A spray gun with adjustable spray angle

Abstract

The utility model relates to the technical field of injection gun, and disclose a kind of injection gun of adjustable injection angle, including injection gun main part, the bottom fixed mounting of injection gun main part has water inlet pipe, the left side fixed mounting of injection gun main part has first installation pipe, the left side of first installation pipe is provided with adjusting pipe mechanism, the outside of first installation pipe is provided with the support mechanism connected with adjusting pipe mechanism, the front side of support mechanism is provided with the limiting mechanism extending to its inside and being connected with adjusting pipe mechanism, the left side of adjusting pipe mechanism is provided with spray head mechanism, the outside of adjusting pipe mechanism is provided with the fixed mechanism extending to the inside of spray head mechanism, this injection gun of adjustable injection angle, by setting adjusting pipe mechanism, support mechanism, limiting mechanism, spray head mechanism and fixed mechanism, the purpose of easy fixation after adjustment is realized, the purpose of detachable spray head is realized.

Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, specifically a spray gun with an adjustable spray angle. Background Technology

[0002] A search revealed Chinese Patent Publication No. CN216704810U, which discloses an oil tank cleaning gun with adjustable spray angle. The gun includes a cleaning gun body. This invention uses a rotating disc to cause a rotating sleeve to rotate on the surface of a fixed sleeve. A fixing bolt is then tightened to limit and fix the rotating sleeve, allowing the user to easily adjust the device's rotation. However, the existing technology has the following drawbacks: adjustment and fixing via nuts and bolts is prone to loss, and loosening over time can affect the stability of angle adjustment. Furthermore, the nozzle is difficult to disassemble; a drop during use can damage the nozzle, and the inconvenience of disassembly makes replacement difficult. Therefore, this invention proposes a spray gun with an adjustable spray angle to solve these problems. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a spray gun with an adjustable spray angle, which has the advantages of easy fixing after adjustment and detachable nozzle, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above-mentioned purpose of easy fixation after adjustment and detachable nozzle, this utility model provides the following technical solution: an adjustable spray gun, including a spray gun body, a water inlet pipe fixedly installed at the bottom of the spray gun body, a first mounting pipe fixedly installed on the left side of the spray gun body, an adjustment pipe mechanism provided on the left side of the first mounting pipe, a support mechanism connected to the adjustment pipe mechanism provided on the outer side of the first mounting pipe, a limiting mechanism extending to its inner side and connected to the adjustment pipe mechanism provided on the front side of the support mechanism, a nozzle mechanism provided on the left side of the adjustment pipe mechanism, and a fixing mechanism extending to the inner side of the nozzle mechanism provided on the outer side of the adjustment pipe mechanism;

[0007] The adjusting tube mechanism includes a flexible tube. A flexible tube is fixedly installed on the left side of the first mounting tube. A connecting tube is movably installed on the left side of the flexible tube. A second mounting tube is movably installed on the left side of the connecting tube. Connecting plates are fixedly installed on both the front and rear sides of the connecting tube. A support rod is fixedly installed on the rear side of the rear connecting plate. Rotating rods are fixedly installed on the opposite sides of the two connecting plates.

[0008] Preferably, the support mechanism includes an outer frame, an outer frame extending to the outside of the hose is fixedly installed on the outside of the first mounting tube, mounting plates are fixedly installed on both the front and rear sides of the outer frame, a circular plate that fits against the outer frame is fixedly installed on the left side of the mounting plate, an arc-shaped hole is opened in the inside of the circular plate, one end of the support rod extends to the inside of the arc-shaped hole on the rear side, and the two rotating rods are rotatably connected to the two circular plates respectively.

