Spray gun

Abstract

The utility model discloses a spray gun, which relates to the field of spray gun structures and comprises a device shell, a pressure adjusting device is arranged inside one end of the device shell, a connecting rod is arranged at the bottom of the pressure adjusting device, a connector is connected to the bottom of the connecting rod, and a liquid storage tank is arranged at the bottom of the connector. A holding rod is arranged at the position, on one side of the liquid storage tank, of the bottom of the device shell, the holding rod is connected with the device shell, and a connecting pipe matched with the pressure adjusting device is arranged in the device shell. Liquid in the liquid storage tank is pumped into the pressure adjusting device through the connector, the pressure of the liquid is controlled through the pressure adjusting device, then the pressurized liquid is conveyed into the connecting pipe, and therefore normal operation of the device is guaranteed. And meanwhile, the second connecting block and the first connecting block are used for mounting the lighting device and the hook through the limiting mounting groove, so that the whole device can be conveniently hung on the wall surface.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of spray gun structure, concretely is a spray gun. BACKGROUND

[0002] The spray gun is a device that uses liquid or compressed air as power, and it is widely used in many fields. The spray gun is a device that includes a gun body and a gun head. The gun body and the gun head are connected by a connecting mechanism. The gun head includes a nozzle. Through air flow or liquid flow, paint, varnish or other liquid substances are atomized and sprayed onto the target surface.

[0003] The working principle of the spray gun is based on Bernoulli's law, which states that the pressure of a fluid decreases as its velocity increases. When compressed air or an external pressure source is ejected through the air cap at the front of the spray gun, a low-pressure area is created in front of the paint nozzle connected to it, which is lower than atmospheric pressure. This pressure difference sucks paint from the paint tank and atomizes it into particles under the action of high-speed air jet force, which are sprayed onto the surface of the coated object.

[0004] In the spray gun system, the motor is the key component that drives the pump. The function of the pump is to extract liquid (such as paint, coating, etc.) from the tank and deliver it to the spray gun nozzle through the pipeline. The motor provides power to drive the mechanical structure inside the pump to operate, thereby achieving the extraction and delivery of the liquid. At the same time, the motor not only drives the pump to operate, but also controls the flow of the liquid by adjusting its speed. By adjusting the speed of the motor, the extraction speed of the pump can be changed, and the flow rate of the liquid at the spray gun nozzle can be adjusted. This helps to achieve more accurate coating results and meet the needs of different application scenarios.

[0005] However, the existing spray gun is generally used for a long time in actual use. As the use time increases, the temperature inside the entire motor will increase over time. After a long time of use, the motor may overheat, resulting in an increase in failure rate. INVENTION CONTENTS

[0006] Therefore, the utility model aims to provide a spray gun to solve the technical problem that the existing spray gun is generally used for a long time in actual use. As the use time increases, the temperature inside the entire motor will increase over time. After a long time of use, the motor may overheat, resulting in an increase in failure rate.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a spray gun, including device shell, one end inside device shell is provided with pressure regulating device, the bottom of pressure regulating device is provided with connecting rod, the bottom of connecting rod is connected with connector, the bottom of connector is provided with liquid storage tank, the bottom of device shell is provided with holding rod on one side of liquid storage tank, holding rod is connected with device shell, the inside cooperation pressure regulating device of device shell is provided with connecting pipe, the cooperation connecting pipe of pressure regulating device is provided with liquid outlet, the inside cooperation pressure regulating device of device shell is provided with motor fixed structure, the inside of motor fixed device is provided with control motor, the top of device shell is provided with limit installation groove, the inside limit installation groove can install lighting device and suspension device respectively.

[0008] Through the above technical scheme, the holding rod is set to hold the whole device, the spray head is conveniently aimed at the specified position for spraying, the pressure regulating device is set to cooperate with the control motor to control the pressure and opening of the whole spray gun, and therefore the spraying effect is realized.

[0009] The utility model further sets up, motor fixed structure includes first limit piece, second limit piece, third limit piece and fourth limit piece, second limit piece and third limit piece are adjacent setting, first limit piece and fourth limit piece are adjacent setting, control motor sets up between two groups of limit pieces.

[0010] Through the above technical scheme, the connecting plate of the motor two ends is clamped through the two groups of limit pieces, and different models of motors can be installed through the limit piece setting, and it is not limited to one model of motor.

[0011] The utility model further sets up, the second air inlet groove is set up on the one end of device shell away from pressure regulating device, and the first air inlet groove is symmetrically set up at the connecting place of device shell and pressure regulating device.

[0012] Through the above technical scheme, the second air inlet groove cooperates with the first air inlet groove to make the air flow in the device shell, the control motor is cooled during the spraying work of the spray gun, the overheating failure of the device caused by the heating of the control motor during long-time spraying is prevented, and the use experience of the user is ensured.

[0013] The utility model further sets up, the lighting device includes second connecting block, second connecting block sets up in limit installation groove, the second connecting block is connected with clamping block, and the clamping block is provided with illuminating lamp.

