The buffer structure 24 is integrally provided with the container holding part 40. In this example, the buffer structure 24 may be an elastomer like rubber. The buffer structure 24 may have the property of self-compressing after being stretched. The buffer structure 24 may also utilize a bellows structure that can freely expand and contract to buffer excessive force. The buffer structure 24 is provided along the outer periphery of the container holding part 40.
[0106] Figure 4A This illustrates an example of the configuration of the dispensing device 100. In this example, the dispensing device 100 has a buffer section 20 outside the container holding section 40. The buffer section 20 in this example has a buffer elastic section 21 that connects the first receiving member 41 and the second receiving member 42. The buffer elastic section 21 is a tension spring that extends beyond force. By making the buffer elastic section 21 a tension spring, the buffer section 20 can be provided without increasing the overall length of the dispensing device 100. Furthermore, in this example, the dispensing drive section 80 is provided on the bottom side of the aerosol container 150, but it could also be provided on the valve stem side of the aerosol container 150.
[0107] Figure 4B express Figure 4A The YZ cross-sectional view of the ejection device 100. In this example, the ejection device 100 has multiple buffer sections 20 above and below the container holding section 40.
[0108] The buffer section 20 is provided on the outer side of the outer periphery of the aerosol container 150 when viewed from the side along the long axis of the aerosol container 150. Therefore, since it is not necessary to provide the buffer section 20 at the front and rear of the aerosol container 150, the length of the dispensing device 100 in the X-axis direction can be shortened. The side view along the long axis of the aerosol container 150 refers to the YZ cross-sectional view taken from the upper or bottom surface of the aerosol container.
[0109] Multiple buffer sections 20 connect the first receiving member 41 and the second receiving member 42 respectively. The multiple buffer sections 20 can be symmetrically arranged with respect to the aerosol container 150. The multiple buffer sections 20 can be equally arranged on the outer periphery of the container holding section 40. Therefore, when buffering excessive force, the multiple buffer sections 20 can allow the first receiving member 41 and the second receiving member 42 to move relatively in a balanced manner. In this example, the ejection device 100 has buffer sections 20 on both the positive and negative sides in the Z-axis direction.
[0110] Figure 4C This illustrates an example of the configuration of the ejection device 100. The ejection device 100 in this example differs from others in that it includes the anti-exposure portion 46. Figure 4A The implementation methods differ. In this example, the first housing component 41 and the second housing component 42 are composed of different components and can be separated from each other.
[0111] The anti-exposure portion 46 prevents the interior of the container holding portion 40 from being exposed between the first receiving member 41 and the second receiving member 42. The anti-exposure portion 46 may be an overlapping portion where the first receiving member 41 and the second receiving member 42 overlap. Even when the buffer portion 20 is extended to cushion excessive force, the anti-exposure portion 46 prevents the interior of the container holding portion 40 from being exposed. Thus, internal contamination caused by rainwater or the like can be prevented. In addition, the anti-exposure portion 46 may also function as a guide mechanism for moving the first receiving member 41 and the second receiving member 42 in the X-axis direction.
[0112] Figure 4D This illustrates an example of the configuration of the ejection device 100. The ejection device 100 in this example includes a spring lock 25. The spring lock 25 is an example of a buffer portion 20. In this example, the first receiving member 41 and the second receiving member 42 are composed of different components and are separable from each other.
[0113] The spring lock 25 is a spring lock with an elastic part installed in the container holding part 40. The ejection device 100 can use the unlocking of the spring lock 25 to separate the first receiving part 41 and the second receiving part 42.
[0114] The pressing part 10 and the ejection drive part 80 are connected to different receiving parts. For example, the pressing part 10 is connected to the first receiving part 41, and the ejection drive part 80 is connected to the second receiving part 42. By connecting the pressing part 10 and the ejection drive part 80 to different receiving parts, the buffer part 20 can buffer the excessive force.
[0115] Figure 5A This illustrates an example of the configuration of the ejection device 100. Figure 5B Indicates and Figure 5A 100 different cross-sectional views of the ejection device. Figure 5A This represents the XY cross section of the ejection device 100. Figure 5B This indicates the XZ cross section of the ejection device 100. In this example, the ejection device 100 includes a suppression mechanism 26. The suppression mechanism 26 is an example of the buffer section 20.
