CN113457872A

CN113457872A - Spray gun with excellent spraying effect

Info

Publication number: CN113457872A
Application number: CN202111022328.XA
Authority: CN
Inventors: 徐子杰
Original assignee: Jiangsu Hokia Pneumatic Tools Co ltd
Current assignee: Jiangsu Hokia Pneumatic Tools Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-10-01
Anticipated expiration: 2041-09-01
Also published as: CN113457872B

Abstract

The invention discloses a spray gun with excellent spraying effect, which comprises a spray head mechanism and a paint bucket, and further comprises a base for mounting a motor, an extrusion mechanism for sucking paint and spraying the paint, and a power mechanism for providing power for the extrusion mechanism, wherein a worm capable of freely rotating along with the output end of the motor is mounted on the base, a worm wheel capable of freely rotating is arranged in the power mechanism, the worm wheel and the worm are mutually matched, a mandrel is arranged on the axis of the worm wheel, the mandrel is inserted into a steering part, the steering part comprises a sliding rod, when the motor rotates, the sliding rod can linearly reciprocate under the action of the worm and the worm wheel, and one end of the extrusion mechanism is in contact with the sliding rod. In the implementation process of the invention, the spraying effect is better, the weight is light, and the power is not required to be provided by an air cylinder.

Description

Spray gun with excellent spraying effect

Technical Field

The invention belongs to the technical field of spray guns, and particularly relates to a spray gun with an excellent spraying effect.

Background

The spray gun is a spraying device for spraying liquid paint on a workpiece, and when the spray gun is used, the spray gun is provided with a power mechanism, a paint mechanism and a spraying mechanism, wherein the power mechanism sucks the paint in the paint mechanism and sprays the paint through the spraying mechanism.

The existing spray guns on the market are roughly divided into two forms, the first form is pneumatic, namely, the air cylinder provides power to suck the paint and spray the paint, but the pneumatic spray gun has the following defects that firstly, the air cylinder needs to be externally connected, the weight is large, the use is inconvenient, and secondly, the spraying effect of the pneumatic spray gun is poor; the second is electric, and the electric spray gun has good spraying effect but is expensive.

Therefore, the application provides a spray gun with excellent spraying effect.

Disclosure of Invention

Aiming at the situation, the invention provides the spray gun with excellent spraying effect to overcome the defects of poor spraying effect, heavy weight and high price of an electric spray gun, and the problems in the background art are effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: a spray gun with excellent spraying effect comprises a spray head mechanism, a paint bucket, a base for mounting a motor, an extrusion mechanism for sucking paint and spraying the paint, and a power mechanism for providing power for the extrusion mechanism, a worm capable of freely rotating along with the output end of the motor is arranged on the base, a worm wheel capable of freely rotating is arranged in the power mechanism, the worm wheel and the worm are mutually matched, the axis of the worm wheel is provided with a mandrel which is inserted into the steering part, the steering part comprises a sliding rod, when the motor rotates, under the action of the worm and the worm wheel, the sliding rod can reciprocate along a straight line, one end of the extrusion mechanism is contacted with the sliding rod, the other end of the sliding rod is connected with the spray head mechanism, and when the sliding rod pushes against the extrusion mechanism to move, the extrusion mechanism can suck the paint in the paint bucket into the extrusion mechanism and send the paint into the spray head mechanism by the extrusion mechanism to spray the paint.

Preferably, the turning part further comprises a turntable, a poking rod and a movable block, the lower end of the movable block is inserted into the sliding rod, a first groove is formed in the upper end of the movable block, the turntable is driven to rotate through a mandrel, the mandrel and the turntable are coaxially arranged, the poking rod is fixedly connected onto the turntable, and the axis of the poking rod and the axis of the turntable are located on different straight lines to form a cam structure.

Preferably, a cylindrical insert is movably mounted in the first groove, an insertion hole is formed in the insert in a penetrating mode, and the poke rod is inserted into the insertion hole.

