CN212349195U - Air flow adjusting structure of paint spraying gun - Google Patents
Air flow adjusting structure of paint spraying gun Download PDFInfo
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- CN212349195U CN212349195U CN202020696205.9U CN202020696205U CN212349195U CN 212349195 U CN212349195 U CN 212349195U CN 202020696205 U CN202020696205 U CN 202020696205U CN 212349195 U CN212349195 U CN 212349195U
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- adjusting
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- seat
- sealing
- mounting hole
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Abstract
The utility model discloses a gas quantity adjusting structure of a paint spraying gun, which comprises a mounting hole arranged in a gas circuit of a valve body, wherein the bottom of the mounting hole is communicated with a gas outlet hole of the gas circuit, the side wall of the mounting hole is communicated with a gas inlet hole of the gas circuit, an adjusting sealing seat made of plastic is fixedly arranged at the bottom of the mounting hole, a two-step hole is arranged at the rear end of the adjusting sealing seat, and the hole diameter of an inner hole section of the two-step hole is smaller than that of an outer hole section; a plurality of communicating holes are formed between the hole wall of the inner hole section and the front end of the adjusting sealing seat; a notch is arranged at the lower part of the hole wall of the outer hole section and is communicated with the air inlet hole; the mouth of the mounting hole is provided with an adjusting seat, an adjusting rod is arranged in the adjusting seat, the front end of the adjusting rod penetrates through the adjusting seat and is connected with a sealing screw, and the rear end of the adjusting rod is connected with an adjusting knob. The utility model relates to a, it adopts axial displacement seal structure to carry out tolerance regulation and close, can realize the dead operation of closing of tolerance completely when closing, has the characteristics that simple structure is practical.
Description
Technical Field
The utility model relates to a spray gun specifically is a structure is adjusted to tolerance of spray gun.
Background
In the air path of the paint spraying gun, air volume adjusting structures for adjusting or closing air inflow are arranged, as shown in fig. 1, which is a schematic diagram of the existing air volume adjusting structure, and includes a mounting hole 2 ' arranged in the air path, the bottom of the mounting hole 2 ' is communicated with an air outlet 11 ' of the air path, the side wall of the mounting hole 2 ' is communicated with an air inlet 12 ' of the air path, an adjusting seal seat 3 ' made of metal material with a front opening is arranged in the mounting hole 2 ', an air guide hole 31 ' is arranged on the side wall of the adjusting seal seat 4 ' at a position corresponding to the air inlet 12 ', and the rear end of the adjusting seal seat 3 ' is connected with an adjusting knob 5 ' through an adjusting rod 4 '. In use, the adjusting knob 5 'is rotated to drive the adjusting sealing seat 3' to synchronously rotate, and thus, the air quantity is adjusted. The maximum air inflow is achieved when the air guide holes 31 'are exactly corresponding to the air path air inlet holes 12', the air quantity is gradually reduced when the air guide holes 31 'are gradually staggered with the air path air inlet holes 12' in the circumferential direction, and the air quantity is closed until the air quantity is completely staggered.
However, in the above structure, since the valve body 1 ' provided with the air passage inlet hole 12 ' is made of metal, and the adjusting seal seat 3 ' is also made of metal, the contact sealing performance between the two metal parts is not good, which causes that the air flow cannot be completely cut off even if the air guide hole 31 ' is completely staggered with the air passage inlet hole 12 ', and the air flow cannot be completely closed, which brings great troubles to practical use.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses a structure is adjusted to tolerance of spray gun, it carries out the improved design to current structure, adopts axial displacement seal structure to carry out tolerance regulation and close, can realize totally shutting of tolerance when closing and die the operation, has the characteristics that simple structure is practical.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a structure is adjusted to tolerance of spray gun, is including setting up the mounting hole in the valve body gas circuit, the bottom of mounting hole and the venthole intercommunication of gas circuit, the lateral wall of mounting hole and the inlet port intercommunication of gas circuit, its characterized in that: the bottom of the mounting hole is fixedly provided with an adjusting sealing seat made of plastic, the rear end of the adjusting sealing seat is provided with two step holes, and the hole diameters of inner hole sections of the two step holes are smaller than those of outer hole sections; a plurality of communicating holes are formed between the hole wall of the inner hole section and the front end of the adjusting sealing seat; a notch is arranged at the lower part of the hole wall of the outer hole section and is communicated with the air inlet hole; the mouth part of the mounting hole is provided with an adjusting seat, the adjusting seat is internally connected with an adjusting rod through threads, the front end of the adjusting rod penetrates through the adjusting seat and is connected with a sealing screw, the rear end of the adjusting rod is connected with an adjusting knob, the adjusting knob can be rotated to drive the adjusting rod and the sealing screw to move synchronously along the axial direction, and the inward movement of the sealing screw can reduce the gap between the top end surface of the sealing screw and the mouth part of the inner hole section until the gap is completely cut off.
