A connection structure of a spray head of a spray gun

Abstract

The utility model relates to the technical field of spray head, disclose a kind of connecting structure of spray gun's spray head, including spray gun connecting piece, the spray gun connecting piece is connected with spray head connecting piece by communicating part, it is characterized by: the spray gun connecting piece is connected with the dialing component by a communicating part, the dialing component is used to switch the spray mode of spray gun, one end of the dialing component is connected with a spray head connecting piece by bolt, the bolt is used to prevent spray head connecting piece from separating from dialing component, the spray head connecting piece is used to be connected with spray head, the dialing component includes a rotating part, the utility model has structure stable, easy to operate, connecting mode is various, auxiliary installation is convenient and dialing component flexible assembly and so on Advantage, can significantly improve the use efficiency and convenience of spray gun, satisfy the different needs of user.

Description

Technical Field

[0001] This utility model relates to the technical field of nozzles, and specifically to a connection structure for the nozzle head of a spray gun. Background Technology

[0002] As a highly efficient painting tool, the spray gun plays a vital role in numerous fields and industries. It is widely used not only in traditional areas such as automotive repair, furniture finishing, and architectural decoration, but also demonstrates unique advantages in emerging applications such as artistic creation, model making, and fine craft painting. The spray gun provides a uniform coating, reduces material waste, and, through various nozzles and pressure adjustments, can achieve different spraying effects from smooth to rough. Furthermore, modern spray gun designs increasingly emphasize ergonomics and ease of operation, significantly reducing fatigue during extended work sessions. In industrial production, the high spraying speed and precise control of the spray gun improve production efficiency and shorten painting cycles. For personal use, the portability and ease of cleaning and maintenance of the spray gun allow users to easily complete various DIY projects. In short, with its excellent spraying performance, flexible operation, and wide applicability, the spray gun has become an indispensable tool in many fields.

[0003] Traditional nozzle and spray gun installation requires numerous auxiliary accessories such as sealing rings and locking nuts, making the process complicated. Careful control of the tightness of each component is essential to prevent leaks due to poor sealing. Furthermore, it demands a high level of operator expertise, is time-consuming, and is difficult to disassemble. Over time, rust and jamming can occur, requiring considerable effort and sometimes specialized tools to remove, and connections can easily be damaged. Maintenance is also challenging due to its complex structure, which easily accumulates dirt, making cleaning extremely inconvenient. Finding the root cause and repairing or replacing components in case of malfunction is also troublesome, increasing both operating and labor costs. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a connection structure for the nozzle of a spray gun. This connection structure for the nozzle of a spray gun has the advantages of stable structure, easy operation, various connection methods, convenient installation of auxiliary parts, and quick disassembly and assembly. It can significantly improve the efficiency and convenience of using the spray gun and meet the different needs of users.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A nozzle connection structure for a spray gun includes a spray gun connector, which is connected to a nozzle connector via a connecting member. The spray gun connector is connected to a speed adjustment assembly via a connecting member. The speed adjustment assembly is used to switch the spray mode of the spray gun. One end of the speed adjustment assembly is connected to a nozzle connector via a bolt, which is used to prevent the nozzle connector from disengaging from the speed adjustment assembly. The nozzle connector is used to connect to a nozzle. The speed adjustment assembly includes a rotating part.

[0006] The rotating part has at least one inner groove at one end, and the nozzle connector has at least one first locking block at one end, which is locked in the corresponding inner groove. The nozzle connector has an external thread at the other end, which is used to connect the nozzle. The rotating part and the nozzle connector are locked together by bolts.

[0007] One end of the rotating part is provided with an internal thread, and the outer surface of the nozzle connector is provided with an external thread. The nozzle connector is fixedly connected to the internal thread of the rotating part through the external thread, and the rotating part and the nozzle connector are locked together by bolts.

[0008] One end of the nozzle connector passes through the rotating part and is secured by bolts. An auxiliary component is also connected to the outer surface of the rotating part by a snap ring.

[0009] The outer surface of the rotating part is provided with at least one outer slot, and the inner side of the auxiliary part is provided with at least one second locking block, which is engaged in the corresponding outer slot.

