TWM580463U - Paint control structure of paint spray gun - Google Patents

Abstract

A paint amount control structure for a spray paint gun, comprising: a paint spray gun and a control unit, the control unit adjusts a displacement distance of the needle valve of the paint spray gun, thereby controlling a paint spray diameter and a concentration during a painting operation, and the control unit comprises a fixing seat, a limiting member and a knob member, wherein the fixing seat is provided with an axial scale on the adjusting section, and the knob member is sleeved outside the adjusting section by the covering section, and has a ring direction on the outer diameter The scale allows the user to accurately and clearly adjust the data of the current adjustment when the user adjusts the knob. The limiter and the knob of the control unit can be independently adjusted. The limiter and knob can be adjusted independently. The parts form a zero return state, which avoids the incorrect marking scale of the knob parts and affects the quality of the painting, so that the paint gun can be adjusted more accurately to ensure the quality and effect of the painting operation.

Description

Paint gun paint control structure

This creation is about a spray gun, especially a paint control structure for a spray gun.

According to the general design of the spray gun, the gun body is mainly provided with a suitable gun body, and a joint is arranged at the lower end of the handle of the gun body to receive the air pressure device, and the pressure is set by the front end of the upper end of the handle. The handle is matched with a preset air volume adjustment knob on one side or the rear to control the air intake or not, and the adjustment control of the air intake amount is provided, and a nozzle is arranged at the muzzle portion of the gun body, and a nozzle is arranged on the upper part of the gun body. The hole is combined for setting up the paint can, and at the rear end thereof, a flow adjustment knob is further provided, and the flow adjustment knob is used to adjust the amount of paint. According to the spray gun formed by the user, the user can use Through the adjustment of the air volume adjustment knob and the selection of the paint amount of the nozzle, it can be adjusted according to the working environment, the paint target and various requirements to achieve the best paint quality.

In the assembly design of the flow adjustment knob of the spray gun, please refer to FIG. 8 , which is mainly provided with a female threaded coupling hole 31 at a predetermined position of the spray gun 30, and is screwed into the joint hole 31. The joint end 32 of the guide seat 32 is provided with a male threaded portion for screwing the guide seat into the internal threaded coupling hole 31, and the inside of the guide seat 32 is formed inside. The diameter hole 34 is assembled with a spring 35 and a valve stem 36, and the inner wall of the inner diameter hole 34 is internally threaded to be screwed together. The knob 37 is controlled by the knob 37 to change the relative relationship between the spring 35 and the valve stem 36 to determine the flow rate of the paint to achieve adjustment and control of the paint function.

From the structure of the above, the guide 32 and the knob 37 are adjusted and changed according to the degree of screwing, so the screw lock design of the inner and outer threads must be adopted, so that the guide 32 and the knob 37 need to be respectively rotated. Control adjustment, firstly adjust the distance between the knob 37 and the valve stem 36, thereby adjusting the displacement of the valve stem 36, and secondly, adjusting the tension state of the guide seat 32 and the coupling hole 31 to prevent the knob 37 from loosening. The adjustment must be carried out simultaneously with both hands, and it is necessary to repeat the loosening or screwing operation. The adjustment and control are troublesome and time consuming, and the working time of the painting operation is invisibly increased, and the conventional structure adjustment is not The corresponding scale allows the user to adjust the control, it is difficult to obtain a suitable flow rate, and there is an error or a mis-touch after the adjustment causes the setting to run away, resulting in a lack of accuracy in each use, and it is difficult to achieve the quality of the painting. Hard to call the ideal design, it is necessary to try to solve the improvement.

Looking at the above-mentioned conventional structure, it is not difficult to find that there are still some shortcomings. The main reasons are as follows: In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the design and careful evaluation, the original creation is practical.

The technical problem to be solved by the present invention is to provide a paint amount control structure for the spray gun in view of the above-mentioned shortcomings existing in the prior art.