Preferably, a notch is formed in the sliding rod, the movable block is inserted into the sliding rod through the notch, and positioning holes are formed in the sliding rod and the movable block; and a second groove is formed in the sliding rod.

Preferably, the extrusion mechanism comprises an oil duct pulse thimble, a pressure spring, a sleeve, an extrusion mechanism and an oil duct pulse assembly, the oil duct pulse thimble is provided with an end A and an end B, the end A can be just inserted into the sleeve, the surface of the sleeve is provided with a first through hole, the end A is provided with a recessed port, the sleeve is inserted into the oil duct pulse assembly, the oil duct pulse assembly is provided with a second through hole, the first through hole is aligned with the second through hole, the second through hole is connected with a paint bucket, paint in the paint bucket can pass through the second through hole and the first through hole and enter the recessed port, the oil duct pulse assembly is internally provided with a through hole which is divided into an upper section and a lower section, the diameter of the upper section is larger than that of the lower section, the sleeve is inserted into the lower section, and the extrusion mechanism is inserted into the upper section and has a structure with a large upper part and a small part, when the extruding mechanism is inserted into the upper section, the extruding mechanism can seal the opening of the upper section, and the pressure spring is installed on the B end.

Preferably, extruding means includes bivalve coupling spring, bleeder valve and check valve, and bivalve coupling spring is located between bleeder valve and the check valve, and the check valve can be put into in the upper segment and support the junction of upper segment and hypomere and isolate upper segment and hypomere, the discharge gate that is provided with that runs through on the bleeder valve, and the side of bleeder valve is the inclined plane, the inclined plane that has outside expansion on the opening end of upper segment, the bleeder valve combines and seals the open end of upper segment with the open end of upper segment.

Preferably, the nozzle mechanism comprises an oil duct assembly lock catch and an atomizing cap, and the atomizing cap and the oil duct assembly lock catch. The rigid coupling is in the same place, and atomizing cap threaded connection is on extrusion mechanism, the last rigid coupling that still has the nozzle of atomizing cap, be provided with the screw thread on the surface of upper segment, the nozzle can with upper segment threaded connection to in impressing the upper segment with the bleeder valve, be provided with the accent that can change the spraying direction in the shower nozzle mechanism and construct.

Preferably, the direction adjusting mechanism comprises a shifting block, a pressing plate and an atomizing spray head, the atomizing spray head is communicated with the nozzle, the shifting block and the pressing plate are arranged between the atomizing spray head and the nozzle, the atomizing spray head can rotate along with the shifting block when the shifting block rotates, the atomizing spray head is provided with spray holes, and the spray holes are circular or long-strip-shaped.

Preferably, the paint bucket comprises a bucket cover and a bucket body, the paint pipeline is connected to the bucket cover, and an air inlet hole and a material return hole are formed in one side of the paint pipeline; the number of the first through holes is two, one of the first through holes is opposite to the second through hole, and the other first through hole is connected with the material returning hole.

Compared with the prior art, the invention has the beneficial effects that:

1) the power mechanism and the steering part are arranged, so that the power of the motor can be conveniently converted and output when the device is used, and the steering part can continuously output the reciprocating motion on a straight line;

2) by arranging the extrusion mechanism, the paint can be sucked by replacing an air cylinder when the device is used, and the sucked paint is sprayed out;

3) the extrusion mechanism is arranged, so that the paint can be quantitatively sprayed, the effect of the sprayed paint surface is better, and the thickness of the paint surface is more uniform;

4) the direction adjusting mechanism is arranged, so that a user can conveniently adjust the shape and the direction of spraying, and the use of the user is facilitated.

