CN210585465U

CN210585465U - Connecting assembly of spray gun and kettle body and spray gun with same

Info

Publication number: CN210585465U
Application number: CN201921312560.5U
Authority: CN
Inventors: 蒋以宸
Original assignee: ZHEJIANG AUARITA PNEUMATIC TOOLS LLC
Current assignee: ZHEJIANG AUARITA PNEUMATIC TOOLS LLC
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-22
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a spray gun and the coupling assembling of the kettle body and have the spray gun of this subassembly. The connecting assembly of the spray gun and the kettle body comprises a connecting seat and a plug, a connecting hole is formed in the connecting seat, one end of the plug is connected with a discharge hole of the kettle body, the other end of the plug is inserted into the connecting hole, a first clamping groove is formed in the outer side surface of the plug, a first mounting cavity is formed in the connecting seat, a first clamping piece and a first elastic piece are installed in the first mounting cavity, and the first clamping piece is clamped in the first clamping groove under the action of the first elastic piece. The connecting component of the spray gun and the kettle body can quickly connect the spray gun and the kettle body, and has convenient connection and disassembly and long service life. Meanwhile, when the connecting component is arranged on the side surface of the gun body, the kettle body can conveniently rotate relative to the gun body and can be clamped and fixed with the connecting seat, so that the kettle body can be kept in an upright state.

Description

Connecting assembly of spray gun and kettle body and spray gun with same

Technical Field

The utility model relates to a spray gun, in particular to a spray gun and a connecting component of a kettle body and a spray gun with the component.

Background

Spray guns are tools used for spraying paint. The rear end of the spray gun is connected with compressed gas, and a kettle body for storing spray paint is arranged on the spray gun. When the spray gun works, the spray paint is taken out from the head of the spray gun through compressed gas and atomized, so that the effect of uniform spraying is achieved.

The prior kettle body is shown as Chinese patent No. 201420718662.8, the kettle body is mostly connected on the kettle body through screw threads, when the kettle is installed, the kettle body needs to be fixed on the spray gun by rotating at least four or five circles, the operation is troublesome, and the time spent on dismounting the kettle body is long. Meanwhile, the threads are easy to wear along with the increase of the service time, so that the meshing effect and the sealing performance are influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a coupling assembling of spray gun and kettle body can be connected spray gun and kettle body fast, connects, dismantles the convenience, long service life.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a coupling assembling of spray gun and kettle body, includes connecting seat and plug, is provided with the connecting hole in the connecting seat, and plug one end is connected with kettle body discharge gate, and the plug other end is inserted and is established in the connecting hole, and the plug lateral surface is provided with draw-in groove one, has seted up installation cavity one in the connecting seat, installs fastener one and elastic component one in the installation cavity one, and fastener one blocks under the effect of elastic component one in draw-in groove one.

Through the technical scheme, when the kettle is used, one end of the plug is connected with the discharge hole of the kettle body, the other end of the plug is inserted into the connecting hole, and the plug is locked in the connecting seat through the clamping of the first clamping piece and the first clamping groove, so that the kettle body is connected with the spray gun. When in installation, the plug is inserted into the connecting seat, and the installation is convenient. Meanwhile, one end of the clamping piece is abutted against the elastic piece, and the first clamping piece can axially slide in the first mounting cavity, so that when the kettle body is required to be detached from the spray gun, the kettle body is only required to be pulled out to the outer side of the spray gun. When the kettle body is pulled out of the spray gun, the clamping piece can slide in the direction away from the first clamping groove under the action of external force to separate from the first clamping groove, so that the plug can be conveniently separated from the connecting seat.

The kettle body is connected to the spray gun in a plugging and clamping mode, so that the kettle is more convenient to mount and dismount, can be completed through plugging and pulling, and has a longer service life.

The plug and the kettle body can be connected through threads. Meanwhile, the plug can also be made of plastic, and the kettle body and the plug are integrally formed in an injection molding mode. In addition, the joint and the kettle body can be combined in a melting piece mode, namely the kettle body is integrally fixed at one end of the plug in an injection molding mode, so that the plug and the kettle body are connected and fixed together. In addition, the kettle body can also be made of metal and then connected with the plug in a welding mode.

Preferably, a first guide surface is arranged on one side surface of the first engaging piece facing the first clamping groove, and the first guide surface is a conical surface, a spherical surface or a wedge-shaped surface.

