Modularly designed spray gun structure for cutting

Abstract

The utility model discloses a modularly designed spray gun structure for cutting, which belongs to the technical field of spray guns, and comprises a gun body, a short gun barrel, a pipeline joint and an air nozzle, the pipeline joint is in threaded connection with the gun body, the spray gun structure further comprises a first protective pipe and a second protective pipe, and a hexagonal positioning block is fixed at one end of the first protective pipe; the gun body is provided with a cylindrical inner cavity, a hexagonal positioning groove is formed in one end of the cylindrical inner cavity, and a cylindrical groove with the diameter larger than that of the inner cavity is formed in the other end of the cylindrical inner cavity. The first protective tube and the short gun tube are placed in the cylindrical inner cavity of the gun body, the first protective tube and the short gun tube are integrally installed in a threaded connection mode, and the first protective tube, the short gun tube and the gun body are stably installed, so that compared with the prior art, installation steps are reduced, and the installation efficiency is improved. And meanwhile, the mounting stability and the dismounting convenience are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a cutting spray gun structure with a modular design. Background Art

[0002] A Chinese patent with authorization announcement number CN217143587U discloses a split improved spray gun for cutting tools, and proposes a modular spray gun structure, in which a short gun barrel, a pipe joint and an air nozzle are respectively threadedly connected to the gun body, so that the various parts of the spray gun can be installed and disassembled, different types of air nozzles can be replaced, different short gun barrels and long gun barrels can be replaced, and the pipe joint can also be replaced when the thread of the pipe joint is worn, making the spray gun easy to use and disassemble and maintain. At the same time, a frosted tube is provided inside the short gun barrel to protect the short gun barrel and improve the overall service life.

[0003] However, there are problems: the short barrel and the air nozzle need to be installed on the gun body in sequence when in use, and they need to be rotated in sequence during installation, which is inconvenient; there is a section between the air nozzle and the frosted tube in the gun body that is in an exposed state and is not protected. After a long period of use, this section is prone to wear and tear, which still reduces the service life of the gun body.

[0004] The patent also points out another problem existing in the prior art: the threads on the outer surface of the pipe joint are prone to wear and tear, and are prone to loosening after installation, affecting the use of the spray gun. The patent controls the movement of the screw by rotating the shaft so that the screw limits the pipe joint to increase the stability of the pipe joint.

[0005] The problems with the above technical solution are: first, when the spray gun is held in hand, due to the holding posture, the other hand is required to control the rotation of the rotating shaft, and in some cases, such as when the overall vibration amplitude is large, it is also easy to loosen, which reduces its limiting effect and is not conducive to use.

[0006] Therefore, we propose a cutting spray gun structure with a modular design to solve the above-mentioned problems.

[0007] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to a person of ordinary skill in the art. Utility Model Content

[0008] The purpose of the utility model is to provide a cutting spray gun structure with a modular design to solve the problems in the current market raised by the above background technology.

[0009] To achieve the above object, the present utility model provides a modular-designed cutting spray gun structure, which includes a gun body, a short gun barrel, a pipe joint, and a jet nozzle. The pipe joint is threadedly connected to the gun body, and further includes a first protective tube and a second protective tube. One end of the first protective tube is fixed with a hexagonal positioning block;

[0010] The gun body is provided with a cylindrical inner cavity, and one end of the cylindrical inner cavity is provided with a hexagonal positioning groove, and the other end is provided with a cylindrical groove with a diameter larger than that of the inner cavity;

[0011] The first protective tube is arranged in the cylindrical inner cavity of the gun body, and the hexagonal positioning block is located in the hexagonal positioning groove;

[0012] The end of the short gun barrel is located in the cylindrical groove, and the short gun barrel is threadedly connected to the first protective tube and fastened to the gun body;

[0013] The second protective tube is located in the short gun barrel, and both end faces are in contact with the short gun barrel and the first protective tube respectively;

[0014] The jet nozzle is rotatably connected in the hexagonal positioning block, and the end is located in the first protective tube.

[0015] Preferably, the first protective tube includes a first tube body, and a slot is further provided on the end face of the end of the first tube body provided with an external thread;

[0016] The second protective tube includes a second tube body, and a plug-in ring is provided at the end of the second tube body, and the plug-in ring is located in the slot.

[0017] Preferably, the jet nozzle includes a jet pipe and a limit ring rotatably mounted on the hexagonal positioning block, and the jet pipe is fixed to the limit ring by screws.

