Large pipe inner wall spraying device with protection mechanism
By designing a spraying device with a closed space and a gas treatment system, the problem of isolating and purifying harmful gases during spraying on the inner wall of a large pipe is solved, a safe and efficient spraying process is achieved, and operational risks and environmental pollution are reduced.
Patent Information
- Application Number
- CN202422547535.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the existing technology, during the spraying process on the inner wall of a large pipe, workers need to wear gas masks to isolate themselves from harmful gases. Long hours of work lead to fatigue, and there is a lack of effective gas purification treatment, which poses an explosion risk.
A large tube inner wall spraying device with a protective mechanism was designed. It adopts a closed space spraying method and uses a gas treatment system composed of an activated carbon filter box, a platinum catalyst and an electric heating wire to purify harmful gases. Combined with an annular spray head and a motor-driven spray head movement, the spraying quality and safety are ensured.
It effectively isolates and purifies harmful gases, reduces operational risks, improves spraying efficiency and safety, and avoids the use of gas masks and potential explosion hazards.
Smart Images
Figure CN223393662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spraying devices, in particular to a large pipe inner wall spraying device with a protection mechanism. Background Art
[0002] The large-pipe inner wall spraying device with a protective mechanism is designed to ensure operator safety and consistent spray quality during the spraying process. It is primarily suitable for uniformly and efficiently spraying paint or coatings onto the inner walls of large-diameter pipes. By integrating advanced spraying technology and a safety mechanism, it minimizes operational risks and environmental pollution while ensuring spray quality.
[0003] During the process of spraying paint or coating, the volatile gases usually contain harmful volatile organic compounds, such as benzene, toluene, xylene, etc. These gases are harmful to human health and the environment. In the prior art, when spraying the inner wall of a large pipe, in order to ensure the spraying quality, manual assisted spraying is required. Most workers use gas masks to isolate harmful gases. Wearing a gas mask and working for a long time will increase fatigue. Even if some existing methods use a sealed space to isolate the harmful gases during spraying, however, there is a lack of processing equipment to purify the harmful gases. When the gas volatiles of the paint or coating inside the sealed space accumulate at a high content, it may cause an explosion accident. Therefore, a large pipe inner wall spraying device with a protective mechanism is proposed to solve the above problems. Utility Model Content
[0004] In order to solve the above technical problems, the utility model proposes a large tube inner wall spraying device with a protective mechanism. By spraying in a confined space, it is possible to avoid wearing a gas mask, and the harmful gases generated by spraying in the confined space can be promptly treated and purified, thereby improving emission efficiency.
[0005] The cam is fixedly provided with an air filter cover, and the top surface of the air filter cover is fixedly provided with an air filter cover, and the top surface of the air filter cover is fixedly connected to the air filter cover; the air filter cover is fixedly provided with an air filter cover on the top surface of the air filter cover; the air filter cover is fixedly provided with an air filter cover on the top surface of the air filter cover; the air filter cover is fixedly provided with an air filter cover on the top surface of the air filter cover; the air filter cover is fixedly provided with an air filter cover
[0006] In some embodiments, a collection box is slidably and detachably connected to one side of the processing box, an exhaust pipe is fixedly connected to one side of the processing box, and a control valve is installed on the surface of the exhaust pipe.
[0007] In some embodiments, the upper surface of the filter box is fixedly connected to a fan, the output end of the fan is fixedly connected to an output pipe, the end of the output pipe away from the fan is fixedly connected to the upper surface of the top cover, and one side of the processing box is fixedly connected to a connecting pipe, the end of the connecting pipe away from the processing box is fixedly connected to the input end of the fan.
[0008] In some embodiments, two fixing rings are fixedly connected to the inner bottom wall of the sealing box, the inner walls of the two fixing rings are slidably connected to two adaptive rods, the opposite surfaces of the two adaptive rods are fixedly connected to clamp rings, and the opposite surfaces of multiple clamp rings are provided with the same tube body.
[0009] In some embodiments, a threaded rod is rotatably connected to the inner wall of one side of the sealing box, a threaded block is threadedly connected to the surface of the threaded rod, a spray head is fixedly installed on the surface of the threaded block, and two feed pipes are fixedly connected to the surface of the spray head, and one end of the two feed pipes extends to the outside of the sealing box.
