A holder for an aerosol can

Abstract

This utility model relates to a fixing device for a spray can, including a height-adjustable bracket, a spray can, and a nozzle switch operating device. The height-adjustable bracket has an adjustable-angle fixing part at its top, and the fixing part has a fixing member for fixing the spray can. After fixing, the nozzle switch of the spray can faces downwards. The spray can includes a can body and a press-operated nozzle switch mounted on the can body. The nozzle switch includes a movable pressing member and a discharge pipe, with the movable pressing member located between the can body and the discharge pipe. The nozzle switch operating device includes a flexible traction mechanism, with a first end fixed to the nozzle switch and a second end for user operation. When the user applies a downward pulling force to the operating end of the flexible traction mechanism, the movable pressing member is moved upwards by the flexible traction mechanism, connecting the discharge pipe to the inside of the can body, thus opening the nozzle switch. This utility model offers high construction efficiency, low construction risk, and good flexibility.

Description

Technical Field

[0001] This utility model relates to the field of construction tools technology, and more specifically, to a fixing device for a spray can. Background Technology

[0002] In construction and interior decoration, when using foaming agent spray cans to work at heights, current technology generally relies on manual labor using ladders. This existing method has the following drawbacks:

[0003] 1. Low construction efficiency: During construction, due to the dispersed work sites, construction workers need to spend time and effort moving ladders to reach the next work site after completing the filling of each site. Frequent ladder movement and climbing make the construction operation steps cumbersome, seriously disrupting the continuity of construction and thus significantly reducing construction efficiency.

[0004] 2. High Construction Risks: Climbing and moving at heights pose significant safety hazards. The stability of ladders is affected by various factors such as ground flatness and weather. If construction workers lose their balance while working at heights on ladders, accidents such as falls from heights are highly likely. Falls from heights often cause serious bodily injuries or even endanger lives, thus posing a serious threat to the personal safety of construction workers.

[0005] 3. Poor flexibility: Traditional working methods are limited by the height and stability of the ladder. In some complex environments or construction at higher positions, it is difficult to adjust the ladder to a suitable position and angle for filling operations, thus making it difficult to meet the actual needs of construction. Utility Model Content

[0006] The purpose of this invention is to provide a fixing device for a spray can to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0008] This utility model provides a device for fixing a spray can, including a height-adjustable bracket, a spray can, and a nozzle switch operating device.

[0009] The height adjustment bracket has an adjustable angle fixing part at the top, and the fixing part is connected to a fixing member. The fixing member is used to fix the spray can upside down. After fixing, the nozzle switch part of the spray can faces downward.

[0010] The spray can includes a can body and a push-to-open nozzle switch mounted on the can body. The nozzle switch includes a movable push-button and a discharge pipe. The movable push-button is located between the can body and the discharge pipe.

[0011] The nozzle switch operating device includes a flexible traction mechanism. The first end of the flexible traction mechanism is fixed to the nozzle switch part of the spray can, and the second end is the user operating end. The movable pressing part is configured to be driven upward by the flexible traction mechanism when the user applies a downward pulling force to the operating end of the flexible traction mechanism, so as to allow the discharge pipe to communicate with the inside of the can body, thereby opening the nozzle switch part.

[0012] In some embodiments of this application, the height adjustment bracket includes a connecting tube, a connecting rod, and a locking part. The connecting tube is slidably sleeved on the connecting rod, the top end of the connecting rod is provided with a fixing part, and the locking part is used to lock the connecting tube and the connecting rod to limit their relative sliding.

[0013] In some embodiments of this application, the fixing part includes a connecting seat, a first connecting block and a second connecting block. The connecting seat is fixed to the top of the height adjustment bracket; the first connecting block is hinged to the connecting seat; the second connecting block is fixed to the upper surface of the first connecting block and is fixedly connected to the fixing member.

[0014] In some embodiments of this application, the fixing member is a pair of symmetrically arranged clamping members, and the clamping members are respectively located on both radial sides of the spray can and configured to adjustably clamp the spray can.

[0015] In some embodiments of this application, a friction enhancement member is provided on the inner side of the clamping member.

