Color paint sprayer nozzle and paint sprayer

Abstract

The utility model discloses a color paint sprayer nozzle and a paint sprayer, and belongs to the technical field of paint spraying. A color paint sprayer nozzle comprises a shell, one end of the shell is connected with a feeding pipe, the other end of the shell is open and detachably fixed with a cover plate for plugging, and the cover plate is provided with a plurality of through spraying holes; a protection assembly is arranged on the side, back to the shell, of the cover plate and comprises a protection cover, a first positioning groove matched with the cover plate is formed in one end of the protection cover, a threaded hole is formed in the outer circle of the protection cover and communicates with the first positioning groove, and a bolt is installed in the threaded hole in a matched mode. A plurality of inserting rods in one-to-one correspondence with the spraying holes are fixed to the protective cover, and when the cover plate is sleeved with the protective cover, the multiple inserting rods can be inserted into the multiple spraying holes correspondingly; therefore, the dry coating blocked in the spraying hole can be cleaned and dredged, and the coating spraying effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of paint spraying, and particularly relates to a nozzle of a color paint sprayer and a paint sprayer. Background Art

[0002] Color paints are usually provided on the walls of sports fields for decoration, and the paints are applied by a sprayer in a spraying manner; during the spraying process, by opening a plurality of spraying holes in the nozzle of the sprayer and under the action of a pump, the paint is ejected from the plurality of spraying holes, so as to improve the spraying range and uniformity of the paint; however, after long-term use, the spraying holes on the nozzle will be blocked by dried paint, thereby affecting the spraying effect. For this reason, a nozzle of a color paint sprayer is proposed. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a nozzle of a color paint sprayer and a paint sprayer, which solves the problems in the prior art.

[0004] The purpose of the utility model can be realized by the following technical solutions:

[0005] A nozzle of a color paint sprayer includes a housing. One end of the housing is connected with a feed pipe, and the other end is open and is detachably fixed with a cover plate for blocking. The cover plate is provided with a plurality of through spraying holes.

[0006] A protection component is arranged on the side of the cover plate facing away from the housing. The protection component includes a protective cover. One end of the protective cover is provided with a first positioning groove for cooperating with the cover plate. Threaded holes are arranged on the outer circumference of the protective cover, and the threaded holes communicate with the first positioning groove. Bolts are installed in the threaded holes in a matching manner.

[0007] A plurality of inserting rods corresponding to the spraying holes one by one are fixed on the protective cover. When the protective cover is sleeved on the cover plate, the plurality of inserting rods can be respectively inserted into the plurality of spraying holes.

[0008] Furthermore, a stepped hole is arranged on the open side of the housing. Internal threads are arranged in the stepped hole, and an external threaded pipe is arranged on the cover plate. The external threaded pipe cooperates with the internal threads in the stepped hole.

[0009] Furthermore, a filter screen is installed in the housing, and the external threaded pipe on the cover plate can press the filter screen against the inner end surface of the stepped hole.

[0010] Furthermore, the diameter of the mesh holes of the filter screen is larger than the diameter of the spraying holes.

[0011] Furthermore, a disc is arranged on the housing. Two positioning holes are arranged on the disc. Two positioning rods are fixed at one end of the protective cover. The two positioning rods can respectively cooperate with the two positioning holes, and the inserting rods are corresponding to the spraying holes one by one.

[0012] When the positioning holes are not aligned with the positioning rods, the positioning rods contact the disc. At this time, the insertion rods will not contact the cover plate.

[0013] Furthermore, on the side of the protective cover facing away from the first positioning groove, a second positioning groove is provided. On the inner end surface of the second positioning groove, a plurality of through holes are provided. At each through hole, a counterbore is coaxially provided. One end of the insertion rod is coaxially fixed with a frustum that matches the counterbore, and the end surface of the frustum is flush with the inner end surface of the second positioning groove.

[0014] One side of the protective cover is fixed with a rear baffle by means of bolt connection. On the rear baffle, a boss is provided that matches the second positioning groove. The boss can block the frustum in the counterbore.

[0015] Furthermore, the diameter of the through hole is larger than the diameter of the insertion rod.

[0016] A color paint sprayer includes a pump and also includes the above-mentioned spray head. The pump brings the paint into the shell from the feed pipe and sprays it out from the spray holes.

[0017] Advantages of the present utility model:

[0018] 1. By detachably fixing a cover plate on one side of the shell, a plurality of spray holes are provided on the cover plate. Under the action of the pump, the paint is sprayed out from the spray holes; and by providing a protection component on one side of the cover plate, the protection component includes a protective cover that can be sleeved and fixed on the cover plate, and a plurality of insertion rods corresponding to the spray holes one by one are fixed on the protective cover, so as to clean and dredge the dried paint blocked in the spray holes to ensure the paint spraying effect.

[0019] 2. By providing a disc on the shell and providing two positioning holes on the disc to cooperate with the two positioning rods on the protective cover to ensure that the insertion rods correspond to the spray holes and prevent the insertion rods from colliding with the cover plate due to not being aligned with the spray holes, resulting in deformation.