[0018] Preferably, a sealing ring is further provided in the slot, and the sealing ring is in close contact with the first tube body and the plug-in ring.

[0019] Preferably, the inner diameters at both ends of the second tube body are different, and the inner diameter of the end close to the first tube body is adapted to the first tube body, and the inner diameter of the end far from the first tube body is adapted to the inner diameter of the end of the short gun barrel.

[0020] Preferably, a rotating handwheel is further installed on the limit ring.

[0021] Preferably, the sealing ring is made of rubber.

[0022] Preferably, the gun body is provided with a threaded hole and a cross-shaped groove concentric with the threaded hole. The end of the pipe joint is located in the threaded hole and is threadedly connected to the gun body;

[0023] The end of the pipe joint is rotatably connected with a cross-shaped limiting block, and the cross-shaped limiting block is located in the cross-shaped groove. The cross-shaped limiting block is transversely provided with a limiting hole;

[0024] The gun body is also provided with an electric push rod and a control button;

[0025] The electric push rod is located inside the gun body, and its output end passes through the limiting hole and is clamped on the gun body;

[0026] The control button is electrically connected to the electric push rod.

[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0028] (1) In the present utility model, the first protective tube and the short gun barrel are placed in the cylindrical inner cavity of the gun body, and the first protective tube and the short gun barrel are installed integrally by means of threaded connection, and the first protective tube and the short gun barrel are stably installed with the gun body. Compared with the prior art, the installation steps are reduced, and at the same time, the stability of installation and the convenience of disassembly are ensured.

[0029] (2) In the present utility model, the second protective tube is inserted into the first protective tube, and the first protective tube and the second protective tube are respectively located in the gun body and the short gun barrel, so that effective protection can be formed for both the gun body and the short gun barrel, and the first protective tube and the second protective tube are tightly connected and stably installed. Compared with the prior art, its service life is further improved.

[0030] (3) In the present utility model, through the mutual cooperation of the electric push rod and the cross-shaped limiting block, compared with the prior art, not only the same technical effect of maintaining the stability of the pipe joint as the prior art is achieved, but also its stability is further improved compared with the prior art. When the vibration amplitude is large, the phenomenon that the output end of the electric push rod and the cross-shaped limiting block are loosened will not occur. Further, compared with the prior art, its control is simpler and is convenient for single-handed operation.

[0031] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0033] Figure 2 is a schematic diagram of the structure of the gun body of the present utility model;

[0034] Figure 3 isFigure 2 Structural schematic diagram from another perspective;

[0035] Figure 4 Structural schematic diagram of the pipe joint and cross limit block of the present utility model;

[0036] Figure 5 Structural schematic diagram of the first protective tube and jet nozzle of the present utility model;

[0037] Figure 6 is Figure 5 Structural schematic diagram from another perspective;

[0038] Figure 7 Structural schematic diagram of the jet nozzle of the present utility model;

[0039] Figure 8 is Figure 1 Cross-sectional schematic diagram of;

[0040] Figure 9 is Figure 8 Enlarged structural view of location A in;

[0041] In the figure: 1, gun body; 2, short gun barrel; 3, pipe joint; 4, first protective tube; 5, second protective tube; 6, jet nozzle; 7, hexagonal positioning block; 8, hexagonal positioning groove; 9, cylindrical groove; 10, electric push rod; 11, cross limit block; 12, limit hole; 13, control button; 14, sealing ring; 15, threaded hole; 16, cross-shaped groove;

[0042] 401, first pipe body; 402, slot;

[0043] 501, second pipe body; 502, insertion ring;

[0044] 601, jet pipe; 602, limit ring; 603, screw; 604, rotating handwheel. Specific embodiments

[0045] 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 of the embodiments. It should be noted that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figure, the relative sizes and proportions of the parts shown in the figure are exaggerated or reduced in size and illustrated. Any size is only exemplary and not limiting.

