Automatic oil injection and gas connection device for duct piece

Abstract

The utility model discloses an automatic oil injection and gas connection device for a duct piece, which comprises a first gas pipe, and the left side of the first gas pipe is connected with a first valve; the left side of the first air pipe extends into the oil groove to form a sealing mechanism, the middle of the oil groove is connected with a second valve, the top of the oil groove is connected with an oil storage tank, the left side of the oil groove is connected with a third valve, the left end of the oil groove is connected with a second air pipe, and the bottom of the second air pipe is connected with an air cylinder. And the right side of the second air pipe extends into the connector to form a sealing mechanism, the right side of the connector is connected with the mold, and a limiting rod is fixed to the bottom of the second air pipe. According to the automatic oil injection and gas connection device for the duct piece, the limiting rod is installed, the second gas pipe is jacked by the air cylinder to move, then the second gas pipe can stretch into the connector, conveying of lubricating oil is facilitated, the limiting rod can limit the second gas pipe, and due to the fact that the structure is simple, follow-up maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of segment oil injection and air connection technology, specifically to an automatic segment oil injection and air connection device. Background Technology

[0002] The automatic oil injection and air connection device for tunnel segments generates high-frequency vibration through a pneumatic vibrator, which makes the concrete flow evenly in the mold and fully fill all corners, effectively eliminating air bubbles and voids, thus ensuring the long-term stability of the tunnel lining structure.

[0003] The existing automatic oil injection and air connection device for tunnel segments requires employees to manually insert and remove air hoses during lubrication, which increases the labor intensity of employees. In addition, each insertion and removal of air hoses requires the production line to be stopped.

[0004] To address the aforementioned deficiencies, CN218803062U discloses an automatic nozzle docking device for pneumatic segment molds. This device utilizes a hollow shaft hydraulic cylinder as the automatic nozzle extension and retraction mechanism. The hollow shaft is connected at both ends to a flexible air hose and a quick-connect female connector for the mold, respectively. By fixing the hydraulic cylinder to a cross slide with vertical and horizontal sliding capabilities, automatic guidance is achieved during the cylinder's lifting process, ensuring precise nozzle docking. The design, fabrication, and use of this automatic nozzle docking device not only solves the technical challenge of automating the docking between the quick-connect male connector of the mold and the quick-connect female connector of the equipment's air circuit during pneumatic vibration of segment molds, but also improves the efficiency and quality of segment production lines. It offers significant economic, social, and environmental benefits and has considerable practical and promotional value.

[0005] In actual use of the above-mentioned device, although the purpose of automatic docking is achieved by hydraulic cylinders, the hydraulic cylinders facilitate docking of the air nozzles by automatic guidance. However, the use of electrical equipment to assist in docking increases the complexity of use and makes subsequent maintenance inconvenient.

[0006] Therefore, we proposed an automatic oil injection and air connection device for tunnel segments, which can effectively solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic oil injection and air connection device for tunnel segments, in order to solve the problem mentioned in the background art that the current hydraulic cylinders on the market use automatic guidance to facilitate the connection of air nozzles, but the use of electrical equipment to assist in the connection increases the complexity of use and makes subsequent maintenance inconvenient.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic oil injection and air connection device for pipe segments, including a first air pipe, with a first valve connected to the left side of the first air pipe;

[0009] The left side of the first air pipe extends into the interior of the oil tank to form a sealing mechanism, and a second valve is connected to the middle of the oil tank. An oil storage tank is connected to the top of the oil tank. A third valve is connected to the left side of the oil tank, and a second air pipe is connected to the left end of the oil tank. A cylinder is connected to the bottom of the second air pipe. The right side of the second air pipe extends into the interior of the connector to form a sealing mechanism, and the right side of the connector is connected to the mold. A limit rod is fixed to the bottom of the second air pipe, and the right side of the limit rod extends into the interior of the connector to form a limiting mechanism.

[0010] Preferably, the connector has a slider internally slidably connected, and the outer end of the slider slides through and onto a fixed rod, and the fixed rod is fixed inside the connector.

[0011] Preferably, a first spring is nested on the right side of the fixing rod, and the right side of the first spring is connected inside the connector, and the left end of the first spring is connected to the right side of the slider.