Through above-mentioned technical scheme, the fastener one is conical, spherical or wedge towards one side of draw-in groove, can block into draw-in groove one to prevent that the plug from deviating from the connecting seat in normal paint spraying process. When outwards extracting the plug, toper, sphere or wedge face contradict with the draw-in groove side simultaneously, and when the plug outwards removed under the pulling force effect, relative slip can take place between draw-in groove and the fastener to make the fastener slide earlier on the installation cavity, make the plug deviate from smoothly.

Preferably, the side surface of the first clamping groove close to the gun body is a second guide surface, or the side surfaces of the first clamping groove on two sides are both the second guide surfaces, and the second guide surfaces are conical surfaces or spherical surfaces.

Through above-mentioned technical scheme, the side of the draw-in groove one side that is close to the spray gun is conical surface or spherical surface for the fastener is once deviate from the draw-in groove convenient more, smooth and easy temporarily. The two sides of the first clamping groove are conical surfaces or spherical surfaces, so that the depth of the first clamping piece clamped into the first clamping groove can be increased, and the clamping effect is better after clamping.

Preferably, a middle part of the installation cavity is communicated with one side of the connecting hole, the first clamping piece further comprises a clamping block and a push rod, the first elastic piece is abutted against one side of the clamping block, and the push rod is arranged on the other side of the clamping block and extends out of the installation cavity.

Through above-mentioned technical scheme, the fixture block is the column, has better locking effect when the fixture block is in draw-in groove one. If the push rod is not used for pushing the clamping block, the plug cannot be separated from the connecting seat, so that the problem that the plug is separated from the connecting seat due to the fact that the kettle body is hooked to other objects and axial force is applied to the kettle body in the paint spraying process is avoided. When inserting the plug, promote the fixture block through the push rod earlier for the fixture block is in installation cavity one side, avoids fixture block and plug to take place to interfere, and after the plug inserted the connecting hole, loosen the push rod, the fixture block card is gone into to draw-in groove one in, makes the plug restricted in the connecting seat. When the plug is required to be separated from the connecting seat, the push rod is required to be pressed down first, so that the clamping block is withdrawn from the first clamping groove, and then the plug can be smoothly separated from the connecting seat.

Preferably, the plug end is provided with a chamfer or fillet.

Through above-mentioned technical scheme, the setting of chamfer or fillet for when the plug inserted in the connecting seat, it is more smooth and easy to insert.

Preferably, a plurality of second clamping grooves are circumferentially formed in the outer side face of the plug, a second mounting cavity is formed in the connecting seat, a second clamping piece and a second elastic piece are mounted in the second mounting cavity, and the second clamping piece is clamped in the second clamping grooves under the action of the second elastic piece.

Through the technical scheme, the clamping can be realized between the second clamping piece and the second clamping groove, so that circumferential positioning can be realized while circumferential rotation can be generated between the plug and the connecting seat.

When the connecting assembly and the kettle body are arranged on the side surface of the spray gun, if the clamping piece II and the clamping groove II are not arranged, the kettle body can rotate under the action of gravity, so that the kettle body is always positioned below the plug, and the coating in the kettle body can not normally flow into the gun body.

If simply carry out circumference with plug and connecting seat and fix, when the muzzle of spray gun during towards the top spraying, the kettle body can be in the tilt state, kettle body top position is less than kettle body discharge gate position for the coating in the kettle body also can't normally flow out and flow into in the spray gun from kettle body discharge gate.

After the second clamping piece and the second clamping groove are arranged, the second clamping piece can be clamped into the second clamping groove under the action of the second elastic piece to position the circumferential position of the kettle body. And meanwhile, when the kettle body is pulled, the second clamping piece can be withdrawn from the second clamping groove, and is clamped into the next clamping groove along the rotation direction of the kettle body to fix the position of the kettle body. When the spray gun sprays towards the upper part, the circumferential position of the kettle body relative to the gun body can be changed by pulling the kettle body, the position of the top of the kettle body can be higher than the position of a discharge hole of the kettle body, and the paint in the kettle body can normally enter the spray gun.

Preferably, a plurality of convex teeth are circumferentially arranged on the outer side surface of the plug, and a second clamping groove is formed between every two adjacent convex teeth.

Preferably, a sealing groove is arranged in the connecting hole, and a sealing ring is arranged in the sealing groove.

Through the technical scheme, the sealing performance between the plug and the connecting hole can be improved, and the coating is prevented from leaking between the plug and the connecting hole.

