Spray gun width adjusting structure

Abstract

The invention discloses a spray gun width adjusting structure, and relates to the technical field of spray gun accessories. Comprising a width adjusting mechanism, the width adjusting mechanism is arranged in a spray gun main body, and the width adjusting mechanism comprises a width adjusting rotating seat, a width adjusting fixing seat, a spraying plate and a width adjusting knob. The width adjusting rotary base can be driven to rotate by rotating the width adjusting knob at the top of the spray gun body and meshing of the gear and the shifting teeth, the spraying width range is adjusted, spraying pollution is avoided in the process, meshing precision of the gear and the shifting teeth is high, adjustment of the spraying width range is more easily and finely controlled, and the use requirement of a user is met; the limiting groove is arranged and used in cooperation with the limiting block and used for limiting the rotating angle of the width adjusting rotating seat, so that the spraying width can be just adjusted from the maximum to the minimum or from the minimum to the maximum in the rotating range of the width adjusting rotating seat, redundant rotation is avoided, and operation is more convenient and faster.

Description

Technical Field

[0001] The invention relates to the technical field of spray gun accessories, in particular to a spray gun width adjustment structure. Background Art

[0002] A spray gun is a device that uses liquid or compressed air to quickly release as power. There are two types of spray guns: general pressure type and pressurized type. There are also pressure spray guns, Carle spray guns, automatic recovery spray guns, etc.

[0003] When the spray width of existing spray guns on the market is adjusted, the user's hands are easily contaminated by the spray, which causes serious trouble to the user and the use effect is not ideal. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spray gun width adjustment structure, comprising a width adjustment mechanism, the width adjustment mechanism is arranged inside the spray gun body, the width adjustment mechanism comprises a width adjustment rotating seat, a width adjustment fixed seat, a spray plate and a width adjustment knob, the width adjustment rotating seat is provided with a plurality of width adjustment holes 1 distributed in an annular shape inside, the width adjustment fixed seat is located on one side of the width adjustment rotating seat, the width adjustment fixed seat is provided with width adjustment holes 2 which are the same in number and correspond one to one with the width adjustment holes 1, the spray plate is located on one side of the width adjustment fixed seat, and one side of the spray plate is provided with width adjustment exhaust holes which are connected with the width adjustment holes 2 and the number of which is not less than one;

[0005] The width adjustment knob is rotatably arranged inside the spray gun body, a gear is arranged at the bottom of the width adjustment knob, and at least one group of shifting teeth meshing with the gear is arranged on the side of the width adjustment rotating seat away from the width adjustment fixed seat, so that when the width adjustment knob is rotated, the width adjustment knob drives the width adjustment rotating seat to rotate, thereby adjusting the offset range of the width adjustment hole 1 relative to the width adjustment hole 2.

[0006] As a preferred technical solution of the present invention, an air inlet is fixedly arranged inside the width adjustment rotating seat, a spray head and an air outlet located on the outer circle of the spray head are arranged inside the width adjustment fixed seat, and the air outlet is connected to the air inlet.

[0007] As a preferred technical solution of the present invention, the second width adjustment hole is located outside the air outlet, and a sealing cavity is provided between two adjacent second width adjustment holes.

[0008] As a preferred technical solution of the present invention, one end of the spray head away from the width adjustment fixing seat extends to the inside of the spray plate, two width adjustment seats are symmetrically arranged on one side of the spray plate, and the width adjustment exhaust hole is arranged inside the width adjustment seat.

[0009] As a preferred technical solution of the present invention, a circle of air inlet cavity is arranged on one side of the spray plate away from the width adjustment seat, a plurality of the width adjustment holes 2 are connected to the air inlet cavity, and the width adjustment exhaust hole is connected to the width adjustment hole 2 through the air inlet cavity.

[0010] As a preferred technical solution of the present invention, two limiting grooves are symmetrically arranged on the surface of the width adjustment rotating seat, and two limiting blocks which are movably engaged with the two limiting grooves are arranged inside the threaded head at one end of the spray gun body.

[0011] As a preferred technical solution of the present invention, the top of the width adjustment knob extends to the top of the spray gun body, and a circle of anti-slip protrusions is provided on the top of the width adjustment knob.

[0012] As a preferred technical solution of the present invention, a conveying chamber is provided inside the spray gun body, an adjusting rod is provided inside the conveying chamber, one end of the adjusting rod extends to the inside of the spray head, and a water suction pipe connected to the conveying chamber is also provided inside the spray gun body.

