CN218573976U

CN218573976U - Spray gun

Info

Publication number: CN218573976U
Application number: CN202221615579.9U
Authority: CN
Inventors: 王银江; 王海洋
Original assignee: Ningbo Jianghui Electrical Technology Co ltd
Current assignee: Ningbo Jianghui Electrical Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-03-07
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a spray gun, which comprises a gun body and a gun head, wherein the front end of the gun body is provided with a socket, a bolt hole is arranged in the socket, the tail end of the gun head is provided with a plug, the plug is provided with a bolt, the plug can be inserted in the socket in a matching way, and the bolt can be inserted in the bolt hole in a matching way to lock the plug and the socket; the plug is arranged on the inner side of the side wall of the plug, and the head of the plug can elastically stretch and contract and can stretch out of the side wall of the plug to be inserted into the plug hole or retract towards the inner side of the side wall of the plug to be withdrawn from the plug hole. The utility model discloses a connection structure that body of a gun and rifle head are connected to the spray gun is simple, and dismantlement, installation between body of a gun and the rifle head are all very convenient.

Description

Spray gun

Technical Field

The utility model relates to a spray gun.

Background

The spray gun utilizes quick release of compressed air as power to spray out coating, and the spray gun comprises a gun body, a gun head and a trigger, wherein the gun body is connected with the gun head through a connecting mechanism, and the joint of the gun body and the gun head is required to ensure enough tightness so as to avoid the influence on the spraying effect caused by the leakage of the compressed air from the joint when the spray gun is used. Due to normal wear of the sealing parts, blockage of the gun head by residual coating and the like, the spray gun needs frequent maintenance in use, and the gun head needs to be detached from the gun body during maintenance. At present spray gun on the market, for guaranteeing zonulae occludens between body of a gun and the rifle head, connection structure all designs very complicated, dismantles all very arduous with the installation, and what have still need also dismantle the trigger when dismantling gets off, and the operation is really inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a spray gun, the connection structure who connects body of a gun and rifle head is simple for dismantlement, installation between body of a gun and the rifle head are all very convenient.

The technical solution of the utility model is to provide a spray gun, which comprises a gun body and a gun head, wherein the front end of the gun body is provided with a socket, a bolt hole is arranged in the socket, the tail end of the gun head is provided with a plug, the plug is provided with a bolt, the plug can be inserted in the socket in a matching way, and the bolt can be inserted in the bolt hole in a matching way to lock the plug and the socket; the plug is arranged on the inner side of the side wall of the plug, and the head of the plug can elastically stretch and contract and can extend out of the side wall of the plug to be inserted into the plug hole or retract towards the inner side of the side wall of the plug to be withdrawn from the plug hole.

Compared with the prior art, the utility model discloses a spray gun has following advantage: the plug can be matched and inserted in the socket, so that the gun body and the gun head are convenient to connect, and the connecting structure is simple; the plug is arranged on the inner side of the side wall of the plug, the head of the plug can elastically stretch out and retract, and the head of the plug can extend out of the side wall of the plug and be inserted into the plug hole to lock the plug and the socket, so that the gun body and the gun head can be conveniently connected and locked, and the gun body and the gun head can be prevented from being accidentally separated when the spray gun is used; the head of the bolt can retract towards the inner side of the side wall of the plug and is withdrawn from the bolt hole, so that the gun body and the gun head are convenient to unlock and disassemble.

Preferably, the bolt comprises a base and a bolt head, the bolt head is elastically connected with the base, the base limits the bolt head, and the bolt head can elastically stretch on the base; the base sets up the lateral wall inboard at the plug, the head plug of bolt, the lateral wall that the plug can be stretched out to the bolt head. By adopting the structure, the structure of the plug is simple, the assembly is also simple, the base is only required to be arranged on the inner side of the side wall of the plug, and the side wall of the plug can be extended by the plug head through the hole on the side wall of the plug, so that the plug head can be elastically and telescopically inserted into or withdrawn from the plug hole.

Preferably, an inner cavity with an opening at one side is formed in the base, a connecting sleeve is arranged on the base, an accommodating cavity with openings at two sides is formed in the connecting sleeve, an opening at one side of the accommodating cavity is opposite to the inner cavity of the base and is communicated with the inner cavity of the base, the connecting sleeve is limited by the outer side wall of the plug, and the base is limited by the inner side wall of the plug; the bolt head is arranged in the accommodating cavity, a first elastic piece is arranged in the inner cavity of the base and is abutted against the base and the bolt head, and the bolt head can extend out of the opening at the other side of the accommodating cavity. By adopting the structure, the structure of the plug pin is simple, the assembly is also very simple, and the assembly of the plug pin can be completed only by butting the connecting sleeve and the base on the inner side and the outer side of the side wall of the plug respectively; the bolt head can stretch out and draw back along the holding chamber, compresses first elastic component when the bolt head withdraws from the bolt hole, and first elastic component kick-backs and then enables the bolt head to insert in the bolt hole.