[0009] Preferably, the limiting mechanism includes a U-shaped plate, with a U-shaped plate slidably mounted on the front side of the front circular plate extending to its rear side. A telescopic spring fixedly connected to the rear side of the inner wall of the U-shaped plate is fixedly mounted on the rear side of the circular plate. A D-shaped plate that fits against the front side of the circular plate is fixedly mounted on the front side of the U-shaped plate. A handle is fixedly mounted on the front side of the D-shaped plate. A stabilizing block that penetrates and extends to the rear side of the circular plate is fixedly mounted on the rear side of the D-shaped plate. A locking rod with a penetrating arc-shaped hole is fixedly mounted on the rear side of the D-shaped plate. The number of locking rods is seven and they are evenly distributed in a ring. The middle locking rod extends to the inner side of the front connecting plate.

[0010] Preferably, the nozzle mechanism includes a nozzle body, and the nozzle body extending to the left side is movably mounted on the outer side of the second mounting tube. The top and bottom of the nozzle body are fixedly mounted with fixing frames.

[0011] Preferably, the fixing mechanism includes a rectangular block. A rectangular block located on the right side of the nozzle body is fixedly installed on the outer side of the second mounting tube. The rectangular block has two rectangular holes located on the upper and lower sides of the second mounting tube, respectively. Movable plates extending to the front and rear sides of the rectangular block are slidably installed on the inner side of the rectangular holes. Connecting rods are fixedly installed on opposite sides of the two movable plates. A pressure block extending to the outer side of the rectangular block is fixedly installed at one end of the connecting rod. A return spring fixedly connected to the inner wall of the rectangular hole is fixedly installed on one side of the movable plate. Lifting plates extending to the outer side of the rectangular holes are fixedly installed on opposite sides of the two movable plates. One end of the lifting plate extends to the inner side of the fixing frame. A wedge block extending to the outer side of the fixing frame is fixedly installed on one side of the lifting plate.

[0012] Preferably, the inner wall of the fixing frame near the rectangular block is designed to be open, and the inner wall of the fixing frame is provided with a card hole that matches the wedge block. The front and rear sides of the rectangular block are provided with strip holes that communicate with the inner wall of the rectangular hole. The size of the strip holes is adapted to the moving trajectory of the moving plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a spray gun with an adjustable spray angle, which has the following beneficial effects:

[0015] This adjustable spray gun features an adjustment tube mechanism, a support mechanism, a limiting mechanism, a nozzle mechanism, and a fixing mechanism. A flexible hose serves as a connecting element, with its two ends connected to a first mounting tube and a connecting tube, respectively. Rotating rods on the front and rear sides of the connecting tube are embedded in a circular plate, forming a rotation axis. When the support rod slides along the arc-shaped hole, the rotating rod rotates within the circular plate, causing the connecting tube and the second mounting tube to deflect around the axis, thus adjusting the spray angle vertically. A U-shaped plate is elastically connected to the circular plate via a telescopic spring. A locking rod on the rear side of the D-shaped plate can be inserted into the front connecting plate. When the handle is pulled on the D-shaped plate, the locking rod disengages from its original slot and compresses the telescopic spring. The handle is released after the support rod slides to the target angle. The handle, when the telescopic spring returns to its original position, allows the new locking rod to engage in the slot, fixing the current angle of the second mounting tube and achieving convenient fixation after adjustment. Secondly, during nozzle body installation, when the nozzle body is fitted into the second mounting tube, the fixing frame presses against the inclined surface of the wedge block, forcing the lifting plate to compress the return spring. When the wedge block moves to the locking hole position, the return spring pushes the moving plate and the lifting plate to return to their original positions, pushing the wedge block into the locking hole, thus locking the nozzle body. When damage occurs and replacement is needed, pressing the pressure block moves the connecting rod inward, causing the moving plate to stretch the return spring, and the lifting plate moves synchronously, disengaging the wedge block from the locking hole, allowing the nozzle body to be freely removed, thus achieving the purpose of nozzle detachability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0017] Figure 2 This is an exploded cross-sectional view of a portion of the structure of this utility model;

[0018] Figure 3 This is a rear sectional perspective view of a partial structure of this utility model;

[0019] Figure 4 This is a rear perspective view of a partial structure of the present invention;

[0020] Figure 5 This is a partial sectional perspective view of the present invention;

[0021] Figure 6 This is an exploded cross-sectional view of a portion of the structure of this utility model.

