A kind of country culture wall drawing spray gun

Abstract

The utility model relates to spray gun technical field, and disclose a kind of spray gun for rural culture wall drawing, it include: spray gun assembly, trigger, spray head, connecting piece and paint tank, trigger rotation setting in the outside of spray gun assembly, spray head is connected with the water outlet of spray gun assembly, the connecting piece is set in the water inlet outside of spray gun assembly, paint tank is connected with connecting piece by screw thread, the inner chamber of connecting piece two sides is respectively provided with vertical groove and locking groove, vertical groove is connected with locking groove, the outside two sides of paint tank are connected with locking block. The spray gun for rural culture wall drawing can meet the needs of frequently changing paint tank when culture wall drawing, press push rod to drive clamping arm to descend when disassembling, reverse rotation paint tank can be separated, without tool auxiliary, improve the convenience of use, without complex operation, suitable for outdoor culture wall drawing and other scenes that need frequent movement and operation, effectively improve the efficiency and convenience of drawing work.

Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, specifically a spray gun for painting rural cultural walls. Background Technology

[0002] In rural cultural wall painting, spray guns require frequent changes of different paint colors to achieve colorful patterns. Traditional spray gun paint can connection structures generally suffer from problems such as complex operation and poor sealing. Operators often need to use tools to tighten fasteners to install the can, and paint easily drips from the joints during disassembly, resulting in material waste and environmental pollution. In addition, traditional locking mechanisms are prone to loosening due to vibration in complex outdoor conditions, directly affecting the continuity and quality of the spraying operation.

[0003] Existing spray gun connection technologies mostly employ threaded connections or snap-fit ​​fixing methods. While threaded connections ensure sealing, repeated tightening is time-consuming and prone to thread wear; snap-fit ​​structures allow for quick assembly and disassembly, but lack an effective anti-loosening mechanism, making them susceptible to accidental detachment during equipment movement or external force during painting. More significantly, the paint delivery interface of traditional spray guns is directly exposed inside the tank. During disassembly, residual paint flows down the outer wall of the interface, not only contaminating the equipment surface but also potentially seeping into the mechanical structure, increasing maintenance difficulty. These problems are particularly pronounced in outdoor wall painting operations that require frequent paint tank changes, directly hindering construction efficiency and operational convenience. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a spray gun for painting rural cultural walls. While threaded connections ensure sealing, repeated tightening is time-consuming and prone to thread wear. Although snap-fit ​​structures allow for quick assembly and disassembly, they lack an effective anti-loosening mechanism, making them susceptible to accidental detachment during painting due to equipment movement or external force. More significantly, the paint delivery interface of traditional spray guns is directly exposed inside the tank. During disassembly, residual paint flows down the outer wall of the interface, not only contaminating the equipment surface but also potentially seeping into the mechanical structure, increasing maintenance difficulty. These problems are particularly pronounced in outdoor wall painting operations that require frequent paint tank replacements, directly hindering construction efficiency and operational convenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spray gun for painting rural cultural walls, comprising: a spray gun assembly, a trigger, a nozzle, a connector, and a paint tank. The trigger is rotatably disposed outside the spray gun assembly. The nozzle is connected to the water outlet of the spray gun assembly. The connector is disposed outside the water inlet of the spray gun assembly. The paint tank is threadedly connected to the connector. Vertical grooves and locking grooves are respectively provided on both sides of the inner cavity of the connector. The vertical grooves are connected to the locking grooves. Locking blocks are connected to both sides of the outer cavity of the paint tank. The locking blocks are slidably connected to the locking grooves. A locking mechanism is inserted into the inner cavity of the locking blocks.

[0006] When installing the paint can, align the locking block with the vertical slot and insert it. Then, rotate the paint can to allow the locking block to slide into the locking groove. At this point, the locking arm in the locking mechanism, under the action of the first spring, smoothly enters the slot at the top of the locking groove, thus achieving a secure lock between the paint can and the connector. For disassembly, press the push rod; the push rod, through the connecting rod, causes the locking arm to retract, disengaging it from the slot, allowing for quick and easy removal of the paint can. The installation and disassembly process of the paint can is more convenient and efficient, reducing the tedious operation of repeated tightening compared to traditional threaded connections. Simultaneously, the reliable locking function ensures that even if the spray gun is subjected to some shaking or external force during the painting of rural cultural walls, the paint can will not easily fall off, guaranteeing the continuity and stability of the painting work.

