CN103191843A - Spray gun provided with extension rod - Google Patents

Abstract

The invention discloses a spray gun with an extension rod, which includes a gun body, a handle and an extension rod. The front end of the gun body is provided with a nozzle, and the gun body is provided with a valve core and a gun body trigger for controlling the movement of the valve core. The front end of the handle and the front end of the extension rod are provided with a socket part, and the rear end of the gun body and the rear end of the extension rod are provided with an intubation part inserted into the socket part, and the socket part and the intubation part are connected by a snap-fit mechanism Snap connection, the inside of the extension rod is provided with a wire rope, and one end of the extension rod close to the handle is hinged with an extension rod trigger for pulling the wire rope, one end of the wire rope is connected to the extension rod trigger, and the other end of the wire rope is detachable from the gun body trigger connect. In this technical solution, the extension rod is integrally formed by clamping and fixing the gun body push button on the gun body seat and the handle push button on the handle, and the sliding push button can separate the gun body and the handle. The structure is simple, easy to assemble and disassemble, and the assembly efficiency is high.

Description

A spray gun with an extension rod

technical field

The invention relates to the technical field of spray guns, in particular to a spray gun with an extension rod.

Background technique

Spray guns are widely used in the spraying of various paints. Because the handle of the spray gun is short, it is not conducive to spraying at a distance or at a high position, which greatly limits the scope of use of the spray gun. In order to solve this problem , the Chinese patent document authorization announcement number is CN202506557U, and the patent name is "an electric spray gun with an extension rod". This patent is provided with an extension rod on the spray gun. The connection between the rod and the gun body and the handle is complicated, and the assembly and disassembly operation is cumbersome, and the pull cord for pulling the gun body wrench is arranged on the outside of the extension rod, which affects the appearance.

Contents of the invention

Aiming at the deficiencies in the prior art, the object of the present invention is to provide a spray gun with an extension rod that has a reasonable structure, a simple structure, convenient assembly and disassembly of the extension rod, high assembly efficiency and reliable operation.

In order to achieve the above object, the present invention provides the following technical solutions: a spray gun with an extension rod, including a gun body, a handle and an extension rod, the front end of the gun body is provided with a nozzle, and the gun body is provided with a valve core and a control valve. The trigger of the gun body with the core moving, the front end of the handle and the front end of the extension rod are provided with a socket part, the rear end of the gun body and the rear end of the extension rod are provided with an intubation part plugged into the socket part, the socket part and The intubation parts are snapped together by a snap-in mechanism. The snap-in mechanism includes an up-and-down push button groove arranged on one side of the socket part, and a concave groove arranged on the intubation part to limit the axial movement of the intubation part. Limiting groove, a push button is slid on the push button groove, the inner end of the push button cooperates with the concave-shaped limiting groove, and the gun body is connected to the handle through the snap-fitting of the inner end of the push button and the concave-shaped limiting groove fixed, the intubation part and the socket part are also provided with an anti-rotation structure that restricts the rotation of the intubation part, a steel wire rope is arranged inside the extension rod, and an extension rod for pulling the wire rope is hinged on the end of the extension rod close to the handle A trigger, one end of the wire rope is connected to the trigger of the extension rod, and the other end of the wire rope is detachably connected to the trigger of the gun body.

By adopting the above technical scheme, the extension rod controls the clamping mechanism through the push button to connect or separate the gun body or the handle from the extension rod. The structure is simple, the assembly and disassembly are convenient, and the assembly efficiency is high; the gas generated by the spray gun enters the oblique joint through the hose , through the extension rod to reach the gun body, part of the gas is ejected from the nozzle, and the other part of the gas enters the liquid storage pot to press the liquid out of the nozzle.

The present invention is further set as: the anti-rotation structure includes a concave-shaped limiting groove and an axial limiting groove arranged on the inner wall of the socket part, the concave-shaped limiting groove protrudes from the surface of the intubation part and is aligned with the axial limiting groove. Bit slot fit. Through this setting, the structural setting of the clamping mechanism is more reasonable and the work is reliable.

In the present invention, it is further provided that: the inner end of the push button is provided with a fixing block for cooperating with the concave-shaped limiting groove. With this setting, the push button works more reliably.

The present invention is further configured as follows: there are two snap-in mechanisms, and the two snap-in mechanisms are symmetrically arranged left and right. Through this setting, the number of clamping mechanisms is set reasonably.

The present invention is further configured as follows: the outer side of the push button groove has a U-shaped structure, and convex points for positioning the push button are arranged symmetrically on both sides of the push button groove. Through this setting, the structure setting of the push button groove is more reasonable.

The present invention is further provided that: each side of the push button groove is provided with two convex points. Through this setting, the positioning of the push button is reliable, and the shaking of the push button is effectively prevented.