5) When the device is implemented, an air cylinder is not needed, the spraying effect is good, the spraying surface of the device is smoother than that of a pneumatic spray gun, the whole weight of the device is light, the operation is convenient, the price is cheaper than that of an electric spray gun, the device is convenient to disassemble and assemble, and the device can be conveniently used/disassembled by a user.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of FIG. 1 according to the present invention;

FIG. 3 is a schematic illustration of the exploded structure of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of the combination of the turning part, the oil duct pulse thimble and the direction adjusting mechanism of the present invention;

FIG. 5 is an enlarged schematic view of the turntable of the present invention;

FIG. 6 is an enlarged schematic view of an oil passage pulse thimble according to the present invention;

FIG. 7 is an enlarged schematic view of the movable block of the present invention;

FIG. 8 is an enlarged schematic view of the sleeve of the present invention;

FIG. 9 is an enlarged schematic view of an oil passage pulse assembly according to the present invention;

FIG. 10 is an enlarged schematic view of the extruding mechanism of the present invention;

FIG. 11 is a schematic view showing an internal structure of a turning part according to the present invention;

fig. 12 is a schematic view of the internal structure of the tub cover according to the present invention;

FIG. 13 is an enlarged schematic view of the direction-adjusting mechanism of the present invention;

FIG. 14 is an enlarged schematic view of a sprinkler mechanism according to the present invention;

FIG. 15 is an internal schematic view of the combination of the sleeve, oil passage pulse assembly, oil passage pulse thimble and extrusion mechanism of the present invention;

FIG. 16 is a schematic view of the present invention in combination with the nozzle of FIG. 15;

FIG. 17 is a schematic view of the present invention when the recessed opening of FIG. 16 is moved into the upper section.

In the figure: 1. a machine base; 101. a worm; 2. a power mechanism; 21. a first housing; 22. a second housing; 23. a worm gear; 24. a mandrel; 3. an extrusion mechanism; 31. a third housing; 32. an oil duct pulse thimble; 3201 fixing block at end; 3202. a recessed port; 33. a pressure spring; 34. a sleeve; 3401. a first through hole; 35. an external thread; 36. an extrusion mechanism; 3601. a double valve connecting spring; 3602. a discharge valve; 3603. a one-way valve; 37. an oil duct pulse assembly; 3701. a second through hole; 4. a nozzle mechanism; 41. the oil duct assembly is locked; 42. an atomizing cap; 43. a nozzle; 5. a direction adjusting mechanism; 51. a shifting block; 52. pressing a plate; 53. an atomizing spray head; 6. a paint bucket; 61. a barrel cover; 62. a barrel body; 63. painting the pipeline; 64. an air inlet; 65. a material returning hole; 7. a steering section; 71. a slide bar; 72. a turntable; 73. a poke rod; 74. an insert; 75. a movable block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 17, the invention discloses a spray gun with excellent spraying effect, which comprises a nozzle mechanism 4 and a paint bucket 6, and further comprises a base 1 for mounting a motor, a squeezing mechanism 3 for sucking paint and spraying the paint, a power mechanism 2 for providing power for the squeezing mechanism 3, the paint bucket 6 for containing the paint, and a direction adjusting mechanism 5 for adjusting the shape of the sprayed paint. When the device is used, the motor is installed on the base 1, the power output by the motor is transmitted to the power mechanism 2, the power mechanism 2 converts the power and transmits the power to the extrusion mechanism 3, the extrusion mechanism 3 can suck the paint and spray the paint onto the spray head mechanism 4, and the direction adjusting mechanism 5 adjusts the spraying shape of the paint.

As shown in fig. 3, a worm 101 capable of freely rotating along with the output end of the motor is installed on the base 1, a worm wheel 23 capable of freely rotating is arranged in the power mechanism 2, the worm wheel 23 is matched with the worm 101, the power output by the motor is circular, and the power output by the motor can be enabled to output linear reciprocating motion through the action of the worm wheel 23 and the worm 101 and the action of the power mechanism 2, so that the power mechanism can conveniently provide power for subsequent use of the power mechanism.