[0007] The locking mechanism includes a push rod, a connecting rod rotatably connected to the top of the push rod, and a locking arm rotatably connected to the other end of the connecting rod. The locking arm is inserted into the interior of the locking block. Assembly slots are provided on both sides of the interior of the paint can. The assembly slots are slidably connected to the push rod and the locking arm. A first spring is connected between the push rod and the assembly slot. A locking groove adapted to the locking arm is provided at the top of the inner cavity of the locking slot.

[0008] When the push rod is pressed, it slides down along the mounting groove. Through the transmission of the connecting rod, the locking arm rotates inward and retracts, thus disengaging from the slot. After the push rod is released, under the elastic restoring force of the first spring, the push rod returns to its original position, causing the locking arm to extend again and re-engage in the slot, thus realizing the locking and unlocking operation.

[0009] The locking mechanism, consisting of a push rod, connecting rod, and locking arm, is simple to operate and highly reliable. Locking and unlocking can be completed with a simple pressing action, greatly reducing the operator's workload and improving work efficiency. Meanwhile, the first spring ensures that the locking arm always maintains a secure locked position, preventing the paint can from loosening due to accidental contact.

[0010] Preferably, a second spring is connected to both outer sides of the clamping arm, and the second spring is connected to the inner cavity of the assembly groove.

[0011] During the movement of the clamping arm, the second spring always applies an outward pulling force to the clamping arm. When the clamping arm retracts, the second spring is stretched; when the clamping arm needs to extend and engage with the clamping slot, the pulling force of the second spring assists the first spring, enabling the clamping arm to enter the clamping slot more quickly and accurately.

[0012] The second spring further enhances the stability and reliability of the locking arm. In complex painting environments, even if the spray gun experiences significant vibration or external impact, the second spring ensures the locking arm will not easily disengage from its slot, effectively preventing accidental paint can detachment and guaranteeing safe painting operations. Simultaneously, the second spring assists in the locking arm's rapid reset, improving operational smoothness.

[0013] Preferably, the push rod is externally connected to a rubber plate, and the rubber plate has anti-slip texture on its outer surface.

[0014] When the operator presses the push rod to unlock the paint can, the hand comes into contact with the rubber plate. The rubber plate itself has good elasticity and softness, which can conform to the contour of the hand, and the anti-slip texture on its surface increases the friction between the hand and the rubber plate.

[0015] The rubber pad and anti-slip texture design greatly improve the comfort and accuracy of operators when pressing the push rod. Even during long periods of drawing work, when hands are sweaty, it ensures that operators can press the push rod steadily and easily, avoiding operational errors due to slippage, thus improving ease of use and safety.

[0016] Preferably, the inner cavity of the paint tank is equipped with a suction tube, and the top of the suction tube is connected to the water inlet of the spray gun assembly.

[0017] When the spray gun is in operation, a negative pressure is created inside the spray gun assembly. Under atmospheric pressure, the paint in the paint tank is drawn into the spray gun assembly through the suction tube and finally sprayed out from the nozzle. As paint is used, the paint level in the paint tank drops, but thanks to the suction tube, paint can always be smoothly drawn out.

[0018] The suction tube ensures that the paint in the paint can be fully utilized, preventing situations where the paint level is too low to draw out, thus improving paint utilization. Simultaneously, the stable paint delivery process ensures that the nozzle can continuously and evenly spray paint, resulting in a more uniform and aesthetically pleasing finish on the rural cultural wall, thus enhancing the overall quality of the artwork.

[0019] Preferably, the spray gun assembly is provided with a hook on the outside, and the hook is provided with an anti-wear pad on the outside.

[0020] During breaks in painting work, operators can suspend the spray gun in designated locations, such as scaffolding or hooks, using hooks. Abrasion pads provide cushioning and protection when the hooks come into contact with the suspended object.

[0021] The hook design facilitates the storage and retrieval of the spray gun, saves space, and prevents damage caused by careless placement. The anti-abrasion pad effectively prevents wear and tear between the hook and the suspended object, extending the hook's lifespan, ensuring stable long-term performance, and reducing the risk of the spray gun falling due to hook damage.

[0022] Preferably, the paint can is fitted with a protective sleeve, and the outer surface of the protective sleeve has striped patterns.

[0023] The protective sleeve fits snugly over the paint can, providing physical protection. The textured pattern increases the surface roughness of the sleeve, ensuring the operator's hand comes into contact with it when holding the spray gun.