[0016] In some embodiments of this application, the flexible traction mechanism includes a pulley and a rope. The pulley is fixed to the fixing member, the middle part of the rope passes through the pulley, and the first end of the rope is fixed to the nozzle switch part of the spray can, and the second end is the user operation end.

[0017] The movable pressing component is provided with a spring element;

[0018] The movable pressing member is configured such that when the user applies a downward pulling force to the second end of the pull rope, it moves upward under the pull rope, compressing the elastic member and opening the nozzle switch. When the user releases the second end of the pull rope, it moves downward to reset under the reset action of the elastic member, separating the discharge pipe from the inside of the tank body and closing the nozzle switch.

[0019] In some embodiments of this application, the first end of the pull rope is provided with a connector, which is detachably connected to the nozzle switch of the spray can, and the second end of the pull rope is provided with an operating component for manual operation.

[0020] In some embodiments of this application, the spray can contains a foaming agent.

[0021] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0022] 1. High construction efficiency. The spray can fixing device provided by this utility model, by setting up a height-adjustable bracket and a flexible traction mechanism including a pull rope and pulleys, allows construction workers to operate and control the spraying of materials from the ground without using ladders to climb. This eliminates the steps of moving and climbing ladders, ensuring the continuity of construction and improving construction efficiency.

[0023] 2. Low construction risk. The spray can fixing device provided by this utility model allows construction personnel to control the spraying of materials from the spray can by operating from a safe position on the ground, eliminating the need for working at heights and avoiding the risk of accidents such as falls from heights.

[0024] 3. High flexibility. The spray can fixing device provided by this utility model can adjust both the height and tilt angle of the spray can, allowing for appropriate positioning and angle for filling operations even at higher positions and in complex environments. This meets diverse construction needs and offers high flexibility. Attached Figure Description

[0025] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0026] Figure 1 This is a three-dimensional diagram of a device for fixing a spray can.

[0027] Figure 2 This is a perspective view of a spray can fixing device from another angle.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Height adjustment bracket; 11. Fixing part; 111. Connecting seat; 112. First connecting block; 113. Second connecting block; 114. Threaded rod; 12. Fixing part; 121. Threaded fastener; 122. Friction enhancement part; 13. Connecting pipe; 14. Locking part; 15. Connecting rod;

[0030] 2. Spray can; 21. Nozzle switch; 211. Movable pressing part; 2111. Movable valve stem; 2112. Valve seat; 212. Discharge pipe; 22. Can body;

[0031] 3. Nozzle switch operating device; 31. Flexible traction mechanism; 311. Pulley; 312. Pull rope; 3121. Connector; 3122. Operating component. Detailed Implementation

[0032] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0033] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0034] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0035] Please see Figure 1 , Figure 2 An embodiment of this utility model provides a spray can fixing device, which mainly includes a height adjusting bracket 1, a spray can 2, and a nozzle switch operating device 3.

[0036] The height adjustment bracket 1 has an adjustable angle fixing part 11 at the top. The fixing part 11 is connected to a fixing member 12. The fixing member 12 is used to fix the spray can 2 upside down. After fixing, the nozzle switch part 21 of the spray can 2 faces downward.

[0037] The spray can 2 includes a can body 22 and a push-to-open nozzle switch 21 installed on the can body 22. The nozzle switch 21 includes a movable push-button 211 and a discharge pipe 212. The movable push-button 211 is located between the can body 22 and the discharge pipe 212.

[0038] The nozzle switch operating device 3 includes a flexible traction mechanism 31. The first end of the flexible traction mechanism 31 is fixed to the nozzle switch part 21 of the spray tank 2, and the second end is the user operating end. The movable pressing member 211 is configured to be driven upward by the flexible traction mechanism 31 when the user applies a downward pulling force to the operating end of the flexible traction mechanism 31, so as to allow the discharge pipe 212 to communicate with the inside of the tank body 22, thereby opening the nozzle switch part 21.