The axis of the worm wheel 23 is provided with a mandrel 24, the mandrel 24 is inserted into the steering part 7, the steering part 7 comprises a sliding rod 71, when the motor rotates, under the action of the worm 101 and the worm wheel 23, the sliding rod 71 can reciprocate along a straight line, one end of the extrusion mechanism 3 is in contact with the sliding rod 71, the other end of the extrusion mechanism 3 is connected with the spray head mechanism 4, when the sliding rod 71 pushes against the extrusion mechanism 3 to move, the extrusion mechanism 3 can suck the paint in the paint bucket 6 into the extrusion mechanism 3 and send the paint into the spray head mechanism 4 through the extrusion mechanism 3 to be sprayed out, and the paint in the paint bucket 6 can be sucked into the extrusion mechanism 3 and then enters the spray head mechanism 4 along with the extrusion mechanism 3. The third shell 31 is arranged outside the extrusion mechanism 3, the third shell 31 is fixedly connected with a connecting shaft, the base 1 is fixedly connected with the first shell 21 and the second shell 22 which are used for protecting the worm 101 and the worm wheel 23, the second shell 22 is provided with a mounting hole, and the connecting shaft is inserted into the mounting hole, so that the device can be conveniently mounted, and the extrusion mechanism 3 can be protected to a certain extent.

As shown in fig. 4, 5 and 7, the turning part 7 further comprises a rotating plate 72, a poke rod 73 and a movable block 75, the lower end of the movable block 75 is inserted into the sliding rod 71, when the device is not in use, or when the inside of the turning part 7 needs to be maintained, the user can conveniently take down the movable block 75, and the upper end of the movable block 75 is provided with a first groove, the rotary disc 72 is driven to rotate by the mandrel 24, the mandrel 24 and the rotating disc 72 are coaxially arranged, the rotating disc 72 is fixedly connected with a poking rod 73, the axial line of the poking rod 73 and the axial line of the rotating disc 72 are positioned on different straight lines to form a cam structure, the poking rod 73 is inserted into the first groove, when the rotating disc 72 rotates, the poking rod 73 makes circular motion, and the poke rod 73 is inserted into the first groove (and the size of the first groove is larger than that of the poke rod 73), namely, the movable block 75 can be poked to reciprocate towards two different directions at the moment.

The cylindrical insert 74 is movably mounted in the first groove, an insertion hole is formed in the insert 74 in a penetrating mode, the poke rod 73 is inserted into the insertion hole, when the poke rod 73 is inserted into the insert 74 and the movable block 75 reciprocates back and forth, the insert 74 can rotate on the inner wall of the first groove, and therefore the poke rod 73 is convenient to match with the movable block 75.

As shown in fig. 11, a notch is formed in the inside of the sliding rod 71, the movable block 75 is inserted into the sliding rod 71 through the notch, and positioning holes are formed in both the sliding rod 71 and the movable block 75, since the movable block 75 is movably connected with the sliding rod 71, when the device is used, the movable block 75 may be separated from the sliding rod 71, and in order to avoid this, a positioning pin is inserted into the positioning hole, so that the movable block 75 can be stably positioned in the sliding rod 71, and a corresponding positioning hole is also formed in the second housing 22, thereby facilitating the installation and detachment of the positioning pin; the sliding rod 71 is internally provided with a second groove, and the second groove can reduce the weight of the sliding rod 71, so that the sliding rod is more energy-saving.

As shown in fig. 3, 6, 8, 9, and 10, the squeezing mechanism 3 includes an oil passage pulse thimble 32, a pressure spring 33, a sleeve 34, a squeezing mechanism 36, and an oil passage pulse assembly 37, the oil passage pulse thimble 32 has an a end and a B end, the a end can be just inserted into the sleeve 34, a first through hole 3401 is opened on the surface of the sleeve 34, a recessed port 3202 is opened on the a end, the sleeve 34 is inserted into the oil passage pulse assembly 37, a second through hole 3701 is opened on the oil passage pulse assembly 37, the first through hole 3401 is aligned with the second through hole 3701, the second through hole 3701 is connected with the paint bucket 6, the paint in the paint bucket 6 can enter the recessed port 3202 through the second through hole 3701 and the first through hole 3401, the paint is filled in the recessed port 3202 after passing through the first through hole 3401 and the second through hole 3701, the through hole is provided in the oil passage pulse assembly 37, the upper through hole is divided into an upper section and a lower section, and the diameter of the upper section is larger than the lower section, the sleeve 34 is inserted into the lower section, the extrusion mechanism 36 having a structure in which the extrusion mechanism 36 is inserted into the upper section, the extrusion mechanism 36 having a large upper portion and a small lower portion, and when the extrusion mechanism 36 is inserted into the upper section, one end of the extrusion mechanism 36 seals the opening of the upper section (a discharge port for discharging paint is provided at the end of the extrusion mechanism 36), and the other end thereof abuts against the joint surface between the upper section and the lower section to separate the upper section from the lower section, and the pressure spring 33 is attached to the end B.