[0022] In the diagram: 1. Spray gun body, 2. Water inlet pipe, 3. First mounting pipe, 4. Adjustment pipe mechanism, 41. Hose, 42. Connecting pipe, 43. Second mounting pipe, 44. Connecting plate, 45. Support rod, 46. Rotating rod, 5. Support mechanism, 51. Outer frame, 52. Mounting plate, 53. Circular plate, 54. Arc hole, 6. Limiting mechanism, 61. U-shaped plate, 62. Telescopic spring, 63. D-shaped plate, 65. Stabilizing block, 66. Locking rod, 7. Nozzle mechanism, 71. Nozzle body, 72. Fixing frame, 8. Fixing mechanism, 81. Rectangular block, 82. Rectangular hole, 83. Moving plate, 84. Connecting rod, 85. Pressure block, 86. Reset spring, 87. Lifting plate, 88. Wedge block. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 This utility model provides a technical solution: an adjustable spray gun, including a spray gun body 1, a water inlet pipe 2 fixedly installed at the bottom of the spray gun body 1, connected to an external water source, such as a water pump or water tank, to introduce water into the spray gun body 1, a first mounting pipe 3 fixedly installed on the left side of the spray gun body 1, an adjusting pipe mechanism 4 provided on the left side of the first mounting pipe 3, a support mechanism 5 connected to the adjusting pipe mechanism 4 provided on the outside of the first mounting pipe 3, a limiting mechanism 6 extending to its inner side and connected to the adjusting pipe mechanism 4 provided on the front side of the support mechanism 5, a nozzle mechanism 7 provided on the left side of the adjusting pipe mechanism 4, and a fixing mechanism 8 extending to the inner side of the nozzle mechanism 7 provided on the outside of the adjusting pipe mechanism 4.

[0025] The regulating pipe mechanism 4 includes a hose 41. The hose 41 is fixedly installed on the left side of the first mounting pipe 3, flexibly connecting the first mounting pipe 3 and the connecting pipe 42. This allows the connecting pipe 42 to deflect during angle adjustment while maintaining water flow sealing. It must have high elasticity, wear resistance, and anti-aging properties. The connecting pipe 42 is movably installed on the left side of the hose 41. It has a hollow design to reduce water flow resistance, and quick connectors at both ends facilitate maintenance. The second mounting pipe 43 is movably installed on the left side of the connecting pipe 42. Connecting plates 44 are fixedly installed on both the front and rear sides of the connecting pipe 42. A support rod 45 is fixedly installed on the rear side of the rear connecting plate 44. When sliding along the arc-shaped hole 54, it drives the connecting pipe 42 to deflect around the axis of the rotating rod 46. Rotating rods 46 are fixedly installed on the opposite sides of the two connecting plates 44. The rotation of the rotating rods 46 converts linear motion into angular deflection, thereby achieving spray direction adjustment.

[0026] The support mechanism 5 includes an outer frame 51. An outer frame 51 extending to the outside of the hose 41 is fixedly installed on the outside of the first mounting tube 3. Mounting plates 52 are fixedly installed on both the front and rear sides of the outer frame 51. A circular plate 53 that fits against the outer frame 51 is fixedly installed on the left side of the mounting plate 52. An arc-shaped hole 54 is opened inside the circular plate 53. The hole diameter needs to be slightly larger than the diameter of the support rod 45 and the clamping rod 66 to reduce friction. One end of the support rod 45 extends to the inside of the arc-shaped hole 54 on the rear side. Two rotating rods 46 are rotatably connected to the two circular plates 53 respectively.