The above structure comprises: a spray gun and a control unit, wherein the spray gun controls the paint amount of the paint through a needle valve and a pressure handle, and the spray gun end is along the needle valve The actuating path is provided with an adjusting hole communicating with the inner diameter of the adjusting hole; the control unit comprises a fixing seat, an elastic member, a limiting member and a knob member, and the fixing seat is hollow The front end of the fixing seat is provided with a necking section toward the needle valve, and a leading hole is disposed at the end of the necking portion to communicate with the chamber, and the interior of the housing portion forms a blocking wall facing the necking portion. Further, the middle portion of the fixing seat is provided with an external thread segment and a limiting portion having an outer diameter larger than the outer diameter of the external thread segment, and an end portion of the fixing seat is provided with an adjusting section, the outer diameter of the adjusting section is cylindrical and the shaft An axial scale is provided, and an end of the adjusting section is provided with an internal thread, and the guiding hole is in communication with the chamber, and the elastic member is received in the housing and abuts against the blocking wall. An external thread segment is arranged in the front section of the bit member and locked into the guide hole of the fixing seat, and the limiting member is provided with a limiting pocket toward the axial direction of the needle valve system, and the knob member is provided with a set of holes and sleeves. The bundle is fixed to the outside of the limiting member, and the front section of the sleeve hole is provided with a covering section for the reaming hole, and the covering section is sleeved on the The holder segment outer adjustment, should the knob member to be coated with segments of the outer diameter of the ring system to scale, thereby controlling the amount of the paint sprayed through the spray gun with the limiting member and the knob member.

Preferably, the fixing seat is coupled to the adjusting hole by a screw, and the gasket is clamped between the adjusting hole and the limiting portion, and the outer diameter of the limiting portion is non-cylindrical to form a tool. Card joint.

Preferably, a limiting block is disposed at the end of the limiting slot of the limiting member.

Preferably, the outer diameter of the knob member is radially provided with a screw hole, and a screw is locked against the outer diameter of the limiting member, so that the knob member forms a twisted state with the limiting member.

Compared with the effects of the prior art: (1) The creation system adjusts the displacement distance of the needle valve through the control unit, thereby controlling the paint diameter and concentration during the painting operation, and the fixing seat is provided with an axial scale in the adjustment section, The knob member is sleeved outside the adjustment section, and has a ring-shaped graduation on the outer diameter, so that the user can accurately and clearly let the user view the current adjustment data when adjusting the knob of the control unit. In addition, it facilitates the control operation of the paint amount and enhances the practicability of the structure.

(2) The limiter and the knob of the control unit can be independently adjusted. Before the user paints, the limiter and the knob can be independently adjusted to form a zero return state, so that the user can carry out the painting operation and adjust the control. It can avoid the incorrect marking scale of the knob parts and affect the painting quality, so that the paint gun can be adjusted more accurately, ensuring the quality and effect of the painting operation.

10‧‧‧ spray gun

101‧‧‧Adjustment hole

11‧‧‧ needle valve

12‧‧‧ Pressure handle

20‧‧‧Control unit

21‧‧‧ Fixed seat

211‧‧ ‧ room

212‧‧‧neck section

213‧‧‧ lead hole

214‧‧‧ Guard against the wall

215‧‧‧ external thread section

216‧‧‧Limited paragraph

217‧‧‧Tools interface

218‧‧‧ adjustment section

219‧‧‧ axial scale

210‧‧‧ rear guide hole

22‧‧‧Flexible parts

23‧‧‧Limited parts

231‧‧‧External thread section

232‧‧‧Limited pocket

233‧‧‧ Buffer block

24‧‧‧ knob parts

241‧‧‧ sockets

242‧‧‧ screw holes

243‧‧‧ screws

244‧‧ ‧ covered section

245‧‧‧ring scale

25‧‧‧Washers

[study]

30‧‧‧ spray gun

31‧‧‧Combination hole

32‧‧ ‧ guide

33‧‧‧Binding end

34‧‧‧ inner diameter hole

35‧‧‧ Spring

36‧‧‧ valve stem

37‧‧‧ knob

Figure 1: This is a perspective view of the creation.

