Paint nozzle device

Abstract

The utility model relates to a paint sprayer device, which belongs to the field of sprayer devices, and comprises an upper shell component and a lower shell component, the upper shell component comprises an upper shell, a paint inlet, a paint inlet pipe, a buffer block and a paint leakage hole; the lower shell assembly comprises a lower shell capable of rotating relative to the upper shell, and the rotating axis of the lower shell is arranged in the vertical direction; a paint outlet cavity is formed in the lower shell; the paint outlet cavity is divided into a first paint outlet cavity and a second paint outlet cavity by the distance ring; a paint receiving groove; a partition plate is fixed in the paint receiving groove and divides the paint receiving groove into a first paint receiving groove and a second paint receiving groove; the first paint receiving groove is communicated with the first paint outlet cavity, and the second paint receiving groove is communicated with the second paint outlet cavity; a plurality of first paint outlet holes are formed in the surface of the first paint outlet cavity, and a plurality of second paint outlet holes are formed in the surface of the second paint outlet cavity; according to a top view, the first paint outlet hole is far away from the rotating axis of the lower shell, the second paint outlet hole is close to the rotating axis of the lower shell, and a limiting assembly is further included. The paint sprayer device can change the range of sprayed paint.

Description

Technical Field

[0001] The utility model belongs to the field of nozzle devices, and particularly relates to a paint nozzle device. Background Art

[0002] At present, paint spraying technology is widely used in various industries, such as automobile manufacturing, home decoration, and industrial painting.

[0003] The existing spray gun nozzle uses a nozzle with a single paint spraying range. If the paint spraying range of the nozzle needs to be changed, the operator needs to first remove the installed nozzle with the paint spraying range from the spray gun, then replace the nozzle with a different paint spraying range, and finally install the nozzle with the different paint spraying range on the spray gun.

[0004] The above operation steps are not only cumbersome, but also the paint spraying steps will be discontinuous during the process of replacing the nozzle, ultimately resulting in poor spraying quality. Summary of the Utility Model

[0005] The paint nozzle device of the utility model is to be able to quickly change the paint spraying range of the nozzle.

[0006] The paint nozzle device of the utility model includes an upper shell assembly and a lower shell assembly. The upper shell assembly includes:

[0007] An upper shell body;

[0008] A paint inlet, opened on the surface wall of the upper shell body; the paint inlet is connected and communicated with the paint outlet of the spray gun through a hose;

[0009] A paint inlet pipe, fixed on the upper shell body, one end of the paint inlet pipe is communicated with the paint inlet; a buffer block, fixed on the upper shell body, with a buffer cavity inside, the other end of the paint inlet pipe is communicated with the buffer cavity;

[0010] A paint leakage hole, opened on the buffer block;

[0011] The lower shell assembly includes:

[0012] A lower shell body, the lower end of the upper shell body is sleeved on the upper end of the lower shell body, and can rotate relative to the upper shell body. The rotation axis of the lower shell body is set vertically; there is a paint outlet cavity inside the lower shell body; a partition ring is fixedly connected in the paint outlet cavity, and the partition ring divides the paint outlet cavity into two parts, which are respectively recorded as a first paint outlet cavity and a second paint outlet cavity;

[0013] A paint receiving groove, opened on the upper surface of the lower shell body; a partition board is fixed in the paint receiving groove, and the partition board divides the paint receiving groove into two parts, which are respectively a first paint receiving groove and a second paint receiving groove; the first paint receiving groove is communicated with the first paint outlet cavity, and the second paint receiving groove is communicated with the second paint outlet cavity; by rotating the lower shell body, one of the first paint receiving groove and the second paint receiving groove can be communicated with the paint leakage hole;

[0014] A plurality of first paint outlet holes are formed on the surface of the first paint outlet cavity, and a plurality of second paint outlet holes are formed on the surface of the second paint outlet cavity; when viewed from a top view, the first paint outlet holes are farther from the rotation axis of the lower housing, and the second paint outlet holes are closer to the rotation axis of the lower housing. A limiting component is further included for limiting the rotation of the lower housing after rotation.

