A safety protection plug for a mobile heating vehicle quick connector

Abstract

The utility model discloses a kind of safety protection plugboard for mobile heat supply vehicle quick connector, it is related to pipeline safety protection plugboard technical field, comprising: quick connector mouth, one end outside of the quick connector mouth is provided with horn head limiting structure, the one end of quick connector mouth is equipped with sealing ring;The one end of quick connector mouth is equipped with plugboard main body, and plugboard main body is U-shaped, the top one side of plugboard main body is fixedly connected with antiskid handle, the top one side of plugboard main body is symmetrically provided with two screw holes, the other side of plugboard main body top is symmetrically provided with two limit clamping groove, the both ends outside of horn head limiting structure top are all fixedly connected with lug, and two lugs are matched with limit clamping groove;The utility model structure is simple and easy to process and convenient to assemble and disassemble, avoid the cumbersome installation step of traditional protection box, simultaneously solve the problem that traditional plug is easy to fall off, make leaked medium discharge downwards, avoid medium jet injures, improve the practicality and operating efficiency of protection plugboard.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline safety protection plugs, specifically relating to a safety protection plug for quick connectors of mobile heating vehicles. Background Technology

[0002] As a specialized device for providing temporary heating, the mobile heating vehicle uses a metal flexible hose quick-connector as the core interface for media transmission. The safety of this interface is directly related to the safety of the operators and the stable operation of the equipment. Therefore, it is necessary to equip the quick-connector with a special protective device.

[0003] Existing protective devices typically use ordinary plugs or protective boxes. However, ordinary plugs are easily blown off by pressurized media, causing direct spray injury in case of leakage. Furthermore, plugs lack a fixed storage structure, making them prone to loss during use and exhibiting poor adaptability. Protective boxes, on the other hand, are cumbersome to operate and limit the flexibility of interface layout, leading to inconvenience for personnel. Additionally, the installation of protective boxes requires two-handed operation, reducing work efficiency and increasing spare parts consumption and maintenance costs. Therefore, this applicant proposes a safety protective insert plate for quick-connect fittings in mobile heating vehicles to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a safety protection plug for quick connectors of mobile heating vehicles, so as to solve the problems in the above-mentioned background technology where ordinary plugs are easily blown off by pressurized media, which can easily cause injury from direct spray when the media leaks. The protective box is cumbersome to operate and limits the flexibility of interface layout, resulting in inconvenience for personnel, reduced work efficiency, and increased spare parts consumption and maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A safety protection plate for a quick connector of a mobile heating vehicle includes: a quick connector port, a ram's horn head limiting structure provided on the outside of one end of the quick connector port, and a sealing ring provided on one end of the quick connector port;

[0007] The quick connector has a U-shaped insert plate body at one end. A non-slip handle is fixedly connected to one side of the top of the insert plate body. Two threaded holes are symmetrically opened on one side of the top of the insert plate body. Two limiting slots are symmetrically opened on the other side of the top of the insert plate body. Protrusions are fixedly connected to both ends of the top of the ram's horn limiting structure, and the two protrusions are adapted to the limiting slots.

[0008] The top of the insert plate body is provided with a limiting snap-fit ​​structure. The top side surface of the limiting snap-fit ​​structure is symmetrically provided with screw holes that are compatible with the threaded holes. The bottom side of the limiting snap-fit ​​structure is fastened to the insert plate body by two fixing screws.

[0009] Furthermore, two positioning holes are symmetrically opened on one side of the top of the anti-slip handle, and connection holes are opened on the side wall surfaces of both ends of the ram's horn head limiting structure. A hanging chain assembly is provided between the anti-slip handle and the ram's horn head limiting structure.

[0010] Furthermore, the hanging chain assembly includes a hanging ring, one end of which is externally wound and connected to the inside of a connecting hole, and the other end of which is externally wound and connected to a hook via a chain, with the end of the hook away from the chain being externally wound and connected to the inside of a positioning hole.

[0011] Furthermore, a limiting plate is fixedly connected to one side of the bottom of the anti-slip handle, and the limiting plate is L-shaped.

[0012] Furthermore, the bottom of the ram's horn limiting structure is sleeved with the outer side of one end of the quick connector, and the outer side of the sealing ring is sleeved with the inner ring wall of one end of the quick connector.

[0013] Furthermore, the limiting snap-fit ​​structure is arc-shaped, and the bottom surface of the limiting snap-fit ​​structure away from the screw hole is in contact with the bottom surface of the anti-slip handle.

