CN215744212U

CN215744212U - Switching mechanism for connecting spray gun and supply cup

Info

Publication number: CN215744212U
Application number: CN202122267073.5U
Authority: CN
Inventors: 肖云
Original assignee: Qingdao Hanbai Plastic Technology Co ltd
Current assignee: Qingdao Hanbai Plastic Technology Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-08
Anticipated expiration: 2031-09-18
Also published as: WO2023040439A1

Abstract

The utility model discloses a transfer mechanism for connecting a spray gun and a supply cup, which comprises a sealing connector and a base for forming a fluid circulation channel between the supply cup and the spray gun, and at least two first Locking part, a second locking part is arranged between two adjacent first locking parts, the base is locked with the first connecting part on the spray gun through the first locking part, the second locking part, the base A passageway is arranged in the middle of the sealer, and the sealing connector is connected with the base through the passageway. And the utility model is made of metal material, and the metal locking connection mechanism wraps the convex part of the spray gun barrel in the plastic spray gun nozzle assembly, which can protect the plastic nozzle part of the spray gun as much as possible in the case of misoperation; the metal locking connection mechanism It can be flexibly selected according to the shape of the head of the spray cup cover, and the same spray gun can be used to realize the connection between different types of fluid supply cups and spray guns by replacing the sealing connectors of different shapes.

Description

Switching mechanism for connecting spray gun and supply cup

Technical Field

The present invention relates to fluid supply for paint spray guns, and more particularly to an adapter for connecting a spray gun to a supply cup.

Background

When the spray gun is used, paint in the spray cup is sprayed out through the spray nozzle, the head of the existing spray gun is of a plastic structure, and the head of the spray gun can generate plastic deformation such as friction scratch and outward expansion along with the increase of the use times, so that the sealing requirement cannot be met. Meanwhile, when the spray gun is used, an operator needs to swing in all angular directions, when the operator encounters a sharp or too hard object in a fault, the spray gun head protruding from the joint of the spray cup is easily broken, so that economic loss is caused, and the situation is easy to occur in a narrow space. In addition, the head of the existing plastic spray gun can only be matched with cup covers in certain shapes, the requirements of cup covers in different shapes cannot be met, and the use cost can be increased by replacing the cup covers in different shapes. Therefore, the locking and connecting mechanism can prolong the service life of the spray gun and is flexibly suitable for liquid storage devices with cup covers of different shapes, and has great significance.

Accordingly, the prior art is subject to further improvement and development.

SUMMERY OF THE UTILITY MODEL

In view of the above-described deficiencies of the prior art, it is an object of the present invention to provide an adapter mechanism for connecting a spray gun and a supply cup.

In order to solve the technical problem, the scheme of the utility model comprises the following steps:

the switching mechanism comprises a sealing connecting piece and a base, wherein a fluid circulation channel is formed between the supply cup and the spray gun, at least two first locking parts are arranged on the base, a second locking part is arranged between every two adjacent first locking parts, the base is locked with the first connecting part on the spray gun through the first locking parts and the second locking parts, a passage is arranged in the middle of the base, and the sealing connecting piece is connected with the base through the passage.

The adapter mechanism, wherein the sealing connector comprises a channel for fluid circulation, a locking sealing part for connecting and locking a liquid outlet of the fluid supply cup, an insertion tube body for inserting the first connecting part, and a second connecting part matched with the base for use.

The switching mechanism, wherein, be provided with the location platform on the sealing connecting piece between above-mentioned insertion body and the second connecting portion.

The inner wall of the passage is provided with an internal thread, the second connecting part is provided with an external thread, and the internal thread is matched with the external thread.

The adapter mechanism, wherein the locking seal portion comprises a seal groove for inserting the liquid outlet of the fluid supply cup and a locking portion for locking the fluid supply cup.

The first locking portion comprises a locking arm fixedly connected with the base and a convex lip which is positioned on the locking arm and protrudes towards the axis direction of the base.

In the above-mentioned adapting mechanism, the second locking portion is a projection extending along the circumferential direction of the base, the lower surface of the projection is higher than the upper surface of the lip, and the projection and the lip form a locking port.

The adapter mechanism, wherein, above-mentioned base is cylindrical, and two first locking portions, two second locking portions are central symmetry and arrange.