When the extruding mechanism 3 is installed, the oil passage pulse thimble 32 is inserted into the sleeve 34 (at this time, the first through hole 3401 is blocked with the other end of the sleeve 34, and the oil passage pulse thimble 32 and the sleeve 34 have a closed space), then the sleeve 34 is sleeved in the oil passage pulse assembly 37, the first through hole 3401 is aligned with the second through hole 3701, (the sleeve 34 is just inserted into the oil passage pulse assembly 37, that is, paint does not flow out along a gap between the sleeve 34 and the oil passage pulse assembly 37), and then the extruding mechanism 36 is inserted into the upper section of the oil passage pulse assembly 37. When the oil duct pulse thimble is operated, the recess port 3202 of the oil duct pulse thimble 32 moves forward to enter the upper section, at this time, because the upper section is sealed by the extrusion mechanism, the air in the upper section is discharged from the discharge port, and at this time, the pressure in the recess port 3202 becomes small (a negative pressure space is formed); then, when the gallery pulse thimble 32 is reset, the recess port 3202 is aligned with the first through hole 3401 and the second through hole 3701, and the pressure inside the paint bucket 6 is the same as the external pressure, so that the paint can be gradually pressed into the recess port 3202 and discharged into the upper section through the recess port 3202 and ejected from the discharge port of the extruding mechanism 36.

As shown in fig. 10, the extruding mechanism 36 includes a double valve connecting spring 3601, a discharge valve 3602 and a check valve 3603, the double valve connecting spring 3601 is located between the discharge valve 3602 and the check valve 3603, the check valve 3603 can be placed in the upper section and abut against the joint of the upper section and the lower section to isolate the upper section from the lower section, a discharge port is penetratingly arranged on the discharge valve 3602, the side surface of the discharge valve 3602 is an inclined surface, an inclined surface expanding outwards is arranged on the opening end of the upper section, the discharge valve 3602 is combined with the opening end of the upper section to seal the opening end of the upper section, so as to ensure that the upper section is sealed, and air and paint in the upper section are discharged through the discharge port on the discharge valve 3602. When the paint is extruded by the oil duct pulse thimble 32, the oil duct pulse thimble 32 is pushed out forwards, air in the recessed port 3202 is exhausted firstly, then the paint in the paint bucket 6 can enter the recessed port 3202 along a conveying pipeline due to the fact that the pressure in the recessed port 3202 is reduced, then the paint can enter an upper section (namely between the discharge valve 3602 and the one-way valve 3603) through the transportation of the recessed port 3202, then the paint is sprayed out under the action of the extruding mechanism 36 (namely the discharge valve 3602 and the one-way valve 3603 are close to each other to spray the paint), the one-way valve 3603 can be pushed to move together when the oil duct pulse thimble 32 reciprocates, when the one-way valve 3603 is close to the discharge valve 3602, the distance between the discharge valve 3602 and the paint between the discharge valve 3603 and the spray hole on the discharge valve 3602 can be sprayed out.

