A pull-off valve connection structure

Abstract

The application discloses a pull-off valve connecting structure, which belongs to the field of pull-off valves and comprises an oil outlet end valve body and an oil inlet end valve body. An annular clamping groove is arranged in the oil outlet end valve body, and a retainer groove is arranged on the outer wall of the oil inlet end valve body. A retainer is arranged in the annular clamping groove. When the oil outlet end valve body and the oil inlet end valve body are connected, the annular clamping groove and the retainer groove are located in the same plane. At this time, the outer side of the retainer is located in the annular clamping groove and the inner side of the retainer is sleeved on the retainer groove. The retainer is clamped on the retainer groove and the annular clamping groove, thereby realizing the connection of the oil outlet end valve body and the oil inlet end valve body. When the oil outlet end valve body and the oil inlet end valve body are accidentally pulled apart, the retainer is separated from the retainer groove, thereby realizing the automatic disconnection of the oil outlet end valve body and the oil inlet end valve body.

Description

Technical Field

[0001] This application relates to the field of breakaway valves, and more specifically, to a breakaway valve connection structure. Background Technology

[0002] The vapor recovery disconnect valve is the core emergency disconnect device connecting the fuel dispenser and the fuel nozzle. Its core function is to automatically disconnect the hose when it is subjected to a preset tension and achieve bidirectional sealing of the oil and gas circuits, so as to avoid safety accidents caused by the fuel dispenser tipping over and fuel leakage, while ensuring the accuracy of the gas-liquid ratio of the vapor recovery system. Therefore, the designed breakaway valve connection structure needs to ensure stability during daily use and automatic disconnection when subjected to a tension exceeding the preset limit.

[0003] A breakaway valve connection structure is now provided. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a breakaway valve connection structure, including: an oil outlet valve body and an oil inlet valve body. The oil outlet valve body has an annular groove, and the oil inlet valve body has a retaining ring groove on its outer wall. A retaining ring is installed in the annular groove. When the oil outlet valve body and the oil inlet valve body are connected, the annular groove and the retaining ring groove are located on the same plane. At this time, the outer side of the retaining ring is located in the annular groove, and the inner side is fitted on the retaining ring groove. The retaining ring is engaged with the retaining ring groove and the annular groove, thereby realizing the connection between the oil outlet valve body and the oil inlet valve body.

[0006] Furthermore, A breakaway valve connection structure further includes a mounting groove disposed on the outer end face of the oil inlet valve body, a toothed ring connected to the outer end face of the oil inlet valve body, a plurality of circumferentially distributed mounting teeth fixedly connected to the upper end of the toothed ring, and a locking block located in the mounting groove fixedly connected to the mounting teeth, wherein the locking block is used to limit and fix the toothed ring and the mounting teeth.

[0007] Furthermore, The oil outlet valve body is provided with a positioning groove, which is inclined with a narrow top and a wide bottom, and the lower side of the positioning groove is slidably connected to the upper end of the mounting tooth.

[0008] Furthermore, The retaining ring is C-shaped and can be deformed and expanded.

[0009] Furthermore, The retaining ring is provided in two parts, and the two retaining rings are connected in the middle by two connecting mechanisms.

[0010] Furthermore, The connecting mechanism includes a connector head connected to the end face of the retaining ring, two connecting studs threadedly connected to the connector head, the connecting studs being able to fix the connector head to the retaining ring, and an elastic element being fixedly connected between the two connector heads that are close to each other.

[0011] The beneficial effects of this application are: it provides a breakaway valve connection structure that achieves stability during daily use through a retaining ring, and automatically disconnects when subjected to a tension exceeding a preset value. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0014] In the attached diagram: Figure 1 This is an overall schematic diagram based on an embodiment of this application; Figure 2 This is a structural diagram of a portion of an embodiment, mainly illustrating the internal structure of this application; Figure 3 yes Figure 2 Enlarged schematic diagram of part of the structure; Figure 4 This is a schematic diagram of the retaining ring in Embodiment 1; Figure 5 This is a schematic diagram of the retaining ring in Embodiment 2; Figure 6 yes Figure 5 A schematic diagram of the structure of the connector section.

[0015] Figure label: 11. Oil outlet valve body; 12. Oil inlet valve body; 13. Annular groove; 14. Positioning groove; 15. Toothed ring; 16. Mounting tooth; 17. Locking block; 18. Mounting groove; 19. Retaining ring; 20. Connecting mechanism; 21. Connector; 22. Connecting stud; 23. Elastic element; 24. Retaining ring groove. Detailed Implementation

[0016] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0017] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0018] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0019] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0020] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Example 1, refer to Figures 1-4 A breakaway valve connection structure includes: an oil outlet valve body 11 and an oil inlet valve body 12. The oil outlet valve body 11 has an annular groove 13 inside, and the oil inlet valve body 12 has a retaining ring groove 24 on its outer wall. A retaining ring 19 is installed in the annular groove 13. When the oil outlet valve body 11 and the oil inlet valve body 12 are connected, the annular groove 13 and the retaining ring groove 24 are located on the same plane. At this time, the outer side of the retaining ring 19 is located in the annular groove 13 and the inner side is fitted on the retaining ring groove 24. The connection between the oil outlet valve body 11 and the oil inlet valve body 12 is achieved by the retaining ring 19 engaging with the retaining ring groove 24 and the annular groove 13.

