TWI577451B - The structure of the air flow control knob - Google Patents

Description

Paint gun air volume control button structure

The invention relates to a structure of an air volume control button of a spray paint gun, in particular, through the structural composition design thereof, when the knob dialing body changes the degree of plugging resistance to the air passage, the air volume can be extremely reduced to a minimum Modulation, and its knob does not produce lateral rotation and screw-in displacement, making it easier to operate and convenient.

According to the general design of the spray gun, the gun body is provided with a joint to connect the paint tank, and a gas pipe is provided to introduce the aerodynamic force, and then the trigger pressure control installed on the handle portion is used to determine the intake air and No, the paint is taken out by the spraying of the nozzle by the gas, and is sprayed by the atomizing effect, and the effect of the atomization depends on the amount of the air blow, and the amount of the air blow is on the side of the gun body. The rotation of the control knob is achieved by driving the displacement of the inner plug body.

For the control of the air volume of the spray gun, please refer to the figures 1~3, mainly for the groove (11) of the inner air passage of the spray gun (10). An inner thread is formed on the inner wall of the through groove (11), and a set of sleeves (12) can be screwed and locked, and a single wire rewinding inner diameter screw hole is further arranged at the inner end of the sealing sleeve (12). The assembly body is provided with a plug body (13) having an external thread, and the outer end of the plug body (13) is exposed to the outside of the seal sleeve (12) and is sleeved with a stop ring (14). The outer part of the plug body (13) is made into a hexagonal rod section and has a bolt hole, and the knob (15) is combined and fixed by bolts (16), thereby forming a side-rotating spray gun air volume. Control button.

In the air volume control of the spray gun, the rotation of the knob (15) is used to drive the plug body (13) to be screwed or screwed along the guide hole of the inner sleeve of the seal sleeve (12), and The inner diameter screw hole of the sleeve (12) adopts single-thread thread rewinding, so the knob (15) may have to rotate the plug body (13) more than one turn in order to adjust its air volume to be extremely large and small. Regulating the stroke, and with the regulation of its air volume, its knob will inevitably produce a lateral shift, which will cause its entire regulation and control operation to be unsatisfactory, and it is necessary to solve the improvement.

In view of the conventional airbrush control, its knob will be laterally displaced with the screwing or unscrewing of the plug body, and the knob must be rotated more than one turn to adjust the plug body from the maximum air volume to the minimum. The amount of wind, which invisibly affects the smoothness of its operation, is a necessary method to solve the improvement.

In the design of the air volume control button of the spray paint gun, the plug body and the knob are separated and assembled, and the hexagonal bolt is inserted into the hexagonal hole of the plug body, and then locked with the knob insert. At the same time, the external thread of the plug body and the inner diameter screw hole of the seal sleeve are planned to be four-circle-threaded, so that the air volume can be greatly adjusted to a minimum when only a quarter of the stroke of the conventional structure is required. The knob does not cause lateral displacement.

The spray gun air volume control button of the invention is designed according to the structure of the structure, so that the air volume can be adjusted to a very small degree with only a slight adjustment, and the knob does not generate the lateral rotation and the screw-in displacement, thereby Make it easier to operate and convenient.

(10)‧‧‧Painting gun

(11) ‧‧‧through slots

(12)‧‧‧Set of sets

(13) ‧‧‧ body

(14) ‧‧‧ Stop ring

(15)‧‧‧ knob

(16)‧‧‧Bolts

(20)‧‧‧Painting gun

(21) ‧‧‧through slots

(30) ‧‧‧ Sets

(31)‧‧‧Down Thread

(32) ‧‧‧Perforation

(33) ‧ ‧ 密环环

(40) ‧ ‧ ‧ body

(41)‧‧‧ external thread

(42) ‧‧‧ hexagonal bore

(50)‧‧‧Hex bolts

(51)‧‧‧stop ring

(52) ‧‧‧ round section

(53) ‧‧‧Hex joints

(54)‧‧‧Bolt holes

(60)‧‧‧ knob

(61)‧‧‧hex joint groove

(62) ‧‧‧Bolts

Fig. 1 is a schematic view showing the partial structure decomposition of a conventional spray gun.

Figure 2: Schematic diagram of the structure of the conventional paint spray gun air volume control button.

Figure 3: Schematic diagram of the structure relationship between the conventional paint spray gun and the air volume control button.

Fig. 4 is a schematic view showing the partial structure of the spray gun of the present invention.

Fig. 5 is a schematic exploded view showing the air volume control button of the spray gun of the present invention.

Fig. 6 is a schematic view showing the structure of the plug body of the spray gun air volume control button of the present invention.

Fig. 7 is a schematic view showing the structural relationship between the spray gun and the air volume control button of the present invention.

Fig. 8 is a schematic view showing the operation relationship between the spray gun and the air volume control button of the present invention.

