CN107486364B - Integrated sealing feeding joint and spray gun - Google Patents
Integrated sealing feeding joint and spray gun Download PDFInfo
- Publication number
- CN107486364B CN107486364B CN201710928529.3A CN201710928529A CN107486364B CN 107486364 B CN107486364 B CN 107486364B CN 201710928529 A CN201710928529 A CN 201710928529A CN 107486364 B CN107486364 B CN 107486364B
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- metal
- main body
- joint
- spray gun
- sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/01—Spray pistols, discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
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Abstract
The invention discloses an integrated sealing feeding joint which comprises a metal joint main body, wherein the head of the metal joint main body is provided with a groove, and a non-metal high polymer material is injected into the groove to form a non-metal insert so that the non-metal insert can be embedded into the head of the metal joint main body; the top of the non-metal insert protrudes out of the head of the metal joint main body, and the outer diameter of the non-metal insert is consistent with that of the metal joint main body; the end surface of the non-metal insert is used as a sealing surface matched with the end surface of the kettle joint of the upper kettle; external threads are formed on the non-metal insert and the metal joint body, and the external threads of the non-metal insert and the external threads of the metal joint body form a continuous thread structure to serve as the external threads of the feeding joint. According to the invention, the wear-resistant nonmetal insert with sealing performance is embedded in the head part of the metal joint main body, so that the problems of leakage, sealing ring loss, abrasion and the like can be effectively prevented. The invention also discloses a spray gun with the integrated sealing feeding joint.
Description
Technical Field
The invention relates to a joint, in particular to an integrated sealing feeding joint. The invention also relates to a spray gun with an integrated sealed feed connection.
Background
The upper pot of the spray gun is used to contain liquid spray material (usually paint). In the existing spray gun, an upper kettle and a feeding connector are screwed into internal threads of a feeding hole of a gun body so as to realize fixed connection between the upper kettle and the feeding connector and the gun body. The upper kettle is matched with the inner thread of the gun body feeding hole through kettle joint threads, and meanwhile, the kettle joint end face of the upper kettle is abutted against the feeding joint end face, so that the sealing effect is achieved.
According to the spray gun with the structure, the thread of the feeding joint and the thread of the feeding hole of the gun body are respectively processed and formed, and gaps exist in thread matching, so that after the upper kettle and the feeding joint are connected with the gun body, the straightness and concentricity of the upper kettle joint and the feeding joint have deviation, the upper kettle joint and the feeding joint cannot be tightly connected, and therefore the leakage phenomenon can occur.
In addition, the upper kettle joint and the feeding joint are both made of metal materials, so that only a sealing structure with the best angle hard to touch hard can be adopted between the upper kettle joint and the feeding joint, the sealing structure is often difficult to achieve the required precision when the angle of a sealing point is processed, the process is quite complex, the cost is increased, meanwhile, the sealing requirement of a coating medium channel of the spray gun cannot be met, leakage is easy to generate, and the performance of the spray gun is directly influenced. In order to solve the problem, a sealing gasket is additionally arranged between the upper kettle connector and the feeding connector, although the sealing effect can be achieved to a certain degree, the sealing gasket is difficult to clean due to the fact that paint can be adhered to the sealing gasket, the sealing gasket is easy to lose and difficult to find in the cleaning process, the sealing gasket is also easy to abrade and age, and cannot be used for a long time, so that the service life of the spray gun is directly shortened.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated sealing feeding joint which can thoroughly solve the problem of leakage of a spray gun.
In order to solve the technical problems, the technical solution of the integrated sealing feeding joint of the invention is as follows:
the connector comprises a metal connector main body 21, wherein a groove is formed in the head of the metal connector main body 21, and a non-metal high polymer material is injected into the groove to form a non-metal insert 22, so that the non-metal insert 22 can be embedded into the head of the metal connector main body 21; the top of the non-metal insert 22 protrudes out of the head of the metal joint main body 21, and the outer diameter of the non-metal insert 22 is consistent with that of the metal joint main body 21; the end surface 22-1 of the non-metal insert 22 is used as a sealing surface matched with the end surface of the kettle joint of the upper kettle; external threads are formed on the non-metal insert 22 and the metal joint body 21, and the external threads of the non-metal insert 22 and the external threads of the metal joint body 21 form a continuous thread structure as the external threads of the feed joint.
The end surface 22-1 of the non-metal insert 22 is a conical surface with a large outside and a small inside.