Figure 2: This is an exploded view of the creation.

Figure 3: This is a schematic diagram of the independent adjustment of the knob parts of the creation.

Figure 4: This is a combination of the creations.

Figure 5: A cross-sectional view of the combination of the creations.

Figure 6: This is a schematic diagram of the adjustment state of the creation.

Figure 7: A cross-sectional view of the adjustment state of the creation.

Figure 8: A schematic diagram of the prior art.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [Simplified Description of the Drawings] for details: First, please refer to Figures 1 and 2 below. A paint amount control structure for a spray gun, comprising: a spray gun 10 and a control unit 20, the spray gun 10 is coupled with a press handle 12 via a needle valve 11 Controlling the amount of paint to be sprayed, and the end of the spray gun 10 is provided with an adjusting hole 101 communicating with the needle valve 11 . The inner diameter of the adjusting hole 101 is provided with an internal thread segment; the control unit 20 includes a fixing a seat 21, an elastic member 22, a limiting member 23 and a knob member 24, the fixing seat 21 is hollowly provided with a chamber 211, and a front end of the fixing seat 21 is provided with a necking portion 212 toward the needle valve 11, The front end of the neck portion 212 is connected to the chamber 211, and the interior of the chamber 211 faces the neck portion 212 to form a blocking wall 214 (as shown in FIG. 5). An outer threaded section 215 and a limiting section 216 having an outer diameter larger than the outer diameter of the outer threaded section 215 are formed in the middle of the seat 21, and the outer diameter of the limiting section 216 is non-cylindrical to form a tool engaging portion 217, and the fixing An adjustment section 218 is disposed at the end of the seat 21, the outer diameter of the adjustment section 218 is cylindrical and is axially marked with an axial scale 219, and the end of the adjustment section 218 is provided with an internal thread and the guide hole 210 and the volume The 211 is communicated with the elastic member 22, and the elastic member 22 is received in the chamber 211 and abuts against the blocking wall 214. The front end of the limiting member 23 is provided with an external thread segment 231. And the locking hole 232 is disposed in the guiding hole 21, and the limiting member 23 is disposed in the axial direction of the needle valve 11 to form a limiting pocket 232. The limiting receptacle 232 is further provided with a buffer block 233. The knob member 24 is provided with a set of holes 241 and is sleeved and fixed to the outside of the limiting member 23, and the outer diameter of the knob member 24 is radially provided with a screw hole 242 to the sleeve hole 241, and a screw is locked. The 243 is pressed against the outer diameter of the limiting member 23, so that the knob member 24 and the limiting member 23 form a synchronous twisting state, and the front portion of the sleeve hole 241 is reamed with a covering portion 244, and the package is The covering portion 244 is sleeved outside the adjusting portion 218 of the fixing seat 21, and the knob member 24 is provided with a circumferential scale 245 corresponding to the outer diameter of the covering portion 244.