[0039] This utility model provides a spray can fixing device. By setting up a height adjustment bracket 1 and a flexible traction mechanism 31, construction personnel can operate and control the spraying of materials from the spray can 2 from the ground without using ladders to climb. This eliminates the steps of moving and climbing ladders, ensuring the continuity of construction and improving construction efficiency. Because the spray can fixing device provided by this utility model allows construction personnel to operate and control the spraying of materials from the spray can 2 from a safe position on the ground, there is no need to work at height, thus avoiding the risk of accidents such as falls from heights. In addition, the spray can fixing device of this utility model can adjust both the height and the tilt angle of the spray can 2 through the height adjustment bracket 1. It can adjust to a suitable height and angle for filling operations even at higher positions and in complex environments, meeting diverse construction needs and providing high flexibility.

[0040] In a preferred embodiment, the height-adjustable bracket 1 includes a connecting tube 13, a connecting rod 15, and a locking part 14. The connecting tube 13 is slidably sleeved on the connecting rod 15. The top end of the connecting rod 15 is provided with a fixing part 11. The locking part 14 is used to lock the connecting tube 13 and the connecting rod 15 to limit their relative sliding. By slidably sleeved on the connecting tube 13 on the connecting rod 15, the length of the connecting rod 15 extending out of the connecting tube 13 can be adjusted, that is, the length of the height-adjustable bracket 1 can be adjusted to adapt to different working height requirements. By providing the connecting tube 13, a gripping part is provided for construction workers, making it convenient for them to hold the connecting tube 13 stably for operation.

[0041] Specifically, the locking part 14 is a connecting sleeve with screws. After the connecting rod 15 is adjusted to extend the length of the connecting tube 13 according to construction needs, the construction personnel tighten the screws on the connecting sleeve, so that the screws are tightly against the connecting rod 15, locking the position of the connecting rod 15 and ensuring that the connecting rod 15 has good stability and will not be displaced by external forces during operation. Locking the connecting rod 15 with a connecting sleeve with screws is not only simple to operate, but also allows the adjustment and fixation of the connecting rod 15 to be completed in a short time, effectively improving construction efficiency.

[0042] In a preferred embodiment, the fixing part 11 includes a connecting seat 111, a first connecting block 112 and a second connecting block 113. The connecting seat 111 is fixed to the top of the height adjustment bracket 1. The first connecting block 112 is hinged to the connecting seat 111. The second connecting block 113 is fixed to the upper surface of the first connecting block 112 and is fixedly connected to the fixing member 12.

[0043] The hinged connection between the first connecting block 112 and the connecting seat 111 allows the first connecting block 112 to rotate flexibly relative to the connecting seat 111. The second connecting block 113 is fixed to the upper surface of the first connecting block 112. When the first connecting block 112 rotates relative to the connecting seat 111, the second connecting block 113 rotates along with it. Furthermore, since the second connecting block 113 is fixedly connected to the fixing member 12, which is used to fix the spray can 2, the spray can 2 can also rotate relative to the connecting seat 111, i.e., relative to the height adjustment bracket 1, when the first connecting block 112 rotates relative to the connecting seat 111. This multi-component transmission structure makes the angle adjustment of the spray can 2 more flexible and controllable.

[0044] In a preferred embodiment, a threaded rod 114 extends through the first connecting block 112, and the threaded rod 114 is hinged to the connecting seat 111, with nuts connected to both ends of the threaded rod 114. The threaded rod 114 enables the hinge between the first connecting block 112 and the connecting seat 111, thereby allowing the first connecting block 112 to rotate relative to the connecting seat 111 around the threaded rod 114. Since the nuts are connected to both ends of the threaded rod 114, after the nuts are tightened, they can closely contact the outer surface of the connecting seat 111, causing the connecting seat 111 to deform and clamp the first connecting block 112, thus locking the position of the first connecting block 112.

[0045] Therefore, when the first connecting block 112 rotates around the threaded rod 114 to a specific angle, the rotation angle of the first connecting block 112 can be locked by tightening the nut, thereby locking the tilt angle of the spray can 2; thus, it is ensured that the first connecting block 112 will not rotate on its own due to force during the operation of the construction personnel, thereby ensuring that the tilt angle of the spray can 2 is stable during the operation.