More specifically, the top end surface of the sealing screw is set to be a spherical surface, and a straight chamfer or a concave arc chamfer is arranged at the opening part of the inner hole section of the adjusting sealing seat.
More specifically, the tail part of the adjusting knob is provided with a knob scale block, and the outer end face of the knob scale block is provided with an air volume adjusting scale; the knob scale block is fixedly connected with the adjusting knob and the adjusting rod into an integral structure through screws.
More specifically, a sealing ring is arranged at the connecting part of the adjusting rod and the adjusting seat.
More specifically, a sealing gasket is arranged at the connecting part of the adjusting seat and the mounting hole.
The utility model discloses in use drives through adjust knob's rotation and adjusts pole and sealing screw along axial synchronous motion, and sealing screw's inside and outside removal can change the clearance between its top face and the hole section oral area. When the sealing screw moves outwards, the time gap is increased, and the corresponding air quantity is increased; when the sealing screw moves inwards, the gap is reduced, and the corresponding air quantity is reduced; when the sealing screw moves inwards and the top end surface of the sealing screw completely props against the opening of the inner hole section, the air quantity is completely eliminated, and at the moment, the air quantity is closed.
Herein, because of adjusting the seal receptacle for the plastics material and sealing screw is the metal material, wherein the regulation seal receptacle of plastics material has fine elastic moulding performance, can produce certain deformation on the contact surface when it is connected with sealing screw counterbalance, and then effectively promote connection leakproofness between them, guarantee the operation of dying of closing of tolerance.
Drawings
Fig. 1 is a sectional view of an air volume adjusting structure of a conventional paint spray gun.
FIG. 2 is a structural sectional view of the present invention;
FIG. 3 is an exploded perspective view of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the adjustable sealing seat of the present invention.
Detailed Description
As shown in fig. 2-4, an air volume adjusting structure of a paint spray gun comprises a mounting hole 2 arranged in an air path of a valve body 1, the bottom of the mounting hole 2 is communicated with an air outlet 11 of the air path, and the side wall of the mounting hole 2 is communicated with an air inlet 12 of the air path.
The bottom of mounting hole 2 is fixed and is being set up the regulation seal receptacle 3 of plastics material, and the rear end of adjusting seal receptacle 3 is equipped with two step holes, and the hole diameter of the hole section 31 of two step holes is lighter than outer hole section 32 aperture.
A plurality of communicating holes 311 are arranged between the hole wall of the inner hole section 31 and the front end 33 of the adjusting seal seat, and the communicating holes 311 are used for communicating with the air outlet holes 11 of the air path.
The lower part of the hole wall of the outer hole section 32 is provided with a notch 321 communicated with the air inlet hole 12.
The mouth part of the mounting hole 2 is provided with an adjusting seat 4, the adjusting seat 4 is internally in threaded connection with an adjusting rod 5, the front end of the adjusting rod 5 penetrates through the adjusting seat 4 and is connected with a sealing screw 6, the rear end of the adjusting rod 5 is connected with an adjusting knob 7, the adjusting knob 7 rotates to drive the adjusting rod 5 and the sealing screw 6 to rotate relative to the adjusting seat 4 and simultaneously move synchronously along the axial direction, and the axial inward movement of the sealing screw 6 can reduce the gap between the top end surface 61 and the mouth part of the inner hole section 31 until the gap is completely cut off.
In use, the adjusting rod 5 and the sealing screw 6 are driven to synchronously move along the axial direction by the rotation of the adjusting knob 7, and the gap between the top end surface 61 and the opening part of the inner hole section 31 can be changed by the inward and outward movement of the sealing screw 6. When the sealing screw 6 moves outwards, the time gap is increased, and the corresponding air quantity is increased; when the sealing screw 6 moves inwards, the time gap is reduced, and the corresponding air quantity is reduced; when the sealing screw 6 is moved inward until its tip end face 61 is completely pressed against the mouth of the bore section 31, the gap is completely eliminated, and the air flow is closed.
