Adjustable backpack type power sprayer

Abstract

The utility model relates to an adjustable backpack type power sprayer which comprises a sprayer body and a strap assembly arranged on the sprayer body, and the strap assembly comprises a strap retractor arranged on the sprayer body, straps arranged on the strap retractor, a plug arranged on the straps and a socket arranged on the sprayer body. The plug is located at the top of the sprayer body, the socket is located at the bottom of the sprayer body, the plug is inserted into the socket, an unlocking button is arranged on the socket, and when the unlocking button is pressed, the strap is wound by the retractor; the sprayer main body comprises a base, a spraying assembly arranged on the base and a material storage tank arranged on the base, and the spraying assembly is used for atomizing and spraying liquid in the material storage tank; the belt retractor is located at the top of the discharging tank, and the sockets are located at the bottom of the base and located on the two sides of the base. The sprayer has the effect of automatically storing the straps when the sprayer is not used, the state of the straps can be conveniently adjusted, and inconvenience caused by the fact that the straps are scattered on the ground is prevented.

Description

Technical Field

[0001] The present invention relates to the field of sprayers, and in particular to an adjustable backpack power sprayer. Background Art

[0002] A sprayer, short for spray equipment, is a device that uses suction to turn liquids into mist and spray them evenly onto objects. It consists of a compressed air device, a thin tube, and a nozzle.

[0003] Common sprayers are carried on the back. Users carry the sprayer on their backs and hold the nozzle to spray liquid on objects. The shoulder strap of common backpack sprayers is usually hung on the outside of the sprayer. When the sprayer is not in use, the sprayer is placed on the ground for storage. The shoulder strap of the sprayer is scattered on the ground, which is not only easy to get dirty, but may also trip the user because it is too long. This needs to be improved. Utility Model Content

[0004] In order to facilitate the adjustment of the state of the shoulder strap, the present application provides an adjustable backpack power sprayer.

[0005] The present application provides an adjustable backpack power sprayer, which adopts the following technical solution:

[0006] An adjustable backpack power sprayer includes a sprayer body and a shoulder strap assembly provided on the sprayer body, the shoulder strap assembly including a belt retractor provided on the sprayer body, a shoulder strap provided on the belt retractor, a plug provided on the shoulder strap, and a socket provided on the sprayer body, the plug being located at the top of the sprayer body, the socket being located at the bottom of the sprayer body, the plug being inserted into the socket, and an unlocking button being provided on the socket, and when the unlocking button is pressed, the belt retractor retracts the shoulder strap.

[0007] By adopting the above technical solution, a shoulder strap assembly is provided for the user to carry on his back. The shoulder strap is installed on the belt retractor and can be automatically retracted to be in the shortest state. After the plug on the shoulder strap is inserted into the socket, the user can carry the sprayer body to perform spraying operations. When the sprayer body is not in use, the unlocking button is pressed, the plug is released, and the shoulder strap is retracted and retracted by the belt retractor until it is in the shortest length state, thereby putting the shoulder strap in the retracted state and preventing the shoulder strap from falling on the ground and causing inconvenience. The sprayer can adjust the state of the shoulder strap and retract the shoulder strap to prevent the shoulder strap from falling on the ground and causing inconvenience.

[0008] Optionally, the sprayer body includes a base, a spray assembly arranged on the base and a storage tank arranged on the base, the spray assembly is used to atomize and spray the liquid in the storage tank; the belt reel is located at the top of the discharge tank, the socket is located at the bottom of the base, and the socket is located on both sides of the base.

[0009] By adopting the above technical solution, the sockets are located on both sides of the base. When the plug is inserted into the socket, the shoulder strap is in an eight-shaped shape, and the user has good stability when carrying it.

[0010] Optionally, a slot is provided on the socket, and when the plug is inserted into the slot, the plug is fixed; a mounting plate is provided on the base, and the mounting plate is used to fix the socket.

[0011] By adopting the above technical solution, a mounting plate is provided to fix the socket, and after the plug is inserted into the socket, the user can carry the sprayer body on his back with a shoulder strap.

[0012] Optionally, an elastic protrusion is provided on the side wall of the socket, a mounting groove is provided on the mounting plate, the elastic protrusion abuts against the side wall of the mounting groove, and a limiting protrusion is provided at the end of the elastic protrusion away from the socket, the limiting protrusion abuts against the side wall of the mounting plate to limit the socket from moving in a direction away from the mounting plate.

[0013] By adopting the above technical solution, an elastic protrusion is provided to be snap-fitted and fixed in the mounting groove, and further fixed by the limiting protrusion, so that the socket is fixed on the mounting plate.

[0014] Optionally, a connecting protrusion is provided on a side wall of the socket, and a connecting groove for accommodating the connecting protrusion is provided on a side of the mounting plate facing the socket.

[0015] By adopting the above technical solution, the connecting protrusion and the connecting groove are matched to each other, so that the socket can be positioned when fixed to the mounting plate, thereby facilitating the elastic protrusion to be inserted into the mounting groove; and the connecting protrusion and the connecting groove increase the contact area, which can disperse part of the force.