Preferably, the outer side wall of the connecting sleeve is provided with an external thread, the cavity wall of the inner cavity of the base is provided with an internal thread, and the connecting sleeve is in threaded connection with the base. By adopting the structure, the structure of the bolt is simple, the assembly is also simple, and the bolt can be assembled only by screwing the connecting sleeve and the base respectively on the inner side and the outer side of the side wall of the plug.

Preferably, a button is arranged on the outer side wall of the gun body, the lower end of the button is opposite to or extends into the bolt hole, the upper end of the button extends out of the gun body, and the button is used for pushing the head of the bolt to retract towards the inner side of the side wall of the plug until the head of the bolt exits from the bolt hole. By adopting the structure, the head of the bolt can be pushed to retract towards the inner side of the side wall of the plug until the bolt is withdrawn from the hole by pressing the button, the connection between the gun body and the gun head is unlocked, and the gun head is conveniently detached from the gun body.

Preferably, the downside of button is provided with the second elastic component, and the second elastic component all contradicts with button and body of a gun. Adopt this structure, press the button, the second elastic component is compressed, loosens the button, then the second elastic component kick-backs and promotes the button and resets, ensures to loosen behind the button, and the button no longer contradicts with the head of bolt, avoids influencing the next locking operation of being connected of body of a gun and rifle head.

Preferably, a sliding groove is formed in the inner side wall of the socket, the bolt hole is located in the sliding groove, the sliding groove is connected with the end portion of the socket, a guide inclined plane is arranged at the connecting portion of the sliding groove and the end portion of the socket, and the guide inclined plane inclines from the end portion of the socket to the bottom of the sliding groove. By adopting the structure, when the plug is in butt joint with the socket, the guide inclined plane can guide the head of the bolt into the bolt hole in the chute, and the head of the bolt is prevented from being blocked due to collision with the inner side wall of the socket.

Preferably, the inner side wall of the socket is provided with at least one guide groove, the outer side wall of the plug is provided with a guide strip matched with the guide groove, when the plug is matched with the socket in an inserting mode, the guide strip is matched with the guide groove to slide, and the guide groove guides the plug. By adopting the structure, when the plug is matched and plugged with the socket, the guide groove guides the plug, so that the head of the plug can smoothly enter the plug hole of the socket.

Preferably, the end of the plug is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the sealing ring is in interference fit between the socket and the plug. By adopting the structure, the joint of the gun body and the gun head has enough tightness, and the gun body and the gun head are ensured to be connected tightly and airtightly.

Preferably, be provided with spacing bulge loop on the lateral wall of plug, plug and socket cooperation are pegged graft and the downthehole time of bolt cooperation insertion bolt, and spacing bulge loop contacts or contradicts with the tip of socket. By adopting the structure, when the head of the bolt can not smoothly enter the bolt hole of the socket, the deformation of the socket caused by the excessive insertion of the plug into the socket can be avoided.

Drawings

Fig. 1 is a schematic structural view of the spray gun of the present invention.

Fig. 2 is a sectional view of the area a in fig. 1.

Fig. 3 is an exploded view of fig. 1.

As shown in the figure: 1. the gun comprises a gun body, 1-1 parts of a gun body, a socket, 1-2 parts of a guide groove, 2 parts of a gun head, 2-1 parts of a plug, 2-2 parts of a guide strip, 2-3 parts of a seal groove, 2-4 parts of a limit convex ring, 3 parts of a button, 4 parts of a button spring, 5 parts of a chute, 5-1 parts of a bolt hole, 5-2 parts of a guide inclined plane, 6 parts of a connecting sleeve, 7 parts of a base, 8 parts of a bolt head, 9 parts of a bolt spring.

Detailed Description

In order that the present application may be better understood, various aspects of the present application will be described in greater detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, when a representation such as "… at least one" appears after the list of listed features, the entire listed feature is modified rather than modifying an individual element in the list.