[0014] By adopting the above technical scheme, the clamping block is fixedly installed through the fixed connection of the limiting installation groove and the second connecting block, then the illuminating lamp is installed into the clamping block, the illuminating lamp is straightly irradiated to the front, and the wall surface is illuminated when spraying, thereby assisting the operator to observe the accuracy of the spraying position.

[0015] The utility model further sets up, the suspension device includes first connecting block, first connecting block sets up in the limiting installation groove, be provided with the hook on first connecting block.

[0016] By adopting the above technical scheme, the clamping block is fixedly installed through the fixed connection of the limiting installation groove and the second connecting block, then the illuminating lamp is installed into the clamping block, the illuminating lamp is straightly irradiated to the front, and the wall surface is illuminated when spraying, thereby assisting the operator to observe the accuracy of the spraying position.

[0017] The utility model further sets up, the pressure regulating device is provided with the adjustment knob away from the one end of control motor.

[0018] By adopting the above technical scheme, the adjustment knob is mainly used to adjust the size of the valve in the pressure regulating device by rotating, thereby achieving the pressure regulating effect

[0019] The utility model further sets up, the grip rod is set up hollow structure, the grip rod bottom is provided with battery installation groove, battery installation groove is installed with battery, one side of battery installation groove is provided with connecting port.

[0020] By adopting the above technical scheme, the battery can be installed into the battery installation groove through the battery installation groove, then the line in the handle is powered through the control motor, the power supply line is connected through the connecting port, the line in the handle is connected, thereby powering the control motor and ensuring the normal operation of the control motor.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] The utility model extracts the liquid in the liquid storage tank into the pressure regulating device through the connector, controls the liquid pressure through the pressure regulating device, then delivers the pressurized liquid into the connecting pipe, controls the opening through the control motor, sprays the liquid from the spray head, makes the air of the device shell flow through the cooperation of the first air inlet groove and the second air inlet groove, cools the control motor to prevent the overheating failure of the control motor, thereby ensuring the normal operation of the device, and the second connecting block and the first connecting block are installed through the limiting installation groove, the illuminating device and the hook are installed, and the whole device is hung on the wall. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 For the device of the utility model Figure 2 Another structure schematic view;

[0025] Figure 3 For the device of the utility model internal structure schematic view;

[0026] Figure 4 For the device of the utility model internal structure schematic view;

[0027] Figure 5 For the device of the utility model Figure 5 Another structure schematic view;

[0028] Figure 6 For the device of the utility model internal structure schematic view;

[0029] In the figure: 1, device shell; 2, clamping block; 3, illuminating lamp; 4, first air inlet groove; 5, battery installation groove; 6, hook; 7, first connecting block; 8, adjusting knob; 9, liquid storage tank; 10, holding rod; 11, connecting port; 12, second connecting block; 13, connecting pipe; 14, connecting rod; 15, connector; 16, first limit sheet; 17, second limit sheet; 18, third limit sheet; 19, fourth limit sheet; 20, limit installation groove; 21, pressure regulating device; 22, liquid outlet; 23, control motor; 24, second air inlet groove; 25, spray head. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model and cannot be understood as limiting the utility model.

[0031] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0032] A spray gun, such as Figures 1-6As shown, including device shell 1, one end of the device shell 1 is internally provided with pressure regulating device 21, the bottom of the pressure regulating device 21 is provided with connecting rod 14, the bottom of the connecting rod 14 is connected with connector 15, the bottom of the connector 15 is provided with liquid storage tank 9, the connector 15 is mainly used for extracting the liquid in the liquid storage tank 9 to the pressure regulating device 21, and the liquid is pressurized by the pressure regulating device 21, the connecting pipe 13 is arranged in the device shell 1 matched with the pressure regulating device 21, the pressure regulating device 21 is matched with the connecting pipe 13 and provided with liquid outlet 22, the motor fixing structure is arranged in the device shell 1 away from the pressure regulating device 21, the control motor 23 is arranged in the motor fixing structure, the pressurized liquid is delivered into the control motor 23 through the liquid outlet 22, and the spraying operation is controlled by the control motor 23.

[0033] Further, the device shell 1 is provided with a handle 10 on one side of the liquid storage tank 9, the handle 10 is connected with the device shell 1, in actual use, the handle 10 is held to align the device shell 1 with the spraying position for spraying, ensuring the spraying effect,

[0034] The control motor 23 is connected with the spray head 25 away from the pressure regulating device 21, the limiting installation groove 20 is formed in the top of the device shell 1, the lighting device and the suspension device can be respectively installed in the limiting installation groove 20, wherein the lighting device comprises a second connecting block 12, the second connecting block 12 is arranged in the limiting installation groove 20, the clamping block 2 is connected on the second connecting block 12, the illuminating lamp 3 is arranged on the clamping block 2, the suspension device comprises a first connecting block 7, the first connecting block 7 is arranged in the limiting installation groove 20, the hook 6 is arranged on the first connecting block 7, in actual use, the second connecting block 12 can be installed in the installation groove 20, at this time, the illuminating lamp 3 is installed on the clamping block 2, the illuminating lamp 3 is consistent with the direction of the spray gun, so that the spraying position is illuminated when the spray gun sprays, ensuring the spraying effect, and after the spraying work is completed, the second connecting block 12 is taken out of the installation groove 20, after the spraying operation is completed, the first connecting block 7 can be installed in the installation groove 20, at this time, the first connecting block 7 is connected with the device shell 1, so that the entire spray gun can be hung on the wall surface when not in use.