[0012] Preferably, a pull rope is connected to the left side of the outer end of the slider, and the left end of the pull rope extends into the interior of the gas storage tube to form a sliding mechanism, and the gas storage tube is nested inside the connector.

[0013] Preferably, the left end of the pull rope is connected to the right side of the push plate, and the push plate slides inside the gas storage pipe to form a sealing mechanism.

[0014] Preferably, the left end of the push plate is connected to a second spring, and the left end of the second spring is connected inside the gas storage pipe to form a reset mechanism.

[0015] Preferably, the inner end of the gas storage pipe is connected to a sealing ring, and the outer end of the sealing ring is fixed to the inner wall of the connector.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the automatic oil injection and air connection device for the tunnel segment facilitates subsequent maintenance and has good sealing performance; the use of the limiting rod improves the stability of the connection, thereby facilitating subsequent maintenance; and the use of the sealing ring improves the sealing performance during use. The specific details are as follows:

[0017] (1) A limit rod is provided, and the second air pipe is moved by the cylinder, so that the second air pipe can be inserted into the inside of the connector, which facilitates the delivery of lubricating oil. The limit rod can limit the second air pipe. Due to its simple structure, it is convenient for subsequent maintenance.

[0018] (2) A sealing ring is provided. The second air pipe drives the slider to move, which in turn drives the push plate to move. This allows the push plate to deliver air into the sealing ring, thereby sealing the connection between the second air pipe and the connector and improving the sealing performance.

[0019] (3) A first spring is provided, which is nested on the right side of the fixing rod, and the right side of the first spring is connected to the inside of the connector, and the left end of the first spring is connected to the right side of the slider, so that the first spring can drive the slider to reset, thereby facilitating the slider to move again.

[0020] (4) A second spring is provided. The second spring is connected to the left end of the push plate, and the left end of the second spring is connected to the inside of the gas storage tube to form a reset mechanism. The push plate can be reset by the second spring, which facilitates the generation of negative pressure in the gas storage tube, thus facilitating the re-transmission of gas to the inside of the gas storage tube.

[0021] (5) A pull rope is provided, and the left end of the pull rope is connected to the right side of the push plate. The push plate slides inside the gas storage pipe to form a sealing mechanism, so that the pull rope can move and drive the push plate to move, thereby facilitating the delivery of gas. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure between the oil tank and the oil storage tank of this utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure between the second air pipe and the cylinder of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the cylinder after it has moved according to this utility model.

[0026] Figure 5 This is a schematic diagram of the connection structure between the connector and the sealing ring of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure between the gas storage pipe and the push plate of this utility model.

[0028] In the diagram: 1. First air pipe; 2. First valve; 3. Oil tank; 4. Oil storage tank; 5. Second valve; 6. Second air pipe; 7. Third valve; 8. Cylinder; 9. Limiting rod; 10. Connector; 11. Mold; 12. Slider; 13. Fixing rod; 14. First spring; 15. Pull rope; 16. Air storage pipe; 17. Push plate; 18. Second spring; 19. Sealing ring. Detailed Implementation

[0029] 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.

[0030] Example 1: The automatic oil injection and air connection device for tunnel segments solves the problem that existing hydraulic cylinders use automatic guidance to facilitate air nozzle docking, but the use of electrical equipment to assist in docking increases the complexity of use and makes subsequent maintenance inconvenient. The use of the limit rod 9 improves the accuracy of the connection. The following is disclosed:

[0031] The left side of the first air pipe 1 is connected to the first valve 2; the left side of the first air pipe 1 extends into the interior of the oil tank 3 to form a sealing mechanism, and the middle of the oil tank 3 is connected to the second valve 5, and the top of the oil tank 3 is connected to the oil storage tank 4. The left side of the oil tank 3 is connected to the third valve 7, and the left end of the oil tank 3 is connected to the second air pipe 6, and the bottom of the second air pipe 6 is connected to the cylinder 8. The right side of the second air pipe 6 extends into the interior of the connector 10 to form a sealing mechanism, and the right side of the connector 10 is connected to the mold 11. The bottom of the second air pipe 6 is fixed with a limit rod 9, and the right side of the limit rod 9 extends into the interior of the connector 10 to form a limit mechanism.