[0014] Compared with the prior art, the beneficial effects of the safety protection plug for quick connectors in mobile heating vehicles provided by this utility model are:

[0015] (1) During operation, the operator holds the anti-slip handle with one hand and aligns the main body of the insert plate with the ram's horn head limiting structure. The protrusion engages with the limiting slot of the main body of the insert plate. The internal arc-shaped limiting and engaging structure wraps around the engaging interface from the inside, solving the problem of traditional plugs easily falling off. The insert plate also forms a directional guide, which not only blocks the sealing ring to prevent it from falling off, but also allows the leaked medium to be discharged downwards, avoiding the medium spraying and injuring people. At the same time, the insert plate structure and the limiting and engaging structure can cover multiple specifications of interfaces, making the protective insert plate structure simple and easy to process, with low cost. It avoids the cumbersome installation steps of traditional protective boxes, making the interface layout more flexible, easy to install and remove, and improving the practicality and operating efficiency of the protective insert plate. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the limiting slot structure provided in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the limiting snap-fit ​​structure provided in an embodiment of the present utility model;

[0019] Figure 4 A schematic diagram of the fixing screw structure provided in an embodiment of this utility model;

[0020] Figure 5 A schematic diagram of the chain structure provided for an embodiment of this utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Insert plate body; 2. Anti-slip handle; 3. Limiting slot; 4. Ram's horn head limiting structure; 5. Sealing ring; 6. Limiting snap-fit ​​structure; 7. Fixing screw; 8. Quick connector; 9. Hanging chain assembly; 901. Chain; 902. Hanging ring; 903. Hook; 10. Limiting plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] As attached Figure 1 To be continued Figure 5 As shown:

[0025] Example 1:

[0026] This utility model provides a safety protection plug for a quick connector for a mobile heating vehicle, including a quick connector port 8, a ram's horn head limiting structure 4 on the outside of one end of the quick connector port 8, and a sealing ring 5 on one end of the quick connector port 8.

[0027] One end of the quick connector port 8 is provided with a plate body 1, and the plate body 1 is U-shaped. A non-slip handle 2 is fixedly connected to one side of the top of the plate body 1. Two threaded holes are symmetrically opened on one side of the top of the plate body 1, and two limiting slots 3 are symmetrically opened on the other side of the top of the plate body 1. Both ends of the top of the ram's horn limiting structure 4 are fixedly connected with protrusions, and the two protrusions are adapted to the limiting slots 3.

[0028] The top of the insert plate body 1 is provided with a limiting snap-fit ​​structure 6. The top side surface of the limiting snap-fit ​​structure 6 is symmetrically provided with screw holes that are compatible with the threaded holes. The bottom side of the limiting snap-fit ​​structure 6 is fastened to the insert plate body 1 by two fixing screws 7.

[0029] Two positioning holes are symmetrically opened on one side of the top of the anti-slip handle 2. Connection holes are opened on the side wall surfaces of both ends of the ram's horn head limiting structure 4. A hanging chain assembly 9 is provided between the anti-slip handle 2 and the ram's horn head limiting structure 4.

[0030] The chain assembly 9 includes a hanging ring 902. One end of the hanging ring 902 is externally wound and connected to the inside of the connecting hole. The other end of the hanging ring 902 is externally wound and connected to a hook 903 via a chain 901. The end of the hook 903 away from the chain 901 is externally wound and connected to the inside of the positioning hole.

[0031] A limiting plate 10 is fixedly connected to one side of the bottom of the anti-slip handle 2, and the limiting plate 10 is L-shaped.

[0032] The bottom of the ram's horn head limiting structure 4 is sleeved with the outer side of one end of the quick connector port 8, and the outer side of the sealing ring 5 is sleeved with the inner ring wall of one end of the quick connector port 8.

[0033] The limiting latching structure 6 is arc-shaped, and the bottom side surface of the limiting latching structure 6 away from the screw hole is in contact with the bottom side surface of the anti-slip handle 2.

[0034] As can be seen from the above, firstly, by securely connecting the bottom interface of the ram's horn head limiting structure 4 to the outside of the quick connector port 8, and then when the operator inserts the insert plate body 1 into the ram's horn head limiting structure 4 and seals the quick connector port 8, the protrusions on the two outer ends of the ram's horn head limiting structure 4 will fit and engage with the limiting slots 3 of the insert plate body 1, forming a preliminary mechanical engagement. At the same time, the arc-shaped limiting engagement structure 6 inside the insert plate body 1 is fastened to the insert plate body 1 by fixing screws 7, so that it can wrap around and engage the ends of the ram's horn head limiting structure 4 and the quick connector port 8 from the inside. When encountering high-pressure medium leakage, the thrust generated by the medium impacting the back of the insert plate body 1 is not This will cause the main body 1 of the plug plate to be blown off. At the same time, the main body 1 of the plug plate has a U-shaped groove structure, and its bottom forms a directional flow guiding area that allows the leaked medium to be discharged downwards. During the discharge process, a pressure relief gap is reserved to avoid pressure buildup in the pipeline, thereby improving the fixing effect of the safety protection plug plate. The non-sealed design of the plug plate main body 1 and the quick connector 8 (with reserved pressure relief gap) can balance the internal and external pressures and prevent the medium from being sprayed in an unexpected direction due to pressure buildup. This achieves the effect of downward directional discharge of the leaked medium, avoiding burns to workers and equipment impact damage caused by frontal spray of the medium. It solves the problems of traditional plugs being easily blown off and protective boxes being cumbersome to install, ensuring the safety of personnel and the surrounding area.