[0116] A suppression mechanism 26 is provided in the ejection drive unit 80 to suppress the generation of excessive force. In this example, the suppression mechanism 26 has a structure that suppresses the transmission of force from the motor 85 to the cam 81 when excessive force is generated. For example, the suppression mechanism 26 is a torque limiter that does not transmit torque exceeding a predetermined load. The suppression mechanism 26 is not limited to any mechanism that suppresses the transmission of excessive force. By providing the suppression mechanism 26, the ejection device 100 in this example can prevent damage to parts caused by excessive force.
[0117] Figure 5C This illustrates an example of the structure of the suppression mechanism 26. In this example, the suppression mechanism 26 is a torque limiter. The suppression mechanism 26 includes suppression mechanism 26a and suppression mechanism 26b.
[0118] Suppression mechanisms 26a and 26b each have a magnetic surface on which a magnet is provided. The magnetic surfaces of suppression mechanisms 26a and 26b face each other and are fixed together by magnetic force, transmitting the driving force from the motor 85. When a torque exceeding a predetermined value is generated, the suppression mechanism 26 cannot be fixed by magnetic force and will idle. Thus, the suppression mechanism 26 can suppress the transmission of excessive force.
[0119] Figure 6A This illustrates an example of an aerosol device 100 that has an ejection drive unit 80 on the valve stem side. In this example, the ejection device 100 also has a buffer unit 20 on the valve stem side. The ejection drive unit 80 generates a driving force from the valve stem side of the aerosol container 150 toward the bottom side.
[0120] The movable part 83 contacts the buffer part 20. The movable part 83 is driven to the positive side in the X-axis direction, and the valve stem 12 is pressed by the pressing part 10. In this example, the buffer part 20 is provided between the movable part 83 and the pressing part 10, and transmits the driving force of the ejection drive part 80 to the pressing part 10 to buffer excess force. In this example, the buffer part 20 and the ejection drive part 80 are housed in the container holding part 40 on the valve stem side of the aerosol container 150, so excess force can be buffered without moving the position of the aerosol container 150 relative to the container holding part 40. Therefore, even when the container holding part 40 is mounted on a drone or the like, the center of gravity of the aerosol container 150 relative to the container holding part 40 does not change, so the drone's flight is stable.
[0121] The support portion 47 supports the bottom surface of the aerosol container 150 in a manner that prevents the aerosol container 150 from moving due to the driving force of the ejection drive portion 80. In this example, the support portion 47 is fixed to the container holding portion 40.
[0122] Figure 6B This describes a modified example of an aerosol device 100 having an aerosol drive unit 80 on the valve stem side. The aerosol device 100 in this example differs from the previous example in that it has a buffer unit 20 on the bottom side of the aerosol container 150. Figure 6A The implementation methods differ. In this example, a special explanation is given regarding the differences between [the methods described]. Figure 6A The difference in the implementation method is that, in this example, the ejection drive unit 80 does not pass through the buffer unit 20, but instead uses the pressing unit 10 to press the valve stem 12.
[0123] A buffer section 20 is provided on the bottom side of the aerosol container 150 and connected to the support section 47. The buffer section 20 buffers the excessive force applied to the aerosol container 150 by moving the aerosol container 150 according to the excessive force. In this example, when an excessive force is generated, the buffer section 20 compresses the aerosol container 150 using the force from the aerosol container 150, causing the aerosol container 150 to move to the positive side in the X-axis direction. In this way, even when the buffer section 20 is provided on the bottom side of the aerosol container 150, the dispensing device 100 can buffer the excessive force in the same way as when the aerosol container 150 is provided on the valve stem side. In addition, the buffer section 20 in this example has a compression spring as a buffer elastic part 21, but it may also include a material such as elastic rubber.
[0124] Figure 7A This illustrates an example of the configuration of a dispensing device 100 equipped with a drive mechanism housing 86. In this example, the dispensing device 100 may not include a container holding portion 40. In this example, the dispensing drive portion 80 is disposed on the valve stem side of the aerosol container 150, generating a driving force from the valve stem side of the aerosol container 150 toward the bottom side.
[0125] The drive mechanism housing 86 houses the ejection drive unit 80 and the pressing unit 10. The drive mechanism housing 86 houses the buffer unit 20, but may not house the aerosol container 150. The drive mechanism housing 86 is fixed to the aerosol container 150. In this example, the drive mechanism housing 86 is fixed to the clamped portion of the mounting cover 156 of the aerosol container 150.
