Paint spray gun

Abstract

The utility model discloses a paint spray gun which comprises a spray gun body, a spray head is arranged at one end of the spray gun body, a connecting mechanism used for connecting the whole spray gun is arranged on the outer wall of the spray gun body in a sleeved mode, and the connecting mechanism comprises a first half ring, a second half ring and a third half ring, a second semi-ring is hinged to one end of the first semi-ring, and connecting pieces are arranged at the ends, away from each other, of the first semi-ring and the second semi-ring; and the locking part is arranged on the outer wall of the connecting piece in a sliding and sleeving manner. The connecting mechanism is arranged, the connecting piece is arranged at the closed position of the first semi-ring and the second semi-ring firstly, then the locking part is used for locking the connecting piece, in the arrangement of the scheme, a screw locking mode is omitted, and sleeving locking is completed in a reset clamping sleeve mode; therefore, connection looseness caused by thread looseness is avoided, and fastening of connection is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of spray guns, in particular to a paint spray gun. Background Art

[0002] The rotary cup electrostatic spray gun is a type of spraying equipment commonly used in the coating industry. It uses the principle of static electricity to charge the paint when it is sprayed, so that the paint particles are charged and guided to the surface of the workpiece with the opposite charge, thereby achieving uniform and efficient coating. This spray gun is usually equipped with a rotating cup, which can continuously stir the paint during the coating process to maintain its uniformity.

[0003] In this type of spray gun, a connection mechanism is provided on the outer wall of the spray gun body. The existing connection mechanism adopts a connection form similar to a clamp, that is, the outer wall of the spray gun body is enclosed by two semi-rings, and then the semi-rings are enclosed and fixed with screws. When the position of such a connection mechanism and the spray gun body needs to be adjusted, the screw needs to be repeatedly screwed. Such continuous operation will loosen the screw thread, and the spray gun body cannot be stably connected by the connection mechanism during use. Utility Model Content

[0004] The purpose of the utility model is to provide a paint spray gun to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a paint spray gun, comprising a spray gun body, one end of which is provided with a spray head, and the outer wall of the spray gun body is provided with a connecting mechanism for connecting the entire spray gun, and the connecting mechanism comprises:

[0006] A first half ring, wherein the first half ring is sleeved on the outer wall of the spray gun body, one end of the first half ring is hingedly connected to the second half ring, and a connecting piece is provided at one end of the first half ring and the second half ring which are away from each other;

[0007] The locking part is slidably sleeved on the outer wall of the connecting piece.

[0008] Preferably, a paint spraying cup is arranged in the middle of the spray head.

[0009] Preferably, a rotating rod for rotating the first half ring and the second half ring is provided at the hinged joint thereof, and a mounting ring is provided on the outer ring wall of the first half ring.

[0010] Preferably, the inner ring walls of the first half ring and the second half ring are both surrounded by a plurality of extrusion protrusions.

[0011] Preferably, the connecting member comprises:

[0012] A first connecting block, the first connecting block is fixedly connected to the outer ring wall of the first half ring;

[0013] The second connecting block is fixedly connected to the outer ring wall of the second half ring, and the locking portion is slidably sleeved on the outer walls of the first connecting block and the second connecting block.

[0014] Preferably, the locking portion comprises:

[0015] A locking sleeve, wherein the top of the locking sleeve is slidably sleeved on the outer wall of the first connecting block, the bottom of the locking sleeve is slidably sleeved on the outer wall of the second connecting block, and a reset sliding groove is provided on the top of the first connecting block;

[0016] The guide slide bar has two ends respectively inserted and connected to the inner walls on both sides of the reset slide groove, and the outer wall of the guide slide bar is sleeved with a reset spring.

[0017] Preferably, a first sliding block is fixedly connected to the inner wall of the top of the locking sliding sleeve, the first sliding block is slidably inserted and connected in the reset sliding groove, and the first sliding block is slidably sleeved on the outer wall of the guide sliding rod.

[0018] Preferably, a docking groove is formed at the bottom end of the second connecting block, and a second sliding block is disposed on the inner wall of the bottom end of the locking sleeve, and the second sliding block is slidably inserted and connected in the docking groove.

