Air supply pipeline of pneumatic spraying equipment

Abstract

The utility model discloses an air supply pipeline of pneumatic spraying equipment, and relates to the technical field of pneumatic spraying equipment, in particular to the air supply pipeline of the pneumatic spraying equipment, which comprises an air supply pipeline, a plugging sleeve is movably sleeved on the side wall of the air supply pipeline, and a lower support ring is fixedly supported at the bottom of the inner concave surface of the plugging sleeve. An upper supporting ring is fixedly supported on the top of the inner concave face of the plugging sleeve, a filter element is fixedly arranged between the lower supporting ring and the upper supporting ring in a sleeving mode, and a supporting ring is fixedly arranged outside the air supply pipeline in a sleeving mode. According to the air supply pipeline of the pneumatic spraying equipment, through the arrangement of the air supply pipeline, the lower supporting ring and the upper supporting ring are movably arranged in the air supply pipeline in a sleeved mode, filter elements are supported in the lower supporting ring and the upper supporting ring, and the upper filter element and the lower filter element are arranged in an inner cavity of the air supply pipeline; in the using process, the filter element can be used for continuously blocking and purifying inert gas passing through the gas supply pipeline, and impurity mixed paint mixed in the gas is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic spraying equipment, in particular to an air supply pipeline for pneumatic spraying equipment. Background Art

[0002] Pneumatics uses the air pressure generated by impact or rotation to make it move or do work. Pneumatics uses compressed air as a power source to drive the machine to complete extension or rotation. Because it uses the compressibility of air, the air is inhaled and compressed and stored. The air has elastic force like a spring, and then the direction is controlled by the control element to drive the rotation and extension of the actuator. The same amount of air inhaled from the atmosphere will be discharged into the atmosphere. No chemical reaction will occur, nor will any components that pollute the air be consumed. In addition, the viscosity of gas is smaller than that of liquid, so the flow speed is fast and it is also very environmentally friendly.

[0003] During the use of pneumatic spray equipment, gas and paint are mixed and then sprayed onto the surface of the sprayed part to complete the processing. Some paints need to avoid contact with oxygen during the mixing process to cause oxidation. Inert gas will be used to treat the paint under high pressure. The purity of the gas during the spraying process will affect the quality of the layer. In order to ensure the quality of the coating, we propose a pneumatic spray equipment air supply pipeline to ensure the pressure and purity of the air supply. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air supply pipeline for pneumatic spraying equipment, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an air supply pipeline for pneumatic spraying equipment, comprising an air supply pipeline, a side wall of the air supply pipeline is movably sleeved with a sealing sleeve, the bottom of the inner concave surface of the sealing sleeve is fixedly supported by a lower support ring, the top of the inner concave surface of the sealing sleeve is fixedly supported by an upper support ring, a filter element is fixedly sleeved between the lower support ring and the upper support ring, the outside of the air supply pipeline is fixedly sleeved with a support ring, one side of the support ring is fixedly connected to a support spring, and the other end of the support spring is installed with a limiting ring.

[0006] Optionally, a partition plate is fixedly installed on the top of the air supply pipe, and a plurality of one-way flow limiting structures are fixedly installed above the partition plate.

[0007] Optionally, the sealing sleeve is made of silicone, the inner side of the limiting ring and the outer side of the sealing sleeve are fitted together, and the number of filter elements in the inner cavity of the air supply pipeline is not less than two.

[0008] Optionally, the outer diameters of the lower support ring and the upper support ring are the same as the inner diameter of the air supply pipe, and a ventilation port running through the upper and lower parts is provided inside the upper support ring.

[0009] Optionally, an upper separation sleeve is fixedly mounted on the top surface of the separation plate, a low-pressure alarm is fixedly mounted on the outside of the upper separation sleeve, and the upper separation sleeve is mounted on the outside of all current limiting mechanisms.

[0010] Optionally, the one-way flow limiting structure includes a flow limiting tube, a support plate, a sealing spring, a sealing piece, and a sealing ring. The flow limiting tube is installed above the partition plate, the support plate is supported in the inner cavity of the flow limiting tube, the sealing spring is connected to the bottom of the support plate, the bottom end of the sealing spring is fixedly connected to the top surface of the sealing piece, and the sealing ring is sleeved inside the flow limiting tube.

[0011] The utility model provides an air supply pipeline for pneumatic spraying equipment, which has the following beneficial effects:

[0012] 1. The air supply pipeline of the pneumatic spraying equipment is provided with a lower support ring and an upper support ring in an internal movable sleeve of the air supply pipeline through the setting of the air supply pipeline, so that the lower support ring and the upper support ring are supported internally with a filter element, and two upper and lower filter elements are provided in the inner cavity of the air supply pipeline. During use, the filter element can be used to continuously block and purify the inert gas passing through the air supply pipeline to reduce the mixing of impurities and mixed paint in the gas.

