A remote spray device for a self-priming canister

Abstract

The utility model provides a kind of remote spraying device for self-spraying tank, including cylinder, adapter disc, gas pressure mechanism and gas source;The cylinder is detachably installed at the bottom of adapter disc;The plunger hole is axially arranged in the adapter disc;The gas pressure mechanism includes cylinder body, plunger and elastic member, the cylinder body is fixedly installed at the top of adapter disc, the upper end of the cylinder body is equipped with vent hole, the plunger is arranged through cylinder body, the lower end of the plunger is slidably connected with plunger hole, the outer periphery of the plunger is equipped with piston slidably connected with cylinder body, the piston separates the inner cavity of cylinder body into airtight chamber and damping chamber, the airtight chamber is communicated with vent hole, the plunger is axially equipped with air passage connecting cylinder body and outside, the lower end of the air passage is equipped with spray head hole, which can be in close contact with the nozzle of self-spraying tank, and the elastic member is arranged in the damping chamber;The gas source is connected with the vent hole of cylinder body by pipeline.The utility model can remotely trigger the spraying operation of self-spraying tank.

Description

Technical Field

[0001] This utility model belongs to the field of automatic spraying technology, specifically relating to a remote spraying device for self-spraying cans. Background Technology

[0002] Spray cans are widely used in various fields due to their pre-pressurized internal structure, instant use, good sealing, and portability. A typical spray can (aerosol can) includes a can body, a top cap, a valve mounted on the top cap, a nozzle inside the valve, and a propellant filling the can. Its basic working principle relies on the pre-pressurized propellant inside the can. When the user manually presses the valve, the pressure of the propellant forces the contents into the valve stem and out through the nozzle in a mist form. However, when spraying toxic or harmful substances (such as strong insecticides, disinfectants, and paints) or operating in extreme environments (such as high temperatures, flammable materials, or explosive materials), manually pressing the valve with a spray can poses a threat to the user's personal safety and health. Furthermore, manual spraying makes it difficult to ensure accurate dosage, potentially leading to overdosing or underdosing. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a remote spraying device for self-spraying cans, which can remotely trigger the spraying operation of the self-spraying can without endangering the personal safety and health of the user.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A remote spraying device for a self-spraying can includes a cylinder, a transfer plate, a pneumatic mechanism, and an air source;

[0006] The cylinder has a cavity that can accommodate the spray can, and the open end of the cylinder can be detachably installed at the bottom of the adapter plate.

[0007] The adapter plate is provided with a plunger hole along the axial direction.

[0008] The pneumatic mechanism includes a cylinder, a plunger, and an elastic element. The cylinder is fixedly mounted on the top of the adapter plate. The upper end of the cylinder has a vent hole for connecting the inner cavity of the cylinder to the outside. The plunger passes through the cylinder and its lower end is slidably connected to the plunger hole. A piston is provided on the outer periphery of the plunger and is slidably connected to the cylinder. The piston isolates the inner cavity of the cylinder into an airtight chamber and a damping chamber. The airtight chamber is connected to the vent hole. An air passage is provided axially inside the plunger to connect the cylinder to the outside. The lower end of the air passage has a nozzle hole that can be in close contact with the nozzle of the self-spraying can. The elastic element is disposed in the damping chamber.

[0009] The air source is connected to the vent hole of the cylinder through a pipe to provide compressed air into the airtight chamber so that the pressure in the airtight chamber is greater than the pressure in the damping chamber, thereby driving the piston and plunger to move downward to press the valve of the spray can, so that the contents of the spray can are sprayed out through the nozzle and air passage.

[0010] Optionally, the top of the cylinder is provided with multiple L-shaped slots, and the bottom outer periphery of the adapter plate is provided with multiple bolts that can be hung on the L-shaped slots.

[0011] Optionally, the plunger hole includes an upper hole, a middle hole, and a lower hole that are larger at both ends and smaller in the middle. The cylinder body is sealed and installed at the upper hole of the adapter plate. The lower end of the plunger is slidably connected to the middle hole. The lower hole has a shape that is adapted to the top cover of the spray can.

[0012] Optionally, the device also includes a protective cover that is sealed to the top outer periphery of the adapter plate.

[0013] Optionally, the top of the protective cover has an opening, and an annular cover is sealed at the opening. The annular cover and the protective cover are sealed together by a sealing gasket, and the sealing gasket has a connection hole for sealing connection with external objects.

[0014] Optionally, the outer periphery of the adapter plate includes an upper plate, a middle plate, and a lower plate, which are smaller at the top and bottom and larger in the middle. The inner diameter of the protective cover is equal to the outer diameter of the upper plate, the inner diameter of the cylinder is equal to the outer diameter of the lower plate, and the outer diameters of the protective cover and the cylinder are both equal to the outer diameter of the middle plate.