[0010] In some embodiments, two limit rods are fixedly connected to the inner wall of one side of the sealing box, two sliding holes are opened on one side of the threaded block, the inner walls of the two sliding holes are respectively slidably connected to the surfaces of the corresponding two limit rods, and a motor is fixedly installed on one side of the sealing box, and the output end of the motor is fixedly connected to one end of the threaded rod.
[0011] Compared with the prior art, the present invention has the following significant advantages:
[0012] First, the utility model can suck the gas into the filter box through the operation of the fan, pre-treat the xylene gas through the activated carbon filter box arranged inside the filter box, and pass the pre-treated gas into the treatment box through the output pipe. The internal temperature of the treatment box can be increased by the operation of the electric heating wire. The platinum catalyst contained in the pull-out box inside the air-permeable frame can undergo an oxidation reaction with the xylene gas at high temperature, and oxidize the xylene gas into carbon dioxide and water. The heat generated by the oxidation heat release of the inner wall of the treatment box can be absorbed through the arranged connecting pipe, so as to realize the preheating of the xylene gas and improve the oxidation effect. The impeller and cam can be driven to rotate when the gas is introduced, and then the rotating shaft is driven to rotate, so as to realize the rotation of the cam. The vibration of the air-permeable frame can be realized by cooperating with a plurality of springs, and then the vibration of the platinum catalyst inside the pull-out box is realized, so as to increase the contact area with the gas, thereby improving the oxidation reaction effect.
[0013] Secondly: The utility model can isolate the xylene gas inside the sealed box through the setting of the sealed box. The annular spray head can evenly spray the inner wall of the tube body. The motor drives the rotation of the threaded rod to realize the linear movement of the spray head, thereby improving the spraying effect. The backward spraying method is adopted, which will not scratch the sprayed area.
[0014] The invention solves the problem of wearing a gas mask for operation in the prior art and can improve the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of a three-dimensional structure provided in one embodiment of the present invention;
[0017] Figure 2 This is a schematic diagram of a cross-section structure provided in one embodiment of the present invention;
[0018] Figure 3 This is a schematic structural diagram of a gas processing mechanism provided in one embodiment of the present invention;
[0019] Figure 4 It is a schematic structural diagram of a spraying device provided in one embodiment of the present invention.
[0020] Description of reference numerals:
[0021] 1. Sealing box; 2. Filter box; 3. Fan; 4. Output pipe; 5. Connecting pipe; 6. Processing box; 7. Through slot; 8. Activated carbon filter box; 9. Top cover; 10. Slide; 11. Breathable frame; 12. Exhaust pipe; 13. Collection box; 14. Pull-out box; 15. Fixed plate; 16. Spring; 17. Rotating shaft; 18. Impeller; 19. Cam; 20. Heating wire; 21. Tube body; 22. Threaded rod; 23. Motor; 24. Limit rod; 25. Feed pipe; 26. Adaptive rod; 27. Clamp ring; 28. Threaded block; 29. Spray head; 30. Fixed ring. DETAILED DESCRIPTION
[0022] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] The utility model provides a large pipe inner wall spraying device with a protective mechanism through improvement. The technical solution of the utility model is:
[0024] like Figure 1-Figure 4 As shown, a large-tube inner wall spraying device with a protective mechanism comprises a sealing box 1, a through slot 7 is provided on the upper surface of the sealing box 1, and the inner wall of the through slot 7 is fixedly connected to the filter box 2, and the filter box 2 can be communicated with the sealing box 1 through the opened through slot 7, and the upper surface of the sealing box 1 is fixedly connected to the processing box 6, and the inner wall of the filter box 2 is slidably and detachably connected to the activated carbon filter box 8. The detachable connection between the activated carbon filter box 8 and the filter box 2 can facilitate the replacement of the activated carbon filter box 8, and a slide groove 10 is provided on one side of the processing box 6. A plurality of fixed plates 15 are fixedly connected to the inner wall of the processing box 6, and the opposite surfaces of the plurality of fixed plates 15 are fixedly connected to springs 16. Eight springs 16 are provided, which are symmetrically distributed on the upper and lower surfaces of the air-permeable frame 11. The inner wall of the processing box 6 is slidably connected to the air-permeable frame 11, and the surfaces of the air-permeable frame 11 are respectively connected to the corresponding plurality of springs. The spring 16 is fixedly connected to one end away from the fixed plate 15, and the inner wall of the air-permeable frame 11 is slidably and detachably connected to a pull-out box 14. The pull-out box 14 contains a platinum catalyst, which can catalyze the oxidation reaction of xylene with oxygen (or air) and convert it into carbon dioxide, water, harmless nitrogen and other substances, thereby achieving the purpose of purifying exhaust gas. The pull-out box 14 and the air-permeable frame 11 are detachably connected in a damping sliding manner to prevent the pull-out box 14 from slipping when the air-permeable frame 11 vibrates. The inner wall of the processing box 6 is rotatably connected to a rotating shaft 17, and the surface of the rotating shaft 17 is fixedly connected to an impeller 18 and two cams 19. The upper surface of the processing box 6 is provided with a top cover 9, and two heating wires 20 are fixedly installed on the inner top wall of the top cover 9. The heating wires 20 can heat the temperature inside the processing box 6 to provide a suitable temperature for the oxidation reaction.