[0024] The protective sleeve effectively prevents paint cans from being damaged by external forces such as collisions and scratches, protecting the integrity of the paint cans and extending their service life. At the same time, the striped pattern design increases friction when gripping, allowing operators to hold the spray gun more stably during long painting sessions, reducing hand fatigue and improving the efficiency and quality of painting work.

[0025] Compared with the prior art, this utility model provides a spray gun for painting rural cultural walls, which has the following beneficial effects:

[0026] This spray gun for painting rural cultural walls features a unique structural design for the connectors and paint can, enabling convenient installation and disassembly of both. Inserting the locking block into the vertical slot and rotating it 90 degrees allows the locking block to engage with the locking groove. Simultaneously, the locking arm automatically engages with the groove under the action of the first spring, completing the fixation. The operation is simple and efficient, meeting the needs of frequent paint can changes during cultural wall painting. Disassembly is achieved by pressing the push rod to lower the locking arm, and then rotating the paint can in the opposite direction to separate it. No tools are required, further enhancing ease of use.

[0027] The spray gun used for painting rural cultural walls has a connection structure between the connector and the paint tank that prevents the water inlet of the spray gun assembly from directly contacting the paint, thus preventing paint from adhering to the outside of the water inlet. This solves the problem of paint dripping from the water inlet when connecting or disconnecting the paint tank with traditional spray guns, reducing paint waste and equipment pollution, helping to maintain a clean working environment, and reducing the workload of subsequent cleaning and maintenance.

[0028] This spray gun for rural cultural wall painting features a locking mechanism with a linkage design between the push rod, connecting rod, and locking arm. Combined with the reset action of the first spring, this creates a reliable locking structure between the locking arm and the locking slot, ensuring the paint can will not loosen or fall off due to shaking or external force during use, thus improving the stability of the spray gun during operation. Automatic locking and unlocking via mechanical linkage eliminates the need for complex operations, making it suitable for outdoor cultural wall painting and other scenarios requiring frequent movement and operation, effectively improving the efficiency and convenience of the painting work. Attached Figure Description

[0029] Figure 1 This is a front view of the present utility model;

[0030] Figure 2 This is a schematic diagram showing the connection between the paint can and the connector of this utility model;

[0031] Figure 3 This is a schematic diagram showing the paint can and connector of this utility model disassembled;

[0032] Figure 4 This is an external schematic diagram of the locking mechanism of this utility model.

[0033] In the diagram: 1. Spray gun assembly; 2. Trigger; 3. Nozzle; 4. Connector; 41. Vertical groove; 42. Locking groove; 5. Paint tank; 51. Locking block; 52. Suction tube; 6. Locking mechanism; 61. Push rod; 62. First spring; 63. Connecting rod; 64. Clamping arm; 65. Second spring. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 A spray gun for painting rural cultural walls includes: a spray gun assembly 1, a trigger 2, a nozzle 3, a connector 4, and a paint tank 5. The trigger 2 is rotatably disposed outside the spray gun assembly 1. The nozzle 3 is connected to the water outlet of the spray gun assembly 1. The connector 4 is disposed outside the water inlet of the spray gun assembly 1. The paint tank 5 is threadedly connected to the connector 4. Vertical grooves 41 and locking grooves 42 are respectively opened on both sides of the inner cavity of the connector 4. The vertical grooves 41 and locking grooves 42 are connected. Locking blocks 51 are connected to both sides of the outer cavity of the paint tank 5. The locking blocks 51 are slidably connected to the locking grooves 42. A locking mechanism 6 is inserted into the inner cavity of the locking blocks 51.

[0036] Please see Figure 3 and Figure 4 When installing the paint can 5, align the locking block 51 with the vertical groove 41 and insert it. Then rotate the paint can 5 so that the locking block 51 slides along the vertical groove 41 into the locking groove 42. At this time, under the action of the first spring 62, the locking arm 64 in the locking mechanism 6 can smoothly enter the slot at the top of the locking groove 42, thereby achieving a stable lock between the paint can 5 and the connecting piece 4. When disassembling, press the push rod 61. The push rod 61 drives the locking arm 64 to retract through the connecting rod 63, causing it to disengage from the slot, making it easy and quick to remove the paint can 5.

