CN214682380U - Feed pipe mounting structure of spray gun - Google Patents

Abstract

A feed pipe mounting structure of a spray gun comprises a gun body, a feed pipe and a clamping block. The rifle body is equipped with the feed inlet, and the inner wall of feed inlet is equipped with a pair of slot relative each other, and the outer wall of feed pipe exit end is equipped with the ring groove who extends along circumference, and in the exit end of feed pipe inserted the feed inlet, ring groove aligned a pair of slot. The front end of the clamping block is provided with a U-shaped groove to form a pair of clamping arms opposite to each other, and two sides of the U-shaped groove are provided with a pair of limiting bulges opposite to each other; a pair of clamping arms of the clamping block are clamped into the pair of inserting grooves and the annular groove respectively, and the feeding pipe is limited between the bottom of the U-shaped groove and the pair of limiting bulges. Adopt utility model's technical scheme after, 360 free rotations can be done for the rifle body of spray gun to the feed cylinder, and be convenient for install, reliable with the rifle body coupling.

Description

Feed pipe mounting structure of spray gun

Technical Field

The utility model relates to a spray gun of spraying coating.

Background

The high-pressure airless spray gun does not need to atomize the coating by air, but sprays the coating increased to high pressure from a tiny spray hole to form atomized coating. In existing high pressure airless spray guns, the feed tube is typically connected to the body of the gun by a screw connection. Wherein, rotatable nut is installed on the body top of feeder sleeve, and the rifle body lateral wall of spray gun is equipped with the feeding and connects, and the feed inlet that link up rifle body centre bore is seted up to the top end face that the feeding connects, and the outer peripheral face that the feeding connects is equipped with the external screw thread, nut and feeding connect threaded connection to be in the same place feeder sleeve and rifle body coupling. This kind of screwed connection's mode makes the feed pipe can't be for the spray gun body free rotation, when operating personnel held the spray gun and carries out multi-angle spraying operation, causes the body distortion of feed pipe very easily, has not only brought the inconvenience for staff's operation, also can cause negative effects to the life of feed pipe.

Disclosure of Invention

The utility model aims to solve the technical problem that a feeder sleeve mounting structure of spray gun is provided, wherein, 360 free rotations can be done for the rifle body of spray gun to the feeder sleeve, and the installation of being convenient for, and the rifle body coupling is reliable.

The utility model provides a feed pipe mounting structure of a spray gun, which comprises a gun body and a feed pipe; the gun body is provided with a feed port, the inner wall of the feed port is provided with a pair of slots opposite to each other, the outer wall of the outlet end of the feed pipe is provided with an annular groove extending along the circumferential direction, the outlet end of the feed pipe is inserted into the feed port, and the annular groove is aligned to the pair of slots; the feed pipe mounting structure of the spray gun further comprises a clamping block, the front end of the clamping block is provided with a U-shaped groove to form a pair of clamping arms opposite to each other, and two sides of the U-shaped groove are provided with a pair of limiting bulges opposite to each other; a pair of clamping arms of the clamping block are clamped into the pair of inserting grooves and the annular groove respectively, and the feeding pipe is limited between the bottom of the U-shaped groove and the pair of limiting bulges.

The utility model discloses at least, have following advantage:

1. the clamping block of the embodiment of the utility model can stably and reliably keep the feeding pipe in the feeding hole of the gun body, and the feeding pipe can freely rotate 360 degrees relative to the gun body of the spray gun, thereby solving the problem of inconvenient use caused by the distortion of the feeding pipe during multi-angle spraying operation and prolonging the service life of the feeding pipe;

2. when the feeding gun is installed, only the outlet end of the feeding pipe is inserted into the feeding hole of the gun body, and the clamping block is clamped into the pair of inserting grooves and the annular groove, so that the installation is rapid and convenient.

Drawings

Fig. 1 is a schematic perspective view of a high-pressure airless spray gun using a feeder pipe mounting structure according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a high-pressure airless spray gun using a feeder pipe mounting structure according to an embodiment of the present invention.

Fig. 3 shows a schematic partial explosion of a supply pipe according to an embodiment of the invention.

Fig. 4 shows a schematic perspective view of a clamping block according to an embodiment of the present invention.

Fig. 5 is a schematic front view of a fixture block according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1 to 5. According to the utility model discloses a feed pipe mounting structure of spray gun, including rifle body 1, feed pipe 2 and fixture block 3.

The gun body 1 is provided with a feed port 11 and a central hole 12 extending along the axial direction of the gun body 1, and the feed port 11 vertically penetrates through the central hole 12. The inner wall of feed inlet 11 is equipped with a pair of slot 13 opposite to each other, and the outer wall of the exit end of feed pipe 2 is equipped with annular groove 23 along circumference extension, and the exit end of feed pipe 2 inserts in feed inlet 11, and annular groove 23 aligns a pair of slot 13.

