TWM487147U - Improved low-pressure high-volume paint spray gun structure - Google Patents

Description

Structural improvement of low pressure and high flow spray gun

This creation department is the first to improve the structure of a low-pressure high-flow paint spray gun, especially a spray gun to adjust the airflow and pressure paint cup structure improvement design, which is mainly near the side of the gun head, with an air flow adjustment group and a close gun hook The rear end is provided with a rotatable pressure joint, the air flow adjustment group can close or adjust the flow rate of the airflow, and provide the area and distance for changing the spray head of the spray gun; the rotary pressure joint can provide the paint cup pressure tube The optimum angle of connection and ensure that the paint cup is stable to provide the amount of paint required to operate the spray gun.

The conventional spray gun, as shown in Bulletin No. 241571, combines the airflow adjustment with the tip structure. When adjusting the airflow, the user can adjust the flow required for the injection more intuitively, but as shown in the first figure, The aperture and area of the airflow can be small, and it is difficult to maintain high flow rate under low pressure. Due to the low pressure relationship, the paint flow of the paint bottle is relatively low under the siphon principle, and the paint flow is relatively low. The gun failed to provide a pressurized supply, which is prone to insufficient paint supply during the painting process; as shown in the certificate No. M315117, the airflow adjustment is set on the upper part of the gun body, and the adjustment knob is set on the gun body. At the rear, when the user adjusts the operation, one hand holds the gun and the other hand adjusts. The relevant position space of the two hands is not quite enough. This adjustment has its advantages, and because the adjustment parts are extended from the rear of the gun to the close of the gun head, in addition to affecting the flow, it may also cause turbulence, which hinders the stability of the airflow of the spray gun. Although there is a joint for the paint cup pressurization, the position is fixed, and when the work is hindered, it cannot be properly adjusted and is inconvenient.

Both of the above-mentioned items are created by the creators for more refined products. After the listing, they are also well received in the industry. However, after collecting the opinions of the market, the creators have made the preparations mentioned in the preceding paragraph The point of dissatisfaction, the creator hoards the experience of this industry for many years, after many sample trials and experiments, the first creation of this creation.

That is to say, the present invention provides a structural improvement of a low-pressure high-flow spray gun, the main purpose of which is to provide a swirling pressure joint at the side of the gun head near the end of the gun head and a rear end of the gun hook. The airflow adjustment group can close or adjust the flow rate of the airflow, and provide the area and distance for changing the spray head of the spray gun; the swivel pressure joint can provide the optimal angle for connecting the paint cup and ensure the stable supply of the paint cup. The amount of paint required to operate the spray gun.

10‧‧‧ gun group

11‧‧‧ adjustment seat

14‧‧‧ Near-Y-shaped airflow

20‧‧‧Airflow adjustment components

25‧‧‧ vent washer

30‧‧‧Fixed nuts

40‧‧‧Adjustment knob

42 wear ‧ ‧ screws

50‧‧‧ fixed seat

53‧‧‧First stop ring

60‧‧‧Pressure joint

61‧‧‧ stomata

62‧‧‧Second stop ring

63 positioning ‧‧‧E buckle

65‧‧‧ Pressurized joint

The first picture is a schematic diagram of the creation.

The second figure is a schematic cross-sectional view of the pressure joint of the present invention.

The third figure is a schematic cross-sectional view of the airflow adjustment group of the present creation.

The fourth picture is a schematic diagram of the action of the creation air flow adjustment group.

The fifth figure is a schematic diagram of the rotation of the creative compression joint.

As shown in the first to third figures, the creation system includes: a gun body group 10, and an adjustment seat 11 is disposed on the side of the rear side of the gun head. The seat port of the seat 11 is screwed with a thread 12 at the inner side, and the near thread portion is provided. There is a flat surface 13 and an approximately inverted Y-shaped air passage 14 is extended from the tip of the gun head. The first-class air passage is penetrated from the bottom of the adjusting seat 11 on the side of the rear side of the gun head, and the inner edge of the end of the inverted Y-shaped air passage 14 is approximated. The screw is provided with a thread 15; the air flow adjusting member 20 has one end pivoted in the adjusting seat 11 of the gun body set 10, and the end is an approximately cylindrical shape, and the end portion is recessed with a notch 21 for airflow therethrough. The outer circumference is provided with a first plane 22 and a second plane 23, and the first plane 22 and the second plane 23 are at an angle to each other, which planes correspond to the plane near the near thread in the adjusting seat 11 of the gun body group 10. 13, the other end of the airflow adjusting component 20 is provided with a screw hole 24, and is provided with a sluice washer 25; the fixing nut 30 has one end sleeved on the airflow adjusting component 20, and is surrounded by the outer circumference The thread 31 is screwed to the adjusting seat 11 of the gun body set 10; the adjusting knob 40 is sleeved on the airflow adjusting component 20, The hole is provided with a hole 41, and is screwed to the hole 41 by the screw 42 to be screwed to the airflow adjusting component 20; the fixing base 50 has a 51 at one end, a hole 52 at the bottom of the seat, and a sleeve at the other end. The first stagnation ring 53 is provided with a thread 54 screwed to the end of the gun body group 10 at the approximate inverted Y-shaped air passage 14; the pressure joint seat 60 has a vent hole 61 at one end end of the end face, the end The sleeve is provided with a second stagnation ring 62, which is pivotally disposed in the fixing base 50 and is positioned by an E-shaped buckle 63. The proximal end of the other end is provided with a screw hole 64 extending through the air hole 61 at the proximal end surface thereof, and is screwed and pressurized. Connector 65.