[0016] Optionally, an adjusting groove is provided on the storage tank, and a pull ring is provided in the adjusting groove.

[0017] By adopting the above technical solution, the pull ring is provided to facilitate lifting the sprayer body.

[0018] Optionally, an abutment protrusion is provided on the base, and the abutment protrusion is used to abut against the back of the user.

[0019] By adopting the above technical solution, an abutting protrusion is set to abut the user's back, which on the one hand creates a gap between the user's back and the base for ventilation, and on the other hand facilitates massaging the user's back, thereby improving the user's experience.

[0020] Optionally, grooves are provided on both sides of the storage tank.

[0021] By adopting the above technical solution, the groove is provided to facilitate the user to move the entire sprayer body.

[0022] Optionally, the belt retractor is a seat belt retractor, and when the plug is inserted into the socket, the shoulder strap pulled out of the belt retractor is in a state of maximum length.

[0023] By adopting the above technical solution, when the plug is inserted into the socket, the shoulder strap is in the longest extended length state, so that the user can be in a stable state when carrying the sprayer body, and the shoulder strap can be prevented from being further pulled out when the user bends over or makes large movements, thereby preventing the user from carrying the sprayer unstable.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. A shoulder strap assembly is provided for the user to carry the device. The shoulder strap is mounted on a belt retractor and can be automatically retracted to its shortest position. After the plug on the shoulder strap is inserted into the socket, the user can carry the sprayer body to perform spraying operations. When the sprayer body is not in use, the unlock button is pressed to release the plug, and the shoulder strap is retracted and retracted by the belt retractor until it is at its shortest length, thereby keeping the shoulder strap in a retracted position and preventing the shoulder strap from falling to the ground and causing inconvenience.

[0026] 2. The sockets are located on both sides of the base. When the plug is inserted into the socket, the shoulder strap forms an eight-shaped shape, which provides good stability when the user carries it.

[0027] 3. The connection protrusion and the connection groove are matched to position the socket when it is fixed to the mounting plate, so that the elastic protrusion is easy to insert into the mounting groove; and the connection protrusion and the connection groove increase the contact area, which can disperse some of the force;

[0028] 4. When the plug is inserted into the socket, the shoulder strap is at its longest length, so that the user is in a stable state when carrying the sprayer body, preventing the shoulder strap from being pulled out further when the user bends over or makes large movements, making the carrying unstable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the overall structure of the adjustable backpack power sprayer according to an embodiment of the present application.

[0030] Figure 2 yes Figure 1 A is an enlarged schematic diagram.

[0031] Figure 3 2 is a schematic structural diagram of a mounting plate and a socket according to an embodiment.

[0032] Explanation of the accompanying drawings: 1. Sprayer body; 11. Base; 12. Spray assembly; 121. Pump body; 122. Engine; 123. Pressure reducing valve; 124. Carburetor; 13. Storage tank; 2. Strap assembly; 21. Belt retractor; 22. Strap; 23. Plug; 24. Socket; 3. Unlock button; 4. Slot; 5. Mounting plate; 6. Elastic protrusion; 7. Mounting groove; 8. Limiting protrusion; 9. Connecting protrusion; 10. Connecting groove; 14. Adjusting groove; 15. Pull ring; 16. Abutting protrusion; 17. Groove. DETAILED DESCRIPTION

[0033] The following is a further detailed description of this application in conjunction with Appendix 1-3.

[0034] The present application discloses an adjustable backpack power sprayer. Figure 1 and Figure 2 The adjustable knapsack power sprayer includes a sprayer body 1 and a shoulder strap assembly 2 mounted on the sprayer body 1. The shoulder strap assembly 2 includes a belt retractor 21 fixed to the sprayer body 1, a shoulder strap 22 mounted on the belt retractor 21, a plug 23 mounted on the shoulder strap 22, and a socket 24 fixed to the sprayer body 1. The plug 23 is located at the top of the sprayer body 1, and the socket 24 is located at the bottom of the sprayer body 1. The socket 24 is for plugging into the plug 23. The socket 24 is equipped with an unlock button 3. When the unlock button 3 is pressed, the belt retractor 21 retracts the shoulder strap 22. The socket 24 has a slot 4. When the plug 23 is inserted into the slot 4, the plug 23 is secured. The belt retractor 21 is a safety belt retractor, a common automatic belt retraction device. When the plug 23 is inserted into the socket 24, the shoulder strap 22 pulled out of the belt retractor 21 is at its longest length.

[0035] Reference Figure 1 The sprayer body 1 includes a base 11, a spray assembly 12 mounted on the base 11, and a storage tank 13 fixed to the base 11. The spray assembly 12 is used to atomize and spray the liquid in the storage tank 13. The belt retractor 21 is located at the top of the discharge tank, and the socket 24 is located at the bottom of the base 11, and the socket 24 is located on both sides of the base 11.