[0025] like Figure 2 and Figure 3 As shown, in one embodiment, one side of the processing box 6 is slidably and detachably connected to a collection box 13, and one side of the processing box 6 is fixedly connected to an exhaust pipe 12. A control valve is installed on the surface of the exhaust pipe 12. The exhaust pipe 12 can be used to discharge the internal pressure in a timely manner, and the control valve can control the opening time of the exhaust pipe 12.
[0026] The upper surface of the filter box 2 is fixedly connected to the fan 3, and the output end of the fan 3 is fixedly connected to the output pipe 4. The end of the output pipe 4 away from the fan 3 is fixedly connected to the upper surface of the top cover 9. One side of the treatment box 6 is fixedly connected to a connecting pipe 5. The end of the connecting pipe 5 away from the treatment box 6 is fixedly connected to the input end of the fan 3. The heat inside the treatment box 6 can be recovered by setting the connecting pipe 5, thereby preheating the xylene gas.
[0027] like Figure 2 and Figure 4As shown, in one embodiment, two fixing rings 30 are fixedly connected to the inner bottom wall of the sealing box 1, and the inner walls of the two fixing rings 30 are slidably connected to two adaptive rods 26. The adaptive rod 26 consists of a slide rod and a return spring. The return spring is sleeved on the surface of the slide rod. The opposite surfaces of the two adaptive rods 26 are fixedly connected with clamping rings 27. The edges of the clamping rings 27 are rounded, which can reduce the friction between the end of the tube body 21 and the edge of the clamping ring 27 when inserting the tube body 21, thereby facilitating the avoidance of the clamping ring 27. The opposite surfaces of multiple clamping rings 27 are provided with the same tube body 21.
[0028] A threaded rod 22 is rotatably connected to the inner wall of one side of the sealing box 1, and a threaded block 28 is threadedly connected to the surface of the threaded rod 22. A spray head 29 is fixedly installed on the surface of the threaded block 28. Two feed pipes 25 are fixedly connected to the surface of the spray head 29, and one end of the two feed pipes 25 extends to the outside of the sealing box 1.
[0029] Two limit rods 24 are fixedly connected to the inner wall of one side of the sealing box 1, and two sliding holes are opened on one side of the threaded block 28. The inner walls of the two sliding holes are respectively slidably connected to the surfaces of the corresponding two limit rods 24. A motor 23 is fixedly installed on one side of the sealing box 1, and the output end of the motor 23 is fixedly connected to one end of the threaded rod 22.
[0030] The specific working method is: when in use, first open the sealing door set on one side of the sealing box 1, limit the tube body 21 through the clamping ring inside the two fixing rings 30, the spray head 29 in the figure is the initial position, connect the two feeding pipes 25 to the external feeding device, start the switch to realize spraying, the annular spray head 29 can evenly spray the inner wall of the tube body 21, and the motor 23 drives the rotation of the threaded rod 22 to realize the linear movement of the spray head 29, thereby improving the spraying effect, and adopting the backward spraying method, it will not scratch the sprayed area. Through the setting of the sealing box 1, the xylene gas can be isolated from the inside of the sealing box 1, and through the work of the fan 3, the gas can be sucked into the filter box 2, and the xylene gas is pretreated through the activated carbon filter box 8 set inside the filter box 2, and the pretreated gas is passed into the outlet pipe 4. Inside the processing box 6, the internal temperature can be increased by the operation of the electric heating wire 20. The platinum catalyst contained in the pull-out box 14 inside the air frame 11 can undergo an oxidation reaction with the xylene gas at high temperature to oxidize the xylene gas into carbon dioxide and water. The heat generated by the oxidation heat release of the inner wall of the processing box 6 can be absorbed through the provided connecting pipe 5 to achieve preheating of the xylene gas and improve the oxidation effect. The provided impeller 18 and cam 19 can drive the rotation of the impeller 18 when the gas is introduced, and then drive the rotation of the rotating shaft 17 to realize the rotation of the cam 19. In conjunction with multiple springs 16, the air frame 11 can be vibrated, and then the platinum catalyst inside the pull-out box 14 can be vibrated, thereby increasing the contact area with the gas and improving the oxidation reaction effect. The exhaust pipe 12 can realize timely internal pressure relief.