The external thread of the non-metal insert 22 and the external thread 21-3 of the metal joint main body 21 are machined at one time.
The neck portion 21-2 of the metal joint main body 21 serves as a sealing surface for mounting the seal ring 3.
The tail part 21-1 of the metal joint main body 21 serves as a discharge hole.
The non-metal insert 22 and the metal joint main body 21 are subjected to injection molding, and then the external thread of the non-metal insert 22 and the external thread 21-3 of the metal joint main body 21 are machined at one time.
The invention also provides a spray gun with an integrated sealing feeding joint, and the technical solution is as follows:
the spray gun comprises a spray gun body 4, the integrated sealing feeding connector 2 and an upper kettle 1, wherein the internal thread of the spray gun body 4 is matched and connected with the external thread of the integrated sealing feeding connector 2 and the external thread of the kettle connector of the upper kettle 1 at the same time, so that the upper kettle 1, the feeding connector 2 and the spray gun body 4 are fixedly connected; the end surface 22-1 of the non-metal insert 22 is matched with the end surface of the kettle joint of the upper kettle 1; the tail part of the integrated sealing feeding joint 2 is screwed into the inner part of the spray gun body 4.
And a sealing gasket 3 is arranged between the tail part of the feeding joint and the spray gun body 4 so as to realize the sealing between the feeding joint and the spray gun body 4.
The invention can achieve the technical effects that:
the invention has the following characteristics:
1. the sealing end face is made of a non-metal high-polymer wear-resistant material, the product stability is good, the durability is long, the service life is long, and the product quality is improved.
2. The integral structure of the high-molecular wear-resistant material and the metal feeding joint has the advantages of ingenious conception, unique structure, high product stability and good sealing effect.
3. The processing technology is perfect, the processing precision is improved, the sealing point is effectively controlled, and the sealing effect is good, so that the long-term stability of the product is ensured, and the original qualification rate of 80 percent is improved to the current qualification rate of 100 percent.
4. The problems that the quality of the sealing end face and the joint main body is not up to the requirement due to the fact that metal materials are used for hard-to-hard sealing, the product is difficult to keep stable, and the grade is difficult to improve are thoroughly solved.
5. The sealing end face is injected to the head of the joint main body, so that the sealing ring cannot be separated, and the problem that the whole spray gun cannot be used due to the fact that the sealing ring is lost in the process of cleaning the sealing ring can be avoided.
6. The upper kettle joint and the feeding joint can be made of 304 stainless steel materials, are suitable for water-based coating media such as water paint and the like, and have wide application range and high product grade.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic exterior view of an integral sealing feeder joint of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an exploded schematic view of the present invention;
FIG. 4 is a schematic cross-sectional view of a spray gun employing the integrally sealed feed connection of the present invention;
FIG. 5 is an exploded schematic view of the spray gun of the present invention;
fig. 6 is a partially enlarged schematic view of fig. 4.
The reference numbers in the figures illustrate:
1 is an upper kettle, 2 is a feeding joint,
3 is a sealing ring, 4 is a gun body,
21 is a metal joint main body, 22 is a non-metal insert,
21-1 is the tail part of the metal joint main body, 21-2 is the neck part of the metal joint main body,
21-3 is the external thread of the metal joint main body, and 22-1 is the end face of the non-metal insert.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of protection of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
As shown in fig. 1 to 3, the integrated sealing feeding joint of the present invention includes a metal joint main body 21, wherein an annular groove is formed at a head of the metal joint main body 21, and a wear-resistant non-metal high polymer material is injected into the annular groove to form a non-metal insert 22, so that the non-metal insert 22 can be embedded into the head of the metal joint main body 21;
the top of the non-metal insert 22 protrudes out of the head of the metal joint main body 21, and the outer diameter of the non-metal insert 22 is consistent with that of the metal joint main body 21;
the end surface 22-1 of the non-metal insert 22 forms a conical surface with a large outside and a small inside, and the end surface 22-1 of the non-metal insert 22 is used as a sealing surface matched with the end surface of the kettle connector of the upper kettle;
external threads are formed on the non-metal insert 22 and the metal joint main body 21, and the external threads of the non-metal insert 22 and the external threads 21-3 of the metal joint main body 21 are machined at one time, so that the external threads of the non-metal insert 22 and the external threads of the metal joint main body 21 form a continuous thread structure to be used as external threads of a feeding joint;
the neck 21-2 of the metal joint main body 21 serves as a sealing surface for mounting the seal ring 3;
the tail part 21-1 of the metal joint main body 21 is used as a discharge hole.
