TWI705856B - Air volume adjustment device of dust blowing gun - Google Patents

Abstract

A device for adjusting the air volume of a dust blowing gun, in particular that the body is provided with a vertical slot hole between the air inlet and the air outlet, the slot is provided with an elastic element and a valve seat, and the valve seat is provided with an air volume adjusting element, The valve seat is provided with a first air hole corresponding to the air outlet, the air volume adjusting element is provided with an arc-shaped second air hole corresponding to the air inlet, and the air volume adjusting element is provided with a third air hole corresponding to the first air hole, When the air volume adjusting element rotates, the area of the third air hole and the first air hole is aligned to adjust the air volume when the air is discharged, which is the characteristic.

Description

Air volume adjustment device of dust blowing gun

The air volume adjusting device of the dust blowing gun of the present invention is mainly applied to the technology of adjusting the air volume of the dust blowing gun.

According to the traditional air blowing gun, it is mainly used to remove cutting chips, cutting fluid and dust impurities. The compressed air generated by the air compressor is directly discharged from the air gun nozzle for air blowing.

However, the traditional air gun for blowing dust cannot be adjusted in accordance with the actual needs of the user in actual operation and application, for its existing problems and shortcomings that have yet to be overcome.

The inventor is currently engaged in the manufacture and design of related products, and has accumulated many years of practical experience and experience. Aiming at the existing problems and deficiencies of the traditional air gun for blowing dust, the air volume cannot be adjusted, and he actively invests in the spirit of innovation and improvement , The completed dust blowing gun air volume adjustment device.

The technical means used by the invention to solve the problem and the effect compared with the prior art is that the main body is provided with a vertical slot hole between the air inlet and the air outlet, the slot is provided with an elastic element and a valve seat, and the valve seat Equipped with air volume adjustment element, the valve seat corresponds to the air outlet There is a first air hole, the air volume adjusting element is provided with an arc-shaped second air hole corresponding to the air inlet, and the air volume adjusting element is provided with a third air hole corresponding to the first air hole. When the air volume adjusting element rotates , The area of the third air hole and the first air hole is aligned to adjust the air volume when the wind is discharged, which has the effect of enhancing the main purpose.

10‧‧‧Ontology

101‧‧‧Legs

102‧‧‧Key ring

11‧‧‧Air inlet

12‧‧‧Vent

121‧‧‧Socket slot

13‧‧‧Slot

14‧‧‧First through hole

15‧‧‧Second through hole

16‧‧‧Tooth ring

161‧‧‧The first inner step edge

162‧‧‧Second Inner Step Edge

163‧‧‧Aiming Point

164‧‧‧Indicating arc

17‧‧‧Spring Groove

18‧‧‧ring groove

181‧‧‧Positioning Department

19‧‧‧Curved perforation

191‧‧‧Top Reaching Department

20‧‧‧Air inlet connector

21‧‧‧External thread

30‧‧‧Valve seat

31‧‧‧External thread

32‧‧‧Groove

33‧‧‧Groove

34‧‧‧The first axis hole

35‧‧‧First Stoma

36‧‧‧Groove

40‧‧‧Air volume adjustment element

41‧‧‧Flange

42‧‧‧Second Stoma

43‧‧‧Third shaft hole

44‧‧‧Second shaft hole

45‧‧‧Groove

46‧‧‧Groove

47‧‧‧ring groove

48‧‧‧Third Stoma

49‧‧‧Kago

50‧‧‧Switch element

51‧‧‧Positioning column

52‧‧‧Groove

53‧‧‧Groove

54‧‧‧Connector

55‧‧‧Guide slope

56‧‧‧Guide slope

60‧‧‧Air volume adjustment button

61‧‧‧Perforation

62‧‧‧Protrusion

63‧‧‧Concave

64‧‧‧ratchet

65‧‧‧Arrow indicator

70‧‧‧ button

71‧‧‧ Slot

80‧‧‧Gripper ring

81‧‧‧Guide slope

82‧‧‧Gripper

90‧‧‧Knob

100‧‧‧The first nozzle head

101‧‧‧The first fixed part

102‧‧‧The first card slot

200‧‧‧Second nozzle head

201‧‧‧Second fixing part

202‧‧‧Second Card Slot

300‧‧‧The third nozzle head

301‧‧‧The third fixed part

302‧‧‧The third card slot

400‧‧‧The fourth nozzle head

401‧‧‧Fourth fixing part

402‧‧‧The fourth card slot

500‧‧‧Fifth nozzle head

501‧‧‧Fifth fixed part

502‧‧‧Fifth card switch

S‧‧‧Elastic element

A‧‧‧Gap

Q‧‧‧Washer

The first figure: is a three-dimensional exploded schematic view of the nozzle head of the present invention with multiple different functions.