The structure of the structure, as shown in the figures 1, 2, 3, 4, and 5, the needle valve 11 is assembled into the spray gun 10 through the adjustment hole 101, and is connected to the pressure handle 12 in a group. The fixing valve 21 of the control unit 20 is first assembled in the adjusting hole 101 of the spray gun 10, and the fixing seat 21 is matched with a washer 25 and the adjusting portion. Hole 101 screw lock The clamping member 25 is clamped between the adjusting hole 101 and the limiting portion 216, and the end of the needle valve 11 is received in the chamber 211 through the leading hole 213, and the elastic member 22 is along The outer diameter of the needle valve 11 is accommodated in the chamber 211. The limiting member 23 is sleeved outside the needle valve 11 by the limiting pocket 232, and the external thread segment 231 is locked into the fixing seat 21. In the 210, the front end of the limiting member 23 abuts against the elastic member 22, and the displacement of the needle valve 11 is restricted by the limiting member 23. The knob member 24 is sleeved on the limiting member 23 by the sleeve hole 241. And moving along the limiting member 23 to the fixing seat 21 while being surrounded by the covering section 244 outside the adjusting section 218 of the fixing seat 21, and via the end edge of the knob member 24 and the adjusting section The axial scale 219 of the 218 is aligned as the basis of the paint spray amount. Finally, the screw hole 242 of the knob member 24 is locked into a screw 243 and the outer wall of the limiting member 23 is tightly fixed to complete the control unit 20 . installation.

For the actual use of the structure, please refer to Figs. 4 and 5 for the matching of the sixth and fifth figures. When the spray gun 10 is used, the pressure is shifted by the pressing of the needle 12 and the needle valve 11 to the adjustment hole 101. , the front end of the needle valve 11 is retracted to enable the paint to be sprayed out to achieve the purpose of painting. When the pressure handle 12 is released, the needle valve 11 will rebound to close the paint opening of the front end of the spray gun 10, but the spray gun 10 is used. Before, the limiting member 23 of the control unit 20 is fully locked into the guiding hole 21 and behind the guiding hole 21, and abuts against the end of the needle valve 11, so that the needle valve 11 cannot be retracted to form the closing of the spray gun 10. State, at this time, the knob member 24 should be located at the foremost end of the adjustment section 218, and the end edge is indicated at the scale 0 position of the axial scale 219, and the circumferential scale 245 of the knob member 24 is also scaled 0. Aligned with the axial scale 219, thereby rotating the knob member 24 and driving the stopper member 23 to be displaced backward when the spray gun 10 is used and adjusting the spray flow rate, and the displacement of the stopper member 23 The amount is simultaneously indicated by the hoop scale 245 of the knob member 24, and the knob member 24 is rotated one turn. After a displacement scale unit 219 will be along the axial direction of the mark, so that by rotating the knob member 24, the annular scale 245 The scale 5 is aligned with the axial scale 219, and when the end edge of the knob member 24 is located between the scales 2 and 3 of the axial scale 219, the state in which the limiting member 23 is displaced backward by 2.5 mm is formed. When the pressing handle 12 is pressed and the needle valve 11 is displaced backward, the needle valve 11 can be moved backward by 2.5 mm, and the displacement of the needle valve and the amount of painting can be adjusted according to the displacement of the needle valve of 2.5 mm, and the limit can be transmitted through the limit. The combination of the piece 23 and the knob member 24 controls the amount of paint sprayed by the spray gun 10.

Secondly, after the spray gun 10 is used, since the control unit 20 is rotated and adjusted according to the user's demand, there are some errors in the multiple rotation adjustments, so that the user cannot determine the knob member 24 and Whether the scale number displayed between the fixing bases 21 is correct, so that the painting quality is easily affected by the difference in the concentration and the setting of the spraying, so that the calibration unit can be zeroed through the control unit 20 before each painting operation. When the action is zero, the pressure handle 12 of the spray gun 10 is first relaxed, the needle valve 11 is completely rebounded and the paint opening is closed, and the limit member 23 is locked into the rear guide hole 210 and is limited. The end of the pocket 232 abuts against the end of the needle valve 11, so that the needle valve 11 is in an undisplaceable closed state, and finally the screw 243 of the knob member 24 is loosened, so that the knob member 24 can be displaced along the limiting member 23. And rotating (as shown in FIG. 3), and then aligning the end of the knob member 24 with the scale 0 of the axial scale 219, and then rotating the knob member 24 to position the scale 0 of the annular scale 245 with the axial scale 219 alignment, whereby the control unit 20 can be returned To facilitate the user to adjust and to obtain the correct scale and paint discharge amount corresponding to enhance the accuracy of the concentration of the paint.