As shown in fig. 14, the nozzle mechanism 4 includes an oil passage assembly lock 41 and an atomizing cap 42, the atomizing cap 42 is fixedly connected with the oil passage assembly lock 41, the oil passage assembly lock 41 is screwed on the pressing mechanism 3, an annular connecting block is provided at the lower end of the oil passage assembly lock 41, and an internal thread is provided in the connecting block, the internal thread is matched with the external thread 35 to connect the oil passage assembly lock 41 to the third housing 31, a nozzle 43 is further installed on the atomizing cap 42, the nozzle 43 has a thread inside, and the oil passage pulse assembly 37 also has a thread matched with the internal thread, so as to install and fix the nozzle 43, and when the nozzle 43 is installed, the nozzle 43 can press the discharge valve 3602 into the upper section, thereby ensuring that the open end of the upper section is sealed by the discharge valve 3602 (i.e. when the nozzle 43 is not installed, the discharge valve 3602 and the check valve 3603 are placed into the oil passage pulse assembly 37, when the double-valve connecting spring 3601 is in a free state, the discharge valve 3602 is ejected outwards by the double-valve connecting spring 3601 and extends out of the opening end of the upper section), paint is sprayed out by the extruding mechanism 3 and enters the nozzle 43, when the traditional spray gun is used, the paint is directly sprayed out by the nozzle 43, and the direction adjusting mechanism 5 capable of changing the spraying direction is arranged in the spray head mechanism 4.

As shown in fig. 13, the direction adjusting mechanism 5 includes a dial block 51, a pressing plate 52 and an atomizing nozzle 53, the dial block 51 extends along the inner wall of the atomizing cap 42 to extend to the outside of the atomizing cap 42, the pressing plate 52 is used to facilitate the installation of the dial block 51, the pressing plate 52 is of an annular structure, an opening is formed in the pressing plate 52, and the pressing plate 52 has a certain elasticity, so that the pressing plate 52 is more conveniently clamped between the atomizing nozzle 53 and the dial block 51, the atomizing nozzle 53 is communicated with the nozzle 43, the dial block 51 and the pressing plate 52 are arranged between the atomizing nozzle 53 and the nozzle 43, and when the dial block 51 rotates, the atomizing nozzle 53 can rotate along with the pressing plate, the atomizing nozzle 53 has a nozzle hole, and the nozzle hole is circular or elongated (the elongated structure is not shown). In the in-process that this device used, the user can select the shape of orifice according to the shape of the product of taking the spraying, and when the orifice was rectangular shape, the user can adjust the inclination of orifice through rotating the block 51 of dialling, and then changes the shape of spun paint to the adaptation demand. The end of the dial block 51 is provided with a fixing plate extending towards the inner direction of the oil duct assembly lock catch 41, so that the fixing plate can be clamped on the outer edge of the atomizing cap 42, and the rotation track of the dial block 51 is limited.

As shown in fig. 3 and 12, the paint bucket 6 includes a bucket cover 61 and a bucket body 62, a paint pipeline 63 is connected to the bucket cover 61, the paint pipeline 63 is communicated with a first through hole 3401 and a second through hole 3701, so that paint can enter the first through hole 3401 and the second through hole 3701, and an air inlet 64 and a material returning hole 65 are formed in one side of the paint pipeline 63; the number of first through-holes 3401 is two, one of them first through-hole 3401 is relative with second through-hole 3701, another first through-hole 3401 links to each other with feed back hole 65, inlet port 64 and external intercommunication, and then when this device used, the air can enter into in the paint kettle 6. when this scheme was implemented, a mount pad has on third shell 31, bung 61 is installed in the mount pad, and one of them first through-hole 3401 and second through-hole 3701 all are located the mount pad, paint pipeline 63 on the bung 61 communicates with one of them first through-hole 3401, second through-hole 3701, staving 62 and bung 61 are detachable connected mode, can convenience of customers dismantle staving 62 like this. The material returning hole 65 is connected to the other first through hole 3401, and when impurities enter the extruding mechanism 36 or the discharging speed is not in time, paint is accumulated in the recessed port 3202, so that in order to prevent the paint from entering the turning part 7, the paint remaining in the recessed port 3202 can flow back into the paint bucket 6 along the other first through hole 3401.