The nonmetal insert 22 of the invention is embedded in the head part of the metal joint main body 21, so that the nonmetal insert 22 and the metal joint main body 21 can be firmly fixed and connected into a whole and can not fall off.
The external thread of the feeding joint is connected with the internal thread of the spray gun body 4, and the internal thread of the spray gun body 4 is simultaneously matched and connected with the external thread of the feeding joint and the external thread of the kettle joint of the upper kettle, so that the upper kettle 1, the feeding joint 2 and the spray gun body 4 are fixedly connected; the end surface 22-1 of the non-metal insert 22 is matched with the end surface of the kettle joint of the upper kettle 1; because the non-metal insert 22 is made of wear-resistant non-metal high polymer material, repeated disassembly of the upper kettle cannot cause abrasion, and the non-metal high polymer material has good plasticity and can completely achieve the sealing effect.
The main body of the invention is made of metal material, the nonmetal insert 22 connected with the upper kettle is made of wear-resistant nonmetal high polymer material, the metal material and the nonmetal high polymer material are matched, the weather is seamless, one is hard and the other is soft, and the better sealing effect can be achieved, so that the bad effect of hard-to-hard contact sealing caused by that the metal material and the nonmetal high polymer material are both made of metal materials can be avoided, and the longer the contact time of the metal material and the nonmetal high polymer material is, the tighter the sealing is, and the better the effect is.
The feeding joint adopts a manufacturing method of firstly performing injection molding and then molding an external thread structure, and the external thread of the feeding joint is formed by one-step processing of the contact sealing point of the non-metal insert 22, so that the concentricity and straightness accuracy can be improved, and the performance and effect of the product are greatly improved.
According to the invention, the nonmetal insert 22 and the metal joint main body 21 of the feeding joint are combined together, so that paint is easy to clean, the nonmetal insert 22 cannot fall out or be lost, and the service life of the high polymer wear-resistant material is ultra-long.
As shown in fig. 4 to 6, the spray gun with an integrated sealing feeding connector of the present invention comprises a spray gun body 4, a sealing gasket 3, an integrated sealing feeding connector 2, and an upper kettle 1, wherein the internal thread of the spray gun body 4 is simultaneously connected with the external thread of the feeding connector 2 and the external thread of the kettle connector of the upper kettle 1 in a matching manner, so as to realize the fixed connection between the upper kettle 1 and the feeding connector 2 with the spray gun body 4; the end surface 22-1 of the non-metal insert 22 is matched with the end surface of the kettle joint of the upper kettle 1 to form good sealing;
the tail part of the feeding joint is screwed into the spray gun body 4, and a sealing gasket 3 is arranged between the tail part of the feeding joint and the spray gun body 4 so as to realize the sealing between the feeding joint and the spray gun body 4.
When the spraying device is used, a coating medium in the upper kettle 1 flows through the internal channel of the feeding connector 2 to reach the head of the spraying gun, atomization is formed, and the spraying effect is achieved.
The wear-resistant nonmetal insert 22 with sealing performance is embedded in the head of the metal joint main body 21, so that the problems of leakage, seal ring dropping, abrasion and the like can be effectively prevented, the cleaning and the cleaning are convenient, the paint jumping phenomenon of a spray gun caused by leakage due to the fact that the seal is carried out at a hard-to-hard angle between metal materials is effectively changed, products are directly scrapped, and meanwhile, the leakage phenomenon caused by the problems of straightness and concentricity is also avoided. The product stability is improved, and the qualification rate is improved from 80 percent of the original metal hard-to-hard sealing to the current 100 percent of qualification rate.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (6)
1. The utility model provides a feed connection is sealed to integral type which characterized in that: the connector comprises a metal connector main body (21), wherein a groove is formed in the head of the metal connector main body (21), and a nonmetal high polymer material is injected into the groove to form a nonmetal insert (22) so that the nonmetal insert (22) can be embedded into the head of the metal connector main body (21);
the top of the non-metal insert (22) protrudes out of the head of the metal joint main body (21), and the outer diameter of the non-metal insert (22) is consistent with that of the metal joint main body (21);
the end surface (22-1) of the non-metal insert (22) is used as a sealing surface matched with the end surface of the kettle joint of the upper kettle;
external threads are formed on the non-metal insert (22) and the metal joint main body (21), and the external threads of the non-metal insert (22) and the external threads of the metal joint main body (21) form a continuous thread structure to serve as the external threads of the feeding joint;
the end face (22-1) of the non-metal insert (22) is a conical surface with a large outer part and a small inner part;
the tail part (21-1) of the metal joint main body (21) is used as a discharge hole.