[0046] Embodiment 1:

[0047] Please refer to Figures 1-9, A modular-designed cutting spray gun structure, comprising: a gun body 1, a short barrel 2, a pipe joint 3 and a jet nozzle 6. The pipe joint 3 is threadedly connected to the gun body 1. It also includes a first protective tube 4 and a second protective tube 5. One end of the first protective tube 4 is fixed with a hexagonal positioning block 7. The gun body 1 is provided with a cylindrical inner cavity, and one end of the cylindrical inner cavity is provided with a hexagonal positioning groove 8, and the other end is provided with a cylindrical groove 9 with a diameter larger than the inner diameter of the inner cavity. The first protective tube 4 is arranged in the cylindrical inner cavity of the gun body 1, and the hexagonal positioning block 7 is located in the hexagonal positioning groove 8. The end of the short barrel 2 is located in the cylindrical groove 9, and the short barrel 2 is threadedly connected to the first protective tube 4 and fastened to the gun body 1. The second protective tube 5 is located in the short barrel 2, and both end faces are in contact with the short barrel 2 and the first protective tube 4 respectively. The jet nozzle 6 is rotatably connected in the hexagonal positioning block 7, and the end is located in the first protective tube 4. Compared with the prior art, the improvements are as follows: First, it is not necessary to sequentially thread the paint nozzle 6 and the short barrel 2 onto the gun body 1. Instead, only the first protective tube 4 and the short barrel 2 need to be inserted from both ends of the cylindrical inner cavity of the gun body 1, and then the short barrel 2 and the first protective tube 4 are threadedly connected. Compared with the prior art, it not only simplifies the installation steps of the short barrel 2 and the jet nozzle 6 (omitting the step of threadedly connecting the jet nozzle 6 to the gun body 1), but also enables the short barrel 2 and the first protective tube 4 to form a stable clamping on the gun body 1, enhancing the stability after installation. Second, compared with the prior art, adding the first protective tube 4 can protect the cylindrical inner cavity in the gun body 1, and the first protective tube 4 can also be quickly replaced.

[0048] The first protective tube 4 includes a first tube body 401. One end face of the first tube body 401 provided with an external thread is further provided with a slot 402. The second protective tube 5 includes a second tube body 501. The end of the second tube body 501 is provided with a plug-in ring 502. The plug-in ring 502 is located in the slot 402. A sealing ring 14 is also arranged in the slot 402. The sealing ring 14 is in close contact with the first tube body 401 and the plug-in ring 502. The sealing ring 14 is made of rubber. The inner diameters at both ends of the second tube body 501 are different. The inner diameter of the end close to the first tube body 401 is adapted to the first tube body 401, and the inner diameter of the end far from the first tube body 401 is adapted to the inner diameter of the end of the short barrel 2.

[0049] Embodiment 2:

[0050] Please continue to refer to Figures 1-9 , On the basis of Embodiment 1, the structure of the jet nozzle 6 is improved. Among them: The jet nozzle 6 includes a spray pipe 601 and a limit ring 602 rotatably mounted on the hexagonal positioning block 7. The spray pipe 601 is fixed to the limit ring 602 by a screw 603. A rotating handwheel 604 is also installed on the limit ring 602, so that the spray pipe 601 can be detached from the limit ring 602, facilitating the replacement of different spray pipes 601.

[0051] Example 3:

[0052] Please continue to refer to Figures 1-9 , on the basis of Example 2, the gun body 1 is provided with a threaded hole 15 and a cross-shaped groove 16 concentric with the threaded hole 15. The end of the pipe joint 3 is located in the threaded hole 15 and is threadedly connected to the gun body 1. A cross-shaped limit block 11 is rotatably connected to the end of the pipe joint 3, and the cross-shaped limit block 11 is located in the cross-shaped groove 16. A limit hole 12 is transversely provided in the cross-shaped limit block 11. The gun body 1 is further provided with an electric push rod 10 and a control button 13. The electric push rod 10 is located inside the gun body 1, and its output end passes through the limit hole 12 and is clamped on the gun body 1. The control button 13 is electrically connected to the electric push rod 10. This structure enables the limit hole 12 to be aligned with the output end of the electric push rod 10 after the pipe joint 3 is installed, and the output end can be controlled to extend through the control button 13 and inserted into the cross-shaped limit block 11, which is not only more stable after installation, but also simpler to operate.