The present invention is further set as: the trigger of the gun body is provided with a connecting button and an adjusting screw, the connecting button is fixed with the trigger of the gun body through a pin with a handle, the adjusting screw is threadedly connected with the connecting button, and the adjusting The screw is connected with the wire rope close to the trigger end of the gun body and tightens the wire rope by adjusting the screw. Through this setting, the operation of adjusting the tightness of the steel wire rope is convenient.

The present invention is further configured as: the two ends of the steel wire rope are respectively fixed with limiting parts. Through this setting, the limit piece makes the wire rope connection more convenient and reliable.

The present invention is further provided that: the extension rod is a straight rod or formed by butt joints of multiple straight rod bodies. With this configuration, the extension rod has a simple structure and good applicability.

The advantages of the present invention are: the structure of the present invention is reasonably arranged, the steel wire rope is arranged inside the extension rod, which is beautiful and fashionable and can prevent hand injury, the extension rod controls the clamping mechanism through the push button to connect or separate the gun body or handle from the extension rod, and the structure is simple , Easy assembly and disassembly, high assembly efficiency.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a half-sectional schematic diagram of an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the docking of the gun body and the handle according to the embodiment of the present invention;

Fig. 4 is the structural representation of the gun body of the embodiment of the present invention;

Fig. 5 is a schematic structural view of the inside of the push button groove according to the embodiment of the present invention;

Fig. 6 is a schematic diagram of the assembly of the push button groove and the push button according to the embodiment of the present invention.

Detailed ways

Referring to Figures 1 to 6, a spray gun with an extension rod provided by the present invention includes a gun body 1, a handle 3 and an extension rod 2, the front end of the gun body 1 is provided with a nozzle 4, and the gun body 1 is provided with a valve core 5 and the gun body trigger 6 used to control the movement of the spool 5, the front end of the handle 3 and the front end of the extension rod 2 are provided with a socket part, the rear end of the gun body 1 and the rear end of the extension rod 2 are provided with the socket part Inserting the intubation part, the socket part and the intubation part are clamped by a snap-in mechanism, and the snap-in mechanism includes an up-and-down push button groove 7 arranged on one side of the socket part, and a push button groove 7 arranged on the intubation part. There is a concave-shaped limiting groove 8 for restricting the axial movement of the intubation part, and a push button 9 is slid on the push button groove 7, and the inner end of the pushing button 9 is matched with the concave-shaped limiting groove 8, through The inner end of the push button 9 is engaged with the concave-shaped limit groove 8 so that the gun body 1 and the handle 3 are connected and fixed. An anti-rotation structure is also provided between the intubation part and the socket part to limit the rotation of the intubation part. The extension rod 2 There is a steel wire rope 10 inside, and one end of the extension rod 2 close to the handle 3 is hinged with an extension rod trigger 11 for pulling the wire rope 10, one end of the steel wire rope 10 is connected to the extension rod trigger 11, and the other end of the wire rope 10 is connected to the gun body trigger 6 detachable connections.

The anti-rotation structure includes a concave-shaped limiting groove 8 and an axial limiting groove 12 arranged on the inner wall of the socket part. Cooperate.

The inner end of the push button 9 is provided with a fixing block 13 for cooperating with the concave-shaped limiting groove 8 .

There are two clamping mechanisms, and the two clamping mechanisms are arranged symmetrically.

The outer side of the push button groove 7 has a U-shaped structure, and the two sides of the push button groove 7 are symmetrically provided with protrusions 71 for positioning the push button. Preferably, two protruding points 71 are provided on each side of the button groove 7 in this embodiment.

In order to make the work of the present invention more reliable, the gun body trigger 6 in this embodiment is provided with a connecting button 14 and an adjusting screw 15, and the connecting button 14 passes through a pin 16 with a handle (it should be noted here that the pin 16 and the structure of the handle can be set to an "L"-shaped structure, as long as the handle is convenient for the operator to grasp directly with the hand) and the gun body trigger 6 is fixed, the adjusting screw 15 is threadedly connected with the connecting button 14, and the adjusting screw 15 is connected with the wire rope 10 near gun body trigger 6 ends and tightens wire rope 10 by adjusting screw 15.

The two ends of the steel wire rope 10 are respectively fixed with limiting parts 17 . In this embodiment, preferably, the limiting member 17 is a ball or a rectangular block.

The extension rod 2 is a straight rod or formed by butt joints of multiple straight rod bodies. Preferably, the extension rod 2 of this embodiment is formed by butting two straight rods, and a clamping structure is provided at the joint of the two straight rods, and then fixed into a whole through clamping.