[0015] Optionally, the device also includes a column with a length greater than that of the cylinder, a base provided at the bottom of the column, and the adapter plate being detachably installed on the top of the column.

[0016] Optionally, the adapter plate has a connecting rod along its outer periphery in the horizontal direction, the connecting rod has a pin hole, and the top of the column has a pin that matches the pin hole.

[0017] Optionally, the device further includes a controller and a solenoid valve switch electrically connected to the controller, the solenoid valve switch being installed at the gas source outlet.

[0018] The beneficial effects of this utility model are as follows: This utility model sets up a cylinder to place and fix the self-spraying can, and sets up an adapter plate to connect the cylinder and the pneumatic mechanism. The pneumatic mechanism includes a plunger connected to the nozzle of the self-spraying can and a cylinder body slidably connected to the piston of the plunger. The piston isolates the inner cavity of the cylinder body into an airtight chamber and a damping chamber. By starting an air source a certain distance away from the self-spraying can, compressed air is introduced into the airtight chamber through the air vent of the cylinder body, so that the pressure in the airtight chamber is greater than the pressure in the damping chamber, thereby driving the piston and the plunger to move downward to press the valve of the self-spraying can (the elastic element in the damping chamber is compressed at the same time). At this time, the nozzle hole of the plunger moves downward to allow the self-spraying can nozzle to be inserted, forming a sealed connection. The nozzle is connected to the outside through the air passage, so that the contents of the self-spraying can can be sprayed out through the self-spraying can nozzle and the plunger air passage. When the air source stops supplying air, the compressed elastic element in the damping chamber generates a reverse thrust, driving the piston and the plunger to move upward to return to the original position, thereby closing the valve of the self-spraying can, so that the self-spraying can be remotely controlled to stop spraying. This invention allows for remote triggering of the spray can's spraying operation via an air source, preventing users from coming into contact with the spray and ensuring their personal safety and health. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the remote spraying device for self-spraying cans provided by this utility model;

[0021] Figure 2 This is a full sectional structural diagram of the remote spraying device for self-spraying cans provided by this utility model;

[0022] Figure 3 This is a half-sectional structural diagram of the remote spraying device for self-spraying cans provided by this utility model;

[0023] Figure 4 This is an exploded schematic diagram of the remote spraying device for self-spraying cans provided by this utility model.

[0024] In the diagram: 1-protective cover, 2-sealing gasket, 3-base, 4-connecting hole, 5-cylinder, 5.1-L-shaped groove, 6-piston, 7-ring cover, 8-column, 9-adapter plate, 9.1-plunger hole, 10-elastic element, 11-bolt, 12-first sealing ring, 13-second sealing ring, 14-cylinder, 14.1-vent hole, 16-plunger, 16.1-air passage, 16.2-nozzle hole, 17-spray can, 17.1-nozzle, 17.2-top cover, 18-connecting rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" or "several" means two or more.

[0028] like Figures 1-4 As shown, this utility model provides a remote spraying device for a self-spraying can 17, including a cylinder 5, a transfer plate 9, a pneumatic mechanism and an air source;

[0029] The cylinder body is a cavity structure with one end open. The cylinder body 5 has a cavity that can accommodate the spray can 17. The open end of the cylinder body 5 can be detachably installed at the bottom of the adapter plate 9. The size of the cylinder body can be made according to the size of commonly used spray cans.

[0030] The adapter plate 9 has a plunger hole 9.1 along the axial direction inside;

[0031] The pneumatic mechanism includes a cylinder 14, a plunger 16, and an elastic element 10. The cylinder 14 is fixedly installed on the top of the adapter plate 9. The upper end of the cylinder 14 is provided with a vent hole 14.1 for connecting the inner cavity of the cylinder 14 with the outside. The plunger 16 is disposed through the cylinder 14. The lower end of the plunger 16 is slidably connected to the plunger hole 9.1. A piston 6 is provided on the outer periphery of the plunger 16 and is slidably connected to the cylinder 14. The piston 6 isolates the inner cavity of the cylinder 14 into an airtight chamber and a damping chamber. The airtight chamber is connected to the vent hole 14.1. An air passage 16.1 is provided axially inside the plunger 16 to connect the cylinder 5 with the outside. The lower end of the air passage 16.1 is provided with a nozzle hole 16.2 that can be in close contact with the nozzle 17.1 of the self-spraying can 17. The elastic element 10 is disposed in the damping chamber. The elastic element can be a spring.