The adapter mechanism, wherein, the end of the above-mentioned insertion tube body is provided with the toper sealed face, and this toper sealed face is with the liquid inflow mouth looks adaptation of above-mentioned first connecting portion.

The adapter mechanism, wherein the locking part is arranged at the inlet end of the sealing groove; comprising an annular wall and a pair of transverse locking projections formed on the inner wall of the annular wall.

According to the switching mechanism for connecting the spray gun and the supply cup, one end of the switching mechanism is connected with the plastic nozzle part of the spray gun, and the other end of the switching mechanism is connected with the fluid supply cup made of plastic materials, so that the service life of the spray gun can be greatly prolonged; the plastic spray gun nozzle component is made of metal materials, the metal locking connection mechanism wraps the bulge part of the spray gun tube in the plastic spray gun nozzle component, and the plastic nozzle part of the spray gun can be protected as far as possible under the condition of misoperation; the metal locking and connecting mechanism can be flexibly selected according to the shape of the head part of the cup cover of the spray cup, the same spray gun can be used, the connection between the fluid supply cups of different types and the spray gun is realized by replacing sealing connecting pieces of different shapes, and therefore the problem that the use cost is increased due to the fact that different spray guns need to be replaced when different fluid supply cups are replaced by a user is solved.

Drawings

FIG. 1 is a schematic structural diagram of a first connecting portion according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the locking of the adapter mechanism with the first connecting portion according to the present invention;

FIG. 4 is a schematic view illustrating the connection mechanism and the first connection portion being opened;

FIG. 5 is a schematic view of an adapter mechanism according to the present invention;

FIG. 6 is a schematic view of a base according to the present invention;

FIG. 7 is a top view of the base of the present invention;

FIG. 8 is a schematic view of the construction of the sealing joint of the present invention;

fig. 9 is a schematic cross-sectional view of a sealing joint according to the present invention.

Detailed Description

The present invention provides an adapter for connecting a spray gun and a supply cup, and the present invention is further described in detail below to make the purpose, technical scheme and effect of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The present invention provides an adapter mechanism for connecting a spray gun and a supply cup, as shown in fig. 1 and 2, in chinese patent No. 201780076887.4 entitled spray gun and nozzle assembly attachment, but it can only connect a supply cup of one type of adapter, and a first connecting part 10 has a general structure of: as a pipe body 1 for supplying fluid to the spray gun, a basin-type joint 2 is arranged above the pipe body, the middle part inside the basin-type joint 2 is a water sealing part corresponding to the joint, and the joint of the pipe body 1 and the basin-type joint 2 is a fluid inlet 4. The basin-type joint 2 is provided with two spiral sheets 3, and the front ends of the two spiral sheets 3 are provided with bayonets 5.

The present invention is the adapter designed according to the above-mentioned structure, and the most preferable adapter in the present invention is made of metal. As shown in fig. 3, 4, 5 and 6, it comprises a sealing connection 6 forming a fluid communication channel between the supply cup and the spray gun and a base 7, the base 7 being realized in the form of a fixed nut in this embodiment. At least two first locking parts 8 are arranged on the base 7, a second locking part 9 is arranged between every two adjacent first locking parts 8, the base 7 is locked with a first connecting part 10 on the spray gun through the first locking parts 8 and the second locking parts 9, as shown in fig. 6 and 7, a passage 11 is arranged in the middle of the base 7, and the sealing connecting part 6 is connected with the base 7 through the passage 11.

Furthermore, the sealing connector 6 comprises a channel 12 for fluid communication, a locking seal 13 for connecting and locking the outlet of the fluid supply cup, an insertion tube 14 for insertion into the first connector 10, and a second connector 15 for cooperation with the base 7. The fluid supply cups are connected by a locking seal 13 to complete the fluid communication channel, and the locking seal 13 may take a variety of forms to fit the adapter form of the fluid supply cups. The insertion tube 14 is inserted into the first connection portion 10, sealed with the fluid inlet 4 by the end of the insertion tube 14, and connected with the passage 11 by the second connection portion 15 to fixedly connect the sealing connection member 6 with the base 7.

And a positioning table 16 is arranged on the sealing connecting piece 6 inserted between the pipe body 14 and the second connecting part 15, the positioning table 16 is matched with the inner wall of the basin-type joint 2, and the outer surface of the positioning table 16 is attached to the inner wall of the basin-type joint 2, so that the sealing connecting piece 6 is connected with the first connecting part 10 more stably. And be provided with the internal thread on the above-mentioned passageway 11 inner wall, be provided with the external screw thread on the second connecting portion 15, internal thread and external screw thread looks adaptation, sealing connecting piece 6 is the spiro union promptly with base 7.