2. The integrated sealing feed fitting of claim 1, wherein: the external thread of the non-metal insert (22) and the external thread (21-3) of the metal joint main body (21) are machined at one time.
3. The integrated sealing feed fitting of claim 1, wherein: the neck part (21-2) of the metal joint main body (21) is used as a sealing surface for mounting the sealing ring (3).
4. The integrated sealing feed fitting of claim 1, wherein: the non-metal insert (22) and the metal joint main body (21) are subjected to injection molding, and then the external threads of the non-metal insert (22) and the external threads (21-3) of the metal joint main body (21) are machined at one time.
5. A spray gun employing the one-piece sealed feed connection of claim 1, wherein: the spray gun comprises a spray gun body (4), the integrated sealing feeding connector (2) and an upper kettle (1), wherein the internal thread of the spray gun body (4) is matched and connected with the external thread of the integrated sealing feeding connector (2) and the external thread of the kettle connector of the upper kettle (1) at the same time, so that the upper kettle (1), the feeding connector (2) and the spray gun body (4) are fixedly connected; the end surface (22-1) of the non-metal insert (22) is matched with the end surface of the kettle joint of the upper kettle (1); the tail part of the integrated sealing feeding joint (2) is screwed into the spray gun body (4).
6. The spray gun of claim 5, wherein: a sealing gasket (3) is arranged between the tail of the feeding joint and the spray gun body (4) to realize sealing between the feeding joint and the spray gun body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928529.3A CN107486364B (en) | 2017-10-09 | 2017-10-09 | Integrated sealing feeding joint and spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928529.3A CN107486364B (en) | 2017-10-09 | 2017-10-09 | Integrated sealing feeding joint and spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107486364A CN107486364A (en) | 2017-12-19 |
| CN107486364B true CN107486364B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928529.3A Active CN107486364B (en) | 2017-10-09 | 2017-10-09 | Integrated sealing feeding joint and spray gun |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB646788A (en) * | 1946-08-21 | 1950-11-29 | Brockway Company | Improvements in or relating to pipe couplings |
| US5207459A (en) * | 1991-07-11 | 1993-05-04 | Dresser Industries, Inc. | Transition coupling for pipes |
| KR20050105647A (en) * | 2004-05-01 | 2005-11-08 | 정성이 | Thread sealant |
| CN103406223A (en) * | 2013-08-14 | 2013-11-27 | 浙江奥利达气动工具股份有限公司 | Spray gun provided with feeding connector having sealing function |
| CN204372391U (en) * | 2015-01-06 | 2015-06-03 | 湖北三江航天红阳机电有限公司 | A kind of pressure test pipeline conversion adapter |
| CN204573375U (en) * | 2015-03-20 | 2015-08-19 | 诸暨市锦牛塑胶科技有限公司 | A kind of pipe joint sealing structure |
| CN207709276U (en) * | 2017-10-09 | 2018-08-10 | 浙江奥利达气动工具股份有限公司 | Integrated sealing inlet connector and spray gun |
-
2017
- 2017-10-09 CN CN201710928529.3A patent/CN107486364B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB646788A (en) * | 1946-08-21 | 1950-11-29 | Brockway Company | Improvements in or relating to pipe couplings |
| US5207459A (en) * | 1991-07-11 | 1993-05-04 | Dresser Industries, Inc. | Transition coupling for pipes |
| KR20050105647A (en) * | 2004-05-01 | 2005-11-08 | 정성이 | Thread sealant |
| CN103406223A (en) * | 2013-08-14 | 2013-11-27 | 浙江奥利达气动工具股份有限公司 | Spray gun provided with feeding connector having sealing function |
| CN204372391U (en) * | 2015-01-06 | 2015-06-03 | 湖北三江航天红阳机电有限公司 | A kind of pressure test pipeline conversion adapter |
| CN204573375U (en) * | 2015-03-20 | 2015-08-19 | 诸暨市锦牛塑胶科技有限公司 | A kind of pipe joint sealing structure |
| CN207709276U (en) * | 2017-10-09 | 2018-08-10 | 浙江奥利达气动工具股份有限公司 | Integrated sealing inlet connector and spray gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107486364A (en) | 2017-12-19 |
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