Air food car lifting platform hydraulic pipe leak-proof joint

Abstract

The utility model relates to aviation food car lifting platform hydraulic pipe anti -leakage joint technical field discloses an aviation food car lifting platform hydraulic pipe anti -leakage joint, including the connecting pipe, the one side fixed mounting of connecting pipe has the first connecting disc, the one side detachable mounting of first connecting disc has the first sealing ring, the one side detachable mounting of first sealing ring has the second connecting disc, when using this device, can set up the first sealing ring between the first connecting disc and the second connecting disc of setting, set up the second sealing ring between the first fixed disc and the second fixed disc, has constructed the double -sealed defense line, effectively blocks the hydraulic oil seepage path, through bidirectional fixed structure not only can resist the pressure impact that hydraulic oil transmission produced, still can avoid the loose, displacement of connection part in long -term use, ensure the firmness and long -term effectiveness of joint connection, can bring better use prospect.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-leakage connectors for hydraulic pipes of aviation food truck lifting platforms, specifically an anti-leakage connector for hydraulic pipes of aviation food truck lifting platforms. Background Technology

[0002] As a key piece of equipment in aviation ground support, the stable operation of the lifting platform of the aviation catering vehicle is directly related to the transportation efficiency and safety of aviation catering. The lifting action of the lifting platform mainly relies on the hydraulic system. As the core component of the pipeline connection in the hydraulic system, the hydraulic pipe joint undertakes the important functions of hydraulic oil transmission and sealing. Its sealing performance and structural stability are crucial to the operational reliability of the entire lifting platform.

[0003] However, it still has some drawbacks. For example, the current hydraulic pipe anti-leakage joints for aviation food truck lifting platforms have a relatively simple structure. Most joints only have a single sealing structure, and the seals are directly attached to the connection end face. There is a lack of effective auxiliary clamping and positioning mechanisms. Under the conditions of frequent movement of aviation food trucks and repeated start and stop of the lifting platform, the fluctuation of hydraulic oil transmission pressure can easily cause the seals to deform and shift, which in turn leads to hydraulic oil leakage. Moreover, the current connection and fixing methods of the joints are relatively simple, mostly using a single bolt or clip for fixing, which results in insufficient connection strength.

[0004] To address the aforementioned issues, this application proposes a leak-proof connector for the hydraulic pipes of an aviation food truck lifting platform. Utility Model Content

[0005] The purpose of this utility model is to provide a leak-proof connector for the hydraulic pipe of an aviation food truck lifting platform, so as to solve the problem of the relatively simple structure in the prior art mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic pipe anti-leakage connector for an aviation food truck lifting platform, comprising a connecting pipe, a first connecting plate fixedly installed on one side of the connecting pipe, a first sealing ring detachably installed on one side of the first connecting plate, and a second connecting plate detachably installed on one side of the first sealing ring.

[0007] Preferably, a support tube is fixedly connected to one side of the second connecting plate, and a first fixing plate is fixedly connected to one side of the support tube.

[0008] Preferably, a second sealing ring is detachably installed on one side of the first fixing plate, a second fixing plate is detachably installed on one side of the second sealing ring, and a fixing pipe is fixedly connected to one side of the second fixing plate.

[0009] Preferably, the first connecting plate, the second connecting plate, the first fixing plate, and the second fixing plate are respectively provided with a first connecting hole and a second connecting hole on one side. The inner cavity of the second connecting hole is threaded with a connecting threaded rod, and the outer wall of the connecting threaded rod is threaded with a connecting nut.

[0010] Preferably, a connecting rod is detachably connected to the inner cavity of the first connecting hole, a threaded block is fixedly connected to one side of the connecting rod, and a fixing nut is threadedly connected to the outer wall of the threaded block.

[0011] Preferably, the first sealing ring is located between the first connecting plate and the second connecting plate, and the second sealing ring is located between the first fixed plate and the second fixed plate.

[0012] Preferably, the connecting threaded rod and the connecting rod pass through the first connecting plate, the second connecting plate, the first fixed plate, and the second fixed plate, respectively, and the fixing nut is located on one side of the second fixed plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention constructs a double sealing barrier by setting a first sealing ring between the first and second connecting discs and a second sealing ring between the first and second fixed discs. Compared with the traditional single sealing structure, the double sealing rings can fully cover the gap between the discs and tightly fit the contact surface using elastic deformation, effectively blocking the hydraulic oil leakage path. Even under the conditions of frequent start-stop and hydraulic pressure fluctuations in the lifting platform of the aviation food truck, it can maintain a stable sealing effect, greatly reducing the risk of leakage. With the threaded engagement of the connecting thread rod and the connecting nut in the second connecting hole, the first and second connecting discs can be precisely locked. At the same time, the connecting rod, threaded block and fixing nut in the first connecting hole form a secondary fixation, locking the first and second connecting discs, the first and second fixed discs as a whole. The two-way fixing structure can not only resist the pressure impact generated by the transmission of hydraulic oil, but also prevent the connection parts from loosening or shifting during long-term use, ensuring the firmness and long-term effectiveness of the joint connection.