[0032] refer to Figures 1 to 4 When lubrication of mold 11 is required, the first valve 2 is opened, allowing gas to be delivered to the interior of oil tank 3 through the first air pipe 1. The second valve 5 delivers lubricating oil from oil storage tank 4 to the interior of oil tank 3. The third valve 7 is opened, allowing air-mixed lubricating oil to be delivered to the interior of second air pipe 6. The atomized lubricating oil is then delivered to the interior of mold 11 through second air pipe 6, thus achieving lubrication. Cylinder 8 moves second air pipe 6, allowing it to slide into connector 10. Second air pipe 6 also drives limit rod 9 to extend into connector 10, thus limiting second air pipe 6 and improving the stability of its insertion. Due to its simple structure, it is easy to maintain. The atomized lubricating oil then enters the interior of mold 11 for lubrication.

[0033] Example 2: The automatic oil injection and air connection device for pipe segments solves the problem of poor sealing after the connection between the existing second air pipe 6 and connector 10. The sealing performance between the second air pipe 6 and connector 10 can be improved by using the sealing ring 19. The following is disclosed:

[0034] The connector 10 has a slider 12 slidably connected inside, and the outer end of the slider 12 slides through and slides on the fixed rod 13. The fixed rod 13 is fixed inside the connector 10. The right side of the fixed rod 13 is nested with a first spring 14, and the right side of the first spring 14 is connected to the inside of the connector 10. The left end of the first spring 14 is connected to the right side of the slider 12. The left side of the outer end of the slider 12 is connected with a pull rope 15, and the left end of the pull rope 15 extends into the interior of the air storage tube 16 to form a sliding mechanism. The air storage tube 16 is nested inside the connector 10.

[0035] refer to Figures 2 to 6 The movement of the second air tube 6 extends into the connector 10, and the movement of the second air tube 6 compresses the slider 12, allowing the slider 12 to slide on the fixed rod 13. The movement of the slider 12 also compresses the first spring 14, causing the first spring 14 to be compressed. The movement of the slider 12 pulls the pull rope 15, causing the pull rope 15 to move and drive the push plate 17 to slide inside the air storage tube 16. This allows the push plate 17 to compress the gas inside the air storage tube 16, thus transporting the gas inside the air storage tube 16 to the inside of the sealing ring 19. The movement of the push plate 17 also pulls the second spring 18, causing the second spring 18 to be stretched and stressed. This causes the sealing ring 19 to expand, allowing the sealing ring 19 to fit against the outer wall of the second air tube 6, thus enabling the second air tube 6 to be tightly connected to the connector 10, thereby improving the sealing performance of the connection between the connector 10 and the second air tube 6.

[0036] Example 3: The automatic oil injection and air connection device for the pipe segments solves the problem of easy wear and damage to the sealing ring 19 in Example 2. By using the second spring 18, friction on the sealing ring 19 can be avoided, thereby improving the service life of the sealing ring 19. The following is disclosed:

[0037] The left end of the pull rope 15 is connected to the right side of the push plate 17, and the push plate 17 slides inside the gas storage tube 16 to form a sealing mechanism. The left end of the push plate 17 is connected to a second spring 18, and the left end of the second spring 18 is connected to the inside of the gas storage tube 16 to form a reset mechanism. The inner end of the gas storage tube 16 is connected to a sealing ring 19, and the outer end of the sealing ring 19 is fixed to the inner wall of the connector 10.

[0038] refer to Figures 2 to 6When the cylinder 8 moves the second air pipe 6, it can detach from the connector 10. This movement of the second air pipe 6 releases the pressure on the slider 12, and the slider 12 is then reset by the force of the first spring 14. This loosens the pull rope 15, and the push plate 17 is reset by the force of the second spring 18. This creates negative pressure in the air storage pipe 16, allowing the gas in the sealing ring 19 to be re-sent to the air storage pipe 16 for storage. This causes the sealing ring 19 to deflate, reducing the damage caused by friction when the second air pipe 6 detaches, and thus improving the service life of the sealing ring 19.