[0046] In a preferred embodiment, the fixing member 12 is a pair of symmetrically arranged clamping members, located on opposite radial sides of the spray can 2, and configured to adjustably clamp the spray can 2. The symmetrical arrangement of the clamping members generates a uniformly distributed clamping force when clamping the spray can 2, providing a basis for stable clamping of the spray can 2 and preventing deformation or damage to the spray can 2 due to excessive localized force during clamping. Simultaneously, the adjustable clamping allows the clamping members to adapt to different models of spray can 2. The adjustable clamping of the spray can 2 is achieved by means including, but not limited to, threaded fasteners, spring clips, etc.

[0047] Preferably, the clamping components achieve adjustable clamping of the spray can 2 via threaded fasteners 121. The threaded fasteners 121 can be rotated to finely adjust the clamping distance between the clamping components. This adjustment method can accommodate spray cans 2 of different diameters and sizes, thereby achieving stable fixation of different models of spray cans 2. For construction personnel, the operation is simple and the clamping force is controllable. The clamping components include, but are not limited to, clamps, and grippers.

[0048] Preferably, the clamping component is a clamp. The clamp is usually made of metal, which has high strength and hardness and can withstand large external forces without damage. When facing the reaction force generated by the spray can 2, it can also ensure that the spray can 2 always maintains a stable clamping state. Moreover, the clamp has a simple structure with no complicated parts. During maintenance, only the metal parts need to be checked for wear or deformation, which greatly saves maintenance time and cost.

[0049] In a preferred embodiment, a friction enhancer 122 is provided on the inner side of the clamping member. When the clamping member clamps the spray can 2, the friction enhancer 122 is in close contact with the outer surface of the spray can 2. By providing the friction enhancer 122, the frictional resistance between the clamping member and the spray can 2 can be increased, effectively preventing the spray can 2 from sliding due to reaction forces or other external forces during spraying, further enhancing the clamping stability of the spray can 2. The friction enhancer 122 includes, but is not limited to, rubber pads, silicone pads, sandpaper sleeves, etc.

[0050] Preferably, the friction enhancement component 122 is a rubber pad. Rubber material has a high coefficient of friction, and when the rubber pad contacts the outer surface of the spray can 2, it generates a large frictional force, effectively preventing the spray can 2 from sliding and displacing during clamping. Rubber material also has good flexibility and plasticity, and can be easily processed into rubber pads of various shapes and sizes to fit spray cans 2 of different sizes. Furthermore, rubber material has good wear resistance, can withstand a large amount of friction without easily wearing down, and can ensure a long-term stable friction enhancement effect.

[0051] In a preferred embodiment, the flexible traction mechanism 31 includes a pulley 311 and a pull rope 312. The pulley 311 is fixed to the fixing member 12, and the middle part of the pull rope 312 passes through the pulley 311. The first end of the pull rope 312 is fixed to the nozzle switch part 21 of the spray can 2, and the second end is the user operation end. The movable pressing member 211 is provided with an elastic member (not shown in the figure). The movable pressing member 211 is configured such that when the user applies a downward pulling force to the second end of the pull rope 312, it moves upward under the action of the pull rope 312, the elastic member is compressed, and the nozzle switch part 21 is opened. When the user releases the second end of the pull rope 312, it moves downward and resets under the reset action of the elastic member, the discharge pipe 212 is separated from the inside of the can body 22, and the nozzle switch part 21 is closed.

[0052] Specifically, the movable pressing member 211 includes a movable valve stem 2111 and a valve seat 2112. A spring is provided inside the valve seat 2112 as the elastic member. One end of the spring is fixed to the inner wall of the valve seat 2112, and the other end is connected to the movable valve stem 2111. The movable valve stem 2111 and the valve seat 2112 form an openable and closable sealing fit through axial relative movement. When the user applies a downward pulling force to the second end of the pull rope 312, the first end of the pull rope 312 drives the movable valve stem 2111 to move upward, compressing the spring inside the valve seat 2112, causing the sealing mating surface between the movable valve stem 2111 and the valve seat 2112 to separate, connecting the discharge pipe 212 with the inside of the tank body 22, and the material in the spray can 2 is sprayed out from the discharge pipe 212; when the user releases the second end of the pull rope 312, the restoring force of the spring pushes the movable valve stem 2111 downward to reset, causing the movable valve stem 2111 and the valve seat 2112 to re-form a sealing mating, isolating the discharge pipe 212 from the inside of the tank body 22, and closing the nozzle switch part 21. It should be noted that the valve structure of the movable pressing part 211 is a conventional design that can be known by those skilled in the art, and will not be further explained here.