With the structure of the above specific embodiment, the following benefits can be obtained: the creation unit adjusts the displacement distance of the needle valve 11 through the control unit 20, thereby controlling the paint opening diameter and concentration during the painting operation, and the fixing seat 21 is adjusted. The segment 218 is provided with an axial scale 219. The knob member 24 is sleeved outside the adjustment section 218 by the covering section 244, and has a circumferential scale 245 at the outer diameter for the user to pass the knob member 24 of the control unit 20. When adjusting, you can accurately and clearly let the user see the number of adjustments at the moment. According to the control operation of the paint amount, the utility of the structure is improved.

Furthermore, the limiting member 23 and the knob member 24 of the control unit 20 can be independently adjusted. Before the user performs the painting operation, the limiting member 23 and the knob member 24 can be independently adjusted to form a zero return state, so that the user can perform the painting operation. When the control is adjusted, the marking scale of the knob member 24 can be prevented from being incorrect, which affects the painting quality, and the spray gun 10 can be more accurately adjusted to ensure the quality and effect of the painting operation.

In summary, this creation has indeed achieved a breakthrough structural design, with improved creative content, while at the same time achieving industrial use and progress, and this creation has not been seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for the creation of a patent shall be filed according to law, and the examination of the member of the Bureau shall be granted a legal patent right.

Only the above-mentioned ones are only preferred embodiments of the present invention, and the scope of the implementation of the creation cannot be limited by them; that is, the equal changes and modifications made by the applicants in accordance with the scope of the patent application for this creation should still belong to the creation. Within the scope of the patent.

Claims (4)

The paint quantity control structure of the spray paint gun comprises: a spray paint gun, wherein the paint spray is controlled by a needle valve and a pressure handle, and the spray gun end is connected along the action path of the needle valve. An adjusting hole, the inner diameter of the adjusting hole is provided with an internal thread segment; a control unit comprises a fixing seat, an elastic member, a limiting member and a knob member, wherein the fixing seat is hollow with a chamber, the front end of the fixing seat Positioning a necking portion toward the needle valve, the end portion of the necking portion is provided with a leading hole communicating with the chamber, and the chamber facing the necking portion forms a blocking wall, and the middle portion of the fixing portion An externally threaded section and a limiting section having an outer diameter greater than an outer diameter of the externally threaded section are provided, and an end section of the fixing seat is provided with an adjusting section, the outer diameter of the adjusting section is cylindrical and axially marked with an axial direction a guide hole is disposed at the end of the adjustment section, and the guide hole is communicated with the chamber. The elastic member is received in the chamber and abuts against the blocking wall, and the front portion of the limiting member is provided a threaded section and locked into the guide hole of the fixing seat, and the limiting member faces the needle valve axial direction a limiting pocket, the knob member is hollowly provided with a set of holes and sleeved and fixed outside the limiting member, and a front section of the sleeve hole is provided with a covering section, and the covering section is sleeved In addition to the adjustment section of the fixing seat, the knob member is provided with a circumferential scale corresponding to the outer diameter of the covering section, thereby controlling the paint spray amount of the spray gun through the combination of the limiting member and the knob member. . The paint amount control structure of the spray gun according to claim 1, wherein the fixing seat is coupled to the adjusting hole by a washer, and the gasket is clamped to the adjusting hole and the limiting portion. And the outer diameter of the limiting section is non-cylindrical to form a tool engaging portion. The lacquer amount control structure of the spray gun according to the first aspect of the invention, wherein the end of the limiting pocket of the limiting member is provided with a buffer block. The paint amount control structure of the spray gun according to item 1 of the patent application scope, wherein the rotation The outer diameter of the button member is radially provided with a screw hole, and a screw is locked against the outer diameter of the limiting member, so that the knob member forms a twisted state with the limiting member.