[0031] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.
Claims
1. A large pipe inner wall spraying device with a protective mechanism, comprising a sealing box (1), characterized in that: The upper surface of the sealing box (1) is provided with a through groove (7), the inner wall of the through groove (7) is fixedly connected to the filter box (2), the upper surface of the sealing box (1) is fixedly connected to the treatment box (6), the inner wall of the filter box (2) is slidably and detachably connected to the activated carbon filter box (8), a sliding groove (10) is provided on one side of the treatment box (6), the inner wall of the treatment box (6) is fixedly connected to a plurality of fixed plates (15), the opposite surfaces of the plurality of fixed plates (15) are fixedly connected to springs (16), the inner wall of the treatment box (6) is slidably connected to the inner wall of the treatment box (6) A ventilation frame (11) is connected, and the surfaces of the ventilation frame (11) are fixedly connected to the ends of the corresponding multiple springs (16) away from the fixed plate (15). The inner wall of the ventilation frame (11) is slidably and detachably connected to the pull-out box (14). The inner wall of the processing box (6) is rotatably connected to the rotating shaft (17), and the surfaces of the rotating shaft (17) are fixedly connected to the impeller (18) and two cams (19). The upper surface of the processing box (6) is provided with a top cover (9), and the inner top wall of the top cover (9) is fixedly installed with two heating wires (20).
2. The large pipe inner wall spraying device with a protective mechanism according to claim 1 is characterized in that: One side of the processing box (6) is slidably and detachably connected to a collecting box (13), and one side of the processing box (6) is fixedly connected to an exhaust pipe (12), and a control valve is installed on the surface of the exhaust pipe (12).
3. The large pipe inner wall spraying device with a protective mechanism according to claim 2 is characterized in that: The upper surface of the filter box (2) is fixedly connected to a fan (3), the output end of the fan (3) is fixedly connected to an output pipe (4), and the end of the output pipe (4) away from the fan (3) is fixedly connected to the upper surface of the top cover (9). One side of the treatment box (6) is fixedly connected to a connecting pipe (5), and the end of the connecting pipe (5) away from the treatment box (6) is fixedly connected to the input end of the fan (3).
4. The large pipe inner wall spraying device with a protective mechanism according to claim 1 is characterized in that: The inner bottom wall of the sealing box (1) is fixedly connected to two fixing rings (30), the inner walls of the two fixing rings (30) are slidably connected to two adaptive rods (26), the opposite surfaces of the two adaptive rods (26) are fixedly connected to clamping rings (27), and the opposite surfaces of the multiple clamping rings (27) are provided with the same tube body (21).
5. The large pipe inner wall spraying device with a protective mechanism according to claim 4 is characterized in that: A threaded rod (22) is rotatably connected to the inner wall of one side of the sealing box (1), a threaded block (28) is threadedly connected to the surface of the threaded rod (22), a spray head (29) is fixedly mounted on the surface of the threaded block (28), and two feed pipes (25) are fixedly connected to the surface of the spray head (29), one end of each of the two feed pipes (25) extends to the outside of the sealing box (1).
6. The large pipe inner wall spraying device with a protective mechanism according to claim 5, characterized in that: Two limiting rods (24) are fixedly connected to the inner wall of one side of the sealing box (1); two sliding holes are provided on one side of the threaded block (28); the inner walls of the two sliding holes are respectively slidably connected to the surfaces of the two corresponding limiting rods (24); a motor (23) is fixedly installed on one side of the sealing box (1); the output end of the motor (23) is fixedly connected to one end of the threaded rod (22).