The front end of the latch 3 is formed with a U-shaped groove 31 forming a pair of latch arms 33 facing each other. A pair of limit protrusions 35 are provided at both sides of the U-shaped groove 31 to face each other. The pair of clip arms 33 of the clip block 3 are respectively clipped into the pair of slots 13 and the annular groove 23, and limit the feeding pipe 2 between the bottom 32 of the U-shaped groove 31 and the pair of limiting protrusions 35, so that the feeding pipe 2 can be stably and reliably kept in the feeding port 11, and the feeding pipe 2 can freely rotate 360 degrees relative to the gun body 1 of the spray gun, thereby solving the problem of inconvenient use caused by the distortion of the feeding pipe during multi-angle spraying operation.

In this embodiment, the top surface 3a and the bottom surface 3b of fixture block 3 are the plane, and the top surface 3a of fixture block 3 plays the supporting role to feeder tube 2, and is more steady when planar structure makes feeder tube 2 rotate. Further, the rear end of the fixture block 3 is in a convex arc shape.

The outer peripheral surface of the outlet end of the feed pipe 2 is provided with a first annular step 25 with the step facing upward, and the first annular step 25 is positioned above the annular groove 23. The inner wall of the feed port 11 is provided with a second annular step 15 with a downward facing step, and the first annular step 25 abuts against the second annular step 15. When inserting the exit end of feed tube into the feed inlet of rifle body, when first annular step 25 leaned on second annular step 15, meant that annular groove 23 has also alignd a pair of slot 13, only need to block a pair of card arm 33 of fixture block 3 into a pair of slot 13 and annular groove 23 this moment and accomplished the installation, very convenient.

Further, the periphery of the outlet end of the feed pipe 2 is sleeved with a sealing ring 27, and the sealing ring 27 is located between the first annular step 25 and the outlet of the feed pipe 2. In this embodiment, the number of the seal rings 27 is two.

In this embodiment, the feed pipe 2 comprises an outlet end fitting 2a, a first clamping cap 2b, a pipe body 2c, a second clamping cap 2d and an inlet end fitting 2 e. The annular groove 23, the first annular step 25 and the sealing ring 27 are disposed at the top end of the outlet end fitting 2a, and the bottom end of the outlet end fitting 2a is inserted into the pipe body 2 c. The first clamping cap 2b is sleeved outside the pipe body 2c, and the top end of the first clamping cap 2b is riveted with the outlet end joint 2 a. Outside the body 2c was located to the second clamp cap 2d cover, the bottom riveting of second clamp cap 2d was access point end joint 2 e. The inlet end fitting 2e is for connection to an applicator.

Optionally, 2 overcoat of feed pipe still is equipped with spring 4, and spring 4 is close to the entry end of feed pipe 4, plays the effect that prevents the feed pipe and bend.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A feed pipe mounting structure of a spray gun comprises a gun body and a feed pipe; the feeding gun is characterized in that a pair of slots opposite to each other is formed in the inner wall of the feeding hole, an annular groove extending along the circumferential direction is formed in the outer wall of the outlet end of the feeding pipe, the outlet end of the feeding pipe is inserted into the feeding hole, and the annular groove is aligned to the pair of slots;

the feed pipe mounting structure of the spray gun further comprises a clamping block, the front end of the clamping block is provided with a U-shaped groove to form a pair of clamping arms opposite to each other, and two sides of the U-shaped groove are provided with a pair of limiting bulges opposite to each other; and the pair of clamping arms of the clamping block are clamped into the pair of slots and the annular groove respectively, and limit the feeding pipe between the bottom of the U-shaped groove and the pair of limiting bulges.

2. The feed tube mounting structure for spray guns as claimed in claim 1, wherein the top and bottom surfaces of the cartridge are planar.

3. The feed tube mounting structure for the spray gun of claim 1 wherein said rear end of said cartridge is convexly curved.

4. A feed tube mounting structure for a spray gun as set forth in claim 1, wherein the outer peripheral surface of the outlet end of the feed tube is provided with a first annular step facing upward, the first annular step being located above the annular groove;

the inner wall of the feed inlet is provided with a second annular step with a downward step surface, and the first annular step is abutted against the second annular step.

5. A feed tube mounting arrangement for a spray gun according to claim 4 in which a sealing ring is fitted around the outer periphery of the outlet end of the feed tube, the sealing ring being located between the first annular step and the outlet of the feed tube.

6. A feed tube mounting arrangement for a spray gun as claimed in claim 1, in which said feed tube is sleeved with a spring adjacent the inlet end of said feed tube.

7. The feed tube mounting arrangement for a spray gun of claim 1 wherein said spray gun is a high pressure airless spray gun.

8. The feed pipe mounting structure for the lances as claimed in claim 1 or claim 7, wherein the lance body is provided with a central bore extending in the axial direction of the lance body, and the feed port extends vertically through the central bore.

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