[0037] The installation and removal of paint can 5 is more convenient and efficient, reducing the tedious operation of repeated tightening compared to traditional threaded connections. Meanwhile, the reliable locking function ensures that even if the spray gun is subjected to some shaking or external force during the painting of rural cultural walls, paint can 5 will not easily fall off, guaranteeing the continuity and stability of the painting work.

[0038] The locking mechanism 6 includes a push rod 61, with a connecting rod 63 rotatably connected to the top of the push rod 61. A locking arm 64 is rotatably connected to the other end of the connecting rod 63. The locking arm 64 is inserted into the interior of the locking block 51. Assembly slots are provided on both sides of the interior of the paint tank 5. These assembly slots are slidably connected to the push rod 61 and the locking arm 64. A first spring 62 connects the push rod 61 to the assembly slot. A locking groove adapted to the locking arm 64 is provided at the top of the inner cavity of the locking groove 42. When the push rod 61 is pressed, it slides downwards along the assembly slot. Through the transmission of the connecting rod 63, the locking arm 64 rotates inwards and retracts, thus disengaging from the locking groove. After the push rod 61 is released, under the elastic restoring force of the first spring 62, the push rod 61 resets, causing the locking arm 64 to extend again and re-engage in the locking groove, thus realizing the locking and unlocking operation.

[0039] The locking mechanism 6, consisting of push rod 61, connecting rod 63, and locking arm 64, is simple to operate and highly reliable. Locking and unlocking can be completed with a simple pressing action, greatly reducing the workload of operators and improving work efficiency. At the same time, the first spring 62 ensures that the locking arm 64 always maintains a secure locked state, preventing the paint tank 5 from becoming loose due to accidental contact.

[0040] The outer sides of the clamping arm 64 are each connected to a second spring 65, and the second spring 65 is connected to the inner cavity of the assembly groove.

[0041] During the movement of the clamping arm 64, the second spring 65 always applies an outward pulling force to the clamping arm 64. When the clamping arm 64 retracts, the second spring 65 is stretched; when the clamping arm 64 needs to extend and engage with the slot, the pulling force of the second spring 65 assists the first spring 62, enabling the clamping arm 64 to enter the slot more quickly and accurately.

[0042] The second spring 65 further enhances the stability and reliability of the locking arm 64. In complex painting environments, even if the spray gun is subjected to significant vibration or external impact, the second spring 65 ensures that the locking arm 64 will not easily dislodge from the slot, effectively preventing the paint can 5 from accidentally falling off and ensuring the safe execution of the painting work. Simultaneously, the second spring 65 also assists the locking arm 64 in quickly resetting, improving the smoothness of operation.

[0043] The push rod 61 is externally connected to a rubber plate, and the rubber plate has anti-slip texture on its outer surface.

[0044] When the operator presses the push rod 61 to unlock the paint tank 5, the hand comes into contact with the rubber plate. The rubber plate itself has good elasticity and softness, which can conform to the contour of the hand, and the anti-slip texture on its surface increases the friction between the hand and the rubber plate.

[0045] The rubber pad and anti-slip texture design greatly improve the comfort and accuracy of the operator when pressing the push rod 61. Even during long periods of drawing work, when hands are sweaty, it ensures that the operator can press the push rod 61 steadily and easily, avoiding operational errors due to hand slippage, thus improving the convenience and safety of use.

[0046] The inner cavity of the paint tank 5 is equipped with a suction tube 52, and the top of the suction tube 52 is connected to the water inlet of the spray gun assembly 1.

[0047] When the spray gun is in operation, a negative pressure is created inside the spray gun assembly 1. Under the action of atmospheric pressure, the paint in the paint tank 5 is drawn into the spray gun assembly 1 through the suction tube 52 and finally sprayed out from the nozzle 3. As the paint is used continuously, the paint level in the paint tank 5 drops, but due to the design of the suction tube 52, the paint can always be smoothly drawn out.

[0048] The suction tube 52 ensures that the paint in the paint tank 5 can be fully utilized, avoiding situations where the paint level in the paint tank 5 is too low to draw out, thus improving the utilization rate of the paint. At the same time, the stable paint delivery process ensures that the nozzle 3 can continuously and evenly spray paint, resulting in a more uniform and beautiful painting effect on the rural cultural wall, and improving the painting quality.

[0049] The spray gun assembly 1 has a hook on the outside, and the hook has an anti-abrasion pad on the outside.