[0126] Figure 7B This describes a modified example of the ejection device 100 equipped with a drive mechanism housing 86. In this example, the drive mechanism housing 86 clamps the main body of the aerosol container 150 using a clamping part 87. In this example, the drive mechanism housing 86 is fixed to the aerosol container 150 by the force of clamping the aerosol container 150 using the clamping part 87. The drive mechanism housing 86 can also be fixed to the aerosol container 150 using an adhesive or the like.
[0127] Figure 8 This illustrates an example of the configuration of a drone 200 equipped with an ejection device 100. The drone 200 is an airborne aircraft. In this example, the drone 200 includes an ejection device 100, a main body 210, and a propulsion unit 220. In this example, the ejection device 100 includes a connection part 110 for connecting to the drone 200.
[0128] The main body 210 stores various control circuits and power supplies for the drone 200. Furthermore, the main body 210 functions as a structure that connects the components of the drone 200. In this example, the main body 210 is connected to the propulsion unit 220. The main body 210 may also include a camera.
[0129] The propulsion unit 220 propels the drone 200. The propulsion unit 220 has a rotor 221 and a rotation drive unit 222. In this example, the drone 200 has four propulsion units 220. The propulsion units 220 are mounted on the main body 210 via arm sections 224. Alternatively, the drone 200 can also be a fixed-wing aircraft.
[0130] The propulsion unit 220 obtains propulsion by rotating the rotor 221. Four rotors 221 are arranged around the main body 210, but the arrangement of the rotors 221 is not limited to this example. The rotors 221 are provided at the front end of the arm 224 via the rotation drive unit 222.
[0131] The rotary drive unit 222 has a power source such as an electric motor to drive the rotary blade 221. The rotary drive unit 222 may have a braking mechanism for the rotary blade 221. The rotary blade 221 and the rotary drive unit 222 may also omit the arm 224 and be directly mounted on the main body 210.
[0132] The arms 224 extend radially from the main body 210. The drone 200 in this example has four arms 224 corresponding to the four propulsion units 220. The arms 224 can be either fixed or movable. Cameras and other components can be fixed to the arms 224.
[0133] The connecting part 110 connects the container holding part 40 to the externally mounted fixing part. In this example, the connecting part 110 connects the container holding part 40 to the main body part 210, which serves as the fixing part. The connecting part 110 can be fixed or movable. The connecting part 110 can be a universal joint for controlling the position of the ejection device 100 in the three-axis direction. The connecting part 110 can control the direction of the ejection device 100 according to the ejection direction of the ejection device 100.
[0134] Furthermore, by standardizing the connecting part 110, any container holding part 40 that mates with the aerosol container 150 can be replaced. This allows for the adaptation to aerosol containers 150 of different sizes or types.
[0135] The legs 215 are connected to the main body 210 and maintain the posture of the drone 200 during landing. The legs 215 maintain the posture of the drone 200 when the propulsion unit 220 is stopped. In this example, the drone 200 has two legs 215. Cameras or ejector devices 100 can also be mounted on the legs 215.
[0136] The ejection device 100 in this example utilizes the buffer section 20 to cushion excessive force, ensuring safe ejection even when the aerosol container 150 expands during the flight of the drone 200. Furthermore, the ejection device 100 in this example allows for easy replacement of the aerosol container 150 even when it becomes empty.
[0137] Figure 9 This illustrates a modified example of the ejection device 100. In this example, the ejection device 100 possesses the same... Figure 1A The container holding part 40 has a different structure in different implementation methods. Figure 9 The text indicates the period before and after the contents are ejected from the aerosol container 150. The ejection device 100 in this example is an example of a stationary ejection device, but it can also be portable.
[0138] The container holding part 40 holds the aerosol container 150. In this example, the container holding part 40 holds the pressing part 10 and the bottom surface of the aerosol container 150. The dispensing drive part 80 is provided on the bottom side of the aerosol container 150 and generates a driving force from the bottom side of the aerosol container 150 toward the valve stem side. The support part 84 moves the aerosol container 150 upward by rising from the container holding part 40. As a result, the dispensing device 100 presses the valve stem 12 using the pressing part 10 and dispenses the contents of the aerosol container 150. In this example, the buffer part 20 is provided on the bottom side of the aerosol container 150, but it can also be provided on the valve stem side of the aerosol container 150.
[0139] The present invention has been described above using embodiments, but the technical scope of the present invention is not limited to the scope described in the embodiments. It will be apparent to those skilled in the art that various modifications or alterations can be made to the embodiments. As can be clearly seen from the claims, such modifications or alterations may also be included within the technical scope of the present invention.