[0036] Reference Figure 1 and Figure 3A mounting plate 5 is fixed to the base 11, and is used to secure the socket 24. An elastic protrusion 6 is fixed to the side wall of the socket 24. The elastic protrusion 6 is made of elastic and high-strength plastic. A mounting groove 7 is defined on the mounting plate 5, and the elastic protrusion 6 abuts the side wall of the mounting groove 7. A limiting protrusion 8 is integrally fixed to the end of the elastic protrusion 6 away from the socket 24. The limiting protrusion 8 abuts the side wall of the mounting plate 5 to limit the movement of the socket 24 away from the mounting plate 5. A connecting protrusion 9 is fixed to the side wall of the socket 24, and a connecting groove 10 for accommodating the connecting protrusion 9 is defined on the side of the mounting plate 5 facing the socket 24.

[0037] Reference Figure 1 The storage tank 13 is provided with an adjustment groove 14, and a pull ring 15 is installed in the adjustment groove 14. A contact protrusion 16 is fixed on the base 11, and the contact protrusion 16 is used to contact the back of the user. Grooves 17 are provided on both sides of the storage tank 13.

[0038] Reference Figure 1 The spray assembly 12 includes a pump body 121, an engine 122, a pressure reducing valve 123 and a carburetor 124, and the pressure reducing valve 123, the carburetor 124 and the engine 122 are connected in sequence through pipes (not shown in the figure). The engine 122 drives the pump body 121 to suck the liquid in the storage tank 13, and finally sprays it out from an external nozzle (not shown in the figure).

[0039] The implementation principle of an adjustable backpack power sprayer in an embodiment of the present application is as follows: a shoulder strap assembly 2 is provided for the user to carry on the back, and the shoulder strap 22 is installed on the belt retractor 21 and can be automatically retracted to be in the shortest state. After the plug 23 on the shoulder strap 22 is inserted into the socket 24, the user can carry the sprayer body 1 on the back to perform spraying operations. When the sprayer body 1 is not in use, the unlocking button 3 is pressed, the plug 23 is released, and the shoulder strap 22 is retracted and retracted under the action of the belt retractor 21 until it is in the shortest length state, thereby putting the shoulder strap 22 in a retracted state to prevent the shoulder strap 22 from falling on the ground and causing inconvenience; the sprayer can adjust the state of the shoulder strap 22 and retract the shoulder strap 22 to prevent the shoulder strap 22 from falling on the ground and causing inconvenience.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An adjustable knapsack power sprayer, characterized by: The invention comprises a sprayer body (1) and a shoulder strap (22) assembly (2) arranged on the sprayer body (1), wherein the shoulder strap (22) assembly (2) comprises a belt retractor (21) arranged on the sprayer body (1), a shoulder strap (22) arranged on the belt retractor (21), a plug (23) arranged on the shoulder strap (22), and a socket (24) arranged on the sprayer body (1), wherein the plug (23) is located at the top of the sprayer body (1), the socket (24) is located at the bottom of the sprayer body (1), the plug (23) is inserted into the socket (24), and an unlocking button (3) is provided on the socket (24). When the unlocking button (3) is pressed, the belt retractor (21) retracts the shoulder strap (22).

2. The adjustable knapsack power sprayer according to claim 1, characterized in that: The sprayer body (1) comprises a base (11), a spray assembly (12) arranged on the base (11) and a storage tank (13) arranged on the base (11), wherein the spray assembly (12) is used for atomizing and spraying the liquid in the storage tank (13); the belt retractor (21) is located at the top of the discharge tank, the socket (24) is located at the bottom of the base (11), and the socket (24) is located on both sides of the base (11).

3. The adjustable knapsack power sprayer according to claim 2, characterized in that: The socket (24) is provided with a slot (4), and when the plug (23) is inserted into the slot (4), the plug (23) is fixed; the base (11) is provided with a mounting plate (5), and the mounting plate (5) is used to fix the socket (24).

4. The adjustable knapsack power sprayer according to claim 3, characterized in that: An elastic protrusion (6) is provided on the side wall of the socket (24), a mounting groove (7) is provided on the mounting plate (5), the elastic protrusion (6) abuts against the side wall of the mounting groove (7), and a limiting protrusion (8) is provided at one end of the elastic protrusion (6) away from the socket (24), the limiting protrusion (8) abuts against the side wall of the mounting plate (5) to limit the socket (24) from moving in a direction away from the mounting plate (5).

5. The adjustable knapsack power sprayer according to claim 4, characterized in that: A connecting protrusion (9) is provided on the side wall of the socket (24), and a connecting groove (10) for accommodating the connecting protrusion (9) is provided on a side of the mounting plate (5) facing the socket (24).

6. The adjustable knapsack power sprayer according to claim 2, characterized in that: The storage tank (13) is provided with an adjusting groove (14), and a pull ring (15) is provided in the adjusting groove (14).

7. The adjustable knapsack power sprayer according to claim 2, characterized in that: The base (11) is provided with an abutting protrusion (16), and the abutting protrusion (16) is used to abut against the back of the user.

8. The adjustable knapsack power sprayer according to claim 2, characterized in that: Grooves (17) are provided on both sides of the storage tank (13).

9. The adjustable knapsack power sprayer according to claim 1, characterized in that: The belt retractor (21) is a safety belt retractor. When the plug (23) is inserted into the socket (24), the shoulder strap (22) pulled out of the belt retractor (21) is in a state of maximum length.

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