[0027] The limiting mechanism 6 includes a U-shaped plate 61. A U-shaped plate 61 extending to the rear side of the front circular plate 53 is slidably installed on the front side of the front circular plate 53. A telescopic spring 62 fixedly connected to the rear side of the circular plate 53 is fixedly installed on the rear side of the inner wall of the U-shaped plate 61. A D-shaped plate 63 that fits against the front side of the circular plate 53 is fixedly installed on the front side of the D-shaped plate 63. A handle 64 is fixedly installed on the front side of the D-shaped plate 63. The surface of the handle 64 is treated with anti-slip. A stabilizing block 65 that penetrates and extends to the rear side of the circular plate 53 is fixedly installed on the rear side of the D-shaped plate 63. A locking rod 66 that penetrates the arc-shaped hole 54 is fixedly installed on the rear side of the D-shaped plate 63. The spacing of the locking rods 66 determines the angle adjustment accuracy. A circular groove that matches the locking rod 66 is opened on the front side of the front connecting plate 44. There are seven locking rods 66, which are distributed in a ring at equal intervals. The middle locking rod 66 extends to the inner side of the front connecting plate 44.

[0028] The nozzle mechanism 7 includes a nozzle body 71. The nozzle body 71 extending to the left side is movably installed on the outside of the second mounting pipe 43, which transforms the water flow into a specific spray pattern, such as a cone or a fan, to adapt to different scene requirements. It can be replaced with a fan-shaped nozzle, a rotating nozzle, or an atomizing nozzle to expand the function of the equipment. The top and bottom of the nozzle body 71 are fixedly installed with a fixing frame 72, which cooperates with the wedge block 88 of the fixing mechanism 8 to realize quick disassembly and assembly of the nozzle.

[0029] The inner wall of the fixed frame 72 near the rectangular block 81 is designed to be open. The inner wall of the fixed frame 72 is provided with a card hole that matches the wedge block 88. The front and rear sides of the rectangular block 81 are provided with strip holes that communicate with the inner wall of the rectangular hole 82. The size of the strip holes is adapted to the movement trajectory of the moving plate 83.

[0030] The fixing mechanism 8 includes a rectangular block 81. A rectangular block 81 located on the right side of the nozzle body 71 is fixedly installed on the outside of the second mounting tube 43. The rectangular block 81 has two rectangular holes 82 located on the upper and lower sides of the second mounting tube 43, respectively. The rectangular holes 82 provide sliding tracks for the moving plates 83. Moving plates 83 extending to the front and rear sides of the rectangular block 81 are slidably installed on the inside of the rectangular holes 82. Connecting rods 84 are fixedly installed on opposite sides of the two moving plates 83. A pressure block 85 extending to the outside of the rectangular block 81 is fixedly installed at one end of the connecting rod 84. A reset spring 86 fixedly connected to the inner wall of the rectangular hole 82 is fixedly installed on one side of the moving plate 83. The stiffness coefficient needs to match the weight of the nozzle to ensure that the wedge block 88 can be reliably engaged. Lifting plates 87 extending to the outside of the rectangular holes 82 are fixedly installed on opposite sides of the two moving plates 83. One end of the lifting plate 87 extends to the inside of the fixing frame 72. A wedge block 88 extending to the outside of the fixing frame 72 is fixedly installed on one side of the lifting plate 87.

