Handheld spraying gun

Abstract

The utility model discloses a handheld spray gun which comprises a handheld handle, a spray gun barrel, a switch hub and an adjusting spray head, the switch hub is integrally connected with the handheld handle and the spray gun barrel, the adjusting spray head is installed at the end of the spray gun barrel, a push switch assembly is installed on the switch hub, and an empty groove is formed in the switch hub. The hollow groove is communicated with a through hole formed in the root of the spraying gun barrel, the push switch assembly comprises a U-shaped push switch and a rotary opening and closing core, and the rotary opening and closing core is rotationally arranged in the hollow groove and tightly attached to the inner wall of the hollow groove. According to the utility model, the switch pivot is arranged between the handheld handle and the spraying gun barrel, and the push switch assembly is arranged on the switch pivot, so that the rotary on-off core is rotated to open or close a passage between the handheld handle and the spraying gun barrel, the operation is convenient, the structure is simple, the failure rate is low, the device is suitable for a normally open state, and hand fatigue is not easy to cause.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to a handheld spraying gun. Background Art

[0002] A spray gun is a device that uses liquid or compressed air to quickly release power. There are two types of spray guns: general pressure type and pressurized type. There are also pressure spray guns, Carle spray guns, and automatic recovery spray guns. Spray guns can be used in the industry to directly load paint, that is, simple spray guns, which can be installed in automated equipment, such as automatic glue spraying machines, automatic glue coating machines, automatic paint spraying machines, coating machines and other spraying equipment.

[0003] Existing control switches for spray guns are generally of a trigger type, and the spray gun is turned on and off by pressing the trigger. This method has a relatively complex structure and a high failure rate. Continuously pressing the trigger in the normally open state can easily cause finger fatigue.

[0004] Therefore, we propose a handheld spray gun to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a handheld spray gun to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a handheld spray gun, comprising: a handheld handle, a spray gun barrel, a switch hub and an adjustable nozzle, wherein the switch hub integrally connects the handheld handle and the spray gun barrel, and the adjustable nozzle is installed at the end of the spray gun barrel;

[0007] The switch hub is installed with a push switch assembly, and a hollow groove is provided in the switch hub, and the hollow groove is connected to a through hole opened at the root of the spray gun barrel;

[0008] The push switch assembly comprises a U-shaped push switch and a rotating on-off core, wherein the rotating on-off core is rotatably arranged in the empty slot, and the rotating on-off core is tightly fitted with the inner wall of the empty slot;

[0009] The U-shaped push switch slides against the upper surface of the switch hub;

[0010] The rotary opening and closing core is provided with a closing cavity and a passage cavity. The rotary opening and closing core rotates so that the closing cavity and the passage cavity are respectively connected with the through hole.

[0011] Preferably, a limit stop convex is integrally provided on the switch hub, and the limit stop convex limits the push switch assembly.

[0012] Preferably, a sealing ring is provided at the connection between the rotating opening and closing core and the switch hub.

[0013] Preferably, the upper end surface of the U-shaped push switch is integrally provided with anti-slip textures.

[0014] Preferably, the end of the U-shaped push switch is integrally provided with a latch head, and both ends of the rotary opening and closing core are provided with plug-in slots, and the latch head is plug-in-connected with the plug-in slots.

[0015] Preferably, push-pull switch assemblies are installed on both sides of the rotating opening and closing core, and the push-pull switch assemblies are provided with U-shaped push-pull switches, and the U-shaped push-pull switches are suspended above the switch hub.

[0016] Preferably, an anti-slip sleeve is integrally sleeved on the upper end of the U-shaped push-pull switch, and an anti-slip sheet is provided in the middle of the U-shaped push-pull switch.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By setting a switch hub between the hand-held grip and the spray gun barrel, and installing a push switch assembly on the switch hub, the rotating opening and closing core is rotated to open or close the passage between the hand-held grip and the spray gun barrel. The operation is convenient and the structure is simple. This method has a low failure rate and is suitable for the normally open state, and is not easy to cause hand fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional view of the hand-held grip, spray gun barrel and switch hub in the first embodiment of the utility model;

[0021] Figure 3 For this utility model Figure 2 's side elevation view;

[0022] Figure 4 This is a schematic diagram of the structure of the push switch assembly in the first embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the push-pull switch assembly in the second embodiment of the present utility model.

[0025] In the figure: 1. Hand grip; 2. Spray gun barrel; 21. Through hole; 3. Switch hub; 31. Limit stop cam; 32. Empty slot; 4. Adjustment nozzle; 5. Push switch assembly; 51. Anti-skid pattern; 52. U-shaped push switch; 53. Rotating opening and closing core; 531. Closing cavity; 532. Plug slot; 533. Passing cavity; 54. Pin head; 6. Push-pull switch assembly; 61. U-shaped push-pull switch; 62. Anti-skid sleeve; 63. Anti-skid sheet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1-4 The utility model provides a technical solution: a handheld spray gun, comprising: a handheld grip 1, a spray gun barrel 2, a switch hub 3 and an adjustable nozzle 4, wherein the switch hub 3 integrally connects the handheld grip 1 and the spray gun barrel 2, and the end of the spray gun barrel 2 is equipped with the adjustable nozzle 4;

[0029] The switch hub 3 is provided with a push switch assembly 5, and a limit stop convex 31 is integrally provided on the switch hub 3, and the limit stop convex 31 limits the push switch assembly 5;

[0030] A hollow groove 32 is provided in the switch hub 3, and the hollow groove 32 is connected to the through hole 21 opened at the root of the spray gun barrel 2, so as to realize the passage from the hand-held grip 1 to the spray gun barrel 2 through the switch hub 3;

[0031] The push switch assembly 5 comprises a U-shaped push switch 52 and a rotating on-off core 53. The rotating on-off core 53 is rotatably disposed in the empty slot 32, and the rotating on-off core 53 is tightly fitted with the inner wall of the empty slot 32.