By the above-mentioned component composition, as shown in the fourth figure, the rotation adjustment knob 40 rotates the airflow adjusting member 20 so that the notch 21 of the airflow adjusting member 20 approximates the gun body group 10 to the Y-shaped airflow path 14 The road is open, by which the airflow of the flow channel is closed or opened; as shown in the fifth figure, since the pressure joint seat 60 is pivoted in the fixing base 50, it is restricted by the E-shaped buckle 63 and does not fall off, and Free rotation, which in turn allows the press fitting 65 to be adjusted at any angle.

In summary, compared with the habits, this creation has the following advantages over the habits:

1. The cross-sectional area of the airflow passage in the gun body group is not restricted by the mechanism, and a large airflow flow can be obtained.

2. There are not many mechanisms in the flow channel in which the turbulent flow of the airflow can be reduced, and the quality of the painting work is stabilized.

3. The adjustment knob has sufficient operating space and an ergonomic operating position.

4. When the paint cup pressure pipe is connected to the pressure joint, the angle can be arbitrarily adjusted to meet the requirements of the operation spray gun.

10‧‧‧ gun group

20‧‧‧Airflow adjustment components

25‧‧‧ vent washer

30‧‧‧Fixed nuts

40‧‧‧Adjustment knob

42‧‧‧ screws

50‧‧‧ fixed seat

53‧‧‧First stop ring

60‧‧‧Pressure joint

62‧‧‧Second stop ring

63 positioning ‧‧‧E buckle

65‧‧‧ Pressurized joint

Claims (5)

The utility model relates to a structural improvement of a low-pressure high-flow spray paint gun, comprising: a gun body group, wherein an adjustment seat is arranged on a side of a rear side of the gun head, and an air flow path of an approximately inverted Y shape is extended from the gun head; the air flow adjusting component is One end is pivotally disposed in the adjusting seat of the gun body set, and the other end end is provided with a screw hole and sleeved with a venting washer; the fixing nut is sleeved at one end on the airflow adjusting component and screwed to the gun body The adjusting seat of the group is set on the airflow adjusting component and screwed to the airflow adjusting component by screws; the fixing seat is sleeved with the first stagnation ring and screwed to the gun body group to approximate the Y-shaped airflow path The end of the pressure joint seat has a second stagnation ring at one end thereof, is pivoted in the fixing seat, and is positioned by an E-shaped buckle, and a pressure joint is screwed at a proximal end surface of the other end. The structure of the low-pressure high-flow paint spray gun according to claim 1 is improved, wherein the gun body group is near the rear adjustment seat of the gun head, the inner side of the seat is screwed with a thread, and the near thread is provided with a plane; The approximately inverted Y-shaped airflow path extending backward is connected to the base of the adjusting seat on the side of the rear side of the gun head, and the inner edge of the end of the inverted Y-shaped airflow passage is threaded. The structure of the low-pressure high-flow paint spray gun according to claim 1 is improved, wherein the air flow adjusting component has one end pivoted in the adjusting seat of the gun body set, and the end is an approximately cylindrical shape, and the end is concavely provided for The airflow passes through the gap, and is located near the outer periphery. The first plane and the second plane, the first plane and the second plane are at an angle to each other, the planes corresponding to the plane at the near thread in the adjustment seat of the gun body set. The structure of the low-pressure high-flow spray gun according to claim 1 is improved, wherein the fixing seat has a recess at one end and a hole is arranged at the bottom of the seat. The structure of the low-pressure high-flow spray gun according to claim 1 is improved, wherein the pressure joint seat has a hole at one end of the end face, and a screw hole through the air hole at the proximal end of the other end, and is screwed Pressurized joint.