[0031] In use, pull the D-shaped plate 63 forward with the handle 64 to disengage the locking rod 66 from its current slot. Simultaneously, the telescopic spring 62 is compressed. Adjust the connecting tube 42 up and down to allow the support rod 45 to slide along the arc-shaped hole 54. The rotating rod 46 rotates within the circular plate 53, causing the second mounting tube 43 to deflect to the target angle. Release the handle 64, and the telescopic spring 62 returns to its original position, pushing the D-shaped plate 63 backward. The locking rod 66 then engages in the corresponding slot, fixing the current angle. Press both pressure blocks 85 simultaneously with both hands. The connecting rod 84 moves the moving plate 83 outward, compressing the return spring 86 and disengaging the wedge block 88. The nozzle body 71 can be removed by pulling outwards from the locking hole of the fixed frame 72. The nozzle body 71 is then inserted into the second mounting tube 43. The fixed frame 72 presses against the inclined surface of the wedge block 88, forcing the lifting plate 87 to retract into the rectangular hole 82. When the fixed frame 72 moves to the point where the locking hole aligns with the wedge block 88, the return spring 86 pushes the wedge block 88 into the locking hole, completing the installation. When replacing the nozzle, it is necessary to ensure that the size of the fixed frame 72 of the nozzle body 71 matches the rectangular block 81; otherwise, the wedge block 88 cannot be locked into the locking hole. Holding the spray gun body 1, connect the water inlet pipe 2 to the water source, and the spray gun can be used.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] In summary, this adjustable spray angle spray gun, through the setting of an adjustment tube mechanism 4, a support mechanism 5, a limiting mechanism 6, a nozzle mechanism 7, and a fixing mechanism 8, uses a flexible hose 41 as a flexible connector, with its two ends connected to the first mounting tube 3 and the connecting tube 42 respectively. The rotating rods 46 on the front and rear sides of the connecting tube 42 are embedded in the circular plate 53, forming a rotation axis. When the support rod 45 slides along the arc-shaped hole 54, the rotating rod 46 rotates within the circular plate 53, causing the connecting tube 42 and the second mounting tube 43 to deflect around the axis. The U-shaped plate 61 is elastically connected to the circular plate 53 via a telescopic spring 62. The locking rod 66 on the rear side of the D-shaped plate 63 can be inserted into the front connecting plate 44. When the handle 64 pulls the D-shaped plate 63, the locking rod 66 disengages from its original slot and compresses the telescopic spring 62. After the support rod 45 slides to the target angle, the handle 64 is released, and the telescopic spring 62 returns to its original position, allowing the new locking rod 66 to engage in the slot, thus fixing the current angle of the second mounting tube 43. This achieves the goal of easy fixation after adjustment. Secondly, during the installation of the nozzle body 71, when the nozzle body 71 is fitted into the second mounting tube 43, the fixing frame 72 presses the inclined surface of the wedge block 88, forcing the lifting plate 87 to compress the return spring 86. When the wedge block 88 moves to the locking position, the return spring 86 pushes the moving plate 83 and the lifting plate 87 to reset, pushing the wedge block 88 into the locking hole, thus locking the nozzle body 71. When damage occurs and replacement is needed, pressing the pressure block 85 drives the connecting rod 84 to move inward, causing the moving plate 83 to stretch the return spring 86, and the lifting plate 87 to move synchronously. The wedge block 88 disengages from the locking hole, and the nozzle body 71 can be freely removed, achieving the purpose of detachable nozzle. This solves the problem of easy loss of nuts and bolts when adjusting and fixing by means of nuts and bolts, which inevitably leads to loosening after long-term use, thus affecting the stability of angle adjustment. In addition, the nozzle is not easy to disassemble, and if it is dropped during use, it will be damaged. The inconvenience of disassembly makes replacement difficult.

[0034] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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. An adjustable spray gun, comprising a spray gun body (1), wherein a water inlet pipe (2) is fixedly installed at the bottom of the spray gun body (1), and a first mounting pipe (3) is fixedly installed on the left side of the spray gun body (1), characterized in that: An adjusting pipe mechanism (4) is provided on the left side of the first mounting pipe (3). A support mechanism (5) connected to the adjusting pipe mechanism (4) is provided on the outside of the first mounting pipe (3). A limiting mechanism (6) extending to the inside of the support mechanism (5) and connected to the adjusting pipe mechanism (4) is provided on the front side of the support mechanism (5). A nozzle mechanism (7) is provided on the left side of the adjusting pipe mechanism (4). A fixing mechanism (8) extending to the inside of the nozzle mechanism (7) is provided on the outside of the adjusting pipe mechanism (4). The regulating pipe mechanism (4) includes a hose (41). The hose (41) is fixedly installed on the left side of the first mounting pipe (3). A connecting pipe (42) is movably installed on the left side of the hose (41). A second mounting pipe (43) is movably installed on the left side of the connecting pipe (42). A connecting plate (44) is fixedly installed on both the front and rear sides of the connecting pipe (42). A support rod (45) is fixedly installed on the rear side of the connecting plate (44). A rotating rod (46) is fixedly installed on the opposite sides of the two connecting plates (44).