Example 1:

as shown in fig. 1 to 3, the spray gun of the present invention includes a gun body 1 and a gun head 2, a socket 1-1 is provided at the front end of the gun body 1, a sliding groove 5 is provided on the inner side wall of the socket 1-1, a bolt hole 5-1 is provided in the sliding groove 5, the sliding groove 5 is connected with the end of the socket 1-1, and a guiding inclined plane 5-2 is provided at the connection part, the guiding inclined plane 5-2 is inclined from the end of the socket 1-1 to the bottom of the sliding groove 5, and the sliding groove 5, the bolt hole 5-1 and the guiding inclined plane 5-2 are all integrally provided with the gun body 1; the outer side wall of the gun body 1 is provided with a button 3, the lower end of the button 3 is opposite to the bolt hole 5-1 or extends into the bolt hole 5-1, the upper end of the button 3 extends out of the gun body 1, the lower side of the button 3 is provided with a second elastic piece, namely a button spring 4, the lower end of the button 3 is inserted into the button spring 4, one end of the button spring 4 is connected with the button 3 in an abutting mode, and the other end of the button spring is connected with the gun body 1 at the upper end of the bolt hole 5-1 in an abutting mode.

The tail end of the gun head 2 is provided with a plug 2-1, and the plug 2-1 can be matched and plugged in the socket 1-1. The plug 2-1 is provided with a plug pin, and the plug pin comprises a base 7, a connecting sleeve 6, a plug pin head 8 and a first elastic piece, namely a plug pin spring 9; an inner cavity with an opening at one side is arranged in the base 7, and an internal thread is arranged on the cavity wall of the inner cavity of the base 7; the outer side wall of the connecting sleeve 6 is provided with external threads, the side wall of the plug 2-1 is provided with a through hole, the connecting sleeve 6 penetrates through the through hole and is in threaded connection with the base 7 respectively at the outer side and the inner side of the side wall of the plug 2-1, namely the connecting sleeve 6 is in threaded connection in the base 7, the outer side wall of the plug 2-1 limits the connecting sleeve 6, and the inner side wall of the plug 2-1 limits the base 7. An accommodating cavity with openings at two sides is arranged in the connecting sleeve 6, and an opening at one side of the accommodating cavity is opposite to the inner cavity of the base 7 so that the accommodating cavity is communicated with the inner cavity of the base 7; the head of bolt plug 8 sets up the holding intracavity, base 7 and adapter sleeve 6 are all spacing to bolt head 8, bolt spring 9 sets up in the inner chamber of base 7, bolt spring 9's one end is contradicted with bolt head 8 and is connected, the other end is contradicted with base 7 and is connected, bolt head 8 can the holding intracavity stretch out and draw back, and bolt head 8 can follow the opposite side opening in holding chamber stretch out.

Two guide grooves 1-2 which are opposite to each other at the left and the right are arranged on the inner side wall of the socket 1-1, and two guide strips 2-2 which are correspondingly matched with the guide grooves 1-2 one by one are arranged on the outer side wall of the plug 2-1. In the process that the plug 2-1 is matched and plugged with the socket 1-1, the guide strip 2-2 is matched and slides with the guide groove 1-2, the guide groove 1-2 guides the plug 2-1, the plug head 8 is guided into the sliding groove 5 by the guide inclined plane 5-2 and is finally inserted into the plug hole 5-1, and the plug 2-1 and the socket 1-1, namely the gun body 1 and the gun head 2, are locked. When the gun head 2 is to be detached from the gun body 1, the gun body 1 and the gun head 2 can be unlocked only by pressing the button 3 to make the lower end of the button 3 extend into the bolt hole 5-1 to push the bolt head 8 to withdraw from the bolt hole 5-1, and at the moment, the plug 2-1 can be separated from the socket 1-1 by force, so that the gun head 2 is detached from the gun body 1.

In addition, a sealing groove 2-3 is arranged at the end part of the plug 2-1, a sealing ring is arranged in the sealing groove 2-3, after the plug 2-1 is matched, inserted and locked with the socket 1-1, the sealing ring is in interference fit between the socket 1-1 and the plug 2-1, and the connecting part of the gun body 1 and the gun head 2 is sealed and does not leak air. The outer side wall of the plug 2-1 is also provided with a limiting convex ring 2-4, after the plug 2-1 is matched, spliced and locked with the socket 1-1, the limiting convex ring 2-4 is contacted with the end part of the socket 1-1, the limiting convex ring 2-4 limits the gun body 1, and the socket 1-1 is prevented from deforming due to the fact that the plug 2-1 is excessively inserted into the socket 1-1.