[0019] Technical effects and advantages of the utility model:

[0020] The utility model sets up a connecting mechanism, firstly sets a connecting piece at the closed position of the first half ring and the second half ring, and then uses a locking part to lock the connecting piece. In the setting of this scheme, the form of screw locking is cancelled, and the sleeve locking is completed by using a reset sleeve, so as to avoid loose connection caused by loose thread and ensure the tightness of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the connection mechanism of the utility model.

[0023] Figure 3 It is a structural cross-sectional view of the connection between the connecting piece and the locking part of the utility model.

[0024] In the figure: 1, spray gun body; 2, spray head; 3, paint rotary cup; 4, first half ring; 5, second half ring; 6, rotating rod; 7, mounting ring; 8, first connecting block; 801, reset slide; 9, second connecting block; 901, docking slide; 10, locking sleeve; 1001, first sliding block; 1002, second sliding block; 11, extrusion protrusion; 12, guide slide; 13, reset spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-3 The paint spray gun shown comprises a spray gun body 1 , a spray head 2 is arranged at one end of the spray gun body 1 , and a paint spraying cup 3 is arranged in the middle of the spray head 2 .

[0027] It should be noted that the main body designed in this scheme is a rotary cup electrostatic spray gun. When using this type of spray gun for painting, when the paint is sprayed, due to the effect of static electricity, the paint particles will be subjected to a mutually repelling force, causing them to be evenly distributed toward the surface of the workpiece. This uniform distribution helps to reduce paint waste, improve coating efficiency, and ensure the quality and consistency of the coating. Compared with traditional spraying methods, the rotary cup electrostatic spray gun can complete the coating task in a shorter time and can achieve better coating effects on the surface of workpieces with complex shapes. In addition, it can also reduce environmental pollution because there is almost no spilled paint during the spraying process. These advantages make the rotary cup electrostatic spray gun one of the indispensable equipment in the modern coating industry.

[0028] The outer wall of the spray gun body 1 is provided with a connecting mechanism for connecting the entire spray gun, and the connecting mechanism includes:

[0029] A first half ring 4, the first half ring 4 is sleeved on the outer wall of the spray gun body 1, one end of the first half ring 4 is hinged with the second half ring 5, and a connecting piece is provided at one end of the first half ring 4 and the second half ring 5 that are away from each other;

[0030] Specifically, a rotating rod 6 for rotating the first half ring 4 and the second half ring 5 is provided at the hinge of the first half ring 4 and the second half ring 5. The first half ring 4 and the second half ring 5 are hinged by the rotating rod 6, and the rotating rod 6 is used as the rotation center to realize the rotation connection between the two. The outer ring wall of the first half ring 4 is provided with a mounting ring 7, and the inner ring walls of the first half ring 4 and the second half ring 5 are surrounded by a plurality of extrusion protrusions 11. Through the setting of the extrusion protrusions 11, after the first half ring 4 and the second half ring 5 are enclosed, the enclosed space of the first half ring 4 and the second half ring 5 is reduced through the setting of the extrusion protrusions 11. In this way, the extrusion elasticity is utilized so that the first half ring 4 and the second half ring 5 can be more tightly mounted on the outer wall of the spray gun body 1.

[0031] The locking part is slidably sleeved on the outer wall of the connecting piece.

[0032] Furthermore, the connecting piece includes:

[0033] A first connecting block 8, the first connecting block 8 is fixedly connected to the outer ring wall of the first half ring 4;

[0034] The second connecting block 9 is fixedly connected to the outer ring wall of the second half ring 5 , and the locking portion is slidably sleeved on the outer walls of the first connecting block 8 and the second connecting block 9 .

[0035] Further, the locking portion includes:

[0036] A locking sleeve 10, wherein the top of the locking sleeve 10 is slidably sleeved on the outer wall of the first connecting block 8, and the bottom of the locking sleeve 10 is slidably sleeved on the outer wall of the second connecting block 9, and a reset slide groove 801 is provided on the top of the first connecting block 8;

[0037] It should be noted that if Figure 2 As shown, the top of the locking sleeve 10 is fully wrapped around the outer wall of the first connecting block 8, and the bottom of the locking sleeve 10 is half wrapped around the outer wall of the second connecting block 9, wherein the two sides and the bottom end of the second connecting block 9 are exposed.

[0038] The guide slide rod 12 has two ends which are respectively inserted and connected to the inner walls of the two sides of the reset slide groove 801 , and the outer wall of the guide slide rod 12 is sleeved with a reset spring 13 .