[0013] As a preferred technical solution of the present invention, the width adjustment fixing seat is arranged at one end of the threaded head, the external thread of the threaded head is sleeved with a threaded cover for pressing the width adjustment fixing seat and the spray plate, and a threaded seat is arranged at the bottom of the spray gun body, and the internal thread of the threaded seat is sleeved with a material barrel connected to the water suction pipe.

[0014] As a preferred technical solution of the present invention, the end of the spray gun body away from the threaded head is movably connected to the main unit, a handle is provided at the bottom of the main unit, a power cord is provided at the bottom of the handle, and a spray gun switch for driving the adjustment rod is also provided on the spray gun body.

[0015] Compared with the prior art, the present invention provides a spray gun width adjustment structure, which has the following beneficial effects:

[0016] The spray gun width adjustment structure can adjust the spray width range by rotating the width adjustment knob on the top of the spray gun body and driving the width adjustment rotating seat to rotate through the meshing of the gear and the shifting teeth. The spray width range will not be contaminated by the spray during the process, and the meshing accuracy of the gear and the shifting teeth is high. The spray width range adjustment is easier to be finely controlled to meet the user's use needs. The setting of the limit groove and the use of the limit block are used to limit the rotation angle of the width adjustment rotating seat, so that the rotation range of the width adjustment rotating seat can just adjust the spray width from maximum to minimum, or from minimum to maximum, without unnecessary rotation, and the operation is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a spray gun width adjustment structure proposed by the present invention;

[0018] Figure 2 An exploded diagram of the width adjustment mechanism of a spray gun width adjustment structure proposed by the present invention;

[0019] Figure 3 An exploded diagram of the width adjustment mechanism of a spray gun width adjustment structure proposed by the present invention;

[0020] Figure 4 A schematic diagram of the width adjustment rotating seat and the width adjustment fixed seat structure of a spray gun width adjustment structure proposed by the present invention;

[0021] Figure 5 A side view of a width adjustment rotating seat and a width adjustment fixed seat structure of a spray gun width adjustment structure proposed by the present invention;

[0022] Figure 6 A cross-sectional view of the width adjustment mechanism structure of a spray gun width adjustment structure proposed by the present invention;

[0023] Figure 7 A cross-sectional view of the width adjustment mechanism structure of a spray gun width adjustment structure proposed by the present invention;

[0024] Figure 8 This is a cross-sectional view of the main structure of a spray gun with a spray gun width adjustment structure proposed by the present invention.

[0025] In the figure: 1. width adjustment mechanism; 11. width adjustment rotating seat; 111. air inlet; 112. width adjustment hole 1; 113. shifting tooth; 114. limiting groove; 12. width adjustment fixing seat; 121. spray head; 122. air outlet; 123. width adjustment hole 2; 124. sealing chamber; 13. spray plate; 131. width adjustment seat; 132. width adjustment exhaust hole; 133. air inlet chamber; 14. width adjustment knob; 141. gear; 142. anti-slip protrusion; 2. spray gun body; 21. threaded head; 22. limiting block; 23. threaded cover; 24. main machine; 25. handle; 251. power cord; 26. threaded seat; 27. barrel; 28. spray gun switch; 29. ​​delivery chamber; 291. adjustment rod; 292. water suction pipe. DETAILED DESCRIPTION

[0026] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0027] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0028] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0029] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0030] Unless otherwise stated, the term "plurality" means two or more.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0032] See also Figure 1-8A spray gun width adjustment structure comprises a width adjustment mechanism 1, wherein the width adjustment mechanism 1 is arranged inside a spray gun body 2, the width adjustment mechanism 1 comprises a width adjustment rotating seat 11, a width adjustment fixed seat 12, a spray plate 13 and a width adjustment knob 14, the width adjustment rotating seat 11 is provided with a plurality of width adjustment holes 112 distributed in an annular shape inside, the width adjustment fixed seat 12 is located on one side of the width adjustment rotating seat 11, the width adjustment fixed seat 12 is provided with width adjustment holes 123 which are the same in number and correspond one to one with the width adjustment holes 112, the spray plate 13 is located on one side of the width adjustment fixed seat 12, and one side of the spray plate 13 is provided with width adjustment exhaust holes 132 which are connected with the width adjustment holes 123 and the number of which is not less than one.