[0032] An air source (not shown in the figure) is connected to the vent 14.1 of the cylinder 14 through a pipe (the length of which can be selected according to the actual distance required) to provide compressed air to the airtight chamber so that the pressure in the airtight chamber is greater than the pressure in the damping chamber, thereby driving the piston 6 and the plunger 16 to move downward to press the valve of the spray can 17, so that the contents of the spray can 17 are sprayed outward from the nozzle 17.1 through the air passage 16.1.

[0033] In this embodiment, the piston and plunger are integrally formed. The piston is located on the outer periphery of the plunger and is a certain distance from both ends of the plunger. The piston and cylinder are in close contact. To ensure the sealing effect between the cylinder and the plunger, a first sealing ring 12 can be provided between the upper part of the plunger and the cylinder head of the cylinder, and a second sealing ring 13 can be provided between the piston and the inner wall of the cylinder. For example, a groove for placing the first sealing ring can be opened on the inner wall of the cylinder head, and a groove for placing the second sealing ring can be opened in the middle of the outer periphery of the piston. When the piston is driven downward by the pressure of the airtight chamber, the piston drives the plunger to move downward to open the valve of the spray can. At the same time, the nozzle of the spray can is inserted into the nozzle hole of the plunger to form a sealed connection, so that the nozzle communicates with the outside through the air passage and sprays the contents of the spray can outward. When the air source stops working, the compressed elastic element returns to its original shape and pushes the piston back to reset, so that the plunger releases the valve of the spray can, thereby closing the spray can.

[0034] In one embodiment, such as Figures 1-4 As shown, the top of the cylinder 5 is provided with multiple L-shaped slots 5.1, and the bottom outer periphery of the adapter plate 9 is provided with multiple bolts 11 that can be hung on the L-shaped slots 5.1. The L-shaped slot is a semi-closed groove with a notch on the top side. During installation, the bolts can be screwed into the adapter plate first, and then the bolts can be inserted into the groove from the notch of the L-shaped slot. The cylinder is rotated to move the bolts to the closed part of the groove, and finally the bolts are tightened to achieve a fixed connection between the cylinder and the adapter plate.

[0035] In one embodiment, such as Figures 1-4As shown, the plunger hole 9.1 includes an upper hole, a middle hole, and a lower hole, which are larger at both ends and smaller in the middle. The cylinder body 14 is sealed and installed at the upper hole of the adapter plate 9. The lower end of the plunger 16 is slidably connected to the middle hole. The lower hole has a shape that matches the top cover 17.2 of the spray can 17. In this way, the space of the upper hole of the adapter plate can be used to install the cylinder body, saving space. It can also ensure that the space between the plunger and the top cover of the spray can is a sealed space, ensuring the spraying effect.

[0036] In one embodiment, such as Figures 1-4 As shown, the device also includes a protective cover 1, which is sealed to the top outer periphery of the adapter plate 9. The protective cover can provide dust protection for the pneumatic mechanism.

[0037] Considering that industrial spray cans need to spray welding torches and other equipment, in one embodiment, such as Figures 1-4 As shown, the top of the protective cover 1 has an opening, and an annular cover 7 is sealed at the opening. The annular cover and the protective cover are sealed together by a sealing gasket 2. The sealing gasket 2 has a connection hole 4 for sealing connection with external equipment. Other equipment such as welding guns can be inserted into the protective cover through the connection hole and sealed to the protective cover by the sealing gasket to prevent spray leakage. The size of the connection hole can also be designed according to the size of the external equipment.

[0038] In one embodiment, such as Figures 1-4 As shown, the outer periphery of the adapter plate 9 includes an upper plate, a middle plate, and a lower plate, which are smaller at the top and bottom and larger in the middle. The inner diameter of the protective cover 1 is equal to the outer diameter of the upper plate, the inner diameter of the cylinder 5 is equal to the outer diameter of the lower plate, and the outer diameters of the protective cover 1 and the cylinder 5 are equal to the outer diameter of the middle plate. This ensures that the cylinder body, adapter plate, and cylinder body have the same outer diameter after assembly, forming a smooth cylindrical structure.

[0039] In one embodiment, such as Figures 1-4 As shown, the device also includes a column 8 with a length greater than that of the cylinder 5. A base 3 is provided at the bottom of the column 8. The adapter plate 9 can be detachably installed on the top of the column 8. The self-spraying can be stably placed on the foundation through the base, or installed in other places through the base, so that the self-spraying can can spray in any direction.

[0040] In one embodiment, such as Figures 1-4 As shown, the adapter plate 9 has a connecting rod 18 on its outer periphery in the horizontal direction. The connecting rod 18 has a pin hole, and the top of the column 8 has a pin that matches the pin hole, which can realize the quick installation of the two.