When the device is used, firstly, a motor (a motor with more than 5000 turns can be selected) outputs power to the device, the motor drives a worm 101 to rotate, the worm 101 transmits rotation to a worm wheel 23, the worm wheel 23 can drive a mandrel 24 to rotate together when rotating, the mandrel 24 can drive a rotary disc 72 to rotate when rotating, a poking rod 73 at the lower end of the rotary disc 72 rotates along with the rotary disc 72 and makes circular motion when rotating, the lower end of the poking rod 73 is inserted into a movable block 75, an inserting piece 74 in the movable block 75 is combined with the poking rod 73, the poking rod 73 can conveniently poke the movable block 75, as a certain abdicating space is formed in the movable block 75, the movable block 75 can only make linear reciprocating motion in a preset direction, and when the movable block 75 moves, the movable block 75 can drive a sliding rod 71 to synchronously move, the end of the sliding rod 71 pushes against an oil duct pulse thimble 32, under the cooperation of the pressure spring 33, the oil passage pulse thimble 32 can also reciprocate in the linear direction, and during the reciprocating motion of the oil passage pulse thimble 32, the sleeve 34 can discharge air in the paint pipe 63 in the paint bucket 6 under the cooperation of the first through hole 3401 and the second through hole 3701 at the upper end of the oil passage pulse assembly 37, then the paint in the paint bucket 6 can enter the recessed port 3202 along the paint pipe 63, the second through hole 3701 and the first through hole 3401 aligned with the second through hole 3701 under the action of air pressure, and move along with the oil passage pulse thimble 32 and further enter the extruding mechanism 36, and during the motion of the oil passage pulse thimble 32, the basic mechanism 36 can be compressed, so that the paint in the extruding mechanism 36 can be sprayed along the end of the extruding mechanism 36 and enter the nozzle 43. The atomizer 53 is in communication with the nozzle 43 such that paint in the nozzle 43 enters the atomizer 53 and is sprayed along the atomizer 53.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spray gun that spraying effect is excellent, includes shower nozzle mechanism (4) and paint kettle (6), its characterized in that: also comprises a base (1) for mounting a motor, a squeezing mechanism (3) for sucking paint and spraying the paint, and a power mechanism (2) for providing power for the squeezing mechanism (3),

the motor comprises a base (1), a worm (101) capable of freely rotating along with the output end of a motor is installed on the base (1), a worm wheel (23) capable of freely rotating is arranged in a power mechanism (2), the worm wheel (23) is matched with the worm (101), a mandrel (24) is arranged on the axis of the worm wheel (23), the mandrel (24) is inserted into a steering part (7), the steering part (7) comprises a sliding rod (71), and when the motor rotates, the sliding rod (71) can linearly reciprocate under the action of the worm (101) and the worm wheel (23),

one end of the extrusion mechanism (3) is contacted with the sliding rod (71), the other end of the extrusion mechanism (3) is connected with the spray head mechanism (4), and when the sliding rod (71) pushes against the extrusion mechanism (3) to move, the extrusion mechanism (3) can suck the paint in the paint bucket (6) into the extrusion mechanism (3) and send the paint into the spray head mechanism (4) by the extrusion mechanism (3) to be sprayed out,

the extrusion mechanism (3) comprises an oil channel pulse thimble (32), a pressure spring (33), a sleeve (34), an extrusion mechanism (36) and an oil channel pulse assembly (37), wherein the oil channel pulse thimble (32) is provided with an A end and a B end, the A end can be just inserted into the sleeve (34), a first through hole (3401) is formed in the surface of the sleeve (34), a recessed port (3202) is formed in the A end, the sleeve (34) is inserted into the oil channel pulse assembly (37), a second through hole (3701) is formed in the oil channel pulse assembly (37), the first through hole (3401) is aligned with the second through hole (3701), the second through hole (3701) is connected with a paint bucket (6), paint in the paint bucket (6) can pass through the second through hole (3701) and the first through hole (3401) and enter the recessed port (3202), and a through hole is formed in the oil channel pulse assembly (37), the through hole is divided into an upper section and a lower section, the diameter of the upper section is larger than that of the lower section, the sleeve (34) is inserted into the lower section, the extruding mechanism (36) is inserted into the upper section, the extruding mechanism (36) is of a structure with a large upper part and a small lower part, when the extruding mechanism (36) is inserted into the upper section, the opening of the upper section can be sealed by the extruding mechanism (36), and the pressure spring (33) is installed on the end B.