[0033] The width adjustment knob 14 is rotatably arranged inside the spray gun body 2, and a gear 141 is arranged at the bottom of the width adjustment knob 14. At least one group of shifting teeth 113 meshing with the gear 141 is arranged on the side of the width adjustment rotating seat 11 away from the width adjustment fixed seat 12, so that when the width adjustment knob 14 is rotated, the width adjustment knob 14 drives the width adjustment rotating seat 11 to rotate, so as to adjust the offset range of the width adjustment hole 112 relative to the width adjustment hole 2 123.

[0034] As a specific technical solution of this embodiment, an air inlet 111 is fixedly provided inside the width adjustment rotating seat 11, and a spray head 121 and an air outlet 122 located on the outer circle of the spray head 121 are provided inside the width adjustment fixed seat 12, and the air outlet 122 is connected to the air inlet 111.

[0035] In this embodiment, the gas blown out from the main unit 24 at one end of the spray gun body 2 enters the interior of the spray head 121 through the air inlet 111 and the air outlet 122. The air channel formed by the air inlet 111 and the air outlet 122 is used to break up the liquid sprayed from the spray head 121 into a mist and then spray it out, thereby realizing the atomization of the liquid and improving the spraying effect.

[0036] As a specific technical solution of this embodiment, the second width adjustment hole 123 is located outside the air outlet 122 , and a sealing cavity 124 is provided between two adjacent second width adjustment holes 123 .

[0037] In the present embodiment, the sealing cavity 124 blocks the space between two adjacent wide-width adjustment holes 123, thereby avoiding air leakage, improving the sealing between the wide-width adjustment hole 123 and the air outlet 122, and preventing the air in the adjustment hole 123 and the air outlet 122 from flowing into each other, thereby improving the spray effect and the wide-width adjustment effect and stability.

[0038] As a specific technical solution of this embodiment, the spray head 121 extends from one end of the width adjustment fixing seat 12 to the inside of the spray plate 13, and two width adjustment seats 131 are symmetrically arranged on one side of the spray plate 13, and the width adjustment exhaust hole 132 is arranged inside the width adjustment seat 131.

[0039] In this embodiment, the width adjustment exhaust hole 132 inside the width adjustment seat 131 discharges air to adjust the width of the sprayed liquid. When the width adjustment hole 112 and the width adjustment hole 2 123 are completely overlapped with each other, the air inlet space is the largest and the air inlet volume is the largest. The air inside the spray gun body 2 directly enters the air inlet cavity 133 and the interior of the width adjustment exhaust hole 132 through the width adjustment hole 112 and the width adjustment hole 2 123, and is finally discharged through the width adjustment exhaust hole 132 to adjust the width range of the spray to the maximum. Conversely, when the width adjustment knob 14 is turned to slowly rotate the width adjustment hole 112 to stagger it with the width adjustment hole 2 123 until it does not overlap, the air inlet space gradually becomes smaller and the air inlet volume gradually decreases, so that the air volume discharged from the width adjustment exhaust hole 132 gradually decreases, and the spray width range changes from the maximum to the minimum. After the user adjusts to the appropriate spray width range, the width adjustment knob 14 can be stopped.

[0040] As a specific technical solution of this embodiment, a circle of air inlet cavity 133 is provided on one side of the spray plate 13 away from the width adjustment seat 131, and several of the width adjustment holes 123 are connected to the air inlet cavity 133, and the width adjustment exhaust hole 132 is connected to the width adjustment hole 123 through the air inlet cavity 133.

[0041] In this embodiment, the air inlet cavity 133 is connected to a plurality of wide-width adjustment holes 123, thereby ensuring the air intake of the wide-width adjustment exhaust hole 132. The air inlet cavity 133 is not connected to the air outlet hole 122, and the sealing performance is better.

[0042] As a specific technical solution of this embodiment, two limit grooves 114 are symmetrically arranged on the surface of the width adjustment rotating seat 11, and two limit blocks 22 which are movably engaged with the two limit grooves 114 are arranged inside the threaded head 21 at one end of the spray gun body 2.

[0043] In this embodiment, the setting of the limit groove 114 is used in conjunction with the limit block 22 to limit the rotation angle of the width adjustment rotating seat 11, so that the rotation range of the width adjustment rotating seat 11 can just adjust the spray width from maximum to minimum, or from minimum to maximum, without unnecessary rotation, and the operation is more convenient and quick.

