Spraying robot process fluid equipment connecting structure

Abstract

The utility model discloses a connecting structure for process fluid equipment of a spraying robot, which relates to the technical field of spraying equipment and comprises a pipeline, flange rings are fixed at two ends of the pipeline, connecting sleeves are sleeved on the two flange rings, and the two connecting sleeves are fixed with the two flange rings through connecting bolts; wherein the outer side of one connecting sleeve is rotationally connected with a reducing sleeve, and an internal thread part is formed on the inner side, far away from one connecting sleeve, of the reducing sleeve. Through the arrangement of the connecting sleeves and the reducing sleeve, uniform and reasonable stress points can be formed by using the whole connecting sleeve structure, point stress is avoided, the reducing sleeve is arranged on the outer side, and therefore the connecting sleeve structure is more stable, and the service life of the connecting sleeve structure is prolonged. According to the connecting structure, the reliability of the connecting structure can be higher, meanwhile, by enlarging the containing volume and the sectional area of the connecting position, the pressure is reduced when fluid passes through the connecting position, the connecting position is prevented from bearing large pressure, and the good anti-leakage effect can be achieved by reducing the pressure of the connecting position.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a connection structure for a process fluid device of a spraying robot. Background Technology

[0002] Traditional sprayers (including spraying robots) suffer from aging high-pressure hoses after prolonged use. This causes excessive changes in the hose (fluid delivery device) angle during spray gun movement, leading to cracks in the hose walls at the connections and paint leakage. Furthermore, with one end of the existing high-pressure hose fixed to the sprayer and the other to the spray gun, replacement by a professional is required if the hose is damaged, which is inconvenient and reduces work efficiency.

[0003] To address the aforementioned issues, patent document CN214021616U discloses a pipe connection structure for a paint sprayer used in electrofused brick sand molds. The structure includes a metal connector fixedly connected to a spray gun, a movable tube sleeved on the outer wall of the metal connector, triangular locking teeth arranged in an array on the tube wall of the metal connector, a fixed tube fixedly installed on the outer wall of the metal connector, and a locking mechanism for locking the movable tube on the side of the fixed tube opposite to the movable tube.

[0004] Based on the above search and combined with existing technology, it was found that although the existing connection structure achieves quick disassembly and assembly, its stress distribution is uneven, and the axial stress point at the connection is concentrated on the triangular teeth, resulting in low overall structural reliability. At the same time, its sealing performance is not significantly improved compared with the traditional connection structure, and its pressure resistance and sealing performance are poor. Therefore, a connection structure for the process fluid equipment of the spraying robot is needed. Utility Model Content

[0005] The purpose of this application is to provide a connection structure for the process fluid equipment of a spraying robot to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a connection structure for a process fluid device of a spraying robot, comprising a pipe with flange rings fixed at both ends, a connecting sleeve fitted on each of the two flange rings, and the two connecting sleeves being fixed to the two flange rings by connecting bolts;

[0007] One of the connecting sleeves is rotatably connected to an adapter sleeve on its outer side, and the adapter sleeve has an internal thread on its inner side away from one of the connecting sleeves;

[0008] The outer wall of the other connecting sleeve is provided with an external thread groove that matches the internal thread.

[0009] A flexible sealing ring is also fixed inside the adapter sleeve, and the two sides of the flexible sealing ring are respectively interference-fitted with the ends of the two connecting sleeves.

[0010] Preferably, a pressure-bearing sealing ring is fixed inside one of the connecting sleeves. The pressure-bearing sealing ring is located at the end of the connecting sleeve away from the pipe, and the end of the pressure-bearing sealing ring extends to the inside of the other connecting sleeve. The outer side of the pressure-bearing sealing ring abuts against the inside of the other connecting sleeve.

[0011] The inner side of the flexible sealing ring is interference-fitted with the outer side of the pressure-bearing sealing ring.