[0010] The connecting member is inserted through the rotating part. One end of the connecting member is provided with a limiting part to prevent the rotating part from detaching from the connecting member. The other end of the connecting member is provided with a connecting part to be fixedly connected to the spray gun connecting member.

[0011] The gear adjustment assembly also includes a gear plate sequentially sleeved on the connecting member and a gear adjustment plate rotatably connected to one side of the gear plate. The gear plate is fixedly connected to the spray gun connector and the gear adjustment plate is fixed inside the rotating part and rotates with the rotating part.

[0012] The beneficial effects of this utility model are as follows: 1. By using the inner groove inside the rotating part and the first locking block outside the nozzle connector, one end of the nozzle connector is fitted into the rotating part, and the first locking block and the inner groove rotate to form an interlock, thereby making the installation of the spray gun and nozzle simple and quick.

[0013] 2. The external thread on the outer surface of the nozzle connector and the internal thread of the rotating part form a thread lock. After the thread lock between the rotating part and the nozzle connector is completed, it is also locked with bolts to enhance its stability. Therefore, when replacement and maintenance are required, the bolts can be unscrewed and the rotating part can be loosened and removed by rotating the nozzle connector. It is convenient and quick, and assembly is also simple.

[0014] 3. The nozzle connector is directly inserted into one end of the rotating part and then locked with bolts. Therefore, when replacement or maintenance is required, simply unscrew the bolts, and the nozzle connector can be loosened and removed from the rotating part, which is convenient and quick. Attached Figure Description

[0015] Figure 1 This is a perspective view of a specific embodiment 1 or 2 of this utility model.

[0016] Figure 2 This is an exploded structural diagram of the rotating part and the nozzle connection in a specific embodiment 1 of this utility model.

[0017] Figure 3 This is an exploded structural diagram of the rotating part and nozzle connection component of a specific embodiment 2 of this utility model.

[0018] Figure 4 This is a perspective view of a specific embodiment 3 of this utility model. Figure 5 This is an exploded structural diagram of the rotating part and the nozzle connection in specific embodiment 3 of this utility model.

[0019] Figure 6 This is an exploded view of some of the connecting parts of this utility model.

[0020] Explanation of icon numbers: 1-Spray gun connector, 2-Connecting part, 20-Limiting part, 21-Connecting part, 3-Nozzle connector, 30-First locking block, 31-External thread, 4-Adjusting assembly, 40-Rotating part, 400-Inner slot, 401-Inner thread, 402-Gate, 403-Outer slot, 5-Bolt, 6-Stop plate, 7-Adjusting plate, 8-Auxiliary part, 80-Second locking block, 9-Snap ring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings: Specific Implementation

[0022] like Figure 1-3As shown, a connection structure for a spray gun nozzle includes a spray gun connector 1, which is connected to a nozzle connector 3 via a connecting member 2. The spray gun connector 1 is connected to a speed adjustment assembly 4 via a connecting member 2. The speed adjustment assembly 4 is used to switch the spray mode of the spray gun. One end of the speed adjustment assembly 4 is connected to a nozzle connector 3 via a bolt 5. The bolt 5 is used to prevent the nozzle connector 3 from disengaging from the speed adjustment assembly 4. The nozzle connector 3 is used to connect to the nozzle. The speed adjustment assembly 4 includes a rotating part 40.

[0023] like Figure 1-3 As shown, at least one inner groove 400 is provided at one end of the rotating part 40, and at least one first locking block 30 is provided at one end of the nozzle connector 3. The first locking block 30 is locked in the corresponding inner groove 400. The other end of the nozzle connector 3 is provided with an external thread 31, which is used to connect the nozzle. The rotating part 40 and the nozzle connector 3 are locked together by bolts 5. The inner groove 400 is L-shaped (not shown). Its vertical section (not shown) is arranged along the same axis as the rotating part, and its horizontal section (not shown) is arranged circumferentially along the inner surface of the rotating part 40. When the first locking block 30 is inserted into the inner groove 400 to the bottom, it is rotated at a certain angle, and the first locking block 30 is locked into the horizontal section of the inner groove 400.