The working principle of the present invention: (1) The gas generated by the spray gun is input into the oblique joint of the hose through the hose, and reaches the gun body through the extension rod. Part of the gas is sprayed from the nozzle, and the other part of the gas enters the liquid storage pot. Press the liquid out of the nozzle.

(2) Pull the trigger of the extension rod, and under the action of the wire rope, the adjustment screw, the connection button and the trigger of the gun body will be driven to rotate, thereby opening the valve core and allowing the liquid to spray out from the nozzle. The adjusting knob can adjust the size of the flow, and the adjusting screw can adjust the tightness of the wire rope.

(3) The wire rope is set inside the extension rod, which will not hurt hands and is convenient to use.

(4) Pull out the pin to quickly disengage the connecting button and adjusting screw from the trigger of the gun body; pull the wire rope so that the limit piece at the root of the wire rope passes through the slot of the trigger of the gun body, so that the wire rope can be released from the extension rod Disengage the trigger. There is a handle on the pin, which is convenient to pull out from the trigger of the gun body to realize quick release.

(5) The extension rod can be divided into multiple sections, which are connected by the extension rod joint, and can be quickly assembled and disassembled through the extension rod joint.

(6) After the extension rod is quickly disassembled, the gun body and handle can be connected to form a new spray gun.

The specific description of the present invention in the above-mentioned embodiments is only used to further illustrate the present invention, and can not be interpreted as limiting the protection scope of the present invention. Technical engineers in the field make some non-essential improvements and adjustments to the present invention according to the content of the above-mentioned invention. Into the protection scope of the present invention.

Claims (9)

1. A spray gun with an extension rod, comprising a gun body (1), a handle (3) and an extension rod (2), the front end of the gun body (1) is provided with a nozzle (4), and the gun body (1) is provided with There is a spool (5) and a gun body trigger (6) for controlling the movement of the spool (5), and it is characterized in that: the front end of the handle (3) and the front end of the extension rod (2) are provided with sockets, and the gun The rear end of the body (1) and the extension rod (2) are provided with an intubation part inserted into the socket part, and the socket part and the intubation part are connected by a snap-in mechanism, and the snap-in mechanism It includes an up-and-down push button groove (7) arranged on one side of the socket part, a concave-shaped limit groove (8) arranged on the intubation part for limiting the axial movement of the intubation part, and the push button groove (7) ) is slidingly fitted with a push button (9), the inner end of the push button (9) cooperates with the concave-shaped limit groove (8), and the inner end of the push button (9) is engaged with the concave-shaped limit groove (8) The gun body (1) is connected and fixed with the handle (3), and an anti-rotation structure is provided between the intubation part and the socket part to limit the rotation of the intubation part, and a steel wire rope (10 ), one end of the extension rod (2) close to the handle (3) is hinged with an extension rod trigger (11) for pulling the wire rope (10), one end of the wire rope (10) is connected with the extension rod trigger (11), and the wire rope (10) The other end is detachably connected with the gun body trigger (6). 2. A spray gun with an extension rod according to claim 1, characterized in that: the anti-rotation structure includes a concave-shaped limiting groove (8) and an axial limiting groove (12) provided on the inner wall of the socket part , the concave-shaped limiting groove (8) protrudes from the surface of the intubation part and cooperates with the axial limiting groove (12). 3. A spray gun with an extension rod according to claim 1 or 2, characterized in that: the inner end of the push button (9) is provided with a fixed block (13) for matching with the concave-shaped limiting groove ( 8) Cooperate. 4. A spray gun with an extension rod according to claim 1, characterized in that: there are two locking mechanisms, and the two locking mechanisms are arranged symmetrically. 5. A spray gun with an extension rod according to claim 1, 2 or 4, characterized in that: the outer side of the push button groove (7) has a U-shaped structure, and the two sides of the push button groove (7) The protrusions (71) of the positioning push buttons are arranged symmetrically. 6. A spray gun with an extension rod according to claim 5, characterized in that: each side of the push button groove (7) is provided with two convex points (71). 7. A spray gun with an extension rod according to claim 1, characterized in that: the trigger (6) of the gun body is provided with a connecting button (14) and an adjusting screw (15), and the connecting button (14 ) is fixed with the gun body trigger (6) through a pin (16) with a handle, the adjusting screw (15) is threadedly connected with the connection button (14), and the adjusting screw (15) is connected with the gun body trigger (6) Connect the wire rope (10) at the end and tighten the wire rope (10) by adjusting the screw (15). 8 . A spray gun with an extension rod according to claim 7 , characterized in that: the two ends of the steel wire rope ( 10 ) are respectively fixed with limiting members ( 17 ). 9. A spray gun with an extension rod according to claim 1, characterized in that: the extension rod (2) is a straight rod or a butt joint of multiple straight rod bodies.

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