[0041] Considering situations where spraying can be triggered automatically based on timed, periodic, quantitative, or environmental conditions (such as temperature, humidity, light, or smoke sensors), for example, timed spraying of mosquito repellent at night, automatic spraying of air freshener based on air quality, or remote activation of disinfectant spray, therefore, in one embodiment, such as Figures 1-4 As shown, the device also includes a controller and a solenoid valve switch (not shown) electrically connected to the controller. The solenoid valve switch is installed at the air source outlet. By controlling the opening and closing time and duration of the solenoid valve switch through the controller, the compressed air supplied to the airtight chamber can be controlled in a timely and quantitative manner, thereby realizing remote control of the spraying time and spray volume of the spray can. For large-scale, multi-point spraying needs (such as large warehouses and greenhouses), multiple units can be installed to ensure consistent spraying and full coverage.

[0042] This invention can be adapted to various specifications of standard spray cans without any modification to the can itself. It has a high degree of automation and can be triggered by timer, remote control or sensor signals. At the same time, its structure should be simple and compact, stable and reliable, safe to use and low in cost, so as to facilitate large-scale promotion and application.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A remote spraying device for a self-propelled spray can, characterized in that, Includes cylinder, adapter plate, pneumatic mechanism and air source; The cylinder has a cavity that can accommodate the spray can, and the open end of the cylinder can be detachably installed at the bottom of the adapter plate. The adapter plate is provided with a plunger hole along the axial direction. The pneumatic mechanism includes a cylinder, a plunger, and an elastic element. The cylinder is fixedly mounted on the top of the adapter plate. The upper end of the cylinder has a vent hole for connecting the inner cavity of the cylinder to the outside. The plunger passes through the cylinder and its lower end is slidably connected to the plunger hole. A piston is provided on the outer periphery of the plunger and is slidably connected to the cylinder. The piston isolates the inner cavity of the cylinder into an airtight chamber and a damping chamber. The airtight chamber is connected to the vent hole. An air passage is provided axially inside the plunger to connect the cylinder to the outside. The lower end of the air passage has a nozzle hole that can be in close contact with the nozzle of the self-spraying can. The elastic element is disposed in the damping chamber. The air source is connected to the vent hole of the cylinder through a pipe to provide compressed air into the airtight chamber so that the pressure in the airtight chamber is greater than the pressure in the damping chamber, thereby driving the piston and plunger to move downward to press the valve of the spray can, so that the contents of the spray can are sprayed out through the nozzle and air passage.

2. The remote spraying device for self-spraying cans according to claim 1, characterized in that, The top of the cylinder is provided with multiple L-shaped slots, and the bottom outer periphery of the adapter plate is provided with multiple bolts that can be hung on the L-shaped slots.

3. The remote spraying device for a self-spraying can according to claim 1, characterized in that, The plunger orifice includes an upper hole, a middle hole, and a lower hole, all of which are larger at the top and bottom and smaller in the middle. The cylinder body is sealed and installed at the upper hole of the adapter plate. The lower end of the plunger is slidably connected to the middle hole. The lower hole has a shape that is adapted to the top cover of the spray can.

4. The remote spraying device for a self-spraying can according to claim 1, characterized in that, The device also includes a protective cover that is sealed to the top outer periphery of the adapter plate.

5. The remote spraying device for a self-spraying can according to claim 4, characterized in that, The protective cover has an opening at the top, and an annular cover is sealed at the opening. The annular cover and the protective cover are sealed together by a sealing gasket. The sealing gasket has a connection hole for sealing connection with external objects.

6. The remote spraying device for a self-spraying can according to claim 4, characterized in that, The outer periphery of the adapter plate includes an upper plate, a middle plate, and a lower plate, which are smaller at the top and bottom and larger in the middle. The inner diameter of the protective cover is equal to the outer diameter of the upper plate, the inner diameter of the cylinder is equal to the outer diameter of the lower plate, and the outer diameters of the protective cover and the cylinder are both equal to the outer diameter of the middle plate.

7. The remote spraying device for a self-spraying can according to claim 1, characterized in that, The device also includes a column longer than the cylinder, with a base at the bottom of the column, and the adapter plate is detachably installed on the top of the column.

8. The remote spraying device for a self-spraying can according to claim 7, characterized in that, The adapter plate has a connecting rod along its outer periphery in the horizontal direction, and the connecting rod has a pin hole. The top of the column has a pin that matches the pin hole.

9. The remote spraying device for a self-spraying can according to claim 1, characterized in that, The device also includes a controller and a solenoid valve switch electrically connected to the controller, the solenoid valve switch being installed at the gas source outlet.

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