[0044] As a specific technical solution of this embodiment, the top of the width adjustment knob 14 extends to the top of the spray gun body 2 , and a circle of anti-slip protrusions 142 is provided on the top of the width adjustment knob 14 .

[0045] In this embodiment, the provision of the anti-skid protrusion 142 reduces slipping when turning the width adjustment knob 14, making the operation more convenient and preventing the user from slipping when turning the width adjustment knob 14 after the user's hands are wet.

[0046] As a specific technical solution of this embodiment, a conveying chamber 29 is provided inside the spray gun body 2, and an adjusting rod 291 is provided inside the conveying chamber 29, one end of the adjusting rod 291 extends to the inside of the spray head 121, and a water suction pipe 292 connected to the conveying chamber 29 is also provided inside the spray gun body 2, and a main unit 24 is movably connected to the end of the spray gun body 2 away from the threaded head 21, and a handle 25 is provided at the bottom of the main unit 24, and a power cord 251 is provided at the bottom of the handle 25. A spray gun switch 28 for driving the adjusting rod 291 is also provided on the spray gun body 2, and the width adjustment fixing seat 12 is provided at one end of the threaded head 21, and the external thread of the threaded head 21 is sleeved with a threaded cover 23 for pressing the width adjustment fixing seat 12 and the spray plate 13, and a threaded seat 26 is provided at the bottom of the spray gun body 2, and the internal thread of the threaded seat 26 is sleeved with a barrel 27 connected to the water suction pipe 292.

[0047] In this embodiment, the material barrel 27 is used to hold liquids such as paint or disinfectant. The main unit 24, the spray gun body 2 and the material barrel 27 constitute a complete spray gun. The main unit 24 can be started by the spray gun switch 28, and the adjusting rod 291 can be driven to adjust the liquid spraying amount. The material barrel 27 and the threaded seat 26 are threadedly connected, which is more convenient for disassembly and assembly. The main unit 24 can be powered by connecting the mains power through the power cord 251. After the threaded cover 23 is rotated and removed, the width adjustment rotating seat 11, the width adjustment fixed seat 12 and the spray plate 13 can be removed. The width adjustment fixed seat 12 cannot be rotated after assembly, and the spray plate 13 can be rotated. The setting of the air inlet cavity 133 allows the spray plate 13 to rotate and the multiple width adjustment holes 123 can be connected to the width adjustment exhaust hole 132.

[0048] During use, when the width adjustment hole 112 and the width adjustment hole 2 123 are completely overlapped with each other, the air inlet space is the largest and the air inlet volume is the largest. The main unit 24 is started, and the air inside the spray gun body 2 directly enters the air inlet cavity 133 and the interior of the width adjustment exhaust hole 132 through the width adjustment hole 112 and the width adjustment hole 2 123, and is finally discharged through the width adjustment exhaust hole 132 to adjust the width range of the spray to the maximum. Conversely, the width adjustment knob 14 is turned to slowly rotate the width adjustment hole 112 to stagger it with the width adjustment hole 2 123 until it does not overlap, the air inlet space gradually becomes smaller, and the air inlet volume also gradually decreases, so that the air volume discharged from the width adjustment exhaust hole 132 gradually decreases, and the spray width range changes from the maximum to the minimum. After the user adjusts to the appropriate spray width range, the width adjustment knob 14 can be stopped.

[0049] To sum up, the width adjustment structure of the spray gun can drive the width adjustment rotating seat 11 to rotate by rotating the width adjustment knob 14 on the top of the spray gun body 2 through the engagement of the gear 141 and the shift tooth 113, so as to adjust the spray width range. The process will not be contaminated by the spray, and the engagement accuracy of the gear 141 and the shift tooth 113 is high, and the spray width range adjustment is easier to be finely controlled to meet the user's use needs. The setting of the limit groove 114 is used in conjunction with the limit block 22 to limit the rotation angle of the width adjustment rotating seat 11, so that the rotation range of the width adjustment rotating seat 11 can just adjust the spray width from maximum to minimum, or from minimum to maximum, without unnecessary rotation, and the operation is more convenient and quick.