[0015] By rotating the lower housing, the first paint receiving groove or the second paint receiving groove can be communicated with the paint leakage hole, so that the paint passes through the first paint receiving groove and is sprayed out from the first paint outlet hole, or the paint passes through the second paint receiving groove and is sprayed out from the second paint spraying hole. Because the distances between the first paint outlet hole and the second paint outlet hole from the rotation axis of the lower housing are different, the coverage ranges of the paint sprayed out from the first paint outlet hole and the second paint outlet hole are also different, achieving the purpose of adjustable coverage range.

[0016] Further, a rotating shaft is fixedly connected to the upper housing, the axis of the rotating shaft is arranged vertically, the rotating shaft passes through the surface of the lower housing, a through hole for the rotating shaft to pass through is formed on the surface of the lower housing, a bearing is installed in the through hole, the outer ring of the bearing is fixedly connected to the inner wall of the through hole, and the inner ring of the bearing is fixedly connected to the outer wall of the rotating shaft. The lower housing can rotate around the axis of the rotating shaft by relying on the bearing.

[0017] Relying on the bearing, the lower housing can rotate more smoothly relative to the upper housing, making the device more fluent when switching the painting range.

[0018] Further, a sealing ring is sleeved in the through hole, the outer wall of the sealing ring abuts against the inner wall of the through hole, and the inner wall of the sealing ring abuts against the outer wall of the rotating shaft.

[0019] It can seal the through hole to prevent paint leakage at the through hole and avoid the situation that the inside of the upper housing is polluted by paint.

[0020] Further, the limiting component includes:

[0021] A limiting bolt is threadedly connected to the circumferential outer wall of the upper housing, and the axis of the limiting bolt is arranged along the radial direction of the rotating shaft; the end of the limiting bolt extends into the upper housing;

[0022] Two limiting holes are formed on the side wall of the lower housing, and the lower housing can rotate to insert the limiting bolt into one of the limiting holes; let the two limiting holes be limiting hole A and limiting hole B respectively. When the limiting bolt extends into limiting hole A, the first paint receiving groove is exactly communicated with the paint leakage hole, and the second paint receiving groove is not communicated with the paint leakage hole 5; when the limiting bolt extends into limiting hole B, the second paint receiving groove is exactly communicated with the paint leakage hole, and the first paint receiving groove is not communicated with the paint leakage hole.

[0023] Further, the first paint outlet holes are arranged in a circumferential array around the axis of the rotating shaft, and the second paint outlet holes are arranged in a circumferential array around the axis of the rotating shaft.

[0024] Make the paint distribution more uniform after spraying. If it is not set in a circumferential array, it may cause the paint in the module area to be thicker after spraying and thinner in other positions, resulting in poor uniformity.

[0025] Further, a baffle is fixed to the lower end of the lower housing. The baffle is annular, and the axis of the baffle coincides with the axis of the rotating shaft. In a top view, the covering range of the baffle covers the first paint outlet hole and the second paint outlet hole.

[0026] It can prevent the paint from spraying out of the baffle and avoid the situation of paint contaminating other areas. Beneficial effects

[0027] This solution can realize the spraying of paint from the first paint outlet hole or the second paint outlet hole through the rotation of the lower housing. The reason for changing the position of the above-mentioned paint outlet is that the distances between the first paint outlet hole and the second paint outlet hole from the axis of the rotating shaft are different, and the covering areas of the paint sprayed from the two positions will be different due to the different distances. Description of the drawings

[0028] Figure 1 is a cross-sectional view of the whole device;

[0029] Figure 2 is a schematic structural diagram of the upper housing;

[0030] Figure 3 is a schematic structural diagram of the lower housing.

[0031] 1. Upper housing; 2. Paint inlet; 3. Paint inlet pipe; 4. Buffer block; 5. Paint leakage hole; 6. Rotating shaft; 7. Threaded column; 8. Lower housing; 9. Bearing; 10. First paint receiving groove; 11. Spacer ring; 12. First paint outlet channel; 13. First paint outlet hole; 14. Second paint outlet hole; 15. Baffle; 16. Limit bolt; 17. Limit hole; 18. Second paint receiving groove; 19. Partition board; 20. Second paint outlet channel. Specific implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] See Figure 1 , a paint spraying head device, including an upper housing assembly and a lower housing assembly; the upper housing assembly includes:

[0034] An upper housing 1, which is formed by cutting a hollow cylinder, so as to Figure 1From a perspective, assume that the axis of the upper housing is set vertically, and the upper housing 1 has no lower surface;

[0035] The paint inlet 2 is opened on the circumferential side wall of the upper housing 1.