[0053] Working principle: During use, first insert the first protective tube 4 into the cylindrical inner cavity of the gun body 1, with its end having an external thread facing the output end of the gun body 1. The hexagonal positioning block 7 is located in the hexagonal positioning groove 8. Insert the second protective tube 5 onto the first protective tube 4, and insert the end of the short gun barrel 2 having an internal thread onto the cylindrical groove 9 on the gun body 1. Threadedly connect the short gun barrel 2 to the first protective tube 4 to make the short gun barrel 2 and the first protective tube 4 stably installed on the gun body 1. Align the cross-shaped limit block 11 on the pipe joint 3 with the cross-shaped groove 16 and insert it. When the external thread of the pipe joint 3 touches the threaded hole 15, rotate the pipe joint 3 until the cross-shaped limit block 11 abuts against the gun body. Press the control button 13 to make the output end of the electric push rod 10 pass through the limit hole 12 and abut against the gun body 1, then it can be used. During disassembly, the control button 13 causes the output end of the electric push rod 10 to contract, then the pipe joint 3 can be rotated to take it out, and the short gun barrel 2, the first protective tube 4, and the second protective tube 5 can be disassembled by rotating the short gun barrel 2. When it is necessary to replace different jet pipes 601, unscrew the screw 603, then the jet pipe 601 can be removed from the limit ring 602, and then other jet pipes 601 can be replaced.

[0054] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here. The content not described in detail in this specification belongs to the well-known prior art of those skilled in the art.

[0055] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0056] In the present utility model, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "connected to", "fixed" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0058] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. mean 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 utility model. In this specification, the schematic descriptions of the above terms do not have to be directed 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. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0059] In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0060] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A modular design cutting spray gun structure, including a gun body (1), a short gun barrel (2), a pipe joint (3) and a jet nozzle (6), the pipe joint (3) is threadedly connected to the gun body (1), characterized in that, It also includes a first protective tube (4) and a second protective tube (5). One end of the first protective tube (4) is fixed with a hexagonal positioning block (7); The gun body (1) is provided with a cylindrical inner cavity, and one end of the cylindrical inner cavity is provided with a hexagonal positioning groove (8), and the other end is provided with a cylindrical groove (9) with a diameter larger than the inner diameter of the inner cavity; The first protective tube (4) is arranged in the cylindrical inner cavity of the gun body (1), and the hexagonal positioning block (7) is located in the hexagonal positioning groove (8); The end of the short gun barrel (2) is located in the cylindrical groove (9), and the short gun barrel (2) is threadedly connected to the first protective tube (4) and fastened to the gun body (1); The second protective tube (5) is located in the short gun barrel (2), and both end faces are in contact with the short gun barrel (2) and the first protective tube (4) respectively; The jet nozzle (6) is rotatably connected in the hexagonal positioning block (7), and the end is located in the first protective tube (4).

2. The structure of a cutting spray gun with modular design according to claim 1, characterized in that: The first protective tube (4) includes a first tube body (401), and a slot (402) is also provided on the end face of the first tube body (401) with an external thread; The second protective tube (5) includes a second tube body (501), and an insertion ring (502) is provided at the end of the second tube body (501), and the insertion ring (502) is located in the slot (402).

3. The structure of a cutting spray gun with modular design according to claim 1, characterized in that: The jet nozzle (6) includes a jet pipe (601) and a limit ring (602) rotatably installed on the hexagonal positioning block (7), and the jet pipe (601) is fixed to the limit ring (602) by a screw (603).

4. A modular design cutting spray gun structure according to claim 2, characterized in that: A sealing ring (14) is also provided in the slot (402), and the sealing ring (14) is in close contact with the first tube body (401) and the insertion ring (502).

5. A modular design cutting spray gun structure according to claim 2, characterized in that: The inner diameters of both ends of the second tube body (501) are different. The inner diameter of the end close to the first tube body (401) is adapted to the first tube body (401), and the inner diameter of the end far from the first tube body (401) is adapted to the inner diameter of the end of the short gun barrel (2).

6. A modular design cutting spray gun structure according to claim 3, characterized in that: A rotating handwheel (604) is also installed on the limit ring (602).

7. A modular design cutting spray gun structure according to claim 4, characterized in that: The sealing ring (14) is made of rubber.

8. A modular design cutting spray gun structure according to claim 1, characterized in that: The gun body (1) is provided with a threaded hole (15) and a cross-shaped groove (16) concentric with the threaded hole (15). The end of the pipe joint (3) is located in the threaded hole (15) and is threadedly connected to the gun body (1); The end of the pipe joint (3) is rotatably connected with a cross-shaped limit block (11), and the cross-shaped limit block (11) is located in the cross-shaped groove (16). The cross-shaped limit block (11) is horizontally provided with a limit hole (12); The gun body (1) is also provided with an electric push rod (10) and a control button (13); The electric push rod (10) is located in the gun body (1), and its output end passes through the limit hole (12) and is clamped on the gun body (1); The control button (13) is electrically connected to the electric push rod (10).

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