2. The adjustable spray angle spray gun according to claim 1, characterized in that: The support mechanism (5) includes an outer frame (51). An outer frame (51) extending to the outside of the hose (41) is fixedly installed on the outside of the first mounting tube (3). Mounting plates (52) are fixedly installed on both the front and rear sides of the outer frame (51). A circular plate (53) that fits against the outer frame (51) is fixedly installed on the left side of the mounting plate (52). An arc-shaped hole (54) is opened inside the circular plate (53). One end of the support rod (45) extends to the inside of the arc-shaped hole (54) on the rear side. The two rotating rods (46) are rotatably connected to the two circular plates (53) respectively.

3. The adjustable spray angle spray gun according to claim 2, characterized in that: The limiting mechanism (6) includes a U-shaped plate (61), and a U-shaped plate (61) extending to the rear side of the front circular plate (53) is slidably installed on the front side of the front circular plate (53). A telescopic spring (62) fixedly connected to the rear side of the circular plate (53) is fixedly installed on the rear side of the inner wall of the U-shaped plate (61). A D-shaped plate (63) that fits against the front side of the circular plate (53) is fixedly installed on the front side of the D-shaped plate (63). A handle (64) is fixedly installed on the front side of the D-shaped plate (63). A stabilizing block (65) that penetrates and extends to the rear side of the circular plate (53) is fixedly installed on the rear side of the D-shaped plate (63). A locking rod (66) that penetrates the arc-shaped hole (54) is fixedly installed on the rear side of the D-shaped plate (63). There are seven locking rods (66) that are distributed in a ring at equal intervals. The middle locking rod (66) extends to the inner side of the front connecting plate (44).

4. The adjustable spray angle spray gun according to claim 1, characterized in that: The nozzle mechanism (7) includes a nozzle body (71), and the nozzle body (71) extending to the left side of the second mounting tube (43) is movably mounted on the outside of the second mounting tube (43). The top and bottom of the nozzle body (71) are fixedly mounted with a fixing frame (72).

5. The adjustable spray angle spray gun according to claim 4, characterized in that: The fixing mechanism (8) includes a rectangular block (81). A rectangular block (81) located on the right side of the nozzle body (71) is fixedly installed on the outside of the second mounting tube (43). The rectangular block (81) has two rectangular holes (82) located on the upper and lower sides of the second mounting tube (43), respectively. Movable plates (83) extending to the front and rear sides of the rectangular block (81) are slidably installed on the inside of the rectangular holes (82). Connecting rods (84) are fixedly installed on the opposite sides of the two moving plates (83). One end of the rod (84) is fixedly installed with a pressure block (85) extending to the outside of the rectangular block (81). One side of the moving plate (83) is fixedly installed with a return spring (86) that is fixedly connected to the inner wall of the rectangular hole (82). The opposite sides of the two moving plates (83) are fixedly installed with lifting plates (87) extending to the outside of the rectangular hole (82). One end of the lifting plate (87) extends to the inside of the fixed frame (72). One side of the lifting plate (87) is fixedly installed with a wedge block (88) extending to the outside of the fixed frame (72).

6. The adjustable spray angle spray gun according to claim 5, characterized in that: The inner wall of the fixed frame (72) near the rectangular block (81) is designed with an opening. The inner wall of the fixed frame (72) is provided with a card hole that matches the wedge block (88). The front and rear sides of the rectangular block (81) are provided with strip holes that communicate with the inner wall of the rectangular hole (82). The size of the strip holes is adapted to the movement trajectory of the moving plate (83).

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