[0036] The paint inlet pipe 3 is fixed to the upper housing 1 through a bracket. The paint inlet pipe 3 is located in the upper housing 1. One end of the paint inlet pipe 3 is fixedly connected to the circumferential side wall of the upper housing 1, and this end of the paint inlet pipe 3 is communicated with the paint inlet 2.

[0037] The buffer block 4 is fixed in the upper housing 1. A buffer cavity is opened in the buffer block 4. The buffer cavity is connected and communicated with the other end of the paint inlet pipe 3; a paint leakage hole 5 is opened on the lower surface of the buffer block 4, and the paint in the buffer cavity can be discharged from the paint leakage hole 5.

[0038] The rotating shaft 6 is fixed to the lower end of the upper housing 1, and the axis of the rotating shaft 6 coincides with the axis of the upper housing 1.

[0039] The threaded column 7 is fixed to the upper end of the upper housing 1. The axis of the threaded column 7 coincides with the axis of the upper housing 1. The threaded column 7 is used to connect the upper housing 1 and the paint spray gun into a whole by means of threads. The paint outlet of the paint spray gun is connected and communicated with the paint inlet 2 through a hose.

[0040] The lower housing assembly includes:

[0041] The lower housing 8. In this embodiment, the shape of the lower housing 8 is approximately a hollow cylinder; the lower end of the upper housing 1 is sleeved on the lower housing 8, the axis of the upper housing 1 coincides with the axis of the lower housing 8, the upper surface of the lower housing 8 is located in the upper housing 1, and the lower surface of the lower housing 8 is located outside the upper housing 1. An paint outlet cavity is opened in the lower housing 8. The lower end of the rotating shaft 6 passes through the upper surface of the lower housing 8 and extends into the paint outlet cavity. A perforation for the rotating shaft 6 to pass through is opened on the upper surface of the lower housing 8. A bearing 9 is installed at the perforation. The outer ring of the bearing 9 is fixedly connected to the inner wall of the perforation, the inner ring of the bearing 9 is fixedly connected to the outer wall of the rotating shaft 6, and the axis of the bearing 9 coincides with the axis of the rotating shaft 6. A sealing ring (not shown) is also provided in the perforation. The sealing ring is located above the bearing 9. The inner ring of the sealing ring is sleeved on the rotating shaft 6 and keeps sealed. The outer ring of the sealing ring contacts the outer ring of the perforation and keeps sealed. The sealing performance of the perforation position is ensured through the sealing ring.

[0042] The lower housing 8 can rotate relative to the upper housing 1 around its own axis by relying on the bearing 9. After the upper housing 1 and the lower housing 2 are assembled, the lower surface of the buffer block 4 in the upper housing 1 abuts against the upper surface of the lower housing 8 to ensure the sealing performance between the buffer block 4 and the lower housing 8.

[0043] See Figure 2, The paint receiving groove is opened on the upper surface of the upper housing 1. A partition plate 19 is fixed in the paint receiving groove. The partition plate 19 divides the paint receiving groove into two parts, denoted as the first paint receiving groove 10 and the second paint receiving groove 18 respectively. In the working state of the device, one of the first paint receiving groove 10 and the second paint receiving groove 18 can communicate with the paint leakage hole 5. By rotating the lower housing 8, the other one of the first paint receiving groove 10 and the second paint receiving groove 18 can be made to communicate with the paint leakage hole 5.

[0044] The spacer ring 11 is fixed in the paint outlet cavity. The spacer ring 11 divides the paint outlet cavity into two parts, denoted as the first paint outlet cavity and the second paint outlet cavity respectively. The upper surface of the lower housing 8 is provided with a first paint outlet channel 12. The first paint receiving groove 10 communicates with the first paint outlet cavity through the first paint outlet channel 12. The upper surface of the lower housing 8 is also provided with a second paint outlet channel 20 (see Figure 3 ), and the second paint receiving groove 18 communicates with the second paint outlet cavity through the second paint outlet channel 20.