[0053] The entire flexible traction mechanism 31 consists of only pulleys 311 and ropes 312. Since pulleys 311 and ropes 312 are common products with simple structures, they can be manufactured without complex molds or processes. In addition, the flexible traction mechanism 31 has very few parts, and when a fault occurs and replacement is needed, it is very convenient to inspect and replace the parts, which greatly shortens the maintenance time and cost.

[0054] Preferably, the length of the pull rope 312 is adjustable. Because the length of the pull rope 312 can be flexibly adjusted according to the needs of the construction personnel, the flexible traction mechanism 31 can adapt to the needs of different operating spaces; in confined spaces, construction personnel can choose a shorter pull rope 312; while when working at heights, a longer pull rope 312 can be used.

[0055] In a preferred embodiment, the first end of the pull rope 312 is provided with a connector 3121, which is detachably connected to the nozzle switch part 21 of the spray can 2. The second end of the pull rope 312 is provided with an operating part 3122 for manual operation. By providing the connector 3121, which is detachably connected to the nozzle switch part 21, it can be quickly separated from the nozzle switch part 21 for maintenance when cleaning or replacement is required. By providing the operating part 3122, the operator is provided with a specific and clear location to apply pulling force.

[0056] Preferably, the connector 3121 is sized to fit the nozzle switch part 21 and is sleeved onto the nozzle switch part 21. Sleeving the connector 3121 onto the nozzle switch part 21 allows for quick assembly without tools, improving installation efficiency.

[0057] In a preferred embodiment, the connector 3121 and the operating component 3122 are annular structures. By providing the annular structure of the connector 3121, the contact surface between the connector 3121 and the nozzle switch part 21 forms a continuous circumference. When subjected to external force, the contact surface between the connector 3121 and the nozzle switch part 21 can be evenly stressed, ensuring a stable connection between the connector 3121 and the nozzle switch part 21. The annular structure of the operating component 3122 allows the operator's fingers to be inserted into the operating component 3122 from any angle to apply pulling force, increasing operational adaptability. The connector 3121 and the operating component 3122 include, but are not limited to, pull rings.

[0058] In a preferred embodiment, the spray can 2 contains a foaming agent. In construction, decoration, and other fields, foaming agents are commonly used for filling gaps and sealing holes. The fixing device for the spray can of this invention, when used with a spray can 2 containing foaming agent, better meets the needs of foaming agent spraying during construction operations.

[0059] The working process of the spray can fixing device of this utility model is as follows: When the construction personnel use the spray can fixing device of this utility model, firstly, the spray can 2 is fixed to the second connecting block 113 in an inverted manner by the fixing member 12, and the spray can 2 is clamped by the threaded fastener 121. A friction enhancement member 122 is installed between the fixing member 12 and the spray can 2 to increase the frictional resistance between the fixing member 12 and the spray can 2. Then, one end of the pull rope 312 is passed around the pulley 311, and the connecting member 3121 is sleeved on the nozzle switch part 21. According to the construction needs, the construction personnel can rotate the spray can 2, which drives the second connecting block 113 to rotate, and then drives the first connecting block 112 to rotate around the threaded rod 114 relative to the connecting seat 111, thereby adjusting the spray can 2 to a suitable tilt angle. After determining the tilt angle of the spray can 2, the nuts at both ends of the threaded rod 114 are tightened. The nuts compress the connecting seat 111 to deform it and clamp the first connecting block 112, that is, lock the first connecting block 112, and thus lock the tilt angle of the spray can 2. Finally, the construction workers adjusted the extension length of the connecting rod 15 relative to the connecting pipe 13 according to the construction needs. After the height adjustment was completed, they tightened the screws on the connecting sleeve, and the screws pressed tightly against the connecting rod 15 to lock the connecting rod 15.