[0013] 2. The air supply pipeline of the pneumatic spraying equipment is equipped with a partition plate above the air supply pipeline, and an upper partition sleeve is installed on the top surface of the partition plate. During use, a partition layer can be formed by the partition plate. The setting of the flow limiting tube above the partition plate can ensure the stability and continuity of the air supply. When the air pressure above the partition plate is insufficient, the low-pressure alarm will sound an alarm in time to inform the construction personnel to stop using it and replace the gas tank at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the gas supply pipeline of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the partition plate of the utility model.

[0018] In the figure: 1. air supply pipe; 2. lower support ring; 3. upper support ring; 4. filter element; 5. sealing sleeve; 6. support ring; 7. support spring; 8. limit ring; 9. upper separator sleeve; 10. low pressure alarm; 11. flow limiting tube; 12. support plate; 13. sealing spring; 14. sealing sheet; 15. sealing ring; 16. separator. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: an air supply pipeline for pneumatic spraying equipment, including an air supply pipeline 1, a side wall movable sleeve of the air supply pipeline 1 is provided with a blocking sleeve 5, the blocking sleeve 5 is made of silicone material, the inner side of the limiting ring 8 and the outer side of the blocking sleeve 5 are fitted, the number of filter elements 4 in the inner cavity of the air supply pipeline 1 is not less than two, the provision of multiple filter elements 4 can ensure the normal use of the remaining filter elements 4 when replacement is needed, convenient for the use of the equipment, and improves the practicality of the equipment. At the same time, the provision of the blocking sleeve 5 can ensure the sealing of the side wall of the air supply pipeline 1, the cooperation of the limiting ring 8 can prevent the blocking sleeve 5 from being squeezed out by air pressure, the bottom of the inner concave surface of the blocking sleeve 5 is fixedly supported by a lower support ring 2, the top of the inner concave surface of the blocking sleeve 5 is fixedly supported by an upper support ring 3, and the outer diameter value of the lower support ring 2 and the upper support ring 3 is The same as the inner diameter value of the air supply pipe 1, the interior of the upper support ring 3 is provided with an air exchange port running through the upper and lower parts. After a period of use, dust will accumulate at the bottom of the filter element 4, affecting the efficiency of the air supply. At this time, the support spring 7 is compressed by pushing the limit ring 8 toward the support ring 6, and the limit ring 8 and the sealing sleeve 5 are separated at the same time, and then the sealing sleeve 5 is taken out from the inside of the air supply pipe 1, and the lower support ring 2 and the upper support ring 3 and the filter element 4 can be taken out simultaneously, and the new filter element 4 can be replaced. Then the limit ring 8 is used to limit the position of the sealing sleeve 5 to complete the replacement. The filter element 4 is fixedly mounted between the lower support ring 2 and the upper support ring 3, and the support ring 6 is fixedly mounted on the outside of the air supply pipe 1. One side of the support ring 6 is fixedly connected to the support spring 7, and the other end of the support spring 7 is installed with a limit ring 8.

[0021] A partition plate 16 is fixedly installed on the top of the gas supply pipeline 1, and a plurality of one-way flow limiting structures are fixedly installed above the partition plate 16. An upper partition sleeve 9 is fixedly installed on the top surface of the partition plate 16, and a low-pressure alarm 10 is fixedly installed on the outside of the upper partition sleeve 9. The upper partition sleeve 9 is installed on the outside of all flow limiting mechanisms. When the inert gas in the tank is insufficient, the gas supply of the gas supply pipeline 1 becomes intermittent. The partition of the partition plate 16 can effectively prevent the intermittent airflow from mixing with the paint and causing the nozzle to become blocked. When the air pressure above the partition plate 16 is insufficient, the low-pressure alarm 10 will sound an alarm to remind the construction personnel to replace the new gas tank in time. The one-way flow limiting structure includes a flow limiting tube 11, a support Plate 12, sealing spring 13, sealing piece 14, sealing ring 15, and flow limiting tube 11 are installed above the partition plate 16, the support plate 12 is supported in the inner cavity of the flow limiting tube 11, the sealing spring 13 is connected to the bottom of the support plate 12, the bottom end of the sealing spring 13 and the top surface of the sealing piece 14 are fixedly connected, and the sealing ring 15 is sleeved inside the flow limiting tube 11. The gas will push the sealing piece 14 to move upward, so that the sealing piece 14 and the sealing ring 15 are separated, and then the inert gas will pass through the flow limiting tube 11 and enter the inner cavity of the upper partition sleeve 9. By using multiple flow limiting tubes 11 arranged above the limiting ring 8, the activity trajectory of the single-way flow limiting inert gas can be carried out to avoid gas backflow.