[0045] A plurality of first paint outlet holes 13 and a plurality of second paint outlet holes 14. The first paint outlet holes 13 are opened on the lower surface of the first paint outlet cavity, and each of the first paint outlet holes 13 is arranged in a circumferential array around the axis of the lower housing 8. The second paint outlet holes 14 are opened on the lower surface of the second paint outlet cavity, and each of the second paint outlet holes 14 is arranged in a circumferential array around the axis of the lower housing 8. In a top view, since the second paint outlet holes 14 are closer to the axis of the lower housing 8, the coverage area of the paint sprayed from the second paint outlet holes 14 is smaller, and the paint is thicker in the spraying range. On the contrary, since the first paint outlet holes 13 are farther from the axis of the lower housing 8, the coverage area of the paint sprayed from the first paint outlet holes 13 is larger, and the paint is thinner in the spraying range.

[0046] The baffle 15 is in a circular ring shape and is fixed at the lower end of the lower housing 8. The axis of the baffle 15 coincides with the axis of the lower housing 8. In a top view, the coverage area of the baffle 15 covers the first paint outlet holes 13 and the second paint outlet holes 14 to ensure that the paint does not fall outside the baffle 15.

[0047] See Figure 1 , and further includes a limiting component for limiting the lower housing 8 after rotation. The limiting component includes:

[0048] The limiting bolt 16 is threadedly connected to the circumferential outer wall of the upper housing 1. The axis of the limiting bolt 16 is arranged along the radial direction of the upper housing 1, and the end of the limiting bolt 16 extends into the upper housing 1.

[0049] Two limiting holes 17 are opened on the circumferential outer wall of the lower housing 8, and the end of the limiting bolt 16 extends into one of the limiting holes 17. Let the two limiting holes 17 be limiting hole A and limiting hole B respectively. When the limiting bolt 16 extends into limiting hole A, the first paint receiving groove 10 is exactly communicated with the paint leakage hole 5, and the second paint receiving groove 18 is not communicated with the paint leakage hole 5; when the limiting bolt 16 extends into limiting hole B, the second paint receiving groove 18 is exactly communicated with the paint leakage hole 5, and the first paint receiving groove 10 is not communicated with the paint leakage hole 5.

[0050] The using process of this device is as follows:

[0051] After assembling this device, turn on the paint gun, and the paint at the paint outlet of the paint gun sequentially passes through the paint inlet 2 and the paint inlet pipe 3 and enters the buffer cavity; since one of the first paint receiving groove 10 or the second paint receiving groove 18 is communicated with the paint leakage hole 5, the paint enters the first paint receiving groove 10 or the second paint receiving groove 18 due to pressure.

[0052] If the first paint receiving groove 10 is communicated with the paint leakage hole 5, the paint sequentially passes through the paint leakage hole 5, the first paint receiving groove 10, and the first paint outlet channel 12 and enters the first paint outlet cavity, and finally is discharged from the first paint outlet hole 13 on the first paint outlet cavity to realize painting.

[0053] If the second paint receiving groove 18 is communicated with the paint leakage hole 5, the paint sequentially passes through the paint leakage hole 5, the second paint receiving groove 18, and the second paint outlet channel 20 and enters the second paint outlet cavity, and finally is discharged from the second paint outlet hole 14 on the second paint outlet cavity to realize painting.

[0054] The paint sprayed from the first paint outlet hole 13 and the second paint outlet hole 14 covers different ranges because the distances from the axis of the lower housing 8 are different. By simply adjusting the limiting component without replacing the nozzle, the purpose of quickly adjusting the painting range is achieved. The operator only needs to insert the limiting bolt 16 into different limiting holes 17 to make the first paint receiving groove 10 or the second paint receiving groove 18 communicate with the paint leakage hole 5.