[0039] Working principle: When using this automatic oil injection and air connection device for pipe segments, firstly, refer to... Figures 1 to 4 When the mold 11 needs to be lubricated, the first valve 2 is opened, allowing gas to be delivered to the inside of the oil tank 3 through the first air pipe 1. The third valve 7 is opened, allowing air mixed with lubricating oil to be delivered to the inside of the second air pipe 6. The cylinder 8 can drive the second air pipe 6 to move, thereby allowing the second air pipe 6 to slide into the inside of the connector 10. The limiting rod 9 can limit the second air pipe 6, thereby improving the stability of the insertion of the second air pipe 6. Furthermore, due to its relatively simple structure, it is convenient for subsequent maintenance.

[0040] refer to Figures 2 to 6 The second air tube 6 moves and extends into the interior of the connector 10, and the movement of the second air tube 6 compresses the slider 12, which in turn allows the slider 12 to slide on the fixed rod 13. The movement of the slider 12 pulls the pull rope 15, which in turn causes the pull rope 15 to move and drive the push plate 17 to slide inside the air storage tube 16. This allows the push plate 17 to compress the gas inside the air storage tube 16, and the movement of the push plate 17 pulls the second spring 18, which causes the sealing ring 19 to expand. This allows the sealing ring 19 to fit against the outer wall of the second air tube 6, thereby improving the sealing performance of the connection between the connector 10 and the second air tube 6.

[0041] refer to Figures 2 to 6 When the cylinder 8 moves the second air pipe 6, the second air pipe 6 can be disengaged from the inside of the connector 10. The movement of the second air pipe 6 will release the pressure on the slider 12. Then, the force of the second spring 18 will drive the push plate 17 to reset, which will generate negative pressure in the air storage pipe 16. This will allow the gas in the sealing ring 19 to be re-sent to the inside of the air storage pipe 16 for storage, thereby reducing the damage caused by friction on the sealing ring 19 when the second air pipe 6 is disengaged, and thus improving the service life of the sealing ring 19.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. Automatic oil injection and gas connection device for pipe piece, comprising a first gas pipe (1), the left side of the first gas pipe (1) is connected with a first valve (2); characterized in that the left side of the first gas pipe (1) extends into the inside of an oil tank (3) to constitute a sealing mechanism, the middle part of the oil tank (3) is connected with a second valve (5), the top of the oil tank (3) is connected with an oil storage tank (4), the left side of the oil tank (3) is connected with a third valve (7), the left end of the oil tank (3) is connected with a second gas pipe (6), the bottom of the second gas pipe (6) is connected with a gas cylinder (8), the right side of the second gas pipe (6) extends into the inside of a connector (10) to constitute a sealing mechanism, the right side of the connector (10) is connected with a mold (11), and the bottom of the second gas pipe (6) is fixed with a limiting rod (9), the right side of the limiting rod (9) extends into the inside of the connector (10) to constitute a limiting mechanism.

2. The automatic pipe patch oiling and air connection device of claim 1, wherein: A sliding block (12) is slidably connected in the inside of the connector (10), the outer end of the sliding block (12) penetrates and slides on a fixed rod (13), and the fixed rod (13) is fixed in the inside of the connector (10).

3. The automatic pipe patch oiling and air connection device of claim 2, wherein: A first spring (14) is nested on the right side of the fixed rod (13), the right side of the first spring (14) is connected in the inside of the connector (10), and the left end of the first spring (14) is connected on the right side of the sliding block (12).

4. The automatic pipe patch oiling and air connection device of claim 2, wherein: A pull rope (15) is connected on the left side of the outer end of the sliding block (12), the left end of the pull rope (15) extends into the inside of a gas storage pipe (16) to constitute a sliding mechanism, and the gas storage pipe (16) is nested in the inside of the connector (10).

5. The automatic pipe patch oiling and air connection device of claim 4, wherein: The left end of the pull rope (15) is connected with the right side of a push plate (17), and the push plate (17) slides in the inside of the gas storage pipe (16) to constitute a sealing mechanism.

6. The automatic pipe patch oiling and air connection device of claim 5, wherein: The left end of the push plate (17) is connected with a second spring (18), and the left end of the second spring (18) is connected in the inside of the gas storage pipe (16) to constitute a reset mechanism.

7. The automatic pipe patch oiling and air connection device of claim 4, wherein: The inner end of the gas storage pipe (16) is connected with a sealing ring (19), and the outer end of the sealing ring (19) is fixed on the inner wall of the connector (10).

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