Another object of the utility model is to provide a spray gun, can dismantle, install comparatively conveniently between the kettle body and the spray gun.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a spray gun, includes the rifle body, still includes above-mentioned coupling assembling, and the connecting seat is integrative to be set up on the rifle body, perhaps connecting seat fixed connection perhaps can dismantle and connect on the rifle body.

Through the technical scheme, the connection between the spray gun and the kettle body can be quickly realized, the use is more convenient, and meanwhile, the service life is better.

Meanwhile, the connecting and fixing mode between the connecting seat and the spray gun is reasonably selected according to the position of the connecting seat. Most of the existing spray guns are die-cast aluminum parts, and when the connecting seat is positioned at the upper end or the lower end of the spray gun, the connecting seat can be preferentially in a die-casting mode and integrally formed on the gun body. When the connecting seat sets up in the rifle body side, the connecting seat can be preferentially through the components of a whole that can function independently setting, connect, fix on the rifle body through modes such as grafting, interference fit, threaded connection.

Preferably, the connecting seat is arranged on the side surface of the gun body and is vertical to the side surface of the gun body.

Through the technical scheme, the circumferential position of the kettle body can be adjusted, so that the circumferential position of the kettle body can be conveniently adjusted in the using process of the spray gun, the position of the top of the kettle body is always higher than the position of the discharge hole of the kettle body, and the coating can be smoothly fed into the spray gun.

Preferably, the plug and the kettle body are connected into a whole through threads, or the plug and the kettle body are integrally injection-molded, or the kettle body is fixed at one end of the plug through an injection molding mode.

Through the technical scheme, the plug and the kettle body are connected and detached conveniently as a whole in the using process. Meanwhile, the plug can be connected with the kettle body by using various materials and in various modes. When the plug adopts a plastic part, the plug can be connected with the kettle body through threads, and can also be connected with the kettle body in an integral injection molding mode. When the plug is made of metal materials, the plug and the kettle body can be connected by threads, and the kettle body can be directly injected at the end part of the plug, so that the kettle body is fixed on the plug.

Compared with the prior art, the beneficial effects of the utility model are that: the kettle body is fixed on the spray gun in a plugging and clamping mode, so that the kettle body and the spray gun are more conveniently connected, and meanwhile, the plug and the connecting seat have a longer service life. And the circumferential position of the kettle body can be conveniently adjusted and fixed, so that the coating in the kettle body can smoothly flow into the spray gun all the time no matter which direction the gun head of the spray gun faces.

Drawings

Fig. 1 is an exploded view of the first embodiment;

FIG. 2 is an exploded view of a connector according to one embodiment;

FIG. 3 is an exploded view of another perspective of the connecting assembly according to one embodiment;

FIG. 4 is an exploded view of the connecting socket according to one embodiment;

FIG. 5 is a schematic cross-sectional view of a connecting assembly according to one embodiment;

FIG. 6 is a schematic cross-sectional view of a connecting socket according to an embodiment;

FIG. 7 is a schematic cross-sectional view taken at A-A of FIG. 6;

FIG. 8 is a schematic cross-sectional view taken at B-B of FIG. 6;

FIG. 9 is a schematic cross-sectional view of a plug according to an embodiment;

FIG. 10 is an exploded view of the second embodiment;

FIG. 11 is a schematic cross-sectional view of a connecting member according to a second embodiment.

Reference numerals: 1. a connecting seat; 2. a plug; 3. connecting holes; 4. a first clamping groove; 5. mounting a first cavity; 6. a first clamping piece; 7. a first elastic part; 8. a clamping block; 9. a push rod; 10. a second clamping groove; 11. a second mounting cavity; 12. a second clamping piece; 13. a second elastic piece; 14. a convex tooth; 15. a sealing groove; 16. a seal ring; 17. a gun body; 18. a first guide surface; 19. a second guide surface; 20. a kettle body; 21. chamfering; 22. a pressing block; 23. a cover plate; 24. and (4) screws.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

As shown in figure 1, the spray gun comprises a gun body 17, wherein one side of the gun body 17 is connected with a kettle body 20 through a connecting component. The connecting assembly comprises a connecting socket 1 and a plug 2. One end of the connecting seat 1 is fixed on the gun body 17 through threads, a connecting hole 3 penetrating through the connecting seat 1 is formed in the connecting seat 1, and the connecting hole 3 is communicated with a coating inlet on the gun body 17. One end of the plug 2 is connected with a discharge hole of the kettle body 20, the plug 2 is made of metal materials, the kettle body 20 is made of plastics, the kettle body 20 is fixed at one end of the plug 2 in an injection molding mode in a secondary injection molding mode, and one end of the plug 2 is embedded into the kettle body 20. The plug 2 and the kettle body 20 can be connected through threads, or the kettle body 20 and the plug can be fixed at the end of the plug 2 through an integral injection molding mode. The other end of the plug 2 is inserted into the connecting hole 3 of the connecting base 1, and the paint in the kettle body 20 is led into the connecting base 1.