Example 2:

the spray gun of the embodiment is different from the spray gun of the embodiment 1 in that a gun body 1 is not provided with a button 3 and a guide groove 1-2, and a gun head 2 is also not provided with a guide strip 2-2 matched with the guide groove 1-2; the inner side wall of the socket 1-1 is provided with a circumferential sliding groove, a bolt hole 5-1 is arranged in the sliding groove, guide inclined planes are arranged on the two sides of the bolt hole 5-1 on the inner side wall of the socket 1-1, the guide inclined planes are transition surfaces from the groove bottom of the sliding groove 5 to the inner side wall of the socket 1-1, and the groove bottom of the sliding groove 5 is in inclined transition to the inner side wall of the socket 1-1. Therefore, in the process that the plug 2-1 is matched with the socket 1-1 for plugging, the plug head 8 can circumferentially slide into the plug hole 5-1 along the guide inclined plane to lock the plug 2-1 and the socket 1-1 after entering the socket 1-1; and the plug head 8 can slide out of the plug hole 5-1 from the guide inclined plane by rotating the plug 2-1 left and right, so that the plug 2-1 and the socket 1-1 are unlocked.

The above are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. A spray gun comprises a gun body (1) and a gun head (2); the front end of the gun body (1) is provided with a socket (1-1), and a bolt hole (5-1) is arranged in the socket (1-1); a plug (2-1) is arranged at the tail end of the gun head (2), and a plug pin is arranged on the plug (2-1); the plug (2-1) can be inserted into the socket (1-1) in a matching way, and the plug can be inserted into the plug hole (5-1) in a matching way to lock the plug (2-1) and the socket (1-1); the novel bolt is characterized by comprising a base (7), a connecting sleeve (6), a bolt head (8) and a first elastic piece; the base (7) is arranged on the inner side of the side wall of the plug (2-1), a through hole is formed in the side wall of the plug (2-1), the connecting sleeve (6) penetrates through the through hole from the outer side of the side wall of the plug (2-1) to be connected with the base (7), the outer side wall of the plug (2-1) limits the connecting sleeve (6), and the inner side wall of the plug (2-1) limits the base (7); an inner cavity with an opening at one side is arranged in the base (7), an accommodating cavity with openings at two sides is arranged in the connecting sleeve (6), and an opening at one side of the accommodating cavity is opposite to and communicated with the inner cavity of the base (7); the bolt head (8) is arranged in the accommodating cavity, the base (7) and the connecting sleeve (6) limit the bolt head (8), and the first elastic piece is arranged in the inner cavity of the base (7) and positioned between the base (7) and the bolt head (8); the plug head (8) can extend out of the side wall of the plug (2-1) from the opening at the other side of the accommodating cavity and be inserted into the plug hole (5-1), or retract towards the inner side of the side wall of the plug (2-1) and exit from the plug hole (5-1).

2. The spray gun according to claim 1, characterized in that the outer side wall of the connecting sleeve (6) is provided with an external thread, the wall of the inner cavity of the base (7) is provided with an internal thread, and the connecting sleeve (6) is in threaded connection with the base (7).

3. Spray gun according to claim 1, characterized in that the outer side wall of the gun body (1) is provided with a button (3), the lower end of the button (3) is opposite to the plug hole (5-1) or extends into the plug hole (5-1), the upper end of the button (3) extends out of the gun body (1), and the button (3) is used for pushing the head of the plug to retract towards the inner side of the side wall of the plug (2-1) until exiting out of the plug hole (5-1).

4. Spray gun according to claim 3, characterized in that the underside of the push button (3) is provided with a second resilient member which interferes with both the push button (3) and the gun body (1).

5. The spray gun according to claim 3, characterized in that the inner side wall of the socket (1-1) is provided with a sliding groove (5), the pin hole (5-1) is positioned in the sliding groove (5), the sliding groove (5) is connected with the end of the socket (1-1) and the connecting part is provided with a guide inclined plane (5-2), and the guide inclined plane (5-2) inclines from the end of the socket (1-1) to the bottom of the sliding groove (5).

6. A spray gun according to claim 3, characterized in that at least one guide groove (1-2) is arranged on the inner side wall of the socket (1-1), a guide strip (2-2) matched with the guide groove (1-2) is arranged on the outer side wall of the plug (2-1), when the plug (2-1) is matched and plugged with the socket (1-1), the guide strip (2-2) is matched and slid with the guide groove (1-2), and the guide groove (1-2) guides the plug (2-1).

7. Spray gun according to claim 1, characterized in that the end of the spigot (2-1) is provided with a sealing groove (2-3), in which sealing groove (2-3) a sealing ring is provided, said sealing ring being interference fitted between the socket (1-1) and the spigot (2-1).

8. Spray gun according to claim 1, characterized in that the plug (2-1) is provided on its outer side wall with a limit collar (2-4), the plug (2-1) is fitted into the socket (1-1) and the limit collar (2-4) contacts or interferes with the end of the socket (1-1) when the plug is fitted into the plug hole (5-1).