[0012] Preferably, an inner sealing gasket is movably embedded inside the connecting sleeve. The inner diameter of the inner sealing gasket is the same as the inner diameter of the pipe, and the outer diameter of the inner sealing gasket is the same as the outer diameter of the flange ring. A through hole corresponding to the through hole of the flange ring is opened on the inner sealing gasket.

[0013] The cap of the connecting bolt is pressed against one side of the inner sealing gasket, so that the inner sealing gasket fits tightly against the side wall of the flange ring.

[0014] Preferably, an outer sealing gasket is also fixed inside the connecting sleeve on one side. The outer sealing gasket is movably sleeved on the pipe, and one side of the outer sealing gasket abuts against the side of the flange ring away from the inner sealing gasket.

[0015] Preferably, both the inner and outer sealing gaskets are annular gaskets made of water-absorbing and expanding material, and when they expand, they are interference-fitted with the inner wall of the connecting sleeve, the side wall of the flange ring, and the side wall of the pipe.

[0016] Preferably, one of the connecting sleeves has a groove on its outer wall, and a rotatable bearing is fixedly embedded in the groove. The adapter sleeve is rotatably connected to the connecting sleeve through the bearing.

[0017] In summary, the technical effects and advantages of this utility model are as follows:

[0018] 1. In this utility model, by setting up connecting sleeves and adapter sleeves, before connecting two pipes, the two connecting sleeves are first fixed to the flange rings of the two pipes by connecting bolts, so that the ends of the connecting sleeves are tightly connected to the flange rings and the outside of the pipes. Then, simply rotate the adapter sleeve, so that the adapter sleeve can fix the two connecting sleeves together through the cooperation of the internal thread and the external thread groove, and the two sides of the flexible sealing ring are pressed against the ends of the two connecting sleeves to achieve a sealed connection between the two connecting sleeves. Compared with the existing connection structure, the use of an integral connecting sleeve structure can form a uniform and reasonable stress point, avoiding point stress. The adapter sleeve on the outside can make the connection structure more reliable. At the same time, by increasing the capacity and cross-sectional area of ​​the connection, the pressure of the fluid when passing through the connection is reduced, thereby avoiding the connection from bearing too much pressure. Reducing the pressure at the connection can achieve a good anti-leakage effect.

[0019] 2. In this utility model, the connection structure can be quickly assembled on most existing pipes, thereby avoiding the need for additional processing and modification of the pipe ends required by the existing connection structure. It can achieve the effect of rapid improvement, and at the same time, it can be disassembled and assembled, making it more flexible in use and conducive to the promotion and use of this connection structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0022] Figure 2 This is a schematic cross-sectional view of the structure in this embodiment;

[0023] Figure 3 This is a schematic diagram of the separation structure of the two connecting sleeves in this embodiment;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of one of the connecting sleeves and pipes in this embodiment.

[0025] In the diagram: 1. Pipe; 11. Flange ring; 2. Connecting sleeve; 21. External thread groove; 22. Embedded groove; 3. Connecting bolt; 4. Adapter sleeve; 41. Internal thread section; 5. Flexible sealing ring; 6. Pressure-bearing sealing ring; 7. Inner sealing gasket; 8. Outer sealing gasket; 9. Bearing. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Reference Figures 1-4 The diagram shows a process fluid equipment connection structure for a spraying robot, including a pipe 1 with flange rings 11 fixed at both ends, a connecting sleeve 2 fitted on each of the two flange rings 11, and the two connecting sleeves 2 being fixed to the two flange rings 11 by connecting bolts 3.

[0028] One of the connecting sleeves 2 is rotatably connected to the outer side of the adapter sleeve 4, and the adapter sleeve 4 has an internal thread 41 formed on the inner side away from one of the connecting sleeves 2;

[0029] The outer wall of the other connecting sleeve 2 is provided with an external thread groove 21 that is adapted to the internal thread part 41;

[0030] The inner side of the adapter sleeve 4 is also fixed with a flexible sealing ring 5, and the two sides of the flexible sealing ring 5 are respectively interference-fitted with the ends of the two connecting sleeves 2.