A first installation cavity 5 is formed in the connecting seat 1, the first installation cavity 5 is perpendicular to the connecting hole 3, the first installation cavity 5 is located on the lower side of the connecting hole 3, and the middle of the first installation cavity 5 is communicated with the connecting hole 3. The first clamping piece 6 and the first elastic piece 7 are arranged in the first mounting cavity 5. The first clamping piece 6 comprises a clamping block 8 and a push rod 9, the push rod 9 is integrally arranged on one side of the clamping block 8, and the first elastic piece 7 abuts against the other side of the clamping block 8. The first installation cavity 5 is in a stepped hole shape, a plug is installed at an opening at one end with a large inner diameter of the stepped hole and used for sealing the first installation cavity 5, and the first spring and the first clamping piece 6 are always located in the first installation cavity 5. One end of the push rod 9 extends out of the end opening with the smaller inner diameter of the first installation cavity 5, and the extending end of the push rod 9 is connected with a pressing block 22 in a threaded mode. When the clamping piece I is in the initial state, the clamping block 8 is located at the communication position of the first installation cavity 5 and the connecting hole 3, and the clamping block 8 protrudes out of the inner wall of the connecting hole 3. When the pressing block 22 is pressed, the pressing block 22 can push the push rod 9 to slide along the axial direction of the first mounting cavity 5. The push rod 9 slides and simultaneously drives the clamping block 8 to slide, so that the clamping block 8 moves towards one side of the communication part of the first mounting cavity 5 and the connecting hole 3, and the clamping block 8 does not protrude out of the inner wall of the connecting hole 3.

The peripheral surface of the plug 2 is provided with a first clamping groove 4, the first clamping groove 4 is annular, and when the plug 2 is inserted into the connecting seat 1, the clamping block 8 is clamped in the first clamping groove 4, so that the plug 2 is prevented from being separated from the connecting seat 1. When needing to make plug 2 insert in connecting seat 1, press push rod 9 earlier, be fixture block 8 along the sliding of installation cavity 5 axis direction, make fixture block 8 no longer be located the through department of installation cavity 5 and connecting hole 3, then insert plug 2 front end in connecting seat 1 completely, then loosen push rod 9, fixture block 8 resets under the effect of elastic component 7, in fixture block 8 card is gone into draw-in groove 4 to die plug 2 lock in connecting seat 1. When the plug 2 needs to be withdrawn from the connecting seat 1, the push rod 9 is pressed first, so that the clamping block 8 is withdrawn from the first clamping groove 4, and then the plug 2 is pulled out of the connecting seat 1.

A first guide surface 18 is arranged on the surface of the first clamping block 8 facing the first clamping groove 4, and the first guide surface 18 is a conical surface, a spherical surface or a wedge-shaped surface. The arrangement of the guide surface can facilitate the clamping block 8 to be clamped into the first clamping groove 4, when the front end of the plug 2 is not completely inserted into the connecting seat 1, due to the existence of the guide surface, the clamping block 8 can be partially clamped into the first clamping groove, and meanwhile, the first clamping block continues to slide into the first clamping groove 4 under the action of the first elastic element 7.

Correspondingly, two guide surfaces 19 can be arranged on two sides of the first clamping groove 4, so that the clamping block 8 can be conveniently clamped into the first clamping groove 4 on one hand, and the depth of the clamping block 8 clamped into the first clamping groove 4 can be increased on the other hand.

A second mounting cavity 11 is further formed in the connecting seat 1, and a second clamping piece 12 and a second elastic piece 13 are mounted in the mounting cavity. The bottom of the second mounting cavity 11 is communicated with the part of the connecting hole 3, the second clamping piece 12 is positioned at the bottom of the second mounting cavity 11 under the action of the second elastic piece 13, and one side of the second clamping piece 12 protrudes out of the inner wall of the connecting hole 3. A plurality of convex teeth 14 are uniformly distributed on the peripheral surface of the plug 2 in the circumferential direction, and a second clamping groove 10 is formed between every two adjacent convex teeth 14. When the plug 2 is installed in the connecting seat 1, the second engaging piece 12 is clamped into the second clamping groove 10, so that the circumferential position of the plug 2 is limited.