[0050] During breaks in painting work, operators can suspend the spray gun in designated locations, such as scaffolding or hooks, using hooks. Abrasion pads provide cushioning and protection when the hooks come into contact with the suspended object.

[0051] The hook design facilitates the storage and retrieval of the spray gun, saves space, and prevents damage caused by careless placement. The anti-abrasion pad effectively prevents wear and tear between the hook and the suspended object, extending the hook's lifespan, ensuring stable long-term performance, and reducing the risk of the spray gun falling due to hook damage.

[0052] The paint can 5 is fitted with a protective sleeve, and the outer surface of the protective sleeve has striped patterns.

[0053] The protective sleeve fits snugly over the outside of the paint can 5, providing physical protection. The striped texture increases the roughness of the protective sleeve's surface, ensuring that the operator's hand comes into contact with the sleeve when holding the spray gun.

[0054] The protective sleeve effectively prevents paint can 5 from being damaged by external forces such as collisions and scratches, protecting the integrity of paint can 5 and extending its service life. At the same time, the striped texture design increases the friction when gripping, allowing operators to hold the spray gun more stably during long painting sessions, reducing hand fatigue and improving the efficiency and quality of painting work.

[0055] This design first inserts the locking block 51 into the inner cavity of the vertical groove 41, then rotates it 90 degrees to make the locking block 51 engage with the inside of the locking groove 42. At this time, the locking arm 64 will enter the inside of the groove, thereby fixing the paint tank 5 and the connector 4. When it is necessary to separate the paint tank 5 and the connector 4, the push rod 61 is pressed, and the driving rod 63 drives the locking arm 64 to descend. Then, the paint tank 5 is rotated in the opposite direction, and the locking block 51 slides out from the inside of the vertical groove 41, finally releasing the connection between the paint tank 5 and the connector 4. Through the design of the paint tank 5 and the connector 4, the water inlet of the spray gun assembly 1 is prevented from directly connecting with the paint inside the paint tank 5, which would cause paint to adhere to the outside of the water inlet. Paint is also prevented from dripping from the water inlet of the spray gun assembly 1 when the connector 4 and the paint tank 5 are disconnected.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray gun for painting rural cultural walls, comprising: The spray gun assembly (1), trigger (2), nozzle (3), connector (4) and paint tank (5) are provided. The trigger (2) is rotatably disposed outside the spray gun assembly (1). The nozzle (3) is connected to the outlet of the spray gun assembly (1). The connector (4) is disposed outside the inlet of the spray gun assembly (1). The paint tank (5) is threadedly connected to the connector (4). The connector (4) has vertical grooves (41) and locking grooves (42) respectively opened on both sides of its inner cavity. The vertical grooves (41) and locking grooves (42) are connected. Locking blocks (51) are connected to both sides of the outer surface of the paint tank (5). The locking blocks (51) are slidably connected to the locking grooves (42). A locking mechanism (6) is inserted into the inner cavity of the locking blocks (51). The locking mechanism (6) includes a push rod (61), the top of which is rotatably connected to a connecting rod (63), and the other end of the connecting rod (63) is rotatably connected to a locking arm (64). The locking arm (64) is inserted into the interior of the locking block (51). The paint can (5) has assembly slots on both sides inside. The assembly slots are slidably connected to the push rod (61) and the locking arm (64). A first spring (62) is connected between the push rod (61) and the assembly slot. The top of the inner cavity of the locking groove (42) has a slot that matches the locking arm (64).

2. The spray gun for painting rural cultural walls according to claim 1, characterized in that: The outer sides of the clamp arm (64) are each connected to a second spring (65), and the second spring (65) is connected to the inner cavity of the assembly groove.

3. The spray gun for painting rural cultural walls according to claim 1, characterized in that: The push rod (61) is externally connected to a rubber plate, and the rubber plate has anti-slip texture on its exterior.

4. The spray gun for painting rural cultural walls according to claim 1, characterized in that: The inner cavity of the paint tank (5) is equipped with a suction tube (52), and the top of the suction tube (52) is connected to the water inlet of the spray gun assembly (1).

5. The spray gun for painting rural cultural walls according to claim 1, characterized in that: The spray gun assembly (1) is provided with a hook on the outside, and an anti-wear pad is provided on the outside of the hook.

6. The spray gun for painting rural cultural walls according to claim 1, characterized in that: The paint can (5) is fitted with a protective sleeve, and the outer side of the protective sleeve has striped patterns.

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