[0050] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A spray gun width adjustment structure, comprising a width adjustment mechanism (1), characterized in that: The width adjustment mechanism (1) is arranged inside the spray gun body (2), and the width adjustment mechanism (1) comprises a width adjustment rotating seat (11), a width adjustment fixed seat (12), a spray plate (13) and a width adjustment knob (14); a plurality of width adjustment holes (112) distributed in an annular shape are arranged inside the width adjustment rotating seat (11); the width adjustment fixed seat (12) is located on one side of the width adjustment rotating seat (11); the width adjustment fixed seat (12) is arranged inside the width adjustment fixed seat (12) with the same number and one-to-one correspondence as the width adjustment holes (112); the spray plate (13) is located on one side of the width adjustment fixed seat (12); and one side of the spray plate (13) is provided with a width adjustment exhaust hole (132) which is in communication with the width adjustment hole (123) and has a number of not less than one; The width adjustment knob (14) is rotatably arranged inside the spray gun body (2); a gear (141) is arranged at the bottom of the width adjustment knob (14); and at least one group of shifting teeth (113) meshing with the gear (141) is arranged on a side of the width adjustment rotating seat (11) away from the width adjustment fixed seat (12), so that when the width adjustment knob (14) is rotated, the width adjustment knob (14) drives the width adjustment rotating seat (11) to rotate, thereby adjusting the offset range of the width adjustment hole 1 (112) relative to the width adjustment hole 2 (123).

2. A spray gun width adjustment structure according to claim 1, characterized in that: An air inlet (111) is fixedly arranged inside the width-adjusting rotating seat (11), a spray head (121) and an air outlet (122) located on the outer circle of the spray head (121) are arranged inside the width-adjusting fixed seat (12), and the air outlet (122) is communicated with the air inlet (111).

3. The spray gun width adjustment structure according to claim 1, characterized in that: The second width adjustment hole (123) is located outside the air outlet hole (122), and a sealing cavity (124) is provided between two adjacent second width adjustment holes (123).

4. A spray gun width adjustment structure according to claim 2, characterized in that: One end of the spray head (121) away from the width adjustment fixing seat (12) extends to the inside of the spray plate (13); two width adjustment seats (131) are symmetrically arranged on one side of the spray plate (13); and the width adjustment exhaust hole (132) is arranged inside the width adjustment seat (131).

5. The spray gun width adjustment structure according to claim 1, characterized in that: A circle of air inlet cavities (133) is arranged on one side of the spray plate (13) away from the width adjustment seat (131); a plurality of the second width adjustment holes (123) are connected to the air inlet cavities (133); and the width adjustment exhaust holes (132) are connected to the second width adjustment holes (123) via the air inlet cavities (133).

6. The spray gun width adjustment structure according to claim 1, characterized in that: The surface of the width-adjusting rotating seat (11) is symmetrically provided with two limiting grooves (114), and the threaded head (21) at one end of the spray gun body (2) is internally provided with two limiting blocks (22) which are movably engaged with the two limiting grooves (114) respectively.

7. The spray gun width adjustment structure according to claim 1, characterized in that: The top of the width adjustment knob (14) extends to the top of the spray gun body (2), and a circle of anti-slip protrusions (142) is provided on the top of the width adjustment knob (14).

8. The spray gun width adjustment structure according to claim 1, characterized in that: A conveying chamber (29) is arranged inside the spray gun body (2), an adjusting rod (291) is arranged inside the conveying chamber (29), one end of the adjusting rod (291) extends to the inside of the spray head (121), and a water suction pipe (292) connected to the conveying chamber (29) is also arranged inside the spray gun body (2).

9. The spray gun width adjustment structure according to claim 1, characterized in that: The width adjustment fixing seat (12) is arranged at one end of the threaded head (21), and the external thread of the threaded head (21) is sleeved with a threaded cover (23) for pressing the width adjustment fixing seat (12) and the spray plate (13). The bottom of the spray gun body (2) is provided with a threaded seat (26), and the internal thread of the threaded seat (26) is sleeved with a barrel (27) connected to the water suction pipe (292).

10. The spray gun width adjustment structure according to claim 1, characterized in that: A main machine (24) is movably connected to one end of the spray gun body (2) away from the threaded head (21); a handle (25) is provided at the bottom of the main machine (24); a power cord (251) is provided at the bottom of the handle (25); and a spray gun switch (28) for driving an adjustment rod (291) is also provided on the spray gun body (2).

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