2. The spray gun excellent in spray effect according to claim 1, characterized in that: turn to portion (7) and still include carousel (72), poker rod (73) and movable block (75), the lower extreme of movable block (75) inserts in slide bar (71), and the upper end of movable block (75) has first recess, carousel (72) are rotated through dabber (24) drive, and dabber (24) and carousel (72) are coaxial setting, the rigid coupling has poker rod (73) on carousel (72), and the axis of poker rod (73) and the axis of carousel (72) are located different straight lines in order to constitute cam structure.

3. The spray gun excellent in spray effect according to claim 2, characterized in that: a cylindrical insert (74) is movably mounted in the first groove, an insertion hole is formed in the insert (74) in a penetrating mode, and the poke rod (73) is inserted into the insertion hole.

4. The spray gun excellent in spray effect according to claim 2, characterized in that: a notch is formed in the sliding rod (71), the movable block (75) is inserted into the sliding rod (71) through the notch, and positioning holes are formed in the sliding rod (71) and the movable block (75); and a second groove is formed in the sliding rod (71).

5. The spray gun excellent in spray effect according to claim 1, characterized in that: the extruding mechanism (36) comprises a double-valve connecting spring (3601), a discharge valve (3602) and a one-way valve (3603), the double-valve connecting spring (3601) is positioned between the discharge valve (3602) and the one-way valve (3603), the one-way valve (3603) can be placed in the upper section and abuts against the joint of the upper section and the lower section to isolate the upper section from the lower section, a discharge hole penetrates through the discharge valve (3602), the side surface of the discharge valve (3602) is an inclined surface, an inclined surface which expands outwards is arranged on the opening end of the upper section, and the discharge valve (3602) is combined with the opening end of the upper section to seal the opening end of the upper section.

6. The spray gun excellent in spray effect according to claim 5, characterized in that: shower nozzle mechanism (4) include oil duct assembly hasp (41) and atomizing cap (42), atomizing cap (42) are in the same place with oil duct assembly hasp (41) rigid coupling, and oil duct assembly hasp (41) threaded connection is on extrusion mechanism (3), it has nozzle (43) to go back the rigid coupling on atomizing cap (42), be provided with the screw thread on the surface of upper segment, nozzle (43) can with upper segment threaded connection to in pressing discharge valve (3602) into the upper segment, be provided with the accent that can change the spraying direction in shower nozzle mechanism (4) and to mechanism (5).

7. The spray gun excellent in spray effect according to claim 6, characterized in that: the direction adjusting mechanism (5) comprises a shifting block (51), a pressing plate (52) and an atomizing spray head (53), the atomizing spray head (53) is communicated with the spray nozzle (43), the shifting block (51) and the pressing plate (52) are arranged between the atomizing spray head (53) and the spray nozzle (43), when the shifting block (51) rotates, the atomizing spray head (53) can rotate along with the shifting block, spray holes are formed in the atomizing spray head (53), and the spray holes are circular or long-strip-shaped.

8. The spray gun excellent in spray effect according to claim 1, characterized in that: the paint bucket (6) comprises a bucket cover (61) and a bucket body (62), a paint pipeline (63) is connected to the bucket cover (61), and an air inlet hole (64) and a material returning hole (65) are formed in one side of the paint pipeline (63); the number of the first through holes (3401) is two, one of the first through holes (3401) is opposite to the second through hole (3701), and the other first through hole (3401) is connected with the material returning hole (65).