Figure 2: is a schematic diagram of the three-dimensional combination of the present invention.

Figure 3: is a three-dimensional exploded schematic view of the present invention.

Figure 4: is a schematic diagram of the cross-sectional assembly of the present invention.

Figure 5: A schematic diagram of the D-D section of Figure 4.

Figure 6: is the first schematic diagram of the nozzle head replacement of the present invention.

Figure 7: It is the second schematic diagram of the nozzle head replacement of the present invention.

Figure 8: is a schematic diagram of the three-dimensional assembly of the first embodiment of the present invention.

Figure 9: is a schematic diagram of the action of pressing the switch element according to the first embodiment of the present invention.

Figure 10: A schematic diagram of the P-P section of Figure 9.

Figure 11: A schematic diagram of the M-M section of Figure 10.

Figure 12: A schematic diagram of the Y-Y section of Figure 11.

In order to make it easier for people who are specialized and familiar with this technique to understand the structure of the present invention and the functional benefits that can be achieved, a specific embodiment is enumerated with a detailed description of the diagram as follows: A blow gun air volume adjustment Device, please refer to the first picture: this The three-dimensional exploded schematic diagram of the nozzle heads with different functions. As shown in the second and third figures: a schematic diagram of the three-dimensional combination and three-dimensional decomposition of the present invention. And as shown in the fourth and fifth figures: the cross-sectional combination of the present invention and the D-D cross-sectional schematic diagram of the fourth figure. Including: a body 10, an air inlet connector 20, a valve seat 30, an air volume adjustment element 40, a switch element 50, an air volume adjustment button 60, a button 70, a gripper ring 80, and a knob 90; among them: The rear end of the main body 10 is provided with an air inlet 11, the air inlet 11 is made of a copper nut, which is used for locking and fixing an air inlet connector 20. The front end of the main body 10 is provided There is a vent hole 12, the rear end of the vent hole 12 is provided with a hexagonal socket slot 121, which is used to socket the first, second, third, fourth, and fifth nozzle heads with various functions 100, 200, 300, 400, 500, the first, second, third, fourth, and fifth nozzle heads 100, 200, 300, 400, 500 are each provided with a hexagonal first , The second, the third, the fourth, the fifth fixing part 101, 201, 301, 401, 501, the first, the second, the third, the fourth, the fifth nozzle head 100, 200, 300, 400, 500 corresponds to the first, second, third, fourth, and fifth fixing parts 101, 201, 301, 401, 501 with a first, second, third, fourth, and fifth latching groove in the front 102, 202, 302, 402, 502, the body 10 is provided with a vertical slot 13 between the air inlet 11 and the air outlet 12, the bottom of the slot 13 is closed, and the top of the slot 13 penetrates , The slot 13 is provided with a first through hole 14 corresponding to the bottom of the air inlet 11, the slot 13 is provided with a second through hole 15 corresponding to the top of the outlet 12, and above the slot 13 is provided There is a tooth ring 16 made of aluminum, which is used as a lock to fix a For the intake valve seat 30, a first inner step edge 161 and a second inner step edge 162 are arranged concentrically above the tooth ring 16. The inner diameter of the first inner step edge 161 is smaller than the first inner step edge 161 The inner diameter of the second inner step edge 162, the first inner step edge 161 can accommodate the valve seat 30, the second inner step edge 162 can accommodate the air volume adjustment button 60, the body 10 corresponds to the second inner step edge An alignment point 163 is provided at the axial center in front of 162. Two forward and reverse indicating arcs 164 are provided on both sides of the alignment point 163. A spring groove 17 is provided at the center of the bottom of the slot 13 as a receiving device. An elastic element S is used. The elastic element S is a compression spring. A ring groove 18 is provided on the circumference of the bottom of the slot 13 to accommodate an air volume adjustment element 40. The ring groove 18 is provided on the left and right sides. There are two positioning parts 181, which are used for positioning the maximum angle range of the forward and reverse rotation of the air volume adjustment element 40. The body 10 is provided with a lifting lug 101 on the outside of the body 10 for hanging a key ring 102 for easy hanging; One end of the air inlet connector 20 can be connected to a source of compressed air, and the other end of the air inlet connector 20 is provided with an external thread 21 for locking and fixing the screw hole of the air inlet 11 of the main body 10; An external thread 31 is provided on the outside of the valve seat 30, a linear groove 32 is provided on the top surface of the valve seat 30, and a groove 33 is provided on the top of the external thread 31 to accommodate a gasket Q, using coins or The tool locks and fixes the external thread 31 of the valve seat 30 in the tooth ring 16 of the body 10 by the in-line groove 32. The center of the valve seat 30 is provided with a first shaft hole 34 through which the valve seat 30 corresponds A plurality of equally divided first air holes 35 are provided in the radial direction of the first shaft hole 34, and the first air holes 35 are connected