[0039] Furthermore, a first sliding block 1001 is fixedly connected to the inner wall at the top of the locking sleeve 10 , the first sliding block 1001 is slidably inserted and connected in the reset slot 801 , and the first sliding block 1001 is slidably sleeved on the outer wall of the guide slide rod 12 .

[0040] Furthermore, a docking groove 901 is provided at the bottom end of the second connecting block 9 , and a second sliding block 1002 is provided on the inner wall of the bottom end of the locking sleeve 10 . The second sliding block 1002 is slidably inserted and connected in the docking groove 901 .

[0041] It should be noted that when the first half ring 4 and the second half ring 5 are closed and locked, the locking sleeve 10 is first pulled in the direction away from the first connecting block 8. At this time, the locking sleeve 10 drives the first sliding block 1001 to move synchronously and squeezes the reset spring 13 to shrink it. After pulling the locking sleeve 10 to the maximum range, the first half ring 4 and the second half ring 5 are closed, and it is ensured that the first connecting block 8 and the second connecting block 9 are in a parallel state. At this time, the pulling on the locking sleeve 10 is released. Under the push of the restoring force of the reset spring 13, the locking sleeve 10 moves in the direction close to the first connecting block 8 and drives the second sliding block 1002 to slide in the docking groove 901. At this time, the locking sleeve 10 covers the first connecting block 8 and the second connecting block 9, so that the first connecting block 8 and the second connecting block 9 can be locked, thereby ensuring the closed locking of the first half ring 4 and the second half ring 5.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paint spray gun, comprising a spray gun body (1), wherein one end of the spray gun body (1) is provided with a spray head (2), characterized in that: The outer wall of the spray gun body (1) is provided with a connecting mechanism for connecting the entire spray gun, and the connecting mechanism comprises: A first half ring (4), the first half ring (4) being sleeved on the outer wall of the spray gun body (1), one end of the first half ring (4) being hingedly connected to the second half ring (5), and a connecting piece being arranged at the ends of the first half ring (4) and the second half ring (5) which are away from each other; The locking part is slidably sleeved on the outer wall of the connecting piece.

2. A paint spray gun according to claim 1, characterized in that: A paint spraying cup (3) is arranged in the middle of the spray head (2).

3. A paint spray gun according to claim 1, characterized in that: A rotating rod (6) for rotating the first half ring (4) and the second half ring (5) is provided at the hinged joint thereof, and a mounting ring (7) is provided on the outer ring wall of the first half ring (4).

4. A paint spray gun according to claim 3, characterized in that: The inner ring walls of the first half ring (4) and the second half ring (5) are both surrounded by a plurality of extrusion protrusions (11).

5. A paint spray gun according to claim 1, characterized in that: The connecting piece comprises: A first connecting block (8), the first connecting block (8) being fixedly connected to the outer ring wall of the first half ring (4); The second connecting block (9) is fixedly connected to the outer ring wall of the second half ring (5), and the locking portion is slidably sleeved on the outer walls of the first connecting block (8) and the second connecting block (9).

6. A paint spray gun according to claim 5, characterized in that: The locking portion comprises: A locking sleeve (10), wherein the top of the locking sleeve (10) is slidably sleeved on the outer wall of the first connecting block (8), and the bottom of the locking sleeve (10) is slidably sleeved on the outer wall of the second connecting block (9), and a reset groove (801) is provided at the top of the first connecting block (8); The guide slide bar (12) has two ends respectively inserted into and connected to the inner walls of the two sides of the reset slide groove (801), and the outer wall of the guide slide bar (12) is sleeved with a reset spring (13).

7. A paint spray gun according to claim 6, characterized in that: A first sliding block (1001) is fixedly connected to the inner wall at the top of the locking sliding sleeve (10), the first sliding block (1001) is slidably inserted into the reset sliding groove (801), and the first sliding block (1001) is slidably sleeved on the outer wall of the guide sliding rod (12).

8. A paint spray gun according to claim 6, characterized in that: A docking groove (901) is provided at the bottom end of the second connecting block (9), and a second sliding block (1002) is provided on the inner wall of the bottom end of the locking sleeve (10), and the second sliding block (1002) is slidably inserted and connected in the docking groove (901).

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