[0055] Enlightened by the ideal embodiments of the present invention described above, through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A paint spray head device, characterized in that: It includes an upper shell component and a lower shell component, and the upper shell component includes: Upper housing (1); The paint inlet (2) is provided on the surface wall of the upper shell (1); the paint inlet (2) is connected and communicated with the paint outlet of the spray gun via a hose; A paint inlet pipe (3) is fixed on the upper shell (1), and one end of the paint inlet pipe (3) is connected to the paint inlet port (2); A buffer block (4) is fixed on the upper shell (1), and is provided with a buffer cavity inside, and the other end of the paint inlet pipe (3) is connected to the buffer cavity; A paint leakage hole (5) is provided on the buffer block (4); The lower shell assembly includes: The lower shell (8) is sleeved with the lower end of the upper shell (1) on the upper end of the lower shell (8) and can rotate relative to the upper shell (1), and the rotation axis of the lower shell (8) is arranged vertically; a paint outlet cavity is arranged inside the lower shell (8); a spacer ring (11) is fixedly connected to the paint outlet cavity, and the spacer ring (11) divides the paint outlet cavity into two parts, which are respectively recorded as a first paint outlet cavity and a second paint outlet cavity; A paint receiving groove is provided on the upper surface of the lower shell (8); a partition (19) is fixed in the paint receiving groove, and the partition (19) divides the paint receiving groove into two parts, namely a first paint receiving groove (10) and a second paint receiving groove (18); the first paint receiving groove (10) is connected to the first paint outlet cavity, and the second paint receiving groove (18) is connected to the second paint outlet cavity; the lower shell (8) can be rotated to make one of the first paint receiving groove (10) and the second paint receiving groove (18) connected to the paint leakage hole (5); A plurality of first paint outlet holes (13) are provided on the surface of the first paint outlet cavity, and a plurality of second paint outlet holes (14) are provided on the surface of the second paint outlet cavity; in a top view, the first paint outlet holes (13) are farther from the rotation axis of the lower shell (8), and the second paint outlet holes (14) are closer to the rotation axis of the lower shell (8), and also include a limit assembly for limiting the rotation of the lower shell (8).

2. The paint spray head device according to claim 1, characterized in that: The upper shell (1) is fixedly connected with a rotating shaft (6), the axis of the rotating shaft (6) is arranged in the vertical direction, the rotating shaft (6) passes through the surface of the lower shell (8), the surface of the lower shell (8) is provided with a through hole for the rotating shaft (6) to pass through, a bearing (9) is installed in the through hole, the outer ring of the bearing (9) is fixedly connected with the inner wall of the through hole, the inner ring of the bearing (9) is fixedly connected with the outer wall of the rotating shaft (6), and the lower shell (8) can rotate around the axis of the rotating shaft (6) by means of the bearing (9).

3. The paint spray head device according to claim 2, characterized in that: A sealing ring is sleeved in the through hole, the outer wall of the sealing ring abuts against the inner wall of the through hole, and the inner wall of the sealing ring abuts against the outer wall of the rotating shaft (6).

4. The paint spray head device according to claim 2, characterized in that: The limiting component comprises: A limiting bolt (16) is threadedly connected to the circumferential outer wall of the upper shell (1), and the axis of the limiting bolt (16) is arranged along the radial direction of the rotating shaft (6); the end of the limiting bolt (16) extends into the upper shell (1); Two limiting holes (17) are provided on the side wall of the lower shell (8), and the lower shell (8) can be rotated to allow the limiting bolt (16) to be inserted into one of the limiting holes (17); the two limiting holes (17) are respectively defined as limiting hole A and limiting hole B, and when the limiting bolt (16) is inserted into limiting hole A, the first paint receiving groove (10) is exactly connected to the paint leakage hole (5), and the second paint receiving groove (18) is not connected to the paint leakage hole (5); when the limiting bolt (16) is inserted into limiting hole B, the second paint receiving groove (18) is exactly connected to the paint leakage hole (5), and the first paint receiving groove (10) is not connected to the paint leakage hole (5).

5. The paint spray head device according to claim 2, characterized in that: The first paint outlet holes (13) are arranged in a circular array around the axis of the rotating shaft (6), and the second paint outlet holes (14) are arranged in a circular array around the axis of the rotating shaft (6).

6. The paint spray head device according to claim 5, characterized in that: A baffle (15) is fixed at the lower end of the lower shell (8), and the baffle (15) is in a circular ring shape. The axis of the baffle (15) coincides with the axis of the rotating shaft (6). In a top view, the covering range of the baffle (15) covers the first paint outlet hole (13) and the second paint outlet hole (14).

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