In the second embodiment, a spray gun is provided,

as shown in fig. 10 and 11, the second embodiment is different from the first embodiment in that the first mounting cavity 5 in the second embodiment is similar to the second mounting cavity 11 in the first embodiment in structure. The first mounting cavity 5 and the second mounting cavity 11 are arranged side by side, and the axes of the first mounting cavity 5 and the second mounting cavity 11 and the axis of the connecting hole 3 are in the same plane and are perpendicular to each other. The bottom of the first installation cavity 5 is communicated with the connecting hole 3, the first clamping piece 6 can be made of steel balls, the first clamping piece 6 is located at the bottom of the first installation cavity 5 under the action of the first elastic piece 7, and a part of the first clamping piece 6 protrudes out of the inner wall of the connecting hole 3. The lower ends of the first mounting cavity 5 and the second mounting cavity 11 are sealed through a cover plate 23, and the cover plate 23 is fixed on the connecting base 1 through a screw 24.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. A connecting component of a spray gun and a kettle body is characterized in that: including connecting seat (1) and plug (2), be provided with connecting hole (3) in connecting seat (1), plug (2) one end is connected with the kettle body (20) discharge gate, plug (2) other end is inserted and is established in connecting hole (3), plug (2) lateral surface is provided with draw-in groove (4), seted up installation cavity (5) in connecting seat (1), install fastener (6) and elastic component (7) in installation cavity (5), fastener (6) block under the effect of elastic component (7) in draw-in groove (4).

2. A connection assembly of a spray gun and a kettle body as claimed in claim 1, which is characterized in that: one side surface of the first clamping piece (6) facing the first clamping groove (4) is provided with a first guide surface (18), and the first guide surface (18) is a conical surface, a spherical surface or a wedge-shaped surface.

3. A connection assembly of a spray gun and a kettle body as claimed in claim 1, which is characterized in that: the side surface of one side of the first clamping groove (4) close to the gun body (17) is a second guide surface (19), or the side surfaces of the two sides of the first clamping groove (4) are both the second guide surfaces (19), and the second guide surfaces (19) are conical surfaces or spherical surfaces.

4. A connection assembly of a spray gun and a kettle body as claimed in claim 1, which is characterized in that: the middle part of the first installation cavity (5) is communicated with one side of the connecting hole (3), the first clamping piece (6) further comprises a clamping block (8) and a push rod (9), the first elastic piece (7) is abutted against one side of the clamping block (8), and the push rod (9) is arranged on the other side of the clamping block (8) and extends out of the first installation cavity (5).

5. A connection assembly of a spray gun and a kettle body as claimed in claim 4, which is characterized in that: the end of the plug (2) is provided with a chamfer (21) or a fillet.

6. A connection assembly of a spray gun and a kettle body as claimed in claim 1, which is characterized in that: a plurality of second clamping grooves (10) are circumferentially formed in the outer side surface of the plug (2), a second mounting cavity (11) is formed in the connecting seat (1), a second clamping piece (12) and a second elastic piece (13) are mounted in the second mounting cavity (11), and the second clamping piece (12) is clamped in the second clamping grooves (10) under the action of the second elastic piece (13).

7. A connection assembly of a spray gun and a kettle body as claimed in claim 6, which is characterized in that: a plurality of convex teeth (14) are circumferentially arranged on the outer side surface of the plug (2), and a second clamping groove (10) is formed between every two adjacent convex teeth (14).

8. A connection assembly of a spray gun and a kettle body as claimed in claim 1, which is characterized in that: a sealing groove (15) is arranged in the connecting hole (3), and a sealing ring (16) is arranged in the sealing groove (15).

9. A spray gun, includes the rifle body (17), characterized by: the spray gun and spray head connecting assembly further comprises the spray gun and spray head connecting assembly as claimed in any one of claims 1-8, wherein the connecting base (1) is integrally arranged on the gun body (17), or the connecting base (1) is fixedly connected or detachably connected to the gun body (17).

10. A spray gun as claimed in claim 9, wherein: the connecting seat (1) is arranged on the side surface of the gun body (17) and is vertical to the side surface of the gun body (17).

11. A spray gun as claimed in claim 9, wherein: the plug (2) and the kettle body (20) are connected into a whole through threads, or the plug (2) and the kettle body (20) are integrally formed through injection molding, or the kettle body (20) is fixed at one end of the plug (2) through injection molding.