to the second through holes of the main body 10 15 is aligned, the outer part under the valve seat 30 is provided with a groove 36 for accommodating a gasket Q; two flanges 41 are provided on both sides under the air volume adjusting element 40, which serve as a ring positioned on the body 10. In the groove 18, when the air volume adjustment element 40 rotates forward or reverse, the two flanges 41 are positioned on the two positioning portions 181 of the main body 10 as the maximum angle range for positioning the air volume adjustment element 40 in the forward or reverse direction. A second shaft hole 44 and a third shaft hole 43 are coaxially provided at the upper and lower parts of the center of the air volume adjustment element 40. The inner diameter of the upper second shaft hole 44 is smaller than the inner diameter of the lower third shaft hole 43 The air volume adjusting element 40 is provided with a second air hole 42 penetrating in an arc shape corresponding to the third shaft hole 43 in the radial direction. The second air hole 42 is aligned with the first through hole 14 of the main body 10, and the The arc diameter of the second air hole 42 covers the maximum angle range that the air volume adjustment element 40 coincides with the first through hole 14 when the air volume adjustment element 40 rotates. The air volume adjustment element 40 corresponds to the upper and lower positions of the first air hole 35 of the valve seat 30. There are two grooves 46, 45 for accommodating the upper and lower gaskets Q. The air volume adjusting element 40 is provided with a ring groove 47 corresponding to the first air hole 35 of the valve seat 30. The two sides of the ring groove 47 Two third air holes 48 are provided. The third air holes 48 are aligned with the first air holes 35 of the valve seat 30. The top of the air volume adjustment element 40 is provided with a plurality of equally divided hooks 49, which are used for engaging in the air volume adjustment Button 60 is used; the center of the bottom of the switch element 50 is provided with a positioning column 51, as the elastic element S to abut, the switch element 50 is provided with two grooves 53, 52 at the upper and lower positions, as accommodating The upper and lower washers Q are used. Usually, the elastic force of the elastic element S is used to eject the switch element 50 outward, and the air volume is sealed by the lower washer Q The adjusting element 40 flows from the lower third shaft hole 43 to the compressed air of the upper second shaft hole 44. The upper part of the switch element 50 is provided with a post 54 which is used for socketing a button 70. The switch element 50 corresponds to the two grooves 52, 53 at the top and bottom with two guiding inclined surfaces 55, 56. The outer diameter of the switch element 50 is slightly smaller than the inner diameter of the second shaft hole 44 of the air volume adjusting element 40, thereby forming a gap A , So that compressed air can take this gap A from the third shaft hole 43 below the air volume adjustment element 40 to the second shaft hole 44 above; the air volume adjustment button 60 is disposed in the second inner step edge 162 of the body 10 , The center of the air volume adjustment button 60 is provided with a perforation 61, the inner wall of the perforation 61 is provided with a plurality of equally divided convex portions 62, and a plurality of concave portions 63 are arranged between the plurality of convex portions 62, so that the air volume adjustment element The plurality of hooks 49 of 40 pass through the concave portion 63 first, and then rotate and engage with the plurality of convex portions 62. The air volume adjustment button 60 is provided with a plurality of ratchet teeth 64 on the circumference. The top surface of the air volume adjustment button 60 An arrow indicator 65 is provided at the alignment point 163 of the main body 10, and the air volume adjusting button 60 rotates forward or reverse to drive the air volume adjusting element 40 to rotate at a certain angle, so that the third air hole 48 of the air volume adjusting element 40 and the air intake The first air holes 35 of the valve seat 30 are overlapped and completely aligned or staggered and slightly misaligned. The air volume is the largest when it is fully aligned, which is used to adjust the air volume; the center of the bottom of the button 70 is provided with an insertion slot 71 as a switch element 50 The post 54 is used for plugging and fixing; the gripper ring 80 and knob 90 are conventional devices and technologies. For example, the applicant of this case has been approved by the Bureau before the announcement, certificate number: I554332 "Quick replacement of air gun outlet pipe Method" invention patent case, that is, the structure content of the gripper ring 80 and the knob 90 are disclosed in detail. Please refer to Figures 6 and 7: are schematic diagrams 1 and 2 of the nozzle head replacement of the present invention. The main method is to use the knob 90 to rotate the C-shaped non-closed gripper ring 80, so that the C-shaped non-closed gripper ring 80 can use the guiding inclined surface 81 to touch the abutment portion 191 of the arc-shaped perforation 19 and expand outward. The clamping jaw 82 is used to break away from the clamping relationship with the first clamping groove 102 of the first nozzle head 100 to quickly disassemble and assemble the first nozzle head 100. The clamping jaw ring 80 and the knob 90 are not the focus of the patent application in this case. People will not repeat the explanation, so it must be clear first.