[0140] It should be noted that the execution order of actions, sequences, steps, and stages in the apparatus, systems, programs, and methods shown in the claims, specification, and drawings can be implemented in any order unless specifically stated as "earlier than" or "before" or similar. Furthermore, as long as the output of the preprocessing is not used in the post-processing, it is acceptable. Even if the flow of actions in the claims, specification, and drawings is described using terms such as "firstly," "secondly," etc., for convenience, it does not imply that the actions must be performed in that order.
[0141] Explanation of reference numerals in the attached figures
[0142] 10 Pressing section
[0143] 12 Valve stem
[0144] 14. Elastic part of valve stem
[0145] 16 gaps
[0146] 20 Buffer Section
[0147] 21. Buffer elastic part
[0148] 22 Fixing part
[0149] 24. Buffer Structure
[0150] 25 Spring Locks
[0151] 26 Suppression mechanism
[0152] 40 Container holding section
[0153] 41 First containment component
[0154] 42 Second containment component
[0155] 43 convex part
[0156] 44. Holding section
[0157] 46. Exposed parts
[0158] 47 Support section
[0159] 50 ejection section
[0160] 80 Ejection Drive Unit
[0161] 81 Cam
[0162] 82 Cam follower
[0163] 83. Movable parts
[0164] 84 Support section
[0165] 85 Electric Motor
[0166] 86 Drive mechanism housing section
[0167] 87 Clamping section
[0168] 100 Ejection Device
[0169] 110 Connecting Section
[0170] 150 aerosol container
[0171] 152 Impregnated Tube
[0172] 154 Casing
[0173] 156 Install protective cover
[0174] 158 gasket
[0175] 200 drones
[0176] 210 Main Body
[0177] 215 Legs
[0178] 220 Propulsion Department
[0179] 221 Rotary Wing
[0180] 222 Rotary drive unit
[0181] 224 Arm
Claims
1. A spraying device, capable of loading and unloading aerosol containers, and comprising: A pressing part for pressing a valve stem, the valve stem being used to open and close a valve on the aerosol container; and A buffer section is used to buffer excessive force, where the force exerted by the pressing section on the valve stem exceeds the force required to open the valve. A container holding part for holding the aerosol container; the container holding part includes: A first receiving component is used to receive one end of the aerosol container; and The second receiving component is connected to the first receiving component and is used to receive the other end of the aerosol container; The buffer connects the first receiving member and the second receiving member, and changes the relative position of the first receiving member and the second receiving member according to the excessive force, thereby buffering the excessive force.
2. The ejection device according to claim 1, further comprising an anti-exposure portion that prevents the interior of the container holding portion from being exposed between the first receiving member and the second receiving member.
3. The ejection device according to claim 1, wherein, The buffer section has a spring lock with an elastic part installed in the container holding section.
4. The ejection device according to claim 1, wherein, The buffer section has a buffer structure integrally formed with the container holding section.
5. The ejection device according to claim 1, comprising a plurality of buffer portions connecting the first receiving member and the second receiving member, the plurality of buffer portions being symmetrically arranged about the aerosol container.
6. The ejection device according to claim 1, wherein, The pressing part is connected to the first receiving member, and the spraying driving part of the aerosol container is connected to the second receiving member.
7. The ejection device according to claim 1, further comprising a connecting portion for connecting the container holding portion to a fixing portion disposed externally.
8. The ejection device according to claim 7, wherein, The buffer section has a buffer elastic section for buffering the excessive force.
9. The ejection device according to claim 8, wherein it has a preloading mechanism for applying a preload to the buffer elastic portion.
10. The ejection device according to claim 7, comprising an ejection drive unit that supplies a driving force for ejecting contents from the aerosol container, the driving force being generated by the driving force.
11. The ejection device according to claim 7, wherein, The buffer section, when viewed from the side along the long axis of the aerosol container, is located on the outer side of the outer periphery of the aerosol container.
12. The ejection device according to claim 7, wherein, When the valve is closed, there is a gap between the valve stem and the pressing part.
13. The ejection device according to claim 12, wherein it has a valve stem elastic portion connected to the valve stem, and the over-force is an over-travel force exceeding the width of the gap and the valve stem stroke of the valve stem elastic portion.
14. An unmanned aerial vehicle (UAV) comprising a spraying device according to any one of claims 1 to 13.