[0032] A sealing ring is provided at the connection between the rotating opening and closing core 53 and the switch hub 3;

[0033] The U-shaped push switch 52 slides against the upper surface of the switch hub 3, and the upper surface of the U-shaped push switch 52 is integrally provided with anti-slip texture 51;

[0034] The end of the U-shaped push switch 52 is integrally provided with a latch head 54, and both ends of the rotating on-off core 53 are provided with plug-in slots 532. The latch head 54 is plug-in-connected with the plug-in slots 532, so that the U-shaped push switch 52 and both ends of the rotating on-off core 53 are coaxially fixed, and the rotation of the rotating on-off core 53 is achieved by pushing the U-shaped push switch 52;

[0035] The rotating opening and closing core 53 is provided with a closing cavity 531 and a passage cavity 533. When the closing cavity 531 rotates to face the through hole 21, the rotating opening and closing core 53 closes the connection between the empty slot 32 and the through hole 21. When the passage cavity 533 rotates to face the through hole 21, the rotating opening and closing core 53 opens the connection between the empty slot 32 and the through hole 21.

[0036] The hand grip 1 is held by the hand, and the switch assembly 5 is pushed by the thumb to rotate the rotary opening and closing core 53 located in the switch hub 3, so as to realize the opening and closing of the hand grip 1 to the spray gun barrel 2, thereby completing the switch control of the hand-held spray gun.

[0037] Embodiment 2

[0038] See also Figure 5-6 The utility model provides a technical solution: a handheld spray gun, comprising: a push-pull switch assembly 6, the difference between this embodiment and the first embodiment is that the push-pull switch assembly 6 is provided with a U-shaped push-pull switch 61, the U-shaped push-pull switch 61 is suspended above the switch hub 3, and the U-shaped push-pull switch 61 has a lever effect, so that the rotation of the U-shaped push-pull switch 61 is more labor-saving;

[0039] The upper end of the U-shaped push-pull switch 61 is integrally sleeved with an anti-slip sleeve 62, and the middle of the U-shaped push-pull switch 61 is provided with an anti-slip sheet 63. The U-shaped push-pull switch 61 is pushed and pulled by the anti-slip sleeve 62, and the U-shaped push-pull switch 61 is pushed to rotate by the anti-slip sheet 63. The anti-slip sheet 63 has the same function and effect as the anti-slip pattern 51 in the first embodiment.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A handheld spray gun, comprising: A hand-held handle (1), a spray gun barrel (2), a switch hub (3) and an adjustable nozzle (4), wherein the switch hub (3) integrally connects the hand-held handle (1) and the spray gun barrel (2), and the adjustable nozzle (4) is installed at the end of the spray gun barrel (2); The invention is characterized in that: the switch hub (3) is equipped with a push switch assembly (5), a hollow groove (32) is provided in the switch hub (3), and the hollow groove (32) is connected to a through hole (21) provided at the root of the spray gun barrel (2); The push switch assembly (5) comprises a U-shaped push switch (52) and a rotating on-off core (53), wherein the rotating on-off core (53) is rotatably disposed in the empty slot (32), and the rotating on-off core (53) is tightly fitted to the inner wall of the empty slot (32); The U-shaped push switch (52) slides against the upper surface of the switch hub (3); The rotating opening and closing core (53) is provided with a closing cavity (531) and a passage cavity (533). The rotating opening and closing core (53) rotates so that the closing cavity (531) and the passage cavity (533) are respectively connected to the through hole (21).

2. A handheld spray gun according to claim 1, characterized in that: The switch hub (3) is integrally provided with a limit stop convex (31), and the limit stop convex (31) limits the push switch assembly (5).

3. A handheld spray gun according to claim 1, characterized in that: A sealing ring is provided at the connection between the rotating opening and closing core (53) and the switch hub (3).

4. A handheld spray gun according to claim 1, characterized in that: The upper surface of the U-shaped push switch (52) is integrally provided with anti-slip patterns (51).

5. A handheld spray gun according to claim 4, characterized in that: The end of the U-shaped push switch (52) is integrally provided with a latch head (54), and both ends of the rotary opening and closing core (53) are provided with plug-in slots (532), and the latch head (54) is plug-in-connected with the plug-in slots (532).

6. A handheld spray gun according to claim 1, characterized in that: Push-pull switch assemblies (6) are installed on both sides of the rotating on-off core (53), and the push-pull switch assemblies (6) are provided with U-shaped push-pull switches (61). The U-shaped push-pull switches (61) are suspended above the switch hub (3).

7. A handheld spray gun according to claim 6, characterized in that: The upper end of the U-shaped push-pull switch (61) is integrally sleeved with an anti-slip sleeve (62), and the middle of the U-shaped push-pull switch (61) is provided with an anti-slip sheet (63).

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