[0020] 3. By providing a plurality of through holes and a plurality of counterbores on the protective cover to position and install the insertion rods, and providing a rear baffle on one side of the cover plate, and providing a boss on the rear baffle to block the frustum in the counterbore, the fixing of the insertion rods is realized, which is convenient for the disassembly and installation of the insertion rods. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is the overall structural schematic diagram of the present utility model;

[0023] Figure 2 is a schematic structural view of the housing of the present utility model;

[0024] Figure 3 is a schematic structural view of the cover plate of the present utility model;

[0025] Figure 4 is a schematic structural view of the protection component of the present utility model;

[0026] Figure 5 is a schematic structural view of the protective cover of the present utility model;

[0027] Figure 6 is a schematic structural view of the pressure plate of the present utility model; Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0029] As Figures 1 to 3 shown, a nozzle of a color paint sprayer includes a housing 1. One end of the housing 1 is connected with a feed pipe 2, and the other end is open and provided with a cover plate 3 for plugging. A stepped hole 11 is arranged on the open side of the housing 1, and an internal thread is arranged in the stepped hole 11. An external thread tube 32 is arranged on the cover plate 3, and the external thread tube 32 cooperates with the internal thread in the stepped hole 11, so as to realize the detachable fixed connection between the cover plate 3 and the housing 1, facilitating the later cleaning of the inside of the housing 1. A plurality of through spray holes 31 are opened on the cover plate 3. Under the action of a pump, the paint enters the inside of the housing 1 from the feed pipe 2 and is sprayed out from the spray holes 3;

[0030] It is worth mentioning that a filter screen 4 is installed inside the housing 1. When the cover plate 3 is installed in place on the housing 1, the external thread tube 32 on the cover plate 3 can press the filter screen 4 against the inner end face of the stepped hole 11 to fix the filter screen 4. Moreover, the diameter of the mesh holes of the filter screen 4 is larger than the diameter of the spray holes 31, used to filter and block larger particulate matter in the paint, reducing the probability of the spray holes 31 being blocked;

[0031] Of course, the fixing method between the cover plate 3 and the housing 1 includes but is not limited to the structure such as the external thread tube 32 in this embodiment. In some embodiments, the cover plate 3 can also be locked to the end of the housing 1 by means of bolt connection, which is also convenient for disassembly.

[0032] On the side of the cover plate 3 facing away from the housing 1, a protective component 5 is provided, as Figure 4 shown. The protective component 5 includes a protective cover 51. One end of the protective cover 51 is provided with a first positioning groove 511. The first positioning groove 513 cooperates with the outer circle of the cover plate 3. Threaded holes 515 are provided on the outer circle of the protective cover 51, and the threaded holes 515 communicate with the first positioning groove 513. Bolts are fitted and installed in the threaded holes 515. By sleeving the protective cover 51 on the outside of the cover plate 3 and turning the bolts, the end face of the bolts abuts against the cover plate 3, so that the fixation between the protective cover 51 and the cover plate 3 can be realized, thus playing a protective role for the nozzle and the injection holes;

[0033] A plurality of insertion rods 52 are fixed on the protective cover 51, and the insertion rods 52 can correspond to the injection holes 31 one by one. When the protective cover 51 is sleeved on the cover plate 3, the plurality of insertion rods 52 can be respectively inserted into the plurality of injection holes 31, so as to clean and dredge the dried paint blocked in the injection holes 31 to ensure the paint injection effect;

[0034] It is worth mentioning that in this embodiment, a disc 12 is provided on the housing 1, and two positioning holes 13 are provided on the disc 12. Two positioning rods 516 are fixed at one end of the protective cover 51, and the two positioning rods 516 can cooperate with the two positioning holes 13 respectively, so that the insertion rods 52 correspond to the injection holes 31 one by one. When in use, when the positioning hole 516 fails to align with the positioning rod 516, the positioning rod 516 will contact the disc 12. At this time, the insertion rod 52 will not contact the cover plate 3, avoiding collision and deformation damage due to the insertion rod 52 being too thin and not aligned with the cover plate 3.

[0035] A second positioning groove 512 is provided on the side of the protective cover 51 facing away from the first positioning groove 511. A plurality of through holes 513 are provided on the inner end face of the second positioning groove 512. The insertion rods 52 are installed in the through holes 513. A countersunk hole 514 is coaxially provided at each through hole 513, as Figure 6 shown. One end of the insertion rod 52 is coaxially fixed with a frustum 521, and the frustum 521 cooperates with the countersunk hole 514. The end face of the frustum 521 is flush with the inner end face of the second positioning groove 512 to realize the positioning of the insertion rod 52;

[0036] A rear baffle 53 is fixed on one side of the protective cover 51 by means of bolt connection. A boss 531 is provided on the rear baffle 53, which can block the frustum 521 in the countersunk hole 514, thus realizing the fixation of the insertion rod 52. And by disassembling the rear baffle 53, the disassembly and installation of the insertion rod 52 can be facilitated;

[0037] In addition, the diameter of the through hole 513 should be larger than that of the insertion rod 52, so that when the insertion rod 52 undergoes a small bending deformation, the insertion rod 52 can be pulled out from the protective cover 51 by removing the rear baffle 53, facilitating replacement.