[0014] This utility model features a clear connection between the connecting pipe and the first connecting plate, the second connecting plate and the support pipe, the first fixing plate and the second fixing plate, and the second fixing plate and the fixing pipe. Each component is assembled via threaded connection or detachable installation. During assembly, installation can be completed simply by sequentially connecting the plate body, placing the sealing ring, and tightening the fasteners. When the sealing ring ages or a component malfunctions, the corresponding component, such as the first sealing ring, the second sealing ring, or the connecting threaded rod, can be disassembled and replaced individually without disassembling the entire joint, thus reducing maintenance difficulty and operating costs. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of a hydraulic pipe anti-leakage joint for an aviation food truck lifting platform according to this utility model; Figure 2 This is a schematic diagram of the structure of a hydraulic pipe anti-leakage joint for an aviation food truck lifting platform according to this utility model; Figure 3 This is a schematic diagram of the structure of a hydraulic pipe anti-leakage joint for an aviation food truck lifting platform according to this utility model; Figure 4 This is a schematic diagram of the structure of a hydraulic pipe anti-leakage joint for an aviation food truck lifting platform according to this utility model.

[0016] In the diagram: 1. Connecting pipe; 2. First connecting plate; 3. First sealing ring; 4. Second connecting plate; 5. Support pipe; 6. First fixing plate; 7. Second sealing ring; 8. Second fixing plate; 9. Fixing pipe; 10. First connecting hole; 11. Second connecting hole; 12. Connecting threaded rod; 13. Connecting nut; 14. Connecting rod; 15. Threaded block; 16. Fixing nut. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figures 1-2 This utility model provides a technical solution: a hydraulic pipe anti-leakage connector for an aviation food truck lifting platform, including a connecting pipe 1, a first connecting plate 2 fixedly installed on one side of the connecting pipe 1, a first sealing ring 3 detachably installed on one side of the first connecting plate 2, a second connecting plate 4 detachably installed on one side of the first sealing ring 3, a support pipe 5 fixedly connected to one side of the second connecting plate 4, a first fixing plate 6 fixedly connected to one side of the support pipe 5, a second sealing ring 7 detachably installed on one side of the first fixing plate 6, a first sealing ring 3 disposed between the first connecting plate 2 and the second connecting plate 4, and a second sealing ring 7 disposed between the first fixing plate 6 and the second fixing plate 8. The sealing ring 7 forms a double sealing defense. Compared with the traditional single sealing structure, the double sealing ring can fully cover the gap between the discs and use elastic deformation to tightly fit the contact surface, effectively blocking the hydraulic oil leakage path. Even under the conditions of frequent start-stop and hydraulic pressure fluctuation of the aviation food truck lifting platform, it can maintain a stable sealing effect and greatly reduce the risk of leakage. A second fixed plate 8 is detachably installed on one side of the second sealing ring 7. The first sealing ring 3 is located between the first connecting plate 2 and the second connecting plate 4, and the second sealing ring 7 is located between the first fixed plate 6 and the second fixed plate 8. A fixed pipe 9 is fixedly connected to one side of the second fixed plate 8.

[0019] In this embodiment, as Figures 3-4As shown, a first connecting hole 10 and a second connecting hole 11 are respectively opened on one side of the first connecting plate 2, the second connecting plate 4, the first fixed plate 6, and the second fixed plate 8. A connecting threaded rod 12 is threadedly connected to the inner cavity of the second connecting hole 11, and a connecting nut 13 is threadedly connected to the outer wall of the connecting threaded rod 12. A connecting rod 14 is detachably connected to the inner cavity of the first connecting hole 10. A threaded block 15 is fixedly connected to one side of the connecting rod 14, and a fixing nut 16 is threadedly connected to the outer wall of the threaded block 15. The connecting threaded rod 12 and the connecting rod 14 respectively pass through the first connecting plate 2, the second connecting plate 4, the first fixed plate 6, and the second fixed plate. 8. The fixing nut 16 is located on one side of the second fixing plate 8. With the help of the threaded engagement between the connecting thread rod 12 in the second connecting hole 11 and the connecting nut 13, the first connecting plate 2 and the second connecting plate 4 can be precisely locked. At the same time, the connecting rod 14, the threaded block 15 in the first connecting hole 10 and the fixing nut 16 form a secondary fixation, locking the first connecting plate 2, the second connecting plate 4, the first fixing plate 6, and the second fixing plate 8 as a whole. The two-way fixing structure can not only resist the pressure impact generated by the transmission of hydraulic oil, but also prevent the connection parts from loosening or shifting during long-term use, ensuring the firmness and long-term effectiveness of the joint connection.