[0024] like Figure 1-3 As shown, the connecting member 2 is inserted through the rotating part 40. One end of the connecting member 2 is provided with a limiting part 20, which is used to prevent the rotating part 40 from disengaging from the connecting member 2. The other end of the connecting member 2 is provided with a connecting part 21, which is used to fix it to the spray gun connecting member 1.

[0025] like Figure 1-3 As shown, the gear adjustment assembly 4 also includes a gear plate 6 sequentially sleeved on the connecting member 2 and a gear adjustment plate 7 rotatably connected to one side of the gear plate. The gear plate 6 is fixedly connected to the spray gun connector 1, and the gear adjustment plate 7 is fixed inside the rotating part 40 and rotates synchronously with the rotating part 40.

[0026] Working Mechanism: First, the assembly begins with the spray gun connector. Second, the adjustment assembly is assembled as follows: a stop plate and an adjustment plate are sequentially inserted into the rotating part. When the adjustment assembly is assembled and inserted into the spray gun connector, the stop plate is fixedly connected to the spray gun connector, and the adjustment piece is fixedly connected to the rotating part. Next, the connecting piece passes through one end of the rotating part, sequentially passing through the rotating part, the adjustment piece, and the stop plate, and then connects to one end of the spray gun connector. Finally, the connection structure is assembled as follows: the first locking block of the nozzle connector engages with the inner groove of the rotating part to form an interlock. After the interlock between the rotating part and the nozzle connector is completed, it is further secured with bolts to enhance its stability. The inner groove is L-shaped. When the first locking block is inserted into the inner groove to the bottom, it is rotated at a certain angle, and the first locking block engages with the transverse section of the inner groove to complete the locking. Therefore, when replacement or maintenance is required, the bolts are unscrewed, and the nozzle connector can be removed by rotating it at a certain angle, which is convenient and quick. Assembly is also simple.

[0027] Specific Implementation 2: like Figure 1-3 As shown, the present invention discloses a nozzle connection structure for a spray gun. One end of the rotating part 40 is provided with an internal thread 401, and the outer surface of the nozzle connector 3 is provided with an external thread 31. The nozzle connector 3 is fixedly connected to the internal thread 401 of the rotating part 40 through the external thread 31. The rotating part 40 and the nozzle connector 3 are locked together by bolts 5. When the rotating part 40 is turned into the nozzle connector 3, so that the screw hole on the rotating part 40 matches the threaded hole on the nozzle connector, the bolts 5 are screwed in to fix it.

[0028] The working mechanism of this embodiment 2 is as follows: First, the spray gun connector is the starting point for assembly. Second, the adjustment component is composed as follows: a stop plate and an adjustment plate are sequentially inserted into the rotating part. When the adjustment component is assembled and inserted into the spray gun connector, the stop plate is fixedly connected to the spray gun connector, and the adjustment component is fixedly connected to the rotating part. Next, the connecting member passes through one end of the rotating part, and sequentially passes through the rotating part, the adjustment component, and the stop plate, and then connects to one end of the spray gun connector. Finally, the connection structure is composed as follows: the external thread on the outer surface of the nozzle connector and the internal thread of the rotating part form a thread lock. After the thread lock between the rotating part and the nozzle connector is completed, it is also locked by bolts to enhance its stability. Therefore, when replacement and maintenance are required, the bolts are unscrewed, and the rotating part can be loosened and removed by rotating the nozzle connector, which is convenient and quick. Assembly is also simple.

[0029] Technical features not explained in this specific embodiment will not be repeated here.

[0030] Specific implementation 3: like Figure 1-3As shown, the present invention discloses a nozzle connection structure for a spray gun. One end of the nozzle connector 3 passes through the rotating part 40 and is locked by a bolt 5. An auxiliary part 8 is also connected to the outer surface of the rotating part 40 by a retaining spring 9. The rotating part 40 is provided with a groove 402 that mates with the retaining spring 9. The nozzle connector 3 and the rotating part 40 are tightly connected. After the bolt 5 is locked in, the auxiliary part 8 is fitted onto the outer surface of the rotating part 40 to form a locked state.

