Strap type spraying machine

Abstract

The utility model discloses a strap type coating machine, which comprises a miniaturized base, a liquid storage box arranged at the top of the base and a miniaturized plunger pump arranged in the base, the plunger pump comprises a motor, a plunger component driven by the motor and a battery pack for supplying power to the motor, and the strap type coating machine also comprises a shoulder strap, two hanging columns are arranged on the top of the base, and the two ends of the strap are connected with the hanging columns. According to the spraying machine, the miniaturized base and the plunger pump are adopted, the overall size and weight are reduced, the oblique carrying type strap structure is adopted, a user can obliquely span the spraying machine on the front face or the side face of the body, the spraying machine can be operated and adjusted in the use process, and use and observation are convenient.

Description

Technical Field

[0001] The utility model relates to a spraying device, in particular to a shoulder-belt type spraying machine. Background Art

[0002] The sprayer in the prior art, such as the utility model patent No. ZL202122704608.0 in China, published on April 5, 2022, discloses a backpack airless sprayer, including a base, a liquid storage container and a plunger pump assembly. The base is arranged below the liquid storage container and is provided with a shoulder strap. The plunger pump assembly is arranged on the base. The plunger pump assembly includes a pump body, a motor, an eccentric wheel, a connecting rod assembly, a plunger rod, a liquid inlet check valve, a liquid outlet check valve and an outlet pressure protection mechanism. The pump body is provided with a plunger cavity, a liquid inlet channel and a liquid outlet channel, and the liquid inlet channel and the liquid outlet channel are respectively connected to the plunger cavity. The output shaft gear of the motor meshes with the teeth of the eccentric wheel, the eccentric wheel is connected to one end of the plunger rod through the connecting rod assembly, and the other end of the plunger rod extends into the plunger cavity; the motor is arranged directly above the connecting rod assembly, and the output shaft gear of the motor is located between the eccentric wheel and the other end of the connecting rod assembly; the outlet pressure protection mechanism is arranged above the liquid outlet channel and is connected to the liquid outlet channel. In the above scheme, the sprayer is carried on the back of the user as a whole, and the sprayer cannot be adjusted or observed during use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a shoulder-type sprayer which is easy to operate and observe during use.

[0004] According to the utility model, a shoulder-type sprayer is provided, which includes a miniaturized base, a liquid storage box installed on the top of the base and a miniaturized plunger pump installed in the base, wherein the plunger pump includes a motor, a plunger assembly driven by the motor and a battery pack for powering the motor, and also includes a cross-body shoulder strap, wherein two suspension columns are arranged on the top of the base, and the two ends of the shoulder strap are connected to the suspension columns.

[0005] A belt-type spraying machine provided by the utility model also has the following auxiliary technical features:

[0006] It further includes that the two suspension columns are located at two end sides of the liquid storage box.

[0007] It further includes that a battery compartment is provided at the rear end of the base, and the battery pack is inserted into the battery compartment.

[0008] It further includes that a discharge joint is arranged at the front end of the base.

[0009] It further includes that an air inlet is arranged in the middle of the side of the base, and the motor fan in the plunger pump is close to the air inlet.

[0010] It further includes that a flow adjustment knob is arranged on the side of the base.

[0011] It further includes that a buckle is provided on the battery compartment, a locking protrusion is provided on the top of the battery pack, and the buckle is locked on the locking protrusion.

[0012] A shoulder-type sprayer provided by the utility model has the following advantages compared with the prior art: the utility model adopts a miniaturized base and a plunger pump, which reduces the overall volume and weight, and adopts a diagonal shoulder strap structure, so that the user can cross the sprayer diagonally in front of or on the side of the body, and can also operate and adjust the sprayer during use, which is convenient for use and observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model.

[0014] Figure 2 It is a top view of the utility model.

[0015] Figure 3 It is a left view of the utility model.

[0016] Figure 4 This is a front view of the utility model with part of the base removed.

[0017] Figure 5 It is a three-dimensional diagram of the utility model with part of the base removed. DETAILED DESCRIPTION

[0018] In order to clearly illustrate the scheme in the utility model, preferred embodiments are given below and described in detail with reference to the accompanying drawings. The following description is essentially only exemplary and is not intended to limit the application or use of the present disclosure. It should be understood that in all the drawings, corresponding reference numerals represent the same or corresponding parts and features.