[0020] Working principle: First, connect the connecting pipe 1 to the hydraulic pipe body of the lifting platform of the aviation food truck, with the first connecting plate 2 fixed on one side serving as the initial connection reference. Install the first sealing ring 3 between the first connecting plate 2 and the second connecting plate 4, utilizing the elastic deformation characteristics of the first sealing ring 3 to initially fill the gap between the two connecting plates, forming the first sealing line. Similarly, install the second sealing ring 7 between the first fixed plate 6 and the second fixed plate 8 to construct the second sealing line. The support pipe 5 serves as an intermediate connecting carrier, achieving a rigid connection between the second connecting plate 4 and the first fixed plate 6. The fixed pipe 9 is used to connect to another section of hydraulic pipe, completing the initial splicing of the overall pipeline. For the first connecting plate 2 and the second connecting plate 4, insert the connecting threaded rod 12 through the second connecting hole 11 opened in both. Through the threaded engagement of the connecting threaded rod 12 and the second connecting hole 11, the two connecting plates are brought closer together. Then, tighten the connecting nut 13 on the outer wall of the connecting threaded rod 12 to further lock the relative position of the two connecting plates, ensuring that the first sealing ring 3 is tightly compressed, enhancing the sealing effect. To ensure the reliability of the seal, the connecting rod 14 is inserted into the first connecting hole 10 corresponding to the first connecting plate 2, the second connecting plate 4, the first fixed plate 6, and the second fixed plate 8. The threaded block 15 on one side of the connecting rod 14 extends out to one side of the second fixed plate 8. By tightening the fixing nut 16 on the outer wall of the threaded block 15, the four sets of plates—the first connecting plate 2, the second connecting plate 4, the first fixed plate 6, and the second fixed plate 8—are completely fixed, preventing the seal from failing due to loosening of a single connection. When the hydraulic oil is transmitted in the channel formed by the connecting pipe 1, the support pipe 5, and the fixed pipe 9, the first sealing ring 3 and the second sealing ring 7 are tightly fitted to the contact surface of the corresponding plates under the pressure of the double fixing mechanism, completely blocking the path of hydraulic oil leakage from the gap between the plates. The threaded connection structure of the connecting threaded rod 12 and the connecting nut 13, and the connecting rod 14 and the fixing nut 16 can resist the pressure impact generated during the transmission of hydraulic oil, prevent displacement of the connection parts, ensure the stability of the sealing state, and ultimately achieve long-term leak-proof operation of the hydraulic pipe joint.

[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A leak-proof hydraulic pipe connector for an aviation food truck lifting platform, comprising a connecting pipe (1), characterized in that: A first connecting plate (2) is fixedly installed on one side of the connecting pipe (1), a first sealing ring (3) is detachably installed on one side of the first connecting plate (2), and a second connecting plate (4) is detachably installed on one side of the first sealing ring (3).

2. The anti-leakage connector for the hydraulic pipe of the lifting platform of an aviation food truck according to claim 1, characterized in that: A support tube (5) is fixedly connected to one side of the second connecting plate (4), and a first fixing plate (6) is fixedly connected to one side of the support tube (5).

3. The anti-leakage connector for the hydraulic pipe of an aviation food truck lifting platform according to claim 2, characterized in that: A second sealing ring (7) is detachably installed on one side of the first fixing plate (6), a second fixing plate (8) is detachably installed on one side of the second sealing ring (7), and a fixing pipe (9) is fixedly connected to one side of the second fixing plate (8).

4. The anti-leakage connector for the hydraulic pipe of an aviation food truck lifting platform according to claim 3, characterized in that: The first connecting plate (2), the second connecting plate (4), the first fixed plate (6) and the second fixed plate (8) are respectively provided with a first connecting hole (10) and a second connecting hole (11) on one side. The inner cavity of the second connecting hole (11) is threaded with a connecting thread rod (12), and the outer wall of the connecting thread rod (12) is threaded with a connecting nut (13).

5. The anti-leakage connector for the hydraulic pipe of an aviation food truck lifting platform according to claim 4, characterized in that: The inner cavity of the first connecting hole (10) is detachably connected to a connecting rod (14), and a threaded block (15) is fixedly connected to one side of the connecting rod (14). A fixing nut (16) is threadedly connected to the outer wall of the threaded block (15).

6. The anti-leakage connector for the hydraulic pipe of an aviation food truck lifting platform according to claim 3, characterized in that: The first sealing ring (3) is located between the first connecting plate (2) and the second connecting plate (4), and the second sealing ring (7) is located between the first fixed plate (6) and the second fixed plate (8).

7. The anti-leakage connector for the hydraulic pipe of an aviation food truck lifting platform according to claim 5, characterized in that: The connecting threaded rod (12) and connecting rod (14) pass through the first connecting plate (2), the second connecting plate (4) and the first fixed plate (6) and the second fixed plate (8) respectively, and the fixing nut (16) is located on one side of the second fixed plate (8).

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