[0022] When the oil outlet valve body 11 and the oil inlet valve body 12 are accidentally pulled apart, the retaining ring 19 disengages from the retaining ring groove 24, thereby achieving automatic disconnection of the oil outlet valve body 11 and the oil inlet valve body 12.

[0023] A breakaway valve connection structure further includes a mounting groove 18 disposed on the outer end face of the oil inlet valve body 12, a toothed ring 15 connected to the outer end face of the oil inlet valve body 12, a plurality of circumferentially distributed mounting teeth 16 fixedly connected to the upper end of the toothed ring 15, and a locking block 17 located in the mounting groove 18 fixedly connected to the mounting teeth 16, wherein the locking block 17 is used to limit and fix the toothed ring 15 and the mounting teeth 16.

[0024] The oil outlet valve body 11 is provided with a positioning groove 14. The positioning groove 14 is inclined with a narrow top and a wide bottom. The lower side of the positioning groove 14 is slidably connected to the upper end of the mounting tooth 16. Thus, when the oil outlet valve body 11 and the oil inlet valve body 12 are connected, positioning can be achieved by the abutment of the mounting tooth 16 with the upper end face of the positioning groove 14, which facilitates the connection work.

[0025] The retaining ring 19 is C-shaped and can be deformed and opened. When the oil outlet valve body 11 and the oil inlet valve body 12 are pulled apart, the retaining ring 19 can be deformed and opened, thereby leaving the retaining ring groove 24 and completing the automatic disconnection of the oil outlet valve body 11 and the oil inlet valve body 12.

[0026] Example 2, refer to Figures 5-6 The difference from Embodiment 1 is that, Two retaining rings 19 are provided, and the two retaining rings 19 are connected by two connecting mechanisms 20. When the oil outlet valve body 11 and the oil inlet valve body 12 are pulled apart, the connecting mechanism 20 breaks. The critical fracture strength of the broken part of the connecting mechanism 20 ensures that it will automatically disconnect when subjected to a preset tensile force.

[0027] The connecting mechanism 20 includes a connector 21 connected to the end face of the retaining ring 19. Two connecting studs 22 are threaded onto the connector 21. The connecting studs 22 can fix the connector 21 to the retaining ring 19. An elastic element 23 is fixedly connected between the two connectors 21 that are close to each other. The elastic element 23 will break when subjected to a preset tension, thereby separating the two connectors 21 and the two retaining rings 19. At this time, the oil outlet valve body 11 and the oil inlet valve body 12 are separated.

[0028] The elastic element 23 can be configured to be detachably snapped onto the connector 21 or connected by adhesive, thereby enabling the replacement of the elastic element 23 in case of damage.

[0029] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A breakaway valve connection structure, comprising: The oil outlet valve body (11) and the oil inlet valve body (12) are characterized in that: A breakaway valve connection structure also includes, An annular groove (13) is provided inside the oil outlet valve body (11). A retaining ring groove (24) is provided on the outer wall of the oil inlet valve body (12). The retaining ring (19) is installed in the annular groove (13). When the oil outlet valve body (11) and the oil inlet valve body (12) are connected, the annular groove (13) and the retaining ring groove (24) are located on the same plane. At this time, the outer side of the retaining ring (19) is located inside the annular groove (13) and the inner side is fitted on the retaining ring groove (24). The retaining ring (19) is engaged with the retaining ring groove (24) and the annular groove (13), thereby realizing the connection between the oil outlet valve body (11) and the oil inlet valve body (12).

2. The breakaway valve connection structure according to claim 1, characterized in that: A breakaway valve connection structure also includes, The mounting groove (18) is located on the outer end face of the oil inlet valve body (12). A toothed ring (15) is connected to the outer end face of the oil inlet valve body (12). Mounting teeth (16) are provided with several fixed connections to the upper end of the toothed ring (15). The locking block (17) is fixedly connected to the mounting tooth (16). The card block (17) is located in the mounting slot (18).

3. The breakaway valve connection structure according to claim 2, characterized in that: A breakaway valve connection structure also includes, A positioning slot (14) is provided inside the oil outlet valve body (11). The positioning slot (14) is inclined with a narrow top and a wide bottom, and the lower side of the positioning slot (14) is slidably connected to the upper end of the mounting tooth (16).

4. The breakaway valve connection structure according to claim 3, characterized in that: The retaining ring (19) is C-shaped and can be deformed and expanded.

5. The breakaway valve connection structure according to claim 3, characterized in that: Two retaining rings (19) are provided, and the two retaining rings (19) are connected in the middle by two connecting mechanisms (20).

6. The breakaway valve connection structure according to claim 5, characterized in that: The connecting mechanism (20) includes, Connector (21) is attached to the end face of the retaining ring (19). The connecting stud (22) has two threads that connect to the connector (21). The elastic element (23) is fixedly connected between the two adjacent connectors (21).

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