And the above-mentioned locking seal part 13 includes a seal groove 17 for insertion of a liquid outlet of the fluid supply cup and a locking part 18 for locking the fluid supply cup, the locking part 18 being provided in the seal groove 17. And the locking part 18 is provided at the inlet end of the sealing groove 17, the locking part 18 includes an annular wall and a pair of lateral locking protrusions formed on the inner wall of the annular wall, and the locking part 18 may take various forms to fit the joint form of the fluid supply cup, such as a bump, etc., which will not be described herein.

As shown in fig. 6 and 7, the first locking portion 8 includes a locking arm 22 fixedly connected to the base 6 and a lip 19 located on the locking arm 22 and protruding in the axial direction of the base 6, and may be referred to as a claw. The second locking portion 9 is a projection 20 extending along the circumferential direction of the base 6, the lower surface of the projection 20 is higher than the upper surface of the lip 19, the projection 20 and the lip 19 form a locking opening, in the locking state, the lower surface of the projection 20 is tightly clamped with the upper surface of the extension portion of the corresponding spiral piece 3, and the side surface of the projection 20 is clamped with the tip end of the bayonet 5, thereby having a limiting function. More preferably, the base 7 is cylindrical, and the two first locking portions 8 and the two second locking portions 9 are arranged in a central symmetry.

Further, as shown in fig. 8 and 9, the end of the insertion tube 14 is provided with a tapered sealing surface 21, the tapered sealing surface 21 is adapted to the liquid inlet 4 of the first connecting portion 10, and the tapered sealing surface 21 and the liquid inlet 4 complete the sealing of the fluid flowing in the fluid flow path.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims

1. An adapter mechanism for connecting a spray gun and a supply cup, comprising a sealing connector and a base that form a fluid flow channel between the supply cup and the spray gun, characterized in that the base is provided with at least two Nos. A locking part, a second locking part is arranged between two adjacent first locking parts, the base is locked with the first connecting part on the spray gun through the first locking part, the second locking part, the base A passageway is arranged in the middle of the seat, and the sealing connector is connected with the base through the passageway.

2 . The adapter mechanism according to claim 1 , wherein the sealing connector comprises a channel for fluid circulation, a locking sealing portion for connecting and locking the liquid outlet of the fluid supply cup, and for inserting the first A connecting part is inserted into the tube body and the second connecting part is used in cooperation with the base.

3 . The transfer mechanism according to claim 2 , wherein a positioning table is provided on the sealing connecting member inserted between the tubular body and the second connecting portion. 4 .

4 . The transfer mechanism according to claim 2 , wherein an inner thread is arranged on the inner wall of the passage, an outer thread is arranged on the second connecting part, and the inner thread is adapted to the outer thread. 5 .

5 . The adapter mechanism according to claim 2 , wherein the locking sealing portion comprises a sealing groove for inserting the liquid outlet of the fluid supply cup and a locking portion for locking the fluid supply cup. 6 .

6 . The transfer mechanism according to claim 2 , wherein the first locking portion comprises a locking arm fixedly connected with the base and a locking arm located on the locking arm that protrudes toward the axis of the base. 7 . Raised lips.

7 . The transfer mechanism according to claim 6 , wherein the second locking portion is a protruding block extending along the circumferential direction of the base, the lower surface of the protruding block is higher than the upper surface of the protruding lip, and the protruding block is higher than the upper surface of the protruding lip. The block and the lip form a locking opening.

8 . The transfer mechanism according to claim 2 , wherein the base is cylindrical, and the two first locking parts and the two second locking parts are arranged symmetrically in the center. 9 .

9 . The adapter mechanism according to claim 2 , wherein the end of the insertion tube body is provided with a conical sealing surface, and the conical sealing surface is adapted to the liquid inflow port of the first connecting portion. 10 .

10. The transfer mechanism according to claim 5, wherein the locking portion is provided at the inlet end of the sealing groove; comprises an annular wall and a pair of transverse locking protrusions formed on the inner wall of the annular wall; and seals the Both the connector and the base are made of metal.