[0035] Personnel can insert the safety protection plate with one hand using the anti-slip handle 2. By holding the anti-slip handle 2 with one hand, the plate body 1 can be aligned with the end of the quick connector port 8 and inserted into the ram's horn head limiting structure 4 to complete the locking. When disassembling, applying force in the opposite direction will separate the plate from the protrusion at the end of the ram's horn head through the limiting slot 3, and then the plate body 1 can be lifted out. When not in use, the plate body 1 can be directly suspended below the quick connector by winding the hanging ring 902 of the hanging chain assembly 9 around the connecting hole of the ram's horn head limiting structure 4 and the hook 903 around the positioning hole of the anti-slip handle 2. This allows the plate body 1 to be directly suspended below the quick connector, making it easy to use and preventing loss. This improves the operating efficiency compared to traditional protective boxes, as the plate can be loaded and unloaded with one hand, reducing the intensity of personnel operation and reducing equipment operating costs.

[0036] The sealing ring 5 at one end of the quick-connect port 8 fits into the inner ring wall, which can initially block media leakage. At the same time, after the insert plate body 1 is snapped in, it forms a wrap-around protection for the quick-connect port 8 from the outside. This not only shields the sealing ring 5 inside the quick-connect, preventing dust and impurities from entering the pipe interface, but also, when the media leakage is small, the U-shaped structure of the insert plate body 1 can directly receive and guide the leaked media, preventing the sealing ring 5 from being damaged or blown off due to long-term media erosion. This extends the service life of the sealing ring 5 inside the quick-connect port 8, reduces the frequency of consumable replacement, and also prevents external pollutants from entering the pipeline, ensuring the purity of the media transmitted by the quick-connect of the mobile heating vehicle, and improving the operating efficiency and stability of the heating system.

[0037] In summary, when this safety protection insert is in operation, the ram's horn head limiting structure 4 is securely connected to the quick connector 8. The operator holds the anti-slip handle 2 with one hand and inserts the U-shaped insert body 1 into the ram's horn head limiting structure 4. Its protrusion engages with the limiting slot 3 of the insert body 1. The internal arc-shaped limiting engagement structure 6 is fastened to the insert body 1 by fixing screws 7, wrapping and engaging from the inside. This creates a directional flow guide area at the bottom of the insert body 1, allowing the leaked medium to drain downwards and avoid injury. When not in use, the interface can be suspended by hanging rings 902, chains 901, and hooks 903 to prevent loss. Furthermore, the insert body 1 can cover and protect the sealing ring 5 when in use, further improving the practicality and operational efficiency of the protective insert.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A safety protection plug for a quick-connect fitting in a mobile heating vehicle, comprising a quick-connect fitting port (8), characterized in that, The quick connector port (8) is provided with a ram's horn head limiting structure (4) on one end, and a sealing ring (5) is provided on one end of the quick connector port (8); One end of the quick connector (8) is provided with a plate body (1), and the plate body (1) is U-shaped. A non-slip handle (2) is fixedly connected to one side of the top of the plate body (1). Two threaded holes are symmetrically opened on one side of the top of the plate body (1). Two limiting slots (3) are symmetrically opened on the other side of the top of the plate body (1). Both ends of the top of the ram's horn limiting structure (4) are fixedly connected with protrusions, and the two protrusions are adapted to the limiting slots (3). The top of the insert plate body (1) is provided with a limiting snap-fit ​​structure (6). The top side surface of the limiting snap-fit ​​structure (6) is symmetrically provided with screw holes that are compatible with the threaded holes. The bottom side of the limiting snap-fit ​​structure (6) is fastened to the insert plate body (1) by two fixing screws (7).

2. A safety protection plug for a quick connector in a mobile heating vehicle according to claim 1, characterized in that: The anti-slip handle (2) has two symmetrical positioning holes on one side of its top. The two sidewalls of the ram's horn limiting structure (4) are provided with connection holes. A hanging chain assembly (9) is provided between the anti-slip handle (2) and the ram's horn limiting structure (4).

3. A safety protection plug for a quick connector in a mobile heating vehicle according to claim 2, characterized in that: The chain assembly (9) includes a hanging ring (902), one end of which is externally wound and connected to the inside of a connecting hole, and the other end of which is externally wound and connected to a hook (903) via a chain (901), and the end of the hook (903) away from the chain (901) is externally wound and connected to the inside of a positioning hole.

4. A safety protection plug for a quick connector in a mobile heating vehicle according to claim 1, characterized in that: The anti-slip handle (2) is fixedly connected to a limiting plate (10) on one side of its bottom, and the limiting plate (10) is L-shaped.

5. A safety protection plug for a quick connector in a mobile heating vehicle according to claim 1, characterized in that: The bottom of the ram's horn limiting structure (4) is sleeved with the outer side of one end of the quick connector (8), and the outer side of the sealing ring (5) is sleeved with the inner ring wall of one end of the quick connector (8).

6. A safety protection plug for a quick connector in a mobile heating vehicle according to claim 1, characterized in that: The limiting snap-fit ​​structure (6) is arc-shaped, and the bottom side surface of the limiting snap-fit ​​structure (6) away from the screw hole is in contact with the bottom side surface of the anti-slip handle (2).

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