[0031] Based on the above structure, before connecting the two pipes 1, the two connecting sleeves 2 are first fixed to the flange rings 11 of the two pipes 1 by connecting bolts 3, so that the ends of the connecting sleeves 2 are tightly connected to the flange rings 11 and the outside of the pipes 1. Then, simply rotate the adapter sleeve 4, so that the adapter sleeve 4 can fix the two connecting sleeves 2 through the cooperation of the internal thread part 41 and the external thread groove 21, and make the two sides of the flexible sealing ring 5 press against the ends of the two connecting sleeves 2 to achieve a sealed connection between the two connecting sleeves 2. Compared with the existing connection structure, the use of the integral connecting sleeve 2 structure can form a uniform and reasonable stress point, avoid point stress, and the adapter sleeve 4 on the outside can make the connection structure more reliable. At the same time, by increasing the capacity and cross-sectional area of ​​the connection, the pressure of the fluid when passing through the connection is reduced, thereby avoiding the connection from bearing too much pressure. Reducing the pressure at the connection can play a good role in preventing leakage.

[0032] Furthermore, this connection structure can be quickly assembled onto most existing pipes 1 (most existing pipes have flange rings 11 for connection at the ends), thus avoiding the need for additional processing and modification of the pipe ends required by the existing connection structure. This enables rapid improvement and allows for detachable assembly, making it more flexible in use and conducive to the promotion and use of this connection structure.

[0033] Furthermore, a pressure-bearing sealing ring 6 is fixed inside one of the connecting sleeves 2. The pressure-bearing sealing ring 6 is located at the end of the connecting sleeve 2 away from the pipe 1. The end of the pressure-bearing sealing ring 6 extends to the inside of the other connecting sleeve 2, and the outer side of the pressure-bearing sealing ring 6 abuts against the inside of the other connecting sleeve 2.

[0034] The inner side of the flexible sealing ring 5 is interference-fitted with the outer side of the pressure-bearing sealing ring 6. The setting of the pressure-bearing sealing ring 6 can further improve the sealing performance of the connection between the two connecting sleeves 2, thereby enhancing the sealing performance of the connection between the two pipes 1. At the same time, it can further enhance the structural strength of the connection between the two connecting sleeves 2 from the inside, improving the sealing performance and pressure resistance of the connection structure.

[0035] Furthermore, an inner sealing gasket 7 is movably embedded inside the connecting sleeve 2. The inner diameter of the inner sealing gasket 7 is the same as the inner diameter of the pipe 1, and the outer diameter of the inner sealing gasket 7 is the same as the outer diameter of the flange ring 11. A through hole corresponding to the through hole of the flange ring 11 is opened on the inner sealing gasket 7.

[0036] The cap of the connecting bolt 3 abuts against one side of the inner sealing gasket 7, so that the inner sealing gasket 7 fits tightly against the side wall of the flange ring 11;

[0037] An outer sealing gasket 8 is also fixed inside the sleeve 2. The outer sealing gasket 8 is movably sleeved on the pipe 1, and one side of the outer sealing gasket 8 abuts against the side of the flange ring 11 away from the inner sealing gasket 7.

[0038] Both the inner sealing gasket 7 and the outer sealing gasket 8 are annular gaskets made of water-absorbing and expanding material. When the inner sealing gasket 7 and the outer sealing gasket 8 expand, they are interference-fitted with the inner wall of the connecting sleeve 2, the side wall of the flange ring 11, and the side wall of the pipe 1.

[0039] By setting the inner sealing gasket 7 and the outer sealing gasket 8, the sealing performance of the connection between the connecting sleeve 2, the flange ring 11, and the pipe 1 is enhanced, forming a double sealing structure inside and outside, thereby enhancing the anti-leakage performance of the connection structure.