[0031] like Figure 1-3 As shown, the outer surface of the rotating part 40 is provided with at least one outer slot 403, and the inner side of the auxiliary part 8 is provided with at least one second locking block 80, which is connected to the corresponding outer slot 403. When the nozzle connector 3 is fitted into the rotating part 40, the threaded hole on the nozzle connector 3 is matched with the threaded hole on the rotating part. After the bolt 5 is screwed in, the auxiliary part 8 is fitted onto the outer surface of the rotating part 40. The second locking block 80 provided on the auxiliary part 8 is locked into the outer slot 403 provided on the outer surface of the rotating part 40 to prevent the bolt from slipping.

[0032] The working mechanism of this embodiment 3 is as follows: First, the spray gun connector is used as the starting point for assembly. Second, the adjustment component is composed as follows: a stop plate and an adjustment plate are sequentially inserted into the rotating part. When the adjustment component is assembled and inserted into the spray gun connector, the stop plate is fixedly connected to the spray gun connector, and the adjustment component is fixedly connected to the rotating part. Next, the connecting member passes through one end of the rotating part, sequentially passing through the rotating part, the adjustment component, and the stop plate, and then connects to one end of the spray gun connector. Finally, the connection structure is composed as follows: the nozzle connector is directly inserted into one end of the rotating part and then locked with bolts. Therefore, when replacement and maintenance are required, the bolts are unscrewed, and the nozzle connector can be loosened and removed from the rotating part, which is convenient and quick.

[0033] Technical features not explained in this specific embodiment will not be repeated here.

[0034] It should be noted that in the description of this utility model, the terms "upper," "lower," "inner," "one end," "one side," "surface," or "one surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or a... The connection can be physical; it can be mechanical or electrical; it can be direct or indirect through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. In addition, the standard parts used in this utility model can all be purchased from the market. If irregular parts are involved, they can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as screws / bolts, hinged fasteners, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A connection structure for the nozzle of a spray gun, comprising a spray gun connector, the spray gun connector being connected to a nozzle connector via a communicating member, characterized in that: The spray gun connector is connected to the adjustment assembly via a connecting member. The adjustment assembly is used to switch the spray mode of the spray gun. One end of the adjustment assembly is connected to a nozzle connector via a bolt. The bolt is used to prevent the nozzle connector from disengaging from the adjustment assembly. The nozzle connector is used to connect to the nozzle. The adjustment assembly includes a rotating part.

2. The connection structure of the nozzle of a spray gun according to claim 1, characterized in that: The rotating part has at least one inner groove at one end, and the nozzle connector has at least one first locking block at one end, which is locked in the corresponding inner groove. The nozzle connector has an external thread at the other end, which is used to connect the nozzle. The rotating part and the nozzle connector are locked together by bolts.

3. The connection structure of the nozzle of a spray gun according to claim 1, characterized in that: One end of the rotating part is provided with an internal thread, and the outer surface of the nozzle connector is provided with an external thread. The nozzle connector is fixedly connected to the internal thread of the rotating part through the external thread, and the rotating part and the nozzle connector are locked together by bolts.

4. The connection structure of the nozzle of a spray gun according to claim 1, characterized in that: One end of the nozzle connector passes through the rotating part and is secured by bolts. An auxiliary component is also connected to the outer surface of the rotating part by a snap ring.

5. The connection structure of the nozzle of a spray gun according to claim 4, characterized in that: The outer surface of the rotating part is provided with at least one outer slot, and the inner side of the auxiliary part is provided with at least one second locking block, which is engaged in the corresponding outer slot.

6. The connection structure of the nozzle of a spray gun according to claim 1, characterized in that: The connecting member is inserted through the rotating part. One end of the connecting member is provided with a limiting part to prevent the rotating part from detaching from the connecting member. The other end of the connecting member is provided with a connecting part to be fixedly connected to the spray gun connecting member.

7. The connection structure of the nozzle of a spray gun according to claim 1, characterized in that: The gear adjustment assembly also includes a gear plate sequentially sleeved on the connecting member and a gear adjustment plate rotatably connected to one side of the gear plate. The gear plate is fixedly connected to the spray gun connector and the gear adjustment plate is fixed inside the rotating part and rotates with the rotating part.

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