[0022] In summary, when the air supply pipeline of the pneumatic spraying equipment is used, first insert the lower support ring 2 and the upper support ring 3 and the filter element 4 from the outside of the air supply pipeline 1 into the inside of the air supply pipeline 1, so that the top of the upper separation sleeve 9 is connected to the air supply end of the spray gun, and then open the gas tank valve to allow the inert gas to be sent from the bottom of the air supply pipeline 1 to the inside of the air supply pipeline 1, so that the inert gas passes through the filter element 4 to block dust and impurities during the transportation process, and the purified air is transported upward. The inert gas will push the sealing piece 14 to move upward, so that the sealing piece 14 and the sealing ring 15 are separated, and then the inert gas will pass through the flow limiting tube 11 into the inner cavity of the upper separation sleeve 9. By using multiple flow limiting tubes 11 arranged above the limiting ring 8, the activity trajectory of the single-way flow limiting inert gas can be carried out. When the inert gas in the air supply pipe 1 is insufficient, the air supply of the air supply pipe 1 becomes intermittent. The separation of the partition plate 16 can effectively prevent the intermittent airflow from mixing with the paint and causing the nozzle to become blocked. When the air pressure above the partition plate 16 is insufficient, the low-pressure alarm 10 will sound an alarm to remind the construction personnel to replace the new gas tank in time. At the same time, during the spraying process, after a period of use, dust will accumulate at the bottom of the filter element 4, affecting the efficiency of the air supply. At this time, the limit ring 8 is pushed toward the support ring 6 to make the support spring 7 in a compressed state, and the limit ring 8 and the sealing sleeve 5 are separated at the same time, and then the sealing sleeve 5 is taken out from the inside of the air supply pipe 1, and the lower support ring 2 and the upper support ring 3 and the filter element 4 can be taken out simultaneously, and a new filter element 4 can be replaced. Then, the limit ring 8 is used to limit the position of the sealing sleeve 5.

[0023] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air supply pipeline for pneumatic spraying equipment, comprising an air supply pipeline (1), characterized in that: The side wall of the air supply pipe (1) is movably sleeved with a plugging sleeve (5); the bottom of the inner concave surface of the plugging sleeve (5) is fixedly supported by a lower support ring (2); the top of the inner concave surface of the plugging sleeve (5) is fixedly supported by an upper support ring (3); a filter element (4) is fixedly sleeved between the lower support ring (2) and the upper support ring (3); the outside of the air supply pipe (1) is fixedly sleeved with a support ring (6); one side of the support ring (6) is fixedly connected to a support spring (7); and the other end of the support spring (7) is provided with a limit ring (8).

2. The air supply pipeline of a pneumatic spraying equipment according to claim 1, characterized in that: A partition plate (16) is fixedly mounted on the top end of the air supply pipe (1), and a plurality of one-way flow limiting structures are fixedly mounted above the partition plate (16).

3. The air supply pipeline of a pneumatic spraying equipment according to claim 1, characterized in that: The material of the blocking sleeve (5) is silicone, the inner side of the limiting ring (8) and the outer side of the blocking sleeve (5) are in contact with each other, and the number of the filter elements (4) in the inner cavity of the air supply pipeline (1) is not less than two.

4. The air supply pipeline for pneumatic spraying equipment according to claim 1, characterized in that: The outer diameters of the lower support ring (2) and the upper support ring (3) are the same as the inner diameter of the air supply pipe (1), and a ventilation port running through the upper and lower parts is provided inside the upper support ring (3).

5. The air supply pipeline for pneumatic spraying equipment according to claim 2, characterized in that: An upper separation sleeve (9) is fixedly mounted on the top surface of the separation plate (16), a low-pressure alarm (10) is fixedly mounted on the outside of the upper separation sleeve (9), and the upper separation sleeve (9) is mounted on the outside of all current limiting mechanisms.

6. The air supply pipeline of a pneumatic spraying equipment according to claim 2, characterized in that: The one-way flow limiting structure comprises a flow limiting tube (11), a support plate (12), a blocking spring (13), a blocking sheet (14), and a blocking ring (15); the flow limiting tube (11) is installed above a partition plate (16); the support plate (12) is supported in the inner cavity of the flow limiting tube (11); the blocking spring (13) is connected to the bottom of the support plate (12); the bottom end of the blocking spring (13) is fixedly connected to the top surface of the blocking sheet (14); and the blocking ring (15) is sleeved inside the flow limiting tube (11).

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