[0040] Furthermore, one of the connecting sleeves 2 has a groove 22 on its outer wall, and a rotatable bearing 9 is fixedly embedded in the groove 22. The adapter sleeve 4 is rotatably connected to the connecting sleeve 2 through the bearing 9.

[0041] The working principle of this utility model is as follows: In daily use, before connecting two pipes 1, the two connecting sleeves 2 are first fixed to the flange rings 11 of the two pipes 1 by connecting bolts 3, so that the ends of the connecting sleeves 2 are tightly connected to the flange rings 11 and the outside of the pipes 1. Then, simply rotate the adapter sleeve 4, so that the adapter sleeve 4 can fix the two connecting sleeves 2 by the cooperation of the internal thread part 41 and the external thread groove 21, and so that the two sides of the flexible sealing ring 5 are pressed against the ends of the two connecting sleeves 2, thereby achieving a sealed connection between the two connecting sleeves 2.

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

Claims

1. A spray robot process fluid apparatus connection structure comprising a pipe (1) having flange rings (11) fixed at both ends, characterized in that: A connecting sleeve (2) is fitted on each of the two flange rings (11), and the two connecting sleeves (2) are fixed to the two flange rings (11) by connecting bolts (3); One of the connecting sleeves (2) is rotatably connected to the outer side of the adapter sleeve (4), and the adapter sleeve (4) has an internal thread (41) formed on the inner side away from one of the connecting sleeves (2); The outer wall of the other connecting sleeve (2) is provided with an external thread groove (21) that is adapted to the internal thread portion (41); The inner side of the adapter sleeve (4) is also fixed with a flexible sealing ring (5), and the two sides of the flexible sealing ring (5) are respectively interference-fitted with the ends of the two connecting sleeves (2).

2. A spray robot process fluid apparatus connection structure according to claim 1, characterized in that: One of the connecting sleeves (2) is also fixed with a pressure-bearing sealing ring (6) on the inner side. The pressure-bearing sealing ring (6) is located at the end of the connecting sleeve (2) away from the pipe (1). The end of the pressure-bearing sealing ring (6) extends to the inner side of the other connecting sleeve (2), and the outer side of the pressure-bearing sealing ring (6) abuts against the inner side of the other connecting sleeve (2). The inner side of the flexible sealing ring (5) is interference-fitted with the outer side of the pressure-bearing sealing ring (6).

3. A spray robot process fluid apparatus connection structure according to claim 1, characterized in that: The inner side of the connecting sleeve (2) is movably embedded with an inner sealing gasket (7). The inner diameter of the inner sealing gasket (7) is consistent with the inner diameter of the pipe (1). The outer diameter of the inner sealing gasket (7) is consistent with the outer diameter of the flange ring (11). The inner sealing gasket (7) has a through hole corresponding to the through hole of the flange ring (11). The cap of the connecting bolt (3) abuts against one side of the inner sealing gasket (7), so that the inner sealing gasket (7) fits against the side wall of the flange ring (11).

4. A spray robot process fluid apparatus connection structure according to claim 3, characterized in that: An outer sealing gasket (8) is also fixed inside the connecting sleeve (2). The outer sealing gasket (8) is movably sleeved on the pipe (1). One side of the outer sealing gasket (8) is pressed against the side of the flange ring (11) away from the inner sealing gasket (7).

5. A spray robot process fluid apparatus connection structure according to claim 4, characterized in that: Both the inner sealing gasket (7) and the outer sealing gasket (8) are annular gaskets made of water-absorbing and expanding material. When the inner sealing gasket (7) and the outer sealing gasket (8) expand, they are interference fit with the inner wall of the connecting sleeve (2), the side wall of the flange ring (11), and the side wall of the pipe (1).

6. A process fluid apparatus connection structure for a spray painting robot according to any one of claims 1 to 5, characterized in that: One of the connecting sleeves (2) has a groove (22) on its outer wall, and a rotatable bearing (9) is fixedly embedded in the groove (22). The adapter sleeve (4) is rotatably connected to the connecting sleeve (2) through the bearing (9).

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