Here, because of adjusting seal receptacle 3 and sealing screw 6 for the metal material for the plastics material, wherein the regulation seal receptacle 3 of plastics material has fine elastic moulding performance, can produce certain deformation on the contact surface when it offsets with sealing screw 6 and be connected, and then effectively promote the connection leakproofness between them, guarantee the operation of dying of closing of tolerance.
Here, in order to further improve the air tightness when the sealing screw 6 and the mouth of the inner hole section 31 are abutted, the top end surface 61 of the sealing screw 6 is set to be a spherical surface, and meanwhile, the mouth 313 of the inner hole section 31 is provided with a straight chamfer or an inward-concave arc chamfer, and the spherical surface is combined with the structure of the straight chamfer or the arc chamfer, so that the contact surface abutted between the two can be increased by times, and the air tightness is improved.
Here, for convenient condition observation, 7 afterbody of adjust knob is equipped with knob scale block 8, is provided with the tolerance on the outer terminal surface of knob scale block 8 and adjusts the scale, knob scale block 8 links firmly as an organic whole structure through screw 9 with adjust knob 7, regulation pole 5. In use, the user holds the adjustment size of the air volume through the rotation angle of the air volume adjustment scale on the knob scale block 8, and the air volume adjustment device has the characteristics of visual display and simple and convenient operation.
In addition, in order to ensure the air tightness of the adjusting seat 4 and the adjusting rod 5, a sealing ring 41 is arranged at the connecting part of the adjusting rod 5 and the adjusting seat 4, and a sealing gasket 42 is arranged at the connecting part of the adjusting seat 4 and the opening part of the mounting hole 2.
The above, it is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical principles of the present invention to any simple modification, equivalent change or decoration of the above embodiments, still belong to the technical solution of the present invention.
Claims (5)
1. The utility model provides a structure is adjusted to tolerance of spray gun, is including setting up the mounting hole in the valve body gas circuit, the bottom of mounting hole and the venthole intercommunication of gas circuit, the lateral wall of mounting hole and the inlet port intercommunication of gas circuit, its characterized in that: the bottom of the mounting hole is fixedly provided with an adjusting sealing seat made of plastic, the rear end of the adjusting sealing seat is provided with two step holes, and the hole diameters of inner hole sections of the two step holes are smaller than those of outer hole sections; a plurality of communicating holes are formed between the hole wall of the inner hole section and the front end of the adjusting sealing seat; a notch is arranged at the lower part of the hole wall of the outer hole section and is communicated with the air inlet hole; the mouth part of the mounting hole is provided with an adjusting seat, an adjusting rod is arranged in the adjusting seat, the front end of the adjusting rod penetrates through the adjusting seat and is connected with a sealing screw, the rear end of the adjusting rod is connected with an adjusting knob, the adjusting knob can be rotated to drive the adjusting rod and the sealing screw to move synchronously along the axial direction, and the inward movement of the sealing screw can reduce the gap between the top end surface of the sealing screw and the mouth part of the inner hole section until the sealing screw is completely stopped.
2. The air volume adjusting structure of a paint spray gun as claimed in claim 1, wherein: the top end face of the sealing screw is set to be a spherical surface, and a straight chamfer or an inward-concave arc chamfer is arranged at the opening part of the inner hole section of the adjusting sealing seat.
3. The air volume adjusting structure of a paint spray gun as claimed in claim 1, wherein: the tail part of the adjusting knob is provided with a knob scale block, and the outer end face of the knob scale block is provided with a gas quantity adjusting scale; the knob scale block is fixedly connected with the adjusting knob and the adjusting rod into an integral structure through screws.
4. A gas amount adjusting structure of a paint spray gun as claimed in any one of claims 1 to 3, wherein: and a sealing ring is arranged at the connecting part of the adjusting rod and the adjusting seat.
5. A gas amount adjusting structure of a paint spray gun as claimed in any one of claims 1 to 3, wherein: and a sealing gasket is arranged at the connecting part of the adjusting seat and the opening part of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020696205.9U CN212349195U (en) | 2020-04-29 | 2020-04-29 | Air flow adjusting structure of paint spraying gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020696205.9U CN212349195U (en) | 2020-04-29 | 2020-04-29 | Air flow adjusting structure of paint spraying gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212349195U true CN212349195U (en) | 2021-01-15 |
Family
ID=74134849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020696205.9U Active CN212349195U (en) | 2020-04-29 | 2020-04-29 | Air flow adjusting structure of paint spraying gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212349195U (en) |
-
2020
- 2020-04-29 CN CN202020696205.9U patent/CN212349195U/en active Active
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