[0038] Working principle:

[0039] A cover plate 3 is detachably fixed to one side of the housing 1. A plurality of spraying holes 31 are formed in the cover plate 3. Under the action of a pump, the coating material is sprayed out from the spraying holes 31. A protective component 5 is arranged on one side of the cover plate 3. The protective component 5 includes a protective cover 51 that can be sleeved and fixed on the cover plate 3, and a plurality of insertion rods 52 corresponding to the spraying holes 31 one by one are fixed on the protective cover 51, so that the dried coating material blocked in the spraying holes 31 can be cleaned and dredged to ensure the coating spraying effect. A disk 12 is arranged on the housing 1, and two positioning holes 13 are formed in the disk 12 to cooperate with two positioning rods 516 on the protective cover 51 to ensure that the insertion rods 52 correspond to the spraying holes 31 and prevent the insertion rods 52 from colliding with the cover plate 3 when not aligned with the spraying holes 31, resulting in deformation. A plurality of through holes 513 and a plurality of counterbore holes 514 are formed in the protective cover 51 to position and install the insertion rods 52. A rear baffle 53 is arranged on one side of the cover plate 3, and a boss 531 is arranged on the rear baffle 53 to block the frustum 521 in the counterbore holes 514, thereby realizing the fixation of the insertion rods 52 and facilitating the disassembly and installation of the insertion rods 52.

[0040] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A color paint sprayer nozzle, comprising a housing (1), characterized in that: One end of the shell (1) is connected to a feed pipe (2), and the other end is open and has a cover plate (3) detachably fixed thereto for blocking, wherein the cover plate (3) is provided with a plurality of through-spray holes (31); A protection component (5) is arranged on the side of the cover plate (3) facing away from the housing (1), the protection component (5) comprising a protection cover (51), one end of the protection cover (51) is provided with a first positioning groove (511) matched with the cover plate (3), a threaded hole (515) is arranged on the outer circle of the protection cover (51), the threaded hole (515) is communicated with the first positioning groove (511), and a bolt is installed in the threaded hole (515); A plurality of insertion rods (52) corresponding one to one with the injection holes (31) are fixed on the protective cover (51); when the protective cover (51) is sleeved on the cover plate (3), the plurality of insertion rods (52) can be respectively inserted into the plurality of injection holes (31).

2. A color paint sprayer nozzle according to claim 1, characterized in that: The shell (1) is provided with a stepped hole (11) on the open side, and an internal thread is provided in the stepped hole (11). An external threaded tube (32) is provided on the cover plate (3), and the external threaded tube (32) cooperates with the internal thread in the stepped hole (11).

3. A color paint sprayer nozzle according to claim 2, characterized in that: A filter screen (4) is installed in the housing (1), and the external threaded pipe (32) on the cover plate (3) can press the filter screen (4) against the inner end surface of the step hole (11).

4. A color paint sprayer nozzle according to claim 3, characterized in that: The mesh diameter of the filter screen (4) is larger than the diameter of the injection hole (31).

5. A color paint sprayer nozzle according to claim 1, characterized in that: The housing (1) is provided with a disk (12), and two positioning holes (13) are provided on the disk (12). Two positioning rods (516) are fixed to one end of the protective cover (51), and the two positioning rods (516) can respectively cooperate with the two positioning holes (13) and make the insertion rod (52) correspond to the injection hole (31) one by one. When the positioning hole (13) is not aligned with the positioning rod (516), the positioning rod (516) contacts the disk (12), and at this time, the insertion rod (52) does not contact the cover plate (3).

6. A color paint sprayer nozzle according to claim 1, characterized in that: The protective cover (51) is provided with a second positioning groove (512) on a side facing away from the first positioning groove (511); a plurality of through holes (513) are provided on the inner end surface of the second positioning groove (512); a countersunk hole (514) is coaxially arranged at each through hole (513); a truncated cone (521) cooperating with the countersunk hole (514) is coaxially fixed to one end of the insertion rod (52); and the end surface of the truncated cone (521) is flush with the inner end surface of the second positioning groove (512); A rear baffle (53) is fixed to one side of the protective cover (51) by means of bolt connection. A boss (531) matching with the second positioning groove (512) is provided on the rear baffle (53). The boss (531) can seal the round table (521) in the countersunk hole (514).

7. A color paint sprayer nozzle according to claim 6, characterized in that: The diameter of the through hole (513) is larger than the diameter of the insertion rod (52).

8. A color paint sprayer, comprising a pump, characterized in that: It also comprises the spray head as claimed in any one of claims 1 to 7, and the pump brings the paint from the feed pipe (2) into the housing (1) and sprays it out from the spray hole (31).

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