The present invention, which is combined with the above-mentioned component structures, provides a device for adjusting the air volume of a dust blowing gun. In practical application: please refer to Figure 8 as shown in Figure 8: a schematic diagram of the three-dimensional combination of the first embodiment of the present invention . As shown in Figure 9: It is a schematic diagram of the action of pressing the switch element according to the first embodiment of the present invention. And as shown in the tenth, eleventh, and twelfth figures: P-P in the ninth figure, M-M in the tenth figure, and Y-Y in the eleventh figure. The user only needs to press the button 70 above the switch element 50, that is, the gasket Q under the switch element 50 can be displaced downward, so that compressed air can enter through the gap A between the switch element 50 and the valve seat 30 , And enter the second shaft hole 44 above from the third shaft hole 43 below the air volume adjustment element 40. At the same time, the air volume adjustment knob 60 is used to rotate forward or reverse to drive the air volume adjustment element 40 to rotate at a certain angle. When the third air hole 48 of the air volume adjustment element 40 overlaps with the first air hole 35 of the intake valve seat 30 and is completely aligned When the air volume is the largest, when the third air hole 48 of the air volume adjusting element 40 and the first air hole 35 of the intake valve seat 30 are staggered and misaligned, the air volume is the smallest, thereby achieving the function of adjusting the air volume.

Based on the foregoing, the present invention provides an air volume adjustment device for a dust blowing gun. After the inventor has actually completed the production and repeated operation tests, it is confirmed that the expected functional benefits of the present invention can indeed be achieved. The unseen first creation has industrial use value. It is true that it complies with the essentials for the establishment of the utility and progress of the invention patent. In accordance with the provisions of the Patent Law, the invention patent application was filed with the Jun Office.

10‧‧‧Ontology

101‧‧‧Legs

11‧‧‧Air inlet

12‧‧‧Vent

121‧‧‧Socket slot

13‧‧‧Slot

14‧‧‧First through hole

15‧‧‧Second through hole

16‧‧‧Tooth ring

161‧‧‧The first inner step edge

162‧‧‧Second Inner Step Edge

163‧‧‧Aiming Point

164‧‧‧Indicating arc

17‧‧‧Spring Groove

18‧‧‧ring groove

181‧‧‧Positioning Department

19‧‧‧Curved perforation

191‧‧‧Top Reaching Department

20‧‧‧Air inlet connector

21‧‧‧External thread

30‧‧‧Valve seat

31‧‧‧External thread

32‧‧‧Groove

33‧‧‧Groove

34‧‧‧The first axis hole

35‧‧‧First Stoma

36‧‧‧Groove

40‧‧‧Air volume adjustment element

41‧‧‧Flange

42‧‧‧Second Stoma

43‧‧‧Third shaft hole

44‧‧‧Second shaft hole

45‧‧‧Groove

46‧‧‧Groove

47‧‧‧ring groove

48‧‧‧Third Stoma

49‧‧‧Kago

50‧‧‧Switch element

51‧‧‧Positioning column

52‧‧‧Groove

53‧‧‧Groove

54‧‧‧Connector

55‧‧‧Guide slope

56‧‧‧Guide slope

60‧‧‧Air volume adjustment button

61‧‧‧Perforation

62‧‧‧Protrusion

63‧‧‧Concave

64‧‧‧ratchet

65‧‧‧Arrow indicator

70‧‧‧ button

80‧‧‧Gripper ring

81‧‧‧Guide slope

82‧‧‧Gripper

90‧‧‧Knob

S‧‧‧Elastic element

Q‧‧‧Washer

Claims (10)