[0060] After adjusting the angle and height, the worker can hold the connecting pipe 13, align the discharge pipe 212 of the spray can 2 with the construction position, and then pull down the operating component 3122. The operating component 3122 drives the pull rope 312 downward. The pulley 311 assists in the transmission of the pull rope 312 and changes the direction of force transmission on the pull rope 312, converting the downward force applied by the worker to the pull rope 312 into a vertical upward lifting force on the nozzle switch part 21, so that the connecting component 312... 21 drives the movable pressing part 211 to move upward, the elastic part is compressed, the discharge pipe 212 is connected to the inside of the tank body 22, the nozzle switch part 21 is opened, and the foaming agent in the spray can 2 can be sprayed out from the discharge pipe 212 of the spray can 2 through the nozzle switch part 21; after the construction personnel release the operating part 3122, under the reset action of the elastic part, the movable pressing part 211 moves downward to reset, the discharge pipe 212 is isolated from the inside of the tank body 22, the nozzle switch part 21 is closed, and the spraying stops.

[0061] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A device for fixing a spray can, comprising a height-adjustable bracket, a spray can, and a nozzle switch operating device, characterized in that, The height adjustment bracket has an adjustable angle fixing part at the top, and the fixing part has a fixing member. The fixing member is used to fix the spray can upside down, and after fixing, the nozzle switch part of the spray can faces downward. The spray can includes a can body and a push-to-open nozzle switch mounted on the can body. The nozzle switch includes a movable push-button and a discharge pipe. The movable push-button is located between the can body and the discharge pipe. The nozzle switch operating device includes a flexible traction mechanism. The first end of the flexible traction mechanism is fixed to the nozzle switch part of the spray can, and the second end is the user operating end. The movable pressing part is configured to be driven upward by the flexible traction mechanism when the user applies a downward pulling force to the operating end of the flexible traction mechanism, so as to allow the discharge pipe to communicate with the inside of the can body, thereby opening the nozzle switch part.

2. The aerosol can fixture of claim 1, wherein, The height adjustment bracket includes a connecting tube, a connecting rod, and a locking part. The connecting tube is slidably sleeved on the outside of the connecting rod. The top end of the connecting rod is provided with a fixing part. The locking part is used to lock the connecting tube and the connecting rod to limit their relative sliding.

3. The aerosol can holder of claim 1, wherein The fixing part includes a connecting seat, a first connecting block and a second connecting block. The connecting seat is fixed to the top of the height adjustment bracket. The first connecting block is hinged to the connecting seat. The second connecting block is fixed to the upper surface of the first connecting block and is fixedly connected to the fixing member.

4. The fixing device for the spray can according to claim 1, characterized in that, The fixing member is a pair of symmetrically arranged clamping members, and the clamping members are respectively located on both radial sides of the spray can and configured to adjustably clamp the spray can.

5. The fixing device for the spray can according to claim 4, characterized in that, The clamping member has a friction-enhancing component on its inner side.

6. The fixing device for the spray can according to claim 1, characterized in that, The flexible traction mechanism includes a pulley and a rope. The pulley is fixed to the fixing member, the middle part of the rope passes through the pulley, and the first end of the rope is fixed to the nozzle switch part of the spray can, and the second end is the user operation end. The movable pressing component is provided with a spring element; The movable pressing member is configured such that when the user applies a downward pulling force to the second end of the pull rope, it moves upward under the pull rope, compressing the elastic member and opening the nozzle switch. When the user releases the second end of the pull rope, it moves downward to reset under the reset action of the elastic member, separating the discharge pipe from the inside of the tank body and closing the nozzle switch.

7. The fixing device for the spray can according to claim 6, characterized in that, The first end of the pull rope is provided with a connector, which is detachably connected to the nozzle switch of the spray can, and the second end of the pull rope is provided with an operating component for manual operation.

8. The fixing device for the spray can according to any one of claims 1-7, characterized in that, The spray can contains a foaming agent.

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