Regarding the structural composition, technical means and efficacy of the present invention, it is further described in detail with reference to the following figures: Please refer to Figures 4-8 to illustrate the preferred embodiment of the present invention, as shown in the figure. As shown in the present invention, in the design of the air volume control button of the spray gun, a through groove (21) transversely penetrating the inner air passage is formed on the side of the gun of the spray gun (20), and the inner wall of the through groove (21) is formed. An internal thread is provided, and a set (30) can be screwed and locked, and an inner diameter screw hole (31) which is divided into four turns is formed at the inner end of the seal sleeve (30), thereby screwing A plug body (40) having a four-section split-wound external thread (41) is provided, and an outer hexagon end hole (42) is formed on the outer end of the plug body (40), and a plug-in assembly is provided. An additional hexagonal bolt (50), the hexagonal bolt (50) is provided with a stop ring (51) and a round rod segment (52) in a rod section of the through hole (32) of the seal sleeve (30). The hexagonal bolt (50) and the seal sleeve (30) are placed in a non-coupling relationship, and a hexagonal joint section (53) and a bolt hole (54) are formed at the outermost end of the hexagonal bolt (50). , 俾 on the hexagonal bolt (50) through the seal sleeve (30) and the front end When the density of the stop ring packing set (33), only the binding hexagonal section (43) to highlight on the outside, serve for Inserted into a hexagonal coupling groove (61) formed inside a knob (60) and locked by a bolt (62), thereby forming an overall functional structure of the airbrush control knob of the spray gun of the present invention; It is implemented in the air volume control function of the spray gun, and uses the external thread (41) of the plug body (40) and the inner diameter screw hole (31) of the seal sleeve (30) to circumscribe the thread type, so that it is rotated. When the knob (60) drives the hexagonal bolt (50) to rotate or screw in the plug body (40) to change the air volume, only a quarter of the stroke can be used to achieve a very large to very small volume change. The socket design of the hexagonal hole (42) and the hexagonal bolt (50) of the body (40), and the round rod type of the hexagonal bolt (50) and the sealing sleeve (30), so that the knob (60) When the hexagonal bolt (50) is rotated, it does not involve the seal sleeve (30) and has a hollow transition state, so that the knob (60) does not cause lateral displacement in the air volume control, thus, The whole regulation and control operation is more convenient and convenient, and can effectively solve the problems and defects of the conventional air volume control knob of the spray gun; that is, through the above description, it can be seen that the creation is in the spray gun The design of the air volume control button has the convenience of one-hand control provided by the air volume control button on the side of the spray gun, and further connects the plug body and the knob with the hexagon bolt bolt to make the knob operate the plug body. When it is screwed in and out, it can be idling without lateral displacement, and the thread type of the inner thread of the plug and the inner diameter of the sleeve of the sleeve are twisted, so that only a slight adjustment stroke is required. It can achieve the full-stroke control of the maximum to the smallest air volume, and break through the inconvenience that the similar products must rotate more than one turn, which can give better control and convenience, and achieve excellent industrial utilization and practical value. In summary, the airbrush control knob structure of the present invention is configured by the thread planning of the plug body and the seal sleeve, and the plug body under the lateral adjustment of the air volume control button by one hand. The transfer function of the hexagonal bolt with the knob is that it can achieve a more convenient and convenient implementation of the air volume control of the spray gun, which can solve the problem of the unsatisfactory perfection of the similar products. Overall, It has excellent industrial utilization and practical value, and patent applications are filed according to law.

(30) ‧‧‧ Sets

(31)‧‧‧Down Thread

(32) ‧‧‧Perforation

(33) ‧ ‧ 密环环

(40) ‧ ‧ ‧ body

(41)‧‧‧ external thread

(42) ‧‧‧ hexagonal bore

(50)‧‧‧Hex bolts

(51)‧‧‧stop ring

(52) ‧‧‧ round section

(53) ‧‧‧Hex joints

(54)‧‧‧Bolt holes

(60)‧‧‧ knob

(62) ‧‧‧Bolts

Claims (2)

The utility model relates to a wind volume control button structure of a spray paint gun, which mainly comprises a through groove extending transversely to the inner air passage on the side of the spray gun, and an internal thread is formed on the inner wall of the through groove, and the thread can be screwed and locked with a center The perforated sealing sleeve is provided with an inner diameter screw hole at the inner end of the sealing sleeve, whereby the screwing group is provided with a plug body having a fitting external thread, and the plug body is controlled by a knob located outside the sealing sleeve The screw plug can be screwed or unscrewed to change the degree of plugging of the air passage channel to adjust the air volume of the spray gun; the improvement is that the plug body has a hexagon socket at its outer end. The hexagonal bolt can be inserted into the hexagon socket, and the hexagonal bolt is placed on the perforated section of the sleeve to be provided with a stop ring and a round rod section, so that the hexagon bolt and the seal The set of sleeves is worn but not interlocked, and a hexagonal joint and a bolt hole are formed at the outermost end of the hexagonal bolt, so that the hexagonal bolt passes through the seal sleeve and the seal ring filled on the front end surface. Only the hexagonal joint section is protruded, and the cymbal is inserted into the hexagonal joint groove formed inside the knob, and is Be keying bolt, whereby the knob was idle patterns which constitute the spray gun when air flow regulation button by operating a plug screwed in or out. According to the air volume control button structure of the spray gun of claim 1, wherein the external thread of the plug body and the inner diameter screw hole of the seal sleeve are matched by a four-cut screw thread setper.