[0019] like Figures 1 to 5As shown, the utility model provides a shoulder-type sprayer, including a miniaturized base 1, a liquid storage box 2 installed on the top of the base 1 and a miniaturized plunger pump 3 installed in the base 1, the plunger pump 3 includes a motor 31, a plunger assembly 32 driven by the motor 31 and a battery pack 33 for powering the motor 31, and also includes a cross-body shoulder strap, the top of the base 1 is provided with two suspension columns 11, and the two ends of the shoulder strap are connected to the suspension columns 11. The miniaturized base 1 and the miniaturized plunger pump 3 in the utility model refer to reducing the volume and weight of the base 1 and the plunger pump 3 as much as possible, and at the same time meet the requirements of the spraying work. The so-called miniaturization is to meet the portable carrying use. Compared with the sprayer in the prior art, it has a smaller volume and lighter weight, and the user can directly carry it on his back. The base 1 in this embodiment is a rectangular structure as a whole, which is convenient for the user to cross it diagonally in front of or on the side of the body. The shoulder strap in the utility model can adopt a mature commercially available product, which is a wide cloth belt or a woven belt as a whole, which is convenient for the user to hang it on the shoulder. The suspension column 11 is located at the top of the base 1, which is convenient for the strap connection and easy to use. In addition, the structure and working principle of the plunger pump 3 in the utility model can also adopt mature existing technologies, but the volume and weight are made smaller to meet the needs of miniaturization.

[0020] See also Figures 1 to 5 In the above embodiment of the utility model, the two suspension columns 11 are further included at the two end sides of the liquid storage box 2. The top of the base 1 is formed with two recesses, and the suspension columns 11 are arranged at the recesses. The shoulder strap of the utility model is located at the top of the two ends of the base 1, and the center of gravity is more stable.

[0021] See also Figures 1 to 5 , the above-mentioned embodiment given by the utility model further includes that a battery compartment 12 is provided at the rear end of the base 1, and the battery pack 33 is inserted in the battery compartment 12. In order to reduce the volume of the base 1, the utility model has a part of the structure of the battery pack 33 exposed outside the battery compartment 12. A contact slot is provided on the top of the battery pack 33, and a contact plug is provided in the battery compartment 12, and the plug is inserted into the slot. Inserting the battery pack 33 at the rear end of the base 1 can make more reasonable use of the space of the base 1 and minimize the volume of the base 1. At the same time, the provision of the battery compartment 12 can also make the installation of the battery pack 33 more secure and not easy to fall off.

[0022] See also Figures 1 to 5In the above embodiment of the utility model, the battery compartment 12 is further provided with a buckle 13, and a locking protrusion 331 is provided on the top of the battery pack 33, and the buckle 13 is locked on the locking protrusion 331. The front side of the locking protrusion 331 is an inclined structure, and the rear side is a vertical structure. The buckle 13 can slide along the inclined structure. When reaching the rear side, the buckle 13 is locked on the vertical structure on the rear side, thereby locking the battery pack 33 and preventing the battery pack 33 from falling off.

[0023] See also Figures 1 to 5 In the above embodiment of the utility model, the front end of the base 1 is further provided with a discharge connector 14. The discharge connector 14 is used to connect an external spray gun. The discharge connector 14 is arranged at the front end to facilitate connection with the spray gun, which is more convenient to use.

[0024] See also Figures 1 to 5 , the above embodiment given in the utility model further includes that an air inlet 15 is provided in the middle of the side of the base 1, and the motor fan 34 in the plunger pump 3 is close to the air inlet 15. The motor 31 in the utility model is arranged horizontally and is located above the plunger pump 3. The air inlet 15 is located in the middle of the side of the base 1 to facilitate air intake. The air inlet 15 is provided on one side of the base 1 in the utility model, and an air outlet 18 is provided on the other side. A ventilation channel is formed between the air outlet and the air inlet to facilitate heat dissipation of the plunger pump 3.

[0025] See also Figures 1 to 5 In the above embodiment of the utility model, a flow regulating knob 16 is further provided on the side of the base 1. The flow regulating knob 16 is used to adjust the discharge amount of the discharge connector 14. The flow regulating knob 16 is provided on the side of the base 1 for convenient adjustment and operation.

[0026] In summary, the above contents are only embodiments of the present invention, which are only used to illustrate the principle of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A backpack sprayer, comprising a miniaturized base, a liquid storage box mounted on the top of the base, and a miniaturized plunger pump mounted in the base, wherein the plunger pump comprises a motor, a plunger assembly driven by the motor, and a battery pack for powering the motor, characterized in that: It also includes a crossbody shoulder strap. Two suspension columns are arranged on the top of the base, and the two ends of the shoulder strap are connected to the suspension columns.

2. A backpack sprayer as claimed in claim 1, characterized in that: The two suspension columns are located at two end sides of the liquid storage box.

3. A backpack sprayer according to claim 1, characterized in that: A battery compartment is arranged at the rear end of the base, and the battery pack is inserted into the battery compartment.

4. A backpack sprayer according to claim 1, characterized in that: A discharge joint is arranged at the front end of the base.

5. A backpack sprayer according to claim 1, characterized in that: An air inlet is arranged in the middle of the side surface of the base, and the motor fan in the plunger pump is close to the air inlet.

6. A backpack sprayer according to claim 1, characterized in that: A flow regulating knob is arranged on the side of the base.

7. A backpack sprayer as claimed in claim 3, characterized in that: The battery compartment is provided with a buckle, the top of the battery pack is provided with a clamping protrusion, and the buckle is clamped on the clamping protrusion.

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