An air volume adjustment device for a dust blowing gun, comprising: a body, a valve seat, an air volume adjustment element, a switch element, an air volume adjustment button and a button; wherein: the front and rear ends of the body are provided with an air outlet and an inlet An air hole, a vertical slot hole is provided in the middle of the body between the air outlet hole and the air inlet hole, and a first through hole is provided below the slot hole corresponding to the air inlet hole, the slot hole Corresponding to the upper part of the vent hole is provided with a second through hole, the upper part of the slot is provided with a tooth ring, the center of the bottom of the slot is provided with a spring groove, which is used to accommodate an elastic element; the valve seat An external thread is provided on the outside of the valve seat to lock and fix the valve seat in the tooth ring of the body. The center of the valve seat is provided with a first shaft hole, and the valve seat corresponds to the radial position of the first shaft hole A plurality of equally divided first air holes are provided, and the first air holes are aligned with the second through holes of the body; the center of the air volume adjusting element is coaxially provided with a second shaft hole with a small upper inner diameter and a lower inner diameter. A third shaft hole with a large diameter, the air volume adjusting element is provided with an arc-shaped second air hole in the radial direction corresponding to the third shaft hole, and the second air hole is aligned with the first through hole of the body, At the same time, the arc diameter of the second air hole covers the maximum angle range that the air volume adjusting element coincides with the first through hole when the air volume adjusting element rotates. The air volume adjusting element is provided with a ring groove corresponding to the first air hole of the valve seat. The ring groove is provided with a third air hole, the third air hole is aligned with the first air hole of the valve seat, and the top of the air volume adjusting element is provided with an air volume adjusting button; the outer diameter of the switch element is smaller than that of the air volume adjusting element The inner diameter of the second shaft hole forms a gap, and the bottom of the switch element is pressed by the elastic element to close the air volume adjustment element The third shaft hole leads to the passage between the second shaft hole, and a button is sleeved on the upper part of the switch element; the air volume adjusting button is installed on the top of the switching element, and rotating the air volume adjusting button drives the The air volume adjustment element rotates at a certain angle, and the third air hole of the air volume adjustment element is aligned with the first air hole of the valve seat to adjust the size of the air volume; the button is installed on the top of the switch element and presses Pressing the button causes the switch element to compress the elastic element downward, opening the passage of the air volume adjustment element from the third shaft hole to the second shaft hole. The device for adjusting air volume of a dust blowing gun according to claim 1, wherein: the body is provided with a first inner step edge and a second inner step edge arranged in concentric circles above the tooth ring of the slot, the The inner diameter of the first inner step edge is smaller than the inner diameter of the second inner step edge, the first inner step edge can accommodate the valve seat, and the second inner step edge can accommodate the air volume adjusting button. The device for adjusting air volume of a dust blowing gun according to claim 1, wherein: the front of the body corresponds to the center of the air volume adjusting button is provided with an alignment point, and two sides of the alignment point are provided with two forward and reverse indicating arcs , The top surface of the air volume adjustment button corresponds to the alignment point of the body with an arrow indicator. The device for adjusting air volume of a dust blowing gun according to claim 1, wherein: the body is provided with a ring groove at the circumference of the bottom of the slot, two positioning parts are provided on the left and right sides of the ring groove, and the air volume adjustment element Two flanges are provided on both sides to be positioned in the ring groove of the body. When the air volume adjusting element rotates forward or reverse, the two flanges are positioned on the two positioning portions of the body as positioning the It is used for the maximum angle range of the forward or reverse rotation of the air volume adjustment element. The device for adjusting the air volume of a dust blowing gun according to claim 1, wherein: the top surface of the valve seat is provided with a linear groove. The device for adjusting the air volume of a dust blowing gun according to claim 1, wherein: a positioning post is provided at the center of the bottom of the switch element, which serves as a support for the elastic element. The device for adjusting air volume of a dust blowing gun according to claim 1, wherein: the air volume adjusting button is provided with a plurality of ratchet teeth on the circumference. The device for adjusting the air volume of a dust blowing gun according to claim 1, wherein: the center of the bottom of the button is provided with an insertion slot, and the top of the switch element is provided with a post to insert the insertion slot fixed to the button In the middle. The air volume adjustment device of the dust blowing gun according to claim 1, wherein: the top of the air volume adjustment element is provided with a plurality of equally divided hooks, the center of the air volume adjustment button is provided with a perforation, and the inner wall of the perforation is provided with a plurality of hooks. A plurality of equally divided convex portions, a plurality of concave portions are arranged between the plurality of convex portions, and the plurality of hooks of the air volume adjusting element pass through the concave portion first, and then rotate and engage with the plurality of convex portions . The device for adjusting the air volume of a dust blowing gun according to claim 1, wherein: a lifting lug is provided on the outside of the main body to be used for hanging a key ring.

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