[0035] Further, in order to match different motor structures, the motor fixing structure is arranged in the application, the motor fixing structure comprises a first limiting piece 16, a second limiting piece 17, a third limiting piece 18 and a fourth limiting piece 19, the second limiting piece 17 and the third limiting piece 18 are arranged adjacent to each other, the first limiting piece 16 and the fourth limiting piece 19 are arranged adjacent to each other, the control motor 23 is arranged between the two groups of limiting pieces and is limited by the two groups of limiting pieces, and the two ends of the motor are fixed.

[0036] On the basis of the above structure, the second air inlet groove 24 is arranged on the end of the device shell 1 away from the pressure regulating device 21, and the first air inlet groove 4 is symmetrically arranged at the connection between the device shell 1 and the pressure regulating device 21. Through the first air inlet groove 4 and the second air inlet groove 24, the air in the device shell 1 flows when the motor works, so as to stabilize the temperature in the device shell 1 and ensure the stable operation of the motor, thereby preventing the motor from overheating and causing overheating failure.

[0037] The adjusting knob 8 is arranged at the end of the pressure regulating device 21 away from the control motor 23, the pressure of the pressure regulating device 21 is adjusted through the adjusting knob 8, and the pressure of the spray gun is adjusted.

[0038] The handle 10 is arranged in a hollow structure, the battery mounting groove 5 is arranged at the bottom of the handle 10, the battery is mounted in the battery mounting groove 5, the battery in the mounting groove 5 provides power for the control motor 23, and the connecting port 1 is arranged on one side of the battery mounting groove 5. The connecting port 1 can be connected to external wired power and can also provide power for the control motor 23.

[0039] It is worth mentioning that the control motor 23 arranged in the motor fixing structure in the application is different from the existing motor arrangement, that is, the control motor 23 in the application is arranged in reverse, that is, towards the pair of first air inlet grooves 4. Through such arrangement, in the actual spraying work, the heating end of the control motor 23 is closer to the first air inlet groove 4 through the air flow in the second air inlet groove 24, so as to achieve better heat dissipation effect.

[0040] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model. However, as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A spray gun, comprising a device housing (1), characterized in that: A pressure regulating device (21) is provided inside one end of the device housing (1), a connecting rod (14) is provided at the bottom of the pressure regulating device (21), a connector (15) is connected to the bottom of the connecting rod (14), a liquid storage tank (9) is provided at the bottom of the device housing (1), a gripping rod (10) is provided on one side of the liquid storage tank (9), the gripping rod (10) is connected to the device housing (1), a connecting pipe (13) is provided in the device housing (1) in conjunction with the pressure regulating device (21), a liquid outlet (22) is provided in the pressure regulating device (21) in conjunction with the connecting pipe (13), a motor fixing structure is provided in the device housing (1) away from the pressure regulating device (21), a control motor (23) is provided in the motor fixing structure, and one end of the control motor (23) away from the pressure regulating device (21) is connected to the nozzle (25), a limited mounting groove (20) is provided at the top of the device housing (1), and a lighting device and a suspension device can be installed in the limited mounting groove (20) respectively.

2. A spray gun according to claim 1, characterized in that: The motor fixing structure comprises a first limiting piece (16), a second limiting piece (17), a third limiting piece (18) and a fourth limiting piece (19); the second limiting piece (17) and the third limiting piece (18) are arranged adjacent to each other; the first limiting piece (16) and the fourth limiting piece (19) are arranged adjacent to each other; and the control motor (23) is arranged between the two groups of limiting pieces.

3. A spray gun according to claim 1, characterized in that: A second air inlet groove (24) is provided on one end of the device housing (1) away from the pressure regulating device (21), and in coordination therewith, a first air inlet groove (4) is symmetrically provided at the connection between the device housing (1) and the pressure regulating device (21).

4. A spray gun according to claim 1, characterized in that: The lighting device comprises a second connecting block (12), the second connecting block (12) being arranged in a position-limiting mounting groove (20), the second connecting block (12) being connected to a clamping block (2), and a lighting lamp (3) being arranged on the clamping block (2).

5. A spray gun according to claim 1, characterized in that: The suspension device comprises a first connecting block (7), the first connecting block (7) is arranged in a position-limiting installation groove (20), and a hook (6) is provided on the first connecting block (7).

6. A spray gun according to claim 1, characterized in that: An adjustment knob (8) is provided at one end of the pressure regulating device (21) away from the control motor (23).

7. The spray gun according to claim 1, characterized in that: The grip (10) is configured as a hollow structure. A battery installation slot (5) is provided at the bottom of the grip (10). A battery is installed in the battery installation slot (5). A connection port (11) is provided on one side of the battery installation slot (5).

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